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| 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/chromeos/app_mode/kiosk_app_launcher.h" | |
| 6 | |
| 7 #include "base/chromeos/chromeos_version.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "base/memory/weak_ptr.h" | |
| 10 #include "base/message_loop/message_loop.h" | |
| 11 #include "chrome/browser/chromeos/app_mode/kiosk_app_manager.h" | |
| 12 #include "chrome/browser/chromeos/app_mode/startup_app_launcher.h" | |
| 13 #include "chrome/browser/chromeos/login/login_display_host_impl.h" | |
| 14 #include "chrome/browser/chromeos/login/login_utils.h" | |
| 15 #include "chrome/browser/chromeos/login/user_manager.h" | |
| 16 #include "chrome/browser/chromeos/settings/cros_settings.h" | |
| 17 #include "chrome/browser/chromeos/ui/app_launch_view.h" | |
| 18 #include "chrome/browser/lifetime/application_lifetime.h" | |
| 19 #include "chromeos/cryptohome/async_method_caller.h" | |
| 20 #include "chromeos/cryptohome/cryptohome_library.h" | |
| 21 #include "chromeos/dbus/cryptohome_client.h" | |
| 22 #include "chromeos/dbus/dbus_thread_manager.h" | |
| 23 #include "content/public/browser/browser_thread.h" | |
| 24 | |
| 25 using content::BrowserThread; | |
| 26 | |
| 27 namespace chromeos { | |
| 28 | |
| 29 namespace { | |
| 30 | |
| 31 void IgnoreResult(bool mount_success, cryptohome::MountError mount_error) {} | |
| 32 | |
| 33 } // namespace | |
| 34 | |
| 35 // static | |
| 36 KioskAppLauncher* KioskAppLauncher::running_instance_ = NULL; | |
| 37 | |
| 38 //////////////////////////////////////////////////////////////////////////////// | |
| 39 // KioskAppLauncher::CryptohomedChecker ensures cryptohome daemon is up | |
| 40 // and running by issuing an IsMounted call. If the call does not go through | |
| 41 // and chromeos::DBUS_METHOD_CALL_SUCCESS is not returned, it will retry after | |
| 42 // some time out and at the maximum five times before it gives up. Upon | |
| 43 // success, it resumes the launch by calling KioskAppLauncher::StartMount. | |
| 44 | |
| 45 class KioskAppLauncher::CryptohomedChecker | |
| 46 : public base::SupportsWeakPtr<CryptohomedChecker> { | |
| 47 public: | |
| 48 explicit CryptohomedChecker(KioskAppLauncher* launcher) | |
| 49 : launcher_(launcher), | |
| 50 retry_count_(0) { | |
| 51 } | |
| 52 ~CryptohomedChecker() {} | |
| 53 | |
| 54 void StartCheck() { | |
| 55 chromeos::DBusThreadManager::Get()->GetCryptohomeClient()->IsMounted( | |
| 56 base::Bind(&CryptohomedChecker::OnCryptohomeIsMounted, | |
| 57 AsWeakPtr())); | |
| 58 } | |
| 59 | |
| 60 private: | |
| 61 void OnCryptohomeIsMounted(chromeos::DBusMethodCallStatus call_status, | |
| 62 bool is_mounted) { | |
| 63 if (call_status != chromeos::DBUS_METHOD_CALL_SUCCESS) { | |
| 64 const int kMaxRetryTimes = 5; | |
| 65 ++retry_count_; | |
| 66 if (retry_count_ > kMaxRetryTimes) { | |
| 67 LOG(ERROR) << "Could not talk to cryptohomed for launching kiosk app."; | |
| 68 ReportCheckResult(KioskAppLaunchError::CRYPTOHOMED_NOT_RUNNING); | |
| 69 return; | |
| 70 } | |
| 71 | |
| 72 const int retry_delay_in_milliseconds = 500 * (1 << retry_count_); | |
| 73 base::MessageLoop::current()->PostDelayedTask( | |
| 74 FROM_HERE, | |
| 75 base::Bind(&CryptohomedChecker::StartCheck, AsWeakPtr()), | |
| 76 base::TimeDelta::FromMilliseconds(retry_delay_in_milliseconds)); | |
| 77 return; | |
| 78 } | |
| 79 | |
| 80 if (is_mounted) | |
| 81 LOG(ERROR) << "Cryptohome is mounted before launching kiosk app."; | |
| 82 | |
| 83 // Proceed only when cryptohome is not mounded or running on dev box. | |
