mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-19 08:15:31 +00:00
447 lines
16 KiB
C++
447 lines
16 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef nsHttpConnection_h__
|
|
#define nsHttpConnection_h__
|
|
|
|
#include "nsHttpConnectionInfo.h"
|
|
#include "nsHttpResponseHead.h"
|
|
#include "nsAHttpTransaction.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsAutoPtr.h"
|
|
#include "nsProxyRelease.h"
|
|
#include "prinrval.h"
|
|
#include "TunnelUtils.h"
|
|
#include "mozilla/Mutex.h"
|
|
#include "ARefBase.h"
|
|
#include "TimingStruct.h"
|
|
|
|
#include "nsIAsyncInputStream.h"
|
|
#include "nsIAsyncOutputStream.h"
|
|
#include "nsIInterfaceRequestor.h"
|
|
#include "nsITimer.h"
|
|
|
|
class nsISocketTransport;
|
|
class nsISSLSocketControl;
|
|
|
|
namespace mozilla {
|
|
namespace net {
|
|
|
|
class nsHttpHandler;
|
|
class ASpdySession;
|
|
|
|
// 1dcc863e-db90-4652-a1fe-13fea0b54e46
|
|
#define NS_HTTPCONNECTION_IID \
|
|
{ \
|
|
0x1dcc863e, 0xdb90, 0x4652, { \
|
|
0xa1, 0xfe, 0x13, 0xfe, 0xa0, 0xb5, 0x4e, 0x46 \
|
|
} \
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// nsHttpConnection - represents a connection to a HTTP server (or proxy)
|
|
//
|
|
// NOTE: this objects lives on the socket thread only. it should not be
|
|
// accessed from any other thread.
|
|
//-----------------------------------------------------------------------------
|
|
|
|
class nsHttpConnection final : public nsAHttpSegmentReader,
|
|
public nsAHttpSegmentWriter,
|
|
public nsIInputStreamCallback,
|
|
public nsIOutputStreamCallback,
|
|
public nsITransportEventSink,
|
|
public nsIInterfaceRequestor,
|
|
public NudgeTunnelCallback,
|
|
public ARefBase,
|
|
public nsSupportsWeakReference {
|
|
private:
|
|
virtual ~nsHttpConnection();
|
|
|
|
public:
|
|
NS_DECLARE_STATIC_IID_ACCESSOR(NS_HTTPCONNECTION_IID)
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
NS_DECL_NSAHTTPSEGMENTREADER
|
|
NS_DECL_NSAHTTPSEGMENTWRITER
|
|
NS_DECL_NSIINPUTSTREAMCALLBACK
|
|
NS_DECL_NSIOUTPUTSTREAMCALLBACK
|
|
NS_DECL_NSITRANSPORTEVENTSINK
|
|
NS_DECL_NSIINTERFACEREQUESTOR
|
|
NS_DECL_NUDGETUNNELCALLBACK
|
|
|
|
nsHttpConnection();
|
|
|
|
// Initialize the connection:
|
|
// info - specifies the connection parameters.
|
|
// maxHangTime - limits the amount of time this connection can spend on a
|
|
// single transaction before it should no longer be kept
|
|
// alive. a value of 0xffff indicates no limit.
|
|
MOZ_MUST_USE nsresult Init(nsHttpConnectionInfo *info, uint16_t maxHangTime,
|
|
nsISocketTransport *, nsIAsyncInputStream *,
|
|
nsIAsyncOutputStream *, bool connectedTransport,
|
|
nsIInterfaceRequestor *, PRIntervalTime);
|
|
|
|
// Activate causes the given transaction to be processed on this
|
|
// connection. It fails if there is already an existing transaction unless
|
|
// a multiplexing protocol such as SPDY is being used
|
|
MOZ_MUST_USE nsresult Activate(nsAHttpTransaction *, uint32_t caps,
|
|
int32_t pri);
|
|
|
|
void SetFastOpen(bool aFastOpen);
|
|
// Close this connection and return the transaction. The transaction is
|
|
// restarted as well. This will only happened before connection is
|
|
// connected.
|
|
nsAHttpTransaction *CloseConnectionFastOpenTakesTooLongOrError(
|
|
bool aCloseocketTransport);
|
|
|
|
// Close the underlying socket transport.
