Adding upstream version 115.7.0esr.upstream/115.7.0esr

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

1 files changed, 557 insertions, 0 deletions

diff --git a/netwerk/protocol/http/Http2Push.cpp b/netwerk/protocol/http/Http2Push.cpp
new file mode 100644
index 0000000000..35cee9cd2a
--- /dev/null
+++ b/netwerk/protocol/http/Http2Push.cpp
@@ -0,0 +1,557 @@
+/* -*- 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/. */
+
+// HttpLog.h should generally be included first
+#include "HttpLog.h"
+
+// Log on level :5, instead of default :4.
+#undef LOG
+#define LOG(args) LOG5(args)
+#undef LOG_ENABLED
+#define LOG_ENABLED() LOG5_ENABLED()
+
+#include <algorithm>
+
+#include "Http2Push.h"
+#include "nsHttp.h"
+#include "nsHttpHandler.h"
+#include "nsHttpTransaction.h"
+#include "nsIHttpPushListener.h"
+#include "nsISocketTransport.h"
+#include "nsSocketTransportService2.h"
+#include "nsString.h"
+
+namespace mozilla {
+namespace net {
+
+// Because WeakPtr isn't thread-safe we must ensure that the object is destroyed
+// on the socket thread, so any Release() called on a different thread is
+// dispatched to the socket thread.
+bool Http2PushedStreamWrapper::DispatchRelease() {
+  if (OnSocketThread()) {
+    return false;
+  }
+
+  gSocketTransportService->Dispatch(
+      NewNonOwningRunnableMethod("net::Http2PushedStreamWrapper::Release", this,
+                                 &Http2PushedStreamWrapper::Release),
+      NS_DISPATCH_NORMAL);
+
+  return true;
+}
+
+NS_IMPL_ADDREF(Http2PushedStreamWrapper)
+NS_IMETHODIMP_(MozExternalRefCountType)
+Http2PushedStreamWrapper::Release() {
+  nsrefcnt count = mRefCnt - 1;
+  if (DispatchRelease()) {
+    // Redispatched to the socket thread.
+    return count;
+  }
+
+  MOZ_ASSERT(0 != mRefCnt, "dup release");
+  count = --mRefCnt;
+  NS_LOG_RELEASE(this, count, "Http2PushedStreamWrapper");
+
+  if (0 == count) {
+    mRefCnt = 1;
+    delete (this);
+    return 0;
+  }
+
+  return count;
+}
+
+NS_INTERFACE_MAP_BEGIN(Http2PushedStreamWrapper)
+NS_INTERFACE_MAP_END
+
+Http2PushedStreamWrapper::Http2PushedStreamWrapper(
+    Http2PushedStream* aPushStream) {
+  MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+  mStream = aPushStream;
+  mRequestString = aPushStream->GetRequestString();
+  mResourceUrl = aPushStream->GetResourceUrl();
+  mStreamID = aPushStream->StreamID();
+}
+
+Http2PushedStreamWrapper::~Http2PushedStreamWrapper() {
+  MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+}
+
+Http2PushedStream* Http2PushedStreamWrapper::GetStream() {
+  MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+  if (mStream) {
+    Http2StreamBase* stream = mStream;
+    return static_cast<Http2PushedStream*>(stream);
+  }
+  return nullptr;
+}
+
+void Http2PushedStreamWrapper::OnPushFailed() {
+  if (OnSocketThread()) {
+    if (mStream) {
+      Http2StreamBase* stream = mStream;
+      static_cast<Http2PushedStream*>(stream)->OnPushFailed();
+    }
+  } else {
+    gSocketTransportService->Dispatch(
+        NewRunnableMethod("net::Http2PushedStreamWrapper::OnPushFailed", this,
+                          &Http2PushedStreamWrapper::OnPushFailed),
+        NS_DISPATCH_NORMAL);
+  }
+}
+
+//////////////////////////////////////////
+// Http2PushedStream
+//////////////////////////////////////////
+
+Http2PushedStream::Http2PushedStream(
+    Http2PushTransactionBuffer* aTransaction, Http2Session* aSession,
+    Http2StreamBase* aAssociatedStream, uint32_t aID,
+    uint64_t aCurrentForegroundTabOuterContentWindowId)
+    : Http2StreamBase((aTransaction->QueryHttpTransaction())
+                          ? aTransaction->QueryHttpTransaction()->BrowserId()
+                          : 0,
+                      aSession, 0, aCurrentForegroundTabOuterContentWindowId),
+      mAssociatedTransaction(aAssociatedStream->Transaction()),
+      mBufferedPush(aTransaction),
+      mTransaction(aTransaction) {
+  LOG3(("Http2PushedStream ctor this=%p 0x%X\n", this, aID));
+  mStreamID = aID;
+  MOZ_ASSERT(!(aID & 1));  // must be even to be a pushed stream
+  mBufferedPush->SetPushStream(this);
+  mRequestContext = aAssociatedStream->RequestContext();
+  mLastRead = TimeStamp::Now();
+  mPriorityDependency = aAssociatedStream->PriorityDependency();
+  if (mPriorityDependency == Http2Session::kUrgentStartGroupID ||
+      mPriorityDependency == Http2Session::kLeaderGroupID) {
+    mPriorityDependency = Http2Session::kFollowerGroupID;
+  }
+  // Cache this for later use in case of tab switch.