| 84 if (!is_mounted || !base::chromeos::IsRunningOnChromeOS()) | |
| 85 ReportCheckResult(KioskAppLaunchError::NONE); | |
| 86 else | |
| 87 ReportCheckResult(KioskAppLaunchError::ALREADY_MOUNTED); | |
| 88 } | |
| 89 | |
| 90 void ReportCheckResult(KioskAppLaunchError::Error error) { | |
| 91 if (error == KioskAppLaunchError::NONE) | |
| 92 launcher_->StartMount(); | |
| 93 else | |
| 94 launcher_->ReportLaunchResult(error); | |
| 95 } | |
| 96 | |
| 97 KioskAppLauncher* launcher_; | |
| 98 int retry_count_; | |
| 99 | |
| 100 DISALLOW_COPY_AND_ASSIGN(CryptohomedChecker); | |
| 101 }; | |
| 102 | |
| 103 //////////////////////////////////////////////////////////////////////////////// | |
| 104 // KioskAppLauncher::ProfileLoader creates or loads the app profile. | |
| 105 | |
| 106 class KioskAppLauncher::ProfileLoader : public LoginUtils::Delegate { | |
| 107 public: | |
| 108 ProfileLoader(KioskAppManager* kiosk_app_manager, | |
| 109 KioskAppLauncher* kiosk_app_launcher) | |
| 110 : kiosk_app_launcher_(kiosk_app_launcher), | |
| 111 user_id_(kiosk_app_launcher->user_id_) { | |
| 112 CHECK(!user_id_.empty()); | |
| 113 } | |
| 114 | |
| 115 virtual ~ProfileLoader() { | |
| 116 LoginUtils::Get()->DelegateDeleted(this); | |
| 117 } | |
| 118 | |
| 119 void Start() { | |
| 120 cryptohome::AsyncMethodCaller::GetInstance()->AsyncGetSanitizedUsername( | |
| 121 user_id_, | |
| 122 base::Bind(&ProfileLoader::OnUsernameHashRetrieved, | |
| 123 base::Unretained(this))); | |
| 124 } | |
| 125 | |
| 126 private: | |
| 127 void OnUsernameHashRetrieved(bool success, | |
| 128 const std::string& username_hash) { | |
| 129 if (!success) { | |
| 130 LOG(ERROR) << "Unable to retrieve username hash for user '" << user_id_ | |
| 131 << "'."; | |
| 132 kiosk_app_launcher_->ReportLaunchResult( | |
| 133 KioskAppLaunchError::UNABLE_TO_RETRIEVE_HASH); | |
| 134 return; | |
| 135 } | |
| 136 LoginUtils::Get()->PrepareProfile( | |
| 137 UserContext(user_id_, | |
| 138 std::string(), // password | |
| 139 std::string(), // auth_code | |
| 140 username_hash), | |
| 141 std::string(), // display email | |
| 142 false, // using_oauth | |
| 143 false, // has_cookies | |
| 144 false, // has_active_session | |
| 145 this); | |
| 146 } | |
| 147 | |
| 148 // LoginUtils::Delegate overrides: | |
| 149 virtual void OnProfilePrepared(Profile* profile) OVERRIDE { | |
| 150 kiosk_app_launcher_->OnProfilePrepared(profile); | |
| 151 } | |
| 152 | |
| 153 KioskAppLauncher* kiosk_app_launcher_; | |
| 154 std::string user_id_; | |
| 155 | |
| 156 DISALLOW_COPY_AND_ASSIGN(ProfileLoader); | |
| 157 }; | |
| 158 | |
| 159 //////////////////////////////////////////////////////////////////////////////// | |
| 160 // KioskAppLauncher | |
| 161 | |
| 162 KioskAppLauncher::KioskAppLauncher(KioskAppManager* kiosk_app_manager, | |
| 163 const std::string& app_id) | |
| 164 : kiosk_app_manager_(kiosk_app_manager), | |
| 165 app_id_(app_id), | |
| 166 remove_attempted_(false) { | |
| 167 KioskAppManager::App app; | |
| 168 CHECK(kiosk_app_manager_->GetApp(app_id_, &app)); | |
| 169 user_id_ = app.user_id; | |
| 170 } | |
| 171 | |
| 172 KioskAppLauncher::~KioskAppLauncher() {} | |
| 173 | |
| 174 void KioskAppLauncher::Start() { | |
| 175 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 176 | |
| 177 if (running_instance_) { | |
| 178 LOG(WARNING) << "Unable to launch " << app_id_ << "with a pending launch."; | |
| 179 ReportLaunchResult(KioskAppLaunchError::HAS_PENDING_LAUNCH); | |
| 180 return; | |
| 181 } | |
| 182 | |
| 183 running_instance_ = this; // Reset in ReportLaunchResult. | |
| 184 | |
