/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "nsDocShell.h" #include <algorithm> #include "mozilla/ArrayUtils.h" #include "mozilla/Attributes.h" #include "mozilla/AutoRestore.h" #include "mozilla/BasePrincipal.h" #include "mozilla/Casting.h" #include "mozilla/dom/ContentChild.h" #include "mozilla/dom/ChromeUtils.h" #include "mozilla/dom/Element.h" #include "mozilla/dom/TabChild.h" #include "mozilla/dom/ProfileTimelineMarkerBinding.h" #include "mozilla/dom/ScreenOrientation.h" #include "mozilla/dom/ToJSValue.h" #include "mozilla/dom/PermissionMessageUtils.h" #include "mozilla/dom/workers/ServiceWorkerManager.h" #include "mozilla/EventStateManager.h" #include "mozilla/LoadInfo.h" #include "mozilla/Preferences.h" #include "mozilla/Services.h" #include "mozilla/StartupTimeline.h" #include "mozilla/Telemetry.h" #include "mozilla/Unused.h" #include "Navigator.h" #include "URIUtils.h" #include "mozilla/dom/DocGroup.h" #include "mozilla/dom/TabGroup.h" #include "nsIContent.h" #include "nsIContentInlines.h" #include "nsIDocument.h" #include "nsIDOMDocument.h" #include "nsIDOMElement.h" #include "nsArray.h" #include "nsArrayUtils.h" #include "nsICaptivePortalService.h" #include "nsIDOMStorage.h" #include "nsIContentViewer.h" #include "nsIDocumentLoaderFactory.h" #include "nsCURILoader.h" #include "nsDocShellCID.h" #include "nsDOMCID.h" #include "nsNetCID.h" #include "nsNetUtil.h" #include "mozilla/net/ReferrerPolicy.h" #include "nsRect.h" #include "prenv.h" #include "nsIDOMWindow.h" #include "nsIGlobalObject.h" #include "nsIViewSourceChannel.h" #include "nsIWebBrowserChrome.h" #include "nsPoint.h" #include "nsIObserverService.h" #include "nsIPrompt.h" #include "nsIAuthPrompt.h" #include "nsIAuthPrompt2.h" #include "nsIChannelEventSink.h" #include "nsIAsyncVerifyRedirectCallback.h" #include "nsIScriptSecurityManager.h" #include "nsIScriptObjectPrincipal.h" #include "nsIScrollableFrame.h" #include "nsContentPolicyUtils.h" // NS_CheckContentLoadPolicy(...) #include "nsISeekableStream.h" #include "nsAutoPtr.h" #include "nsQueryObject.h" #include "nsIWritablePropertyBag2.h" #include "nsIAppShell.h" #include "nsWidgetsCID.h" #include "nsIInterfaceRequestorUtils.h" #include "nsView.h" #include "nsViewManager.h" #include "nsIScriptChannel.h" #include "nsITimedChannel.h" #include "nsIPrivacyTransitionObserver.h" #include "nsIReflowObserver.h" #include "nsIScrollObserver.h" #include "nsIDocShellTreeItem.h" #include "nsIChannel.h" #include "IHistory.h" #include "nsViewSourceHandler.h" #include "nsWhitespaceTokenizer.h" #include "nsICookieService.h" #include "nsIConsoleReportCollector.h" #include "nsObjectLoadingContent.h" // we want to explore making the document own the load group // so we can associate the document URI with the load group. // until this point, we have an evil hack: #include "nsIHttpChannelInternal.h" #include "nsPILoadGroupInternal.h" // Local Includes #include "nsDocShellLoadInfo.h" #include "nsCDefaultURIFixup.h" #include "nsDocShellEnumerator.h" #include "nsSHistory.h" #include "nsDocShellEditorData.h" #include "GeckoProfiler.h" #include "timeline/JavascriptTimelineMarker.h" // Helper Classes #include "nsError.h" #include "nsEscape.h" // Interfaces Needed #include "nsIFormPOSTActionChannel.h" #include "nsIUploadChannel.h" #include "nsIUploadChannel2.h" #include "nsIWebProgress.h" #include "nsILayoutHistoryState.h" #include "nsITimer.h" #include "nsISHistoryInternal.h" #include "nsIPrincipal.h" #include "nsNullPrincipal.h" #include "nsISHEntry.h" #include "nsIWindowWatcher.h" #include "nsIPromptFactory.h" #include "nsITransportSecurityInfo.h" #include "nsINode.h" #include "nsINSSErrorsService.h" #include "nsIApplicationCacheChannel.h" #include "nsIApplicationCacheContainer.h" #include "nsStreamUtils.h" #include "nsIController.h" #include "nsPICommandUpdater.h" #include "nsIDOMHTMLAnchorElement.h" #include "nsIWebBrowserChrome3.h" #include "nsITabChild.h" #include "nsISiteSecurityService.h" #include "nsStructuredCloneContainer.h" #include "nsIStructuredCloneContainer.h" #ifdef MOZ_PLACES #include "nsIFaviconService.h" #include "mozIPlacesPendingOperation.h" #include "mozIAsyncFavicons.h" #endif #include "nsINetworkPredictor.h" // Editor-related #include "nsIEditingSession.h" #include "nsPIDOMWindow.h" #include "nsGlobalWindow.h" #include "nsPIWindowRoot.h" #include "nsICachingChannel.h" #include "nsIMultiPartChannel.h" #include "nsIWyciwygChannel.h" // For reporting errors with the console service. // These can go away if error reporting is propagated up past nsDocShell. #include "nsIScriptError.h" // used to dispatch urls to default protocol handlers #include "nsCExternalHandlerService.h" #include "nsIExternalProtocolService.h" #include "nsFocusManager.h" #include "nsITextToSubURI.h" #include "nsIJARChannel.h" #include "mozilla/Logging.h" #include "nsISelectionDisplay.h" #include "nsIGlobalHistory2.h" #include "nsIFrame.h" #include "nsSubDocumentFrame.h" // for embedding #include "nsIWebBrowserChromeFocus.h" #if NS_PRINT_PREVIEW #include "nsIDocumentViewerPrint.h" #include "nsIWebBrowserPrint.h" #endif #include "nsContentUtils.h" #include "nsIContentSecurityPolicy.h" #include "nsILoadInfo.h" #include "nsSandboxFlags.h" #include "nsXULAppAPI.h" #include "nsDOMNavigationTiming.h" #include "nsISecurityUITelemetry.h" #include "nsIAppsService.h" #include "nsDSURIContentListener.h" #include "nsDocShellLoadTypes.h" #include "nsDocShellTransferableHooks.h" #include "nsICommandManager.h" #include "nsIDOMNode.h" #include "nsIDocShellTreeOwner.h" #include "nsIHttpChannel.h" #include "nsIIDNService.h" #include "nsIInputStreamChannel.h" #include "nsINestedURI.h" #include "nsISHContainer.h" #include "nsISHistory.h" #include "nsISecureBrowserUI.h" #include "nsISocketProvider.h" #include "nsIStringBundle.h" #include "nsIURIFixup.h" #include "nsIURILoader.h" #include "nsIURL.h" #include "nsIWebBrowserFind.h" #include "nsIWidget.h" #include "mozilla/dom/EncodingUtils.h" #include "mozilla/dom/PerformanceNavigation.h" #include "mozilla/dom/ScriptSettings.h" #ifdef MOZ_TOOLKIT_SEARCH #include "nsIBrowserSearchService.h" #endif #include "mozIThirdPartyUtil.h" static NS_DEFINE_CID(kAppShellCID, NS_APPSHELL_CID); #if defined(DEBUG_bryner) || defined(DEBUG_chb) //#define DEBUG_DOCSHELL_FOCUS #define DEBUG_PAGE_CACHE #endif #ifdef XP_WIN #include <process.h> #define getpid _getpid #else #include <unistd.h> // for getpid() #endif using namespace mozilla; using namespace mozilla::dom; using mozilla::dom::workers::ServiceWorkerManager; // True means sUseErrorPages has been added to // preferences var cache. static bool gAddedPreferencesVarCache = false; bool nsDocShell::sUseErrorPages = false; // Number of documents currently loading static int32_t gNumberOfDocumentsLoading = 0; // Global count of existing docshells. static int32_t gDocShellCount = 0; // Global count of docshells with the private attribute set static uint32_t gNumberOfPrivateDocShells = 0; // Global reference to the URI fixup service. nsIURIFixup* nsDocShell::sURIFixup = 0; // True means we validate window targets to prevent frameset // spoofing. Initialize this to a non-bolean value so we know to check // the pref on the creation of the first docshell. static uint32_t gValidateOrigin = 0xffffffff; // Hint for native dispatch of events on how long to delay after // all documents have loaded in milliseconds before favoring normal // native event dispatch priorites over performance // Can be overridden with docshell.event_starvation_delay_hint pref. #define NS_EVENT_STARVATION_DELAY_HINT 2000 #ifdef DEBUG static mozilla::LazyLogModule gDocShellLog("nsDocShell"); #endif static mozilla::LazyLogModule gDocShellLeakLog("nsDocShellLeak");; const char kBrandBundleURL[] = "chrome://branding/locale/brand.properties"; const char kAppstringsBundleURL[] = "chrome://global/locale/appstrings.properties"; static void FavorPerformanceHint(bool aPerfOverStarvation) { nsCOMPtr<nsIAppShell> appShell = do_GetService(kAppShellCID); if (appShell) { appShell->FavorPerformanceHint( aPerfOverStarvation, Preferences::GetUint("docshell.event_starvation_delay_hint", NS_EVENT_STARVATION_DELAY_HINT)); } } //***************************************************************************** // <a ping> support //***************************************************************************** #define PREF_PINGS_ENABLED "browser.send_pings" #define PREF_PINGS_MAX_PER_LINK "browser.send_pings.max_per_link" #define PREF_PINGS_REQUIRE_SAME_HOST "browser.send_pings.require_same_host" // Check prefs to see if pings are enabled and if so what restrictions might // be applied. // // @param maxPerLink // This parameter returns the number of pings that are allowed per link click // // @param requireSameHost // This parameter returns true if pings are restricted to the same host as // the document in which the click occurs. If the same host restriction is // imposed, then we still allow for pings to cross over to different // protocols and ports for flexibility and because it is not possible to send // a ping via FTP. // // @returns // true if pings are enabled and false otherwise. // static bool PingsEnabled(int32_t* aMaxPerLink, bool* aRequireSameHost) { bool allow = Preferences::GetBool(PREF_PINGS_ENABLED, false); *aMaxPerLink = 1; *aRequireSameHost = true; if (allow) { Preferences::GetInt(PREF_PINGS_MAX_PER_LINK, aMaxPerLink); Preferences::GetBool(PREF_PINGS_REQUIRE_SAME_HOST, aRequireSameHost); } return allow; } typedef void (*ForEachPingCallback)(void* closure, nsIContent* content, nsIURI* uri, nsIIOService* ios); static bool IsElementAnchor(nsIContent* aContent) { // Make sure we are dealing with either an <A> or <AREA> element in the HTML // or XHTML namespace. return aContent->IsAnyOfHTMLElements(nsGkAtoms::a, nsGkAtoms::area); } static void ForEachPing(nsIContent* aContent, ForEachPingCallback aCallback, void* aClosure) { // NOTE: Using nsIDOMHTMLAnchorElement::GetPing isn't really worth it here // since we'd still need to parse the resulting string. Instead, we // just parse the raw attribute. It might be nice if the content node // implemented an interface that exposed an enumeration of nsIURIs. // Make sure we are dealing with either an <A> or <AREA> element in the HTML // or XHTML namespace. if (!IsElementAnchor(aContent)) { return; } nsCOMPtr<nsIAtom> pingAtom = NS_Atomize("ping"); if (!pingAtom) { return; } nsAutoString value; aContent->GetAttr(kNameSpaceID_None, pingAtom, value); if (value.IsEmpty()) { return; } nsCOMPtr<nsIIOService> ios = do_GetIOService(); if (!ios) { return; } nsIDocument* doc = aContent->OwnerDoc(); nsWhitespaceTokenizer tokenizer(value); while (tokenizer.hasMoreTokens()) { nsCOMPtr<nsIURI> uri, baseURI = aContent->GetBaseURI(); ios->NewURI(NS_ConvertUTF16toUTF8(tokenizer.nextToken()), doc->GetDocumentCharacterSet().get(), baseURI, getter_AddRefs(uri)); // if we can't generate a valid URI, then there is nothing to do if (!uri) { continue; } // Explicitly not allow loading data: URIs bool isDataScheme = (NS_SUCCEEDED(uri->SchemeIs("data", &isDataScheme)) && isDataScheme); if (!isDataScheme) { aCallback(aClosure, aContent, uri, ios); } } } //---------------------------------------------------------------------- // We wait this many milliseconds before killing the ping channel... #define PING_TIMEOUT 10000 static void OnPingTimeout(nsITimer* aTimer, void* aClosure) { nsILoadGroup* loadGroup = static_cast<nsILoadGroup*>(aClosure); if (loadGroup) { loadGroup->Cancel(NS_ERROR_ABORT); } } class nsPingListener final : public nsIStreamListener { public: NS_DECL_ISUPPORTS NS_DECL_NSIREQUESTOBSERVER NS_DECL_NSISTREAMLISTENER nsPingListener() { } void SetLoadGroup(nsILoadGroup* aLoadGroup) { mLoadGroup = aLoadGroup; } nsresult StartTimeout(); private: ~nsPingListener(); nsCOMPtr<nsILoadGroup> mLoadGroup; nsCOMPtr<nsITimer> mTimer; }; NS_IMPL_ISUPPORTS(nsPingListener, nsIStreamListener, nsIRequestObserver) nsPingListener::~nsPingListener() { if (mTimer) { mTimer->Cancel(); mTimer = nullptr; } } nsresult nsPingListener::StartTimeout() { nsCOMPtr<nsITimer> timer = do_CreateInstance(NS_TIMER_CONTRACTID); if (timer) { nsresult rv = timer->InitWithFuncCallback(OnPingTimeout, mLoadGroup, PING_TIMEOUT, nsITimer::TYPE_ONE_SHOT); if (NS_SUCCEEDED(rv)) { mTimer = timer; return NS_OK; } } return NS_ERROR_OUT_OF_MEMORY; } NS_IMETHODIMP nsPingListener::OnStartRequest(nsIRequest* aRequest, nsISupports* aContext) { return NS_OK; } NS_IMETHODIMP nsPingListener::OnDataAvailable(nsIRequest* aRequest, nsISupports* aContext, nsIInputStream* aStream, uint64_t aOffset, uint32_t aCount) { uint32_t result; return aStream->ReadSegments(NS_DiscardSegment, nullptr, aCount, &result); } NS_IMETHODIMP nsPingListener::OnStopRequest(nsIRequest* aRequest, nsISupports* aContext, nsresult aStatus) { mLoadGroup = nullptr; if (mTimer) { mTimer->Cancel(); mTimer = nullptr; } return NS_OK; } struct MOZ_STACK_CLASS SendPingInfo { int32_t numPings; int32_t maxPings; bool requireSameHost; nsIURI* target; nsIURI* referrer; nsIDocShell* docShell; uint32_t referrerPolicy; }; static void SendPing(void* aClosure, nsIContent* aContent, nsIURI* aURI, nsIIOService* aIOService) { SendPingInfo* info = static_cast<SendPingInfo*>(aClosure); if (info->maxPings > -1 && info->numPings >= info->maxPings) { return; } nsIDocument* doc = aContent->OwnerDoc(); nsCOMPtr<nsIChannel> chan; NS_NewChannel(getter_AddRefs(chan), aURI, doc, info->requireSameHost ? nsILoadInfo::SEC_REQUIRE_SAME_ORIGIN_DATA_IS_BLOCKED : nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL, nsIContentPolicy::TYPE_PING, nullptr, // aLoadGroup nullptr, // aCallbacks nsIRequest::LOAD_NORMAL, // aLoadFlags, aIOService); if (!chan) { return; } // Don't bother caching the result of this URI load, but do not exempt // it from Safe Browsing. chan->SetLoadFlags(nsIRequest::INHIBIT_CACHING | nsIChannel::LOAD_CLASSIFY_URI); nsCOMPtr<nsIHttpChannel> httpChan = do_QueryInterface(chan); if (!httpChan) { return; } // This is needed in order for 3rd-party cookie blocking to work. nsCOMPtr<nsIHttpChannelInternal> httpInternal = do_QueryInterface(httpChan); if (httpInternal) { httpInternal->SetDocumentURI(doc->GetDocumentURI()); } httpChan->SetRequestMethod(NS_LITERAL_CSTRING("POST")); // Remove extraneous request headers (to reduce request size) httpChan->SetRequestHeader(NS_LITERAL_CSTRING("accept"), EmptyCString(), false); httpChan->SetRequestHeader(NS_LITERAL_CSTRING("accept-language"), EmptyCString(), false); httpChan->SetRequestHeader(NS_LITERAL_CSTRING("accept-encoding"), EmptyCString(), false); // Always send a Ping-To header. nsAutoCString pingTo; if (NS_SUCCEEDED(info->target->GetSpec(pingTo))) { httpChan->SetRequestHeader(NS_LITERAL_CSTRING("Ping-To"), pingTo, false); } nsCOMPtr<nsIScriptSecurityManager> sm = do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID); if (sm && info->referrer) { bool referrerIsSecure; uint32_t flags = nsIProtocolHandler::URI_SAFE_TO_LOAD_IN_SECURE_CONTEXT; nsresult rv = NS_URIChainHasFlags(info->referrer, flags, &referrerIsSecure); // Default to sending less data if NS_URIChainHasFlags() fails. referrerIsSecure = NS_FAILED(rv) || referrerIsSecure; bool sameOrigin = NS_SUCCEEDED(sm->CheckSameOriginURI(info->referrer, aURI, false)); // If both the address of the document containing the hyperlink being // audited and "ping URL" have the same origin or the document containing // the hyperlink being audited was not retrieved over an encrypted // connection, send a Ping-From header. if (sameOrigin || !referrerIsSecure) { nsAutoCString pingFrom; if (NS_SUCCEEDED(info->referrer->GetSpec(pingFrom))) { httpChan->SetRequestHeader(NS_LITERAL_CSTRING("Ping-From"), pingFrom, false); } } // If the document containing the hyperlink being audited was not retrieved // over an encrypted connection and its address does not have the same // origin as "ping URL", send a referrer. if (!sameOrigin && !referrerIsSecure) { httpChan->SetReferrerWithPolicy(info->referrer, info->referrerPolicy); } } nsCOMPtr<nsIUploadChannel2> uploadChan = do_QueryInterface(httpChan); if (!uploadChan) { return; } NS_NAMED_LITERAL_CSTRING(uploadData, "PING"); nsCOMPtr<nsIInputStream> uploadStream; NS_NewPostDataStream(getter_AddRefs(uploadStream), false, uploadData); if (!uploadStream) { return; } uploadChan->ExplicitSetUploadStream(uploadStream, NS_LITERAL_CSTRING("text/ping"), uploadData.Length(), NS_LITERAL_CSTRING("POST"), false); // The channel needs to have a loadgroup associated with it, so that we can // cancel the channel and any redirected channels it may create. nsCOMPtr<nsILoadGroup> loadGroup = do_CreateInstance(NS_LOADGROUP_CONTRACTID); if (!loadGroup) { return; } nsCOMPtr<nsIInterfaceRequestor> callbacks = do_QueryInterface(info->docShell); loadGroup->SetNotificationCallbacks(callbacks); chan->SetLoadGroup(loadGroup); RefPtr<nsPingListener> pingListener = new nsPingListener(); chan->AsyncOpen2(pingListener); // Even if AsyncOpen failed, we still count this as a successful ping. It's // possible that AsyncOpen may have failed after triggering some background // process that may have written something to the network. info->numPings++; // Prevent ping requests from stalling and never being garbage collected... if (NS_FAILED(pingListener->StartTimeout())) { // If we failed to setup the timer, then we should just cancel the channel // because we won't be able to ensure that it goes away in a timely manner. chan->Cancel(NS_ERROR_ABORT); return; } // if the channel openend successfully, then make the pingListener hold // a strong reference to the loadgroup which is released in ::OnStopRequest pingListener->SetLoadGroup(loadGroup); } // Spec: http://whatwg.org/specs/web-apps/current-work/#ping static void DispatchPings(nsIDocShell* aDocShell, nsIContent* aContent, nsIURI* aTarget, nsIURI* aReferrer, uint32_t aReferrerPolicy) { SendPingInfo info; if (!PingsEnabled(&info.maxPings, &info.requireSameHost)) { return; } if (info.maxPings == 0) { return; } info.numPings = 0; info.target = aTarget; info.referrer = aReferrer; info.referrerPolicy = aReferrerPolicy; info.docShell = aDocShell; ForEachPing(aContent, SendPing, &info); } static nsDOMNavigationTiming::Type ConvertLoadTypeToNavigationType(uint32_t aLoadType) { // Not initialized, assume it's normal load. if (aLoadType == 0) { aLoadType = LOAD_NORMAL; } auto result = nsDOMNavigationTiming::TYPE_RESERVED; switch (aLoadType) { case LOAD_NORMAL: case LOAD_NORMAL_EXTERNAL: case LOAD_NORMAL_BYPASS_CACHE: case LOAD_NORMAL_BYPASS_PROXY: case LOAD_NORMAL_BYPASS_PROXY_AND_CACHE: case LOAD_NORMAL_REPLACE: case LOAD_NORMAL_ALLOW_MIXED_CONTENT: case LOAD_LINK: case LOAD_STOP_CONTENT: case LOAD_REPLACE_BYPASS_CACHE: result = nsDOMNavigationTiming::TYPE_NAVIGATE; break; case LOAD_HISTORY: result = nsDOMNavigationTiming::TYPE_BACK_FORWARD; break; case LOAD_RELOAD_NORMAL: case LOAD_RELOAD_CHARSET_CHANGE: case LOAD_RELOAD_BYPASS_CACHE: case LOAD_RELOAD_BYPASS_PROXY: case LOAD_RELOAD_BYPASS_PROXY_AND_CACHE: case LOAD_RELOAD_ALLOW_MIXED_CONTENT: result = nsDOMNavigationTiming::TYPE_RELOAD; break; case LOAD_STOP_CONTENT_AND_REPLACE: case LOAD_REFRESH: case LOAD_BYPASS_HISTORY: case LOAD_ERROR_PAGE: case LOAD_PUSHSTATE: result = nsDOMNavigationTiming::TYPE_RESERVED; break; default: // NS_NOTREACHED("Unexpected load type value"); result = nsDOMNavigationTiming::TYPE_RESERVED; break; } return result; } static nsISHEntry* GetRootSHEntry(nsISHEntry* aEntry); static void IncreasePrivateDocShellCount() { gNumberOfPrivateDocShells++; if (gNumberOfPrivateDocShells > 1 || !XRE_IsContentProcess()) { return; } mozilla::dom::ContentChild* cc = mozilla::dom::ContentChild::GetSingleton(); cc->SendPrivateDocShellsExist(true); } static void DecreasePrivateDocShellCount() { MOZ_ASSERT(gNumberOfPrivateDocShells > 0); gNumberOfPrivateDocShells--; if (!gNumberOfPrivateDocShells) { if (XRE_IsContentProcess()) { dom::ContentChild* cc = dom::ContentChild::GetSingleton(); cc->SendPrivateDocShellsExist(false); return; } nsCOMPtr<nsIObserverService> obsvc = services::GetObserverService(); if (obsvc) { obsvc->NotifyObservers(nullptr, "last-pb-context-exited", nullptr); } } } static uint64_t gDocshellIDCounter = 0; nsDocShell::nsDocShell() : nsDocLoader() , mDefaultScrollbarPref(Scrollbar_Auto, Scrollbar_Auto) , mTreeOwner(nullptr) , mChromeEventHandler(nullptr) , mCharsetReloadState(eCharsetReloadInit) , mChildOffset(0) , mBusyFlags(BUSY_FLAGS_NONE) , mAppType(nsIDocShell::APP_TYPE_UNKNOWN) , mLoadType(0) , mMarginWidth(-1) , mMarginHeight(-1) , mItemType(typeContent) , mPreviousTransIndex(-1) , mLoadedTransIndex(-1) , mSandboxFlags(0) , mOrientationLock(eScreenOrientation_None) , mFullscreenAllowed(CHECK_ATTRIBUTES) , mCreated(false) , mAllowSubframes(true) , mAllowPlugins(true) , mAllowJavascript(true) , mAllowMetaRedirects(true) , mAllowImages(true) , mAllowMedia(true) , mAllowDNSPrefetch(true) , mAllowWindowControl(true) , mAllowContentRetargeting(true) , mAllowContentRetargetingOnChildren(true) , mUseErrorPages(false) , mObserveErrorPages(true) , mAllowAuth(true) , mAllowKeywordFixup(false) , mIsOffScreenBrowser(false) , mIsActive(true) , mDisableMetaRefreshWhenInactive(false) , mIsPrerendered(false) , mIsAppTab(false) , mUseGlobalHistory(false) , mUseRemoteTabs(false) , mDeviceSizeIsPageSize(false) , mWindowDraggingAllowed(false) , mInFrameSwap(false) , mInheritPrivateBrowsingId(true) , mCanExecuteScripts(false) , mFiredUnloadEvent(false) , mEODForCurrentDocument(false) , mURIResultedInDocument(false) , mIsBeingDestroyed(false) , mIsExecutingOnLoadHandler(false) , mIsPrintingOrPP(false) , mSavingOldViewer(false) , mAffectPrivateSessionLifetime(true) , mInvisible(false) , mHasLoadedNonBlankURI(false) , mBlankTiming(false) , mCreatingDocument(false) #ifdef DEBUG , mInEnsureScriptEnv(false) #endif , mDefaultLoadFlags(nsIRequest::LOAD_NORMAL) , mFrameType(FRAME_TYPE_REGULAR) , mPrivateBrowsingId(0) , mParentCharsetSource(0) , mJSRunToCompletionDepth(0) , mTouchEventsOverride(nsIDocShell::TOUCHEVENTS_OVERRIDE_NONE) { AssertOriginAttributesMatchPrivateBrowsing(); mHistoryID = ++gDocshellIDCounter; if (gDocShellCount++ == 0) { NS_ASSERTION(sURIFixup == nullptr, "Huh, sURIFixup not null in first nsDocShell ctor!"); CallGetService(NS_URIFIXUP_CONTRACTID, &sURIFixup); } MOZ_LOG(gDocShellLeakLog, LogLevel::Debug, ("DOCSHELL %p created\n", this)); #ifdef DEBUG // We're counting the number of |nsDocShells| to help find leaks ++gNumberOfDocShells; if (!PR_GetEnv("MOZ_QUIET")) { printf_stderr("++DOCSHELL %p == %ld [pid = %d] [id = %llu]\n", (void*)this, gNumberOfDocShells, getpid(), AssertedCast<unsigned long long>(mHistoryID)); } #endif } nsDocShell::~nsDocShell() { MOZ_ASSERT(!mObserved); // Avoid notifying observers while we're in the dtor. mIsBeingDestroyed = true; Destroy(); nsCOMPtr<nsISHistoryInternal> shPrivate(do_QueryInterface(mSessionHistory)); if (shPrivate) { shPrivate->SetRootDocShell(nullptr); } if (--gDocShellCount == 0) { NS_IF_RELEASE(sURIFixup); } if (gDocShellLeakLog) { MOZ_LOG(gDocShellLeakLog, LogLevel::Debug, ("DOCSHELL %p destroyed\n", this)); } #ifdef DEBUG // We're counting the number of |nsDocShells| to help find leaks --gNumberOfDocShells; if (!PR_GetEnv("MOZ_QUIET")) { printf_stderr("--DOCSHELL %p == %ld [pid = %d] [id = %llu]\n", (void*)this, gNumberOfDocShells, getpid(), AssertedCast<unsigned long long>(mHistoryID)); } #endif } nsresult nsDocShell::Init() { nsresult rv = nsDocLoader::Init(); NS_ENSURE_SUCCESS(rv, rv); NS_ASSERTION(mLoadGroup, "Something went wrong!"); mContentListener = new nsDSURIContentListener(this); rv = mContentListener->Init(); NS_ENSURE_SUCCESS(rv, rv); // We want to hold a strong ref to the loadgroup, so it better hold a weak // ref to us... use an InterfaceRequestorProxy to do this. nsCOMPtr<nsIInterfaceRequestor> proxy = new InterfaceRequestorProxy(static_cast<nsIInterfaceRequestor*>(this)); mLoadGroup->SetNotificationCallbacks(proxy); rv = nsDocLoader::AddDocLoaderAsChildOfRoot(this); NS_ENSURE_SUCCESS(rv, rv); // Add as |this| a progress listener to itself. A little weird, but // simpler than reproducing all the listener-notification logic in // overrides of the various methods via which nsDocLoader can be // notified. Note that this holds an nsWeakPtr to ourselves, so it's ok. return AddProgressListener(this, nsIWebProgress::NOTIFY_STATE_DOCUMENT | nsIWebProgress::NOTIFY_STATE_NETWORK); } void nsDocShell::DestroyChildren() { nsCOMPtr<nsIDocShellTreeItem> shell; nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { shell = do_QueryObject(iter.GetNext()); NS_ASSERTION(shell, "docshell has null child"); if (shell) { shell->SetTreeOwner(nullptr); } } nsDocLoader::DestroyChildren(); } NS_IMPL_ADDREF_INHERITED(nsDocShell, nsDocLoader) NS_IMPL_RELEASE_INHERITED(nsDocShell, nsDocLoader) NS_INTERFACE_MAP_BEGIN(nsDocShell) NS_INTERFACE_MAP_ENTRY(nsIDocShell) NS_INTERFACE_MAP_ENTRY(nsIDocShellTreeItem) NS_INTERFACE_MAP_ENTRY(nsIWebNavigation) NS_INTERFACE_MAP_ENTRY(nsIBaseWindow) NS_INTERFACE_MAP_ENTRY(nsIScrollable) NS_INTERFACE_MAP_ENTRY(nsITextScroll) NS_INTERFACE_MAP_ENTRY(nsIDocCharset) NS_INTERFACE_MAP_ENTRY(nsIRefreshURI) NS_INTERFACE_MAP_ENTRY(nsIWebProgressListener) NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference) NS_INTERFACE_MAP_ENTRY(nsIContentViewerContainer) NS_INTERFACE_MAP_ENTRY(nsIWebPageDescriptor) NS_INTERFACE_MAP_ENTRY(nsIAuthPromptProvider) NS_INTERFACE_MAP_ENTRY(nsILoadContext) NS_INTERFACE_MAP_ENTRY(nsIWebShellServices) NS_INTERFACE_MAP_ENTRY(nsILinkHandler) NS_INTERFACE_MAP_ENTRY(nsIClipboardCommands) NS_INTERFACE_MAP_ENTRY(nsIDOMStorageManager) NS_INTERFACE_MAP_ENTRY(nsINetworkInterceptController) NS_INTERFACE_MAP_ENTRY(nsIDeprecationWarner) NS_INTERFACE_MAP_END_INHERITING(nsDocLoader) NS_IMETHODIMP nsDocShell::GetInterface(const nsIID& aIID, void** aSink) { NS_PRECONDITION(aSink, "null out param"); *aSink = nullptr; if (aIID.Equals(NS_GET_IID(nsICommandManager))) { NS_ENSURE_SUCCESS(EnsureCommandHandler(), NS_ERROR_FAILURE); *aSink = mCommandManager; } else if (aIID.Equals(NS_GET_IID(nsIURIContentListener))) { *aSink = mContentListener; } else if ((aIID.Equals(NS_GET_IID(nsIScriptGlobalObject)) || aIID.Equals(NS_GET_IID(nsIGlobalObject)) || aIID.Equals(NS_GET_IID(nsPIDOMWindowOuter)) || aIID.Equals(NS_GET_IID(mozIDOMWindowProxy)) || aIID.Equals(NS_GET_IID(nsIDOMWindow)) || aIID.Equals(NS_GET_IID(nsIDOMWindowInternal))) && NS_SUCCEEDED(EnsureScriptEnvironment())) { return mScriptGlobal->QueryInterface(aIID, aSink); } else if (aIID.Equals(NS_GET_IID(nsIDOMDocument)) && NS_SUCCEEDED(EnsureContentViewer())) { mContentViewer->GetDOMDocument((nsIDOMDocument**)aSink); return *aSink ? NS_OK : NS_NOINTERFACE; } else if (aIID.Equals(NS_GET_IID(nsIDocument)) && NS_SUCCEEDED(EnsureContentViewer())) { nsCOMPtr<nsIDocument> doc = mContentViewer->GetDocument(); doc.forget(aSink); return *aSink ? NS_OK : NS_NOINTERFACE; } else if (aIID.Equals(NS_GET_IID(nsIApplicationCacheContainer))) { *aSink = nullptr; // Return application cache associated with this docshell, if any nsCOMPtr<nsIContentViewer> contentViewer; GetContentViewer(getter_AddRefs(contentViewer)); if (!contentViewer) { return NS_ERROR_NO_INTERFACE; } nsCOMPtr<nsIDOMDocument> domDoc; contentViewer->GetDOMDocument(getter_AddRefs(domDoc)); NS_ASSERTION(domDoc, "Should have a document."); if (!domDoc) { return NS_ERROR_NO_INTERFACE; } #if defined(DEBUG) MOZ_LOG(gDocShellLog, LogLevel::Debug, ("nsDocShell[%p]: returning app cache container %p", this, domDoc.get())); #endif return domDoc->QueryInterface(aIID, aSink); } else if (aIID.Equals(NS_GET_IID(nsIPrompt)) && NS_SUCCEEDED(EnsureScriptEnvironment())) { nsresult rv; nsCOMPtr<nsIWindowWatcher> wwatch = do_GetService(NS_WINDOWWATCHER_CONTRACTID, &rv); NS_ENSURE_SUCCESS(rv, rv); // Get the an auth prompter for our window so that the parenting // of the dialogs works as it should when using tabs. nsIPrompt* prompt; rv = wwatch->GetNewPrompter(mScriptGlobal->AsOuter(), &prompt); NS_ENSURE_SUCCESS(rv, rv); *aSink = prompt; return NS_OK; } else if (aIID.Equals(NS_GET_IID(nsIAuthPrompt)) || aIID.Equals(NS_GET_IID(nsIAuthPrompt2))) { return NS_SUCCEEDED(GetAuthPrompt(PROMPT_NORMAL, aIID, aSink)) ? NS_OK : NS_NOINTERFACE; } else if (aIID.Equals(NS_GET_IID(nsISHistory))) { nsCOMPtr<nsISHistory> shistory; nsresult rv = GetSessionHistory(getter_AddRefs(shistory)); if (NS_SUCCEEDED(rv) && shistory) { shistory.forget(aSink); return NS_OK; } return NS_NOINTERFACE; } else if (aIID.Equals(NS_GET_IID(nsIWebBrowserFind))) { nsresult rv = EnsureFind(); if (NS_FAILED(rv)) { return rv; } *aSink = mFind; NS_ADDREF((nsISupports*)*aSink); return NS_OK; } else if (aIID.Equals(NS_GET_IID(nsIEditingSession))) { nsCOMPtr<nsIEditingSession> es; GetEditingSession(getter_AddRefs(es)); es.forget(aSink); return *aSink ? NS_OK : NS_NOINTERFACE; } else if (aIID.Equals(NS_GET_IID(nsIClipboardDragDropHookList)) && NS_SUCCEEDED(EnsureTransferableHookData())) { *aSink = mTransferableHookData; NS_ADDREF((nsISupports*)*aSink); return NS_OK; } else if (aIID.Equals(NS_GET_IID(nsISelectionDisplay))) { nsIPresShell* shell = GetPresShell(); if (shell) { return shell->QueryInterface(aIID, aSink); } } else if (aIID.Equals(NS_GET_IID(nsIDocShellTreeOwner))) { nsCOMPtr<nsIDocShellTreeOwner> treeOwner; nsresult rv = GetTreeOwner(getter_AddRefs(treeOwner)); if (NS_SUCCEEDED(rv) && treeOwner) { return treeOwner->QueryInterface(aIID, aSink); } } else if (aIID.Equals(NS_GET_IID(nsITabChild))) { *aSink = GetTabChild().take(); return *aSink ? NS_OK : NS_ERROR_FAILURE; } else if (aIID.Equals(NS_GET_IID(nsIContentFrameMessageManager))) { nsCOMPtr<nsITabChild> tabChild = do_GetInterface(static_cast<nsIDocShell*>(this)); nsCOMPtr<nsIContentFrameMessageManager> mm; if (tabChild) { tabChild->GetMessageManager(getter_AddRefs(mm)); } else { if (nsPIDOMWindowOuter* win = GetWindow()) { mm = do_QueryInterface(win->GetParentTarget()); } } *aSink = mm.get(); } else { return nsDocLoader::GetInterface(aIID, aSink); } NS_IF_ADDREF(((nsISupports*)*aSink)); return *aSink ? NS_OK : NS_NOINTERFACE; } uint32_t nsDocShell::ConvertDocShellLoadInfoToLoadType( nsDocShellInfoLoadType aDocShellLoadType) { uint32_t loadType = LOAD_NORMAL; switch (aDocShellLoadType) { case nsIDocShellLoadInfo::loadNormal: loadType = LOAD_NORMAL; break; case nsIDocShellLoadInfo::loadNormalReplace: loadType = LOAD_NORMAL_REPLACE; break; case nsIDocShellLoadInfo::loadNormalExternal: loadType = LOAD_NORMAL_EXTERNAL; break; case nsIDocShellLoadInfo::loadHistory: loadType = LOAD_HISTORY; break; case nsIDocShellLoadInfo::loadNormalBypassCache: loadType = LOAD_NORMAL_BYPASS_CACHE; break; case nsIDocShellLoadInfo::loadNormalBypassProxy: loadType = LOAD_NORMAL_BYPASS_PROXY; break; case nsIDocShellLoadInfo::loadNormalBypassProxyAndCache: loadType = LOAD_NORMAL_BYPASS_PROXY_AND_CACHE; break; case nsIDocShellLoadInfo::loadNormalAllowMixedContent: loadType = LOAD_NORMAL_ALLOW_MIXED_CONTENT; break; case nsIDocShellLoadInfo::loadReloadNormal: loadType = LOAD_RELOAD_NORMAL; break; case nsIDocShellLoadInfo::loadReloadCharsetChange: loadType = LOAD_RELOAD_CHARSET_CHANGE; break; case nsIDocShellLoadInfo::loadReloadBypassCache: loadType = LOAD_RELOAD_BYPASS_CACHE; break; case nsIDocShellLoadInfo::loadReloadBypassProxy: loadType = LOAD_RELOAD_BYPASS_PROXY; break; case nsIDocShellLoadInfo::loadReloadBypassProxyAndCache: loadType = LOAD_RELOAD_BYPASS_PROXY_AND_CACHE; break; case nsIDocShellLoadInfo::loadLink: loadType = LOAD_LINK; break; case nsIDocShellLoadInfo::loadRefresh: loadType = LOAD_REFRESH; break; case nsIDocShellLoadInfo::loadBypassHistory: loadType = LOAD_BYPASS_HISTORY; break; case nsIDocShellLoadInfo::loadStopContent: loadType = LOAD_STOP_CONTENT; break; case nsIDocShellLoadInfo::loadStopContentAndReplace: loadType = LOAD_STOP_CONTENT_AND_REPLACE; break; case nsIDocShellLoadInfo::loadPushState: loadType = LOAD_PUSHSTATE; break; case nsIDocShellLoadInfo::loadReplaceBypassCache: loadType = LOAD_REPLACE_BYPASS_CACHE; break; case nsIDocShellLoadInfo::loadReloadMixedContent: loadType = LOAD_RELOAD_ALLOW_MIXED_CONTENT; break; default: NS_NOTREACHED("Unexpected nsDocShellInfoLoadType value"); } return loadType; } nsDocShellInfoLoadType nsDocShell::ConvertLoadTypeToDocShellLoadInfo(uint32_t aLoadType) { nsDocShellInfoLoadType docShellLoadType = nsIDocShellLoadInfo::loadNormal; switch (aLoadType) { case LOAD_NORMAL: docShellLoadType = nsIDocShellLoadInfo::loadNormal; break; case LOAD_NORMAL_REPLACE: docShellLoadType = nsIDocShellLoadInfo::loadNormalReplace; break; case LOAD_NORMAL_EXTERNAL: docShellLoadType = nsIDocShellLoadInfo::loadNormalExternal; break; case LOAD_NORMAL_BYPASS_CACHE: docShellLoadType = nsIDocShellLoadInfo::loadNormalBypassCache; break; case LOAD_NORMAL_BYPASS_PROXY: docShellLoadType = nsIDocShellLoadInfo::loadNormalBypassProxy; break; case LOAD_NORMAL_BYPASS_PROXY_AND_CACHE: docShellLoadType = nsIDocShellLoadInfo::loadNormalBypassProxyAndCache; break; case LOAD_NORMAL_ALLOW_MIXED_CONTENT: docShellLoadType = nsIDocShellLoadInfo::loadNormalAllowMixedContent; break; case LOAD_HISTORY: docShellLoadType = nsIDocShellLoadInfo::loadHistory; break; case LOAD_RELOAD_NORMAL: docShellLoadType = nsIDocShellLoadInfo::loadReloadNormal; break; case LOAD_RELOAD_CHARSET_CHANGE: docShellLoadType = nsIDocShellLoadInfo::loadReloadCharsetChange; break; case LOAD_RELOAD_BYPASS_CACHE: docShellLoadType = nsIDocShellLoadInfo::loadReloadBypassCache; break; case LOAD_RELOAD_BYPASS_PROXY: docShellLoadType = nsIDocShellLoadInfo::loadReloadBypassProxy; break; case LOAD_RELOAD_BYPASS_PROXY_AND_CACHE: docShellLoadType = nsIDocShellLoadInfo::loadReloadBypassProxyAndCache; break; case LOAD_LINK: docShellLoadType = nsIDocShellLoadInfo::loadLink; break; case LOAD_REFRESH: docShellLoadType = nsIDocShellLoadInfo::loadRefresh; break; case LOAD_BYPASS_HISTORY: case LOAD_ERROR_PAGE: docShellLoadType = nsIDocShellLoadInfo::loadBypassHistory; break; case LOAD_STOP_CONTENT: docShellLoadType = nsIDocShellLoadInfo::loadStopContent; break; case LOAD_STOP_CONTENT_AND_REPLACE: docShellLoadType = nsIDocShellLoadInfo::loadStopContentAndReplace; break; case LOAD_PUSHSTATE: docShellLoadType = nsIDocShellLoadInfo::loadPushState; break; case LOAD_REPLACE_BYPASS_CACHE: docShellLoadType = nsIDocShellLoadInfo::loadReplaceBypassCache; break; case LOAD_RELOAD_ALLOW_MIXED_CONTENT: docShellLoadType = nsIDocShellLoadInfo::loadReloadMixedContent; break; default: NS_NOTREACHED("Unexpected load type value"); } return docShellLoadType; } NS_IMETHODIMP nsDocShell::LoadURI(nsIURI* aURI, nsIDocShellLoadInfo* aLoadInfo, uint32_t aLoadFlags, bool aFirstParty) { NS_PRECONDITION(aLoadInfo || (aLoadFlags & EXTRA_LOAD_FLAGS) == 0, "Unexpected flags"); NS_PRECONDITION((aLoadFlags & 0xf) == 0, "Should not have these flags set"); // Note: we allow loads to get through here even if mFiredUnloadEvent is // true; that case will get handled in LoadInternal or LoadHistoryEntry, // so we pass false as the second parameter to IsNavigationAllowed. // However, we don't allow the page to change location *in the middle of* // firing beforeunload, so we do need to check if *beforeunload* is currently // firing, so we call IsNavigationAllowed rather than just IsPrintingOrPP. if (!IsNavigationAllowed(true, false)) { return NS_OK; // JS may not handle returning of an error code } nsCOMPtr<nsIURI> referrer; nsCOMPtr<nsIURI> originalURI; bool loadReplace = false; nsCOMPtr<nsIInputStream> postStream; nsCOMPtr<nsIInputStream> headersStream; nsCOMPtr<nsIPrincipal> triggeringPrincipal; bool inheritPrincipal = false; bool principalIsExplicit = false; bool sendReferrer = true; uint32_t referrerPolicy = mozilla::net::RP_Default; bool isSrcdoc = false; nsCOMPtr<nsISHEntry> shEntry; nsXPIDLString target; nsAutoString srcdoc; nsCOMPtr<nsIDocShell> sourceDocShell; nsCOMPtr<nsIURI> baseURI; uint32_t loadType = MAKE_LOAD_TYPE(LOAD_NORMAL, aLoadFlags); NS_ENSURE_ARG(aURI); if (!StartupTimeline::HasRecord(StartupTimeline::FIRST_LOAD_URI) && mItemType == typeContent && !NS_IsAboutBlank(aURI)) { StartupTimeline::RecordOnce(StartupTimeline::FIRST_LOAD_URI); } // Extract the info from the DocShellLoadInfo struct... if (aLoadInfo) { aLoadInfo->GetReferrer(getter_AddRefs(referrer)); aLoadInfo->GetOriginalURI(getter_AddRefs(originalURI)); aLoadInfo->GetLoadReplace(&loadReplace); nsDocShellInfoLoadType lt = nsIDocShellLoadInfo::loadNormal; aLoadInfo->GetLoadType(<); // Get the appropriate loadType from nsIDocShellLoadInfo type loadType = ConvertDocShellLoadInfoToLoadType(lt); aLoadInfo->GetTriggeringPrincipal(getter_AddRefs(triggeringPrincipal)); aLoadInfo->GetInheritPrincipal(&inheritPrincipal); aLoadInfo->GetPrincipalIsExplicit(&principalIsExplicit); aLoadInfo->GetSHEntry(getter_AddRefs(shEntry)); aLoadInfo->GetTarget(getter_Copies(target)); aLoadInfo->GetPostDataStream(getter_AddRefs(postStream)); aLoadInfo->GetHeadersStream(getter_AddRefs(headersStream)); aLoadInfo->GetSendReferrer(&sendReferrer); aLoadInfo->GetReferrerPolicy(&referrerPolicy); aLoadInfo->GetIsSrcdocLoad(&isSrcdoc); aLoadInfo->GetSrcdocData(srcdoc); aLoadInfo->GetSourceDocShell(getter_AddRefs(sourceDocShell)); aLoadInfo->GetBaseURI(getter_AddRefs(baseURI)); } #if defined(DEBUG) if (MOZ_LOG_TEST(gDocShellLog, LogLevel::Debug)) { nsAutoCString uristr; aURI->GetAsciiSpec(uristr); MOZ_LOG(gDocShellLog, LogLevel::Debug, ("nsDocShell[%p]: loading %s with flags 0x%08x", this, uristr.get(), aLoadFlags)); } #endif if (!shEntry && !LOAD_TYPE_HAS_FLAGS(loadType, LOAD_FLAGS_REPLACE_HISTORY)) { // First verify if this is a subframe. nsCOMPtr<nsIDocShellTreeItem> parentAsItem; GetSameTypeParent(getter_AddRefs(parentAsItem)); nsCOMPtr<nsIDocShell> parentDS(do_QueryInterface(parentAsItem)); uint32_t parentLoadType; if (parentDS && parentDS != static_cast<nsIDocShell*>(this)) { /* OK. It is a subframe. Checkout the * parent's loadtype. If the parent was loaded thro' a history * mechanism, then get the SH entry for the child from the parent. * This is done to restore frameset navigation while going back/forward. * If the parent was loaded through any other loadType, set the * child's loadType too accordingly, so that session history does not * get confused. */ // Get the parent's load type parentDS->GetLoadType(&parentLoadType); // Get the ShEntry for the child from the parent nsCOMPtr<nsISHEntry> currentSH; bool oshe = false; parentDS->GetCurrentSHEntry(getter_AddRefs(currentSH), &oshe); bool dynamicallyAddedChild = mDynamicallyCreated; if (!dynamicallyAddedChild && !oshe && currentSH) { currentSH->HasDynamicallyAddedChild(&dynamicallyAddedChild); } if (!dynamicallyAddedChild) { // Only use the old SHEntry, if we're sure enough that // it wasn't originally for some other frame. parentDS->GetChildSHEntry(mChildOffset, getter_AddRefs(shEntry)); } // Make some decisions on the child frame's loadType based on the // parent's loadType. if (!mCurrentURI) { // This is a newly created frame. Check for exception cases first. // By default the subframe will inherit the parent's loadType. if (shEntry && (parentLoadType == LOAD_NORMAL || parentLoadType == LOAD_LINK || parentLoadType == LOAD_NORMAL_EXTERNAL)) { // The parent was loaded normally. In this case, this *brand new* // child really shouldn't have a SHEntry. If it does, it could be // because the parent is replacing an existing frame with a new frame, // in the onLoadHandler. We don't want this url to get into session // history. Clear off shEntry, and set load type to // LOAD_BYPASS_HISTORY. bool inOnLoadHandler = false; parentDS->GetIsExecutingOnLoadHandler(&inOnLoadHandler); if (inOnLoadHandler) { loadType = LOAD_NORMAL_REPLACE; shEntry = nullptr; } } else if (parentLoadType == LOAD_REFRESH) { // Clear shEntry. For refresh loads, we have to load // what comes thro' the pipe, not what's in history. shEntry = nullptr; } else if ((parentLoadType == LOAD_BYPASS_HISTORY) || (shEntry && ((parentLoadType & LOAD_CMD_HISTORY) || (parentLoadType == LOAD_RELOAD_NORMAL) || (parentLoadType == LOAD_RELOAD_CHARSET_CHANGE)))) { // If the parent url, bypassed history or was loaded from // history, pass on the parent's loadType to the new child // frame too, so that the child frame will also // avoid getting into history. loadType = parentLoadType; } else if (parentLoadType == LOAD_ERROR_PAGE) { // If the parent document is an error page, we don't // want to update global/session history. However, // this child frame is not an error page. loadType = LOAD_BYPASS_HISTORY; } else if ((parentLoadType == LOAD_RELOAD_BYPASS_CACHE) || (parentLoadType == LOAD_RELOAD_BYPASS_PROXY) || (parentLoadType == LOAD_RELOAD_BYPASS_PROXY_AND_CACHE)) { // the new frame should inherit the parent's load type so that it also // bypasses the cache and/or proxy loadType = parentLoadType; } } else { // This is a pre-existing subframe. If the load was not originally // initiated by session history, (if (!shEntry) condition succeeded) and // mCurrentURI is not null, it is possible that a parent's onLoadHandler // or even self's onLoadHandler is loading a new page in this child. // Check parent's and self's busy flag and if it is set, we don't want // this onLoadHandler load to get in to session history. uint32_t parentBusy = BUSY_FLAGS_NONE; uint32_t selfBusy = BUSY_FLAGS_NONE; parentDS->GetBusyFlags(&parentBusy); GetBusyFlags(&selfBusy); if (parentBusy & BUSY_FLAGS_BUSY || selfBusy & BUSY_FLAGS_BUSY) { loadType = LOAD_NORMAL_REPLACE; shEntry = nullptr; } } } // parentDS else { // This is the root docshell. If we got here while // executing an onLoad Handler,this load will not go // into session history. bool inOnLoadHandler = false; GetIsExecutingOnLoadHandler(&inOnLoadHandler); if (inOnLoadHandler) { loadType = LOAD_NORMAL_REPLACE; } } } // !shEntry if (shEntry) { #ifdef DEBUG MOZ_LOG(gDocShellLog, LogLevel::Debug, ("nsDocShell[%p]: loading from session history", this)); #endif return LoadHistoryEntry(shEntry, loadType); } // On history navigation via Back/Forward buttons, don't execute // automatic JavaScript redirection such as |location.href = ...| or // |window.open()| // // LOAD_NORMAL: window.open(...) etc. // LOAD_STOP_CONTENT: location.href = ..., location.assign(...) if ((loadType == LOAD_NORMAL || loadType == LOAD_STOP_CONTENT) && ShouldBlockLoadingForBackButton()) { return NS_OK; } // Perform the load... // We need a principalToInherit. // // If principalIsExplicit is not set there are 4 possibilities: // (1) If the system principal or an expanded principal was passed // in and we're a typeContent docshell, inherit the principal // from the current document instead. // (2) In all other cases when the principal passed in is not null, // use that principal. // (3) If the caller has allowed inheriting from the current document, // or if we're being called from system code (eg chrome JS or pure // C++) then inheritPrincipal should be true and InternalLoad will get // a principal from the current document. If none of these things are // true, then // (4) we don't pass a principal into the channel, and a principal will be // created later from the channel's internal data. // // If principalIsExplicit *is* set, there are 4 possibilities // (1) If the system principal or an expanded principal was passed in // and we're a typeContent docshell, return an error. // (2) In all other cases when the principal passed in is not null, // use that principal. // (3) If the caller has allowed inheriting from the current document, // then inheritPrincipal should be true and InternalLoad will get // a principal from the current document. If none of these things are // true, then // (4) we dont' pass a principal into the channel, and a principal will be // created later from the channel's internal data. nsCOMPtr<nsIPrincipal> principalToInherit = triggeringPrincipal; if (principalToInherit && mItemType != typeChrome) { if (nsContentUtils::IsSystemPrincipal(principalToInherit)) { if (principalIsExplicit) { return NS_ERROR_DOM_SECURITY_ERR; } principalToInherit = nullptr; inheritPrincipal = true; } else if (nsContentUtils::IsExpandedPrincipal(principalToInherit)) { if (principalIsExplicit) { return NS_ERROR_DOM_SECURITY_ERR; } // Don't inherit from the current page. Just do the safe thing // and pretend that we were loaded by a nullprincipal. // // We didn't inherit OriginAttributes here as ExpandedPrincipal doesn't // have origin attributes. principalToInherit = nsNullPrincipal::CreateWithInheritedAttributes(this); inheritPrincipal = false; } } if (!principalToInherit && !inheritPrincipal && !principalIsExplicit) { // See if there's system or chrome JS code running inheritPrincipal = nsContentUtils::LegacyIsCallerChromeOrNativeCode(); } if (aLoadFlags & LOAD_FLAGS_DISALLOW_INHERIT_PRINCIPAL) { inheritPrincipal = false; principalToInherit = nsNullPrincipal::CreateWithInheritedAttributes(this); } // If the triggeringPrincipal is not passed explicitly, we first try to create // a principal from the referrer, since the referrer URI reflects the web origin // that triggered the load. If there is no referrer URI, we fall back to using // the SystemPrincipal. It's safe to assume that no provided triggeringPrincipal // and no referrer simulate a load that was triggered by the system. // It's important to note that this block of code needs to appear *after* the block // where we munge the principalToInherit, because otherwise we would never enter // code blocks checking if the principalToInherit is null and we will end up with // a wrong inheritPrincipal flag. if (!triggeringPrincipal) { if (referrer) { nsresult rv = CreatePrincipalFromReferrer(referrer, getter_AddRefs(triggeringPrincipal)); NS_ENSURE_SUCCESS(rv, rv); } else { triggeringPrincipal = nsContentUtils::GetSystemPrincipal(); } } uint32_t flags = 0; if (inheritPrincipal) { flags |= INTERNAL_LOAD_FLAGS_INHERIT_PRINCIPAL; } if (!sendReferrer) { flags |= INTERNAL_LOAD_FLAGS_DONT_SEND_REFERRER; } if (aLoadFlags & LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP) { flags |= INTERNAL_LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP; } if (aLoadFlags & LOAD_FLAGS_FIRST_LOAD) { flags |= INTERNAL_LOAD_FLAGS_FIRST_LOAD; } if (aLoadFlags & LOAD_FLAGS_BYPASS_CLASSIFIER) { flags |= INTERNAL_LOAD_FLAGS_BYPASS_CLASSIFIER; } if (aLoadFlags & LOAD_FLAGS_FORCE_ALLOW_COOKIES) { flags |= INTERNAL_LOAD_FLAGS_FORCE_ALLOW_COOKIES; } if (isSrcdoc) { flags |= INTERNAL_LOAD_FLAGS_IS_SRCDOC; } return InternalLoad(aURI, originalURI, loadReplace, referrer, referrerPolicy, triggeringPrincipal, principalToInherit, flags, target, nullptr, // No type hint NullString(), // No forced download postStream, headersStream, loadType, nullptr, // No SHEntry aFirstParty, srcdoc, sourceDocShell, baseURI, nullptr, // No nsIDocShell nullptr); // No nsIRequest } NS_IMETHODIMP nsDocShell::LoadStream(nsIInputStream* aStream, nsIURI* aURI, const nsACString& aContentType, const nsACString& aContentCharset, nsIDocShellLoadInfo* aLoadInfo) { NS_ENSURE_ARG(aStream); mAllowKeywordFixup = false; // if the caller doesn't pass in a URI we need to create a dummy URI. necko // currently requires a URI in various places during the load. Some consumers // do as well. nsCOMPtr<nsIURI> uri = aURI; if (!uri) { // HACK ALERT nsresult rv = NS_OK; uri = do_CreateInstance(NS_SIMPLEURI_CONTRACTID, &rv); if (NS_FAILED(rv)) { return rv; } // Make sure that the URI spec "looks" like a protocol and path... // For now, just use a bogus protocol called "internal" rv = uri->SetSpec(NS_LITERAL_CSTRING("internal:load-stream")); if (NS_FAILED(rv)) { return rv; } } uint32_t loadType = LOAD_NORMAL; nsCOMPtr<nsIPrincipal> triggeringPrincipal; if (aLoadInfo) { nsDocShellInfoLoadType lt = nsIDocShellLoadInfo::loadNormal; (void)aLoadInfo->GetLoadType(<); // Get the appropriate LoadType from nsIDocShellLoadInfo type loadType = ConvertDocShellLoadInfoToLoadType(lt); aLoadInfo->GetTriggeringPrincipal(getter_AddRefs(triggeringPrincipal)); } NS_ENSURE_SUCCESS(Stop(nsIWebNavigation::STOP_NETWORK), NS_ERROR_FAILURE); mLoadType = loadType; if (!triggeringPrincipal) { triggeringPrincipal = nsContentUtils::GetSystemPrincipal(); } // build up a channel for this stream. nsCOMPtr<nsIChannel> channel; nsresult rv = NS_NewInputStreamChannel(getter_AddRefs(channel), uri, aStream, triggeringPrincipal, nsILoadInfo::SEC_NORMAL, nsIContentPolicy::TYPE_OTHER, aContentType, aContentCharset); NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE); nsCOMPtr<nsIURILoader> uriLoader(do_GetService(NS_URI_LOADER_CONTRACTID)); NS_ENSURE_TRUE(uriLoader, NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(DoChannelLoad(channel, uriLoader, false), NS_ERROR_FAILURE); return NS_OK; } NS_IMETHODIMP nsDocShell::CreateLoadInfo(nsIDocShellLoadInfo** aLoadInfo) { nsDocShellLoadInfo* loadInfo = new nsDocShellLoadInfo(); nsCOMPtr<nsIDocShellLoadInfo> localRef(loadInfo); localRef.forget(aLoadInfo); return NS_OK; } /* * Reset state to a new content model within the current document and the * document viewer. Called by the document before initiating an out of band * document.write(). */ NS_IMETHODIMP nsDocShell::PrepareForNewContentModel() { mEODForCurrentDocument = false; return NS_OK; } NS_IMETHODIMP nsDocShell::FirePageHideNotification(bool aIsUnload) { if (mContentViewer && !mFiredUnloadEvent) { // Keep an explicit reference since calling PageHide could release // mContentViewer nsCOMPtr<nsIContentViewer> contentViewer(mContentViewer); mFiredUnloadEvent = true; if (mTiming) { mTiming->NotifyUnloadEventStart(); } contentViewer->PageHide(aIsUnload); if (mTiming) { mTiming->NotifyUnloadEventEnd(); } AutoTArray<nsCOMPtr<nsIDocShell>, 8> kids; uint32_t n = mChildList.Length(); kids.SetCapacity(n); for (uint32_t i = 0; i < n; i++) { kids.AppendElement(do_QueryInterface(ChildAt(i))); } n = kids.Length(); for (uint32_t i = 0; i < n; ++i) { if (kids[i]) { kids[i]->FirePageHideNotification(aIsUnload); } } // Now make sure our editor, if any, is detached before we go // any farther. DetachEditorFromWindow(); } return NS_OK; } void nsDocShell::MaybeInitTiming() { if (mTiming && !mBlankTiming) { return; } if (mScriptGlobal && mBlankTiming) { nsPIDOMWindowInner* innerWin = mScriptGlobal->AsOuter()->GetCurrentInnerWindow(); if (innerWin && innerWin->GetPerformance()) { mTiming = innerWin->GetPerformance()->GetDOMTiming(); mBlankTiming = false; } } if (!mTiming) { mTiming = new nsDOMNavigationTiming(); } mTiming->NotifyNavigationStart( mIsActive ? nsDOMNavigationTiming::DocShellState::eActive : nsDOMNavigationTiming::DocShellState::eInactive); } // // Bug 13871: Prevent frameset spoofing // // This routine answers: 'Is origin's document from same domain as // target's document?' // // file: uris are considered the same domain for the purpose of // frame navigation regardless of script accessibility (bug 420425) // /* static */ bool nsDocShell::ValidateOrigin(nsIDocShellTreeItem* aOriginTreeItem, nsIDocShellTreeItem* aTargetTreeItem) { // We