ContextImpl.java revision b4163a6e12ee7100c758c6d3d062ade1f2843fce
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 sendBroadcastToUser(Intent intent, int userId) { 971 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 972 try { 973 intent.setAllowFds(false); 974 ActivityManagerNative.getDefault().broadcastIntent(mMainThread.getApplicationThread(), 975 intent, resolvedType, null, Activity.RESULT_OK, null, null, null, false, false, 976 userId); 977 } catch (RemoteException e) { 978 } 979 } 980 981 @Override 982 public void sendBroadcast(Intent intent, String receiverPermission) { 983 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 984 try { 985 intent.setAllowFds(false); 986 ActivityManagerNative.getDefault().broadcastIntent( 987 mMainThread.getApplicationThread(), intent, resolvedType, null, 988 Activity.RESULT_OK, null, null, receiverPermission, false, false, 989 Binder.getOrigCallingUser()); 990 } catch (RemoteException e) { 991 } 992 } 993 994 @Override 995 public void sendOrderedBroadcast(Intent intent, 996 String receiverPermission) { 997 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 998 try { 999 intent.setAllowFds(false); 1000 ActivityManagerNative.getDefault().broadcastIntent( 1001 mMainThread.getApplicationThread(), intent, resolvedType, null, 1002 Activity.RESULT_OK, null, null, receiverPermission, true, false, 1003 Binder.getOrigCallingUser()); 1004 } catch (RemoteException e) { 1005 } 1006 } 1007 1008 @Override 1009 public void sendOrderedBroadcast(Intent intent, 1010 String receiverPermission, BroadcastReceiver resultReceiver, 1011 Handler scheduler, int initialCode, String initialData, 1012 Bundle initialExtras) { 1013 IIntentReceiver rd = null; 1014 if (resultReceiver != null) { 1015 if (mPackageInfo != null) { 1016 if (scheduler == null) { 1017 scheduler = mMainThread.getHandler(); 1018 } 1019 rd = mPackageInfo.getReceiverDispatcher( 1020 resultReceiver, getOuterContext(), scheduler, 1021 mMainThread.getInstrumentation(), false); 1022 } else { 1023 if (scheduler == null) { 1024 scheduler = mMainThread.getHandler(); 1025 } 1026 rd = new LoadedApk.ReceiverDispatcher( 1027 resultReceiver, getOuterContext(), scheduler, null, false).getIIntentReceiver(); 1028 } 1029 } 1030 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 1031 try { 1032 intent.setAllowFds(false); 1033 ActivityManagerNative.getDefault().broadcastIntent( 1034 mMainThread.getApplicationThread(), intent, resolvedType, rd, 1035 initialCode, initialData, initialExtras, receiverPermission, 1036 true, false, Binder.getOrigCallingUser()); 1037 } catch (RemoteException e) { 1038 } 1039 } 1040 1041 @Override 1042 public void sendStickyBroadcast(Intent intent) { 1043 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 1044 try { 1045 intent.setAllowFds(false); 1046 ActivityManagerNative.getDefault().broadcastIntent( 1047 mMainThread.getApplicationThread(), intent, resolvedType, null, 1048 Activity.RESULT_OK, null, null, null, false, true, 1049 Binder.getOrigCallingUser()); 1050 } catch (RemoteException e) { 1051 } 1052 } 1053 1054 @Override 1055 public void sendStickyOrderedBroadcast(Intent intent, 1056 BroadcastReceiver resultReceiver, 1057 Handler scheduler, int initialCode, String initialData, 1058 Bundle initialExtras) { 1059 IIntentReceiver rd = null; 1060 if (resultReceiver != null) { 1061 if (mPackageInfo != null) { 1062 if (scheduler == null) { 1063 scheduler = mMainThread.getHandler(); 1064 } 1065 rd = mPackageInfo.getReceiverDispatcher( 1066 resultReceiver, getOuterContext(), scheduler, 1067 mMainThread.getInstrumentation(), false); 