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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /netwerk/protocol/http/nsHttpConnection.cpp
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'netwerk/protocol/http/nsHttpConnection.cpp')
-rw-r--r--netwerk/protocol/http/nsHttpConnection.cpp2609
1 files changed, 2609 insertions, 0 deletions
diff --git a/netwerk/protocol/http/nsHttpConnection.cpp b/netwerk/protocol/http/nsHttpConnection.cpp
new file mode 100644
index 0000000000..023c06f3f3
--- /dev/null
+++ b/netwerk/protocol/http/nsHttpConnection.cpp
@@ -0,0 +1,2609 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=4 sw=2 sts=2 et cin: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// HttpLog.h should generally be included first
+#include "HttpLog.h"
+
+// Log on level :5, instead of default :4.
+#undef LOG
+#define LOG(args) LOG5(args)
+#undef LOG_ENABLED
+#define LOG_ENABLED() LOG5_ENABLED()
+
+#include "ASpdySession.h"
+#include "NSSErrorsService.h"
+#include "TLSTransportLayer.h"
+#include "mozilla/ChaosMode.h"
+#include "mozilla/StaticPrefs_network.h"
+#include "mozilla/Telemetry.h"
+#include "mozpkix/pkixnss.h"
+#include "nsCRT.h"
+#include "nsHttpConnection.h"
+#include "nsHttpHandler.h"
+#include "nsHttpRequestHead.h"
+#include "nsHttpResponseHead.h"
+#include "nsIClassOfService.h"
+#include "nsIOService.h"
+#include "nsISocketTransport.h"
+#include "nsISupportsPriority.h"
+#include "nsITLSSocketControl.h"
+#include "nsITransportSecurityInfo.h"
+#include "nsPreloadedStream.h"
+#include "nsProxyRelease.h"
+#include "nsQueryObject.h"
+#include "nsSocketTransport2.h"
+#include "nsSocketTransportService2.h"
+#include "nsStringStream.h"
+#include "sslerr.h"
+#include "sslt.h"
+
+namespace mozilla::net {
+
+enum TlsHandshakeResult : uint32_t {
+ EchConfigSuccessful = 0,
+ EchConfigFailed,
+ NoEchConfigSuccessful,
+ NoEchConfigFailed,
+};
+
+//-----------------------------------------------------------------------------
+// nsHttpConnection <public>
+//-----------------------------------------------------------------------------
+
+nsHttpConnection::nsHttpConnection() : mHttpHandler(gHttpHandler) {
+ LOG(("Creating nsHttpConnection @%p\n", this));
+
+ // the default timeout is for when this connection has not yet processed a
+ // transaction
+ static const PRIntervalTime k5Sec = PR_SecondsToInterval(5);
+ mIdleTimeout = (k5Sec < gHttpHandler->IdleTimeout())
+ ? k5Sec
+ : gHttpHandler->IdleTimeout();
+
+ mThroughCaptivePortal = gHttpHandler->GetThroughCaptivePortal();
+}
+
+nsHttpConnection::~nsHttpConnection() {
+ LOG(("Destroying nsHttpConnection @%p\n", this));
+
+ if (!mEverUsedSpdy) {
+ LOG(("nsHttpConnection %p performed %d HTTP/1.x transactions\n", this,
+ mHttp1xTransactionCount));
+ Telemetry::Accumulate(Telemetry::HTTP_REQUEST_PER_CONN,
+ mHttp1xTransactionCount);
+ nsHttpConnectionInfo* ci = nullptr;
+ if (mTransaction) {
+ ci = mTransaction->ConnectionInfo();
+ }
+ if (!ci) {
+ ci = mConnInfo;
+ }
+
+ MOZ_ASSERT(ci);
+ if (ci->GetIsTrrServiceChannel()) {
+ Telemetry::Accumulate(Telemetry::DNS_TRR_REQUEST_PER_CONN,
+ mHttp1xTransactionCount);
+ }
+ }
+
+ if (mTotalBytesRead) {
+ uint32_t totalKBRead = static_cast<uint32_t>(mTotalBytesRead >> 10);
+ LOG(("nsHttpConnection %p read %dkb on connection spdy=%d\n", this,
+ totalKBRead, mEverUsedSpdy));
+ Telemetry::Accumulate(mEverUsedSpdy ? Telemetry::SPDY_KBREAD_PER_CONN2
+ : Telemetry::HTTP_KBREAD_PER_CONN2,
+ totalKBRead);
+ }
+
+ if (mThroughCaptivePortal) {
+ if (mTotalBytesRead || mTotalBytesWritten) {
+ auto total =
+ Clamp<uint32_t>((mTotalBytesRead >> 10) + (mTotalBytesWritten >> 10),
+ 0, std::numeric_limits<uint32_t>::max());
+ Telemetry::ScalarAdd(
+ Telemetry::ScalarID::NETWORKING_DATA_TRANSFERRED_CAPTIVE_PORTAL,
+ total);
+ }
+
+ Telemetry::ScalarAdd(
+ Telemetry::ScalarID::NETWORKING_HTTP_CONNECTIONS_CAPTIVE_PORTAL, 1);
+ }
+
+ if (mForceSendTimer) {
+ mForceSendTimer->Cancel();
+ mForceSendTimer = nullptr;
+ }
+
+ auto ReleaseSocketTransport =
+ [socketTransport(std::move(mSocketTransport))]() mutable {
+ socketTransport = nullptr;
+ };
+ if (OnSocketThread()) {
+ ReleaseSocketTransport();
+ } else {
+ gSocketTransportService->Dispatch(NS_NewRunnableFunction(
+ "nsHttpConnection::~nsHttpConnection", ReleaseSocketTransport));
+ }
+}
+
+nsresult nsHttpConnection::Init(
+ nsHttpConnectionInfo* info, uint16_t maxHangTime,
+ nsISocketTransport* transport, nsIAsyncInputStream* instream,
+ nsIAsyncOutputStream* outstream, bool connectedTransport, nsresult status,
+ nsIInterfaceRequestor* callbacks, PRIntervalTime rtt, bool forWebSocket) {
+ LOG1(("nsHttpConnection::Init this=%p sockettransport=%p forWebSocket=%d",
+ this, transport, forWebSocket));
+ NS_ENSURE_ARG_POINTER(info);
+ NS_ENSURE_TRUE(!mConnInfo, NS_ERROR_ALREADY_INITIALIZED);
+ MOZ_ASSERT(NS_SUCCEEDED(status) || !connectedTransport);
+
+ mConnectedTransport = connectedTransport;
+ mConnInfo = info;
+ MOZ_ASSERT(mConnInfo);
+
+ mLastWriteTime = mLastReadTime = PR_IntervalNow();
+ mRtt = rtt;
+ mMaxHangTime = PR_SecondsToInterval(maxHangTime);
+
+ mSocketTransport = transport;
+ mSocketIn = instream;
+ mSocketOut = outstream;
+ mForWebSocket = forWebSocket;
+
+ // See explanation for non-strictness of this operation in
+ // SetSecurityCallbacks.
+ mCallbacks = new nsMainThreadPtrHolder<nsIInterfaceRequestor>(
+ "nsHttpConnection::mCallbacks", callbacks, false);
+
+ mErrorBeforeConnect = status;
+ if (NS_SUCCEEDED(mErrorBeforeConnect)) {
+ mSocketTransport->SetEventSink(this, nullptr);
+ mSocketTransport->SetSecurityCallbacks(this);
+ ChangeConnectionState(ConnectionState::INITED);
+ } else {
+ SetCloseReason(ToCloseReason(mErrorBeforeConnect));
+ }
+
+ mTlsHandshaker = new TlsHandshaker(mConnInfo, this);
+ return NS_OK;
+}
+
+void nsHttpConnection::ChangeState(HttpConnectionState newState) {
+ LOG(("nsHttpConnection::ChangeState %d -> %d [this=%p]", mState, newState,
+ this));
+ mState = newState;
+}
+
+nsresult nsHttpConnection::TryTakeSubTransactions(
+ nsTArray<RefPtr<nsAHttpTransaction> >& list) {
+ nsresult rv = mTransaction->TakeSubTransactions(list);
+
+ if (rv == NS_ERROR_ALREADY_OPENED) {
+ // Has the interface for TakeSubTransactions() changed?
+ LOG(
+ ("TakeSubTransactions somehow called after "
+ "nsAHttpTransaction began processing\n"));
+ MOZ_ASSERT(false,
+ "TakeSubTransactions somehow called after "
+ "nsAHttpTransaction began processing");
+ mTransaction->Close(NS_ERROR_ABORT);
+ return rv;
+ }
+
+ if (NS_FAILED(rv) && rv != NS_ERROR_NOT_IMPLEMENTED) {
+ // Has the interface for TakeSubTransactions() changed?
+ LOG(("unexpected rv from nnsAHttpTransaction::TakeSubTransactions()"));
+ MOZ_ASSERT(false,
+ "unexpected result from "
+ "nsAHttpTransaction::TakeSubTransactions()");
+ mTransaction->Close(NS_ERROR_ABORT);
+ return rv;
+ }
+
+ return rv;
+}
+
+void nsHttpConnection::ResetTransaction(RefPtr<nsAHttpTransaction>&& trans) {
+ MOZ_ASSERT(trans);
+ mSpdySession->SetConnection(trans->Connection());
+ trans->SetConnection(nullptr);
+ trans->DoNotRemoveAltSvc();
+ trans->Close(NS_ERROR_NET_RESET);
+}
+
+nsresult nsHttpConnection::MoveTransactionsToSpdy(
+ nsresult status, nsTArray<RefPtr<nsAHttpTransaction> >& list) {
+ if (NS_FAILED(status)) { // includes NS_ERROR_NOT_IMPLEMENTED
+ MOZ_ASSERT(list.IsEmpty(), "sub transaction list not empty");
+
+ // If this transaction is used to drive websocket, we reset it to put it in
+ // the pending queue. Once we know if the server supports websocket or not,
+ // the pending queue will be processed.
+ nsHttpTransaction* trans = mTransaction->QueryHttpTransaction();
+ if (trans && trans->IsWebsocketUpgrade()) {
+ LOG(("nsHttpConnection resetting transaction for websocket upgrade"));
+ // websocket upgrade needs NonSticky for transaction reset
+ mTransaction->MakeNonSticky();
+ ResetTransaction(std::move(mTransaction));
+ mTransaction = nullptr;
+ return NS_OK;
+ }
+
+ // This is ok - treat mTransaction as a single real request.
+ // Wrap the old http transaction into the new spdy session
+ // as the first stream.
+ LOG(
+ ("nsHttpConnection::MoveTransactionsToSpdy moves single transaction %p "
+ "into SpdySession %p\n",
+ mTransaction.get(), mSpdySession.get()));
+ nsresult rv = AddTransaction(mTransaction, mPriority);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ } else {
+ int32_t count = list.Length();
+
+ LOG(
+ ("nsHttpConnection::MoveTransactionsToSpdy moving transaction list "
+ "len=%d "
+ "into SpdySession %p\n",
+ count, mSpdySession.get()));
+
+ if (!count) {
+ mTransaction->Close(NS_ERROR_ABORT);
+ return NS_ERROR_ABORT;
+ }
+
+ for (int32_t index = 0; index < count; ++index) {
+ RefPtr<nsAHttpTransaction> transaction = list[index];
+ nsHttpTransaction* trans = transaction->QueryHttpTransaction();
+ if (trans && trans->IsWebsocketUpgrade()) {
+ LOG(("nsHttpConnection resetting a transaction for websocket upgrade"));
+ // websocket upgrade needs NonSticky for transaction reset
+ transaction->MakeNonSticky();
+ ResetTransaction(std::move(transaction));
+ transaction = nullptr;
+ continue;
+ }
+ nsresult rv = AddTransaction(list[index], mPriority);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ }
+ }
+
+ return NS_OK;
+}
+
+void nsHttpConnection::Start0RTTSpdy(SpdyVersion spdyVersion) {
+ LOG(("nsHttpConnection::Start0RTTSpdy [this=%p]", this));
+
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+
+ mDid0RTTSpdy = true;
+ mUsingSpdyVersion = spdyVersion;
+ mEverUsedSpdy = true;
+ mSpdySession =
+ ASpdySession::NewSpdySession(spdyVersion, mSocketTransport, true);
+
+ if (mTransaction) {
+ nsTArray<RefPtr<nsAHttpTransaction> > list;
+ nsresult rv = TryTakeSubTransactions(list);
+ if (NS_FAILED(rv) && rv != NS_ERROR_NOT_IMPLEMENTED) {
+ LOG(
+ ("nsHttpConnection::Start0RTTSpdy [this=%p] failed taking "
+ "subtransactions rv=%" PRIx32,
+ this, static_cast<uint32_t>(rv)));
+ return;
+ }
+
+ rv = MoveTransactionsToSpdy(rv, list);
+ if (NS_FAILED(rv)) {
+ LOG(
+ ("nsHttpConnection::Start0RTTSpdy [this=%p] failed moving "
+ "transactions rv=%" PRIx32,
+ this, static_cast<uint32_t>(rv)));
+ return;
+ }
+ }
+
+ mTransaction = mSpdySession;
+}
+
+void nsHttpConnection::StartSpdy(nsITLSSocketControl* sslControl,
+ SpdyVersion spdyVersion) {
+ LOG(("nsHttpConnection::StartSpdy [this=%p, mDid0RTTSpdy=%d]\n", this,
+ mDid0RTTSpdy));
+
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+ MOZ_ASSERT(!mSpdySession || mDid0RTTSpdy);
+
+ mUsingSpdyVersion = spdyVersion;
+ mEverUsedSpdy = true;
+ if (sslControl) {
+ sslControl->SetDenyClientCert(true);
+ }
+
+ if (!mDid0RTTSpdy) {
+ mSpdySession =
+ ASpdySession::NewSpdySession(spdyVersion, mSocketTransport, false);
+ }
+
+ if (!mReportedSpdy) {
+ mReportedSpdy = true;
+ // See bug 1797729.
