mirror of
https://github.com/mozilla/gecko-dev.git
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2484 lines
82 KiB
C++
2484 lines
82 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim:set ts=4 sw=4 sts=4 et cin: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// HttpLog.h should generally be included first
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#include "HttpLog.h"
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#include "base/basictypes.h"
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#include "nsHttpHandler.h"
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#include "nsHttpTransaction.h"
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#include "nsHttpRequestHead.h"
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#include "nsHttpResponseHead.h"
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#include "nsHttpChunkedDecoder.h"
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#include "nsTransportUtils.h"
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#include "nsNetCID.h"
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#include "nsNetUtil.h"
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#include "nsIChannel.h"
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#include "nsIPipe.h"
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#include "nsCRT.h"
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#include "mozilla/Tokenizer.h"
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#include "TCPFastOpenLayer.h"
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#include "nsISeekableStream.h"
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#include "nsMultiplexInputStream.h"
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#include "nsStringStream.h"
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#include "nsComponentManagerUtils.h" // do_CreateInstance
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#include "nsIHttpActivityObserver.h"
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#include "nsSocketTransportService2.h"
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#include "nsICancelable.h"
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#include "nsIClassOfService.h"
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#include "nsIEventTarget.h"
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#include "nsIHttpChannelInternal.h"
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#include "nsIInputStream.h"
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#include "nsIThrottledInputChannel.h"
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#include "nsITransport.h"
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#include "nsIOService.h"
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#include "nsIRequestContext.h"
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#include "nsIHttpAuthenticator.h"
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#include "NSSErrorsService.h"
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#include "sslerr.h"
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#include <algorithm>
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//-----------------------------------------------------------------------------
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static NS_DEFINE_CID(kMultiplexInputStream, NS_MULTIPLEXINPUTSTREAM_CID);
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// Place a limit on how much non-compliant HTTP can be skipped while
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// looking for a response header
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#define MAX_INVALID_RESPONSE_BODY_SIZE (1024 * 128)
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using namespace mozilla::net;
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namespace mozilla {
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namespace net {
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//-----------------------------------------------------------------------------
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// helpers
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//-----------------------------------------------------------------------------
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static void
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LogHeaders(const char *lineStart)
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{
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nsAutoCString buf;
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char *endOfLine;
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while ((endOfLine = PL_strstr(lineStart, "\r\n"))) {
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buf.Assign(lineStart, endOfLine - lineStart);
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if (PL_strcasestr(buf.get(), "authorization: ") ||
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PL_strcasestr(buf.get(), "proxy-authorization: ")) {
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char *p = PL_strchr(PL_strchr(buf.get(), ' ') + 1, ' ');
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while (p && *++p)
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*p = '*';
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}
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LOG3((" %s\n", buf.get()));
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lineStart = endOfLine + 2;
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}
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}
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//-----------------------------------------------------------------------------
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// nsHttpTransaction <public>
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//-----------------------------------------------------------------------------
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nsHttpTransaction::nsHttpTransaction()
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: mLock("transaction lock")
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, mRequestSize(0)
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, mRequestHead(nullptr)
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, mResponseHead(nullptr)
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, mReader(nullptr)
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, mWriter(nullptr)
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, mContentLength(-1)
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, mContentRead(0)
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, mTransferSize(0)
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, mInvalidResponseBytesRead(0)
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, mPushedStream(nullptr)
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, mInitialRwin(0)
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, mChunkedDecoder(nullptr)
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, mStatus(NS_OK)
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, mPriority(0)
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, mRestartCount(0)
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, mCaps(0)
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, mHttpVersion(HttpVersion::UNKNOWN)
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, mHttpResponseCode(0)
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, mCurrentHttpResponseHeaderSize(0)
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, mThrottlingReadAllowance(THROTTLE_NO_LIMIT)
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, mCapsToClear(0)
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, mResponseIsComplete(false)
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, mReadingStopped(false)
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, mClosed(false)
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, mConnected(false)
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, mActivated(false)
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, mHaveStatusLine(false)
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, mHaveAllHeaders(false)
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, mTransactionDone(false)
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, mDidContentStart(false)
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, mNoContent(false)
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, mSentData(false)
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, mReceivedData(false)
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, mStatusEventPending(false)
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, mHasRequestBody(false)
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, mProxyConnectFailed(false)
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, mHttpResponseMatched(false)
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, mPreserveStream(false)
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, mDispatchedAsBlocking(false)
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, mResponseTimeoutEnabled(true)
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, mForceRestart(false)
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, mReuseOnRestart(false)
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, mContentDecoding(false)
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, mContentDecodingCheck(false)
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, mDeferredSendProgress(false)
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, mWaitingOnPipeOut(false)
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, mReportedStart(false)
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, mReportedResponseHeader(false)
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, mResponseHeadTaken(false)
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, mForTakeResponseTrailers(nullptr)
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, mResponseTrailersTaken(false)
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, mTopLevelOuterContentWindowId(0)
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, mSubmittedRatePacing(false)
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, mPassedRatePacing(false)
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, mSynchronousRatePaceRequest(false)
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, mClassOfService(0)
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, m0RTTInProgress(false)
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, mDoNotTryEarlyData(false)
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, mEarlyDataDisposition(EARLY_NONE)
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, mFastOpenStatus(TFO_NOT_TRIED)
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{
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this->mSelfAddr.inet = {};
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this->mPeerAddr.inet = {};
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LOG(("Creating nsHttpTransaction @%p\n", this));
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#ifdef MOZ_VALGRIND
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memset(&mSelfAddr, 0, sizeof(NetAddr));
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memset(&mPeerAddr, 0, sizeof(NetAddr));
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#endif
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mSelfAddr.raw.family = PR_AF_UNSPEC;
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mPeerAddr.raw.family = PR_AF_UNSPEC;
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}
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void nsHttpTransaction::ResumeReading()
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{
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MOZ_ASSERT(OnSocketThread(), "not on socket thread");
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if (!mReadingStopped) {
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return;
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}
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LOG(("nsHttpTransaction::ResumeReading %p", this));
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mReadingStopped = false;
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// This with either reengage the limit when still throttled in WriteSegments or
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// simply reset to allow unlimeted reading again.
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mThrottlingReadAllowance = THROTTLE_NO_LIMIT;
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if (mConnection) {
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mConnection->TransactionHasDataToRecv(this);
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nsresult rv = mConnection->ResumeRecv();
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if (NS_FAILED(rv)) {
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LOG((" resume failed with rv=%" PRIx32, static_cast<uint32_t>(rv)));
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}
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}
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}
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bool nsHttpTransaction::EligibleForThrottling() const
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{
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return (mClassOfService & (nsIClassOfService::Throttleable |
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nsIClassOfService::DontThrottle |
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nsIClassOfService::Leader |
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nsIClassOfService::Unblocked)) ==
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nsIClassOfService::Throttleable;
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}
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void nsHttpTransaction::SetClassOfService(uint32_t cos)
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{
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bool wasThrottling = EligibleForThrottling();
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mClassOfService = cos;
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bool isThrottling = EligibleForThrottling();
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if (mConnection && wasThrottling != isThrottling) {
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// Do nothing until we are actually activated. For now
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// only remember the throttle flag. Call to UpdateActiveTransaction
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// would add this transaction to the list too early.
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gHttpHandler->ConnMgr()->UpdateActiveTransaction(this);
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if (mReadingStopped && !isThrottling) {
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ResumeReading();
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}
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}
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}
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nsHttpTransaction::~nsHttpTransaction()
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{
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LOG(("Destroying nsHttpTransaction @%p\n", this));
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if (mTransactionObserver) {
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mTransactionObserver->Complete(this, NS_OK);
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}
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if (mPushedStream) {
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mPushedStream->OnPushFailed();
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mPushedStream = nullptr;
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}
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if (mTokenBucketCancel) {
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mTokenBucketCancel->Cancel(NS_ERROR_ABORT);
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mTokenBucketCancel = nullptr;
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}
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// Force the callbacks and connection to be released right now
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mCallbacks = nullptr;
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mConnection = nullptr;
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delete mResponseHead;
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delete mChunkedDecoder;
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ReleaseBlockingTransaction();
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}
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nsresult
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nsHttpTransaction::Init(uint32_t caps,
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nsHttpConnectionInfo *cinfo,
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nsHttpRequestHead *requestHead,
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nsIInputStream *requestBody,
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uint64_t requestContentLength,
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bool requestBodyHasHeaders,
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nsIEventTarget *target,
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nsIInterfaceRequestor *callbacks,
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nsITransportEventSink *eventsink,
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uint64_t topLevelOuterContentWindowId,
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nsIAsyncInputStream **responseBody)
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{
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nsresult rv;
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LOG(("nsHttpTransaction::Init [this=%p caps=%x]\n", this, caps));
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MOZ_ASSERT(cinfo);
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MOZ_ASSERT(requestHead);
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MOZ_ASSERT(target);
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MOZ_ASSERT(NS_IsMainThread());
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mTopLevelOuterContentWindowId = topLevelOuterContentWindowId;
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LOG((" window-id = %" PRIx64, mTopLevelOuterContentWindowId));
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mActivityDistributor = services::GetActivityDistributor();
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if (!mActivityDistributor) {
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return NS_ERROR_NOT_AVAILABLE;
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}
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bool activityDistributorActive;
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rv = mActivityDistributor->GetIsActive(&activityDistributorActive);
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if (NS_SUCCEEDED(rv) && activityDistributorActive) {
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// there are some observers registered at activity distributor, gather
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// nsISupports for the channel that called Init()
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LOG(("nsHttpTransaction::Init() " \
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"mActivityDistributor is active " \
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"this=%p", this));
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} else {
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// there is no observer, so don't use it
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activityDistributorActive = false;
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mActivityDistributor = nullptr;
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}
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mChannel = do_QueryInterface(eventsink);
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nsCOMPtr<nsIHttpChannelInternal> httpChannelInternal =
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do_QueryInterface(eventsink);
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if (httpChannelInternal) {
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rv = httpChannelInternal->GetResponseTimeoutEnabled(
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&mResponseTimeoutEnabled);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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rv = httpChannelInternal->GetInitialRwin(&mInitialRwin);
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MOZ_ASSERT(NS_SUCCEEDED(rv));
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}
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// create transport event sink proxy. it coalesces consecutive
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// events of the same status type.
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rv = net_NewTransportEventSinkProxy(getter_AddRefs(mTransportSink),
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eventsink, target);
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if (NS_FAILED(rv)) return rv;
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mConnInfo = cinfo;
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mCallbacks = callbacks;
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mConsumerTarget = target;
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mCaps = caps;
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if (requestHead->IsHead()) {
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mNoContent = true;
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}
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// Make sure that there is "Content-Length: 0" header in the requestHead
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// in case of POST and PUT methods when there is no requestBody and
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// requestHead doesn't contain "Transfer-Encoding" header.
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//
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// RFC1945 section 7.2.2:
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// HTTP/1.0 requests containing an entity body must include a valid
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// Content-Length header field.
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//
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// RFC2616 section 4.4:
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// For compatibility with HTTP/1.0 applications, HTTP/1.1 requests
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// containing a message-body MUST include a valid Content-Length header
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// field unless the server is known to be HTTP/1.1 compliant.
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if ((requestHead->IsPost() || requestHead->IsPut()) &&
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!requestBody && !requestHead->HasHeader(nsHttp::Transfer_Encoding)) {
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rv = requestHead->SetHeader(nsHttp::Content_Length, NS_LITERAL_CSTRING("0"));
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MOZ_ASSERT(NS_SUCCEEDED(rv));
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}
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// grab a weak reference to the request head
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mRequestHead = requestHead;
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// make sure we eliminate any proxy specific headers from
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// the request if we are using CONNECT
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bool pruneProxyHeaders = cinfo->UsingConnect();
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mReqHeaderBuf.Truncate();
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requestHead->Flatten(mReqHeaderBuf, pruneProxyHeaders);
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if (LOG3_ENABLED()) {
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LOG3(("http request [\n"));
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LogHeaders(mReqHeaderBuf.get());
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LOG3(("]\n"));
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}
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// If the request body does not include headers or if there is no request
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// body, then we must add the header/body separator manually.
