Add m-esr52 at 52.6.0

1 files changed, 495 insertions, 0 deletions

diff --git a/dom/fetch/InternalRequest.cpp b/dom/fetch/InternalRequest.cpp
new file mode 100644
index 000000000..85feabde3
--- /dev/null
+++ b/dom/fetch/InternalRequest.cpp
@@ -0,0 +1,495 @@
+/* -*- 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 "InternalRequest.h"
+
+#include "nsIContentPolicy.h"
+#include "nsIDocument.h"
+#include "nsStreamUtils.h"
+
+#include "mozilla/ErrorResult.h"
+#include "mozilla/dom/FetchTypes.h"
+#include "mozilla/dom/ScriptSettings.h"
+#include "mozilla/dom/workers/Workers.h"
+
+#include "WorkerPrivate.h"
+
+namespace mozilla {
+namespace dom {
+// The global is used to extract the principal.
+already_AddRefed<InternalRequest>
+InternalRequest::GetRequestConstructorCopy(nsIGlobalObject* aGlobal, ErrorResult& aRv) const
+{
+  MOZ_RELEASE_ASSERT(!mURLList.IsEmpty(), "Internal Request's urlList should not be empty when copied from constructor.");
+  RefPtr<InternalRequest> copy = new InternalRequest(mURLList.LastElement(),
+                                                     mFragment);
+  copy->SetMethod(mMethod);
+  copy->mHeaders = new InternalHeaders(*mHeaders);
+  copy->SetUnsafeRequest();
+  copy->mBodyStream = mBodyStream;
+  copy->mForceOriginHeader = true;
+  // The "client" is not stored in our implementation. Fetch API users should
+  // use the appropriate window/document/principal and other Gecko security
+  // mechanisms as appropriate.
+  copy->mSameOriginDataURL = true;
+  copy->mPreserveContentCodings = true;
+  copy->mReferrer = mReferrer;
+  copy->mReferrerPolicy = mReferrerPolicy;
+  copy->mEnvironmentReferrerPolicy = mEnvironmentReferrerPolicy;
+  copy->mIntegrity = mIntegrity;
+
+  copy->mContentPolicyType = mContentPolicyTypeOverridden ?
+                             mContentPolicyType :
+                             nsIContentPolicy::TYPE_FETCH;
+  copy->mMode = mMode;
+  copy->mCredentialsMode = mCredentialsMode;
+  copy->mCacheMode = mCacheMode;
+  copy->mRedirectMode = mRedirectMode;
+  copy->mCreatedByFetchEvent = mCreatedByFetchEvent;
+  copy->mContentPolicyTypeOverridden = mContentPolicyTypeOverridden;
+  return copy.forget();
+}
+
+already_AddRefed<InternalRequest>
+InternalRequest::Clone()
+{
+  RefPtr<InternalRequest> clone = new InternalRequest(*this);
+
+  if (!mBodyStream) {
+    return clone.forget();
+  }
+
+  nsCOMPtr<nsIInputStream> clonedBody;
+  nsCOMPtr<nsIInputStream> replacementBody;
+
+  nsresult rv = NS_CloneInputStream(mBodyStream, getter_AddRefs(clonedBody),
+                                    getter_AddRefs(replacementBody));
+  if (NS_WARN_IF(NS_FAILED(rv))) { return nullptr; }
+
+  clone->mBodyStream.swap(clonedBody);
+  if (replacementBody) {
+    mBodyStream.swap(replacementBody);
+  }
+  return clone.forget();
+}
+InternalRequest::InternalRequest(const nsACString& aURL,
+                                 const nsACString& aFragment)
+  : mMethod("GET")
+  , mHeaders(new InternalHeaders(HeadersGuardEnum::None))
+  , mContentPolicyType(nsIContentPolicy::TYPE_FETCH)
+  , mReferrer(NS_LITERAL_STRING(kFETCH_CLIENT_REFERRER_STR))
+  , mReferrerPolicy(ReferrerPolicy::_empty)
+  , mEnvironmentReferrerPolicy(net::RP_Default)
+  , mMode(RequestMode::No_cors)
+  , mCredentialsMode(RequestCredentials::Omit)
+  , mResponseTainting(LoadTainting::Basic)
+  , mCacheMode(RequestCache::Default)
+  , mRedirectMode(RequestRedirect::Follow)
+  , mAuthenticationFlag(false)
+  , mForceOriginHeader(false)
+  , mPreserveContentCodings(false)
+    // FIXME(nsm): This should be false by default, but will lead to the
+    // algorithm never loading data: URLs right now. See Bug 1018872 about
+    // how certain contexts will override it to set it to true. Fetch
+    // specification does not handle this yet.
