Add m-esr52 at 52.6.0

1 files changed, 203 insertions, 0 deletions

diff --git a/netwerk/base/nsIOService.h b/netwerk/base/nsIOService.h
new file mode 100644
index 000000000..7ac23b791
--- /dev/null
+++ b/netwerk/base/nsIOService.h
@@ -0,0 +1,203 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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/. */
+
+#ifndef nsIOService_h__
+#define nsIOService_h__
+
+#include "nsStringFwd.h"
+#include "nsIIOService2.h"
+#include "nsTArray.h"
+#include "nsCOMPtr.h"
+#include "nsWeakPtr.h"
+#include "nsIObserver.h"
+#include "nsWeakReference.h"
+#include "nsINetUtil.h"
+#include "nsIChannelEventSink.h"
+#include "nsCategoryCache.h"
+#include "nsISpeculativeConnect.h"
+#include "nsDataHashtable.h"
+#include "mozilla/Atomics.h"
+#include "mozilla/Attributes.h"
+#include "prtime.h"
+#include "nsICaptivePortalService.h"
+
+#define NS_N(x) (sizeof(x)/sizeof(*x))
+
+// We don't want to expose this observer topic.
+// Intended internal use only for remoting offline/inline events.
+// See Bug 552829
+#define NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC "ipc:network:set-offline"
+#define NS_IPC_IOSERVICE_SET_CONNECTIVITY_TOPIC "ipc:network:set-connectivity"
+
+static const char gScheme[][sizeof("moz-safe-about")] =
+    {"chrome", "file", "http", "https", "jar", "data", "about", "moz-safe-about", "resource"};
+
+class nsINetworkLinkService;
+class nsIPrefBranch;
+class nsIProtocolProxyService2;
+class nsIProxyInfo;
+class nsPIDNSService;
+class nsPISocketTransportService;
+
+namespace mozilla {
+namespace net {
+class NeckoChild;
+class nsAsyncRedirectVerifyHelper;
+
+class nsIOService final : public nsIIOService2
+                        , public nsIObserver
+                        , public nsINetUtil
+                        , public nsISpeculativeConnect
+                        , public nsSupportsWeakReference
+                        , public nsIIOServiceInternal
+{
+public:
+    NS_DECL_THREADSAFE_ISUPPORTS
+    NS_DECL_NSIIOSERVICE
+    NS_DECL_NSIIOSERVICE2
+    NS_DECL_NSIOBSERVER
+    NS_DECL_NSINETUTIL
+    NS_DECL_NSISPECULATIVECONNECT
+    NS_DECL_NSIIOSERVICEINTERNAL
+
+    // Gets the singleton instance of the IO Service, creating it as needed
+    // Returns nullptr on out of memory or failure to initialize.
+    // Returns an addrefed pointer.
+    static nsIOService* GetInstance();
+
+    nsresult Init();
+    nsresult NewURI(const char* aSpec, nsIURI* aBaseURI,
+                                nsIURI* *result,
+                                nsIProtocolHandler* *hdlrResult);
+
+    // Called by channels before a redirect happens. This notifies the global
+    // redirect observers.
+    nsresult AsyncOnChannelRedirect(nsIChannel* oldChan, nsIChannel* newChan,
+                                    uint32_t flags,
+                                    nsAsyncRedirectVerifyHelper *helper);
+
+    bool IsOffline() { return mOffline; }
+    PRIntervalTime LastOfflineStateChange() { return mLastOfflineStateChange; }
+    PRIntervalTime LastConnectivityChange() { return mLastConnectivityChange; }
+    PRIntervalTime LastNetworkLinkChange() { return mLastNetworkLinkChange; }
+    bool IsNetTearingDown() { return mShutdown || mOfflineForProfileChange ||
+                                     mHttpHandlerAlreadyShutingDown; }
+    PRIntervalTime NetTearingDownStarted() { return mNetTearingDownStarted; }
+
+    // nsHttpHandler is going to call this function to inform nsIOService that network
+    // is in process of tearing down. Moving nsHttpConnectionMgr::Shutdown to nsIOService
+    // caused problems (bug 1242755) so we doing it in this way.
+    // As soon as nsIOService gets notification that it is shutdown it is going to
+    // reset mHttpHandlerAlreadyShutingDown.