+ // It's possible that we already have a HTTP/3 connection that can be
+ // coleased with this connection. We should avoid coalescing with the
+ // existing HTTP/3 connection if the transaction doesn't allow to use
+ // HTTP/3.
+ gHttpHandler->ConnMgr()->ReportSpdyConnection(this, true,
+ mTransactionDisallowHttp3);
+ }
+
+ // Setting the connection as reused allows some transactions that fail
+ // with NS_ERROR_NET_RESET to be restarted and SPDY uses that code
+ // to handle clean rejections (such as those that arrived after
+ // a server goaway was generated).
+ mIsReused = true;
+
+ // If mTransaction is a muxed object it might represent
+ // several requests. If so, we need to unpack that and
+ // pack them all into a new spdy session.
+
+ nsTArray<RefPtr<nsAHttpTransaction> > list;
+ nsresult status = NS_OK;
+ if (!mDid0RTTSpdy && mTransaction) {
+ status = TryTakeSubTransactions(list);
+
+ if (NS_FAILED(status) && status != NS_ERROR_NOT_IMPLEMENTED) {
+ return;
+ }
+ }
+
+ if (NeedSpdyTunnel()) {
+ LOG3(
+ ("nsHttpConnection::StartSpdy %p Connecting To a HTTP/2 "
+ "Proxy and Need Connect",
+ this));
+ SetTunnelSetupDone();
+ }
+
+ nsresult rv = NS_OK;
+ bool spdyProxy = mConnInfo->UsingHttpsProxy() && mConnInfo->UsingConnect() &&
+ !mHasTLSTransportLayer;
+ if (spdyProxy) {
+ RefPtr<nsHttpConnectionInfo> wildCardProxyCi;
+ rv = mConnInfo->CreateWildCard(getter_AddRefs(wildCardProxyCi));
+ MOZ_ASSERT(NS_SUCCEEDED(rv));
+ gHttpHandler->ConnMgr()->MoveToWildCardConnEntry(mConnInfo, wildCardProxyCi,
+ this);
+ mConnInfo = wildCardProxyCi;
+ MOZ_ASSERT(mConnInfo);
+ }
+
+ if (!mDid0RTTSpdy && mTransaction) {
+ if (spdyProxy) {
+ if (NS_FAILED(status)) {
+ // proxy upgrade needs Restartable for transaction reset
+ // note that using NonSticky here won't work because it breaks
+ // netwerk/test/unit/test_websocket_server.js - h1 ws with h2 proxy
+ mTransaction->MakeRestartable();
+ ResetTransaction(std::move(mTransaction));
+ mTransaction = nullptr;
+ } else {
+ for (auto trans : list) {
+ if (!mSpdySession->Connection()) {
+ mSpdySession->SetConnection(trans->Connection());
+ }
+ trans->SetConnection(nullptr);
+ trans->DoNotRemoveAltSvc();
+ trans->Close(NS_ERROR_NET_RESET);
+ }
+ }
+ } else {
+ rv = MoveTransactionsToSpdy(status, list);
+ if (NS_FAILED(rv)) {
+ return;
+ }
+ }
+ }
+
+ // Disable TCP Keepalives - use SPDY ping instead.
+ rv = DisableTCPKeepalives();
+ if (NS_FAILED(rv)) {
+ LOG(
+ ("nsHttpConnection::StartSpdy [%p] DisableTCPKeepalives failed "
+ "rv[0x%" PRIx32 "]",
+ this, static_cast<uint32_t>(rv)));
+ }
+
+ mIdleTimeout = gHttpHandler->SpdyTimeout() * mDefaultTimeoutFactor;
+
+ mTransaction = mSpdySession;
+
+ if (mDontReuse) {
+ mSpdySession->DontReuse();
+ }
+}
+
+void nsHttpConnection::PostProcessNPNSetup(bool handshakeSucceeded,
+ bool hasSecurityInfo,
+ bool earlyDataUsed) {
+ if (mTransaction) {
+ mTransaction->OnTransportStatus(mSocketTransport,
+ NS_NET_STATUS_TLS_HANDSHAKE_ENDED, 0);
+ }
+
+ // this is happening after the bootstrap was originally written to. so update
+ // it.
+ if (mTransaction && mTransaction->QueryNullTransaction() &&
+ (mBootstrappedTimings.secureConnectionStart.IsNull() ||
+ mBootstrappedTimings.tcpConnectEnd.IsNull())) {
+ mBootstrappedTimings.secureConnectionStart =
+ mTransaction->QueryNullTransaction()->GetSecureConnectionStart();
+ mBootstrappedTimings.tcpConnectEnd =
+ mTransaction->QueryNullTransaction()->GetTcpConnectEnd();
+ }
+
+ if (hasSecurityInfo) {
+ mBootstrappedTimings.connectEnd = TimeStamp::Now();
+ }
+
+ if (earlyDataUsed) {
+ // Didn't get 0RTT OK, back out of the "attempting 0RTT" state
+ LOG(("nsHttpConnection::PostProcessNPNSetup [this=%p] 0rtt failed", this));
+ if (mTransaction && NS_FAILED(mTransaction->Finish0RTT(true, true))) {
+ mTransaction->Close(NS_ERROR_NET_RESET);
+ }
+ mContentBytesWritten0RTT = 0;
+ if (mDid0RTTSpdy) {
+ Reset0RttForSpdy();
+ }
+ }
+
+ if (hasSecurityInfo) {
+ // Telemetry for tls failure rate with and without esni;
+ bool echConfigUsed = false;
+ mSocketTransport->GetEchConfigUsed(&echConfigUsed);
+ TlsHandshakeResult result =
+ echConfigUsed
+ ? (handshakeSucceeded ? TlsHandshakeResult::EchConfigSuccessful
+ : TlsHandshakeResult::EchConfigFailed)
+ : (handshakeSucceeded ? TlsHandshakeResult::NoEchConfigSuccessful
+ : TlsHandshakeResult::NoEchConfigFailed);
+ Telemetry::Accumulate(Telemetry::ECHCONFIG_SUCCESS_RATE, result);
+ }
+}
+
+void nsHttpConnection::Reset0RttForSpdy() {
+ // Reset the work done by Start0RTTSpdy
+ mUsingSpdyVersion = SpdyVersion::NONE;
+ mTransaction = nullptr;
+ mSpdySession = nullptr;
+ // We have to reset this here, just in case we end up starting spdy again,
+ // so it can actually do everything it needs to do.
+ mDid0RTTSpdy = false;
+}
+
+// called on the socket thread
+nsresult nsHttpConnection::Activate(nsAHttpTransaction* trans, uint32_t caps,
+ int32_t pri) {
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+ LOG1(("nsHttpConnection::Activate [this=%p trans=%p caps=%x]\n", this, trans,
+ caps));
+
+ if (!mExperienced && !trans->IsNullTransaction()) {
+ mHasFirstHttpTransaction = true;
+ if (mTlsHandshaker->NPNComplete()) {
+ mExperienced = true;
+ }
+ if (mBootstrappedTimingsSet) {
+ mBootstrappedTimingsSet = false;
+ nsHttpTransaction* hTrans = trans->QueryHttpTransaction();
+ if (hTrans) {
+ hTrans->BootstrapTimings(mBootstrappedTimings);
+ SetUrgentStartPreferred(hTrans->GetClassOfService().Flags() &
+ nsIClassOfService::UrgentStart);
+ }
+ }
+ mBootstrappedTimings = TimingStruct();
+ }
+
+ if (caps & NS_HTTP_LARGE_KEEPALIVE) {
+ mDefaultTimeoutFactor = StaticPrefs::network_http_largeKeepaliveFactor();
+ }
+
+ mTransactionCaps = caps;
+ mPriority = pri;
+
+ if (mHasFirstHttpTransaction && mExperienced) {
+ mHasFirstHttpTransaction = false;
+ mExperienceState |= ConnectionExperienceState::Experienced;
+ }
+
+ if (mTransaction && (mUsingSpdyVersion != SpdyVersion::NONE)) {
+ return AddTransaction(trans, pri);
+ }
+
+ NS_ENSURE_ARG_POINTER(trans);
+ NS_ENSURE_TRUE(!mTransaction, NS_ERROR_IN_PROGRESS);
+
+ // reset the read timers to wash away any idle time
+ mLastWriteTime = mLastReadTime = PR_IntervalNow();
+
+ // Connection failures are Activated() just like regular transacions.
+ // If we don't have a confirmation of a connected socket then test it
+ // with a write() to get relevant error code.
+ if (NS_FAILED(mErrorBeforeConnect)) {
+ mSocketOutCondition = mErrorBeforeConnect;
+ mTransaction = trans;
+ CloseTransaction(mTransaction, mSocketOutCondition);
+ return mSocketOutCondition;
+ }
+
+ if (!mConnectedTransport) {
+ uint32_t count;
+ mSocketOutCondition = NS_ERROR_FAILURE;
+ if (mSocketOut) {
+ mSocketOutCondition = mSocketOut->Write("", 0, &count);
+ }
+ if (NS_FAILED(mSocketOutCondition) &&
+ mSocketOutCondition != NS_BASE_STREAM_WOULD_BLOCK) {
+ LOG(("nsHttpConnection::Activate [this=%p] Bad Socket %" PRIx32 "\n",
+ this, static_cast<uint32_t>(mSocketOutCondition)));
+ mSocketOut->AsyncWait(nullptr, 0, 0, nullptr);
+ mTransaction = trans;
+ CloseTransaction(mTransaction, mSocketOutCondition);
+ return mSocketOutCondition;
+ }
+ }
+
+ // Update security callbacks
+ nsCOMPtr<nsIInterfaceRequestor> callbacks;
+ trans->GetSecurityCallbacks(getter_AddRefs(callbacks));
+ SetSecurityCallbacks(callbacks);
+ mTlsHandshaker->SetupSSL(mInSpdyTunnel, mForcePlainText);
+ if (mTlsHandshaker->NPNComplete()) {
+ // For non-HTTPS connection, change the state to TRANSFERING directly.
+ ChangeConnectionState(ConnectionState::TRANSFERING);
+ } else {
+ ChangeConnectionState(ConnectionState::TLS_HANDSHAKING);
+ }
+
+ // take ownership of the transaction
+ mTransaction = trans;
+
+ nsCOMPtr<nsITLSSocketControl> tlsSocketControl;
+ if (NS_SUCCEEDED(mSocketTransport->GetTlsSocketControl(
+ getter_AddRefs(tlsSocketControl))) &&
+ tlsSocketControl) {
+ tlsSocketControl->SetBrowserId(mTransaction->BrowserId());
+ }
+
+ MOZ_ASSERT(!mIdleMonitoring, "Activating a connection with an Idle Monitor");
+ mIdleMonitoring = false;
+
+ // set mKeepAlive according to what will be requested
+ mKeepAliveMask = mKeepAlive = (caps & NS_HTTP_ALLOW_KEEPALIVE);
+
+ mTransactionDisallowHttp3 |= (caps & NS_HTTP_DISALLOW_HTTP3);
+
+ // need to handle HTTP CONNECT tunnels if this is the first time if
+ // we are tunneling through a proxy
+ nsresult rv = CheckTunnelIsNeeded();
+ if (NS_FAILED(rv)) goto failed_activation;
+
+ // Clear the per activation counter
+ mCurrentBytesRead = 0;
+
+ // The overflow state is not needed between activations
+ mInputOverflow = nullptr;
+
+ mResponseTimeoutEnabled = gHttpHandler->ResponseTimeoutEnabled() &&
+ mTransaction->ResponseTimeout() > 0 &&
+ mTransaction->ResponseTimeoutEnabled();
+
+ rv = StartShortLivedTCPKeepalives();
+ if (NS_FAILED(rv)) {
+ LOG(
+ ("nsHttpConnection::Activate [%p] "
+ "StartShortLivedTCPKeepalives failed rv[0x%" PRIx32 "]",
+ this, static_cast<uint32_t>(rv)));
+ }
+
+ trans->OnActivated();
+
+ rv = OnOutputStreamReady(mSocketOut);
+
+ if (NS_SUCCEEDED(rv) && mContinueHandshakeDone) {
+ mContinueHandshakeDone();
+ }
+ mContinueHandshakeDone = nullptr;
+
+failed_activation:
+ if (NS_FAILED(rv)) {
+ mTransaction = nullptr;
+ }
+
+ return rv;
+}
+
+nsresult nsHttpConnection::AddTransaction(nsAHttpTransaction* httpTransaction,
+ int32_t priority) {
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+ MOZ_ASSERT(mSpdySession && (mUsingSpdyVersion != SpdyVersion::NONE),
+ "AddTransaction to live http connection without spdy/quic");
+
+ // If this is a wild card nshttpconnection (i.e. a spdy proxy) then
+ // it is important to start the stream using the specific connection
+ // info of the transaction to ensure it is routed on the right tunnel
+
+ nsHttpConnectionInfo* transCI = httpTransaction->ConnectionInfo();
+
+ bool needTunnel = transCI->UsingHttpsProxy();
+ needTunnel = needTunnel && !mHasTLSTransportLayer;
+ needTunnel = needTunnel && transCI->UsingConnect();
+ needTunnel = needTunnel && httpTransaction->QueryHttpTransaction();
+
+ // Let the transaction know that the tunnel is already established and we
+ // don't need to setup the tunnel again.
