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/*
* Copyright 2004 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_P2P_BASE_RELAYPORT_H_
#define WEBRTC_P2P_BASE_RELAYPORT_H_
#include <deque>
#include <string>
#include <utility>
#include <vector>
#include "webrtc/p2p/base/port.h"
#include "webrtc/p2p/base/stunrequest.h"
namespace cricket {
class RelayEntry;
class RelayConnection;
// Communicates using an allocated port on the relay server. For each
// remote candidate that we try to send data to a RelayEntry instance
// is created. The RelayEntry will try to reach the remote destination
// by connecting to all available server addresses in a pre defined
// order with a small delay in between. When a connection is
// successful all other connection attemts are aborted.
class RelayPort : public Port {
public:
typedef std::pair<rtc::Socket::Option, int> OptionValue;
// RelayPort doesn't yet do anything fancy in the ctor.
static RelayPort* Create(rtc::Thread* thread,
rtc::PacketSocketFactory* factory,
rtc::Network* network,
const rtc::IPAddress& ip,
uint16_t min_port,
uint16_t max_port,
const std::string& username,
const std::string& password) {
return new RelayPort(thread, factory, network, ip, min_port, max_port,
username, password);
}
virtual ~RelayPort();
void AddServerAddress(const ProtocolAddress& addr);
void AddExternalAddress(const ProtocolAddress& addr);
const std::vector<OptionValue>& options() const { return options_; }
bool HasMagicCookie(const char* data, size_t size);
virtual void PrepareAddress();
virtual Connection* CreateConnection(const Candidate& address,
CandidateOrigin origin);
virtual int SetOption(rtc::Socket::Option opt, int value);
virtual int GetOption(rtc::Socket::Option opt, int* value);
virtual int GetError();
const ProtocolAddress * ServerAddress(size_t index) const;
bool IsReady() { return ready_; }
// Used for testing.
sigslot::signal1<const ProtocolAddress*> SignalConnectFailure;
sigslot::signal1<const ProtocolAddress*> SignalSoftTimeout;
protected:
RelayPort(rtc::Thread* thread,
rtc::PacketSocketFactory* factory,
rtc::Network*,
const rtc::IPAddress& ip,
uint16_t min_port,
uint16_t max_port,
const std::string& username,
const std::string& password);
bool Init();
void SetReady();
virtual int SendTo(const void* data, size_t size,
const rtc::SocketAddress& addr,
const rtc::PacketOptions& options,
bool payload);
// Dispatches the given packet to the port or connection as appropriate.
void OnReadPacket(const char* data, size_t size,
const rtc::SocketAddress& remote_addr,
ProtocolType proto,
const rtc::PacketTime& packet_time);
private:
friend class RelayEntry;
std::deque<ProtocolAddress> server_addr_;
std::vector<ProtocolAddress> external_addr_;
bool ready_;
std::vector<RelayEntry*> entries_;
std::vector<OptionValue> options_;
int error_;
};
} // namespace cricket
#endif // WEBRTC_P2P_BASE_RELAYPORT_H_
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