chrome_browser_pepper_host_factory.cc revision 868fa2fe829687343ffae624259930155e16dbd8 
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 "chrome/browser/renderer_host/pepper/pepper_broker_message_filter.h"
8#include "chrome/browser/renderer_host/pepper/pepper_crx_file_system_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_talk_host.h"
14#include "content/public/browser/browser_ppapi_host.h"
15#include "ppapi/host/message_filter_host.h"
16#include "ppapi/host/ppapi_host.h"
17#include "ppapi/host/resource_host.h"
18#include "ppapi/proxy/ppapi_messages.h"
19#include "ppapi/shared_impl/ppapi_permissions.h"
20
21using ppapi::host::MessageFilterHost;
22using ppapi::host::ResourceHost;
23using ppapi::host::ResourceMessageFilter;
24
25namespace chrome {
26
27ChromeBrowserPepperHostFactory::ChromeBrowserPepperHostFactory(
28    content::BrowserPpapiHost* host)
29    : host_(host) {
30}
31
32ChromeBrowserPepperHostFactory::~ChromeBrowserPepperHostFactory() {
33}
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  // Dev interfaces.
47  if (host_->GetPpapiHost()->permissions().HasPermission(
48      ppapi::PERMISSION_DEV)) {
49    switch (message.type()) {
50      case PpapiHostMsg_ExtensionsCommon_Create::ID: {
51        scoped_refptr<ResourceMessageFilter> extensions_common_filter(
52            PepperExtensionsCommonMessageFilter::Create(host_, instance));
53        if (!extensions_common_filter.get())
54          return scoped_ptr<ResourceHost>();
55        return scoped_ptr<ResourceHost>(new MessageFilterHost(
56            host_->GetPpapiHost(), instance, params.pp_resource(),
57            extensions_common_filter));
58      }
59    }
60  }
61
62  // Private interfaces.
63  if (host_->GetPpapiHost()->permissions().HasPermission(
64          ppapi::PERMISSION_PRIVATE)) {
65    switch (message.type()) {
66      case PpapiHostMsg_Broker_Create::ID: {
67        scoped_refptr<ResourceMessageFilter> broker_filter(
68            new PepperBrokerMessageFilter(instance, host_));
69        return scoped_ptr<ResourceHost>(new MessageFilterHost(
70            host_->GetPpapiHost(), instance, params.pp_resource(),
71            broker_filter));
72      }
73      case PpapiHostMsg_Talk_Create::ID:
74        return scoped_ptr<ResourceHost>(new PepperTalkHost(
75            host_, instance, params.pp_resource()));
76    }
77  }
78
79  // Flash interfaces.
80  if (host_->GetPpapiHost()->permissions().HasPermission(
81          ppapi::PERMISSION_FLASH)) {
82    switch (message.type()) {
83      case PpapiHostMsg_Flash_Create::ID:
84        return scoped_ptr<ResourceHost>(new PepperFlashBrowserHost(
85            host_, instance, params.pp_resource()));
86      case PpapiHostMsg_FlashClipboard_Create::ID: {
87        scoped_refptr<ResourceMessageFilter> clipboard_filter(
88            new PepperFlashClipboardMessageFilter);
89        return scoped_ptr<ResourceHost>(new MessageFilterHost(
90            host_->GetPpapiHost(), instance, params.pp_resource(),
91            clipboard_filter));
92      }
93      case PpapiHostMsg_FlashDRM_Create::ID:
94        return scoped_ptr<ResourceHost>(new PepperFlashDRMHost(
95            host_, instance, params.pp_resource()));
96    }
97  }
98
99  // Permissions for the following interfaces will be checked at the
100  // time of the corresponding instance's methods calls (because
101  // permission check can be performed only on the UI
102  // thread). Currently these interfaces are available only for
103  // whitelisted apps which may not have access to the other private
104  // interfaces.
105  if (message.type() == PpapiHostMsg_Ext_CrxFileSystem_Create::ID) {
106    PepperCrxFileSystemMessageFilter* crxfs_filter =
107        PepperCrxFileSystemMessageFilter::Create(instance, host_);
108    if (!crxfs_filter)
109      return scoped_ptr<ResourceHost>();
110    return scoped_ptr<ResourceHost>(new MessageFilterHost(
111        host, instance, params.pp_resource(), crxfs_filter));
112  }
113
114  return scoped_ptr<ResourceHost>();
115}
116
117}  // namespace chrome
118