chrome_browser_pepper_host_factory.cc revision d0247b1b59f9c528cb6df88b4f2b9afaf80d181e 
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_crx_file_system_message_filter.h"
10#include "chrome/browser/renderer_host/pepper/pepper_extensions_common_message_filter.h"
11#include "chrome/browser/renderer_host/pepper/pepper_flash_browser_host.h"
12#include "chrome/browser/renderer_host/pepper/pepper_flash_clipboard_message_filter.h"
13#include "chrome/browser/renderer_host/pepper/pepper_flash_drm_host.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}
33
34ChromeBrowserPepperHostFactory::~ChromeBrowserPepperHostFactory() {
35}
36
37scoped_ptr<ResourceHost> ChromeBrowserPepperHostFactory::CreateResourceHost(
38    ppapi::host::PpapiHost* host,
39    const ppapi::proxy::ResourceMessageCallParams& params,
40    PP_Instance instance,
41    const IPC::Message& message) {
42  DCHECK(host == host_->GetPpapiHost());
43
44  // Make sure the plugin is giving us a valid instance for this resource.
45  if (!host_->IsValidInstance(instance))
46    return scoped_ptr<ResourceHost>();
47
48  // Dev interfaces.
49  if (host_->GetPpapiHost()->permissions().HasPermission(
50      ppapi::PERMISSION_DEV)) {
51    switch (message.type()) {
52      case PpapiHostMsg_ExtensionsCommon_Create::ID: {
53        scoped_refptr<ResourceMessageFilter> extensions_common_filter(
54            PepperExtensionsCommonMessageFilter::Create(host_, instance));
55        if (!extensions_common_filter.get())
56          return scoped_ptr<ResourceHost>();
57        return scoped_ptr<ResourceHost>(new MessageFilterHost(
58            host_->GetPpapiHost(), instance, params.pp_resource(),
59            extensions_common_filter));
60      }
61    }
62  }
63
64  // Private interfaces.
65  if (host_->GetPpapiHost()->permissions().HasPermission(
66          ppapi::PERMISSION_PRIVATE)) {
67    switch (message.type()) {
68      case PpapiHostMsg_Broker_Create::ID: {
69        scoped_refptr<ResourceMessageFilter> broker_filter(
70            new PepperBrokerMessageFilter(instance, host_));
71        return scoped_ptr<ResourceHost>(new MessageFilterHost(
72            host_->GetPpapiHost(), instance, params.pp_resource(),
73            broker_filter));
74      }
75#if defined(OS_CHROMEOS)
76      case PpapiHostMsg_PlatformVerification_Create::ID: {
77        scoped_refptr<ResourceMessageFilter> pv_filter(
78            new PepperPlatformVerificationMessageFilter(host_, instance));
79        return scoped_ptr<ResourceHost>(new MessageFilterHost(
80            host_->GetPpapiHost(), instance, params.pp_resource(), pv_filter));
81      }
82#endif
83      case PpapiHostMsg_Talk_Create::ID:
84        return scoped_ptr<ResourceHost>(new PepperTalkHost(
85            host_, instance, params.pp_resource()));
86    }
87  }
88
89  // Flash interfaces.
90  if (host_->GetPpapiHost()->permissions().HasPermission(
91          ppapi::PERMISSION_FLASH)) {
92    switch (message.type()) {
93      case PpapiHostMsg_Flash_Create::ID:
94        return scoped_ptr<ResourceHost>(new PepperFlashBrowserHost(
95            host_, instance, params.pp_resource()));
96      case PpapiHostMsg_FlashClipboard_Create::ID: {
97        scoped_refptr<ResourceMessageFilter> clipboard_filter(
98            new PepperFlashClipboardMessageFilter);
99        return scoped_ptr<ResourceHost>(new MessageFilterHost(
100            host_->GetPpapiHost(), instance, params.pp_resource(),
101            clipboard_filter));
102      }
103      case PpapiHostMsg_FlashDRM_Create::ID:
104        return scoped_ptr<ResourceHost>(new PepperFlashDRMHost(
105            host_, instance, params.pp_resource()));
106    }
107  }
108
109  // Permissions for the following interfaces will be checked at the
110  // time of the corresponding instance's methods calls (because
111  // permission check can be performed only on the UI
112  // thread). Currently these interfaces are available only for
113  // whitelisted apps which may not have access to the other private
114  // interfaces.
115  if (message.type() == PpapiHostMsg_Ext_CrxFileSystem_Create::ID) {
116    PepperCrxFileSystemMessageFilter* crxfs_filter =
117        PepperCrxFileSystemMessageFilter::Create(instance, host_);
118    if (!crxfs_filter)
119      return scoped_ptr<ResourceHost>();
120    return scoped_ptr<ResourceHost>(new MessageFilterHost(
121        host, instance, params.pp_resource(), crxfs_filter));
122  }
123
124  return scoped_ptr<ResourceHost>();
125}
126
127}  // namespace chrome
128