Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 377 insertions, 0 deletions

diff --git a/netwerk/protocol/websocket/WebSocketChannel.h b/netwerk/protocol/websocket/WebSocketChannel.h
new file mode 100644
index 0000000000..0c643a8cd9
--- /dev/null
+++ b/netwerk/protocol/websocket/WebSocketChannel.h
@@ -0,0 +1,377 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set sw=2 ts=8 et 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/. */
+
+#ifndef mozilla_net_WebSocketChannel_h
+#define mozilla_net_WebSocketChannel_h
+
+#include "nsISupports.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsIStreamListener.h"
+#include "nsIAsyncInputStream.h"
+#include "nsIAsyncOutputStream.h"
+#include "nsITimer.h"
+#include "nsIDNSListener.h"
+#include "nsINamed.h"
+#include "nsIObserver.h"
+#include "nsIProtocolProxyCallback.h"
+#include "nsIChannelEventSink.h"
+#include "nsIHttpChannelInternal.h"
+#include "mozilla/net/WebSocketConnectionListener.h"
+#include "mozilla/Mutex.h"
+#include "BaseWebSocketChannel.h"
+
+#include "nsCOMPtr.h"
+#include "nsString.h"
+#include "nsDeque.h"
+#include "mozilla/Atomics.h"
+
+class nsIAsyncVerifyRedirectCallback;
+class nsIDashboardEventNotifier;
+class nsIEventTarget;
+class nsIHttpChannel;
+class nsIRandomGenerator;
+class nsISocketTransport;
+class nsIURI;
+
+namespace mozilla {
+namespace net {
+
+class OutboundMessage;
+class OutboundEnqueuer;
+class nsWSAdmissionManager;
+class PMCECompression;
+class CallOnMessageAvailable;
+class CallOnStop;
+class CallOnServerClose;
+class CallAcknowledge;
+class WebSocketEventService;
+class WebSocketConnectionBase;
+
+[[nodiscard]] extern nsresult CalculateWebSocketHashedSecret(
+    const nsACString& aKey, nsACString& aHash);
+extern void ProcessServerWebSocketExtensions(const nsACString& aExtensions,
+                                             nsACString& aNegotiatedExtensions);
+
+// Used to enforce "1 connecting websocket per host" rule, and reconnect delays
+enum wsConnectingState {
+  NOT_CONNECTING = 0,     // Not yet (or no longer) trying to open connection
+  CONNECTING_QUEUED,      // Waiting for other ws to same host to finish opening
+  CONNECTING_DELAYED,     // Delayed by "reconnect after failure" algorithm
+  CONNECTING_IN_PROGRESS  // Started connection: waiting for result
+};
+
+class WebSocketChannel : public BaseWebSocketChannel,
+                         public nsIHttpUpgradeListener,
+                         public nsIStreamListener,
+                         public nsIInputStreamCallback,
+                         public nsIOutputStreamCallback,
+                         public nsITimerCallback,
+                         public nsIDNSListener,
+                         public nsIObserver,
+                         public nsIProtocolProxyCallback,
+                         public nsIInterfaceRequestor,
+                         public nsIChannelEventSink,
+                         public nsINamed,
+                         public WebSocketConnectionListener {
+  friend class WebSocketFrame;
+
+ public:
+  NS_DECL_THREADSAFE_ISUPPORTS
+  NS_DECL_NSIHTTPUPGRADELISTENER
+  NS_DECL_NSIREQUESTOBSERVER
+  NS_DECL_NSISTREAMLISTENER
+  NS_DECL_NSIINPUTSTREAMCALLBACK
+  NS_DECL_NSIOUTPUTSTREAMCALLBACK
+  NS_DECL_NSITIMERCALLBACK
+  NS_DECL_NSIDNSLISTENER
+  NS_DECL_NSIPROTOCOLPROXYCALLBACK
+  NS_DECL_NSIINTERFACEREQUESTOR
+  NS_DECL_NSICHANNELEVENTSINK
+  NS_DECL_NSIOBSERVER
+  NS_DECL_NSINAMED
+
+  // nsIWebSocketChannel methods BaseWebSocketChannel didn't implement for us
+  //
+  NS_IMETHOD AsyncOpen(nsIURI* aURI, const nsACString& aOrigin,
+                       JS::Handle<JS::Value> aOriginAttributes,
+                       uint64_t aWindowID, nsIWebSocketListener* aListener,
+                       nsISupports* aContext, JSContext* aCx) override;
+  NS_IMETHOD AsyncOpenNative(nsIURI* aURI, const nsACString& aOrigin,
+                             const OriginAttributes& aOriginAttributes,
+                             uint64_t aWindowID,
+                             nsIWebSocketListener* aListener,
+                             nsISupports* aContext) override;
+  NS_IMETHOD Close(uint16_t aCode, const nsACString& aReason) override;
+  NS_IMETHOD SendMsg(const nsACString& aMsg) override;
+  NS_IMETHOD SendBinaryMsg(const nsACString& aMsg) override;
+  NS_IMETHOD SendBinaryStream(nsIInputStream* aStream,
+                              uint32_t length) override;
+  NS_IMETHOD GetSecurityInfo(nsITransportSecurityInfo** aSecurityInfo) override;
+
+  WebSocketChannel();
+  static void Shutdown();
+
+  // Off main thread URI access.
