SSLTCP (pseudo-SSL with fake handshake and unencrypted data) support for p2p socket.

content/browser/renderer_host/p2p/socket_host_tcp.h

 // Copyright (c) 2011 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_HOST_TCP_H_
 #define CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_HOST_TCP_H_
 
 #include <queue>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "content/browser/renderer_host/p2p/socket_host.h"
 #include "content/common/p2p_sockets.h"
 #include "net/base/completion_callback.h"
 #include "net/base/ip_endpoint.h"
 
 namespace net {
 class DrainableIOBuffer;
 class GrowableIOBuffer;
 class StreamSocket;
 }  // namespace net
 
 namespace content {
 
+class SsltcpHelper;
+
 class CONTENT_EXPORT P2PSocketHostTcpBase : public P2PSocketHost {
  public:
-  P2PSocketHostTcpBase(IPC::Sender* message_sender, int id);
+  P2PSocketHostTcpBase(IPC::Sender* message_sender, int id, bool ssl);

[Sergey Ulanov, 2013/06/18 20:01:26]

can you please define some enum (e.g. SslMode) with two values instead of using
bool here (it helps to make the calling code more readable).

[Ronghua Wu (Left Chromium), 2013/06/18 22:19:48]

Reused P2PSocketType.

   virtual ~P2PSocketHostTcpBase();
 
   bool InitAccepted(const net::IPEndPoint& remote_address,
                     net::StreamSocket* socket);
 
   // P2PSocketHost overrides.
   virtual bool Init(const net::IPEndPoint& local_address,
                     const net::IPEndPoint& remote_address) OVERRIDE;
   virtual void Send(const net::IPEndPoint& to,
                     const std::vector<char>& data) OVERRIDE;
   virtual P2PSocketHost* AcceptIncomingTcpConnection(
       const net::IPEndPoint& remote_address, int id) OVERRIDE;
 
  protected:
   // Derived classes will provide the implementation.
   virtual int ProcessInput(char* input, int input_len) = 0;
   virtual void DoSend(const net::IPEndPoint& to,
                       const std::vector<char>& data) = 0;
 
   void WriteOrQueue(scoped_refptr<net::DrainableIOBuffer>& buffer);
   void OnPacket(const std::vector<char>& data);
   void OnError();
 
+  int MaybeHandleSslHello(char** cur, int* cur_len, int* consumed);
+
+  scoped_ptr<SsltcpHelper> ssltcp_helper_;

[Sergey Ulanov, 2013/06/18 20:01:26]

does this need to be protected? I think P2PSocketHostTcp and
P2PSocketHostStunTcp shouldn't care if this is a SSL socket or not.

+
+  net::IPEndPoint remote_address_;

[Sergey Ulanov, 2013/06/18 20:01:26]

This still can private.

+
  private:
   friend class P2PSocketHostTcpTest;
   friend class P2PSocketHostTcpServerTest;
   friend class P2PSocketHostStunTcpTest;
 
   void DidCompleteRead(int result);
   void DoRead();
 
   void DoWrite();
   void HandleWriteResult(int result);
 
   // Callbacks for Connect(), Read() and Write().
   void OnConnected(int result);
   void OnRead(int result);
   void OnWritten(int result);
 
-  net::IPEndPoint remote_address_;
-
   scoped_ptr<net::StreamSocket> socket_;
   scoped_refptr<net::GrowableIOBuffer> read_buffer_;
   std::queue<scoped_refptr<net::DrainableIOBuffer> > write_queue_;
   scoped_refptr<net::DrainableIOBuffer> write_buffer_;
 
   bool write_pending_;
 
   bool connected_;
 
   DISALLOW_COPY_AND_ASSIGN(P2PSocketHostTcpBase);
 };
 
 class CONTENT_EXPORT P2PSocketHostTcp : public P2PSocketHostTcpBase {
  public:
-  P2PSocketHostTcp(IPC::Sender* message_sender, int id);
+  P2PSocketHostTcp(IPC::Sender* message_sender, int id, bool ssl);
   virtual ~P2PSocketHostTcp();
 
  protected:
   virtual int ProcessInput(char* input, int input_len) OVERRIDE;
   virtual void DoSend(const net::IPEndPoint& to,
                       const std::vector<char>& data) OVERRIDE;
  private:
   DISALLOW_COPY_AND_ASSIGN(P2PSocketHostTcp);
 };
 
 // P2PSocketHostStunTcp class provides the framing of STUN messages when used
 // with TURN. These messages will not have length at front of the packet and
 // are padded to multiple of 4 bytes.
 // Formatting of messages is defined in RFC5766.
 class CONTENT_EXPORT P2PSocketHostStunTcp : public P2PSocketHostTcpBase {
  public:
-  P2PSocketHostStunTcp(IPC::Sender* message_sender, int id);
+  P2PSocketHostStunTcp(IPC::Sender* message_sender, int id, bool ssl);
   virtual ~P2PSocketHostStunTcp();
 
  protected:
   virtual int ProcessInput(char* input, int input_len) OVERRIDE;
   virtual void DoSend(const net::IPEndPoint& to,
                       const std::vector<char>& data) OVERRIDE;
  private:
   int GetExpectedPacketSize(const char* data, int len, int* pad_bytes);
 
   DISALLOW_COPY_AND_ASSIGN(P2PSocketHostStunTcp);
 };
 
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_HOST_TCP_H_