remoting/jingle_glue/jingle_info_request.h

   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 #ifndef REMOTING_JINGLE_GLUE_JINGLE_INFO_REQUEST_H_
   6 #define REMOTING_JINGLE_GLUE_JINGLE_INFO_REQUEST_H_
   7
   8 #include <set>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/basictypes.h"
  13 #include "base/callback.h"
  14 #include "base/memory/scoped_ptr.h"
  15 #include "remoting/jingle_glue/iq_sender.h"
  16
  17 namespace buzz {
  18 class XmlElement;
  19 }  // namespace buzz
  20
  21 namespace talk_base {
  22 class SocketAddress;
  23 }  // namespace talk_base
  24
  25 namespace remoting {
  26
  27 class SignalStrategy;
  28
  29 // JingleInfoRequest handles requesting STUN/Relay information from
  30 // the Google Talk network. The query is made when Send() is
  31 // called. The callback given to Send() is called when response to the
  32 // request is received.
  33 //
  34 // This class is not threadsafe and should be used on the same thread it is
  35 // created on.
  36 class JingleInfoRequest {
  37  public:
  38   // Callback to receive the Jingle configuration settings. All fields are empty
  39   // if the request has timed out.
  40   typedef base::Callback<void(const std::string& relay_token,
  41                               const std::vector<std::string>& relay_servers,
  42                               const std::vector<talk_base::SocketAddress>&
  43                                   stun_servers)> OnJingleInfoCallback;
  44
  45   explicit JingleInfoRequest(SignalStrategy* signal_strategy);
  46   virtual ~JingleInfoRequest();
  47
  48   void Send(const OnJingleInfoCallback& callback);
  49
  50  private:
  51   struct PendingDnsRequest;
  52
  53   void OnResponse(IqRequest* request, const buzz::XmlElement* stanza);
  54
  55   IqSender iq_sender_;
  56   scoped_ptr<IqRequest> request_;
  57   OnJingleInfoCallback on_jingle_info_cb_;
  58
  59   DISALLOW_COPY_AND_ASSIGN(JingleInfoRequest);
  60 };
  61
  62 }  // namespace remoting
  63
  64 #endif  // REMOTING_JINGLE_GLUE_JINGLE_INFO_REQUEST_H_