ContextImpl.java revision 7d19e0242faac8017033dabb872cdf1542fa184c
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import com.android.internal.policy.PolicyManager; 20 21import android.bluetooth.BluetoothAdapter; 22import android.content.BroadcastReceiver; 23import android.content.ComponentName; 24import android.content.ContentResolver; 25import android.content.Context; 26import android.content.ContextWrapper; 27import android.content.IContentProvider; 28import android.content.Intent; 29import android.content.IntentFilter; 30import android.content.IIntentReceiver; 31import android.content.IntentSender; 32import android.content.ReceiverCallNotAllowedException; 33import android.content.ServiceConnection; 34import android.content.SharedPreferences; 35import android.content.pm.ApplicationInfo; 36import android.content.pm.IPackageManager; 37import android.content.pm.PackageManager; 38import android.content.res.AssetManager; 39import android.content.res.CompatibilityInfo; 40import android.content.res.Resources; 41import android.database.DatabaseErrorHandler; 42import android.database.sqlite.SQLiteDatabase; 43import android.database.sqlite.SQLiteDatabase.CursorFactory; 44import android.graphics.Bitmap; 45import android.graphics.drawable.Drawable; 46import android.hardware.ISerialManager; 47import android.hardware.SensorManager; 48import android.hardware.SerialManager; 49import android.hardware.SystemSensorManager; 50import android.hardware.display.DisplayManager; 51import android.hardware.input.IInputManager; 52import android.hardware.input.InputManager; 53import android.hardware.usb.IUsbManager; 54import android.hardware.usb.UsbManager; 55import android.location.CountryDetector; 56import android.location.ICountryDetector; 57import android.location.ILocationManager; 58import android.location.LocationManager; 59import android.media.AudioManager; 60import android.media.MediaRouter; 61import android.net.ConnectivityManager; 62import android.net.IConnectivityManager; 63import android.net.INetworkPolicyManager; 64import android.net.NetworkPolicyManager; 65import android.net.ThrottleManager; 66import android.net.IThrottleManager; 67import android.net.Uri; 68import android.net.nsd.INsdManager; 69import android.net.nsd.NsdManager; 70import android.net.wifi.IWifiManager; 71import android.net.wifi.WifiManager; 72import android.net.wifi.p2p.IWifiP2pManager; 73import android.net.wifi.p2p.WifiP2pManager; 74import android.nfc.NfcManager; 75import android.os.Binder; 76import android.os.Bundle; 77import android.os.DropBoxManager; 78import android.os.Environment; 79import android.os.FileUtils; 80import android.os.Handler; 81import android.os.IBinder; 82import android.os.IPowerManager; 83import android.os.Looper; 84import android.os.PowerManager; 85import android.os.Process; 86import android.os.RemoteException; 87import android.os.ServiceManager; 88import android.os.UserId; 89import android.os.SystemVibrator; 90import android.os.storage.StorageManager; 91import android.telephony.TelephonyManager; 92import android.content.ClipboardManager; 93import android.util.AndroidRuntimeException; 94import android.util.Log; 95import android.view.ContextThemeWrapper; 96import android.view.WindowManagerImpl; 97import android.view.accessibility.AccessibilityManager; 98import android.view.inputmethod.InputMethodManager; 99import android.view.textservice.TextServicesManager; 100import android.accounts.AccountManager; 101import android.accounts.IAccountManager; 102import android.app.admin.DevicePolicyManager; 103import com.android.internal.os.IDropBoxManagerService; 104 105import java.io.File; 106import java.io.FileInputStream; 107import java.io.FileNotFoundException; 108import java.io.FileOutputStream; 109import java.io.IOException; 110import java.io.InputStream; 111import java.util.ArrayList; 112import java.util.HashMap; 113 114class ReceiverRestrictedContext extends ContextWrapper { 115 ReceiverRestrictedContext(Context base) { 116 super(base); 117 } 118 119 @Override 120 public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter) { 121 return registerReceiver(receiver, filter, null, null); 122 } 123 124 @Override 125 public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter, 126 String broadcastPermission, Handler scheduler) { 127 throw new ReceiverCallNotAllowedException( 128 "IntentReceiver components are not allowed to register to receive intents"); 129 //ex.fillInStackTrace(); 130 //Log.e("IntentReceiver", ex.getMessage(), ex); 131 //return mContext.registerReceiver(receiver, filter, broadcastPermission, 132 // scheduler); 133 } 134 135 @Override 136 public boolean bindService(Intent service, ServiceConnection conn, int flags) { 137 throw new ReceiverCallNotAllowedException( 138 "IntentReceiver components are not allowed to bind to services"); 139 //ex.fillInStackTrace(); 140 //Log.e("IntentReceiver", ex.getMessage(), ex); 141 //return mContext.bindService(service, interfaceName, conn, flags); 142 } 143} 144 145/** 146 * Common implementation of Context API, which provides the base 147 * context object for Activity and other application components. 148 */ 149class ContextImpl extends Context { 150 private final static String TAG = "ApplicationContext"; 151 private final static boolean DEBUG = false; 152 153 private static final HashMap<String, SharedPreferencesImpl> sSharedPrefs = 154 new HashMap<String, SharedPreferencesImpl>(); 155 156 /*package*/ LoadedApk mPackageInfo; 157 private String mBasePackageName; 158 private Resources mResources; 159 /*package*/ ActivityThread mMainThread; 160 private Context mOuterContext; 161 private IBinder mActivityToken = null; 162 private ApplicationContentResolver mContentResolver; 163 private int mThemeResource = 0; 164 private Resources.Theme mTheme = null; 165 private PackageManager mPackageManager; 166 private Context mReceiverRestrictedContext = null; 167 private boolean mRestricted; 168 169 private final Object mSync = new Object(); 170 171 private File mDatabasesDir; 172 private File mPreferencesDir; 173 private File mFilesDir; 174 private File mCacheDir; 175 private File mObbDir; 176 private File mExternalFilesDir; 177 private File mExternalCacheDir; 178 179 private static final String[] EMPTY_FILE_LIST = {}; 180 181 /** 182 * Override this class when the system service constructor needs a 183 * ContextImpl. Else, use StaticServiceFetcher below. 184 */ 185 /*package*/ static class ServiceFetcher { 186 int mContextCacheIndex = -1; 187 188 /** 189 * Main entrypoint; only override if you don't need caching. 190 */ 191 public Object getService(ContextImpl ctx) { 192 ArrayList<Object> cache = ctx.mServiceCache; 193 Object service; 194 synchronized (cache) { 195 if (cache.size() == 0) { 196 // Initialize the cache vector on first access. 197 // At this point sNextPerContextServiceCacheIndex 198 // is the number of potential services that are 199 // cached per-Context. 200 for (int i = 0; i < sNextPerContextServiceCacheIndex; i++) { 201 cache.add(null); 202 } 203 } else { 204 service = cache.get(mContextCacheIndex); 205 if (service != null) { 206 return service; 207 } 208 } 209 service = createService(ctx); 210 cache.set(mContextCacheIndex, service); 211 return service; 212 } 213 } 214 215 /** 216 * Override this to create a new per-Context instance of the 217 * service. getService() will handle locking and caching. 