+ if (transCI->UsingConnect() && mEverUsedSpdy && mHasTLSTransportLayer) {
+ httpTransaction->OnProxyConnectComplete(200);
+ }
+
+ LOG(("nsHttpConnection::AddTransaction [this=%p] for %s%s", this,
+ mSpdySession ? "SPDY" : "QUIC", needTunnel ? " over tunnel" : ""));
+
+ if (mSpdySession) {
+ if (!mSpdySession->AddStream(httpTransaction, priority, mCallbacks)) {
+ MOZ_ASSERT(false); // this cannot happen!
+ httpTransaction->Close(NS_ERROR_ABORT);
+ return NS_ERROR_FAILURE;
+ }
+ }
+
+ Unused << ResumeSend();
+ return NS_OK;
+}
+
+nsresult nsHttpConnection::CreateTunnelStream(
+ nsAHttpTransaction* httpTransaction, nsHttpConnection** aHttpConnection,
+ bool aIsWebSocket) {
+ if (!mSpdySession) {
+ return NS_ERROR_UNEXPECTED;
+ }
+
+ RefPtr<nsHttpConnection> conn = mSpdySession->CreateTunnelStream(
+ httpTransaction, mCallbacks, mRtt, aIsWebSocket);
+ // We need to store the refrence of the Http2Session in the tunneled
+ // connection, so when nsHttpConnection::DontReuse is called the Http2Session
+ // can't be reused.
+ if (aIsWebSocket) {
+ LOG(
+ ("nsHttpConnection::CreateTunnelStream %p Set h2 session %p to "
+ "tunneled conn %p",
+ this, mSpdySession.get(), conn.get()));
+ conn->mWebSocketHttp2Session = mSpdySession;
+ }
+ conn.forget(aHttpConnection);
+ return NS_OK;
+}
+
+void nsHttpConnection::Close(nsresult reason, bool aIsShutdown) {
+ LOG(("nsHttpConnection::Close [this=%p reason=%" PRIx32
+ " mExperienceState=%x]\n",
+ this, static_cast<uint32_t>(reason),
+ static_cast<uint32_t>(mExperienceState)));
+
+ if (mConnectionState != ConnectionState::CLOSED) {
+ RecordConnectionCloseTelemetry(reason);
+ ChangeConnectionState(ConnectionState::CLOSED);
+ }
+
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+ mTlsHandshaker->NotifyClose();
+ mContinueHandshakeDone = nullptr;
+ mWebSocketHttp2Session = nullptr;
+ // Ensure TCP keepalive timer is stopped.
+ if (mTCPKeepaliveTransitionTimer) {
+ mTCPKeepaliveTransitionTimer->Cancel();
+ mTCPKeepaliveTransitionTimer = nullptr;
+ }
+ if (mForceSendTimer) {
+ mForceSendTimer->Cancel();
+ mForceSendTimer = nullptr;
+ }
+
+ if (!mTrafficCategory.IsEmpty()) {
+ HttpTrafficAnalyzer* hta = gHttpHandler->GetHttpTrafficAnalyzer();
+ if (hta) {
+ hta->IncrementHttpConnection(std::move(mTrafficCategory));
+ MOZ_ASSERT(mTrafficCategory.IsEmpty());
+ }
+ }
+
+ nsCOMPtr<nsITLSSocketControl> tlsSocketControl;
+ GetTLSSocketControl(getter_AddRefs(tlsSocketControl));
+ if (tlsSocketControl) {
+ tlsSocketControl->SetHandshakeCallbackListener(nullptr);
+ }
+
+ if (NS_FAILED(reason)) {
+ if (mIdleMonitoring) EndIdleMonitoring();
+
+ // The connection and security errors clear out alt-svc mappings
+ // in case any previously validated ones are now invalid
+ if (((reason == NS_ERROR_NET_RESET) ||
+ (NS_ERROR_GET_MODULE(reason) == NS_ERROR_MODULE_SECURITY)) &&
+ mConnInfo && !(mTransactionCaps & NS_HTTP_ERROR_SOFTLY)) {
+ gHttpHandler->ClearHostMapping(mConnInfo);
+ }
+ if (mTlsHandshaker->EarlyDataWasAvailable() &&
+ SecurityErrorThatMayNeedRestart(reason)) {
+ gHttpHandler->Exclude0RttTcp(mConnInfo);
+ }
+
+ if (mSocketTransport) {
+ mSocketTransport->SetEventSink(nullptr, nullptr);
+
+ // If there are bytes sitting in the input queue then read them
+ // into a junk buffer to avoid generating a tcp rst by closing a
+ // socket with data pending. TLS is a classic case of this where
+ // a Alert record might be superfulous to a clean HTTP/SPDY shutdown.
+ // Never block to do this and limit it to a small amount of data.
+ // During shutdown just be fast!
+ if (mSocketIn && !aIsShutdown && !mInSpdyTunnel) {
+ char buffer[4000];
+ uint32_t count, total = 0;
+ nsresult rv;
+ do {
+ rv = mSocketIn->Read(buffer, 4000, &count);
+ if (NS_SUCCEEDED(rv)) total += count;
+ } while (NS_SUCCEEDED(rv) && count > 0 && total < 64000);
+ LOG(("nsHttpConnection::Close drained %d bytes\n", total));
+ }
+
+ mSocketTransport->SetSecurityCallbacks(nullptr);
+ mSocketTransport->Close(reason);
+ if (mSocketOut) mSocketOut->AsyncWait(nullptr, 0, 0, nullptr);
+ }
+ mKeepAlive = false;
+ }
+}
+
+void nsHttpConnection::MarkAsDontReuse() {
+ LOG(("nsHttpConnection::MarkAsDontReuse %p\n", this));
+ mKeepAliveMask = false;
+ mKeepAlive = false;
+ mDontReuse = true;
+ mIdleTimeout = 0;
+}
+
+void nsHttpConnection::DontReuse() {
+ LOG(("nsHttpConnection::DontReuse %p spdysession=%p\n", this,
+ mSpdySession.get()));
+ MarkAsDontReuse();
+ if (mSpdySession) {
+ mSpdySession->DontReuse();
+ } else if (mWebSocketHttp2Session) {
+ LOG(("nsHttpConnection::DontReuse %p mWebSocketHttp2Session=%p\n", this,
+ mWebSocketHttp2Session.get()));
+ mWebSocketHttp2Session->DontReuse();
+ }
+}
+
+bool nsHttpConnection::TestJoinConnection(const nsACString& hostname,
+ int32_t port) {
+ if (mSpdySession && CanDirectlyActivate()) {
+ return mSpdySession->TestJoinConnection(hostname, port);
+ }
+
+ return false;
+}
+
+bool nsHttpConnection::JoinConnection(const nsACString& hostname,
+ int32_t port) {
+ if (mSpdySession && CanDirectlyActivate()) {
+ return mSpdySession->JoinConnection(hostname, port);
+ }
+
+ return false;
+}
+
+bool nsHttpConnection::CanReuse() {
+ if (mDontReuse || !mRemainingConnectionUses) {
+ return false;
+ }
+
+ if ((mTransaction ? (mTransaction->IsDone() ? 0U : 1U) : 0U) >=
+ mRemainingConnectionUses) {
+ return false;
+ }
+
+ bool canReuse;
+ if (mSpdySession) {
+ canReuse = mSpdySession->CanReuse();
+ } else {
+ canReuse = IsKeepAlive();
+ }
+
+ canReuse = canReuse && (IdleTime() < mIdleTimeout) && IsAlive();
+
+ // An idle persistent connection should not have data waiting to be read
+ // before a request is sent. Data here is likely a 408 timeout response
+ // which we would deal with later on through the restart logic, but that
+ // path is more expensive than just closing the socket now.
+
+ uint64_t dataSize;
+ if (canReuse && mSocketIn && (mUsingSpdyVersion == SpdyVersion::NONE) &&
+ mHttp1xTransactionCount &&
+ NS_SUCCEEDED(mSocketIn->Available(&dataSize)) && dataSize) {
+ LOG(
+ ("nsHttpConnection::CanReuse %p %s"
+ "Socket not reusable because read data pending (%" PRIu64 ") on it.\n",
+ this, mConnInfo->Origin(), dataSize));
+ canReuse = false;
+ }
+ return canReuse;
+}
+
+bool nsHttpConnection::CanDirectlyActivate() {
+ // return true if a new transaction can be addded to ths connection at any
+ // time through Activate(). In practice this means this is a healthy SPDY
+ // connection with room for more concurrent streams.
+
+ return UsingSpdy() && CanReuse() && mSpdySession &&
+ mSpdySession->RoomForMoreStreams();
+}
+
+PRIntervalTime nsHttpConnection::IdleTime() {
+ return mSpdySession ? mSpdySession->IdleTime()
+ : (PR_IntervalNow() - mLastReadTime);
+}
+
+// returns the number of seconds left before the allowable idle period
+// expires, or 0 if the period has already expied.
+uint32_t nsHttpConnection::TimeToLive() {
+ LOG(("nsHttpConnection::TTL: %p %s idle %d timeout %d\n", this,
+ mConnInfo->Origin(), IdleTime(), mIdleTimeout));
+
+ if (IdleTime() >= mIdleTimeout) {
+ return 0;
+ }
+
+ uint32_t timeToLive = PR_IntervalToSeconds(mIdleTimeout - IdleTime());
+
+ // a positive amount of time can be rounded to 0. Because 0 is used
+ // as the expiration signal, round all values from 0 to 1 up to 1.
+ if (!timeToLive) {
+ timeToLive = 1;
+ }
+ return timeToLive;
+}
+
+bool nsHttpConnection::IsAlive() {
+ if (!mSocketTransport || !mConnectedTransport) return false;
+
+ // SocketTransport::IsAlive can run the SSL state machine, so make sure
+ // the NPN options are set before that happens.
+ mTlsHandshaker->SetupSSL(mInSpdyTunnel, mForcePlainText);
+
+ bool alive;
+ nsresult rv = mSocketTransport->IsAlive(&alive);
+ if (NS_FAILED(rv)) alive = false;
+
+// #define TEST_RESTART_LOGIC
+#ifdef TEST_RESTART_LOGIC
+ if (!alive) {
+ LOG(("pretending socket is still alive to test restart logic\n"));
+ alive = true;
+ }
+#endif
+
+ return alive;
+}
+
+void nsHttpConnection::SetUrgentStartPreferred(bool urgent) {
+ if (mExperienced && !mUrgentStartPreferredKnown) {
+ // Set only according the first ever dispatched non-null transaction
+ mUrgentStartPreferredKnown = true;
+ mUrgentStartPreferred = urgent;
+ LOG(("nsHttpConnection::SetUrgentStartPreferred [this=%p urgent=%d]", this,
+ urgent));
+ }
+}
+
+//----------------------------------------------------------------------------
+// nsHttpConnection::nsAHttpConnection compatible methods
+//----------------------------------------------------------------------------
+
+nsresult nsHttpConnection::OnHeadersAvailable(nsAHttpTransaction* trans,
+ nsHttpRequestHead* requestHead,
+ nsHttpResponseHead* responseHead,
+ bool* reset) {
+ LOG(
+ ("nsHttpConnection::OnHeadersAvailable [this=%p trans=%p "
+ "response-head=%p]\n",
+ this, trans, responseHead));
+
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+ NS_ENSURE_ARG_POINTER(trans);
+ MOZ_ASSERT(responseHead, "No response head?");
+
+ if (mInSpdyTunnel) {
+ DebugOnly<nsresult> rv =
+ responseHead->SetHeader(nsHttp::X_Firefox_Spdy_Proxy, "true"_ns);
+ MOZ_ASSERT(NS_SUCCEEDED(rv));
+ }
+
+ // we won't change our keep-alive policy unless the server has explicitly
+ // told us to do so.
+
+ // inspect the connection headers for keep-alive info provided the
+ // transaction completed successfully. In the case of a non-sensical close
+ // and keep-alive favor the close out of conservatism.
+
+ bool explicitKeepAlive = false;
+ bool explicitClose =
+ responseHead->HasHeaderValue(nsHttp::Connection, "close") ||
+ responseHead->HasHeaderValue(nsHttp::Proxy_Connection, "close");
+ if (!explicitClose) {
+ explicitKeepAlive =
+ responseHead->HasHeaderValue(nsHttp::Connection, "keep-alive") ||
+ responseHead->HasHeaderValue(nsHttp::Proxy_Connection, "keep-alive");
+ }
+
+ // deal with 408 Server Timeouts
+ uint16_t responseStatus = responseHead->Status();
+ if (responseStatus == 408) {
+ // timeouts that are not caused by persistent connection reuse should
+ // not be retried for browser compatibility reasons. bug 907800. The
+ // server driven close is implicit in the 408.