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if (!requestBodyHasHeaders || !requestBody)
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mReqHeaderBuf.AppendLiteral("\r\n");
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// report the request header
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if (mActivityDistributor) {
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rv = mActivityDistributor->ObserveActivity(
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mChannel,
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NS_HTTP_ACTIVITY_TYPE_HTTP_TRANSACTION,
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NS_HTTP_ACTIVITY_SUBTYPE_REQUEST_HEADER,
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PR_Now(), 0,
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mReqHeaderBuf);
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if (NS_FAILED(rv)) {
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LOG3(("ObserveActivity failed (%08x)", static_cast<uint32_t>(rv)));
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}
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}
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// Create a string stream for the request header buf (the stream holds
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// a non-owning reference to the request header data, so we MUST keep
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// mReqHeaderBuf around).
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nsCOMPtr<nsIInputStream> headers;
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rv = NS_NewByteInputStream(getter_AddRefs(headers),
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mReqHeaderBuf.get(),
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mReqHeaderBuf.Length());
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if (NS_FAILED(rv)) return rv;
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mHasRequestBody = !!requestBody;
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if (mHasRequestBody && !requestContentLength) {
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mHasRequestBody = false;
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}
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requestContentLength += mReqHeaderBuf.Length();
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if (mHasRequestBody) {
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// wrap the headers and request body in a multiplexed input stream.
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nsCOMPtr<nsIMultiplexInputStream> multi =
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do_CreateInstance(kMultiplexInputStream, &rv);
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if (NS_FAILED(rv)) return rv;
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rv = multi->AppendStream(headers);
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if (NS_FAILED(rv)) return rv;
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rv = multi->AppendStream(requestBody);
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if (NS_FAILED(rv)) return rv;
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// wrap the multiplexed input stream with a buffered input stream, so
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// that we write data in the largest chunks possible. this is actually
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// necessary to workaround some common server bugs (see bug 137155).
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nsCOMPtr<nsIInputStream> stream(do_QueryInterface(multi));
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rv = NS_NewBufferedInputStream(getter_AddRefs(mRequestStream),
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stream.forget(),
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nsIOService::gDefaultSegmentSize);
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if (NS_FAILED(rv)) return rv;
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} else {
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mRequestStream = headers;
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}
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nsCOMPtr<nsIThrottledInputChannel> throttled = do_QueryInterface(mChannel);
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nsIInputChannelThrottleQueue* queue;
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if (throttled) {
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rv = throttled->GetThrottleQueue(&queue);
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// In case of failure, just carry on without throttling.
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if (NS_SUCCEEDED(rv) && queue) {
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nsCOMPtr<nsIAsyncInputStream> wrappedStream;
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rv = queue->WrapStream(mRequestStream, getter_AddRefs(wrappedStream));
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// Failure to throttle isn't sufficient reason to fail
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// initialization
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if (NS_SUCCEEDED(rv)) {
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MOZ_ASSERT(wrappedStream != nullptr);
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LOG(("nsHttpTransaction::Init %p wrapping input stream using throttle queue %p\n",
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this, queue));
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mRequestStream = do_QueryInterface(wrappedStream);
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}
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}
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}
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// make sure request content-length fits within js MAX_SAFE_INTEGER
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mRequestSize = InScriptableRange(requestContentLength) ? static_cast<int64_t>(requestContentLength) : -1;
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// create pipe for response stream
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rv = NS_NewPipe2(getter_AddRefs(mPipeIn),
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getter_AddRefs(mPipeOut),
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true, true,
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nsIOService::gDefaultSegmentSize,
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nsIOService::gDefaultSegmentCount);
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if (NS_FAILED(rv)) return rv;
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#ifdef WIN32 // bug 1153929
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MOZ_DIAGNOSTIC_ASSERT(mPipeOut);
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uint32_t * vtable = (uint32_t *) mPipeOut.get();
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MOZ_DIAGNOSTIC_ASSERT(*vtable != 0);
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#endif // WIN32
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nsCOMPtr<nsIAsyncInputStream> tmp(mPipeIn);
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tmp.forget(responseBody);
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return NS_OK;
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}
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// This method should only be used on the socket thread
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nsAHttpConnection *
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nsHttpTransaction::Connection()
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{
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MOZ_ASSERT(OnSocketThread(), "not on socket thread");
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return mConnection.get();
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}
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already_AddRefed<nsAHttpConnection>
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nsHttpTransaction::GetConnectionReference()
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{
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MutexAutoLock lock(mLock);
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RefPtr<nsAHttpConnection> connection(mConnection);
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return connection.forget();
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}
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nsHttpResponseHead *
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nsHttpTransaction::TakeResponseHead()
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{
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MOZ_ASSERT(!mResponseHeadTaken, "TakeResponseHead called 2x");
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// Lock TakeResponseHead() against main thread
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|
MutexAutoLock lock(*nsHttp::GetLock());
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mResponseHeadTaken = true;
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|
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// Even in OnStartRequest() the headers won't be available if we were
|
|
// canceled
|
|
if (!mHaveAllHeaders) {
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|
NS_WARNING("response headers not available or incomplete");
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|
return nullptr;
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}
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|
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nsHttpResponseHead *head = mResponseHead;
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mResponseHead = nullptr;
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|
return head;
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}
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|
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nsHttpHeaderArray *
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nsHttpTransaction::TakeResponseTrailers()
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|
{
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MOZ_ASSERT(!mResponseTrailersTaken, "TakeResponseTrailers called 2x");
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|
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// Lock TakeResponseTrailers() against main thread
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MutexAutoLock lock(*nsHttp::GetLock());
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|
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mResponseTrailersTaken = true;
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return mForTakeResponseTrailers.forget();
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}
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|
|
|
void
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nsHttpTransaction::SetProxyConnectFailed()
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{
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mProxyConnectFailed = true;
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}
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nsHttpRequestHead *
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nsHttpTransaction::RequestHead()
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{
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return mRequestHead;
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}
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|
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uint32_t
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nsHttpTransaction::Http1xTransactionCount()
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{
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return 1;
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}
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|
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nsresult
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nsHttpTransaction::TakeSubTransactions(
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nsTArray<RefPtr<nsAHttpTransaction> > &outTransactions)
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|
{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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|
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//----------------------------------------------------------------------------
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// nsHttpTransaction::nsAHttpTransaction
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//----------------------------------------------------------------------------
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void
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nsHttpTransaction::SetConnection(nsAHttpConnection *conn)
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{
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{
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MutexAutoLock lock(mLock);
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mConnection = conn;
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}
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}
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void
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nsHttpTransaction::OnActivated()
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{
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MOZ_ASSERT(OnSocketThread());
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if (mActivated) {
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return;
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}
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if (mConnection && mRequestHead && mConnection->Version() >= HttpVersion::v2_0) {
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// So this is fun. On http/2, we want to send TE: Trailers, to be
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// spec-compliant. So we add it to the request head here. The fun part
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// is that adding a header to the request head at this point has no
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// effect on what we send on the wire, as the headers are already
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// flattened (in Init()) by the time we get here. So the *real* adding
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// of the header happens in the h2 compression code. We still have to
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// add the header to the request head here, though, so that devtools can
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// show that we sent the header. FUN!
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Unused << mRequestHead->SetHeader(nsHttp::TE, NS_LITERAL_CSTRING("Trailers"));
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}
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mActivated = true;
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gHttpHandler->ConnMgr()->AddActiveTransaction(this);
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}
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void
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nsHttpTransaction::GetSecurityCallbacks(nsIInterfaceRequestor **cb)
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{
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MutexAutoLock lock(mLock);
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nsCOMPtr<nsIInterfaceRequestor> tmp(mCallbacks);
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tmp.forget(cb);
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}
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void
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nsHttpTransaction::SetSecurityCallbacks(nsIInterfaceRequestor* aCallbacks)
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{
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{
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MutexAutoLock lock(mLock);
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mCallbacks = aCallbacks;
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}
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if (gSocketTransportService) {
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RefPtr<UpdateSecurityCallbacks> event = new UpdateSecurityCallbacks(this, aCallbacks);
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gSocketTransportService->Dispatch(event, nsIEventTarget::DISPATCH_NORMAL);
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}
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}
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void
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nsHttpTransaction::OnTransportStatus(nsITransport* transport,
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nsresult status, int64_t progress)
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{
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LOG(("nsHttpTransaction::OnSocketStatus [this=%p status=%" PRIx32 " progress=%" PRId64 "]\n",
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this, static_cast<uint32_t>(status), progress));
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if (status == NS_NET_STATUS_CONNECTED_TO ||
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status == NS_NET_STATUS_WAITING_FOR) {
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nsISocketTransport *socketTransport =
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mConnection ? mConnection->Transport() : nullptr;
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if (socketTransport) {
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MutexAutoLock lock(mLock);
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socketTransport->GetSelfAddr(&mSelfAddr);
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socketTransport->GetPeerAddr(&mPeerAddr);
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}
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}
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// If the timing is enabled, and we are not using a persistent connection
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// then the requestStart timestamp will be null, so we mark the timestamps
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// for domainLookupStart/End and connectStart/End
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// If we are using a persistent connection they will remain null,
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// and the correct value will be returned in Performance.
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if (TimingEnabled() && GetRequestStart().IsNull()) {
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if (status == NS_NET_STATUS_RESOLVING_HOST) {
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SetDomainLookupStart(TimeStamp::Now(), true);
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} else if (status == NS_NET_STATUS_RESOLVED_HOST) {
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SetDomainLookupEnd(TimeStamp::Now());
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} else if (status == NS_NET_STATUS_CONNECTING_TO) {
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SetConnectStart(TimeStamp::Now());
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} else if (status == NS_NET_STATUS_CONNECTED_TO) {
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TimeStamp tnow = TimeStamp::Now();
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SetConnectEnd(tnow, true);
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{
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MutexAutoLock lock(mLock);
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mTimings.tcpConnectEnd = tnow;
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// After a socket is connected we know for sure whether data
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// has been sent on SYN packet and if not we should update TLS
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// start timing.
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if ((mFastOpenStatus != TFO_DATA_SENT) &&
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!mTimings.secureConnectionStart.IsNull()) {
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mTimings.secureConnectionStart = tnow;
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}
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}
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} else if (status == NS_NET_STATUS_TLS_HANDSHAKE_STARTING) {
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{
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MutexAutoLock lock(mLock);
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mTimings.secureConnectionStart = TimeStamp::Now();
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}
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} else if (status == NS_NET_STATUS_TLS_HANDSHAKE_ENDED) {
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SetConnectEnd(TimeStamp::Now(), false);
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} else if (status == NS_NET_STATUS_SENDING_TO) {
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// Set the timestamp to Now(), only if it null
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SetRequestStart(TimeStamp::Now(), true);
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}
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}
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if (!mTransportSink)
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return;
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MOZ_ASSERT(OnSocketThread(), "not on socket thread");
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// Need to do this before the STATUS_RECEIVING_FROM check below, to make
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// sure that the activity distributor gets told about all status events.
