mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-02 15:15:23 +00:00
251 lines
9.5 KiB
C++
251 lines
9.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef mozilla_net_TLSFilterTransaction_h
|
|
#define mozilla_net_TLSFilterTransaction_h
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "mozilla/UniquePtr.h"
|
|
#include "nsAHttpTransaction.h"
|
|
#include "nsIAsyncInputStream.h"
|
|
#include "nsIAsyncOutputStream.h"
|
|
#include "nsISocketTransport.h"
|
|
#include "nsITimer.h"
|
|
#include "NullHttpTransaction.h"
|
|
#include "mozilla/TimeStamp.h"
|
|
#include "prio.h"
|
|
|
|
// a TLSFilterTransaction wraps another nsAHttpTransaction but
|
|
// applies a encode/decode filter of TLS onto the ReadSegments
|
|
// and WriteSegments data. It is not used for basic https://
|
|
// but it is used for supplemental TLS tunnels - such as those
|
|
// needed by CONNECT tunnels in HTTP/2 or even CONNECT tunnels when
|
|
// the underlying proxy connection is already running TLS
|
|
//
|
|
// HTTP/2 CONNECT tunnels cannot use pushed IO layers because of
|
|
// the multiplexing involved on the base stream. i.e. the base stream
|
|
// once it is decrypted may have parts that are encrypted with a
|
|
// variety of keys, or none at all
|
|
|
|
/* ************************************************************************
|
|
The input path of http over a spdy CONNECT tunnel once it is established as a stream
|
|
|
|
note the "real http transaction" can be either a http/1 transaction or another spdy session
|
|
inside the tunnel.
|
|
|
|
nsHttpConnection::OnInputStreamReady (real socket)
|
|
nsHttpConnection::OnSocketReadable()
|
|
SpdySession::WriteSegment()
|
|
SpdyStream::WriteSegment (tunnel stream)
|
|
SpdyConnectTransaction::WriteSegment
|
|
SpdyStream::OnWriteSegment(tunnel stream)
|
|
SpdySession::OnWriteSegment()
|
|
SpdySession::NetworkRead()
|
|
nsHttpConnection::OnWriteSegment (real socket)
|
|
realSocketIn->Read() return data from network
|
|
|
|
now pop the stack back up to SpdyConnectTransaction::WriteSegment, the data
|
|
that has been read is stored mInputData
|
|
|
|
SpdyConnectTransaction.mTunneledConn::OnInputStreamReady(mTunnelStreamIn)
|
|
SpdyConnectTransaction.mTunneledConn::OnSocketReadable()
|
|
TLSFilterTransaction::WriteSegment()
|
|
nsHttpTransaction::WriteSegment(real http transaction)
|
|
TLSFilterTransaction::OnWriteSegment() removes tls on way back up stack
|
|
SpdyConnectTransaction.mTunneledConn::OnWriteSegment()
|
|
SpdyConnectTransaction.mTunneledConn.mTunnelStreamIn->Read() // gets data from mInputData
|
|
|
|
The output path works similarly:
|
|
nsHttpConnection::OnOutputStreamReady (real socket)
|
|
nsHttpConnection::OnSocketWritable()
|
|
SpdySession::ReadSegments (locates tunnel)
|
|
SpdyStream::ReadSegments (tunnel stream)
|
|
SpdyConnectTransaction::ReadSegments()
|
|
SpdyConnectTransaction.mTunneledConn::OnOutputStreamReady (tunnel connection)
|
|
SpdyConnectTransaction.mTunneledConn::OnSocketWritable (tunnel connection)
|
|
TLSFilterTransaction::ReadSegment()
|
|
nsHttpTransaction::ReadSegment (real http transaction generates plaintext on way down)
|
|
TLSFilterTransaction::OnReadSegment (BUF and LEN gets encrypted here on way down)