want to bypass this check for chrome callers, but only if there's // JS on the stack. System callers still need to do it. if (nsContentUtils::GetCurrentJSContext() && nsContentUtils::IsCallerChrome()) { return true; } MOZ_ASSERT(aOriginTreeItem && aTargetTreeItem, "need two docshells"); // Get origin document principal nsCOMPtr<nsIDocument> originDocument = aOriginTreeItem->GetDocument(); NS_ENSURE_TRUE(originDocument, false); // Get target principal nsCOMPtr<nsIDocument> targetDocument = aTargetTreeItem->GetDocument(); NS_ENSURE_TRUE(targetDocument, false); bool equal; nsresult rv = originDocument->NodePrincipal()->Equals( targetDocument->NodePrincipal(), &equal); if (NS_SUCCEEDED(rv) && equal) { return true; } // Not strictly equal, special case if both are file: uris bool originIsFile = false; bool targetIsFile = false; nsCOMPtr<nsIURI> originURI; nsCOMPtr<nsIURI> targetURI; nsCOMPtr<nsIURI> innerOriginURI; nsCOMPtr<nsIURI> innerTargetURI; rv = originDocument->NodePrincipal()->GetURI(getter_AddRefs(originURI)); if (NS_SUCCEEDED(rv) && originURI) { innerOriginURI = NS_GetInnermostURI(originURI); } rv = targetDocument->NodePrincipal()->GetURI(getter_AddRefs(targetURI)); if (NS_SUCCEEDED(rv) && targetURI) { innerTargetURI = NS_GetInnermostURI(targetURI); } return innerOriginURI && innerTargetURI && NS_SUCCEEDED(innerOriginURI->SchemeIs("file", &originIsFile)) && NS_SUCCEEDED(innerTargetURI->SchemeIs("file", &targetIsFile)) && originIsFile && targetIsFile; } nsresult nsDocShell::GetEldestPresContext(nsPresContext** aPresContext) { NS_ENSURE_ARG_POINTER(aPresContext); *aPresContext = nullptr; nsCOMPtr<nsIContentViewer> viewer = mContentViewer; while (viewer) { nsCOMPtr<nsIContentViewer> prevViewer; viewer->GetPreviousViewer(getter_AddRefs(prevViewer)); if (!prevViewer) { return viewer->GetPresContext(aPresContext); } viewer = prevViewer; } return NS_OK; } NS_IMETHODIMP nsDocShell::GetPresContext(nsPresContext** aPresContext) { NS_ENSURE_ARG_POINTER(aPresContext); *aPresContext = nullptr; if (!mContentViewer) { return NS_OK; } return mContentViewer->GetPresContext(aPresContext); } NS_IMETHODIMP_(nsIPresShell*) nsDocShell::GetPresShell() { RefPtr<nsPresContext> presContext; (void)GetPresContext(getter_AddRefs(presContext)); return presContext ? presContext->GetPresShell() : nullptr; } NS_IMETHODIMP nsDocShell::GetEldestPresShell(nsIPresShell** aPresShell) { nsresult rv = NS_OK; NS_ENSURE_ARG_POINTER(aPresShell); *aPresShell = nullptr; RefPtr<nsPresContext> presContext; (void)GetEldestPresContext(getter_AddRefs(presContext)); if (presContext) { NS_IF_ADDREF(*aPresShell = presContext->GetPresShell()); } return rv; } NS_IMETHODIMP nsDocShell::GetContentViewer(nsIContentViewer** aContentViewer) { NS_ENSURE_ARG_POINTER(aContentViewer); *aContentViewer = mContentViewer; NS_IF_ADDREF(*aContentViewer); return NS_OK; } NS_IMETHODIMP nsDocShell::SetChromeEventHandler(nsIDOMEventTarget* aChromeEventHandler) { // Weak reference. Don't addref. nsCOMPtr<EventTarget> handler = do_QueryInterface(aChromeEventHandler); mChromeEventHandler = handler.get(); if (mScriptGlobal) { mScriptGlobal->SetChromeEventHandler(mChromeEventHandler); } return NS_OK; } NS_IMETHODIMP nsDocShell::GetChromeEventHandler(nsIDOMEventTarget** aChromeEventHandler) { NS_ENSURE_ARG_POINTER(aChromeEventHandler); nsCOMPtr<EventTarget> handler = mChromeEventHandler; handler.forget(aChromeEventHandler); return NS_OK; } NS_IMETHODIMP nsDocShell::SetCurrentURI(nsIURI* aURI) { // Note that securityUI will set STATE_IS_INSECURE, even if // the scheme of |aURI| is "https". SetCurrentURI(aURI, nullptr, true, 0); return NS_OK; } bool nsDocShell::SetCurrentURI(nsIURI* aURI, nsIRequest* aRequest, bool aFireOnLocationChange, uint32_t aLocationFlags) { if (gDocShellLeakLog && MOZ_LOG_TEST(gDocShellLeakLog, LogLevel::Debug)) { PR_LogPrint("DOCSHELL %p SetCurrentURI %s\n", this, aURI ? aURI->GetSpecOrDefault().get() : ""); } // We don't want to send a location change when we're displaying an error // page, and we don't want to change our idea of "current URI" either if (mLoadType == LOAD_ERROR_PAGE) { return false; } mCurrentURI = NS_TryToMakeImmutable(aURI); if (!NS_IsAboutBlank(mCurrentURI)) { mHasLoadedNonBlankURI = true; } bool isRoot = false; // Is this the root docshell bool isSubFrame = false; // Is this a subframe navigation? nsCOMPtr<nsIDocShellTreeItem> root; GetSameTypeRootTreeItem(getter_AddRefs(root)); if (root.get() == static_cast<nsIDocShellTreeItem*>(this)) { // This is the root docshell isRoot = true; } if (mLSHE) { mLSHE->GetIsSubFrame(&isSubFrame); } if (!isSubFrame && !isRoot) { /* * We don't want to send OnLocationChange notifications when * a subframe is being loaded for the first time, while * visiting a frameset page */ return false; } if (aFireOnLocationChange) { FireOnLocationChange(this, aRequest, aURI, aLocationFlags); } return !aFireOnLocationChange; } NS_IMETHODIMP nsDocShell::GetCharset(nsACString& aCharset) { aCharset.Truncate(); nsIPresShell* presShell = GetPresShell(); NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE); nsIDocument* doc = presShell->GetDocument(); NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE); aCharset = doc->GetDocumentCharacterSet(); return NS_OK; } NS_IMETHODIMP nsDocShell::GatherCharsetMenuTelemetry() { nsCOMPtr<nsIContentViewer> viewer; GetContentViewer(getter_AddRefs(viewer)); if (!viewer) { return NS_OK; } nsIDocument* doc = viewer->GetDocument(); if (!doc || doc->WillIgnoreCharsetOverride()) { return NS_OK; } Telemetry::Accumulate(Telemetry::CHARSET_OVERRIDE_USED, true); bool isFileURL = false; nsIURI* url = doc->GetOriginalURI(); if (url) { url->SchemeIs("file", &isFileURL); } int32_t charsetSource = doc->GetDocumentCharacterSetSource(); switch (charsetSource) { case kCharsetFromTopLevelDomain: // Unlabeled doc on a domain that we map to a fallback encoding Telemetry::Accumulate(Telemetry::CHARSET_OVERRIDE_SITUATION, 7); break; case kCharsetFromFallback: case kCharsetFromDocTypeDefault: case kCharsetFromCache: case kCharsetFromParentFrame: case kCharsetFromHintPrevDoc: // Changing charset on an unlabeled doc. if (isFileURL) { Telemetry::Accumulate(Telemetry::CHARSET_OVERRIDE_SITUATION, 0); } else { Telemetry::Accumulate(Telemetry::CHARSET_OVERRIDE_SITUATION, 1); } break; case kCharsetFromAutoDetection: // Changing charset on unlabeled doc where chardet fired if (isFileURL) { Telemetry::Accumulate(Telemetry::CHARSET_OVERRIDE_SITUATION, 2); } else { Telemetry::Accumulate(Telemetry::CHARSET_OVERRIDE_SITUATION, 3); } break; case kCharsetFromMetaPrescan: case kCharsetFromMetaTag: case kCharsetFromChannel: // Changing charset on a doc that had a charset label. Telemetry::Accumulate(Telemetry::CHARSET_OVERRIDE_SITUATION, 4); break; case kCharsetFromParentForced: case kCharsetFromUserForced: // Changing charset on a document that already had an override. Telemetry::Accumulate(Telemetry::CHARSET_OVERRIDE_SITUATION, 5); break; case kCharsetFromIrreversibleAutoDetection: case kCharsetFromOtherComponent: case kCharsetFromByteOrderMark: case kCharsetUninitialized: default: // Bug. This isn't supposed to happen. Telemetry::Accumulate(Telemetry::CHARSET_OVERRIDE_SITUATION, 6); break; } return NS_OK; } NS_IMETHODIMP nsDocShell::SetCharset(const nsACString& aCharset) { // set the charset override return SetForcedCharset(aCharset); } NS_IMETHODIMP nsDocShell::SetForcedCharset(const nsACString& aCharset) { if (aCharset.IsEmpty()) { mForcedCharset.Truncate(); return NS_OK; } nsAutoCString encoding; if (!EncodingUtils::FindEncodingForLabel(aCharset, encoding)) { // Reject unknown labels return NS_ERROR_INVALID_ARG; } if (!EncodingUtils::IsAsciiCompatible(encoding)) { // Reject XSS hazards return NS_ERROR_INVALID_ARG; } mForcedCharset = encoding; return NS_OK; } NS_IMETHODIMP nsDocShell::GetForcedCharset(nsACString& aResult) { aResult = mForcedCharset; return NS_OK; } void nsDocShell::SetParentCharset(const nsACString& aCharset, int32_t aCharsetSource, nsIPrincipal* aPrincipal) { mParentCharset = aCharset; mParentCharsetSource = aCharsetSource; mParentCharsetPrincipal = aPrincipal; } void nsDocShell::GetParentCharset(nsACString& aCharset, int32_t* aCharsetSource, nsIPrincipal** aPrincipal) { aCharset = mParentCharset; *aCharsetSource = mParentCharsetSource; NS_IF_ADDREF(*aPrincipal = mParentCharsetPrincipal); } NS_IMETHODIMP nsDocShell::GetChannelIsUnsafe(bool* aUnsafe) { *aUnsafe = false; nsIChannel* channel = GetCurrentDocChannel(); if (!channel) { return NS_OK; } nsCOMPtr<nsIJARChannel> jarChannel = do_QueryInterface(channel); if (!jarChannel) { return NS_OK; } return jarChannel->GetIsUnsafe(aUnsafe); } NS_IMETHODIMP nsDocShell::GetHasMixedActiveContentLoaded(bool* aHasMixedActiveContentLoaded) { nsCOMPtr<nsIDocument> doc(GetDocument()); *aHasMixedActiveContentLoaded = doc && doc->GetHasMixedActiveContentLoaded(); return NS_OK; } NS_IMETHODIMP nsDocShell::GetHasMixedActiveContentBlocked(bool* aHasMixedActiveContentBlocked) { nsCOMPtr<nsIDocument> doc(GetDocument()); *aHasMixedActiveContentBlocked = doc && doc->GetHasMixedActiveContentBlocked(); return NS_OK; } NS_IMETHODIMP nsDocShell::GetHasMixedDisplayContentLoaded(bool* aHasMixedDisplayContentLoaded) { nsCOMPtr<nsIDocument> doc(GetDocument()); *aHasMixedDisplayContentLoaded = doc && doc->GetHasMixedDisplayContentLoaded(); return NS_OK; } NS_IMETHODIMP nsDocShell::GetHasMixedDisplayContentBlocked( bool* aHasMixedDisplayContentBlocked) { nsCOMPtr<nsIDocument> doc(GetDocument()); *aHasMixedDisplayContentBlocked = doc && doc->GetHasMixedDisplayContentBlocked(); return NS_OK; } NS_IMETHODIMP nsDocShell::GetHasTrackingContentBlocked(bool* aHasTrackingContentBlocked) { nsCOMPtr<nsIDocument> doc(GetDocument()); *aHasTrackingContentBlocked = doc && doc->GetHasTrackingContentBlocked(); return NS_OK; } NS_IMETHODIMP nsDocShell::GetHasTrackingContentLoaded(bool* aHasTrackingContentLoaded) { nsCOMPtr<nsIDocument> doc(GetDocument()); *aHasTrackingContentLoaded = doc && doc->GetHasTrackingContentLoaded(); return NS_OK; } NS_IMETHODIMP nsDocShell::GetAllowPlugins(bool* aAllowPlugins) { NS_ENSURE_ARG_POINTER(aAllowPlugins); *aAllowPlugins = mAllowPlugins; if (!mAllowPlugins) { return NS_OK; } bool unsafe; *aAllowPlugins = NS_SUCCEEDED(GetChannelIsUnsafe(&unsafe)) && !unsafe; return NS_OK; } NS_IMETHODIMP nsDocShell::SetAllowPlugins(bool aAllowPlugins) { mAllowPlugins = aAllowPlugins; // XXX should enable or disable a plugin host return NS_OK; } NS_IMETHODIMP nsDocShell::GetAllowJavascript(bool* aAllowJavascript) { NS_ENSURE_ARG_POINTER(aAllowJavascript); *aAllowJavascript = mAllowJavascript; return NS_OK; } NS_IMETHODIMP nsDocShell::SetAllowJavascript(bool aAllowJavascript) { mAllowJavascript = aAllowJavascript; RecomputeCanExecuteScripts(); return NS_OK; } NS_IMETHODIMP nsDocShell::GetUsePrivateBrowsing(bool* aUsePrivateBrowsing) { NS_ENSURE_ARG_POINTER(aUsePrivateBrowsing); AssertOriginAttributesMatchPrivateBrowsing(); *aUsePrivateBrowsing = mPrivateBrowsingId > 0; return NS_OK; } NS_IMETHODIMP nsDocShell::SetUsePrivateBrowsing(bool aUsePrivateBrowsing) { nsContentUtils::ReportToConsoleNonLocalized( NS_LITERAL_STRING("Only internal code is allowed to set the usePrivateBrowsing attribute"), nsIScriptError::warningFlag, NS_LITERAL_CSTRING("Internal API Used"), mContentViewer ? mContentViewer->GetDocument() : nullptr); if (!CanSetOriginAttributes()) { bool changed = aUsePrivateBrowsing != (mPrivateBrowsingId > 0); return changed ? NS_ERROR_FAILURE : NS_OK; } return SetPrivateBrowsing(aUsePrivateBrowsing); } NS_IMETHODIMP nsDocShell::SetPrivateBrowsing(bool aUsePrivateBrowsing) { bool changed = aUsePrivateBrowsing != (mPrivateBrowsingId > 0); if (changed) { mPrivateBrowsingId = aUsePrivateBrowsing ? 1 : 0; if (mItemType != typeChrome) { mOriginAttributes.SyncAttributesWithPrivateBrowsing(aUsePrivateBrowsing); } if (mAffectPrivateSessionLifetime) { if (aUsePrivateBrowsing) { IncreasePrivateDocShellCount(); } else { DecreasePrivateDocShellCount(); } } } nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsILoadContext> shell = do_QueryObject(iter.GetNext()); if (shell) { shell->SetPrivateBrowsing(aUsePrivateBrowsing); } } if (changed) { nsTObserverArray<nsWeakPtr>::ForwardIterator iter(mPrivacyObservers); while (iter.HasMore()) { nsWeakPtr ref = iter.GetNext(); nsCOMPtr<nsIPrivacyTransitionObserver> obs = do_QueryReferent(ref); if (!obs) { mPrivacyObservers.RemoveElement(ref); } else { obs->PrivateModeChanged(aUsePrivateBrowsing); } } } AssertOriginAttributesMatchPrivateBrowsing(); return NS_OK; } NS_IMETHODIMP nsDocShell::GetHasLoadedNonBlankURI(bool* aResult) { NS_ENSURE_ARG_POINTER(aResult); *aResult = mHasLoadedNonBlankURI; return NS_OK; } NS_IMETHODIMP nsDocShell::GetUseRemoteTabs(bool* aUseRemoteTabs) { NS_ENSURE_ARG_POINTER(aUseRemoteTabs); *aUseRemoteTabs = mUseRemoteTabs; return NS_OK; } NS_IMETHODIMP nsDocShell::SetRemoteTabs(bool aUseRemoteTabs) { #ifdef MOZ_CRASHREPORTER if (aUseRemoteTabs) { CrashReporter::AnnotateCrashReport(NS_LITERAL_CSTRING("DOMIPCEnabled"), NS_LITERAL_CSTRING("1")); } #endif mUseRemoteTabs = aUseRemoteTabs; return NS_OK; } NS_IMETHODIMP nsDocShell::SetAffectPrivateSessionLifetime(bool aAffectLifetime) { bool change = aAffectLifetime != mAffectPrivateSessionLifetime; if (change && UsePrivateBrowsing()) { AssertOriginAttributesMatchPrivateBrowsing(); if (aAffectLifetime) { IncreasePrivateDocShellCount(); } else { DecreasePrivateDocShellCount(); } } mAffectPrivateSessionLifetime = aAffectLifetime; nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsIDocShell> shell = do_QueryObject(iter.GetNext()); if (shell) { shell->SetAffectPrivateSessionLifetime(aAffectLifetime); } } return NS_OK; } NS_IMETHODIMP nsDocShell::GetAffectPrivateSessionLifetime(bool* aAffectLifetime) { *aAffectLifetime = mAffectPrivateSessionLifetime; return NS_OK; } NS_IMETHODIMP nsDocShell::AddWeakPrivacyTransitionObserver( nsIPrivacyTransitionObserver* aObserver) { nsWeakPtr weakObs = do_GetWeakReference(aObserver); if (!weakObs) { return NS_ERROR_NOT_AVAILABLE; } return mPrivacyObservers.AppendElement(weakObs) ? NS_OK : NS_ERROR_FAILURE; } NS_IMETHODIMP nsDocShell::AddWeakReflowObserver(nsIReflowObserver* aObserver) { nsWeakPtr weakObs = do_GetWeakReference(aObserver); if (!weakObs) { return NS_ERROR_FAILURE; } return mReflowObservers.AppendElement(weakObs) ? NS_OK : NS_ERROR_FAILURE; } NS_IMETHODIMP nsDocShell::RemoveWeakReflowObserver(nsIReflowObserver* aObserver) { nsWeakPtr obs = do_GetWeakReference(aObserver); return mReflowObservers.RemoveElement(obs) ? NS_OK : NS_ERROR_FAILURE; } NS_IMETHODIMP nsDocShell::NotifyReflowObservers(bool aInterruptible, DOMHighResTimeStamp aStart, DOMHighResTimeStamp aEnd) { nsTObserverArray<nsWeakPtr>::ForwardIterator iter(mReflowObservers); while (iter.HasMore()) { nsWeakPtr ref = iter.GetNext(); nsCOMPtr<nsIReflowObserver> obs = do_QueryReferent(ref); if (!obs) { mReflowObservers.RemoveElement(ref); } else if (aInterruptible) { obs->ReflowInterruptible(aStart, aEnd); } else { obs->Reflow(aStart, aEnd); } } return NS_OK; } NS_IMETHODIMP nsDocShell::GetAllowMetaRedirects(bool* aReturn) { NS_ENSURE_ARG_POINTER(aReturn); *aReturn = mAllowMetaRedirects; if (!mAllowMetaRedirects) { return NS_OK; } bool unsafe; *aReturn = NS_SUCCEEDED(GetChannelIsUnsafe(&unsafe)) && !unsafe; return NS_OK; } NS_IMETHODIMP nsDocShell::SetAllowMetaRedirects(bool aValue) { mAllowMetaRedirects = aValue; return NS_OK; } NS_IMETHODIMP nsDocShell::GetAllowSubframes(bool* aAllowSubframes) { NS_ENSURE_ARG_POINTER(aAllowSubframes); *aAllowSubframes = mAllowSubframes; return NS_OK; } NS_IMETHODIMP nsDocShell::SetAllowSubframes(bool aAllowSubframes) { mAllowSubframes = aAllowSubframes; return NS_OK; } NS_IMETHODIMP nsDocShell::GetAllowImages(bool* aAllowImages) { NS_ENSURE_ARG_POINTER(aAllowImages); *aAllowImages = mAllowImages; return NS_OK; } NS_IMETHODIMP nsDocShell::SetAllowImages(bool aAllowImages) { mAllowImages = aAllowImages; return NS_OK; } NS_IMETHODIMP nsDocShell::GetAllowMedia(bool* aAllowMedia) { *aAllowMedia = mAllowMedia; return NS_OK; } NS_IMETHODIMP nsDocShell::SetAllowMedia(bool aAllowMedia) { mAllowMedia = aAllowMedia; // Mute or unmute audio contexts attached to the inner window. if (mScriptGlobal) { if (nsPIDOMWindowInner* innerWin = mScriptGlobal->AsOuter()->GetCurrentInnerWindow()) { if (aAllowMedia) { innerWin->UnmuteAudioContexts(); } else { innerWin->MuteAudioContexts(); } } } return NS_OK; } NS_IMETHODIMP nsDocShell::GetAllowDNSPrefetch(bool* aAllowDNSPrefetch) { *aAllowDNSPrefetch = mAllowDNSPrefetch; return NS_OK; } NS_IMETHODIMP nsDocShell::SetAllowDNSPrefetch(bool aAllowDNSPrefetch) { mAllowDNSPrefetch = aAllowDNSPrefetch; return NS_OK; } NS_IMETHODIMP nsDocShell::GetAllowWindowControl(bool* aAllowWindowControl) { *aAllowWindowControl = mAllowWindowControl; return NS_OK; } NS_IMETHODIMP nsDocShell::SetAllowWindowControl(bool aAllowWindowControl) { mAllowWindowControl = aAllowWindowControl; return NS_OK; } NS_IMETHODIMP nsDocShell::GetAllowContentRetargeting(bool* aAllowContentRetargeting) { *aAllowContentRetargeting = mAllowContentRetargeting; return NS_OK; } NS_IMETHODIMP nsDocShell::SetAllowContentRetargeting(bool aAllowContentRetargeting) { mAllowContentRetargetingOnChildren = aAllowContentRetargeting; mAllowContentRetargeting = aAllowContentRetargeting; return NS_OK; } NS_IMETHODIMP nsDocShell::GetAllowContentRetargetingOnChildren( bool* aAllowContentRetargetingOnChildren) { *aAllowContentRetargetingOnChildren = mAllowContentRetargetingOnChildren; return NS_OK; } NS_IMETHODIMP nsDocShell::SetAllowContentRetargetingOnChildren( bool aAllowContentRetargetingOnChildren) { mAllowContentRetargetingOnChildren = aAllowContentRetargetingOnChildren; return NS_OK; } NS_IMETHODIMP nsDocShell::GetInheritPrivateBrowsingId(bool* aInheritPrivateBrowsingId) { *aInheritPrivateBrowsingId = mInheritPrivateBrowsingId; return NS_OK; } NS_IMETHODIMP nsDocShell::SetInheritPrivateBrowsingId(bool aInheritPrivateBrowsingId) { mInheritPrivateBrowsingId = aInheritPrivateBrowsingId; return NS_OK; } NS_IMETHODIMP nsDocShell::GetFullscreenAllowed(bool* aFullscreenAllowed) { NS_ENSURE_ARG_POINTER(aFullscreenAllowed); // Browsers and apps have their mFullscreenAllowed retrieved from their // corresponding iframe in their parent upon creation. if (mFullscreenAllowed != CHECK_ATTRIBUTES) { *aFullscreenAllowed = (mFullscreenAllowed == PARENT_ALLOWS); return NS_OK; } // Assume false until we determine otherwise... *aFullscreenAllowed = false; nsCOMPtr<nsPIDOMWindowOuter> win = GetWindow(); if (!win) { return NS_OK; } if (nsCOMPtr<Element> frameElement = win->GetFrameElementInternal()) { if (frameElement->IsXULElement()) { if (frameElement->HasAttr(kNameSpaceID_None, nsGkAtoms::disablefullscreen)) { // Document inside this frame is explicitly disabled. return NS_OK; } } else { // We do not allow document inside any containing element other // than iframe to enter fullscreen. if (frameElement->IsHTMLElement(nsGkAtoms::iframe)) { // If any ancestor iframe does not have allowfullscreen attribute // set, then fullscreen is not allowed. if (!frameElement->HasAttr(kNameSpaceID_None, nsGkAtoms::allowfullscreen) && !frameElement->HasAttr(kNameSpaceID_None, nsGkAtoms::mozallowfullscreen)) { return NS_OK; } } else if (frameElement->IsHTMLElement(nsGkAtoms::embed)) { // Respect allowfullscreen only if this is a rewritten YouTube embed. nsCOMPtr<nsIObjectLoadingContent> objectLoadingContent = do_QueryInterface(frameElement); if (!objectLoadingContent) { return NS_OK; } nsObjectLoadingContent* olc = static_cast<nsObjectLoadingContent*>(objectLoadingContent.get()); if (!olc->IsRewrittenYoutubeEmbed()) { return NS_OK; } // We don't have to check prefixed attributes because Flash does not // support them. if (!frameElement->HasAttr(kNameSpaceID_None, nsGkAtoms::allowfullscreen)) { return NS_OK; } } else { // neither iframe nor embed return NS_OK; } } } // If we have no parent then we're the root docshell; no ancestor of the // original docshell doesn't have a allowfullscreen attribute, so // report fullscreen as allowed. RefPtr<nsDocShell> parent = GetParentDocshell(); if (!parent) { *aFullscreenAllowed = true; return NS_OK; } // Otherwise, we have a parent, continue the checking for // mozFullscreenAllowed in the parent docshell's ancestors. return parent->GetFullscreenAllowed(aFullscreenAllowed); } NS_IMETHODIMP nsDocShell::SetFullscreenAllowed(bool aFullscreenAllowed) { if (!nsIDocShell::GetIsMozBrowserOrApp()) { // Only allow setting of fullscreenAllowed on content/process boundaries. // At non-boundaries the fullscreenAllowed attribute is calculated based on // whether all enclosing frames have the "mozFullscreenAllowed" attribute // set to "true". fullscreenAllowed is set at the process boundaries to // propagate the value of the parent's "mozFullscreenAllowed" attribute // across process boundaries. return NS_ERROR_UNEXPECTED; } mFullscreenAllowed = (aFullscreenAllowed ? PARENT_ALLOWS : PARENT_PROHIBITS); return NS_OK; } ScreenOrientationInternal nsDocShell::OrientationLock() { return mOrientationLock; } void nsDocShell::SetOrientationLock(ScreenOrientationInternal aOrientationLock) { mOrientationLock = aOrientationLock; } NS_IMETHODIMP nsDocShell::GetMayEnableCharacterEncodingMenu( bool* aMayEnableCharacterEncodingMenu) { *aMayEnableCharacterEncodingMenu = false; if (!mContentViewer) { return NS_OK; } nsIDocument* doc = mContentViewer->GetDocument(); if (!doc) { return NS_OK; } if (doc->WillIgnoreCharsetOverride()) { return NS_OK; } *aMayEnableCharacterEncodingMenu = true; return NS_OK; } NS_IMETHODIMP nsDocShell::GetDocShellEnumerator(int32_t aItemType, int32_t aDirection, nsISimpleEnumerator** aResult) { NS_ENSURE_ARG_POINTER(aResult); *aResult = nullptr; RefPtr<nsDocShellEnumerator> docShellEnum; if (aDirection == ENUMERATE_FORWARDS) { docShellEnum = new nsDocShellForwardsEnumerator; } else { docShellEnum = new nsDocShellBackwardsEnumerator; } nsresult rv = docShellEnum->SetEnumDocShellType(aItemType); if (NS_FAILED(rv)) { return rv; } rv = docShellEnum->SetEnumerationRootItem((nsIDocShellTreeItem*)this); if (NS_FAILED(rv)) { return rv; } rv = docShellEnum->First(); if (NS_FAILED(rv)) { return rv; } rv = docShellEnum->QueryInterface(NS_GET_IID(nsISimpleEnumerator), (void**)aResult); return rv; } NS_IMETHODIMP nsDocShell::GetAppType(uint32_t* aAppType) { *aAppType = mAppType; return NS_OK; } NS_IMETHODIMP nsDocShell::SetAppType(uint32_t aAppType) { mAppType = aAppType; return NS_OK; } NS_IMETHODIMP nsDocShell::GetAllowAuth(bool* aAllowAuth) { *aAllowAuth = mAllowAuth; return NS_OK; } NS_IMETHODIMP nsDocShell::SetAllowAuth(bool aAllowAuth) { mAllowAuth = aAllowAuth; return NS_OK; } NS_IMETHODIMP nsDocShell::GetZoom(float* aZoom) { NS_ENSURE_ARG_POINTER(aZoom); *aZoom = 1.0f; return NS_OK; } NS_IMETHODIMP nsDocShell::SetZoom(float aZoom) { return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsDocShell::GetMarginWidth(int32_t* aWidth) { NS_ENSURE_ARG_POINTER(aWidth); *aWidth = mMarginWidth; return NS_OK; } NS_IMETHODIMP nsDocShell::SetMarginWidth(int32_t aWidth) { mMarginWidth = aWidth; return NS_OK; } NS_IMETHODIMP nsDocShell::GetMarginHeight(int32_t* aHeight) { NS_ENSURE_ARG_POINTER(aHeight); *aHeight = mMarginHeight; return NS_OK; } NS_IMETHODIMP nsDocShell::SetMarginHeight(int32_t aHeight) { mMarginHeight = aHeight; return NS_OK; } NS_IMETHODIMP nsDocShell::GetBusyFlags(uint32_t* aBusyFlags) { NS_ENSURE_ARG_POINTER(aBusyFlags); *aBusyFlags = mBusyFlags; return NS_OK; } NS_IMETHODIMP nsDocShell::TabToTreeOwner(bool aForward, bool aForDocumentNavigation, bool* aTookFocus) { NS_ENSURE_ARG_POINTER(aTookFocus); nsCOMPtr<nsIWebBrowserChromeFocus> chromeFocus = do_GetInterface(mTreeOwner); if (chromeFocus) { if (aForward) { *aTookFocus = NS_SUCCEEDED(chromeFocus->FocusNextElement(aForDocumentNavigation)); } else { *aTookFocus = NS_SUCCEEDED(chromeFocus->FocusPrevElement(aForDocumentNavigation)); } } else { *aTookFocus = false; } return NS_OK; } NS_IMETHODIMP nsDocShell::GetSecurityUI(nsISecureBrowserUI** aSecurityUI) { NS_IF_ADDREF(*aSecurityUI = mSecurityUI); return NS_OK; } NS_IMETHODIMP nsDocShell::SetSecurityUI(nsISecureBrowserUI* aSecurityUI) { mSecurityUI = aSecurityUI; mSecurityUI->SetDocShell(this); return NS_OK; } NS_IMETHODIMP nsDocShell::GetUseErrorPages(bool* aUseErrorPages) { *aUseErrorPages = UseErrorPages(); return NS_OK; } NS_IMETHODIMP nsDocShell::SetUseErrorPages(bool aUseErrorPages) { // If mUseErrorPages is set explicitly, stop using sUseErrorPages. if (mObserveErrorPages) { mObserveErrorPages = false; } mUseErrorPages = aUseErrorPages; return NS_OK; } NS_IMETHODIMP nsDocShell::GetPreviousTransIndex(int32_t* aPreviousTransIndex) { *aPreviousTransIndex = mPreviousTransIndex; return NS_OK; } NS_IMETHODIMP nsDocShell::GetLoadedTransIndex(int32_t* aLoadedTransIndex) { *aLoadedTransIndex = mLoadedTransIndex; return NS_OK; } NS_IMETHODIMP nsDocShell::HistoryPurged(int32_t aNumEntries) { // These indices are used for fastback cache eviction, to determine // which session history entries are candidates for content viewer // eviction. We need to adjust by the number of entries that we // just purged from history, so that we look at the right session history // entries during eviction. mPreviousTransIndex = std::max(-1, mPreviousTransIndex - aNumEntries); mLoadedTransIndex = std::max(0, mLoadedTransIndex - aNumEntries); nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsIDocShell> shell = do_QueryObject(iter.GetNext()); if (shell) { shell->HistoryPurged(aNumEntries); } } return NS_OK; } nsresult nsDocShell::HistoryTransactionRemoved(int32_t aIndex) { // These indices are used for fastback cache eviction, to determine // which session history entries are candidates for content viewer // eviction. We need to adjust by the number of entries that we // just purged from history, so that we look at the right session history // entries during eviction. if (aIndex == mPreviousTransIndex) { mPreviousTransIndex = -1; } else if (aIndex < mPreviousTransIndex) { --mPreviousTransIndex; } if (mLoadedTransIndex == aIndex) { mLoadedTransIndex = 0; } else if (aIndex < mLoadedTransIndex) { --mLoadedTransIndex; } nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsIDocShell> shell = do_QueryObject(iter.GetNext()); if (shell) { static_cast<nsDocShell*>(shell.get())->HistoryTransactionRemoved(aIndex); } } return NS_OK; } NS_IMETHODIMP nsDocShell::SetRecordProfileTimelineMarkers(bool aValue) { bool currentValue = nsIDocShell::GetRecordProfileTimelineMarkers(); if (currentValue == aValue) { return NS_OK; } RefPtr<TimelineConsumers> timelines = TimelineConsumers::Get(); if (!timelines) { return NS_OK; } if (aValue) { MOZ_ASSERT(!timelines->HasConsumer(this)); timelines->AddConsumer(this); MOZ_ASSERT(timelines->HasConsumer(this)); UseEntryScriptProfiling(); } else { MOZ_ASSERT(timelines->HasConsumer(this)); timelines->RemoveConsumer(this); MOZ_ASSERT(!timelines->HasConsumer(this)); UnuseEntryScriptProfiling(); } return NS_OK; } NS_IMETHODIMP nsDocShell::GetRecordProfileTimelineMarkers(bool* aValue) { *aValue = !!mObserved; return NS_OK; } nsresult nsDocShell::PopProfileTimelineMarkers( JSContext* aCx, JS::MutableHandle<JS::Value> aOut) { RefPtr<TimelineConsumers> timelines = TimelineConsumers::Get(); if (!timelines) { return NS_OK; } nsTArray<dom::ProfileTimelineMarker> store; SequenceRooter<dom::ProfileTimelineMarker> rooter(aCx, &store); timelines->PopMarkers(this, aCx, store); if (!ToJSValue(aCx, store, aOut)) { JS_ClearPendingException(aCx); return NS_ERROR_UNEXPECTED; } return NS_OK; } nsresult nsDocShell::Now(DOMHighResTimeStamp* aWhen) { bool ignore; *aWhen = (TimeStamp::Now() - TimeStamp::ProcessCreation(ignore)).ToMilliseconds(); return NS_OK; } NS_IMETHODIMP nsDocShell::SetWindowDraggingAllowed(bool aValue) { RefPtr<nsDocShell> parent = GetParentDocshell(); if (!aValue && mItemType == typeChrome && !parent) { // Window dragging is always allowed for top level // chrome docshells. return NS_ERROR_FAILURE; } mWindowDraggingAllowed = aValue; return NS_OK; } NS_IMETHODIMP nsDocShell::GetWindowDraggingAllowed(bool* aValue) { // window dragging regions in CSS (-moz-window-drag:drag) // can be slow. Default behavior is to only allow it for // chrome top level windows. RefPtr<nsDocShell> parent = GetParentDocshell(); if (mItemType == typeChrome && !parent) { // Top level chrome window *aValue = true; } else { *aValue = mWindowDraggingAllowed; } return NS_OK; } nsIDOMStorageManager* nsDocShell::TopSessionStorageManager() { nsresult rv; nsCOMPtr<nsIDocShellTreeItem> topItem; rv = GetSameTypeRootTreeItem(getter_AddRefs(topItem)); if (NS_FAILED(rv)) { return nullptr; } if (!topItem) { return nullptr; } nsDocShell* topDocShell = static_cast<nsDocShell*>(topItem.get()); if (topDocShell != this) { return topDocShell->TopSessionStorageManager(); } if (!mSessionStorageManager) { mSessionStorageManager = do_CreateInstance("@mozilla.org/dom/sessionStorage-manager;1"); } return mSessionStorageManager; } NS_IMETHODIMP nsDocShell::GetSessionStorageForPrincipal(nsIPrincipal* aPrincipal, const nsAString& aDocumentURI, bool aCreate, nsIDOMStorage** aStorage) { nsCOMPtr<nsIDOMStorageManager> manager = TopSessionStorageManager(); if (!manager) { return NS_ERROR_UNEXPECTED; } nsCOMPtr<nsPIDOMWindowOuter> domWin = GetWindow(); AssertOriginAttributesMatchPrivateBrowsing(); if (aCreate) { return manager->CreateStorage(domWin->GetCurrentInnerWindow(), aPrincipal, aDocumentURI, UsePrivateBrowsing(), aStorage); } return manager->GetStorage(domWin->GetCurrentInnerWindow(), aPrincipal, UsePrivateBrowsing(), aStorage); } nsresult nsDocShell::AddSessionStorage(nsIPrincipal* aPrincipal, nsIDOMStorage* aStorage) { RefPtr<DOMStorage> storage = static_cast<DOMStorage*>(aStorage); if (!storage) { return NS_ERROR_UNEXPECTED; } nsIPrincipal* storagePrincipal = storage->GetPrincipal(); if (storagePrincipal != aPrincipal) { NS_ERROR("Wanting to add a sessionStorage for different principal"); return NS_ERROR_DOM_SECURITY_ERR; } nsCOMPtr<nsIDOMStorageManager> manager = TopSessionStorageManager(); if (!manager) { return NS_ERROR_UNEXPECTED; } return manager->CloneStorage(aStorage); } NS_IMETHODIMP nsDocShell::GetCurrentDocumentChannel(nsIChannel** aResult) { NS_IF_ADDREF(*aResult = GetCurrentDocChannel()); return NS_OK; } nsIChannel* nsDocShell::GetCurrentDocChannel() { if (mContentViewer) { nsIDocument* doc = mContentViewer->GetDocument(); if (doc) { return doc->GetChannel(); } } return nullptr; } NS_IMETHODIMP nsDocShell::AddWeakScrollObserver(nsIScrollObserver* aObserver) { nsWeakPtr weakObs = do_GetWeakReference(aObserver); if (!weakObs) { return NS_ERROR_FAILURE; } return mScrollObservers.AppendElement(weakObs) ? NS_OK : NS_ERROR_FAILURE; } NS_IMETHODIMP nsDocShell::RemoveWeakScrollObserver(nsIScrollObserver* aObserver) { nsWeakPtr obs = do_GetWeakReference(aObserver); return mScrollObservers.RemoveElement(obs) ? NS_OK : NS_ERROR_FAILURE; } void nsDocShell::NotifyAsyncPanZoomStarted() { nsTObserverArray<nsWeakPtr>::ForwardIterator iter(mScrollObservers); while (iter.HasMore()) { nsWeakPtr ref = iter.GetNext(); nsCOMPtr<nsIScrollObserver> obs = do_QueryReferent(ref); if (obs) { obs->AsyncPanZoomStarted(); } else { mScrollObservers.RemoveElement(ref); } } } void nsDocShell::NotifyAsyncPanZoomStopped() { nsTObserverArray<nsWeakPtr>::ForwardIterator iter(mScrollObservers); while (iter.HasMore()) { nsWeakPtr ref = iter.GetNext(); nsCOMPtr<nsIScrollObserver> obs = do_QueryReferent(ref); if (obs) { obs->AsyncPanZoomStopped(); } else { mScrollObservers.RemoveElement(ref); } } } NS_IMETHODIMP nsDocShell::NotifyScrollObservers() { nsTObserverArray<nsWeakPtr>::ForwardIterator iter(mScrollObservers); while (iter.HasMore()) { nsWeakPtr ref = iter.GetNext(); nsCOMPtr<nsIScrollObserver> obs = do_QueryReferent(ref); if (obs) { obs->ScrollPositionChanged(); } else { mScrollObservers.RemoveElement(ref); } } return NS_OK; } //***************************************************************************** // nsDocShell::nsIDocShellTreeItem //***************************************************************************** NS_IMETHODIMP nsDocShell::GetName(nsAString& aName) { aName = mName; return NS_OK; } NS_IMETHODIMP nsDocShell::SetName(const nsAString& aName) { mName = aName; return NS_OK; } NS_IMETHODIMP nsDocShell::NameEquals(const nsAString& aName, bool* aResult) { NS_ENSURE_ARG_POINTER(aResult); *aResult = mName.Equals(aName); return NS_OK; } NS_IMETHODIMP nsDocShell::GetCustomUserAgent(nsAString& aCustomUserAgent) { aCustomUserAgent = mCustomUserAgent; return NS_OK; } NS_IMETHODIMP nsDocShell::SetCustomUserAgent(const nsAString& aCustomUserAgent) { mCustomUserAgent = aCustomUserAgent; RefPtr<nsGlobalWindow> win = mScriptGlobal ? mScriptGlobal->GetCurrentInnerWindowInternal() : nullptr; if (win) { ErrorResult ignored; Navigator* navigator = win->GetNavigator(ignored); ignored.SuppressException(); if (navigator) { navigator->ClearUserAgentCache(); } } uint32_t childCount = mChildList.Length(); for (uint32_t i = 0; i < childCount; ++i) { nsCOMPtr<nsIDocShell> childShell = do_QueryInterface(ChildAt(i)); if (childShell) { childShell->SetCustomUserAgent(aCustomUserAgent); } } return NS_OK; } NS_IMETHODIMP nsDocShell::GetTouchEventsOverride(uint32_t* aTouchEventsOverride) { NS_ENSURE_ARG_POINTER(aTouchEventsOverride); *aTouchEventsOverride = mTouchEventsOverride; return NS_OK; } NS_IMETHODIMP nsDocShell::SetTouchEventsOverride(uint32_t aTouchEventsOverride) { if (!(aTouchEventsOverride == nsIDocShell::TOUCHEVENTS_OVERRIDE_NONE || aTouchEventsOverride == nsIDocShell::TOUCHEVENTS_OVERRIDE_ENABLED || aTouchEventsOverride == nsIDocShell::TOUCHEVENTS_OVERRIDE_DISABLED)) { return NS_ERROR_INVALID_ARG; } mTouchEventsOverride = aTouchEventsOverride; uint32_t childCount = mChildList.Length(); for (uint32_t i = 0; i < childCount; ++i) { nsCOMPtr<nsIDocShell> childShell = do_QueryInterface(ChildAt(i)); if (childShell) { childShell->SetTouchEventsOverride(aTouchEventsOverride); } } return NS_OK; } /* virtual */ int32_t nsDocShell::ItemType() { return mItemType; } NS_IMETHODIMP nsDocShell::GetItemType(int32_t* aItemType) { NS_ENSURE_ARG_POINTER(aItemType); *aItemType = ItemType(); return NS_OK; } NS_IMETHODIMP nsDocShell::SetItemType(int32_t aItemType) { NS_ENSURE_ARG((aItemType == typeChrome) || (typeContent == aItemType)); // Only allow setting the type on root docshells. Those would be the ones // that have the docloader service as mParent or have no mParent at all. nsCOMPtr<nsIDocumentLoader> docLoaderService = do_GetService(NS_DOCUMENTLOADER_SERVICE_CONTRACTID); NS_ENSURE_TRUE(docLoaderService, NS_ERROR_UNEXPECTED); NS_ENSURE_STATE(!mParent || mParent == docLoaderService); mItemType = aItemType; // disable auth prompting for anything but content mAllowAuth = mItemType == typeContent; RefPtr<nsPresContext> presContext = nullptr; GetPresContext(getter_AddRefs(presContext)); if (presContext) { presContext->UpdateIsChrome(); } return NS_OK; } NS_IMETHODIMP nsDocShell::GetParent(nsIDocShellTreeItem** aParent) { if (!mParent) { *aParent = nullptr; } else { CallQueryInterface(mParent, aParent); } // Note that in the case when the parent is not an nsIDocShellTreeItem we // don't want to throw; we just want to return null. return NS_OK; } already_AddRefed<nsDocShell> nsDocShell::GetParentDocshell() { nsCOMPtr<nsIDocShell> docshell = do_QueryInterface(GetAsSupports(mParent)); return docshell.forget().downcast<nsDocShell>(); } void nsDocShell::RecomputeCanExecuteScripts() { bool old = mCanExecuteScripts; RefPtr<nsDocShell> parent = GetParentDocshell(); // If we have no tree owner, that means that we've been detached from the // docshell tree (this is distinct from having no parent dochshell, which // is the case for root docshells). It would be nice to simply disallow // script in detached docshells, but bug 986542 demonstrates that this // behavior breaks at least one website. // // So instead, we use our previous value, unless mAllowJavascript has been // explicitly set to false. if (!mTreeOwner) { mCanExecuteScripts = mCanExecuteScripts && mAllowJavascript; // If scripting has been explicitly disabled on our docshell, we're done. } else if (!mAllowJavascript) { mCanExecuteScripts = false; // If we have a parent, inherit. } else if (parent) { mCanExecuteScripts = parent->mCanExecuteScripts; // Otherwise, we're the root of the tree, and we haven't explicitly disabled // script. Allow. } else { mCanExecuteScripts = true; } // Inform our active DOM window. // // This will pass the outer, which will be in the scope of the active inner. if (mScriptGlobal && mScriptGlobal->GetGlobalJSObject()) { xpc::Scriptability& scriptability = xpc::Scriptability::Get(mScriptGlobal->GetGlobalJSObject()); scriptability.SetDocShellAllowsScript(mCanExecuteScripts); } // If our value has changed, our children might be affected. Recompute their // value as well. if (old != mCanExecuteScripts) { nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { static_cast<nsDocShell*>(iter.GetNext())->RecomputeCanExecuteScripts(); } } } nsresult nsDocShell::SetDocLoaderParent(nsDocLoader* aParent) { bool wasFrame = IsFrame(); #ifdef DEBUG bool wasPrivate = UsePrivateBrowsing(); #endif nsresult rv = nsDocLoader::SetDocLoaderParent(aParent); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr<nsISupportsPriority> priorityGroup = do_QueryInterface(mLoadGroup); if (wasFrame != IsFrame() && priorityGroup) { priorityGroup->AdjustPriority(wasFrame ? -1 : 1); } // Curse ambiguous nsISupports inheritance! nsISupports* parent = GetAsSupports(aParent); // If parent is another docshell, we inherit all their flags for // allowing plugins, scripting etc. bool value; nsString customUserAgent; nsCOMPtr<nsIDocShell> parentAsDocShell(do_QueryInterface(parent)); if (parentAsDocShell) { if (mAllowPlugins && NS_SUCCEEDED(parentAsDocShell->GetAllowPlugins(&value))) { SetAllowPlugins(value); } if (mAllowJavascript && NS_SUCCEEDED(parentAsDocShell->GetAllowJavascript(&value))) { SetAllowJavascript(value); } if (mAllowMetaRedirects && NS_SUCCEEDED(parentAsDocShell->GetAllowMetaRedirects(&value))) { SetAllowMetaRedirects(value); } if (mAllowSubframes && NS_SUCCEEDED(parentAsDocShell->GetAllowSubframes(&value))) { SetAllowSubframes(value); } if (mAllowImages && NS_SUCCEEDED(parentAsDocShell->GetAllowImages(&value))) { SetAllowImages(value); } SetAllowMedia(parentAsDocShell->GetAllowMedia() && mAllowMedia); if (mAllowWindowControl && NS_SUCCEEDED(parentAsDocShell->GetAllowWindowControl(&value))) { SetAllowWindowControl(value); } SetAllowContentRetargeting(mAllowContentRetargeting && parentAsDocShell->GetAllowContentRetargetingOnChildren()); if (parentAsDocShell->GetIsPrerendered()) { SetIsPrerendered(); } if (NS_SUCCEEDED(parentAsDocShell->GetIsActive(&value))) { // a prerendered docshell is not active yet SetIsActive(value && !mIsPrerendered); } if (NS_SUCCEEDED(parentAsDocShell->GetCustomUserAgent(customUserAgent)) && !customUserAgent.IsEmpty()) { SetCustomUserAgent(customUserAgent); } if (NS_FAILED(parentAsDocShell->GetAllowDNSPrefetch(&value))) { value = false; } SetAllowDNSPrefetch(mAllowDNSPrefetch && value); if (mInheritPrivateBrowsingId) { value = parentAsDocShell->GetAffectPrivateSessionLifetime(); SetAffectPrivateSessionLifetime(value); } uint32_t flags; if (NS_SUCCEEDED(parentAsDocShell->GetDefaultLoadFlags(&flags))) { SetDefaultLoadFlags(flags); } uint32_t touchEventsOverride; if (NS_SUCCEEDED(parentAsDocShell->GetTouchEventsOverride(&touchEventsOverride))) { SetTouchEventsOverride(touchEventsOverride); } } nsCOMPtr<nsILoadContext> parentAsLoadContext(do_QueryInterface(parent)); if (parentAsLoadContext && mInheritPrivateBrowsingId && NS_SUCCEEDED(parentAsLoadContext->GetUsePrivateBrowsing(&value))) { SetPrivateBrowsing(value); } nsCOMPtr<nsIURIContentListener> parentURIListener(do_GetInterface(parent)); if (parentURIListener) { mContentListener->SetParentContentListener(parentURIListener); } // Our parent has changed. Recompute scriptability. RecomputeCanExecuteScripts(); NS_ASSERTION(mInheritPrivateBrowsingId || wasPrivate == UsePrivateBrowsing(), "Private browsing state changed while inheritance was disabled"); return NS_OK; } NS_IMETHODIMP nsDocShell::GetSameTypeParent(nsIDocShellTreeItem** aParent) { NS_ENSURE_ARG_POINTER(aParent); *aParent = nullptr; if (nsIDocShell::GetIsMozBrowserOrApp()) { return NS_OK; } nsCOMPtr<nsIDocShellTreeItem> parent = do_QueryInterface(GetAsSupports(mParent)); if (!parent) { return NS_OK; } if (parent->ItemType() == mItemType) { parent.swap(*aParent); } return NS_OK; } NS_IMETHODIMP nsDocShell::GetSameTypeParentIgnoreBrowserAndAppBoundaries(nsIDocShell** aParent) { NS_ENSURE_ARG_POINTER(aParent); *aParent = nullptr; nsCOMPtr<nsIDocShellTreeItem> parent = do_QueryInterface(GetAsSupports(mParent)); if (!parent) { return NS_OK; } if (parent->ItemType() == mItemType) { nsCOMPtr<nsIDocShell> parentDS = do_QueryInterface(parent); parentDS.forget(aParent); } return NS_OK; } NS_IMETHODIMP nsDocShell::GetRootTreeItem(nsIDocShellTreeItem** aRootTreeItem) { NS_ENSURE_ARG_POINTER(aRootTreeItem); RefPtr<nsDocShell> root = this; RefPtr<nsDocShell> parent = root->GetParentDocshell(); while (parent) { root = parent; parent = root->GetParentDocshell(); } root.forget(aRootTreeItem); return NS_OK; } NS_IMETHODIMP nsDocShell::GetSameTypeRootTreeItem(nsIDocShellTreeItem** aRootTreeItem) { NS_ENSURE_ARG_POINTER(aRootTreeItem); *aRootTreeItem = static_cast<nsIDocShellTreeItem*>(this); nsCOMPtr<nsIDocShellTreeItem> parent; NS_ENSURE_SUCCESS(GetSameTypeParent(getter_AddRefs(parent)), NS_ERROR_FAILURE); while (parent) { *aRootTreeItem = parent; NS_ENSURE_SUCCESS( (*aRootTreeItem)->GetSameTypeParent(getter_AddRefs(parent)), NS_ERROR_FAILURE); } NS_ADDREF(*aRootTreeItem); return NS_OK; } NS_IMETHODIMP nsDocShell::GetSameTypeRootTreeItemIgnoreBrowserAndAppBoundaries(nsIDocShell ** aRootTreeItem) { NS_ENSURE_ARG_POINTER(aRootTreeItem); *aRootTreeItem = static_cast<nsIDocShell *>(this); nsCOMPtr<nsIDocShell> parent; NS_ENSURE_SUCCESS(GetSameTypeParentIgnoreBrowserAndAppBoundaries(getter_AddRefs(parent)), NS_ERROR_FAILURE); while (parent) { *aRootTreeItem = parent; NS_ENSURE_SUCCESS((*aRootTreeItem)-> GetSameTypeParentIgnoreBrowserAndAppBoundaries(getter_AddRefs(parent)), NS_ERROR_FAILURE); } NS_ADDREF(*aRootTreeItem); return NS_OK; } /* static */ bool nsDocShell::CanAccessItem(nsIDocShellTreeItem* aTargetItem, nsIDocShellTreeItem* aAccessingItem, bool aConsiderOpener) { NS_PRECONDITION(aTargetItem, "Must have target item!"); if (!gValidateOrigin || !aAccessingItem) { // Good to go return true; } // XXXbz should we care if aAccessingItem or the document therein is // chrome? Should those get extra privileges? // For historical context, see: // // Bug 13871: Prevent frameset spoofing // Bug 103638: Targets with same name in different windows open in wrong // window with javascript // Bug 408052: Adopt "ancestor" frame navigation policy // Now do a security check. // // Disallow navigation if the two frames are not part of the same app, or if // they have different is-in-browser-element states. // // Allow navigation if // 1) aAccessingItem can script aTargetItem or one of its ancestors in // the frame hierarchy or // 2) aTargetItem is a top-level frame and aAccessingItem is its descendant // 3) aTargetItem is a top-level frame and aAccessingItem can target // its opener per rule (1) or (2). if (aTargetItem == aAccessingItem) { // A frame is allowed to navigate itself. return true; } nsCOMPtr<nsIDocShell> targetDS = do_QueryInterface(aTargetItem); nsCOMPtr<nsIDocShell> accessingDS = do_QueryInterface(aAccessingItem); if (!targetDS || !accessingDS) { // We must be able to convert both to nsIDocShell. return false; } if (targetDS->GetIsInIsolatedMozBrowserElement() != accessingDS->GetIsInIsolatedMozBrowserElement() || targetDS->GetAppId() != accessingDS->GetAppId()) { return false; } nsCOMPtr<nsIDocShellTreeItem> accessingRoot; aAccessingItem->GetSameTypeRootTreeItem(getter_AddRefs(accessingRoot)); nsCOMPtr<nsIDocShell> accessingRootDS = do_QueryInterface(accessingRoot); nsCOMPtr<nsIDocShellTreeItem> targetRoot; aTargetItem->GetSameTypeRootTreeItem(getter_AddRefs(targetRoot)); nsCOMPtr<nsIDocShell> targetRootDS = do_QueryInterface(targetRoot); DocShellOriginAttributes targetOA = static_cast<nsDocShell*>(targetDS.get())->GetOriginAttributes(); DocShellOriginAttributes accessingOA = static_cast<nsDocShell*>(accessingDS.get())->GetOriginAttributes(); // When the first party isolation is on, the top-level docShell may not have // the firstPartyDomain in its originAttributes, but its document will have // it. So we get the firstPartyDomain from the nodePrincipal of the document // before we compare the originAttributes. if (OriginAttributes::IsFirstPartyEnabled()) { if (accessingDS == accessingRootDS && aAccessingItem->ItemType() == nsIDocShellTreeItem::typeContent && !accessingDS->GetIsMozBrowserOrApp()) { nsCOMPtr<nsIDocument> accessingDoc = aAccessingItem->GetDocument(); if (accessingDoc) { nsCOMPtr<nsIPrincipal> accessingPrincipal = accessingDoc->NodePrincipal(); accessingOA.mFirstPartyDomain = BasePrincipal::Cast(accessingPrincipal)->OriginAttributesRef().mFirstPartyDomain; } } if (targetDS == targetRootDS && aTargetItem->ItemType() == nsIDocShellTreeItem::typeContent && !targetDS->GetIsMozBrowserOrApp()) { nsCOMPtr<nsIDocument> targetDoc = aAccessingItem->GetDocument(); if (targetDoc) { nsCOMPtr<nsIPrincipal> targetPrincipal = targetDoc->NodePrincipal(); targetOA.mFirstPartyDomain = BasePrincipal::Cast(targetPrincipal)->OriginAttributesRef().mFirstPartyDomain; } } } if (targetOA != accessingOA) { return false; } // A private document can't access a non-private one, and vice versa. if (static_cast<nsDocShell*>(targetDS.get())->UsePrivateBrowsing() != static_cast<nsDocShell*>(accessingDS.get())->UsePrivateBrowsing()) { return false; } if (aTargetItem == accessingRoot) { // A frame can navigate its root. return true; } // Check if aAccessingItem can navigate one of aTargetItem's ancestors. nsCOMPtr<nsIDocShellTreeItem> target = aTargetItem; do { if (ValidateOrigin(aAccessingItem, target)) { return true; } nsCOMPtr<nsIDocShellTreeItem> parent; target->GetSameTypeParent(getter_AddRefs(parent)); parent.swap(target); } while (target); if (aTargetItem != targetRoot) { // target is a subframe, not in accessor's frame hierarchy, and all its // ancestors have origins different from that of the accessor. Don't // allow access. return false; } if (!aConsiderOpener) { // All done here return false; } nsCOMPtr<nsPIDOMWindowOuter> targetWindow = aTargetItem->GetWindow(); if (!targetWindow) { NS_ERROR("This should not happen, really"); return false; } nsCOMPtr<mozIDOMWindowProxy> targetOpener = targetWindow->GetOpener(); nsCOMPtr<nsIWebNavigation> openerWebNav(do_GetInterface(targetOpener)); nsCOMPtr<nsIDocShellTreeItem> openerItem(do_QueryInterface(openerWebNav)); if (!openerItem) { return false; } return CanAccessItem(openerItem, aAccessingItem, false); } static bool ItemIsActive(nsIDocShellTreeItem* aItem) { if (nsCOMPtr<nsPIDOMWindowOuter> window = aItem->GetWindow()) { auto* win = nsGlobalWindow::Cast(window); MOZ_ASSERT(win->IsOuterWindow()); if (!win->GetClosedOuter()) { return true; } } return false; } NS_IMETHODIMP nsDocShell::FindItemWithName(const nsAString& aName, nsISupports* aRequestor, nsIDocShellTreeItem* aOriginalRequestor, nsIDocShellTreeItem** aResult) { NS_ENSURE_ARG_POINTER(aResult); // If we don't find one, we return NS_OK and a null result *aResult = nullptr; if (aName.IsEmpty()) { return NS_OK; } if (aRequestor) { // If aRequestor is not null we don't need to check special names, so // just hand straight off to the search by actual name function. return DoFindItemWithName(aName, aRequestor, aOriginalRequestor, aResult); } else { // This is the entry point into the target-finding algorithm. Check // for special names. This should only be done once, hence the check // for a null aRequestor. nsCOMPtr<nsIDocShellTreeItem> foundItem; if (aName.LowerCaseEqualsLiteral("_self")) { foundItem = this; } else if (aName.LowerCaseEqualsLiteral("_blank")) { // Just return null. Caller must handle creating a new window with // a blank name himself. return NS_OK; } else if (aName.LowerCaseEqualsLiteral("_parent")) { GetSameTypeParent(getter_AddRefs(foundItem)); if (!foundItem) { foundItem = this; } } else if (aName.LowerCaseEqualsLiteral("_top")) { GetSameTypeRootTreeItem(getter_AddRefs(foundItem)); NS_ASSERTION(foundItem, "Must have this; worst case it's us!"); } else { // Do the search for item by an actual name. DoFindItemWithName(aName, aRequestor, aOriginalRequestor, getter_AddRefs(foundItem)); } if (foundItem && !CanAccessItem(foundItem, aOriginalRequestor)) { foundItem = nullptr; } // DoFindItemWithName only returns active items and we don't check if // the item is active for the special cases. if (foundItem) { foundItem.swap(*aResult); } return NS_OK; } } void nsDocShell::AssertOriginAttributesMatchPrivateBrowsing() { // Chrome docshells must not have a private browsing OriginAttribute // Content docshells must maintain the equality: // mOriginAttributes.mPrivateBrowsingId == mPrivateBrowsingId if (mItemType == typeChrome) { MOZ_DIAGNOSTIC_ASSERT(mOriginAttributes.mPrivateBrowsingId == 0); } else { MOZ_DIAGNOSTIC_ASSERT(mOriginAttributes.mPrivateBrowsingId == mPrivateBrowsingId); } } nsresult nsDocShell::DoFindItemWithName(const nsAString& aName, nsISupports* aRequestor, nsIDocShellTreeItem* aOriginalRequestor, nsIDocShellTreeItem** aResult) { // First we check our name. if (mName.Equals(aName) && ItemIsActive(this) && CanAccessItem(this, aOriginalRequestor)) { NS_ADDREF(*aResult = this); return NS_OK; } // This QI may fail, but the places where we want to compare, comparing // against nullptr serves the same purpose. nsCOMPtr<nsIDocShellTreeItem> reqAsTreeItem(do_QueryInterface(aRequestor)); // Second we check our children making sure not to ask a child if // it is the aRequestor. #ifdef DEBUG nsresult rv = #endif FindChildWithName(aName, true, true, reqAsTreeItem, aOriginalRequestor, aResult); NS_ASSERTION(NS_SUCCEEDED(rv), "FindChildWithName should not be failing here."); if (*aResult) { return NS_OK; } // Third if we have a parent and it isn't the requestor then we // should ask it to do the search. If it is the requestor we // should just stop here and let the parent do the rest. If we // don't have a parent, then we should ask the // docShellTreeOwner to do the search. nsCOMPtr<nsIDocShellTreeItem> parentAsTreeItem = do_QueryInterface(GetAsSupports(mParent)); if (parentAsTreeItem) { if (parentAsTreeItem == reqAsTreeItem) { return NS_OK; } // If we have a same-type parent, respecting browser and app boundaries. // NOTE: Could use GetSameTypeParent if the issues described in bug 1310344 are fixed. if (!GetIsMozBrowserOrApp() && parentAsTreeItem->ItemType() == mItemType) { return parentAsTreeItem->FindItemWithName( aName, static_cast<nsIDocShellTreeItem*>(this), aOriginalRequestor, aResult); } } // If we have a null parent or the parent is not of the same type, we need to // give up on finding it in our tree, and start looking in our TabGroup. nsCOMPtr<nsPIDOMWindowOuter> window = GetWindow(); if (window) { RefPtr<mozilla::dom::TabGroup> tabGroup = window->TabGroup(); // We don't want to make the request to our TabGroup if they are the ones // which made a request to us. if (tabGroup != aRequestor) { tabGroup->FindItemWithName(aName, this, aOriginalRequestor, aResult); } } return NS_OK; } bool nsDocShell::IsSandboxedFrom(nsIDocShell* aTargetDocShell) { // If no target then not sandboxed. if (!aTargetDocShell) { return false; } // We cannot be sandboxed from ourselves. if (aTargetDocShell == this) { return false; } // Default the sandbox flags to our flags, so that if we can't retrieve the // active document, we will still enforce our own. uint32_t sandboxFlags = mSandboxFlags; if (mContentViewer) { nsCOMPtr<nsIDocument> doc = mContentViewer->GetDocument(); if (doc) { sandboxFlags = doc->GetSandboxFlags(); } } // If no flags, we are not sandboxed at all. if (!sandboxFlags) { return false; } // If aTargetDocShell has an ancestor, it is not top level. nsCOMPtr<nsIDocShellTreeItem> ancestorOfTarget; aTargetDocShell->GetSameTypeParent(getter_AddRefs(ancestorOfTarget)); if (ancestorOfTarget) { do { // We are not sandboxed if we are an ancestor of target. if (ancestorOfTarget == this) { return false; } nsCOMPtr<nsIDocShellTreeItem> tempTreeItem; ancestorOfTarget->GetSameTypeParent(getter_AddRefs(tempTreeItem)); tempTreeItem.swap(ancestorOfTarget); } while (ancestorOfTarget); // Otherwise, we are sandboxed from aTargetDocShell. return true; } // aTargetDocShell is top level, are we the "one permitted sandboxed // navigator", i.e. did we open aTargetDocShell? nsCOMPtr<nsIDocShell> permittedNavigator; aTargetDocShell->GetOnePermittedSandboxedNavigator( getter_AddRefs(permittedNavigator)); if (permittedNavigator == this) { return false; } // If SANDBOXED_TOPLEVEL_NAVIGATION flag is not on, we are not sandboxed // from our top. if (!