ContextImpl.java revision d58429f9acdb33f05bdb233b7bba495de80cb336
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; 20import com.android.internal.util.XmlUtils; 21import com.google.android.collect.Maps; 22 23import org.xmlpull.v1.XmlPullParserException; 24 25import android.content.BroadcastReceiver; 26import android.content.ComponentName; 27import android.content.ContentResolver; 28import android.content.Context; 29import android.content.ContextWrapper; 30import android.content.IContentProvider; 31import android.content.Intent; 32import android.content.IntentFilter; 33import android.content.IIntentReceiver; 34import android.content.IntentSender; 35import android.content.ReceiverCallNotAllowedException; 36import android.content.ServiceConnection; 37import android.content.SharedPreferences; 38import android.content.pm.ActivityInfo; 39import android.content.pm.ApplicationInfo; 40import android.content.pm.ComponentInfo; 41import android.content.pm.FeatureInfo; 42import android.content.pm.IPackageDataObserver; 43import android.content.pm.IPackageDeleteObserver; 44import android.content.pm.IPackageInstallObserver; 45import android.content.pm.IPackageMoveObserver; 46import android.content.pm.IPackageManager; 47import android.content.pm.IPackageStatsObserver; 48import android.content.pm.InstrumentationInfo; 49import android.content.pm.PackageInfo; 50import android.content.pm.PackageManager; 51import android.content.pm.PermissionGroupInfo; 52import android.content.pm.PermissionInfo; 53import android.content.pm.ProviderInfo; 54import android.content.pm.ResolveInfo; 55import android.content.pm.ServiceInfo; 56import android.content.res.AssetManager; 57import android.content.res.Resources; 58import android.content.res.XmlResourceParser; 59import android.database.DatabaseErrorHandler; 60import android.database.sqlite.SQLiteDatabase; 61import android.database.sqlite.SQLiteDatabase.CursorFactory; 62import android.graphics.Bitmap; 63import android.graphics.drawable.Drawable; 64import android.hardware.SensorManager; 65import android.location.CountryDetector; 66import android.location.ICountryDetector; 67import android.location.ILocationManager; 68import android.location.LocationManager; 69import android.media.AudioManager; 70import android.net.ConnectivityManager; 71import android.net.IConnectivityManager; 72import android.net.ThrottleManager; 73import android.net.IThrottleManager; 74import android.net.Uri; 75import android.net.wifi.IWifiManager; 76import android.net.wifi.WifiManager; 77import android.os.Binder; 78import android.os.Build; 79import android.os.Bundle; 80import android.os.DropBoxManager; 81import android.os.Environment; 82import android.os.FileUtils; 83import android.os.Handler; 84import android.os.IBinder; 85import android.os.IPowerManager; 86import android.os.Looper; 87import android.os.PowerManager; 88import android.os.Process; 89import android.os.RemoteException; 90import android.os.ServiceManager; 91import android.os.Vibrator; 92import android.os.FileUtils.FileStatus; 93import android.os.storage.StorageManager; 94import android.telephony.TelephonyManager; 95import android.content.ClipboardManager; 96import android.util.AndroidRuntimeException; 97import android.util.Log; 98import android.view.ContextThemeWrapper; 99import android.view.LayoutInflater; 100import android.view.WindowManagerImpl; 101import android.view.accessibility.AccessibilityManager; 102import android.view.inputmethod.InputMethodManager; 103import android.accounts.AccountManager; 104import android.accounts.IAccountManager; 105import android.app.admin.DevicePolicyManager; 106 107import com.android.internal.os.IDropBoxManagerService; 108 109import java.io.File; 110import java.io.FileInputStream; 111import java.io.FileNotFoundException; 112import java.io.FileOutputStream; 113import java.io.IOException; 114import java.io.InputStream; 115import java.lang.ref.WeakReference; 116import java.util.ArrayList; 117import java.util.HashMap; 118import java.util.HashSet; 119import java.util.Iterator; 120import java.util.List; 121import java.util.Map; 122import java.util.Map.Entry; 123import java.util.Set; 124import java.util.WeakHashMap; 125import java.util.concurrent.CountDownLatch; 126import java.util.concurrent.ExecutorService; 127 128class ReceiverRestrictedContext extends ContextWrapper { 129 ReceiverRestrictedContext(Context base) { 130 super(base); 131 } 132 133 @Override 134 public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter) { 135 return registerReceiver(receiver, filter, null, null); 136 } 137 138 @Override 139 public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter, 140 String broadcastPermission, Handler scheduler) { 141 throw new ReceiverCallNotAllowedException( 142 "IntentReceiver components are not allowed to register to receive intents"); 143 //ex.fillInStackTrace(); 144 //Log.e("IntentReceiver", ex.getMessage(), ex); 145 //return mContext.registerReceiver(receiver, filter, broadcastPermission, 146 // scheduler); 147 } 148 149 @Override 150 public boolean bindService(Intent service, ServiceConnection conn, int flags) { 151 throw new ReceiverCallNotAllowedException( 152 "IntentReceiver components are not allowed to bind to services"); 153 //ex.fillInStackTrace(); 154 //Log.e("IntentReceiver", ex.getMessage(), ex); 155 //return mContext.bindService(service, interfaceName, conn, flags); 156 } 157} 158 159/** 160 * Common implementation of Context API, which provides the base 161 * context object for Activity and other application components. 162 */ 163class ContextImpl extends Context { 164 private final static String TAG = "ApplicationContext"; 165 private final static boolean DEBUG = false; 166 private final static boolean DEBUG_ICONS = false; 167 168 private static final Object sSync = new Object(); 169 private static AlarmManager sAlarmManager; 170 private static PowerManager sPowerManager; 171 private static ConnectivityManager sConnectivityManager; 172 private static ThrottleManager sThrottleManager; 173 private static WifiManager sWifiManager; 174 private static LocationManager sLocationManager; 175 private static CountryDetector sCountryDetector; 176 private static final HashMap<String, SharedPreferencesImpl> sSharedPrefs = 177 new HashMap<String, SharedPreferencesImpl>(); 178 179 private AudioManager mAudioManager; 180 /*package*/ LoadedApk mPackageInfo; 181 private Resources mResources; 182 /*package*/ ActivityThread mMainThread; 183 private Context mOuterContext; 184 private IBinder mActivityToken = null; 185 private ApplicationContentResolver mContentResolver; 186 private int mThemeResource = 0; 187 private Resources.Theme mTheme = null; 188 private PackageManager mPackageManager; 189 private NotificationManager mNotificationManager = null; 190 private ActivityManager mActivityManager = null; 191 private WallpaperManager mWallpaperManager = null; 192 private Context mReceiverRestrictedContext = null; 193 private SearchManager mSearchManager = null; 194 private SensorManager mSensorManager = null; 195 private StorageManager mStorageManager = null; 196 private Vibrator mVibrator = null; 197 private LayoutInflater mLayoutInflater = null; 198 private StatusBarManager mStatusBarManager = null; 199 private TelephonyManager mTelephonyManager = null; 200 private ClipboardManager mClipboardManager = null; 201 private boolean mRestricted; 202 private AccountManager mAccountManager; // protected by mSync 203 private DropBoxManager mDropBoxManager = null; 204 private DevicePolicyManager mDevicePolicyManager = null; 205 private UiModeManager mUiModeManager = null; 206 private DownloadManager mDownloadManager = null; 207 208 private final Object mSync = new Object(); 209 210 private File mDatabasesDir; 211 private File mPreferencesDir; 212 private File mFilesDir; 213 private File mCacheDir; 214 private File mExternalFilesDir; 215 private File mExternalCacheDir; 216 217 private static final String[] EMPTY_FILE_LIST = {}; 218 219 @Override 220 public AssetManager getAssets() { 221 return mResources.getAssets(); 222 } 223 224 @Override 225 public Resources getResources() { 226 return mResources; 227 } 228 229 @Override 230 public PackageManager getPackageManager() { 231 if (mPackageManager != null) { 232 return mPackageManager; 233 } 234 235 IPackageManager pm = ActivityThread.getPackageManager(); 236 if (pm != null) { 237 // Doesn't matter if we make more than one instance. 238 return (mPackageManager = new ApplicationPackageManager(this, pm)); 239 } 240 241 return null; 242 } 243 244 @Override 245 public ContentResolver getContentResolver() { 246 return mContentResolver; 247 } 248 249 @Override 250 public Looper getMainLooper() { 251 return mMainThread.getLooper(); 252 } 253 254 @Override 255 public Context getApplicationContext() { 256 return (mPackageInfo != null) ? 257 mPackageInfo.getApplication() : mMainThread.getApplication(); 258 } 259 260 @Override 261 public void setTheme(int resid) { 262 mThemeResource = resid; 263 } 264 265 @Override 266 public Resources.Theme getTheme() { 267 if (mTheme == null) { 268 if (mThemeResource == 0) { 269 mThemeResource = com.android.internal.R.style.Theme; 270 } 271 mTheme = mResources.newTheme(); 272 mTheme.applyStyle(mThemeResource, true); 273 } 274 return mTheme; 275 } 276 277 @Override 278 public ClassLoader getClassLoader() { 279 return mPackageInfo != null ? 280 mPackageInfo.getClassLoader() : ClassLoader.getSystemClassLoader(); 281 } 282 283 @Override 284 public String getPackageName() { 285 if (mPackageInfo != null) { 286 return mPackageInfo.getPackageName(); 287 } 288 throw new RuntimeException("Not supported in system context"); 289 } 290 291 @Override 292 public ApplicationInfo getApplicationInfo() { 293 if (mPackageInfo != null) { 294 return mPackageInfo.getApplicationInfo(); 295 } 296 throw new RuntimeException("Not supported in system context"); 297 } 298 299 @Override 300 public String getPackageResourcePath() { 301 if (mPackageInfo != null) { 302 return mPackageInfo.getResDir(); 303 } 304 throw new RuntimeException("Not supported in system context"); 305 } 306 307 @Override 308 public String getPackageCodePath() { 309 if (mPackageInfo != null) { 310 return mPackageInfo.getAppDir(); 311 } 312 throw new RuntimeException("Not supported in system context"); 313 } 314 315 private static File makeBackupFile(File prefsFile) { 316 return new File(prefsFile.getPath() + ".bak"); 317 } 318 319 public File getSharedPrefsFile(String name) { 320 return makeFilename(getPreferencesDir(), name + ".xml"); 321 } 322 323 @Override 324 public SharedPreferences getSharedPreferences(String name, int mode) { 325 SharedPreferencesImpl sp; 326 File prefsFile; 327 boolean needInitialLoad = false; 328 synchronized (sSharedPrefs) { 329 sp = sSharedPrefs.get(name); 330 if (sp != null && !sp.hasFileChangedUnexpectedly()) { 331 return sp; 332 } 333 prefsFile = getSharedPrefsFile(name); 334 if (sp == null) { 335 sp = new SharedPreferencesImpl(prefsFile, mode, null); 336 sSharedPrefs.put(name, sp); 337 needInitialLoad = true; 338 } 339 } 340 341 synchronized (sp) { 342 if (needInitialLoad && sp.isLoaded()) { 343 // lost the race to load; another thread handled it 344 return sp; 345 } 346 File backup = makeBackupFile(prefsFile); 347 if (backup.exists()) { 348 prefsFile.delete(); 349 backup.renameTo(prefsFile); 350 } 351 352 // Debugging 353 if (prefsFile.exists() && !prefsFile.canRead()) { 354 Log.w(TAG, "Attempt to read preferences file " + prefsFile + " without permission"); 355 } 356 357 Map map = null; 358 if (prefsFile.exists() && prefsFile.canRead()) { 359 try { 360 FileInputStream str = new FileInputStream(prefsFile); 361 map = XmlUtils.readMapXml(str); 362 str.close(); 363 } catch (org.xmlpull.v1.XmlPullParserException e) { 364 Log.w(TAG, "getSharedPreferences", e); 365 } catch (FileNotFoundException e) { 366 Log.w(TAG, "getSharedPreferences", e); 367 } catch (IOException e) { 368 Log.w(TAG, "getSharedPreferences", e); 369 } 370 } 371 sp.replace(map); 372 } 373 return sp; 374 } 375 376 private File getPreferencesDir() { 377 synchronized (mSync) { 378 if (mPreferencesDir == null) { 379 mPreferencesDir = new File(getDataDirFile(), "shared_prefs"); 380 } 381 return mPreferencesDir; 382 } 383 } 384 385 @Override 386 public FileInputStream openFileInput(String name) 387 throws FileNotFoundException { 388 File f = makeFilename(getFilesDir(), name); 389 return new FileInputStream(f); 390 } 391 392 @Override 393 public FileOutputStream openFileOutput(String name, int mode) 394 throws FileNotFoundException { 395 final boolean append = (mode&MODE_APPEND) != 0; 396 File f = makeFilename(getFilesDir(), name); 397 try { 398 FileOutputStream fos = new FileOutputStream(f, append); 399 setFilePermissionsFromMode(f.getPath(), mode, 0); 400 return fos; 401 } catch (FileNotFoundException e) { 402 } 403 404 File parent = f.getParentFile(); 405 parent.mkdir(); 406 FileUtils.setPermissions( 407 parent.getPath(), 408 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 409 -1, -1); 410 FileOutputStream fos = new FileOutputStream(f, append); 411 setFilePermissionsFromMode(f.getPath(), mode, 0); 412 return fos; 413 } 414 415 @Override 416 public boolean deleteFile(String name) { 417 File f = makeFilename(getFilesDir(), name); 418 return f.delete(); 419 } 420 421 @Override 422 public File getFilesDir() { 423 synchronized (mSync) { 424 if (mFilesDir == null) { 425 mFilesDir = new File(getDataDirFile(), "files"); 426 } 427 if (!mFilesDir.exists()) { 428 if(!mFilesDir.mkdirs()) { 429 Log.w(TAG, "Unable to create files directory " + mFilesDir.getPath()); 430 return null; 431 } 432 FileUtils.setPermissions( 433 mFilesDir.getPath(), 434 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 435 -1, -1); 436 } 437 return mFilesDir; 438 } 439 } 440 441 @Override 442 public File getExternalFilesDir(String type) { 443 synchronized (mSync) { 444 if (mExternalFilesDir == null) { 445 mExternalFilesDir = Environment.getExternalStorageAppFilesDirectory( 446 getPackageName()); 447 } 448 if (!mExternalFilesDir.exists()) { 449 try { 450 (new File(Environment.getExternalStorageAndroidDataDir(), 451 ".nomedia")).createNewFile(); 452 } catch (IOException e) { 453 } 454 if (!mExternalFilesDir.mkdirs()) { 455 Log.w(TAG, "Unable to create external files directory"); 456 return null; 457 } 458 } 459 if (type == null) { 460 return mExternalFilesDir; 461 } 462 File dir = new File(mExternalFilesDir, type); 463 if (!dir.exists()) { 464 if (!dir.mkdirs()) { 465 Log.w(TAG, "Unable to create external media directory " + dir); 466 return null; 467 } 468 } 469 return dir; 470 } 471 } 472 473 @Override 474 public File getCacheDir() { 475 synchronized (mSync) { 476 if (mCacheDir == null) { 477 mCacheDir = new File(getDataDirFile(), "cache"); 478 } 479 if (!mCacheDir.exists()) { 480 if(!mCacheDir.mkdirs()) { 481 Log.w(TAG, "Unable to create cache directory"); 482 return null; 483 } 484 FileUtils.setPermissions( 485 mCacheDir.getPath(), 486 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 487 -1, -1); 488 } 489 } 490 return mCacheDir; 491 } 492 493 @Override 494 public File getExternalCacheDir() { 495 synchronized (mSync) { 496 if (mExternalCacheDir == null) { 497 mExternalCacheDir = Environment.getExternalStorageAppCacheDirectory( 498 getPackageName()); 499 } 500 if (!mExternalCacheDir.exists()) { 501 try { 502 (new File(Environment.getExternalStorageAndroidDataDir(), 503 ".nomedia")).createNewFile(); 504 } catch (IOException e) { 505 } 506 if (!mExternalCacheDir.mkdirs()) { 507 Log.w(TAG, "Unable to create external cache directory"); 508 return null; 509 } 510 } 511 return mExternalCacheDir; 512 } 513 } 514 515 @Override 516 public File getFileStreamPath(String name) { 517 return makeFilename(getFilesDir(), name); 518 } 519 520 @Override 521 public String[] fileList() { 522 final String[] list = getFilesDir().list(); 523 return (list != null) ? list : EMPTY_FILE_LIST; 524 } 525 526 @Override 527 public SQLiteDatabase openOrCreateDatabase(String name, int mode, CursorFactory factory) { 528 File f = validateFilePath(name, true); 529 SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabase(f, factory); 530 setFilePermissionsFromMode(f.getPath(), mode, 0); 531 return db; 532 } 533 534 @Override 535 public SQLiteDatabase openOrCreateDatabase(String name, int mode, CursorFactory factory, 536 DatabaseErrorHandler errorHandler) { 537 File f = validateFilePath(name, true); 538 SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabase(f.getPath(), factory, errorHandler); 539 setFilePermissionsFromMode(f.getPath(), mode, 0); 540 return db; 541 } 542 543 @Override 544 public boolean deleteDatabase(String name) { 545 try { 546 File f = validateFilePath(name, false); 547 return f.delete(); 548 } catch (Exception e) { 549 } 550 return false; 551 } 552 553 @Override 554 public File getDatabasePath(String name) { 555 return validateFilePath(name, false); 556 } 557 558 @Override 559 public String[] databaseList() { 560 final String[] list = getDatabasesDir().list(); 561 return (list != null) ? list : EMPTY_FILE_LIST; 562 } 563 564 565 private File getDatabasesDir() { 566 synchronized (mSync) { 567 if (mDatabasesDir == null) { 568 mDatabasesDir = new File(getDataDirFile(), "databases"); 569 } 570 if (mDatabasesDir.getPath().equals("databases")) { 571 mDatabasesDir = new File("/data/system"); 572 } 573 return mDatabasesDir; 574 } 575 } 576 577 @Override 578 public Drawable getWallpaper() { 579 return getWallpaperManager().getDrawable(); 580 } 581 582 @Override 583 public Drawable peekWallpaper() { 584 return getWallpaperManager().peekDrawable(); 585 } 586 587 @Override 588 public int getWallpaperDesiredMinimumWidth() { 589 return getWallpaperManager().getDesiredMinimumWidth(); 590 } 591 592 @Override 593 public int getWallpaperDesiredMinimumHeight() { 594 return getWallpaperManager().getDesiredMinimumHeight(); 595 } 596 597 @Override 598 public void setWallpaper(Bitmap bitmap) throws IOException { 599 getWallpaperManager().setBitmap(bitmap); 600 } 601 602 @Override 603 public void setWallpaper(InputStream data) throws IOException { 604 getWallpaperManager().setStream(data); 605 } 606 607 @Override 608 public void clearWallpaper() throws IOException { 609 getWallpaperManager().clear(); 610 } 611 612 @Override 613 public void startActivity(Intent intent) { 614 if ((intent.getFlags()&Intent.FLAG_ACTIVITY_NEW_TASK) == 0) { 615 throw new AndroidRuntimeException( 616 "Calling startActivity() from outside of an Activity " 617 + " context requires the FLAG_ACTIVITY_NEW_TASK flag." 618 + " Is this really what you want?"); 619 } 620 mMainThread.getInstrumentation().execStartActivity( 621 getOuterContext(), mMainThread.getApplicationThread(), null, 622 (Activity)null, intent, -1); 623 } 624 625 @Override 626 public void startIntentSender(IntentSender intent, 627 Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags) 628 throws IntentSender.SendIntentException { 629 try { 630 String resolvedType = null; 631 if (fillInIntent != null) { 632 resolvedType = fillInIntent.resolveTypeIfNeeded(getContentResolver()); 633 } 634 int result = ActivityManagerNative.getDefault() 635 .startActivityIntentSender(mMainThread.getApplicationThread(), intent, 636 fillInIntent, resolvedType, null, null, 637 0, flagsMask, flagsValues); 638 if (result == IActivityManager.START_CANCELED) { 639 throw new IntentSender.SendIntentException(); 640 } 641 Instrumentation.checkStartActivityResult(result, null); 642 } catch (RemoteException e) { 643 } 644 } 645 646 @Override 647 public void sendBroadcast(Intent intent) { 648 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 649 try { 650 ActivityManagerNative.getDefault().broadcastIntent( 651 mMainThread.getApplicationThread(), intent, resolvedType, null, 652 Activity.RESULT_OK, null, null, null, false, false); 653 } catch (RemoteException e) { 654 } 655 } 656 657 @Override 658 public void sendBroadcast(Intent intent, String receiverPermission) { 659 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 660 try { 661 ActivityManagerNative.getDefault().broadcastIntent( 662 mMainThread.getApplicationThread(), intent, resolvedType, null, 663 Activity.RESULT_OK, null, null, receiverPermission, false, false); 664 } catch (RemoteException e) { 665 } 666 } 667 668 @Override 669 public void sendOrderedBroadcast(Intent intent, 670 String receiverPermission) { 671 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 672 try { 673 ActivityManagerNative.getDefault().broadcastIntent( 674 mMainThread.getApplicationThread(), intent, resolvedType, null, 675 Activity.RESULT_OK, null, null, receiverPermission, true, false); 676 } catch (RemoteException e) { 677 } 678 } 679 680 @Override 681 public void sendOrderedBroadcast(Intent intent, 682 String receiverPermission, BroadcastReceiver resultReceiver, 683 Handler scheduler, int initialCode, String initialData, 684 Bundle initialExtras) { 685 IIntentReceiver rd = null; 686 if (resultReceiver != null) { 687 if (mPackageInfo != null) { 688 if (scheduler == null) { 689 scheduler = mMainThread.getHandler(); 690 } 691 rd = mPackageInfo.getReceiverDispatcher( 692 resultReceiver, getOuterContext(), scheduler, 693 mMainThread.getInstrumentation(), false); 694 } else { 695 if (scheduler == null) { 696 scheduler = mMainThread.getHandler(); 697 } 698 rd = new LoadedApk.ReceiverDispatcher( 699 resultReceiver, getOuterContext(), scheduler, null, false).getIIntentReceiver(); 700 } 701 } 702 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 703 try { 704 ActivityManagerNative.getDefault().broadcastIntent( 705 mMainThread.getApplicationThread(), intent, resolvedType, rd, 706 initialCode, initialData, initialExtras, receiverPermission, 707 true, false); 708 } catch (RemoteException e) { 709 } 710 } 711 712 @Override 713 public void sendStickyBroadcast(Intent intent) { 714 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 715 try { 716 ActivityManagerNative.getDefault().broadcastIntent( 717 mMainThread.getApplicationThread(), intent, resolvedType, null, 718 Activity.RESULT_OK, null, null, null, false, true); 719 } catch (RemoteException e) { 720 } 721 } 722 723 @Override 724 public void sendStickyOrderedBroadcast(Intent intent, 725 BroadcastReceiver resultReceiver, 726 Handler scheduler, int initialCode, String initialData, 727 Bundle initialExtras) { 728 IIntentReceiver rd = null; 729 if (resultReceiver != null) { 730 if (mPackageInfo != null) { 731 if (scheduler == null) { 732 scheduler = mMainThread.getHandler(); 733 } 734 rd = mPackageInfo.getReceiverDispatcher( 735 resultReceiver, getOuterContext(), scheduler, 736 mMainThread.getInstrumentation(), false); 737 } else { 738 if (scheduler == null) { 739 scheduler = mMainThread.getHandler(); 740 } 741 rd = new LoadedApk.ReceiverDispatcher( 742 resultReceiver, getOuterContext(), scheduler, null, false).getIIntentReceiver(); 743 } 744 } 745 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 746 try { 747 ActivityManagerNative.getDefault().broadcastIntent( 748 mMainThread.getApplicationThread(), intent, resolvedType, rd, 749 initialCode, initialData, initialExtras, null, 750 true, true); 751 } catch (RemoteException e) { 752 } 753 } 754 755 @Override 756 public void removeStickyBroadcast(Intent intent) { 757 String resolvedType = intent.resolveTypeIfNeeded(getContentResolver()); 758 if (resolvedType != null) { 759 intent = new Intent(intent); 760 intent.setDataAndType(intent.getData(), resolvedType); 761 } 762 try { 763 ActivityManagerNative.getDefault().unbroadcastIntent( 764 mMainThread.getApplicationThread(), intent); 765 } catch (RemoteException e) { 766 } 767 } 768 769 @Override 770 public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter) { 771 return registerReceiver(receiver, filter, null, null); 772 } 773 774 @Override 775 public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter, 776 String broadcastPermission, Handler scheduler) { 777 return registerReceiverInternal(receiver, filter, broadcastPermission, 778 scheduler, getOuterContext()); 779 } 780 781 private Intent registerReceiverInternal(BroadcastReceiver receiver, 782 IntentFilter filter, String