218 */ 219 public Object createService(ContextImpl ctx) { 220 throw new RuntimeException("Not implemented"); 221 } 222 } 223 224 /** 225 * Override this class for services to be cached process-wide. 226 */ 227 abstract static class StaticServiceFetcher extends ServiceFetcher { 228 private Object mCachedInstance; 229 230 @Override 231 public final Object getService(ContextImpl unused) { 232 synchronized (StaticServiceFetcher.this) { 233 Object service = mCachedInstance; 234 if (service != null) { 235 return service; 236 } 237 return mCachedInstance = createStaticService(); 238 } 239 } 240 241 public abstract Object createStaticService(); 242 } 243 244 private static final HashMap<String, ServiceFetcher> SYSTEM_SERVICE_MAP = 245 new HashMap<String, ServiceFetcher>(); 246 247 private static int sNextPerContextServiceCacheIndex = 0; 248 private static void registerService(String serviceName, ServiceFetcher fetcher) { 249 if (!(fetcher instanceof StaticServiceFetcher)) { 250 fetcher.mContextCacheIndex = sNextPerContextServiceCacheIndex++; 251 } 252 SYSTEM_SERVICE_MAP.put(serviceName, fetcher); 253 } 254 255 // This one's defined separately and given a variable name so it 256 // can be re-used by getWallpaperManager(), avoiding a HashMap 257 // lookup. 258 private static ServiceFetcher WALLPAPER_FETCHER = new ServiceFetcher() { 259 public Object createService(ContextImpl ctx) { 260 return new WallpaperManager(ctx.getOuterContext(), 261 ctx.mMainThread.getHandler()); 262 }}; 263 264 static { 265 registerService(ACCESSIBILITY_SERVICE, new ServiceFetcher() { 266 public Object getService(ContextImpl ctx) { 267 return AccessibilityManager.getInstance(ctx); 268 }}); 269 270 registerService(ACCOUNT_SERVICE, new ServiceFetcher() { 271 public Object createService(ContextImpl ctx) { 272 IBinder b = ServiceManager.getService(ACCOUNT_SERVICE); 273 IAccountManager service = IAccountManager.Stub.asInterface(b); 274 return new AccountManager(ctx, service); 275 }}); 276 277 registerService(ACTIVITY_SERVICE, new ServiceFetcher() { 278 public Object createService(ContextImpl ctx) { 279 return new ActivityManager(ctx.getOuterContext(), ctx.mMainThread.getHandler()); 280 }}); 281 282 registerService(ALARM_SERVICE, new StaticServiceFetcher() { 283 public Object createStaticService() { 284 IBinder b = ServiceManager.getService(ALARM_SERVICE); 285 IAlarmManager service = IAlarmManager.Stub.asInterface(b); 286 return new AlarmManager(service); 287 }}); 288 289 registerService(AUDIO_SERVICE, new ServiceFetcher() { 290 public Object createService(ContextImpl ctx) { 291 return new AudioManager(ctx); 292 }}); 293 294 registerService(MEDIA_ROUTER_SERVICE, new ServiceFetcher() { 295 public Object createService(ContextImpl ctx) { 296 return new MediaRouter(ctx); 297 }}); 298 299 registerService(BLUETOOTH_SERVICE, new ServiceFetcher() { 300 public Object createService(ContextImpl ctx) { 301 return BluetoothAdapter.getDefaultAdapter(); 302 }}); 303 304 registerService(CLIPBOARD_SERVICE, new ServiceFetcher() { 305 public Object createService(ContextImpl ctx) { 306 return new ClipboardManager(ctx.getOuterContext(), 307 ctx.mMainThread.getHandler()); 308 }}); 309 310 registerService(CONNECTIVITY_SERVICE, new StaticServiceFetcher() { 311 public Object createStaticService() { 312 IBinder b = ServiceManager.getService(CONNECTIVITY_SERVICE); 313 return new ConnectivityManager(IConnectivityManager.Stub.asInterface(b)); 314 }}); 315 316 registerService(COUNTRY_DETECTOR, new StaticServiceFetcher() { 317 public Object createStaticService() { 318 IBinder b = ServiceManager.getService(COUNTRY_DETECTOR); 319 return new CountryDetector(ICountryDetector.Stub.asInterface(b)); 320 }}); 321 322 registerService(DEVICE_POLICY_SERVICE, new ServiceFetcher() { 323 public Object createService(ContextImpl ctx) { 324 return DevicePolicyManager.create(ctx, ctx.mMainThread.getHandler()); 325 }}); 326 327 registerService(DOWNLOAD_SERVICE, new ServiceFetcher() { 328 public Object createService(ContextImpl ctx) { 329 return new DownloadManager(ctx.getContentResolver(), ctx.getPackageName()); 330 }}); 331 332 registerService(NFC_SERVICE, new ServiceFetcher() { 333 public Object createService(ContextImpl ctx) { 334 return new NfcManager(ctx); 335 }}); 336 337 registerService(DROPBOX_SERVICE, new StaticServiceFetcher() { 338 public Object createStaticService() { 339 return createDropBoxManager(); 340 }}); 341 342 registerService(INPUT_SERVICE, new StaticServiceFetcher() { 343 public Object createStaticService() { 344 return InputManager.getInstance(); 345 }}); 346 347 registerService(DISPLAY_SERVICE, new StaticServiceFetcher() { 348 public Object createStaticService() { 349 return DisplayManager.getInstance(); 350 }}); 351 352 registerService(INPUT_METHOD_SERVICE, new ServiceFetcher() { 353 public Object createService(ContextImpl ctx) { 354 return InputMethodManager.getInstance(ctx); 355 }}); 356 357 registerService(TEXT_SERVICES_MANAGER_SERVICE, new ServiceFetcher() { 358 public Object createService(ContextImpl ctx) { 359 return TextServicesManager.getInstance(); 360 }}); 361 362 registerService(KEYGUARD_SERVICE, new ServiceFetcher() { 363 public Object getService(ContextImpl ctx) { 364 // TODO: why isn't this caching it? It wasn't 365 // before, so I'm preserving the old behavior and 366 // using getService(), instead of createService() 367 // which would do the caching. 368 return new KeyguardManager(); 369 }}); 370 371 registerService(LAYOUT_INFLATER_SERVICE, new ServiceFetcher() { 372 public Object createService(ContextImpl ctx) { 373 return PolicyManager.makeNewLayoutInflater(ctx.getOuterContext()); 374 }}); 375 376 registerService(LOCATION_SERVICE, new ServiceFetcher() { 377 public Object createService(ContextImpl ctx) { 378 IBinder b = ServiceManager.getService(LOCATION_SERVICE); 379 return new LocationManager(ctx, ILocationManager.Stub.asInterface(b)); 380 }}); 381 382 registerService(NETWORK_POLICY_SERVICE, new ServiceFetcher() { 383 @Override 384 public Object createService(ContextImpl ctx) { 385 return new NetworkPolicyManager(INetworkPolicyManager.Stub.asInterface( 386 ServiceManager.getService(NETWORK_POLICY_SERVICE))); 387 } 388 }); 389 390 registerService(NOTIFICATION_SERVICE, new ServiceFetcher() { 391 public Object createService(ContextImpl ctx) { 392 final Context outerContext = ctx.getOuterContext(); 393 return new NotificationManager( 394 new ContextThemeWrapper(outerContext, 395 Resources.selectSystemTheme(0, 396 outerContext.getApplicationInfo().targetSdkVersion, 397 com.android.internal.R.style.Theme_Dialog, 398 com.android.internal.R.style.Theme_Holo_Dialog, 399 com.android.internal.R.style.Theme_DeviceDefault_Dialog)), 400 ctx.mMainThread.getHandler()); 401 }}); 402 403 registerService(NSD_SERVICE, new ServiceFetcher() { 404 @Override 405 public Object createService(ContextImpl ctx) { 406 IBinder b = ServiceManager.getService(NSD_SERVICE); 407 INsdManager service = INsdManager.Stub.asInterface(b); 408 return new NsdManager(ctx.getOuterContext(), service); 409 }}); 410 411 // Note: this was previously cached in a static variable, but 412 // constructed using mMainThread.getHandler(), so converting 413 // it to be a regular Context-cached service... 