1068 } else { 1069 if (scheduler == null) { 1070 scheduler = mMainThread.getHandler(); 1071 } 1072 rd = new LoadedApk.ReceiverDispatcher( 1073 resultReceiver, getOuterContext(), scheduler, null, false).getIIntentReceiver(); 1074 } 1075 } 1076 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 1077 try { 1078 intent.setAllowFds(false); 1079 ActivityManagerNative.getDefault().broadcastIntent( 1080 mMainThread.getApplicationThread(), intent, resolvedType, rd, 1081 initialCode, initialData, initialExtras, null, 1082 true, true, Binder.getOrigCallingUser()); 1083 } catch (RemoteException e) { 1084 } 1085 } 1086 1087 @Override 1088 public void removeStickyBroadcast(Intent intent) { 1089 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 1090 if (resolvedType != null) { 1091 intent = new Intent(intent); 1092 intent.setDataAndType(intent.getData(), resolvedType); 1093 } 1094 try { 1095 intent.setAllowFds(false); 1096 ActivityManagerNative.getDefault().unbroadcastIntent( 1097 mMainThread.getApplicationThread(), intent, Binder.getOrigCallingUser()); 1098 } catch (RemoteException e) { 1099 } 1100 } 1101 1102 @Override 1103 public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter) { 1104 return registerReceiver(receiver, filter, null, null); 1105 } 1106 1107 @Override 1108 public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter, 1109 String broadcastPermission, Handler scheduler) { 1110 return registerReceiverInternal(receiver, filter, broadcastPermission, 1111 scheduler, getOuterContext()); 1112 } 1113 1114 private Intent registerReceiverInternal(BroadcastReceiver receiver, 1115 IntentFilter filter, String broadcastPermission, 1116 Handler scheduler, Context context) { 1117 IIntentReceiver rd = null; 1118 if (receiver != null) { 1119 if (mPackageInfo != null && context != null) { 1120 if (scheduler == null) { 1121 scheduler = mMainThread.getHandler(); 1122 } 1123 rd = mPackageInfo.getReceiverDispatcher( 1124 receiver, context, scheduler, 1125 mMainThread.getInstrumentation(), true); 1126 } else { 1127 if (scheduler == null) { 1128 scheduler = mMainThread.getHandler(); 1129 } 1130 rd = new LoadedApk.ReceiverDispatcher( 1131 receiver, context, scheduler, null, true).getIIntentReceiver(); 1132 } 1133 } 1134 try { 1135 return ActivityManagerNative.getDefault().registerReceiver( 1136 mMainThread.getApplicationThread(), mBasePackageName, 1137 rd, filter, broadcastPermission); 1138 } catch (RemoteException e) { 1139 return null; 1140 } 1141 } 1142 1143 @Override 1144 public void unregisterReceiver(BroadcastReceiver receiver) { 1145 if (mPackageInfo != null) { 1146 IIntentReceiver rd = mPackageInfo.forgetReceiverDispatcher( 1147 getOuterContext(), receiver); 1148 try { 1149 ActivityManagerNative.getDefault().unregisterReceiver(rd); 1150 } catch (RemoteException e) { 1151 } 1152 } else { 1153 throw new RuntimeException("Not supported in system context"); 1154 } 1155 } 1156 1157 @Override 1158 public ComponentName startService(Intent service) { 1159 try { 1160 service.setAllowFds(false); 1161 ComponentName cn = ActivityManagerNative.getDefault().startService( 1162 mMainThread.getApplicationThread(), service, 1163 service.resolveTypeIfNeeded(getContentResolver())); 1164 if (cn != null && cn.getPackageName().equals("!")) { 1165 throw new SecurityException( 1166 "Not allowed to start service " + service 1167 + " without permission " + cn.getClassName()); 1168 } 1169 return cn; 1170 } catch (RemoteException e) { 1171 return null; 1172 } 1173 } 1174 1175 @Override 1176 public boolean stopService(Intent service) { 