+  , mSameOriginDataURL(true)
+  , mSkipServiceWorker(false)
+  , mSynchronous(false)
+  , mUnsafeRequest(false)
+  , mUseURLCredentials(false)
+{
+  MOZ_ASSERT(!aURL.IsEmpty());
+  AddURL(aURL, aFragment);
+}
+InternalRequest::InternalRequest(const nsACString& aURL,
+                                 const nsACString& aFragment,
+                                 const nsACString& aMethod,
+                                 already_AddRefed<InternalHeaders> aHeaders,
+                                 RequestCache aCacheMode,
+                                 RequestMode aMode,
+                                 RequestRedirect aRequestRedirect,
+                                 RequestCredentials aRequestCredentials,
+                                 const nsAString& aReferrer,
+                                 ReferrerPolicy aReferrerPolicy,
+                                 nsContentPolicyType aContentPolicyType,
+                                 const nsAString& aIntegrity)
+  : mMethod(aMethod)
+  , mHeaders(aHeaders)
+  , mContentPolicyType(aContentPolicyType)
+  , mReferrer(aReferrer)
+  , mReferrerPolicy(aReferrerPolicy)
+  , mEnvironmentReferrerPolicy(net::RP_Default)
+  , mMode(aMode)
+  , mCredentialsMode(aRequestCredentials)
+  , mResponseTainting(LoadTainting::Basic)
+  , mCacheMode(aCacheMode)
+  , mRedirectMode(aRequestRedirect)
+  , mIntegrity(aIntegrity)
+  , mAuthenticationFlag(false)
+  , mForceOriginHeader(false)
+  , mPreserveContentCodings(false)
+    // FIXME See the above comment in the default constructor.
+  , mSameOriginDataURL(true)
+  , mSkipServiceWorker(false)
+  , mSynchronous(false)
+  , mUnsafeRequest(false)
+  , mUseURLCredentials(false)
+{
+  MOZ_ASSERT(!aURL.IsEmpty());
+  AddURL(aURL, aFragment);
+}
+InternalRequest::InternalRequest(const InternalRequest& aOther)
+  : mMethod(aOther.mMethod)
+  , mURLList(aOther.mURLList)
+  , mHeaders(new InternalHeaders(*aOther.mHeaders))
+  , mContentPolicyType(aOther.mContentPolicyType)
+  , mReferrer(aOther.mReferrer)
+  , mReferrerPolicy(aOther.mReferrerPolicy)
+  , mEnvironmentReferrerPolicy(aOther.mEnvironmentReferrerPolicy)
+  , mMode(aOther.mMode)
+  , mCredentialsMode(aOther.mCredentialsMode)
+  , mResponseTainting(aOther.mResponseTainting)
+  , mCacheMode(aOther.mCacheMode)
+  , mRedirectMode(aOther.mRedirectMode)
+  , mIntegrity(aOther.mIntegrity)
+  , mFragment(aOther.mFragment)
+  , mAuthenticationFlag(aOther.mAuthenticationFlag)
+  , mForceOriginHeader(aOther.mForceOriginHeader)
+  , mPreserveContentCodings(aOther.mPreserveContentCodings)
+  , mSameOriginDataURL(aOther.mSameOriginDataURL)
+  , mSkipServiceWorker(aOther.mSkipServiceWorker)
+  , mSynchronous(aOther.mSynchronous)
+  , mUnsafeRequest(aOther.mUnsafeRequest)
+  , mUseURLCredentials(aOther.mUseURLCredentials)
+  , mCreatedByFetchEvent(aOther.mCreatedByFetchEvent)
+  , mContentPolicyTypeOverridden(aOther.mContentPolicyTypeOverridden)
+{
+  // NOTE: does not copy body stream... use the fallible Clone() for that
+}
+
+InternalRequest::InternalRequest(const IPCInternalRequest& aIPCRequest)
+  : mMethod(aIPCRequest.method())
+  , mURLList(aIPCRequest.urls())
+  , mHeaders(new InternalHeaders(aIPCRequest.headers(),
