Move P2P candidate serialization/deserialization to jingle/glue.

jingle/glue/utils.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "jingle/glue/utils.h"
 
+#include "base/json/json_reader.h"
+#include "base/json/json_writer.h"
 #include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/values.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_util.h"
 #include "third_party/libjingle/source/talk/base/byteorder.h"
 #include "third_party/libjingle/source/talk/base/socketaddress.h"
+#include "third_party/libjingle/source/talk/p2p/base/candidate.h"
 
 namespace jingle_glue {
 
 bool IPEndPointToSocketAddress(const net::IPEndPoint& address_chrome,
                                talk_base::SocketAddress* address_lj) {
   if (address_chrome.GetFamily() != AF_INET) {
     LOG(ERROR) << "Only IPv4 addresses are supported.";
     return false;
   }
   uint32 ip_as_int = talk_base::NetworkToHost32(
       *reinterpret_cast<const uint32*>(&address_chrome.address()[0]));
   *address_lj =  talk_base::SocketAddress(ip_as_int, address_chrome.port());
   return true;
 }
 
 bool SocketAddressToIPEndPoint(const talk_base::SocketAddress& address_lj,
                                net::IPEndPoint* address_chrome) {
   uint32 ip = talk_base::HostToNetwork32(address_lj.ip());
   net::IPAddressNumber address;
   address.resize(net::kIPv4AddressSize);
   memcpy(&address[0], &ip, net::kIPv4AddressSize);
   *address_chrome = net::IPEndPoint(address, address_lj.port());
   return true;
 }
 
+std::string SerializeP2PCandidate(const cricket::Candidate& candidate) {
+  // TODO(sergeyu): Use SDP to format candidates?
+  DictionaryValue value;
+  value.SetString("name", candidate.name());
+  value.SetString("ip", candidate.address().IPAsString());
+  value.SetInteger("port", candidate.address().port());
+  value.SetString("type", candidate.type());
+  value.SetString("protocol", candidate.protocol());
+  value.SetString("username", candidate.username());
+  value.SetString("password", candidate.password());
+  value.SetDouble("preference", candidate.preference());
+  value.SetInteger("generation", candidate.generation());
+
+  std::string result;
+  base::JSONWriter::Write(&value, false, &result);
+  return result;
+}
+
+bool DeserializeP2PCandidate(const std::string& candidate_str,
+                             cricket::Candidate* candidate) {
+  scoped_ptr<Value> value(base::JSONReader::Read(candidate_str, true));
+  if (!value.get() || !value->IsType(Value::TYPE_DICTIONARY)) {
+    return false;
+  }
+
+  DictionaryValue* dic_value = static_cast<DictionaryValue*>(value.get());
+
+  std::string name;
+  std::string ip;
+  int port;
+  std::string type;
+  std::string protocol;
+  std::string username;
+  std::string password;
+  double preference;
+  int generation;
+
+  if (!dic_value->GetString("name", &name) ||
+      !dic_value->GetString("ip", &ip) ||
+      !dic_value->GetInteger("port", &port) ||
+      !dic_value->GetString("type", &type) ||
+      !dic_value->GetString("protocol", &protocol) ||
+      !dic_value->GetString("username", &username) ||
+      !dic_value->GetString("password", &password) ||
+      !dic_value->GetDouble("preference", &preference) ||
+      !dic_value->GetInteger("generation", &generation)) {
+    return false;
+  }
+
+  candidate->set_name(name);
+  candidate->set_address(talk_base::SocketAddress(ip, port));
+  candidate->set_type(type);
+  candidate->set_protocol(protocol);
+  candidate->set_username(username);
+  candidate->set_password(password);
+  candidate->set_preference(static_cast<float>(preference));
+  candidate->set_generation(generation);
+
+  return true;
+}
+
 }  // namespace jingle_glue