1177 try { 1178 service.setAllowFds(false); 1179 int res = ActivityManagerNative.getDefault().stopService( 1180 mMainThread.getApplicationThread(), service, 1181 service.resolveTypeIfNeeded(getContentResolver())); 1182 if (res < 0) { 1183 throw new SecurityException( 1184 "Not allowed to stop service " + service); 1185 } 1186 return res != 0; 1187 } catch (RemoteException e) { 1188 return false; 1189 } 1190 } 1191 1192 @Override 1193 public boolean bindService(Intent service, ServiceConnection conn, 1194 int flags) { 1195 return bindService(service, conn, flags, UserId.getUserId(Process.myUid())); 1196 } 1197 1198 /** @hide */ 1199 @Override 1200 public boolean bindService(Intent service, ServiceConnection conn, int flags, int userId) { 1201 IServiceConnection sd; 1202 if (conn == null) { 1203 throw new IllegalArgumentException("connection is null"); 1204 } 1205 if (mPackageInfo != null) { 1206 sd = mPackageInfo.getServiceDispatcher(conn, getOuterContext(), 1207 mMainThread.getHandler(), flags); 1208 } else { 1209 throw new RuntimeException("Not supported in system context"); 1210 } 1211 try { 1212 IBinder token = getActivityToken(); 1213 if (token == null && (flags&BIND_AUTO_CREATE) == 0 && mPackageInfo != null 1214 && mPackageInfo.getApplicationInfo().targetSdkVersion 1215 < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 1216 flags |= BIND_WAIVE_PRIORITY; 1217 } 1218 service.setAllowFds(false); 1219 int res = ActivityManagerNative.getDefault().bindService( 1220 mMainThread.getApplicationThread(), getActivityToken(), 1221 service, service.resolveTypeIfNeeded(getContentResolver()), 1222 sd, flags, userId); 1223 if (res < 0) { 1224 throw new SecurityException( 1225 "Not allowed to bind to service " + service); 1226 } 1227 return res != 0; 1228 } catch (RemoteException e) { 1229 return false; 1230 } 1231 } 1232 1233 @Override 1234 public void unbindService(ServiceConnection conn) { 1235 if (conn == null) { 1236 throw new IllegalArgumentException("connection is null"); 1237 } 1238 if (mPackageInfo != null) { 1239 IServiceConnection sd = mPackageInfo.forgetServiceDispatcher( 1240 getOuterContext(), conn); 1241 try { 1242 ActivityManagerNative.getDefault().unbindService(sd); 1243 } catch (RemoteException e) { 1244 } 1245 } else { 1246 throw new RuntimeException("Not supported in system context"); 1247 } 1248 } 1249 1250 @Override 1251 public boolean startInstrumentation(ComponentName className, 1252 String profileFile, Bundle arguments) { 1253 try { 1254 if (arguments != null) { 1255 arguments.setAllowFds(false); 1256 } 1257 return ActivityManagerNative.getDefault().startInstrumentation( 1258 className, profileFile, 0, arguments, null); 1259 } catch (RemoteException e) { 1260 // System has crashed, nothing we can do. 1261 } 1262 return false; 1263 } 1264 1265 @Override 1266 public Object getSystemService(String name) { 1267 ServiceFetcher fetcher = SYSTEM_SERVICE_MAP.get(name); 1268 return fetcher == null ? null : fetcher.getService(this); 1269 } 1270 1271 private WallpaperManager getWallpaperManager() { 1272 return (WallpaperManager) WALLPAPER_FETCHER.getService(this); 1273 } 1274 1275 /* package */ static DropBoxManager createDropBoxManager() { 1276 IBinder b = ServiceManager.getService(DROPBOX_SERVICE); 1277 IDropBoxManagerService service = IDropBoxManagerService.Stub.asInterface(b); 1278 if (service == null) { 1279 // Don't return a DropBoxManager that will NPE upon use. 1280 // This also avoids caching a broken DropBoxManager in 1281 // getDropBoxManager during early boot, before the 1282 // DROPBOX_SERVICE is registered. 