+ explicitClose = true;
+ explicitKeepAlive = false;
+ }
+
+ if ((responseHead->Version() < HttpVersion::v1_1) ||
+ (requestHead->Version() < HttpVersion::v1_1)) {
+ // HTTP/1.0 connections are by default NOT persistent
+ mKeepAlive = explicitKeepAlive;
+ } else {
+ // HTTP/1.1 connections are by default persistent
+ mKeepAlive = !explicitClose;
+ }
+ mKeepAliveMask = mKeepAlive;
+
+ // if this connection is persistent, then the server may send a "Keep-Alive"
+ // header specifying the maximum number of times the connection can be
+ // reused as well as the maximum amount of time the connection can be idle
+ // before the server will close it. we ignore the max reuse count, because
+ // a "keep-alive" connection is by definition capable of being reused, and
+ // we only care about being able to reuse it once. if a timeout is not
+ // specified then we use our advertized timeout value.
+ bool foundKeepAliveMax = false;
+ if (mKeepAlive) {
+ nsAutoCString keepAlive;
+ Unused << responseHead->GetHeader(nsHttp::Keep_Alive, keepAlive);
+
+ if (mUsingSpdyVersion == SpdyVersion::NONE) {
+ const char* cp = nsCRT::strcasestr(keepAlive.get(), "timeout=");
+ if (cp) {
+ mIdleTimeout = PR_SecondsToInterval((uint32_t)atoi(cp + 8));
+ } else {
+ mIdleTimeout = gHttpHandler->IdleTimeout() * mDefaultTimeoutFactor;
+ }
+
+ cp = nsCRT::strcasestr(keepAlive.get(), "max=");
+ if (cp) {
+ int maxUses = atoi(cp + 4);
+ if (maxUses > 0) {
+ foundKeepAliveMax = true;
+ mRemainingConnectionUses = static_cast<uint32_t>(maxUses);
+ }
+ }
+ }
+
+ LOG(("Connection can be reused [this=%p idle-timeout=%usec]\n", this,
+ PR_IntervalToSeconds(mIdleTimeout)));
+ }
+
+ if (!foundKeepAliveMax && mRemainingConnectionUses &&
+ (mUsingSpdyVersion == SpdyVersion::NONE)) {
+ --mRemainingConnectionUses;
+ }
+
+ switch (mState) {
+ case HttpConnectionState::SETTING_UP_TUNNEL: {
+ nsHttpTransaction* trans = mTransaction->QueryHttpTransaction();
+ // Distinguish SETTING_UP_TUNNEL for proxy or websocket via proxy
+ // See bug 1848013. Do not call HandleTunnelResponse for a tunnel
+ // connection created for WebSocket.
+ if (trans && trans->IsWebsocketUpgrade() &&
+ (trans->GetProxyConnectResponseCode() == 200 ||
+ (mForWebSocket && mInSpdyTunnel))) {
+ HandleWebSocketResponse(requestHead, responseHead, responseStatus);
+ } else {
+ HandleTunnelResponse(responseStatus, reset);
+ }
+ break;
+ }
+ default:
+ if (requestHead->HasHeader(nsHttp::Upgrade)) {
+ HandleWebSocketResponse(requestHead, responseHead, responseStatus);
+ } else if (responseStatus == 101) {
+ // We got an 101 but we are not asking of a WebSsocket?
+ Close(NS_ERROR_ABORT);
+ }
+ }
+
+ mLastHttpResponseVersion = responseHead->Version();
+
+ return NS_OK;
+}
+
+void nsHttpConnection::HandleTunnelResponse(uint16_t responseStatus,
+ bool* reset) {
+ LOG(("nsHttpConnection::HandleTunnelResponse()"));
+ MOZ_ASSERT(TunnelSetupInProgress());
+ MOZ_ASSERT(mProxyConnectStream);
+ MOZ_ASSERT(mUsingSpdyVersion == SpdyVersion::NONE,
+ "SPDY NPN Complete while using proxy connect stream");
+ // If we're doing a proxy connect, we need to check whether or not
+ // it was successful. If so, we have to reset the transaction and step-up
+ // the socket connection if using SSL. Finally, we have to wake up the
+ // socket write request.
+
+ if (responseStatus == 200) {
+ ChangeState(HttpConnectionState::REQUEST);
+ }
+ mProxyConnectStream = nullptr;
+ bool isHttps = mTransaction ? mTransaction->ConnectionInfo()->EndToEndSSL()
+ : mConnInfo->EndToEndSSL();
+ bool onlyConnect = mTransactionCaps & NS_HTTP_CONNECT_ONLY;
+
+ mTransaction->OnProxyConnectComplete(responseStatus);
+ if (responseStatus == 200) {
+ LOG(("proxy CONNECT succeeded! endtoendssl=%d onlyconnect=%d\n", isHttps,
+ onlyConnect));
+ // If we're only connecting, we don't need to reset the transaction
+ // state. We need to upgrade the socket now without doing the actual
+ // http request.
+ if (!onlyConnect) {
+ *reset = true;
+ }
+ nsresult rv;
+ // CONNECT only flag doesn't do the tls setup. https here only
+ // ensures a proxy tunnel was used not that tls is setup.
+ if (isHttps) {
+ if (!onlyConnect) {
+ if (mConnInfo->UsingHttpsProxy()) {
+ LOG(("%p new TLSFilterTransaction %s %d\n", this, mConnInfo->Origin(),
+ mConnInfo->OriginPort()));
+ SetupSecondaryTLS();
+ }
+
+ rv = mTlsHandshaker->InitSSLParams(false, true);
+ LOG(("InitSSLParams [rv=%" PRIx32 "]\n", static_cast<uint32_t>(rv)));
+ } else {
+ // We have an https protocol but the CONNECT only flag was
+ // specified. The consumer only wants a raw socket to the
+ // proxy. We have to mark this as complete to finish the
+ // transaction and be upgraded. OnSocketReadable() uses this
+ // to detect an inactive tunnel and blocks completion.
+ mTlsHandshaker->SetNPNComplete();
+ }
+ }
+ rv = mSocketOut->AsyncWait(this, 0, 0, nullptr);
+ // XXX what if this fails -- need to handle this error
+ MOZ_ASSERT(NS_SUCCEEDED(rv), "mSocketOut->AsyncWait failed");
+ } else {
+ LOG(("proxy CONNECT failed! endtoendssl=%d onlyconnect=%d\n", isHttps,
+ onlyConnect));
+ mTransaction->SetProxyConnectFailed();
+ }
+}
+
+void nsHttpConnection::HandleWebSocketResponse(nsHttpRequestHead* requestHead,
+ nsHttpResponseHead* responseHead,
+ uint16_t responseStatus) {
+ LOG(("nsHttpConnection::HandleWebSocketResponse()"));
+
+ // Don't use persistent connection for Upgrade unless there's an auth failure:
+ // some proxies expect to see auth response on persistent connection.
+ // Also allow persistent conn for h2, as we don't want to waste connections
+ // for multiplexed upgrades.
+ if (responseStatus != 401 && responseStatus != 407 && !mSpdySession) {
+ LOG(("HTTP Upgrade in play - disable keepalive for http/1.x\n"));
+ MarkAsDontReuse();
+ }
+
+ // the new Http2StreamWebSocket breaks wpt on
+ // h2 basic authentication 401, due to MakeSticky() work around
+ // so we DontReuse() in this circumstance
+ if (mInSpdyTunnel && (responseStatus == 401 || responseStatus == 407)) {
+ MarkAsDontReuse();
+ return;
+ }
+
+ if (responseStatus == 101) {
+ nsAutoCString upgradeReq;
+ bool hasUpgradeReq =
+ NS_SUCCEEDED(requestHead->GetHeader(nsHttp::Upgrade, upgradeReq));
+ nsAutoCString upgradeResp;
+ bool hasUpgradeResp =
+ NS_SUCCEEDED(responseHead->GetHeader(nsHttp::Upgrade, upgradeResp));
+ if (!hasUpgradeReq || !hasUpgradeResp ||
+ !nsHttp::FindToken(upgradeResp.get(), upgradeReq.get(),
+ HTTP_HEADER_VALUE_SEPS)) {
+ LOG(("HTTP 101 Upgrade header mismatch req = %s, resp = %s\n",
+ upgradeReq.get(),
+ !upgradeResp.IsEmpty() ? upgradeResp.get()
+ : "RESPONSE's nsHttp::Upgrade is empty"));
+ Close(NS_ERROR_ABORT);
+ } else {
+ LOG(("HTTP Upgrade Response to %s\n", upgradeResp.get()));
+ }
+ }
+}
+
+bool nsHttpConnection::IsReused() {
+ if (mIsReused) return true;
+ if (!mConsiderReusedAfterInterval) return false;
+
+ // ReusedAfter allows a socket to be consider reused only after a certain
+ // interval of time has passed
+ return (PR_IntervalNow() - mConsiderReusedAfterEpoch) >=
+ mConsiderReusedAfterInterval;
+}
+
+void nsHttpConnection::SetIsReusedAfter(uint32_t afterMilliseconds) {
+ mConsiderReusedAfterEpoch = PR_IntervalNow();
+ mConsiderReusedAfterInterval = PR_MillisecondsToInterval(afterMilliseconds);
+}
+
+nsresult nsHttpConnection::TakeTransport(nsISocketTransport** aTransport,
+ nsIAsyncInputStream** aInputStream,
+ nsIAsyncOutputStream** aOutputStream) {
+ if (mUsingSpdyVersion != SpdyVersion::NONE) return NS_ERROR_FAILURE;
+ if (mTransaction && !mTransaction->IsDone()) return NS_ERROR_IN_PROGRESS;
+ if (!(mSocketTransport && mSocketIn && mSocketOut)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ if (mInputOverflow) mSocketIn = mInputOverflow.forget();
+
+ // Change TCP Keepalive frequency to long-lived if currently short-lived.
+ if (mTCPKeepaliveConfig == kTCPKeepaliveShortLivedConfig) {
+ if (mTCPKeepaliveTransitionTimer) {
+ mTCPKeepaliveTransitionTimer->Cancel();
+ mTCPKeepaliveTransitionTimer = nullptr;
+ }
+ nsresult rv = StartLongLivedTCPKeepalives();
+ LOG(
+ ("nsHttpConnection::TakeTransport [%p] calling "
+ "StartLongLivedTCPKeepalives",
+ this));
+ if (NS_FAILED(rv)) {
+ LOG(
+ ("nsHttpConnection::TakeTransport [%p] "
+ "StartLongLivedTCPKeepalives failed rv[0x%" PRIx32 "]",
+ this, static_cast<uint32_t>(rv)));
+ }
+ }
+
+ if (mHasTLSTransportLayer) {
+ RefPtr<TLSTransportLayer> tlsTransportLayer =
+ do_QueryObject(mSocketTransport);
+ if (tlsTransportLayer) {
+ // This transport layer is no longer owned by this connection.
+ tlsTransportLayer->ReleaseOwner();
+ }
+ }
+
+ mSocketTransport->SetSecurityCallbacks(nullptr);
+ mSocketTransport->SetEventSink(nullptr, nullptr);
+
+ mSocketTransport.forget(aTransport);
+ mSocketIn.forget(aInputStream);
+ mSocketOut.forget(aOutputStream);
+
+ return NS_OK;
+}
+
+uint32_t nsHttpConnection::ReadTimeoutTick(PRIntervalTime now) {
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+
+ // make sure timer didn't tick before Activate()
+ if (!mTransaction) return UINT32_MAX;
+
+ // Spdy implements some timeout handling using the SPDY ping frame.
+ if (mSpdySession) {
+ return mSpdySession->ReadTimeoutTick(now);
+ }
+
+ uint32_t nextTickAfter = UINT32_MAX;
+ // Timeout if the response is taking too long to arrive.
+ if (mResponseTimeoutEnabled) {
+ NS_WARNING_ASSERTION(
+ gHttpHandler->ResponseTimeoutEnabled(),
+ "Timing out a response, but response timeout is disabled!");
+
+ PRIntervalTime initialResponseDelta = now - mLastWriteTime;
+
+ if (initialResponseDelta > mTransaction->ResponseTimeout()) {
+ LOG(("canceling transaction: no response for %ums: timeout is %dms\n",
+ PR_IntervalToMilliseconds(initialResponseDelta),
+ PR_IntervalToMilliseconds(mTransaction->ResponseTimeout())));
+
+ mResponseTimeoutEnabled = false;
+ SetCloseReason(ConnectionCloseReason::IDLE_TIMEOUT);
+ // This will also close the connection
+ CloseTransaction(mTransaction, NS_ERROR_NET_TIMEOUT);
+ return UINT32_MAX;
+ }
+ nextTickAfter = PR_IntervalToSeconds(mTransaction->ResponseTimeout()) -
+ PR_IntervalToSeconds(initialResponseDelta);
+ nextTickAfter = std::max(nextTickAfter, 1U);
+ }
+
+ if (!mTlsHandshaker->NPNComplete()) {
+ // We can reuse mLastWriteTime here, because it is set when the
+ // connection is activated and only change when a transaction
+ // succesfullu write to the socket and this can only happen after
+ // the TLS handshake is done.
+ PRIntervalTime initialTLSDelta = now - mLastWriteTime;
+ if (initialTLSDelta >
+ PR_MillisecondsToInterval(gHttpHandler->TLSHandshakeTimeout())) {
+ LOG(
+ ("canceling transaction: tls handshake takes too long: tls handshake "
+ "last %ums, timeout is %dms.",
+ PR_IntervalToMilliseconds(initialTLSDelta),
+ gHttpHandler->TLSHandshakeTimeout()));
+
+ // This will also close the connection
+ SetCloseReason(ConnectionCloseReason::TLS_TIMEOUT);
+ CloseTransaction(mTransaction, NS_ERROR_NET_TIMEOUT);
+ return UINT32_MAX;
+ }
+ }
+
+ return nextTickAfter;
+}
+
+void nsHttpConnection::UpdateTCPKeepalive(nsITimer* aTimer, void* aClosure) {
+ MOZ_ASSERT(aTimer);
+ MOZ_ASSERT(aClosure);
+
+ nsHttpConnection* self = static_cast<nsHttpConnection*>(aClosure);
+
+ if (NS_WARN_IF(self->mUsingSpdyVersion != SpdyVersion::NONE)) {
+ return;
+ }
+
+ // Do not reduce keepalive probe frequency for idle connections.