|
|
void Close(nsresult reason, bool aIsShutdown = false);
|
|
|
|
//-------------------------------------------------------------------------
|
|
// XXX document when these are ok to call
|
|
|
|
bool IsKeepAlive() {
|
|
return (mUsingSpdyVersion != SpdyVersion::NONE) ||
|
|
(mKeepAliveMask && mKeepAlive);
|
|
}
|
|
bool CanReuse(); // can this connection be reused?
|
|
bool CanDirectlyActivate();
|
|
|
|
// Returns time in seconds for how long connection can be reused.
|
|
uint32_t TimeToLive();
|
|
|
|
void DontReuse();
|
|
|
|
bool IsProxyConnectInProgress() { return mProxyConnectInProgress; }
|
|
|
|
bool LastTransactionExpectedNoContent() {
|
|
return mLastTransactionExpectedNoContent;
|
|
}
|
|
|
|
void SetLastTransactionExpectedNoContent(bool val) {
|
|
mLastTransactionExpectedNoContent = val;
|
|
}
|
|
|
|
bool NeedSpdyTunnel() {
|
|
return mConnInfo->UsingHttpsProxy() && !mTLSFilter &&
|
|
mConnInfo->UsingConnect();
|
|
}
|
|
|
|
// A connection is forced into plaintext when it is intended to be used as a
|
|
// CONNECT tunnel but the setup fails. The plaintext only carries the CONNECT
|
|
// error.
|
|
void ForcePlainText() { mForcePlainText = true; }
|
|
|
|
bool IsUrgentStartPreferred() const {
|
|
return mUrgentStartPreferredKnown && mUrgentStartPreferred;
|
|
}
|
|
void SetUrgentStartPreferred(bool urgent);
|
|
|
|
nsISocketTransport *Transport() { return mSocketTransport; }
|
|
nsAHttpTransaction *Transaction() { return mTransaction; }
|
|
nsHttpConnectionInfo *ConnectionInfo() { return mConnInfo; }
|
|
|
|
// nsAHttpConnection compatible methods (non-virtual):
|
|
MOZ_MUST_USE nsresult OnHeadersAvailable(nsAHttpTransaction *,
|
|
nsHttpRequestHead *,
|
|
nsHttpResponseHead *, bool *reset);
|
|
void CloseTransaction(nsAHttpTransaction *, nsresult reason,
|
|
bool aIsShutdown = false);
|
|
void GetConnectionInfo(nsHttpConnectionInfo **ci) {
|
|
NS_IF_ADDREF(*ci = mConnInfo);
|
|
}
|
|
MOZ_MUST_USE nsresult TakeTransport(nsISocketTransport **,
|
|
nsIAsyncInputStream **,
|
|
nsIAsyncOutputStream **);
|
|
void GetSecurityInfo(nsISupports **);
|
|
bool IsPersistent() { return IsKeepAlive() && !mDontReuse; }
|
|
bool IsReused();
|
|
void SetIsReusedAfter(uint32_t afterMilliseconds);
|
|
MOZ_MUST_USE nsresult PushBack(const char *data, uint32_t length);
|
|
MOZ_MUST_USE nsresult ResumeSend();
|
|
MOZ_MUST_USE nsresult ResumeRecv();
|
|
int64_t MaxBytesRead() { return mMaxBytesRead; }
|
|
HttpVersion GetLastHttpResponseVersion() { return mLastHttpResponseVersion; }
|
|
|
|
friend class HttpConnectionForceIO;
|
|
MOZ_MUST_USE nsresult ForceSend();
|
|
MOZ_MUST_USE nsresult ForceRecv();
|
|
|
|
static MOZ_MUST_USE nsresult ReadFromStream(nsIInputStream *, void *,
|
|
const char *, uint32_t, uint32_t,
|
|
uint32_t *);
|
|
|
|
// When a persistent connection is in the connection manager idle
|
|
// connection pool, the nsHttpConnection still reads errors and hangups
|
|
// on the socket so that it can be proactively released if the server
|
|
// initiates a termination. Only call on socket thread.