broadcastPermission, 783 Handler scheduler, Context context) { 784 IIntentReceiver rd = null; 785 if (receiver != null) { 786 if (mPackageInfo != null && context != null) { 787 if (scheduler == null) { 788 scheduler = mMainThread.getHandler(); 789 } 790 rd = mPackageInfo.getReceiverDispatcher( 791 receiver, context, scheduler, 792 mMainThread.getInstrumentation(), true); 793 } else { 794 if (scheduler == null) { 795 scheduler = mMainThread.getHandler(); 796 } 797 rd = new LoadedApk.ReceiverDispatcher( 798 receiver, context, scheduler, null, true).getIIntentReceiver(); 799 } 800 } 801 try { 802 return ActivityManagerNative.getDefault().registerReceiver( 803 mMainThread.getApplicationThread(), 804 rd, filter, broadcastPermission); 805 } catch (RemoteException e) { 806 return null; 807 } 808 } 809 810 @Override 811 public void unregisterReceiver(BroadcastReceiver receiver) { 812 if (mPackageInfo != null) { 813 IIntentReceiver rd = mPackageInfo.forgetReceiverDispatcher( 814 getOuterContext(), receiver); 815 try { 816 ActivityManagerNative.getDefault().unregisterReceiver(rd); 817 } catch (RemoteException e) { 818 } 819 } else { 820 throw new RuntimeException("Not supported in system context"); 821 } 822 } 823 824 @Override 825 public ComponentName startService(Intent service) { 826 try { 827 ComponentName cn = ActivityManagerNative.getDefault().startService( 828 mMainThread.getApplicationThread(), service, 829 service.resolveTypeIfNeeded(getContentResolver())); 830 if (cn != null && cn.getPackageName().equals("!")) { 831 throw new SecurityException( 832 "Not allowed to start service " + service 833 + " without permission " + cn.getClassName()); 834 } 835 return cn; 836 } catch (RemoteException e) { 837 return null; 838 } 839 } 840 841 @Override 842 public boolean stopService(Intent service) { 843 try { 844 int res = ActivityManagerNative.getDefault().stopService( 845 mMainThread.getApplicationThread(), service, 846 service.resolveTypeIfNeeded(getContentResolver())); 847 if (res < 0) { 848 throw new SecurityException( 849 "Not allowed to stop service " + service); 850 } 851 return res != 0; 852 } catch (RemoteException e) { 853 return false; 854 } 855 } 856 857 @Override 858 public boolean bindService(Intent service, ServiceConnection conn, 859 int flags) { 860 IServiceConnection sd; 861 if (mPackageInfo != null) { 862 sd = mPackageInfo.getServiceDispatcher(conn, getOuterContext(), 863 mMainThread.getHandler(), flags); 864 } else { 865 throw new RuntimeException("Not supported in system context"); 866 } 867 try { 868 int res = ActivityManagerNative.getDefault().bindService( 869 mMainThread.getApplicationThread(), getActivityToken(), 870 service, service.resolveTypeIfNeeded(getContentResolver()), 871 sd, flags); 872 if (res < 0) { 873 throw new SecurityException( 874 "Not allowed to bind to service " + service); 875 } 876 return res != 0; 877 } catch (RemoteException e) { 878 return false; 879 } 880 } 881 882 @Override 883 public void unbindService(ServiceConnection conn) { 884 if (mPackageInfo != null) { 885 IServiceConnection sd = mPackageInfo.forgetServiceDispatcher( 886 getOuterContext(), conn); 887 try { 888 ActivityManagerNative.getDefault().unbindService(sd); 889 } catch (RemoteException e) { 890 } 891 } else { 892 throw new RuntimeException("Not supported in system context"); 893 } 894 } 895 896 @Override 897 public boolean startInstrumentation(ComponentName className, 898 String profileFile, Bundle arguments) { 899 try { 900 return ActivityManagerNative.getDefault().startInstrumentation( 901 className, profileFile, 0, arguments, null); 902 } catch (RemoteException e) { 903 // System has crashed, nothing we can do. 904 } 905 return false; 906 } 907 908 @Override 909 public Object getSystemService(String name) { 910 if (WINDOW_SERVICE.equals(name)) { 911 return WindowManagerImpl.getDefault(); 912 } else if (LAYOUT_INFLATER_SERVICE.equals(name)) { 913 synchronized (mSync) { 914 LayoutInflater inflater = mLayoutInflater; 915 if (inflater != null) { 916 return inflater; 917 } 918 mLayoutInflater = inflater = 919 PolicyManager.makeNewLayoutInflater(getOuterContext()); 920 return inflater; 921 } 922 } else if (ACTIVITY_SERVICE.equals(name)) { 923 return getActivityManager(); 924 } else if (INPUT_METHOD_SERVICE.equals(name)) { 925 return InputMethodManager.getInstance(this); 926 } else if (ALARM_SERVICE.equals(name)) { 927 return getAlarmManager(); 928 } else if (ACCOUNT_SERVICE.equals(name)) { 929 return getAccountManager(); 930 } else if (POWER_SERVICE.equals(name)) { 931 return getPowerManager(); 932 } else if (CONNECTIVITY_SERVICE.equals(name)) { 933 return getConnectivityManager(); 934 } else if (THROTTLE_SERVICE.equals(name)) { 935 return getThrottleManager(); 936 } else if (WIFI_SERVICE.equals(name)) { 937 return getWifiManager(); 938 } else if (NOTIFICATION_SERVICE.equals(name)) { 939 return getNotificationManager(); 940 } else if (KEYGUARD_SERVICE.equals(name)) { 941 return new KeyguardManager(); 942 } else if (ACCESSIBILITY_SERVICE.equals(name)) { 943 return AccessibilityManager.getInstance(this); 944 } else if (LOCATION_SERVICE.equals(name)) { 945 return getLocationManager(); 946 } else if (COUNTRY_DETECTOR.equals(name)) { 947 return getCountryDetector(); 948 } else if (SEARCH_SERVICE.equals(name)) { 949 return getSearchManager(); 950 } else if (SENSOR_SERVICE.equals(name)) { 951 return getSensorManager(); 952 } else if (STORAGE_SERVICE.equals(name)) { 953 return getStorageManager(); 954 } else if (VIBRATOR_SERVICE.equals(name)) { 955 return getVibrator(); 956 } else if (STATUS_BAR_SERVICE.equals(name)) { 957 synchronized (mSync) { 958 if (mStatusBarManager == null) { 959 mStatusBarManager = new StatusBarManager(getOuterContext()); 960 } 961 return mStatusBarManager; 962 } 963 } else if (AUDIO_SERVICE.equals(name)) { 964 return getAudioManager(); 965 } else if (TELEPHONY_SERVICE.equals(name)) { 966 return getTelephonyManager(); 967 } else if (CLIPBOARD_SERVICE.equals(name)) { 968 return getClipboardManager(); 969 } else if (WALLPAPER_SERVICE.equals(name)) { 970 return getWallpaperManager(); 971 } else if (DROPBOX_SERVICE.equals(name)) { 972 return getDropBoxManager(); 973 } else if (DEVICE_POLICY_SERVICE.equals(name)) { 974 return getDevicePolicyManager(); 975 } else if (UI_MODE_SERVICE.equals(name)) { 976 return getUiModeManager(); 977 } else if (DOWNLOAD_SERVICE.equals(name)) { 978 return getDownloadManager(); 979 } 980 981 return null; 982 } 983 984 private AccountManager getAccountManager() { 985 synchronized (mSync) { 986 if (mAccountManager == null) { 987 IBinder b = ServiceManager.getService(ACCOUNT_SERVICE); 988 IAccountManager service = IAccountManager.Stub.asInterface(b); 989 mAccountManager = new AccountManager(this, service); 990 } 991 return mAccountManager; 992 } 993 } 994 995 private ActivityManager getActivityManager() { 996 synchronized (mSync) { 997 if (mActivityManager == null) { 998 mActivityManager = new ActivityManager(getOuterContext(), 999 mMainThread.getHandler()); 1000 } 1001 } 1002 return mActivityManager; 1003 } 1004 1005 private AlarmManager getAlarmManager() { 1006 synchronized (sSync) { 1007 if (sAlarmManager == null) { 1008 IBinder b = ServiceManager.getService(ALARM_SERVICE); 1009 IAlarmManager service = IAlarmManager.Stub.asInterface(b); 1010 sAlarmManager = new AlarmManager(service); 1011 } 1012 } 1013 return sAlarmManager; 1014 } 1015 1016 private PowerManager getPowerManager() { 1017 synchronized (sSync) { 1018 if (sPowerManager == null) { 1019 IBinder b = ServiceManager.getService(POWER_SERVICE); 1020 IPowerManager service = IPowerManager.Stub.asInterface(b); 1021 sPowerManager = new PowerManager(service, mMainThread.getHandler()); 1022 } 1023 } 1024 return sPowerManager; 1025 } 1026 1027 private ConnectivityManager getConnectivityManager() 1028 { 1029 synchronized (sSync) { 1030 if (sConnectivityManager == null) { 1031 IBinder b = ServiceManager.getService(CONNECTIVITY_SERVICE); 1032 IConnectivityManager service = IConnectivityManager.Stub.asInterface(b); 1033 sConnectivityManager = new ConnectivityManager(service); 1034 } 1035 } 1036 return sConnectivityManager; 1037 } 1038 1039 private ThrottleManager getThrottleManager() 1040 { 1041 synchronized (sSync) { 1042 if (sThrottleManager == null) { 1043 IBinder b = ServiceManager.getService(THROTTLE_SERVICE); 1044 IThrottleManager service = IThrottleManager.Stub.asInterface(b); 1045 sThrottleManager = new ThrottleManager(service); 1046 } 1047 } 1048 return sThrottleManager; 1049 } 1050 1051 private WifiManager getWifiManager() 1052 { 1053 synchronized (sSync) { 1054 if (sWifiManager == null) { 1055 IBinder b = ServiceManager.getService(WIFI_SERVICE); 1056 IWifiManager service = IWifiManager.Stub.asInterface(b); 1057 sWifiManager = new WifiManager(service, mMainThread.getHandler()); 1058 } 1059 } 1060 return sWifiManager; 1061 } 1062 1063 private NotificationManager getNotificationManager() { 1064 synchronized (mSync) { 1065 if (mNotificationManager == null) { 1066 final Context outerContext = getOuterContext(); 1067 mNotificationManager = new NotificationManager( 1068 new ContextThemeWrapper(outerContext, 1069 outerContext.getApplicationInfo().targetSdkVersion >= 1070 Build.VERSION_CODES.HONEYCOMB 1071 ? com.android.internal.R.style.Theme_Holo_Dialog 1072 : com.android.internal.R.style.Theme_Dialog), 1073 mMainThread.getHandler()); 1074 } 1075 } 1076 return mNotificationManager; 1077 } 1078 1079 private WallpaperManager getWallpaperManager() { 1080 synchronized (mSync) { 1081 if (mWallpaperManager == null) { 1082 mWallpaperManager = new WallpaperManager(getOuterContext(), 1083 mMainThread.getHandler()); 1084 } 1085 } 1086 return mWallpaperManager; 1087 } 1088 1089 private TelephonyManager getTelephonyManager() { 1090 synchronized (mSync) { 1091 if (mTelephonyManager == null) { 1092 mTelephonyManager = new TelephonyManager(getOuterContext()); 1093 } 1094 } 1095 return mTelephonyManager; 1096 } 1097 1098 private ClipboardManager getClipboardManager() { 1099 synchronized (mSync) { 1100 if (mClipboardManager == null) { 1101 mClipboardManager = new ClipboardManager(getOuterContext(), 1102 mMainThread.getHandler()); 1103 } 1104 } 1105 return mClipboardManager; 1106 } 1107 1108 private LocationManager getLocationManager() { 1109 synchronized (sSync) { 1110 if (sLocationManager == null) { 1111 IBinder b = ServiceManager.getService(LOCATION_SERVICE); 1112 ILocationManager service = ILocationManager.Stub.asInterface(b); 1113 sLocationManager = new LocationManager(service); 1114 } 1115 } 1116 return sLocationManager; 1117 } 1118 1119 private CountryDetector getCountryDetector() { 1120 synchronized (sSync) { 1121 if (sCountryDetector == null) { 1122 IBinder b = ServiceManager.getService(COUNTRY_DETECTOR); 1123 ICountryDetector service = ICountryDetector.Stub.asInterface(b); 1124 sCountryDetector = new CountryDetector(service); 1125 } 1126 } 1127 return sCountryDetector; 1128 } 1129 1130 private SearchManager getSearchManager() { 1131 synchronized (mSync) { 1132 if (mSearchManager == null) { 1133 mSearchManager = new SearchManager(getOuterContext(), mMainThread.getHandler()); 1134 } 1135 } 1136 return mSearchManager; 1137 } 1138 1139 private SensorManager getSensorManager() { 1140 synchronized (mSync) { 1141 if (mSensorManager == null) { 1142 mSensorManager = new SensorManager(mMainThread.getHandler().getLooper()); 1143 } 1144 } 1145 return mSensorManager; 1146 } 1147 1148 private StorageManager getStorageManager() { 1149 synchronized (mSync) { 1150 if (mStorageManager == null) { 1151 try { 1152 mStorageManager = new StorageManager(mMainThread.getHandler().getLooper()); 1153 } catch (RemoteException rex) { 1154 Log.e(TAG, "Failed to create StorageManager", rex); 1155 mStorageManager = null; 1156 } 1157 } 1158 } 1159 return mStorageManager; 1160 } 1161 1162 private Vibrator getVibrator() { 1163 synchronized (mSync) { 1164 if (mVibrator == null) { 1165 mVibrator = new Vibrator(); 1166 } 1167 } 1168 return mVibrator; 1169 } 1170 1171 private AudioManager getAudioManager() 