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if (mActivityDistributor) {
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// upon STATUS_WAITING_FOR; report request body sent
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if ((mHasRequestBody) &&
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(status == NS_NET_STATUS_WAITING_FOR)) {
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nsresult rv = mActivityDistributor->ObserveActivity(
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mChannel,
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NS_HTTP_ACTIVITY_TYPE_HTTP_TRANSACTION,
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NS_HTTP_ACTIVITY_SUBTYPE_REQUEST_BODY_SENT,
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PR_Now(), 0, EmptyCString());
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if (NS_FAILED(rv)) {
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LOG3(("ObserveActivity failed (%08x)", static_cast<uint32_t>(rv)));
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}
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}
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// report the status and progress
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nsresult rv = mActivityDistributor->ObserveActivity(
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mChannel,
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NS_HTTP_ACTIVITY_TYPE_SOCKET_TRANSPORT,
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static_cast<uint32_t>(status),
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PR_Now(),
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progress,
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EmptyCString());
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if (NS_FAILED(rv)) {
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LOG3(("ObserveActivity failed (%08x)", static_cast<uint32_t>(rv)));
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}
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}
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// nsHttpChannel synthesizes progress events in OnDataAvailable
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if (status == NS_NET_STATUS_RECEIVING_FROM)
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return;
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int64_t progressMax;
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if (status == NS_NET_STATUS_SENDING_TO) {
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// suppress progress when only writing request headers
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if (!mHasRequestBody) {
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LOG(("nsHttpTransaction::OnTransportStatus %p "
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"SENDING_TO without request body\n", this));
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return;
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}
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if (mReader) {
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// A mRequestStream method is on the stack - wait.
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LOG(("nsHttpTransaction::OnSocketStatus [this=%p] "
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"Skipping Re-Entrant NS_NET_STATUS_SENDING_TO\n", this));
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// its ok to coalesce several of these into one deferred event
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mDeferredSendProgress = true;
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return;
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}
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nsCOMPtr<nsISeekableStream> seekable = do_QueryInterface(mRequestStream);
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if (!seekable) {
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LOG(("nsHttpTransaction::OnTransportStatus %p "
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"SENDING_TO without seekable request stream\n", this));
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progress = 0;
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} else {
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int64_t prog = 0;
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seekable->Tell(&prog);
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progress = prog;
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}
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// when uploading, we include the request headers in the progress
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// notifications.
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progressMax = mRequestSize;
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}
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else {
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progress = 0;
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progressMax = 0;
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}
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mTransportSink->OnTransportStatus(transport, status, progress, progressMax);
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}
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bool
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nsHttpTransaction::IsDone()
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{
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return mTransactionDone;
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}
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nsresult
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nsHttpTransaction::Status()
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{
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return mStatus;
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}
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uint32_t
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nsHttpTransaction::Caps()
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{
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return mCaps & ~mCapsToClear;
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}
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void
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nsHttpTransaction::SetDNSWasRefreshed()
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{
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MOZ_ASSERT(NS_IsMainThread(), "SetDNSWasRefreshed on main thread only!");
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mCapsToClear |= NS_HTTP_REFRESH_DNS;
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}
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nsresult
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nsHttpTransaction::ReadRequestSegment(nsIInputStream *stream,
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void *closure,
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const char *buf,
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uint32_t offset,
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uint32_t count,
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uint32_t *countRead)
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{
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// For the tracking of sent bytes that we used to do for the networkstats
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// API, please see bug 1318883 where it was removed.
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nsHttpTransaction *trans = (nsHttpTransaction *) closure;
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nsresult rv = trans->mReader->OnReadSegment(buf, count, countRead);
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if (NS_FAILED(rv)) return rv;
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LOG(("nsHttpTransaction::ReadRequestSegment %p read=%u", trans, *countRead));
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trans->mSentData = true;
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return NS_OK;
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}
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nsresult
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nsHttpTransaction::ReadSegments(nsAHttpSegmentReader *reader,
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uint32_t count, uint32_t *countRead)
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{
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LOG(("nsHttpTransaction::ReadSegments %p", this));
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MOZ_ASSERT(OnSocketThread(), "not on socket thread");
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if (mTransactionDone) {
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*countRead = 0;
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return mStatus;
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}
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if (!mConnected && !m0RTTInProgress) {
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mConnected = true;
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mConnection->GetSecurityInfo(getter_AddRefs(mSecurityInfo));
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}
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mDeferredSendProgress = false;
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mReader = reader;
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nsresult rv = mRequestStream->ReadSegments(ReadRequestSegment, this, count, countRead);
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mReader = nullptr;
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if (m0RTTInProgress && (mEarlyDataDisposition == EARLY_NONE) &&
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NS_SUCCEEDED(rv) && (*countRead > 0)) {
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mEarlyDataDisposition = EARLY_SENT;
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}
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if (mDeferredSendProgress && mConnection && mConnection->Transport()) {
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// to avoid using mRequestStream concurrently, OnTransportStatus()
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// did not report upload status off the ReadSegments() stack from nsSocketTransport
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// do it now.
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OnTransportStatus(mConnection->Transport(), NS_NET_STATUS_SENDING_TO, 0);
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}
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mDeferredSendProgress = false;
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if (mForceRestart) {
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// The forceRestart condition was dealt with on the stack, but it did not
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// clear the flag because nsPipe in the readsegment stack clears out
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// return codes, so we need to use the flag here as a cue to return ERETARGETED
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if (NS_SUCCEEDED(rv)) {
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rv = NS_BINDING_RETARGETED;
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}
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mForceRestart = false;
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}
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// if read would block then we need to AsyncWait on the request stream.
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// have callback occur on socket thread so we stay synchronized.
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if (rv == NS_BASE_STREAM_WOULD_BLOCK) {
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nsCOMPtr<nsIAsyncInputStream> asyncIn =
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do_QueryInterface(mRequestStream);
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if (asyncIn) {
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nsCOMPtr<nsIEventTarget> target;
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Unused << gHttpHandler->GetSocketThreadTarget(getter_AddRefs(target));
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if (target)
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asyncIn->AsyncWait(this, 0, 0, target);
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else {
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NS_ERROR("no socket thread event target");
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rv = NS_ERROR_UNEXPECTED;
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}
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}
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}
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return rv;
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}
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nsresult
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nsHttpTransaction::WritePipeSegment(nsIOutputStream *stream,
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void *closure,
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char *buf,
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uint32_t offset,
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uint32_t count,
|
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uint32_t *countWritten)
|
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{
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nsHttpTransaction *trans = (nsHttpTransaction *) closure;
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if (trans->mTransactionDone)
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return NS_BASE_STREAM_CLOSED; // stop iterating
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if (trans->TimingEnabled()) {
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// Set the timestamp to Now(), only if it null
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trans->SetResponseStart(TimeStamp::Now(), true);
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}
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// Bug 1153929 - add checks to fix windows crash
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MOZ_ASSERT(trans->mWriter);
|
|
if (!trans->mWriter) {
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return NS_ERROR_UNEXPECTED;
|
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}
|
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|
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nsresult rv;
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//
|
|
// OK, now let the caller fill this segment with data.
|
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//
|
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rv = trans->mWriter->OnWriteSegment(buf, count, countWritten);
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if (NS_FAILED(rv)) return rv; // caller didn't want to write anything
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LOG(("nsHttpTransaction::WritePipeSegment %p written=%u", trans, *countWritten));
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MOZ_ASSERT(*countWritten > 0, "bad writer");
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trans->mReceivedData = true;
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trans->mTransferSize += *countWritten;
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// Let the transaction "play" with the buffer. It is free to modify
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// the contents of the buffer and/or modify countWritten.
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// - Bytes in HTTP headers don't count towards countWritten, so the input
|
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// side of pipe (aka nsHttpChannel's mTransactionPump) won't hit
|
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// OnInputStreamReady until all headers have been parsed.
|
|
//
|
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rv = trans->ProcessData(buf, *countWritten, countWritten);
|
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if (NS_FAILED(rv))
|
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trans->Close(rv);
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|
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return rv; // failure code only stops WriteSegments; it is not propagated.
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}
|
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|
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bool nsHttpTransaction::ShouldThrottle()
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{
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if (mClassOfService & nsIClassOfService::DontThrottle) {
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// We deliberately don't touch the throttling window here since
|
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// DontThrottle requests are expected to be long-standing media
|
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// streams and would just unnecessarily block running downloads.
|
|
// If we want to ballance bandwidth for media responses against
|
|
// running downloads, we need to find something smarter like
|
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// changing the suspend/resume throttling intervals at-runtime.
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return false;
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}
|
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|
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if (!gHttpHandler->ConnMgr()->ShouldThrottle(this)) {
|
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// We are not obligated to throttle
|
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return false;
|
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}
|
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|
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if (mContentRead < 16000) {
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// Let the first bytes go, it may also well be all the content we get
|
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LOG(("nsHttpTransaction::ShouldThrottle too few content (%" PRIi64 ") this=%p", mContentRead, this));
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return false;
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}
|
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if (!(mClassOfService & nsIClassOfService::Throttleable) &&
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gHttpHandler->ConnMgr()->IsConnEntryUnderPressure(mConnInfo)) {
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LOG(("nsHttpTransaction::ShouldThrottle entry pressure this=%p", this));
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// This is expensive to check (two hashtable lookups) but may help
|
|
// freeing connections for active tab transactions.
|
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// Checking this only for transactions that are not explicitly marked
|
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// as throttleable because trackers and (specially) downloads should
|
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// keep throttling even under pressure.
|
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return false;
|
|
}
|
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|
|
return true;
|
|
}
|
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|
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nsresult
|
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nsHttpTransaction::WriteSegments(nsAHttpSegmentWriter *writer,
|
|
uint32_t count, uint32_t *countWritten)
|
|
{
|
|
LOG(("nsHttpTransaction::WriteSegments %p", this));
|
|
|
|
MOZ_ASSERT(OnSocketThread(), "not on socket thread");
|
|
|
|
if (mTransactionDone) {
|
|
return NS_SUCCEEDED(mStatus) ? NS_BASE_STREAM_CLOSED : mStatus;
|
|
}
|
|
|
|
if (ShouldThrottle()) {
|
|
if (mThrottlingReadAllowance == THROTTLE_NO_LIMIT) { // no limit set
|
|
// V1: ThrottlingReadLimit() returns 0
|
|
mThrottlingReadAllowance = gHttpHandler->ThrottlingReadLimit();
|
|
}
|
|
} else {
|
|
mThrottlingReadAllowance = THROTTLE_NO_LIMIT; // don't limit
|
|
}
|
|
|
|
if (mThrottlingReadAllowance == 0) { // depleted
|
|
if (gHttpHandler->ConnMgr()->CurrentTopLevelOuterContentWindowId() !=
|
|
mTopLevelOuterContentWindowId) {
|
|
nsHttp::NotifyActiveTabLoadOptimization();
|
|
}
|
|
|
|
// Must remember that we have to call ResumeRecv() on our connection when
|
|
// called back by the conn manager to resume reading.
|
|
LOG(("nsHttpTransaction::WriteSegments %p response throttled", this));
|
|
mReadingStopped = true;
|
|
// This makes the underlaying connection or stream wait for explicit resume.
|
|
// For h1 this means we stop reading from the socket.
|
|
// For h2 this means we stop updating recv window for the stream.
|
|
return NS_BASE_STREAM_WOULD_BLOCK;
|
|
}
|
|
|
|
mWriter = writer;
|
|
|
|
#ifdef WIN32 // bug 1153929
|
|
MOZ_DIAGNOSTIC_ASSERT(mPipeOut);
|
|
uint32_t * vtable = (uint32_t *) mPipeOut.get();
|
|
MOZ_DIAGNOSTIC_ASSERT(*vtable != 0);
|
|
#endif // WIN32
|
|
|
|
if (!mPipeOut) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
if (mThrottlingReadAllowance > 0) {
|
|
LOG(("nsHttpTransaction::WriteSegments %p limiting read from %u to %d",
|
|
this, count, mThrottlingReadAllowance));
|
|
count = std::min(count, static_cast<uint32_t>(mThrottlingReadAllowance));
|
|
}
|
|
|
|
nsresult rv = mPipeOut->WriteSegments(WritePipeSegment, this, count, countWritten);
|
|
|
|
mWriter = nullptr;
|
|
|
|
if (mForceRestart) {
|
|
// The forceRestart condition was dealt with on the stack, but it did not
|
|
// clear the flag because nsPipe in the writesegment stack clears out
|
|
// return codes, so we need to use the flag here as a cue to return ERETARGETED
|
|
if (NS_SUCCEEDED(rv)) {
|
|
rv = NS_BINDING_RETARGETED;
|
|
}
|
|
mForceRestart = false;
|
|
}
|
|
|
|
// if pipe would block then we need to AsyncWait on it. have callback
|
|
// occur on socket thread so we stay synchronized.