(sandboxFlags & SANDBOXED_TOPLEVEL_NAVIGATION)) { nsCOMPtr<nsIDocShellTreeItem> rootTreeItem; GetSameTypeRootTreeItem(getter_AddRefs(rootTreeItem)); if (SameCOMIdentity(aTargetDocShell, rootTreeItem)) { return false; } } // Otherwise, we are sandboxed from aTargetDocShell. return true; } NS_IMETHODIMP nsDocShell::GetTreeOwner(nsIDocShellTreeOwner** aTreeOwner) { NS_ENSURE_ARG_POINTER(aTreeOwner); *aTreeOwner = mTreeOwner; NS_IF_ADDREF(*aTreeOwner); return NS_OK; } #ifdef DEBUG_DOCSHELL_FOCUS static void PrintDocTree(nsIDocShellTreeItem* aParentNode, int aLevel) { for (int32_t i = 0; i < aLevel; i++) { printf(" "); } int32_t childWebshellCount; aParentNode->GetChildCount(&childWebshellCount); nsCOMPtr<nsIDocShell> parentAsDocShell(do_QueryInterface(aParentNode)); int32_t type = aParentNode->ItemType(); nsCOMPtr<nsIPresShell> presShell = parentAsDocShell->GetPresShell(); RefPtr<nsPresContext> presContext; parentAsDocShell->GetPresContext(getter_AddRefs(presContext)); nsIDocument* doc = presShell->GetDocument(); nsCOMPtr<nsPIDOMWindowOuter> domwin(doc->GetWindow()); nsCOMPtr<nsIWidget> widget; nsViewManager* vm = presShell->GetViewManager(); if (vm) { vm->GetWidget(getter_AddRefs(widget)); } dom::Element* rootElement = doc->GetRootElement(); printf("DS %p Ty %s Doc %p DW %p EM %p CN %p\n", (void*)parentAsDocShell.get(), type == nsIDocShellTreeItem::typeChrome ? "Chr" : "Con", (void*)doc, (void*)domwin.get(), (void*)presContext->EventStateManager(), (void*)rootElement); if (childWebshellCount > 0) { for (int32_t i = 0; i < childWebshellCount; i++) { nsCOMPtr<nsIDocShellTreeItem> child; aParentNode->GetChildAt(i, getter_AddRefs(child)); PrintDocTree(child, aLevel + 1); } } } static void PrintDocTree(nsIDocShellTreeItem* aParentNode) { NS_ASSERTION(aParentNode, "Pointer is null!"); nsCOMPtr<nsIDocShellTreeItem> parentItem; aParentNode->GetParent(getter_AddRefs(parentItem)); while (parentItem) { nsCOMPtr<nsIDocShellTreeItem> tmp; parentItem->GetParent(getter_AddRefs(tmp)); if (!tmp) { break; } parentItem = tmp; } if (!parentItem) { parentItem = aParentNode; } PrintDocTree(parentItem, 0); } #endif NS_IMETHODIMP nsDocShell::SetTreeOwner(nsIDocShellTreeOwner* aTreeOwner) { #ifdef DEBUG_DOCSHELL_FOCUS nsCOMPtr<nsIDocShellTreeItem> item(do_QueryInterface(aTreeOwner)); if (item) { PrintDocTree(item); } #endif // Don't automatically set the progress based on the tree owner for frames if (!IsFrame()) { nsCOMPtr<nsIWebProgress> webProgress = do_QueryInterface(GetAsSupports(this)); if (webProgress) { nsCOMPtr<nsIWebProgressListener> oldListener = do_QueryInterface(mTreeOwner); nsCOMPtr<nsIWebProgressListener> newListener = do_QueryInterface(aTreeOwner); if (oldListener) { webProgress->RemoveProgressListener(oldListener); } if (newListener) { webProgress->AddProgressListener(newListener, nsIWebProgress::NOTIFY_ALL); } } } mTreeOwner = aTreeOwner; // Weak reference per API nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsIDocShellTreeItem> child = do_QueryObject(iter.GetNext()); NS_ENSURE_TRUE(child, NS_ERROR_FAILURE); if (child->ItemType() == mItemType) { child->SetTreeOwner(aTreeOwner); } } // Our tree owner has changed. Recompute scriptability. // // Note that this is near-redundant with the recomputation in // SetDocLoaderParent(), but not so for the root DocShell, where the call to // SetTreeOwner() happens after the initial AddDocLoaderAsChildOfRoot(), // and we never set another parent. Given that this is neither expensive nor // performance-critical, let's be safe and unconditionally recompute this // state whenever dependent state changes. RecomputeCanExecuteScripts(); return NS_OK; } NS_IMETHODIMP nsDocShell::SetChildOffset(uint32_t aChildOffset) { mChildOffset = aChildOffset; return NS_OK; } NS_IMETHODIMP nsDocShell::GetHistoryID(uint64_t* aID) { *aID = mHistoryID; return NS_OK; } NS_IMETHODIMP nsDocShell::GetIsInUnload(bool* aIsInUnload) { *aIsInUnload = mFiredUnloadEvent; return NS_OK; } NS_IMETHODIMP nsDocShell::GetChildCount(int32_t* aChildCount) { NS_ENSURE_ARG_POINTER(aChildCount); *aChildCount = mChildList.Length(); return NS_OK; } NS_IMETHODIMP nsDocShell::AddChild(nsIDocShellTreeItem* aChild) { NS_ENSURE_ARG_POINTER(aChild); RefPtr<nsDocLoader> childAsDocLoader = GetAsDocLoader(aChild); NS_ENSURE_TRUE(childAsDocLoader, NS_ERROR_UNEXPECTED); // Make sure we're not creating a loop in the docshell tree nsDocLoader* ancestor = this; do { if (childAsDocLoader == ancestor) { return NS_ERROR_ILLEGAL_VALUE; } ancestor = ancestor->GetParent(); } while (ancestor); // Make sure to remove the child from its current parent. nsDocLoader* childsParent = childAsDocLoader->GetParent(); if (childsParent) { nsresult rv = childsParent->RemoveChildLoader(childAsDocLoader); NS_ENSURE_SUCCESS(rv, rv); } // Make sure to clear the treeowner in case this child is a different type // from us. aChild->SetTreeOwner(nullptr); nsresult res = AddChildLoader(childAsDocLoader); NS_ENSURE_SUCCESS(res, res); NS_ASSERTION(!mChildList.IsEmpty(), "child list must not be empty after a successful add"); nsCOMPtr<nsIDocShell> childDocShell = do_QueryInterface(aChild); bool dynamic = false; childDocShell->GetCreatedDynamically(&dynamic); if (!dynamic) { nsCOMPtr<nsISHEntry> currentSH; bool oshe = false; GetCurrentSHEntry(getter_AddRefs(currentSH), &oshe); if (currentSH) { currentSH->HasDynamicallyAddedChild(&dynamic); } } childDocShell->SetChildOffset(dynamic ? -1 : mChildList.Length() - 1); /* Set the child's global history if the parent has one */ if (mUseGlobalHistory) { childDocShell->SetUseGlobalHistory(true); } if (aChild->ItemType() != mItemType) { return NS_OK; } aChild->SetTreeOwner(mTreeOwner); nsCOMPtr<nsIDocShell> childAsDocShell(do_QueryInterface(aChild)); if (!childAsDocShell) { return NS_OK; } // charset, style-disabling, and zoom will be inherited in SetupNewViewer() // Now take this document's charset and set the child's parentCharset field // to it. We'll later use that field, in the loading process, for the // charset choosing algorithm. // If we fail, at any point, we just return NS_OK. // This code has some performance impact. But this will be reduced when // the current charset will finally be stored as an Atom, avoiding the // alias resolution extra look-up. // we are NOT going to propagate the charset is this Chrome's docshell if (mItemType == nsIDocShellTreeItem::typeChrome) { return NS_OK; } // get the parent's current charset if (!mContentViewer) { return NS_OK; } nsIDocument* doc = mContentViewer->GetDocument(); if (!doc) { return NS_OK; } bool isWyciwyg = false; if (mCurrentURI) { // Check if the url is wyciwyg mCurrentURI->SchemeIs("wyciwyg", &isWyciwyg); } if (!isWyciwyg) { // If this docshell is loaded from a wyciwyg: URI, don't // advertise our charset since it does not in any way reflect // the actual source charset, which is what we're trying to // expose here. const nsACString& parentCS = doc->GetDocumentCharacterSet(); int32_t charsetSource = doc->GetDocumentCharacterSetSource(); // set the child's parentCharset childAsDocShell->SetParentCharset(parentCS, charsetSource, doc->NodePrincipal()); } // printf("### 1 >>> Adding child. Parent CS = %s. ItemType = %d.\n", // NS_LossyConvertUTF16toASCII(parentCS).get(), mItemType); return NS_OK; } NS_IMETHODIMP nsDocShell::RemoveChild(nsIDocShellTreeItem* aChild) { NS_ENSURE_ARG_POINTER(aChild); RefPtr<nsDocLoader> childAsDocLoader = GetAsDocLoader(aChild); NS_ENSURE_TRUE(childAsDocLoader, NS_ERROR_UNEXPECTED); nsresult rv = RemoveChildLoader(childAsDocLoader); NS_ENSURE_SUCCESS(rv, rv); aChild->SetTreeOwner(nullptr); return nsDocLoader::AddDocLoaderAsChildOfRoot(childAsDocLoader); } NS_IMETHODIMP nsDocShell::GetChildAt(int32_t aIndex, nsIDocShellTreeItem** aChild) { NS_ENSURE_ARG_POINTER(aChild); #ifdef DEBUG if (aIndex < 0) { NS_WARNING("Negative index passed to GetChildAt"); } else if (static_cast<uint32_t>(aIndex) >= mChildList.Length()) { NS_WARNING("Too large an index passed to GetChildAt"); } #endif nsIDocumentLoader* child = ChildAt(aIndex); NS_ENSURE_TRUE(child, NS_ERROR_UNEXPECTED); return CallQueryInterface(child, aChild); } NS_IMETHODIMP nsDocShell::FindChildWithName(const nsAString& aName, bool aRecurse, bool aSameType, nsIDocShellTreeItem* aRequestor, nsIDocShellTreeItem* aOriginalRequestor, nsIDocShellTreeItem** aResult) { NS_ENSURE_ARG_POINTER(aResult); // if we don't find one, we return NS_OK and a null result *aResult = nullptr; if (aName.IsEmpty()) { return NS_OK; } nsXPIDLString childName; nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsIDocShellTreeItem> child = do_QueryObject(iter.GetNext()); NS_ENSURE_TRUE(child, NS_ERROR_FAILURE); int32_t childType = child->ItemType(); if (aSameType && (childType != mItemType)) { continue; } bool childNameEquals = false; child->NameEquals(aName, &childNameEquals); if (childNameEquals && ItemIsActive(child) && CanAccessItem(child, aOriginalRequestor)) { child.swap(*aResult); break; } // Only ask it to check children if it is same type if (childType != mItemType) { continue; } // Only ask the child if it isn't the requestor if (aRecurse && (aRequestor != child)) { // See if child contains the shell with the given name #ifdef DEBUG nsresult rv = #endif child->FindChildWithName(aName, true, aSameType, static_cast<nsIDocShellTreeItem*>(this), aOriginalRequestor, aResult); NS_ASSERTION(NS_SUCCEEDED(rv), "FindChildWithName should not fail here"); if (*aResult) { // found it return NS_OK; } } } return NS_OK; } NS_IMETHODIMP nsDocShell::GetChildSHEntry(int32_t aChildOffset, nsISHEntry** aResult) { nsresult rv = NS_OK; NS_ENSURE_ARG_POINTER(aResult); *aResult = nullptr; // A nsISHEntry for a child is *only* available when the parent is in // the progress of loading a document too... if (mLSHE) { /* Before looking for the subframe's url, check * the expiration status of the parent. If the parent * has expired from cache, then subframes will not be * loaded from history in certain situations. */ bool parentExpired = false; mLSHE->GetExpirationStatus(&parentExpired); /* Get the parent's Load Type so that it can be set on the child too. * By default give a loadHistory value */ uint32_t loadType = nsIDocShellLoadInfo::loadHistory; mLSHE->GetLoadType(&loadType); // If the user did a shift-reload on this frameset page, // we don't want to load the subframes from history. if (loadType == nsIDocShellLoadInfo::loadReloadBypassCache || loadType == nsIDocShellLoadInfo::loadReloadBypassProxy || loadType == nsIDocShellLoadInfo::loadReloadBypassProxyAndCache || loadType == nsIDocShellLoadInfo::loadRefresh) { return rv; } /* If the user pressed reload and the parent frame has expired * from cache, we do not want to load the child frame from history. */ if (parentExpired && (loadType == nsIDocShellLoadInfo::loadReloadNormal)) { // The parent has expired. Return null. *aResult = nullptr; return rv; } nsCOMPtr<nsISHContainer> container(do_QueryInterface(mLSHE)); if (container) { // Get the child subframe from session history. rv = container->GetChildAt(aChildOffset, aResult); if (*aResult) { (*aResult)->SetLoadType(loadType); } } } return rv; } NS_IMETHODIMP nsDocShell::AddChildSHEntry(nsISHEntry* aCloneRef, nsISHEntry* aNewEntry, int32_t aChildOffset, uint32_t aLoadType, bool aCloneChildren) { nsresult rv = NS_OK; if (mLSHE && aLoadType != LOAD_PUSHSTATE) { /* You get here if you are currently building a * hierarchy ie.,you just visited a frameset page */ nsCOMPtr<nsISHContainer> container(do_QueryInterface(mLSHE, &rv)); if (container) { if (NS_FAILED(container->ReplaceChild(aNewEntry))) { rv = container->AddChild(aNewEntry, aChildOffset); } } } else if (!aCloneRef) { /* This is an initial load in some subframe. Just append it if we can */ nsCOMPtr<nsISHContainer> container(do_QueryInterface(mOSHE, &rv)); if (container) { rv = container->AddChild(aNewEntry, aChildOffset); } } else { rv = AddChildSHEntryInternal(aCloneRef, aNewEntry, aChildOffset, aLoadType, aCloneChildren); } return rv; } nsresult nsDocShell::AddChildSHEntryInternal(nsISHEntry* aCloneRef, nsISHEntry* aNewEntry, int32_t aChildOffset, uint32_t aLoadType, bool aCloneChildren) { nsresult rv = NS_OK; if (mSessionHistory) { /* You are currently in the rootDocShell. * You will get here when a subframe has a new url * to load and you have walked up the tree all the * way to the top to clone the current SHEntry hierarchy * and replace the subframe where a new url was loaded with * a new entry. */ int32_t index = -1; nsCOMPtr<nsISHEntry> currentHE; mSessionHistory->GetIndex(&index); if (index < 0) { return NS_ERROR_FAILURE; } rv = mSessionHistory->GetEntryAtIndex(index, false, getter_AddRefs(currentHE)); NS_ENSURE_TRUE(currentHE, NS_ERROR_FAILURE); nsCOMPtr<nsISHEntry> currentEntry(do_QueryInterface(currentHE)); if (currentEntry) { uint32_t cloneID = 0; nsCOMPtr<nsISHEntry> nextEntry; aCloneRef->GetID(&cloneID); rv = CloneAndReplace(currentEntry, this, cloneID, aNewEntry, aCloneChildren, getter_AddRefs(nextEntry)); if (NS_SUCCEEDED(rv)) { nsCOMPtr<nsISHistoryInternal> shPrivate = do_QueryInterface(mSessionHistory); NS_ENSURE_TRUE(shPrivate, NS_ERROR_FAILURE); rv = shPrivate->AddEntry(nextEntry, true); } } } else { /* Just pass this along */ nsCOMPtr<nsIDocShell> parent = do_QueryInterface(GetAsSupports(mParent), &rv); if (parent) { rv = static_cast<nsDocShell*>(parent.get())->AddChildSHEntryInternal( aCloneRef, aNewEntry, aChildOffset, aLoadType, aCloneChildren); } } return rv; } nsresult nsDocShell::AddChildSHEntryToParent(nsISHEntry* aNewEntry, int32_t aChildOffset, bool aCloneChildren) { /* You will get here when you are in a subframe and * a new url has been loaded on you. * The mOSHE in this subframe will be the previous url's * mOSHE. This mOSHE will be used as the identification * for this subframe in the CloneAndReplace function. */ // In this case, we will end up calling AddEntry, which increases the // current index by 1 nsCOMPtr<nsISHistory> rootSH; GetRootSessionHistory(getter_AddRefs(rootSH)); if (rootSH) { rootSH->GetIndex(&mPreviousTransIndex); } nsresult rv; nsCOMPtr<nsIDocShell> parent = do_QueryInterface(GetAsSupports(mParent), &rv); if (parent) { rv = parent->AddChildSHEntry(mOSHE, aNewEntry, aChildOffset, mLoadType, aCloneChildren); } if (rootSH) { rootSH->GetIndex(&mLoadedTransIndex); #ifdef DEBUG_PAGE_CACHE printf("Previous index: %d, Loaded index: %d\n\n", mPreviousTransIndex, mLoadedTransIndex); #endif } return rv; } NS_IMETHODIMP nsDocShell::SetUseGlobalHistory(bool aUseGlobalHistory) { nsresult rv; mUseGlobalHistory = aUseGlobalHistory; if (!aUseGlobalHistory) { mGlobalHistory = nullptr; return NS_OK; } // No need to initialize mGlobalHistory if IHistory is available. nsCOMPtr<IHistory> history = services::GetHistoryService(); if (history) { return NS_OK; } if (mGlobalHistory) { return NS_OK; } mGlobalHistory = do_GetService(NS_GLOBALHISTORY2_CONTRACTID, &rv); return rv; } NS_IMETHODIMP nsDocShell::GetUseGlobalHistory(bool* aUseGlobalHistory) { *aUseGlobalHistory = mUseGlobalHistory; return NS_OK; } NS_IMETHODIMP nsDocShell::RemoveFromSessionHistory() { nsCOMPtr<nsISHistoryInternal> internalHistory; nsCOMPtr<nsISHistory> sessionHistory; nsCOMPtr<nsIDocShellTreeItem> root; GetSameTypeRootTreeItem(getter_AddRefs(root)); if (root) { nsCOMPtr<nsIWebNavigation> rootAsWebnav = do_QueryInterface(root); if (rootAsWebnav) { rootAsWebnav->GetSessionHistory(getter_AddRefs(sessionHistory)); internalHistory = do_QueryInterface(sessionHistory); } } if (!internalHistory) { return NS_OK; } int32_t index = 0; sessionHistory->GetIndex(&index); AutoTArray<uint64_t, 16> ids({mHistoryID}); internalHistory->RemoveEntries(ids, index); return NS_OK; } NS_IMETHODIMP nsDocShell::SetCreatedDynamically(bool aDynamic) { mDynamicallyCreated = aDynamic; return NS_OK; } NS_IMETHODIMP nsDocShell::GetCreatedDynamically(bool* aDynamic) { *aDynamic = mDynamicallyCreated; return NS_OK; } NS_IMETHODIMP nsDocShell::GetCurrentSHEntry(nsISHEntry** aEntry, bool* aOSHE) { *aOSHE = false; *aEntry = nullptr; if (mLSHE) { NS_ADDREF(*aEntry = mLSHE); } else if (mOSHE) { NS_ADDREF(*aEntry = mOSHE); *aOSHE = true; } return NS_OK; } nsIScriptGlobalObject* nsDocShell::GetScriptGlobalObject() { NS_ENSURE_SUCCESS(EnsureScriptEnvironment(), nullptr); return mScriptGlobal; } nsIDocument* nsDocShell::GetDocument() { NS_ENSURE_SUCCESS(EnsureContentViewer(), nullptr); return mContentViewer->GetDocument(); } nsPIDOMWindowOuter* nsDocShell::GetWindow() { if (NS_FAILED(EnsureScriptEnvironment())) { return nullptr; } return mScriptGlobal->AsOuter(); } NS_IMETHODIMP nsDocShell::SetDeviceSizeIsPageSize(bool aValue) { if (mDeviceSizeIsPageSize != aValue) { mDeviceSizeIsPageSize = aValue; RefPtr<nsPresContext> presContext; GetPresContext(getter_AddRefs(presContext)); if (presContext) { presContext->MediaFeatureValuesChanged(nsRestyleHint(0)); } } return NS_OK; } NS_IMETHODIMP nsDocShell::GetDeviceSizeIsPageSize(bool* aValue) { *aValue = mDeviceSizeIsPageSize; return NS_OK; } void nsDocShell::ClearFrameHistory(nsISHEntry* aEntry) { nsCOMPtr<nsISHContainer> shcontainer = do_QueryInterface(aEntry); nsCOMPtr<nsISHistory> rootSH; GetRootSessionHistory(getter_AddRefs(rootSH)); nsCOMPtr<nsISHistoryInternal> history = do_QueryInterface(rootSH); if (!history || !shcontainer) { return; } int32_t count = 0; shcontainer->GetChildCount(&count); AutoTArray<uint64_t, 16> ids; for (int32_t i = 0; i < count; ++i) { nsCOMPtr<nsISHEntry> child; shcontainer->GetChildAt(i, getter_AddRefs(child)); if (child) { uint64_t id = 0; child->GetDocshellID(&id); ids.AppendElement(id); } } int32_t index = 0; rootSH->GetIndex(&index); history->RemoveEntries(ids, index); } //------------------------------------- //-- Helper Method for Print discovery //------------------------------------- bool nsDocShell::IsPrintingOrPP(bool aDisplayErrorDialog) { if (mIsPrintingOrPP && aDisplayErrorDialog) { DisplayLoadError(NS_ERROR_DOCUMENT_IS_PRINTMODE, nullptr, nullptr, nullptr); } return mIsPrintingOrPP; } bool nsDocShell::IsNavigationAllowed(bool aDisplayPrintErrorDialog, bool aCheckIfUnloadFired) { bool isAllowed = !IsPrintingOrPP(aDisplayPrintErrorDialog) && (!aCheckIfUnloadFired || !mFiredUnloadEvent); if (!isAllowed) { return false; } if (!mContentViewer) { return true; } bool firingBeforeUnload; mContentViewer->GetBeforeUnloadFiring(&firingBeforeUnload); return !firingBeforeUnload; } //***************************************************************************** // nsDocShell::nsIWebNavigation //***************************************************************************** NS_IMETHODIMP nsDocShell::GetCanGoBack(bool* aCanGoBack) { if (!IsNavigationAllowed(false)) { *aCanGoBack = false; return NS_OK; // JS may not handle returning of an error code } nsresult rv; nsCOMPtr<nsISHistory> rootSH; rv = GetRootSessionHistory(getter_AddRefs(rootSH)); nsCOMPtr<nsIWebNavigation> webnav(do_QueryInterface(rootSH)); NS_ENSURE_TRUE(webnav, NS_ERROR_FAILURE); rv = webnav->GetCanGoBack(aCanGoBack); return rv; } NS_IMETHODIMP nsDocShell::GetCanGoForward(bool* aCanGoForward) { if (!IsNavigationAllowed(false)) { *aCanGoForward = false; return NS_OK; // JS may not handle returning of an error code } nsresult rv; nsCOMPtr<nsISHistory> rootSH; rv = GetRootSessionHistory(getter_AddRefs(rootSH)); nsCOMPtr<nsIWebNavigation> webnav(do_QueryInterface(rootSH)); NS_ENSURE_TRUE(webnav, NS_ERROR_FAILURE); rv = webnav->GetCanGoForward(aCanGoForward); return rv; } NS_IMETHODIMP nsDocShell::GoBack() { if (!IsNavigationAllowed()) { return NS_OK; // JS may not handle returning of an error code } nsresult rv; nsCOMPtr<nsISHistory> rootSH; rv = GetRootSessionHistory(getter_AddRefs(rootSH)); nsCOMPtr<nsIWebNavigation> webnav(do_QueryInterface(rootSH)); NS_ENSURE_TRUE(webnav, NS_ERROR_FAILURE); rv = webnav->GoBack(); return rv; } NS_IMETHODIMP nsDocShell::GoForward() { if (!IsNavigationAllowed()) { return NS_OK; // JS may not handle returning of an error code } nsresult rv; nsCOMPtr<nsISHistory> rootSH; rv = GetRootSessionHistory(getter_AddRefs(rootSH)); nsCOMPtr<nsIWebNavigation> webnav(do_QueryInterface(rootSH)); NS_ENSURE_TRUE(webnav, NS_ERROR_FAILURE); rv = webnav->GoForward(); return rv; } NS_IMETHODIMP nsDocShell::GotoIndex(int32_t aIndex) { if (!IsNavigationAllowed()) { return NS_OK; // JS may not handle returning of an error code } nsresult rv; nsCOMPtr<nsISHistory> rootSH; rv = GetRootSessionHistory(getter_AddRefs(rootSH)); nsCOMPtr<nsIWebNavigation> webnav(do_QueryInterface(rootSH)); NS_ENSURE_TRUE(webnav, NS_ERROR_FAILURE); rv = webnav->GotoIndex(aIndex); return rv; } NS_IMETHODIMP nsDocShell::LoadURI(const char16_t* aURI, uint32_t aLoadFlags, nsIURI* aReferringURI, nsIInputStream* aPostStream, nsIInputStream* aHeaderStream) { return LoadURIWithOptions(aURI, aLoadFlags, aReferringURI, mozilla::net::RP_Default, aPostStream, aHeaderStream, nullptr); } NS_IMETHODIMP nsDocShell::LoadURIWithOptions(const char16_t* aURI, uint32_t aLoadFlags, nsIURI* aReferringURI, uint32_t aReferrerPolicy, nsIInputStream* aPostStream, nsIInputStream* aHeaderStream, nsIURI* aBaseURI) { NS_ASSERTION((aLoadFlags & 0xf) == 0, "Unexpected flags"); if (!IsNavigationAllowed()) { return NS_OK; // JS may not handle returning of an error code } nsCOMPtr<nsIURI> uri; nsCOMPtr<nsIInputStream> postStream(aPostStream); nsresult rv = NS_OK; // Create a URI from our string; if that succeeds, we want to // change aLoadFlags to not include the ALLOW_THIRD_PARTY_FIXUP // flag. NS_ConvertUTF16toUTF8 uriString(aURI); // Cleanup the empty spaces that might be on each end. uriString.Trim(" "); // Eliminate embedded newlines, which single-line text fields now allow: uriString.StripChars("\r\n"); NS_ENSURE_TRUE(!uriString.IsEmpty(), NS_ERROR_FAILURE); rv = NS_NewURI(getter_AddRefs(uri), uriString); if (uri) { aLoadFlags &= ~LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP; } nsCOMPtr<nsIURIFixupInfo> fixupInfo; if (sURIFixup) { // Call the fixup object. This will clobber the rv from NS_NewURI // above, but that's fine with us. Note that we need to do this even // if NS_NewURI returned a URI, because fixup handles nested URIs, etc // (things like view-source:mozilla.org for example). uint32_t fixupFlags = 0; if (aLoadFlags & LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP) { fixupFlags |= nsIURIFixup::FIXUP_FLAG_ALLOW_KEYWORD_LOOKUP; } if (aLoadFlags & LOAD_FLAGS_FIXUP_SCHEME_TYPOS) { fixupFlags |= nsIURIFixup::FIXUP_FLAG_FIX_SCHEME_TYPOS; } nsCOMPtr<nsIInputStream> fixupStream; rv = sURIFixup->GetFixupURIInfo(uriString, fixupFlags, getter_AddRefs(fixupStream), getter_AddRefs(fixupInfo)); if (NS_SUCCEEDED(rv)) { fixupInfo->GetPreferredURI(getter_AddRefs(uri)); fixupInfo->SetConsumer(GetAsSupports(this)); } if (fixupStream) { // GetFixupURIInfo only returns a post data stream if it succeeded // and changed the URI, in which case we should override the // passed-in post data. postStream = fixupStream; } if (aLoadFlags & LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP) { nsCOMPtr<nsIObserverService> serv = services::GetObserverService(); if (serv) { serv->NotifyObservers(fixupInfo, "keyword-uri-fixup", aURI); } } } // else no fixup service so just use the URI we created and see // what happens if (NS_ERROR_MALFORMED_URI == rv) { if (DisplayLoadError(rv, uri, aURI, nullptr) && (aLoadFlags & LOAD_FLAGS_ERROR_LOAD_CHANGES_RV) != 0) { return NS_ERROR_LOAD_SHOWED_ERRORPAGE; } } if (NS_FAILED(rv) || !uri) { return NS_ERROR_FAILURE; } PopupControlState popupState; if (aLoadFlags & LOAD_FLAGS_ALLOW_POPUPS) { popupState = openAllowed; aLoadFlags &= ~LOAD_FLAGS_ALLOW_POPUPS; } else { popupState = openOverridden; } nsAutoPopupStatePusher statePusher(popupState); // Don't pass certain flags that aren't needed and end up confusing // ConvertLoadTypeToDocShellLoadInfo. We do need to ensure that they are // passed to LoadURI though, since it uses them. uint32_t extraFlags = (aLoadFlags & EXTRA_LOAD_FLAGS); aLoadFlags &= ~EXTRA_LOAD_FLAGS; nsCOMPtr<nsIDocShellLoadInfo> loadInfo; rv = CreateLoadInfo(getter_AddRefs(loadInfo)); if (NS_FAILED(rv)) { return rv; } /* * If the user "Disables Protection on This Page", we have to make sure to * remember the users decision when opening links in child tabs [Bug 906190] */ uint32_t loadType; if (aLoadFlags & LOAD_FLAGS_ALLOW_MIXED_CONTENT) { loadType = MAKE_LOAD_TYPE(LOAD_NORMAL_ALLOW_MIXED_CONTENT, aLoadFlags); } else { loadType = MAKE_LOAD_TYPE(LOAD_NORMAL, aLoadFlags); } loadInfo->SetLoadType(ConvertLoadTypeToDocShellLoadInfo(loadType)); loadInfo->SetPostDataStream(postStream); loadInfo->SetReferrer(aReferringURI); loadInfo->SetReferrerPolicy(aReferrerPolicy); loadInfo->SetHeadersStream(aHeaderStream); loadInfo->SetBaseURI(aBaseURI); if (fixupInfo) { nsAutoString searchProvider, keyword; fixupInfo->GetKeywordProviderName(searchProvider); fixupInfo->GetKeywordAsSent(keyword); MaybeNotifyKeywordSearchLoading(searchProvider, keyword); } rv = LoadURI(uri, loadInfo, extraFlags, true); // Save URI string in case it's needed later when // sending to search engine service in EndPageLoad() mOriginalUriString = uriString; return rv; } NS_IMETHODIMP nsDocShell::DisplayLoadError(nsresult aError, nsIURI* aURI, const char16_t* aURL, nsIChannel* aFailedChannel, bool* aDisplayedErrorPage) { *aDisplayedErrorPage = false; // Get prompt and string bundle servcies nsCOMPtr<nsIPrompt> prompter; nsCOMPtr<nsIStringBundle> stringBundle; GetPromptAndStringBundle(getter_AddRefs(prompter), getter_AddRefs(stringBundle)); NS_ENSURE_TRUE(stringBundle, NS_ERROR_FAILURE); NS_ENSURE_TRUE(prompter, NS_ERROR_FAILURE); nsAutoString error; const uint32_t kMaxFormatStrArgs = 3; nsAutoString formatStrs[kMaxFormatStrArgs]; uint32_t formatStrCount = 0; bool addHostPort = false; nsresult rv = NS_OK; nsAutoString messageStr; nsAutoCString cssClass; nsAutoCString errorPage; errorPage.AssignLiteral("neterror"); // Turn the error code into a human readable error message. if (NS_ERROR_UNKNOWN_PROTOCOL == aError) { NS_ENSURE_ARG_POINTER(aURI); // Extract the schemes into a comma delimited list. nsAutoCString scheme; aURI->GetScheme(scheme); CopyASCIItoUTF16(scheme, formatStrs[0]); nsCOMPtr<nsINestedURI> nestedURI = do_QueryInterface(aURI); while (nestedURI) { nsCOMPtr<nsIURI> tempURI; nsresult rv2; rv2 = nestedURI->GetInnerURI(getter_AddRefs(tempURI)); if (NS_SUCCEEDED(rv2) && tempURI) { tempURI->GetScheme(scheme); formatStrs[0].AppendLiteral(", "); AppendASCIItoUTF16(scheme, formatStrs[0]); } nestedURI = do_QueryInterface(tempURI); } formatStrCount = 1; error.AssignLiteral("unknownProtocolFound"); } else if (NS_ERROR_FILE_NOT_FOUND == aError) { NS_ENSURE_ARG_POINTER(aURI); error.AssignLiteral("fileNotFound"); } else if (NS_ERROR_FILE_ACCESS_DENIED == aError) { NS_ENSURE_ARG_POINTER(aURI); error.AssignLiteral("fileAccessDenied"); } else if (NS_ERROR_UNKNOWN_HOST == aError) { NS_ENSURE_ARG_POINTER(aURI); // Get the host nsAutoCString host; nsCOMPtr<nsIURI> innermostURI = NS_GetInnermostURI(aURI); innermostURI->GetHost(host); CopyUTF8toUTF16(host, formatStrs[0]); formatStrCount = 1; error.AssignLiteral("dnsNotFound"); } else if (NS_ERROR_CONNECTION_REFUSED == aError) { NS_ENSURE_ARG_POINTER(aURI); addHostPort = true; error.AssignLiteral("connectionFailure"); } else if (NS_ERROR_NET_INTERRUPT == aError) { NS_ENSURE_ARG_POINTER(aURI); addHostPort = true; error.AssignLiteral("netInterrupt"); } else if (NS_ERROR_NET_TIMEOUT == aError) { NS_ENSURE_ARG_POINTER(aURI); // Get the host nsAutoCString host; aURI->GetHost(host); CopyUTF8toUTF16(host, formatStrs[0]); formatStrCount = 1; error.AssignLiteral("netTimeout"); } else if (NS_ERROR_CSP_FRAME_ANCESTOR_VIOLATION == aError || NS_ERROR_CSP_FORM_ACTION_VIOLATION == aError) { // CSP error cssClass.AssignLiteral("neterror"); error.AssignLiteral("cspBlocked"); } else if (NS_ERROR_GET_MODULE(aError) == NS_ERROR_MODULE_SECURITY) { nsCOMPtr<nsINSSErrorsService> nsserr = do_GetService(NS_NSS_ERRORS_SERVICE_CONTRACTID); uint32_t errorClass; if (!nsserr || NS_FAILED(nsserr->GetErrorClass(aError, &errorClass))) { errorClass = nsINSSErrorsService::ERROR_CLASS_SSL_PROTOCOL; } nsCOMPtr<nsISupports> securityInfo; nsCOMPtr<nsITransportSecurityInfo> tsi; if (aFailedChannel) { aFailedChannel->GetSecurityInfo(getter_AddRefs(securityInfo)); } tsi = do_QueryInterface(securityInfo); if (tsi) { uint32_t securityState; tsi->GetSecurityState(&securityState); if (securityState & nsIWebProgressListener::STATE_USES_SSL_3) { error.AssignLiteral("sslv3Used"); addHostPort = true; } else if (securityState & nsIWebProgressListener::STATE_USES_WEAK_CRYPTO) { error.AssignLiteral("weakCryptoUsed"); addHostPort = true; } else { // Usually we should have aFailedChannel and get a detailed message tsi->GetErrorMessage(getter_Copies(messageStr)); } } else { // No channel, let's obtain the generic error message if (nsserr) { nsserr->GetErrorMessage(aError, messageStr); } } if (!messageStr.IsEmpty()) { if (errorClass == nsINSSErrorsService::ERROR_CLASS_BAD_CERT) { error.AssignLiteral("nssBadCert"); // If this is an HTTP Strict Transport Security host or a pinned host // and the certificate is bad, don't allow overrides (RFC 6797 section // 12.1, HPKP draft spec section 2.6). uint32_t flags = UsePrivateBrowsing() ? nsISocketProvider::NO_PERMANENT_STORAGE : 0; bool isStsHost = false; bool isPinnedHost = false; if (XRE_IsParentProcess()) { nsCOMPtr<nsISiteSecurityService> sss = do_GetService(NS_SSSERVICE_CONTRACTID, &rv); NS_ENSURE_SUCCESS(rv, rv); rv = sss->IsSecureURI(nsISiteSecurityService::HEADER_HSTS, aURI, flags, nullptr, &isStsHost); NS_ENSURE_SUCCESS(rv, rv); rv = sss->IsSecureURI(nsISiteSecurityService::HEADER_HPKP, aURI, flags, nullptr, &isPinnedHost); NS_ENSURE_SUCCESS(rv, rv); } else { mozilla::dom::ContentChild* cc = mozilla::dom::ContentChild::GetSingleton(); mozilla::ipc::URIParams uri; SerializeURI(aURI, uri); cc->SendIsSecureURI(nsISiteSecurityService::HEADER_HSTS, uri, flags, &isStsHost); cc->SendIsSecureURI(nsISiteSecurityService::HEADER_HPKP, uri, flags, &isPinnedHost); } if (Preferences::GetBool( "browser.xul.error_pages.expert_bad_cert", false)) { cssClass.AssignLiteral("expertBadCert"); } // HSTS/pinning takes precedence over the expert bad cert pref. We // never want to show the "Add Exception" button for these sites. // In the future we should differentiate between an HSTS host and a // pinned host and display a more informative message to the user. if (isStsHost || isPinnedHost) { cssClass.AssignLiteral("badStsCert"); } uint32_t bucketId; if (isStsHost) { // measuring STS separately allows us to measure click through // rates easily bucketId = nsISecurityUITelemetry::WARNING_BAD_CERT_TOP_STS; } else { bucketId = nsISecurityUITelemetry::WARNING_BAD_CERT_TOP; } // See if an alternate cert error page is registered nsAdoptingCString alternateErrorPage = Preferences::GetCString("security.alternate_certificate_error_page"); if (alternateErrorPage) { errorPage.Assign(alternateErrorPage); } if (!IsFrame() && errorPage.EqualsIgnoreCase("certerror")) { Telemetry::Accumulate(mozilla::Telemetry::SECURITY_UI, bucketId); } } else { error.AssignLiteral("nssFailure2"); } } } else if (NS_ERROR_PHISHING_URI == aError || NS_ERROR_MALWARE_URI == aError || NS_ERROR_UNWANTED_URI == aError) { nsAutoCString host; aURI->GetHost(host); CopyUTF8toUTF16(host, formatStrs[0]); formatStrCount = 1; // Malware and phishing detectors may want to use an alternate error // page, but if the pref's not set, we'll fall back on the standard page nsAdoptingCString alternateErrorPage = Preferences::GetCString("urlclassifier.alternate_error_page"); if (alternateErrorPage) { errorPage.Assign(alternateErrorPage); } uint32_t bucketId; bool sendTelemetry = false; if (NS_ERROR_PHISHING_URI == aError) { sendTelemetry = true; error.AssignLiteral("deceptiveBlocked"); bucketId = IsFrame() ? nsISecurityUITelemetry::WARNING_PHISHING_PAGE_FRAME : nsISecurityUITelemetry::WARNING_PHISHING_PAGE_TOP; } else if (NS_ERROR_MALWARE_URI == aError) { sendTelemetry = true; error.AssignLiteral("malwareBlocked"); bucketId = IsFrame() ? nsISecurityUITelemetry::WARNING_MALWARE_PAGE_FRAME : nsISecurityUITelemetry::WARNING_MALWARE_PAGE_TOP; } else if (NS_ERROR_UNWANTED_URI == aError) { sendTelemetry = true; error.AssignLiteral("unwantedBlocked"); bucketId = IsFrame() ? nsISecurityUITelemetry::WARNING_UNWANTED_PAGE_FRAME : nsISecurityUITelemetry::WARNING_UNWANTED_PAGE_TOP; } if (sendTelemetry && errorPage.EqualsIgnoreCase("blocked")) { Telemetry::Accumulate(Telemetry::SECURITY_UI, bucketId); } cssClass.AssignLiteral("blacklist"); } else if (NS_ERROR_CONTENT_CRASHED == aError) { errorPage.AssignLiteral("tabcrashed"); error.AssignLiteral("tabcrashed"); nsCOMPtr<EventTarget> handler = mChromeEventHandler; if (handler) { nsCOMPtr<Element> element = do_QueryInterface(handler); element->GetAttribute(NS_LITERAL_STRING("crashedPageTitle"), messageStr); } // DisplayLoadError requires a non-empty messageStr to proceed and call // LoadErrorPage. If the page doesn't have a title, we will use a blank // space which will be trimmed and thus treated as empty by the front-end. if (messageStr.IsEmpty()) { messageStr.AssignLiteral(u" "); } } else { // Errors requiring simple formatting switch (aError) { case NS_ERROR_MALFORMED_URI: // URI is malformed error.AssignLiteral("malformedURI"); break; case NS_ERROR_REDIRECT_LOOP: // Doc failed to load because the server generated too many redirects error.AssignLiteral("redirectLoop"); break; case NS_ERROR_UNKNOWN_SOCKET_TYPE: // Doc failed to load because PSM is not installed error.AssignLiteral("unknownSocketType"); break; case NS_ERROR_NET_RESET: // Doc failed to load because the server kept reseting the connection // before we could read any data from it error.AssignLiteral("netReset"); break; case NS_ERROR_DOCUMENT_NOT_CACHED: // Doc failed to load because the cache does not contain a copy of // the document. error.AssignLiteral("notCached"); break; case NS_ERROR_OFFLINE: // Doc failed to load because we are offline. error.AssignLiteral("netOffline"); break; case NS_ERROR_DOCUMENT_IS_PRINTMODE: // Doc navigation attempted while Printing or Print Preview error.AssignLiteral("isprinting"); break; case NS_ERROR_PORT_ACCESS_NOT_ALLOWED: // Port blocked for security reasons addHostPort = true; error.AssignLiteral("deniedPortAccess"); break; case NS_ERROR_UNKNOWN_PROXY_HOST: // Proxy hostname could not be resolved. error.AssignLiteral("proxyResolveFailure"); break; case NS_ERROR_PROXY_CONNECTION_REFUSED: // Proxy connection was refused. error.AssignLiteral("proxyConnectFailure"); break; case NS_ERROR_INVALID_CONTENT_ENCODING: // Bad Content Encoding. error.AssignLiteral("contentEncodingError"); break; case NS_ERROR_REMOTE_XUL: error.AssignLiteral("remoteXUL"); break; case NS_ERROR_UNSAFE_CONTENT_TYPE: // Channel refused to load from an unrecognized content type. error.AssignLiteral("unsafeContentType"); break; case NS_ERROR_CORRUPTED_CONTENT: // Broken Content Detected. e.g. Content-MD5 check failure. error.AssignLiteral("corruptedContentErrorv2"); break; case NS_ERROR_INTERCEPTION_FAILED: // ServiceWorker intercepted request, but something went wrong. error.AssignLiteral("corruptedContentErrorv2"); break; case NS_ERROR_NET_INADEQUATE_SECURITY: // Server negotiated bad TLS for HTTP/2. error.AssignLiteral("inadequateSecurityError"); addHostPort = true; break; default: break; } } // Test if the error should be displayed if (error.IsEmpty()) { return NS_OK; } // Test if the error needs to be formatted if (!messageStr.IsEmpty()) { // already obtained message } else { if (addHostPort) { // Build up the host:port string. nsAutoCString hostport; if (aURI) { aURI->GetHostPort(hostport); } else { hostport.Assign('?'); } CopyUTF8toUTF16(hostport, formatStrs[formatStrCount++]); } nsAutoCString spec; rv = NS_ERROR_NOT_AVAILABLE; if (aURI) { // displaying "file://" is aesthetically unpleasing and could even be // confusing to the user bool isFileURI = false; rv = aURI->SchemeIs("file", &isFileURI); if (NS_SUCCEEDED(rv) && isFileURI) { aURI->GetPath(spec); } else { aURI->GetSpec(spec); } nsAutoCString charset; // unescape and convert from origin charset aURI->GetOriginCharset(charset); nsCOMPtr<nsITextToSubURI> textToSubURI( do_GetService(NS_ITEXTTOSUBURI_CONTRACTID, &rv)); if (NS_SUCCEEDED(rv)) { rv = textToSubURI->UnEscapeURIForUI(charset, spec, formatStrs[formatStrCount]); } } else { spec.Assign('?'); } if (NS_FAILED(rv)) { CopyUTF8toUTF16(spec, formatStrs[formatStrCount]); } rv = NS_OK; ++formatStrCount; const char16_t* strs[kMaxFormatStrArgs]; for (uint32_t i = 0; i < formatStrCount; i++) { strs[i] = formatStrs[i].get(); } nsXPIDLString str; rv = stringBundle->FormatStringFromName(error.get(), strs, formatStrCount, getter_Copies(str)); NS_ENSURE_SUCCESS(rv, rv); messageStr.Assign(str.get()); } // Display the error as a page or an alert prompt NS_ENSURE_FALSE(messageStr.IsEmpty(), NS_ERROR_FAILURE); if (NS_ERROR_NET_INTERRUPT == aError || NS_ERROR_NET_RESET == aError) { bool isSecureURI = false; rv = aURI->SchemeIs("https", &isSecureURI); if (NS_SUCCEEDED(rv) && isSecureURI) { // Maybe TLS intolerant. Treat this as an SSL error. error.AssignLiteral("nssFailure2"); } } if (UseErrorPages()) { // Display an error page nsresult loadedPage = LoadErrorPage(aURI, aURL, errorPage.get(), error.get(), messageStr.get(), cssClass.get(), aFailedChannel); *aDisplayedErrorPage = NS_SUCCEEDED(loadedPage); } else { // The prompter reqires that our private window has a document (or it // asserts). Satisfy that assertion now since GetDoc will force // creation of one if it hasn't already been created. if (mScriptGlobal) { Unused << mScriptGlobal->GetDoc(); } // Display a message box prompter->Alert(nullptr, messageStr.get()); } return NS_OK; } #define PREF_SAFEBROWSING_ALLOWOVERRIDE "browser.safebrowsing.allowOverride" NS_IMETHODIMP nsDocShell::LoadErrorPage(nsIURI* aURI, const char16_t* aURL, const char* aErrorPage, const char16_t* aErrorType, const char16_t* aDescription, const char* aCSSClass, nsIChannel* aFailedChannel) { #if defined(DEBUG) if (MOZ_LOG_TEST(gDocShellLog, LogLevel::Debug)) { nsAutoCString chanName; if (aFailedChannel) { aFailedChannel->GetName(chanName); } else { chanName.AssignLiteral("<no channel>"); } MOZ_LOG(gDocShellLog, LogLevel::Debug, ("nsDocShell[%p]::LoadErrorPage(\"%s\", \"%s\", {...}, [%s])\n", this, aURI->GetSpecOrDefault().get(), NS_ConvertUTF16toUTF8(aURL).get(), chanName.get())); } #endif mFailedChannel = aFailedChannel; mFailedURI = aURI; mFailedLoadType = mLoadType; if (mLSHE) { // Abandon mLSHE's BFCache entry and create a new one. This way, if // we go back or forward to another SHEntry with the same doc // identifier, the error page won't persist. mLSHE->AbandonBFCacheEntry(); } nsAutoCString url; nsAutoCString charset; if (aURI) { nsresult rv = aURI->GetSpec(url); NS_ENSURE_SUCCESS(rv, rv); rv = aURI->GetOriginCharset(charset); NS_ENSURE_SUCCESS(rv, rv); } else if (aURL) { CopyUTF16toUTF8(aURL, url); } else { return NS_ERROR_INVALID_POINTER; } // Create a URL to pass all the error information through to the page. #undef SAFE_ESCAPE #define SAFE_ESCAPE(output, input, params) \ if (NS_WARN_IF(!NS_Escape(input, output, params))) { \ return NS_ERROR_OUT_OF_MEMORY; \ } nsCString escapedUrl, escapedCharset, escapedError, escapedDescription, escapedCSSClass; SAFE_ESCAPE(escapedUrl, url, url_Path); SAFE_ESCAPE(escapedCharset, charset, url_Path); SAFE_ESCAPE(escapedError, NS_ConvertUTF16toUTF8(aErrorType), url_Path); SAFE_ESCAPE(escapedDescription, NS_ConvertUTF16toUTF8(aDescription), url_Path); if (aCSSClass) { nsCString cssClass(aCSSClass); SAFE_ESCAPE(escapedCSSClass, cssClass, url_Path); } nsCString errorPageUrl("about:"); errorPageUrl.AppendASCII(aErrorPage); errorPageUrl.AppendLiteral("?e="); errorPageUrl.AppendASCII(escapedError.get()); errorPageUrl.AppendLiteral("&u="); errorPageUrl.AppendASCII(escapedUrl.get()); if ((strcmp(aErrorPage, "blocked") == 0) && Preferences::GetBool(PREF_SAFEBROWSING_ALLOWOVERRIDE, true)) { errorPageUrl.AppendLiteral("&o=1"); } if (!escapedCSSClass.IsEmpty()) { errorPageUrl.AppendLiteral("&s="); errorPageUrl.AppendASCII(escapedCSSClass.get()); } errorPageUrl.AppendLiteral("&c="); errorPageUrl.AppendASCII(escapedCharset.get()); nsAutoCString frameType(FrameTypeToString(mFrameType)); errorPageUrl.AppendLiteral("&f="); errorPageUrl.AppendASCII(frameType.get()); // Append the manifest URL if the error comes from an app. nsString manifestURL; nsresult rv = GetAppManifestURL(manifestURL); if (manifestURL.Length() > 0) { nsCString manifestParam; SAFE_ESCAPE(manifestParam, NS_ConvertUTF16toUTF8(manifestURL), url_Path); errorPageUrl.AppendLiteral("&m="); errorPageUrl.AppendASCII(manifestParam.get()); } nsCOMPtr<nsICaptivePortalService> cps = do_GetService(NS_CAPTIVEPORTAL_CID); int32_t cpsState; if (cps && NS_SUCCEEDED(cps->GetState(&cpsState)) && cpsState == nsICaptivePortalService::LOCKED_PORTAL) { errorPageUrl.AppendLiteral("&captive=true"); } // netError.xhtml's getDescription only handles the "d" parameter at the // end of the URL, so append it last. errorPageUrl.AppendLiteral("&d="); errorPageUrl.AppendASCII(escapedDescription.get()); nsCOMPtr<nsIURI> errorPageURI; rv = NS_NewURI(getter_AddRefs(errorPageURI), errorPageUrl); NS_ENSURE_SUCCESS(rv, rv); return InternalLoad(errorPageURI, nullptr, false, nullptr, mozilla::net::RP_Default, nsContentUtils::GetSystemPrincipal(), nullptr, INTERNAL_LOAD_FLAGS_NONE, EmptyString(), nullptr, NullString(), nullptr, nullptr, LOAD_ERROR_PAGE, nullptr, true, NullString(), this, nullptr, nullptr, nullptr); } NS_IMETHODIMP nsDocShell::Reload(uint32_t aReloadFlags) { if (!IsNavigationAllowed()) { return NS_OK; // JS may not handle returning of an error code } nsresult rv; NS_ASSERTION(((aReloadFlags & 0xf) == 0), "Reload command not updated to use load flags!"); NS_ASSERTION((aReloadFlags & EXTRA_LOAD_FLAGS) == 0, "Don't pass these flags to Reload"); uint32_t loadType = MAKE_LOAD_TYPE(LOAD_RELOAD_NORMAL, aReloadFlags); NS_ENSURE_TRUE(IsValidLoadType(loadType), NS_ERROR_INVALID_ARG); // Send notifications to the HistoryListener if any, about the impending // reload nsCOMPtr<nsISHistory> rootSH; rv = GetRootSessionHistory(getter_AddRefs(rootSH)); nsCOMPtr<nsISHistoryInternal> shistInt(do_QueryInterface(rootSH)); bool canReload = true; if (rootSH) { shistInt->NotifyOnHistoryReload(mCurrentURI, aReloadFlags, &canReload); } if (!canReload) { return NS_OK; } /* If you change this part of code, make sure bug 45297 does not re-occur */ if (mOSHE) { rv = LoadHistoryEntry(mOSHE, loadType); } else if (mLSHE) { // In case a reload happened before the current load is done rv = LoadHistoryEntry(mLSHE, loadType); } else { nsCOMPtr<nsIDocument> doc(GetDocument()); if (!doc) { return NS_OK; } // Do not inherit owner from document uint32_t flags = INTERNAL_LOAD_FLAGS_NONE; nsAutoString srcdoc; nsCOMPtr<nsIURI> baseURI; nsCOMPtr<nsIURI> originalURI; bool loadReplace = false; nsIPrincipal* triggeringPrincipal = doc->NodePrincipal(); nsAutoString contentTypeHint; doc->GetContentType(contentTypeHint); if (doc->IsSrcdocDocument()) { doc->GetSrcdocData(srcdoc); flags |= INTERNAL_LOAD_FLAGS_IS_SRCDOC; baseURI = doc->GetBaseURI(); } nsCOMPtr<nsIChannel> chan = doc->GetChannel(); if (chan) { uint32_t loadFlags; chan->GetLoadFlags(&loadFlags); loadReplace = loadFlags & nsIChannel::LOAD_REPLACE; nsCOMPtr<nsIHttpChannel> httpChan(do_QueryInterface(chan)); if (httpChan) { httpChan->GetOriginalURI(getter_AddRefs(originalURI)); } } MOZ_ASSERT(triggeringPrincipal, "Need a valid triggeringPrincipal"); // Stack variables to ensure changes to the member variables don't affect to // the call. nsCOMPtr<nsIURI> currentURI = mCurrentURI; nsCOMPtr<nsIURI> referrerURI = mReferrerURI; uint32_t referrerPolicy = mReferrerPolicy; rv = InternalLoad(currentURI, originalURI, loadReplace, referrerURI, referrerPolicy, triggeringPrincipal, triggeringPrincipal, flags, EmptyString(), // No window target NS_LossyConvertUTF16toASCII(contentTypeHint).get(), NullString(), // No forced download nullptr, // No post data nullptr, // No headers data loadType, // Load type nullptr, // No SHEntry true, srcdoc, // srcdoc argument for iframe this, // For reloads we are the source baseURI, nullptr, // No nsIDocShell nullptr); // No nsIRequest } return rv; } NS_IMETHODIMP nsDocShell::Stop(uint32_t aStopFlags) { // Revoke any pending event related to content viewer restoration mRestorePresentationEvent.Revoke(); if (mLoadType == LOAD_ERROR_PAGE) { if (mLSHE) { // Since error page loads never unset mLSHE, do so now SetHistoryEntry(&mOSHE, mLSHE); SetHistoryEntry(&mLSHE, nullptr); } mFailedChannel = nullptr; mFailedURI = nullptr; } if (nsIWebNavigation::STOP_CONTENT & aStopFlags) { // Stop the document loading if (mContentViewer) { nsCOMPtr<nsIContentViewer> cv = mContentViewer; cv->Stop(); } } if (nsIWebNavigation::STOP_NETWORK & aStopFlags) { // Suspend any timers that were set for this loader. We'll clear // them out for good in CreateContentViewer. if (mRefreshURIList) { SuspendRefreshURIs(); mSavedRefreshURIList.swap(mRefreshURIList); mRefreshURIList = nullptr; } // XXXbz We could also pass |this| to nsIURILoader::Stop. That will // just call Stop() on us as an nsIDocumentLoader... We need fewer // redundant apis! Stop(); } nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsIWebNavigation> shellAsNav(do_QueryObject(iter.GetNext())); if (shellAsNav) { shellAsNav->Stop(aStopFlags); } } return NS_OK; } NS_IMETHODIMP nsDocShell::GetDocument(nsIDOMDocument** aDocument) { NS_ENSURE_ARG_POINTER(aDocument); NS_ENSURE_SUCCESS(EnsureContentViewer(), NS_ERROR_FAILURE); return mContentViewer->GetDOMDocument(aDocument); } NS_IMETHODIMP nsDocShell::GetCurrentURI(nsIURI** aURI) { NS_ENSURE_ARG_POINTER(aURI); if (mCurrentURI) { return NS_EnsureSafeToReturn(mCurrentURI, aURI); } *aURI = nullptr; return NS_OK; } NS_IMETHODIMP nsDocShell::GetReferringURI(nsIURI** aURI) { NS_ENSURE_ARG_POINTER(aURI); *aURI = mReferrerURI; NS_IF_ADDREF(*aURI); return NS_OK; } NS_IMETHODIMP nsDocShell::SetSessionHistory(nsISHistory* aSessionHistory) { NS_ENSURE_TRUE(aSessionHistory, NS_ERROR_FAILURE); // make sure that we are the root docshell and // set a handle to root docshell in SH. nsCOMPtr<nsIDocShellTreeItem> root; /* Get the root docshell. If *this* is the root docshell * then save a handle to *this* in SH. SH needs it to do * traversions thro' its entries */ GetSameTypeRootTreeItem(getter_AddRefs(root)); NS_ENSURE_TRUE(root, NS_ERROR_FAILURE); if (root.get() == static_cast<nsIDocShellTreeItem*>(this)) { mSessionHistory = aSessionHistory; nsCOMPtr<nsISHistoryInternal> shPrivate = do_QueryInterface(mSessionHistory); NS_ENSURE_TRUE(shPrivate, NS_ERROR_FAILURE); shPrivate->SetRootDocShell(this); return NS_OK; } return NS_ERROR_FAILURE; } NS_IMETHODIMP nsDocShell::GetSessionHistory(nsISHistory** aSessionHistory) { NS_ENSURE_ARG_POINTER(aSessionHistory); *aSessionHistory = mSessionHistory; NS_IF_ADDREF(*aSessionHistory); return NS_OK; } //***************************************************************************** // nsDocShell::nsIWebPageDescriptor //***************************************************************************** NS_IMETHODIMP nsDocShell::LoadPage(nsISupports* aPageDescriptor, uint32_t aDisplayType) { nsCOMPtr<nsISHEntry> shEntryIn(do_QueryInterface(aPageDescriptor)); // Currently, the opaque 'page descriptor' is an nsISHEntry... if (!shEntryIn) { return NS_ERROR_INVALID_POINTER; } // Now clone shEntryIn, since we might end up modifying it later on, and we // want a page descriptor to be reusable. nsCOMPtr<nsISHEntry> shEntry; nsresult rv = shEntryIn->Clone(getter_AddRefs(shEntry)); NS_ENSURE_SUCCESS(rv, rv); // Give our cloned shEntry a new bfcache entry so this load is independent // of all other loads. (This is important, in particular, for bugs 582795 // and 585298.) rv = shEntry->AbandonBFCacheEntry(); NS_ENSURE_SUCCESS(rv, rv); // // load the page as view-source // if (nsIWebPageDescriptor::DISPLAY_AS_SOURCE == aDisplayType) { nsCOMPtr<nsIURI> oldUri, newUri; nsCString spec, newSpec; // Create a new view-source URI and replace the original. rv = shEntry->GetURI(getter_AddRefs(oldUri)); if (NS_FAILED(rv)) { return rv; } oldUri->GetSpec(spec); newSpec.AppendLiteral("view-source:"); newSpec.Append(spec); rv = NS_NewURI(getter_AddRefs(newUri), newSpec); if (NS_FAILED(rv)) { return rv; } shEntry->SetURI(newUri); shEntry->SetOriginalURI(nullptr); } rv = LoadHistoryEntry(shEntry, LOAD_HISTORY); return rv; } NS_IMETHODIMP nsDocShell::GetCurrentDescriptor(nsISupports** aPageDescriptor) { NS_PRECONDITION(aPageDescriptor, "Null out param?"); *aPageDescriptor = nullptr; nsISHEntry* src = mOSHE ? mOSHE : mLSHE; if (src) { nsCOMPtr<nsISHEntry> dest; nsresult rv = src->Clone(getter_AddRefs(dest)); if (NS_FAILED(rv)) { return rv; } // null out inappropriate cloned attributes... dest->SetParent(nullptr); dest->SetIsSubFrame(false); return CallQueryInterface(dest, aPageDescriptor); } return NS_ERROR_NOT_AVAILABLE; } //***************************************************************************** // nsDocShell::nsIBaseWindow //***************************************************************************** NS_IMETHODIMP nsDocShell::InitWindow(nativeWindow aParentNativeWindow, nsIWidget* aParentWidget, int32_t aX, int32_t aY, int32_t aWidth, int32_t aHeight) { SetParentWidget(aParentWidget); SetPositionAndSize(aX, aY, aWidth, aHeight, 0); return NS_OK; } NS_IMETHODIMP nsDocShell::Create() { if (mCreated) { // We've already been created return NS_OK; } NS_ASSERTION(mItemType == typeContent || mItemType == typeChrome, "Unexpected item type in docshell"); NS_ENSURE_TRUE(Preferences::GetRootBranch(), NS_ERROR_FAILURE); mCreated = true; if (gValidateOrigin == 0xffffffff) { // Check pref to see if we should prevent frameset spoofing gValidateOrigin = Preferences::GetBool("browser.frame.validate_origin", true); } // Should we use XUL error pages instead of alerts if possible? mUseErrorPages = Preferences::GetBool("browser.xul.error_pages.enabled", mUseErrorPages); if (!gAddedPreferencesVarCache) { Preferences::AddBoolVarCache(&sUseErrorPages, "browser.xul.error_pages.enabled", mUseErrorPages); gAddedPreferencesVarCache = true; } mDisableMetaRefreshWhenInactive = Preferences::GetBool("browser.meta_refresh_when_inactive.disabled", mDisableMetaRefreshWhenInactive); mDeviceSizeIsPageSize = Preferences::GetBool("docshell.device_size_is_page_size", mDeviceSizeIsPageSize); nsCOMPtr<nsIObserverService> serv = services::GetObserverService(); if (serv) { const char* msg = mItemType == typeContent ? NS_WEBNAVIGATION_CREATE : NS_CHROME_WEBNAVIGATION_CREATE; serv->NotifyObservers(GetAsSupports(this), msg, nullptr); } return NS_OK; } NS_IMETHODIMP nsDocShell::Destroy() { NS_ASSERTION(mItemType == typeContent || mItemType == typeChrome, "Unexpected item type in docshell"); if (!mIsBeingDestroyed) { nsCOMPtr<nsIObserverService> serv = services::GetObserverService(); if (serv) { const char* msg = mItemType == typeContent ? NS_WEBNAVIGATION_DESTROY : NS_CHROME_WEBNAVIGATION_DESTROY; serv->NotifyObservers(GetAsSupports(this), msg, nullptr); } } mIsBeingDestroyed = true; // Make sure we don't record profile timeline markers anymore SetRecordProfileTimelineMarkers(false); // Remove our pref observers if (mObserveErrorPages) { mObserveErrorPages = false; } // Make sure to blow away our mLoadingURI just in case. No loads // from inside this pagehide. mLoadingURI = nullptr; // Fire unload event before we blow anything away. (void)FirePageHideNotification(true); // Clear pointers to any detached nsEditorData that's lying // around in shistory entries. Breaks cycle. See bug 430921. if (mOSHE) { mOSHE->SetEditorData(nullptr); } if (mLSHE) { mLSHE->SetEditorData(nullptr); } // Note: mContentListener can be null if Init() failed and we're being // called from the destructor. if (mContentListener) { mContentListener->DropDocShellReference(); mContentListener->SetParentContentListener(nullptr); // Note that we do NOT set mContentListener to null here; that // way if someone tries to do a load in us after this point // the nsDSURIContentListener will block it. All of which // means that we should do this before calling Stop(), of // course. } // Stop any URLs that are currently being loaded... Stop(nsIWebNavigation::STOP_ALL); mEditorData = nullptr; mTransferableHookData = nullptr; // Save the state of the current document, before destroying the window. // This is needed to capture the state of a frameset when the new document // causes the frameset to be destroyed... PersistLayoutHistoryState(); // Remove this docshell from its parent's child list nsCOMPtr<nsIDocShellTreeItem> docShellParentAsItem = do_QueryInterface(GetAsSupports(mParent)); if (docShellParentAsItem) { docShellParentAsItem->RemoveChild(this); } if (mContentViewer) { mContentViewer->Close(nullptr); mContentViewer->Destroy(); mContentViewer = nullptr; } nsDocLoader::Destroy(); mParentWidget = nullptr; mCurrentURI = nullptr; if (mScriptGlobal) { mScriptGlobal->DetachFromDocShell(); mScriptGlobal = nullptr; } if (mSessionHistory) { // We want to destroy these content viewers now rather than // letting their destruction wait for the session history // entries to get garbage collected. (Bug 488394) nsCOMPtr<nsISHistoryInternal> shPrivate = do_QueryInterface(mSessionHistory); if (shPrivate) { shPrivate->EvictAllContentViewers(); } mSessionHistory = nullptr; } SetTreeOwner(nullptr); mOnePermittedSandboxedNavigator = nullptr; // required to break ref cycle mSecurityUI = nullptr; // Cancel any timers that were set for this docshell; this is needed // to break the cycle between us and the timers. CancelRefreshURITimers(); if (UsePrivateBrowsing()) { mPrivateBrowsingId = 0; mOriginAttributes.SyncAttributesWithPrivateBrowsing(false); if (mAffectPrivateSessionLifetime) { DecreasePrivateDocShellCount(); } } return NS_OK; } NS_IMETHODIMP nsDocShell::GetUnscaledDevicePixelsPerCSSPixel(double* aScale) { if (mParentWidget) { *aScale = mParentWidget->GetDefaultScale().scale; return NS_OK; } nsCOMPtr<nsIBaseWindow> ownerWindow(do_QueryInterface(mTreeOwner)); if (ownerWindow) { return ownerWindow->GetUnscaledDevicePixelsPerCSSPixel(aScale); } *aScale = 1.0; return NS_OK; } NS_IMETHODIMP nsDocShell::GetDevicePixelsPerDesktopPixel(double* aScale) { if (mParentWidget) { *aScale = mParentWidget->GetDesktopToDeviceScale().scale; return NS_OK; } nsCOMPtr<nsIBaseWindow> ownerWindow(do_QueryInterface(mTreeOwner)); if (ownerWindow) { return ownerWindow->GetDevicePixelsPerDesktopPixel(aScale); } *aScale = 1.0; return NS_OK; } NS_IMETHODIMP nsDocShell::SetPosition(int32_t aX, int32_t aY) { mBounds.x = aX; mBounds.y = aY; if (mContentViewer) { NS_ENSURE_SUCCESS(mContentViewer->Move(aX, aY), NS_ERROR_FAILURE); } return NS_OK; } NS_IMETHODIMP nsDocShell::SetPositionDesktopPix(int32_t aX, int32_t aY) { nsCOMPtr<nsIBaseWindow> ownerWindow(do_QueryInterface(mTreeOwner)); if (ownerWindow) { return ownerWindow->SetPositionDesktopPix(aX, aY); } double scale = 1.0; GetDevicePixelsPerDesktopPixel(&scale); return SetPosition(NSToIntRound(aX * scale), NSToIntRound(aY * scale)); } NS_IMETHODIMP nsDocShell::GetPosition(int32_t* aX, int32_t* aY) { return GetPositionAndSize(aX, aY, nullptr, nullptr); } NS_IMETHODIMP nsDocShell::SetSize(int32_t aWidth, int32_t aHeight, bool aRepaint) { int32_t x = 0, y = 0; GetPosition(&x, &y); return SetPositionAndSize(x, y, aWidth, aHeight, aRepaint ? nsIBaseWindow::eRepaint : 0); } NS_IMETHODIMP nsDocShell::GetSize(int32_t* aWidth, int32_t* aHeight) { return GetPositionAndSize(nullptr, nullptr, aWidth, aHeight); } NS_IMETHODIMP nsDocShell::SetPositionAndSize(int32_t aX, int32_t aY, int32_t aWidth, int32_t aHeight, uint32_t aFlags) { mBounds.x = aX; mBounds.y = aY; mBounds.width = aWidth; mBounds.height = aHeight; // Hold strong ref, since SetBounds can make us null out mContentViewer nsCOMPtr<nsIContentViewer> viewer = mContentViewer; if (viewer) { uint32_t cvflags = (aFlags & nsIBaseWindow::eDelayResize) ? nsIContentViewer::eDelayResize : 0; // XXX Border figured in here or is that handled elsewhere? nsresult rv = viewer->SetBoundsWithFlags(mBounds, cvflags); NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE); } return NS_OK; } NS_IMETHODIMP nsDocShell::GetPositionAndSize(int32_t* aX, int32_t* aY, int32_t* aWidth, int32_t* aHeight) { if (mParentWidget) { // ensure size is up-to-date if window has changed resolution LayoutDeviceIntRect r = mParentWidget->GetClientBounds(); SetPositionAndSize(mBounds.x, mBounds.y, r.width, r.height, 0); } // We should really consider just getting this information from // our window instead of duplicating the storage and code... if (aWidth || aHeight) { // Caller wants to know our size; make sure to give them up to // date information. nsCOMPtr<nsIDocument> doc(do_GetInterface(GetAsSupports(mParent))); if (doc) { doc->FlushPendingNotifications(Flush_Layout); } } DoGetPositionAndSize(aX, aY, aWidth, aHeight); return NS_OK; } void nsDocShell::DoGetPositionAndSize(int32_t* aX, int32_t* aY, int32_t* aWidth, int32_t* aHeight) { if (aX) { *aX = mBounds.x; } if (aY) { *aY = mBounds.y; } if (aWidth) { *aWidth = mBounds.width; } if (aHeight) { *aHeight = mBounds.height; } } NS_IMETHODIMP nsDocShell::Repaint(bool aForce) { nsCOMPtr<nsIPresShell> presShell = GetPresShell(); NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE); nsViewManager* viewManager = presShell->GetViewManager(); NS_ENSURE_TRUE(viewManager, NS_ERROR_FAILURE); viewManager->InvalidateAllViews(); return NS_OK; } NS_IMETHODIMP nsDocShell::GetParentWidget(nsIWidget** aParentWidget) { NS_ENSURE_ARG_POINTER(aParentWidget); *aParentWidget = mParentWidget; NS_IF_ADDREF(*aParentWidget); return NS_OK; } NS_IMETHODIMP nsDocShell::SetParentWidget(nsIWidget* aParentWidget) { mParentWidget = aParentWidget; return NS_OK; } NS_IMETHODIMP nsDocShell::GetParentNativeWindow(nativeWindow* aParentNativeWindow) { NS_ENSURE_ARG_POINTER(aParentNativeWindow); if (mParentWidget) { *aParentNativeWindow = mParentWidget->GetNativeData(NS_NATIVE_WIDGET); } else { *aParentNativeWindow = nullptr; } return NS_OK; } NS_IMETHODIMP nsDocShell::SetParentNativeWindow(nativeWindow aParentNativeWindow) { return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsDocShell::GetNativeHandle(nsAString& aNativeHandle) { // the nativeHandle should be accessed from nsIXULWindow return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsDocShell::GetVisibility(bool* aVisibility) { NS_ENSURE_ARG_POINTER(aVisibility); *aVisibility = false; if (!mContentViewer) { return NS_OK; } nsCOMPtr<nsIPresShell> presShell = GetPresShell(); if (!presShell) { return NS_OK; } // get the view manager nsViewManager* vm = presShell->GetViewManager(); NS_ENSURE_TRUE(vm, NS_ERROR_FAILURE); // get the root view nsView* view = vm->GetRootView(); // views are not ref counted NS_ENSURE_TRUE(view, NS_ERROR_FAILURE); // if our root view is hidden, we are not visible if (view->GetVisibility() == nsViewVisibility_kHide) { return NS_OK; } // otherwise, we must walk up the document and view trees checking // for a hidden view, unless we're an off screen browser, which // would make this test meaningless. RefPtr<nsDocShell> docShell = this; RefPtr<nsDocShell> parentItem = docShell->GetParentDocshell(); while (parentItem) { presShell = docShell->GetPresShell(); nsCOMPtr<nsIPresShell> pPresShell = parentItem->GetPresShell(); // Null-check for crash in bug 267804 if (!pPresShell) { NS_NOTREACHED("parent docshell has null pres shell"); return NS_OK; } vm = presShell->GetViewManager(); if (vm) { view = vm->GetRootView(); } if (view) { view = view->GetParent(); // anonymous inner view if (view) { view = view->GetParent(); // subdocumentframe's view } } nsIFrame* frame = view ? view->GetFrame() : nullptr; bool isDocShellOffScreen = false; docShell->GetIsOffScreenBrowser(&isDocShellOffScreen); if (frame && !frame->IsVisibleConsideringAncestors( nsIFrame::VISIBILITY_CROSS_CHROME_CONTENT_BOUNDARY) && !isDocShellOffScreen) { return NS_OK; } docShell = parentItem; parentItem = docShell->GetParentDocshell(); } nsCOMPtr<nsIBaseWindow> treeOwnerAsWin(do_QueryInterface(mTreeOwner)); if (!treeOwnerAsWin) { *aVisibility = true; return NS_OK; } // Check with the tree owner as well to give embedders a chance to // expose visibility as well. return treeOwnerAsWin->GetVisibility(aVisibility); } NS_IMETHODIMP nsDocShell::SetIsOffScreenBrowser(bool aIsOffScreen) { mIsOffScreenBrowser = aIsOffScreen; return NS_OK; } NS_IMETHODIMP nsDocShell::GetIsOffScreenBrowser(bool* aIsOffScreen) { *aIsOffScreen = mIsOffScreenBrowser; return NS_OK; } NS_IMETHODIMP nsDocShell::SetIsActive(bool aIsActive) { // We disallow setting active on chrome docshells. if (mItemType == nsIDocShellTreeItem::typeChrome) { return NS_ERROR_INVALID_ARG; } // Keep track ourselves. mIsActive = aIsActive; // Clear prerender flag if necessary. mIsPrerendered &= !aIsActive; // Tell the PresShell about it. nsCOMPtr<nsIPresShell> pshell = GetPresShell(); if (pshell) { pshell->SetIsActive(aIsActive); } // Tell the window about it if (mScriptGlobal) { mScriptGlobal->SetIsBackground(!aIsActive); if (nsCOMPtr<nsIDocument> doc = mScriptGlobal->GetExtantDoc()) { // Update orientation when the top-level browsing context becomes active. // We make an exception for apps because they currently rely on // orientation locks persisting across browsing contexts. if (aIsActive && !GetIsApp()) { nsCOMPtr<nsIDocShellTreeItem> parent; GetSameTypeParent(getter_AddRefs(parent)); if (!parent) { // We only care about the top-level browsing context. uint16_t orientation = OrientationLock(); ScreenOrientation::UpdateActiveOrientationLock(orientation); } } doc->PostVisibilityUpdateEvent(); } } // Tell the nsDOMNavigationTiming about it RefPtr<nsDOMNavigationTiming> timing = mTiming; if (!timing && mContentViewer) { nsIDocument* doc = mContentViewer->GetDocument(); if (doc) { timing = doc->GetNavigationTiming(); } } if (timing) { timing->NotifyDocShellStateChanged( aIsActive ? nsDOMNavigationTiming::DocShellState::eActive : nsDOMNavigationTiming::DocShellState::eInactive); } // Recursively tell all of our children, but don't tell <iframe mozbrowser> // children; they handle their state separately. nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsIDocShell> docshell = do_QueryObject(iter.GetNext()); if (!docshell) { continue; } if (!docshell->GetIsMozBrowserOrApp()) { docshell->SetIsActive(aIsActive); } } // Restart or stop meta refresh timers if necessary if (mDisableMetaRefreshWhenInactive) { if (mIsActive) { ResumeRefreshURIs(); } else { SuspendRefreshURIs(); } } return NS_OK; } NS_IMETHODIMP nsDocShell::GetIsActive(bool* aIsActive) { *aIsActive = mIsActive; return NS_OK; } NS_IMETHODIMP nsDocShell::SetIsPrerendered() { MOZ_ASSERT(!mIsPrerendered, "SetIsPrerendered() called on already prerendered docshell"); SetIsActive(false); mIsPrerendered = true; return NS_OK; } NS_IMETHODIMP nsDocShell::GetIsPrerendered(bool* aIsPrerendered) { *aIsPrerendered = mIsPrerendered; return NS_OK; } NS_IMETHODIMP nsDocShell::SetIsAppTab(bool aIsAppTab) { mIsAppTab = aIsAppTab; return NS_OK; } NS_IMETHODIMP nsDocShell::GetIsAppTab(bool* aIsAppTab) { *aIsAppTab = mIsAppTab; return NS_OK; } NS_IMETHODIMP nsDocShell::SetSandboxFlags(uint32_t aSandboxFlags) { mSandboxFlags = aSandboxFlags; return NS_OK; } NS_IMETHODIMP nsDocShell::GetSandboxFlags(uint32_t* aSandboxFlags) { *aSandboxFlags = mSandboxFlags; return NS_OK; } NS_IMETHODIMP nsDocShell::SetOnePermittedSandboxedNavigator(nsIDocShell* aSandboxedNavigator) { if (mOnePermittedSandboxedNavigator) { NS_ERROR("One Permitted Sandboxed Navigator should only be set once."); return NS_OK; } mOnePermittedSandboxedNavigator = do_GetWeakReference(aSandboxedNavigator); NS_ASSERTION(mOnePermittedSandboxedNavigator, "One Permitted Sandboxed Navigator must support weak references."); return NS_OK; } NS_IMETHODIMP nsDocShell::GetOnePermittedSandboxedNavigator(nsIDocShell** aSandboxedNavigator) { NS_ENSURE_ARG_POINTER(aSandboxedNavigator); nsCOMPtr<nsIDocShell> permittedNavigator = do_QueryReferent(mOnePermittedSandboxedNavigator); permittedNavigator.forget(aSandboxedNavigator); return NS_OK; } NS_IMETHODIMP nsDocShell::SetDefaultLoadFlags(uint32_t aDefaultLoadFlags) { mDefaultLoadFlags = aDefaultLoadFlags; // Tell the load group to set these flags all requests in the group if (mLoadGroup) { mLoadGroup->SetDefaultLoadFlags(aDefaultLoadFlags); } else { NS_WARNING("nsDocShell::SetDefaultLoadFlags has no loadGroup to propagate the flags to"); } // Recursively tell all of our children. We *do not* skip // <iframe mozbrowser> children - if someone sticks custom flags in this // docShell then they too get the same flags. nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsIDocShell> docshell = do_QueryObject(iter.GetNext()); if (!docshell) { continue; } docshell->SetDefaultLoadFlags(aDefaultLoadFlags); } return NS_OK; } NS_IMETHODIMP nsDocShell::GetDefaultLoadFlags(uint32_t* aDefaultLoadFlags) { *aDefaultLoadFlags = mDefaultLoadFlags; return NS_OK; } NS_IMETHODIMP nsDocShell::SetMixedContentChannel(nsIChannel* aMixedContentChannel) { #ifdef DEBUG // if the channel is non-null if (aMixedContentChannel) { // Get the root docshell. nsCOMPtr<nsIDocShellTreeItem> root; GetSameTypeRootTreeItem(getter_AddRefs(root)); NS_WARNING_ASSERTION(root.get() == static_cast<nsIDocShellTreeItem*>(this), "Setting mMixedContentChannel on a docshell that is " "not the root docshell"); } #endif mMixedContentChannel = aMixedContentChannel; return NS_OK; } NS_IMETHODIMP nsDocShell::GetFailedChannel(nsIChannel** aFailedChannel) { NS_ENSURE_ARG_POINTER(aFailedChannel); nsIDocument* doc = GetDocument(); if (!doc) { *aFailedChannel = nullptr; return NS_OK; } NS_IF_ADDREF(*aFailedChannel = doc->GetFailedChannel()); return NS_OK; } NS_IMETHODIMP nsDocShell::GetMixedContentChannel(nsIChannel** aMixedContentChannel) { NS_ENSURE_ARG_POINTER(aMixedContentChannel); NS_IF_ADDREF(*aMixedContentChannel = mMixedContentChannel); return NS_OK; } NS_IMETHODIMP nsDocShell::GetAllowMixedContentAndConnectionData(bool* aRootHasSecureConnection, bool* aAllowMixedContent, bool* aIsRootDocShell) { *aRootHasSecureConnection = true; *aAllowMixedContent = false; *aIsRootDocShell = false; nsCOMPtr<nsIDocShellTreeItem> sameTypeRoot; GetSameTypeRootTreeItem(getter_AddRefs(sameTypeRoot)); NS_ASSERTION(sameTypeRoot, "No document shell root tree item from document shell tree item!"); *aIsRootDocShell = sameTypeRoot.get() == static_cast<nsIDocShellTreeItem*>(this); // now get the document from sameTypeRoot nsCOMPtr<nsIDocument> rootDoc = sameTypeRoot->GetDocument(); if (rootDoc) { nsCOMPtr<nsIPrincipal> rootPrincipal = rootDoc->NodePrincipal(); // For things with system principal (e.g. scratchpad) there is no uri // aRootHasSecureConnection should be false. nsCOMPtr<nsIURI> rootUri; if (nsContentUtils::IsSystemPrincipal(rootPrincipal) || NS_FAILED(rootPrincipal->GetURI(getter_AddRefs(rootUri))) || !rootUri || NS_FAILED(rootUri->SchemeIs("https", aRootHasSecureConnection))) { *aRootHasSecureConnection = false; } // Check the root doc's channel against the root docShell's // mMixedContentChannel to see if they are the same. If they are the same, // the user has overriden the block. nsCOMPtr<nsIDocShell> rootDocShell = do_QueryInterface(sameTypeRoot); nsCOMPtr<nsIChannel> mixedChannel; rootDocShell->GetMixedContentChannel(getter_AddRefs(mixedChannel)); *aAllowMixedContent = mixedChannel && (mixedChannel == rootDoc->GetChannel()); } return NS_OK; } NS_IMETHODIMP nsDocShell::SetVisibility(bool aVisibility) { // Show()/Hide() may change mContentViewer. nsCOMPtr<nsIContentViewer> cv = mContentViewer; if (!cv) { return NS_OK; } if (aVisibility) { cv->Show(); } else { cv->Hide(); } return NS_OK; } NS_IMETHODIMP nsDocShell::GetEnabled(bool* aEnabled) { NS_ENSURE_ARG_POINTER(aEnabled); *aEnabled = true; return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsDocShell::SetEnabled(bool aEnabled) { return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsDocShell::SetFocus() { return NS_OK; } NS_IMETHODIMP nsDocShell::GetMainWidget(nsIWidget** aMainWidget) { // We don't create our own widget, so simply return the parent one. return GetParentWidget(aMainWidget); } NS_IMETHODIMP nsDocShell::GetTitle(char16_t** aTitle) { NS_ENSURE_ARG_POINTER(aTitle); *aTitle = ToNewUnicode(mTitle); return NS_OK; } NS_IMETHODIMP nsDocShell::SetTitle(const char16_t* aTitle) { // Store local title mTitle = aTitle; nsCOMPtr<nsIDocShellTreeItem> parent; GetSameTypeParent(getter_AddRefs(parent)); // When title is set on the top object it should then be passed to the // tree owner. if (!parent) { nsCOMPtr<nsIBaseWindow> treeOwnerAsWin(do_QueryInterface(mTreeOwner)); if (treeOwnerAsWin) { treeOwnerAsWin->SetTitle(aTitle); } } AssertOriginAttributesMatchPrivateBrowsing(); if (mCurrentURI && mLoadType != LOAD_ERROR_PAGE && mUseGlobalHistory && !UsePrivateBrowsing()) { nsCOMPtr<IHistory> history = services::GetHistoryService(); if (history) { history->SetURITitle(mCurrentURI, mTitle); } else if (mGlobalHistory) { mGlobalHistory->SetPageTitle(mCurrentURI, nsString(mTitle)); } } // Update SessionHistory with the document's title. if (mOSHE && mLoadType != LOAD_BYPASS_HISTORY && mLoadType != LOAD_ERROR_PAGE) { mOSHE->SetTitle(mTitle); } return NS_OK; } nsresult nsDocShell::GetCurScrollPos(int32_t aScrollOrientation, int32_t* aCurPos) { NS_ENSURE_ARG_POINTER(aCurPos); nsIScrollableFrame* sf = GetRootScrollFrame(); if (!sf) { return NS_ERROR_FAILURE; } nsPoint pt = sf->GetScrollPosition(); switch (aScrollOrientation) { case ScrollOrientation_X: *aCurPos = pt.x; return NS_OK; case ScrollOrientation_Y: *aCurPos = pt.y; return NS_OK; default: NS_ENSURE_TRUE(false, NS_ERROR_INVALID_ARG); } } nsresult nsDocShell::SetCurScrollPosEx(int32_t aCurHorizontalPos, int32_t aCurVerticalPos) { nsIScrollableFrame* sf = GetRootScrollFrame(); NS_ENSURE_TRUE(sf, NS_ERROR_FAILURE); sf->ScrollTo(nsPoint(aCurHorizontalPos, aCurVerticalPos), nsIScrollableFrame::INSTANT); return NS_OK; } //***************************************************************************** // nsDocShell::nsIScrollable //***************************************************************************** NS_IMETHODIMP nsDocShell::GetDefaultScrollbarPreferences(int32_t aScrollOrientation, int32_t* aScrollbarPref) { NS_ENSURE_ARG_POINTER(aScrollbarPref); switch (aScrollOrientation) { case ScrollOrientation_X: *aScrollbarPref = mDefaultScrollbarPref.x; return NS_OK; case ScrollOrientation_Y: *aScrollbarPref = mDefaultScrollbarPref.y; return NS_OK; default: NS_ENSURE_TRUE(false, NS_ERROR_INVALID_ARG); } return NS_ERROR_FAILURE; } NS_IMETHODIMP nsDocShell::SetDefaultScrollbarPreferences(int32_t aScrollOrientation, int32_t aScrollbarPref) { switch (aScrollOrientation) { case ScrollOrientation_X: mDefaultScrollbarPref.x = aScrollbarPref; return NS_OK; case ScrollOrientation_Y: mDefaultScrollbarPref.y = aScrollbarPref; return NS_OK; default: NS_ENSURE_TRUE(false, NS_ERROR_INVALID_ARG); } return NS_ERROR_FAILURE; } NS_IMETHODIMP nsDocShell::GetScrollbarVisibility(bool* aVerticalVisible, bool* aHorizontalVisible) { nsIScrollableFrame* sf = GetRootScrollFrame(); NS_ENSURE_TRUE(sf, NS_ERROR_FAILURE); uint32_t scrollbarVisibility = sf->GetScrollbarVisibility(); if (aVerticalVisible) { *aVerticalVisible = (scrollbarVisibility & nsIScrollableFrame::VERTICAL) != 0; } if (aHorizontalVisible) { *aHorizontalVisible = (scrollbarVisibility & nsIScrollableFrame::HORIZONTAL) != 0; } return NS_OK; } //***************************************************************************** // nsDocShell::nsITextScroll //***************************************************************************** NS_IMETHODIMP nsDocShell::ScrollByLines(int32_t aNumLines) { nsIScrollableFrame* sf = GetRootScrollFrame(); NS_ENSURE_TRUE(sf, NS_ERROR_FAILURE); sf->ScrollBy(nsIntPoint(0, aNumLines), nsIScrollableFrame::LINES, nsIScrollableFrame::SMOOTH); return NS_OK; } NS_IMETHODIMP nsDocShell::ScrollByPages(int32_t aNumPages) { nsIScrollableFrame* sf = GetRootScrollFrame(); NS_ENSURE_TRUE(sf, NS_ERROR_FAILURE); sf->ScrollBy(nsIntPoint(0, aNumPages), nsIScrollableFrame::PAGES, nsIScrollableFrame::SMOOTH); return NS_OK; } //***************************************************************************** // nsDocShell::nsIRefreshURI //***************************************************************************** NS_IMETHODIMP nsDocShell::RefreshURI(nsIURI* aURI, int32_t aDelay, bool aRepeat, bool aMetaRefresh, nsIPrincipal* aPrincipal) { NS_ENSURE_ARG(aURI); /* Check if Meta refresh/redirects are permitted. Some * embedded applications may not want to do this. * Must do this before sending out NOTIFY_REFRESH events * because listeners may have side effects (e.g. displaying a * button to manually trigger the refresh later). */ bool allowRedirects = true; GetAllowMetaRedirects(&allowRedirects); if (!allowRedirects) { return NS_OK; } // If any web progress listeners are listening for NOTIFY_REFRESH events, // give them a chance to block this refresh. bool sameURI; nsresult rv = aURI->Equals(mCurrentURI, &sameURI); if (NS_FAILED(rv)) { sameURI = false; } if (!RefreshAttempted(this, aURI, aDelay, sameURI)) { return NS_OK; } nsRefreshTimer* refreshTimer = new nsRefreshTimer(); uint32_t busyFlags = 0; GetBusyFlags(&busyFlags); nsCOMPtr<nsISupports> dataRef = refreshTimer; // Get the ref count to 1 refreshTimer->mDocShell = this; refreshTimer->mPrincipal = aPrincipal; refreshTimer->mURI = aURI; refreshTimer->mDelay = aDelay; refreshTimer->mRepeat = aRepeat; refreshTimer->mMetaRefresh = aMetaRefresh; if (!mRefreshURIList) { mRefreshURIList = nsArray::Create(); } if (busyFlags & BUSY_FLAGS_BUSY || (!mIsActive && mDisableMetaRefreshWhenInactive)) { // We don't want to create the timer right now. Instead queue up the request // and trigger the timer in EndPageLoad() or whenever we become active. mRefreshURIList->AppendElement(refreshTimer, /*weak =*/ false); } else { // There is no page loading going on right now. Create the // timer and fire it right away. nsCOMPtr<nsITimer> timer = do_CreateInstance("@mozilla.org/timer;1"); NS_ENSURE_TRUE(timer, NS_ERROR_FAILURE); mRefreshURIList->AppendElement(timer, /*weak =*/ false); // owning timer ref timer->InitWithCallback(refreshTimer, aDelay, nsITimer::TYPE_ONE_SHOT); } return NS_OK; } nsresult nsDocShell::ForceRefreshURIFromTimer(nsIURI* aURI, int32_t aDelay, bool aMetaRefresh, nsITimer* aTimer, nsIPrincipal* aPrincipal) { NS_PRECONDITION(aTimer, "Must have a timer here"); // Remove aTimer from mRefreshURIList if needed if (mRefreshURIList) { uint32_t n = 0; mRefreshURIList->GetLength(&n); for (uint32_t i = 0; i < n; ++i) { nsCOMPtr<nsITimer> timer = do_QueryElementAt(mRefreshURIList, i); if (timer == aTimer) { mRefreshURIList->RemoveElementAt(i); break; } } } return ForceRefreshURI(aURI, aDelay, aMetaRefresh, aPrincipal); } NS_IMETHODIMP nsDocShell::ForceRefreshURI(nsIURI* aURI, int32_t aDelay, bool aMetaRefresh, nsIPrincipal* aPrincipal) { NS_ENSURE_ARG(aURI); nsCOMPtr<nsIDocShellLoadInfo> loadInfo; CreateLoadInfo(getter_AddRefs(loadInfo)); NS_ENSURE_TRUE(loadInfo, NS_ERROR_OUT_OF_MEMORY); /* We do need to pass in a referrer, but we don't want it to * be sent to the server. */ loadInfo->SetSendReferrer(false); /* for most refreshes the current URI is an appropriate * internal referrer */ loadInfo->SetReferrer(mCurrentURI); // Set the triggering pricipal to aPrincipal if available, or current // document's principal otherwise. nsCOMPtr<nsIPrincipal> principal = aPrincipal; if (!principal) { nsCOMPtr<nsIDocument> doc = GetDocument(); if (!doc) { return NS_ERROR_FAILURE; } principal = doc->NodePrincipal(); } loadInfo->SetTriggeringPrincipal(principal); loadInfo->SetPrincipalIsExplicit(true); /* Check if this META refresh causes a redirection * to another site. */ bool equalUri = false; nsresult rv = aURI->Equals(mCurrentURI, &equalUri); if (NS_SUCCEEDED(rv) && (!equalUri) && aMetaRefresh && aDelay <= REFRESH_REDIRECT_TIMER) { /* It is a META refresh based redirection within the threshold time * we have in mind (15000 ms as defined by REFRESH_REDIRECT_TIMER). * Pass a REPLACE flag to LoadURI(). */ loadInfo->SetLoadType(nsIDocShellLoadInfo::loadNormalReplace); /* for redirects we mimic HTTP, which passes the * original referrer */ nsCOMPtr<nsIURI> internalReferrer; GetReferringURI(getter_AddRefs(internalReferrer)); if (internalReferrer) { loadInfo->SetReferrer(internalReferrer); } } else { loadInfo->SetLoadType(nsIDocShellLoadInfo::loadRefresh); } /* * LoadURI(...) will cancel all refresh timers... This causes the * Timer and its refreshData instance to be released... */ LoadURI(aURI, loadInfo, nsIWebNavigation::LOAD_FLAGS_DISALLOW_INHERIT_PRINCIPAL, true); return NS_OK; } nsresult nsDocShell::SetupRefreshURIFromHeader(nsIURI* aBaseURI, nsIPrincipal* aPrincipal, const nsACString& aHeader) { // Refresh headers are parsed with the following format in mind // <META HTTP-EQUIV=REFRESH CONTENT="5; URL=http://uri"> // By the time we are here, the following is true: // header = "REFRESH" // content = "5; URL=http://uri" // note the URL attribute is // optional, if it is absent, the currently loaded url is used. // Also note that the seconds and URL separator can be either // a ';' or a ','. The ',' separator should be illegal but CNN // is using it. // // We need to handle the following strings, where // - X is a set of digits // - URI is either a relative or absolute URI // // Note that URI should start with "url=" but we allow omission // // "" || ";" || "," // empty string. use the currently loaded URI // and refresh immediately. // "X" || "X;" || "X," // Refresh the currently loaded URI in X seconds. // "X; URI" || "X, URI" // Refresh using URI as the destination in X seconds. // "URI" || "; URI" || ", URI" // Refresh immediately using URI as the destination. // // Currently, anything immediately following the URI, if // separated by any char in the set "'\"\t\r\n " will be // ignored. So "10; url=go.html ; foo=bar" will work, // and so will "10; url='go.html'; foo=bar". However, // "10; url=go.html; foo=bar" will result in the uri // "go.html;" since ';' and ',' are valid uri characters. // // Note that we need to remove any tokens wrapping the URI. // These tokens currently include spaces, double and single // quotes. // when done, seconds is 0 or the given number of seconds // uriAttrib is empty or the URI specified MOZ_ASSERT(aPrincipal); nsAutoCString uriAttrib; int32_t seconds = 0; bool specifiesSeconds = false; nsACString::const_iterator iter, tokenStart, doneIterating; aHeader.BeginReading(iter); aHeader.EndReading(doneIterating); // skip leading whitespace while (iter != doneIterating && nsCRT::IsAsciiSpace(*iter)) { ++iter; } tokenStart = iter; // skip leading + and - if (iter != doneIterating && (*iter == '-' || *iter == '+')) { ++iter; } // parse number while (iter != doneIterating && (*iter >= '0' && *iter <= '9')) { seconds = seconds * 10 + (*iter - '0'); specifiesSeconds = true; ++iter; } if (iter != doneIterating) { // if we started with a '-', number is negative if (*tokenStart == '-') { seconds = -seconds; } // skip to next ';' or ',' nsACString::const_iterator iterAfterDigit = iter; while (iter != doneIterating && !(*iter == ';' || *iter == ',')) { if (specifiesSeconds) { // Non-whitespace characters here mean that the string is // malformed but tolerate sites that specify a decimal point, // even though meta refresh only works on whole seconds. if (iter == iterAfterDigit && !nsCRT::IsAsciiSpace(*iter) && *iter != '.') { // The characters between the seconds and the next // section are just garbage! // e.g. content="2a0z+,URL=http://www.mozilla.org/" // Just ignore this redirect. return NS_ERROR_FAILURE; } else if (nsCRT::IsAsciiSpace(*iter)) { // We've had at least one whitespace so tolerate the mistake // and drop through. // e.g. content="10 foo" ++iter; break; } } ++iter; } // skip any remaining whitespace while (iter != doneIterating && nsCRT::IsAsciiSpace(*iter)) { ++iter; } // skip ';' or ',' if (iter != doneIterating && (*iter == ';' || *iter == ',')) { ++iter; } // skip whitespace while (iter != doneIterating && nsCRT::IsAsciiSpace(*iter)) { ++iter; } } // possible start of URI tokenStart = iter; // skip "url = " to real start of URI if (iter != doneIterating && (*iter == 'u' || *iter == 'U')) { ++iter; if (iter != doneIterating && (*iter == 'r' || *iter == 'R')) { ++iter; if (iter != doneIterating && (*iter == 'l' || *iter == 'L')) { ++iter; // skip whitespace while (iter != doneIterating && nsCRT::IsAsciiSpace(*iter)) { ++iter; } if (iter != doneIterating && *iter == '=') { ++iter; // skip whitespace while (iter != doneIterating && nsCRT::IsAsciiSpace(*iter)) { ++iter; } // found real start of URI tokenStart = iter; } } } } // skip a leading '"' or '\''. bool isQuotedURI = false; if (tokenStart != doneIterating && (*tokenStart == '"' || *tokenStart == '\'')) { isQuotedURI = true; ++tokenStart; } // set iter to start of URI iter = tokenStart; // tokenStart here points to the beginning of URI // grab the rest of the URI while (iter != doneIterating) { if (isQuotedURI && (*iter == '"' || *iter == '\'')) { break; } ++iter; } // move iter one back if the last character is a '"' or '\'' if (iter != tokenStart && isQuotedURI) { --iter; if (!(*iter == '"' || *iter == '\'')) { ++iter; } } // URI is whatever's contained from tokenStart to iter. // note: if tokenStart == doneIterating, so is iter. nsresult rv = NS_OK; nsCOMPtr<nsIURI> uri; bool specifiesURI = false; if (tokenStart == iter) { uri = aBaseURI; } else { uriAttrib = Substring(tokenStart, iter); // NS_NewURI takes care of any whitespace surrounding the URL rv = NS_NewURI(getter_AddRefs(uri), uriAttrib, nullptr, aBaseURI); specifiesURI = true; } // No URI or seconds were specified if (!specifiesSeconds && !specifiesURI) { // Do nothing because the alternative is to spin around in a refresh // loop forever! return NS_ERROR_FAILURE; } if (NS_SUCCEEDED(rv)) { nsCOMPtr<nsIScriptSecurityManager> securityManager( do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv)); if (NS_SUCCEEDED(rv)) { rv = securityManager->CheckLoadURIWithPrincipal( aPrincipal, uri, nsIScriptSecurityManager::LOAD_IS_AUTOMATIC_DOCUMENT_REPLACEMENT); if (NS_SUCCEEDED(rv)) { bool isjs = true; rv = NS_URIChainHasFlags( uri, nsIProtocolHandler::URI_OPENING_EXECUTES_SCRIPT, &isjs); NS_ENSURE_SUCCESS(rv, rv); if (isjs) { return NS_ERROR_FAILURE; } } if (NS_SUCCEEDED(rv)) { // Since we can't travel back in time yet, just pretend // negative numbers do nothing at all. if (seconds < 0) { return NS_ERROR_FAILURE; } rv = RefreshURI(uri, seconds * 1000, false, true, aPrincipal); } } } return rv; } NS_IMETHODIMP nsDocShell::SetupRefreshURI(nsIChannel* aChannel) { nsresult rv; nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(aChannel, &rv)); if (NS_SUCCEEDED(rv)) { nsAutoCString refreshHeader; rv = httpChannel->GetResponseHeader(NS_LITERAL_CSTRING("refresh"), refreshHeader); if (!refreshHeader.IsEmpty()) { nsCOMPtr<nsIScriptSecurityManager> secMan = do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr<nsIPrincipal> principal; rv = secMan->GetChannelResultPrincipal(aChannel, getter_AddRefs(principal)); NS_ENSURE_SUCCESS(rv, rv); SetupReferrerFromChannel(aChannel); rv = SetupRefreshURIFromHeader(mCurrentURI, principal, refreshHeader); if (NS_SUCCEEDED(rv)) { return NS_REFRESHURI_HEADER_FOUND; } } } return rv; } static void DoCancelRefreshURITimers(nsIMutableArray* aTimerList) { if (!aTimerList) { return; } uint32_t n = 0; aTimerList->GetLength(&n); while (n) { nsCOMPtr<nsITimer> timer(do_QueryElementAt(aTimerList, --n)); aTimerList->RemoveElementAt(n); // bye bye owning timer ref if (timer) { timer->Cancel(); } } } NS_IMETHODIMP nsDocShell::CancelRefreshURITimers() { DoCancelRefreshURITimers(mRefreshURIList); DoCancelRefreshURITimers(mSavedRefreshURIList); mRefreshURIList = nullptr; mSavedRefreshURIList = nullptr; return NS_OK; } NS_IMETHODIMP nsDocShell::GetRefreshPending(bool* aResult) { if (!mRefreshURIList) { *aResult = false; return NS_OK; } uint32_t count; nsresult rv = mRefreshURIList->GetLength(&count); if (NS_SUCCEEDED(rv)) { *aResult = (count != 0); } return rv; } NS_IMETHODIMP nsDocShell::SuspendRefreshURIs() { if (mRefreshURIList) { uint32_t n = 0; mRefreshURIList->GetLength(&n); for (uint32_t i = 0; i < n; ++i) { nsCOMPtr<nsITimer> timer = do_QueryElementAt(mRefreshURIList, i); if (!timer) { continue; // this must be a nsRefreshURI already } // Replace this timer object with a nsRefreshTimer object. nsCOMPtr<nsITimerCallback> callback; timer->GetCallback(getter_AddRefs(callback)); timer->Cancel(); nsCOMPtr<nsITimerCallback> rt = do_QueryInterface(callback); NS_ASSERTION(rt, "RefreshURIList timer callbacks should only be RefreshTimer objects"); mRefreshURIList->ReplaceElementAt(rt, i, /*weak =*/ false); } } // Suspend refresh URIs for our child shells as well. nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsIDocShell> shell = do_QueryObject(iter.GetNext()); if (shell) { shell->SuspendRefreshURIs(); } } return NS_OK; } NS_IMETHODIMP nsDocShell::ResumeRefreshURIs() { RefreshURIFromQueue(); // Resume refresh URIs for our child shells as well. nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsIDocShell> shell = do_QueryObject(iter.GetNext()); if (shell) { shell->ResumeRefreshURIs(); } } return NS_OK; } nsresult nsDocShell::RefreshURIFromQueue() { if (!mRefreshURIList) { return NS_OK; } uint32_t n = 0; mRefreshURIList->GetLength(&n); while (n) { nsCOMPtr<nsITimerCallback> refreshInfo = do_QueryElementAt(mRefreshURIList, --n); if (refreshInfo) { // This is the nsRefreshTimer object, waiting to be // setup in a timer object and fired. // Create the timer and trigger it. uint32_t delay = static_cast<nsRefreshTimer*>( static_cast<nsITimerCallback*>(refreshInfo))->GetDelay(); nsCOMPtr<nsITimer> timer = do_CreateInstance("@mozilla.org/timer;1"); if (timer) { // Replace the nsRefreshTimer element in the queue with // its corresponding timer object, so that in case another // load comes through before the timer can go off, the timer will // get cancelled in CancelRefreshURITimer() mRefreshURIList->ReplaceElementAt(timer, n, /*weak =*/ false); timer->InitWithCallback(refreshInfo, delay, nsITimer::TYPE_ONE_SHOT); } } } return NS_OK; } //***************************************************************************** // nsDocShell::nsIContentViewerContainer //***************************************************************************** NS_IMETHODIMP nsDocShell::Embed(nsIContentViewer* aContentViewer, const char* aCommand, nsISupports* aExtraInfo) { // Save the LayoutHistoryState of the previous document, before // setting up new document PersistLayoutHistoryState(); nsresult rv = SetupNewViewer(aContentViewer); NS_ENSURE_SUCCESS(rv, rv); // If we are loading a wyciwyg url from history, change the base URI for // the document to the original http url that created the document.write(). // This makes sure that all relative urls in a document.written page loaded // via history work properly. if (mCurrentURI && (mLoadType & LOAD_CMD_HISTORY || mLoadType == LOAD_RELOAD_NORMAL || mLoadType == LOAD_RELOAD_CHARSET_CHANGE)) { bool isWyciwyg = false; // Check if the url is wyciwyg rv = mCurrentURI->SchemeIs("wyciwyg", &isWyciwyg); if (isWyciwyg && NS_SUCCEEDED(rv)) { SetBaseUrlForWyciwyg(aContentViewer); } } // XXX What if SetupNewViewer fails? if (mLSHE) { // Restore the editing state, if it's stored in session history. if (mLSHE->HasDetachedEditor()) { ReattachEditorToWindow(mLSHE); } // Set history.state SetDocCurrentStateObj(mLSHE); SetHistoryEntry(&mOSHE, mLSHE); } bool updateHistory = true; // Determine if this type of load should update history switch (mLoadType) { case LOAD_NORMAL_REPLACE: case LOAD_STOP_CONTENT_AND_REPLACE: case LOAD_RELOAD_BYPASS_CACHE: case LOAD_RELOAD_BYPASS_PROXY: case LOAD_RELOAD_BYPASS_PROXY_AND_CACHE: case LOAD_REPLACE_BYPASS_CACHE: updateHistory = false; break; default: break; } if (!updateHistory) { SetLayoutHistoryState(nullptr); } return NS_OK; } NS_IMETHODIMP nsDocShell::SetIsPrinting(bool aIsPrinting) { mIsPrintingOrPP = aIsPrinting; return NS_OK; } //***************************************************************************** // nsDocShell::nsIWebProgressListener //***************************************************************************** NS_IMETHODIMP nsDocShell::OnProgressChange(nsIWebProgress* aProgress, nsIRequest* aRequest, int32_t aCurSelfProgress, int32_t aMaxSelfProgress, int32_t aCurTotalProgress, int32_t aMaxTotalProgress) { return NS_OK; } NS_IMETHODIMP nsDocShell::OnStateChange(nsIWebProgress* aProgress, nsIRequest* aRequest, uint32_t aStateFlags, nsresult aStatus) { if ((~aStateFlags & (STATE_START | STATE_IS_NETWORK)) == 0) { // Save timing statistics. nsCOMPtr<nsIChannel> channel(do_QueryInterface(aRequest)); nsCOMPtr<nsIURI> uri; channel->GetURI(getter_AddRefs(uri)); nsAutoCString aURI; uri->GetAsciiSpec(aURI); nsCOMPtr<nsIWyciwygChannel> wcwgChannel(do_QueryInterface(aRequest)); nsCOMPtr<nsIWebProgress> webProgress = do_QueryInterface(GetAsSupports(this)); // We don't update navigation timing for wyciwyg channels if (this == aProgress && !wcwgChannel) { MaybeInitTiming(); mTiming->NotifyFetchStart(uri, ConvertLoadTypeToNavigationType(mLoadType)); } // Was the wyciwyg document loaded on this docshell? if (wcwgChannel && !mLSHE && (mItemType == typeContent) && aProgress == webProgress.get()) { bool equalUri = true; // Store the wyciwyg url in session history, only if it is // being loaded fresh for the first time. We don't want // multiple entries for successive loads if (mCurrentURI && NS_SUCCEEDED(uri->Equals(mCurrentURI, &equalUri)) && !equalUri) { nsCOMPtr<nsIDocShellTreeItem> parentAsItem; GetSameTypeParent(getter_AddRefs(parentAsItem)); nsCOMPtr<nsIDocShell> parentDS(do_QueryInterface(parentAsItem)); bool inOnLoadHandler = false; if (parentDS) { parentDS->GetIsExecutingOnLoadHandler(&inOnLoadHandler); } if (inOnLoadHandler) { // We're handling parent's load event listener, which causes // document.write in a subdocument. // Need to clear the session history for all child // docshells so that we can handle them like they would // all be added dynamically. nsCOMPtr<nsIDocShell> parent = do_QueryInterface(parentAsItem); if (parent) { bool oshe = false; nsCOMPtr<nsISHEntry> entry; parent->GetCurrentSHEntry(getter_AddRefs(entry), &oshe); static_cast<nsDocShell*>(parent.get())->ClearFrameHistory(entry); } } // This is a document.write(). Get the made-up url // from the channel and store it in session history. // Pass false for aCloneChildren, since we're creating // a new DOM here. AddToSessionHistory(uri, wcwgChannel, nullptr, nullptr, false, getter_AddRefs(mLSHE)); SetCurrentURI(uri, aRequest, true, 0); // Save history state of the previous page PersistLayoutHistoryState(); // We'll never get an Embed() for this load, so just go ahead // and SetHistoryEntry now. SetHistoryEntry(&mOSHE, mLSHE); } } // Page has begun to load mBusyFlags = BUSY_FLAGS_BUSY | BUSY_FLAGS_BEFORE_PAGE_LOAD; if ((aStateFlags & STATE_RESTORING) == 0) { // Show the progress cursor if the pref is set if (nsContentUtils::UseActivityCursor()) { nsCOMPtr<nsIWidget> mainWidget; GetMainWidget(getter_AddRefs(mainWidget)); if (mainWidget) { mainWidget->SetCursor(eCursor_spinning); } } } } else if ((~aStateFlags & (STATE_TRANSFERRING | STATE_IS_DOCUMENT)) == 0) { // Page is loading mBusyFlags = BUSY_FLAGS_BUSY | BUSY_FLAGS_PAGE_LOADING; } else if ((aStateFlags & STATE_STOP) && (aStateFlags & STATE_IS_NETWORK)) { // Page has finished loading mBusyFlags = BUSY_FLAGS_NONE; // Hide the progress cursor if the pref is set if (nsContentUtils::UseActivityCursor()) { nsCOMPtr<nsIWidget> mainWidget; GetMainWidget(getter_AddRefs(mainWidget)); if (mainWidget) { mainWidget->SetCursor(eCursor_standard); } } } if ((~aStateFlags & (STATE_IS_DOCUMENT | STATE_STOP)) == 0) { nsCOMPtr<nsIWebProgress> webProgress = do_QueryInterface(GetAsSupports(this)); // Is the document stop notification for this document? if (aProgress == webProgress.get()) { nsCOMPtr<nsIChannel> channel(do_QueryInterface(aRequest)); EndPageLoad(aProgress, channel, aStatus); } } // note that redirect state changes will go through here as well, but it // is better to handle those in OnRedirectStateChange where more // information is available. return NS_OK; } NS_IMETHODIMP nsDocShell::OnLocationChange(nsIWebProgress* aProgress, nsIRequest* aRequest, nsIURI* aURI, uint32_t aFlags) { NS_NOTREACHED("notification excluded in AddProgressListener(...)"); return NS_OK; } void nsDocShell::OnRedirectStateChange(nsIChannel* aOldChannel, nsIChannel* aNewChannel, uint32_t aRedirectFlags, uint32_t aStateFlags) { NS_ASSERTION(aStateFlags & STATE_REDIRECTING, "Calling OnRedirectStateChange when there is no redirect"); // If mixed content is allowed for the old channel, we forward // the permission to the new channel if it has the same origin // as the old one. if (mMixedContentChannel && mMixedContentChannel == aOldChannel) { nsresult rv = nsContentUtils::CheckSameOrigin(mMixedContentChannel, aNewChannel); if (NS_SUCCEEDED(rv)) { SetMixedContentChannel(aNewChannel); // Same origin: forward permission. } else { SetMixedContentChannel(nullptr); // Different origin: clear mMixedContentChannel. } } if (!(aStateFlags & STATE_IS_DOCUMENT)) { return; // not a toplevel document } nsCOMPtr<nsIURI> oldURI, newURI; aOldChannel->GetURI(getter_AddRefs(oldURI)); aNewChannel->GetURI(getter_AddRefs(newURI)); if (!oldURI || !newURI) { return; } // Below a URI visit is saved (see AddURIVisit method doc). // The visit chain looks something like: // ... // Site N - 1 // => Site N // (redirect to =>) Site N + 1 (we are here!) // Get N - 1 and transition type nsCOMPtr<nsIURI> previousURI; uint32_t previousFlags = 0; ExtractLastVisit(aOldChannel, getter_AddRefs(previousURI), &previousFlags); if (aRedirectFlags & nsIChannelEventSink::REDIRECT_INTERNAL || ChannelIsPost(aOldChannel)) { // 1. Internal redirects are ignored because they are specific to the // channel implementation. // 2. POSTs are not saved by global history. // // Regardless, we need to propagate the previous visit to the new // channel. SaveLastVisit(aNewChannel, previousURI, previousFlags); } else { nsCOMPtr<nsIURI> referrer; // Treat referrer as null if there is an error getting it. (void)NS_GetReferrerFromChannel(aOldChannel, getter_AddRefs(referrer)); // Get the HTTP response code, if available. uint32_t responseStatus = 0; nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(aOldChannel); if (httpChannel) { (void)httpChannel->GetResponseStatus(&responseStatus); } // Add visit N -1 => N AddURIVisit(oldURI, referrer, previousURI, previousFlags, responseStatus); // Since N + 1 could be the final destination, we will not save N => N + 1 // here. OnNewURI will do that, so we will cache it. SaveLastVisit(aNewChannel, oldURI, aRedirectFlags); } // check if the new load should go through the application cache. nsCOMPtr<nsIApplicationCacheChannel> appCacheChannel = do_QueryInterface(aNewChannel); if (appCacheChannel) { if (GeckoProcessType_Default != XRE_GetProcessType()) { // Permission will be checked in the parent process. appCacheChannel->SetChooseApplicationCache(true); } else { nsCOMPtr<nsIScriptSecurityManager> secMan = do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID); if (secMan) { nsCOMPtr<nsIPrincipal> principal; secMan->GetDocShellCodebasePrincipal(newURI, this, getter_AddRefs(principal)); appCacheChannel->SetChooseApplicationCache( NS_ShouldCheckAppCache(principal, UsePrivateBrowsing())); } } } if (!