PackageInstallerService.java revision f174c6e6de6ba863179401aa7b3d55d91ceed707
1/* 2 * Copyright (C) 2014 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 com.android.server.pm; 18 19import static android.content.pm.PackageManager.INSTALL_ALL_USERS; 20import static android.content.pm.PackageManager.INSTALL_FROM_ADB; 21import static android.content.pm.PackageManager.INSTALL_REPLACE_EXISTING; 22import static com.android.internal.util.XmlUtils.readBitmapAttribute; 23import static com.android.internal.util.XmlUtils.readBooleanAttribute; 24import static com.android.internal.util.XmlUtils.readIntAttribute; 25import static com.android.internal.util.XmlUtils.readLongAttribute; 26import static com.android.internal.util.XmlUtils.readStringAttribute; 27import static com.android.internal.util.XmlUtils.readUriAttribute; 28import static com.android.internal.util.XmlUtils.writeBitmapAttribute; 29import static com.android.internal.util.XmlUtils.writeBooleanAttribute; 30import static com.android.internal.util.XmlUtils.writeIntAttribute; 31import static com.android.internal.util.XmlUtils.writeLongAttribute; 32import static com.android.internal.util.XmlUtils.writeStringAttribute; 33import static com.android.internal.util.XmlUtils.writeUriAttribute; 34import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 35import static org.xmlpull.v1.XmlPullParser.START_TAG; 36 37import android.app.ActivityManager; 38import android.app.AppOpsManager; 39import android.content.Context; 40import android.content.pm.IPackageDeleteObserver; 41import android.content.pm.IPackageInstaller; 42import android.content.pm.IPackageInstallerCallback; 43import android.content.pm.IPackageInstallerSession; 44import android.content.pm.InstallSessionInfo; 45import android.content.pm.InstallSessionParams; 46import android.content.pm.PackageManager; 47import android.graphics.Bitmap; 48import android.os.Binder; 49import android.os.Environment; 50import android.os.FileUtils; 51import android.os.Handler; 52import android.os.HandlerThread; 53import android.os.Looper; 54import android.os.Message; 55import android.os.Process; 56import android.os.RemoteCallbackList; 57import android.os.RemoteException; 58import android.os.SELinux; 59import android.os.UserHandle; 60import android.os.UserManager; 61import android.system.ErrnoException; 62import android.system.Os; 63import android.text.format.DateUtils; 64import android.util.ArraySet; 65import android.util.AtomicFile; 66import android.util.ExceptionUtils; 67import android.util.Log; 68import android.util.Slog; 69import android.util.SparseArray; 70import android.util.Xml; 71 72import com.android.internal.annotations.GuardedBy; 73import com.android.internal.util.FastXmlSerializer; 74import com.android.internal.util.IndentingPrintWriter; 75import com.android.server.IoThread; 76import com.android.server.pm.PackageInstallerSession.Snapshot; 77import com.google.android.collect.Sets; 78 79import libcore.io.IoUtils; 80 81import org.xmlpull.v1.XmlPullParser; 82import org.xmlpull.v1.XmlPullParserException; 83import org.xmlpull.v1.XmlSerializer; 84 85import java.io.File; 86import java.io.FileInputStream; 87import java.io.FileNotFoundException; 88import java.io.FileOutputStream; 89import java.io.FilenameFilter; 90import java.io.IOException; 91import java.security.SecureRandom; 92import java.util.ArrayList; 93import java.util.List; 94import java.util.Objects; 95import java.util.Random; 96 97public class PackageInstallerService extends IPackageInstaller.Stub { 98 private static final String TAG = "PackageInstaller"; 99 private static final boolean LOGD = true; 100 101 // TODO: remove outstanding sessions when installer package goes away 102 // TODO: notify listeners in other users when package has been installed there 103 104 /** XML constants used in {@link #mSessionsFile} */ 105 private static final String TAG_SESSIONS = "sessions"; 106 private static final String TAG_SESSION = "session"; 107 private static final String ATTR_SESSION_ID = "sessionId"; 108 private static final String ATTR_USER_ID = "userId"; 109 private static final String ATTR_INSTALLER_PACKAGE_NAME = "installerPackageName"; 110 private static final String ATTR_CREATED_MILLIS = "createdMillis"; 111 private static final String ATTR_SESSION_STAGE_DIR = "sessionStageDir"; 112 private static final String ATTR_SEALED = "sealed"; 113 private static final String ATTR_MODE = "mode"; 114 private static final String ATTR_INSTALL_FLAGS = "installFlags"; 115 private static final String