|
|
if (rv == NS_BASE_STREAM_WOULD_BLOCK) {
|
|
nsCOMPtr<nsIEventTarget> target;
|
|
Unused << gHttpHandler->GetSocketThreadTarget(getter_AddRefs(target));
|
|
if (target) {
|
|
mPipeOut->AsyncWait(this, 0, 0, target);
|
|
mWaitingOnPipeOut = true;
|
|
} else {
|
|
NS_ERROR("no socket thread event target");
|
|
rv = NS_ERROR_UNEXPECTED;
|
|
}
|
|
} else if (mThrottlingReadAllowance > 0 && NS_SUCCEEDED(rv)) {
|
|
MOZ_ASSERT(count >= *countWritten);
|
|
mThrottlingReadAllowance -= *countWritten;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::Close(nsresult reason)
|
|
{
|
|
LOG(("nsHttpTransaction::Close [this=%p reason=%" PRIx32 "]\n",
|
|
this, static_cast<uint32_t>(reason)));
|
|
|
|
if (!mClosed) {
|
|
gHttpHandler->ConnMgr()->RemoveActiveTransaction(this);
|
|
mActivated = false;
|
|
}
|
|
|
|
MOZ_ASSERT(OnSocketThread(), "not on socket thread");
|
|
if (reason == NS_BINDING_RETARGETED) {
|
|
LOG((" close %p skipped due to ERETARGETED\n", this));
|
|
return;
|
|
}
|
|
|
|
if (mClosed) {
|
|
LOG((" already closed\n"));
|
|
return;
|
|
}
|
|
|
|
if (mTransactionObserver) {
|
|
mTransactionObserver->Complete(this, reason);
|
|
mTransactionObserver = nullptr;
|
|
}
|
|
|
|
if (mTokenBucketCancel) {
|
|
mTokenBucketCancel->Cancel(reason);
|
|
mTokenBucketCancel = nullptr;
|
|
}
|
|
|
|
if (mActivityDistributor) {
|
|
// report the reponse is complete if not already reported
|
|
if (!mResponseIsComplete) {
|
|
nsresult rv = mActivityDistributor->ObserveActivity(
|
|
mChannel,
|
|
NS_HTTP_ACTIVITY_TYPE_HTTP_TRANSACTION,
|
|
NS_HTTP_ACTIVITY_SUBTYPE_RESPONSE_COMPLETE,
|
|
PR_Now(),
|
|
static_cast<uint64_t>(mContentRead),
|
|
EmptyCString());
|
|
if (NS_FAILED(rv)) {
|
|
LOG3(("ObserveActivity failed (%08x)", static_cast<uint32_t>(rv)));
|
|
}
|
|
}
|
|
|
|
// report that this transaction is closing
|
|
nsresult rv = mActivityDistributor->ObserveActivity(
|
|
mChannel,
|
|
NS_HTTP_ACTIVITY_TYPE_HTTP_TRANSACTION,
|
|
NS_HTTP_ACTIVITY_SUBTYPE_TRANSACTION_CLOSE,
|
|
PR_Now(), 0, EmptyCString());
|
|
if (NS_FAILED(rv)) {
|
|
LOG3(("ObserveActivity failed (%08x)", static_cast<uint32_t>(rv)));
|
|
}
|
|
}
|
|
|
|
// we must no longer reference the connection! find out if the
|
|
// connection was being reused before letting it go.
|
|
bool connReused = false;
|
|
if (mConnection) {
|
|
connReused = mConnection->IsReused();
|
|
}
|
|
mConnected = false;
|
|
mTunnelProvider = nullptr;
|
|
|
|
//
|
|
// if the connection was reset or closed before we wrote any part of the
|
|
// request or if we wrote the request but didn't receive any part of the
|
|
// response and the connection was being reused, then we can (and really
|
|
// should) assume that we wrote to a stale connection and we must therefore
|
|
// repeat the request over a new connection.
|
|
//
|
|
// We have decided to retry not only in case of the reused connections, but
|
|
// all safe methods(bug 1236277).
|
|
//
|
|
// NOTE: the conditions under which we will automatically retry the HTTP
|
|
// request have to be carefully selected to avoid duplication of the
|
|
// request from the point-of-view of the server. such duplication could
|
|
// have dire consequences including repeated purchases, etc.
|
|
//
|
|
// NOTE: because of the way SSL proxy CONNECT is implemented, it is
|
|
// possible that the transaction may have received data without having
|
|
// sent any data. for this reason, mSendData == FALSE does not imply
|
|
// mReceivedData == FALSE. (see bug 203057 for more info.)
|
|
//
|
|
// Never restart transactions that are marked as sticky to their conenction.
|
|
// We use that capability to identify transactions bound to connection based
|
|
// authentication. Reissuing them on a different connections will break
|
|
// this bondage. Major issue may arise when there is an NTLM message auth
|
|
// header on the transaction and we send it to a different NTLM authenticated
|
|
// connection. It will break that connection and also confuse the channel's
|
|
// auth provider, beliving the cached credentials are wrong and asking for
|
|
// the password mistakenly again from the user.
|
|
if ((reason == NS_ERROR_NET_RESET ||
|
|
reason == NS_OK ||
|
|
reason == psm::GetXPCOMFromNSSError(SSL_ERROR_DOWNGRADE_WITH_EARLY_DATA)) &&
|
|
(!(mCaps & NS_HTTP_STICKY_CONNECTION) || (mCaps & NS_HTTP_CONNECTION_RESTARTABLE) ||
|
|
(mEarlyDataDisposition == EARLY_425))) {
|
|
|
|
if (mForceRestart && NS_SUCCEEDED(Restart())) {
|
|
if (mResponseHead) {
|
|
mResponseHead->Reset();
|
|
}
|
|
mContentRead = 0;
|
|
mContentLength = -1;
|
|
delete mChunkedDecoder;
|
|
mChunkedDecoder = nullptr;
|
|
mHaveStatusLine = false;
|
|
mHaveAllHeaders = false;
|
|
mHttpResponseMatched = false;
|
|
mResponseIsComplete = false;
|
|
mDidContentStart = false;
|
|
mNoContent = false;
|
|
mSentData = false;
|
|
mReceivedData = false;
|
|
LOG(("transaction force restarted\n"));
|
|
return;
|
|
}
|
|
|
|
// reallySentData is meant to separate the instances where data has
|
|
// been sent by this transaction but buffered at a higher level while
|
|
// a TLS session (perhaps via a tunnel) is setup.
|
|
bool reallySentData =
|
|
mSentData && (!mConnection || mConnection->BytesWritten());
|
|
|
|
if (reason == psm::GetXPCOMFromNSSError(SSL_ERROR_DOWNGRADE_WITH_EARLY_DATA) ||
|
|
(!mReceivedData &&
|
|
((mRequestHead && mRequestHead->IsSafeMethod()) ||
|
|
!reallySentData || connReused))) {
|
|
// if restarting fails, then we must proceed to close the pipe,
|
|
// which will notify the channel that the transaction failed.
|
|
|
|
if (NS_SUCCEEDED(Restart()))
|
|
return;
|
|
}
|
|
}
|
|
|
|
if ((mChunkedDecoder || (mContentLength >= int64_t(0))) &&
|
|
(NS_SUCCEEDED(reason) && !mResponseIsComplete)) {
|
|
|
|
NS_WARNING("Partial transfer, incomplete HTTP response received");
|
|
|
|
if ((mHttpResponseCode / 100 == 2) &&
|
|
(mHttpVersion >= HttpVersion::v1_1)) {
|
|
FrameCheckLevel clevel = gHttpHandler->GetEnforceH1Framing();
|
|
if (clevel >= FRAMECHECK_BARELY) {
|
|
if ((clevel == FRAMECHECK_STRICT) ||
|
|
(mChunkedDecoder && mChunkedDecoder->GetChunkRemaining()) ||
|
|
(!mChunkedDecoder && !mContentDecoding && mContentDecodingCheck) ) {
|
|
reason = NS_ERROR_NET_PARTIAL_TRANSFER;
|
|
LOG(("Partial transfer, incomplete HTTP response received: %s",
|
|
mChunkedDecoder ? "broken chunk" : "c-l underrun"));
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mConnection) {
|
|
// whether or not we generate an error for the transaction
|
|
// bad framing means we don't want a pconn
|
|
mConnection->DontReuse();
|
|
}
|
|
}
|
|
|
|
bool relConn = true;
|
|
if (NS_SUCCEEDED(reason)) {
|
|
|
|
// the server has not sent the final \r\n terminating the header
|
|
// section, and there may still be a header line unparsed. let's make
|
|
// sure we parse the remaining header line, and then hopefully, the
|
|
// response will be usable (see bug 88792).
|
|
if (!mHaveAllHeaders) {
|
|
char data = '\n';
|
|
uint32_t unused;
|
|
Unused << ParseHead(&data, 1, &unused);
|
|
|
|
if (mResponseHead->Version() == HttpVersion::v0_9) {
|
|
// Reject 0 byte HTTP/0.9 Responses - bug 423506
|
|
LOG(("nsHttpTransaction::Close %p 0 Byte 0.9 Response", this));
|
|
reason = NS_ERROR_NET_RESET;
|
|
}
|
|
}
|
|
|
|
// honor the sticky connection flag...
|
|
if (mCaps & NS_HTTP_STICKY_CONNECTION)
|
|
relConn = false;
|
|
}
|
|
|
|
// mTimings.responseEnd is normally recorded based on the end of a
|
|
// HTTP delimiter such as chunked-encodings or content-length. However,
|
|
// EOF or an error still require an end time be recorded.
|
|
if (TimingEnabled()) {
|
|
const TimingStruct timings = Timings();
|
|
if (timings.responseEnd.IsNull() && !timings.responseStart.IsNull()) {
|
|
SetResponseEnd(TimeStamp::Now());
|
|
}
|
|
}
|
|
|
|
if (relConn && mConnection) {
|
|
MutexAutoLock lock(mLock);
|
|
mConnection = nullptr;
|
|
}
|
|
|
|
mStatus = reason;
|
|
mTransactionDone = true; // forcibly flag the transaction as complete
|
|
mClosed = true;
|
|
ReleaseBlockingTransaction();
|
|
|
|
// release some resources that we no longer need
|
|
mRequestStream = nullptr;
|
|
mReqHeaderBuf.Truncate();
|
|
mLineBuf.Truncate();
|
|
if (mChunkedDecoder) {
|
|
delete mChunkedDecoder;
|
|
mChunkedDecoder = nullptr;
|
|
}
|
|
|
|
// closing this pipe triggers the channel's OnStopRequest method.
