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-rw-r--r--netwerk/protocol/http/Http2Push.h182
1 files changed, 182 insertions, 0 deletions
diff --git a/netwerk/protocol/http/Http2Push.h b/netwerk/protocol/http/Http2Push.h
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+++ b/netwerk/protocol/http/Http2Push.h
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+/* -*- 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 "Http2StreamBase.h"
+
+#include "mozilla/Attributes.h"
+#include "mozilla/TimeStamp.h"
+#include "mozilla/UniquePtr.h"
+#include "nsHttpRequestHead.h"
+#include "nsIRequestContext.h"
+#include "nsString.h"
+#include "PSpdyPush.h"
+
+namespace mozilla {
+namespace net {
+
+class Http2PushTransactionBuffer;
+
+class Http2PushedStream final : public Http2StreamBase {
+ public:
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(Http2PushedStream, override)
+
+ Http2PushedStream(Http2PushTransactionBuffer* aTransaction,
+ Http2Session* aSession, Http2StreamBase* aAssociatedStream,
+ uint32_t aID,
+ uint64_t aCurrentForegroundTabOuterContentWindowId);
+
+ Http2PushedStream* GetHttp2PushedStream() override { return this; }
+ bool GetPushComplete();
+
+ // The consumer stream is the synthetic pull stream hooked up to this push
+ Http2StreamBase* GetConsumerStream() { return mConsumerStream; };
+
+ void SetConsumerStream(Http2StreamBase* consumer);
+ [[nodiscard]] bool GetHashKey(nsCString& key);
+
+ // override of Http2StreamBase
+ [[nodiscard]] nsresult ReadSegments(nsAHttpSegmentReader*, uint32_t,
+ uint32_t*) override;
+ [[nodiscard]] nsresult WriteSegments(nsAHttpSegmentWriter*, uint32_t,
+ uint32_t*) override;
+ void AdjustInitialWindow() override;
+
+ nsAHttpTransaction* Transaction() override { return mTransaction; }
+ nsIRequestContext* RequestContext() override { return mRequestContext; };
+ void ConnectPushedStream(Http2StreamBase* stream);
+
+ [[nodiscard]] bool TryOnPush();
+ [[nodiscard]] static bool TestOnPush(Http2StreamBase* stream);
+
+ virtual bool DeferCleanup(nsresult status) override;
+ void SetDeferCleanupOnSuccess(bool val) { mDeferCleanupOnSuccess = val; }
+
+ bool IsOrphaned(TimeStamp now);
+ void OnPushFailed() {
+ mDeferCleanupOnPush = false;
+ mOnPushFailed = true;
+ }
+
+ [[nodiscard]] nsresult GetBufferedData(char* buf, uint32_t count,
+ uint32_t* countWritten);
+
+ // overload of Http2StreamBase
+ virtual bool HasSink() override { return !!mConsumerStream; }
+ void SetPushComplete() { mPushCompleted = true; }
+ virtual void CurrentBrowserIdChanged(uint64_t) override;
+
+ nsCString& GetRequestString() { return mRequestString; }
+ nsCString& GetResourceUrl() { return mResourceUrl; }
+
+ nsresult ConvertPushHeaders(Http2Decompressor* decompressor,
+ nsACString& aHeadersIn, nsACString& aHeadersOut);
+
+ void CloseStream(nsresult reason) override;
+
+ protected:
+ nsresult CallToReadData(uint32_t count, uint32_t* countRead) override;
+ nsresult CallToWriteData(uint32_t count, uint32_t* countWritten) override;
+ nsresult GenerateHeaders(nsCString& aCompressedData,
+ uint8_t& firstFrameFlags) override;
+
+ private:
+ virtual ~Http2PushedStream() = default;
+ // paired request stream that consumes from real http/2 one.. null until a
+ // match is made.
+ Http2StreamBase* mConsumerStream{nullptr};
+
+ nsCOMPtr<nsIRequestContext> mRequestContext;
+
+ nsAHttpTransaction* mAssociatedTransaction;
+
+ Http2PushTransactionBuffer* mBufferedPush;
+ mozilla::TimeStamp mLastRead;
+
+ nsCString mHashKey;
+ nsresult mStatus{NS_OK};
+ bool mPushCompleted{false}; // server push FIN received
+ bool mDeferCleanupOnSuccess{true};
+
+ // 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{false};
+ bool mOnPushFailed{false};
+ nsCString mRequestString;
+ nsCString mResourceUrl;
+
+ uint32_t mDefaultPriorityDependency;
+
+ // The underlying HTTP transaction. This pointer is used as the key
+ // in the Http2Session mStreamTransactionHash so it is important to
+ // keep a reference to it as long as this stream is a member of that hash.
+ // (i.e. don't change it or release it after it is set in the ctor).
+ RefPtr<nsAHttpTransaction> const mTransaction;
+};
+
+class Http2PushTransactionBuffer final : public nsAHttpTransaction {
+ public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSAHTTPTRANSACTION
+
+ Http2PushTransactionBuffer();
+
+ [[nodiscard]] nsresult GetBufferedData(char* buf, uint32_t count,
+ uint32_t* countWritten);
+ void SetPushStream(Http2PushedStream* stream) { mPushStream = stream; }
+
+ private:
+ virtual ~Http2PushTransactionBuffer();
+ uint64_t Available();
+
+ const static uint32_t kDefaultBufferSize = 4096;
+
+ nsresult mStatus{NS_OK};
+ nsHttpRequestHead* mRequestHead{nullptr};
+ Http2PushedStream* mPushStream{nullptr};
+ bool mIsDone{false};
+
+ UniquePtr<char[]> mBufferedHTTP1;
+ uint32_t mBufferedHTTP1Size{kDefaultBufferSize};
+ uint32_t mBufferedHTTP1Used{0};
+ uint32_t mBufferedHTTP1Consumed{0};
+};
+
+class Http2PushedStreamWrapper : public nsISupports {
+ public:
+ NS_DECL_THREADSAFE_ISUPPORTS
+ bool DispatchRelease();
+
+ explicit Http2PushedStreamWrapper(Http2PushedStream* aPushStream);
+
+ nsCString& GetRequestString() { return mRequestString; }
+ nsCString& GetResourceUrl() { return mResourceUrl; }
+ Http2PushedStream* GetStream();
+ void OnPushFailed();
+ uint32_t StreamID() { return mStreamID; }
+
+ private:
+ virtual ~Http2PushedStreamWrapper();
+
+ nsCString mRequestString;
+ nsCString mResourceUrl;
+ uint32_t mStreamID;
+ WeakPtr<Http2StreamBase> mStream;
+};
+
+} // namespace net
+} // namespace mozilla
+
+#endif // mozilla_net_Http2Push_Internal_h