1172 { 1173 if (mAudioManager == null) { 1174 mAudioManager = new AudioManager(this); 1175 } 1176 return mAudioManager; 1177 } 1178 1179 /* package */ static DropBoxManager createDropBoxManager() { 1180 IBinder b = ServiceManager.getService(DROPBOX_SERVICE); 1181 IDropBoxManagerService service = IDropBoxManagerService.Stub.asInterface(b); 1182 return new DropBoxManager(service); 1183 } 1184 1185 private DropBoxManager getDropBoxManager() { 1186 synchronized (mSync) { 1187 if (mDropBoxManager == null) { 1188 mDropBoxManager = createDropBoxManager(); 1189 } 1190 } 1191 return mDropBoxManager; 1192 } 1193 1194 private DevicePolicyManager getDevicePolicyManager() { 1195 synchronized (mSync) { 1196 if (mDevicePolicyManager == null) { 1197 mDevicePolicyManager = DevicePolicyManager.create(this, 1198 mMainThread.getHandler()); 1199 } 1200 } 1201 return mDevicePolicyManager; 1202 } 1203 1204 private UiModeManager getUiModeManager() { 1205 synchronized (mSync) { 1206 if (mUiModeManager == null) { 1207 mUiModeManager = new UiModeManager(); 1208 } 1209 } 1210 return mUiModeManager; 1211 } 1212 1213 private DownloadManager getDownloadManager() { 1214 synchronized (mSync) { 1215 if (mDownloadManager == null) { 1216 mDownloadManager = new DownloadManager(getContentResolver(), getPackageName()); 1217 } 1218 } 1219 return mDownloadManager; 1220 } 1221 1222 @Override 1223 public int checkPermission(String permission, int pid, int uid) { 1224 if (permission == null) { 1225 throw new IllegalArgumentException("permission is null"); 1226 } 1227 1228 if (!Process.supportsProcesses()) { 1229 return PackageManager.PERMISSION_GRANTED; 1230 } 1231 try { 1232 return ActivityManagerNative.getDefault().checkPermission( 1233 permission, pid, uid); 1234 } catch (RemoteException e) { 1235 return PackageManager.PERMISSION_DENIED; 1236 } 1237 } 1238 1239 @Override 1240 public int checkCallingPermission(String permission) { 1241 if (permission == null) { 1242 throw new IllegalArgumentException("permission is null"); 1243 } 1244 1245 if (!Process.supportsProcesses()) { 1246 return PackageManager.PERMISSION_GRANTED; 1247 } 1248 int pid = Binder.getCallingPid(); 1249 if (pid != Process.myPid()) { 1250 return checkPermission(permission, pid, 1251 Binder.getCallingUid()); 1252 } 1253 return PackageManager.PERMISSION_DENIED; 1254 } 1255 1256 @Override 1257 public int checkCallingOrSelfPermission(String permission) { 1258 if (permission == null) { 1259 throw new IllegalArgumentException("permission is null"); 1260 } 1261 1262 return checkPermission(permission, Binder.getCallingPid(), 1263 Binder.getCallingUid()); 1264 } 1265 1266 private void enforce( 1267 String permission, int resultOfCheck, 1268 boolean selfToo, int uid, String message) { 1269 if (resultOfCheck != PackageManager.PERMISSION_GRANTED) { 1270 throw new SecurityException( 1271 (message != null ? (message + ": ") : "") + 1272 (selfToo 1273 ? "Neither user " + uid + " nor current process has " 1274 : "User " + uid + " does not have ") + 1275 permission + 1276 "."); 1277 } 1278 } 1279 1280 public void enforcePermission( 1281 String permission, int pid, int uid, String message) { 1282 enforce(permission, 1283 checkPermission(permission, pid, uid), 1284 false, 1285 uid, 1286 message); 1287 } 1288 1289 public void enforceCallingPermission(String permission, String message) { 1290 enforce(permission, 1291 checkCallingPermission(permission), 1292 false, 1293 Binder.getCallingUid(), 1294 message); 1295 } 1296 1297 public void enforceCallingOrSelfPermission( 1298 String permission, String message) { 1299 enforce(permission, 1300 checkCallingOrSelfPermission(permission), 1301 true, 1302 Binder.getCallingUid(), 1303 message); 1304 } 1305 1306 @Override 1307 public void grantUriPermission(String toPackage, Uri uri, int modeFlags) { 1308 try { 1309 ActivityManagerNative.getDefault().grantUriPermission( 1310 mMainThread.getApplicationThread(), toPackage, uri, 1311 modeFlags); 1312 } catch (RemoteException e) { 1313 } 1314 } 1315 1316 @Override 1317 public void revokeUriPermission(Uri uri, int modeFlags) { 1318 try { 1319 ActivityManagerNative.getDefault().revokeUriPermission( 1320 mMainThread.getApplicationThread(), uri, 1321 modeFlags); 1322 } catch (RemoteException e) { 1323 } 1324 } 1325 1326 @Override 1327 public int checkUriPermission(Uri uri, int pid, int uid, int modeFlags) { 1328 if (!Process.supportsProcesses()) { 1329 return PackageManager.PERMISSION_GRANTED; 1330 } 1331 try { 1332 return ActivityManagerNative.getDefault().checkUriPermission( 1333 uri, pid, uid, modeFlags); 1334 } catch (RemoteException e) { 1335 return PackageManager.PERMISSION_DENIED; 1336 } 1337 } 1338 1339 @Override 1340 public int checkCallingUriPermission(Uri uri, int modeFlags) { 1341 if (!Process.supportsProcesses()) { 1342 return PackageManager.PERMISSION_GRANTED; 1343 } 1344 int pid = Binder.getCallingPid(); 1345 if (pid != Process.myPid()) { 1346 return checkUriPermission(uri, pid, 1347 Binder.getCallingUid(), modeFlags); 1348 } 1349 return PackageManager.PERMISSION_DENIED; 1350 } 1351 1352 @Override 1353 public int checkCallingOrSelfUriPermission(Uri uri, int modeFlags) { 1354 return checkUriPermission(uri, Binder.getCallingPid(), 1355 Binder.getCallingUid(), modeFlags); 1356 } 1357 1358 @Override 1359 public int checkUriPermission(Uri uri, String readPermission, 1360 String writePermission, int pid, int uid, int modeFlags) { 1361 if (DEBUG) { 1362 Log.i("foo", "checkUriPermission: uri=" + uri + "readPermission=" 1363 + readPermission + " writePermission=" + writePermission 1364 + " pid=" + pid + " uid=" + uid + " mode" + modeFlags); 1365 } 1366 if ((modeFlags&Intent.FLAG_GRANT_READ_URI_PERMISSION) != 0) { 1367 if (readPermission == null 1368 || checkPermission(readPermission, pid, uid) 1369 == PackageManager.PERMISSION_GRANTED) { 1370 return PackageManager.PERMISSION_GRANTED; 1371 } 1372 } 1373 if ((modeFlags&Intent.FLAG_GRANT_WRITE_URI_PERMISSION) != 0) { 1374 if (writePermission == null 1375 || checkPermission(writePermission, pid, uid) 1376 == PackageManager.PERMISSION_GRANTED) { 1377 return PackageManager.PERMISSION_GRANTED; 1378 } 1379 } 1380 return uri != null ? checkUriPermission(uri, pid, uid, modeFlags) 1381 : PackageManager.PERMISSION_DENIED; 1382 } 1383 1384 private String uriModeFlagToString(int uriModeFlags) { 1385 switch (uriModeFlags) { 1386 case Intent.FLAG_GRANT_READ_URI_PERMISSION | 1387 Intent.FLAG_GRANT_WRITE_URI_PERMISSION: 1388 return "read and write"; 1389 case Intent.FLAG_GRANT_READ_URI_PERMISSION: 1390 return "read"; 1391 case Intent.FLAG_GRANT_WRITE_URI_PERMISSION: 1392 return "write"; 1393 } 1394 throw new IllegalArgumentException( 1395 "Unknown permission mode flags: " + uriModeFlags); 1396 } 1397 1398 private void enforceForUri( 1399 int modeFlags, int resultOfCheck, boolean selfToo, 1400 int uid, Uri uri, String message) { 1401 if (resultOfCheck != PackageManager.PERMISSION_GRANTED) { 1402 throw new SecurityException( 1403 (message != null ? (message + ": ") : "") + 1404 (selfToo 1405 ? "Neither user " + uid + " nor current process has " 1406 : "User " + uid + " does not have ") + 1407 uriModeFlagToString(modeFlags) + 1408 " permission on " + 1409 uri + 1410 "."); 1411 } 1412 } 1413 1414 public void enforceUriPermission( 1415 Uri uri, int pid, int uid, int modeFlags, String message) { 1416 enforceForUri( 1417 modeFlags, checkUriPermission(uri, pid, uid, modeFlags), 1418 false, uid, uri, message); 1419 } 1420 1421 public void enforceCallingUriPermission( 1422 Uri uri, int modeFlags, String message) { 1423 enforceForUri( 1424 modeFlags, checkCallingUriPermission(uri, modeFlags), 1425 false, Binder.getCallingUid(), uri, message); 1426 } 1427 1428 public void enforceCallingOrSelfUriPermission( 1429 Uri uri, int modeFlags, String message) { 1430 enforceForUri( 1431 modeFlags, 1432 checkCallingOrSelfUriPermission(uri, modeFlags), true, 1433 Binder.getCallingUid(), uri, message); 1434 } 1435 1436 public void enforceUriPermission( 1437 Uri uri, String readPermission, String writePermission, 1438 int pid, int uid, int modeFlags, String message) { 1439 enforceForUri(modeFlags, 1440 checkUriPermission( 1441 uri, readPermission, writePermission, pid, uid, 1442 modeFlags), 1443 false, 1444 uid, 1445 uri, 1446 message); 1447 } 1448 1449 @Override 1450 public Context createPackageContext(String packageName, int flags) 1451 throws PackageManager.NameNotFoundException { 1452 if (packageName.equals("system") || packageName.equals("android")) { 1453 return new ContextImpl(mMainThread.getSystemContext()); 1454 } 1455 1456 LoadedApk pi = 1457 mMainThread.getPackageInfo(packageName, flags); 1458 if (pi != null) { 1459 ContextImpl c = new ContextImpl(); 1460 c.mRestricted = (flags & CONTEXT_RESTRICTED) == CONTEXT_RESTRICTED; 1461 c.init(pi, null, mMainThread, mResources); 1462 if (c.mResources != null) { 1463 return c; 1464 } 1465 } 1466 1467 // Should be a better exception. 1468 throw new PackageManager.NameNotFoundException( 1469 "Application package " + packageName + " not found"); 1470 } 1471 1472 @Override 1473 public boolean isRestricted() { 1474 return mRestricted; 1475 } 1476 1477 private File getDataDirFile() { 1478 if (mPackageInfo != null) { 1479 return mPackageInfo.getDataDirFile(); 1480 } 1481 throw new RuntimeException("Not supported in system context"); 1482 } 1483 1484 @Override 1485 public File getDir(String name, int mode) { 1486 name = "app_" + name; 1487 File file = makeFilename(getDataDirFile(), name); 1488 if (!file.exists()) { 1489 file.mkdir(); 1490 setFilePermissionsFromMode(file.getPath(), mode, 1491 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH); 1492 } 1493 return file; 1494 } 1495 1496 static ContextImpl createSystemContext(ActivityThread mainThread) { 1497 ContextImpl context = new ContextImpl(); 1498 context.init(Resources.getSystem(), mainThread); 1499 return context; 1500 } 1501 1502 ContextImpl() { 1503 mOuterContext = this; 1504 } 1505 1506 /** 1507 * Create a new ApplicationContext from an existing one. The new one 1508 * works and operates the same as the one it is copying. 1509 * 1510 * @param context Existing application context. 1511 */ 1512 public ContextImpl(ContextImpl context) { 1513 mPackageInfo = context.mPackageInfo; 1514 mResources = context.mResources; 1515 mMainThread = context.mMainThread; 1516 mContentResolver = context.mContentResolver; 1517 mOuterContext = this; 1518 } 1519 1520 final void init(LoadedApk packageInfo, 1521 IBinder activityToken, ActivityThread mainThread) { 1522 init(packageInfo, activityToken, mainThread, null); 1523 } 1524 1525 final void init(LoadedApk packageInfo, 1526 IBinder activityToken, ActivityThread mainThread, 1527 Resources container) { 1528 mPackageInfo = packageInfo; 1529 mResources = mPackageInfo.getResources(mainThread); 1530 1531 if (mResources != null && container != null 1532 && container.getCompatibilityInfo().applicationScale != 1533 mResources.getCompatibilityInfo().applicationScale) { 1534 if (DEBUG) { 1535 Log.d(TAG, "loaded context has different scaling. Using container's" + 1536 " compatiblity info:" + container.getDisplayMetrics()); 1537 } 1538 mResources = mainThread.getTopLevelResources( 1539 mPackageInfo.getResDir(), container.getCompatibilityInfo().copy()); 1540 } 1541 mMainThread = mainThread; 1542 mContentResolver = new ApplicationContentResolver(this, mainThread); 1543 1544 setActivityToken(activityToken); 1545 } 1546 1547 final void init(Resources resources, ActivityThread mainThread) { 1548 mPackageInfo = null; 1549 mResources = resources; 1550 mMainThread = mainThread; 1551 mContentResolver = new ApplicationContentResolver(this, mainThread); 1552 } 1553 1554 final void scheduleFinalCleanup(String who, String what) { 1555 mMainThread.scheduleContextCleanup(this, who, what); 1556 } 1557 1558 final void performFinalCleanup(String who, String what) { 1559 //Log.i(TAG, "Cleanup up context: " + this); 1560 mPackageInfo.removeContextRegistrations(getOuterContext(), who, what); 1561 } 1562 1563 final Context getReceiverRestrictedContext() { 