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     const ppapi::proxy::ResourceMessageCallParams& params,
  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>(
  54             new MessageFilterHost(host_->GetPpapiHost(),
  55                                   instance,
  56                                   params.pp_resource(),
  57                                   broker_filter));
  58       }
  59 #if defined(OS_CHROMEOS)
  60       case PpapiHostMsg_PlatformVerification_Create::ID: {
  61         scoped_refptr<ResourceMessageFilter> pv_filter(
  62             new PepperPlatformVerificationMessageFilter(host_, instance));
  63         return scoped_ptr<ResourceHost>(new MessageFilterHost(
  64             host_->GetPpapiHost(), instance, params.pp_resource(), pv_filter));
  65       }
  66 #endif
  67       case PpapiHostMsg_Talk_Create::ID:
  68         return scoped_ptr<ResourceHost>(
  69             new PepperTalkHost(host_, instance, params.pp_resource()));
  70 #if defined(OS_CHROMEOS)
  71       case PpapiHostMsg_OutputProtection_Create::ID: {
  72         scoped_refptr<ResourceMessageFilter> output_protection_filter(
  73             new PepperOutputProtectionMessageFilter(host_, instance));
  74         return scoped_ptr<ResourceHost>(
  75             new MessageFilterHost(host_->GetPpapiHost(),
  76                                   instance,
  77                                   params.pp_resource(),
  78                                   output_protection_filter));
  79       }
  80 #endif
  81     }
  82   }
  83
  84   // Flash interfaces.
  85   if (host_->GetPpapiHost()->permissions().HasPermission(
  86           ppapi::PERMISSION_FLASH)) {
  87     switch (message.type()) {
  88       case PpapiHostMsg_Flash_Create::ID:
  89         return scoped_ptr<ResourceHost>(
  90             new PepperFlashBrowserHost(host_, instance, params.pp_resource()));
  91       case PpapiHostMsg_FlashClipboard_Create::ID: {
  92         scoped_refptr<ResourceMessageFilter> clipboard_filter(
  93             new PepperFlashClipboardMessageFilter);
  94         return scoped_ptr<ResourceHost>(
  95             new MessageFilterHost(host_->GetPpapiHost(),
  96                                   instance,
  97                                   params.pp_resource(),
  98                                   clipboard_filter));
  99       }
 100       case PpapiHostMsg_FlashDRM_Create::ID:
 101         return scoped_ptr<ResourceHost>(
 102             new PepperFlashDRMHost(host_, instance, params.pp_resource()));
 103     }
 104   }
 105
 106   // Permissions for the following interfaces will be checked at the
 107   // time of the corresponding instance's methods calls (because
 108   // permission check can be performed only on the UI
 109   // thread). Currently these interfaces are available only for
 110   // whitelisted apps which may not have access to the other private
 111   // interfaces.
 112   if (message.type() == PpapiHostMsg_IsolatedFileSystem_Create::ID) {
 113     PepperIsolatedFileSystemMessageFilter* isolated_fs_filter =
 114         PepperIsolatedFileSystemMessageFilter::Create(instance, host_);
 115     if (!isolated_fs_filter)
 116       return scoped_ptr<ResourceHost>();
 117     return scoped_ptr<ResourceHost>(new MessageFilterHost(
 118         host, instance, params.pp_resource(), isolated_fs_filter));
 119   }
 120
 121   return scoped_ptr<ResourceHost>();
 122 }
 123
 124 }  // namespace chrome