+ if (self->mIdleMonitoring) {
+ return;
+ }
+
+ nsresult rv = self->StartLongLivedTCPKeepalives();
+ if (NS_FAILED(rv)) {
+ LOG(
+ ("nsHttpConnection::UpdateTCPKeepalive [%p] "
+ "StartLongLivedTCPKeepalives failed rv[0x%" PRIx32 "]",
+ self, static_cast<uint32_t>(rv)));
+ }
+}
+
+void nsHttpConnection::GetTLSSocketControl(
+ nsITLSSocketControl** tlsSocketControl) {
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+ LOG(("nsHttpConnection::GetTLSSocketControl trans=%p socket=%p\n",
+ mTransaction.get(), mSocketTransport.get()));
+
+ *tlsSocketControl = nullptr;
+
+ if (mTransaction && NS_SUCCEEDED(mTransaction->GetTransactionTLSSocketControl(
+ tlsSocketControl))) {
+ return;
+ }
+
+ if (mSocketTransport &&
+ NS_SUCCEEDED(mSocketTransport->GetTlsSocketControl(tlsSocketControl))) {
+ return;
+ }
+}
+
+nsresult nsHttpConnection::PushBack(const char* data, uint32_t length) {
+ LOG(("nsHttpConnection::PushBack [this=%p, length=%d]\n", this, length));
+
+ if (mInputOverflow) {
+ NS_ERROR("nsHttpConnection::PushBack only one buffer supported");
+ return NS_ERROR_UNEXPECTED;
+ }
+
+ mInputOverflow = new nsPreloadedStream(mSocketIn, data, length);
+ return NS_OK;
+}
+
+class HttpConnectionForceIO : public Runnable {
+ public:
+ HttpConnectionForceIO(nsHttpConnection* aConn, bool doRecv)
+ : Runnable("net::HttpConnectionForceIO"), mConn(aConn), mDoRecv(doRecv) {}
+
+ NS_IMETHOD Run() override {
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+
+ if (mDoRecv) {
+ if (!mConn->mSocketIn) return NS_OK;
+ return mConn->OnInputStreamReady(mConn->mSocketIn);
+ }
+
+ MOZ_ASSERT(mConn->mForceSendPending);
+ mConn->mForceSendPending = false;
+
+ if (!mConn->mSocketOut) {
+ return NS_OK;
+ }
+ return mConn->OnOutputStreamReady(mConn->mSocketOut);
+ }
+
+ private:
+ RefPtr<nsHttpConnection> mConn;
+ bool mDoRecv;
+};
+
+nsresult nsHttpConnection::ResumeSend() {
+ LOG(("nsHttpConnection::ResumeSend [this=%p]\n", this));
+
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+
+ if (mSocketOut) {
+ return mSocketOut->AsyncWait(this, 0, 0, nullptr);
+ }
+
+ MOZ_ASSERT_UNREACHABLE("no socket output stream");
+ return NS_ERROR_UNEXPECTED;
+}
+
+nsresult nsHttpConnection::ResumeRecv() {
+ LOG(("nsHttpConnection::ResumeRecv [this=%p]\n", this));
+
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+
+ // the mLastReadTime timestamp is used for finding slowish readers
+ // and can be pretty sensitive. For that reason we actually reset it
+ // when we ask to read (resume recv()) so that when we get called back
+ // with actual read data in OnSocketReadable() we are only measuring
+ // the latency between those two acts and not all the processing that
+ // may get done before the ResumeRecv() call
+ mLastReadTime = PR_IntervalNow();
+
+ if (mSocketIn) {
+ if (mHasTLSTransportLayer) {
+ RefPtr<TLSTransportLayer> tlsTransportLayer =
+ do_QueryObject(mSocketTransport);
+ if (tlsTransportLayer) {
+ bool hasDataToRecv = tlsTransportLayer->HasDataToRecv();
+ if (hasDataToRecv && NS_SUCCEEDED(ForceRecv())) {
+ return NS_OK;
+ }
+ Unused << mSocketIn->AsyncWait(this, 0, 0, nullptr);
+ // We have to return an error here to let the underlying layer know this
+ // connection doesn't read any data.
+ return NS_BASE_STREAM_WOULD_BLOCK;
+ }
+ }
+ return mSocketIn->AsyncWait(this, 0, 0, nullptr);
+ }
+
+ MOZ_ASSERT_UNREACHABLE("no socket input stream");
+ return NS_ERROR_UNEXPECTED;
+}
+
+void nsHttpConnection::ForceSendIO(nsITimer* aTimer, void* aClosure) {
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+ nsHttpConnection* self = static_cast<nsHttpConnection*>(aClosure);
+ MOZ_ASSERT(aTimer == self->mForceSendTimer);
+ self->mForceSendTimer = nullptr;
+ NS_DispatchToCurrentThread(new HttpConnectionForceIO(self, false));
+}
+
+nsresult nsHttpConnection::MaybeForceSendIO() {
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+ // due to bug 1213084 sometimes real I/O events do not get serviced when
+ // NSPR derived I/O events are ready and this can cause a deadlock with
+ // https over https proxying. Normally we would expect the write callback to
+ // be invoked before this timer goes off, but set it at the old windows
+ // tick interval (kForceDelay) as a backup for those circumstances.
+ static const uint32_t kForceDelay = 17; // ms
+
+ if (mForceSendPending) {
+ return NS_OK;
+ }
+ MOZ_ASSERT(!mForceSendTimer);
+ mForceSendPending = true;
+ return NS_NewTimerWithFuncCallback(getter_AddRefs(mForceSendTimer),
+ nsHttpConnection::ForceSendIO, this,
+ kForceDelay, nsITimer::TYPE_ONE_SHOT,
+ "net::nsHttpConnection::MaybeForceSendIO");
+}
+
+// trigger an asynchronous read
+nsresult nsHttpConnection::ForceRecv() {
+ LOG(("nsHttpConnection::ForceRecv [this=%p]\n", this));
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+
+ return NS_DispatchToCurrentThread(new HttpConnectionForceIO(this, true));
+}
+
+// trigger an asynchronous write
+nsresult nsHttpConnection::ForceSend() {
+ LOG(("nsHttpConnection::ForceSend [this=%p]\n", this));
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+
+ return MaybeForceSendIO();
+}
+
+void nsHttpConnection::BeginIdleMonitoring() {
+ LOG(("nsHttpConnection::BeginIdleMonitoring [this=%p]\n", this));
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+ MOZ_ASSERT(!mTransaction, "BeginIdleMonitoring() while active");
+ MOZ_ASSERT(mUsingSpdyVersion == SpdyVersion::NONE,
+ "Idle monitoring of spdy not allowed");
+
+ LOG(("Entering Idle Monitoring Mode [this=%p]", this));
+ mIdleMonitoring = true;
+ if (mSocketIn) mSocketIn->AsyncWait(this, 0, 0, nullptr);
+}
+
+void nsHttpConnection::EndIdleMonitoring() {
+ LOG(("nsHttpConnection::EndIdleMonitoring [this=%p]\n", this));
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+ MOZ_ASSERT(!mTransaction, "EndIdleMonitoring() while active");
+
+ if (mIdleMonitoring) {
+ LOG(("Leaving Idle Monitoring Mode [this=%p]", this));
+ mIdleMonitoring = false;
+ if (mSocketIn) mSocketIn->AsyncWait(nullptr, 0, 0, nullptr);
+ }
+}
+
+HttpVersion nsHttpConnection::Version() {
+ if (mUsingSpdyVersion != SpdyVersion::NONE) {
+ return HttpVersion::v2_0;
+ }
+ return mLastHttpResponseVersion;
+}
+
+PRIntervalTime nsHttpConnection::LastWriteTime() { return mLastWriteTime; }
+
+//-----------------------------------------------------------------------------
+// nsHttpConnection <private>
+//-----------------------------------------------------------------------------
+
+void nsHttpConnection::CloseTransaction(nsAHttpTransaction* trans,
+ nsresult reason, bool aIsShutdown) {
+ LOG(("nsHttpConnection::CloseTransaction[this=%p trans=%p reason=%" PRIx32
+ "]\n",
+ this, trans, static_cast<uint32_t>(reason)));
+
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+
+ if (mCurrentBytesRead > mMaxBytesRead) mMaxBytesRead = mCurrentBytesRead;
+
+ // mask this error code because its not a real error.
+ if (reason == NS_BASE_STREAM_CLOSED) reason = NS_OK;
+
+ if (mUsingSpdyVersion != SpdyVersion::NONE) {
+ DontReuse();
+ // if !mSpdySession then mUsingSpdyVersion must be false for canreuse()
+ mSpdySession->SetCleanShutdown(aIsShutdown);
+ mUsingSpdyVersion = SpdyVersion::NONE;
+ mSpdySession = nullptr;
+ }
+
+ if (mTransaction) {
+ LOG((" closing associated mTransaction"));
+ mHttp1xTransactionCount += mTransaction->Http1xTransactionCount();
+
+ mTransaction->Close(reason);
+ mTransaction = nullptr;
+ }
+
+ {
+ MutexAutoLock lock(mCallbacksLock);
+ mCallbacks = nullptr;
+ }
+
+ if (NS_FAILED(reason) && (reason != NS_BINDING_RETARGETED)) {
+ Close(reason, aIsShutdown);
+ }
+
+ // flag the connection as reused here for convenience sake. certainly
+ // it might be going away instead ;-)
+ mIsReused = true;
+}
+
+bool nsHttpConnection::CheckCanWrite0RTTData() {
+ MOZ_ASSERT(mTlsHandshaker->EarlyDataAvailable());
+ nsCOMPtr<nsITLSSocketControl> tlsSocketControl;
+ GetTLSSocketControl(getter_AddRefs(tlsSocketControl));
+ if (!tlsSocketControl) {
+ return false;
+ }
+ nsCOMPtr<nsITransportSecurityInfo> securityInfo;
+ if (NS_FAILED(
+ tlsSocketControl->GetSecurityInfo(getter_AddRefs(securityInfo)))) {
+ return false;
+ }
+ if (!securityInfo) {
+ return false;
+ }
+ nsAutoCString negotiatedNPN;
+ // If the following code fails means that the handshake is not done
+ // yet, so continue writing 0RTT data.
+ nsresult rv = securityInfo->GetNegotiatedNPN(negotiatedNPN);
+ if (NS_FAILED(rv)) {
+ return true;
+ }
+ bool earlyDataAccepted = false;
+ rv = tlsSocketControl->GetEarlyDataAccepted(&earlyDataAccepted);
+ // If 0RTT data is accepted we can continue writing data,
+ // if it is reject stop writing more data.
+ return NS_SUCCEEDED(rv) && earlyDataAccepted;
+}
+
+nsresult nsHttpConnection::OnReadSegment(const char* buf, uint32_t count,
+ uint32_t* countRead) {
+ LOG(("nsHttpConnection::OnReadSegment [this=%p]\n", this));
+ if (count == 0) {
+ // some ReadSegments implementations will erroneously call the writer
+ // to consume 0 bytes worth of data. we must protect against this case
+ // or else we'd end up closing the socket prematurely.
+ NS_ERROR("bad ReadSegments implementation");
+ return NS_ERROR_FAILURE; // stop iterating
+ }
+
+ // If we are waiting for 0RTT Response, check maybe nss has finished
+ // handshake already.
+ // IsAlive() calls drive the handshake and that may cause nss and necko
+ // to be out of sync.
+ if (mTlsHandshaker->EarlyDataAvailable() && !CheckCanWrite0RTTData()) {
+ MOZ_DIAGNOSTIC_ASSERT(mTlsHandshaker->TlsHandshakeComplitionPending());
+ LOG(
+ ("nsHttpConnection::OnReadSegment Do not write any data, wait"
+ " for EnsureNPNComplete to be called [this=%p]",
+ this));
+ *countRead = 0;
+ return NS_BASE_STREAM_WOULD_BLOCK;
+ }
+
+ nsresult rv = mSocketOut->Write(buf, count, countRead);
+ if (NS_FAILED(rv)) {
+ mSocketOutCondition = rv;
+ } else if (*countRead == 0) {
+ mSocketOutCondition = NS_BASE_STREAM_CLOSED;
+ } else {
+ mLastWriteTime = PR_IntervalNow();
+ mSocketOutCondition = NS_OK; // reset condition
+ if (!TunnelSetupInProgress()) {
+ mTotalBytesWritten += *countRead;
+ mExperienceState |= ConnectionExperienceState::First_Request_Sent;
+ }
+ }
+
+ return mSocketOutCondition;
+}
+
+nsresult nsHttpConnection::OnSocketWritable() {
+ LOG(("nsHttpConnection::OnSocketWritable [this=%p] host=%s\n", this,
+ mConnInfo->Origin()));
+
+ nsresult rv;
+ uint32_t transactionBytes;
+ bool again = true;
+
+ // Prevent STS thread from being blocked by single OnOutputStreamReady
+ // callback.