(aRedirectFlags & nsIChannelEventSink::REDIRECT_INTERNAL) && mLoadType & (LOAD_CMD_RELOAD | LOAD_CMD_HISTORY)) { mLoadType = LOAD_NORMAL_REPLACE; SetHistoryEntry(&mLSHE, nullptr); } } NS_IMETHODIMP nsDocShell::OnStatusChange(nsIWebProgress* aWebProgress, nsIRequest* aRequest, nsresult aStatus, const char16_t* aMessage) { NS_NOTREACHED("notification excluded in AddProgressListener(...)"); return NS_OK; } NS_IMETHODIMP nsDocShell::OnSecurityChange(nsIWebProgress* aWebProgress, nsIRequest* aRequest, uint32_t aState) { NS_NOTREACHED("notification excluded in AddProgressListener(...)"); return NS_OK; } nsresult nsDocShell::EndPageLoad(nsIWebProgress* aProgress, nsIChannel* aChannel, nsresult aStatus) { if (!aChannel) { return NS_ERROR_NULL_POINTER; } nsCOMPtr<nsIConsoleReportCollector> reporter = do_QueryInterface(aChannel); if (reporter) { reporter->FlushConsoleReports(GetDocument()); } nsCOMPtr<nsIURI> url; nsresult rv = aChannel->GetURI(getter_AddRefs(url)); if (NS_FAILED(rv)) { return rv; } nsCOMPtr<nsITimedChannel> timingChannel = do_QueryInterface(aChannel); if (timingChannel) { TimeStamp channelCreationTime; rv = timingChannel->GetChannelCreation(&channelCreationTime); if (NS_SUCCEEDED(rv) && !channelCreationTime.IsNull()) { Telemetry::AccumulateTimeDelta(Telemetry::TOTAL_CONTENT_PAGE_LOAD_TIME, channelCreationTime); nsCOMPtr<nsPILoadGroupInternal> internalLoadGroup = do_QueryInterface(mLoadGroup); if (internalLoadGroup) { internalLoadGroup->OnEndPageLoad(aChannel); } } } // Timing is picked up by the window, we don't need it anymore mTiming = nullptr; // clean up reload state for meta charset if (eCharsetReloadRequested == mCharsetReloadState) { mCharsetReloadState = eCharsetReloadStopOrigional; } else { mCharsetReloadState = eCharsetReloadInit; } // Save a pointer to the currently-loading history entry. // nsDocShell::EndPageLoad will clear mLSHE, but we may need this history // entry further down in this method. nsCOMPtr<nsISHEntry> loadingSHE = mLSHE; mozilla::Unused << loadingSHE; // XXX: Not sure if we need this anymore // // one of many safeguards that prevent death and destruction if // someone is so very very rude as to bring this window down // during this load handler. // nsCOMPtr<nsIDocShell> kungFuDeathGrip(this); // Notify the ContentViewer that the Document has finished loading. This // will cause any OnLoad(...) and PopState(...) handlers to fire. if (!mEODForCurrentDocument && mContentViewer) { mIsExecutingOnLoadHandler = true; mContentViewer->LoadComplete(aStatus); mIsExecutingOnLoadHandler = false; mEODForCurrentDocument = true; // If all documents have completed their loading // favor native event dispatch priorities // over performance if (--gNumberOfDocumentsLoading == 0) { // Hint to use normal native event dispatch priorities FavorPerformanceHint(false); } } /* Check if the httpChannel has any cache-control related response headers, * like no-store, no-cache. If so, update SHEntry so that * when a user goes back/forward to this page, we appropriately do * form value restoration or load from server. */ nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(aChannel)); if (!httpChannel) { // HttpChannel could be hiding underneath a Multipart channel. GetHttpChannel(aChannel, getter_AddRefs(httpChannel)); } if (httpChannel) { // figure out if SH should be saving layout state. bool discardLayoutState = ShouldDiscardLayoutState(httpChannel); if (mLSHE && discardLayoutState && (mLoadType & LOAD_CMD_NORMAL) && (mLoadType != LOAD_BYPASS_HISTORY) && (mLoadType != LOAD_ERROR_PAGE)) { mLSHE->SetSaveLayoutStateFlag(false); } } // Clear mLSHE after calling the onLoadHandlers. This way, if the // onLoadHandler tries to load something different in // itself or one of its children, we can deal with it appropriately. if (mLSHE) { mLSHE->SetLoadType(nsIDocShellLoadInfo::loadHistory); // Clear the mLSHE reference to indicate document loading is done one // way or another. SetHistoryEntry(&mLSHE, nullptr); } // if there's a refresh header in the channel, this method // will set it up for us. if (mIsActive || !mDisableMetaRefreshWhenInactive) RefreshURIFromQueue(); // Test whether this is the top frame or a subframe bool isTopFrame = true; nsCOMPtr<nsIDocShellTreeItem> targetParentTreeItem; rv = GetSameTypeParent(getter_AddRefs(targetParentTreeItem)); if (NS_SUCCEEDED(rv) && targetParentTreeItem) { isTopFrame = false; } // // If the page load failed, then deal with the error condition... // Errors are handled as follows: // 1. Check to see if it's a file not found error or bad content // encoding error. // 2. Send the URI to a keyword server (if enabled) // 3. If the error was DNS failure, then add www and .com to the URI // (if appropriate). // 4. Throw an error dialog box... // if (url && NS_FAILED(aStatus)) { if (aStatus == NS_ERROR_FILE_NOT_FOUND || aStatus == NS_ERROR_FILE_ACCESS_DENIED || aStatus == NS_ERROR_CORRUPTED_CONTENT || aStatus == NS_ERROR_INVALID_CONTENT_ENCODING) { DisplayLoadError(aStatus, url, nullptr, aChannel); return NS_OK; } else if (aStatus == NS_ERROR_INVALID_SIGNATURE) { // NS_ERROR_INVALID_SIGNATURE indicates a content-signature error. // This currently only happens in case a remote about page fails. // We have to load a fallback in this case. // XXX: We always load about blank here, firefox has to overwrite this if // it wants to display something else. return LoadURI(u"about:blank", // URI string nsIChannel::LOAD_NORMAL, // Load flags nullptr, // Referring URI nullptr, // Post data stream nullptr); // Headers stream } // Handle iframe document not loading error because source was // a tracking URL. We make a note of this iframe node by including // it in a dedicated array of blocked tracking nodes under its parent // document. (document of parent window of blocked document) if (isTopFrame == false && aStatus == NS_ERROR_TRACKING_URI) { // frameElement is our nsIContent to be annotated nsCOMPtr<nsIDOMElement> frameElement; nsPIDOMWindowOuter* thisWindow = GetWindow(); if (!thisWindow) { return NS_OK; } frameElement = thisWindow->GetFrameElement(); if (!frameElement) { return NS_OK; } // Parent window nsCOMPtr<nsIDocShellTreeItem> parentItem; GetSameTypeParent(getter_AddRefs(parentItem)); if (!parentItem) { return NS_OK; } nsCOMPtr<nsIDocument> parentDoc; parentDoc = parentItem->GetDocument(); if (!parentDoc) { return NS_OK; } nsCOMPtr<nsIContent> cont = do_QueryInterface(frameElement); parentDoc->AddBlockedTrackingNode(cont); return NS_OK; } if (sURIFixup) { // // Try and make an alternative URI from the old one // nsCOMPtr<nsIURI> newURI; nsCOMPtr<nsIInputStream> newPostData; nsAutoCString oldSpec; url->GetSpec(oldSpec); // // First try keyword fixup // nsAutoString keywordProviderName, keywordAsSent; if (aStatus == NS_ERROR_UNKNOWN_HOST && mAllowKeywordFixup) { bool keywordsEnabled = Preferences::GetBool("keyword.enabled", false); nsAutoCString host; url->GetHost(host); nsAutoCString scheme; url->GetScheme(scheme); int32_t dotLoc = host.FindChar('.'); // we should only perform a keyword search under the following // conditions: // (0) Pref keyword.enabled is true // (1) the url scheme is http (or https) // (2) the url does not have a protocol scheme // If we don't enforce such a policy, then we end up doing // keyword searchs on urls we don't intend like imap, file, // mailbox, etc. This could lead to a security problem where we // send data to the keyword server that we shouldn't be. // Someone needs to clean up keywords in general so we can // determine on a per url basis if we want keywords // enabled...this is just a bandaid... if (keywordsEnabled && !scheme.IsEmpty() && (scheme.Find("http") != 0)) { keywordsEnabled = false; } if (keywordsEnabled && (kNotFound == dotLoc)) { nsCOMPtr<nsIURIFixupInfo> info; // only send non-qualified hosts to the keyword server if (!mOriginalUriString.IsEmpty()) { sURIFixup->KeywordToURI(mOriginalUriString, getter_AddRefs(newPostData), getter_AddRefs(info)); } else { // // If this string was passed through nsStandardURL by // chance, then it may have been converted from UTF-8 to // ACE, which would result in a completely bogus keyword // query. Here we try to recover the original Unicode // value, but this is not 100% correct since the value may // have been normalized per the IDN normalization rules. // // Since we don't have access to the exact original string // that was entered by the user, this will just have to do. bool isACE; nsAutoCString utf8Host; nsCOMPtr<nsIIDNService> idnSrv = do_GetService(NS_IDNSERVICE_CONTRACTID); if (idnSrv && NS_SUCCEEDED(idnSrv->IsACE(host, &isACE)) && isACE && NS_SUCCEEDED(idnSrv->ConvertACEtoUTF8(host, utf8Host))) { sURIFixup->KeywordToURI(utf8Host, getter_AddRefs(newPostData), getter_AddRefs(info)); } else { sURIFixup->KeywordToURI(host, getter_AddRefs(newPostData), getter_AddRefs(info)); } } info->GetPreferredURI(getter_AddRefs(newURI)); if (newURI) { info->GetKeywordAsSent(keywordAsSent); info->GetKeywordProviderName(keywordProviderName); } } // end keywordsEnabled } // // Now try change the address, e.g. turn http://foo into // http://www.foo.com // if (aStatus == NS_ERROR_UNKNOWN_HOST || aStatus == NS_ERROR_NET_RESET) { bool doCreateAlternate = true; // Skip fixup for anything except a normal document load // operation on the topframe. if (mLoadType != LOAD_NORMAL || !isTopFrame) { doCreateAlternate = false; } else { // Test if keyword lookup produced a new URI or not if (newURI) { bool sameURI = false; url->Equals(newURI, &sameURI); if (!sameURI) { // Keyword lookup made a new URI so no need to try // an alternate one. doCreateAlternate = false; } } if (doCreateAlternate) { // Skip doing this if our channel was redirected, because we // shouldn't be guessing things about the post-redirect URI. nsLoadFlags loadFlags = 0; if (NS_FAILED(aChannel->GetLoadFlags(&loadFlags)) || (loadFlags & nsIChannel::LOAD_REPLACE)) { doCreateAlternate = false; } } } if (doCreateAlternate) { newURI = nullptr; newPostData = nullptr; keywordProviderName.Truncate(); keywordAsSent.Truncate(); sURIFixup->CreateFixupURI(oldSpec, nsIURIFixup::FIXUP_FLAGS_MAKE_ALTERNATE_URI, getter_AddRefs(newPostData), getter_AddRefs(newURI)); } } // Did we make a new URI that is different to the old one? If so // load it. // if (newURI) { // Make sure the new URI is different from the old one, // otherwise there's little point trying to load it again. bool sameURI = false; url->Equals(newURI, &sameURI); if (!sameURI) { nsAutoCString newSpec; newURI->GetSpec(newSpec); NS_ConvertUTF8toUTF16 newSpecW(newSpec); // This notification is meant for Firefox Health Report so it // can increment counts from the search engine MaybeNotifyKeywordSearchLoading(keywordProviderName, keywordAsSent); return LoadURI(newSpecW.get(), // URI string LOAD_FLAGS_NONE, // Load flags nullptr, // Referring URI newPostData, // Post data stream nullptr); // Headers stream } } } // Well, fixup didn't work :-( // It is time to throw an error dialog box, and be done with it... // Errors to be shown only on top-level frames if ((aStatus == NS_ERROR_UNKNOWN_HOST || aStatus == NS_ERROR_CONNECTION_REFUSED || aStatus == NS_ERROR_UNKNOWN_PROXY_HOST || aStatus == NS_ERROR_PROXY_CONNECTION_REFUSED) && (isTopFrame || UseErrorPages())) { DisplayLoadError(aStatus, url, nullptr, aChannel); } else if (aStatus == NS_ERROR_NET_TIMEOUT || aStatus == NS_ERROR_REDIRECT_LOOP || aStatus == NS_ERROR_UNKNOWN_SOCKET_TYPE || aStatus == NS_ERROR_NET_INTERRUPT || aStatus == NS_ERROR_NET_RESET || aStatus == NS_ERROR_OFFLINE || aStatus == NS_ERROR_MALWARE_URI || aStatus == NS_ERROR_PHISHING_URI || aStatus == NS_ERROR_UNWANTED_URI || aStatus == NS_ERROR_UNSAFE_CONTENT_TYPE || aStatus == NS_ERROR_REMOTE_XUL || aStatus == NS_ERROR_INTERCEPTION_FAILED || aStatus == NS_ERROR_NET_INADEQUATE_SECURITY || NS_ERROR_GET_MODULE(aStatus) == NS_ERROR_MODULE_SECURITY) { // Errors to be shown for any frame DisplayLoadError(aStatus, url, nullptr, aChannel); } else if (aStatus == NS_ERROR_DOCUMENT_NOT_CACHED) { // Non-caching channels will simply return NS_ERROR_OFFLINE. // Caching channels would have to look at their flags to work // out which error to return. Or we can fix up the error here. if (!(mLoadType & LOAD_CMD_HISTORY)) { aStatus = NS_ERROR_OFFLINE; } DisplayLoadError(aStatus, url, nullptr, aChannel); } } else if (url && NS_SUCCEEDED(aStatus)) { // If we have a host mozilla::net::PredictorLearnRedirect(url, aChannel, this); } return NS_OK; } //***************************************************************************** // nsDocShell: Content Viewer Management //***************************************************************************** nsresult nsDocShell::EnsureContentViewer() { if (mContentViewer) { return NS_OK; } if (mIsBeingDestroyed) { return NS_ERROR_FAILURE; } nsCOMPtr<nsIURI> baseURI; nsIPrincipal* principal = GetInheritedPrincipal(false); nsCOMPtr<nsIDocShellTreeItem> parentItem; GetSameTypeParent(getter_AddRefs(parentItem)); if (parentItem) { if (nsCOMPtr<nsPIDOMWindowOuter> domWin = GetWindow()) { nsCOMPtr<Element> parentElement = domWin->GetFrameElementInternal(); if (parentElement) { baseURI = parentElement->GetBaseURI(); } } } nsresult rv = CreateAboutBlankContentViewer(principal, baseURI); NS_ENSURE_STATE(mContentViewer); if (NS_SUCCEEDED(rv)) { nsCOMPtr<nsIDocument> doc(GetDocument()); NS_ASSERTION(doc, "Should have doc if CreateAboutBlankContentViewer " "succeeded!"); doc->SetIsInitialDocument(true); } return rv; } nsresult nsDocShell::CreateAboutBlankContentViewer(nsIPrincipal* aPrincipal, nsIURI* aBaseURI, bool aTryToSaveOldPresentation) { nsCOMPtr<nsIDocument> blankDoc; nsCOMPtr<nsIContentViewer> viewer; nsresult rv = NS_ERROR_FAILURE; /* mCreatingDocument should never be true at this point. However, it's a theoretical possibility. We want to know about it and make it stop, and this sounds like a job for an assertion. */ NS_ASSERTION(!mCreatingDocument, "infinite(?) loop creating document averted"); if (mCreatingDocument) { return NS_ERROR_FAILURE; } // mContentViewer->PermitUnload may release |this| docshell. nsCOMPtr<nsIDocShell> kungFuDeathGrip(this); AutoRestore<bool> creatingDocument(mCreatingDocument); mCreatingDocument = true; if (aPrincipal && !nsContentUtils::IsSystemPrincipal(aPrincipal) && mItemType != typeChrome) { MOZ_ASSERT(ChromeUtils::IsOriginAttributesEqualIgnoringAddonId( BasePrincipal::Cast(aPrincipal)->OriginAttributesRef(), mOriginAttributes)); } // Make sure timing is created. But first record whether we had it // already, so we don't clobber the timing for an in-progress load. bool hadTiming = mTiming; MaybeInitTiming(); if (mContentViewer) { // We've got a content viewer already. Make sure the user // permits us to discard the current document and replace it // with about:blank. And also ensure we fire the unload events // in the current document. // Unload gets fired first for // document loaded from the session history. mTiming->NotifyBeforeUnload(); bool okToUnload; rv = mContentViewer->PermitUnload(&okToUnload); if (NS_SUCCEEDED(rv) && !okToUnload) { // The user chose not to unload the page, interrupt the load. return NS_ERROR_FAILURE; } mSavingOldViewer = aTryToSaveOldPresentation && CanSavePresentation(LOAD_NORMAL, nullptr, nullptr); if (mTiming) { mTiming->NotifyUnloadAccepted(mCurrentURI); } // Make sure to blow away our mLoadingURI just in case. No loads // from inside this pagehide. mLoadingURI = nullptr; // Stop any in-progress loading, so that we don't accidentally trigger any // PageShow notifications from Embed() interrupting our loading below. Stop(); // Notify the current document that it is about to be unloaded!! // // It is important to fire the unload() notification *before* any state // is changed within the DocShell - otherwise, javascript will get the // wrong information :-( // (void)FirePageHideNotification(!mSavingOldViewer); } // Now make sure we don't think we're in the middle of firing unload after // this point. This will make us fire unload when the about:blank document // unloads... but that's ok, more or less. Would be nice if it fired load // too, of course. mFiredUnloadEvent = false; nsCOMPtr<nsIDocumentLoaderFactory> docFactory = nsContentUtils::FindInternalContentViewer(NS_LITERAL_CSTRING("text/html")); if (docFactory) { nsCOMPtr<nsIPrincipal> principal; if (mSandboxFlags & SANDBOXED_ORIGIN) { if (aPrincipal) { principal = nsNullPrincipal::CreateWithInheritedAttributes(aPrincipal); } else { principal = nsNullPrincipal::CreateWithInheritedAttributes(this); } } else { principal = aPrincipal; } // generate (about:blank) document to load docFactory->CreateBlankDocument(mLoadGroup, principal, getter_AddRefs(blankDoc)); if (blankDoc) { // Hack: set the base URI manually, since this document never // got Reset() with a channel. blankDoc->SetBaseURI(aBaseURI); blankDoc->SetContainer(this); // Copy our sandbox flags to the document. These are immutable // after being set here. blankDoc->SetSandboxFlags(mSandboxFlags); // create a content viewer for us and the new document docFactory->CreateInstanceForDocument( NS_ISUPPORTS_CAST(nsIDocShell*, this), blankDoc, "view", getter_AddRefs(viewer)); // hook 'em up if (viewer) { viewer->SetContainer(this); rv = Embed(viewer, "", 0); NS_ENSURE_SUCCESS(rv, rv); SetCurrentURI(blankDoc->GetDocumentURI(), nullptr, true, 0); rv = mIsBeingDestroyed ? NS_ERROR_NOT_AVAILABLE : NS_OK; } } } // The transient about:blank viewer doesn't have a session history entry. SetHistoryEntry(&mOSHE, nullptr); // Clear out our mTiming like we would in EndPageLoad, if we didn't // have one before entering this function. if (!hadTiming) { mTiming = nullptr; mBlankTiming = true; } return rv; } NS_IMETHODIMP nsDocShell::CreateAboutBlankContentViewer(nsIPrincipal* aPrincipal) { return CreateAboutBlankContentViewer(aPrincipal, nullptr); } bool nsDocShell::CanSavePresentation(uint32_t aLoadType, nsIRequest* aNewRequest, nsIDocument* aNewDocument) { if (!mOSHE) { return false; // no entry to save into } nsCOMPtr<nsIContentViewer> viewer; mOSHE->GetContentViewer(getter_AddRefs(viewer)); if (viewer) { NS_WARNING("mOSHE already has a content viewer!"); return false; } // Only save presentation for "normal" loads and link loads. Anything else // probably wants to refetch the page, so caching the old presentation // would be incorrect. if (aLoadType != LOAD_NORMAL && aLoadType != LOAD_HISTORY && aLoadType != LOAD_LINK && aLoadType != LOAD_STOP_CONTENT && aLoadType != LOAD_STOP_CONTENT_AND_REPLACE && aLoadType != LOAD_ERROR_PAGE) { return false; } // If the session history entry has the saveLayoutState flag set to false, // then we should not cache the presentation. bool canSaveState; mOSHE->GetSaveLayoutStateFlag(&canSaveState); if (!canSaveState) { return false; } // If the document is not done loading, don't cache it. if (!mScriptGlobal || mScriptGlobal->IsLoading()) { return false; } if (mScriptGlobal->WouldReuseInnerWindow(aNewDocument)) { return false; } // Avoid doing the work of saving the presentation state in the case where // the content viewer cache is disabled. if (nsSHistory::GetMaxTotalViewers() == 0) { return false; } // Don't cache the content viewer if we're in a subframe and the subframe // pref is disabled. bool cacheFrames = Preferences::GetBool("browser.sessionhistory.cache_subframes", false); if (!cacheFrames) { nsCOMPtr<nsIDocShellTreeItem> root; GetSameTypeParent(getter_AddRefs(root)); if (root && root != this) { return false; // this is a subframe load } } // If the document does not want its presentation cached, then don't. nsCOMPtr<nsIDocument> doc = mScriptGlobal->GetExtantDoc(); return doc && doc->CanSavePresentation(aNewRequest); } void nsDocShell::ReattachEditorToWindow(nsISHEntry* aSHEntry) { NS_ASSERTION(!mEditorData, "Why reattach an editor when we already have one?"); NS_ASSERTION(aSHEntry && aSHEntry->HasDetachedEditor(), "Reattaching when there's not a detached editor."); if (mEditorData || !aSHEntry) { return; } mEditorData = aSHEntry->ForgetEditorData(); if (mEditorData) { #ifdef DEBUG nsresult rv = #endif mEditorData->ReattachToWindow(this); NS_ASSERTION(NS_SUCCEEDED(rv), "Failed to reattach editing session"); } } void nsDocShell::DetachEditorFromWindow() { if (!mEditorData || mEditorData->WaitingForLoad()) { // If there's nothing to detach, or if the editor data is actually set // up for the _new_ page that's coming in, don't detach. return; } NS_ASSERTION(!mOSHE || !mOSHE->HasDetachedEditor(), "Detaching editor when it's already detached."); nsresult res = mEditorData->DetachFromWindow(); NS_ASSERTION(NS_SUCCEEDED(res), "Failed to detach editor"); if (NS_SUCCEEDED(res)) { // Make mOSHE hold the owning ref to the editor data. if (mOSHE) { mOSHE->SetEditorData(mEditorData.forget()); } else { mEditorData = nullptr; } } #ifdef DEBUG { bool isEditable; GetEditable(&isEditable); NS_ASSERTION(!isEditable, "Window is still editable after detaching editor."); } #endif // DEBUG } nsresult nsDocShell::CaptureState() { if (!mOSHE || mOSHE == mLSHE) { // No entry to save into, or we're replacing the existing entry. return NS_ERROR_FAILURE; } if (!mScriptGlobal) { return NS_ERROR_FAILURE; } nsCOMPtr<nsISupports> windowState = mScriptGlobal->SaveWindowState(); NS_ENSURE_TRUE(windowState, NS_ERROR_FAILURE); #ifdef DEBUG_PAGE_CACHE nsCOMPtr<nsIURI> uri; mOSHE->GetURI(getter_AddRefs(uri)); nsAutoCString spec; if (uri) { uri->GetSpec(spec); } printf("Saving presentation into session history\n"); printf(" SH URI: %s\n", spec.get()); #endif nsresult rv = mOSHE->SetWindowState(windowState); NS_ENSURE_SUCCESS(rv, rv); // Suspend refresh URIs and save off the timer queue rv = mOSHE->SetRefreshURIList(mSavedRefreshURIList); NS_ENSURE_SUCCESS(rv, rv); // Capture the current content viewer bounds. if (mContentViewer) { nsIntRect bounds; mContentViewer->GetBounds(bounds); rv = mOSHE->SetViewerBounds(bounds); NS_ENSURE_SUCCESS(rv, rv); } // Capture the docshell hierarchy. mOSHE->ClearChildShells(); uint32_t childCount = mChildList.Length(); for (uint32_t i = 0; i < childCount; ++i) { nsCOMPtr<nsIDocShellTreeItem> childShell = do_QueryInterface(ChildAt(i)); NS_ASSERTION(childShell, "null child shell"); mOSHE->AddChildShell(childShell); } return NS_OK; } NS_IMETHODIMP nsDocShell::RestorePresentationEvent::Run() { if (mDocShell && NS_FAILED(mDocShell->RestoreFromHistory())) { NS_WARNING("RestoreFromHistory failed"); } return NS_OK; } NS_IMETHODIMP nsDocShell::BeginRestore(nsIContentViewer* aContentViewer, bool aTop) { nsresult rv; if (!aContentViewer) { rv = EnsureContentViewer(); NS_ENSURE_SUCCESS(rv, rv); aContentViewer = mContentViewer; } // Dispatch events for restoring the presentation. We try to simulate // the progress notifications loading the document would cause, so we add // the document's channel to the loadgroup to initiate stateChange // notifications. nsCOMPtr<nsIDOMDocument> domDoc; aContentViewer->GetDOMDocument(getter_AddRefs(domDoc)); nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc); if (doc) { nsIChannel* channel = doc->GetChannel(); if (channel) { mEODForCurrentDocument = false; mIsRestoringDocument = true; mLoadGroup->AddRequest(channel, nullptr); mIsRestoringDocument = false; } } if (!aTop) { // This point corresponds to us having gotten OnStartRequest or // STATE_START, so do the same thing that CreateContentViewer does at // this point to ensure that unload/pagehide events for this document // will fire when it's unloaded again. mFiredUnloadEvent = false; // For non-top frames, there is no notion of making sure that the // previous document is in the domwindow when STATE_START notifications // happen. We can just call BeginRestore for all of the child shells // now. rv = BeginRestoreChildren(); NS_ENSURE_SUCCESS(rv, rv); } return NS_OK; } nsresult nsDocShell::BeginRestoreChildren() { nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsIDocShell> child = do_QueryObject(iter.GetNext()); if (child) { nsresult rv = child->BeginRestore(nullptr, false); NS_ENSURE_SUCCESS(rv, rv); } } return NS_OK; } NS_IMETHODIMP nsDocShell::FinishRestore() { // First we call finishRestore() on our children. In the simulated load, // all of the child frames finish loading before the main document. nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsIDocShell> child = do_QueryObject(iter.GetNext()); if (child) { child->FinishRestore(); } } if (mOSHE && mOSHE->HasDetachedEditor()) { ReattachEditorToWindow(mOSHE); } nsCOMPtr<nsIDocument> doc = GetDocument(); if (doc) { // Finally, we remove the request from the loadgroup. This will // cause onStateChange(STATE_STOP) to fire, which will fire the // pageshow event to the chrome. nsIChannel* channel = doc->GetChannel(); if (channel) { mIsRestoringDocument = true; mLoadGroup->RemoveRequest(channel, nullptr, NS_OK); mIsRestoringDocument = false; } } return NS_OK; } NS_IMETHODIMP nsDocShell::GetRestoringDocument(bool* aRestoring) { *aRestoring = mIsRestoringDocument; return NS_OK; } nsresult nsDocShell::RestorePresentation(nsISHEntry* aSHEntry, bool* aRestoring) { NS_ASSERTION(mLoadType & LOAD_CMD_HISTORY, "RestorePresentation should only be called for history loads"); nsCOMPtr<nsIContentViewer> viewer; aSHEntry->GetContentViewer(getter_AddRefs(viewer)); #ifdef DEBUG_PAGE_CACHE nsCOMPtr<nsIURI> uri; aSHEntry->GetURI(getter_AddRefs(uri)); nsAutoCString spec; if (uri) { uri->GetSpec(spec); } #endif *aRestoring = false; if (!viewer) { #ifdef DEBUG_PAGE_CACHE printf("no saved presentation for uri: %s\n", spec.get()); #endif return NS_OK; } // We need to make sure the content viewer's container is this docshell. // In subframe navigation, it's possible for the docshell that the // content viewer was originally loaded into to be replaced with a // different one. We don't currently support restoring the presentation // in that case. nsCOMPtr<nsIDocShell> container; viewer->GetContainer(getter_AddRefs(container)); if (!::SameCOMIdentity(container, GetAsSupports(this))) { #ifdef DEBUG_PAGE_CACHE printf("No valid container, clearing presentation\n"); #endif aSHEntry->SetContentViewer(nullptr); return NS_ERROR_FAILURE; } NS_ASSERTION(mContentViewer != viewer, "Restoring existing presentation"); #ifdef DEBUG_PAGE_CACHE printf("restoring presentation from session history: %s\n", spec.get()); #endif SetHistoryEntry(&mLSHE, aSHEntry); // Post an event that will remove the request after we've returned // to the event loop. This mimics the way it is called by nsIChannel // implementations. // Revoke any pending restore (just in case) NS_ASSERTION(!mRestorePresentationEvent.IsPending(), "should only have one RestorePresentationEvent"); mRestorePresentationEvent.Revoke(); RefPtr<RestorePresentationEvent> evt = new RestorePresentationEvent(this); nsresult rv = NS_DispatchToCurrentThread(evt); if (NS_SUCCEEDED(rv)) { mRestorePresentationEvent = evt.get(); // The rest of the restore processing will happen on our event // callback. *aRestoring = true; } return rv; } namespace { class MOZ_STACK_CLASS PresentationEventForgetter { public: explicit PresentationEventForgetter( nsRevocableEventPtr<nsDocShell::RestorePresentationEvent>& aRestorePresentationEvent) : mRestorePresentationEvent(aRestorePresentationEvent) , mEvent(aRestorePresentationEvent.get()) { } ~PresentationEventForgetter() { Forget(); } void Forget() { if (mRestorePresentationEvent.get() == mEvent) { mRestorePresentationEvent.Forget(); mEvent = nullptr; } } private: nsRevocableEventPtr<nsDocShell::RestorePresentationEvent>& mRestorePresentationEvent; RefPtr<nsDocShell::RestorePresentationEvent> mEvent; }; } // namespace nsresult nsDocShell::RestoreFromHistory() { MOZ_ASSERT(mRestorePresentationEvent.IsPending()); PresentationEventForgetter forgetter(mRestorePresentationEvent); // This section of code follows the same ordering as CreateContentViewer. if (!mLSHE) { return NS_ERROR_FAILURE; } nsCOMPtr<nsIContentViewer> viewer; mLSHE->GetContentViewer(getter_AddRefs(viewer)); if (!viewer) { return NS_ERROR_FAILURE; } if (mSavingOldViewer) { // We determined that it was safe to cache the document presentation // at the time we initiated the new load. We need to check whether // it's still safe to do so, since there may have been DOM mutations // or new requests initiated. nsCOMPtr<nsIDOMDocument> domDoc; viewer->GetDOMDocument(getter_AddRefs(domDoc)); nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc); nsIRequest* request = nullptr; if (doc) { request = doc->GetChannel(); } mSavingOldViewer = CanSavePresentation(mLoadType, request, doc); } nsCOMPtr<nsIContentViewer> oldCv(mContentViewer); nsCOMPtr<nsIContentViewer> newCv(viewer); int32_t minFontSize = 0; float textZoom = 1.0f; float pageZoom = 1.0f; float overrideDPPX = 0.0f; bool styleDisabled = false; if (oldCv && newCv) { oldCv->GetMinFontSize(&minFontSize); oldCv->GetTextZoom(&textZoom); oldCv->GetFullZoom(&pageZoom); oldCv->GetOverrideDPPX(&overrideDPPX); oldCv->GetAuthorStyleDisabled(&styleDisabled); } // Protect against mLSHE going away via a load triggered from // pagehide or unload. nsCOMPtr<nsISHEntry> origLSHE = mLSHE; // Make sure to blow away our mLoadingURI just in case. No loads // from inside this pagehide. mLoadingURI = nullptr; // Notify the old content viewer that it's being hidden. FirePageHideNotification(!mSavingOldViewer); // If mLSHE was changed as a result of the pagehide event, then // something else was loaded. Don't finish restoring. if (mLSHE != origLSHE) { return NS_OK; } // Add the request to our load group. We do this before swapping out // the content viewers so that consumers of STATE_START can access // the old document. We only deal with the toplevel load at this time -- // to be consistent with normal document loading, subframes cannot start // loading until after data arrives, which is after STATE_START completes. RefPtr<RestorePresentationEvent> currentPresentationRestoration = mRestorePresentationEvent.get(); Stop(); // Make sure we're still restoring the same presentation. // If we aren't, docshell is in process doing another load already. NS_ENSURE_STATE(currentPresentationRestoration == mRestorePresentationEvent.get()); BeginRestore(viewer, true); NS_ENSURE_STATE(currentPresentationRestoration == mRestorePresentationEvent.get()); forgetter.Forget(); // Set mFiredUnloadEvent = false so that the unload handler for the // *new* document will fire. mFiredUnloadEvent = false; mURIResultedInDocument = true; nsCOMPtr<nsISHistory> rootSH; GetRootSessionHistory(getter_AddRefs(rootSH)); if (rootSH) { nsCOMPtr<nsISHistoryInternal> hist = do_QueryInterface(rootSH); rootSH->GetIndex(&mPreviousTransIndex); hist->UpdateIndex(); rootSH->GetIndex(&mLoadedTransIndex); #ifdef DEBUG_PAGE_CACHE printf("Previous index: %d, Loaded index: %d\n\n", mPreviousTransIndex, mLoadedTransIndex); #endif } // Rather than call Embed(), we will retrieve the viewer from the session // history entry and swap it in. // XXX can we refactor this so that we can just call Embed()? PersistLayoutHistoryState(); nsresult rv; if (mContentViewer) { if (mSavingOldViewer && NS_FAILED(CaptureState())) { if (mOSHE) { mOSHE->SyncPresentationState(); } mSavingOldViewer = false; } } mSavedRefreshURIList = nullptr; // In cases where we use a transient about:blank viewer between loads, // we never show the transient viewer, so _its_ previous viewer is never // unhooked from the view hierarchy. Destroy any such previous viewer now, // before we grab the root view sibling, so that we don't grab a view // that's about to go away. if (mContentViewer) { nsCOMPtr<nsIContentViewer> previousViewer; mContentViewer->GetPreviousViewer(getter_AddRefs(previousViewer)); if (previousViewer) { mContentViewer->SetPreviousViewer(nullptr); previousViewer->Destroy(); } } // Save off the root view's parent and sibling so that we can insert the // new content viewer's root view at the same position. Also save the // bounds of the root view's widget. nsView* rootViewSibling = nullptr; nsView* rootViewParent = nullptr; nsIntRect newBounds(0, 0, 0, 0); nsCOMPtr<nsIPresShell> oldPresShell = GetPresShell(); if (oldPresShell) { nsViewManager* vm = oldPresShell->GetViewManager(); if (vm) { nsView* oldRootView = vm->GetRootView(); if (oldRootView) { rootViewSibling = oldRootView->GetNextSibling(); rootViewParent = oldRootView->GetParent(); mContentViewer->GetBounds(newBounds); } } } nsCOMPtr<nsIContent> container; nsCOMPtr<nsIDocument> sibling; if (rootViewParent && rootViewParent->GetParent()) { nsIFrame* frame = rootViewParent->GetParent()->GetFrame(); container = frame ? frame->GetContent() : nullptr; } if (rootViewSibling) { nsIFrame* frame = rootViewSibling->GetFrame(); sibling = frame ? frame->PresContext()->PresShell()->GetDocument() : nullptr; } // Transfer ownership to mContentViewer. By ensuring that either the // docshell or the session history, but not both, have references to the // content viewer, we prevent the viewer from being torn down after // Destroy() is called. if (mContentViewer) { mContentViewer->Close(mSavingOldViewer ? mOSHE.get() : nullptr); viewer->SetPreviousViewer(mContentViewer); } if (mOSHE && (!mContentViewer || !mSavingOldViewer)) { // We don't plan to save a viewer in mOSHE; tell it to drop // any other state it's holding. mOSHE->SyncPresentationState(); } // Order the mContentViewer setup just like Embed does. mContentViewer = nullptr; // Now that we're about to switch documents, forget all of our children. // Note that we cached them as needed up in CaptureState above. DestroyChildren(); mContentViewer.swap(viewer); // Grab all of the related presentation from the SHEntry now. // Clearing the viewer from the SHEntry will clear all of this state. nsCOMPtr<nsISupports> windowState; mLSHE->GetWindowState(getter_AddRefs(windowState)); mLSHE->SetWindowState(nullptr); bool sticky; mLSHE->GetSticky(&sticky); nsCOMPtr<nsIDOMDocument> domDoc; mContentViewer->GetDOMDocument(getter_AddRefs(domDoc)); nsCOMArray<nsIDocShellTreeItem> childShells; int32_t i = 0; nsCOMPtr<nsIDocShellTreeItem> child; while (NS_SUCCEEDED(mLSHE->ChildShellAt(i++, getter_AddRefs(child))) && child) { childShells.AppendObject(child); } // get the previous content viewer size nsIntRect oldBounds(0, 0, 0, 0); mLSHE->GetViewerBounds(oldBounds); // Restore the refresh URI list. The refresh timers will be restarted // when EndPageLoad() is called. nsCOMPtr<nsIMutableArray> refreshURIList; mLSHE->GetRefreshURIList(getter_AddRefs(refreshURIList)); // Reattach to the window object. mIsRestoringDocument = true; // for MediaDocument::BecomeInteractive rv = mContentViewer->Open(windowState, mLSHE); mIsRestoringDocument = false; // Hack to keep nsDocShellEditorData alive across the // SetContentViewer(nullptr) call below. nsAutoPtr<nsDocShellEditorData> data(mLSHE->ForgetEditorData()); // Now remove it from the cached presentation. mLSHE->SetContentViewer(nullptr); mEODForCurrentDocument = false; mLSHE->SetEditorData(data.forget()); #ifdef DEBUG { nsCOMPtr<nsIMutableArray> refreshURIs; mLSHE->GetRefreshURIList(getter_AddRefs(refreshURIs)); nsCOMPtr<nsIDocShellTreeItem> childShell; mLSHE->ChildShellAt(0, getter_AddRefs(childShell)); NS_ASSERTION(!refreshURIs && !childShell, "SHEntry should have cleared presentation state"); } #endif // Restore the sticky state of the viewer. The viewer has set this state // on the history entry in Destroy() just before marking itself non-sticky, // to avoid teardown of the presentation. mContentViewer->SetSticky(sticky); NS_ENSURE_SUCCESS(rv, rv); // mLSHE is now our currently-loaded document. SetHistoryEntry(&mOSHE, mLSHE); // XXX special wyciwyg handling in Embed()? // We aren't going to restore any items from the LayoutHistoryState, // but we don't want them to stay around in case the page is reloaded. SetLayoutHistoryState(nullptr); // This is the end of our Embed() replacement mSavingOldViewer = false; mEODForCurrentDocument = false; // Tell the event loop to favor plevents over user events, see comments // in CreateContentViewer. if (++gNumberOfDocumentsLoading == 1) { FavorPerformanceHint(true); } if (oldCv && newCv) { newCv->SetMinFontSize(minFontSize); newCv->SetTextZoom(textZoom); newCv->SetFullZoom(pageZoom); newCv->SetOverrideDPPX(overrideDPPX); newCv->SetAuthorStyleDisabled(styleDisabled); } nsCOMPtr<nsIDocument> document = do_QueryInterface(domDoc); if (document) { RefPtr<nsDocShell> parent = GetParentDocshell(); if (parent) { nsCOMPtr<nsIDocument> d = parent->GetDocument(); if (d) { if (d->EventHandlingSuppressed()) { document->SuppressEventHandling(nsIDocument::eEvents, d->EventHandlingSuppressed()); } // Ick, it'd be nicer to not rewalk all of the subdocs here. if (d->AnimationsPaused()) { document->SuppressEventHandling(nsIDocument::eAnimationsOnly, d->AnimationsPaused()); } } } // Use the uri from the mLSHE we had when we entered this function // (which need not match the document's URI if anchors are involved), // since that's the history entry we're loading. Note that if we use // origLSHE we don't have to worry about whether the entry in question // is still mLSHE or whether it's now mOSHE. nsCOMPtr<nsIURI> uri; origLSHE->GetURI(getter_AddRefs(uri)); SetCurrentURI(uri, document->GetChannel(), true, 0); } // This is the end of our CreateContentViewer() replacement. // Now we simulate a load. First, we restore the state of the javascript // window object. nsCOMPtr<nsPIDOMWindowOuter> privWin = GetWindow(); NS_ASSERTION(privWin, "could not get nsPIDOMWindow interface"); // Now, dispatch a title change event which would happen as the // <head> is parsed. document->NotifyPossibleTitleChange(false); // Now we simulate appending child docshells for subframes. for (i = 0; i < childShells.Count(); ++i) { nsIDocShellTreeItem* childItem = childShells.ObjectAt(i); nsCOMPtr<nsIDocShell> childShell = do_QueryInterface(childItem); // Make sure to not clobber the state of the child. Since AddChild // always clobbers it, save it off first. bool allowPlugins; childShell->GetAllowPlugins(&allowPlugins); bool allowJavascript; childShell->GetAllowJavascript(&allowJavascript); bool allowRedirects; childShell->GetAllowMetaRedirects(&allowRedirects); bool allowSubframes; childShell->GetAllowSubframes(&allowSubframes); bool allowImages; childShell->GetAllowImages(&allowImages); bool allowMedia = childShell->GetAllowMedia(); bool allowDNSPrefetch; childShell->GetAllowDNSPrefetch(&allowDNSPrefetch); bool allowContentRetargeting = childShell->GetAllowContentRetargeting(); bool allowContentRetargetingOnChildren = childShell->GetAllowContentRetargetingOnChildren(); uint32_t defaultLoadFlags; childShell->GetDefaultLoadFlags(&defaultLoadFlags); // this.AddChild(child) calls child.SetDocLoaderParent(this), meaning that // the child inherits our state. Among other things, this means that the // child inherits our mIsActive, mIsPrerendered and mPrivateBrowsingId, // which is what we want. AddChild(childItem); childShell->SetAllowPlugins(allowPlugins); childShell->SetAllowJavascript(allowJavascript); childShell->SetAllowMetaRedirects(allowRedirects); childShell->SetAllowSubframes(allowSubframes); childShell->SetAllowImages(allowImages); childShell->SetAllowMedia(allowMedia); childShell->SetAllowDNSPrefetch(allowDNSPrefetch); childShell->SetAllowContentRetargeting(allowContentRetargeting); childShell->SetAllowContentRetargetingOnChildren( allowContentRetargetingOnChildren); childShell->SetDefaultLoadFlags(defaultLoadFlags); rv = childShell->BeginRestore(nullptr, false); NS_ENSURE_SUCCESS(rv, rv); } // Make sure to restore the window state after adding the child shells back // to the tree. This is necessary for Thaw() and Resume() to propagate // properly. rv = privWin->RestoreWindowState(windowState); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr<nsIPresShell> shell = GetPresShell(); // We may be displayed on a different monitor (or in a different // HiDPI mode) than when we got into the history list. So we need // to check if this has happened. See bug 838239. // Because the prescontext normally handles resolution changes via // a runnable (see nsPresContext::UIResolutionChanged), its device // context won't be -immediately- updated as a result of calling // shell->BackingScaleFactorChanged(). // But we depend on that device context when adjusting the view size // via mContentViewer->SetBounds(newBounds) below. So we need to // explicitly tell it to check for changed resolution here. if (shell && shell->GetPresContext()->DeviceContext()->CheckDPIChange()) { shell->BackingScaleFactorChanged(); } nsViewManager* newVM = shell ? shell->GetViewManager() : nullptr; nsView* newRootView = newVM ? newVM->GetRootView() : nullptr; // Insert the new root view at the correct location in the view tree. if (container) { nsSubDocumentFrame* subDocFrame = do_QueryFrame(container->GetPrimaryFrame()); rootViewParent = subDocFrame ? subDocFrame->EnsureInnerView() : nullptr; } else { rootViewParent = nullptr; } if (sibling && sibling->GetShell() && sibling->GetShell()->GetViewManager()) { rootViewSibling = sibling->GetShell()->GetViewManager()->GetRootView(); } else { rootViewSibling = nullptr; } if (rootViewParent && newRootView && newRootView->GetParent() != rootViewParent) { nsViewManager* parentVM = rootViewParent->GetViewManager(); if (parentVM) { // InsertChild(parent, child, sib, true) inserts the child after // sib in content order, which is before sib in view order. BUT // when sib is null it inserts at the end of the the document // order, i.e., first in view order. But when oldRootSibling is // null, the old root as at the end of the view list --- last in // content order --- and we want to call InsertChild(parent, child, // nullptr, false) in that case. parentVM->InsertChild(rootViewParent, newRootView, rootViewSibling, rootViewSibling ? true : false); NS_ASSERTION(newRootView->GetNextSibling() == rootViewSibling, "error in InsertChild"); } } nsCOMPtr<nsPIDOMWindowInner> privWinInner = privWin->GetCurrentInnerWindow(); // If parent is suspended, increase suspension count. // This can't be done as early as event suppression since this // depends on docshell tree. privWinInner->SyncStateFromParentWindow(); // Now that all of the child docshells have been put into place, we can // restart the timers for the window and all of the child frames. privWinInner->Resume(); // Restore the refresh URI list. The refresh timers will be restarted // when EndPageLoad() is called. mRefreshURIList = refreshURIList; // Meta-refresh timers have been restarted for this shell, but not // for our children. Walk the child shells and restart their timers. nsTObserverArray<nsDocLoader*>::ForwardIterator iter(mChildList); while (iter.HasMore()) { nsCOMPtr<nsIDocShell> child = do_QueryObject(iter.GetNext()); if (child) { child->ResumeRefreshURIs(); } } // Make sure this presentation is the same size as the previous // presentation. If this is not the same size we showed it at last time, // then we need to resize the widget. // XXXbryner This interacts poorly with Firefox's infobar. If the old // presentation had the infobar visible, then we will resize the new // presentation to that smaller size. However, firing the locationchanged // event will hide the infobar, which will immediately resize the window // back to the larger size. A future optimization might be to restore // the presentation at the "wrong" size, then fire the locationchanged // event and check whether the docshell's new size is the same as the // cached viewer size (skipping the resize if they are equal). if (newRootView) { if (!newBounds.IsEmpty() && !newBounds.IsEqualEdges(oldBounds)) { #ifdef DEBUG_PAGE_CACHE printf("resize widget(%d, %d, %d, %d)\n", newBounds.x, newBounds.y, newBounds.width, newBounds.height); #endif mContentViewer->SetBounds(newBounds); } else { nsIScrollableFrame* rootScrollFrame = shell->GetRootScrollFrameAsScrollableExternal(); if (rootScrollFrame) { rootScrollFrame->PostScrolledAreaEventForCurrentArea(); } } } // The FinishRestore call below can kill these, null them out so we don't // have invalid pointer lying around. newRootView = rootViewSibling = rootViewParent = nullptr; newVM = nullptr; // Simulate the completion of the load. nsDocShell::FinishRestore(); // Restart plugins, and paint the content. if (shell) { shell->Thaw(); } return privWin->FireDelayedDOMEvents(); } nsresult nsDocShell::CreateContentViewer(const nsACString& aContentType, nsIRequest* aRequest, nsIStreamListener** aContentHandler) { *aContentHandler = nullptr; // Can we check the content type of the current content viewer // and reuse it without destroying it and re-creating it? NS_ASSERTION(mLoadGroup, "Someone ignored return from Init()?"); // Instantiate the content viewer object nsCOMPtr<nsIContentViewer> viewer; nsresult rv = NewContentViewerObj(aContentType, aRequest, mLoadGroup, aContentHandler, getter_AddRefs(viewer)); if (NS_FAILED(rv)) { return rv; } // Notify the current document that it is about to be unloaded!! // // It is important to fire the unload() notification *before* any state // is changed within the DocShell - otherwise, javascript will get the // wrong information :-( // if (mSavingOldViewer) { // We determined that it was safe to cache the document presentation // at the time we initiated the new load. We need to check whether // it's still safe to do so, since there may have been DOM mutations // or new requests initiated. nsCOMPtr<nsIDOMDocument> domDoc; viewer->GetDOMDocument(getter_AddRefs(domDoc)); nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc); mSavingOldViewer = CanSavePresentation(mLoadType, aRequest, doc); } NS_ASSERTION(!mLoadingURI, "Re-entering unload?"); nsCOMPtr<nsIChannel> aOpenedChannel = do_QueryInterface(aRequest); if (aOpenedChannel) { aOpenedChannel->GetURI(getter_AddRefs(mLoadingURI)); } FirePageHideNotification(!mSavingOldViewer); mLoadingURI = nullptr; // Set mFiredUnloadEvent = false so that the unload handler for the // *new* document will fire. mFiredUnloadEvent = false; // we've created a new document so go ahead and call // OnLoadingSite(), but don't fire OnLocationChange() // notifications before we've called Embed(). See bug 284993. mURIResultedInDocument = true; if (mLoadType == LOAD_ERROR_PAGE) { // We need to set the SH entry and our current URI here and not // at the moment we load the page. We want the same behavior // of Stop() as for a normal page load. See bug 514232 for details. // Revert mLoadType to load type to state the page load failed, // following function calls need it. mLoadType = mFailedLoadType; nsCOMPtr<nsIChannel> failedChannel = mFailedChannel; nsIDocument* doc = viewer->GetDocument(); if (doc) { doc->SetFailedChannel(failedChannel); } // Make sure we have a URI to set currentURI. nsCOMPtr<nsIURI> failedURI; if (failedChannel) { NS_GetFinalChannelURI(failedChannel, getter_AddRefs(failedURI)); } if (!failedURI) { failedURI = mFailedURI; } if (!failedURI) { // We need a URI object to store a session history entry, so make up a URI NS_NewURI(getter_AddRefs(failedURI), "about:blank"); } // When we don't have failedURI, something wrong will happen. See // bug 291876. MOZ_ASSERT(failedURI, "We don't have a URI for history APIs."); mFailedChannel = nullptr; mFailedURI = nullptr; // Create an shistory entry for the old load. if (failedURI) { bool errorOnLocationChangeNeeded = OnNewURI( failedURI, failedChannel, nullptr, nullptr, mLoadType, false, false, false); if (errorOnLocationChangeNeeded) { FireOnLocationChange(this, failedChannel, failedURI, LOCATION_CHANGE_ERROR_PAGE); } } // Be sure to have a correct mLSHE, it may have been cleared by // EndPageLoad. See bug 302115. if (mSessionHistory && !mLSHE) { int32_t idx; mSessionHistory->GetRequestedIndex(&idx); if (idx == -1) { mSessionHistory->GetIndex(&idx); } mSessionHistory->GetEntryAtIndex(idx, false, getter_AddRefs(mLSHE)); } mLoadType = LOAD_ERROR_PAGE; } bool onLocationChangeNeeded = OnLoadingSite(aOpenedChannel, false); // let's try resetting the load group if we need to... nsCOMPtr<nsILoadGroup> currentLoadGroup; NS_ENSURE_SUCCESS( aOpenedChannel->GetLoadGroup(getter_AddRefs(currentLoadGroup)), NS_ERROR_FAILURE); if (currentLoadGroup != mLoadGroup) { nsLoadFlags loadFlags = 0; // Cancel any URIs that are currently loading... // XXX: Need to do this eventually Stop(); // // Retarget the document to this loadgroup... // /* First attach the channel to the right loadgroup * and then remove from the old loadgroup. This * puts the notifications in the right order and * we don't null-out mLSHE in OnStateChange() for * all redirected urls */ aOpenedChannel->SetLoadGroup(mLoadGroup); // Mark the channel as being a document URI... aOpenedChannel->GetLoadFlags(&loadFlags); loadFlags |= nsIChannel::LOAD_DOCUMENT_URI; aOpenedChannel->SetLoadFlags(loadFlags); mLoadGroup->AddRequest(aRequest, nullptr); if (currentLoadGroup) { currentLoadGroup->RemoveRequest(aRequest, nullptr, NS_BINDING_RETARGETED); } // Update the notification callbacks, so that progress and // status information are sent to the right docshell... aOpenedChannel->SetNotificationCallbacks(this); } NS_ENSURE_SUCCESS(Embed(viewer, "", nullptr), NS_ERROR_FAILURE); mSavedRefreshURIList = nullptr; mSavingOldViewer = false; mEODForCurrentDocument = false; // if this document is part of a multipart document, // the ID can be used to distinguish it from the other parts. nsCOMPtr<nsIMultiPartChannel> multiPartChannel(do_QueryInterface(aRequest)); if (multiPartChannel) { nsCOMPtr<nsIPresShell> shell = GetPresShell(); if (NS_SUCCEEDED(rv) && shell) { nsIDocument* doc = shell->GetDocument(); if (doc) { uint32_t partID; multiPartChannel->GetPartID(&partID); doc->SetPartID(partID); } } } // Give hint to native plevent dispatch mechanism. If a document // is loading the native plevent dispatch mechanism should favor // performance over normal native event dispatch priorities. if (++gNumberOfDocumentsLoading == 1) { // Hint to favor performance for the plevent notification mechanism. // We want the pages to load as fast as possible even if its means // native messages might be starved. FavorPerformanceHint(true); } if (onLocationChangeNeeded) { FireOnLocationChange(this, aRequest, mCurrentURI, 0); } return NS_OK; } nsresult nsDocShell::NewContentViewerObj(const nsACString& aContentType, nsIRequest* aRequest, nsILoadGroup* aLoadGroup, nsIStreamListener** aContentHandler, nsIContentViewer** aViewer) { nsCOMPtr<nsIChannel> aOpenedChannel = do_QueryInterface(aRequest); nsCOMPtr<nsIDocumentLoaderFactory> docLoaderFactory = nsContentUtils::FindInternalContentViewer(aContentType); if (!docLoaderFactory) { return NS_ERROR_FAILURE; } // Now create an instance of the content viewer nsLayoutDLF makes the // determination if it should be a "view-source" instead of "view" nsresult rv = docLoaderFactory->CreateInstance("view", aOpenedChannel, aLoadGroup, aContentType, this, nullptr, aContentHandler, aViewer); NS_ENSURE_SUCCESS(rv, rv); (*aViewer)->SetContainer(this); return NS_OK; } nsresult nsDocShell::SetupNewViewer(nsIContentViewer* aNewViewer) { // // Copy content viewer state from previous or parent content viewer. // // The following logic is mirrored in nsHTMLDocument::StartDocumentLoad! // // Do NOT to maintain a reference to the old content viewer outside // of this "copying" block, or it will not be destroyed until the end of // this routine and all <SCRIPT>s and event handlers fail! (bug 20315) // // In this block of code, if we get an error result, we return it // but if we get a null pointer, that's perfectly legal for parent // and parentContentViewer. // int32_t x = 0; int32_t y = 0; int32_t cx = 0; int32_t cy = 0; // This will get the size from the current content viewer or from the // Init settings DoGetPositionAndSize(&x, &y, &cx, &cy); nsCOMPtr<nsIDocShellTreeItem> parentAsItem; NS_ENSURE_SUCCESS(GetSameTypeParent(getter_AddRefs(parentAsItem)), NS_ERROR_FAILURE); nsCOMPtr<nsIDocShell> parent(do_QueryInterface(parentAsItem)); nsAutoCString forceCharset; nsAutoCString hintCharset; int32_t hintCharsetSource; int32_t minFontSize; float textZoom; float pageZoom; float overrideDPPX; bool styleDisabled; // |newMUDV| also serves as a flag to set the data from the above vars nsCOMPtr<nsIContentViewer> newCv; if (mContentViewer || parent) { nsCOMPtr<nsIContentViewer> oldCv; if (mContentViewer) { // Get any interesting state from old content viewer // XXX: it would be far better to just reuse the document viewer , // since we know we're just displaying the same document as before oldCv = mContentViewer; // Tell the old content viewer to hibernate in session history when // it is destroyed. if (mSavingOldViewer && NS_FAILED(CaptureState())) { if (mOSHE) { mOSHE->SyncPresentationState(); } mSavingOldViewer = false; } } else { // No old content viewer, so get state from parent's content viewer parent->GetContentViewer(getter_AddRefs(oldCv)); } if (oldCv) { newCv = aNewViewer; if (newCv) { NS_ENSURE_SUCCESS(oldCv->GetForceCharacterSet(forceCharset), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(oldCv->GetHintCharacterSet(hintCharset), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(oldCv->GetHintCharacterSetSource(&hintCharsetSource), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(oldCv->GetMinFontSize(&minFontSize), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(oldCv->GetTextZoom(&textZoom), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(oldCv->GetFullZoom(&pageZoom), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(oldCv->GetOverrideDPPX(&overrideDPPX), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(oldCv->GetAuthorStyleDisabled(&styleDisabled), NS_ERROR_FAILURE); } } } nscolor bgcolor = NS_RGBA(0, 0, 0, 0); // Ensure that the content viewer is destroyed *after* the GC - bug 71515 nsCOMPtr<nsIContentViewer> contentViewer = mContentViewer; if (contentViewer) { // Stop any activity that may be happening in the old document before // releasing it... contentViewer->Stop(); // Try to extract the canvas background color from the old // presentation shell, so we can use it for the next document. nsCOMPtr<nsIPresShell> shell; contentViewer->GetPresShell(getter_AddRefs(shell)); if (shell) { bgcolor = shell->GetCanvasBackground(); } contentViewer->Close(mSavingOldViewer ? mOSHE.get() : nullptr); aNewViewer->SetPreviousViewer(contentViewer); } if (mOSHE && (!mContentViewer || !mSavingOldViewer)) { // We don't plan to save a viewer in mOSHE; tell it to drop // any other state it's holding. mOSHE->SyncPresentationState(); } mContentViewer = nullptr; // Now that we're about to switch documents, forget all of our children. // Note that we cached them as needed up in CaptureState above. DestroyChildren(); mContentViewer = aNewViewer; nsCOMPtr<nsIWidget> widget; NS_ENSURE_SUCCESS(GetMainWidget(getter_AddRefs(widget)), NS_ERROR_FAILURE); nsIntRect bounds(x, y, cx, cy); mContentViewer->SetNavigationTiming(mTiming); if (NS_FAILED(mContentViewer->Init(widget, bounds))) { mContentViewer = nullptr; NS_WARNING("ContentViewer Initialization failed"); return NS_ERROR_FAILURE; } // If we have old state to copy, set the old state onto the new content // viewer if (newCv) { NS_ENSURE_SUCCESS(newCv->SetForceCharacterSet(forceCharset), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(newCv->SetHintCharacterSet(hintCharset), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(newCv->SetHintCharacterSetSource(hintCharsetSource), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(newCv->SetMinFontSize(minFontSize), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(newCv->SetTextZoom(textZoom), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(newCv->SetFullZoom(pageZoom), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(newCv->SetOverrideDPPX(overrideDPPX), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(newCv->SetAuthorStyleDisabled(styleDisabled), NS_ERROR_FAILURE); } // Stuff the bgcolor from the old pres shell into the new // pres shell. This improves page load continuity. nsCOMPtr<nsIPresShell> shell; mContentViewer->GetPresShell(getter_AddRefs(shell)); if (shell) { shell->SetCanvasBackground(bgcolor); } // XXX: It looks like the LayoutState gets restored again in Embed() // right after the call to SetupNewViewer(...) // We don't show the mContentViewer yet, since we want to draw the old page // until we have enough of the new page to show. Just return with the new // viewer still set to hidden. return NS_OK; } nsresult nsDocShell::SetDocCurrentStateObj(nsISHEntry* aShEntry) { NS_ENSURE_STATE(mContentViewer); nsCOMPtr<nsIDocument> document = GetDocument(); NS_ENSURE_TRUE(document, NS_ERROR_FAILURE); nsCOMPtr<nsIStructuredCloneContainer> scContainer; if (aShEntry) { nsresult rv = aShEntry->GetStateData(getter_AddRefs(scContainer)); NS_ENSURE_SUCCESS(rv, rv); // If aShEntry is null, just set the document's state object to null. } // It's OK for scContainer too be null here; that just means there's no // state data associated with this history entry. document->SetStateObject(scContainer); return NS_OK; } nsresult nsDocShell::CheckLoadingPermissions() { // This method checks whether the caller may load content into // this docshell. Even though we've done our best to hide windows // from code that doesn't have the right to access them, it's // still possible for an evil site to open a window and access // frames in the new window through window.frames[] (which is // allAccess for historic reasons), so we still need to do this // check on load. nsresult rv = NS_OK; if (!gValidateOrigin || !IsFrame()) { // Origin validation was turned off, or we're not a frame. // Permit all loads. return rv; } // Note - The check for a current JSContext here isn't necessarily sensical. // It's just designed to preserve the old semantics during a mass-conversion // patch. if (!nsContentUtils::GetCurrentJSContext()) { return NS_OK; } // Check if the caller is from the same origin as this docshell, // or any of its ancestors. nsCOMPtr<nsIDocShellTreeItem> item(this); do { nsCOMPtr<nsIScriptGlobalObject> sgo = do_GetInterface(item); nsCOMPtr<nsIScriptObjectPrincipal> sop(do_QueryInterface(sgo)); nsIPrincipal* p; if (!sop || !