+  mDefaultPriorityDependency = mPriorityDependency;
+  SetPriorityDependency(aAssociatedStream->Priority() + 1, mPriorityDependency);
+  // Assume we are on the same tab as our associated stream, for priority
+  // purposes. It's possible this could change when we get paired with a sink,
+  // but it's unlikely and doesn't much matter anyway.
+  mTransactionBrowserId = aAssociatedStream->TransactionBrowserId();
+}
+
+bool Http2PushedStream::GetPushComplete() { return mPushCompleted; }
+
+nsresult Http2PushedStream::WriteSegments(nsAHttpSegmentWriter* writer,
+                                          uint32_t count,
+                                          uint32_t* countWritten) {
+  nsresult rv = Http2StreamBase::WriteSegments(writer, count, countWritten);
+  if (NS_SUCCEEDED(rv) && *countWritten) {
+    mLastRead = TimeStamp::Now();
+  }
+
+  if (rv == NS_BASE_STREAM_CLOSED) {
+    mPushCompleted = true;
+    rv = NS_OK;  // this is what a normal HTTP transaction would do
+  }
+  if (rv != NS_BASE_STREAM_WOULD_BLOCK && NS_FAILED(rv)) mStatus = rv;
+  return rv;
+}
+
+bool Http2PushedStream::DeferCleanup(nsresult status) {
+  LOG3(("Http2PushedStream::DeferCleanup Query %p %" PRIx32 "\n", this,
+        static_cast<uint32_t>(status)));
+
+  if (NS_SUCCEEDED(status) && mDeferCleanupOnSuccess) {
+    LOG3(("Http2PushedStream::DeferCleanup %p %" PRIx32 " defer on success\n",
+          this, static_cast<uint32_t>(status)));
+    return true;
+  }
+  if (mDeferCleanupOnPush) {
+    LOG3(("Http2PushedStream::DeferCleanup %p %" PRIx32 " defer onPush ref\n",
+          this, static_cast<uint32_t>(status)));
+    return true;
+  }
+  if (mConsumerStream) {
+    LOG3(("Http2PushedStream::DeferCleanup %p %" PRIx32
+          " defer active consumer\n",
+          this, static_cast<uint32_t>(status)));
+    return true;
+  }
+  LOG3(("Http2PushedStream::DeferCleanup Query %p %" PRIx32 " not deferred\n",
+        this, static_cast<uint32_t>(status)));
+  return false;
+}
+
+// return true if channel implements nsIHttpPushListener
+bool Http2PushedStream::TryOnPush() {
+  nsHttpTransaction* trans = mAssociatedTransaction->QueryHttpTransaction();
+  if (!trans) {
+    return false;
+  }
+
+  if (!(trans->Caps() & NS_HTTP_ONPUSH_LISTENER)) {
+    return false;
+  }
+
+  mDeferCleanupOnPush = true;
+  mResourceUrl = Origin() + Path();
+  RefPtr<Http2PushedStreamWrapper> stream = new Http2PushedStreamWrapper(this);
+  trans->OnPush(stream);
+  return true;
+}
+
+// side effect free static method to determine if Http2StreamBase implements
+// nsIHttpPushListener
+bool Http2PushedStream::TestOnPush(Http2StreamBase* stream) {
+  if (!stream) {
+    return false;
+  }
+  nsAHttpTransaction* abstractTransaction = stream->Transaction();
+  if (!abstractTransaction) {
+    return false;
+  }
+  nsHttpTransaction* trans = abstractTransaction->QueryHttpTransaction();
+  if (!trans) {
+    return false;
+  }
+  return trans->Caps() & NS_HTTP_ONPUSH_LISTENER;
+}
+
+nsresult Http2PushedStream::ReadSegments(nsAHttpSegmentReader* reader, uint32_t,
+                                         uint32_t* count) {
+  nsresult rv = NS_OK;
+  *count = 0;
+
+  mozilla::OriginAttributes originAttributes;
+  switch (mUpstreamState) {
+    case GENERATING_HEADERS: {
+      // The request headers for this has been processed, so we need to verify
+      // that :authority, :scheme, and :path MUST be present. :method MUST NOT
+      // be present
+      mSocketTransport->GetOriginAttributes(&originAttributes);