414 registerService(POWER_SERVICE, new ServiceFetcher() { 415 public Object createService(ContextImpl ctx) { 416 IBinder b = ServiceManager.getService(POWER_SERVICE); 417 IPowerManager service = IPowerManager.Stub.asInterface(b); 418 return new PowerManager(service, ctx.mMainThread.getHandler()); 419 }}); 420 421 registerService(SEARCH_SERVICE, new ServiceFetcher() { 422 public Object createService(ContextImpl ctx) { 423 return new SearchManager(ctx.getOuterContext(), 424 ctx.mMainThread.getHandler()); 425 }}); 426 427 registerService(SENSOR_SERVICE, new ServiceFetcher() { 428 public Object createService(ContextImpl ctx) { 429 return new SystemSensorManager(ctx.mMainThread.getHandler().getLooper()); 430 }}); 431 432 registerService(STATUS_BAR_SERVICE, new ServiceFetcher() { 433 public Object createService(ContextImpl ctx) { 434 return new StatusBarManager(ctx.getOuterContext()); 435 }}); 436 437 registerService(STORAGE_SERVICE, new ServiceFetcher() { 438 public Object createService(ContextImpl ctx) { 439 try { 440 return new StorageManager(ctx.mMainThread.getHandler().getLooper()); 441 } catch (RemoteException rex) { 442 Log.e(TAG, "Failed to create StorageManager", rex); 443 return null; 444 } 445 }}); 446 447 registerService(TELEPHONY_SERVICE, new ServiceFetcher() { 448 public Object createService(ContextImpl ctx) { 449 return new TelephonyManager(ctx.getOuterContext()); 450 }}); 451 452 registerService(THROTTLE_SERVICE, new StaticServiceFetcher() { 453 public Object createStaticService() { 454 IBinder b = ServiceManager.getService(THROTTLE_SERVICE); 455 return new ThrottleManager(IThrottleManager.Stub.asInterface(b)); 456 }}); 457 458 registerService(UI_MODE_SERVICE, new ServiceFetcher() { 459 public Object createService(ContextImpl ctx) { 460 return new UiModeManager(); 461 }}); 462 463 registerService(USB_SERVICE, new ServiceFetcher() { 464 public Object createService(ContextImpl ctx) { 465 IBinder b = ServiceManager.getService(USB_SERVICE); 466 return new UsbManager(ctx, IUsbManager.Stub.asInterface(b)); 467 }}); 468 469 registerService(SERIAL_SERVICE, new ServiceFetcher() { 470 public Object createService(ContextImpl ctx) { 471 IBinder b = ServiceManager.getService(SERIAL_SERVICE); 472 return new SerialManager(ctx, ISerialManager.Stub.asInterface(b)); 473 }}); 474 475 registerService(VIBRATOR_SERVICE, new ServiceFetcher() { 476 public Object createService(ContextImpl ctx) { 477 return new SystemVibrator(); 478 }}); 479 480 registerService(WALLPAPER_SERVICE, WALLPAPER_FETCHER); 481 482 registerService(WIFI_SERVICE, new ServiceFetcher() { 483 public Object createService(ContextImpl ctx) { 484 IBinder b = ServiceManager.getService(WIFI_SERVICE); 485 IWifiManager service = IWifiManager.Stub.asInterface(b); 486 return new WifiManager(ctx.getOuterContext(), service); 487 }}); 488 489 registerService(WIFI_P2P_SERVICE, new ServiceFetcher() { 490 public Object createService(ContextImpl ctx) { 491 IBinder b = ServiceManager.getService(WIFI_P2P_SERVICE); 492 IWifiP2pManager service = IWifiP2pManager.Stub.asInterface(b); 493 return new WifiP2pManager(service); 494 }}); 495 496 registerService(WINDOW_SERVICE, new ServiceFetcher() { 497 public Object getService(ContextImpl ctx) { 498 return WindowManagerImpl.getDefault().makeCompatible( 499 ctx.mPackageInfo.mCompatibilityInfo); 500 }}); 501 } 502 503 static ContextImpl getImpl(Context context) { 504 Context nextContext; 505 while ((context instanceof ContextWrapper) && 506 (nextContext=((ContextWrapper)context).getBaseContext()) != null) { 507 context = nextContext; 508 } 509 return (ContextImpl)context; 510 } 511 512 // The system service cache for the system services that are 513 // cached per-ContextImpl. Package-scoped to avoid accessor 514 // methods. 515 final ArrayList<Object> mServiceCache = new ArrayList<Object>(); 516 517 @Override 518 public AssetManager getAssets() { 519 return mResources.getAssets(); 520 } 521 522 @Override 523 public Resources getResources() { 524 return mResources; 525 } 526 527 @Override 528 public PackageManager getPackageManager() { 529 if (mPackageManager != null) { 530 return mPackageManager; 531 } 532 533 IPackageManager pm = ActivityThread.getPackageManager(); 534 if (pm != null) { 535 // Doesn't matter if we make more than one instance. 536 return (mPackageManager = new ApplicationPackageManager(this, pm)); 537 } 538 539 return null; 540 } 541 542 @Override 543 public ContentResolver getContentResolver() { 544 return mContentResolver; 545 } 546 547 @Override 548 public Looper getMainLooper() { 549 return mMainThread.getLooper(); 550 } 551 552 @Override 553 public Context getApplicationContext() { 554 return (mPackageInfo != null) ? 555 mPackageInfo.getApplication() : mMainThread.getApplication(); 556 } 557 558 @Override 559 public void setTheme(int resid) { 560 mThemeResource = resid; 561 } 562 563 @Override 564 public int getThemeResId() { 565 return mThemeResource; 566 } 567 568 @Override 569 public Resources.Theme getTheme() { 570 if (mTheme == null) { 571 mThemeResource = Resources.selectDefaultTheme(mThemeResource, 572 getOuterContext().getApplicationInfo().targetSdkVersion); 573 mTheme = mResources.newTheme(); 574 mTheme.applyStyle(mThemeResource, true); 575 } 576 return mTheme; 577 } 578 579 @Override 580 public ClassLoader getClassLoader() { 581 return mPackageInfo != null ? 582 mPackageInfo.getClassLoader() : ClassLoader.getSystemClassLoader(); 583 } 584 585 @Override 586 public String getPackageName() { 587 if (mPackageInfo != null) { 588 return mPackageInfo.getPackageName(); 589 } 590 throw new RuntimeException("Not supported in system context"); 591 } 592 593 @Override 594 public ApplicationInfo getApplicationInfo() { 595 if (mPackageInfo != null) { 596 return mPackageInfo.getApplicationInfo(); 597 } 598 throw new RuntimeException("Not supported in system context"); 599 } 600 601 @Override 602 public String getPackageResourcePath() { 603 if (mPackageInfo != null) { 604 return mPackageInfo.getResDir(); 605 } 606 throw new RuntimeException("Not supported in system context"); 607 } 608 609 @Override 610 public String getPackageCodePath() { 611 if (mPackageInfo != null) { 612 return mPackageInfo.getAppDir(); 613 } 614 throw new RuntimeException("Not supported in system context"); 615 } 616 617 public File getSharedPrefsFile(String name) { 618 return makeFilename(getPreferencesDir(), name + ".xml"); 619 } 620 621 @Override 622 public SharedPreferences getSharedPreferences(String name, int mode) { 623 SharedPreferencesImpl sp; 624 synchronized (sSharedPrefs) { 625 sp = sSharedPrefs.get(name); 626 if (sp == null) { 627 File prefsFile = getSharedPrefsFile(name); 628 sp = new SharedPreferencesImpl(prefsFile, mode); 629 sSharedPrefs.put(name, sp); 630 return sp; 631 } 632 } 633 if ((mode & Context.MODE_MULTI_PROCESS) != 0 || 634 getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) { 635 // If somebody else (some other process) changed the prefs 636 // file behind our back, we reload it. This has been the 637 // historical (if undocumented) behavior. 