(p = sop->GetPrincipal())) { return NS_ERROR_UNEXPECTED; } if (nsContentUtils::SubjectPrincipal()->Subsumes(p)) { // Same origin, permit load return NS_OK; } nsCOMPtr<nsIDocShellTreeItem> tmp; item->GetSameTypeParent(getter_AddRefs(tmp)); item.swap(tmp); } while (item); return NS_ERROR_DOM_PROP_ACCESS_DENIED; } //***************************************************************************** // nsDocShell: Site Loading //***************************************************************************** namespace { #ifdef MOZ_PLACES // Callback used by CopyFavicon to inform the favicon service that one URI // (mNewURI) has the same favicon URI (OnComplete's aFaviconURI) as another. class nsCopyFaviconCallback final : public nsIFaviconDataCallback { public: NS_DECL_ISUPPORTS nsCopyFaviconCallback(mozIAsyncFavicons* aSvc, nsIURI* aNewURI, nsIPrincipal* aLoadingPrincipal, bool aInPrivateBrowsing) : mSvc(aSvc) , mNewURI(aNewURI) , mLoadingPrincipal(aLoadingPrincipal) , mInPrivateBrowsing(aInPrivateBrowsing) { } NS_IMETHOD OnComplete(nsIURI* aFaviconURI, uint32_t aDataLen, const uint8_t* aData, const nsACString& aMimeType) override { // Continue only if there is an associated favicon. if (!aFaviconURI) { return NS_OK; } MOZ_ASSERT(aDataLen == 0, "We weren't expecting the callback to deliver data."); nsCOMPtr<mozIPlacesPendingOperation> po; return mSvc->SetAndFetchFaviconForPage( mNewURI, aFaviconURI, false, mInPrivateBrowsing ? nsIFaviconService::FAVICON_LOAD_PRIVATE : nsIFaviconService::FAVICON_LOAD_NON_PRIVATE, nullptr, mLoadingPrincipal, getter_AddRefs(po)); } private: ~nsCopyFaviconCallback() {} nsCOMPtr<mozIAsyncFavicons> mSvc; nsCOMPtr<nsIURI> mNewURI; nsCOMPtr<nsIPrincipal> mLoadingPrincipal; bool mInPrivateBrowsing; }; NS_IMPL_ISUPPORTS(nsCopyFaviconCallback, nsIFaviconDataCallback) #endif } // namespace void nsDocShell::CopyFavicon(nsIURI* aOldURI, nsIURI* aNewURI, nsIPrincipal* aLoadingPrincipal, bool aInPrivateBrowsing) { if (XRE_IsContentProcess()) { dom::ContentChild* contentChild = dom::ContentChild::GetSingleton(); if (contentChild) { mozilla::ipc::URIParams oldURI, newURI; SerializeURI(aOldURI, oldURI); SerializeURI(aNewURI, newURI); contentChild->SendCopyFavicon(oldURI, newURI, IPC::Principal(aLoadingPrincipal), aInPrivateBrowsing); } return; } #ifdef MOZ_PLACES nsCOMPtr<mozIAsyncFavicons> favSvc = do_GetService("@mozilla.org/browser/favicon-service;1"); if (favSvc) { nsCOMPtr<nsIFaviconDataCallback> callback = new nsCopyFaviconCallback(favSvc, aNewURI, aLoadingPrincipal, aInPrivateBrowsing); favSvc->GetFaviconURLForPage(aOldURI, callback); } #endif } class InternalLoadEvent : public Runnable { public: InternalLoadEvent(nsDocShell* aDocShell, nsIURI* aURI, nsIURI* aOriginalURI, bool aLoadReplace, nsIURI* aReferrer, uint32_t aReferrerPolicy, nsIPrincipal* aTriggeringPrincipal, nsIPrincipal* aPrincipalToInherit, uint32_t aFlags, const char* aTypeHint, nsIInputStream* aPostData, nsIInputStream* aHeadersData, uint32_t aLoadType, nsISHEntry* aSHEntry, bool aFirstParty, const nsAString& aSrcdoc, nsIDocShell* aSourceDocShell, nsIURI* aBaseURI) : mSrcdoc(aSrcdoc) , mDocShell(aDocShell) , mURI(aURI) , mOriginalURI(aOriginalURI) , mLoadReplace(aLoadReplace) , mReferrer(aReferrer) , mReferrerPolicy(aReferrerPolicy) , mTriggeringPrincipal(aTriggeringPrincipal) , mPrincipalToInherit(aPrincipalToInherit) , mPostData(aPostData) , mHeadersData(aHeadersData) , mSHEntry(aSHEntry) , mFlags(aFlags) , mLoadType(aLoadType) , mFirstParty(aFirstParty) , mSourceDocShell(aSourceDocShell) , mBaseURI(aBaseURI) { // Make sure to keep null things null as needed if (aTypeHint) { mTypeHint = aTypeHint; } } NS_IMETHOD Run() override { return mDocShell->InternalLoad(mURI, mOriginalURI, mLoadReplace, mReferrer, mReferrerPolicy, mTriggeringPrincipal, mPrincipalToInherit, mFlags, EmptyString(), mTypeHint.get(), NullString(), mPostData, mHeadersData, mLoadType, mSHEntry, mFirstParty, mSrcdoc, mSourceDocShell, mBaseURI, nullptr, nullptr); } private: // Use IDL strings so .get() returns null by default nsXPIDLString mWindowTarget; nsXPIDLCString mTypeHint; nsString mSrcdoc; RefPtr<nsDocShell> mDocShell; nsCOMPtr<nsIURI> mURI; nsCOMPtr<nsIURI> mOriginalURI; bool mLoadReplace; nsCOMPtr<nsIURI> mReferrer; uint32_t mReferrerPolicy; nsCOMPtr<nsIPrincipal> mTriggeringPrincipal; nsCOMPtr<nsIPrincipal> mPrincipalToInherit; nsCOMPtr<nsIInputStream> mPostData; nsCOMPtr<nsIInputStream> mHeadersData; nsCOMPtr<nsISHEntry> mSHEntry; uint32_t mFlags; uint32_t mLoadType; bool mFirstParty; nsCOMPtr<nsIDocShell> mSourceDocShell; nsCOMPtr<nsIURI> mBaseURI; }; /** * Returns true if we started an asynchronous load (i.e., from the network), but * the document we're loading there hasn't yet become this docshell's active * document. * * When JustStartedNetworkLoad is true, you should be careful about modifying * mLoadType and mLSHE. These are both set when the asynchronous load first * starts, and the load expects that, when it eventually runs InternalLoad, * mLoadType and mLSHE will have their original values. */ bool nsDocShell::JustStartedNetworkLoad() { return mDocumentRequest && mDocumentRequest != GetCurrentDocChannel(); } nsresult nsDocShell::CreatePrincipalFromReferrer(nsIURI* aReferrer, nsIPrincipal** aResult) { PrincipalOriginAttributes attrs; attrs.InheritFromDocShellToDoc(mOriginAttributes, aReferrer); nsCOMPtr<nsIPrincipal> prin = BasePrincipal::CreateCodebasePrincipal(aReferrer, attrs); prin.forget(aResult); return *aResult ? NS_OK : NS_ERROR_FAILURE; } bool nsDocShell::IsAboutNewtab(nsIURI* aURI) { if (!aURI) { return false; } bool isAbout; if (NS_WARN_IF(NS_FAILED(aURI->SchemeIs("about", &isAbout)))) { return false; } if (!isAbout) { return false; } nsAutoCString module; if (NS_WARN_IF(NS_FAILED(NS_GetAboutModuleName(aURI, module)))) { return false; } return module.Equals("newtab"); } NS_IMETHODIMP nsDocShell::InternalLoad(nsIURI* aURI, nsIURI* aOriginalURI, bool aLoadReplace, nsIURI* aReferrer, uint32_t aReferrerPolicy, nsIPrincipal* aTriggeringPrincipal, nsIPrincipal* aPrincipalToInherit, uint32_t aFlags, const nsAString& aWindowTarget, const char* aTypeHint, const nsAString& aFileName, nsIInputStream* aPostData, nsIInputStream* aHeadersData, uint32_t aLoadType, nsISHEntry* aSHEntry, bool aFirstParty, const nsAString& aSrcdoc, nsIDocShell* aSourceDocShell, nsIURI* aBaseURI, nsIDocShell** aDocShell, nsIRequest** aRequest) { MOZ_ASSERT(aTriggeringPrincipal, "need a valid TriggeringPrincipal"); nsresult rv = NS_OK; mOriginalUriString.Truncate(); if (gDocShellLeakLog && MOZ_LOG_TEST(gDocShellLeakLog, LogLevel::Debug)) { PR_LogPrint("DOCSHELL %p InternalLoad %s\n", this, aURI ? aURI->GetSpecOrDefault().get() : ""); } // Initialize aDocShell/aRequest if (aDocShell) { *aDocShell = nullptr; } if (aRequest) { *aRequest = nullptr; } if (!aURI) { return NS_ERROR_NULL_POINTER; } NS_ENSURE_TRUE(IsValidLoadType(aLoadType), NS_ERROR_INVALID_ARG); NS_ENSURE_TRUE(!mIsBeingDestroyed, NS_ERROR_NOT_AVAILABLE); rv = EnsureScriptEnvironment(); if (NS_FAILED(rv)) { return rv; } // wyciwyg urls can only be loaded through history. Any normal load of // wyciwyg through docshell is illegal. Disallow such loads. if (aLoadType & LOAD_CMD_NORMAL) { bool isWyciwyg = false; rv = aURI->SchemeIs("wyciwyg", &isWyciwyg); if ((isWyciwyg && NS_SUCCEEDED(rv)) || NS_FAILED(rv)) { return NS_ERROR_FAILURE; } } bool isJavaScript = false; if (NS_FAILED(aURI->SchemeIs("javascript", &isJavaScript))) { isJavaScript = false; } bool isTargetTopLevelDocShell = false; nsCOMPtr<nsIDocShell> targetDocShell; if (!aWindowTarget.IsEmpty()) { // Locate the target DocShell. nsCOMPtr<nsIDocShellTreeItem> targetItem; // Only _self, _parent, and _top are supported in noopener case. But we // have to be careful to not apply that to the noreferrer case. See bug // 1358469. bool allowNamedTarget = !(aFlags & INTERNAL_LOAD_FLAGS_NO_OPENER) || (aFlags & INTERNAL_LOAD_FLAGS_DONT_SEND_REFERRER); if (allowNamedTarget || aWindowTarget.LowerCaseEqualsLiteral("_self") || aWindowTarget.LowerCaseEqualsLiteral("_parent") || aWindowTarget.LowerCaseEqualsLiteral("_top")) { rv = FindItemWithName(aWindowTarget, nullptr, this, getter_AddRefs(targetItem)); NS_ENSURE_SUCCESS(rv, rv); } targetDocShell = do_QueryInterface(targetItem); if (targetDocShell) { // If the targetDocShell and the rootDocShell are the same, then the // targetDocShell is the top level document and hence we should // consider this TYPE_DOCUMENT // // For example: // 1. target="_top" // 2. target="_parent", where this docshell is in the 2nd level of // docshell tree. nsCOMPtr<nsIDocShellTreeItem> sameTypeRoot; targetDocShell->GetSameTypeRootTreeItem(getter_AddRefs(sameTypeRoot)); NS_ASSERTION(sameTypeRoot, "No document shell root tree item from targetDocShell!"); nsCOMPtr<nsIDocShell> rootShell = do_QueryInterface(sameTypeRoot); NS_ASSERTION(rootShell, "No root docshell from document shell root tree item."); isTargetTopLevelDocShell = targetDocShell == rootShell; } else { // If the targetDocShell doesn't exist, then this is a new docShell // and we should consider this a TYPE_DOCUMENT load // // For example, when target="_blank" isTargetTopLevelDocShell = true; } } // The contentType will be INTERNAL_(I)FRAME if: // 1. This docshell is for iframe. // 2. AND aWindowTarget is not a new window, nor a top-level window. // // This variable will be used when we call NS_CheckContentLoadPolicy, and // later when we call DoURILoad. uint32_t contentType; if (IsFrame() && !isTargetTopLevelDocShell) { nsCOMPtr<Element> requestingElement = mScriptGlobal->AsOuter()->GetFrameElementInternal(); if (requestingElement) { contentType = requestingElement->IsHTMLElement(nsGkAtoms::iframe) ? nsIContentPolicy::TYPE_INTERNAL_IFRAME : nsIContentPolicy::TYPE_INTERNAL_FRAME; } else { // If we have lost our frame element by now, just assume we're // an iframe since that's more common. contentType = nsIContentPolicy::TYPE_INTERNAL_IFRAME; } } else { contentType = nsIContentPolicy::TYPE_DOCUMENT; } // If there's no targetDocShell, that means we are about to create a new window, // perform a content policy check before creating the window. if (!targetDocShell) { nsCOMPtr<Element> requestingElement; nsISupports* requestingContext = nullptr; if (contentType == nsIContentPolicy::TYPE_DOCUMENT) { if (XRE_IsContentProcess()) { // In e10s the child process doesn't have access to the element that // contains the browsing context (because that element is in the chrome // process). So we just pass mScriptGlobal. requestingContext = ToSupports(mScriptGlobal); } else { // This is for loading non-e10s tabs and toplevel windows of various // sorts. // For the toplevel window cases, requestingElement will be null. requestingElement = mScriptGlobal->AsOuter()->GetFrameElementInternal(); requestingContext = requestingElement; } } else { requestingElement = mScriptGlobal->AsOuter()->GetFrameElementInternal(); requestingContext = requestingElement; #ifdef DEBUG if (requestingElement) { // Get the docshell type for requestingElement. nsCOMPtr<nsIDocument> requestingDoc = requestingElement->OwnerDoc(); nsCOMPtr<nsIDocShell> elementDocShell = requestingDoc->GetDocShell(); // requestingElement docshell type = current docshell type. MOZ_ASSERT(mItemType == elementDocShell->ItemType(), "subframes should have the same docshell type as their parent"); } #endif } int16_t shouldLoad = nsIContentPolicy::ACCEPT; rv = NS_CheckContentLoadPolicy(contentType, aURI, aTriggeringPrincipal, requestingContext, EmptyCString(), // mime guess nullptr, // extra &shouldLoad); if (NS_FAILED(rv) || NS_CP_REJECTED(shouldLoad)) { if (NS_SUCCEEDED(rv) && shouldLoad == nsIContentPolicy::REJECT_TYPE) { return NS_ERROR_CONTENT_BLOCKED_SHOW_ALT; } return NS_ERROR_CONTENT_BLOCKED; } // If HSTS priming was set by nsMixedContentBlocker::ShouldLoad, and we // would block due to mixed content, go ahead and block here. If we try to // proceed with priming, we will error out later on. nsCOMPtr<nsIDocShell> docShell = NS_CP_GetDocShellFromContext(requestingContext); // When loading toplevel windows, requestingContext can be null. We don't // really care about HSTS in that situation, though; loads in toplevel // windows should all be browser UI. if (docShell) { nsIDocument* document = docShell->GetDocument(); NS_ENSURE_TRUE(document, NS_OK); HSTSPrimingState state = document->GetHSTSPrimingStateForLocation(aURI); if (state == HSTSPrimingState::eHSTS_PRIMING_BLOCK) { // HSTS Priming currently disabled for InternalLoad, so we need to clear // the location that was added by nsMixedContentBlocker::ShouldLoad // Bug 1269815 will address images loaded via InternalLoad document->ClearHSTSPrimingLocation(aURI); return NS_ERROR_CONTENT_BLOCKED; } } } nsCOMPtr<nsIPrincipal> principalToInherit = aPrincipalToInherit; // // Get a principal from the current document if necessary. Note that we only // do this for URIs that inherit a security context and local file URIs; // in particular we do NOT do this for about:blank. This way, random // about:blank loads that have no principal (which basically means they were // done by someone from chrome manually messing with our nsIWebNavigation // or by C++ setting document.location) don't get a funky principal. If // callers want something interesting to happen with the about:blank // principal in this case, they should pass aPrincipalToInherit in. // { bool inherits; // One more twist: Don't inherit the principal for external loads. if (aLoadType != LOAD_NORMAL_EXTERNAL && !principalToInherit && (aFlags & INTERNAL_LOAD_FLAGS_INHERIT_PRINCIPAL) && NS_SUCCEEDED(nsContentUtils::URIInheritsSecurityContext(aURI, &inherits)) && inherits) { principalToInherit = GetInheritedPrincipal(true); } } // Don't allow loads that would inherit our security context // if this document came from an unsafe channel. { bool willInherit; // This condition needs to match the one in // nsContentUtils::ChannelShouldInheritPrincipal. // Except we reverse the rv check to be safe in case // nsContentUtils::URIInheritsSecurityContext fails here and // succeeds there. rv = nsContentUtils::URIInheritsSecurityContext(aURI, &willInherit); if (NS_FAILED(rv) || willInherit || NS_IsAboutBlank(aURI)) { nsCOMPtr<nsIDocShellTreeItem> treeItem = this; do { nsCOMPtr<nsIDocShell> itemDocShell = do_QueryInterface(treeItem); bool isUnsafe; if (itemDocShell && NS_SUCCEEDED(itemDocShell->GetChannelIsUnsafe(&isUnsafe)) && isUnsafe) { return NS_ERROR_DOM_SECURITY_ERR; } nsCOMPtr<nsIDocShellTreeItem> parent; treeItem->GetSameTypeParent(getter_AddRefs(parent)); parent.swap(treeItem); } while (treeItem); } } // // Resolve the window target before going any further... // If the load has been targeted to another DocShell, then transfer the // load to it... // if (!aWindowTarget.IsEmpty()) { // We've already done our owner-inheriting. Mask out that bit, so we // don't try inheriting an owner from the target window if we came up // with a null owner above. aFlags = aFlags & ~INTERNAL_LOAD_FLAGS_INHERIT_PRINCIPAL; bool isNewWindow = false; if (!targetDocShell) { // If the docshell's document is sandboxed, only open a new window // if the document's SANDBOXED_AUXILLARY_NAVIGATION flag is not set. // (i.e. if allow-popups is specified) NS_ENSURE_TRUE(mContentViewer, NS_ERROR_FAILURE); nsIDocument* doc = mContentViewer->GetDocument(); uint32_t sandboxFlags = 0; if (doc) { sandboxFlags = doc->GetSandboxFlags(); if (sandboxFlags & SANDBOXED_AUXILIARY_NAVIGATION) { return NS_ERROR_DOM_INVALID_ACCESS_ERR; } } nsCOMPtr<nsPIDOMWindowOuter> win = GetWindow(); NS_ENSURE_TRUE(win, NS_ERROR_NOT_AVAILABLE); nsCOMPtr<nsPIDOMWindowOuter> newWin; nsAutoCString spec; if (aURI) { aURI->GetSpec(spec); } // If we are a noopener load, we just hand the whole thing over to our // window. if (aFlags & INTERNAL_LOAD_FLAGS_NO_OPENER) { // Various asserts that we know to hold because NO_OPENER loads can only // happen for links. MOZ_ASSERT(!aLoadReplace); MOZ_ASSERT(aPrincipalToInherit == aTriggeringPrincipal); MOZ_ASSERT(aFlags == INTERNAL_LOAD_FLAGS_NO_OPENER || aFlags == (INTERNAL_LOAD_FLAGS_NO_OPENER | INTERNAL_LOAD_FLAGS_DONT_SEND_REFERRER)); MOZ_ASSERT(!aPostData); MOZ_ASSERT(!aHeadersData); MOZ_ASSERT(aLoadType == LOAD_LINK); MOZ_ASSERT(!aSHEntry); MOZ_ASSERT(aFirstParty); // Windowwatcher will assume this. nsCOMPtr<nsIDocShellLoadInfo> loadInfo; rv = CreateLoadInfo(getter_AddRefs(loadInfo)); if (NS_FAILED(rv)) { return rv; } // Set up our loadinfo so it will do the load as much like we would have // as possible. loadInfo->SetReferrer(aReferrer); loadInfo->SetReferrerPolicy(aReferrerPolicy); loadInfo->SetSendReferrer(!(aFlags & INTERNAL_LOAD_FLAGS_DONT_SEND_REFERRER)); loadInfo->SetOriginalURI(aOriginalURI); loadInfo->SetLoadReplace(aLoadReplace); loadInfo->SetTriggeringPrincipal(aTriggeringPrincipal); loadInfo->SetInheritPrincipal( aFlags & INTERNAL_LOAD_FLAGS_INHERIT_PRINCIPAL); // Explicit principal because we do not want any guesses as to what the // principal to inherit is: it should be aTriggeringPrincipal. loadInfo->SetPrincipalIsExplicit(true); loadInfo->SetLoadType(ConvertLoadTypeToDocShellLoadInfo(LOAD_LINK)); rv = win->Open(NS_ConvertUTF8toUTF16(spec), aWindowTarget, // window name EmptyString(), // Features loadInfo, true, // aForceNoOpener getter_AddRefs(newWin)); MOZ_ASSERT(!newWin); return rv; } rv = win->OpenNoNavigate(NS_ConvertUTF8toUTF16(spec), aWindowTarget, // window name EmptyString(), // Features getter_AddRefs(newWin)); // In some cases the Open call doesn't actually result in a new // window being opened. We can detect these cases by examining the // document in |newWin|, if any. nsCOMPtr<nsPIDOMWindowOuter> piNewWin = do_QueryInterface(newWin); if (piNewWin) { nsCOMPtr<nsIDocument> newDoc = piNewWin->GetExtantDoc(); if (!newDoc || newDoc->IsInitialDocument()) { isNewWindow = true; aFlags |= INTERNAL_LOAD_FLAGS_FIRST_LOAD; } } nsCOMPtr<nsIWebNavigation> webNav = do_GetInterface(newWin); targetDocShell = do_QueryInterface(webNav); } // // Transfer the load to the target DocShell... Pass nullptr as the // window target name from to prevent recursive retargeting! // if (NS_SUCCEEDED(rv) && targetDocShell) { rv = targetDocShell->InternalLoad(aURI, aOriginalURI, aLoadReplace, aReferrer, aReferrerPolicy, aTriggeringPrincipal, principalToInherit, aFlags, EmptyString(), // No window target aTypeHint, NullString(), // No forced download aPostData, aHeadersData, aLoadType, aSHEntry, aFirstParty, aSrcdoc, aSourceDocShell, aBaseURI, aDocShell, aRequest); if (rv == NS_ERROR_NO_CONTENT) { // XXXbz except we never reach this code! if (isNewWindow) { // // At this point, a new window has been created, but the // URI did not have any data associated with it... // // So, the best we can do, is to tear down the new window // that was just created! // if (nsCOMPtr<nsPIDOMWindowOuter> domWin = targetDocShell->GetWindow()) { domWin->Close(); } } // // NS_ERROR_NO_CONTENT should not be returned to the // caller... This is an internal error code indicating that // the URI had no data associated with it - probably a // helper-app style protocol (ie. mailto://) // rv = NS_OK; } else if (isNewWindow) { // XXX: Once new windows are created hidden, the new // window will need to be made visible... For now, // do nothing. } } // Else we ran out of memory, or were a popup and got blocked, // or something. return rv; } // // Load is being targetted at this docshell so return an error if the // docshell is in the process of being destroyed. // if (mIsBeingDestroyed) { return NS_ERROR_FAILURE; } NS_ENSURE_STATE(!HasUnloadedParent()); rv = CheckLoadingPermissions(); if (NS_FAILED(rv)) { return rv; } if (mFiredUnloadEvent) { if (IsOKToLoadURI(aURI)) { NS_PRECONDITION(aWindowTarget.IsEmpty(), "Shouldn't have a window target here!"); // If this is a replace load, make whatever load triggered // the unload event also a replace load, so we don't // create extra history entries. if (LOAD_TYPE_HAS_FLAGS(aLoadType, LOAD_FLAGS_REPLACE_HISTORY)) { mLoadType = LOAD_NORMAL_REPLACE; } // Do this asynchronously nsCOMPtr<nsIRunnable> ev = new InternalLoadEvent(this, aURI, aOriginalURI, aLoadReplace, aReferrer, aReferrerPolicy, aTriggeringPrincipal, principalToInherit, aFlags, aTypeHint, aPostData, aHeadersData, aLoadType, aSHEntry, aFirstParty, aSrcdoc, aSourceDocShell, aBaseURI); return NS_DispatchToCurrentThread(ev); } // Just ignore this load attempt return NS_OK; } // If a source docshell has been passed, check to see if we are sandboxed // from it as the result of an iframe or CSP sandbox. if (aSourceDocShell && aSourceDocShell->IsSandboxedFrom(this)) { return NS_ERROR_DOM_INVALID_ACCESS_ERR; } // If this docshell is owned by a frameloader, make sure to cancel // possible frameloader initialization before loading a new page. nsCOMPtr<nsIDocShellTreeItem> parent = GetParentDocshell(); if (parent) { nsCOMPtr<nsIDocument> doc = parent->GetDocument(); if (doc) { doc->TryCancelFrameLoaderInitialization(this); } } // Before going any further vet loads initiated by external programs. if (aLoadType == LOAD_NORMAL_EXTERNAL) { // Disallow external chrome: loads targetted at content windows bool isChrome = false; if (NS_SUCCEEDED(aURI->SchemeIs("chrome", &isChrome)) && isChrome) { NS_WARNING("blocked external chrome: url -- use '--chrome' option"); return NS_ERROR_FAILURE; } // clear the decks to prevent context bleed-through (bug 298255) rv = CreateAboutBlankContentViewer(nullptr, nullptr); if (NS_FAILED(rv)) { return NS_ERROR_FAILURE; } // reset loadType so we don't have to add lots of tests for // LOAD_NORMAL_EXTERNAL after this point aLoadType = LOAD_NORMAL; } mAllowKeywordFixup = (aFlags & INTERNAL_LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP) != 0; mURIResultedInDocument = false; // reset the clock... if (aLoadType == LOAD_NORMAL || aLoadType == LOAD_STOP_CONTENT || LOAD_TYPE_HAS_FLAGS(aLoadType, LOAD_FLAGS_REPLACE_HISTORY) || aLoadType == LOAD_HISTORY || aLoadType == LOAD_LINK) { nsCOMPtr<nsIURI> currentURI = mCurrentURI; nsAutoCString curHash, newHash; bool curURIHasRef = false, newURIHasRef = false; nsresult rvURINew = aURI->GetRef(newHash); if (NS_SUCCEEDED(rvURINew)) { rvURINew = aURI->GetHasRef(&newURIHasRef); } bool sameExceptHashes = false; if (currentURI && NS_SUCCEEDED(rvURINew)) { nsresult rvURIOld = currentURI->GetRef(curHash); if (NS_SUCCEEDED(rvURIOld)) { rvURIOld = currentURI->GetHasRef(&curURIHasRef); } if (NS_SUCCEEDED(rvURIOld)) { if (NS_FAILED(currentURI->EqualsExceptRef(aURI, &sameExceptHashes))) { sameExceptHashes = false; } } } if (!sameExceptHashes && sURIFixup && currentURI && NS_SUCCEEDED(rvURINew)) { // Maybe aURI came from the exposable form of currentURI? nsCOMPtr<nsIURI> currentExposableURI; rv = sURIFixup->CreateExposableURI(currentURI, getter_AddRefs(currentExposableURI)); NS_ENSURE_SUCCESS(rv, rv); nsresult rvURIOld = currentExposableURI->GetRef(curHash); if (NS_SUCCEEDED(rvURIOld)) { rvURIOld = currentExposableURI->GetHasRef(&curURIHasRef); } if (NS_SUCCEEDED(rvURIOld)) { if (NS_FAILED(currentExposableURI->EqualsExceptRef(aURI, &sameExceptHashes))) { sameExceptHashes = false; } } } bool historyNavBetweenSameDoc = false; if (mOSHE && aSHEntry) { // We're doing a history load. mOSHE->SharesDocumentWith(aSHEntry, &historyNavBetweenSameDoc); #ifdef DEBUG if (historyNavBetweenSameDoc) { nsCOMPtr<nsIInputStream> currentPostData; mOSHE->GetPostData(getter_AddRefs(currentPostData)); NS_ASSERTION(currentPostData == aPostData, "Different POST data for entries for the same page?"); } #endif } // A short-circuited load happens when we navigate between two SHEntries // for the same document. We do a short-circuited load under two // circumstances. Either // // a) we're navigating between two different SHEntries which share a // document, or // // b) we're navigating to a new shentry whose URI differs from the // current URI only in its hash, the new hash is non-empty, and // we're not doing a POST. // // The restriction tha the SHEntries in (a) must be different ensures // that history.go(0) and the like trigger full refreshes, rather than // short-circuited loads. bool doShortCircuitedLoad = (historyNavBetweenSameDoc && mOSHE != aSHEntry) || (!aSHEntry && !aPostData && sameExceptHashes && newURIHasRef); if (doShortCircuitedLoad) { // Save the position of the scrollers. nscoord cx = 0, cy = 0; GetCurScrollPos(ScrollOrientation_X, &cx); GetCurScrollPos(ScrollOrientation_Y, &cy); // Reset mLoadType to its original value once we exit this block, // because this short-circuited load might have started after a // normal, network load, and we don't want to clobber its load type. // See bug 737307. AutoRestore<uint32_t> loadTypeResetter(mLoadType); // If a non-short-circuit load (i.e., a network load) is pending, // make this a replacement load, so that we don't add a SHEntry here // and the network load goes into the SHEntry it expects to. if (JustStartedNetworkLoad() && (aLoadType & LOAD_CMD_NORMAL)) { mLoadType = LOAD_NORMAL_REPLACE; } else { mLoadType = aLoadType; } mURIResultedInDocument = true; nsCOMPtr<nsISHEntry> oldLSHE = mLSHE; /* we need to assign mLSHE to aSHEntry right here, so that on History * loads, SetCurrentURI() called from OnNewURI() will send proper * onLocationChange() notifications to the browser to update * back/forward buttons. */ SetHistoryEntry(&mLSHE, aSHEntry); // Set the doc's URI according to the new history entry's URI. nsCOMPtr<nsIDocument> doc = GetDocument(); NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE); doc->SetDocumentURI(aURI); /* This is a anchor traversal with in the same page. * call OnNewURI() so that, this traversal will be * recorded in session and global history. */ nsCOMPtr<nsIPrincipal> triggeringPrincipal, principalToInherit; if (mOSHE) { mOSHE->GetTriggeringPrincipal(getter_AddRefs(triggeringPrincipal)); mOSHE->GetPrincipalToInherit(getter_AddRefs(principalToInherit)); } // Pass true for aCloneSHChildren, since we're not // changing documents here, so all of our subframes are // still relevant to the new session history entry. // // It also makes OnNewURI(...) set LOCATION_CHANGE_SAME_DOCUMENT // flag on firing onLocationChange(...). // Anyway, aCloneSHChildren param is simply reflecting // doShortCircuitedLoad in this scope. OnNewURI(aURI, nullptr, triggeringPrincipal, principalToInherit, mLoadType, true, true, true); nsCOMPtr<nsIInputStream> postData; nsCOMPtr<nsISupports> cacheKey; bool scrollRestorationIsManual = false; if (mOSHE) { /* save current position of scroller(s) (bug 59774) */ mOSHE->SetScrollPosition(cx, cy); mOSHE->GetScrollRestorationIsManual(&scrollRestorationIsManual); // Get the postdata and page ident from the current page, if // the new load is being done via normal means. Note that // "normal means" can be checked for just by checking for // LOAD_CMD_NORMAL, given the loadType and allowScroll check // above -- it filters out some LOAD_CMD_NORMAL cases that we // wouldn't want here. if (aLoadType & LOAD_CMD_NORMAL) { mOSHE->GetPostData(getter_AddRefs(postData)); mOSHE->GetCacheKey(getter_AddRefs(cacheKey)); // Link our new SHEntry to the old SHEntry's back/forward // cache data, since the two SHEntries correspond to the // same document. if (mLSHE) { if (!aSHEntry) { // If we're not doing a history load, scroll restoration // should be inherited from the previous session history entry. mLSHE->SetScrollRestorationIsManual(scrollRestorationIsManual); } mLSHE->AdoptBFCacheEntry(mOSHE); } } } // If we're doing a history load, use its scroll restoration state. if (aSHEntry) { aSHEntry->GetScrollRestorationIsManual(&scrollRestorationIsManual); } /* Assign mOSHE to mLSHE. This will either be a new entry created * by OnNewURI() for normal loads or aSHEntry for history loads. */ if (mLSHE) { SetHistoryEntry(&mOSHE, mLSHE); // Save the postData obtained from the previous page // in to the session history entry created for the // anchor page, so that any history load of the anchor // page will restore the appropriate postData. if (postData) { mOSHE->SetPostData(postData); } // Make sure we won't just repost without hitting the // cache first if (cacheKey) { mOSHE->SetCacheKey(cacheKey); } } /* Restore the original LSHE if we were loading something * while short-circuited load was initiated. */ SetHistoryEntry(&mLSHE, oldLSHE); /* Set the title for the SH entry for this target url. so that * SH menus in go/back/forward buttons won't be empty for this. */ if (mSessionHistory) { int32_t index = -1; mSessionHistory->GetIndex(&index); nsCOMPtr<nsISHEntry> shEntry; mSessionHistory->GetEntryAtIndex(index, false, getter_AddRefs(shEntry)); NS_ENSURE_TRUE(shEntry, NS_ERROR_FAILURE); shEntry->SetTitle(mTitle); } /* Set the title for the Global History entry for this anchor url. */ if (mUseGlobalHistory && !UsePrivateBrowsing()) { nsCOMPtr<IHistory> history = services::GetHistoryService(); if (history) { history->SetURITitle(aURI, mTitle); } else if (mGlobalHistory) { mGlobalHistory->SetPageTitle(aURI, mTitle); } } SetDocCurrentStateObj(mOSHE); // Inform the favicon service that the favicon for oldURI also // applies to aURI. CopyFavicon(currentURI, aURI, doc->NodePrincipal(), UsePrivateBrowsing()); RefPtr<nsGlobalWindow> scriptGlobal = mScriptGlobal; RefPtr<nsGlobalWindow> win = scriptGlobal ? scriptGlobal->GetCurrentInnerWindowInternal() : nullptr; // ScrollToAnchor doesn't necessarily cause us to scroll the window; // the function decides whether a scroll is appropriate based on the // arguments it receives. But even if we don't end up scrolling, // ScrollToAnchor performs other important tasks, such as informing // the presShell that we have a new hash. See bug 680257. rv = ScrollToAnchor(curURIHasRef, newURIHasRef, newHash, aLoadType); NS_ENSURE_SUCCESS(rv, rv); /* restore previous position of scroller(s), if we're moving * back in history (bug 59774) */ nscoord bx = 0; nscoord by = 0; bool needsScrollPosUpdate = false; if (mOSHE && (aLoadType == LOAD_HISTORY || aLoadType == LOAD_RELOAD_NORMAL) && !scrollRestorationIsManual) { needsScrollPosUpdate = true; mOSHE->GetScrollPosition(&bx, &by); } // Dispatch the popstate and hashchange events, as appropriate. // // The event dispatch below can cause us to re-enter script and // destroy the docshell, nulling out mScriptGlobal. Hold a stack // reference to avoid null derefs. See bug 914521. if (win) { // Fire a hashchange event URIs differ, and only in their hashes. bool doHashchange = sameExceptHashes && (curURIHasRef != newURIHasRef || !curHash.Equals(newHash)); if (historyNavBetweenSameDoc || doHashchange) { win->DispatchSyncPopState(); } if (needsScrollPosUpdate && win->AsInner()->HasActiveDocument()) { SetCurScrollPosEx(bx, by); } if (doHashchange) { // Note that currentURI hasn't changed because it's on the // stack, so we can just use it directly as the old URI. win->DispatchAsyncHashchange(currentURI, aURI); } } return NS_OK; } } // mContentViewer->PermitUnload can destroy |this| docShell, which // causes the next call of CanSavePresentation to crash. // Hold onto |this| until we return, to prevent a crash from happening. // (bug#331040) nsCOMPtr<nsIDocShell> kungFuDeathGrip(this); // Don't init timing for javascript:, since it generally doesn't // actually start a load or anything. If it does, we'll init // timing then, from OnStateChange. // XXXbz mTiming should know what channel it's for, so we don't // need this hackery. Note that this is still broken in cases // when we're loading something that's not javascript: and the // beforeunload handler denies the load. That will screw up // timing for the next load! if (!isJavaScript) { MaybeInitTiming(); } bool timeBeforeUnload = aFileName.IsVoid(); if (mTiming && timeBeforeUnload) { mTiming->NotifyBeforeUnload(); } // Check if the page doesn't want to be unloaded. The javascript: // protocol handler deals with this for javascript: URLs. if (!isJavaScript && aFileName.IsVoid() && mContentViewer) { bool okToUnload; rv = mContentViewer->PermitUnload(&okToUnload); if (NS_SUCCEEDED(rv) && !okToUnload) { // The user chose not to unload the page, interrupt the // load. return NS_OK; } } if (mTiming && timeBeforeUnload) { mTiming->NotifyUnloadAccepted(mCurrentURI); } // Check if the webbrowser chrome wants the load to proceed; this can be // used to cancel attempts to load URIs in the wrong process. nsCOMPtr<nsIWebBrowserChrome3> browserChrome3 = do_GetInterface(mTreeOwner); if (browserChrome3) { // In case this is a remote newtab load, set aURI to aOriginalURI (newtab). // This ensures that the verifySignedContent flag is set on loadInfo in // DoURILoad. nsIURI* uriForShouldLoadCheck = aURI; if (IsAboutNewtab(aOriginalURI)) { uriForShouldLoadCheck = aOriginalURI; } bool shouldLoad; rv = browserChrome3->ShouldLoadURI(this, uriForShouldLoadCheck, aReferrer, &shouldLoad); if (NS_SUCCEEDED(rv) && !shouldLoad) { return NS_OK; } } // Whenever a top-level browsing context is navigated, the user agent MUST // lock the orientation of the document to the document's default // orientation. We don't explicitly check for a top-level browsing context // here because orientation is only set on top-level browsing contexts. // We make an exception for apps because they currently rely on // orientation locks persisting across browsing contexts. if (OrientationLock() != eScreenOrientation_None && !GetIsApp()) { #ifdef DEBUG nsCOMPtr<nsIDocShellTreeItem> parent; GetSameTypeParent(getter_AddRefs(parent)); MOZ_ASSERT(!parent); #endif SetOrientationLock(eScreenOrientation_None); if (mIsActive) { ScreenOrientation::UpdateActiveOrientationLock(eScreenOrientation_None); } } // Check for saving the presentation here, before calling Stop(). // This is necessary so that we can catch any pending requests. // Since the new request has not been created yet, we pass null for the // new request parameter. // Also pass nullptr for the document, since it doesn't affect the return // value for our purposes here. bool savePresentation = CanSavePresentation(aLoadType, nullptr, nullptr); // Don't stop current network activity for javascript: URL's since // they might not result in any data, and thus nothing should be // stopped in those cases. In the case where they do result in // data, the javascript: URL channel takes care of stopping // current network activity. if (!isJavaScript && aFileName.IsVoid()) { // Stop any current network activity. // Also stop content if this is a zombie doc. otherwise // the onload will be delayed by other loads initiated in the // background by the first document that // didn't fully load before the next load was initiated. // If not a zombie, don't stop content until data // starts arriving from the new URI... nsCOMPtr<nsIContentViewer> zombieViewer; if (mContentViewer) { mContentViewer->GetPreviousViewer(getter_AddRefs(zombieViewer)); } if (zombieViewer || LOAD_TYPE_HAS_FLAGS(aLoadType, LOAD_FLAGS_STOP_CONTENT)) { rv = Stop(nsIWebNavigation::STOP_ALL); } else { rv = Stop(nsIWebNavigation::STOP_NETWORK); } if (NS_FAILED(rv)) { return rv; } } mLoadType = aLoadType; // mLSHE should be assigned to aSHEntry, only after Stop() has // been called. But when loading an error page, do not clear the // mLSHE for the real page. if (mLoadType != LOAD_ERROR_PAGE) { SetHistoryEntry(&mLSHE, aSHEntry); } mSavingOldViewer = savePresentation; // If we have a saved content viewer in history, restore and show it now. if (aSHEntry && (mLoadType & LOAD_CMD_HISTORY)) { // Make sure our history ID points to the same ID as // SHEntry's docshell ID. aSHEntry->GetDocshellID(&mHistoryID); // It's possible that the previous viewer of mContentViewer is the // viewer that will end up in aSHEntry when it gets closed. If that's // the case, we need to go ahead and force it into its shentry so we // can restore it. if (mContentViewer) { nsCOMPtr<nsIContentViewer> prevViewer; mContentViewer->GetPreviousViewer(getter_AddRefs(prevViewer)); if (prevViewer) { #ifdef DEBUG nsCOMPtr<nsIContentViewer> prevPrevViewer; prevViewer->GetPreviousViewer(getter_AddRefs(prevPrevViewer)); NS_ASSERTION(!prevPrevViewer, "Should never have viewer chain here"); #endif nsCOMPtr<nsISHEntry> viewerEntry; prevViewer->GetHistoryEntry(getter_AddRefs(viewerEntry)); if (viewerEntry == aSHEntry) { // Make sure this viewer ends up in the right place mContentViewer->SetPreviousViewer(nullptr); prevViewer->Destroy(); } } } nsCOMPtr<nsISHEntry> oldEntry = mOSHE; bool restoring; rv = RestorePresentation(aSHEntry, &restoring); if (restoring) { return rv; } // We failed to restore the presentation, so clean up. // Both the old and new history entries could potentially be in // an inconsistent state. if (NS_FAILED(rv)) { if (oldEntry) { oldEntry->SyncPresentationState(); } aSHEntry->SyncPresentationState(); } } nsAutoString srcdoc; if (aFlags & INTERNAL_LOAD_FLAGS_IS_SRCDOC) { srcdoc = aSrcdoc; } else { srcdoc = NullString(); } net::PredictorLearn(aURI, nullptr, nsINetworkPredictor::LEARN_LOAD_TOPLEVEL, this); net::PredictorPredict(aURI, nullptr, nsINetworkPredictor::PREDICT_LOAD, this, nullptr); nsCOMPtr<nsIRequest> req; rv = DoURILoad(aURI, aOriginalURI, aLoadReplace, aReferrer, !(aFlags & INTERNAL_LOAD_FLAGS_DONT_SEND_REFERRER), aReferrerPolicy, aTriggeringPrincipal, principalToInherit, aTypeHint, aFileName, aPostData, aHeadersData, aFirstParty, aDocShell, getter_AddRefs(req), (aFlags & INTERNAL_LOAD_FLAGS_FIRST_LOAD) != 0, (aFlags & INTERNAL_LOAD_FLAGS_BYPASS_CLASSIFIER) != 0, (aFlags & INTERNAL_LOAD_FLAGS_FORCE_ALLOW_COOKIES) != 0, srcdoc, aBaseURI, contentType); if (req && aRequest) { NS_ADDREF(*aRequest = req); } if (NS_FAILED(rv)) { nsCOMPtr<nsIChannel> chan(do_QueryInterface(req)); if (DisplayLoadError(rv, aURI, nullptr, chan) && (aFlags & LOAD_FLAGS_ERROR_LOAD_CHANGES_RV) != 0) { return NS_ERROR_LOAD_SHOWED_ERRORPAGE; } } return rv; } nsIPrincipal* nsDocShell::GetInheritedPrincipal(bool aConsiderCurrentDocument) { nsCOMPtr<nsIDocument> document; bool inheritedFromCurrent = false; if (aConsiderCurrentDocument && mContentViewer) { document = mContentViewer->GetDocument(); inheritedFromCurrent = true; } if (!document) { nsCOMPtr<nsIDocShellTreeItem> parentItem; GetSameTypeParent(getter_AddRefs(parentItem)); if (parentItem) { document = parentItem->GetDocument(); } } if (!document) { if (!aConsiderCurrentDocument) { return nullptr; } // Make sure we end up with _something_ as the principal no matter // what.If this fails, we'll just get a null docViewer and bail. EnsureContentViewer(); if (!mContentViewer) { return nullptr; } document = mContentViewer->GetDocument(); } //-- Get the document's principal if (document) { nsIPrincipal* docPrincipal = document->NodePrincipal(); // Don't allow loads in typeContent docShells to inherit the system // principal from existing documents. if (inheritedFromCurrent && mItemType == typeContent && nsContentUtils::IsSystemPrincipal(docPrincipal)) { return nullptr; } return docPrincipal; } return nullptr; } nsresult nsDocShell::DoURILoad(nsIURI* aURI, nsIURI* aOriginalURI, bool aLoadReplace, nsIURI* aReferrerURI, bool aSendReferrer, uint32_t aReferrerPolicy, nsIPrincipal* aTriggeringPrincipal, nsIPrincipal* aPrincipalToInherit, const char* aTypeHint, const nsAString& aFileName, nsIInputStream* aPostData, nsIInputStream* aHeadersData, bool aFirstParty, nsIDocShell** aDocShell, nsIRequest** aRequest, bool aIsNewWindowTarget, bool aBypassClassifier, bool aForceAllowCookies, const nsAString& aSrcdoc, nsIURI* aBaseURI, nsContentPolicyType aContentPolicyType) { // Double-check that we're still around to load this URI. if (mIsBeingDestroyed) { // Return NS_OK despite not doing anything to avoid throwing exceptions from // nsLocation::SetHref if the unload handler of the existing page tears us // down. return NS_OK; } nsresult rv; nsCOMPtr<nsIURILoader> uriLoader = do_GetService(NS_URI_LOADER_CONTRACTID, &rv); if (NS_FAILED(rv)) { return rv; } if (IsFrame()) { MOZ_ASSERT(aContentPolicyType == nsIContentPolicy::TYPE_INTERNAL_IFRAME || aContentPolicyType == nsIContentPolicy::TYPE_INTERNAL_FRAME, "DoURILoad thinks this is a frame and InternalLoad does not"); // Only allow view-source scheme in top-level docshells. view-source is // the only scheme to which this applies at the moment due to potential // timing attacks to read data from cross-origin iframes. If this widens // we should add a protocol flag for whether the scheme is allowed in // frames and use something like nsNetUtil::NS_URIChainHasFlags. nsCOMPtr<nsIURI> tempURI = aURI; nsCOMPtr<nsINestedURI> nestedURI = do_QueryInterface(tempURI); while (nestedURI) { // view-source should always be an nsINestedURI, loop and check the // scheme on this and all inner URIs that are also nested URIs. bool isViewSource = false; rv = tempURI->SchemeIs("view-source", &isViewSource); if (NS_FAILED(rv) || isViewSource) { return NS_ERROR_UNKNOWN_PROTOCOL; } nestedURI->GetInnerURI(getter_AddRefs(tempURI)); nestedURI = do_QueryInterface(tempURI); } } else { MOZ_ASSERT(aContentPolicyType == nsIContentPolicy::TYPE_DOCUMENT, "DoURILoad thinks this is a document and InternalLoad does not"); } // open a channel for the url nsCOMPtr<nsIChannel> channel; bool isSrcdoc = !aSrcdoc.IsVoid(); // There are two cases we care about: // * Top-level load: In this case, loadingNode is null, but loadingWindow // is our mScriptGlobal. We pass null for loadingPrincipal in this case. // * Subframe load: loadingWindow is null, but loadingNode is the frame // element for the load. loadingPrincipal is the NodePrincipal of the frame // element. nsCOMPtr<nsINode> loadingNode; nsCOMPtr<nsPIDOMWindowOuter> loadingWindow; nsCOMPtr<nsIPrincipal> loadingPrincipal; if (aContentPolicyType == nsIContentPolicy::TYPE_DOCUMENT) { loadingNode = nullptr; loadingPrincipal = nullptr; loadingWindow = mScriptGlobal->AsOuter(); } else { loadingWindow = nullptr; loadingNode = mScriptGlobal->AsOuter()->GetFrameElementInternal(); if (loadingNode) { // If we have a loading node, then use that as our loadingPrincipal. loadingPrincipal = loadingNode->NodePrincipal(); } else { // If this isn't a top-level load and mScriptGlobal's frame element is // null, then the element got removed from the DOM while we were trying // to load this resource. This docshell is scheduled for destruction // already, so bail out here. return NS_OK; } } // Getting the right triggeringPrincipal needs to be updated and is only // ready for use once bug 1182569 landed. Until then, we cannot rely on // the triggeringPrincipal for TYPE_DOCUMENT loads. MOZ_ASSERT(aTriggeringPrincipal, "Need a valid triggeringPrincipal"); bool isSandBoxed = mSandboxFlags & SANDBOXED_ORIGIN; // only inherit if we have a aPrincipalToInherit bool inherit = false; if (aPrincipalToInherit) { inherit = nsContentUtils::ChannelShouldInheritPrincipal( aPrincipalToInherit, aURI, true, // aInheritForAboutBlank isSrcdoc); } nsLoadFlags loadFlags = mDefaultLoadFlags; nsSecurityFlags securityFlags = nsILoadInfo::SEC_NORMAL; if (aFirstParty) { // tag first party URL loads loadFlags |= nsIChannel::LOAD_INITIAL_DOCUMENT_URI; } if (mLoadType == LOAD_ERROR_PAGE) { // Error pages are LOAD_BACKGROUND loadFlags |= nsIChannel::LOAD_BACKGROUND; securityFlags |= nsILoadInfo::SEC_LOAD_ERROR_PAGE; } if (inherit) { securityFlags |= nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL; } if (isSandBoxed) { securityFlags |= nsILoadInfo::SEC_SANDBOXED; } nsCOMPtr<nsILoadInfo> loadInfo = (aContentPolicyType == nsIContentPolicy::TYPE_DOCUMENT) ? new LoadInfo(loadingWindow, aTriggeringPrincipal, securityFlags) : new LoadInfo(loadingPrincipal, aTriggeringPrincipal, loadingNode, securityFlags, aContentPolicyType); if (aPrincipalToInherit) { loadInfo->SetPrincipalToInherit(aPrincipalToInherit); } // We have to do this in case our OriginAttributes are different from the // OriginAttributes of the parent document. Or in case there isn't a // parent document. NeckoOriginAttributes neckoAttrs; bool isTopLevelDoc = aContentPolicyType == nsIContentPolicy::TYPE_DOCUMENT && mItemType == typeContent && !GetIsMozBrowserOrApp(); neckoAttrs.InheritFromDocShellToNecko(GetOriginAttributes(), isTopLevelDoc, aURI); rv = loadInfo->SetOriginAttributes(neckoAttrs); if (NS_WARN_IF(NS_FAILED(rv))) { return rv; } if (!isSrcdoc) { rv = NS_NewChannelInternal(getter_AddRefs(channel), aURI, loadInfo, nullptr, // loadGroup static_cast<nsIInterfaceRequestor*>(this), loadFlags); if (NS_FAILED(rv)) { if (rv == NS_ERROR_UNKNOWN_PROTOCOL) { // This is a uri with a protocol scheme we don't know how // to handle. Embedders might still be interested in // handling the load, though, so we fire a notification // before throwing the load away. bool abort = false; nsresult rv2 = mContentListener->OnStartURIOpen(aURI, &abort); if (NS_SUCCEEDED(rv2) && abort) { // Hey, they're handling the load for us! How convenient! return NS_OK; } } return rv; } if (aBaseURI) { nsCOMPtr<nsIViewSourceChannel> vsc = do_QueryInterface(channel); if (vsc) { vsc->SetBaseURI(aBaseURI); } } } else { nsAutoCString scheme; rv = aURI->GetScheme(scheme); NS_ENSURE_SUCCESS(rv, rv); bool isViewSource; aURI->SchemeIs("view-source", &isViewSource); if (isViewSource) { nsViewSourceHandler* vsh = nsViewSourceHandler::GetInstance(); NS_ENSURE_TRUE(vsh, NS_ERROR_FAILURE); rv = vsh->NewSrcdocChannel(aURI, aBaseURI, aSrcdoc, loadInfo, getter_AddRefs(channel)); } else { rv = NS_NewInputStreamChannelInternal(getter_AddRefs(channel), aURI, aSrcdoc, NS_LITERAL_CSTRING("text/html"), loadInfo, true); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr<nsIInputStreamChannel> isc = do_QueryInterface(channel); MOZ_ASSERT(isc); isc->SetBaseURI(aBaseURI); } } // Navigational requests that are same origin need to be upgraded in case // upgrade-insecure-requests is present. Please note that in that case // the triggeringPrincipal is holding the CSP that potentially // holds upgrade-insecure-requests. nsCOMPtr<nsIContentSecurityPolicy> csp; aTriggeringPrincipal->GetCsp(getter_AddRefs(csp)); if (csp) { bool upgradeInsecureRequests = false; csp->GetUpgradeInsecureRequests(&upgradeInsecureRequests); if (upgradeInsecureRequests) { // only upgrade if the navigation is same origin nsCOMPtr<nsIPrincipal> resultPrincipal; rv = nsContentUtils::GetSecurityManager()-> GetChannelResultPrincipal(channel, getter_AddRefs(resultPrincipal)); NS_ENSURE_SUCCESS(rv, rv); if (resultPrincipal->Equals(aTriggeringPrincipal)) { static_cast<mozilla::LoadInfo*>(loadInfo.get())->SetUpgradeInsecureRequests(); } } } nsCOMPtr<nsIApplicationCacheChannel> appCacheChannel = do_QueryInterface(channel); if (appCacheChannel) { // Any document load should not inherit application cache. appCacheChannel->SetInheritApplicationCache(false); // Loads with the correct permissions should check for a matching // application cache. if (GeckoProcessType_Default != XRE_GetProcessType()) { // Permission will be checked in the parent process appCacheChannel->SetChooseApplicationCache(true); } else { nsCOMPtr<nsIScriptSecurityManager> secMan = do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID); if (secMan) { nsCOMPtr<nsIPrincipal> principal; secMan->GetDocShellCodebasePrincipal(aURI, this, getter_AddRefs(principal)); appCacheChannel->SetChooseApplicationCache( NS_ShouldCheckAppCache(principal, UsePrivateBrowsing())); } } } // Make sure to give the caller a channel if we managed to create one // This is important for correct error page/session history interaction if (aRequest) { NS_ADDREF(*aRequest = channel); } if (aOriginalURI) { channel->SetOriginalURI(aOriginalURI); if (aLoadReplace) { uint32_t loadFlags; channel->GetLoadFlags(&loadFlags); NS_ENSURE_SUCCESS(rv, rv); channel->SetLoadFlags(loadFlags | nsIChannel::LOAD_REPLACE); } } else { channel->SetOriginalURI(aURI); } if (aTypeHint && *aTypeHint) { channel->SetContentType(nsDependentCString(aTypeHint)); mContentTypeHint = aTypeHint; } else { mContentTypeHint.Truncate(); } if (!aFileName.IsVoid()) { rv = channel->SetContentDisposition(nsIChannel::DISPOSITION_ATTACHMENT); NS_ENSURE_SUCCESS(rv, rv); if (!aFileName.IsEmpty()) { rv = channel->SetContentDispositionFilename(aFileName); NS_ENSURE_SUCCESS(rv, rv); } } if (mLoadType == LOAD_NORMAL_ALLOW_MIXED_CONTENT || mLoadType == LOAD_RELOAD_ALLOW_MIXED_CONTENT) { rv = SetMixedContentChannel(channel); NS_ENSURE_SUCCESS(rv, rv); } else if (mMixedContentChannel) { /* * If the user "Disables Protection on This Page", we call * SetMixedContentChannel for the first time, otherwise * mMixedContentChannel is still null. * Later, if the new channel passes a same orign check, we remember the * users decision by calling SetMixedContentChannel using the new channel. * This way, the user does not have to click the disable protection button * over and over for browsing the same site. */ rv = nsContentUtils::CheckSameOrigin(mMixedContentChannel, channel); if (NS_FAILED(rv) || NS_FAILED(SetMixedContentChannel(channel))) { SetMixedContentChannel(nullptr); } } // hack nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel)); nsCOMPtr<nsIHttpChannelInternal> httpChannelInternal( do_QueryInterface(channel)); if (httpChannelInternal) { if (aForceAllowCookies) { httpChannelInternal->SetThirdPartyFlags( nsIHttpChannelInternal::THIRD_PARTY_FORCE_ALLOW); } if (aFirstParty) { httpChannelInternal->SetDocumentURI(aURI); } else { httpChannelInternal->SetDocumentURI(aReferrerURI); } httpChannelInternal->SetRedirectMode( nsIHttpChannelInternal::REDIRECT_MODE_MANUAL); } nsCOMPtr<nsIWritablePropertyBag2> props(do_QueryInterface(channel)); if (props) { // save true referrer for those who need it (e.g. xpinstall whitelisting) // Currently only http and ftp channels support this. props->SetPropertyAsInterface(NS_LITERAL_STRING("docshell.internalReferrer"), aReferrerURI); } nsCOMPtr<nsICacheInfoChannel> cacheChannel(do_QueryInterface(channel)); /* Get the cache Key from SH */ nsCOMPtr<nsISupports> cacheKey; if (cacheChannel) { if (mLSHE) { mLSHE->GetCacheKey(getter_AddRefs(cacheKey)); } else if (mOSHE) { // for reload cases mOSHE->GetCacheKey(getter_AddRefs(cacheKey)); } } // figure out if we need to set the post data stream on the channel... if (aPostData) { nsCOMPtr<nsIFormPOSTActionChannel> postChannel(do_QueryInterface(channel)); if (postChannel) { // XXX it's a bit of a hack to rewind the postdata stream here but // it has to be done in case the post data is being reused multiple // times. nsCOMPtr<nsISeekableStream> postDataSeekable = do_QueryInterface(aPostData); if (postDataSeekable) { rv = postDataSeekable->Seek(nsISeekableStream::NS_SEEK_SET, 0); NS_ENSURE_SUCCESS(rv, rv); } // we really need to have a content type associated with this stream!! postChannel->SetUploadStream(aPostData, EmptyCString(), -1); } /* If there is a valid postdata *and* it is a History Load, * set up the cache key on the channel, to retrieve the * data *only* from the cache. If it is a normal reload, the * cache is free to go to the server for updated postdata. */ if (cacheChannel && cacheKey) { if (mLoadType == LOAD_HISTORY || mLoadType == LOAD_RELOAD_CHARSET_CHANGE) { cacheChannel->SetCacheKey(cacheKey); uint32_t loadFlags; if (NS_SUCCEEDED(channel->GetLoadFlags(&loadFlags))) { channel->SetLoadFlags( loadFlags | nsICachingChannel::LOAD_ONLY_FROM_CACHE); } } else if (mLoadType == LOAD_RELOAD_NORMAL) { cacheChannel->SetCacheKey(cacheKey); } } } else { /* If there is no postdata, set the cache key on the channel, and * do not set the LOAD_ONLY_FROM_CACHE flag, so that the channel * will be free to get it from net if it is not found in cache. * New cache may use it creatively on CGI pages with GET * method and even on those that say "no-cache" */ if (mLoadType == LOAD_HISTORY || mLoadType == LOAD_RELOAD_NORMAL || mLoadType == LOAD_RELOAD_CHARSET_CHANGE) { if (cacheChannel && cacheKey) { cacheChannel->SetCacheKey(cacheKey); } } } if (httpChannel) { if (aHeadersData) { rv = AddHeadersToChannel(aHeadersData, httpChannel); } // Set the referrer explicitly if (aReferrerURI && aSendReferrer) { // Referrer is currenly only set for link clicks here. httpChannel->SetReferrerWithPolicy(aReferrerURI, aReferrerPolicy); } // set Content-Signature enforcing bit if aOriginalURI == about:newtab if (aOriginalURI && httpChannel) { if (IsAboutNewtab(aOriginalURI)) { nsCOMPtr<nsILoadInfo> loadInfo = httpChannel->GetLoadInfo(); if (loadInfo) { loadInfo->SetVerifySignedContent(true); } } } } nsCOMPtr<nsIScriptChannel> scriptChannel = do_QueryInterface(channel); if (scriptChannel) { // Allow execution against our context if the principals match scriptChannel->SetExecutionPolicy(nsIScriptChannel::EXECUTE_NORMAL); } if (aIsNewWindowTarget) { nsCOMPtr<nsIWritablePropertyBag2> props = do_QueryInterface(channel); if (props) { props->SetPropertyAsBool(NS_LITERAL_STRING("docshell.newWindowTarget"), true); } } nsCOMPtr<nsITimedChannel> timedChannel(do_QueryInterface(channel)); if (timedChannel) { timedChannel->SetTimingEnabled(true); nsCOMPtr<nsPIDOMWindowOuter> win = GetWindow(); if (IsFrame() && win) { nsCOMPtr<Element> frameElement = win->GetFrameElementInternal(); if (frameElement) { timedChannel->SetInitiatorType(frameElement->LocalName()); } } } rv = DoChannelLoad(channel, uriLoader, aBypassClassifier); // // If the channel load failed, we failed and nsIWebProgress just ain't // gonna happen. // if (NS_SUCCEEDED(rv)) { if (aDocShell) { *aDocShell = this; NS_ADDREF(*aDocShell); } } return rv; } static nsresult AppendSegmentToString(nsIInputStream* aIn, void* aClosure, const char* aFromRawSegment, uint32_t aToOffset, uint32_t aCount, uint32_t* aWriteCount) { // aFromSegment now contains aCount bytes of data. nsAutoCString* buf = static_cast<nsAutoCString*>(aClosure); buf->Append(aFromRawSegment, aCount); // Indicate that we have consumed all of aFromSegment *aWriteCount = aCount; return NS_OK; } nsresult nsDocShell::AddHeadersToChannel(nsIInputStream* aHeadersData, nsIChannel* aGenericChannel) { nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(aGenericChannel); NS_ENSURE_STATE(httpChannel); uint32_t numRead; nsAutoCString headersString; nsresult rv = aHeadersData->ReadSegments(AppendSegmentToString, &headersString, UINT32_MAX, &numRead); NS_ENSURE_SUCCESS(rv, rv); // used during the manipulation of the String from the InputStream nsAutoCString headerName; nsAutoCString headerValue; int32_t crlf; int32_t colon; // // Iterate over the headersString: for each "\r\n" delimited chunk, // add the value as a header to the nsIHttpChannel // static const char kWhitespace[] = "\b\t\r\n "; while (true) { crlf = headersString.Find("\r\n"); if (crlf == kNotFound) { return NS_OK; } const nsCSubstring& oneHeader = StringHead(headersString, crlf); colon = oneHeader.FindChar(':'); if (colon == kNotFound) { return NS_ERROR_UNEXPECTED; } headerName = StringHead(oneHeader, colon); headerValue = Substring(oneHeader, colon + 1); headerName.Trim(kWhitespace); headerValue.Trim(kWhitespace); headersString.Cut(0, crlf + 2); // // FINALLY: we can set the header! // rv = httpChannel->SetRequestHeader(headerName, headerValue, true); NS_ENSURE_SUCCESS(rv, rv); } NS_NOTREACHED("oops"); return NS_ERROR_UNEXPECTED; } nsresult nsDocShell::DoChannelLoad(nsIChannel* aChannel, nsIURILoader* aURILoader, bool aBypassClassifier) { nsresult rv; // Mark the channel as being a document URI and allow content sniffing... nsLoadFlags loadFlags = 0; (void)aChannel->GetLoadFlags(&loadFlags); loadFlags |= nsIChannel::LOAD_DOCUMENT_URI | nsIChannel::LOAD_CALL_CONTENT_SNIFFERS; // Load attributes depend on load type... switch (mLoadType) { case LOAD_HISTORY: { // Only send VALIDATE_NEVER if mLSHE's URI was never changed via // push/replaceState (bug 669671). bool uriModified = false; if (mLSHE) { mLSHE->GetURIWasModified(&uriModified); } if (!uriModified) { loadFlags |= nsIRequest::VALIDATE_NEVER; } break; } case LOAD_RELOAD_CHARSET_CHANGE: { // Use SetAllowStaleCacheContent (not LOAD_FROM_CACHE flag) since we only want // to force cache load for this channel, not the whole loadGroup. nsCOMPtr<nsICacheInfoChannel> cachingChannel = do_QueryInterface(aChannel); if (cachingChannel) { cachingChannel->SetAllowStaleCacheContent(true); } break; } case LOAD_RELOAD_NORMAL: case LOAD_REFRESH: loadFlags |= nsIRequest::VALIDATE_ALWAYS; break; case LOAD_NORMAL_BYPASS_CACHE: case LOAD_NORMAL_BYPASS_PROXY: case LOAD_NORMAL_BYPASS_PROXY_AND_CACHE: case LOAD_NORMAL_ALLOW_MIXED_CONTENT: case LOAD_RELOAD_BYPASS_CACHE: case LOAD_RELOAD_BYPASS_PROXY: case LOAD_RELOAD_BYPASS_PROXY_AND_CACHE: case LOAD_RELOAD_ALLOW_MIXED_CONTENT: case LOAD_REPLACE_BYPASS_CACHE: loadFlags |= nsIRequest::LOAD_BYPASS_CACHE | nsIRequest::LOAD_FRESH_CONNECTION; break; case LOAD_NORMAL: case LOAD_LINK: // Set cache checking flags switch (Preferences::GetInt("browser.cache.check_doc_frequency", -1)) { case 0: loadFlags |= nsIRequest::VALIDATE_ONCE_PER_SESSION; break; case 1: loadFlags |= nsIRequest::VALIDATE_ALWAYS; break; case 2: loadFlags |= nsIRequest::VALIDATE_NEVER; break; } break; } if (!aBypassClassifier) { loadFlags |= nsIChannel::LOAD_CLASSIFY_URI; } // If the user pressed shift-reload, then do not allow ServiceWorker // interception to occur. See step 12.1 of the SW HandleFetch algorithm. if (IsForceReloadType(mLoadType)) { loadFlags |= nsIChannel::LOAD_BYPASS_SERVICE_WORKER; } (void)aChannel->SetLoadFlags(loadFlags); uint32_t openFlags = 0; if (mLoadType == LOAD_LINK) { openFlags |= nsIURILoader::IS_CONTENT_PREFERRED; } if (!mAllowContentRetargeting) { openFlags |= nsIURILoader::DONT_RETARGET; } rv = aURILoader->OpenURI(aChannel, openFlags, this); NS_ENSURE_SUCCESS(rv, rv); return NS_OK; } nsresult nsDocShell::ScrollToAnchor(bool aCurHasRef, bool aNewHasRef, nsACString& aNewHash, uint32_t aLoadType) { if (!mCurrentURI) { return NS_OK; } nsCOMPtr<nsIPresShell> shell = GetPresShell(); if (!shell) { // If we failed to get the shell, or if there is no shell, // nothing left to do here. return NS_OK; } nsIScrollableFrame* rootScroll = shell->GetRootScrollFrameAsScrollable(); if (rootScroll) { rootScroll->ClearDidHistoryRestore(); } // If we have no new anchor, we do not want to scroll, unless there is a // current anchor and we are doing a history load. So return if we have no // new anchor, and there is no current anchor or the load is not a history // load. if ((!aCurHasRef || aLoadType != LOAD_HISTORY) && !aNewHasRef) { return NS_OK; } // Both the new and current URIs refer to the same page. We can now // browse to the hash stored in the new URI. if (!aNewHash.IsEmpty()) { // anchor is there, but if it's a load from history, // we don't have any anchor jumping to do bool scroll = aLoadType != LOAD_HISTORY && aLoadType != LOAD_RELOAD_NORMAL; char* str = ToNewCString(aNewHash); if (!str) { return NS_ERROR_OUT_OF_MEMORY; } // nsUnescape modifies the string that is passed into it. nsUnescape(str); // We assume that the bytes are in UTF-8, as it says in the // spec: // http://www.w3.org/TR/html4/appendix/notes.html#h-B.2.1 // We try the UTF-8 string first, and then try the document's // charset (see below). If the string is not UTF-8, // conversion will fail and give us an empty Unicode string. // In that case, we should just fall through to using the // page's charset. nsresult rv = NS_ERROR_FAILURE; NS_ConvertUTF8toUTF16 uStr(str); if (!uStr.IsEmpty()) { rv = shell->GoToAnchor(NS_ConvertUTF8toUTF16(str), scroll, nsIPresShell::SCROLL_SMOOTH_AUTO); } free(str); // Above will fail if the anchor name is not UTF-8. Need to // convert from document charset to unicode. if (NS_FAILED(rv)) { // Get a document charset NS_ENSURE_TRUE(mContentViewer, NS_ERROR_FAILURE); nsIDocument* doc = mContentViewer->GetDocument(); NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE); const nsACString& aCharset = doc->GetDocumentCharacterSet(); nsCOMPtr<nsITextToSubURI> textToSubURI = do_GetService(NS_ITEXTTOSUBURI_CONTRACTID, &rv); NS_ENSURE_SUCCESS(rv, rv); // Unescape and convert to unicode nsXPIDLString uStr; rv = textToSubURI->UnEscapeAndConvert(PromiseFlatCString(aCharset).get(), PromiseFlatCString(aNewHash).get(), getter_Copies(uStr)); NS_ENSURE_SUCCESS(rv, rv); // Ignore return value of GoToAnchor, since it will return an error // if there is no such anchor in the document, which is actually a // success condition for us (we want to update the session history // with the new URI no matter whether we actually scrolled // somewhere). // // When aNewHash contains "%00", unescaped string may be empty. // And GoToAnchor asserts if we ask it to scroll to an empty ref. shell->GoToAnchor(uStr, scroll && !uStr.IsEmpty(), nsIPresShell::SCROLL_SMOOTH_AUTO); } } else { // Tell the shell it's at an anchor, without scrolling. shell->GoToAnchor(EmptyString(), false); // An empty anchor was found, but if it's a load from history, // we don't have to jump to the top of the page. Scrollbar // position will be restored by the caller, based on positions // stored in session history. if (aLoadType == LOAD_HISTORY || aLoadType == LOAD_RELOAD_NORMAL) { return NS_OK; } // An empty anchor. Scroll to the top of the page. Ignore the // return value; failure to scroll here (e.g. if there is no // root scrollframe) is not grounds for canceling the load! SetCurScrollPosEx(0, 0); } return NS_OK; } void nsDocShell::SetupReferrerFromChannel(nsIChannel* aChannel) { nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(aChannel)); if (httpChannel) { nsCOMPtr<nsIURI> referrer; nsresult rv = httpChannel->GetReferrer(getter_AddRefs(referrer)); if (NS_SUCCEEDED(rv)) { SetReferrerURI(referrer); } uint32_t referrerPolicy; rv = httpChannel->GetReferrerPolicy(&referrerPolicy); if (NS_SUCCEEDED(rv)) { SetReferrerPolicy(referrerPolicy); } } } bool nsDocShell::OnNewURI(nsIURI* aURI, nsIChannel* aChannel, nsIPrincipal* aTriggeringPrincipal, nsIPrincipal* aPrincipalToInherit, uint32_t aLoadType, bool aFireOnLocationChange, bool aAddToGlobalHistory, bool aCloneSHChildren) { NS_PRECONDITION(aURI, "uri is null"); NS_PRECONDITION(!aChannel || !aTriggeringPrincipal, "Shouldn't have both set"); MOZ_ASSERT(!aPrincipalToInherit || (aPrincipalToInherit && aTriggeringPrincipal)); #if defined(DEBUG) if (MOZ_LOG_TEST(gDocShellLog, LogLevel::Debug)) { nsAutoCString chanName; if (aChannel) { aChannel->GetName(chanName); } else { chanName.AssignLiteral("<no channel>"); } MOZ_LOG(gDocShellLog, LogLevel::Debug, ("nsDocShell[%p]::OnNewURI(\"%s\", [%s], 0x%x)\n", this, aURI->GetSpecOrDefault().get(), chanName.get(), aLoadType)); } #endif bool equalUri = false; // Get the post data and the HTTP response code from the channel. uint32_t responseStatus = 0; nsCOMPtr<nsIInputStream> inputStream; if (aChannel) { nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(aChannel)); // Check if the HTTPChannel is hiding under a multiPartChannel if (!httpChannel) { GetHttpChannel(aChannel, getter_AddRefs(httpChannel)); } if (httpChannel) { nsCOMPtr<nsIUploadChannel> uploadChannel(do_QueryInterface(httpChannel)); if (uploadChannel) { uploadChannel->GetUploadStream(getter_AddRefs(inputStream)); } // If the response status indicates an error, unlink this session // history entry from any entries sharing its document. nsresult rv = httpChannel->GetResponseStatus(&responseStatus); if (mLSHE && NS_SUCCEEDED(rv) && responseStatus >= 400) { mLSHE->AbandonBFCacheEntry(); } } } // Determine if this type of load should update history. bool updateGHistory = !(aLoadType == LOAD_BYPASS_HISTORY || aLoadType == LOAD_ERROR_PAGE || aLoadType & LOAD_CMD_HISTORY); // We don't update session history on reload unless we're loading // an iframe in shift-reload case. bool updateSHistory = updateGHistory && (!(aLoadType & LOAD_CMD_RELOAD) || (IsForceReloadType(aLoadType) && IsFrame())); // Create SH Entry (mLSHE) only if there is a SessionHistory object in the // current frame or in the root docshell. nsCOMPtr<nsISHistory> rootSH = mSessionHistory; if (!rootSH) { // Get the handle to SH from the root docshell GetRootSessionHistory(getter_AddRefs(rootSH)); if (!rootSH) { updateSHistory = false; updateGHistory = false; // XXX Why global history too? } } // Check if the url to be loaded is the same as the one already loaded. if (mCurrentURI) { aURI->Equals(mCurrentURI, &equalUri); } #ifdef DEBUG bool shAvailable = (rootSH != nullptr); // XXX This log message is almost useless because |updateSHistory| // and |updateGHistory| are not correct at this point. MOZ_LOG(gDocShellLog, LogLevel::Debug, (" shAvailable=%i updateSHistory=%i updateGHistory=%i" " equalURI=%i\n", shAvailable, updateSHistory, updateGHistory, equalUri)); if (shAvailable && mCurrentURI && !mOSHE && aLoadType != LOAD_ERROR_PAGE) { NS_ASSERTION(NS_IsAboutBlank(mCurrentURI), "no SHEntry for a non-transient viewer?"); } #endif /* If the url to be loaded is the same as the one already there, * and the original loadType is LOAD_NORMAL, LOAD_LINK, or * LOAD_STOP_CONTENT, set loadType to LOAD_NORMAL_REPLACE so that * AddToSessionHistory() won't mess with the current SHEntry and * if this page has any frame children, it also will be handled * properly. see bug 83684 * * NB: If mOSHE is null but we have a current URI, then it means * that we must be at the transient about:blank content viewer * (asserted above) and we should let the normal load continue, * since there's nothing to replace. * * XXX Hopefully changing the loadType at this time will not hurt * anywhere. The other way to take care of sequentially repeating * frameset pages is to add new methods to nsIDocShellTreeItem. * Hopefully I don't have to do that. */ if (equalUri && mOSHE && (mLoadType == LOAD_NORMAL || mLoadType == LOAD_LINK || mLoadType == LOAD_STOP_CONTENT) && !inputStream) { mLoadType = LOAD_NORMAL_REPLACE; } // If this is a refresh to the currently loaded url, we don't // have to update session or global history. if (mLoadType == LOAD_REFRESH && !inputStream && equalUri) { SetHistoryEntry(&mLSHE, mOSHE); } /* If the user pressed shift-reload, cache will create a new cache key * for the page. Save the new cacheKey in Session History. * see bug 90098 */ if (aChannel && IsForceReloadType(aLoadType)) { MOZ_ASSERT(!updateSHistory || IsFrame(), "We shouldn't be updating session history for forced" " reloads unless we're in a newly created iframe!"); nsCOMPtr<nsICacheInfoChannel> cacheChannel(do_QueryInterface(aChannel)); nsCOMPtr<nsISupports> cacheKey; // Get the Cache Key and store it in SH. if (cacheChannel) { cacheChannel->GetCacheKey(getter_AddRefs(cacheKey)); } // If we already have a loading history entry, store the new cache key // in it. Otherwise, since we're doing a reload and won't be updating // our history entry, store the cache key in our current history entry. if (mLSHE) { mLSHE->SetCacheKey(cacheKey); } else if (mOSHE) { mOSHE->SetCacheKey(cacheKey); } // Since we're force-reloading, clear all the sub frame history. ClearFrameHistory(mLSHE); ClearFrameHistory(mOSHE); } if (aLoadType == LOAD_RELOAD_NORMAL) { nsCOMPtr<nsISHEntry> currentSH; bool oshe = false; GetCurrentSHEntry(getter_AddRefs(currentSH), &oshe); bool dynamicallyAddedChild = false; if (currentSH) { currentSH->HasDynamicallyAddedChild(&dynamicallyAddedChild); } if (dynamicallyAddedChild) { ClearFrameHistory(currentSH); } } if (aLoadType == LOAD_REFRESH) { ClearFrameHistory(mLSHE); ClearFrameHistory(mOSHE); } if (updateSHistory) { // Update session history if necessary... if (!mLSHE && (mItemType == typeContent) && mURIResultedInDocument) { /* This is a fresh page getting loaded for the first time *.Create a Entry for it and add it to SH, if this is the * rootDocShell */ (void)AddToSessionHistory(aURI, aChannel, aTriggeringPrincipal, aPrincipalToInherit, aCloneSHChildren, getter_AddRefs(mLSHE)); } } else if (mSessionHistory && mLSHE && mURIResultedInDocument) { // Even if we don't add anything to SHistory, ensure the current index // points to the same SHEntry as our mLSHE. int32_t index = 0; mSessionHistory->GetRequestedIndex(&index); if (index == -1) { mSessionHistory->GetIndex(&index); } nsCOMPtr<nsISHEntry> currentSH; mSessionHistory->GetEntryAtIndex(index, false, getter_AddRefs(currentSH)); if (currentSH != mLSHE) { nsCOMPtr<nsISHistoryInternal> shPrivate = do_QueryInterface(mSessionHistory); shPrivate->ReplaceEntry(index, mLSHE); } } // If this is a POST request, we do not want to include this in global // history. if (updateGHistory && aAddToGlobalHistory && !ChannelIsPost(aChannel)) { nsCOMPtr<nsIURI> previousURI; uint32_t previousFlags = 0; if (aLoadType & LOAD_CMD_RELOAD) { // On a reload request, we don't set redirecting flags. previousURI = aURI; } else { ExtractLastVisit(aChannel, getter_AddRefs(previousURI), &previousFlags); } // Note: We don't use |referrer| when our global history is // based on IHistory. nsCOMPtr<nsIURI> referrer; // Treat referrer as null if there is an error getting it. (void)NS_GetReferrerFromChannel(aChannel, getter_AddRefs(referrer)); AddURIVisit(aURI, referrer, previousURI, previousFlags, responseStatus); } // If this was a history load or a refresh, or it was a history load but // later changed to LOAD_NORMAL_REPLACE due to redirection, update the index // in session history. if (rootSH && ((mLoadType & (LOAD_CMD_HISTORY | LOAD_CMD_RELOAD)) || mLoadType == LOAD_NORMAL_REPLACE)) { nsCOMPtr<nsISHistoryInternal> shInternal(do_QueryInterface(rootSH)); if (shInternal) { rootSH->GetIndex(&mPreviousTransIndex); shInternal->UpdateIndex(); rootSH->GetIndex(&mLoadedTransIndex); #ifdef DEBUG_PAGE_CACHE printf("Previous index: %d, Loaded index: %d\n\n", mPreviousTransIndex, mLoadedTransIndex); #endif } } // aCloneSHChildren exactly means "we are not loading a new document". uint32_t locationFlags = aCloneSHChildren ? uint32_t(LOCATION_CHANGE_SAME_DOCUMENT) : 0; bool onLocationChangeNeeded = SetCurrentURI(aURI, aChannel, aFireOnLocationChange, locationFlags); // Make sure to store the referrer from the channel, if any SetupReferrerFromChannel(aChannel); return onLocationChangeNeeded; } bool nsDocShell::OnLoadingSite(nsIChannel* aChannel, bool aFireOnLocationChange, bool aAddToGlobalHistory) { nsCOMPtr<nsIURI> uri; // If this a redirect, use the final url (uri) // else use the original url // // Note that this should match what documents do (see nsDocument::Reset). NS_GetFinalChannelURI(aChannel, getter_AddRefs(uri)); NS_ENSURE_TRUE(uri, false); // Pass false for aCloneSHChildren, since we're loading a new page here. return OnNewURI(uri, aChannel, nullptr, nullptr, mLoadType, aFireOnLocationChange, aAddToGlobalHistory, false); } void nsDocShell::SetReferrerURI(nsIURI* aURI) { mReferrerURI = aURI; // This assigment addrefs } void nsDocShell::SetReferrerPolicy(uint32_t aReferrerPolicy) { mReferrerPolicy = aReferrerPolicy; } //***************************************************************************** // nsDocShell: Session History //***************************************************************************** NS_IMETHODIMP nsDocShell::AddState(JS::Handle<JS::Value> aData, const nsAString& aTitle, const nsAString& aURL, bool aReplace, JSContext* aCx) { // Implements History.pushState and History.replaceState // Here's what we do, roughly in the order specified by HTML5: // 1. Serialize aData using structured clone. // 2. If the third argument is present, // a. Resolve the url, relative to the first script's base URL // b. If (a) fails, raise a SECURITY_ERR // c. Compare the resulting absolute URL to the document's address. If // any part of the URLs difer other than the <path>, <query>, and // <fragment> components, raise a SECURITY_ERR and abort. // 3. If !aReplace: // Remove from the session history all entries after the current entry, // as we would after a regular navigation, and save the current // entry's scroll position (bug 590573). // 4. As apropriate, either add a state object entry to the session history // after the current entry with the following properties, or modify the // current session history entry to set // a. cloned data as the state object, // b. if the third argument was present, the absolute URL found in // step 2 // Also clear the new history entry's POST data (see bug 580069). // 5. If aReplace is false (i.e. we're doing a pushState instead of a // replaceState), notify bfcache that we've navigated to a new page. // 6. If the third argument is present, set the document's current address // to the absolute URL found in step 2. // // It's important that this function not run arbitrary scripts after step 1 // and before completing step 5. For example, if a script called // history.back() before we completed step 5, bfcache might destroy an // active content viewer. Since EvictOutOfRangeContentViewers at the end of // step 5 might run script, we can't just put a script blocker around the // critical section. // // Note that we completely ignore the aTitle parameter. nsresult rv; // Don't clobber the load type of an existing network load. AutoRestore<uint32_t> loadTypeResetter(mLoadType); // pushState effectively becomes replaceState when we've started a network // load but haven't adopted its document yet. This mirrors what we do with // changes to the hash at this stage of the game. if (JustStartedNetworkLoad()) { aReplace = true; } nsCOMPtr<nsIDocument> document = GetDocument(); NS_ENSURE_TRUE(document, NS_ERROR_FAILURE); // Step 1: Serialize aData using structured clone. nsCOMPtr<nsIStructuredCloneContainer> scContainer; // scContainer->Init might cause arbitrary JS to run, and this code might // navigate the page we're on, potentially to a different origin! (bug // 634834) To protect against this, we abort if our principal changes due // to the InitFromJSVal() call. { nsCOMPtr<nsIDocument> origDocument = GetDocument(); if (!origDocument) { return NS_ERROR_DOM_SECURITY_ERR; } nsCOMPtr<nsIPrincipal> origPrincipal = origDocument->NodePrincipal(); scContainer = new nsStructuredCloneContainer(); rv = scContainer->InitFromJSVal(aData, aCx); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr<nsIDocument> newDocument = GetDocument(); if (!newDocument) { return NS_ERROR_DOM_SECURITY_ERR; } nsCOMPtr<nsIPrincipal> newPrincipal = newDocument->NodePrincipal(); bool principalsEqual = false; origPrincipal->Equals(newPrincipal, &principalsEqual); NS_ENSURE_TRUE(principalsEqual, NS_ERROR_DOM_SECURITY_ERR); } // Check that the state object isn't too long. // Default max length: 640k bytes. int32_t maxStateObjSize = Preferences::GetInt("browser.history.maxStateObjectSize", 0xA0000); if (maxStateObjSize < 0) { maxStateObjSize = 0; } uint64_t scSize; rv = scContainer->GetSerializedNBytes(&scSize); NS_ENSURE_SUCCESS(rv, rv); NS_ENSURE_TRUE(scSize <= (uint32_t)maxStateObjSize, NS_ERROR_ILLEGAL_VALUE); // Step 2: Resolve aURL bool equalURIs = true; nsCOMPtr<nsIURI> currentURI; if (sURIFixup && mCurrentURI) { rv = sURIFixup->CreateExposableURI(mCurrentURI, getter_AddRefs(currentURI)); NS_ENSURE_SUCCESS(rv, rv); } else { currentURI = mCurrentURI; } nsCOMPtr<nsIURI> oldURI = currentURI; nsCOMPtr<nsIURI> newURI; if (aURL.Length() == 0) { newURI = currentURI; } else { // 2a: Resolve aURL relative to mURI nsIURI* docBaseURI = document->GetDocBaseURI(); if (!docBaseURI) { return NS_ERROR_FAILURE; } nsAutoCString spec; docBaseURI->GetSpec(spec); nsAutoCString charset; rv = docBaseURI->GetOriginCharset(charset); NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE); rv = NS_NewURI(getter_AddRefs(newURI), aURL, charset.get(), docBaseURI); // 2b: If 2a fails, raise a SECURITY_ERR if (NS_FAILED(rv)) { return NS_ERROR_DOM_SECURITY_ERR; } // 2c: Same-origin check. if (!nsContentUtils::URIIsLocalFile(newURI)) { // In addition to checking that the security manager says that // the new URI has the same origin as our current URI, we also // check that the two URIs have the same userpass. (The // security manager says that |http://foo.com| and // |http://me@foo.com| have the same origin.) currentURI // won't contain the password part of the userpass, so this // means that it's never valid to specify a password in a // pushState or replaceState URI. nsCOMPtr<nsIScriptSecurityManager> secMan = do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID); NS_ENSURE_TRUE(secMan, NS_ERROR_FAILURE); // It's very important that we check that newURI is of the same // origin as currentURI, not docBaseURI, because a page can // set docBaseURI arbitrarily to any domain. nsAutoCString currentUserPass, newUserPass; NS_ENSURE_SUCCESS(currentURI->GetUserPass(currentUserPass), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(newURI->GetUserPass(newUserPass), NS_ERROR_FAILURE); if (NS_FAILED(secMan->CheckSameOriginURI(currentURI, newURI, true)) || !currentUserPass.Equals(newUserPass)) { return NS_ERROR_DOM_SECURITY_ERR; } } else { // It's a file:// URI nsCOMPtr<nsIScriptObjectPrincipal> docScriptObj = do_QueryInterface(document); if (!docScriptObj) { return NS_ERROR_DOM_SECURITY_ERR; } nsCOMPtr<nsIPrincipal> principal = docScriptObj->GetPrincipal(); if (!principal || NS_FAILED(principal->CheckMayLoad(newURI, true, false))) { return NS_ERROR_DOM_SECURITY_ERR; } } if (currentURI) { currentURI->Equals(newURI, &equalURIs); } else { equalURIs = false; } } // end of same-origin check // Step 3: Create a new entry in the session history. This will erase // all SHEntries after the new entry and make this entry the current // one. This operation may modify mOSHE, which we need later, so we // keep a reference here. NS_ENSURE_TRUE(mOSHE, NS_ERROR_FAILURE); nsCOMPtr<nsISHEntry> oldOSHE = mOSHE; mLoadType = LOAD_PUSHSTATE; nsCOMPtr<nsISHEntry> newSHEntry; if (!aReplace) { // Save the current scroll position (bug 590573). nscoord cx = 0, cy = 0; GetCurScrollPos(ScrollOrientation_X, &cx); GetCurScrollPos(ScrollOrientation_Y, &cy); mOSHE->SetScrollPosition(cx, cy); bool scrollRestorationIsManual = false; mOSHE->GetScrollRestorationIsManual(&scrollRestorationIsManual); // Since we're not changing which page we have loaded, pass // true for aCloneChildren. rv = AddToSessionHistory(newURI, nullptr, nullptr, nullptr, true, getter_AddRefs(newSHEntry)); NS_ENSURE_SUCCESS(rv, rv); NS_ENSURE_TRUE(newSHEntry, NS_ERROR_FAILURE); // Session history entries created by pushState inherit scroll restoration // mode from the current entry. newSHEntry->SetScrollRestorationIsManual(scrollRestorationIsManual); // Link the new SHEntry to the old SHEntry's BFCache entry, since the // two entries correspond to the same document. NS_ENSURE_SUCCESS(newSHEntry->AdoptBFCacheEntry(oldOSHE), NS_ERROR_FAILURE); // Set the new SHEntry's title (bug 655273). nsString title; mOSHE->GetTitle(getter_Copies(title)); newSHEntry->SetTitle(title); // AddToSessionHistory may not modify mOSHE. In case it doesn't, // we'll just set mOSHE here. mOSHE = newSHEntry; } else { newSHEntry = mOSHE; newSHEntry->SetURI(newURI); newSHEntry->SetOriginalURI(newURI); newSHEntry->SetLoadReplace(false); } // Step 4: Modify new/original session history entry and clear its POST // data, if there is any. newSHEntry->SetStateData(scContainer); newSHEntry->SetPostData(nullptr); // If this push/replaceState changed the document's current URI and the new // URI differs from the old URI in more than the hash, or if the old // SHEntry's URI was modified in this way by a push/replaceState call // set URIWasModified to true for the current SHEntry (bug 669671). bool sameExceptHashes = true, oldURIWasModified = false; newURI->EqualsExceptRef(currentURI, &sameExceptHashes); oldOSHE->GetURIWasModified(&oldURIWasModified); newSHEntry->SetURIWasModified(!sameExceptHashes || oldURIWasModified); // Step 5: If aReplace is false, indicating that we're doing a pushState // rather than a replaceState, notify bfcache that we've added a page to // the history so it can evict content viewers if appropriate. Otherwise // call ReplaceEntry so that we notify nsIHistoryListeners that an entry // was replaced. nsCOMPtr<nsISHistory> rootSH; GetRootSessionHistory(getter_AddRefs(rootSH)); NS_ENSURE_TRUE(rootSH, NS_ERROR_UNEXPECTED); nsCOMPtr<nsISHistoryInternal> internalSH = do_QueryInterface(rootSH); NS_ENSURE_TRUE(internalSH, NS_ERROR_UNEXPECTED); if (!aReplace) { int32_t curIndex = -1; rv = rootSH->GetIndex(&curIndex); if (NS_SUCCEEDED(rv) && curIndex > -1) { internalSH->EvictOutOfRangeContentViewers(curIndex); } } else { nsCOMPtr<nsISHEntry> rootSHEntry = GetRootSHEntry(newSHEntry); int32_t index = -1; rv = rootSH->GetIndexOfEntry(rootSHEntry, &index); if (NS_SUCCEEDED(rv) && index > -1) { internalSH->ReplaceEntry(index, rootSHEntry); } } // Step 6: If the document's URI changed, update document's URI and update // global history. // // We need to call FireOnLocationChange so that the browser's address bar // gets updated and the back button is enabled, but we only need to // explicitly call FireOnLocationChange if we're not calling SetCurrentURI, // since SetCurrentURI will call FireOnLocationChange for us. // // Both SetCurrentURI(...) and FireDummyOnLocationChange() pass // nullptr for aRequest param to FireOnLocationChange(...). Such an update // notification is allowed only when we know docshell is not loading a new // document and it requires LOCATION_CHANGE_SAME_DOCUMENT flag. Otherwise, // FireOnLocationChange(...) breaks security UI. if (!equalURIs) { document->SetDocumentURI(newURI); // We can't trust SetCurrentURI to do always fire locationchange events // when we expect it to, so we hack around that by doing it ourselves... SetCurrentURI(newURI, nullptr, false, LOCATION_CHANGE_SAME_DOCUMENT); if (mLoadType != LOAD_ERROR_PAGE) { FireDummyOnLocationChange(); } AddURIVisit(newURI, oldURI, oldURI, 0); // AddURIVisit doesn't set the title for the new URI in global history, // so do that here. if (mUseGlobalHistory && !UsePrivateBrowsing()) { nsCOMPtr<IHistory> history = services::GetHistoryService(); if (history) { history->SetURITitle(newURI, mTitle); } else if (mGlobalHistory) { mGlobalHistory->SetPageTitle(newURI, mTitle); } } // Inform the favicon service that our old favicon applies to this new // URI. CopyFavicon(oldURI, newURI, document->NodePrincipal(), UsePrivateBrowsing()); } else { FireDummyOnLocationChange(); } document->SetStateObject(scContainer); return NS_OK; } NS_IMETHODIMP nsDocShell::GetCurrentScrollRestorationIsManual(bool* aIsManual) { *aIsManual = false; if (mOSHE) { mOSHE->GetScrollRestorationIsManual(aIsManual); } return NS_OK; } NS_IMETHODIMP nsDocShell::SetCurrentScrollRestorationIsManual(bool aIsManual) { if (mOSHE) { mOSHE->SetScrollRestorationIsManual(aIsManual); } return NS_OK; } bool nsDocShell::ShouldAddToSessionHistory(nsIURI* aURI) { // I believe none of the about: urls should go in the history. But then // that could just be me... If the intent is only deny about:blank then we // should just do a spec compare, rather than two gets of the scheme and // then the path. -Gagan nsresult rv; nsAutoCString buf; rv = aURI->GetScheme(buf); if (NS_FAILED(rv)) { return false; } if (buf.EqualsLiteral("about")) { rv = aURI->GetPath(buf); if (NS_FAILED(rv)) { return false; } if (buf.EqualsLiteral("blank") || buf.EqualsLiteral("newtab")) { return false; } } return true; } nsresult nsDocShell::AddToSessionHistory(nsIURI* aURI, nsIChannel* aChannel, nsIPrincipal* aTriggeringPrincipal, nsIPrincipal* aPrincipalToInherit, bool aCloneChildren, nsISHEntry** aNewEntry) { NS_PRECONDITION(aURI, "uri is null"); NS_PRECONDITION(!aChannel || !aTriggeringPrincipal, "Shouldn't have both set"); #if defined(DEBUG) if (MOZ_LOG_TEST(gDocShellLog, LogLevel::Debug)) { nsAutoCString chanName; if (aChannel) { aChannel->GetName(chanName); } else { chanName.AssignLiteral("<no channel>"); } MOZ_LOG(gDocShellLog, LogLevel::Debug, ("nsDocShell[%p]::AddToSessionHistory(\"%s\", [%s])\n", this, aURI->GetSpecOrDefault().get(), chanName.get())); } #endif nsresult rv = NS_OK; nsCOMPtr<nsISHEntry> entry; bool shouldPersist; shouldPersist = ShouldAddToSessionHistory(aURI); // Get a handle to the root docshell nsCOMPtr<nsIDocShellTreeItem> root; GetSameTypeRootTreeItem(getter_AddRefs(root)); /* * If this is a LOAD_FLAGS_REPLACE_HISTORY in a subframe, we use * the existing SH entry in the page and replace the url and * other vitalities. */ if (LOAD_TYPE_HAS_FLAGS(mLoadType, LOAD_FLAGS_REPLACE_HISTORY) && root != static_cast<nsIDocShellTreeItem*>(this)) { // This is a subframe entry = mOSHE; nsCOMPtr<nsISHContainer> shContainer(do_QueryInterface(entry)); if (shContainer) { int32_t childCount = 0; shContainer->GetChildCount(&childCount); // Remove all children of this entry for (int32_t i = childCount - 1; i >= 0; i--) { nsCOMPtr<nsISHEntry> child; shContainer->GetChildAt(i, getter_AddRefs(child)); shContainer->RemoveChild(child); } entry->AbandonBFCacheEntry(); } } // Create a new entry if necessary. if (!entry) { entry = do_CreateInstance(NS_SHENTRY_CONTRACTID); if (!entry) { return NS_ERROR_OUT_OF_MEMORY; } } // Get the post data & referrer nsCOMPtr<nsIInputStream> inputStream; nsCOMPtr<nsIURI> originalURI; bool loadReplace = false; nsCOMPtr<nsIURI> referrerURI; uint32_t referrerPolicy = mozilla::net::RP_Default; nsCOMPtr<nsISupports> cacheKey; nsCOMPtr<nsIPrincipal> triggeringPrincipal = aTriggeringPrincipal; nsCOMPtr<nsIPrincipal> principalToInherit = aPrincipalToInherit; bool expired = false; bool discardLayoutState = false; nsCOMPtr<nsICacheInfoChannel> cacheChannel; if (aChannel) { cacheChannel = do_QueryInterface(aChannel); /* If there is a caching channel, get the Cache Key and store it * in SH. */ if (cacheChannel) { cacheChannel->GetCacheKey(getter_AddRefs(cacheKey)); } nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(aChannel)); // Check if the httpChannel is hiding under a multipartChannel if (!httpChannel) { GetHttpChannel(aChannel, getter_AddRefs(httpChannel)); } if (httpChannel) { nsCOMPtr<nsIUploadChannel> uploadChannel(do_QueryInterface(httpChannel)); if (uploadChannel) { uploadChannel->GetUploadStream(getter_AddRefs(inputStream)); } httpChannel->GetOriginalURI(getter_AddRefs(originalURI)); uint32_t loadFlags; aChannel->GetLoadFlags(&loadFlags); loadReplace = loadFlags & nsIChannel::LOAD_REPLACE; httpChannel->GetReferrer(getter_AddRefs(referrerURI)); httpChannel->GetReferrerPolicy(&referrerPolicy); discardLayoutState = ShouldDiscardLayoutState(httpChannel); } // XXX Bug 1286838: Replace channel owner with loadInfo triggeringPrincipal nsCOMPtr<nsISupports> owner; aChannel->GetOwner(getter_AddRefs(owner)); triggeringPrincipal = do_QueryInterface(owner); nsCOMPtr<nsILoadInfo> loadInfo = aChannel->GetLoadInfo(); if (loadInfo) { if (!triggeringPrincipal) { triggeringPrincipal = loadInfo->TriggeringPrincipal(); } // For now keep storing just the principal in the SHEntry. if (!principalToInherit) { if (loadInfo->GetLoadingSandboxed()) { if (loadInfo->LoadingPrincipal()) { principalToInherit = nsNullPrincipal::CreateWithInheritedAttributes( loadInfo->LoadingPrincipal()); } else { // get the OriginAttributes NeckoOriginAttributes nAttrs; loadInfo->GetOriginAttributes(&nAttrs); PrincipalOriginAttributes pAttrs; pAttrs.InheritFromNecko(nAttrs); principalToInherit = nsNullPrincipal::Create(pAttrs); } } else { principalToInherit = loadInfo->PrincipalToInherit(); } } } } // Title is set in nsDocShell::SetTitle() entry->Create(aURI, // uri EmptyString(), // Title inputStream, // Post data stream nullptr, // LayoutHistory state cacheKey, // CacheKey mContentTypeHint, // Content-type triggeringPrincipal, // Channel or provided principal principalToInherit, mHistoryID, mDynamicallyCreated); entry->SetOriginalURI(originalURI); entry->SetLoadReplace(loadReplace); entry->SetReferrerURI(referrerURI); entry->SetReferrerPolicy(referrerPolicy); nsCOMPtr<nsIInputStreamChannel> inStrmChan = do_QueryInterface(aChannel); if (inStrmChan) { bool isSrcdocChannel; inStrmChan->GetIsSrcdocChannel(&isSrcdocChannel); if (isSrcdocChannel) { nsAutoString srcdoc; inStrmChan->GetSrcdocData(srcdoc); entry->SetSrcdocData(srcdoc); nsCOMPtr<nsIURI> baseURI; inStrmChan->GetBaseURI(getter_AddRefs(baseURI)); entry->SetBaseURI(baseURI); } } /* If cache got a 'no-store', ask SH not to store * HistoryLayoutState. By default, SH will set this * flag to true and save HistoryLayoutState. */ if (discardLayoutState) { entry->SetSaveLayoutStateFlag(false); } if (cacheChannel) { // Check if the page has expired from cache uint32_t expTime = 0; cacheChannel->GetCacheTokenExpirationTime(&expTime); uint32_t now = PRTimeToSeconds(PR_Now()); if (expTime <= now) { expired = true; } } if (expired) { entry->SetExpirationStatus(true); } if (root == static_cast<nsIDocShellTreeItem*>(this) && mSessionHistory) { // If we need to clone our children onto the new session // history entry, do so now. if (aCloneChildren && mOSHE) { uint32_t cloneID; mOSHE->GetID(&cloneID); nsCOMPtr<nsISHEntry> newEntry; CloneAndReplace(mOSHE, this, cloneID, entry, true, getter_AddRefs(newEntry)); NS_ASSERTION(entry == newEntry, "The new session history should be in the new entry"); } // This is the root docshell bool addToSHistory = !LOAD_TYPE_HAS_FLAGS(mLoadType, LOAD_FLAGS_REPLACE_HISTORY); if (!addToSHistory) { // Replace current entry in session history; If the requested index is // valid, it indicates the loading was triggered by a history load, and // we should replace the entry at requested index instead. int32_t index = 0; mSessionHistory->GetRequestedIndex(&index); if (index == -1) { mSessionHistory->GetIndex(&index); } nsCOMPtr<nsISHistoryInternal> shPrivate = do_QueryInterface(mSessionHistory); // Replace the current entry with the new entry if (index >= 0) { if (shPrivate) { rv = shPrivate->ReplaceEntry(index, entry); } } else { // If we're trying to replace an inexistant shistory entry, append. addToSHistory = true; } } if (addToSHistory) { // Add to session history nsCOMPtr<nsISHistoryInternal> shPrivate = do_QueryInterface(mSessionHistory); NS_ENSURE_TRUE(shPrivate, NS_ERROR_FAILURE); mSessionHistory->GetIndex(&mPreviousTransIndex); rv = shPrivate->AddEntry(entry, shouldPersist); mSessionHistory->GetIndex(&mLoadedTransIndex); #ifdef DEBUG_PAGE_CACHE printf("Previous index: %d, Loaded index: %d\n\n", mPreviousTransIndex, mLoadedTransIndex); #endif } } else { // This is a subframe. if (!mOSHE || !LOAD_TYPE_HAS_FLAGS(mLoadType, LOAD_FLAGS_REPLACE_HISTORY)) { rv = AddChildSHEntryToParent(entry, mChildOffset, aCloneChildren); } } // Return the new SH entry... if (aNewEntry) { *aNewEntry = nullptr; if (NS_SUCCEEDED(rv)) { entry.forget(aNewEntry); } } return rv; } nsresult nsDocShell::LoadHistoryEntry(nsISHEntry* aEntry, uint32_t aLoadType) { if (!IsNavigationAllowed()) { return NS_OK; } nsCOMPtr<nsIURI> uri; nsCOMPtr<nsIURI> originalURI; bool loadReplace = false; nsCOMPtr<nsIInputStream> postData; nsCOMPtr<nsIURI> referrerURI; uint32_t referrerPolicy; nsAutoCString contentType; nsCOMPtr<nsIPrincipal> triggeringPrincipal; nsCOMPtr<nsIPrincipal> principalToInherit; NS_ENSURE_TRUE(aEntry, NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(aEntry->GetURI(getter_AddRefs(uri)), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(aEntry->GetOriginalURI(getter_AddRefs(originalURI)), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(aEntry->GetLoadReplace(&loadReplace), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(aEntry->GetReferrerURI(getter_AddRefs(referrerURI)), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(aEntry->GetReferrerPolicy(&referrerPolicy), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(aEntry->GetPostData(getter_AddRefs(postData)), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(aEntry->GetContentType(contentType), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(aEntry->GetTriggeringPrincipal(getter_AddRefs(triggeringPrincipal)), NS_ERROR_FAILURE); NS_ENSURE_SUCCESS(aEntry->GetPrincipalToInherit(getter_AddRefs(principalToInherit)), NS_ERROR_FAILURE); // Calling CreateAboutBlankContentViewer can set mOSHE to null, and if // that's the only thing holding a ref to aEntry that will cause aEntry to // die while we're loading it. So hold a strong ref to aEntry here, just // in case. nsCOMPtr<nsISHEntry> kungFuDeathGrip(aEntry); bool isJS; nsresult rv = uri->SchemeIs("javascript", &isJS); if (NS_FAILED(rv) || isJS) { // We're loading a URL that will execute script from inside asyncOpen. // Replace the current document with about:blank now to prevent // anything from the current document from leaking into any JavaScript // code in the URL. // Don't cache the presentation if we're going to just reload the // current entry. Caching would lead to trying to save the different // content viewers in the same nsISHEntry object. rv = CreateAboutBlankContentViewer(principalToInherit, nullptr, aEntry != mOSHE); if (NS_FAILED(rv)) { // The creation of the intermittent about:blank content // viewer failed for some reason (potentially because the // user prevented it). Interrupt the history load. return NS_OK; } if (!triggeringPrincipal) { // Ensure that we have a triggeringPrincipal. Otherwise javascript: // URIs will pick it up from the about:blank page we just loaded, // and we don't really want even that in this case. triggeringPrincipal = nsNullPrincipal::CreateWithInheritedAttributes(this); } } /* If there is a valid postdata *and* the user pressed * reload or shift-reload, take user's permission before we * repost the data to the server. */ if ((aLoadType & LOAD_CMD_RELOAD) && postData) { bool repost; rv = ConfirmRepost(&repost); if (NS_FAILED(rv)) { return rv; } // If the user pressed cancel in the dialog, return. We're done here. if (!repost) { return NS_BINDING_ABORTED; } } // Do not inherit principal from document (security-critical!); uint32_t flags = INTERNAL_LOAD_FLAGS_NONE; nsAutoString srcdoc; bool isSrcdoc; nsCOMPtr<nsIURI> baseURI; aEntry->GetIsSrcdocEntry(&isSrcdoc); if (isSrcdoc) { aEntry->GetSrcdocData(srcdoc); aEntry->GetBaseURI(getter_AddRefs(baseURI)); flags |= INTERNAL_LOAD_FLAGS_IS_SRCDOC; } else { srcdoc = NullString(); } // If there is no triggeringPrincipal we can fall back to using the // SystemPrincipal as the triggeringPrincipal for loading the history // entry, since the history entry can only end up in history if security // checks passed in the initial loading phase. if (!triggeringPrincipal) { triggeringPrincipal = nsContentUtils::GetSystemPrincipal(); } // Passing nullptr as aSourceDocShell gives the same behaviour as before // aSourceDocShell was introduced. According to spec we should be passing // the source browsing context that was used when the history entry was // first created. bug 947716 has been created to address this issue. rv = InternalLoad(uri, originalURI, loadReplace, referrerURI, referrerPolicy, triggeringPrincipal, principalToInherit, flags, EmptyString(), // No window target contentType.get(), // Type hint NullString(), // No forced file download postData, // Post data stream nullptr, // No headers stream aLoadType, // Load type aEntry, // SHEntry true, srcdoc, nullptr, // Source docshell, see comment above baseURI, nullptr, // No nsIDocShell nullptr); // No nsIRequest return rv; } NS_IMETHODIMP nsDocShell::GetShouldSaveLayoutState(bool* aShould) { *aShould = false; if (mOSHE) { // Don't capture historystate and save it in history // if the page asked not to do so. mOSHE->GetSaveLayoutStateFlag(aShould); } return NS_OK; } nsresult nsDocShell::PersistLayoutHistoryState() { nsresult rv = NS_OK; if (mOSHE) { bool scrollRestorationIsManual = false; mOSHE->GetScrollRestorationIsManual(&scrollRestorationIsManual); nsCOMPtr<nsIPresShell> shell = GetPresShell(); nsCOMPtr<nsILayoutHistoryState> layoutState; if (shell) { rv = shell->CaptureHistoryState(getter_AddRefs(layoutState)); } else if (scrollRestorationIsManual) { // Even if we don't have layout anymore, we may want to reset the current // scroll state in layout history. GetLayoutHistoryState(getter_AddRefs(layoutState)); } if (scrollRestorationIsManual && layoutState) { layoutState->ResetScrollState(); } } return rv; } /* static */ nsresult nsDocShell::WalkHistoryEntries(nsISHEntry* aRootEntry, nsDocShell* aRootShell, WalkHistoryEntriesFunc aCallback, void* aData) { NS_ENSURE_TRUE(aRootEntry, NS_ERROR_FAILURE); nsCOMPtr<nsISHContainer> container(do_QueryInterface(aRootEntry)); if (!container) { return NS_ERROR_FAILURE; } int32_t childCount; container->GetChildCount(&childCount); for (int32_t i = 0; i < childCount; i++) { nsCOMPtr<nsISHEntry> childEntry; container->GetChildAt(i, getter_AddRefs(childEntry)); if (!childEntry) { // childEntry can be null for valid reasons, for example if the // docshell at index i never loaded anything useful. // Remember to clone also nulls in the child array (bug 464064). aCallback(nullptr, nullptr, i, aData); continue; } nsDocShell* childShell = nullptr; if (aRootShell) { // Walk the children of aRootShell and see if one of them // has srcChild as a SHEntry. nsTObserverArray<nsDocLoader*>::ForwardIterator iter( aRootShell->mChildList); while (iter.HasMore()) { nsDocShell* child = static_cast<nsDocShell*>(iter.GetNext()); if (child->HasHistoryEntry(childEntry)) { childShell = child; break; } } } nsresult rv = aCallback(childEntry, childShell, i, aData); NS_ENSURE_SUCCESS(rv, rv); } return NS_OK; } // callback data for WalkHistoryEntries struct MOZ_STACK_CLASS CloneAndReplaceData { CloneAndReplaceData(uint32_t aCloneID, nsISHEntry* aReplaceEntry, bool aCloneChildren, nsISHEntry* aDestTreeParent) : cloneID(aCloneID) , cloneChildren(aCloneChildren) , replaceEntry(aReplaceEntry) , destTreeParent(aDestTreeParent) { } uint32_t cloneID; bool cloneChildren; nsISHEntry* replaceEntry; nsISHEntry* destTreeParent; nsCOMPtr<nsISHEntry> resultEntry; }; /* static */ nsresult nsDocShell::CloneAndReplaceChild(nsISHEntry* aEntry, nsDocShell* aShell, int32_t aEntryIndex, void* aData) { nsCOMPtr<nsISHEntry> dest; CloneAndReplaceData* data = static_cast<CloneAndReplaceData*>(aData); uint32_t cloneID = data->cloneID; nsISHEntry* replaceEntry = data->replaceEntry; nsCOMPtr<nsISHContainer> container = do_QueryInterface(data->destTreeParent); if (!aEntry) { if (container) { container->AddChild(nullptr, aEntryIndex); } return NS_OK; } uint32_t srcID; aEntry->GetID(&srcID); nsresult rv = NS_OK; if (srcID == cloneID) { // Replace the entry dest = replaceEntry; } else { // Clone the SHEntry... rv = aEntry->Clone(getter_AddRefs(dest)); NS_ENSURE_SUCCESS(rv, rv); } dest->SetIsSubFrame(true); if (srcID != cloneID || data->cloneChildren) { // Walk the children CloneAndReplaceData