chrome_browser_pepper_host_factory.cc revision f2477e01787aa58f445919b809d89e252beef54f 
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}
34
35ChromeBrowserPepperHostFactory::~ChromeBrowserPepperHostFactory() {
36}
37
38scoped_ptr<ResourceHost> ChromeBrowserPepperHostFactory::CreateResourceHost(
39    ppapi::host::PpapiHost* host,
40    const ppapi::proxy::ResourceMessageCallParams& params,
41    PP_Instance instance,
42    const IPC::Message& message) {
43  DCHECK(host == host_->GetPpapiHost());
44
45  // Make sure the plugin is giving us a valid instance for this resource.
46  if (!host_->IsValidInstance(instance))
47    return scoped_ptr<ResourceHost>();
48
49  // Dev interfaces.
50  if (host_->GetPpapiHost()->permissions().HasPermission(
51      ppapi::PERMISSION_DEV)) {
52    switch (message.type()) {
53      case PpapiHostMsg_ExtensionsCommon_Create::ID: {
54        scoped_refptr<ResourceMessageFilter> extensions_common_filter(
55            PepperExtensionsCommonMessageFilter::Create(host_, instance));
56        if (!extensions_common_filter.get())
57          return scoped_ptr<ResourceHost>();
58        return scoped_ptr<ResourceHost>(new MessageFilterHost(
59            host_->GetPpapiHost(), instance, 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>(new MessageFilterHost(
73            host_->GetPpapiHost(), instance, params.pp_resource(),
74            broker_filter));
75      }
76#if defined(OS_CHROMEOS)
77      case PpapiHostMsg_PlatformVerification_Create::ID: {
78        scoped_refptr<ResourceMessageFilter> pv_filter(
79            new PepperPlatformVerificationMessageFilter(host_, instance));
80        return scoped_ptr<ResourceHost>(new MessageFilterHost(
81            host_->GetPpapiHost(), instance, params.pp_resource(), pv_filter));
82      }
83#endif
84      case PpapiHostMsg_Talk_Create::ID:
85        return scoped_ptr<ResourceHost>(new PepperTalkHost(
86            host_, instance, params.pp_resource()));
87#if defined(OS_CHROMEOS)
88      case PpapiHostMsg_OutputProtection_Create::ID: {
89        scoped_refptr<ResourceMessageFilter> output_protection_filter(
90            new PepperOutputProtectionMessageFilter(host_, instance));
91        return scoped_ptr<ResourceHost>(new MessageFilterHost(
92            host_->GetPpapiHost(), instance, params.pp_resource(),
93            output_protection_filter));
94      }
95#endif
96    }
97  }
98
99  // Flash interfaces.
100  if (host_->GetPpapiHost()->permissions().HasPermission(
101          ppapi::PERMISSION_FLASH)) {
102    switch (message.type()) {
103      case PpapiHostMsg_Flash_Create::ID:
104        return scoped_ptr<ResourceHost>(new PepperFlashBrowserHost(
105            host_, instance, params.pp_resource()));
106      case PpapiHostMsg_FlashClipboard_Create::ID: {
107        scoped_refptr<ResourceMessageFilter> clipboard_filter(
108            new PepperFlashClipboardMessageFilter);
109        return scoped_ptr<ResourceHost>(new MessageFilterHost(
110            host_->GetPpapiHost(), instance, params.pp_resource(),
111            clipboard_filter));
112      }
113    }
114  }
115
116  // PepperFlashDRMHost is also used by the PPB_Flash_DeviceID interface
117  // which has private permission.
118  // TODO(xhwang): Once PPB_Flash_DeviceID is removed, remove the check
119  // for private permissions.
120  if (host_->GetPpapiHost()->permissions().HasPermission(
121          ppapi::PERMISSION_FLASH) ||
122      host_->GetPpapiHost()->permissions().HasPermission(
123          ppapi::PERMISSION_PRIVATE)) {
124    switch (message.type()) {
125      case PpapiHostMsg_FlashDRM_Create::ID:
126        return scoped_ptr<ResourceHost>(new PepperFlashDRMHost(
127            host_, instance, params.pp_resource()));
128    }
129  }
130
131  // Permissions for the following interfaces will be checked at the
132  // time of the corresponding instance's methods calls (because
133  // permission check can be performed only on the UI
134  // thread). Currently these interfaces are available only for
135  // whitelisted apps which may not have access to the other private
136  // interfaces.
137  if (message.type() == PpapiHostMsg_IsolatedFileSystem_Create::ID) {
138    PepperIsolatedFileSystemMessageFilter* isolated_fs_filter =
139        PepperIsolatedFileSystemMessageFilter::Create(instance, host_);
140    if (!isolated_fs_filter)
141      return scoped_ptr<ResourceHost>();
142    return scoped_ptr<ResourceHost>(new MessageFilterHost(
143        host, instance, params.pp_resource(), isolated_fs_filter));
144  }
145
146  return scoped_ptr<ResourceHost>();
147}
148
149}  // namespace chrome
150