638 sp.startReloadIfChangedUnexpectedly(); 639 } 640 return sp; 641 } 642 643 private File getPreferencesDir() { 644 synchronized (mSync) { 645 if (mPreferencesDir == null) { 646 mPreferencesDir = new File(getDataDirFile(), "shared_prefs"); 647 } 648 return mPreferencesDir; 649 } 650 } 651 652 @Override 653 public FileInputStream openFileInput(String name) 654 throws FileNotFoundException { 655 File f = makeFilename(getFilesDir(), name); 656 return new FileInputStream(f); 657 } 658 659 @Override 660 public FileOutputStream openFileOutput(String name, int mode) 661 throws FileNotFoundException { 662 final boolean append = (mode&MODE_APPEND) != 0; 663 File f = makeFilename(getFilesDir(), name); 664 try { 665 FileOutputStream fos = new FileOutputStream(f, append); 666 setFilePermissionsFromMode(f.getPath(), mode, 0); 667 return fos; 668 } catch (FileNotFoundException e) { 669 } 670 671 File parent = f.getParentFile(); 672 parent.mkdir(); 673 FileUtils.setPermissions( 674 parent.getPath(), 675 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 676 -1, -1); 677 FileOutputStream fos = new FileOutputStream(f, append); 678 setFilePermissionsFromMode(f.getPath(), mode, 0); 679 return fos; 680 } 681 682 @Override 683 public boolean deleteFile(String name) { 684 File f = makeFilename(getFilesDir(), name); 685 return f.delete(); 686 } 687 688 @Override 689 public File getFilesDir() { 690 synchronized (mSync) { 691 if (mFilesDir == null) { 692 mFilesDir = new File(getDataDirFile(), "files"); 693 } 694 if (!mFilesDir.exists()) { 695 if(!mFilesDir.mkdirs()) { 696 Log.w(TAG, "Unable to create files directory " + mFilesDir.getPath()); 697 return null; 698 } 699 FileUtils.setPermissions( 700 mFilesDir.getPath(), 701 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 702 -1, -1); 703 } 704 return mFilesDir; 705 } 706 } 707 708 @Override 709 public File getExternalFilesDir(String type) { 710 synchronized (mSync) { 711 if (mExternalFilesDir == null) { 712 mExternalFilesDir = Environment.getExternalStorageAppFilesDirectory( 713 getPackageName()); 714 } 715 if (!mExternalFilesDir.exists()) { 716 try { 717 (new File(Environment.getExternalStorageAndroidDataDir(), 718 ".nomedia")).createNewFile(); 719 } catch (IOException e) { 720 } 721 if (!mExternalFilesDir.mkdirs()) { 722 Log.w(TAG, "Unable to create external files directory"); 723 return null; 724 } 725 } 726 if (type == null) { 727 return mExternalFilesDir; 728 } 729 File dir = new File(mExternalFilesDir, type); 730 if (!dir.exists()) { 731 if (!dir.mkdirs()) { 732 Log.w(TAG, "Unable to create external media directory " + dir); 733 return null; 734 } 735 } 736 return dir; 737 } 738 } 739 740 @Override 741 public File getObbDir() { 742 synchronized (mSync) { 743 if (mObbDir == null) { 744 mObbDir = Environment.getExternalStorageAppObbDirectory( 745 getPackageName()); 746 } 747 return mObbDir; 748 } 749 } 750 751 @Override 752 public File getCacheDir() { 753 synchronized (mSync) { 754 if (mCacheDir == null) { 755 mCacheDir = new File(getDataDirFile(), "cache"); 756 } 757 if (!mCacheDir.exists()) { 758 if(!mCacheDir.mkdirs()) { 759 Log.w(TAG, "Unable to create cache directory"); 760 return null; 761 } 762 FileUtils.setPermissions( 763 mCacheDir.getPath(), 764 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 765 -1, -1); 766 } 767 } 768 return mCacheDir; 769 } 770 771 @Override 772 public File getExternalCacheDir() { 773 synchronized (mSync) { 774 if (mExternalCacheDir == null) { 775 mExternalCacheDir = Environment.getExternalStorageAppCacheDirectory( 776 getPackageName()); 777 } 778 if (!mExternalCacheDir.exists()) { 779 try { 780 (new File(Environment.getExternalStorageAndroidDataDir(), 781 ".nomedia")).createNewFile(); 782 } catch (IOException e) { 783 } 784 if (!mExternalCacheDir.mkdirs()) { 785 Log.w(TAG, "Unable to create external cache directory"); 786 return null; 787 } 788 } 789 return mExternalCacheDir; 790 } 791 } 792 793 @Override 794 public File getFileStreamPath(String name) { 795 return makeFilename(getFilesDir(), name); 796 } 797 798 @Override 799 public String[] fileList() { 800 final String[] list = getFilesDir().list(); 801 return (list != null) ? list : EMPTY_FILE_LIST; 802 } 803 804 @Override 805 public SQLiteDatabase openOrCreateDatabase(String name, int mode, CursorFactory factory) { 806 return openOrCreateDatabase(name, mode, factory, null); 807 } 808 809 @Override 810 public SQLiteDatabase openOrCreateDatabase(String name, int mode, CursorFactory factory, 811 DatabaseErrorHandler errorHandler) { 812 File f = validateFilePath(name, true); 813 int flags = SQLiteDatabase.CREATE_IF_NECESSARY; 814 if ((mode & MODE_ENABLE_WRITE_AHEAD_LOGGING) != 0) { 815 flags |= SQLiteDatabase.ENABLE_WRITE_AHEAD_LOGGING; 816 } 817 SQLiteDatabase db = SQLiteDatabase.openDatabase(f.getPath(), factory, flags, errorHandler); 818 setFilePermissionsFromMode(f.getPath(), mode, 0); 819 return db; 820 } 821 822 @Override 823 public boolean deleteDatabase(String name) { 824 try { 825 File f = validateFilePath(name, false); 826 return SQLiteDatabase.deleteDatabase(f); 827 } catch (Exception e) { 828 } 829 return false; 830 } 831 832 @Override 833 public File getDatabasePath(String name) { 834 return validateFilePath(name, false); 835 } 836 837 @Override 838 public String[] databaseList() { 839 final String[] list = getDatabasesDir().list(); 840 return (list != null) ? list : EMPTY_FILE_LIST; 841 } 842 843 844 private File getDatabasesDir() { 845 synchronized (mSync) { 846 if (mDatabasesDir == null) { 847 mDatabasesDir = new File(getDataDirFile(), "databases"); 848 } 849 if (mDatabasesDir.getPath().equals("databases")) { 850 mDatabasesDir = new File("/data/system"); 851 } 852 return mDatabasesDir; 853 } 854 } 855 856 @Override 857 public Drawable getWallpaper() { 858 return getWallpaperManager().getDrawable(); 859 } 860 861 @Override 862 public Drawable peekWallpaper() { 863 return getWallpaperManager().peekDrawable(); 864 } 865 866 @Override 867 public int getWallpaperDesiredMinimumWidth() { 868 return getWallpaperManager().getDesiredMinimumWidth(); 869 } 870 871 @Override 872 public int getWallpaperDesiredMinimumHeight() { 873 return getWallpaperManager().getDesiredMinimumHeight(); 874 } 875 876 @Override 877 public void setWallpaper(Bitmap bitmap) throws IOException { 878 getWallpaperManager().setBitmap(bitmap); 879 } 880 881 @Override 882 public void setWallpaper(InputStream data) throws IOException { 883 getWallpaperManager().setStream(data); 884 } 885 886 @Override 887 public void clearWallpaper() throws IOException { 888 getWallpaperManager().clear(); 889 } 890 891 @Override 892 public void startActivity(Intent intent) { 893 startActivity(intent, null); 894 } 895 896 @Override 897 public void startActivity(Intent intent, Bundle options) { 898 if ((intent.getFlags()&Intent.FLAG_ACTIVITY_NEW_TASK) == 0) { 899 throw new AndroidRuntimeException( 900 "Calling startActivity() from outside of an Activity " 901 + " context requires the FLAG_ACTIVITY_NEW_TASK flag." 902 + " Is this really what you want?"); 903 } 904 mMainThread.getInstrumentation().execStartActivity( 905 getOuterContext(), mMainThread.getApplicationThread(), null, 906 (Activity)null, intent, -1, options); 907 } 908 909 @Override 910 public void startActivities(Intent[] intents) { 911 startActivities(intents, null); 912 } 913 914 @Override 915 public void startActivities(Intent[] intents, Bundle options) { 916 if ((intents[0].getFlags()&Intent.FLAG_ACTIVITY_NEW_TASK) == 0) { 917 throw new AndroidRuntimeException( 918 "Calling startActivities() from outside of an Activity " 919 + " context requires the FLAG_ACTIVITY_NEW_TASK flag on first Intent." 