1283 return null; 1284 } 1285 return new DropBoxManager(service); 1286 } 1287 1288 @Override 1289 public int checkPermission(String permission, int pid, int uid) { 1290 if (permission == null) { 1291 throw new IllegalArgumentException("permission is null"); 1292 } 1293 1294 try { 1295 return ActivityManagerNative.getDefault().checkPermission( 1296 permission, pid, uid); 1297 } catch (RemoteException e) { 1298 return PackageManager.PERMISSION_DENIED; 1299 } 1300 } 1301 1302 @Override 1303 public int checkCallingPermission(String permission) { 1304 if (permission == null) { 1305 throw new IllegalArgumentException("permission is null"); 1306 } 1307 1308 int pid = Binder.getCallingPid(); 1309 if (pid != Process.myPid()) { 1310 return checkPermission(permission, pid, Binder.getCallingUid()); 1311 } 1312 return PackageManager.PERMISSION_DENIED; 1313 } 1314 1315 @Override 1316 public int checkCallingOrSelfPermission(String permission) { 1317 if (permission == null) { 1318 throw new IllegalArgumentException("permission is null"); 1319 } 1320 1321 return checkPermission(permission, Binder.getCallingPid(), 1322 Binder.getCallingUid()); 1323 } 1324 1325 private void enforce( 1326 String permission, int resultOfCheck, 1327 boolean selfToo, int uid, String message) { 1328 if (resultOfCheck != PackageManager.PERMISSION_GRANTED) { 1329 throw new SecurityException( 1330 (message != null ? (message + ": ") : "") + 1331 (selfToo 1332 ? "Neither user " + uid + " nor current process has " 1333 : "User " + uid + " does not have ") + 1334 permission + 1335 "."); 1336 } 1337 } 1338 1339 public void enforcePermission( 1340 String permission, int pid, int uid, String message) { 1341 enforce(permission, 1342 checkPermission(permission, pid, uid), 1343 false, 1344 uid, 1345 message); 1346 } 1347 1348 public void enforceCallingPermission(String permission, String message) { 1349 enforce(permission, 1350 checkCallingPermission(permission), 1351 false, 1352 Binder.getCallingUid(), 1353 message); 1354 } 1355 1356 public void enforceCallingOrSelfPermission( 1357 String permission, String message) { 1358 enforce(permission, 1359 checkCallingOrSelfPermission(permission), 1360 true, 1361 Binder.getCallingUid(), 1362 message); 1363 } 1364 1365 @Override 1366 public void grantUriPermission(String toPackage, Uri uri, int modeFlags) { 1367 try { 1368 ActivityManagerNative.getDefault().grantUriPermission( 1369 mMainThread.getApplicationThread(), toPackage, uri, 1370 modeFlags); 1371 } catch (RemoteException e) { 1372 } 1373 } 1374 1375 @Override 1376 public void revokeUriPermission(Uri uri, int modeFlags) { 1377 try { 1378 ActivityManagerNative.getDefault().revokeUriPermission( 1379 mMainThread.getApplicationThread(), uri, 1380 modeFlags); 1381 } catch (RemoteException e) { 1382 } 1383 } 1384 1385 @Override 1386 public int checkUriPermission(Uri uri, int pid, int uid, int modeFlags) { 1387 try { 1388 return ActivityManagerNative.getDefault().checkUriPermission( 1389 uri, pid, uid, modeFlags); 1390 } catch (RemoteException e) { 1391 return PackageManager.PERMISSION_DENIED; 1392 } 1393 } 1394 1395 @Override 1396 public int checkCallingUriPermission(Uri uri, int modeFlags) { 1397 int pid = Binder.getCallingPid(); 1398 if (pid != Process.myPid()) { 1399 return checkUriPermission(uri, pid, 1400 Binder.getCallingUid(), modeFlags); 1401 } 1402 return PackageManager.PERMISSION_DENIED; 1403 } 1404 1405 @Override 1406 public int checkCallingOrSelfUriPermission(Uri uri, int modeFlags) { 1407 return checkUriPermission(uri, Binder.getCallingPid(), 1408 