1 files changed, 129 insertions, 0 deletions
diff --git a/netwerk/protocol/http/Http2Push.h b/netwerk/protocol/http/Http2Push.h
new file mode 100644
index 0000000000..fd39eb2c7c
--- /dev/null
+++ b/netwerk/protocol/http/Http2Push.h
@@ -0,0 +1,129 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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_Http2Push_Internal_h
+#define mozilla_net_Http2Push_Internal_h
+
+// HTTP/2 - RFC 7540
+// https://www.rfc-editor.org/rfc/rfc7540.txt
+
+#include "Http2Session.h"
+#include "Http2Stream.h"
+
+#include "mozilla/Attributes.h"
+#include "mozilla/TimeStamp.h"
+#include "mozilla/UniquePtr.h"
+#include "nsHttpRequestHead.h"
+#include "nsILoadGroup.h"
+#include "nsIRequestContext.h"
+#include "nsString.h"
+#include "PSpdyPush.h"
+
+namespace mozilla {
+namespace net {
+
+class Http2PushTransactionBuffer;
+
+class Http2PushedStream final : public Http2Stream
+{
+public:
+  Http2PushedStream(Http2PushTransactionBuffer *aTransaction,
+                    Http2Session *aSession,
+                    Http2Stream *aAssociatedStream,
+                    uint32_t aID);
+  virtual ~Http2PushedStream() {}
+
+  bool GetPushComplete();
+
+  // The consumer stream is the synthetic pull stream hooked up to this push
+  virtual Http2Stream *GetConsumerStream() override { return mConsumerStream; };
+
+  void SetConsumerStream(Http2Stream *aStream);
+  bool GetHashKey(nsCString &key);
+
+  // override of Http2Stream
+  nsresult ReadSegments(nsAHttpSegmentReader *,  uint32_t, uint32_t *) override;
+  nsresult WriteSegments(nsAHttpSegmentWriter *, uint32_t, uint32_t *) override;
+  void AdjustInitialWindow() override;
+
+  nsIRequestContext *RequestContext() override { return mRequestContext; };
+  void ConnectPushedStream(Http2Stream *consumer);
+
+  bool TryOnPush();
+  static bool TestOnPush(Http2Stream *consumer);
+
+  virtual bool DeferCleanup(nsresult status) override;
+  void SetDeferCleanupOnSuccess(bool val) { mDeferCleanupOnSuccess = val; }
+
+  bool IsOrphaned(TimeStamp now);
+  void OnPushFailed() { mDeferCleanupOnPush = false; mOnPushFailed = true; }
+
+  nsresult GetBufferedData(char *buf, uint32_t count, uint32_t *countWritten);
+
+  // overload of Http2Stream
+  virtual bool HasSink() override { return !!mConsumerStream; }
+
+  nsCString &GetRequestString() { return mRequestString; }
+
+private:
+
+  Http2Stream *mConsumerStream; // paired request stream that consumes from
+                                // real http/2 one.. null until a match is made.
+
+  nsCOMPtr<nsIRequestContext> mRequestContext;
+
+  nsAHttpTransaction *mAssociatedTransaction;
+
+  Http2PushTransactionBuffer *mBufferedPush;
+  mozilla::TimeStamp mLastRead;
+
+  nsCString mHashKey;
+  nsresult mStatus;
+  bool mPushCompleted; // server push FIN received
+  bool mDeferCleanupOnSuccess;
+
+  // mDeferCleanupOnPush prevents Http2Session::CleanupStream() from
+  // destroying the push stream on an error code during the period between
+  // when we need to do OnPush() on another thread and the time it takes
+  // for that event to create a synthetic pull stream attached to this
+  // object. That synthetic pull will become mConsuemerStream.
+  // Ths is essentially a delete protecting reference.
+  bool mDeferCleanupOnPush;
+  bool mOnPushFailed;
+  nsCString mRequestString;
+
+};
+
+class Http2PushTransactionBuffer final : public nsAHttpTransaction
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSAHTTPTRANSACTION
+
+  Http2PushTransactionBuffer();
+
+  nsresult GetBufferedData(char *buf, uint32_t count, uint32_t *countWritten);
+  void SetPushStream(Http2PushedStream *stream) { mPushStream = stream; }
+
+private:
+  virtual ~Http2PushTransactionBuffer();
+
+  const static uint32_t kDefaultBufferSize = 4096;
+
+  nsresult mStatus;
+  nsHttpRequestHead *mRequestHead;
+  Http2PushedStream *mPushStream;
+  bool mIsDone;
+
+  UniquePtr<char[]> mBufferedHTTP1;
+  uint32_t mBufferedHTTP1Size;
+  uint32_t mBufferedHTTP1Used;
+  uint32_t mBufferedHTTP1Consumed;
+};
+
+} // namespace net
+} // namespace mozilla
+
+#endif // mozilla_net_Http2Push_Internal_h