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