|
|
mPipeOut->CloseWithStatus(reason);
|
|
|
|
#ifdef WIN32 // bug 1153929
|
|
MOZ_DIAGNOSTIC_ASSERT(mPipeOut);
|
|
uint32_t * vtable = (uint32_t *) mPipeOut.get();
|
|
MOZ_DIAGNOSTIC_ASSERT(*vtable != 0);
|
|
mPipeOut = nullptr; // just in case
|
|
#endif // WIN32
|
|
}
|
|
|
|
nsHttpConnectionInfo *
|
|
nsHttpTransaction::ConnectionInfo()
|
|
{
|
|
return mConnInfo.get();
|
|
}
|
|
|
|
bool // NOTE BASE CLASS
|
|
nsAHttpTransaction::ResponseTimeoutEnabled() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
PRIntervalTime // NOTE BASE CLASS
|
|
nsAHttpTransaction::ResponseTimeout()
|
|
{
|
|
return gHttpHandler->ResponseTimeout();
|
|
}
|
|
|
|
bool
|
|
nsHttpTransaction::ResponseTimeoutEnabled() const
|
|
{
|
|
return mResponseTimeoutEnabled;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// nsHttpTransaction <private>
|
|
//-----------------------------------------------------------------------------
|
|
|
|
nsresult
|
|
nsHttpTransaction::Restart()
|
|
{
|
|
MOZ_ASSERT(OnSocketThread(), "not on socket thread");
|
|
|
|
// limit the number of restart attempts - bug 92224
|
|
if (++mRestartCount >= gHttpHandler->MaxRequestAttempts()) {
|
|
LOG(("reached max request attempts, failing transaction @%p\n", this));
|
|
return NS_ERROR_NET_RESET;
|
|
}
|
|
|
|
LOG(("restarting transaction @%p\n", this));
|
|
mTunnelProvider = nullptr;
|
|
|
|
// rewind streams in case we already wrote out the request
|
|
nsCOMPtr<nsISeekableStream> seekable = do_QueryInterface(mRequestStream);
|
|
if (seekable)
|
|
seekable->Seek(nsISeekableStream::NS_SEEK_SET, 0);
|
|
|
|
// clear old connection state...
|
|
mSecurityInfo = nullptr;
|
|
if (mConnection) {
|
|
if (!mReuseOnRestart) {
|
|
mConnection->DontReuse();
|
|
}
|
|
MutexAutoLock lock(mLock);
|
|
mConnection = nullptr;
|
|
}
|
|
|
|
// Reset this to our default state, since this may change from one restart
|
|
// to the next
|
|
mReuseOnRestart = false;
|
|
|
|
if (!mConnInfo->GetRoutedHost().IsEmpty()) {
|
|
MutexAutoLock lock(*nsHttp::GetLock());
|
|
RefPtr<nsHttpConnectionInfo> ci;
|
|
mConnInfo->CloneAsDirectRoute(getter_AddRefs(ci));
|
|
mConnInfo = ci;
|
|
if (mRequestHead) {
|
|
DebugOnly<nsresult> rv =
|
|
mRequestHead->SetHeader(nsHttp::Alternate_Service_Used,
|
|
NS_LITERAL_CSTRING("0"));
|
|
MOZ_ASSERT(NS_SUCCEEDED(rv));
|
|
}
|
|
}
|
|
|
|
return gHttpHandler->InitiateTransaction(this, mPriority);
|
|
}
|
|
|
|
char *
|
|
nsHttpTransaction::LocateHttpStart(char *buf, uint32_t len,
|
|
bool aAllowPartialMatch)
|
|
{
|
|
MOZ_ASSERT(!aAllowPartialMatch || mLineBuf.IsEmpty());
|
|
|
|
static const char HTTPHeader[] = "HTTP/1.";
|
|
static const uint32_t HTTPHeaderLen = sizeof(HTTPHeader) - 1;
|
|
static const char HTTP2Header[] = "HTTP/2.0";
|
|
static const uint32_t HTTP2HeaderLen = sizeof(HTTP2Header) - 1;
|
|
// ShoutCast ICY is treated as HTTP/1.0
|
|
static const char ICYHeader[] = "ICY ";
|
|
static const uint32_t ICYHeaderLen = sizeof(ICYHeader) - 1;
|
|
|
|
if (aAllowPartialMatch && (len < HTTPHeaderLen))
|
|
return (PL_strncasecmp(buf, HTTPHeader, len) == 0) ? buf : nullptr;
|
|
|
|
// mLineBuf can contain partial match from previous search
|
|
if (!mLineBuf.IsEmpty()) {
|
|
MOZ_ASSERT(mLineBuf.Length() < HTTPHeaderLen);
|
|
int32_t checkChars = std::min(len, HTTPHeaderLen - mLineBuf.Length());
|
|
if (PL_strncasecmp(buf, HTTPHeader + mLineBuf.Length(),
|
|
checkChars) == 0) {
|
|
mLineBuf.Append(buf, checkChars);
|
|
if (mLineBuf.Length() == HTTPHeaderLen) {
|
|
// We've found whole HTTPHeader sequence. Return pointer at the
|
|
// end of matched sequence since it is stored in mLineBuf.
|
|
return (buf + checkChars);
|
|
}
|
|
// Response matches pattern but is still incomplete.
|
|
return nullptr;
|
|
}
|
|
// Previous partial match together with new data doesn't match the
|
|
// pattern. Start the search again.
|
|
mLineBuf.Truncate();
|
|
}
|
|
|
|
bool firstByte = true;
|
|
while (len > 0) {
|
|
if (PL_strncasecmp(buf, HTTPHeader, std::min<uint32_t>(len, HTTPHeaderLen)) == 0) {
|
|
if (len < HTTPHeaderLen) {
|
|
// partial HTTPHeader sequence found
|
|
// save partial match to mLineBuf
|
|
mLineBuf.Assign(buf, len);
|
|
return nullptr;
|
|
}
|
|
|
|
// whole HTTPHeader sequence found
|
|
return buf;
|
|
}
|
|
|
|
// At least "SmarterTools/2.0.3974.16813" generates nonsensical
|
|
// HTTP/2.0 responses to our HTTP/1 requests. Treat the minimal case of
|
|
// it as HTTP/1.1 to be compatible with old versions of ourselves and
|
|
// other browsers
|
|
|
|
if (firstByte && !mInvalidResponseBytesRead && len >= HTTP2HeaderLen &&
|
|
(PL_strncasecmp(buf, HTTP2Header, HTTP2HeaderLen) == 0)) {
|
|
LOG(("nsHttpTransaction:: Identified HTTP/2.0 treating as 1.x\n"));
|
|
return buf;
|
|
}
|
|
|
|
// Treat ICY (AOL/Nullsoft ShoutCast) non-standard header in same fashion
|
|
// as HTTP/2.0 is treated above. This will allow "ICY " to be interpretted
|
|
// as HTTP/1.0 in nsHttpResponseHead::ParseVersion
|
|
|
|
if (firstByte && !mInvalidResponseBytesRead && len >= ICYHeaderLen &&
|
|
(PL_strncasecmp(buf, ICYHeader, ICYHeaderLen) == 0)) {
|
|
LOG(("nsHttpTransaction:: Identified ICY treating as HTTP/1.0\n"));
|
|
return buf;
|
|
}
|
|
|
|
if (!nsCRT::IsAsciiSpace(*buf))
|
|
firstByte = false;
|
|
buf++;
|
|
len--;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
nsresult
|
|
nsHttpTransaction::ParseLine(nsACString &line)
|
|
{
|
|
LOG(("nsHttpTransaction::ParseLine [%s]\n", PromiseFlatCString(line).get()));
|
|
nsresult rv = NS_OK;
|
|
|
|
if (!mHaveStatusLine) {
|
|
mResponseHead->ParseStatusLine(line);
|
|
mHaveStatusLine = true;
|
|
// XXX this should probably never happen
|
|
if (mResponseHead->Version() == HttpVersion::v0_9)
|
|
mHaveAllHeaders = true;
|
|
}
|
|
else {
|
|
rv = mResponseHead->ParseHeaderLine(line);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsHttpTransaction::ParseLineSegment(char *segment, uint32_t len)
|
|
{
|
|
MOZ_ASSERT(!mHaveAllHeaders, "already have all headers");
|
|
|
|
if (!mLineBuf.IsEmpty() && mLineBuf.Last() == '\n') {
|
|
// trim off the new line char, and if this segment is
|
|
// not a continuation of the previous or if we haven't
|
|
// parsed the status line yet, then parse the contents
|
|
// of mLineBuf.
|
|
mLineBuf.Truncate(mLineBuf.Length() - 1);
|
|
if (!mHaveStatusLine || (*segment != ' ' && *segment != '\t')) {
|
|
nsresult rv = ParseLine(mLineBuf);
|
|
mLineBuf.Truncate();
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
|
|
// append segment to mLineBuf...
|
|
mLineBuf.Append(segment, len);
|
|
|
|
// a line buf with only a new line char signifies the end of headers.
|
|
if (mLineBuf.First() == '\n') {
|
|
mLineBuf.Truncate();
|
|
// discard this response if it is a 100 continue or other 1xx status.
|
|
uint16_t status = mResponseHead->Status();
|
|
if ((status != 101) && (status / 100 == 1)) {
|
|
LOG(("ignoring 1xx response\n"));
|
|
mHaveStatusLine = false;
|
|
mHttpResponseMatched = false;
|
|
mConnection->SetLastTransactionExpectedNoContent(true);
|
|
mResponseHead->Reset();
|
|
return NS_OK;
|
|
}
|
|
mHaveAllHeaders = true;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsHttpTransaction::ParseHead(char *buf,
|
|
uint32_t count,
|
|
uint32_t *countRead)
|
|
{
|
|
nsresult rv;
|
|
uint32_t len;
|
|
char *eol;
|
|
|
|
LOG(("nsHttpTransaction::ParseHead [count=%u]\n", count));
|
|
|
|
*countRead = 0;
|
|
|
|
MOZ_ASSERT(!mHaveAllHeaders, "oops");
|
|
|
|
// allocate the response head object if necessary
|
|
if (!mResponseHead) {
|
|
mResponseHead = new nsHttpResponseHead();
|
|
if (!mResponseHead)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
// report that we have a least some of the response
|
|
if (mActivityDistributor && !mReportedStart) {
|
|
mReportedStart = true;
|
|
rv = mActivityDistributor->ObserveActivity(
|
|
mChannel,
|
|
NS_HTTP_ACTIVITY_TYPE_HTTP_TRANSACTION,
|
|
NS_HTTP_ACTIVITY_SUBTYPE_RESPONSE_START,
|
|
PR_Now(), 0, EmptyCString());
|
|
if (NS_FAILED(rv)) {
|
|
LOG3(("ObserveActivity failed (%08x)",
|
|
static_cast<uint32_t>(rv)));
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!mHttpResponseMatched) {
|
|
// Normally we insist on seeing HTTP/1.x in the first few bytes,
|
|
// but if we are on a persistent connection and the previous transaction
|
|
// was not supposed to have any content then we need to be prepared
|
|
// to skip over a response body that the server may have sent even
|
|
// though it wasn't allowed.
|
|
if (!mConnection || !mConnection->LastTransactionExpectedNoContent()) {
|
|
// tolerate only minor junk before the status line
|
|
mHttpResponseMatched = true;
|
|
char *p = LocateHttpStart(buf, std::min<uint32_t>(count, 11), true);
|
|
if (!p) {
|
|
// Treat any 0.9 style response of a put as a failure.
|
|
if (mRequestHead->IsPut())
|
|
return NS_ERROR_ABORT;
|
|
|
|
mResponseHead->ParseStatusLine(EmptyCString());
|
|
mHaveStatusLine = true;
|
|
mHaveAllHeaders = true;
|
|
return NS_OK;
|
|
}
|
|
if (p > buf) {
|
|
// skip over the junk
|
|
mInvalidResponseBytesRead += p - buf;
|
|
*countRead = p - buf;
|
|
buf = p;
|
|
}
|
|
}
|
|
else {
|
|
char *p = LocateHttpStart(buf, count, false);
|
|
if (p) {
|
|
mInvalidResponseBytesRead += p - buf;
|
|
*countRead = p - buf;
|
|
buf = p;
|
|
mHttpResponseMatched = true;
|
|
} else {
|
|
mInvalidResponseBytesRead += count;
|
|
*countRead = count;
|
|
if (mInvalidResponseBytesRead > MAX_INVALID_RESPONSE_BODY_SIZE) {
|
|
LOG(("nsHttpTransaction::ParseHead() "
|
|
"Cannot find Response Header\n"));
|
|
// cannot go back and call this 0.9 anymore as we
|
|
// have thrown away a lot of the leading junk
|
|
return NS_ERROR_ABORT;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
}
|
|
}
|
|
// otherwise we can assume that we don't have a HTTP/0.9 response.
