1// Copyright 2013 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/extensions/chrome_extensions_browser_client.h"
6
7#include "base/command_line.h"
8#include "base/path_service.h"
9#include "base/version.h"
10#include "chrome/browser/app_mode/app_mode_utils.h"
11#include "chrome/browser/browser_process.h"
12#include "chrome/browser/extensions/activity_log/activity_log.h"
13#include "chrome/browser/extensions/api/chrome_extensions_api_client.h"
14#include "chrome/browser/extensions/api/content_settings/content_settings_service.h"
15#include "chrome/browser/extensions/api/generated_api_registration.h"
16#include "chrome/browser/extensions/api/preference/chrome_direct_setting.h"
17#include "chrome/browser/extensions/api/preference/preference_api.h"
18#include "chrome/browser/extensions/api/runtime/chrome_runtime_api_delegate.h"
19#include "chrome/browser/extensions/chrome_app_sorting.h"
20#include "chrome/browser/extensions/chrome_component_extension_resource_manager.h"
21#include "chrome/browser/extensions/chrome_extension_host_delegate.h"
22#include "chrome/browser/extensions/chrome_process_manager_delegate.h"
23#include "chrome/browser/extensions/chrome_url_request_util.h"
24#include "chrome/browser/extensions/event_router_forwarder.h"
25#include "chrome/browser/extensions/extension_system_factory.h"
26#include "chrome/browser/extensions/extension_util.h"
27#include "chrome/browser/external_protocol/external_protocol_handler.h"
28#include "chrome/browser/net/chrome_net_log.h"
29#include "chrome/browser/profiles/profile.h"
30#include "chrome/browser/profiles/profile_manager.h"
31#include "chrome/common/chrome_paths.h"
32#include "chrome/common/chrome_switches.h"
33#include "chrome/common/chrome_version_info.h"
34#include "chrome/common/extensions/features/feature_channel.h"
35#include "chrome/common/pref_names.h"
36#include "extensions/browser/api/generated_api_registration.h"
37#include "extensions/browser/extension_function_registry.h"
38#include "extensions/browser/extension_prefs.h"
39#include "extensions/browser/pref_names.h"
40#include "extensions/browser/url_request_util.h"
41
42#if defined(OS_CHROMEOS)
43#include "chromeos/chromeos_switches.h"
44#endif
45
46namespace extensions {
47
48ChromeExtensionsBrowserClient::ChromeExtensionsBrowserClient() {
49  process_manager_delegate_.reset(new ChromeProcessManagerDelegate);
50  api_client_.reset(new ChromeExtensionsAPIClient);
51  // Only set if it hasn't already been set (e.g. by a test).
52  if (GetCurrentChannel() == GetDefaultChannel())
53    SetCurrentChannel(chrome::VersionInfo::GetChannel());
54}
55
56ChromeExtensionsBrowserClient::~ChromeExtensionsBrowserClient() {}
57
58bool ChromeExtensionsBrowserClient::IsShuttingDown() {
59  return g_browser_process->IsShuttingDown();
60}
61
62bool ChromeExtensionsBrowserClient::AreExtensionsDisabled(
63    const CommandLine& command_line,
64    content::BrowserContext* context) {
65  Profile* profile = static_cast<Profile*>(context);
66  return command_line.HasSwitch(switches::kDisableExtensions) ||
67      profile->GetPrefs()->GetBoolean(prefs::kDisableExtensions);
68}
69
70bool ChromeExtensionsBrowserClient::IsValidContext(
71    content::BrowserContext* context) {
72  Profile* profile = static_cast<Profile*>(context);
73  return g_browser_process->profile_manager()->IsValidProfile(profile);
74}
75
76bool ChromeExtensionsBrowserClient::IsSameContext(
77    content::BrowserContext* first,
78    content::BrowserContext* second) {
79  return static_cast<Profile*>(first)->IsSameProfile(
80      static_cast<Profile*>(second));
81}
82
83bool ChromeExtensionsBrowserClient::HasOffTheRecordContext(
84    content::BrowserContext* context) {
85  return static_cast<Profile*>(context)->HasOffTheRecordProfile();
86}
87
88content::BrowserContext* ChromeExtensionsBrowserClient::GetOffTheRecordContext(
89    content::BrowserContext* context) {
90  return static_cast<Profile*>(context)->GetOffTheRecordProfile();
91}
92
93content::BrowserContext* ChromeExtensionsBrowserClient::GetOriginalContext(
94    content::BrowserContext* context) {
95  return static_cast<Profile*>(context)->GetOriginalProfile();
96}
97
98bool ChromeExtensionsBrowserClient::IsGuestSession(
99    content::BrowserContext* context) const {
100  return static_cast<Profile*>(context)->IsGuestSession();
101}
102
103bool ChromeExtensionsBrowserClient::IsExtensionIncognitoEnabled(
104    const std::string& extension_id,
105    content::BrowserContext* context) const {
106  return IsGuestSession(context)
107      || util::IsIncognitoEnabled(extension_id, context);
108}
109
110bool ChromeExtensionsBrowserClient::CanExtensionCrossIncognito(
111    const extensions::Extension* extension,
112    content::BrowserContext* context) const {
113  return IsGuestSession(context)
114      || util::CanCrossIncognito(extension, context);
115}
116
117net::URLRequestJob*
118ChromeExtensionsBrowserClient::MaybeCreateResourceBundleRequestJob(
119    net::URLRequest* request,
120    net::NetworkDelegate* network_delegate,
121    const base::FilePath& directory_path,
122    const std::string& content_security_policy,
123    bool send_cors_header) {
124  return chrome_url_request_util::MaybeCreateURLRequestResourceBundleJob(
125      request,
126      network_delegate,
127      directory_path,
128      content_security_policy,
129      send_cors_header);
130}
131
132bool ChromeExtensionsBrowserClient::AllowCrossRendererResourceLoad(
133    net::URLRequest* request,
134    bool is_incognito,
135    const Extension* extension,
136    InfoMap* extension_info_map) {
137  bool allowed = false;
138  if (chrome_url_request_util::AllowCrossRendererResourceLoad(
139          request, is_incognito, extension, extension_info_map, &allowed))
140    return allowed;
141
142  // Couldn't determine if resource is allowed. Block the load.