|
|
void BeginIdleMonitoring();
|
|
void EndIdleMonitoring();
|
|
|
|
bool UsingSpdy() { return (mUsingSpdyVersion != SpdyVersion::NONE); }
|
|
SpdyVersion GetSpdyVersion() { return mUsingSpdyVersion; }
|
|
bool EverUsedSpdy() { return mEverUsedSpdy; }
|
|
PRIntervalTime Rtt() { return mRtt; }
|
|
|
|
// true when connection SSL NPN phase is complete and we know
|
|
// authoritatively whether UsingSpdy() or not.
|
|
bool ReportedNPN() { return mReportedSpdy; }
|
|
|
|
// When the connection is active this is called up to once every 1 second
|
|
// return the interval (in seconds) that the connection next wants to
|
|
// have this invoked. It might happen sooner depending on the needs of
|
|
// other connections.
|
|
uint32_t ReadTimeoutTick(PRIntervalTime now);
|
|
|
|
// For Active and Idle connections, this will be called when
|
|
// mTCPKeepaliveTransitionTimer fires, to check if the TCP keepalive config
|
|
// should move from short-lived (fast-detect) to long-lived.
|
|
static void UpdateTCPKeepalive(nsITimer *aTimer, void *aClosure);
|
|
|
|
// When the connection is active this is called every second
|
|
void ReadTimeoutTick();
|
|
|
|
int64_t BytesWritten() { return mTotalBytesWritten; } // includes TLS
|
|
int64_t ContentBytesWritten() { return mContentBytesWritten; }
|
|
|
|
void SetSecurityCallbacks(nsIInterfaceRequestor *aCallbacks);
|
|
void PrintDiagnostics(nsCString &log);
|
|
|
|
void SetTransactionCaps(uint32_t aCaps) { mTransactionCaps = aCaps; }
|
|
|
|
// IsExperienced() returns true when the connection has started at least one
|
|
// non null HTTP transaction of any version.
|
|
bool IsExperienced() { return mExperienced; }
|
|
|
|
static MOZ_MUST_USE nsresult MakeConnectString(nsAHttpTransaction *trans,
|
|
nsHttpRequestHead *request,
|
|
nsACString &result, bool h2ws);
|
|
void SetupSecondaryTLS(nsAHttpTransaction *aSpdyConnectTransaction = nullptr);
|
|
void SetInSpdyTunnel(bool arg);
|
|
|
|
// Check active connections for traffic (or not). SPDY connections send a
|
|
// ping, ordinary HTTP connections get some time to get traffic to be
|
|
// considered alive.
|
|
void CheckForTraffic(bool check);
|
|
|
|
// NoTraffic() returns true if there's been no traffic on the (non-spdy)
|
|
// connection since CheckForTraffic() was called.
|
|
bool NoTraffic() {
|
|
return mTrafficStamp &&
|
|
(mTrafficCount == (mTotalBytesWritten + mTotalBytesRead)) &&
|
|
!mFastOpen;
|
|
}
|
|
// override of nsAHttpConnection
|
|
virtual HttpVersion Version();
|
|
|
|
bool TestJoinConnection(const nsACString &hostname, int32_t port);
|
|
bool JoinConnection(const nsACString &hostname, int32_t port);
|
|
|
|
void SetFastOpenStatus(uint8_t tfoStatus);
|
|
uint8_t GetFastOpenStatus() { return mFastOpenStatus; }
|
|
|
|
void SetEvent(nsresult aStatus);
|
|
|
|
// Return true when the socket this connection is using has not been
|
|
// authenticated using a client certificate. Before SSL negotiation
|
|
// has finished this returns false.
|
|
bool NoClientCertAuth() const;
|
|
|
|
// HTTP/2 websocket support
|
|
bool CanAcceptWebsocket();
|
|
|
|
private:
|
|
// Value (set in mTCPKeepaliveConfig) indicates which set of prefs to use.