+ const uint32_t maxWriteAttempts = 128;
+ uint32_t writeAttempts = 0;
+
+ if (mTransactionCaps & NS_HTTP_CONNECT_ONLY) {
+ if (!mConnInfo->UsingConnect()) {
+ // A CONNECT has been requested for this connection but will never
+ // be performed. This should never happen.
+ MOZ_ASSERT(false, "proxy connect will never happen");
+ LOG(("return failure because proxy connect will never happen\n"));
+ return NS_ERROR_FAILURE;
+ }
+
+ if (mState == HttpConnectionState::REQUEST) {
+ // Don't need to check this each write attempt since it is only
+ // updated after OnSocketWritable completes.
+ // We've already done primary tls (if needed) and sent our CONNECT.
+ // If we're doing a CONNECT only request there's no need to write
+ // the http transaction or do the SSL handshake here.
+ LOG(("return ok because proxy connect successful\n"));
+ return NS_OK;
+ }
+ }
+
+ do {
+ ++writeAttempts;
+ rv = mSocketOutCondition = NS_OK;
+ transactionBytes = 0;
+
+ switch (mState) {
+ case HttpConnectionState::SETTING_UP_TUNNEL:
+ if (mConnInfo->UsingHttpsProxy() &&
+ !mTlsHandshaker->EnsureNPNComplete()) {
+ MOZ_DIAGNOSTIC_ASSERT(!mTlsHandshaker->EarlyDataAvailable());
+ mSocketOutCondition = NS_BASE_STREAM_WOULD_BLOCK;
+ } else {
+ rv = SendConnectRequest(this, &transactionBytes);
+ }
+ break;
+ default: {
+ // The SSL handshake must be completed before the
+ // transaction->readsegments() processing can proceed because we need to
+ // know how to format the request differently for http/1, http/2, spdy,
+ // etc.. and that is negotiated with NPN/ALPN in the SSL handshake.
+ if (!mTlsHandshaker->EnsureNPNComplete() &&
+ (!mTlsHandshaker->EarlyDataUsed() ||
+ mTlsHandshaker->TlsHandshakeComplitionPending())) {
+ // The handshake is not done and we cannot write 0RTT data or nss has
+ // already finished 0RTT data.
+ mSocketOutCondition = NS_BASE_STREAM_WOULD_BLOCK;
+ } else if (!mTransaction) {
+ rv = NS_ERROR_FAILURE;
+ LOG((" No Transaction In OnSocketWritable\n"));
+ } else if (NS_SUCCEEDED(rv)) {
+ // for non spdy sessions let the connection manager know
+ if (!mReportedSpdy && mTlsHandshaker->NPNComplete()) {
+ mReportedSpdy = true;
+ MOZ_ASSERT(!mEverUsedSpdy);
+ gHttpHandler->ConnMgr()->ReportSpdyConnection(this, false, false);
+ }
+
+ LOG((" writing transaction request stream\n"));
+ rv = mTransaction->ReadSegmentsAgain(this,
+ nsIOService::gDefaultSegmentSize,
+ &transactionBytes, &again);
+ if (mTlsHandshaker->EarlyDataUsed()) {
+ mContentBytesWritten0RTT += transactionBytes;
+ if (NS_FAILED(rv) && rv != NS_BASE_STREAM_WOULD_BLOCK) {
+ // If an error happens while writting 0RTT data, restart
+ // the transactiions without 0RTT.
+ mTlsHandshaker->FinishNPNSetup(false, true);
+ }
+ } else {
+ mContentBytesWritten += transactionBytes;
+ }
+ }
+ }
+ }
+
+ LOG(
+ ("nsHttpConnection::OnSocketWritable %p "
+ "ReadSegments returned [rv=%" PRIx32 " read=%u "
+ "sock-cond=%" PRIx32 " again=%d]\n",
+ this, static_cast<uint32_t>(rv), transactionBytes,
+ static_cast<uint32_t>(mSocketOutCondition), again));
+
+ // XXX some streams return NS_BASE_STREAM_CLOSED to indicate EOF.
+ if (rv == NS_BASE_STREAM_CLOSED && !mTransaction->IsDone()) {
+ rv = NS_OK;
+ transactionBytes = 0;
+ }
+
+ if (NS_FAILED(rv)) {
+ // if the transaction didn't want to write any more data, then
+ // wait for the transaction to call ResumeSend.
+ if (rv == NS_BASE_STREAM_WOULD_BLOCK) {
+ rv = NS_OK;
+ }
+ again = false;
+ } else if (NS_FAILED(mSocketOutCondition)) {
+ if (mSocketOutCondition == NS_BASE_STREAM_WOULD_BLOCK) {
+ if (!mTlsHandshaker->EarlyDataCanNotBeUsed()) {
+ // continue writing
+ // We are not going to poll for write if the handshake is in progress,
+ // but early data cannot be used.
+ rv = mSocketOut->AsyncWait(this, 0, 0, nullptr);
+ }
+ } else {
+ rv = mSocketOutCondition;
+ }
+ again = false;
+ } else if (!transactionBytes) {
+ rv = NS_OK;
+
+ if (mTransaction) { // in case the ReadSegments stack called
+ // CloseTransaction()
+ //
+ // at this point we've written out the entire transaction, and now we
+ // must wait for the server's response. we manufacture a status message
+ // here to reflect the fact that we are waiting. this message will be
+ // trumped (overwritten) if the server responds quickly.
+ //
+ mTransaction->OnTransportStatus(mSocketTransport,
+ NS_NET_STATUS_WAITING_FOR, 0);
+
+ rv = ResumeRecv(); // start reading
+ }
+ // When Spdy tunnel is used we need to explicitly set when a request is
+ // done.
+ if ((mState != HttpConnectionState::SETTING_UP_TUNNEL) && !mSpdySession) {
+ nsHttpTransaction* trans = mTransaction->QueryHttpTransaction();
+ // needed for websocket over h2 (direct)
+ if (!trans || !trans->IsWebsocketUpgrade()) {
+ mRequestDone = true;
+ }
+ }
+ again = false;
+ } else if (writeAttempts >= maxWriteAttempts) {
+ LOG((" yield for other transactions\n"));
+ rv = mSocketOut->AsyncWait(this, 0, 0, nullptr); // continue writing
+ again = false;
+ }
+ // write more to the socket until error or end-of-request...
+ } while (again && gHttpHandler->Active());
+
+ return rv;
+}
+
+nsresult nsHttpConnection::OnWriteSegment(char* buf, uint32_t count,
+ uint32_t* countWritten) {
+ if (count == 0) {
+ // some WriteSegments implementations will erroneously call the reader
+ // to provide 0 bytes worth of data. we must protect against this case
+ // or else we'd end up closing the socket prematurely.
+ NS_ERROR("bad WriteSegments implementation");
+ return NS_ERROR_FAILURE; // stop iterating
+ }
+
+ if (ChaosMode::isActive(ChaosFeature::IOAmounts) &&
+ ChaosMode::randomUint32LessThan(2)) {
+ // read 1...count bytes
+ count = ChaosMode::randomUint32LessThan(count) + 1;
+ }
+
+ nsresult rv = mSocketIn->Read(buf, count, countWritten);
+ if (NS_FAILED(rv)) {
+ mSocketInCondition = rv;
+ } else if (*countWritten == 0) {
+ mSocketInCondition = NS_BASE_STREAM_CLOSED;
+ } else {
+ mSocketInCondition = NS_OK; // reset condition
+ mExperienceState |= ConnectionExperienceState::First_Response_Received;
+ }
+
+ return mSocketInCondition;
+}
+
+nsresult nsHttpConnection::OnSocketReadable() {
+ LOG(("nsHttpConnection::OnSocketReadable [this=%p]\n", this));
+
+ PRIntervalTime now = PR_IntervalNow();
+ PRIntervalTime delta = now - mLastReadTime;
+
+ // Reset mResponseTimeoutEnabled to stop response timeout checks.
+ mResponseTimeoutEnabled = false;
+
+ if ((mTransactionCaps & NS_HTTP_CONNECT_ONLY) && !mConnInfo->UsingConnect()) {
+ // A CONNECT has been requested for this connection but will never
+ // be performed. This should never happen.
+ MOZ_ASSERT(false, "proxy connect will never happen");
+ LOG(("return failure because proxy connect will never happen\n"));
+ return NS_ERROR_FAILURE;
+ }
+
+ if (mKeepAliveMask && (delta >= mMaxHangTime)) {
+ LOG(("max hang time exceeded!\n"));
+ // give the handler a chance to create a new persistent connection to
+ // this host if we've been busy for too long.
+ mKeepAliveMask = false;
+ Unused << gHttpHandler->ProcessPendingQ(mConnInfo);
+ }
+
+ // Reduce the estimate of the time since last read by up to 1 RTT to
+ // accommodate exhausted sender TCP congestion windows or minor I/O delays.
+ mLastReadTime = now;
+
+ nsresult rv = NS_OK;
+ uint32_t n;
+ bool again = true;
+
+ do {
+ if (!TunnelSetupInProgress() && !mTlsHandshaker->EnsureNPNComplete()) {
+ // Unless we are setting up a tunnel via CONNECT, prevent reading
+ // from the socket until the results of NPN
+ // negotiation are known (which is determined from the write path).
+ // If the server speaks SPDY it is likely the readable data here is
+ // a spdy settings frame and without NPN it would be misinterpreted
+ // as HTTP/*
+
+ LOG(
+ ("nsHttpConnection::OnSocketReadable %p return due to inactive "
+ "tunnel setup but incomplete NPN state\n",
+ this));
+ if (mTlsHandshaker->EarlyDataAvailable() || mHasTLSTransportLayer) {
+ rv = ResumeRecv();
+ }
+ break;
+ }
+
+ mSocketInCondition = NS_OK;
+ if (!mTransaction) {
+ rv = NS_ERROR_FAILURE;
+ LOG((" No Transaction In OnSocketWritable\n"));
+ } else {
+ rv = mTransaction->WriteSegmentsAgain(
+ this, nsIOService::gDefaultSegmentSize, &n, &again);
+ }
+ LOG(("nsHttpConnection::OnSocketReadable %p trans->ws rv=%" PRIx32
+ " n=%d socketin=%" PRIx32 "\n",
+ this, static_cast<uint32_t>(rv), n,
+ static_cast<uint32_t>(mSocketInCondition)));
+ if (NS_FAILED(rv)) {
+ // if the transaction didn't want to take any more data, then
+ // wait for the transaction to call ResumeRecv.
+ if (rv == NS_BASE_STREAM_WOULD_BLOCK) {
+ rv = NS_OK;
+ }
+ again = false;
+ } else {
+ mCurrentBytesRead += n;
+ mTotalBytesRead += n;
+ if (NS_FAILED(mSocketInCondition)) {
+ // continue waiting for the socket if necessary...
+ if (mSocketInCondition == NS_BASE_STREAM_WOULD_BLOCK) {
+ rv = ResumeRecv();
+ } else {
+ rv = mSocketInCondition;
+ }
+ again = false;
+ }
+ }
+ // read more from the socket until error...
+ } while (again && gHttpHandler->Active());
+
+ return rv;
+}
+
+void nsHttpConnection::SetupSecondaryTLS() {
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+ MOZ_ASSERT(!mHasTLSTransportLayer);
+ LOG(("nsHttpConnection %p SetupSecondaryTLS %s %d\n", this,
+ mConnInfo->Origin(), mConnInfo->OriginPort()));
+
+ nsHttpConnectionInfo* ci = nullptr;
+ if (mTransaction) {
+ ci = mTransaction->ConnectionInfo();
+ }
+ if (!ci) {
+ ci = mConnInfo;
+ }
+ MOZ_ASSERT(ci);
+
+ RefPtr<TLSTransportLayer> transportLayer =
+ new TLSTransportLayer(mSocketTransport, mSocketIn, mSocketOut, this);
+ if (transportLayer->Init(ci->Origin(), ci->OriginPort())) {
+ mSocketIn = transportLayer->GetInputStreamWrapper();
+ mSocketOut = transportLayer->GetOutputStreamWrapper();
+ mSocketTransport = transportLayer;
+ mHasTLSTransportLayer = true;
+ LOG(("Create mTLSTransportLayer %p", this));
+ }
+}
+
+void nsHttpConnection::SetInSpdyTunnel() {
+ mInSpdyTunnel = true;
+ mForcePlainText = true;
+}
+
+// static
+nsresult nsHttpConnection::MakeConnectString(nsAHttpTransaction* trans,
+ nsHttpRequestHead* request,
+ nsACString& result, bool h2ws,
+ bool aShouldResistFingerprinting) {
+ result.Truncate();
+ if (!trans->ConnectionInfo()) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ DebugOnly<nsresult> rv{};
+
+ rv = nsHttpHandler::GenerateHostPort(
+ nsDependentCString(trans->ConnectionInfo()->Origin()),
+ trans->ConnectionInfo()->OriginPort(), result);
+ MOZ_ASSERT(NS_SUCCEEDED(rv));
+
+ // CONNECT host:port HTTP/1.1
+ request->SetMethod("CONNECT"_ns);
+ request->SetVersion(gHttpHandler->HttpVersion());
+ if (h2ws) {
+ // HTTP/2 websocket CONNECT forms need the full request URI
+ nsAutoCString requestURI;
+ trans->RequestHead()->RequestURI(requestURI);
+ request->SetRequestURI(requestURI);
+
+ request->SetHTTPS(trans->RequestHead()->IsHTTPS());
+
+ nsAutoCString val;
+ if (NS_SUCCEEDED(trans->RequestHead()->GetHeader(
+ nsHttp::Sec_WebSocket_Extensions, val))) {
+ rv = request->SetHeader(nsHttp::Sec_WebSocket_Extensions, val);
+ MOZ_ASSERT(NS_SUCCEEDED(rv));
+ }
+ if (NS_SUCCEEDED(trans->RequestHead()->GetHeader(
+ nsHttp::Sec_WebSocket_Protocol, val))) {
+ rv = request->SetHeader(nsHttp::Sec_WebSocket_Protocol, val);
+ MOZ_ASSERT(NS_SUCCEEDED(rv));
+ }
+ if (NS_SUCCEEDED(trans->RequestHead()->GetHeader(
+ nsHttp::Sec_WebSocket_Version, val))) {
+ rv = request->SetHeader(nsHttp::Sec_WebSocket_Version, val);
+ MOZ_ASSERT(NS_SUCCEEDED(rv));
+ }
+ } else {
+ request->SetRequestURI(result);
+ }
+ rv = request->SetHeader(nsHttp::User_Agent,
+ gHttpHandler->UserAgent(aShouldResistFingerprinting));
+ MOZ_ASSERT(NS_SUCCEEDED(rv));
+
+ // a CONNECT is always persistent
+ rv = request->SetHeader(nsHttp::Proxy_Connection, "keep-alive"_ns);
+ MOZ_ASSERT(NS_SUCCEEDED(rv));
+ rv = request->SetHeader(nsHttp::Connection, "keep-alive"_ns);
+ MOZ_ASSERT(NS_SUCCEEDED(rv));
+
+ // all HTTP/1.1 requests must include a Host header (even though it
+ // may seem redundant in this case; see bug 82388).