+    void SetHttpHandlerAlreadyShutingDown();
+
+    bool IsLinkUp();
+
+    // Used to trigger a recheck of the captive portal status
+    nsresult RecheckCaptivePortal();
+private:
+    // These shouldn't be called directly:
+    // - construct using GetInstance
+    // - destroy using Release
+    nsIOService();
+    ~nsIOService();
+    nsresult SetConnectivityInternal(bool aConnectivity);
+
+    nsresult OnNetworkLinkEvent(const char *data);
+
+    nsresult GetCachedProtocolHandler(const char *scheme,
+                                                  nsIProtocolHandler* *hdlrResult,
+                                                  uint32_t start=0,
+                                                  uint32_t end=0);
+    nsresult CacheProtocolHandler(const char *scheme,
+                                              nsIProtocolHandler* hdlr);
+
+    nsresult InitializeCaptivePortalService();
+    nsresult RecheckCaptivePortalIfLocalRedirect(nsIChannel* newChan);
+
+    // Prefs wrangling
+    void PrefsChanged(nsIPrefBranch *prefs, const char *pref = nullptr);
+    void GetPrefBranch(nsIPrefBranch **);
+    void ParsePortList(nsIPrefBranch *prefBranch, const char *pref, bool remove);
+
+    nsresult InitializeSocketTransportService();
+    nsresult InitializeNetworkLinkService();
+
+    // consolidated helper function
+    void LookupProxyInfo(nsIURI *aURI, nsIURI *aProxyURI, uint32_t aProxyFlags,
+                         nsCString *aScheme, nsIProxyInfo **outPI);
+
+    nsresult NewChannelFromURIWithProxyFlagsInternal(nsIURI* aURI,
+                                                     nsIURI* aProxyURI,
+                                                     uint32_t aProxyFlags,
+                                                     nsILoadInfo* aLoadInfo,
+                                                     nsIChannel** result);
+
+    nsresult SpeculativeConnectInternal(nsIURI *aURI,
+                                        nsIPrincipal *aPrincipal,
+                                        nsIInterfaceRequestor *aCallbacks,
+                                        bool aAnonymous);
+
+private:
+    bool                                 mOffline;
+    mozilla::Atomic<bool, mozilla::Relaxed>  mOfflineForProfileChange;
+    bool                                 mManageLinkStatus;
+    bool                                 mConnectivity;
+    // If true, the connectivity state will be mirrored by IOService.offline
+    // meaning if !mConnectivity, GetOffline() will return true
+    bool                                 mOfflineMirrorsConnectivity;
+
+    // Used to handle SetOffline() reentrancy.  See the comment in
+    // SetOffline() for more details.
+    bool                                 mSettingOffline;
+    bool                                 mSetOfflineValue;
+
+    mozilla::Atomic<bool, mozilla::Relaxed> mShutdown;
+    mozilla::Atomic<bool, mozilla::Relaxed> mHttpHandlerAlreadyShutingDown;
+
+    nsCOMPtr<nsPISocketTransportService> mSocketTransportService;
+    nsCOMPtr<nsPIDNSService>             mDNSService;
+    nsCOMPtr<nsIProtocolProxyService2>   mProxyService;
+    nsCOMPtr<nsICaptivePortalService>    mCaptivePortalService;
+    nsCOMPtr<nsINetworkLinkService>      mNetworkLinkService;
+    bool                                 mNetworkLinkServiceInitialized;
+
+    // Cached protocol handlers, only accessed on the main thread
+    nsWeakPtr                            mWeakHandler[NS_N(gScheme)];
+
+    // cached categories
+    nsCategoryCache<nsIChannelEventSink> mChannelEventSinks;
+
+    nsTArray<int32_t>                    mRestrictedPortList;
+
+    bool                                 mNetworkNotifyChanged;
+
+    static bool                          sTelemetryEnabled;
+
+    // These timestamps are needed for collecting telemetry on PR_Connect,
+    // PR_ConnectContinue and PR_Close blocking time.  If we spend very long
+    // time in any of these functions we want to know if and what network
+    // change has happened shortly before.
+    mozilla::Atomic<PRIntervalTime> mLastOfflineStateChange;
+    mozilla::Atomic<PRIntervalTime> mLastConnectivityChange;
+    mozilla::Atomic<PRIntervalTime> mLastNetworkLinkChange;
+
+    // Time a network tearing down started.
+    mozilla::Atomic<PRIntervalTime> mNetTearingDownStarted;
+public:
+    // Used for all default buffer sizes that necko allocates.
+    static uint32_t   gDefaultSegmentSize;
+    static uint32_t   gDefaultSegmentCount;
+};
+
+/**
+ * Reference to the IO service singleton. May be null.
+ */
+extern nsIOService* gIOService;
+
+} // namespace net
+} // namespace mozilla
+
+#endif // nsIOService_h__