Binder.getCallingUid(), modeFlags); 1409 } 1410 1411 @Override 1412 public int checkUriPermission(Uri uri, String readPermission, 1413 String writePermission, int pid, int uid, int modeFlags) { 1414 if (DEBUG) { 1415 Log.i("foo", "checkUriPermission: uri=" + uri + "readPermission=" 1416 + readPermission + " writePermission=" + writePermission 1417 + " pid=" + pid + " uid=" + uid + " mode" + modeFlags); 1418 } 1419 if ((modeFlags&Intent.FLAG_GRANT_READ_URI_PERMISSION) != 0) { 1420 if (readPermission == null 1421 || checkPermission(readPermission, pid, uid) 1422 == PackageManager.PERMISSION_GRANTED) { 1423 return PackageManager.PERMISSION_GRANTED; 1424 } 1425 } 1426 if ((modeFlags&Intent.FLAG_GRANT_WRITE_URI_PERMISSION) != 0) { 1427 if (writePermission == null 1428 || checkPermission(writePermission, pid, uid) 1429 == PackageManager.PERMISSION_GRANTED) { 1430 return PackageManager.PERMISSION_GRANTED; 1431 } 1432 } 1433 return uri != null ? checkUriPermission(uri, pid, uid, modeFlags) 1434 : PackageManager.PERMISSION_DENIED; 1435 } 1436 1437 private String uriModeFlagToString(int uriModeFlags) { 1438 switch (uriModeFlags) { 1439 case Intent.FLAG_GRANT_READ_URI_PERMISSION | 1440 Intent.FLAG_GRANT_WRITE_URI_PERMISSION: 1441 return "read and write"; 1442 case Intent.FLAG_GRANT_READ_URI_PERMISSION: 1443 return "read"; 1444 case Intent.FLAG_GRANT_WRITE_URI_PERMISSION: 1445 return "write"; 1446 } 1447 throw new IllegalArgumentException( 1448 "Unknown permission mode flags: " + uriModeFlags); 1449 } 1450 1451 private void enforceForUri( 1452 int modeFlags, int resultOfCheck, boolean selfToo, 1453 int uid, Uri uri, String message) { 1454 if (resultOfCheck != PackageManager.PERMISSION_GRANTED) { 1455 throw new SecurityException( 1456 (message != null ? (message + ": ") : "") + 1457 (selfToo 1458 ? "Neither user " + uid + " nor current process has " 1459 : "User " + uid + " does not have ") + 1460 uriModeFlagToString(modeFlags) + 1461 " permission on " + 1462 uri + 1463 "."); 1464 } 1465 } 1466 1467 public void enforceUriPermission( 1468 Uri uri, int pid, int uid, int modeFlags, String message) { 1469 enforceForUri( 1470 modeFlags, checkUriPermission(uri, pid, uid, modeFlags), 1471 false, uid, uri, message); 1472 } 1473 1474 public void enforceCallingUriPermission( 1475 Uri uri, int modeFlags, String message) { 1476 enforceForUri( 1477 modeFlags, checkCallingUriPermission(uri, modeFlags), 1478 false, 1479 Binder.getCallingUid(), uri, message); 1480 } 1481 1482 public void enforceCallingOrSelfUriPermission( 1483 Uri uri, int modeFlags, String message) { 1484 enforceForUri( 1485 modeFlags, 1486 checkCallingOrSelfUriPermission(uri, modeFlags), true, 1487 Binder.getCallingUid(), uri, message); 1488 } 1489 1490 public void enforceUriPermission( 1491 Uri uri, String readPermission, String writePermission, 1492 int pid, int uid, int modeFlags, String message) { 1493 enforceForUri(modeFlags, 1494 checkUriPermission( 1495 uri, readPermission, writePermission, pid, uid, 1496 modeFlags), 1497 false, 1498 uid, 1499 uri, 1500 message); 1501 } 1502 1503 @Override 1504 public Context createPackageContext(String packageName, int flags) 1505 throws PackageManager.NameNotFoundException { 1506 if (packageName.equals("system") || packageName.equals("android")) { 1507 final ContextImpl context = new ContextImpl(mMainThread.getSystemContext()); 1508 context.mBasePackageName = mBasePackageName; 1509 return context; 1510 } 1511 1512 LoadedApk pi = 1513 mMainThread.getPackageInfo(packageName, mResources.getCompatibilityInfo(), flags); 1514 if (pi != null) { 1515 ContextImpl c = new ContextImpl(); 1516 c.mRestricted = (flags & CONTEXT_RESTRICTED) == CONTEXT_RESTRICTED; 1517 c.init(pi, null, mMainThread, mResources, mBasePackageName); 1518 if (c.mResources != null) { 1519 return c; 1520 } 1521 } 1522 1523 // Should be a better exception. 