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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "jingle/glue/utils.h"
      6 
      7 #include "base/json/json_reader.h"
      8 #include "base/json/json_writer.h"
      9 #include "base/logging.h"
     10 #include "base/memory/scoped_ptr.h"
     11 #include "base/values.h"
     12 #include "net/base/ip_endpoint.h"
     13 #include "net/base/net_util.h"
     14 #include "third_party/libjingle/source/talk/p2p/base/candidate.h"
     15 #include "third_party/webrtc/base/byteorder.h"
     16 #include "third_party/webrtc/base/socketaddress.h"
     17 
     18 namespace jingle_glue {
     19 
     20 bool IPEndPointToSocketAddress(const net::IPEndPoint& ip_endpoint,
     21                                rtc::SocketAddress* address) {
     22   sockaddr_storage addr;
     23   socklen_t len = sizeof(addr);
     24   return ip_endpoint.ToSockAddr(reinterpret_cast<sockaddr*>(&addr), &len) &&
     25       rtc::SocketAddressFromSockAddrStorage(addr, address);
     26 }
     27 
     28 bool SocketAddressToIPEndPoint(const rtc::SocketAddress& address,
     29                                net::IPEndPoint* ip_endpoint) {
     30   sockaddr_storage addr;
     31   int size = address.ToSockAddrStorage(&addr);
     32   return (size > 0) &&
     33       ip_endpoint->FromSockAddr(reinterpret_cast<sockaddr*>(&addr), size);
     34 }
     35 
     36 std::string SerializeP2PCandidate(const cricket::Candidate& candidate) {
     37   // TODO(sergeyu): Use SDP to format candidates?
     38   base::DictionaryValue value;
     39   value.SetString("ip", candidate.address().ipaddr().ToString());
     40   value.SetInteger("port", candidate.address().port());
     41   value.SetString("type", candidate.type());
     42   value.SetString("protocol", candidate.protocol());
     43   value.SetString("username", candidate.username());
     44   value.SetString("password", candidate.password());
     45   value.SetDouble("preference", candidate.preference());
     46   value.SetInteger("generation", candidate.generation());
     47 
     48   std::string result;
     49   base::JSONWriter::Write(&value, &result);
     50   return result;
     51 }
     52 
     53 bool DeserializeP2PCandidate(const std::string& candidate_str,
     54                              cricket::Candidate* candidate) {
     55   scoped_ptr<base::Value> value(
     56       base::JSONReader::Read(candidate_str, base::JSON_ALLOW_TRAILING_COMMAS));
     57   if (!value.get() || !value->IsType(base::Value::TYPE_DICTIONARY)) {
     58     return false;
     59   }
     60 
     61   base::DictionaryValue* dic_value =
     62       static_cast<base::DictionaryValue*>(value.get());
     63 
     64   std::string ip;
     65   int port = 0;
     66   std::string type;
     67   std::string protocol;
     68   std::string username;
     69   std::string password;
     70   double preference = 0;
     71   int generation = 0;
     72 
     73   if (!dic_value->GetString("ip", &ip) ||
     74       !dic_value->GetInteger("port", &port) ||
     75       !dic_value->GetString("type", &type) ||
     76       !dic_value->GetString("protocol", &protocol) ||
     77       !dic_value->GetString("username", &username) ||
     78       !dic_value->GetString("password", &password) ||
     79       !dic_value->GetDouble("preference", &preference) ||
     80       !dic_value->GetInteger("generation", &generation)) {
     81     return false;
     82   }
     83 
     84   candidate->set_address(rtc::SocketAddress(ip, port));
     85   candidate->set_type(type);
     86   candidate->set_protocol(protocol);
     87   candidate->set_username(username);
     88   candidate->set_password(password);
     89   candidate->set_preference(static_cast<float>(preference));
     90   candidate->set_generation(generation);
     91 
     92   return true;
     93 }
     94 
     95 }  // namespace jingle_glue
     96