childData(cloneID, replaceEntry, data->cloneChildren, dest); rv = WalkHistoryEntries(aEntry, aShell, CloneAndReplaceChild, &childData); NS_ENSURE_SUCCESS(rv, rv); } if (srcID != cloneID && aShell) { aShell->SwapHistoryEntries(aEntry, dest); } if (container) { container->AddChild(dest, aEntryIndex); } data->resultEntry = dest; return rv; } /* static */ nsresult nsDocShell::CloneAndReplace(nsISHEntry* aSrcEntry, nsDocShell* aSrcShell, uint32_t aCloneID, nsISHEntry* aReplaceEntry, bool aCloneChildren, nsISHEntry** aResultEntry) { NS_ENSURE_ARG_POINTER(aResultEntry); NS_ENSURE_TRUE(aReplaceEntry, NS_ERROR_FAILURE); CloneAndReplaceData data(aCloneID, aReplaceEntry, aCloneChildren, nullptr); nsresult rv = CloneAndReplaceChild(aSrcEntry, aSrcShell, 0, &data); data.resultEntry.swap(*aResultEntry); return rv; } void nsDocShell::SwapHistoryEntries(nsISHEntry* aOldEntry, nsISHEntry* aNewEntry) { if (aOldEntry == mOSHE) { mOSHE = aNewEntry; } if (aOldEntry == mLSHE) { mLSHE = aNewEntry; } } struct SwapEntriesData { nsDocShell* ignoreShell; // constant; the shell to ignore nsISHEntry* destTreeRoot; // constant; the root of the dest tree nsISHEntry* destTreeParent; // constant; the node under destTreeRoot // whose children will correspond to aEntry }; nsresult nsDocShell::SetChildHistoryEntry(nsISHEntry* aEntry, nsDocShell* aShell, int32_t aEntryIndex, void* aData) { SwapEntriesData* data = static_cast<SwapEntriesData*>(aData); nsDocShell* ignoreShell = data->ignoreShell; if (!aShell || aShell == ignoreShell) { return NS_OK; } nsISHEntry* destTreeRoot = data->destTreeRoot; nsCOMPtr<nsISHEntry> destEntry; nsCOMPtr<nsISHContainer> container = do_QueryInterface(data->destTreeParent); if (container) { // aEntry is a clone of some child of destTreeParent, but since the // trees aren't necessarily in sync, we'll have to locate it. // Note that we could set aShell's entry to null if we don't find a // corresponding entry under destTreeParent. uint32_t targetID, id; aEntry->GetID(&targetID); // First look at the given index, since this is the common case. nsCOMPtr<nsISHEntry> entry; container->GetChildAt(aEntryIndex, getter_AddRefs(entry)); if (entry && NS_SUCCEEDED(entry->GetID(&id)) && id == targetID) { destEntry.swap(entry); } else { int32_t childCount; container->GetChildCount(&childCount); for (int32_t i = 0; i < childCount; ++i) { container->GetChildAt(i, getter_AddRefs(entry)); if (!entry) { continue; } entry->GetID(&id); if (id == targetID) { destEntry.swap(entry); break; } } } } else { destEntry = destTreeRoot; } aShell->SwapHistoryEntries(aEntry, destEntry); // Now handle the children of aEntry. SwapEntriesData childData = { ignoreShell, destTreeRoot, destEntry }; return WalkHistoryEntries(aEntry, aShell, SetChildHistoryEntry, &childData); } static nsISHEntry* GetRootSHEntry(nsISHEntry* aEntry) { nsCOMPtr<nsISHEntry> rootEntry = aEntry; nsISHEntry* result = nullptr; while (rootEntry) { result = rootEntry; result->GetParent(getter_AddRefs(rootEntry)); } return result; } void nsDocShell::SetHistoryEntry(nsCOMPtr<nsISHEntry>* aPtr, nsISHEntry* aEntry) { // We need to sync up the docshell and session history trees for // subframe navigation. If the load was in a subframe, we forward up to // the root docshell, which will then recursively sync up all docshells // to their corresponding entries in the new session history tree. // If we don't do this, then we can cache a content viewer on the wrong // cloned entry, and subsequently restore it at the wrong time. nsISHEntry* newRootEntry = GetRootSHEntry(aEntry); if (newRootEntry) { // newRootEntry is now the new root entry. // Find the old root entry as well. // Need a strong ref. on |oldRootEntry| so it isn't destroyed when // SetChildHistoryEntry() does SwapHistoryEntries() (bug 304639). nsCOMPtr<nsISHEntry> oldRootEntry = GetRootSHEntry(*aPtr); if (oldRootEntry) { nsCOMPtr<nsIDocShellTreeItem> rootAsItem; GetSameTypeRootTreeItem(getter_AddRefs(rootAsItem)); nsCOMPtr<nsIDocShell> rootShell = do_QueryInterface(rootAsItem); if (rootShell) { // if we're the root just set it, nothing to swap SwapEntriesData data = { this, newRootEntry }; nsIDocShell* rootIDocShell = static_cast<nsIDocShell*>(rootShell); nsDocShell* rootDocShell = static_cast<nsDocShell*>(rootIDocShell); #ifdef DEBUG nsresult rv = #endif SetChildHistoryEntry(oldRootEntry, rootDocShell, 0, &data); NS_ASSERTION(NS_SUCCEEDED(rv), "SetChildHistoryEntry failed"); } } } *aPtr = aEntry; } nsresult nsDocShell::GetRootSessionHistory(nsISHistory** aReturn) { nsresult rv; nsCOMPtr<nsIDocShellTreeItem> root; // Get the root docshell rv = GetSameTypeRootTreeItem(getter_AddRefs(root)); // QI to nsIWebNavigation nsCOMPtr<nsIWebNavigation> rootAsWebnav(do_QueryInterface(root)); if (rootAsWebnav) { // Get the handle to SH from the root docshell rv = rootAsWebnav->GetSessionHistory(aReturn); } return rv; } nsresult nsDocShell::GetHttpChannel(nsIChannel* aChannel, nsIHttpChannel** aReturn) { NS_ENSURE_ARG_POINTER(aReturn); if (!aChannel) { return NS_ERROR_FAILURE; } nsCOMPtr<nsIMultiPartChannel> multiPartChannel(do_QueryInterface(aChannel)); if (multiPartChannel) { nsCOMPtr<nsIChannel> baseChannel; multiPartChannel->GetBaseChannel(getter_AddRefs(baseChannel)); nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(baseChannel)); *aReturn = httpChannel; NS_IF_ADDREF(*aReturn); } return NS_OK; } bool nsDocShell::ShouldDiscardLayoutState(nsIHttpChannel* aChannel) { // By default layout State will be saved. if (!aChannel) { return false; } // figure out if SH should be saving layout state bool noStore = false; aChannel->IsNoStoreResponse(&noStore); return noStore; } NS_IMETHODIMP nsDocShell::GetEditor(nsIEditor** aEditor) { NS_ENSURE_ARG_POINTER(aEditor); if (!mEditorData) { *aEditor = nullptr; return NS_OK; } return mEditorData->GetEditor(aEditor); } NS_IMETHODIMP nsDocShell::SetEditor(nsIEditor* aEditor) { nsresult rv = EnsureEditorData(); if (NS_FAILED(rv)) { return rv; } return mEditorData->SetEditor(aEditor); } NS_IMETHODIMP nsDocShell::GetEditable(bool* aEditable) { NS_ENSURE_ARG_POINTER(aEditable); *aEditable = mEditorData && mEditorData->GetEditable(); return NS_OK; } NS_IMETHODIMP nsDocShell::GetHasEditingSession(bool* aHasEditingSession) { NS_ENSURE_ARG_POINTER(aHasEditingSession); if (mEditorData) { nsCOMPtr<nsIEditingSession> editingSession; mEditorData->GetEditingSession(getter_AddRefs(editingSession)); *aHasEditingSession = (editingSession.get() != nullptr); } else { *aHasEditingSession = false; } return NS_OK; } NS_IMETHODIMP nsDocShell::MakeEditable(bool aInWaitForUriLoad) { nsresult rv = EnsureEditorData(); if (NS_FAILED(rv)) { return rv; } return mEditorData->MakeEditable(aInWaitForUriLoad); } bool nsDocShell::ChannelIsPost(nsIChannel* aChannel) { nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(aChannel)); if (!httpChannel) { return false; } nsAutoCString method; httpChannel->GetRequestMethod(method); return method.EqualsLiteral("POST"); } void nsDocShell::ExtractLastVisit(nsIChannel* aChannel, nsIURI** aURI, uint32_t* aChannelRedirectFlags) { nsCOMPtr<nsIPropertyBag2> props(do_QueryInterface(aChannel)); if (!props) { return; } nsresult rv = props->GetPropertyAsInterface( NS_LITERAL_STRING("docshell.previousURI"), NS_GET_IID(nsIURI), reinterpret_cast<void**>(aURI)); if (NS_FAILED(rv)) { // There is no last visit for this channel, so this must be the first // link. Link the visit to the referrer of this request, if any. // Treat referrer as null if there is an error getting it. (void)NS_GetReferrerFromChannel(aChannel, aURI); } else { rv = props->GetPropertyAsUint32(NS_LITERAL_STRING("docshell.previousFlags"), aChannelRedirectFlags); NS_WARNING_ASSERTION( NS_SUCCEEDED(rv), "Could not fetch previous flags, URI will be treated like referrer"); } } void nsDocShell::SaveLastVisit(nsIChannel* aChannel, nsIURI* aURI, uint32_t aChannelRedirectFlags) { nsCOMPtr<nsIWritablePropertyBag2> props(do_QueryInterface(aChannel)); if (!props || !aURI) { return; } props->SetPropertyAsInterface(NS_LITERAL_STRING("docshell.previousURI"), aURI); props->SetPropertyAsUint32(NS_LITERAL_STRING("docshell.previousFlags"), aChannelRedirectFlags); } void nsDocShell::AddURIVisit(nsIURI* aURI, nsIURI* aReferrerURI, nsIURI* aPreviousURI, uint32_t aChannelRedirectFlags, uint32_t aResponseStatus) { MOZ_ASSERT(aURI, "Visited URI is null!"); MOZ_ASSERT(mLoadType != LOAD_ERROR_PAGE && mLoadType != LOAD_BYPASS_HISTORY, "Do not add error or bypass pages to global history"); // Only content-type docshells save URI visits. Also don't do // anything here if we're not supposed to use global history. if (mItemType != typeContent || !mUseGlobalHistory || UsePrivateBrowsing()) { return; } nsCOMPtr<IHistory> history = services::GetHistoryService(); if (history) { uint32_t visitURIFlags = 0; if (!IsFrame()) { visitURIFlags |= IHistory::TOP_LEVEL; } if (aChannelRedirectFlags & nsIChannelEventSink::REDIRECT_TEMPORARY) { visitURIFlags |= IHistory::REDIRECT_TEMPORARY; } else if (aChannelRedirectFlags & nsIChannelEventSink::REDIRECT_PERMANENT) { visitURIFlags |= IHistory::REDIRECT_PERMANENT; } if (aResponseStatus >= 300 && aResponseStatus < 400) { visitURIFlags |= IHistory::REDIRECT_SOURCE; } // Errors 400-501 and 505 are considered unrecoverable, in the sense a // simple retry attempt by the user is unlikely to solve them. // 408 is special cased, since may actually indicate a temporary // connection problem. else if (aResponseStatus != 408 && ((aResponseStatus >= 400 && aResponseStatus <= 501) || aResponseStatus == 505)) { visitURIFlags |= IHistory::UNRECOVERABLE_ERROR; } (void)history->VisitURI(aURI, aPreviousURI, visitURIFlags); } else if (mGlobalHistory) { // Falls back to sync global history interface. (void)mGlobalHistory->AddURI(aURI, !!aChannelRedirectFlags, !IsFrame(), aReferrerURI); } } //***************************************************************************** // nsDocShell: Helper Routines //***************************************************************************** NS_IMETHODIMP nsDocShell::SetLoadType(uint32_t aLoadType) { mLoadType = aLoadType; return NS_OK; } NS_IMETHODIMP nsDocShell::GetLoadType(uint32_t* aLoadType) { *aLoadType = mLoadType; return NS_OK; } nsresult nsDocShell::ConfirmRepost(bool* aRepost) { nsCOMPtr<nsIPrompt> prompter; CallGetInterface(this, static_cast<nsIPrompt**>(getter_AddRefs(prompter))); if (!prompter) { return NS_ERROR_NOT_AVAILABLE; } nsCOMPtr<nsIStringBundleService> stringBundleService = mozilla::services::GetStringBundleService(); if (!stringBundleService) { return NS_ERROR_FAILURE; } nsCOMPtr<nsIStringBundle> appBundle; nsresult rv = stringBundleService->CreateBundle(kAppstringsBundleURL, getter_AddRefs(appBundle)); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr<nsIStringBundle> brandBundle; rv = stringBundleService->CreateBundle(kBrandBundleURL, getter_AddRefs(brandBundle)); NS_ENSURE_SUCCESS(rv, rv); NS_ASSERTION(prompter && brandBundle && appBundle, "Unable to set up repost prompter."); nsXPIDLString brandName; rv = brandBundle->GetStringFromName(u"brandShortName", getter_Copies(brandName)); nsXPIDLString msgString, button0Title; if (NS_FAILED(rv)) { // No brand, use the generic version. rv = appBundle->GetStringFromName(u"confirmRepostPrompt", getter_Copies(msgString)); } else { // Brand available - if the app has an override file with formatting, the // app name will be included. Without an override, the prompt will look // like the generic version. const char16_t* formatStrings[] = { brandName.get() }; rv = appBundle->FormatStringFromName(u"confirmRepostPrompt", formatStrings, ArrayLength(formatStrings), getter_Copies(msgString)); } if (NS_FAILED(rv)) { return rv; } rv = appBundle->GetStringFromName(u"resendButton.label", getter_Copies(button0Title)); if (NS_FAILED(rv)) { return rv; } int32_t buttonPressed; // The actual value here is irrelevant, but we can't pass an invalid // bool through XPConnect. bool checkState = false; rv = prompter->ConfirmEx( nullptr, msgString.get(), (nsIPrompt::BUTTON_POS_0 * nsIPrompt::BUTTON_TITLE_IS_STRING) + (nsIPrompt::BUTTON_POS_1 * nsIPrompt::BUTTON_TITLE_CANCEL), button0Title.get(), nullptr, nullptr, nullptr, &checkState, &buttonPressed); if (NS_FAILED(rv)) { return rv; } *aRepost = (buttonPressed == 0); return NS_OK; } NS_IMETHODIMP nsDocShell::GetPromptAndStringBundle(nsIPrompt** aPrompt, nsIStringBundle** aStringBundle) { NS_ENSURE_SUCCESS(GetInterface(NS_GET_IID(nsIPrompt), (void**)aPrompt), NS_ERROR_FAILURE); nsCOMPtr<nsIStringBundleService> stringBundleService = mozilla::services::GetStringBundleService(); NS_ENSURE_TRUE(stringBundleService, NS_ERROR_FAILURE); NS_ENSURE_SUCCESS( stringBundleService->CreateBundle(kAppstringsBundleURL, aStringBundle), NS_ERROR_FAILURE); return NS_OK; } NS_IMETHODIMP nsDocShell::GetChildOffset(nsIDOMNode* aChild, nsIDOMNode* aParent, int32_t* aOffset) { NS_ENSURE_ARG_POINTER(aChild || aParent); nsCOMPtr<nsIDOMNodeList> childNodes; NS_ENSURE_SUCCESS(aParent->GetChildNodes(getter_AddRefs(childNodes)), NS_ERROR_FAILURE); NS_ENSURE_TRUE(childNodes, NS_ERROR_FAILURE); int32_t i = 0; for (; true; i++) { nsCOMPtr<nsIDOMNode> childNode; NS_ENSURE_SUCCESS(childNodes->Item(i, getter_AddRefs(childNode)), NS_ERROR_FAILURE); NS_ENSURE_TRUE(childNode, NS_ERROR_FAILURE); if (childNode.get() == aChild) { *aOffset = i; return NS_OK; } } return NS_ERROR_FAILURE; } nsIScrollableFrame* nsDocShell::GetRootScrollFrame() { nsCOMPtr<nsIPresShell> shell = GetPresShell(); NS_ENSURE_TRUE(shell, nullptr); return shell->GetRootScrollFrameAsScrollableExternal(); } NS_IMETHODIMP nsDocShell::EnsureScriptEnvironment() { if (mScriptGlobal) { return NS_OK; } if (mIsBeingDestroyed) { return NS_ERROR_NOT_AVAILABLE; } #ifdef DEBUG NS_ASSERTION(!mInEnsureScriptEnv, "Infinite loop! Calling EnsureScriptEnvironment() from " "within EnsureScriptEnvironment()!"); // Yeah, this isn't re-entrant safe, but that's ok since if we // re-enter this method, we'll infinitely loop... AutoRestore<bool> boolSetter(mInEnsureScriptEnv); mInEnsureScriptEnv = true; #endif nsCOMPtr<nsIWebBrowserChrome> browserChrome(do_GetInterface(mTreeOwner)); NS_ENSURE_TRUE(browserChrome, NS_ERROR_NOT_AVAILABLE); uint32_t chromeFlags; browserChrome->GetChromeFlags(&chromeFlags); bool isModalContentWindow = (mItemType == typeContent) && (chromeFlags & nsIWebBrowserChrome::CHROME_MODAL_CONTENT_WINDOW); // There can be various other content docshells associated with the // top-level window, like sidebars. Make sure that we only create an // nsGlobalModalWindow for the primary content shell. if (isModalContentWindow) { nsCOMPtr<nsIDocShellTreeItem> primaryItem; nsresult rv = mTreeOwner->GetPrimaryContentShell(getter_AddRefs(primaryItem)); NS_ENSURE_SUCCESS(rv, rv); isModalContentWindow = (primaryItem == this); } // If our window is modal and we're not opened as chrome, make // this window a modal content window. mScriptGlobal = NS_NewScriptGlobalObject(mItemType == typeChrome, isModalContentWindow); MOZ_ASSERT(mScriptGlobal); mScriptGlobal->SetDocShell(this); // Ensure the script object is set up to run script. return mScriptGlobal->EnsureScriptEnvironment(); } NS_IMETHODIMP nsDocShell::EnsureEditorData() { bool openDocHasDetachedEditor = mOSHE && mOSHE->HasDetachedEditor(); if (!mEditorData && !mIsBeingDestroyed && !openDocHasDetachedEditor) { // We shouldn't recreate the editor data if it already exists, or // we're shutting down, or we already have a detached editor data // stored in the session history. We should only have one editordata // per docshell. mEditorData = new nsDocShellEditorData(this); } return mEditorData ? NS_OK : NS_ERROR_NOT_AVAILABLE; } nsresult nsDocShell::EnsureTransferableHookData() { if (!mTransferableHookData) { mTransferableHookData = new nsTransferableHookData(); } return NS_OK; } NS_IMETHODIMP nsDocShell::EnsureFind() { nsresult rv; if (!mFind) { mFind = do_CreateInstance("@mozilla.org/embedcomp/find;1", &rv); if (NS_FAILED(rv)) { return rv; } } // we promise that the nsIWebBrowserFind that we return has been set // up to point to the focused, or content window, so we have to // set that up each time. nsIScriptGlobalObject* scriptGO = GetScriptGlobalObject(); NS_ENSURE_TRUE(scriptGO, NS_ERROR_UNEXPECTED); // default to our window nsCOMPtr<nsPIDOMWindowOuter> ourWindow = do_QueryInterface(scriptGO); nsCOMPtr<nsPIDOMWindowOuter> windowToSearch; nsFocusManager::GetFocusedDescendant(ourWindow, true, getter_AddRefs(windowToSearch)); nsCOMPtr<nsIWebBrowserFindInFrames> findInFrames = do_QueryInterface(mFind); if (!findInFrames) { return NS_ERROR_NO_INTERFACE; } rv = findInFrames->SetRootSearchFrame(ourWindow); if (NS_FAILED(rv)) { return rv; } rv = findInFrames->SetCurrentSearchFrame(windowToSearch); if (NS_FAILED(rv)) { return rv; } return NS_OK; } bool nsDocShell::IsFrame() { nsCOMPtr<nsIDocShellTreeItem> parent; GetSameTypeParent(getter_AddRefs(parent)); return !!parent; } NS_IMETHODIMP nsDocShell::IsBeingDestroyed(bool* aDoomed) { NS_ENSURE_ARG(aDoomed); *aDoomed = mIsBeingDestroyed; return NS_OK; } NS_IMETHODIMP nsDocShell::GetIsExecutingOnLoadHandler(bool* aResult) { NS_ENSURE_ARG(aResult); *aResult = mIsExecutingOnLoadHandler; return NS_OK; } NS_IMETHODIMP nsDocShell::GetLayoutHistoryState(nsILayoutHistoryState** aLayoutHistoryState) { if (mOSHE) { mOSHE->GetLayoutHistoryState(aLayoutHistoryState); } return NS_OK; } NS_IMETHODIMP nsDocShell::SetLayoutHistoryState(nsILayoutHistoryState* aLayoutHistoryState) { if (mOSHE) { mOSHE->SetLayoutHistoryState(aLayoutHistoryState); } return NS_OK; } nsRefreshTimer::nsRefreshTimer() : mDelay(0), mRepeat(false), mMetaRefresh(false) { } nsRefreshTimer::~nsRefreshTimer() { } NS_IMPL_ADDREF(nsRefreshTimer) NS_IMPL_RELEASE(nsRefreshTimer) NS_INTERFACE_MAP_BEGIN(nsRefreshTimer) NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsITimerCallback) NS_INTERFACE_MAP_ENTRY(nsITimerCallback) NS_INTERFACE_MAP_END_THREADSAFE NS_IMETHODIMP nsRefreshTimer::Notify(nsITimer* aTimer) { NS_ASSERTION(mDocShell, "DocShell is somehow null"); if (mDocShell && aTimer) { // Get the delay count to determine load type uint32_t delay = 0; aTimer->GetDelay(&delay); mDocShell->ForceRefreshURIFromTimer(mURI, delay, mMetaRefresh, aTimer, mPrincipal); } return NS_OK; } nsDocShell::InterfaceRequestorProxy::InterfaceRequestorProxy( nsIInterfaceRequestor* aRequestor) { if (aRequestor) { mWeakPtr = do_GetWeakReference(aRequestor); } } nsDocShell::InterfaceRequestorProxy::~InterfaceRequestorProxy() { mWeakPtr = nullptr; } NS_IMPL_ISUPPORTS(nsDocShell::InterfaceRequestorProxy, nsIInterfaceRequestor) NS_IMETHODIMP nsDocShell::InterfaceRequestorProxy::GetInterface(const nsIID& aIID, void** aSink) { NS_ENSURE_ARG_POINTER(aSink); nsCOMPtr<nsIInterfaceRequestor> ifReq = do_QueryReferent(mWeakPtr); if (ifReq) { return ifReq->GetInterface(aIID, aSink); } *aSink = nullptr; return NS_NOINTERFACE; } nsresult nsDocShell::SetBaseUrlForWyciwyg(nsIContentViewer* aContentViewer) { if (!aContentViewer) { return NS_ERROR_FAILURE; } nsCOMPtr<nsIURI> baseURI; nsresult rv = NS_ERROR_NOT_AVAILABLE; if (sURIFixup) { rv = sURIFixup->CreateExposableURI(mCurrentURI, getter_AddRefs(baseURI)); } // Get the current document and set the base uri if (baseURI) { nsIDocument* document = aContentViewer->GetDocument(); if (document) { document->SetBaseURI(baseURI); } } return rv; } //***************************************************************************** // nsDocShell::nsIAuthPromptProvider //***************************************************************************** NS_IMETHODIMP nsDocShell::GetAuthPrompt(uint32_t aPromptReason, const nsIID& aIID, void** aResult) { // a priority prompt request will override a false mAllowAuth setting bool priorityPrompt = (aPromptReason == PROMPT_PROXY); if (!mAllowAuth && !priorityPrompt) { return NS_ERROR_NOT_AVAILABLE; } // we're either allowing auth, or it's a proxy request nsresult rv; nsCOMPtr<nsIPromptFactory> wwatch = do_GetService(NS_WINDOWWATCHER_CONTRACTID, &rv); NS_ENSURE_SUCCESS(rv, rv); rv = EnsureScriptEnvironment(); NS_ENSURE_SUCCESS(rv, rv); // Get the an auth prompter for our window so that the parenting // of the dialogs works as it should when using tabs. return wwatch->GetPrompt(mScriptGlobal->AsOuter(), aIID, reinterpret_cast<void**>(aResult)); } //***************************************************************************** // nsDocShell::nsILoadContext //***************************************************************************** NS_IMETHODIMP nsDocShell::GetAssociatedWindow(mozIDOMWindowProxy** aWindow) { CallGetInterface(this, aWindow); return NS_OK; } NS_IMETHODIMP nsDocShell::GetTopWindow(mozIDOMWindowProxy** aWindow) { nsCOMPtr<nsPIDOMWindowOuter> win = GetWindow(); if (win) { win = win->GetTop(); } win.forget(aWindow); return NS_OK; } NS_IMETHODIMP nsDocShell::GetTopFrameElement(nsIDOMElement** aElement) { *aElement = nullptr; nsCOMPtr<nsPIDOMWindowOuter> win = GetWindow(); if (!win) { return NS_OK; } nsCOMPtr<nsPIDOMWindowOuter> top = win->GetScriptableTop(); NS_ENSURE_TRUE(top, NS_ERROR_FAILURE); // GetFrameElementInternal, /not/ GetScriptableFrameElement -- if |top| is // inside <iframe mozbrowser>, we want to return the iframe, not null. // And we want to cross the content/chrome boundary. nsCOMPtr<nsIDOMElement> elt = do_QueryInterface(top->GetFrameElementInternal()); elt.forget(aElement); return NS_OK; } NS_IMETHODIMP nsDocShell::GetNestedFrameId(uint64_t* aId) { *aId = 0; return NS_OK; } NS_IMETHODIMP nsDocShell::IsTrackingProtectionOn(bool* aIsTrackingProtectionOn) { if (Preferences::GetBool("privacy.trackingprotection.enabled", false)) { *aIsTrackingProtectionOn = true; } else if (UsePrivateBrowsing() && Preferences::GetBool("privacy.trackingprotection.pbmode.enabled", false)) { *aIsTrackingProtectionOn = true; } else { *aIsTrackingProtectionOn = false; } return NS_OK; } NS_IMETHODIMP nsDocShell::GetIsContent(bool* aIsContent) { *aIsContent = (mItemType == typeContent); return NS_OK; } bool nsDocShell::IsOKToLoadURI(nsIURI* aURI) { NS_PRECONDITION(aURI, "Must have a URI!"); if (!mFiredUnloadEvent) { return true; } if (!mLoadingURI) { return false; } nsCOMPtr<nsIScriptSecurityManager> secMan = do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID); return secMan && NS_SUCCEEDED(secMan->CheckSameOriginURI(aURI, mLoadingURI, false)); } // // Routines for selection and clipboard // nsresult nsDocShell::GetControllerForCommand(const char* aCommand, nsIController** aResult) { NS_ENSURE_ARG_POINTER(aResult); *aResult = nullptr; NS_ENSURE_TRUE(mScriptGlobal, NS_ERROR_FAILURE); nsCOMPtr<nsPIWindowRoot> root = mScriptGlobal->GetTopWindowRoot(); NS_ENSURE_TRUE(root, NS_ERROR_FAILURE); return root->GetControllerForCommand(aCommand, aResult); } NS_IMETHODIMP nsDocShell::IsCommandEnabled(const char* aCommand, bool* aResult) { NS_ENSURE_ARG_POINTER(aResult); *aResult = false; nsresult rv = NS_ERROR_FAILURE; nsCOMPtr<nsIController> controller; rv = GetControllerForCommand(aCommand, getter_AddRefs(controller)); if (controller) { rv = controller->IsCommandEnabled(aCommand, aResult); } return rv; } NS_IMETHODIMP nsDocShell::DoCommand(const char* aCommand) { nsresult rv = NS_ERROR_FAILURE; nsCOMPtr<nsIController> controller; rv = GetControllerForCommand(aCommand, getter_AddRefs(controller)); if (controller) { rv = controller->DoCommand(aCommand); } return rv; } NS_IMETHODIMP nsDocShell::DoCommandWithParams(const char* aCommand, nsICommandParams* aParams) { nsCOMPtr<nsIController> controller; nsresult rv = GetControllerForCommand(aCommand, getter_AddRefs(controller)); if (NS_WARN_IF(NS_FAILED(rv))) { return rv; } nsCOMPtr<nsICommandController> commandController = do_QueryInterface(controller, &rv); if (NS_WARN_IF(NS_FAILED(rv))) { return rv; } return commandController->DoCommandWithParams(aCommand, aParams); } nsresult nsDocShell::EnsureCommandHandler() { if (!mCommandManager) { nsCOMPtr<nsPICommandUpdater> commandUpdater = do_CreateInstance("@mozilla.org/embedcomp/command-manager;1"); if (!commandUpdater) { return NS_ERROR_OUT_OF_MEMORY; } nsCOMPtr<nsPIDOMWindowOuter> domWindow = GetWindow(); nsresult rv = commandUpdater->Init(domWindow); if (NS_SUCCEEDED(rv)) { mCommandManager = do_QueryInterface(commandUpdater); } } return mCommandManager ? NS_OK : NS_ERROR_FAILURE; } NS_IMETHODIMP nsDocShell::CanCutSelection(bool* aResult) { return IsCommandEnabled("cmd_cut", aResult); } NS_IMETHODIMP nsDocShell::CanCopySelection(bool* aResult) { return IsCommandEnabled("cmd_copy", aResult); } NS_IMETHODIMP nsDocShell::CanCopyLinkLocation(bool* aResult) { return IsCommandEnabled("cmd_copyLink", aResult); } NS_IMETHODIMP nsDocShell::CanCopyImageLocation(bool* aResult) { return IsCommandEnabled("cmd_copyImageLocation", aResult); } NS_IMETHODIMP nsDocShell::CanCopyImageContents(bool* aResult) { return IsCommandEnabled("cmd_copyImageContents", aResult); } NS_IMETHODIMP nsDocShell::CanPaste(bool* aResult) { return IsCommandEnabled("cmd_paste", aResult); } NS_IMETHODIMP nsDocShell::CutSelection(void) { return DoCommand("cmd_cut"); } NS_IMETHODIMP nsDocShell::CopySelection(void) { return DoCommand("cmd_copy"); } NS_IMETHODIMP nsDocShell::CopyLinkLocation(void) { return DoCommand("cmd_copyLink"); } NS_IMETHODIMP nsDocShell::CopyImageLocation(void) { return DoCommand("cmd_copyImageLocation"); } NS_IMETHODIMP nsDocShell::CopyImageContents(void) { return DoCommand("cmd_copyImageContents"); } NS_IMETHODIMP nsDocShell::Paste(void) { return DoCommand("cmd_paste"); } NS_IMETHODIMP nsDocShell::SelectAll(void) { return DoCommand("cmd_selectAll"); } // // SelectNone // // Collapses the current selection, insertion point ends up at beginning // of previous selection. // NS_IMETHODIMP nsDocShell::SelectNone(void) { return DoCommand("cmd_selectNone"); } // link handling class OnLinkClickEvent : public Runnable { public: OnLinkClickEvent(nsDocShell* aHandler, nsIContent* aContent, nsIURI* aURI, const char16_t* aTargetSpec, const nsAString& aFileName, nsIInputStream* aPostDataStream, nsIInputStream* aHeadersDataStream, bool aIsTrusted); NS_IMETHOD Run() override { nsAutoPopupStatePusher popupStatePusher(mPopupState); // We need to set up an AutoJSAPI here for the following reason: When we do // OnLinkClickSync we'll eventually end up in nsGlobalWindow::OpenInternal // which only does popup blocking if !LegacyIsCallerChromeOrNativeCode(). // So we need to fake things so that we don't look like native code as far // as LegacyIsCallerNativeCode() is concerned. AutoJSAPI jsapi; if (mIsTrusted || jsapi.Init(mContent->OwnerDoc()->GetScopeObject())) { mHandler->OnLinkClickSync(mContent, mURI, mTargetSpec.get(), mFileName, mPostDataStream, mHeadersDataStream, nullptr, nullptr); } return NS_OK; } private: RefPtr<nsDocShell> mHandler; nsCOMPtr<nsIURI> mURI; nsString mTargetSpec; nsString mFileName; nsCOMPtr<nsIInputStream> mPostDataStream; nsCOMPtr<nsIInputStream> mHeadersDataStream; nsCOMPtr<nsIContent> mContent; PopupControlState mPopupState; bool mIsTrusted; }; OnLinkClickEvent::OnLinkClickEvent(nsDocShell* aHandler, nsIContent* aContent, nsIURI* aURI, const char16_t* aTargetSpec, const nsAString& aFileName, nsIInputStream* aPostDataStream, nsIInputStream* aHeadersDataStream, bool aIsTrusted) : mHandler(aHandler) , mURI(aURI) , mTargetSpec(aTargetSpec) , mFileName(aFileName) , mPostDataStream(aPostDataStream) , mHeadersDataStream(aHeadersDataStream) , mContent(aContent) , mPopupState(mHandler->mScriptGlobal->GetPopupControlState()) , mIsTrusted(aIsTrusted) { } NS_IMETHODIMP nsDocShell::OnLinkClick(nsIContent* aContent, nsIURI* aURI, const char16_t* aTargetSpec, const nsAString& aFileName, nsIInputStream* aPostDataStream, nsIInputStream* aHeadersDataStream, bool aIsTrusted) { NS_ASSERTION(NS_IsMainThread(), "wrong thread"); if (!IsNavigationAllowed() || !IsOKToLoadURI(aURI)) { return NS_OK; } // On history navigation through Back/Forward buttons, don't execute // automatic JavaScript redirection such as |anchorElement.click()| or // |formElement.submit()|. // // XXX |formElement.submit()| bypasses this checkpoint because it calls // nsDocShell::OnLinkClickSync(...) instead. if (ShouldBlockLoadingForBackButton()) { return NS_OK; } if (aContent->IsEditable()) { return NS_OK; } nsresult rv = NS_ERROR_FAILURE; nsAutoString target; nsCOMPtr<nsIWebBrowserChrome3> browserChrome3 = do_GetInterface(mTreeOwner); if (browserChrome3) { nsCOMPtr<nsIDOMNode> linkNode = do_QueryInterface(aContent); nsAutoString oldTarget(aTargetSpec); rv = browserChrome3->OnBeforeLinkTraversal(oldTarget, aURI, linkNode, mIsAppTab, target); } if (NS_FAILED(rv)) { target = aTargetSpec; } nsCOMPtr<nsIRunnable> ev = new OnLinkClickEvent(this, aContent, aURI, target.get(), aFileName, aPostDataStream, aHeadersDataStream, aIsTrusted); return NS_DispatchToCurrentThread(ev); } NS_IMETHODIMP nsDocShell::OnLinkClickSync(nsIContent* aContent, nsIURI* aURI, const char16_t* aTargetSpec, const nsAString& aFileName, nsIInputStream* aPostDataStream, nsIInputStream* aHeadersDataStream, nsIDocShell** aDocShell, nsIRequest** aRequest) { // Initialize the DocShell / Request if (aDocShell) { *aDocShell = nullptr; } if (aRequest) { *aRequest = nullptr; } if (!IsNavigationAllowed() || !IsOKToLoadURI(aURI)) { return NS_OK; } // XXX When the linking node was HTMLFormElement, it is synchronous event. // That is, the caller of this method is not |OnLinkClickEvent::Run()| // but |HTMLFormElement::SubmitSubmission(...)|. if (aContent->IsHTMLElement(nsGkAtoms::form) && ShouldBlockLoadingForBackButton()) { return NS_OK; } if (aContent->IsEditable()) { return NS_OK; } { // defer to an external protocol handler if necessary... nsCOMPtr<nsIExternalProtocolService> extProtService = do_GetService(NS_EXTERNALPROTOCOLSERVICE_CONTRACTID); if (extProtService) { nsAutoCString scheme; aURI->GetScheme(scheme); if (!scheme.IsEmpty()) { // if the URL scheme does not correspond to an exposed protocol, then we // need to hand this link click over to the external protocol handler. bool isExposed; nsresult rv = extProtService->IsExposedProtocol(scheme.get(), &isExposed); if (NS_SUCCEEDED(rv) && !isExposed) { return extProtService->LoadURI(aURI, this); } } } } uint32_t flags = INTERNAL_LOAD_FLAGS_NONE; if (IsElementAnchor(aContent)) { MOZ_ASSERT(aContent->IsHTMLElement()); nsAutoString referrer; aContent->GetAttr(kNameSpaceID_None, nsGkAtoms::rel, referrer); nsWhitespaceTokenizerTemplate<nsContentUtils::IsHTMLWhitespace> tok(referrer); while (tok.hasMoreTokens()) { const nsAString& token = tok.nextToken(); if (token.LowerCaseEqualsLiteral("noreferrer")) { flags |= INTERNAL_LOAD_FLAGS_DONT_SEND_REFERRER | INTERNAL_LOAD_FLAGS_NO_OPENER; // We now have all the flags we could possibly have, so just stop. break; } if (token.LowerCaseEqualsLiteral("noopener")) { flags |= INTERNAL_LOAD_FLAGS_NO_OPENER; } } } // Get the owner document of the link that was clicked, this will be // the document that the link is in, or the last document that the // link was in. From that document, we'll get the URI to use as the // referer, since the current URI in this docshell may be a // new document that we're in the process of loading. nsCOMPtr<nsIDocument> refererDoc = aContent->OwnerDoc(); NS_ENSURE_TRUE(refererDoc, NS_ERROR_UNEXPECTED); // Now check that the refererDoc's inner window is the current inner // window for mScriptGlobal. If it's not, then we don't want to // follow this link. nsPIDOMWindowInner* refererInner = refererDoc->GetInnerWindow(); NS_ENSURE_TRUE(refererInner, NS_ERROR_UNEXPECTED); if (!mScriptGlobal || mScriptGlobal->AsOuter()->GetCurrentInnerWindow() != refererInner) { // We're no longer the current inner window return NS_OK; } nsCOMPtr<nsIURI> referer = refererDoc->GetDocumentURI(); uint32_t refererPolicy = refererDoc->GetReferrerPolicy(); // get referrer attribute from clicked link and parse it // if per element referrer is enabled, the element referrer overrules // the document wide referrer if (IsElementAnchor(aContent)) { net::ReferrerPolicy refPolEnum = aContent->AsElement()->GetReferrerPolicyAsEnum(); if (refPolEnum != net::RP_Unset) { refererPolicy = refPolEnum; } } // referer could be null here in some odd cases, but that's ok, // we'll just load the link w/o sending a referer in those cases. nsAutoString target(aTargetSpec); // If this is an anchor element, grab its type property to use as a hint nsAutoString typeHint; nsCOMPtr<nsIDOMHTMLAnchorElement> anchor(do_QueryInterface(aContent)); if (anchor) { anchor->GetType(typeHint); NS_ConvertUTF16toUTF8 utf8Hint(typeHint); nsAutoCString type, dummy; NS_ParseRequestContentType(utf8Hint, type, dummy); CopyUTF8toUTF16(type, typeHint); } // Clone the URI now, in case a content policy or something messes // with it under InternalLoad; we do _not_ want to change the URI // our caller passed in. nsCOMPtr<nsIURI> clonedURI; aURI->Clone(getter_AddRefs(clonedURI)); if (!clonedURI) { return NS_ERROR_OUT_OF_MEMORY; } nsresult rv = InternalLoad(clonedURI, // New URI nullptr, // Original URI false, // LoadReplace referer, // Referer URI refererPolicy, // Referer policy aContent->NodePrincipal(), // Triggering is our node's // principal aContent->NodePrincipal(), flags, target, // Window target NS_LossyConvertUTF16toASCII(typeHint).get(), aFileName, // Download as file aPostDataStream, // Post data stream aHeadersDataStream, // Headers stream LOAD_LINK, // Load type nullptr, // No SHEntry true, // first party site NullString(), // No srcdoc this, // We are the source nullptr, // baseURI not needed aDocShell, // DocShell out-param aRequest); // Request out-param if (NS_SUCCEEDED(rv)) { DispatchPings(this, aContent, aURI, referer, refererPolicy); } return rv; } NS_IMETHODIMP nsDocShell::OnOverLink(nsIContent* aContent, nsIURI* aURI, const char16_t* aTargetSpec) { if (aContent->IsEditable()) { return NS_OK; } nsCOMPtr<nsIWebBrowserChrome2> browserChrome2 = do_GetInterface(mTreeOwner); nsresult rv = NS_ERROR_FAILURE; nsCOMPtr<nsIWebBrowserChrome> browserChrome; if (!browserChrome2) { browserChrome = do_GetInterface(mTreeOwner); if (!browserChrome) { return rv; } } nsCOMPtr<nsITextToSubURI> textToSubURI = do_GetService(NS_ITEXTTOSUBURI_CONTRACTID, &rv); if (NS_FAILED(rv)) { return rv; } // use url origin charset to unescape the URL nsAutoCString charset; rv = aURI->GetOriginCharset(charset); NS_ENSURE_SUCCESS(rv, rv); nsAutoCString spec; rv = aURI->GetSpec(spec); NS_ENSURE_SUCCESS(rv, rv); nsAutoString uStr; rv = textToSubURI->UnEscapeURIForUI(charset, spec, uStr); NS_ENSURE_SUCCESS(rv, rv); mozilla::net::PredictorPredict(aURI, mCurrentURI, nsINetworkPredictor::PREDICT_LINK, this, nullptr); if (browserChrome2) { nsCOMPtr<nsIDOMElement> element = do_QueryInterface(aContent); rv = browserChrome2->SetStatusWithContext(nsIWebBrowserChrome::STATUS_LINK, uStr, element); } else { rv = browserChrome->SetStatus(nsIWebBrowserChrome::STATUS_LINK, uStr.get()); } return rv; } NS_IMETHODIMP nsDocShell::OnLeaveLink() { nsCOMPtr<nsIWebBrowserChrome> browserChrome(do_GetInterface(mTreeOwner)); nsresult rv = NS_ERROR_FAILURE; if (browserChrome) { rv = browserChrome->SetStatus(nsIWebBrowserChrome::STATUS_LINK, EmptyString().get()); } return rv; } bool nsDocShell::ShouldBlockLoadingForBackButton() { if (!(mLoadType & LOAD_CMD_HISTORY) || EventStateManager::IsHandlingUserInput() || !Preferences::GetBool("accessibility.blockjsredirection")) { return false; } bool canGoForward = false; GetCanGoForward(&canGoForward); return canGoForward; } bool nsDocShell::PluginsAllowedInCurrentDoc() { bool pluginsAllowed = false; if (!mContentViewer) { return false; } nsIDocument* doc = mContentViewer->GetDocument(); if (!doc) { return false; } doc->GetAllowPlugins(&pluginsAllowed); return pluginsAllowed; } //---------------------------------------------------------------------- // Web Shell Services API // This functions is only called when a new charset is detected in loading a // document. Its name should be changed to "CharsetReloadDocument" NS_IMETHODIMP nsDocShell::ReloadDocument(const char* aCharset, int32_t aSource) { // XXX hack. keep the aCharset and aSource wait to pick it up nsCOMPtr<nsIContentViewer> cv; NS_ENSURE_SUCCESS(GetContentViewer(getter_AddRefs(cv)), NS_ERROR_FAILURE); if (cv) { int32_t hint; cv->GetHintCharacterSetSource(&hint); if (aSource > hint) { nsCString charset(aCharset); cv->SetHintCharacterSet(charset); cv->SetHintCharacterSetSource(aSource); if (eCharsetReloadRequested != mCharsetReloadState) { mCharsetReloadState = eCharsetReloadRequested; return Reload(LOAD_FLAGS_CHARSET_CHANGE); } } } // return failure if this request is not accepted due to mCharsetReloadState return NS_ERROR_DOCSHELL_REQUEST_REJECTED; } NS_IMETHODIMP nsDocShell::StopDocumentLoad(void) { if (eCharsetReloadRequested != mCharsetReloadState) { Stop(nsIWebNavigation::STOP_ALL); return NS_OK; } // return failer if this request is not accepted due to mCharsetReloadState return NS_ERROR_DOCSHELL_REQUEST_REJECTED; } NS_IMETHODIMP nsDocShell::GetPrintPreview(nsIWebBrowserPrint** aPrintPreview) { *aPrintPreview = nullptr; #if NS_PRINT_PREVIEW nsCOMPtr<nsIDocumentViewerPrint> print = do_QueryInterface(mContentViewer); if (!print || !print->IsInitializedForPrintPreview()) { Stop(nsIWebNavigation::STOP_ALL); nsCOMPtr<nsIPrincipal> principal = nsNullPrincipal::CreateWithInheritedAttributes(this); nsresult rv = CreateAboutBlankContentViewer(principal, nullptr); NS_ENSURE_SUCCESS(rv, rv); print = do_QueryInterface(mContentViewer); NS_ENSURE_STATE(print); print->InitializeForPrintPreview(); } nsCOMPtr<nsIWebBrowserPrint> result = do_QueryInterface(print); result.forget(aPrintPreview); return NS_OK; #else return NS_ERROR_NOT_IMPLEMENTED; #endif } #ifdef DEBUG unsigned long nsDocShell::gNumberOfDocShells = 0; #endif NS_IMETHODIMP nsDocShell::GetCanExecuteScripts(bool* aResult) { *aResult = mCanExecuteScripts; return NS_OK; } /* [infallible] */ NS_IMETHODIMP nsDocShell::SetFrameType(uint32_t aFrameType) { mFrameType = aFrameType; return NS_OK; } /* [infallible] */ NS_IMETHODIMP nsDocShell::GetFrameType(uint32_t* aFrameType) { *aFrameType = mFrameType; return NS_OK; } /* [infallible] */ NS_IMETHODIMP nsDocShell::GetIsApp(bool* aIsApp) { *aIsApp = (mFrameType == FRAME_TYPE_APP); return NS_OK; } /* [infallible] */ NS_IMETHODIMP nsDocShell::GetIsMozBrowserOrApp(bool* aIsMozBrowserOrApp) { *aIsMozBrowserOrApp = (mFrameType != FRAME_TYPE_REGULAR); return NS_OK; } uint32_t nsDocShell::GetInheritedFrameType() { if (mFrameType != FRAME_TYPE_REGULAR) { return mFrameType; } nsCOMPtr<nsIDocShellTreeItem> parentAsItem; GetSameTypeParent(getter_AddRefs(parentAsItem)); nsCOMPtr<nsIDocShell> parent = do_QueryInterface(parentAsItem); if (!parent) { return FRAME_TYPE_REGULAR; } return static_cast<nsDocShell*>(parent.get())->GetInheritedFrameType(); } /* [infallible] */ NS_IMETHODIMP nsDocShell::GetIsIsolatedMozBrowserElement(bool* aIsIsolatedMozBrowserElement) { bool result = mFrameType == FRAME_TYPE_BROWSER && mOriginAttributes.mInIsolatedMozBrowser; *aIsIsolatedMozBrowserElement = result; return NS_OK; } /* [infallible] */ NS_IMETHODIMP nsDocShell::GetIsInIsolatedMozBrowserElement(bool* aIsInIsolatedMozBrowserElement) { MOZ_ASSERT(!mOriginAttributes.mInIsolatedMozBrowser || (GetInheritedFrameType() == FRAME_TYPE_BROWSER), "Isolated mozbrowser should only be true inside browser frames"); bool result = (GetInheritedFrameType() == FRAME_TYPE_BROWSER) && mOriginAttributes.mInIsolatedMozBrowser; *aIsInIsolatedMozBrowserElement = result; return NS_OK; } /* [infallible] */ NS_IMETHODIMP nsDocShell::GetIsInMozBrowserOrApp(bool* aIsInMozBrowserOrApp) { *aIsInMozBrowserOrApp = (GetInheritedFrameType() != FRAME_TYPE_REGULAR); return NS_OK; } /* [infallible] */ NS_IMETHODIMP nsDocShell::GetIsTopLevelContentDocShell(bool* aIsTopLevelContentDocShell) { *aIsTopLevelContentDocShell = false; if (mItemType == typeContent) { nsCOMPtr<nsIDocShellTreeItem> root; GetSameTypeRootTreeItem(getter_AddRefs(root)); *aIsTopLevelContentDocShell = root.get() == static_cast<nsIDocShellTreeItem*>(this); } return NS_OK; } /* [infallible] */ NS_IMETHODIMP nsDocShell::GetAppId(uint32_t* aAppId) { if (mOriginAttributes.mAppId != nsIScriptSecurityManager::UNKNOWN_APP_ID) { *aAppId = mOriginAttributes.mAppId; return NS_OK; } nsCOMPtr<nsIDocShell> parent; GetSameTypeParentIgnoreBrowserAndAppBoundaries(getter_AddRefs(parent)); if (!parent) { *aAppId = nsIScriptSecurityManager::NO_APP_ID; return NS_OK; } return parent->GetAppId(aAppId); } // Implements nsILoadContext.originAttributes NS_IMETHODIMP nsDocShell::GetOriginAttributes(JS::MutableHandle<JS::Value> aVal) { JSContext* cx = nsContentUtils::GetCurrentJSContext(); MOZ_ASSERT(cx); return GetOriginAttributes(cx, aVal); } // Implements nsIDocShell.GetOriginAttributes() NS_IMETHODIMP nsDocShell::GetOriginAttributes(JSContext* aCx, JS::MutableHandle<JS::Value> aVal) { bool ok = ToJSValue(aCx, mOriginAttributes, aVal); NS_ENSURE_TRUE(ok, NS_ERROR_FAILURE); return NS_OK; } bool nsDocShell::CanSetOriginAttributes() { MOZ_ASSERT(mChildList.IsEmpty()); if (!mChildList.IsEmpty()) { return false; } // TODO: Bug 1273058 - mContentViewer should be null when setting origin // attributes. if (mContentViewer) { nsIDocument* doc = mContentViewer->GetDocument(); if (doc) { nsIURI* uri = doc->GetDocumentURI(); if (!uri) { return false; } nsCString uriSpec = uri->GetSpecOrDefault(); MOZ_ASSERT(uriSpec.EqualsLiteral("about:blank")); if (!uriSpec.EqualsLiteral("about:blank")) { return false; } } } return true; } nsresult nsDocShell::SetOriginAttributes(const DocShellOriginAttributes& aAttrs) { if (!CanSetOriginAttributes()) { return NS_ERROR_FAILURE; } AssertOriginAttributesMatchPrivateBrowsing(); mOriginAttributes = aAttrs; bool isPrivate = mOriginAttributes.mPrivateBrowsingId > 0; // Chrome docshell can not contain OriginAttributes.mPrivateBrowsingId if (mItemType == typeChrome && isPrivate) { mOriginAttributes.mPrivateBrowsingId = 0; } SetPrivateBrowsing(isPrivate); return NS_OK; } NS_IMETHODIMP nsDocShell::SetOriginAttributesBeforeLoading(JS::Handle<JS::Value> aOriginAttributes) { if (!aOriginAttributes.isObject()) { return NS_ERROR_INVALID_ARG; } AutoJSAPI jsapi; if (!jsapi.Init(&aOriginAttributes.toObject())) { return NS_ERROR_UNEXPECTED; } JSContext* cx = jsapi.cx(); if (NS_WARN_IF(!cx)) { return NS_ERROR_FAILURE; } DocShellOriginAttributes attrs; if (!aOriginAttributes.isObject() || !attrs.Init(cx, aOriginAttributes)) { return NS_ERROR_INVALID_ARG; } return SetOriginAttributes(attrs); } NS_IMETHODIMP nsDocShell::SetOriginAttributes(JS::Handle<JS::Value> aOriginAttributes, JSContext* aCx) { DocShellOriginAttributes attrs; if (!aOriginAttributes.isObject() || !attrs.Init(aCx, aOriginAttributes)) { return NS_ERROR_INVALID_ARG; } return SetOriginAttributes(attrs); } NS_IMETHODIMP nsDocShell::GetAppManifestURL(nsAString& aAppManifestURL) { uint32_t appId = nsIDocShell::GetAppId(); if (appId != nsIScriptSecurityManager::NO_APP_ID && appId != nsIScriptSecurityManager::UNKNOWN_APP_ID) { nsCOMPtr<nsIAppsService> appsService = do_GetService(APPS_SERVICE_CONTRACTID); NS_ASSERTION(appsService, "No AppsService available"); appsService->GetManifestURLByLocalId(appId, aAppManifestURL); } else { aAppManifestURL.SetLength(0); } return NS_OK; } NS_IMETHODIMP nsDocShell::GetAsyncPanZoomEnabled(bool* aOut) { if (nsIPresShell* presShell = GetPresShell()) { *aOut = presShell->AsyncPanZoomEnabled(); return NS_OK; } // If we don't have a presShell, fall back to the default platform value of // whether or not APZ is enabled. *aOut = gfxPlatform::AsyncPanZoomEnabled(); return NS_OK; } bool nsDocShell::HasUnloadedParent() { RefPtr<nsDocShell> parent = GetParentDocshell(); while (parent) { bool inUnload = false; parent->GetIsInUnload(&inUnload); if (inUnload) { return true; } parent = parent->GetParentDocshell(); } return false; } bool nsDocShell::IsInvisible() { return mInvisible; } void nsDocShell::SetInvisible(bool aInvisible) { mInvisible = aInvisible; } void nsDocShell::SetOpener(nsITabParent* aOpener) { mOpener = do_GetWeakReference(aOpener); } nsITabParent* nsDocShell::GetOpener() { nsCOMPtr<nsITabParent> opener(do_QueryReferent(mOpener)); return opener; } // The caller owns |aAsyncCause| here. void nsDocShell::NotifyJSRunToCompletionStart(const char* aReason, const char16_t* aFunctionName, const char16_t* aFilename, const uint32_t aLineNumber, JS::Handle<JS::Value> aAsyncStack, const char* aAsyncCause) { // If first start, mark interval start. if (mJSRunToCompletionDepth == 0) { RefPtr<TimelineConsumers> timelines = TimelineConsumers::Get(); if (timelines && timelines->HasConsumer(this)) { timelines->AddMarkerForDocShell(this, Move( mozilla::MakeUnique<JavascriptTimelineMarker>( aReason, aFunctionName, aFilename, aLineNumber, MarkerTracingType::START, aAsyncStack, aAsyncCause))); } } mJSRunToCompletionDepth++; } void nsDocShell::NotifyJSRunToCompletionStop() { mJSRunToCompletionDepth--; // If last stop, mark interval end. if (mJSRunToCompletionDepth == 0) { RefPtr<TimelineConsumers> timelines = TimelineConsumers::Get(); if (timelines && timelines->HasConsumer(this)) { timelines->AddMarkerForDocShell(this, "Javascript", MarkerTracingType::END); } } } void nsDocShell::MaybeNotifyKeywordSearchLoading(const nsString& aProvider, const nsString& aKeyword) { if (aProvider.IsEmpty()) { return; } if (XRE_IsContentProcess()) { dom::ContentChild* contentChild = dom::ContentChild::GetSingleton(); if (contentChild) { contentChild->SendNotifyKeywordSearchLoading(aProvider, aKeyword); } return; } #ifdef MOZ_TOOLKIT_SEARCH nsCOMPtr<nsIBrowserSearchService> searchSvc = do_GetService("@mozilla.org/browser/search-service;1"); if (searchSvc) { nsCOMPtr<nsISearchEngine> searchEngine; searchSvc->GetEngineByName(aProvider, getter_AddRefs(searchEngine)); if (searchEngine) { nsCOMPtr<nsIObserverService> obsSvc = services::GetObserverService(); if (obsSvc) { // Note that "keyword-search" refers to a search via the url // bar, not a bookmarks keyword search. obsSvc->NotifyObservers(searchEngine, "keyword-search", aKeyword.get()); } } } #endif } NS_IMETHODIMP nsDocShell::ShouldPrepareForIntercept(nsIURI* aURI, bool aIsNonSubresourceRequest, bool* aShouldIntercept) { *aShouldIntercept = false; // No in private browsing if (UsePrivateBrowsing()) { return NS_OK; } if (mSandboxFlags) { // If we're sandboxed, don't intercept. return NS_OK; } RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance(); if (!swm) { return NS_OK; } nsresult result; nsCOMPtr<mozIThirdPartyUtil> thirdPartyUtil = do_GetService(THIRDPARTYUTIL_CONTRACTID, &result); NS_ENSURE_SUCCESS(result, result); if (mCurrentURI && nsContentUtils::CookiesBehavior() == nsICookieService::BEHAVIOR_REJECT_FOREIGN) { nsAutoCString uriSpec; if (!(mCurrentURI->GetSpecOrDefault().EqualsLiteral("about:blank"))) { // Reject the interception of third-party iframes if the cookie behaviour // is set to reject all third-party cookies (1). In case that this pref // is not set or can't be read, we default to allow all cookies (0) as // this is the default value in all.js. bool isThirdPartyURI = true; result = thirdPartyUtil->IsThirdPartyURI(mCurrentURI, aURI, &isThirdPartyURI); if (NS_FAILED(result)) { return result; } if (isThirdPartyURI) { return NS_OK; } } } if (aIsNonSubresourceRequest) { PrincipalOriginAttributes attrs; attrs.InheritFromDocShellToDoc(mOriginAttributes, aURI); nsCOMPtr<nsIPrincipal> principal = BasePrincipal::CreateCodebasePrincipal(aURI, attrs); *aShouldIntercept = swm->IsAvailable(principal, aURI); return NS_OK; } nsCOMPtr<nsIDocument> doc = GetDocument(); if (!doc) { return NS_ERROR_NOT_AVAILABLE; } ErrorResult rv; *aShouldIntercept = swm->IsControlled(doc, rv); if (NS_WARN_IF(rv.Failed())) { return rv.StealNSResult(); } return NS_OK; } NS_IMETHODIMP nsDocShell::ChannelIntercepted(nsIInterceptedChannel* aChannel) { RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance(); if (!swm) { aChannel->Cancel(NS_ERROR_INTERCEPTION_FAILED); return NS_OK; } nsCOMPtr<nsIChannel> channel; nsresult rv = aChannel->GetChannel(getter_AddRefs(channel)); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr<nsIDocument> doc; bool isSubresourceLoad = !nsContentUtils::IsNonSubresourceRequest(channel); if (isSubresourceLoad) { doc = GetDocument(); if (!doc) { return NS_ERROR_NOT_AVAILABLE; } } else { // For top-level navigations, save a document ID which will be passed to // the FetchEvent as the clientId later on. rv = nsIDocument::GenerateDocumentId(mInterceptedDocumentId); NS_ENSURE_SUCCESS(rv, rv); } bool isReload = mLoadType & LOAD_CMD_RELOAD; nsCOMPtr<nsIURI> uri; rv = channel->GetURI(getter_AddRefs(uri)); NS_ENSURE_SUCCESS(rv, rv); PrincipalOriginAttributes attrs; attrs.InheritFromDocShellToDoc(mOriginAttributes, uri); ErrorResult error; swm->DispatchFetchEvent(attrs, doc, mInterceptedDocumentId, aChannel, isReload, isSubresourceLoad, error); if (NS_WARN_IF(error.Failed())) { return error.StealNSResult(); } return NS_OK; } bool nsDocShell::InFrameSwap() { RefPtr<nsDocShell> shell = this; do { if (shell->mInFrameSwap) { return true; } shell = shell->GetParentDocshell(); } while (shell); return false; } NS_IMETHODIMP nsDocShell::IssueWarning(uint32_t aWarning, bool aAsError) { if (mContentViewer) { nsCOMPtr<nsIDocument> doc = mContentViewer->GetDocument(); if (doc) { doc->WarnOnceAbout(nsIDocument::DeprecatedOperations(aWarning), aAsError); } } return NS_OK; } NS_IMETHODIMP nsDocShell::GetEditingSession(nsIEditingSession** aEditSession) { if (!NS_SUCCEEDED(EnsureEditorData())) { return NS_ERROR_FAILURE; } mEditorData->GetEditingSession(aEditSession); return *aEditSession ? NS_OK : NS_ERROR_FAILURE; } NS_IMETHODIMP nsDocShell::GetScriptableTabChild(nsITabChild** aTabChild) { *aTabChild = GetTabChild().take(); return *aTabChild ? NS_OK : NS_ERROR_FAILURE; } already_AddRefed<nsITabChild> nsDocShell::GetTabChild() { nsCOMPtr<nsIDocShellTreeOwner> owner(mTreeOwner); nsCOMPtr<nsITabChild> tc = do_GetInterface(owner); return tc.forget(); } nsICommandManager* nsDocShell::GetCommandManager() { NS_ENSURE_SUCCESS(EnsureCommandHandler(), nullptr); return mCommandManager; } NS_IMETHODIMP nsDocShell::GetProcessLockReason(uint32_t* aReason) { MOZ_ASSERT(aReason); nsPIDOMWindowOuter* outer = GetWindow(); MOZ_ASSERT(outer); // Check if we are a toplevel window if (outer->GetScriptableParentOrNull()) { *aReason = PROCESS_LOCK_IFRAME; return NS_OK; } // If we have any other toplevel windows in our tab group, then we cannot // perform the navigation. nsTArray<nsPIDOMWindowOuter*> toplevelWindows = outer->TabGroup()->GetTopLevelWindows(); if (toplevelWindows.Length() > 1) { *aReason = PROCESS_LOCK_RELATED_CONTEXTS; return NS_OK; } MOZ_ASSERT(toplevelWindows.Length() == 1); MOZ_ASSERT(toplevelWindows[0] == outer); // If we aren't in a content process, we cannot perform a cross-process load. if (!XRE_IsContentProcess()) { *aReason = PROCESS_LOCK_NON_CONTENT; return NS_OK; } *aReason = PROCESS_LOCK_NONE; return NS_OK; }