+ rv = request->SetHeader(nsHttp::Host, result);
+ MOZ_ASSERT(NS_SUCCEEDED(rv));
+
+ nsAutoCString val;
+ if (NS_SUCCEEDED(
+ trans->RequestHead()->GetHeader(nsHttp::Proxy_Authorization, val))) {
+ // we don't know for sure if this authorization is intended for the
+ // SSL proxy, so we add it just in case.
+ rv = request->SetHeader(nsHttp::Proxy_Authorization, val);
+ MOZ_ASSERT(NS_SUCCEEDED(rv));
+ }
+ if ((trans->Caps() & NS_HTTP_CONNECT_ONLY) &&
+ NS_SUCCEEDED(trans->RequestHead()->GetHeader(nsHttp::Upgrade, val))) {
+ // rfc7639 proposes using the ALPN header to indicate the protocol used
+ // in CONNECT when not used for TLS. The protocol is stored in Upgrade.
+ // We have to copy this header here since a new HEAD request is created
+ // for the CONNECT.
+ rv = request->SetHeader("ALPN"_ns, val);
+ MOZ_ASSERT(NS_SUCCEEDED(rv));
+ }
+
+ result.Truncate();
+ request->Flatten(result, false);
+
+ if (LOG1_ENABLED()) {
+ LOG(("nsHttpConnection::MakeConnectString for transaction=%p h2ws=%d[",
+ trans->QueryHttpTransaction(), h2ws));
+ LogHeaders(result.BeginReading());
+ LOG(("]"));
+ }
+
+ result.AppendLiteral("\r\n");
+ return NS_OK;
+}
+
+nsresult nsHttpConnection::StartShortLivedTCPKeepalives() {
+ if (mUsingSpdyVersion != SpdyVersion::NONE) {
+ return NS_OK;
+ }
+ MOZ_ASSERT(mSocketTransport);
+ if (!mSocketTransport) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ nsresult rv = NS_OK;
+ int32_t idleTimeS = -1;
+ int32_t retryIntervalS = -1;
+ if (gHttpHandler->TCPKeepaliveEnabledForShortLivedConns()) {
+ // Set the idle time.
+ idleTimeS = gHttpHandler->GetTCPKeepaliveShortLivedIdleTime();
+ LOG(
+ ("nsHttpConnection::StartShortLivedTCPKeepalives[%p] "
+ "idle time[%ds].",
+ this, idleTimeS));
+
+ retryIntervalS = std::max<int32_t>((int32_t)PR_IntervalToSeconds(mRtt), 1);
+ rv = mSocketTransport->SetKeepaliveVals(idleTimeS, retryIntervalS);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ rv = mSocketTransport->SetKeepaliveEnabled(true);
+ mTCPKeepaliveConfig = kTCPKeepaliveShortLivedConfig;
+ } else {
+ rv = mSocketTransport->SetKeepaliveEnabled(false);
+ mTCPKeepaliveConfig = kTCPKeepaliveDisabled;
+ }
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+
+ // Start a timer to move to long-lived keepalive config.
+ if (!mTCPKeepaliveTransitionTimer) {
+ mTCPKeepaliveTransitionTimer = NS_NewTimer();
+ }
+
+ if (mTCPKeepaliveTransitionTimer) {
+ int32_t time = gHttpHandler->GetTCPKeepaliveShortLivedTime();
+
+ // Adjust |time| to ensure a full set of keepalive probes can be sent
+ // at the end of the short-lived phase.
+ if (gHttpHandler->TCPKeepaliveEnabledForShortLivedConns()) {
+ if (NS_WARN_IF(!gSocketTransportService)) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ int32_t probeCount = -1;
+ rv = gSocketTransportService->GetKeepaliveProbeCount(&probeCount);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return rv;
+ }
+ if (NS_WARN_IF(probeCount <= 0)) {
+ return NS_ERROR_UNEXPECTED;
+ }
+ // Add time for final keepalive probes, and 2 seconds for a buffer.
+ time += ((probeCount)*retryIntervalS) - (time % idleTimeS) + 2;
+ }
+ mTCPKeepaliveTransitionTimer->InitWithNamedFuncCallback(
+ nsHttpConnection::UpdateTCPKeepalive, this, (uint32_t)time * 1000,
+ nsITimer::TYPE_ONE_SHOT,
+ "net::nsHttpConnection::StartShortLivedTCPKeepalives");
+ } else {
+ NS_WARNING(
+ "nsHttpConnection::StartShortLivedTCPKeepalives failed to "
+ "create timer.");
+ }
+
+ return NS_OK;
+}
+
+nsresult nsHttpConnection::StartLongLivedTCPKeepalives() {
+ MOZ_ASSERT(mUsingSpdyVersion == SpdyVersion::NONE,
+ "Don't use TCP Keepalive with SPDY!");
+ if (NS_WARN_IF(mUsingSpdyVersion != SpdyVersion::NONE)) {
+ return NS_OK;
+ }
+ MOZ_ASSERT(mSocketTransport);
+ if (!mSocketTransport) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ nsresult rv = NS_OK;
+ if (gHttpHandler->TCPKeepaliveEnabledForLongLivedConns()) {
+ // Increase the idle time.
+ int32_t idleTimeS = gHttpHandler->GetTCPKeepaliveLongLivedIdleTime();
+ LOG(("nsHttpConnection::StartLongLivedTCPKeepalives[%p] idle time[%ds]",
+ this, idleTimeS));
+
+ int32_t retryIntervalS =
+ std::max<int32_t>((int32_t)PR_IntervalToSeconds(mRtt), 1);
+ rv = mSocketTransport->SetKeepaliveVals(idleTimeS, retryIntervalS);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+
+ // Ensure keepalive is enabled, if current status is disabled.
+ if (mTCPKeepaliveConfig == kTCPKeepaliveDisabled) {
+ rv = mSocketTransport->SetKeepaliveEnabled(true);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ }
+ mTCPKeepaliveConfig = kTCPKeepaliveLongLivedConfig;
+ } else {
+ rv = mSocketTransport->SetKeepaliveEnabled(false);
+ mTCPKeepaliveConfig = kTCPKeepaliveDisabled;
+ }
+
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ return NS_OK;
+}
+
+nsresult nsHttpConnection::DisableTCPKeepalives() {
+ MOZ_ASSERT(mSocketTransport);
+ if (!mSocketTransport) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ LOG(("nsHttpConnection::DisableTCPKeepalives [%p]", this));
+ if (mTCPKeepaliveConfig != kTCPKeepaliveDisabled) {
+ nsresult rv = mSocketTransport->SetKeepaliveEnabled(false);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ mTCPKeepaliveConfig = kTCPKeepaliveDisabled;
+ }
+ if (mTCPKeepaliveTransitionTimer) {
+ mTCPKeepaliveTransitionTimer->Cancel();
+ mTCPKeepaliveTransitionTimer = nullptr;
+ }
+ return NS_OK;
+}
+
+//-----------------------------------------------------------------------------
+// nsHttpConnection::nsISupports
+//-----------------------------------------------------------------------------
+
+NS_IMPL_ADDREF(nsHttpConnection)
+NS_IMPL_RELEASE(nsHttpConnection)
+
+NS_INTERFACE_MAP_BEGIN(nsHttpConnection)
+ NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
+ NS_INTERFACE_MAP_ENTRY(nsIInputStreamCallback)
+ NS_INTERFACE_MAP_ENTRY(nsIOutputStreamCallback)
+ NS_INTERFACE_MAP_ENTRY(nsITransportEventSink)
+ NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
+ NS_INTERFACE_MAP_ENTRY(HttpConnectionBase)
+ NS_INTERFACE_MAP_ENTRY_CONCRETE(nsHttpConnection)
+NS_INTERFACE_MAP_END
+
+//-----------------------------------------------------------------------------
+// nsHttpConnection::nsIInputStreamCallback
+//-----------------------------------------------------------------------------
+
+// called on the socket transport thread
+NS_IMETHODIMP
+nsHttpConnection::OnInputStreamReady(nsIAsyncInputStream* in) {
+ MOZ_ASSERT(in == mSocketIn, "unexpected stream");
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+
+ if (mIdleMonitoring) {
+ MOZ_ASSERT(!mTransaction, "Idle Input Event While Active");
+
+ // The only read event that is protocol compliant for an idle connection
+ // is an EOF, which we check for with CanReuse(). If the data is
+ // something else then just ignore it and suspend checking for EOF -
+ // our normal timers or protocol stack are the place to deal with
+ // any exception logic.
+
+ if (!CanReuse()) {
+ LOG(("Server initiated close of idle conn %p\n", this));
+ Unused << gHttpHandler->ConnMgr()->CloseIdleConnection(this);
+ return NS_OK;
+ }
+
+ LOG(("Input data on idle conn %p, but not closing yet\n", this));
+ return NS_OK;
+ }
+
+ // if the transaction was dropped...
+ if (!mTransaction) {
+ LOG((" no transaction; ignoring event\n"));
+ return NS_OK;
+ }
+
+ nsresult rv = OnSocketReadable();
+ if (rv == NS_BASE_STREAM_WOULD_BLOCK) {
+ return rv;
+ }
+
+ if (NS_FAILED(rv)) {
+ CloseTransaction(mTransaction, rv);
+ }
+
+ return NS_OK;
+}
+
+//-----------------------------------------------------------------------------
+// nsHttpConnection::nsIOutputStreamCallback
+//-----------------------------------------------------------------------------
+
+NS_IMETHODIMP
+nsHttpConnection::OnOutputStreamReady(nsIAsyncOutputStream* out) {
+ MOZ_ASSERT(OnSocketThread(), "not on socket thread");
+ MOZ_ASSERT(out == mSocketOut, "unexpected socket");
+ // if the transaction was dropped...
+ if (!mTransaction) {
+ LOG((" no transaction; ignoring event\n"));
+ return NS_OK;
+ }
+
+ nsresult rv = OnSocketWritable();
+ if (rv == NS_BASE_STREAM_WOULD_BLOCK) {
+ return NS_OK;
+ }
+
+ if (NS_FAILED(rv)) CloseTransaction(mTransaction, rv);
+
+ return NS_OK;
+}
+
+//-----------------------------------------------------------------------------
+// nsHttpConnection::nsITransportEventSink
+//-----------------------------------------------------------------------------
+
+NS_IMETHODIMP
+nsHttpConnection::OnTransportStatus(nsITransport* trans, nsresult status,
+ int64_t progress, int64_t progressMax) {
+ if (mTransaction) mTransaction->OnTransportStatus(trans, status, progress);
+ return NS_OK;
+}
+
+//-----------------------------------------------------------------------------
+// nsHttpConnection::nsIInterfaceRequestor
+//-----------------------------------------------------------------------------
+
+// not called on the socket transport thread
+NS_IMETHODIMP
+nsHttpConnection::GetInterface(const nsIID& iid, void** result) {
+ // NOTE: This function is only called on the UI thread via sync proxy from
+ // the socket transport thread. If that weren't the case, then we'd
+ // have to worry about the possibility of mTransaction going away
+ // part-way through this function call. See CloseTransaction.
+
+ // NOTE - there is a bug here, the call to getinterface is proxied off the
+ // nss thread, not the ui thread as the above comment says. So there is
+ // indeed a chance of mTransaction going away. bug 615342
+
+ MOZ_ASSERT(!OnSocketThread(), "on socket thread");
+
+ nsCOMPtr<nsIInterfaceRequestor> callbacks;
+ {
+ MutexAutoLock lock(mCallbacksLock);
+ callbacks = mCallbacks;
+ }
+ if (callbacks) return callbacks->GetInterface(iid, result);
+ return NS_ERROR_NO_INTERFACE;
+}
+
+void nsHttpConnection::CheckForTraffic(bool check) {
+ if (check) {
+ LOG((" CheckForTraffic conn %p\n", this));
+ if (mSpdySession) {
+ if (PR_IntervalToMilliseconds(IdleTime()) >= 500) {
+ // Send a ping to verify it is still alive if it has been idle
+ // more than half a second, the network changed events are
+ // rate-limited to one per 1000 ms.
