1 /* 2 * libjingle 3 * Copyright 2004--2005, Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <string> 29 #include <vector> 30 #include "talk/p2p/base/constants.h" 31 #include "talk/p2p/base/parsing.h" 32 #include "talk/p2p/base/rawtransport.h" 33 #include "talk/p2p/base/rawtransportchannel.h" 34 #include "talk/p2p/base/sessionmanager.h" 35 #include "webrtc/libjingle/xmllite/qname.h" 36 #include "webrtc/libjingle/xmllite/xmlelement.h" 37 #include "talk/xmpp/constants.h" 38 #include "webrtc/base/common.h" 39 40 #if defined(FEATURE_ENABLE_PSTN) 41 namespace cricket { 42 43 RawTransport::RawTransport(rtc::Thread* signaling_thread, 44 rtc::Thread* worker_thread, 45 const std::string& content_name, 46 PortAllocator* allocator) 47 : Transport(signaling_thread, worker_thread, 48 content_name, NS_GINGLE_RAW, allocator) { 49 } 50 51 RawTransport::~RawTransport() { 52 DestroyAllChannels(); 53 } 54 55 bool RawTransport::ParseCandidates(SignalingProtocol protocol, 56 const buzz::XmlElement* elem, 57 const CandidateTranslator* translator, 58 Candidates* candidates, 59 ParseError* error) { 60 for (const buzz::XmlElement* cand_elem = elem->FirstElement(); 61 cand_elem != NULL; 62 cand_elem = cand_elem->NextElement()) { 63 if (cand_elem->Name() == QN_GINGLE_RAW_CHANNEL) { 64 if (!cand_elem->HasAttr(buzz::QN_NAME)) { 65 return BadParse("no channel name given", error); 66 } 67 if (type() != cand_elem->Attr(buzz::QN_NAME)) { 68 return BadParse("channel named does not exist", error); 69 } 70 rtc::SocketAddress addr; 71 if (!ParseRawAddress(cand_elem, &addr, error)) 72 return false; 73 74 Candidate candidate; 75 candidate.set_component(1); 76 candidate.set_address(addr); 77 candidates->push_back(candidate); 78 } 79 } 80 return true; 81 } 82 83 bool RawTransport::WriteCandidates(SignalingProtocol protocol, 84 const Candidates& candidates, 85 const CandidateTranslator* translator, 86 XmlElements* candidate_elems, 87 WriteError* error) { 88 for (std::vector<Candidate>::const_iterator 89 cand = candidates.begin(); 90 cand != candidates.end(); 91 ++cand) { 92 ASSERT(cand->component() == 1); 93 ASSERT(cand->protocol() == "udp"); 94 rtc::SocketAddress addr = cand->address(); 95 96 buzz::XmlElement* elem = new buzz::XmlElement(QN_GINGLE_RAW_CHANNEL); 97 elem->SetAttr(buzz::QN_NAME, type()); 98 elem->SetAttr(QN_ADDRESS, addr.ipaddr().ToString()); 99 elem->SetAttr(QN_PORT, addr.PortAsString()); 100 candidate_elems->push_back(elem); 101 } 102 return true; 103 } 104 105 bool RawTransport::ParseRawAddress(const buzz::XmlElement* elem, 106 rtc::SocketAddress* addr, 107 ParseError* error) { 108 // Make sure the required attributes exist 109 if (!elem->HasAttr(QN_ADDRESS) || 110 !elem->HasAttr(QN_PORT)) { 111 return BadParse("channel missing required attribute", error); 112 } 113 114 // Parse the address. 115 if (!ParseAddress(elem, QN_ADDRESS, QN_PORT, addr, error)) 116 return false; 117 118 return true; 119 } 120 121 TransportChannelImpl* RawTransport::CreateTransportChannel(int component) { 122 return new RawTransportChannel(content_name(), component, this, 123 worker_thread(), 124 port_allocator()); 125 } 126 127 void RawTransport::DestroyTransportChannel(TransportChannelImpl* channel) { 128 delete channel; 129 } 130 131 } // namespace cricket 132 #endif // defined(FEATURE_ENABLE_PSTN) 133