143  return false;
144}
145
146PrefService* ChromeExtensionsBrowserClient::GetPrefServiceForContext(
147    content::BrowserContext* context) {
148  return static_cast<Profile*>(context)->GetPrefs();
149}
150
151void ChromeExtensionsBrowserClient::GetEarlyExtensionPrefsObservers(
152    content::BrowserContext* context,
153    std::vector<ExtensionPrefsObserver*>* observers) const {
154  observers->push_back(ContentSettingsService::Get(context));
155}
156
157ProcessManagerDelegate*
158ChromeExtensionsBrowserClient::GetProcessManagerDelegate() const {
159  return process_manager_delegate_.get();
160}
161
162scoped_ptr<ExtensionHostDelegate>
163ChromeExtensionsBrowserClient::CreateExtensionHostDelegate() {
164  return scoped_ptr<ExtensionHostDelegate>(new ChromeExtensionHostDelegate);
165}
166
167bool ChromeExtensionsBrowserClient::DidVersionUpdate(
168    content::BrowserContext* context) {
169  Profile* profile = static_cast<Profile*>(context);
170
171  // Unit tests may not provide prefs; assume everything is up-to-date.
172  ExtensionPrefs* extension_prefs = ExtensionPrefs::Get(profile);
173  if (!extension_prefs)
174    return false;
175
176  // If we're inside a browser test, then assume prefs are all up-to-date.
177  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kTestType))
178    return false;
179
180  PrefService* pref_service = extension_prefs->pref_service();
181  base::Version last_version;
182  if (pref_service->HasPrefPath(pref_names::kLastChromeVersion)) {
183    std::string last_version_str =
184        pref_service->GetString(pref_names::kLastChromeVersion);
185    last_version = base::Version(last_version_str);
186  }
187
188  chrome::VersionInfo current_version_info;
189  std::string current_version = current_version_info.Version();
190  pref_service->SetString(pref_names::kLastChromeVersion,
191                          current_version);
192
193  // If there was no version string in prefs, assume we're out of date.
194  if (!last_version.IsValid())
195    return true;
196
197  return last_version.IsOlderThan(current_version);
198}
199
200void ChromeExtensionsBrowserClient::PermitExternalProtocolHandler() {
201  ExternalProtocolHandler::PermitLaunchUrl();
202}
203
204scoped_ptr<AppSorting> ChromeExtensionsBrowserClient::CreateAppSorting() {
205  return scoped_ptr<AppSorting>(new ChromeAppSorting());
206}
207
208bool ChromeExtensionsBrowserClient::IsRunningInForcedAppMode() {
209  return chrome::IsRunningInForcedAppMode();
210}
211
212ApiActivityMonitor* ChromeExtensionsBrowserClient::GetApiActivityMonitor(
213    content::BrowserContext* context) {
214  // The ActivityLog monitors and records function calls and events.
215  return ActivityLog::GetInstance(context);
216}
217
218ExtensionSystemProvider*
219ChromeExtensionsBrowserClient::GetExtensionSystemFactory() {
220  return ExtensionSystemFactory::GetInstance();
221}
222
223void ChromeExtensionsBrowserClient::RegisterExtensionFunctions(
224    ExtensionFunctionRegistry* registry) const {
225  // Preferences.
226  registry->RegisterFunction<extensions::GetPreferenceFunction>();
227  registry->RegisterFunction<extensions::SetPreferenceFunction>();
228  registry->RegisterFunction<extensions::ClearPreferenceFunction>();
229
230  // Direct Preference Access for Component Extensions.
231  registry->RegisterFunction<
232      extensions::chromedirectsetting::GetDirectSettingFunction>();
233  registry->RegisterFunction<
234      extensions::chromedirectsetting::SetDirectSettingFunction>();
235  registry->RegisterFunction<
236      extensions::chromedirectsetting::ClearDirectSettingFunction>();
237
238  // Generated APIs from lower-level modules.
239  extensions::core_api::GeneratedFunctionRegistry::RegisterAll(registry);
240
241  // Generated APIs from Chrome.
242  extensions::api::GeneratedFunctionRegistry::RegisterAll(registry);
243}
244
245ComponentExtensionResourceManager*
246ChromeExtensionsBrowserClient::GetComponentExtensionResourceManager() {
247  if (!resource_manager_)
248    resource_manager_.reset(new ChromeComponentExtensionResourceManager());
249  return resource_manager_.get();
250}
251
252void ChromeExtensionsBrowserClient::BroadcastEventToRenderers(
253    const std::string& event_name,
254    scoped_ptr<base::ListValue> args) {
255  g_browser_process->extension_event_router_forwarder()
256      ->BroadcastEventToRenderers(event_name, args.Pass(), GURL());
257}
258
259net::NetLog* ChromeExtensionsBrowserClient::GetNetLog() {
260  return g_browser_process->net_log();
261}
262
263scoped_ptr<extensions::RuntimeAPIDelegate>
264ChromeExtensionsBrowserClient::CreateRuntimeAPIDelegate(
265    content::BrowserContext* context) const {
266  return scoped_ptr<extensions::RuntimeAPIDelegate>(
267      new ChromeRuntimeAPIDelegate(context));
268}
269
270}  // namespace extensions
271