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 namespace content {
  17
  18 namespace {
  19
  20 bool CanUseNetworkMonitor(bool external_plugin,
  21                           int render_process_id,
  22                           int render_frame_id) {
  23   DCHECK_CURRENTLY_ON(BrowserThread::UI);
  24
  25   SocketPermissionRequest request = SocketPermissionRequest(
  26       SocketPermissionRequest::NETWORK_STATE, std::string(), 0);
  27   return pepper_socket_utils::CanUseSocketAPIs(external_plugin,
  28                                                false /* private_api */,
  29                                                &request,
  30                                                render_process_id,
  31                                                render_frame_id);
  32 }
  33
  34 scoped_ptr<net::NetworkInterfaceList> GetNetworkList() {
  35   scoped_ptr<net::NetworkInterfaceList> list(new net::NetworkInterfaceList());
  36   net::GetNetworkList(list.get(), net::INCLUDE_HOST_SCOPE_VIRTUAL_INTERFACES);
  37   return list.Pass();
  38 }
  39
  40 }  // namespace
  41
  42 PepperNetworkMonitorHost::PepperNetworkMonitorHost(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(
  50       instance, &render_process_id, &render_frame_id);
  51
  52   BrowserThread::PostTaskAndReplyWithResult(
  53       BrowserThread::UI,
  54       FROM_HERE,
  55       base::Bind(&CanUseNetworkMonitor,
  56                  host->external_plugin(),
  57                  render_process_id,
  58                  render_frame_id),
  59       base::Bind(&PepperNetworkMonitorHost::OnPermissionCheckResult,
  60                  weak_factory_.GetWeakPtr()));
  61 }
  62
  63 PepperNetworkMonitorHost::~PepperNetworkMonitorHost() {
  64   net::NetworkChangeNotifier::RemoveIPAddressObserver(this);
  65 }
  66
  67 void PepperNetworkMonitorHost::OnIPAddressChanged() { GetAndSendNetworkList(); }
  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_CURRENTLY_ON(BrowserThread::IO);
  83
  84   // Call GetNetworkList() on a thread that allows blocking IO.
  85   base::PostTaskAndReplyWithResult(
  86       BrowserThread::GetBlockingPool(),
  87       FROM_HERE,
  88       base::Bind(&GetNetworkList),
  89       base::Bind(&PepperNetworkMonitorHost::SendNetworkList,
  90                  weak_factory_.GetWeakPtr()));
  91 }
  92
  93 void PepperNetworkMonitorHost::SendNetworkList(
  94     scoped_ptr<net::NetworkInterfaceList> list) {
  95   DCHECK_CURRENTLY_ON(BrowserThread::IO);
  96
  97   scoped_ptr<ppapi::proxy::SerializedNetworkList> list_copy(
  98       new ppapi::proxy::SerializedNetworkList(list->size()));
  99   for (size_t i = 0; i < list->size(); ++i) {
 100     const net::NetworkInterface& network = list->at(i);
 101     ppapi::proxy::SerializedNetworkInfo& network_copy = list_copy->at(i);
 102     network_copy.name = network.name;
 103
 104     network_copy.addresses.resize(
 105         1, ppapi::NetAddressPrivateImpl::kInvalidNetAddress);
 106     bool result = ppapi::NetAddressPrivateImpl::IPEndPointToNetAddress(
 107         network.address, 0, &(network_copy.addresses[0]));
 108     DCHECK(result);
 109
 110     // TODO(sergeyu): Currently net::NetworkInterfaceList provides
 111     // only name and one IP address. Add all other fields and copy
 112     // them here.
 113     network_copy.type = PP_NETWORKLIST_TYPE_UNKNOWN;
 114     network_copy.state = PP_NETWORKLIST_STATE_UP;
 115     network_copy.display_name = network.name;
 116     network_copy.mtu = 0;
 117   }
 118   host()->SendUnsolicitedReply(
 119       pp_resource(), PpapiPluginMsg_NetworkMonitor_NetworkList(*list_copy));
 120 }
 121
 122 }  // namespace content