|
|
SpdyConnectTransaction.mTunneledConn::OnReadSegment (BUF and LEN) (tunnel connection)
|
|
SpdyConnectTransaction.mTunneledConn.mTunnelStreamOut->Write(BUF, LEN) .. get stored in mOutputData
|
|
|
|
Now pop the stack back up to SpdyConnectTransaction::ReadSegment(), where it has
|
|
the encrypted text available in mOutputData
|
|
|
|
SpdyStream->OnReadSegment(BUF,LEN) from mOutputData. Tunnel stream
|
|
SpdySession->OnReadSegment() // encrypted data gets put in a data frame
|
|
nsHttpConnection->OnReadSegment()
|
|
realSocketOut->write() writes data to network
|
|
|
|
**************************************************************************/
|
|
|
|
struct PRSocketOptionData;
|
|
|
|
namespace mozilla { namespace net {
|
|
|
|
class nsHttpRequestHead;
|
|
class NullHttpTransaction;
|
|
class TLSFilterTransaction;
|
|
|
|
class NudgeTunnelCallback : public nsISupports
|
|
{
|
|
public:
|
|
virtual void OnTunnelNudged(TLSFilterTransaction *) = 0;
|
|
};
|
|
|
|
#define NS_DECL_NUDGETUNNELCALLBACK void OnTunnelNudged(TLSFilterTransaction *) override;
|
|
|
|
class TLSFilterTransaction final
|
|
: public nsAHttpTransaction
|
|
, public nsAHttpSegmentReader
|
|
, public nsAHttpSegmentWriter
|
|
, public nsITimerCallback
|
|
{
|
|
~TLSFilterTransaction();
|
|
public:
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
NS_DECL_NSAHTTPTRANSACTION
|
|
NS_DECL_NSAHTTPSEGMENTREADER
|
|
NS_DECL_NSAHTTPSEGMENTWRITER
|
|
NS_DECL_NSITIMERCALLBACK
|
|
|
|
TLSFilterTransaction(nsAHttpTransaction *aWrappedTransaction,
|
|
const char *tlsHost, int32_t tlsPort,
|
|
nsAHttpSegmentReader *reader,
|
|
nsAHttpSegmentWriter *writer);
|
|
|
|
const nsAHttpTransaction *Transaction() const { return mTransaction.get(); }
|
|
nsresult CommitToSegmentSize(uint32_t size, bool forceCommitment) override;
|
|
nsresult GetTransactionSecurityInfo(nsISupports **) override;
|
|
nsresult NudgeTunnel(NudgeTunnelCallback *callback);
|
|
nsresult SetProxiedTransaction(nsAHttpTransaction *aTrans);
|
|
void newIODriver(nsIAsyncInputStream *aSocketIn,
|
|
nsIAsyncOutputStream *aSocketOut,
|
|
nsIAsyncInputStream **outSocketIn,
|
|
nsIAsyncOutputStream **outSocketOut);
|
|
|
|
// nsAHttpTransaction overloads
|
|
nsHttpPipeline *QueryPipeline() override;
|
|
bool IsNullTransaction() override;
|
|
NullHttpTransaction *QueryNullTransaction() override;
|
|
nsHttpTransaction *QueryHttpTransaction() override;
|
|
SpdyConnectTransaction *QuerySpdyConnectTransaction() override;
|
|
|
|
private:
|
|
nsresult StartTimerCallback();
|
|
void Cleanup();
|
|
int32_t FilterOutput(const char *aBuf, int32_t aAmount);
|
|
int32_t FilterInput(char *aBuf, int32_t aAmount);
|
|
|
|
static PRStatus GetPeerName(PRFileDesc *fd, PRNetAddr*addr);
|
|
static PRStatus GetSocketOption(PRFileDesc *fd, PRSocketOptionData *data);
|
|
static PRStatus SetSocketOption(PRFileDesc *fd, const PRSocketOptionData *data);
|
|
static int32_t FilterWrite(PRFileDesc *fd, const void *buf, int32_t amount);
|
|
static int32_t FilterRead(PRFileDesc *fd, void *buf, int32_t amount);
|
|
static int32_t FilterSend(PRFileDesc *fd, const void *buf, int32_t amount, int flags,
|
|
PRIntervalTime timeout);
|
|
static int32_t FilterRecv(PRFileDesc *fd, void *buf, int32_t amount, int flags,