1524 throw new PackageManager.NameNotFoundException( 1525 "Application package " + packageName + " not found"); 1526 } 1527 1528 @Override 1529 public boolean isRestricted() { 1530 return mRestricted; 1531 } 1532 1533 private File getDataDirFile() { 1534 if (mPackageInfo != null) { 1535 return mPackageInfo.getDataDirFile(); 1536 } 1537 throw new RuntimeException("Not supported in system context"); 1538 } 1539 1540 @Override 1541 public File getDir(String name, int mode) { 1542 name = "app_" + name; 1543 File file = makeFilename(getDataDirFile(), name); 1544 if (!file.exists()) { 1545 file.mkdir(); 1546 setFilePermissionsFromMode(file.getPath(), mode, 1547 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH); 1548 } 1549 return file; 1550 } 1551 1552 static ContextImpl createSystemContext(ActivityThread mainThread) { 1553 ContextImpl context = new ContextImpl(); 1554 context.init(Resources.getSystem(), mainThread); 1555 return context; 1556 } 1557 1558 ContextImpl() { 1559 mOuterContext = this; 1560 } 1561 1562 /** 1563 * Create a new ApplicationContext from an existing one. The new one 1564 * works and operates the same as the one it is copying. 1565 * 1566 * @param context Existing application context. 1567 */ 1568 public ContextImpl(ContextImpl context) { 1569 mPackageInfo = context.mPackageInfo; 1570 mBasePackageName = context.mBasePackageName; 1571 mResources = context.mResources; 1572 mMainThread = context.mMainThread; 1573 mContentResolver = context.mContentResolver; 1574 mOuterContext = this; 1575 } 1576 1577 final void init(LoadedApk packageInfo, 1578 IBinder activityToken, ActivityThread mainThread) { 1579 init(packageInfo, activityToken, mainThread, null, null); 1580 } 1581 1582 final void init(LoadedApk packageInfo, 1583 IBinder activityToken, ActivityThread mainThread, 1584 Resources container, String basePackageName) { 1585 mPackageInfo = packageInfo; 1586 mBasePackageName = basePackageName != null ? basePackageName : packageInfo.mPackageName; 1587 mResources = mPackageInfo.getResources(mainThread); 1588 1589 if (mResources != null && container != null 1590 && container.getCompatibilityInfo().applicationScale != 1591 mResources.getCompatibilityInfo().applicationScale) { 1592 if (DEBUG) { 1593 Log.d(TAG, "loaded context has different scaling. Using container's" + 1594 " compatiblity info:" + container.getDisplayMetrics()); 1595 } 1596 mResources = mainThread.getTopLevelResources( 1597 mPackageInfo.getResDir(), container.getCompatibilityInfo()); 1598 } 1599 mMainThread = mainThread; 1600 mContentResolver = new ApplicationContentResolver(this, mainThread); 1601 1602 setActivityToken(activityToken); 1603 } 1604 1605 final void init(Resources resources, ActivityThread mainThread) { 1606 mPackageInfo = null; 1607 mBasePackageName = null; 1608 mResources = resources; 1609 mMainThread = mainThread; 1610 mContentResolver = new ApplicationContentResolver(this, mainThread); 1611 } 1612 1613 final void scheduleFinalCleanup(String who, String what) { 1614 mMainThread.scheduleContextCleanup(this, who, what); 1615 } 1616 1617 final void performFinalCleanup(String who, String what) { 1618 //Log.i(TAG, "Cleanup up context: " + this); 1619 mPackageInfo.removeContextRegistrations(getOuterContext(), who, what); 1620 } 1621 1622 final Context getReceiverRestrictedContext() { 