1564 if (mReceiverRestrictedContext != null) { 1565 return mReceiverRestrictedContext; 1566 } 1567 return mReceiverRestrictedContext = new ReceiverRestrictedContext(getOuterContext()); 1568 } 1569 1570 final void setActivityToken(IBinder token) { 1571 mActivityToken = token; 1572 } 1573 1574 final void setOuterContext(Context context) { 1575 mOuterContext = context; 1576 } 1577 1578 final Context getOuterContext() { 1579 return mOuterContext; 1580 } 1581 1582 final IBinder getActivityToken() { 1583 return mActivityToken; 1584 } 1585 1586 private static void setFilePermissionsFromMode(String name, int mode, 1587 int extraPermissions) { 1588 int perms = FileUtils.S_IRUSR|FileUtils.S_IWUSR 1589 |FileUtils.S_IRGRP|FileUtils.S_IWGRP 1590 |extraPermissions; 1591 if ((mode&MODE_WORLD_READABLE) != 0) { 1592 perms |= FileUtils.S_IROTH; 1593 } 1594 if ((mode&MODE_WORLD_WRITEABLE) != 0) { 1595 perms |= FileUtils.S_IWOTH; 1596 } 1597 if (DEBUG) { 1598 Log.i(TAG, "File " + name + ": mode=0x" + Integer.toHexString(mode) 1599 + ", perms=0x" + Integer.toHexString(perms)); 1600 } 1601 FileUtils.setPermissions(name, perms, -1, -1); 1602 } 1603 1604 private File validateFilePath(String name, boolean createDirectory) { 1605 File dir; 1606 File f; 1607 1608 if (name.charAt(0) == File.separatorChar) { 1609 String dirPath = name.substring(0, name.lastIndexOf(File.separatorChar)); 1610 dir = new File(dirPath); 1611 name = name.substring(name.lastIndexOf(File.separatorChar)); 1612 f = new File(dir, name); 1613 } else { 1614 dir = getDatabasesDir(); 1615 f = makeFilename(dir, name); 1616 } 1617 1618 if (createDirectory && !dir.isDirectory() && dir.mkdir()) { 1619 FileUtils.setPermissions(dir.getPath(), 1620 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1621 -1, -1); 1622 } 1623 1624 return f; 1625 } 1626 1627 private File makeFilename(File base, String name) { 1628 if (name.indexOf(File.separatorChar) < 0) { 1629 return new File(base, name); 1630 } 1631 throw new IllegalArgumentException( 1632 "File " + name + " contains a path separator"); 1633 } 1634 1635 // ---------------------------------------------------------------------- 1636 // ---------------------------------------------------------------------- 1637 // ---------------------------------------------------------------------- 1638 1639 private static final class ApplicationContentResolver extends ContentResolver { 1640 public ApplicationContentResolver(Context context, ActivityThread mainThread) { 1641 super(context); 1642 mMainThread = mainThread; 1643 } 1644 1645 @Override 1646 protected IContentProvider acquireProvider(Context context, String name) { 1647 return mMainThread.acquireProvider(context, name); 1648 } 1649 1650 @Override 1651 protected IContentProvider acquireExistingProvider(Context context, String name) { 1652 return mMainThread.acquireExistingProvider(context, name); 1653 } 1654 1655 @Override 1656 public boolean releaseProvider(IContentProvider provider) { 1657 return mMainThread.releaseProvider(provider); 1658 } 1659 1660 private final ActivityThread mMainThread; 1661 } 1662 1663 // ---------------------------------------------------------------------- 1664 // ---------------------------------------------------------------------- 1665 // ---------------------------------------------------------------------- 1666 1667 /*package*/ 1668 static final class ApplicationPackageManager extends PackageManager { 1669 @Override 1670 public PackageInfo getPackageInfo(String packageName, int flags) 1671 throws NameNotFoundException { 1672 try { 1673 PackageInfo pi = mPM.getPackageInfo(packageName, flags); 1674 if (pi != null) { 1675 return pi; 1676 } 1677 } catch (RemoteException e) { 1678 throw new RuntimeException("Package manager has died", e); 1679 } 1680 1681 throw new NameNotFoundException(packageName); 1682 } 1683 1684 @Override 1685 public String[] currentToCanonicalPackageNames(String[] names) { 1686 try { 1687 return mPM.currentToCanonicalPackageNames(names); 1688 } catch (RemoteException e) { 1689 throw new RuntimeException("Package manager has died", e); 1690 } 1691 } 1692 1693 @Override 1694 public String[] canonicalToCurrentPackageNames(String[] names) { 1695 try { 1696 return mPM.canonicalToCurrentPackageNames(names); 1697 } catch (RemoteException e) { 1698 throw new RuntimeException("Package manager has died", e); 1699 } 1700 } 1701 1702 @Override 1703 public Intent getLaunchIntentForPackage(String packageName) { 1704 // First see if the package has an INFO activity; the existence of 1705 // such an activity is implied to be the desired front-door for the 1706 // overall package (such as if it has multiple launcher entries). 1707 Intent intentToResolve = new Intent(Intent.ACTION_MAIN); 1708 intentToResolve.addCategory(Intent.CATEGORY_INFO); 1709 intentToResolve.setPackage(packageName); 1710 ResolveInfo resolveInfo = resolveActivity(intentToResolve, 0); 1711 1712 // Otherwise, try to find a main launcher activity. 1713 if (resolveInfo == null) { 1714 // reuse the intent instance 1715 intentToResolve.removeCategory(Intent.CATEGORY_INFO); 1716 intentToResolve.addCategory(Intent.CATEGORY_LAUNCHER); 1717 intentToResolve.setPackage(packageName); 1718 resolveInfo = resolveActivity(intentToResolve, 0); 1719 } 1720 if (resolveInfo == null) { 1721 return null; 1722 } 1723 Intent intent = new Intent(intentToResolve); 1724 intent.setClassName(resolveInfo.activityInfo.applicationInfo.packageName, 1725 resolveInfo.activityInfo.name); 1726 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 1727 return intent; 1728 } 1729 1730 @Override 1731 public int[] getPackageGids(String packageName) 1732 throws NameNotFoundException { 1733 try { 1734 int[] gids = mPM.getPackageGids(packageName); 1735 if (gids == null || gids.length > 0) { 1736 return gids; 1737 } 1738 } catch (RemoteException e) { 1739 throw new RuntimeException("Package manager has died", e); 1740 } 1741 1742 throw new NameNotFoundException(packageName); 1743 } 1744 1745 @Override 1746 public PermissionInfo getPermissionInfo(String name, int flags) 1747 throws NameNotFoundException { 1748 try { 1749 PermissionInfo pi = mPM.getPermissionInfo(name, flags); 1750 if (pi != null) { 1751 return pi; 1752 } 1753 } catch (RemoteException e) { 1754 throw new RuntimeException("Package manager has died", e); 1755 } 1756 1757 throw new NameNotFoundException(name); 1758 } 1759 1760 @Override 1761 public List<PermissionInfo> queryPermissionsByGroup(String group, int flags) 1762 throws NameNotFoundException { 1763 try { 1764 List<PermissionInfo> pi = mPM.queryPermissionsByGroup(group, flags); 1765 if (pi != null) { 1766 return pi; 1767 } 1768 } catch (RemoteException e) { 1769 throw new RuntimeException("Package manager has died", e); 1770 } 1771 1772 throw new NameNotFoundException(group); 1773 } 1774 1775 @Override 1776 public PermissionGroupInfo getPermissionGroupInfo(String name, 1777 int flags) throws NameNotFoundException { 1778 try { 1779 PermissionGroupInfo pgi = mPM.getPermissionGroupInfo(name, flags); 1780 if (pgi != null) { 1781 return pgi; 1782 } 1783 } catch (RemoteException e) { 1784 throw new RuntimeException("Package manager has died", e); 1785 } 1786 1787 throw new NameNotFoundException(name); 1788 } 1789 1790 @Override 1791 public List<PermissionGroupInfo> getAllPermissionGroups(int flags) { 1792 try { 1793 return mPM.getAllPermissionGroups(flags); 1794 } catch (RemoteException e) { 1795 throw new RuntimeException("Package manager has died", e); 1796 } 1797 } 1798 1799 @Override 1800 public ApplicationInfo getApplicationInfo(String packageName, int flags) 1801 throws NameNotFoundException { 1802 try { 1803 ApplicationInfo ai = mPM.getApplicationInfo(packageName, flags); 1804 if (ai != null) { 1805 return ai; 1806 } 1807 } catch (RemoteException e) { 1808 throw new RuntimeException("Package manager has died", e); 1809 } 1810 1811 throw new NameNotFoundException(packageName); 1812 } 1813 1814 @Override 1815 public ActivityInfo getActivityInfo(ComponentName className, int flags) 1816 throws NameNotFoundException { 1817 try { 1818 ActivityInfo ai = mPM.getActivityInfo(className, flags); 1819 if (ai != null) { 1820 return ai; 1821 } 1822 } catch (RemoteException e) { 1823 throw new RuntimeException("Package manager has died", e); 1824 } 1825 1826 throw new NameNotFoundException(className.toString()); 1827 } 1828 1829 @Override 1830 public ActivityInfo getReceiverInfo(ComponentName className, int flags) 1831 throws NameNotFoundException { 1832 try { 1833 ActivityInfo ai = mPM.getReceiverInfo(className, flags); 1834 if (ai != null) { 1835 return ai; 1836 } 1837 } catch (RemoteException e) { 1838 throw new RuntimeException("Package manager has died", e); 1839 } 1840 1841 throw new NameNotFoundException(className.toString()); 1842 } 1843 1844 @Override 1845 public ServiceInfo getServiceInfo(ComponentName className, int flags) 1846 throws NameNotFoundException { 1847 try { 1848 ServiceInfo si = mPM.getServiceInfo(className, flags); 1849 if (si != null) { 1850 return si; 1851 } 1852 } catch (RemoteException e) { 1853 throw new RuntimeException("Package manager has died", e); 1854 } 1855 1856 throw new NameNotFoundException(className.toString()); 1857 } 1858 1859 @Override 1860 public ProviderInfo getProviderInfo(ComponentName className, int flags) 1861 throws NameNotFoundException { 1862 try { 1863 ProviderInfo pi = mPM.getProviderInfo(className, flags); 1864 if (pi != null) { 1865 return pi; 1866 } 1867 } catch (RemoteException e) { 1868 throw new RuntimeException("Package manager has died", e); 1869 } 1870 1871 throw new NameNotFoundException(className.toString()); 1872 } 1873 1874 @Override 1875 public String[] getSystemSharedLibraryNames() { 1876 try { 1877 return mPM.getSystemSharedLibraryNames(); 1878 } catch (RemoteException e) { 1879 throw new RuntimeException("Package manager has died", e); 1880 } 1881 } 1882 1883 @Override 1884 public FeatureInfo[] getSystemAvailableFeatures() { 1885 try { 1886 return mPM.getSystemAvailableFeatures(); 1887 } catch (RemoteException e) { 1888 throw new RuntimeException("Package manager has died", e); 1889 } 1890 } 1891 1892 @Override 1893 public boolean hasSystemFeature(String name) { 1894 try { 1895 return mPM.hasSystemFeature(name); 1896 } catch (RemoteException e) { 1897 throw new RuntimeException("Package manager has died", e); 1898 } 1899 } 1900 1901 @Override 1902 public int checkPermission(String permName, String pkgName) { 1903 try { 1904 return mPM.checkPermission(permName, pkgName); 1905 } catch (RemoteException e) { 1906 throw new RuntimeException("Package manager has died", e); 1907 } 1908 } 1909 1910 @Override 1911 public boolean addPermission(PermissionInfo info) { 1912 try { 1913 return mPM.addPermission(info); 1914 } catch (RemoteException e) { 1915 throw new RuntimeException("Package manager has died", e); 1916 } 1917 } 1918 1919 @Override 1920 public boolean addPermissionAsync(PermissionInfo info) { 1921 try { 1922 return mPM.addPermissionAsync(info); 1923 } catch (RemoteException e) { 1924 throw new RuntimeException("Package manager has died", e); 1925 } 1926 } 1927 1928 @Override 1929 public void removePermission(String name) { 1930 try { 1931 mPM.removePermission(name); 1932 } catch (RemoteException e) { 1933 throw new RuntimeException("Package manager has died", e); 1934 } 1935 } 1936 1937 @Override 1938 public int checkSignatures(String pkg1, String pkg2) { 1939 try { 1940 return mPM.checkSignatures(pkg1, pkg2); 1941 } catch (RemoteException e) { 1942 throw new RuntimeException("Package manager has died", e); 1943 } 1944 } 1945 1946 @Override 1947 public int checkSignatures(int uid1, int uid2) { 1948 try { 1949 return mPM.checkUidSignatures(uid1, uid2); 1950 } catch (RemoteException e) { 1951 throw new RuntimeException("Package manager has died", e); 1952 } 1953 } 1954 1955 @Override 1956 public String[] getPackagesForUid(int uid) { 1957 try { 1958 return mPM.getPackagesForUid(uid); 1959 } catch (RemoteException e) { 1960 throw new RuntimeException("Package manager has died", e); 1961 } 1962 } 1963 1964 @Override 1965 public String getNameForUid(int uid) { 1966 try { 1967 return mPM.getNameForUid(uid); 1968 } catch (RemoteException e) { 1969 throw new RuntimeException("Package manager has died", e); 1970 } 1971 } 1972 1973 @Override 1974 public int getUidForSharedUser(String sharedUserName) 1975 throws NameNotFoundException { 1976 try { 1977 int uid = mPM.getUidForSharedUser(sharedUserName); 1978 if(uid != -1) { 1979 return uid; 1980 } 1981 } catch (RemoteException e) { 1982 throw new RuntimeException("Package manager has died", e); 1983 } 1984 throw new NameNotFoundException("No shared userid for user:"+sharedUserName); 1985 } 1986 1987 @Override 1988 public List<PackageInfo> getInstalledPackages(int flags) { 1989 try { 1990 return mPM.getInstalledPackages(flags); 1991 } catch (RemoteException e) { 1992 throw new RuntimeException("Package manager has died", e); 1993 } 1994 } 1995 1996 @Override 1997 public List<ApplicationInfo> getInstalledApplications(int flags) { 1998 try { 1999 return mPM.getInstalledApplications(flags); 2000 } catch (RemoteException e) { 2001 throw new RuntimeException("Package manager has died", e); 2002 } 2003 } 2004 2005 @Override 2006 public ResolveInfo resolveActivity(Intent intent, int flags) { 2007 try { 2008 return mPM.resolveIntent( 2009 intent, 2010 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 2011 flags); 2012 } catch (RemoteException e) { 2013 throw new RuntimeException("Package manager has died", e); 2014 } 2015 } 2016 2017 @Override 2018 public List<ResolveInfo> queryIntentActivities(Intent intent, 2019 int flags) { 2020 try { 2021 return mPM.queryIntentActivities( 2022 intent, 2023 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 2024 flags); 2025 } catch (RemoteException e) { 2026 throw new RuntimeException("Package manager has died", e); 2027 } 2028 } 2029 2030 @Override 2031 public List<ResolveInfo> queryIntentActivityOptions( 2032 ComponentName caller, Intent[] specifics, Intent intent, 2033 int flags) { 2034 final ContentResolver resolver = mContext.getContentResolver(); 2035 2036 String[] specificTypes = null; 2037 if (specifics != null) { 2038 final int N = specifics.length; 2039 for (int i=0; i<N; i++) { 2040 Intent sp = specifics[i]; 2041 if (sp != null) { 2042 String t = sp.resolveTypeIfNeeded(resolver); 2043 if (t != null) { 2044 if (specificTypes == null) { 2045 specificTypes = new String[N]; 2046 } 2047 specificTypes[i] = t; 2048 } 2049 } 2050 } 2051 } 2052 2053 try { 2054 return mPM.queryIntentActivityOptions(caller, specifics, 2055 specificTypes, intent, intent.resolveTypeIfNeeded(resolver), 2056 flags); 2057 } catch (RemoteException e) { 2058 throw new RuntimeException("Package manager has died", e); 2059 } 2060 } 2061 2062 @Override 2063 public List<ResolveInfo> queryBroadcastReceivers(Intent intent, int flags) { 2064 try { 2065 return mPM.queryIntentReceivers( 2066 intent, 2067 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 2068 flags); 2069 } catch (RemoteException e) { 2070 throw new RuntimeException("Package manager has died", e); 2071 } 2072 } 2073 2074 @Override 2075 public ResolveInfo resolveService(Intent intent, int flags) { 2076 try { 2077 return mPM.resolveService( 2078 intent, 2079 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 2080 flags); 2081 } catch (RemoteException e) { 2082 throw new RuntimeException("Package manager has died", e); 2083 } 2084 } 2085 2086 @Override 2087 public List<ResolveInfo> queryIntentServices(Intent intent, int flags) { 2088 try { 2089 return mPM.queryIntentServices( 2090 intent, 2091 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 2092 flags); 2093 } catch (RemoteException e) { 2094 throw new RuntimeException("Package manager has died", e); 2095 } 2096 } 2097 2098 @Override 2099 public ProviderInfo resolveContentProvider(String name, 2100 int flags) { 2101 try { 2102 return mPM.resolveContentProvider(name, flags); 2103 } catch (RemoteException e) { 2104 throw new RuntimeException("Package manager has died", e); 2105 } 2106 } 2107 2108 @Override 2109 public List<ProviderInfo> queryContentProviders(String processName, 2110 int uid, int flags) { 2111 try { 2112 return mPM.queryContentProviders(processName, uid, flags); 2113 } catch (RemoteException e) { 2114 throw new RuntimeException("Package manager has died", e); 2115 } 2116 } 2117 2118 @Override 2119 public InstrumentationInfo getInstrumentationInfo( 2120 ComponentName className, int flags) 2121 throws NameNotFoundException { 2122 try { 2123 InstrumentationInfo ii = mPM.getInstrumentationInfo( 2124 className, flags); 2125 if (ii != null) { 2126 return ii; 2127 } 2128 } catch (RemoteException e) { 2129 throw new RuntimeException("Package manager has died", e); 2130 } 2131 2132 throw new NameNotFoundException(className.toString()); 2133 } 2134 2135 @Override 2136 public List<InstrumentationInfo> queryInstrumentation( 2137 String targetPackage, int flags) { 2138 try { 2139 return mPM.queryInstrumentation(targetPackage, flags); 2140 } catch (RemoteException e) { 2141 throw new RuntimeException("Package manager has died", e); 2142 } 2143 } 2144 2145 @Override public Drawable getDrawable(String packageName, int resid, 2146 ApplicationInfo appInfo) { 2147 ResourceName name = new ResourceName(packageName, resid); 2148 Drawable dr = getCachedIcon(name); 2149 if (dr != null) { 2150 return dr; 2151 } 2152 if (appInfo == null) { 2153 try { 2154 appInfo = getApplicationInfo(packageName, 0); 2155 } catch (NameNotFoundException e) { 2156 return null; 2157 } 2158 } 2159 try { 2160 Resources r = getResourcesForApplication(appInfo); 2161 dr = r.getDrawable(resid); 2162 if (false) { 2163 RuntimeException e = new RuntimeException("here"); 2164 e.fillInStackTrace(); 2165 Log.w(TAG, "Getting drawable 0x" + Integer.toHexString(resid) 2166 + " from package " + packageName 2167 + ": app scale=" + r.getCompatibilityInfo().applicationScale 2168 + ", caller scale=" + mContext.getResources().getCompatibilityInfo().applicationScale, 2169 e); 2170 } 2171 if (DEBUG_ICONS) Log.v(TAG, "Getting drawable 0x" 2172 + Integer.toHexString(resid) + " from " + r 2173 + ": " + dr); 2174 putCachedIcon(name, dr); 2175 return dr; 2176 } catch (NameNotFoundException e) { 2177 Log.w("PackageManager", "Failure retrieving resources for" 2178 + appInfo.packageName); 2179 } catch (RuntimeException e) { 2180 // If an exception was thrown, fall through to return 2181 // default icon. 2182 Log.w("PackageManager", "Failure retrieving icon 0x" 2183 + Integer.toHexString(resid) + " in package " 2184 + packageName, e); 2185 } 2186 return null; 2187 } 2188 2189 @Override public Drawable getActivityIcon(ComponentName activityName) 2190 throws NameNotFoundException { 2191 return getActivityInfo(activityName, 0).loadIcon(this); 2192 } 2193 2194 @Override public Drawable getActivityIcon(Intent intent) 2195 throws NameNotFoundException { 2196 if (intent.getComponent() != null) { 2197 return getActivityIcon(intent.getComponent()); 2198 } 2199 2200 ResolveInfo info = resolveActivity( 2201 intent, PackageManager.MATCH_DEFAULT_ONLY); 2202 if (info != null) { 2203 return info.activityInfo.loadIcon(this); 2204 } 2205 2206 throw new NameNotFoundException(intent.toURI()); 2207 } 2208 2209 @Override public Drawable getDefaultActivityIcon() { 2210 return Resources.getSystem().getDrawable( 2211 com.android.internal.R.drawable.sym_def_app_icon); 2212 } 2213 2214 @Override public Drawable getApplicationIcon(ApplicationInfo info) { 2215 return info.loadIcon(this); 2216 } 2217 2218 @Override public Drawable getApplicationIcon(String packageName) 2219 throws NameNotFoundException { 2220 return getApplicationIcon(getApplicationInfo(packageName, 0)); 2221 } 2222 2223 @Override 2224 public Drawable getActivityLogo(ComponentName activityName) 2225 throws NameNotFoundException { 2226 return getActivityInfo(activityName, 0).loadLogo(this); 2227 } 2228 2229 @Override 2230 public Drawable getActivityLogo(Intent intent) 2231 throws NameNotFoundException { 2232 if (intent.getComponent() != null) { 2233 return getActivityLogo(intent.getComponent()); 2234 } 2235 2236 ResolveInfo info = resolveActivity( 2237 intent, PackageManager.MATCH_DEFAULT_ONLY); 2238 if (info != null) { 2239 return info.activityInfo.loadLogo(this); 2240 } 2241 2242 throw new NameNotFoundException(intent.toUri(0)); 2243 } 2244 2245 @Override 2246 public Drawable getApplicationLogo(ApplicationInfo info) { 2247 return info.loadLogo(this); 2248 } 2249 2250 @Override 2251 public Drawable getApplicationLogo(String packageName) 2252 throws NameNotFoundException { 2253 return getApplicationLogo(getApplicationInfo(packageName, 0)); 2254 } 2255 2256 @Override public Resources getResourcesForActivity( 2257 ComponentName activityName) throws NameNotFoundException { 2258 return getResourcesForApplication( 2259 getActivityInfo(activityName, 0).applicationInfo); 2260 } 2261 2262 @Override public Resources getResourcesForApplication( 2263 ApplicationInfo app) throws NameNotFoundException { 2264 if (app.packageName.equals("system")) { 2265 return mContext.mMainThread.getSystemContext().getResources(); 2266 } 2267 Resources r = mContext.mMainThread.getTopLevelResources( 2268 app.uid == Process.myUid() ? app.sourceDir 2269 : app.publicSourceDir, mContext.mPackageInfo); 2270 if (r != null) { 2271 return r; 2272 } 2273 throw new NameNotFoundException("Unable to open " + app.publicSourceDir); 2274 } 2275 2276 @Override public Resources getResourcesForApplication( 2277 String appPackageName) throws NameNotFoundException { 2278 return getResourcesForApplication( 2279 getApplicationInfo(appPackageName, 0)); 2280 } 2281 2282 int mCachedSafeMode = -1; 2283 @Override public boolean isSafeMode() { 2284 try { 2285 if (mCachedSafeMode < 0) { 2286 mCachedSafeMode = mPM.isSafeMode() ? 1 : 0; 2287 } 2288 return mCachedSafeMode != 0; 2289 } catch (RemoteException e) { 2290 throw new RuntimeException("Package manager has died", e); 2291 } 2292 } 2293 2294 static void configurationChanged() { 2295 synchronized (sSync) { 2296 sIconCache.clear(); 2297 sStringCache.clear(); 2298 } 2299 } 2300 2301 ApplicationPackageManager(ContextImpl context, 2302 IPackageManager pm) { 2303 mContext = context; 2304 mPM = pm; 2305 } 2306 2307 private Drawable getCachedIcon(ResourceName name) { 2308 synchronized (sSync) { 2309 WeakReference<Drawable> wr = sIconCache.get(name); 2310 if (DEBUG_ICONS) Log.v(TAG, "Get cached weak drawable ref for " 2311 + name + ": " + wr); 2312 if (wr != null) { // we have the activity 2313 Drawable dr = wr.get(); 2314 if (dr != null) { 2315 if (DEBUG_ICONS) Log.v(TAG, "Get cached drawable for " 2316 + name + ": " + dr); 2317 return dr; 2318 } 2319 // our entry has been purged 2320 sIconCache.remove(name); 2321 } 2322 } 2323 return null; 2324 } 2325 2326 private void putCachedIcon(ResourceName name, Drawable dr) { 2327 synchronized (sSync) { 2328 sIconCache.put(name, new WeakReference<Drawable>(dr)); 2329 if (DEBUG_ICONS) Log.v(TAG, "Added cached drawable for " 2330 + name + ": " + dr); 2331 } 2332 } 2333 2334 static final void handlePackageBroadcast(int cmd, String[] pkgList, 2335 boolean hasPkgInfo) { 2336 boolean immediateGc = false; 2337 if (cmd == IApplicationThread.EXTERNAL_STORAGE_UNAVAILABLE) { 2338 immediateGc = true; 2339 } 2340 if (pkgList != null && (pkgList.length > 0)) { 2341 boolean needCleanup = false; 2342 for (String ssp : pkgList) { 2343 synchronized (sSync) { 2344 if (sIconCache.size() > 0) { 2345 Iterator<ResourceName> it = sIconCache.keySet().iterator(); 2346 while (it.hasNext()) { 2347 ResourceName nm = it.next(); 2348 if (nm.packageName.equals(ssp)) { 2349 //Log.i(TAG, "Removing cached drawable for " + nm); 2350 it.remove(); 2351 needCleanup = true; 2352 } 2353 } 2354 } 2355 if (sStringCache.size() > 0) { 2356 Iterator<ResourceName> it = sStringCache.keySet().iterator(); 2357 while (it.hasNext()) { 2358 ResourceName nm = it.next(); 2359 if (nm.packageName.equals(ssp)) { 2360 //Log.i(TAG, "Removing cached string for " + nm); 2361 it.remove(); 2362 needCleanup = true; 2363 } 2364 } 2365 } 2366 } 2367 } 2368 if (needCleanup || hasPkgInfo) { 2369 if (immediateGc) { 2370 // Schedule an immediate gc. 2371 Runtime.getRuntime().gc(); 2372 } else { 2373 ActivityThread.currentActivityThread().scheduleGcIdler(); 2374 } 2375 } 2376 } 2377 } 2378 2379 private static final class ResourceName { 2380 final String packageName; 2381 final int iconId; 2382 2383 ResourceName(String _packageName, int _iconId) { 2384 packageName = _packageName; 2385 iconId = _iconId; 2386 } 2387 2388 ResourceName(ApplicationInfo aInfo, int _iconId) { 2389 this(aInfo.packageName, _iconId); 2390 } 2391 2392 ResourceName(ComponentInfo cInfo, int _iconId) { 2393 this(cInfo.applicationInfo.packageName, _iconId); 2394 } 2395 2396 ResourceName(ResolveInfo rInfo, int _iconId) { 2397 this(rInfo.activityInfo.applicationInfo.packageName, _iconId); 2398 } 2399 2400 @Override 2401 public boolean equals(Object o) { 2402 if (this == o) return true; 2403 if (o == null || getClass() != o.getClass()) return false; 2404 2405 ResourceName that = (ResourceName) o; 2406 2407 if (iconId != that.iconId) return false; 2408 return !