content/browser/renderer_host/pepper/pepper_network_monitor_host.cc

   1 // Copyright 2013 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 "content/browser/renderer_host/pepper/pepper_network_monitor_host.h"
   6
   7 #include "base/task_runner_util.h"
   8 #include "base/threading/sequenced_worker_pool.h"
   9 #include "content/browser/renderer_host/pepper/browser_ppapi_host_impl.h"
  10 #include "content/browser/renderer_host/pepper/pepper_socket_utils.h"
  11 #include "content/public/browser/browser_thread.h"
  12 #include "content/public/common/socket_permission_request.h"
  13 #include "ppapi/proxy/ppapi_messages.h"
  14 #include "ppapi/shared_impl/private/net_address_private_impl.h"
  15
  16
  17 namespace content {
  18
  19 namespace {
  20
  21 bool CanUseNetworkMonitor(bool external_plugin,
  22                           int render_process_id,
  23                           int render_frame_id) {
  24   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  25
  26   SocketPermissionRequest request = SocketPermissionRequest(
  27       SocketPermissionRequest::NETWORK_STATE, std::string(), 0);
  28   return pepper_socket_utils::CanUseSocketAPIs(
  29       external_plugin, false /* private_api */, &request, render_process_id,
  30       render_frame_id);
  31 }
  32
  33 scoped_ptr<net::NetworkInterfaceList> GetNetworkList() {
  34   scoped_ptr<net::NetworkInterfaceList> list(new net::NetworkInterfaceList());
  35   net::GetNetworkList(list.get(), net::INCLUDE_HOST_SCOPE_VIRTUAL_INTERFACES);
  36   return list.Pass();
  37 }
  38
  39 }  // namespace
  40
  41 PepperNetworkMonitorHost::PepperNetworkMonitorHost(
  42     BrowserPpapiHostImpl* host,
  43     PP_Instance instance,
  44     PP_Resource resource)
  45     : ResourceHost(host->GetPpapiHost(), instance, resource),
  46       weak_factory_(this) {
  47   int render_process_id;
  48   int render_frame_id;
  49   host->GetRenderFrameIDsForInstance(instance,
  50                                      &render_process_id,
  51                                      &render_frame_id);
  52
  53   BrowserThread::PostTaskAndReplyWithResult(
  54       BrowserThread::UI, FROM_HERE,
  55       base::Bind(&CanUseNetworkMonitor, host->external_plugin(),
  56                  render_process_id, render_frame_id),
  57       base::Bind(&PepperNetworkMonitorHost::OnPermissionCheckResult,
  58                  weak_factory_.GetWeakPtr()));
  59 }
  60
  61 PepperNetworkMonitorHost::~PepperNetworkMonitorHost() {
  62   net::NetworkChangeNotifier::RemoveIPAddressObserver(this);
  63 }
  64
  65 void PepperNetworkMonitorHost::OnIPAddressChanged() {
  66   GetAndSendNetworkList();
  67 }
  68
  69 void PepperNetworkMonitorHost::OnPermissionCheckResult(
  70     bool can_use_network_monitor) {
  71   if (!can_use_network_monitor) {
  72     host()->SendUnsolicitedReply(pp_resource(),
  73                                  PpapiPluginMsg_NetworkMonitor_Forbidden());
  74     return;
  75   }
  76
  77   net::NetworkChangeNotifier::AddIPAddressObserver(this);
  78   GetAndSendNetworkList();
  79 }
  80
  81 void PepperNetworkMonitorHost::GetAndSendNetworkList() {
  82   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
  83
  84   // Call GetNetworkList() on a thread that allows blocking IO.
  85   base::PostTaskAndReplyWithResult(
  86       BrowserThread::GetBlockingPool(), FROM_HERE,
  87       base::Bind(&GetNetworkList),
  88       base::Bind(&PepperNetworkMonitorHost::SendNetworkList,
  89                  weak_factory_.GetWeakPtr()));
  90 }
  91
  92 void PepperNetworkMonitorHost::SendNetworkList(
  93     scoped_ptr<net::NetworkInterfaceList> list) {
  94   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
  95
  96   scoped_ptr<ppapi::proxy::SerializedNetworkList> list_copy(
  97       new ppapi::proxy::SerializedNetworkList(list->size()));
  98   for (size_t i = 0; i < list->size(); ++i) {
  99     const net::NetworkInterface& network = list->at(i);
 100     ppapi::proxy::SerializedNetworkInfo& network_copy = list_copy->at(i);
 101     network_copy.name = network.name;
 102
 103     network_copy.addresses.resize(
 104         1, ppapi::NetAddressPrivateImpl::kInvalidNetAddress);
 105     bool result = ppapi::NetAddressPrivateImpl::IPEndPointToNetAddress(
 106         network.address, 0, &(network_copy.addresses[0]));
 107     DCHECK(result);
 108
 109     // TODO(sergeyu): Currently net::NetworkInterfaceList provides
 110     // only name and one IP address. Add all other fields and copy
 111     // them here.
 112     network_copy.type = PP_NETWORKLIST_TYPE_UNKNOWN;
 113     network_copy.state = PP_NETWORKLIST_STATE_UP;
 114     network_copy.display_name = network.name;
 115     network_copy.mtu = 0;
 116   }
 117   host()->SendUnsolicitedReply(
 118       pp_resource(), PpapiPluginMsg_NetworkMonitor_NetworkList(*list_copy));
 119 }
 120
 121 }  // namespace content