+  void GetEffectiveURL(nsAString& aEffectiveURL) const override;
+  bool IsEncrypted() const override;
+
+  nsresult OnTransportAvailableInternal();
+  void OnError(nsresult aStatus) override;
+  void OnTCPClosed() override;
+  nsresult OnDataReceived(uint8_t* aData, uint32_t aCount) override;
+
+  const static uint32_t kControlFrameMask = 0x8;
+
+  // First byte of the header
+  const static uint8_t kFinalFragBit = 0x80;
+  const static uint8_t kRsvBitsMask = 0x70;
+  const static uint8_t kRsv1Bit = 0x40;
+  const static uint8_t kRsv2Bit = 0x20;
+  const static uint8_t kRsv3Bit = 0x10;
+  const static uint8_t kOpcodeBitsMask = 0x0F;
+
+  // Second byte of the header
+  const static uint8_t kMaskBit = 0x80;
+  const static uint8_t kPayloadLengthBitsMask = 0x7F;
+
+ protected:
+  ~WebSocketChannel() override;
+
+ private:
+  friend class OutboundEnqueuer;
+  friend class nsWSAdmissionManager;
+  friend class FailDelayManager;
+  friend class CallOnMessageAvailable;
+  friend class CallOnStop;
+  friend class CallOnServerClose;
+  friend class CallAcknowledge;
+
+  // Common send code for binary + text msgs
+  [[nodiscard]] nsresult SendMsgCommon(const nsACString& aMsg, bool isBinary,
+                                       uint32_t length,
+                                       nsIInputStream* aStream = nullptr);
+
+  void EnqueueOutgoingMessage(nsDeque<OutboundMessage>& aQueue,
+                              OutboundMessage* aMsg);
+  void DoEnqueueOutgoingMessage();
+
+  void PrimeNewOutgoingMessage();
+  void DeleteCurrentOutGoingMessage();
+  void GeneratePong(uint8_t* payload, uint32_t len);
+  void GeneratePing();
+
+  [[nodiscard]] nsresult OnNetworkChanged();
+  [[nodiscard]] nsresult StartPinging();
+
+  void BeginOpen(bool aCalledFromAdmissionManager);
+  void BeginOpenInternal();
+  [[nodiscard]] nsresult HandleExtensions();
+  [[nodiscard]] nsresult SetupRequest();
+  [[nodiscard]] nsresult ApplyForAdmission();
+  [[nodiscard]] nsresult DoAdmissionDNS();
+  [[nodiscard]] nsresult CallStartWebsocketData();
+  [[nodiscard]] nsresult StartWebsocketData();
+  uint16_t ResultToCloseCode(nsresult resultCode);
+  void ReportConnectionTelemetry(nsresult aStatusCode);
+
+  void StopSession(nsresult reason);
+  void DoStopSession(nsresult reason);
+  void AbortSession(nsresult reason);
+  void ReleaseSession();
+  void CleanupConnection();
+  void IncrementSessionCount();
+  void DecrementSessionCount();
+
+  void EnsureHdrOut(uint32_t size);
+
+  static void ApplyMask(uint32_t mask, uint8_t* data, uint64_t len);
+
+  bool IsPersistentFramePtr();
+  [[nodiscard]] nsresult ProcessInput(uint8_t* buffer, uint32_t count);
+  [[nodiscard]] bool UpdateReadBuffer(uint8_t* buffer, uint32_t count,
+                                      uint32_t accumulatedFragments,
+                                      uint32_t* available);
+
+  inline void ResetPingTimer() {
+    mPingOutstanding = 0;
+    if (mPingTimer) {
+      if (!mPingInterval) {
+        // The timer was created by forced ping and regular pinging is disabled,
+        // so cancel and null out mPingTimer.