(packageName != null ? 2409 !packageName.equals(that.packageName) : that.packageName != null); 2410 2411 } 2412 2413 @Override 2414 public int hashCode() { 2415 int result; 2416 result = packageName.hashCode(); 2417 result = 31 * result + iconId; 2418 return result; 2419 } 2420 2421 @Override 2422 public String toString() { 2423 return "{ResourceName " + packageName + " / " + iconId + "}"; 2424 } 2425 } 2426 2427 private CharSequence getCachedString(ResourceName name) { 2428 synchronized (sSync) { 2429 WeakReference<CharSequence> wr = sStringCache.get(name); 2430 if (wr != null) { // we have the activity 2431 CharSequence cs = wr.get(); 2432 if (cs != null) { 2433 return cs; 2434 } 2435 // our entry has been purged 2436 sStringCache.remove(name); 2437 } 2438 } 2439 return null; 2440 } 2441 2442 private void putCachedString(ResourceName name, CharSequence cs) { 2443 synchronized (sSync) { 2444 sStringCache.put(name, new WeakReference<CharSequence>(cs)); 2445 } 2446 } 2447 2448 @Override 2449 public CharSequence getText(String packageName, int resid, 2450 ApplicationInfo appInfo) { 2451 ResourceName name = new ResourceName(packageName, resid); 2452 CharSequence text = getCachedString(name); 2453 if (text != null) { 2454 return text; 2455 } 2456 if (appInfo == null) { 2457 try { 2458 appInfo = getApplicationInfo(packageName, 0); 2459 } catch (NameNotFoundException e) { 2460 return null; 2461 } 2462 } 2463 try { 2464 Resources r = getResourcesForApplication(appInfo); 2465 text = r.getText(resid); 2466 putCachedString(name, text); 2467 return text; 2468 } catch (NameNotFoundException e) { 2469 Log.w("PackageManager", "Failure retrieving resources for" 2470 + appInfo.packageName); 2471 } catch (RuntimeException e) { 2472 // If an exception was thrown, fall through to return 2473 // default icon. 2474 Log.w("PackageManager", "Failure retrieving text 0x" 2475 + Integer.toHexString(resid) + " in package " 2476 + packageName, e); 2477 } 2478 return null; 2479 } 2480 2481 @Override 2482 public XmlResourceParser getXml(String packageName, int resid, 2483 ApplicationInfo appInfo) { 2484 if (appInfo == null) { 2485 try { 2486 appInfo = getApplicationInfo(packageName, 0); 2487 } catch (NameNotFoundException e) { 2488 return null; 2489 } 2490 } 2491 try { 2492 Resources r = getResourcesForApplication(appInfo); 2493 return r.getXml(resid); 2494 } catch (RuntimeException e) { 2495 // If an exception was thrown, fall through to return 2496 // default icon. 2497 Log.w("PackageManager", "Failure retrieving xml 0x" 2498 + Integer.toHexString(resid) + " in package " 2499 + packageName, e); 2500 } catch (NameNotFoundException e) { 2501 Log.w("PackageManager", "Failure retrieving resources for" 2502 + appInfo.packageName); 2503 } 2504 return null; 2505 } 2506 2507 @Override 2508 public CharSequence getApplicationLabel(ApplicationInfo info) { 2509 return info.loadLabel(this); 2510 } 2511 2512 @Override 2513 public void installPackage(Uri packageURI, IPackageInstallObserver observer, int flags, 2514 String installerPackageName) { 2515 try { 2516 mPM.installPackage(packageURI, observer, flags, installerPackageName); 2517 } catch (RemoteException e) { 2518 // Should never happen! 2519 } 2520 } 2521 2522 @Override 2523 public void movePackage(String packageName, IPackageMoveObserver observer, int flags) { 2524 try { 2525 mPM.movePackage(packageName, observer, flags); 2526 } catch (RemoteException e) { 2527 // Should never happen! 2528 } 2529 } 2530 2531 @Override 2532 public String getInstallerPackageName(String packageName) { 2533 try { 2534 return mPM.getInstallerPackageName(packageName); 2535 } catch (RemoteException e) { 2536 // Should never happen! 2537 } 2538 return null; 2539 } 2540 2541 @Override 2542 public void deletePackage(String packageName, IPackageDeleteObserver observer, int flags) { 2543 try { 2544 mPM.deletePackage(packageName, observer, flags); 2545 } catch (RemoteException e) { 2546 // Should never happen! 2547 } 2548 } 2549 @Override 2550 public void clearApplicationUserData(String packageName, 2551 IPackageDataObserver observer) { 2552 try { 2553 mPM.clearApplicationUserData(packageName, observer); 2554 } catch (RemoteException e) { 2555 // Should never happen! 2556 } 2557 } 2558 @Override 2559 public void deleteApplicationCacheFiles(String packageName, 2560 IPackageDataObserver observer) { 2561 try { 2562 mPM.deleteApplicationCacheFiles(packageName, observer); 2563 } catch (RemoteException e) { 2564 // Should never happen! 2565 } 2566 } 2567 @Override 2568 public void freeStorageAndNotify(long idealStorageSize, IPackageDataObserver observer) { 2569 try { 2570 mPM.freeStorageAndNotify(idealStorageSize, observer); 2571 } catch (RemoteException e) { 2572 // Should never happen! 2573 } 2574 } 2575 2576 @Override 2577 public void freeStorage(long freeStorageSize, IntentSender pi) { 2578 try { 2579 mPM.freeStorage(freeStorageSize, pi); 2580 } catch (RemoteException e) { 2581 // Should never happen! 2582 } 2583 } 2584 2585 @Override 2586 public void getPackageSizeInfo(String packageName, 2587 IPackageStatsObserver observer) { 2588 try { 2589 mPM.getPackageSizeInfo(packageName, observer); 2590 } catch (RemoteException e) { 2591 // Should never happen! 2592 } 2593 } 2594 @Override 2595 public void addPackageToPreferred(String packageName) { 2596 try { 2597 mPM.addPackageToPreferred(packageName); 2598 } catch (RemoteException e) { 2599 // Should never happen! 2600 } 2601 } 2602 2603 @Override 2604 public void removePackageFromPreferred(String packageName) { 2605 try { 2606 mPM.removePackageFromPreferred(packageName); 2607 } catch (RemoteException e) { 2608 // Should never happen! 2609 } 2610 } 2611 2612 @Override 2613 public List<PackageInfo> getPreferredPackages(int flags) { 2614 try { 2615 return mPM.getPreferredPackages(flags); 2616 } catch (RemoteException e) { 2617 // Should never happen! 2618 } 2619 return new ArrayList<PackageInfo>(); 2620 } 2621 2622 @Override 2623 public void addPreferredActivity(IntentFilter filter, 2624 int match, ComponentName[] set, ComponentName activity) { 2625 try { 2626 mPM.addPreferredActivity(filter, match, set, activity); 2627 } catch (RemoteException e) { 2628 // Should never happen! 2629 } 2630 } 2631 2632 @Override 2633 public void replacePreferredActivity(IntentFilter filter, 2634 int match, ComponentName[] set, ComponentName activity) { 2635 try { 2636 mPM.replacePreferredActivity(filter, match, set, activity); 2637 } catch (RemoteException e) { 2638 // Should never happen! 2639 } 2640 } 2641 2642 @Override 2643 public void clearPackagePreferredActivities(String packageName) { 2644 try { 2645 mPM.clearPackagePreferredActivities(packageName); 2646 } catch (RemoteException e) { 2647 // Should never happen! 2648 } 2649 } 2650 2651 @Override 2652 public int getPreferredActivities(List<IntentFilter> outFilters, 2653 List<ComponentName> outActivities, String packageName) { 2654 try { 2655 return mPM.getPreferredActivities(outFilters, outActivities, packageName); 2656 } catch (RemoteException e) { 2657 // Should never happen! 2658 } 2659 return 0; 2660 } 2661 2662 @Override 2663 public void setComponentEnabledSetting(ComponentName componentName, 2664 int newState, int flags) { 2665 try { 2666 mPM.setComponentEnabledSetting(componentName, newState, flags); 2667 } catch (RemoteException e) { 2668 // Should never happen! 2669 } 2670 } 2671 2672 @Override 2673 public int getComponentEnabledSetting(ComponentName componentName) { 2674 try { 2675 return mPM.getComponentEnabledSetting(componentName); 2676 } catch (RemoteException e) { 2677 // Should never happen! 2678 } 2679 return PackageManager.COMPONENT_ENABLED_STATE_DEFAULT; 2680 } 2681 2682 @Override 2683 public void setApplicationEnabledSetting(String packageName, 2684 int newState, int flags) { 2685 try { 2686 mPM.setApplicationEnabledSetting(packageName, newState, flags); 2687 } catch (RemoteException e) { 2688 // Should never happen! 2689 } 2690 } 2691 2692 @Override 2693 public int getApplicationEnabledSetting(String packageName) { 2694 try { 2695 return mPM.getApplicationEnabledSetting(packageName); 2696 } catch (RemoteException e) { 2697 // Should never happen! 2698 } 2699 return PackageManager.COMPONENT_ENABLED_STATE_DEFAULT; 2700 } 2701 2702 @Override 2703 public void setPackageObbPath(String packageName, String path) { 2704 try { 2705 mPM.setPackageObbPath(packageName, path); 2706 } catch (RemoteException e) { 2707 // Should never happen! 2708 } 2709 } 2710 2711 private final ContextImpl mContext; 2712 private final IPackageManager mPM; 2713 2714 private static final Object sSync = new Object(); 2715 private static HashMap<ResourceName, WeakReference<Drawable> > sIconCache 2716 = new HashMap<ResourceName, WeakReference<Drawable> >(); 2717 private static HashMap<ResourceName, WeakReference<CharSequence> > sStringCache 2718 = new HashMap<ResourceName, WeakReference<CharSequence> >(); 2719 } 2720 2721 // ---------------------------------------------------------------------- 2722 // ---------------------------------------------------------------------- 2723 // ---------------------------------------------------------------------- 2724 2725 private static final class SharedPreferencesImpl implements SharedPreferences { 2726 2727 // Lock ordering rules: 2728 // - acquire SharedPreferencesImpl.this before EditorImpl.this 2729 // - acquire mWritingToDiskLock before EditorImpl.this 2730 2731 private final File mFile; 2732 private final File mBackupFile; 2733 private final int mMode; 2734 2735 private Map<String, Object> mMap; // guarded by 'this' 2736 private long mTimestamp; // guarded by 'this' 2737 private int mDiskWritesInFlight = 0; // guarded by 'this' 2738 private boolean mLoaded = false; // guarded by 'this' 2739 2740 private final Object mWritingToDiskLock = new Object(); 2741 private static final Object mContent = new Object(); 2742 private WeakHashMap<OnSharedPreferenceChangeListener, Object> mListeners; 2743 2744 SharedPreferencesImpl( 2745 File file, int mode, Map initialContents) { 2746 mFile = file; 2747 mBackupFile = makeBackupFile(file); 2748 mMode = mode; 2749 mLoaded = initialContents != null; 2750 mMap = initialContents != null ? initialContents : new HashMap<String, Object>(); 2751 FileStatus stat = new FileStatus(); 2752 if (FileUtils.getFileStatus(file.getPath(), stat)) { 2753 mTimestamp = stat.mtime; 2754 } 2755 mListeners = new WeakHashMap<OnSharedPreferenceChangeListener, Object>(); 2756 } 2757 2758 // Has this SharedPreferences ever had values assigned to it? 2759 boolean isLoaded() { 2760 synchronized (this) { 2761 return mLoaded; 2762 } 2763 } 2764 2765 // Has the file changed out from under us? i.e. writes that 2766 // we didn't instigate. 2767 public boolean hasFileChangedUnexpectedly() { 2768 synchronized (this) { 2769 if (mDiskWritesInFlight > 0) { 2770 // If we know we caused it, it's not unexpected. 