920 + " Is this really what you want?"); 921 } 922 mMainThread.getInstrumentation().execStartActivities( 923 getOuterContext(), mMainThread.getApplicationThread(), null, 924 (Activity)null, intents, options); 925 } 926 927 @Override 928 public void startIntentSender(IntentSender intent, 929 Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags) 930 throws IntentSender.SendIntentException { 931 startIntentSender(intent, fillInIntent, flagsMask, flagsValues, extraFlags, null); 932 } 933 934 @Override 935 public void startIntentSender(IntentSender intent, Intent fillInIntent, 936 int flagsMask, int flagsValues, int extraFlags, Bundle options) 937 throws IntentSender.SendIntentException { 938 try { 939 String resolvedType = null; 940 if (fillInIntent != null) { 941 fillInIntent.setAllowFds(false); 942 resolvedType = fillInIntent.resolveTypeIfNeeded(getContentResolver()); 943 } 944 int result = ActivityManagerNative.getDefault() 945 .startActivityIntentSender(mMainThread.getApplicationThread(), intent, 946 fillInIntent, resolvedType, null, null, 947 0, flagsMask, flagsValues, options); 948 if (result == ActivityManager.START_CANCELED) { 949 throw new IntentSender.SendIntentException(); 950 } 951 Instrumentation.checkStartActivityResult(result, null); 952 } catch (RemoteException e) { 953 } 954 } 955 956 @Override 957 public void sendBroadcast(Intent intent) { 958 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 959 try { 960 intent.setAllowFds(false); 961 ActivityManagerNative.getDefault().broadcastIntent( 962 mMainThread.getApplicationThread(), intent, resolvedType, null, 963 Activity.RESULT_OK, null, null, null, false, false, 964 Binder.getOrigCallingUser()); 965 } catch (RemoteException e) { 966 } 967 } 968 969 @Override 970 public void sendBroadcast(Intent intent, String receiverPermission) { 971 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 972 try { 973 intent.setAllowFds(false); 974 ActivityManagerNative.getDefault().broadcastIntent( 975 mMainThread.getApplicationThread(), intent, resolvedType, null, 976 Activity.RESULT_OK, null, null, receiverPermission, false, false, 977 Binder.getOrigCallingUser()); 978 } catch (RemoteException e) { 979 } 980 } 981 982 @Override 983 public void sendOrderedBroadcast(Intent intent, 984 String receiverPermission) { 985 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 986 try { 987 intent.setAllowFds(false); 988 ActivityManagerNative.getDefault().broadcastIntent( 989 mMainThread.getApplicationThread(), intent, resolvedType, null, 990 Activity.RESULT_OK, null, null, receiverPermission, true, false, 991 Binder.getOrigCallingUser()); 992 } catch (RemoteException e) { 993 } 994 } 995 996 @Override 997 public void sendOrderedBroadcast(Intent intent, 998 String receiverPermission, BroadcastReceiver resultReceiver, 999 Handler scheduler, int initialCode, String initialData, 1000 Bundle initialExtras) { 1001 IIntentReceiver rd = null; 1002 if (resultReceiver != null) { 1003 if (mPackageInfo != null) { 1004 if (scheduler == null) { 1005 scheduler = mMainThread.getHandler(); 1006 } 1007 rd = mPackageInfo.getReceiverDispatcher( 1008 resultReceiver, getOuterContext(), scheduler, 1009 mMainThread.getInstrumentation(), false); 1010 } else { 1011 if (scheduler == null) { 1012 scheduler = mMainThread.getHandler(); 1013 } 1014 rd = new LoadedApk.ReceiverDispatcher( 1015 resultReceiver, getOuterContext(), scheduler, null, false).getIIntentReceiver(); 1016 } 1017 } 1018 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 1019 try { 1020 intent.setAllowFds(false); 1021 ActivityManagerNative.getDefault().broadcastIntent( 1022 mMainThread.getApplicationThread(), intent, resolvedType, rd, 1023 initialCode, initialData, initialExtras, receiverPermission, 1024 true, false, Binder.getOrigCallingUser()); 1025 } catch (RemoteException e) { 1026 } 1027 } 1028 1029 @Override 1030 public void sendBroadcastToUser(Intent intent, int userHandle) { 1031 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 1032 try { 1033 intent.setAllowFds(false); 1034 ActivityManagerNative.getDefault().broadcastIntent(mMainThread.getApplicationThread(), 1035 intent, resolvedType, null, Activity.RESULT_OK, null, null, null, false, false, 1036 userHandle); 1037 } catch (RemoteException e) { 1038 } 1039 } 1040 1041 @Override 1042 public void sendOrderedBroadcastToUser(Intent intent, int userHandle, 1043 BroadcastReceiver resultReceiver, Handler scheduler, 1044 int initialCode, String initialData, Bundle initialExtras) { 1045 IIntentReceiver rd = null; 1046 if (resultReceiver != null) { 1047 if (mPackageInfo != null) { 1048 if (scheduler == null) { 1049 scheduler = mMainThread.getHandler(); 1050 } 1051 rd = mPackageInfo.getReceiverDispatcher( 1052 resultReceiver, getOuterContext(), scheduler, 1053 mMainThread.getInstrumentation(), false); 1054 } else { 1055 if (scheduler == null) { 1056 scheduler = mMainThread.getHandler(); 1057 } 1058 rd = new LoadedApk.ReceiverDispatcher( 1059 resultReceiver, getOuterContext(), scheduler, null, false).getIIntentReceiver(); 1060 } 1061 } 1062 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 1063 try { 1064 intent.setAllowFds(false); 1065 ActivityManagerNative.getDefault().broadcastIntent( 1066 mMainThread.getApplicationThread(), intent, resolvedType, rd, 1067 initialCode, initialData, initialExtras, null, 1068 true, false, userHandle); 1069 } catch (RemoteException e) { 1070 } 1071 } 1072 1073 @Override 1074 public void sendStickyBroadcast(Intent intent) { 1075 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 1076 try { 1077 intent.setAllowFds(false); 1078 ActivityManagerNative.getDefault().broadcastIntent( 1079 mMainThread.getApplicationThread(), intent, resolvedType, null, 1080 Activity.RESULT_OK, null, null, null, false, true, 1081 Binder.getOrigCallingUser()); 1082 } catch (RemoteException e) { 1083 } 1084 } 1085 1086 @Override 1087 public void sendStickyOrderedBroadcast(Intent intent, 1088 BroadcastReceiver resultReceiver, 1089 Handler scheduler, int initialCode, String initialData, 1090 Bundle initialExtras) { 1091 IIntentReceiver rd = null; 1092 if (resultReceiver != null) { 1093 if (mPackageInfo != null) { 1094 if (scheduler == null) { 1095 scheduler = mMainThread.getHandler(); 1096 } 1097 rd = mPackageInfo.getReceiverDispatcher( 1098 resultReceiver, getOuterContext(), scheduler, 1099 mMainThread.getInstrumentation(), false); 1100 } else { 1101 if (scheduler == null) { 1102 scheduler = mMainThread.getHandler(); 1103 } 1104 rd = new LoadedApk.ReceiverDispatcher( 1105 resultReceiver, getOuterContext(), scheduler, null, false).getIIntentReceiver(); 1106 } 1107 } 1108 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 1109 try { 1110 intent.setAllowFds(false); 1111 ActivityManagerNative.getDefault().broadcastIntent( 1112 mMainThread.getApplicationThread(), intent, resolvedType, rd, 1113 initialCode, initialData, initialExtras, null, 1114 true, true, Binder.getOrigCallingUser()); 1115 } catch (RemoteException e) { 1116 } 1117 } 1118 1119 @Override 1120 public void removeStickyBroadcast(Intent intent) { 1121 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 1122 if (resolvedType != null) { 1123 intent = new Intent(intent); 1124 intent.setDataAndType(intent.getData(), resolvedType); 1125 } 1126 try { 1127 intent.setAllowFds(false); 1128 ActivityManagerNative.getDefault().unbroadcastIntent( 1129 mMainThread.getApplicationThread(), intent, Binder.getOrigCallingUser()); 1130 } catch (RemoteException e) { 1131 } 1132 } 1133 1134 @Override 1135 public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter) { 1136 return registerReceiver(receiver, filter, null, null); 1137 } 1138 1139 @Override 1140 public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter, 1141 String broadcastPermission, Handler scheduler) { 1142 return registerReceiverInternal(receiver, filter, broadcastPermission, 1143 scheduler, getOuterContext()); 1144 } 1145 1146 private Intent registerReceiverInternal(BroadcastReceiver receiver, 1147 IntentFilter filter, String broadcastPermission, 1148 Handler scheduler, Context context) { 1149 IIntentReceiver rd = null; 1150 if (receiver != null) { 1151 if (mPackageInfo != null && context != null) { 1152 if (scheduler == null) { 1153 scheduler = mMainThread.getHandler(); 1154 } 1155 rd = mPackageInfo.getReceiverDispatcher( 1156 receiver, context, scheduler, 1157 mMainThread.getInstrumentation(), true); 1158 } else { 1159 if (scheduler == null) { 1160 scheduler = mMainThread.getHandler(); 1161 } 1162 rd = new LoadedApk.ReceiverDispatcher( 1163 receiver, context, scheduler, null, true).getIIntentReceiver(); 1164 } 1165 } 1166 try { 1167 return ActivityManagerNative.getDefault().registerReceiver( 1168 mMainThread.getApplicationThread(), mBasePackageName, 1169 rd, filter, broadcastPermission); 1170 } catch (RemoteException e) { 1171 return null; 1172 } 1173 } 1174 1175 @Override 1176 public void unregisterReceiver(BroadcastReceiver receiver) { 1177 if (mPackageInfo != null) { 1178 IIntentReceiver rd = mPackageInfo.forgetReceiverDispatcher( 1179 getOuterContext(), receiver); 1180 try { 1181 ActivityManagerNative.getDefault().unregisterReceiver(rd); 1182 } catch (RemoteException e) { 1183 } 1184 } else { 1185 throw new RuntimeException("Not supported in system context"); 1186 } 1187 } 1188 1189 @Override 1190 public ComponentName startService(Intent service) { 1191 try { 1192 service.setAllowFds(false); 1193 ComponentName cn = ActivityManagerNative.getDefault().startService( 1194 mMainThread.getApplicationThread(), service, 1195 service.resolveTypeIfNeeded(getContentResolver())); 1196 if (cn != null && cn.getPackageName().equals("!")) { 1197 throw new SecurityException( 1198 "Not allowed to start service " + service 1199 + " without permission " + cn.getClassName()); 1200 } 1201 return cn; 1202 } catch (RemoteException e) { 1203 return null; 1204 } 1205 } 1206 1207 @Override 1208 public boolean stopService(Intent service) { 1209 try { 1210 service.setAllowFds(false); 1211 int res = ActivityManagerNative.getDefault().stopService( 1212 mMainThread.getApplicationThread(), service, 1213 service.resolveTypeIfNeeded(getContentResolver())); 1214 if (res < 0) { 1215 throw new SecurityException( 1216 "Not allowed to stop service " + service); 1217 } 1218 return res != 0; 1219 } catch (RemoteException e) { 1220 return false; 1221 } 1222 } 1223 1224 @Override 1225 public boolean bindService(Intent service, ServiceConnection conn, 1226 int flags) { 1227 return bindService(service, conn, flags, UserId.getUserId(Process.myUid())); 1228 } 1229 1230 /** @hide */ 1231 @Override 1232 public boolean bindService(Intent service, ServiceConnection conn, int flags, int userHandle) { 1233 IServiceConnection sd; 1234 if (conn == null) { 1235 throw new IllegalArgumentException("connection is null"); 1236 } 1237 if (mPackageInfo != null) { 1238 sd = mPackageInfo.getServiceDispatcher(conn, getOuterContext(), 1239 mMainThread.getHandler(), flags); 1240 } else { 1241 throw new RuntimeException("Not supported in system context"); 1242 } 1243 try { 1244 IBinder token = getActivityToken(); 1245 if (token == null && (flags&BIND_AUTO_CREATE) == 0 && mPackageInfo != null 1246 && mPackageInfo.getApplicationInfo().targetSdkVersion 1247 < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 1248 flags |= BIND_WAIVE_PRIORITY; 1249 } 1250 service.setAllowFds(false); 1251 int res = ActivityManagerNative.getDefault().bindService( 1252 mMainThread.getApplicationThread(), getActivityToken(), 1253 service, service.resolveTypeIfNeeded(getContentResolver()), 1254 sd, flags, userHandle); 1255 if (res < 0) { 1256 throw new SecurityException( 1257 "Not allowed to bind to service " + service); 1258 } 1259 return res != 0; 1260 } catch (RemoteException e) { 1261 return false; 1262 } 1263 } 1264 1265 @Override 1266 public void unbindService(ServiceConnection conn) { 1267 if (conn == null) { 1268 throw new IllegalArgumentException("connection is null"); 1269 } 1270 if (mPackageInfo != null) { 1271 IServiceConnection sd = mPackageInfo.forgetServiceDispatcher( 1272 getOuterContext(), conn); 1273 try { 1274 ActivityManagerNative.getDefault().unbindService(sd); 1275 } catch (RemoteException e) { 1276 } 1277 } else { 1278 throw new RuntimeException("Not supported in system context"); 1279 } 1280 } 1281 1282 @Override 1283 public boolean startInstrumentation(ComponentName className, 1284 String profileFile, Bundle arguments) { 1285 try { 1286 if (arguments != null) { 1287 arguments.setAllowFds(false); 1288 } 1289 return ActivityManagerNative.getDefault().startInstrumentation( 1290 className, profileFile, 0, arguments, null); 1291 } catch (RemoteException e) { 1292 // System has crashed, nothing we can do. 1293 } 1294 return false; 1295 } 1296 1297 @Override 1298 public Object getSystemService(String name) { 1299 ServiceFetcher fetcher = SYSTEM_SERVICE_MAP.get(name); 1300 return fetcher == null ? null : fetcher.getService(this); 1301 } 1302 1303 private WallpaperManager getWallpaperManager() { 1304 return (WallpaperManager) WALLPAPER_FETCHER.getService(this); 1305 } 1306 1307 /* package */ static DropBoxManager createDropBoxManager() { 1308 IBinder b = ServiceManager.getService(DROPBOX_SERVICE); 1309 IDropBoxManagerService service = IDropBoxManagerService.Stub.asInterface(b); 1310 if (service == null) { 1311 // Don't return a DropBoxManager that will NPE upon use. 1312 // This also avoids caching a broken DropBoxManager in 1313 // getDropBoxManager during early boot, before the 1314 // DROPBOX_SERVICE is registered. 