+                                 aIPCRequest.headersGuard()))
+  , mContentPolicyType(aIPCRequest.contentPolicyType())
+  , mReferrer(aIPCRequest.referrer())
+  , mReferrerPolicy(aIPCRequest.referrerPolicy())
+  , mMode(aIPCRequest.mode())
+  , mCredentialsMode(aIPCRequest.credentials())
+  , mCacheMode(aIPCRequest.requestCache())
+  , mRedirectMode(aIPCRequest.requestRedirect())
+{
+  MOZ_ASSERT(!mURLList.IsEmpty());
+}
+
+InternalRequest::~InternalRequest()
+{
+}
+
+void
+InternalRequest::ToIPC(IPCInternalRequest* aIPCRequest)
+{
+  MOZ_ASSERT(aIPCRequest);
+  MOZ_ASSERT(!mURLList.IsEmpty());
+  aIPCRequest->urls() = mURLList;
+  aIPCRequest->method() = mMethod;
+
+  mHeaders->ToIPC(aIPCRequest->headers(), aIPCRequest->headersGuard());
+
+  aIPCRequest->referrer() = mReferrer;
+  aIPCRequest->referrerPolicy() = mReferrerPolicy;
+  aIPCRequest->mode() = mMode;
+  aIPCRequest->credentials() = mCredentialsMode;
+  aIPCRequest->contentPolicyType() = mContentPolicyType;
+  aIPCRequest->requestCache() = mCacheMode;
+  aIPCRequest->requestRedirect() = mRedirectMode;
+}
+
+void
+InternalRequest::SetContentPolicyType(nsContentPolicyType aContentPolicyType)
+{
+  mContentPolicyType = aContentPolicyType;
+}
+
+void
+InternalRequest::OverrideContentPolicyType(nsContentPolicyType aContentPolicyType)
+{
+  SetContentPolicyType(aContentPolicyType);
+  mContentPolicyTypeOverridden = true;
+}
+
+/* static */
+RequestContext
+InternalRequest::MapContentPolicyTypeToRequestContext(nsContentPolicyType aContentPolicyType)
+{
+  RequestContext context = RequestContext::Internal;
+  switch (aContentPolicyType) {
+  case nsIContentPolicy::TYPE_OTHER:
+    context = RequestContext::Internal;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_SCRIPT:
+  case nsIContentPolicy::TYPE_INTERNAL_SCRIPT_PRELOAD:
+  case nsIContentPolicy::TYPE_INTERNAL_SERVICE_WORKER:
+    context = RequestContext::Script;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_WORKER:
+    context = RequestContext::Worker;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_SHARED_WORKER:
+    context = RequestContext::Sharedworker;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_IMAGE:
+  case nsIContentPolicy::TYPE_INTERNAL_IMAGE_PRELOAD:
+  case nsIContentPolicy::TYPE_INTERNAL_IMAGE_FAVICON:
+    context = RequestContext::Image;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_STYLESHEET:
+  case nsIContentPolicy::TYPE_INTERNAL_STYLESHEET_PRELOAD:
+    context = RequestContext::Style;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_OBJECT:
+    context = RequestContext::Object;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_EMBED:
+    context = RequestContext::Embed;
+    break;
+  case nsIContentPolicy::TYPE_DOCUMENT:
+    context = RequestContext::Internal;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_IFRAME:
+    context = RequestContext::Iframe;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_FRAME:
+    context = RequestContext::Frame;
+    break;
+  case nsIContentPolicy::TYPE_REFRESH:
+    context = RequestContext::Internal;
+    break;
+  case nsIContentPolicy::TYPE_XBL:
+    context = RequestContext::Internal;
+    break;