| 185 // Show app launch splash. The spash is removed either after a successful | |
| 186 // launch or chrome exit because of launch failure. | |
| 187 chromeos::ShowAppLaunchSplashScreen(app_id_); | |
| 188 | |
| 189 // Check cryptohomed. If all goes good, flow goes to StartMount. Otherwise | |
| 190 // it goes to ReportLaunchResult with failure. | |
| 191 crytohomed_checker.reset(new CryptohomedChecker(this)); | |
| 192 crytohomed_checker->StartCheck(); | |
| 193 } | |
| 194 | |
| 195 void KioskAppLauncher::ReportLaunchResult(KioskAppLaunchError::Error error) { | |
| 196 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 197 | |
| 198 running_instance_ = NULL; | |
| 199 | |
| 200 if (error != KioskAppLaunchError::NONE) { | |
| 201 // Saves the error and ends the session to go back to login screen. | |
| 202 KioskAppLaunchError::Save(error); | |
| 203 chrome::AttemptUserExit(); | |
| 204 } | |
| 205 | |
| 206 delete this; | |
| 207 } | |
| 208 | |
| 209 void KioskAppLauncher::StartMount() { | |
| 210 // Nuke old home that uses |app_id_| as cryptohome user id. | |
| 211 // TODO(xiyuan): Remove this after all clients migrated to new home. | |
| 212 cryptohome::AsyncMethodCaller::GetInstance()->AsyncRemove( | |
| 213 app_id_, | |
| 214 base::Bind(&IgnoreResult)); | |
| 215 | |
| 216 cryptohome::AsyncMethodCaller::GetInstance()->AsyncMountPublic( | |
| 217 user_id_, | |
| 218 cryptohome::CREATE_IF_MISSING, | |
| 219 base::Bind(&KioskAppLauncher::MountCallback, | |
| 220 base::Unretained(this))); | |
| 221 } | |
| 222 | |
| 223 void KioskAppLauncher::MountCallback(bool mount_success, | |
| 224 cryptohome::MountError mount_error) { | |
| 225 if (mount_success) { | |
| 226 profile_loader_.reset(new ProfileLoader(kiosk_app_manager_, this)); | |
| 227 profile_loader_->Start(); | |
| 228 return; | |
| 229 } | |
| 230 | |
| 231 if (!remove_attempted_) { | |
| 232 LOG(ERROR) << "Attempt to remove app cryptohome because of mount failure" | |
| 233 << ", mount error=" << mount_error; | |
| 234 | |
| 235 remove_attempted_ = true; | |
| 236 AttemptRemove(); | |
| 237 return; | |
| 238 } | |
| 239 | |
| 240 LOG(ERROR) << "Failed to mount app cryptohome, error=" << mount_error; | |
| 241 ReportLaunchResult(KioskAppLaunchError::UNABLE_TO_MOUNT); | |
| 242 } | |
| 243 | |
| 244 void KioskAppLauncher::AttemptRemove() { | |
| 245 cryptohome::AsyncMethodCaller::GetInstance()->AsyncRemove( | |
| 246 user_id_, | |
| 247 base::Bind(&KioskAppLauncher::RemoveCallback, | |
| 248 base::Unretained(this))); | |
| 249 } | |
| 250 | |
| 251 void KioskAppLauncher::RemoveCallback(bool success, | |
| 252 cryptohome::MountError return_code) { | |
| 253 if (success) { | |
| 254 StartMount(); | |
| 255 return; | |
| 256 } | |
| 257 | |
| 258 LOG(ERROR) << "Failed to remove app cryptohome, erro=" << return_code; | |
| 259 ReportLaunchResult(KioskAppLaunchError::UNABLE_TO_REMOVE); | |
| 260 } | |
| 261 | |
| 262 void KioskAppLauncher::OnProfilePrepared(Profile* profile) { | |
| 263 // StartupAppLauncher deletes itself when done. | |
| 264 (new chromeos::StartupAppLauncher(profile, app_id_))->Start(); | |
| 265 | |
| 266 if (LoginDisplayHostImpl::default_host()) | |
| 267 LoginDisplayHostImpl::default_host()->Finalize(); | |
| 268 UserManager::Get()->SessionStarted(); | |
| 269 | |
| 270 ReportLaunchResult(KioskAppLaunchError::NONE); | |
| 271 } | |
| 272 | |
| 273 } // namespace chromeos | |
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Chromium Code Reviews
Issue 22914008:
Refactor kiosk app launch to be part of login screen UI flow. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src