1315 return null; 1316 } 1317 return new DropBoxManager(service); 1318 } 1319 1320 @Override 1321 public int checkPermission(String permission, int pid, int uid) { 1322 if (permission == null) { 1323 throw new IllegalArgumentException("permission is null"); 1324 } 1325 1326 try { 1327 return ActivityManagerNative.getDefault().checkPermission( 1328 permission, pid, uid); 1329 } catch (RemoteException e) { 1330 return PackageManager.PERMISSION_DENIED; 1331 } 1332 } 1333 1334 @Override 1335 public int checkCallingPermission(String permission) { 1336 if (permission == null) { 1337 throw new IllegalArgumentException("permission is null"); 1338 } 1339 1340 int pid = Binder.getCallingPid(); 1341 if (pid != Process.myPid()) { 1342 return checkPermission(permission, pid, Binder.getCallingUid()); 1343 } 1344 return PackageManager.PERMISSION_DENIED; 1345 } 1346 1347 @Override 1348 public int checkCallingOrSelfPermission(String permission) { 1349 if (permission == null) { 1350 throw new IllegalArgumentException("permission is null"); 1351 } 1352 1353 return checkPermission(permission, Binder.getCallingPid(), 1354 Binder.getCallingUid()); 1355 } 1356 1357 private void enforce( 1358 String permission, int resultOfCheck, 1359 boolean selfToo, int uid, String message) { 1360 if (resultOfCheck != PackageManager.PERMISSION_GRANTED) { 1361 throw new SecurityException( 1362 (message != null ? (message + ": ") : "") + 1363 (selfToo 1364 ? "Neither user " + uid + " nor current process has " 1365 : "User " + uid + " does not have ") + 1366 permission + 1367 "."); 1368 } 1369 } 1370 1371 public void enforcePermission( 1372 String permission, int pid, int uid, String message) { 1373 enforce(permission, 1374 checkPermission(permission, pid, uid), 1375 false, 1376 uid, 1377 message); 1378 } 1379 1380 public void enforceCallingPermission(String permission, String message) { 1381 enforce(permission, 1382 checkCallingPermission(permission), 1383 false, 1384 Binder.getCallingUid(), 1385 message); 1386 } 1387 1388 public void enforceCallingOrSelfPermission( 1389 String permission, String message) { 1390 enforce(permission, 1391 checkCallingOrSelfPermission(permission), 1392 true, 1393 Binder.getCallingUid(), 1394 message); 1395 } 1396 1397 @Override 1398 public void grantUriPermission(String toPackage, Uri uri, int modeFlags) { 1399 try { 1400 ActivityManagerNative.getDefault().grantUriPermission( 1401 mMainThread.getApplicationThread(), toPackage, uri, 1402 modeFlags); 1403 } catch (RemoteException e) { 1404 } 1405 } 1406 1407 @Override 1408 public void revokeUriPermission(Uri uri, int modeFlags) { 1409 try { 1410 ActivityManagerNative.getDefault().revokeUriPermission( 1411 mMainThread.getApplicationThread(), uri, 1412 modeFlags); 1413 } catch (RemoteException e) { 1414 } 1415 } 1416 1417 @Override 1418 public int checkUriPermission(Uri uri, int pid, int uid, int modeFlags) { 1419 try { 1420 return ActivityManagerNative.getDefault().checkUriPermission( 1421 uri, pid, uid, modeFlags); 1422 } catch (RemoteException e) { 1423 return PackageManager.PERMISSION_DENIED; 1424 } 1425 } 1426 1427 @Override 1428 public int checkCallingUriPermission(Uri uri, int modeFlags) { 1429 int pid = Binder.getCallingPid(); 1430 if (pid != Process.myPid()) { 1431 return checkUriPermission(uri, pid, 1432 Binder.getCallingUid(), modeFlags); 1433 } 1434 return PackageManager.PERMISSION_DENIED; 1435 } 1436 1437 @Override 1438 public int checkCallingOrSelfUriPermission(Uri uri, int modeFlags) { 1439 return checkUriPermission(uri, Binder.getCallingPid(), 1440 Binder.getCallingUid(), modeFlags); 1441 } 1442 1443 @Override 1444 public int checkUriPermission(Uri uri, String readPermission, 1445 String writePermission, int pid, int uid, int modeFlags) { 1446 if (DEBUG) { 1447 Log.i("foo", "checkUriPermission: uri=" + uri + "readPermission=" 1448 + readPermission + " writePermission=" + writePermission 1449 + " pid=" + pid + " uid=" + uid + " mode" + modeFlags); 1450 } 1451 if ((modeFlags&Intent.FLAG_GRANT_READ_URI_PERMISSION) != 0) { 1452 if (readPermission == null 1453 || checkPermission(readPermission, pid, uid) 1454 == PackageManager.PERMISSION_GRANTED) { 1455 return PackageManager.PERMISSION_GRANTED; 1456 } 1457 } 1458 if ((modeFlags&Intent.FLAG_GRANT_WRITE_URI_PERMISSION) != 0) { 1459 if (writePermission == null 1460 || checkPermission(writePermission, pid, uid) 1461 == PackageManager.PERMISSION_GRANTED) { 1462 return PackageManager.PERMISSION_GRANTED; 1463 } 1464 } 1465 return uri != null ? checkUriPermission(uri, pid, uid, modeFlags) 1466 : PackageManager.PERMISSION_DENIED; 1467 } 1468 1469 private String uriModeFlagToString(int uriModeFlags) { 1470 switch (uriModeFlags) { 1471 case Intent.FLAG_GRANT_READ_URI_PERMISSION | 1472 Intent.FLAG_GRANT_WRITE_URI_PERMISSION: 1473 return "read and write"; 1474 case Intent.FLAG_GRANT_READ_URI_PERMISSION: 1475 return "read"; 1476 case Intent.FLAG_GRANT_WRITE_URI_PERMISSION: 1477 return "write"; 1478 } 1479 throw new IllegalArgumentException( 1480 "Unknown permission mode flags: " + uriModeFlags); 1481 } 1482 1483 private void enforceForUri( 1484 int modeFlags, int resultOfCheck, boolean selfToo, 1485 int uid, Uri uri, String message) { 1486 if (resultOfCheck != PackageManager.PERMISSION_GRANTED) { 1487 throw new SecurityException( 1488 (message != null ? (message + ": ") : "") + 1489 (selfToo 1490 ? "Neither user " + uid + " nor current process has " 1491 : "User " + uid + " does not have ") + 1492 uriModeFlagToString(modeFlags) + 1493 " permission on " + 1494 uri + 1495 "."); 1496 } 1497 } 1498 1499 public void enforceUriPermission( 1500 Uri uri, int pid, int uid, int modeFlags, String message) { 1501 enforceForUri( 1502 modeFlags, checkUriPermission(uri, pid, uid, modeFlags), 1503 false, uid, uri, message); 1504 } 1505 1506 public void enforceCallingUriPermission( 1507 Uri uri, int modeFlags, String message) { 1508 enforceForUri( 1509 modeFlags, checkCallingUriPermission(uri, modeFlags), 1510 false, 1511 Binder.getCallingUid(), uri, message); 1512 } 1513 1514 public void enforceCallingOrSelfUriPermission( 1515 Uri uri, int modeFlags, String message) { 1516 enforceForUri( 1517 modeFlags, 1518 checkCallingOrSelfUriPermission(uri, modeFlags), true, 1519 Binder.getCallingUid(), uri, message); 1520 } 1521 1522 public void enforceUriPermission( 1523 Uri uri, String readPermission, String writePermission, 1524 int pid, int uid, int modeFlags, String message) { 1525 enforceForUri(modeFlags, 1526 checkUriPermission( 1527 uri, readPermission, writePermission, pid, uid, 1528 modeFlags), 1529 false, 1530 uid, 1531 uri, 1532 message); 1533 } 1534 1535 @Override 1536 public Context createPackageContext(String packageName, int flags) 1537 throws PackageManager.NameNotFoundException { 1538 if (packageName.equals("system") || packageName.equals("android")) { 1539 final ContextImpl context = new ContextImpl(mMainThread.getSystemContext()); 1540 context.mBasePackageName = mBasePackageName; 1541 return context; 1542 } 1543 1544 LoadedApk pi = 1545 mMainThread.getPackageInfo(packageName, mResources.getCompatibilityInfo(), flags); 1546 if (pi != null) { 1547 ContextImpl c = new ContextImpl(); 1548 c.mRestricted = (flags & CONTEXT_RESTRICTED) == CONTEXT_RESTRICTED; 1549 c.init(pi, null, mMainThread, mResources, mBasePackageName); 1550 if (c.mResources != null) { 1551 return c; 1552 } 1553 } 1554 1555 // Should be a better exception. 