+        mPingTimer->Cancel();
+        mPingTimer = nullptr;
+      } else {
+        mPingTimer->SetDelay(mPingInterval);
+      }
+    }
+  }
+
+  void NotifyOnStart();
+
+  nsCOMPtr<nsIEventTarget> mIOThread;
+  // Set in AsyncOpenNative and AsyncOnChannelRedirect, modified in
+  // DoStopSession on IO thread (.forget()).   Probably ok...
+  nsCOMPtr<nsIHttpChannelInternal> mChannel;
+  nsCOMPtr<nsIHttpChannel> mHttpChannel;
+
+  nsCOMPtr<nsICancelable> mCancelable MOZ_GUARDED_BY(mMutex);
+  // Mainthread only
+  nsCOMPtr<nsIAsyncVerifyRedirectCallback> mRedirectCallback;
+  // Set on Mainthread during AsyncOpen, used on IO thread and Mainthread
+  nsCOMPtr<nsIRandomGenerator> mRandomGenerator;
+
+  nsCString mHashedSecret;  // MainThread only
+
+  // Used as key for connection managment: Initially set to hostname from URI,
+  // then to IP address (unless we're leaving DNS resolution to a proxy server)
+  // MainThread only
+  nsCString mAddress;
+  int32_t mPort;  // WS server port
+  // Secondary key for the connection queue. Used by nsWSAdmissionManager.
+  nsCString mOriginSuffix;  // MainThread only
+
+  // Used for off main thread access to the URI string.
+  // Set on MainThread in AsyncOpenNative, used on TargetThread and IO thread
+  nsCString mHost;
+  nsString mEffectiveURL;
+
+  // Set on MainThread before multithread use, used on IO thread, cleared on
+  // IOThread
+  nsCOMPtr<nsISocketTransport> mTransport;
+  nsCOMPtr<nsIAsyncInputStream> mSocketIn;
+  nsCOMPtr<nsIAsyncOutputStream> mSocketOut;
+  RefPtr<WebSocketConnectionBase> mConnection;
+
+  // Only used on IO Thread (accessed when known-to-be-null in DoStopSession
+  // on MainThread before mDataStarted)
+  nsCOMPtr<nsITimer> mCloseTimer;
+  // set in AsyncOpenInternal on MainThread, used on IO thread.
+  // No multithread use before it's set, no changes after that.
+  uint32_t mCloseTimeout; /* milliseconds */
+
+  nsCOMPtr<nsITimer> mOpenTimer; /* Mainthread only */
+  uint32_t mOpenTimeout;         /* milliseconds, MainThread only */
+  wsConnectingState mConnecting; /* 0 if not connecting, MainThread only */
+  // Set on MainThread, deleted on MainThread, used on MainThread or
+  // IO Thread (in DoStopSession). Mutex required to access off-main-thread.