|
|
|
|
MOZ_ASSERT (mHttpResponseMatched);
|
|
while ((eol = static_cast<char *>(memchr(buf, '\n', count - *countRead))) != nullptr) {
|
|
// found line in range [buf:eol]
|
|
len = eol - buf + 1;
|
|
|
|
*countRead += len;
|
|
|
|
// actually, the line is in the range [buf:eol-1]
|
|
if ((eol > buf) && (*(eol-1) == '\r'))
|
|
len--;
|
|
|
|
buf[len-1] = '\n';
|
|
rv = ParseLineSegment(buf, len);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (mHaveAllHeaders)
|
|
return NS_OK;
|
|
|
|
// skip over line
|
|
buf = eol + 1;
|
|
|
|
if (!mHttpResponseMatched) {
|
|
// a 100 class response has caused us to throw away that set of
|
|
// response headers and look for the next response
|
|
return NS_ERROR_NET_INTERRUPT;
|
|
}
|
|
}
|
|
|
|
// do something about a partial header line
|
|
if (!mHaveAllHeaders && (len = count - *countRead)) {
|
|
*countRead = count;
|
|
// ignore a trailing carriage return, and don't bother calling
|
|
// ParseLineSegment if buf only contains a carriage return.
|
|
if ((buf[len-1] == '\r') && (--len == 0))
|
|
return NS_OK;
|
|
rv = ParseLineSegment(buf, len);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsHttpTransaction::HandleContentStart()
|
|
{
|
|
LOG(("nsHttpTransaction::HandleContentStart [this=%p]\n", this));
|
|
MOZ_ASSERT(OnSocketThread(), "not on socket thread");
|
|
|
|
if (mResponseHead) {
|
|
if (mEarlyDataDisposition == EARLY_ACCEPTED) {
|
|
if (mResponseHead->Status() == 425) {
|
|
// We will report this state when the final responce arrives.
|
|
mEarlyDataDisposition = EARLY_425;
|
|
} else {
|
|
Unused << mResponseHead->SetHeader(nsHttp::X_Firefox_Early_Data, NS_LITERAL_CSTRING("accepted"));
|
|
}
|
|
} else if (mEarlyDataDisposition == EARLY_SENT) {
|
|
Unused << mResponseHead->SetHeader(nsHttp::X_Firefox_Early_Data, NS_LITERAL_CSTRING("sent"));
|
|
} else if (mEarlyDataDisposition == EARLY_425) {
|
|
Unused << mResponseHead->SetHeader(nsHttp::X_Firefox_Early_Data, NS_LITERAL_CSTRING("received 425"));
|
|
mEarlyDataDisposition = EARLY_NONE;
|
|
} // no header on NONE case
|
|
|
|
if (mFastOpenStatus == TFO_DATA_SENT) {
|
|
Unused << mResponseHead->SetHeader(nsHttp::X_Firefox_TCP_Fast_Open, NS_LITERAL_CSTRING("data sent"));
|
|
} else if (mFastOpenStatus == TFO_TRIED) {
|
|
Unused << mResponseHead->SetHeader(nsHttp::X_Firefox_TCP_Fast_Open, NS_LITERAL_CSTRING("tried negotiating"));
|
|
} else if (mFastOpenStatus == TFO_FAILED) {
|
|
Unused << mResponseHead->SetHeader(nsHttp::X_Firefox_TCP_Fast_Open, NS_LITERAL_CSTRING("failed"));
|
|
} // no header on TFO_NOT_TRIED case
|
|
|
|
if (LOG3_ENABLED()) {
|
|
LOG3(("http response [\n"));
|
|
nsAutoCString headers;
|
|
mResponseHead->Flatten(headers, false);
|
|
headers.AppendLiteral(" OriginalHeaders");
|
|
headers.AppendLiteral("\r\n");
|
|
mResponseHead->FlattenNetworkOriginalHeaders(headers);
|
|
LogHeaders(headers.get());
|
|
LOG3(("]\n"));
|
|
}
|
|
|
|
CheckForStickyAuthScheme();
|
|
|
|
// Save http version, mResponseHead isn't available anymore after
|
|
// TakeResponseHead() is called
|
|
mHttpVersion = mResponseHead->Version();
|
|
mHttpResponseCode = mResponseHead->Status();
|
|
|
|
// notify the connection, give it a chance to cause a reset.
|
|
bool reset = false;
|
|
nsresult rv = mConnection->OnHeadersAvailable(this, mRequestHead,
|
|
mResponseHead, &reset);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// looks like we should ignore this response, resetting...
|
|
if (reset) {
|
|
LOG(("resetting transaction's response head\n"));
|
|
mHaveAllHeaders = false;
|
|
mHaveStatusLine = false;
|
|
mReceivedData = false;
|
|
mSentData = false;
|
|
mHttpResponseMatched = false;
|
|
mResponseHead->Reset();
|
|
// wait to be called again...
|
|
return NS_OK;
|
|
}
|
|
|
|
// check if this is a no-content response
|
|
switch (mResponseHead->Status()) {
|
|
case 101:
|
|
mPreserveStream = true;
|
|
MOZ_FALLTHROUGH; // to other no content cases:
|
|
case 204:
|
|
case 205:
|
|
case 304:
|
|
mNoContent = true;
|
|
LOG(("this response should not contain a body.\n"));
|
|
break;
|
|
case 421:
|
|
LOG(("Misdirected Request.\n"));
|
|
gHttpHandler->ConnMgr()->ClearHostMapping(mConnInfo);
|
|
|
|
// retry on a new connection - just in case
|
|
if (!mRestartCount) {
|
|
mCaps &= ~NS_HTTP_ALLOW_KEEPALIVE;
|
|
mForceRestart = true; // force restart has built in loop protection
|
|
return NS_ERROR_NET_RESET;
|
|
}
|
|
break;
|
|
case 425:
|
|
LOG(("Too Early."));
|
|
if ((mEarlyDataDisposition == EARLY_425) && !mDoNotTryEarlyData) {
|
|
mDoNotTryEarlyData = true;
|
|
mForceRestart = true; // force restart has built in loop protection
|
|
if (mConnection->Version() == HttpVersion::v2_0) {
|
|
mReuseOnRestart = true;
|
|
}
|
|
return NS_ERROR_NET_RESET;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (mResponseHead->Status() == 200 &&
|
|
mConnection->IsProxyConnectInProgress()) {
|
|
// successful CONNECTs do not have response bodies
|
|
mNoContent = true;
|
|
}
|
|
mConnection->SetLastTransactionExpectedNoContent(mNoContent);
|
|
|
|
if (mNoContent) {
|
|
mContentLength = 0;
|
|
} else {
|
|
// grab the content-length from the response headers
|
|
mContentLength = mResponseHead->ContentLength();
|
|
|
|
// handle chunked encoding here, so we'll know immediately when
|
|
// we're done with the socket. please note that _all_ other
|
|
// decoding is done when the channel receives the content data
|
|
// so as not to block the socket transport thread too much.
|
|
if (mResponseHead->Version() >= HttpVersion::v1_0 &&
|
|
mResponseHead->HasHeaderValue(nsHttp::Transfer_Encoding, "chunked")) {
|
|
// we only support the "chunked" transfer encoding right now.
|
|
mChunkedDecoder = new nsHttpChunkedDecoder();
|
|
LOG(("nsHttpTransaction %p chunked decoder created\n", this));
|
|
// Ignore server specified Content-Length.
|
|
if (mContentLength != int64_t(-1)) {
|
|
LOG(("nsHttpTransaction %p chunked with C-L ignores C-L\n", this));
|
|
mContentLength = -1;
|
|
if (mConnection) {
|
|
mConnection->DontReuse();
|
|
}
|
|
}
|
|
}
|
|
else if (mContentLength == int64_t(-1))
|
|
LOG(("waiting for the server to close the connection.\n"));
|
|
}
|
|
}
|
|
|
|
mDidContentStart = true;
|
|
return NS_OK;
|
|
}
|
|
|
|
// called on the socket thread
|
|
nsresult
|
|
nsHttpTransaction::HandleContent(char *buf,
|
|
uint32_t count,
|
|
uint32_t *contentRead,
|
|
uint32_t *contentRemaining)
|
|
{
|
|
nsresult rv;
|
|
|
|
LOG(("nsHttpTransaction::HandleContent [this=%p count=%u]\n", this, count));
|
|
|
|
*contentRead = 0;
|
|
*contentRemaining = 0;
|
|
|
|
MOZ_ASSERT(mConnection);
|
|
|
|
if (!mDidContentStart) {
|
|
rv = HandleContentStart();
|
|
if (NS_FAILED(rv)) return rv;
|
|
// Do not write content to the pipe if we haven't started streaming yet
|
|
if (!mDidContentStart)
|
|
return NS_OK;
|
|
}
|
|
|
|
if (mChunkedDecoder) {
|
|
// give the buf over to the chunked decoder so it can reformat the
|
|
// data and tell us how much is really there.
|
|
rv = mChunkedDecoder->HandleChunkedContent(buf, count, contentRead, contentRemaining);
|
|
if (NS_FAILED(rv)) return rv;
|
|
}
|
|
else if (mContentLength >= int64_t(0)) {
|
|
// HTTP/1.0 servers have been known to send erroneous Content-Length
|
|
// headers. So, unless the connection is persistent, we must make
|
|
// allowances for a possibly invalid Content-Length header. Thus, if
|
|
// NOT persistent, we simply accept everything in |buf|.
|
|
if (mConnection->IsPersistent() || mPreserveStream ||
|
|
mHttpVersion >= HttpVersion::v1_1) {
|
|
int64_t remaining = mContentLength - mContentRead;
|
|
*contentRead = uint32_t(std::min<int64_t>(count, remaining));
|
|
*contentRemaining = count - *contentRead;
|
|
}
|
|
else {
|
|
*contentRead = count;
|
|
// mContentLength might need to be increased...
|
|
int64_t position = mContentRead + int64_t(count);
|
|
if (position > mContentLength) {
|
|
mContentLength = position;
|
|
//mResponseHead->SetContentLength(mContentLength);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// when we are just waiting for the server to close the connection...
|
|
// (no explicit content-length given)
|
|
*contentRead = count;
|
|
}
|
|
|
|
if (*contentRead) {
|
|
// update count of content bytes read and report progress...
|
|
mContentRead += *contentRead;
|
|
}
|
|
|
|
LOG(("nsHttpTransaction::HandleContent [this=%p count=%u read=%u mContentRead=%" PRId64 " mContentLength=%" PRId64 "]\n",
|
|
this, count, *contentRead, mContentRead, mContentLength));
|
|
|
|
// check for end-of-file
|
|
if ((mContentRead == mContentLength) ||
|
|
(mChunkedDecoder && mChunkedDecoder->ReachedEOF())) {
|
|
MutexAutoLock lock(*nsHttp::GetLock());
|
|
if (mChunkedDecoder) {
|
|
mForTakeResponseTrailers = mChunkedDecoder->TakeTrailers();
|
|
}
|
|
|
|
// the transaction is done with a complete response.
|
|
mTransactionDone = true;
|
|
mResponseIsComplete = true;
|
|
ReleaseBlockingTransaction();
|
|
|
|
if (TimingEnabled()) {
|
|
SetResponseEnd(TimeStamp::Now());
|
|
}
|
|
|
|
// report the entire response has arrived
|
|
if (mActivityDistributor) {
|
|
rv = mActivityDistributor->ObserveActivity(
|
|
mChannel,
|
|
NS_HTTP_ACTIVITY_TYPE_HTTP_TRANSACTION,
|
|
NS_HTTP_ACTIVITY_SUBTYPE_RESPONSE_COMPLETE,
|
|
PR_Now(),
|
|
static_cast<uint64_t>(mContentRead),
|
|
EmptyCString());
|
|
if (NS_FAILED(rv)) {
|
|
LOG3(("ObserveActivity failed (%08x)",
|
|
static_cast<uint32_t>(rv)));
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsHttpTransaction::ProcessData(char *buf, uint32_t count, uint32_t *countRead)
|
|
{
|
|
nsresult rv;
|
|
|
|
LOG(("nsHttpTransaction::ProcessData [this=%p count=%u]\n", this, count));
|
|
|
|
*countRead = 0;
|
|
|
|
// we may not have read all of the headers yet...