|
|
enum TCPKeepaliveConfig {
|
|
kTCPKeepaliveDisabled = 0,
|
|
kTCPKeepaliveShortLivedConfig,
|
|
kTCPKeepaliveLongLivedConfig
|
|
};
|
|
|
|
// called to cause the underlying socket to start speaking SSL
|
|
MOZ_MUST_USE nsresult InitSSLParams(bool connectingToProxy,
|
|
bool ProxyStartSSL);
|
|
MOZ_MUST_USE nsresult SetupNPNList(nsISSLSocketControl *ssl, uint32_t caps);
|
|
|
|
MOZ_MUST_USE nsresult OnTransactionDone(nsresult reason);
|
|
MOZ_MUST_USE nsresult OnSocketWritable();
|
|
MOZ_MUST_USE nsresult OnSocketReadable();
|
|
|
|
MOZ_MUST_USE nsresult SetupProxyConnect();
|
|
|
|
PRIntervalTime IdleTime();
|
|
bool IsAlive();
|
|
|
|
// Makes certain the SSL handshake is complete and NPN negotiation
|
|
// has had a chance to happen
|
|
MOZ_MUST_USE bool EnsureNPNComplete(nsresult &aOut0RTTWriteHandshakeValue,
|
|
uint32_t &aOut0RTTBytesWritten);
|
|
void SetupSSL();
|
|
|
|
// Start the Spdy transaction handler when NPN indicates spdy/*
|
|
void StartSpdy(nsISSLSocketControl *ssl, SpdyVersion versionLevel);
|
|
// Like the above, but do the bare minimum to do 0RTT data, so we can back
|
|
// it out, if necessary
|
|
void Start0RTTSpdy(SpdyVersion versionLevel);
|
|
|
|
// Helpers for Start*Spdy
|
|
nsresult TryTakeSubTransactions(nsTArray<RefPtr<nsAHttpTransaction> > &list);
|
|
nsresult MoveTransactionsToSpdy(nsresult status,
|
|
nsTArray<RefPtr<nsAHttpTransaction> > &list);
|
|
|
|
// Directly Add a transaction to an active connection for SPDY
|
|
MOZ_MUST_USE nsresult AddTransaction(nsAHttpTransaction *, int32_t);
|
|
|
|
// Used to set TCP keepalives for fast detection of dead connections during
|
|
// an initial period, and slower detection for long-lived connections.
|
|
MOZ_MUST_USE nsresult StartShortLivedTCPKeepalives();
|
|
MOZ_MUST_USE nsresult StartLongLivedTCPKeepalives();
|
|
MOZ_MUST_USE nsresult DisableTCPKeepalives();
|
|
|
|
private:
|
|
nsCOMPtr<nsISocketTransport> mSocketTransport;
|
|
nsCOMPtr<nsIAsyncInputStream> mSocketIn;
|
|
nsCOMPtr<nsIAsyncOutputStream> mSocketOut;
|
|
|
|
nsresult mSocketInCondition;
|
|
nsresult mSocketOutCondition;
|
|
|
|
nsCOMPtr<nsIInputStream> mProxyConnectStream;
|
|
nsCOMPtr<nsIInputStream> mRequestStream;
|
|
|
|
// mTransaction only points to the HTTP Transaction callbacks if the
|
|
// transaction is open, otherwise it is null.
|
|
RefPtr<nsAHttpTransaction> mTransaction;
|
|
RefPtr<TLSFilterTransaction> mTLSFilter;
|
|
nsWeakPtr mWeakTrans; // SpdyConnectTransaction *
|
|
|
|
RefPtr<nsHttpHandler> mHttpHandler; // keep gHttpHandler alive
|
|
|
|
Mutex mCallbacksLock;
|
|
nsMainThreadPtrHandle<nsIInterfaceRequestor> mCallbacks;
|
|
|
|
RefPtr<nsHttpConnectionInfo> mConnInfo;
|
|
|
|
PRIntervalTime mLastReadTime;
|
|
PRIntervalTime mLastWriteTime;
|
|
PRIntervalTime
|
|
mMaxHangTime; // max download time before dropping keep-alive status
|
|
PRIntervalTime mIdleTimeout; // value of keep-alive: timeout=
|
|
PRIntervalTime mConsiderReusedAfterInterval;
|
|
PRIntervalTime mConsiderReusedAfterEpoch;
|
|
int64_t mCurrentBytesRead; // data read per activation
|
|
int64_t mMaxBytesRead; // max read in 1 activation
|
|
int64_t mTotalBytesRead; // total data read
|
|
int64_t mTotalBytesWritten; // does not include CONNECT tunnel
|
|
int64_t mContentBytesWritten; // does not include CONNECT tunnel or TLS
|
|
|
|
RefPtr<nsIAsyncInputStream> mInputOverflow;
|
|
|
|
PRIntervalTime mRtt;
|
|
|
|
// Whether the first non-null transaction dispatched on this connection was
|
|
// urgent-start or not
|
|
bool mUrgentStartPreferred;
|
|
// A flag to prevent reset of mUrgentStartPreferred by subsequent transactions
|
|
bool mUrgentStartPreferredKnown;
|
|
bool mConnectedTransport;
|
|
bool mKeepAlive;
|
|
bool mKeepAliveMask;
|
|
bool mDontReuse;
|
|
bool mIsReused;
|
|
bool mCompletedProxyConnect;
|
|
bool mLastTransactionExpectedNoContent;
|
|
bool mIdleMonitoring;
|
|
bool mProxyConnectInProgress;
|
|
bool mExperienced;
|
|
bool mInSpdyTunnel;
|
|
bool mForcePlainText;
|
|
|
|
// A snapshot of current number of transfered bytes
|
|
int64_t mTrafficCount;
|
|
bool mTrafficStamp; // true then the above is set
|
|
|
|
// The number of <= HTTP/1.1 transactions performed on this connection. This
|
|
// excludes spdy transactions.
