chrome_browser_pepper_host_factory.cc revision a02191e04bc25c4935f804f2c080ae28663d096d 
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_extensions_common_message_filter.h"
10#include "chrome/browser/renderer_host/pepper/pepper_flash_browser_host.h"
11#include "chrome/browser/renderer_host/pepper/pepper_flash_clipboard_message_filter.h"
12#include "chrome/browser/renderer_host/pepper/pepper_flash_drm_host.h"
13#include "chrome/browser/renderer_host/pepper/pepper_isolated_file_system_message_filter.h"
14#include "chrome/browser/renderer_host/pepper/pepper_output_protection_message_filter.h"
15#include "chrome/browser/renderer_host/pepper/pepper_platform_verification_message_filter.h"
16#include "chrome/browser/renderer_host/pepper/pepper_talk_host.h"
17#include "content/public/browser/browser_ppapi_host.h"
18#include "ppapi/host/message_filter_host.h"
19#include "ppapi/host/ppapi_host.h"
20#include "ppapi/host/resource_host.h"
21#include "ppapi/proxy/ppapi_messages.h"
22#include "ppapi/shared_impl/ppapi_permissions.h"
23
24using ppapi::host::MessageFilterHost;
25using ppapi::host::ResourceHost;
26using ppapi::host::ResourceMessageFilter;
27
28namespace chrome {
29
30ChromeBrowserPepperHostFactory::ChromeBrowserPepperHostFactory(
31    content::BrowserPpapiHost* host)
32    : host_(host) {}
33
34ChromeBrowserPepperHostFactory::~ChromeBrowserPepperHostFactory() {}
35
36scoped_ptr<ResourceHost> ChromeBrowserPepperHostFactory::CreateResourceHost(
37    ppapi::host::PpapiHost* host,
38    const ppapi::proxy::ResourceMessageCallParams& params,
39    PP_Instance instance,
40    const IPC::Message& message) {
41  DCHECK(host == host_->GetPpapiHost());
42
43  // Make sure the plugin is giving us a valid instance for this resource.
44  if (!host_->IsValidInstance(instance))
45    return scoped_ptr<ResourceHost>();
46
47  // Dev interfaces.
48  if (host_->GetPpapiHost()->permissions().HasPermission(
49          ppapi::PERMISSION_DEV)) {
50    switch (message.type()) {
51      case PpapiHostMsg_ExtensionsCommon_Create::ID: {
52        scoped_refptr<ResourceMessageFilter> extensions_common_filter(
53            PepperExtensionsCommonMessageFilter::Create(host_, instance));
54        if (!extensions_common_filter.get())
55          return scoped_ptr<ResourceHost>();
56        return scoped_ptr<ResourceHost>(
57            new MessageFilterHost(host_->GetPpapiHost(),
58                                  instance,
59                                  params.pp_resource(),
60                                  extensions_common_filter));
61      }
62    }
63  }
64
65  // Private interfaces.
66  if (host_->GetPpapiHost()->permissions().HasPermission(
67          ppapi::PERMISSION_PRIVATE)) {
68    switch (message.type()) {
69      case PpapiHostMsg_Broker_Create::ID: {
70        scoped_refptr<ResourceMessageFilter> broker_filter(
71            new PepperBrokerMessageFilter(instance, host_));
72        return scoped_ptr<ResourceHost>(
73            new MessageFilterHost(host_->GetPpapiHost(),
74                                  instance,
75                                  params.pp_resource(),
76                                  broker_filter));
77      }
78#if defined(OS_CHROMEOS)
79      case PpapiHostMsg_PlatformVerification_Create::ID: {
80        scoped_refptr<ResourceMessageFilter> pv_filter(
81            new PepperPlatformVerificationMessageFilter(host_, instance));
82        return scoped_ptr<ResourceHost>(new MessageFilterHost(
83            host_->GetPpapiHost(), instance, params.pp_resource(), pv_filter));
84      }
85#endif
86      case PpapiHostMsg_Talk_Create::ID:
87        return scoped_ptr<ResourceHost>(
88            new PepperTalkHost(host_, instance, params.pp_resource()));
89#if defined(OS_CHROMEOS)
90      case PpapiHostMsg_OutputProtection_Create::ID: {
91        scoped_refptr<ResourceMessageFilter> output_protection_filter(
92            new PepperOutputProtectionMessageFilter(host_, instance));
93        return scoped_ptr<ResourceHost>(
94            new MessageFilterHost(host_->GetPpapiHost(),
95                                  instance,
96                                  params.pp_resource(),
97                                  output_protection_filter));
98      }
99#endif
100    }
101  }
102
103  // Flash interfaces.
104  if (host_->GetPpapiHost()->permissions().HasPermission(
105          ppapi::PERMISSION_FLASH)) {
106    switch (message.type()) {
107      case PpapiHostMsg_Flash_Create::ID:
108        return scoped_ptr<ResourceHost>(
109            new PepperFlashBrowserHost(host_, instance, params.pp_resource()));
110      case PpapiHostMsg_FlashClipboard_Create::ID: {
111        scoped_refptr<ResourceMessageFilter> clipboard_filter(
112            new PepperFlashClipboardMessageFilter);
113        return scoped_ptr<ResourceHost>(
114            new MessageFilterHost(host_->GetPpapiHost(),
115                                  instance,
116                                  params.pp_resource(),
117                                  clipboard_filter));
118      }
119      case PpapiHostMsg_FlashDRM_Create::ID:
120        return scoped_ptr<ResourceHost>(
121            new PepperFlashDRMHost(host_, instance, params.pp_resource()));
122    }
123  }
124
125  // Permissions for the following interfaces will be checked at the
126  // time of the corresponding instance's methods calls (because
127  // permission check can be performed only on the UI
128  // thread). Currently these interfaces are available only for
129  // whitelisted apps which may not have access to the other private
130  // interfaces.
131  if (message.type() == PpapiHostMsg_IsolatedFileSystem_Create::ID) {
132    PepperIsolatedFileSystemMessageFilter* isolated_fs_filter =
133        PepperIsolatedFileSystemMessageFilter::Create(instance, host_);
134    if (!isolated_fs_filter)
135      return scoped_ptr<ResourceHost>();
136    return scoped_ptr<ResourceHost>(new MessageFilterHost(
137        host, instance, params.pp_resource(), isolated_fs_filter));
138  }
139
140  return scoped_ptr<ResourceHost>();
141}
142
143}  // namespace chrome
144