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 "chrome/browser/renderer_host/pepper/pepper_broker_message_filter.h" 6 7 #include <string> 8 9 #include "chrome/browser/content_settings/host_content_settings_map.h" 10 #include "chrome/browser/profiles/profile.h" 11 #include "chrome/common/content_settings.h" 12 #include "content/public/browser/browser_ppapi_host.h" 13 #include "content/public/browser/browser_thread.h" 14 #include "content/public/browser/render_process_host.h" 15 #include "ipc/ipc_message_macros.h" 16 #include "ppapi/c/pp_errors.h" 17 #include "ppapi/host/dispatch_host_message.h" 18 #include "ppapi/proxy/ppapi_messages.h" 19 #include "url/gurl.h" 20 21 using content::BrowserPpapiHost; 22 using content::BrowserThread; 23 using content::RenderProcessHost; 24 25 namespace chrome { 26 27 PepperBrokerMessageFilter::PepperBrokerMessageFilter( 28 PP_Instance instance, 29 BrowserPpapiHost* host) 30 : document_url_(host->GetDocumentURLForInstance(instance)) { 31 int unused; 32 host->GetRenderViewIDsForInstance(instance, &render_process_id_, &unused); 33 } 34 35 PepperBrokerMessageFilter::~PepperBrokerMessageFilter() { 36 } 37 38 scoped_refptr<base::TaskRunner> 39 PepperBrokerMessageFilter::OverrideTaskRunnerForMessage( 40 const IPC::Message& message) { 41 return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI); 42 } 43 44 int32_t PepperBrokerMessageFilter::OnResourceMessageReceived( 45 const IPC::Message& msg, 46 ppapi::host::HostMessageContext* context) { 47 IPC_BEGIN_MESSAGE_MAP(PepperBrokerMessageFilter, msg) 48 PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_Broker_IsAllowed, 49 OnIsAllowed) 50 IPC_END_MESSAGE_MAP() 51 return PP_ERROR_FAILED; 52 } 53 54 int32_t PepperBrokerMessageFilter::OnIsAllowed( 55 ppapi::host::HostMessageContext* context) { 56 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 57 if (!document_url_.is_valid()) 58 return PP_ERROR_FAILED; 59 RenderProcessHost* render_process_host = 60 RenderProcessHost::FromID(render_process_id_); 61 if (!render_process_host) 62 return PP_ERROR_FAILED; 63 Profile* profile = 64 Profile::FromBrowserContext(render_process_host->GetBrowserContext()); 65 HostContentSettingsMap* content_settings = 66 profile->GetHostContentSettingsMap(); 67 ContentSetting setting = 68 content_settings->GetContentSetting(document_url_, document_url_, 69 CONTENT_SETTINGS_TYPE_PPAPI_BROKER, 70 std::string()); 71 if (setting == CONTENT_SETTING_ALLOW) 72 return PP_OK; 73 return PP_ERROR_FAILED; 74 } 75 76 } // namespace chrome 77