+      RefPtr<Http2Session> session = Session();
+      CreatePushHashKey(mHeaderScheme, mHeaderHost, originAttributes,
+                        session->Serial(), mHeaderPath, mOrigin, mHashKey);
+
+      LOG3(("Http2PushStream 0x%X hash key %s\n", mStreamID, mHashKey.get()));
+
+      // the write side of a pushed transaction just involves manipulating a
+      // little state
+      SetSentFin(true);
+      Http2StreamBase::mRequestHeadersDone = 1;
+      Http2StreamBase::mOpenGenerated = 1;
+      Http2StreamBase::ChangeState(UPSTREAM_COMPLETE);
+    } break;
+
+    case UPSTREAM_COMPLETE:
+      // Let's just clear the stream's transmit buffer by pushing it into
+      // the session. This is probably a window adjustment.
+      LOG3(("Http2Push::ReadSegments 0x%X \n", mStreamID));
+      mSegmentReader = reader;
+      rv = TransmitFrame(nullptr, nullptr, true);
+      mSegmentReader = nullptr;
+      break;
+
+    case GENERATING_BODY:
+    case SENDING_BODY:
+    case SENDING_FIN_STREAM:
+    default:
+      break;
+  }
+
+  return rv;
+}
+
+void Http2PushedStream::AdjustInitialWindow() {
+  LOG3(("Http2PushStream %p 0x%X AdjustInitialWindow", this, mStreamID));
+  if (mConsumerStream) {
+    LOG3(
+        ("Http2PushStream::AdjustInitialWindow %p 0x%X "
+         "calling super consumer %p 0x%X\n",
+         this, mStreamID, mConsumerStream, mConsumerStream->StreamID()));
+    Http2StreamBase::AdjustInitialWindow();
+    // Http2PushedStream::ReadSegments is needed to call TransmitFrame()
+    // and actually get this information into the session bytestream
+    RefPtr<Http2Session> session = Session();
+    session->TransactionHasDataToWrite(this);
+  }
+  // Otherwise, when we get hooked up, the initial window will get bumped
+  // anyway, so we're good to go.
+}
+
+void Http2PushedStream::SetConsumerStream(Http2StreamBase* consumer) {
+  LOG3(("Http2PushedStream::SetConsumerStream this=%p consumer=%p", this,
+        consumer));
+
+  mConsumerStream = consumer;
+  mDeferCleanupOnPush = false;
+}
+
+bool Http2PushedStream::GetHashKey(nsCString& key) {
+  if (mHashKey.IsEmpty()) return false;
+
+  key = mHashKey;
+  return true;
+}
+
+void Http2PushedStream::ConnectPushedStream(Http2StreamBase* stream) {
+  RefPtr<Http2Session> session = Session();
+  session->ConnectPushedStream(stream);
+}
+
+bool Http2PushedStream::IsOrphaned(TimeStamp now) {
+  MOZ_ASSERT(!now.IsNull());
+
+  // if session is not transmitting, and is also not connected to a consumer
+  // stream, and its been like that for too long then it is oprhaned
+
+  if (mConsumerStream || mDeferCleanupOnPush) {
+    return false;
+  }
+
+  if (mOnPushFailed) {
+    return true;
+  }
+
+  bool rv = ((now - mLastRead).ToSeconds() > 30.0);
+  if (rv) {
+    LOG3(("Http2PushedStream:IsOrphaned 0x%X IsOrphaned %3.2f\n", mStreamID,
+          (now - mLastRead).ToSeconds()));
+  }
+  return rv;
+}
+
+nsresult Http2PushedStream::GetBufferedData(char* buf, uint32_t count,
+                                            uint32_t* countWritten) {
+  if (NS_FAILED(mStatus)) return mStatus;
+
+  nsresult rv = mBufferedPush->GetBufferedData(buf, count, countWritten);
+  if (NS_FAILED(rv)) return rv;
+
+  if (!*countWritten) {
+    rv = GetPushComplete() ? NS_BASE_STREAM_CLOSED : NS_BASE_STREAM_WOULD_BLOCK;
+  }
+
+  return rv;
+}
+
+void Http2PushedStream::CurrentBrowserIdChanged(uint64_t id) {
+  if (mConsumerStream) {
+    // Pass through to our sink, who will handle things appropriately.