|
|
uint32_t mHttp1xTransactionCount;
|
|
|
|
// Keep-Alive: max="mRemainingConnectionUses" provides the number of future
|
|
// transactions (including the current one) that the server expects to allow
|
|
// on this persistent connection.
|
|
uint32_t mRemainingConnectionUses;
|
|
|
|
// SPDY related
|
|
bool mNPNComplete;
|
|
bool mSetupSSLCalled;
|
|
|
|
// version level in use, 0 if unused
|
|
SpdyVersion mUsingSpdyVersion;
|
|
|
|
RefPtr<ASpdySession> mSpdySession;
|
|
int32_t mPriority;
|
|
bool mReportedSpdy;
|
|
|
|
// mUsingSpdyVersion is cleared when mSpdySession is freed, this is permanent
|
|
bool mEverUsedSpdy;
|
|
|
|
// mLastHttpResponseVersion stores the last response's http version seen.
|
|
HttpVersion mLastHttpResponseVersion;
|
|
|
|
// The capabailities associated with the most recent transaction
|
|
uint32_t mTransactionCaps;
|
|
|
|
// If a large keepalive has been requested for any trans,
|
|
// scale the default by this factor
|
|
uint32_t mDefaultTimeoutFactor;
|
|
|
|
bool mResponseTimeoutEnabled;
|
|
|
|
// Flag to indicate connection is in inital keepalive period (fast detect).
|
|
uint32_t mTCPKeepaliveConfig;
|
|
nsCOMPtr<nsITimer> mTCPKeepaliveTransitionTimer;
|
|
|
|
private:
|
|
// For ForceSend()
|
|
static void ForceSendIO(nsITimer *aTimer, void *aClosure);
|
|
MOZ_MUST_USE nsresult MaybeForceSendIO();
|
|
bool mForceSendPending;
|
|
nsCOMPtr<nsITimer> mForceSendTimer;
|
|
|
|
// Helper variable for 0RTT handshake;
|
|
bool m0RTTChecked; // Possible 0RTT has been
|
|
// checked.
|
|
bool mWaitingFor0RTTResponse; // We have are
|
|
// sending 0RTT
|
|
// data and we
|
|
// are waiting
|
|
// for the end of
|
|
// the handsake.
|
|
int64_t mContentBytesWritten0RTT;
|
|
bool mEarlyDataNegotiated; // Only used for telemetry
|
|
nsCString mEarlyNegotiatedALPN;
|
|
bool mDid0RTTSpdy;
|
|
|
|
bool mFastOpen;
|
|
uint8_t mFastOpenStatus;
|
|
|
|
bool mForceSendDuringFastOpenPending;
|
|
bool mReceivedSocketWouldBlockDuringFastOpen;
|
|
bool mCheckNetworkStallsWithTFO;
|
|
PRIntervalTime mLastRequestBytesSentTime;
|
|
|
|
public:
|
|
void BootstrapTimings(TimingStruct times);
|
|
|
|
private:
|
|
TimingStruct mBootstrappedTimings;
|
|
bool mBootstrappedTimingsSet;
|
|
};
|
|
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(nsHttpConnection, NS_HTTPCONNECTION_IID)
|
|
|
|
} // namespace net
|
|
} // namespace mozilla
|
|
|
|
#endif // nsHttpConnection_h__
|