+ LOG((" SendPing\n"));
+ mSpdySession->SendPing();
+ } else {
+ LOG((" SendPing skipped due to network activity\n"));
+ }
+ } else {
+ // If not SPDY, Store snapshot amount of data right now
+ mTrafficCount = mTotalBytesWritten + mTotalBytesRead;
+ mTrafficStamp = true;
+ }
+ } else {
+ // mark it as not checked
+ mTrafficStamp = false;
+ }
+}
+
+void nsHttpConnection::SetEvent(nsresult aStatus) {
+ switch (aStatus) {
+ case NS_NET_STATUS_RESOLVING_HOST:
+ mBootstrappedTimings.domainLookupStart = TimeStamp::Now();
+ break;
+ case NS_NET_STATUS_RESOLVED_HOST:
+ mBootstrappedTimings.domainLookupEnd = TimeStamp::Now();
+ break;
+ case NS_NET_STATUS_CONNECTING_TO:
+ mBootstrappedTimings.connectStart = TimeStamp::Now();
+ break;
+ case NS_NET_STATUS_CONNECTED_TO: {
+ TimeStamp tnow = TimeStamp::Now();
+ mBootstrappedTimings.tcpConnectEnd = tnow;
+ mBootstrappedTimings.connectEnd = tnow;
+ mBootstrappedTimings.secureConnectionStart = tnow;
+ break;
+ }
+ case NS_NET_STATUS_TLS_HANDSHAKE_STARTING:
+ mBootstrappedTimings.secureConnectionStart = TimeStamp::Now();
+ break;
+ case NS_NET_STATUS_TLS_HANDSHAKE_ENDED:
+ mBootstrappedTimings.connectEnd = TimeStamp::Now();
+ break;
+ default:
+ break;
+ }
+}
+
+bool nsHttpConnection::NoClientCertAuth() const {
+ if (!mSocketTransport) {
+ return false;
+ }
+
+ nsCOMPtr<nsITLSSocketControl> tlsSocketControl;
+ mSocketTransport->GetTlsSocketControl(getter_AddRefs(tlsSocketControl));
+ if (!tlsSocketControl) {
+ return false;
+ }
+
+ return !tlsSocketControl->GetClientCertSent();
+}
+
+WebSocketSupport nsHttpConnection::GetWebSocketSupport() {
+ LOG3(("nsHttpConnection::GetWebSocketSupport"));
+ if (!UsingSpdy()) {
+ return WebSocketSupport::SUPPORTED;
+ }
+ LOG3(("nsHttpConnection::GetWebSocketSupport checking spdy session"));
+ if (mSpdySession) {
+ return mSpdySession->GetWebSocketSupport();
+ }
+
+ return WebSocketSupport::NO_SUPPORT;
+}
+
+bool nsHttpConnection::IsProxyConnectInProgress() {
+ return mState == SETTING_UP_TUNNEL;
+}
+
+bool nsHttpConnection::LastTransactionExpectedNoContent() {
+ return mLastTransactionExpectedNoContent;
+}
+
+void nsHttpConnection::SetLastTransactionExpectedNoContent(bool val) {
+ mLastTransactionExpectedNoContent = val;
+}
+
+bool nsHttpConnection::IsPersistent() { return IsKeepAlive() && !mDontReuse; }
+
+nsAHttpTransaction* nsHttpConnection::Transaction() { return mTransaction; }
+
+nsresult nsHttpConnection::GetSelfAddr(NetAddr* addr) {
+ if (!mSocketTransport) {
+ return NS_ERROR_FAILURE;
+ }
+ return mSocketTransport->GetSelfAddr(addr);
+}
+
+nsresult nsHttpConnection::GetPeerAddr(NetAddr* addr) {
+ if (!mSocketTransport) {
+ return NS_ERROR_FAILURE;
+ }
+ return mSocketTransport->GetPeerAddr(addr);
+}
+
+bool nsHttpConnection::ResolvedByTRR() {
+ bool val = false;
+ if (mSocketTransport) {
+ mSocketTransport->ResolvedByTRR(&val);
+ }
+ return val;
+}
+
+nsIRequest::TRRMode nsHttpConnection::EffectiveTRRMode() {
+ nsIRequest::TRRMode mode = nsIRequest::TRR_DEFAULT_MODE;
+ if (mSocketTransport) {
+ mSocketTransport->GetEffectiveTRRMode(&mode);
+ }
+ return mode;
+}
+
+TRRSkippedReason nsHttpConnection::TRRSkipReason() {
+ TRRSkippedReason reason = nsITRRSkipReason::TRR_UNSET;
+ if (mSocketTransport) {
+ mSocketTransport->GetTrrSkipReason(&reason);
+ }
+ return reason;
+}
+
+bool nsHttpConnection::GetEchConfigUsed() {
+ bool val = false;
+ if (mSocketTransport) {
+ mSocketTransport->GetEchConfigUsed(&val);
+ }
+ return val;
+}
+
+void nsHttpConnection::HandshakeDoneInternal() {
+ LOG(("nsHttpConnection::HandshakeDoneInternal [this=%p]\n", this));
+ if (mTlsHandshaker->NPNComplete()) {
+ return;
+ }
+
+ ChangeConnectionState(ConnectionState::TRANSFERING);
+
+ nsCOMPtr<nsITLSSocketControl> tlsSocketControl;
+ GetTLSSocketControl(getter_AddRefs(tlsSocketControl));
+ if (!tlsSocketControl) {
+ mTlsHandshaker->FinishNPNSetup(false, false);
+ return;
+ }
+
+ nsCOMPtr<nsITransportSecurityInfo> securityInfo;
+ if (NS_FAILED(
+ tlsSocketControl->GetSecurityInfo(getter_AddRefs(securityInfo)))) {
+ mTlsHandshaker->FinishNPNSetup(false, false);
+ return;
+ }
+ if (!securityInfo) {
+ mTlsHandshaker->FinishNPNSetup(false, false);
+ return;
+ }
+
+ nsAutoCString negotiatedNPN;
+ DebugOnly<nsresult> rvDebug = securityInfo->GetNegotiatedNPN(negotiatedNPN);
+ MOZ_ASSERT(NS_SUCCEEDED(rvDebug));
+
+ bool earlyDataAccepted = false;
+ if (mTlsHandshaker->EarlyDataUsed()) {
+ // Check if early data has been accepted.
+ nsresult rvEarlyData =
+ tlsSocketControl->GetEarlyDataAccepted(&earlyDataAccepted);
+ LOG(
+ ("nsHttpConnection::HandshakeDone [this=%p] - early data "
+ "that was sent during 0RTT %s been accepted [rv=%" PRIx32 "].",
+ this, earlyDataAccepted ? "has" : "has not",
+ static_cast<uint32_t>(rvEarlyData)));
+
+ if (NS_FAILED(rvEarlyData) ||
+ (mTransaction &&
+ NS_FAILED(mTransaction->Finish0RTT(
+ !earlyDataAccepted,
+ negotiatedNPN != mTlsHandshaker->EarlyNegotiatedALPN())))) {
+ LOG(
+ ("nsHttpConection::HandshakeDone [this=%p] closing transaction "
+ "%p",
+ this, mTransaction.get()));
+ if (mTransaction) {
+ mTransaction->Close(NS_ERROR_NET_RESET);
+ }
+ mTlsHandshaker->FinishNPNSetup(false, true);
+ return;
+ }
+ if (mDid0RTTSpdy &&
+ (negotiatedNPN != mTlsHandshaker->EarlyNegotiatedALPN())) {
+ Reset0RttForSpdy();
+ }
+ }
+
+ if (mTlsHandshaker->EarlyDataAvailable() && !earlyDataAccepted) {
+ // When the early-data were used but not accepted, we need to start
+ // from the begining here and start writing the request again.
+ // The same is true if 0RTT was available but not used.
+ if (mSocketIn) {
+ mSocketIn->AsyncWait(nullptr, 0, 0, nullptr);
+ }
+ Unused << ResumeSend();
+ }
+
+ int16_t tlsVersion;
+ tlsSocketControl->GetSSLVersionUsed(&tlsVersion);
+ mConnInfo->SetLessThanTls13(
+ (tlsVersion < nsITLSSocketControl::TLS_VERSION_1_3) &&
+ (tlsVersion != nsITLSSocketControl::SSL_VERSION_UNKNOWN));
+
+ mTlsHandshaker->EarlyDataTelemetry(tlsVersion, earlyDataAccepted,
+ mContentBytesWritten0RTT);
+ mTlsHandshaker->EarlyDataDone();
+
+ if (!earlyDataAccepted) {
+ LOG(
+ ("nsHttpConnection::HandshakeDone [this=%p] early data not "
+ "accepted or early data were not used",
+ this));
+
+ const SpdyInformation* info = gHttpHandler->SpdyInfo();
+ if (negotiatedNPN.Equals(info->VersionString)) {
+ if (mTransaction) {
+ StartSpdy(tlsSocketControl, info->Version);
+ } else {
+ LOG(
+ ("nsHttpConnection::HandshakeDone [this=%p] set "
+ "mContinueHandshakeDone",
+ this));
+ RefPtr<nsHttpConnection> self = this;
+ mContinueHandshakeDone = [self = RefPtr{this},
+ tlsSocketControl(tlsSocketControl),
+ info(info->Version)]() {
+ LOG(("nsHttpConnection do mContinueHandshakeDone [this=%p]",
+ self.get()));
+ self->StartSpdy(tlsSocketControl, info);
+ self->mTlsHandshaker->FinishNPNSetup(true, true);
+ };
+ return;
+ }
+ }
+ } else {
+ LOG(("nsHttpConnection::HandshakeDone [this=%p] - %" PRId64 " bytes "
+ "has been sent during 0RTT.",
+ this, mContentBytesWritten0RTT));
+ mContentBytesWritten = mContentBytesWritten0RTT;
+
+ if (mSpdySession) {
+ // We had already started 0RTT-spdy, now we need to fully set up
+ // spdy, since we know we're sticking with it.
+ LOG(
+ ("nsHttpConnection::HandshakeDone [this=%p] - finishing "
+ "StartSpdy for 0rtt spdy session %p",
+ this, mSpdySession.get()));
+ StartSpdy(tlsSocketControl, mSpdySession->SpdyVersion());
+ }
+ }
+
+ Telemetry::Accumulate(Telemetry::SPDY_NPN_CONNECT, UsingSpdy());
+
+ mTlsHandshaker->FinishNPNSetup(true, true);
+ Unused << ResumeSend();
+}
+
+void nsHttpConnection::SetTunnelSetupDone() {
+ MOZ_ASSERT(mProxyConnectStream);
+ MOZ_ASSERT(mState == HttpConnectionState::SETTING_UP_TUNNEL);
+
+ ChangeState(HttpConnectionState::REQUEST);
+ mProxyConnectStream = nullptr;
+}
+
+nsresult nsHttpConnection::CheckTunnelIsNeeded() {
+ switch (mState) {
+ case HttpConnectionState::UNINITIALIZED: {
+ // This is is called first time. Check if we need a tunnel.
+ if (!mTransaction->ConnectionInfo()->UsingConnect()) {
+ ChangeState(HttpConnectionState::REQUEST);
+ return NS_OK;
+ }
+ ChangeState(HttpConnectionState::SETTING_UP_TUNNEL);
+ }
+ [[fallthrough]];
+ case HttpConnectionState::SETTING_UP_TUNNEL: {
+ // When a nsHttpConnection is in this state that means that an
+ // authentication was needed and we are resending a CONNECT
+ // request. This request will include authentication headers.
+ nsresult rv = SetupProxyConnectStream();
+ if (NS_FAILED(rv)) {
+ ChangeState(HttpConnectionState::UNINITIALIZED);
+ }
+ return rv;
+ }
+ case HttpConnectionState::REQUEST:
+ return NS_OK;
+ }
+ return NS_OK;
+}
+
+nsresult nsHttpConnection::SetupProxyConnectStream() {
+ LOG(("nsHttpConnection::SetupStream\n"));
+ NS_ENSURE_TRUE(!mProxyConnectStream, NS_ERROR_ALREADY_INITIALIZED);
+ MOZ_ASSERT(mState == HttpConnectionState::SETTING_UP_TUNNEL);
+
+ nsAutoCString buf;
+ nsHttpRequestHead request;
+ nsresult rv = MakeConnectString(mTransaction, &request, buf,
+ mForWebSocket && mInSpdyTunnel,
+ mTransactionCaps & NS_HTTP_USE_RFP);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ rv = NS_NewCStringInputStream(getter_AddRefs(mProxyConnectStream),
+ std::move(buf));
+ return rv;
+}
+
+nsresult nsHttpConnection::ReadFromStream(nsIInputStream* input, void* closure,
+ const char* buf, uint32_t offset,
+ uint32_t count, uint32_t* countRead) {
+ // thunk for nsIInputStream instance
+ nsHttpConnection* conn = (nsHttpConnection*)closure;
+ return conn->OnReadSegment(buf, count, countRead);
+}
+
+nsresult nsHttpConnection::SendConnectRequest(void* closure,
+ uint32_t* transactionBytes) {
+ LOG((" writing CONNECT request stream\n"));
+ return mProxyConnectStream->ReadSegments(ReadFromStream, closure,
+ nsIOService::gDefaultSegmentSize,
+ transactionBytes);
+}
+
+} // namespace mozilla::net