+    mConsumerStream->CurrentBrowserIdChanged(id);
+    return;
+  }
+
+  MOZ_ASSERT(gHttpHandler->ActiveTabPriority());
+
+  mCurrentBrowserId = id;
+  RefPtr<Http2Session> session = Session();
+  if (!session->UseH2Deps()) {
+    return;
+  }
+
+  uint32_t oldDependency = mPriorityDependency;
+  if (mTransactionBrowserId != mCurrentBrowserId) {
+    mPriorityDependency = Http2Session::kBackgroundGroupID;
+    nsHttp::NotifyActiveTabLoadOptimization();
+  } else {
+    mPriorityDependency = mDefaultPriorityDependency;
+  }
+
+  if (mPriorityDependency != oldDependency) {
+    session->SendPriorityFrame(mStreamID, mPriorityDependency, mPriorityWeight);
+  }
+}
+
+// ConvertPushHeaders is used to convert the pushed request headers
+// into HTTP/1 format and report some telemetry
+nsresult Http2PushedStream::ConvertPushHeaders(Http2Decompressor* decompressor,
+                                               nsACString& aHeadersIn,
+                                               nsACString& aHeadersOut) {
+  nsresult rv = decompressor->DecodeHeaderBlock(
+      reinterpret_cast<const uint8_t*>(aHeadersIn.BeginReading()),
+      aHeadersIn.Length(), aHeadersOut, true);
+  if (NS_FAILED(rv)) {
+    LOG3(("Http2PushedStream::ConvertPushHeaders %p Error\n", this));
+    return rv;
+  }
+
+  nsCString method;
+  decompressor->GetHost(mHeaderHost);
+  decompressor->GetScheme(mHeaderScheme);
+  decompressor->GetPath(mHeaderPath);
+
+  if (mHeaderHost.IsEmpty() || mHeaderScheme.IsEmpty() ||
+      mHeaderPath.IsEmpty()) {
+    LOG3(
+        ("Http2PushedStream::ConvertPushHeaders %p Error - missing required "
+         "host=%s scheme=%s path=%s\n",
+         this, mHeaderHost.get(), mHeaderScheme.get(), mHeaderPath.get()));
+    return NS_ERROR_ILLEGAL_VALUE;
+  }
+
+  decompressor->GetMethod(method);
+  if (!method.EqualsLiteral("GET")) {
+    LOG3(
+        ("Http2PushedStream::ConvertPushHeaders %p Error - method not "
+         "supported: "
+         "%s\n",
+         this, method.get()));
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+
+  aHeadersIn.Truncate();
+  LOG(("id 0x%X decoded push headers %s %s %s are:\n%s", mStreamID,
+       mHeaderScheme.get(), mHeaderHost.get(), mHeaderPath.get(),
+       aHeadersOut.BeginReading()));
+  return NS_OK;
+}
+
+nsresult Http2PushedStream::CallToReadData(uint32_t count,
+                                           uint32_t* countRead) {
+  return mTransaction->ReadSegments(this, count, countRead);
+}
+
+nsresult Http2PushedStream::CallToWriteData(uint32_t count,
+                                            uint32_t* countWritten) {
+  return mTransaction->WriteSegments(this, count, countWritten);
+}
+
+nsresult Http2PushedStream::GenerateHeaders(nsCString& aCompressedData,
+                                            uint8_t& firstFrameFlags) {
+  MOZ_ASSERT(false);
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+void Http2PushedStream::CloseStream(nsresult reason) {
+  mTransaction->Close(reason);
+  mSession = nullptr;
+}
+
+//////////////////////////////////////////
+// Http2PushTransactionBuffer
+// This is the nsAHttpTransction owned by the stream when the pushed
+// stream has not yet been matched with a pull request
+//////////////////////////////////////////
+
+NS_IMPL_ISUPPORTS0(Http2PushTransactionBuffer)
+
+Http2PushTransactionBuffer::Http2PushTransactionBuffer() {
+  mBufferedHTTP1 = MakeUnique<char[]>(mBufferedHTTP1Size);
+}
+
+Http2PushTransactionBuffer::~Http2PushTransactionBuffer() {
+  delete mRequestHead;
+}
+
+void Http2PushTransactionBuffer::SetConnection(nsAHttpConnection* conn) {}
+
+nsAHttpConnection* Http2PushTransactionBuffer::Connection() { return nullptr; }