|
|
if (!mHaveAllHeaders) {
|
|
uint32_t bytesConsumed = 0;
|
|
|
|
do {
|
|
uint32_t localBytesConsumed = 0;
|
|
char *localBuf = buf + bytesConsumed;
|
|
uint32_t localCount = count - bytesConsumed;
|
|
|
|
rv = ParseHead(localBuf, localCount, &localBytesConsumed);
|
|
if (NS_FAILED(rv) && rv != NS_ERROR_NET_INTERRUPT)
|
|
return rv;
|
|
bytesConsumed += localBytesConsumed;
|
|
} while (rv == NS_ERROR_NET_INTERRUPT);
|
|
|
|
mCurrentHttpResponseHeaderSize += bytesConsumed;
|
|
if (mCurrentHttpResponseHeaderSize >
|
|
gHttpHandler->MaxHttpResponseHeaderSize()) {
|
|
LOG(("nsHttpTransaction %p The response header exceeds the limit.\n",
|
|
this));
|
|
return NS_ERROR_FILE_TOO_BIG;
|
|
}
|
|
count -= bytesConsumed;
|
|
|
|
// if buf has some content in it, shift bytes to top of buf.
|
|
if (count && bytesConsumed)
|
|
memmove(buf, buf + bytesConsumed, count);
|
|
|
|
// report the completed response header
|
|
if (mActivityDistributor && mResponseHead && mHaveAllHeaders &&
|
|
!mReportedResponseHeader) {
|
|
mReportedResponseHeader = true;
|
|
nsAutoCString completeResponseHeaders;
|
|
mResponseHead->Flatten(completeResponseHeaders, false);
|
|
completeResponseHeaders.AppendLiteral("\r\n");
|
|
rv = mActivityDistributor->ObserveActivity(
|
|
mChannel,
|
|
NS_HTTP_ACTIVITY_TYPE_HTTP_TRANSACTION,
|
|
NS_HTTP_ACTIVITY_SUBTYPE_RESPONSE_HEADER,
|
|
PR_Now(), 0,
|
|
completeResponseHeaders);
|
|
if (NS_FAILED(rv)) {
|
|
LOG3(("ObserveActivity failed (%08x)",
|
|
static_cast<uint32_t>(rv)));
|
|
}
|
|
}
|
|
}
|
|
|
|
// even though count may be 0, we still want to call HandleContent
|
|
// so it can complete the transaction if this is a "no-content" response.
|
|
if (mHaveAllHeaders) {
|
|
uint32_t countRemaining = 0;
|
|
//
|
|
// buf layout:
|
|
//
|
|
// +--------------------------------------+----------------+-----+
|
|
// | countRead | countRemaining | |
|
|
// +--------------------------------------+----------------+-----+
|
|
//
|
|
// count : bytes read from the socket
|
|
// countRead : bytes corresponding to this transaction
|
|
// countRemaining : bytes corresponding to next transaction on conn
|
|
//
|
|
// NOTE:
|
|
// count > countRead + countRemaining <==> chunked transfer encoding
|
|
//
|
|
rv = HandleContent(buf, count, countRead, &countRemaining);
|
|
if (NS_FAILED(rv)) return rv;
|
|
// we may have read more than our share, in which case we must give
|
|
// the excess bytes back to the connection
|
|
if (mResponseIsComplete && countRemaining) {
|
|
MOZ_ASSERT(mConnection);
|
|
rv = mConnection->PushBack(buf + *countRead, countRemaining);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
if (!mContentDecodingCheck && mResponseHead) {
|
|
mContentDecoding =
|
|
mResponseHead->HasHeader(nsHttp::Content_Encoding);
|
|
mContentDecodingCheck = true;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::SetRequestContext(nsIRequestContext *aRequestContext)
|
|
{
|
|
LOG(("nsHttpTransaction %p SetRequestContext %p\n", this, aRequestContext));
|
|
mRequestContext = aRequestContext;
|
|
}
|
|
|
|
// Called when the transaction marked for blocking is associated with a connection
|
|
// (i.e. added to a new h1 conn, an idle http connection, etc..)
|
|
// It is safe to call this multiple times with it only
|
|
// having an effect once.
|
|
void
|
|
nsHttpTransaction::DispatchedAsBlocking()
|
|
{
|
|
if (mDispatchedAsBlocking)
|
|
return;
|
|
|
|
LOG(("nsHttpTransaction %p dispatched as blocking\n", this));
|
|
|
|
if (!mRequestContext)
|
|
return;
|
|
|
|
LOG(("nsHttpTransaction adding blocking transaction %p from "
|
|
"request context %p\n", this, mRequestContext.get()));
|
|
|
|
mRequestContext->AddBlockingTransaction();
|
|
mDispatchedAsBlocking = true;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::RemoveDispatchedAsBlocking()
|
|
{
|
|
if (!mRequestContext || !mDispatchedAsBlocking) {
|
|
LOG(("nsHttpTransaction::RemoveDispatchedAsBlocking this=%p not blocking",
|
|
this));
|
|
return;
|
|
}
|
|
|
|
uint32_t blockers = 0;
|
|
nsresult rv = mRequestContext->RemoveBlockingTransaction(&blockers);
|
|
|
|
LOG(("nsHttpTransaction removing blocking transaction %p from "
|
|
"request context %p. %d blockers remain.\n", this,
|
|
mRequestContext.get(), blockers));
|
|
|
|
if (NS_SUCCEEDED(rv) && !blockers) {
|
|
LOG(("nsHttpTransaction %p triggering release of blocked channels "
|
|
" with request context=%p\n", this, mRequestContext.get()));
|
|
rv = gHttpHandler->ConnMgr()->ProcessPendingQ();
|
|
if (NS_FAILED(rv)) {
|
|
LOG(("nsHttpTransaction::RemoveDispatchedAsBlocking\n"
|
|
" failed to process pending queue\n"));
|
|
}
|
|
}
|
|
|
|
mDispatchedAsBlocking = false;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::ReleaseBlockingTransaction()
|
|
{
|
|
RemoveDispatchedAsBlocking();
|
|
LOG(("nsHttpTransaction %p request context set to null "
|
|
"in ReleaseBlockingTransaction() - was %p\n", this, mRequestContext.get()));
|
|
mRequestContext = nullptr;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::DisableSpdy()
|
|
{
|
|
mCaps |= NS_HTTP_DISALLOW_SPDY;
|
|
if (mConnInfo) {
|
|
// This is our clone of the connection info, not the persistent one that
|
|
// is owned by the connection manager, so we're safe to change this here
|
|
mConnInfo->SetNoSpdy(true);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::CheckForStickyAuthScheme()
|
|
{
|
|
LOG(("nsHttpTransaction::CheckForStickyAuthScheme this=%p", this));
|
|
|
|
MOZ_ASSERT(mHaveAllHeaders);
|
|
MOZ_ASSERT(mResponseHead);
|
|
MOZ_ASSERT(OnSocketThread(), "not on socket thread");
|
|
|
|
CheckForStickyAuthSchemeAt(nsHttp::WWW_Authenticate);
|
|
CheckForStickyAuthSchemeAt(nsHttp::Proxy_Authenticate);
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::CheckForStickyAuthSchemeAt(nsHttpAtom const& header)
|
|
{
|
|
if (mCaps & NS_HTTP_STICKY_CONNECTION) {
|
|
LOG((" already sticky"));
|
|
return;
|
|
}
|
|
|
|
nsAutoCString auth;
|
|
if (NS_FAILED(mResponseHead->GetHeader(header, auth))) {
|
|
return;
|
|
}
|
|
|
|
Tokenizer p(auth);
|
|
nsAutoCString schema;
|
|
while (p.ReadWord(schema)) {
|
|
ToLowerCase(schema);
|
|
|
|
nsAutoCString contractid;
|
|
contractid.AssignLiteral(NS_HTTP_AUTHENTICATOR_CONTRACTID_PREFIX);
|
|
contractid.Append(schema);
|
|
|
|
// using a new instance because of thread safety of auth modules refcnt
|
|
nsCOMPtr<nsIHttpAuthenticator> authenticator(do_CreateInstance(contractid.get()));
|
|
if (authenticator) {
|
|
uint32_t flags;
|
|
nsresult rv = authenticator->GetAuthFlags(&flags);
|
|
if (NS_SUCCEEDED(rv) && (flags & nsIHttpAuthenticator::CONNECTION_BASED)) {
|
|
LOG((" connection made sticky, found %s auth shema", schema.get()));
|
|
// This is enough to make this transaction keep it's current connection,
|
|
// prevents the connection from being released back to the pool.
