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
23using ppapi::host::MessageFilterHost;
24using ppapi::host::ResourceHost;
25using ppapi::host::ResourceMessageFilter;
26
27namespace chrome {
28
29ChromeBrowserPepperHostFactory::ChromeBrowserPepperHostFactory(
30    content::BrowserPpapiHost* host)
31    : host_(host) {}
32
33ChromeBrowserPepperHostFactory::~ChromeBrowserPepperHostFactory() {}
34
35scoped_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
125