|
|
PRIntervalTime timeout);
|
|
static PRStatus FilterClose(PRFileDesc *fd);
|
|
|
|
private:
|
|
RefPtr<nsAHttpTransaction> mTransaction;
|
|
nsCOMPtr<nsISupports> mSecInfo;
|
|
nsCOMPtr<nsITimer> mTimer;
|
|
RefPtr<NudgeTunnelCallback> mNudgeCallback;
|
|
|
|
// buffered network output, after encryption
|
|
UniquePtr<char[]> mEncryptedText;
|
|
uint32_t mEncryptedTextUsed;
|
|
uint32_t mEncryptedTextSize;
|
|
|
|
PRFileDesc *mFD;
|
|
nsAHttpSegmentReader *mSegmentReader;
|
|
nsAHttpSegmentWriter *mSegmentWriter;
|
|
|
|
nsresult mFilterReadCode;
|
|
bool mForce;
|
|
bool mReadSegmentBlocked;
|
|
uint32_t mNudgeCounter;
|
|
};
|
|
|
|
class SocketTransportShim;
|
|
class InputStreamShim;
|
|
class OutputStreamShim;
|
|
class nsHttpConnection;
|
|
|
|
class SpdyConnectTransaction final : public NullHttpTransaction
|
|
{
|
|
public:
|
|
SpdyConnectTransaction(nsHttpConnectionInfo *ci,
|
|
nsIInterfaceRequestor *callbacks,
|
|
uint32_t caps,
|
|
nsHttpTransaction *trans,
|
|
nsAHttpConnection *session);
|
|
~SpdyConnectTransaction();
|
|
|
|
SpdyConnectTransaction *QuerySpdyConnectTransaction() override { return this; }
|
|
|
|
// A transaction 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();
|
|
void MapStreamToHttpConnection(nsISocketTransport *aTransport,
|
|
nsHttpConnectionInfo *aConnInfo);
|
|
|
|
nsresult ReadSegments(nsAHttpSegmentReader *reader,
|
|
uint32_t count, uint32_t *countRead) override final;
|
|
nsresult WriteSegments(nsAHttpSegmentWriter *writer,
|
|
uint32_t count, uint32_t *countWritten) override final;
|
|
nsHttpRequestHead *RequestHead() override final;
|
|
void Close(nsresult reason) override final;
|
|
|
|
// ConnectedReadyForInput() tests whether the spdy connect transaction is attached to
|
|
// an nsHttpConnection that can properly deal with flow control, etc..
|
|
bool ConnectedReadyForInput();
|
|
|
|
private:
|
|
friend class InputStreamShim;
|
|
friend class OutputStreamShim;
|
|
|
|
nsresult Flush(uint32_t count, uint32_t *countRead);
|
|
void CreateShimError(nsresult code);
|
|
|
|
nsCString mConnectString;
|
|
uint32_t mConnectStringOffset;
|
|
|
|
nsAHttpConnection *mSession;
|
|
nsAHttpSegmentReader *mSegmentReader;
|
|
|
|
UniquePtr<char[]> mInputData;
|
|
uint32_t mInputDataSize;
|
|
uint32_t mInputDataUsed;
|
|
uint32_t mInputDataOffset;
|
|
|
|
UniquePtr<char[]> mOutputData;
|
|
uint32_t mOutputDataSize;
|
|
uint32_t mOutputDataUsed;
|
|
uint32_t mOutputDataOffset;
|
|
|
|
bool mForcePlainText;
|
|
TimeStamp mTimestampSyn;
|
|
RefPtr<nsHttpConnectionInfo> mConnInfo;
|
|
|
|
// mTunneledConn, mTunnelTransport, mTunnelStreamIn, mTunnelStreamOut
|
|
// are the connectors to the "real" http connection. They are created
|
|
// together when the tunnel setup is complete and a static reference is held
|
|
// for the lifetime of the tunnel.
|
|
RefPtr<nsHttpConnection> mTunneledConn;
|
|
RefPtr<SocketTransportShim> mTunnelTransport;
|
|
RefPtr<InputStreamShim> mTunnelStreamIn;
|
|
RefPtr<OutputStreamShim> mTunnelStreamOut;
|
|
RefPtr<nsHttpTransaction> mDrivingTransaction;
|
|
};
|
|
|
|
} // namespace net
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_net_TLSFilterTransaction_h
|