2771 Log.d(TAG, "disk write in flight, not unexpected."); 2772 return false; 2773 } 2774 } 2775 FileStatus stat = new FileStatus(); 2776 if (!FileUtils.getFileStatus(mFile.getPath(), stat)) { 2777 return true; 2778 } 2779 synchronized (this) { 2780 return mTimestamp != stat.mtime; 2781 } 2782 } 2783 2784 public void replace(Map newContents) { 2785 synchronized (this) { 2786 mLoaded = true; 2787 if (newContents != null) { 2788 mMap = newContents; 2789 } 2790 } 2791 } 2792 2793 public void registerOnSharedPreferenceChangeListener(OnSharedPreferenceChangeListener listener) { 2794 synchronized(this) { 2795 mListeners.put(listener, mContent); 2796 } 2797 } 2798 2799 public void unregisterOnSharedPreferenceChangeListener(OnSharedPreferenceChangeListener listener) { 2800 synchronized(this) { 2801 mListeners.remove(listener); 2802 } 2803 } 2804 2805 public Map<String, ?> getAll() { 2806 synchronized(this) { 2807 //noinspection unchecked 2808 return new HashMap<String, Object>(mMap); 2809 } 2810 } 2811 2812 public String getString(String key, String defValue) { 2813 synchronized (this) { 2814 String v = (String)mMap.get(key); 2815 return v != null ? v : defValue; 2816 } 2817 } 2818 2819 public Set<String> getStringSet(String key, Set<String> defValues) { 2820 synchronized (this) { 2821 Set<String> v = (Set<String>) mMap.get(key); 2822 return v != null ? v : defValues; 2823 } 2824 } 2825 2826 public int getInt(String key, int defValue) { 2827 synchronized (this) { 2828 Integer v = (Integer)mMap.get(key); 2829 return v != null ? v : defValue; 2830 } 2831 } 2832 public long getLong(String key, long defValue) { 2833 synchronized (this) { 2834 Long v = (Long)mMap.get(key); 2835 return v != null ? v : defValue; 2836 } 2837 } 2838 public float getFloat(String key, float defValue) { 2839 synchronized (this) { 2840 Float v = (Float)mMap.get(key); 2841 return v != null ? v : defValue; 2842 } 2843 } 2844 public boolean getBoolean(String key, boolean defValue) { 2845 synchronized (this) { 2846 Boolean v = (Boolean)mMap.get(key); 2847 return v != null ? v : defValue; 2848 } 2849 } 2850 2851 public boolean contains(String key) { 2852 synchronized (this) { 2853 return mMap.containsKey(key); 2854 } 2855 } 2856 2857 public Editor edit() { 2858 return new EditorImpl(); 2859 } 2860 2861 // Return value from EditorImpl#commitToMemory() 2862 private static class MemoryCommitResult { 2863 public boolean changesMade; // any keys different? 2864 public List<String> keysModified; // may be null 2865 public Set<OnSharedPreferenceChangeListener> listeners; // may be null 2866 public Map<?, ?> mapToWriteToDisk; 2867 public final CountDownLatch writtenToDiskLatch = new CountDownLatch(1); 2868 public volatile boolean writeToDiskResult = false; 2869 2870 public void setDiskWriteResult(boolean result) { 2871 writeToDiskResult = result; 2872 writtenToDiskLatch.countDown(); 2873 } 2874 } 2875 2876 public final class EditorImpl implements Editor { 2877 private final Map<String, Object> mModified = Maps.newHashMap(); 2878 private boolean mClear = false; 2879 2880 public Editor putString(String key, String value) { 2881 synchronized (this) { 2882 mModified.put(key, value); 2883 return this; 2884 } 2885 } 2886 public Editor putStringSet(String key, Set<String> values) { 2887 synchronized (this) { 2888 mModified.put(key, values); 2889 return this; 2890 } 2891 } 2892 public Editor putInt(String key, int value) { 2893 synchronized (this) { 2894 mModified.put(key, value); 2895 return this; 2896 } 2897 } 2898 public Editor putLong(String key, long value) { 2899 synchronized (this) { 2900 mModified.put(key, value); 2901 return this; 2902 } 2903 } 2904 public Editor putFloat(String key, float value) { 2905 synchronized (this) { 2906 mModified.put(key, value); 2907 return this; 2908 } 2909 } 2910 public Editor putBoolean(String key, boolean value) { 2911 synchronized (this) { 2912 mModified.put(key, value); 2913 return this; 2914 } 2915 } 2916 2917 public Editor remove(String key) { 2918 synchronized (this) { 2919 mModified.put(key, this); 2920 return this; 2921 } 2922 } 2923 2924 public Editor clear() { 2925 synchronized (this) { 2926 mClear = true; 2927 return this; 2928 } 2929 } 2930 2931 public void apply() { 2932 final MemoryCommitResult mcr = commitToMemory(); 2933 final Runnable awaitCommit = new Runnable() { 2934 public void run() { 2935 try { 2936 mcr.writtenToDiskLatch.await(); 2937 } catch (InterruptedException ignored) { 2938 } 2939 } 2940 }; 2941 2942 QueuedWork.add(awaitCommit); 2943 2944 Runnable postWriteRunnable = new Runnable() { 2945 public void run() { 2946 awaitCommit.run(); 2947 QueuedWork.remove(awaitCommit); 2948 } 2949 }; 2950 2951 SharedPreferencesImpl.this.enqueueDiskWrite(mcr, postWriteRunnable); 2952 2953 // Okay to notify the listeners before it's hit disk 2954 // because the listeners should always get the same 2955 // SharedPreferences instance back, which has the 2956 // changes reflected in memory. 2957 notifyListeners(mcr); 2958 } 2959 2960 // Returns true if any changes were made 2961 private MemoryCommitResult commitToMemory() { 2962 MemoryCommitResult mcr = new MemoryCommitResult(); 2963 synchronized (SharedPreferencesImpl.this) { 2964 // We optimistically don't make a deep copy until 2965 // a memory commit comes in when we're already 2966 // writing to disk. 2967 if (mDiskWritesInFlight > 0) { 2968 // We can't modify our mMap as a currently 2969 // in-flight write owns it. Clone it before 2970 // modifying it. 2971 // noinspection unchecked 2972 mMap = new HashMap<String, Object>(mMap); 2973 } 2974 mcr.mapToWriteToDisk = mMap; 2975 mDiskWritesInFlight++; 2976 2977 boolean hasListeners = mListeners.size() > 0; 2978 if (hasListeners) { 2979 mcr.keysModified = new ArrayList<String>(); 2980 mcr.listeners = 2981 new HashSet<OnSharedPreferenceChangeListener>(mListeners.keySet()); 2982 } 2983 2984 synchronized (this) { 2985 if (mClear) { 2986 if (!mMap.isEmpty()) { 2987 mcr.changesMade = true; 2988 mMap.clear(); 2989 } 2990 mClear = false; 2991 } 2992 2993 for (Entry<String, Object> e : mModified.entrySet()) { 2994 String k = e.getKey(); 2995 Object v = e.getValue(); 2996 if (v == this) { // magic value for a removal mutation 2997 if (!mMap.containsKey(k)) { 2998 continue; 2999 } 3000 mMap.remove(k); 3001 } else { 3002 boolean isSame = false; 3003 if (mMap.containsKey(k)) { 3004 Object existingValue = mMap.get(k); 3005 if (existingValue != null && existingValue.equals(v)) { 3006 continue; 3007 } 3008 } 3009 mMap.put(k, v); 3010 } 3011 3012 mcr.changesMade = true; 3013 if (hasListeners) { 3014 mcr.keysModified.add(k); 3015 } 3016 } 3017 3018 mModified.clear(); 3019 } 3020 } 3021 return mcr; 3022 } 3023 3024 public boolean commit() { 3025 MemoryCommitResult mcr = commitToMemory(); 3026 SharedPreferencesImpl.this.enqueueDiskWrite( 3027 mcr, null /* sync write on this thread okay */); 3028 try { 3029 mcr.writtenToDiskLatch.await(); 3030 } catch (InterruptedException e) { 3031 return false; 3032 } 3033 notifyListeners(mcr); 3034 return mcr.writeToDiskResult; 3035 } 3036 3037 private void notifyListeners(final MemoryCommitResult mcr) { 3038 if (mcr.listeners == null || mcr.keysModified == null || 3039 mcr.keysModified.size() == 0) { 3040 return; 3041 } 3042 if (Looper.myLooper() == Looper.getMainLooper()) { 3043 for (int i = mcr.keysModified.size() - 1; i >= 0; i--) { 3044 final String key = mcr.keysModified.get(i); 3045 for (OnSharedPreferenceChangeListener listener : mcr.listeners) { 3046 if (listener != null) { 3047 listener.onSharedPreferenceChanged(SharedPreferencesImpl.this, key); 3048 } 3049 } 3050 } 3051 } else { 3052 // Run this function on the main thread. 3053 ActivityThread.sMainThreadHandler.post(new Runnable() { 3054 public void run() { 3055 notifyListeners(mcr); 3056 } 3057 }); 3058 } 3059 } 3060 } 3061 3062 /** 3063 * Enqueue an already-committed-to-memory result to be written 3064 * to disk. 3065 * 3066 * They will be written to disk one-at-a-time in the order 3067 * that they're enqueued. 3068 * 3069 * @param postWriteRunnable if non-null, we're being called 3070 * from apply() and this is the runnable to run after 3071 * the write proceeds. if null (from a regular commit()), 3072 * then we're allowed to do this disk write on the main 3073 * thread (which in addition to reducing allocations and 3074 * creating a background thread, this has the advantage that 3075 * we catch them in userdebug StrictMode reports to convert 3076 * them where possible to apply() ...) 3077 */ 3078 private void enqueueDiskWrite(final MemoryCommitResult mcr, 3079 final Runnable postWriteRunnable) { 3080 final Runnable writeToDiskRunnable = new Runnable() { 3081 public void run() { 3082 synchronized (mWritingToDiskLock) { 3083 writeToFile(mcr); 3084 } 3085 synchronized (SharedPreferencesImpl.this) { 3086 mDiskWritesInFlight--; 3087 } 3088 if (postWriteRunnable != null) { 3089 postWriteRunnable.run(); 3090 } 3091 } 3092 }; 3093 3094 final boolean isFromSyncCommit = (postWriteRunnable == null); 3095 3096 // Typical #commit() path with fewer allocations, doing a write on 3097 // the current thread. 3098 if (isFromSyncCommit) { 3099 boolean wasEmpty = false; 3100 synchronized (SharedPreferencesImpl.this) { 3101 wasEmpty = mDiskWritesInFlight == 1; 3102 } 3103 if (wasEmpty) { 3104 writeToDiskRunnable.run(); 3105 return; 3106 } 3107 } 3108 3109 QueuedWork.singleThreadExecutor().execute(writeToDiskRunnable); 3110 } 3111 3112 private static FileOutputStream createFileOutputStream(File file) { 3113 FileOutputStream str = null; 3114 try { 3115 str = new FileOutputStream(file); 3116 } catch (FileNotFoundException e) { 3117 File parent = file.getParentFile(); 3118 if (!parent.mkdir()) { 3119 Log.e(TAG, "Couldn't create directory for SharedPreferences file " + file); 3120 return null; 3121 } 3122 FileUtils.setPermissions( 3123 parent.getPath(), 3124 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 3125 -1, -1); 3126 try { 3127 str = new FileOutputStream(file); 3128 } catch (FileNotFoundException e2) { 3129 Log.e(TAG, "Couldn't create SharedPreferences file " + file, e2); 3130 } 3131 } 3132 return str; 3133 } 3134 3135 // Note: must hold mWritingToDiskLock 3136 private void writeToFile(MemoryCommitResult mcr) { 3137 // Rename the current file so it may be used as a backup during the next read 3138 if (mFile.exists()) { 3139 if (!mcr.changesMade) { 3140 // If the file already exists, but no changes were 3141 // made to the underlying map, it's wasteful to 3142 // re-write the file. Return as if we wrote it 3143 // out. 3144 mcr.setDiskWriteResult(true); 3145 return; 3146 } 3147 if (!mBackupFile.exists()) { 3148 if (!mFile.renameTo(mBackupFile)) { 3149 Log.e(TAG, "Couldn't rename file " + mFile 3150 + " to backup file " + mBackupFile); 3151 mcr.setDiskWriteResult(false); 3152 return; 3153 } 3154 } else { 3155 mFile.delete(); 3156 } 3157 } 3158 3159 // Attempt to write the file, delete the backup and return true as atomically as 3160 // possible. If any exception occurs, delete the new file; next time we will restore 3161 // from the backup. 3162 try { 3163 FileOutputStream str = createFileOutputStream(mFile); 3164 if (str == null) { 3165 mcr.setDiskWriteResult(false); 3166 return; 3167 } 3168 XmlUtils.writeMapXml(mcr.mapToWriteToDisk, str); 3169 str.close(); 3170 setFilePermissionsFromMode(mFile.getPath(), mMode, 0); 3171 FileStatus stat = new FileStatus(); 3172 if (FileUtils.getFileStatus(mFile.getPath(), stat)) { 3173 synchronized (this) { 3174 mTimestamp = stat.mtime; 3175 } 3176 } 3177 // Writing was successful, delete the backup file if there is one. 3178 mBackupFile.delete(); 3179 mcr.setDiskWriteResult(true); 3180 return; 3181 } catch (XmlPullParserException e) { 3182 Log.w(TAG, "writeToFile: Got exception:", e); 3183 } catch (IOException e) { 3184 Log.w(TAG, "writeToFile: Got exception:", e); 3185 } 3186 // Clean up an unsuccessfully written file 3187 if (mFile.exists()) { 3188 if (!mFile.delete()) { 3189 Log.e(TAG, "Couldn't clean up partially-written file " + mFile); 3190 } 3191 } 3192 mcr.setDiskWriteResult(false); 3193 } 3194 } 3195} 3196