+  case nsIContentPolicy::TYPE_PING:
+    context = RequestContext::Ping;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_XMLHTTPREQUEST:
+    context = RequestContext::Xmlhttprequest;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_EVENTSOURCE:
+    context = RequestContext::Eventsource;
+    break;
+  case nsIContentPolicy::TYPE_OBJECT_SUBREQUEST:
+    context = RequestContext::Plugin;
+    break;
+  case nsIContentPolicy::TYPE_DTD:
+    context = RequestContext::Internal;
+    break;
+  case nsIContentPolicy::TYPE_FONT:
+    context = RequestContext::Font;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_AUDIO:
+    context = RequestContext::Audio;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_VIDEO:
+    context = RequestContext::Video;
+    break;
+  case nsIContentPolicy::TYPE_INTERNAL_TRACK:
+    context = RequestContext::Track;
+    break;
+  case nsIContentPolicy::TYPE_WEBSOCKET:
+    context = RequestContext::Internal;
+    break;
+  case nsIContentPolicy::TYPE_CSP_REPORT:
+    context = RequestContext::Cspreport;
+    break;
+  case nsIContentPolicy::TYPE_XSLT:
+    context = RequestContext::Xslt;
+    break;
+  case nsIContentPolicy::TYPE_BEACON:
+    context = RequestContext::Beacon;
+    break;
+  case nsIContentPolicy::TYPE_FETCH:
+    context = RequestContext::Fetch;
+    break;
+  case nsIContentPolicy::TYPE_IMAGESET:
+    context = RequestContext::Imageset;
+    break;
+  case nsIContentPolicy::TYPE_WEB_MANIFEST:
+    context = RequestContext::Manifest;
+    break;
+  default:
+    MOZ_ASSERT(false, "Unhandled nsContentPolicyType value");
+    break;
+  }
+  return context;
+}
+
+// static
+bool
+InternalRequest::IsNavigationContentPolicy(nsContentPolicyType aContentPolicyType)
+{
+  // https://fetch.spec.whatwg.org/#navigation-request-context
+  //
+  // A navigation request context is one of "form", "frame", "hyperlink",
+  // "iframe", "internal" (as long as context frame type is not "none"),
+  // "location", "metarefresh", and "prerender".
+  //
+  // Note, all of these request types are effectively initiated by nsDocShell.
+  //
+  // The TYPE_REFRESH is used in some code paths for metarefresh, but will not
+  // be seen during the actual load.  Instead the new load gets a normal
+  // nsDocShell policy type.  We include it here in case this utility method
+  // is called before the load starts.
+  return aContentPolicyType == nsIContentPolicy::TYPE_DOCUMENT ||
+         aContentPolicyType == nsIContentPolicy::TYPE_SUBDOCUMENT ||
+         aContentPolicyType == nsIContentPolicy::TYPE_INTERNAL_FRAME ||
+         aContentPolicyType == nsIContentPolicy::TYPE_INTERNAL_IFRAME ||
+         aContentPolicyType == nsIContentPolicy::TYPE_REFRESH;
+}
+
+// static
+bool
+InternalRequest::IsWorkerContentPolicy(nsContentPolicyType aContentPolicyType)
+{
+  // https://fetch.spec.whatwg.org/#worker-request-context
+  //
+  // A worker request context is one of "serviceworker", "sharedworker", and
+  // "worker".
+  //
+  // Note, service workers are not included here because currently there is
+  // no way to generate a Request with a "serviceworker" RequestContext.
+  // ServiceWorker scripts cannot be intercepted.
