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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 #ifndef CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_DISPATCHER_HOST_H_
      6 #define CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_DISPATCHER_HOST_H_
      7 
      8 #include <map>
      9 #include <set>
     10 #include <string>
     11 #include <vector>
     12 
     13 #include "content/browser/renderer_host/p2p/socket_host_throttler.h"
     14 #include "content/common/p2p_socket_type.h"
     15 #include "content/public/browser/browser_message_filter.h"
     16 #include "content/public/browser/browser_thread.h"
     17 #include "content/public/browser/render_process_host.h"
     18 #include "net/base/ip_endpoint.h"
     19 #include "net/base/network_change_notifier.h"
     20 
     21 namespace net {
     22 class URLRequestContextGetter;
     23 }
     24 
     25 namespace talk_base {
     26 struct PacketOptions;
     27 }
     28 
     29 namespace content {
     30 
     31 class P2PSocketHost;
     32 class ResourceContext;
     33 
     34 class P2PSocketDispatcherHost
     35     : public content::BrowserMessageFilter,
     36       public net::NetworkChangeNotifier::IPAddressObserver {
     37  public:
     38   P2PSocketDispatcherHost(content::ResourceContext* resource_context,
     39                           net::URLRequestContextGetter* url_context);
     40 
     41   // content::BrowserMessageFilter overrides.
     42   virtual void OnChannelClosing() OVERRIDE;
     43   virtual void OnDestruct() const OVERRIDE;
     44   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
     45 
     46   // net::NetworkChangeNotifier::IPAddressObserver interface.
     47   virtual void OnIPAddressChanged() OVERRIDE;
     48 
     49   // Starts the RTP packet header dumping. Must be called on the IO thread.
     50   void StartRtpDump(
     51       bool incoming,
     52       bool outgoing,
     53       const RenderProcessHost::WebRtcRtpPacketCallback& packet_callback);
     54 
     55   // Stops the RTP packet header dumping. Must be Called on the UI thread.
     56   void StopRtpDumpOnUIThread(bool incoming, bool outgoing);
     57 
     58  protected:
     59   virtual ~P2PSocketDispatcherHost();
     60 
     61  private:
     62   friend struct BrowserThread::DeleteOnThread<BrowserThread::IO>;
     63   friend class base::DeleteHelper<P2PSocketDispatcherHost>;
     64 
     65   typedef std::map<int, P2PSocketHost*> SocketsMap;
     66 
     67   class DnsRequest;
     68 
     69   P2PSocketHost* LookupSocket(int socket_id);
     70 
     71   // Handlers for the messages coming from the renderer.
     72   void OnStartNetworkNotifications();
     73   void OnStopNetworkNotifications();
     74   void OnGetHostAddress(const std::string& host_name,
     75                         int32 request_id);
     76 
     77   void OnCreateSocket(P2PSocketType type,
     78                       int socket_id,
     79                       const net::IPEndPoint& local_address,
     80                       const P2PHostAndIPEndPoint& remote_address);
     81   void OnAcceptIncomingTcpConnection(int listen_socket_id,
     82                                      const net::IPEndPoint& remote_address,
     83                                      int connected_socket_id);
     84   void OnSend(int socket_id,
     85               const net::IPEndPoint& socket_address,
     86               const std::vector<char>& data,
     87               const talk_base::PacketOptions& options,
     88               uint64 packet_id);
     89   void OnSetOption(int socket_id, P2PSocketOption option, int value);
     90   void OnDestroySocket(int socket_id);
     91 
     92   void DoGetNetworkList();
     93   void SendNetworkList(const net::NetworkInterfaceList& list);
     94 
     95   void OnAddressResolved(DnsRequest* request,
     96                          const net::IPAddressList& addresses);
     97 
     98   void StopRtpDumpOnIOThread(bool incoming, bool outgoing);
     99 
    100   content::ResourceContext* resource_context_;
    101   scoped_refptr<net::URLRequestContextGetter> url_context_;
    102 
    103   SocketsMap sockets_;
    104 
    105   bool monitoring_networks_;
    106 
    107   std::set<DnsRequest*> dns_requests_;
    108   P2PMessageThrottler throttler_;
    109 
    110   bool dump_incoming_rtp_packet_;
    111   bool dump_outgoing_rtp_packet_;
    112   RenderProcessHost::WebRtcRtpPacketCallback packet_callback_;
    113 
    114   DISALLOW_COPY_AND_ASSIGN(P2PSocketDispatcherHost);
    115 };
    116 
    117 }  // namespace content
    118 
    119 #endif  // CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_DISPATCHER_HOST_H_
    120