src/content/browser/geolocation/geolocation_dispatcher_host.cc

   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 #include "content/browser/geolocation/geolocation_dispatcher_host.h"
   6
   7 #include <utility>
   8
   9 #include "base/bind.h"
  10 #include "content/browser/frame_host/render_frame_host_impl.h"
  11 #include "content/browser/geolocation/geolocation_provider_impl.h"
  12 #include "content/browser/renderer_host/render_message_filter.h"
  13 #include "content/browser/web_contents/web_contents_impl.h"
  14 #include "content/public/browser/content_browser_client.h"
  15 #include "content/common/geolocation_messages.h"
  16
  17 namespace content {
  18
  19 GeolocationDispatcherHost::PendingPermission::PendingPermission(
  20     int render_frame_id,
  21     int render_process_id,
  22     int bridge_id,
  23     const GURL& origin)
  24     : render_frame_id(render_frame_id),
  25       render_process_id(render_process_id),
  26       bridge_id(bridge_id),
  27       origin(origin) {
  28 }
  29
  30 GeolocationDispatcherHost::PendingPermission::~PendingPermission() {
  31 }
  32
  33 GeolocationDispatcherHost::GeolocationDispatcherHost(
  34     WebContents* web_contents)
  35     : WebContentsObserver(web_contents),
  36       weak_factory_(this) {
  37   // This is initialized by WebContentsImpl. Do not add any non-trivial
  38   // initialization here, defer to OnStartUpdating which is triggered whenever
  39   // a javascript geolocation object is actually initialized.
  40 }
  41
  42 GeolocationDispatcherHost::~GeolocationDispatcherHost() {
  43 }
  44
  45 void GeolocationDispatcherHost::RenderFrameDeleted(
  46     RenderFrameHost* render_frame_host) {
  47   CancelPermissionRequestsForFrame(render_frame_host);
  48 }
  49
  50 void GeolocationDispatcherHost::DidNavigateAnyFrame(
  51     RenderFrameHost* render_frame_host,
  52     const LoadCommittedDetails& details,
  53     const FrameNavigateParams& params) {
  54   if (details.is_in_page)
  55     return;
  56
  57   CancelPermissionRequestsForFrame(render_frame_host);
  58 }
  59
  60 bool GeolocationDispatcherHost::OnMessageReceived(
  61     const IPC::Message& msg, RenderFrameHost* render_frame_host) {
  62   bool handled = true;
  63   IPC_BEGIN_MESSAGE_MAP_WITH_PARAM(GeolocationDispatcherHost, msg,
  64                                    render_frame_host)
  65     IPC_MESSAGE_HANDLER(GeolocationHostMsg_RequestPermission,
  66                         OnRequestPermission)
  67     IPC_MESSAGE_UNHANDLED(handled = false)
  68   IPC_END_MESSAGE_MAP()
  69   return handled;
  70 }
  71
  72 void GeolocationDispatcherHost::OnRequestPermission(
  73     RenderFrameHost* render_frame_host,
  74     int bridge_id,
  75     const GURL& requesting_origin,
  76     bool user_gesture) {
  77   int render_process_id = render_frame_host->GetProcess()->GetID();
  78   int render_frame_id = render_frame_host->GetRoutingID();
  79
  80   PendingPermission pending_permission(
  81       render_frame_id, render_process_id, bridge_id, requesting_origin);
  82   pending_permissions_.push_back(pending_permission);
  83
  84   GetContentClient()->browser()->RequestPermission(
  85       content::PERMISSION_GEOLOCATION,
  86       web_contents(),
  87       bridge_id,
  88       requesting_origin,
  89       user_gesture,
  90       base::Bind(&GeolocationDispatcherHost::SendGeolocationPermissionResponse,
  91                  weak_factory_.GetWeakPtr(),
  92                  render_process_id,
  93                  render_frame_id,
  94                  bridge_id));
  95 }
  96
  97 void GeolocationDispatcherHost::SendGeolocationPermissionResponse(
  98     int render_process_id,
  99     int render_frame_id,
 100     int bridge_id,
 101     bool allowed) {
 102   for (size_t i = 0; i < pending_permissions_.size(); ++i) {
 103     if (pending_permissions_[i].render_process_id == render_process_id &&
 104         pending_permissions_[i].render_frame_id == render_frame_id &&
 105         pending_permissions_[i].bridge_id == bridge_id) {
 106       RenderFrameHost* render_frame_host =
 107           RenderFrameHost::FromID(render_process_id, render_frame_id);
 108       if (render_frame_host) {
 109         render_frame_host->Send(new GeolocationMsg_PermissionSet(
 110             render_frame_id, bridge_id, allowed));
 111       }
 112
 113       if (allowed) {
 114         GeolocationProviderImpl::GetInstance()->
 115             UserDidOptIntoLocationServices();
 116       }
 117
 118       pending_permissions_.erase(pending_permissions_.begin() + i);
 119       return;
 120     }
 121   }
 122
 123   NOTREACHED();
 124 }
 125
 126 void GeolocationDispatcherHost::CancelPermissionRequestsForFrame(
 127     RenderFrameHost* render_frame_host) {
 128   int render_process_id = render_frame_host->GetProcess()->GetID();
 129   int render_frame_id = render_frame_host->GetRoutingID();
 130
 131   for (size_t i = 0; i < pending_permissions_.size(); ++i) {
 132     if (pending_permissions_[i].render_process_id == render_process_id &&
 133         pending_permissions_[i].render_frame_id == render_frame_id) {
 134       GetContentClient()->browser()->CancelPermissionRequest(
 135           content::PERMISSION_GEOLOCATION,
 136           web_contents(),
 137           pending_permissions_[i].bridge_id,
 138           pending_permissions_[i].origin);
 139       pending_permissions_.erase(pending_permissions_.begin() + i);
 140     }
 141   }
 142 }
 143
 144 }  // namespace content