+  return aContentPolicyType == nsIContentPolicy::TYPE_INTERNAL_WORKER ||
+         aContentPolicyType == nsIContentPolicy::TYPE_INTERNAL_SHARED_WORKER;
+}
+
+bool
+InternalRequest::IsNavigationRequest() const
+{
+  return IsNavigationContentPolicy(mContentPolicyType);
+}
+
+bool
+InternalRequest::IsWorkerRequest() const
+{
+  return IsWorkerContentPolicy(mContentPolicyType);
+}
+
+bool
+InternalRequest::IsClientRequest() const
+{
+  return IsNavigationRequest() || IsWorkerRequest();
+}
+
+// static
+RequestMode
+InternalRequest::MapChannelToRequestMode(nsIChannel* aChannel)
+{
+  MOZ_ASSERT(aChannel);
+
+  nsCOMPtr<nsILoadInfo> loadInfo;
+  MOZ_ALWAYS_SUCCEEDS(aChannel->GetLoadInfo(getter_AddRefs(loadInfo)));
+
+  nsContentPolicyType contentPolicy = loadInfo->InternalContentPolicyType();
+  if (IsNavigationContentPolicy(contentPolicy)) {
+    return RequestMode::Navigate;
+  }
+
+  // TODO: remove the worker override once securityMode is fully implemented (bug 1189945)
+  if (IsWorkerContentPolicy(contentPolicy)) {
+    return RequestMode::Same_origin;
+  }
+
+  uint32_t securityMode = loadInfo->GetSecurityMode();
+
+  switch(securityMode) {
+    case nsILoadInfo::SEC_REQUIRE_SAME_ORIGIN_DATA_INHERITS:
+    case nsILoadInfo::SEC_REQUIRE_SAME_ORIGIN_DATA_IS_BLOCKED:
+      return RequestMode::Same_origin;
+    case nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_INHERITS:
+    case nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL:
+      return RequestMode::No_cors;
+    case nsILoadInfo::SEC_REQUIRE_CORS_DATA_INHERITS:
+      // TODO: Check additional flag force-preflight after bug 1199693 (bug 1189945)
+      return RequestMode::Cors;
+    default:
+      // TODO: assert never reached after CorsMode flag removed (bug 1189945)
+      MOZ_ASSERT(securityMode == nsILoadInfo::SEC_NORMAL);
+      break;
+  }
+
+  // TODO: remove following code once securityMode is fully implemented (bug 1189945)
+
+  nsCOMPtr<nsIHttpChannelInternal> httpChannel = do_QueryInterface(aChannel);
+
+  uint32_t corsMode;
+  MOZ_ALWAYS_SUCCEEDS(httpChannel->GetCorsMode(&corsMode));
+  MOZ_ASSERT(corsMode != nsIHttpChannelInternal::CORS_MODE_NAVIGATE);
+
+  // This cast is valid due to static asserts in ServiceWorkerManager.cpp.
+  return static_cast<RequestMode>(corsMode);
+}
+
+// static
+RequestCredentials
+InternalRequest::MapChannelToRequestCredentials(nsIChannel* aChannel)
+{
+  MOZ_ASSERT(aChannel);
+
+  nsCOMPtr<nsILoadInfo> loadInfo;
+  MOZ_ALWAYS_SUCCEEDS(aChannel->GetLoadInfo(getter_AddRefs(loadInfo)));
+
+
+  // TODO: Remove following code after stylesheet and image support cookie policy
+  if (loadInfo->GetSecurityMode() == nsILoadInfo::SEC_NORMAL) {
+    uint32_t loadFlags;
+    aChannel->GetLoadFlags(&loadFlags);
+
+    if (loadFlags & nsIRequest::LOAD_ANONYMOUS) {
+      return RequestCredentials::Omit;
+    } else {
+      bool includeCrossOrigin;
+      nsCOMPtr<nsIHttpChannelInternal> internalChannel = do_QueryInterface(aChannel);
+
+      internalChannel->GetCorsIncludeCredentials(&includeCrossOrigin);
+      if (includeCrossOrigin) {
+        return RequestCredentials::Include;
+      }
+    }
+    return RequestCredentials::Same_origin;
+  }
+
+  uint32_t cookiePolicy = loadInfo->GetCookiePolicy();
+
+  if (cookiePolicy == nsILoadInfo::SEC_COOKIES_INCLUDE) {
+    return RequestCredentials::Include;
+  } else if (cookiePolicy == nsILoadInfo::SEC_COOKIES_OMIT) {
+    return RequestCredentials::Omit;
+  } else if (cookiePolicy == nsILoadInfo::SEC_COOKIES_SAME_ORIGIN) {
+    return RequestCredentials::Same_origin;
+  }
+
+  MOZ_ASSERT_UNREACHABLE("Unexpected cookie policy!");
+  return RequestCredentials::Same_origin;
+}
+
+void
+InternalRequest::MaybeSkipCacheIfPerformingRevalidation()
+{
+  if (mCacheMode == RequestCache::Default &&
+      mHeaders->HasRevalidationHeaders()) {
+    mCacheMode = RequestCache::No_store;
+  }
+}
+
+void
+InternalRequest::SetPrincipalInfo(UniquePtr<mozilla::ipc::PrincipalInfo> aPrincipalInfo)
+{
+  mPrincipalInfo = Move(aPrincipalInfo);
+}
+
+} // namespace dom
+} // namespace mozilla