|
|
mCaps |= NS_HTTP_STICKY_CONNECTION;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// schemes are separated with LFs, nsHttpHeaderArray::MergeHeader
|
|
p.SkipUntil(Tokenizer::Token::NewLine());
|
|
p.SkipWhites(Tokenizer::INCLUDE_NEW_LINE);
|
|
}
|
|
}
|
|
|
|
const TimingStruct
|
|
nsHttpTransaction::Timings()
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
TimingStruct timings = mTimings;
|
|
return timings;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::BootstrapTimings(TimingStruct times)
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
mTimings = times;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::SetDomainLookupStart(mozilla::TimeStamp timeStamp, bool onlyIfNull)
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
if (onlyIfNull && !mTimings.domainLookupStart.IsNull()) {
|
|
return; // We only set the timestamp if it was previously null
|
|
}
|
|
mTimings.domainLookupStart = timeStamp;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::SetDomainLookupEnd(mozilla::TimeStamp timeStamp, bool onlyIfNull)
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
if (onlyIfNull && !mTimings.domainLookupEnd.IsNull()) {
|
|
return; // We only set the timestamp if it was previously null
|
|
}
|
|
mTimings.domainLookupEnd = timeStamp;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::SetConnectStart(mozilla::TimeStamp timeStamp, bool onlyIfNull)
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
if (onlyIfNull && !mTimings.connectStart.IsNull()) {
|
|
return; // We only set the timestamp if it was previously null
|
|
}
|
|
mTimings.connectStart = timeStamp;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::SetConnectEnd(mozilla::TimeStamp timeStamp, bool onlyIfNull)
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
if (onlyIfNull && !mTimings.connectEnd.IsNull()) {
|
|
return; // We only set the timestamp if it was previously null
|
|
}
|
|
mTimings.connectEnd = timeStamp;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::SetRequestStart(mozilla::TimeStamp timeStamp, bool onlyIfNull)
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
if (onlyIfNull && !mTimings.requestStart.IsNull()) {
|
|
return; // We only set the timestamp if it was previously null
|
|
}
|
|
mTimings.requestStart = timeStamp;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::SetResponseStart(mozilla::TimeStamp timeStamp, bool onlyIfNull)
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
if (onlyIfNull && !mTimings.responseStart.IsNull()) {
|
|
return; // We only set the timestamp if it was previously null
|
|
}
|
|
mTimings.responseStart = timeStamp;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::SetResponseEnd(mozilla::TimeStamp timeStamp, bool onlyIfNull)
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
if (onlyIfNull && !mTimings.responseEnd.IsNull()) {
|
|
return; // We only set the timestamp if it was previously null
|
|
}
|
|
mTimings.responseEnd = timeStamp;
|
|
}
|
|
|
|
mozilla::TimeStamp
|
|
nsHttpTransaction::GetDomainLookupStart()
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
return mTimings.domainLookupStart;
|
|
}
|
|
|
|
mozilla::TimeStamp
|
|
nsHttpTransaction::GetDomainLookupEnd()
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
return mTimings.domainLookupEnd;
|
|
}
|
|
|
|
mozilla::TimeStamp
|
|
nsHttpTransaction::GetConnectStart()
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
return mTimings.connectStart;
|
|
}
|
|
|
|
mozilla::TimeStamp
|
|
nsHttpTransaction::GetTcpConnectEnd()
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
return mTimings.tcpConnectEnd;
|
|
}
|
|
|
|
mozilla::TimeStamp
|
|
nsHttpTransaction::GetSecureConnectionStart()
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
return mTimings.secureConnectionStart;
|
|
}
|
|
|
|
mozilla::TimeStamp
|
|
nsHttpTransaction::GetConnectEnd()
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
return mTimings.connectEnd;
|
|
}
|
|
|
|
mozilla::TimeStamp
|
|
nsHttpTransaction::GetRequestStart()
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
return mTimings.requestStart;
|
|
}
|
|
|
|
mozilla::TimeStamp
|
|
nsHttpTransaction::GetResponseStart()
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
return mTimings.responseStart;
|
|
}
|
|
|
|
mozilla::TimeStamp
|
|
nsHttpTransaction::GetResponseEnd()
|
|
{
|
|
mozilla::MutexAutoLock lock(mLock);
|
|
return mTimings.responseEnd;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// nsHttpTransaction deletion event
|
|
//-----------------------------------------------------------------------------
|
|
|
|
class DeleteHttpTransaction : public Runnable {
|
|
public:
|
|
explicit DeleteHttpTransaction(nsHttpTransaction* trans)
|
|
: Runnable("net::DeleteHttpTransaction")
|
|
, mTrans(trans)
|
|
{
|
|
}
|
|
|
|
NS_IMETHOD Run() override
|
|
{
|
|
delete mTrans;
|
|
return NS_OK;
|
|
}
|
|
private:
|
|
nsHttpTransaction *mTrans;
|
|
};
|
|
|
|
void
|
|
nsHttpTransaction::DeleteSelfOnConsumerThread()
|
|
{
|
|
LOG(("nsHttpTransaction::DeleteSelfOnConsumerThread [this=%p]\n", this));
|
|
|
|
bool val;
|
|
if (!mConsumerTarget ||
|
|
(NS_SUCCEEDED(mConsumerTarget->IsOnCurrentThread(&val)) && val)) {
|
|
delete this;
|
|
} else {
|
|
LOG(("proxying delete to consumer thread...\n"));
|
|
nsCOMPtr<nsIRunnable> event = new DeleteHttpTransaction(this);
|
|
if (NS_FAILED(mConsumerTarget->Dispatch(event, NS_DISPATCH_NORMAL)))
|
|
NS_WARNING("failed to dispatch nsHttpDeleteTransaction event");
|
|
}
|
|
}
|
|
|
|
bool
|
|
nsHttpTransaction::TryToRunPacedRequest()
|
|
{
|
|
if (mSubmittedRatePacing)
|
|
return mPassedRatePacing;
|
|
|
|
mSubmittedRatePacing = true;
|
|
mSynchronousRatePaceRequest = true;
|
|
Unused << gHttpHandler->SubmitPacedRequest(this, getter_AddRefs(mTokenBucketCancel));
|
|
mSynchronousRatePaceRequest = false;
|
|
return mPassedRatePacing;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::OnTokenBucketAdmitted()
|
|
{
|
|
mPassedRatePacing = true;
|
|
mTokenBucketCancel = nullptr;
|
|
|
|
if (!mSynchronousRatePaceRequest) {
|
|
nsresult rv = gHttpHandler->ConnMgr()->ProcessPendingQ(mConnInfo);
|
|
if (NS_FAILED(rv)) {
|
|
LOG(("nsHttpTransaction::OnTokenBucketAdmitted\n"
|
|
" failed to process pending queue\n"));
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::CancelPacing(nsresult reason)
|
|
{
|
|
if (mTokenBucketCancel) {
|
|
mTokenBucketCancel->Cancel(reason);
|
|
mTokenBucketCancel = nullptr;
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// nsHttpTransaction::nsISupports
|
|
//-----------------------------------------------------------------------------
|
|
|
|
NS_IMPL_ADDREF(nsHttpTransaction)
|
|
|
|
NS_IMETHODIMP_(MozExternalRefCountType)
|
|
nsHttpTransaction::Release()
|
|
{
|
|
nsrefcnt count;
|
|
MOZ_ASSERT(0 != mRefCnt, "dup release");
|
|
count = --mRefCnt;
|
|
NS_LOG_RELEASE(this, count, "nsHttpTransaction");
|
|
if (0 == count) {
|
|
mRefCnt = 1; /* stablize */
|
|
// it is essential that the transaction be destroyed on the consumer
|
|
// thread (we could be holding the last reference to our consumer).
|
|
DeleteSelfOnConsumerThread();
|
|
return 0;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
NS_IMPL_QUERY_INTERFACE(nsHttpTransaction,
|
|
nsIInputStreamCallback,
|
|
nsIOutputStreamCallback)
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// nsHttpTransaction::nsIInputStreamCallback
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// called on the socket thread
|
|
NS_IMETHODIMP
|
|
nsHttpTransaction::OnInputStreamReady(nsIAsyncInputStream *out)
|
|
{
|
|
MOZ_ASSERT(OnSocketThread(), "not on socket thread");
|
|
if (mConnection) {
|
|
mConnection->TransactionHasDataToWrite(this);
|
|
nsresult rv = mConnection->ResumeSend();
|
|
if (NS_FAILED(rv))
|
|
NS_ERROR("ResumeSend failed");
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// nsHttpTransaction::nsIOutputStreamCallback
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// called on the socket thread
|
|
NS_IMETHODIMP
|
|
nsHttpTransaction::OnOutputStreamReady(nsIAsyncOutputStream *out)
|
|
{
|
|
MOZ_ASSERT(OnSocketThread(), "not on socket thread");
|
|
mWaitingOnPipeOut = false;
|
|
if (mConnection) {
|
|
mConnection->TransactionHasDataToRecv(this);
|
|
nsresult rv = mConnection->ResumeRecv();
|
|
if (NS_FAILED(rv))
|
|
NS_ERROR("ResumeRecv failed");
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::GetNetworkAddresses(NetAddr &self, NetAddr &peer)
|
|
{
|
|
MutexAutoLock lock(mLock);
|
|
self = mSelfAddr;
|
|
peer = mPeerAddr;
|
|
}
|
|
|
|
bool
|
|
nsHttpTransaction::CanDo0RTT()
|
|
{
|
|
if (mRequestHead->IsSafeMethod() &&
|
|
!mDoNotTryEarlyData &&
|
|
(!mConnection ||
|
|
!mConnection->IsProxyConnectInProgress())) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
nsHttpTransaction::Do0RTT()
|
|
{
|
|
if (mRequestHead->IsSafeMethod() &&
|
|
!mDoNotTryEarlyData &&
|
|
(!mConnection ||
|
|
!mConnection->IsProxyConnectInProgress())) {
|
|
m0RTTInProgress = true;
|
|
}
|
|
return m0RTTInProgress;
|
|
}
|
|
|
|
nsresult
|
|
nsHttpTransaction::Finish0RTT(bool aRestart, bool aAlpnChanged /* ignored */)
|
|
{
|
|
LOG(("nsHttpTransaction::Finish0RTT %p %d %d\n", this, aRestart, aAlpnChanged));
|
|
MOZ_ASSERT(m0RTTInProgress);
|
|
m0RTTInProgress = false;
|
|
if (!aRestart && (mEarlyDataDisposition == EARLY_SENT)) {
|
|
// note that if this is invoked by a 3 param version of finish0rtt this
|
|
// disposition might be reverted
|
|
mEarlyDataDisposition = EARLY_ACCEPTED;
|
|
}
|
|
if (aRestart) {
|
|
// Reset request headers to be sent again.
|
|
nsCOMPtr<nsISeekableStream> seekable =
|
|
do_QueryInterface(mRequestStream);
|
|
if (seekable) {
|
|
seekable->Seek(nsISeekableStream::NS_SEEK_SET, 0);
|
|
} else {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
} else if (!mConnected) {
|
|
// this is code that was skipped in ::ReadSegments while in 0RTT
|
|
mConnected = true;
|
|
mConnection->GetSecurityInfo(getter_AddRefs(mSecurityInfo));
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsHttpTransaction::RestartOnFastOpenError()
|
|
{
|
|
// This will happen on connection error during Fast Open or if connect
|
|
// during Fast Open takes too long. So we should not have received any
|
|
// data!
|
|
MOZ_ASSERT(!mReceivedData);
|
|
MOZ_ASSERT(OnSocketThread(), "not on socket thread");
|
|
|
|
LOG(("nsHttpTransaction::RestartOnFastOpenError - restarting transaction "
|
|
"%p\n", this));
|
|
|
|
// rewind streams in case we already wrote out the request
|
|
nsCOMPtr<nsISeekableStream> seekable = do_QueryInterface(mRequestStream);
|
|
if (seekable)
|
|
seekable->Seek(nsISeekableStream::NS_SEEK_SET, 0);
|
|
// clear old connection state...
|
|
mSecurityInfo = nullptr;
|
|
|
|
if (!mConnInfo->GetRoutedHost().IsEmpty()) {
|
|
MutexAutoLock lock(*nsHttp::GetLock());
|
|
RefPtr<nsHttpConnectionInfo> ci;
|
|
mConnInfo->CloneAsDirectRoute(getter_AddRefs(ci));
|
|
mConnInfo = ci;
|
|
}
|
|
mEarlyDataDisposition = EARLY_NONE;
|
|
m0RTTInProgress = false;
|
|
mFastOpenStatus = TFO_FAILED;
|
|
mTimings = TimingStruct();
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::SetFastOpenStatus(uint8_t aStatus)
|
|
{
|
|
LOG(("nsHttpTransaction::SetFastOpenStatus %d [this=%p]\n",
|
|
aStatus, this));
|
|
mFastOpenStatus = aStatus;
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::Refused0RTT()
|
|
{
|
|
LOG(("nsHttpTransaction::Refused0RTT %p\n", this));
|
|
if (mEarlyDataDisposition == EARLY_ACCEPTED) {
|
|
mEarlyDataDisposition = EARLY_SENT; // undo accepted state
|
|
}
|
|
}
|
|
|
|
void
|
|
nsHttpTransaction::SetHttpTrailers(nsCString &aTrailers)
|
|
{
|
|
LOG(("nsHttpTransaction::SetHttpTrailers %p", this));
|
|
LOG(("[\n %s\n]", aTrailers.BeginReading()));
|
|
if (!mForTakeResponseTrailers) {
|
|
mForTakeResponseTrailers = new nsHttpHeaderArray();
|
|
}
|
|
|
|
int32_t cur = 0;
|
|
int32_t len = aTrailers.Length();
|
|
while (cur < len) {
|
|
int32_t newline = aTrailers.FindCharInSet("\n", cur);
|
|
if (newline == -1) {
|
|
newline = len;
|
|
}
|
|
|
|
int32_t end = aTrailers[newline - 1] == '\r' ? newline - 1 : newline;
|
|
nsDependentCSubstring line(aTrailers, cur, end);
|
|
nsHttpAtom hdr = {nullptr};
|
|
nsAutoCString hdrNameOriginal;
|
|
nsAutoCString val;
|
|
if (NS_SUCCEEDED(mForTakeResponseTrailers->ParseHeaderLine(line, &hdr, &hdrNameOriginal, &val))) {
|
|
if (hdr == nsHttp::Server_Timing) {
|
|
Unused << mForTakeResponseTrailers->SetHeaderFromNet(hdr, hdrNameOriginal, val, true);
|
|
}
|
|
}
|
|
|
|
cur = newline + 1;
|
|
}
|
|
|
|
if (mForTakeResponseTrailers->Count() == 0) {
|
|
// Didn't find a Server-Timing header, so get rid of this.
|
|
mForTakeResponseTrailers = nullptr;
|
|
}
|
|
}
|
|
|
|
} // namespace net
|
|
} // namespace mozilla
|