1 // Copyright (c) 2011 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 "chrome/browser/search_engines/search_provider_install_state_message_filter.h" 6 7 #include "base/logging.h" 8 #include "chrome/browser/profiles/profile.h" 9 #include "chrome/common/render_messages.h" 10 #include "content/browser/renderer_host/render_process_host.h" 11 #include "content/browser/renderer_host/render_view_host.h" 12 #include "content/common/notification_source.h" 13 #include "content/common/notification_type.h" 14 #include "googleurl/src/gurl.h" 15 16 SearchProviderInstallStateMessageFilter:: 17 SearchProviderInstallStateMessageFilter( 18 int render_process_id, 19 Profile* profile) 20 : ALLOW_THIS_IN_INITIALIZER_LIST( 21 reply_with_provider_install_state_factory_(this)), 22 provider_data_(profile->GetWebDataService(Profile::EXPLICIT_ACCESS), 23 NotificationType::RENDERER_PROCESS_TERMINATED, 24 Source<RenderProcessHost>( 25 RenderProcessHost::FromID(render_process_id))), 26 is_off_the_record_(profile->IsOffTheRecord()) { 27 // This is initialized by BrowserRenderProcessHost. Do not add any non-trivial 28 // initialization here. Instead do it lazily when required. 29 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 30 } 31 32 SearchProviderInstallStateMessageFilter:: 33 ~SearchProviderInstallStateMessageFilter() { 34 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); 35 } 36 37 bool SearchProviderInstallStateMessageFilter::OnMessageReceived( 38 const IPC::Message& message, 39 bool* message_was_ok) { 40 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); 41 bool handled = true; 42 IPC_BEGIN_MESSAGE_MAP_EX(SearchProviderInstallStateMessageFilter, message, 43 *message_was_ok) 44 IPC_MESSAGE_HANDLER_DELAY_REPLY(ViewHostMsg_GetSearchProviderInstallState, 45 OnMsgGetSearchProviderInstallState) 46 IPC_MESSAGE_UNHANDLED(handled = false) 47 IPC_END_MESSAGE_MAP() 48 return handled; 49 } 50 51 search_provider::InstallState 52 SearchProviderInstallStateMessageFilter::GetSearchProviderInstallState( 53 const GURL& page_location, 54 const GURL& requested_host) { 55 GURL requested_origin = requested_host.GetOrigin(); 56 57 // Do the security check before any others to avoid information leaks. 58 if (page_location.GetOrigin() != requested_origin) 59 return search_provider::DENIED; 60 61 // In incognito mode, no search information is exposed. (This check must be 62 // done after the security check or else a web site can detect that the 63 // user is in incognito mode just by doing a cross origin request.) 64 if (is_off_the_record_) 65 return search_provider::NOT_INSTALLED; 66 67 switch (provider_data_.GetInstallState(requested_origin)) { 68 case SearchProviderInstallData::NOT_INSTALLED: 69 return search_provider::NOT_INSTALLED; 70 71 case SearchProviderInstallData::INSTALLED_BUT_NOT_DEFAULT: 72 return search_provider::INSTALLED_BUT_NOT_DEFAULT; 73 74 case SearchProviderInstallData::INSTALLED_AS_DEFAULT: 75 return search_provider::INSTALLED_AS_DEFAULT; 76 } 77 78 NOTREACHED(); 79 return search_provider::NOT_INSTALLED; 80 } 81 82 void 83 SearchProviderInstallStateMessageFilter::OnMsgGetSearchProviderInstallState( 84 const GURL& page_location, 85 const GURL& requested_host, 86 IPC::Message* reply_msg) { 87 provider_data_.CallWhenLoaded( 88 reply_with_provider_install_state_factory_.NewRunnableMethod( 89 &SearchProviderInstallStateMessageFilter:: 90 ReplyWithProviderInstallState, 91 page_location, 92 requested_host, 93 reply_msg)); 94 } 95 96 void SearchProviderInstallStateMessageFilter::ReplyWithProviderInstallState( 97 const GURL& page_location, 98 const GURL& requested_host, 99 IPC::Message* reply_msg) { 100 DCHECK(reply_msg); 101 search_provider::InstallState install_state = 102 GetSearchProviderInstallState(page_location, requested_host); 103 104 ViewHostMsg_GetSearchProviderInstallState::WriteReplyParams( 105 reply_msg, 106 install_state); 107 Send(reply_msg); 108 } 109
