chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.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 "chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.h"
   6
   7 #include "build/build_config.h"
   8 #include "chrome/browser/renderer_host/pepper/pepper_broker_message_filter.h"
   9 #include "chrome/browser/renderer_host/pepper/pepper_flash_browser_host.h"
  10 #include "chrome/browser/renderer_host/pepper/pepper_flash_clipboard_message_filter.h"
  11 #include "chrome/browser/renderer_host/pepper/pepper_flash_drm_host.h"
  12 #include "chrome/browser/renderer_host/pepper/pepper_isolated_file_system_message_filter.h"
  13 #include "chrome/browser/renderer_host/pepper/pepper_output_protection_message_filter.h"
  14 #include "chrome/browser/renderer_host/pepper/pepper_platform_verification_message_filter.h"
  15 #include "chrome/browser/renderer_host/pepper/pepper_talk_host.h"
  16 #include "content/public/browser/browser_ppapi_host.h"
  17 #include "ppapi/host/message_filter_host.h"
  18 #include "ppapi/host/ppapi_host.h"
  19 #include "ppapi/host/resource_host.h"
  20 #include "ppapi/proxy/ppapi_messages.h"
  21 #include "ppapi/shared_impl/ppapi_permissions.h"
  22
  23 using ppapi::host::MessageFilterHost;
  24 using ppapi::host::ResourceHost;
  25 using ppapi::host::ResourceMessageFilter;
  26
  27 namespace chrome {
  28
  29 ChromeBrowserPepperHostFactory::ChromeBrowserPepperHostFactory(
  30     content::BrowserPpapiHost* host)
  31     : host_(host) {}
  32
  33 ChromeBrowserPepperHostFactory::~ChromeBrowserPepperHostFactory() {}
  34
  35 scoped_ptr<ResourceHost> ChromeBrowserPepperHostFactory::CreateResourceHost(
  36     ppapi::host::PpapiHost* host,
  37     PP_Resource resource,
  38     PP_Instance instance,
  39     const IPC::Message& message) {
  40   DCHECK(host == host_->GetPpapiHost());
  41
  42   // Make sure the plugin is giving us a valid instance for this resource.
  43   if (!host_->IsValidInstance(instance))
  44     return scoped_ptr<ResourceHost>();
  45
  46   // Private interfaces.
  47   if (host_->GetPpapiHost()->permissions().HasPermission(
  48           ppapi::PERMISSION_PRIVATE)) {
  49     switch (message.type()) {
  50       case PpapiHostMsg_Broker_Create::ID: {
  51         scoped_refptr<ResourceMessageFilter> broker_filter(
  52             new PepperBrokerMessageFilter(instance, host_));
  53         return scoped_ptr<ResourceHost>(new MessageFilterHost(
  54             host_->GetPpapiHost(), instance, resource, broker_filter));
  55       }
  56 #if defined(OS_CHROMEOS)
  57       case PpapiHostMsg_PlatformVerification_Create::ID: {
  58         scoped_refptr<ResourceMessageFilter> pv_filter(
  59             new PepperPlatformVerificationMessageFilter(host_, instance));
  60         return scoped_ptr<ResourceHost>(new MessageFilterHost(
  61             host_->GetPpapiHost(), instance, resource, pv_filter));
  62       }
  63 #endif
  64       case PpapiHostMsg_Talk_Create::ID:
  65         return scoped_ptr<ResourceHost>(
  66             new PepperTalkHost(host_, instance, resource));
  67 #if defined(OS_CHROMEOS)
  68       case PpapiHostMsg_OutputProtection_Create::ID: {
  69         scoped_refptr<ResourceMessageFilter> output_protection_filter(
  70             new PepperOutputProtectionMessageFilter(host_, instance));
  71         return scoped_ptr<ResourceHost>(
  72             new MessageFilterHost(host_->GetPpapiHost(), instance, resource,
  73                                   output_protection_filter));
  74       }
  75 #endif
  76     }
  77   }
  78
  79   // Flash interfaces.
  80   if (host_->GetPpapiHost()->permissions().HasPermission(
  81           ppapi::PERMISSION_FLASH)) {
  82     switch (message.type()) {
  83       case PpapiHostMsg_Flash_Create::ID:
  84         return scoped_ptr<ResourceHost>(
  85             new PepperFlashBrowserHost(host_, instance, resource));
  86       case PpapiHostMsg_FlashClipboard_Create::ID: {
  87         scoped_refptr<ResourceMessageFilter> clipboard_filter(
  88             new PepperFlashClipboardMessageFilter);
  89         return scoped_ptr<ResourceHost>(new MessageFilterHost(
  90             host_->GetPpapiHost(), instance, resource, clipboard_filter));
  91       }
  92       case PpapiHostMsg_FlashDRM_Create::ID:
  93         return scoped_ptr<ResourceHost>(
  94             new PepperFlashDRMHost(host_, instance, resource));
  95     }
  96   }
  97
  98   // Permissions for the following interfaces will be checked at the
  99   // time of the corresponding instance's methods calls (because
 100   // permission check can be performed only on the UI
 101   // thread). Currently these interfaces are available only for
 102   // whitelisted apps which may not have access to the other private
 103   // interfaces.
 104   if (message.type() == PpapiHostMsg_IsolatedFileSystem_Create::ID) {
 105     PepperIsolatedFileSystemMessageFilter* isolated_fs_filter =
 106         PepperIsolatedFileSystemMessageFilter::Create(instance, host_);
 107     if (!isolated_fs_filter)
 108       return scoped_ptr<ResourceHost>();
 109     return scoped_ptr<ResourceHost>(
 110         new MessageFilterHost(host, instance, resource, isolated_fs_filter));
 111   }
 112
 113   return scoped_ptr<ResourceHost>();
 114 }
 115
 116 }  // namespace chrome