talk/p2p/base/packetsocketfactory.h

/*
 * libjingle
 * Copyright 2011, Google Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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 */

#ifndef TALK_BASE_PACKETSOCKETFACTORY_H_
#define TALK_BASE_PACKETSOCKETFACTORY_H_

#include "talk/base/proxyinfo.h"

namespace talk_base {

class AsyncPacketSocket;
class AsyncResolverInterface;

class PacketSocketFactory {
 public:
  enum Options {
    OPT_SSLTCP = 0x01,  // Pseudo-TLS.
    OPT_TLS = 0x02,
    OPT_STUN = 0x04,
  };

  PacketSocketFactory() { }
  virtual ~PacketSocketFactory() { }

  virtual AsyncPacketSocket* CreateUdpSocket(
      const SocketAddress& address, int min_port, int max_port) = 0;
  virtual AsyncPacketSocket* CreateServerTcpSocket(
      const SocketAddress& local_address, int min_port, int max_port,
      int opts) = 0;

  // TODO: |proxy_info| and |user_agent| should be set
  // per-factory and not when socket is created.
  virtual AsyncPacketSocket* CreateClientTcpSocket(
      const SocketAddress& local_address, const SocketAddress& remote_address,
      const ProxyInfo& proxy_info, const std::string& user_agent, int opts) = 0;

  virtual AsyncResolverInterface* CreateAsyncResolver() = 0;

 private:
  DISALLOW_EVIL_CONSTRUCTORS(PacketSocketFactory);
};

}  // namespace talk_base

#endif  // TALK_BASE_PACKETSOCKETFACTORY_H_