1556 throw new PackageManager.NameNotFoundException( 1557 "Application package " + packageName + " not found"); 1558 } 1559 1560 @Override 1561 public boolean isRestricted() { 1562 return mRestricted; 1563 } 1564 1565 private File getDataDirFile() { 1566 if (mPackageInfo != null) { 1567 return mPackageInfo.getDataDirFile(); 1568 } 1569 throw new RuntimeException("Not supported in system context"); 1570 } 1571 1572 @Override 1573 public File getDir(String name, int mode) { 1574 name = "app_" + name; 1575 File file = makeFilename(getDataDirFile(), name); 1576 if (!file.exists()) { 1577 file.mkdir(); 1578 setFilePermissionsFromMode(file.getPath(), mode, 1579 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH); 1580 } 1581 return file; 1582 } 1583 1584 static ContextImpl createSystemContext(ActivityThread mainThread) { 1585 ContextImpl context = new ContextImpl(); 1586 context.init(Resources.getSystem(), mainThread); 1587 return context; 1588 } 1589 1590 ContextImpl() { 1591 mOuterContext = this; 1592 } 1593 1594 /** 1595 * Create a new ApplicationContext from an existing one. The new one 1596 * works and operates the same as the one it is copying. 1597 * 1598 * @param context Existing application context. 1599 */ 1600 public ContextImpl(ContextImpl context) { 1601 mPackageInfo = context.mPackageInfo; 1602 mBasePackageName = context.mBasePackageName; 1603 mResources = context.mResources; 1604 mMainThread = context.mMainThread; 1605 mContentResolver = context.mContentResolver; 1606 mOuterContext = this; 1607 } 1608 1609 final void init(LoadedApk packageInfo, 1610 IBinder activityToken, ActivityThread mainThread) { 1611 init(packageInfo, activityToken, mainThread, null, null); 1612 } 1613 1614 final void init(LoadedApk packageInfo, 1615 IBinder activityToken, ActivityThread mainThread, 1616 Resources container, String basePackageName) { 1617 mPackageInfo = packageInfo; 1618 mBasePackageName = basePackageName != null ? basePackageName : packageInfo.mPackageName; 1619 mResources = mPackageInfo.getResources(mainThread); 1620 1621 if (mResources != null && container != null 1622 && container.getCompatibilityInfo().applicationScale != 1623 mResources.getCompatibilityInfo().applicationScale) { 1624 if (DEBUG) { 1625 Log.d(TAG, "loaded context has different scaling. Using container's" + 1626 " compatiblity info:" + container.getDisplayMetrics()); 1627 } 1628 mResources = mainThread.getTopLevelResources( 1629 mPackageInfo.getResDir(), container.getCompatibilityInfo()); 1630 } 1631 mMainThread = mainThread; 1632 mContentResolver = new ApplicationContentResolver(this, mainThread); 1633 1634 setActivityToken(activityToken); 1635 } 1636 1637 final void init(Resources resources, ActivityThread mainThread) { 1638 mPackageInfo = null; 1639 mBasePackageName = null; 1640 mResources = resources; 1641 mMainThread = mainThread; 1642 mContentResolver = new ApplicationContentResolver(this, mainThread); 1643 } 1644 1645 final void scheduleFinalCleanup(String who, String what) { 1646 mMainThread.scheduleContextCleanup(this, who, what); 1647 } 1648 1649 final void performFinalCleanup(String who, String what) { 1650 //Log.i(TAG, "Cleanup up context: " + this); 1651 mPackageInfo.removeContextRegistrations(getOuterContext(), who, what); 1652 } 1653 1654 final Context getReceiverRestrictedContext() { 1655 if (mReceiverRestrictedContext != null) { 1656 return mReceiverRestrictedContext; 1657 } 1658 return mReceiverRestrictedContext = new ReceiverRestrictedContext(getOuterContext()); 1659 } 1660 1661 final void setActivityToken(IBinder token) { 1662 mActivityToken = token; 1663 } 1664 1665 final void setOuterContext(Context context) { 1666 mOuterContext = context; 1667 } 1668 1669 final Context getOuterContext() { 1670 return mOuterContext; 1671 } 1672 1673 final IBinder getActivityToken() { 1674 return mActivityToken; 1675 } 1676 1677 static void setFilePermissionsFromMode(String name, int mode, 1678 int extraPermissions) { 1679 int perms = FileUtils.S_IRUSR|FileUtils.S_IWUSR 1680 |FileUtils.S_IRGRP|FileUtils.S_IWGRP 1681 |extraPermissions; 1682 if ((mode&MODE_WORLD_READABLE) != 0) { 1683 perms |= FileUtils.S_IROTH; 1684 } 1685 if ((mode&MODE_WORLD_WRITEABLE) != 0) { 1686 perms |= FileUtils.S_IWOTH; 1687 } 1688 if (DEBUG) { 1689 Log.i(TAG, "File " + name + ": mode=0x" + Integer.toHexString(mode) 1690 + ", perms=0x" + Integer.toHexString(perms)); 1691 } 1692 FileUtils.setPermissions(name, perms, -1, -1); 1693 } 1694 1695 private File validateFilePath(String name, boolean createDirectory) { 1696 File dir; 1697 File f; 1698 1699 if (name.charAt(0) == File.separatorChar) { 1700 String dirPath = name.substring(0, name.lastIndexOf(File.separatorChar)); 1701 dir = new File(dirPath); 1702 name = name.substring(name.lastIndexOf(File.separatorChar)); 1703 f = new File(dir, name); 1704 } else { 1705 dir = getDatabasesDir(); 1706 f = makeFilename(dir, name); 1707 } 1708 1709 if (createDirectory && !dir.isDirectory() && dir.mkdir()) { 1710 FileUtils.setPermissions(dir.getPath(), 1711 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1712 -1, -1); 1713 } 1714 1715 return f; 1716 } 1717 1718 private File makeFilename(File base, String name) { 1719 if (name.indexOf(File.separatorChar) < 0) { 1720 return new File(base, name); 1721 } 1722 throw new IllegalArgumentException( 1723 "File " + name + " contains a path separator"); 1724 } 1725 1726 // ---------------------------------------------------------------------- 1727 // ---------------------------------------------------------------------- 1728 // ---------------------------------------------------------------------- 1729 1730 private static final class ApplicationContentResolver extends ContentResolver { 1731 public ApplicationContentResolver(Context context, ActivityThread mainThread) { 1732 super(context); 1733 mMainThread = mainThread; 1734 } 1735 1736 @Override 1737 protected IContentProvider acquireProvider(Context context, String name) { 1738 return mMainThread.acquireProvider(context, name, true); 1739 } 1740 1741 @Override 1742 protected IContentProvider acquireExistingProvider(Context context, String name) { 1743 return mMainThread.acquireExistingProvider(context, name, true); 1744 } 1745 1746 @Override 1747 public boolean releaseProvider(IContentProvider provider) { 1748 return mMainThread.releaseProvider(provider, true); 1749 } 1750 1751 @Override 1752 protected IContentProvider acquireUnstableProvider(Context c, String name) { 1753 return mMainThread.acquireProvider(c, name, false); 1754 } 1755 1756 @Override 1757 public boolean releaseUnstableProvider(IContentProvider icp) { 1758 return mMainThread.releaseProvider(icp, false); 1759 } 1760 1761 @Override 1762 public void unstableProviderDied(IContentProvider icp) { 1763 mMainThread.handleUnstableProviderDied(icp.asBinder(), true); 1764 } 1765 1766 private final ActivityThread mMainThread; 1767 } 1768} 1769