+
+void Http2PushTransactionBuffer::GetSecurityCallbacks(
+    nsIInterfaceRequestor** outCB) {
+  *outCB = nullptr;
+}
+
+void Http2PushTransactionBuffer::OnTransportStatus(nsITransport* transport,
+                                                   nsresult status,
+                                                   int64_t progress) {}
+
+nsHttpConnectionInfo* Http2PushTransactionBuffer::ConnectionInfo() {
+  if (!mPushStream) {
+    return nullptr;
+  }
+  if (!mPushStream->Transaction()) {
+    return nullptr;
+  }
+  MOZ_ASSERT(mPushStream->Transaction() != this);
+  return mPushStream->Transaction()->ConnectionInfo();
+}
+
+bool Http2PushTransactionBuffer::IsDone() { return mIsDone; }
+
+nsresult Http2PushTransactionBuffer::Status() { return mStatus; }
+
+uint32_t Http2PushTransactionBuffer::Caps() { return 0; }
+
+uint64_t Http2PushTransactionBuffer::Available() {
+  return mBufferedHTTP1Used - mBufferedHTTP1Consumed;
+}
+
+nsresult Http2PushTransactionBuffer::ReadSegments(nsAHttpSegmentReader* reader,
+                                                  uint32_t count,
+                                                  uint32_t* countRead) {
+  *countRead = 0;
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+nsresult Http2PushTransactionBuffer::WriteSegments(nsAHttpSegmentWriter* writer,
+                                                   uint32_t count,
+                                                   uint32_t* countWritten) {
+  if ((mBufferedHTTP1Size - mBufferedHTTP1Used) < 20480) {
+    EnsureBuffer(mBufferedHTTP1, mBufferedHTTP1Size + kDefaultBufferSize,
+                 mBufferedHTTP1Used, mBufferedHTTP1Size);
+  }
+
+  count = std::min(count, mBufferedHTTP1Size - mBufferedHTTP1Used);
+  nsresult rv = writer->OnWriteSegment(&mBufferedHTTP1[mBufferedHTTP1Used],
+                                       count, countWritten);
+  if (NS_SUCCEEDED(rv)) {
+    mBufferedHTTP1Used += *countWritten;
+  } else if (rv == NS_BASE_STREAM_CLOSED) {
+    mIsDone = true;
+  }
+
+  if (Available() || mIsDone) {
+    Http2StreamBase* consumer = mPushStream->GetConsumerStream();
+
+    if (consumer) {
+      LOG3(
+          ("Http2PushTransactionBuffer::WriteSegments notifying connection "
+           "consumer data available 0x%X [%" PRIu64 "] done=%d\n",
+           mPushStream->StreamID(), Available(), mIsDone));
+      mPushStream->ConnectPushedStream(consumer);
+    }
+  }
+
+  return rv;
+}
+
+uint32_t Http2PushTransactionBuffer::Http1xTransactionCount() { return 0; }
+
+nsHttpRequestHead* Http2PushTransactionBuffer::RequestHead() {
+  if (!mRequestHead) mRequestHead = new nsHttpRequestHead();
+  return mRequestHead;
+}
+
+nsresult Http2PushTransactionBuffer::TakeSubTransactions(
+    nsTArray<RefPtr<nsAHttpTransaction> >& outTransactions) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+void Http2PushTransactionBuffer::SetProxyConnectFailed() {}
+
+void Http2PushTransactionBuffer::Close(nsresult reason) {
+  mStatus = reason;
+  mIsDone = true;
+}
+
+nsresult Http2PushTransactionBuffer::GetBufferedData(char* buf, uint32_t count,
+                                                     uint32_t* countWritten) {
+  *countWritten = std::min(count, static_cast<uint32_t>(Available()));
+  if (*countWritten) {
+    memcpy(buf, &mBufferedHTTP1[mBufferedHTTP1Consumed], *countWritten);
+    mBufferedHTTP1Consumed += *countWritten;
+  }
+
+  // If all the data has been consumed then reset the buffer
+  if (mBufferedHTTP1Consumed == mBufferedHTTP1Used) {
+    mBufferedHTTP1Consumed = 0;
+    mBufferedHTTP1Used = 0;
+  }
+
+  return NS_OK;
+}
+
+}  // namespace net
+}  // namespace mozilla