+  nsCOMPtr<nsITimer> mReconnectDelayTimer MOZ_GUARDED_BY(mMutex);
+
+  // Only touched on IOThread (DoStopSession reads it on MainThread if
+  // we haven't connected yet (mDataStarted==false), and it's always null
+  // until mDataStarted=true)
+  nsCOMPtr<nsITimer> mPingTimer;
+
+  // Created in DoStopSession on IO thread (mDataStarted=true), accessed
+  // only from IO Thread
+  nsCOMPtr<nsITimer> mLingeringCloseTimer;
+  const static int32_t kLingeringCloseTimeout = 1000;
+  const static int32_t kLingeringCloseThreshold = 50;
+
+  RefPtr<WebSocketEventService> mService;  // effectively const
+
+  int32_t
+      mMaxConcurrentConnections;  // only used in AsyncOpenNative on MainThread
+
+  // Set on MainThread in AsyncOpenNative; then used on IO thread
+  uint64_t mInnerWindowID;
+
+  // following members are accessed only on the main thread
+  uint32_t mGotUpgradeOK : 1;
+  uint32_t mRecvdHttpUpgradeTransport : 1;
+  uint32_t mAutoFollowRedirects : 1;
+  uint32_t mAllowPMCE : 1;
+  uint32_t : 0;  // ensure these aren't mixed with the next set
+
+  // following members are accessed only on the IO thread
+  uint32_t mPingOutstanding : 1;
+  uint32_t mReleaseOnTransmit : 1;
+  uint32_t : 0;
+
+  Atomic<bool> mDataStarted;
+  // All changes to mRequestedClose happen under mutex, but since it's atomic,
+  // it can be read anywhere without a lock
+  Atomic<bool> mRequestedClose;
+  // mServer/ClientClosed are only modified on IOThread
+  Atomic<bool> mClientClosed;
+  Atomic<bool> mServerClosed;
+  // All changes to mStopped happen under mutex, but since it's atomic, it
+  // can be read anywhere without a lock
+  Atomic<bool> mStopped;
+  Atomic<bool> mCalledOnStop;
+  Atomic<bool> mTCPClosed;
+  Atomic<bool> mOpenedHttpChannel;
+  Atomic<bool> mIncrementedSessionCount;
+  Atomic<bool> mDecrementedSessionCount;
+
+  int32_t mMaxMessageSize;  // set on MainThread in AsyncOpenNative, read on IO
+                            // thread
+  // Set on IOThread, or on MainThread before mDataStarted.  Used on IO Thread
+  // (after mDataStarted)
+  nsresult mStopOnClose;
+  uint16_t mServerCloseCode;     // only used on IO thread
+  nsCString mServerCloseReason;  // only used on IO thread
+  uint16_t mScriptCloseCode MOZ_GUARDED_BY(mMutex);
+  nsCString mScriptCloseReason MOZ_GUARDED_BY(mMutex);
+
+  // These are for the read buffers
+  const static uint32_t kIncomingBufferInitialSize = 16 * 1024;
+  // We're ok with keeping a buffer this size or smaller around for the life of
+  // the websocket.  If a particular message needs bigger than this we'll
+  // increase the buffer temporarily, then drop back down to this size.
+  const static uint32_t kIncomingBufferStableSize = 128 * 1024;
+
+  // Set at creation, used/modified only on IO thread
+  uint8_t* mFramePtr;
+  uint8_t* mBuffer;
+  uint8_t mFragmentOpcode;
+  uint32_t mFragmentAccumulator;
+  uint32_t mBuffered;
+  uint32_t mBufferSize;
+
+  // These are for the send buffers
+  const static int32_t kCopyBreak = 1000;
+
+  // Only used on IO thread
+  OutboundMessage* mCurrentOut;
+  uint32_t mCurrentOutSent;
+  nsDeque<OutboundMessage> mOutgoingMessages;
+  nsDeque<OutboundMessage> mOutgoingPingMessages;
+  nsDeque<OutboundMessage> mOutgoingPongMessages;
+  uint32_t mHdrOutToSend;
+  uint8_t* mHdrOut;
+  uint8_t mOutHeader[kCopyBreak + 16]{0};
+
+  // Set on MainThread in OnStartRequest (before mDataStarted), or in
+  // HandleExtensions() or OnTransportAvailableInternal(),used on IO Thread
+  // (after mDataStarted), cleared in DoStopSession on IOThread or on
+  // MainThread (if mDataStarted == false).
+  Mutex mCompressorMutex;
+  UniquePtr<PMCECompression> mPMCECompressor MOZ_GUARDED_BY(mCompressorMutex);
+
+  // Used by EnsureHdrOut, which isn't called anywhere
+  uint32_t mDynamicOutputSize;
+  uint8_t* mDynamicOutput;
+  // Set on creation and AsyncOpen, read on both threads
+  Atomic<bool> mPrivateBrowsing;
+
+  nsCOMPtr<nsIDashboardEventNotifier>
+      mConnectionLogService;  // effectively const
+
+  mozilla::Mutex mMutex;
+};
+
+class WebSocketSSLChannel : public WebSocketChannel {
+ public:
+  WebSocketSSLChannel() { BaseWebSocketChannel::mEncrypted = true; }
+
+ protected:
+  virtual ~WebSocketSSLChannel() = default;
+};
+
+}  // namespace net
+}  // namespace mozilla
+
+#endif  // mozilla_net_WebSocketChannel_h