1623 if (mReceiverRestrictedContext != null) { 1624 return mReceiverRestrictedContext; 1625 } 1626 return mReceiverRestrictedContext = new ReceiverRestrictedContext(getOuterContext()); 1627 } 1628 1629 final void setActivityToken(IBinder token) { 1630 mActivityToken = token; 1631 } 1632 1633 final void setOuterContext(Context context) { 1634 mOuterContext = context; 1635 } 1636 1637 final Context getOuterContext() { 1638 return mOuterContext; 1639 } 1640 1641 final IBinder getActivityToken() { 1642 return mActivityToken; 1643 } 1644 1645 static void setFilePermissionsFromMode(String name, int mode, 1646 int extraPermissions) { 1647 int perms = FileUtils.S_IRUSR|FileUtils.S_IWUSR 1648 |FileUtils.S_IRGRP|FileUtils.S_IWGRP 1649 |extraPermissions; 1650 if ((mode&MODE_WORLD_READABLE) != 0) { 1651 perms |= FileUtils.S_IROTH; 1652 } 1653 if ((mode&MODE_WORLD_WRITEABLE) != 0) { 1654 perms |= FileUtils.S_IWOTH; 1655 } 1656 if (DEBUG) { 1657 Log.i(TAG, "File " + name + ": mode=0x" + Integer.toHexString(mode) 1658 + ", perms=0x" + Integer.toHexString(perms)); 1659 } 1660 FileUtils.setPermissions(name, perms, -1, -1); 1661 } 1662 1663 private File validateFilePath(String name, boolean createDirectory) { 1664 File dir; 1665 File f; 1666 1667 if (name.charAt(0) == File.separatorChar) { 1668 String dirPath = name.substring(0, name.lastIndexOf(File.separatorChar)); 1669 dir = new File(dirPath); 1670 name = name.substring(name.lastIndexOf(File.separatorChar)); 1671 f = new File(dir, name); 1672 } else { 1673 dir = getDatabasesDir(); 1674 f = makeFilename(dir, name); 1675 } 1676 1677 if (createDirectory && !dir.isDirectory() && dir.mkdir()) { 1678 FileUtils.setPermissions(dir.getPath(), 1679 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1680 -1, -1); 1681 } 1682 1683 return f; 1684 } 1685 1686 private File makeFilename(File base, String name) { 1687 if (name.indexOf(File.separatorChar) < 0) { 1688 return new File(base, name); 1689 } 1690 throw new IllegalArgumentException( 1691 "File " + name + " contains a path separator"); 1692 } 1693 1694 // ---------------------------------------------------------------------- 1695 // ---------------------------------------------------------------------- 1696 // ---------------------------------------------------------------------- 1697 1698 private static final class ApplicationContentResolver extends ContentResolver { 1699 public ApplicationContentResolver(Context context, ActivityThread mainThread) { 1700 super(context); 1701 mMainThread = mainThread; 1702 } 1703 1704 @Override 1705 protected IContentProvider acquireProvider(Context context, String name) { 1706 return mMainThread.acquireProvider(context, name, true); 1707 } 1708 1709 @Override 1710 protected IContentProvider acquireExistingProvider(Context context, String name) { 1711 return mMainThread.acquireExistingProvider(context, name, true); 1712 } 1713 1714 @Override 1715 public boolean releaseProvider(IContentProvider provider) { 1716 return mMainThread.releaseProvider(provider, true); 1717 } 1718 1719 @Override 1720 protected IContentProvider acquireUnstableProvider(Context c, String name) { 1721 return mMainThread.acquireProvider(c, name, false); 1722 } 1723 1724 @Override 1725 public boolean releaseUnstableProvider(IContentProvider icp) { 1726 return mMainThread.releaseProvider(icp, false); 1727 } 1728 1729 @Override 1730 public void unstableProviderDied(IContentProvider icp) { 1731 mMainThread.handleUnstableProviderDied(icp.asBinder(), true); 1732 } 1733 1734 private final ActivityThread mMainThread; 1735 } 1736} 1737