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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// This StreamSocket implementation is to be used with servers that
// accept connections on port 443 but don't really use SSL. For
// example, the Google Talk servers do this to bypass proxies. (The
// connection is upgraded to TLS as part of the XMPP negotiation, so
// security is preserved.) A "fake" SSL handshake is done immediately
// after connection to fool proxies into thinking that this is a real
// SSL connection.
//
// NOTE: This StreamSocket implementation does *not* do a real SSL
// handshake nor does it do any encryption!
#ifndef JINGLE_GLUE_FAKE_SSL_CLIENT_SOCKET_H_
#define JINGLE_GLUE_FAKE_SSL_CLIENT_SOCKET_H_
#include <cstddef>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/strings/string_piece.h"
#include "net/base/completion_callback.h"
#include "net/base/net_errors.h"
#include "net/socket/stream_socket.h"
namespace net {
class DrainableIOBuffer;
class SSLInfo;
} // namespace net
namespace jingle_glue {
class FakeSSLClientSocket : public net::StreamSocket {
public:
// Takes ownership of |transport_socket|.
explicit FakeSSLClientSocket(net::StreamSocket* transport_socket);
virtual ~FakeSSLClientSocket();
// Exposed for testing.
static base::StringPiece GetSslClientHello();
static base::StringPiece GetSslServerHello();
// net::StreamSocket implementation.
virtual int Read(net::IOBuffer* buf, int buf_len,
const net::CompletionCallback& callback) OVERRIDE;
virtual int Write(net::IOBuffer* buf, int buf_len,
const net::CompletionCallback& callback) OVERRIDE;
virtual bool SetReceiveBufferSize(int32 size) OVERRIDE;
virtual bool SetSendBufferSize(int32 size) OVERRIDE;
virtual int Connect(const net::CompletionCallback& callback) OVERRIDE;
virtual void Disconnect() OVERRIDE;
virtual bool IsConnected() const OVERRIDE;
virtual bool IsConnectedAndIdle() const OVERRIDE;
virtual int GetPeerAddress(net::IPEndPoint* address) const OVERRIDE;
virtual int GetLocalAddress(net::IPEndPoint* address) const OVERRIDE;
virtual const net::BoundNetLog& NetLog() const OVERRIDE;
virtual void SetSubresourceSpeculation() OVERRIDE;
virtual void SetOmniboxSpeculation() OVERRIDE;
virtual bool WasEverUsed() const OVERRIDE;
virtual bool UsingTCPFastOpen() const OVERRIDE;
virtual bool WasNpnNegotiated() const OVERRIDE;
virtual net::NextProto GetNegotiatedProtocol() const OVERRIDE;
virtual bool GetSSLInfo(net::SSLInfo* ssl_info) OVERRIDE;
private:
enum HandshakeState {
STATE_NONE,
STATE_CONNECT,
STATE_SEND_CLIENT_HELLO,
STATE_VERIFY_SERVER_HELLO,
};
int DoHandshakeLoop();
void RunUserConnectCallback(int status);
void DoHandshakeLoopWithUserConnectCallback();
int DoConnect();
void OnConnectDone(int status);
void ProcessConnectDone();
int DoSendClientHello();
void OnSendClientHelloDone(int status);
void ProcessSendClientHelloDone(size_t written);
int DoVerifyServerHello();
void OnVerifyServerHelloDone(int status);
net::Error ProcessVerifyServerHelloDone(size_t read);
scoped_ptr<net::StreamSocket> transport_socket_;
// During the handshake process, holds a value from HandshakeState.
// STATE_NONE otherwise.
HandshakeState next_handshake_state_;
// True iff we're connected and we've finished the handshake.
bool handshake_completed_;
// The callback passed to Connect().
net::CompletionCallback user_connect_callback_;
scoped_refptr<net::DrainableIOBuffer> write_buf_;
scoped_refptr<net::DrainableIOBuffer> read_buf_;
};
} // namespace jingle_glue
#endif // JINGLE_GLUE_FAKE_SSL_CLIENT_SOCKET_H_
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