| /* |
| * libjingle |
| * Copyright 2004--2005, 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, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef _CRICKET_P2P_BASE_P2PTRANSPORT_H_ |
| #define _CRICKET_P2P_BASE_P2PTRANSPORT_H_ |
| |
| #include "talk/p2p/base/transport.h" |
| |
| namespace cricket { |
| |
| class Candidate; |
| |
| // Xml names used to name this transport and create our elements |
| extern const std::string kNsP2pTransport; |
| extern const buzz::QName kQnP2pTransport; |
| extern const buzz::QName kQnP2pCandidate; |
| |
| class P2PTransport: public Transport { |
| public: |
| P2PTransport(SessionManager* session_manager); |
| virtual ~P2PTransport(); |
| |
| // Implements negotiation of the P2P protocol. |
| virtual buzz::XmlElement* CreateTransportOffer(); |
| virtual buzz::XmlElement* CreateTransportAnswer(); |
| virtual bool OnTransportOffer(const buzz::XmlElement* elem); |
| virtual bool OnTransportAnswer(const buzz::XmlElement* elem); |
| |
| // Forwards each candidate message to the appropriate channel. |
| virtual bool OnTransportMessage(const buzz::XmlElement* msg, |
| const buzz::XmlElement* stanza); |
| virtual bool OnTransportError(const buzz::XmlElement* session_msg, |
| const buzz::XmlElement* error); |
| |
| protected: |
| // Creates and destroys P2PTransportChannel. |
| virtual TransportChannelImpl* CreateTransportChannel(const std::string& name, const std::string &session_type); |
| virtual void DestroyTransportChannel(TransportChannelImpl* channel); |
| |
| // Sends a given set of channel messages, which each describe a candidate, |
| // to the other client as a single transport message. |
| void OnTransportChannelMessages( |
| const std::vector<buzz::XmlElement*>& candidates); |
| |
| private: |
| // Attempts to parse the given XML into a candidate. Returns true if the |
| // XML is valid. If not, we will signal an error. |
| bool ParseCandidate(const buzz::XmlElement* stanza, |
| const buzz::XmlElement* elem, |
| Candidate* candidate); |
| |
| // Generates a XML element describing the given candidate. |
| buzz::XmlElement* TranslateCandidate(const Candidate& c); |
| |
| friend class P2PTransportChannel; |
| |
| DISALLOW_EVIL_CONSTRUCTORS(P2PTransport); |
| }; |
| |
| } // namespace cricket |
| |
| #endif // _CRICKET_P2P_BASE_P2PTRANSPORT_H_ |