ATTR_INSTALL_LOCATION = "installLocation"; 116 private static final String ATTR_SIZE_BYTES = "sizeBytes"; 117 private static final String ATTR_APP_PACKAGE_NAME = "appPackageName"; 118 private static final String ATTR_APP_ICON = "appIcon"; 119 private static final String ATTR_APP_LABEL = "appLabel"; 120 private static final String ATTR_ORIGINATING_URI = "originatingUri"; 121 private static final String ATTR_REFERRER_URI = "referrerUri"; 122 private static final String ATTR_ABI_OVERRIDE = "abiOverride"; 123 124 /** Automatically destroy sessions older than this */ 125 private static final long MAX_AGE_MILLIS = 3 * DateUtils.DAY_IN_MILLIS; 126 /** Upper bound on number of active sessions for a UID */ 127 private static final long MAX_ACTIVE_SESSIONS = 1024; 128 /** Upper bound on number of historical sessions for a UID */ 129 private static final long MAX_HISTORICAL_SESSIONS = 1048576; 130 131 private final Context mContext; 132 private final PackageManagerService mPm; 133 private final AppOpsManager mAppOps; 134 135 private final File mStagingDir; 136 private final HandlerThread mInstallThread; 137 138 private final Callbacks mCallbacks; 139 140 /** 141 * File storing persisted {@link #mSessions}. 142 */ 143 private final AtomicFile mSessionsFile; 144 145 private final InternalCallback mInternalCallback = new InternalCallback(); 146 147 /** 148 * Used for generating session IDs. Since this is created at boot time, 149 * normal random might be predictable. 150 */ 151 private final Random mRandom = new SecureRandom(); 152 153 @GuardedBy("mSessions") 154 private final SparseArray<PackageInstallerSession> mSessions = new SparseArray<>(); 155 156 /** Historical sessions kept around for debugging purposes */ 157 @GuardedBy("mSessions") 158 private final SparseArray<PackageInstallerSession> mHistoricalSessions = new SparseArray<>(); 159 160 private static final FilenameFilter sStageFilter = new FilenameFilter() { 161 @Override 162 public boolean accept(File dir, String name) { 163 return name.startsWith("vmdl") && name.endsWith(".tmp"); 164 } 165 }; 166 167 public PackageInstallerService(Context context, PackageManagerService pm, File stagingDir) { 168 mContext = context; 169 mPm = pm; 170 mAppOps = (AppOpsManager) mContext.getSystemService(Context.APP_OPS_SERVICE); 171 172 mStagingDir = stagingDir; 173 174 mInstallThread = new HandlerThread(TAG); 175 mInstallThread.start(); 176 177 mCallbacks = new Callbacks(mInstallThread.getLooper()); 178 179 mSessionsFile = new AtomicFile( 180 new File(Environment.getSystemSecureDirectory(), "install_sessions.xml")); 181 182 synchronized (mSessions) { 183 readSessionsLocked(); 184 185 // Clean up orphaned staging directories 186 final ArraySet<File> stages = Sets.newArraySet(mStagingDir.listFiles(sStageFilter)); 187 for (int i = 0; i < mSessions.size(); i++) { 188 final PackageInstallerSession session = mSessions.valueAt(i); 189 stages.remove(session.sessionStageDir); 190 } 191 for (File stage : stages) { 192 Slog.w(TAG, "Deleting orphan stage " + stage); 193 if (stage.isDirectory()) { 194 FileUtils.deleteContents(stage); 195 } 196 stage.delete(); 197 } 198 } 199 } 200 201 @Deprecated 202 public File allocateSessionDir() throws IOException { 203 synchronized (mSessions) { 204 try { 205 final int sessionId = allocateSessionIdLocked(); 206 return prepareSessionStageDir(sessionId); 207 } catch (IllegalStateException e) { 208 throw new IOException(e); 209 } 210 } 211 } 212 213 private void readSessionsLocked() { 214 if (LOGD) Slog.v(TAG, "readSessionsLocked()"); 215 216 mSessions.clear(); 217 218 FileInputStream fis = null; 219 try { 220 fis = mSessionsFile.openRead(); 221 final XmlPullParser in = Xml.newPullParser(); 222 in.setInput(fis, null); 223 224 int type; 225 while ((type = in.next()) != END_DOCUMENT) { 226 if (type == START_TAG) { 227 final String tag = in.getName(); 228 if (TAG_SESSION.equals(tag)) { 229 final PackageInstallerSession session = readSessionLocked(in); 230 final long age = System.currentTimeMillis() - session.createdMillis; 231 232 final boolean valid; 233 if (age >= MAX_AGE_MILLIS) { 234 Slog.w(TAG, "Abandoning old session first created at " 235 + session.createdMillis); 236 valid = false; 237 } else if (!session.sessionStageDir.exists()) { 238 Slog.w(TAG, "Abandoning session with missing stage " 239 + session.sessionStageDir); 240 valid = false; 241 } else { 242 valid = true; 243 } 244 245 if (valid) { 246 mSessions.put(session.sessionId, session); 247 } else { 248 // Since this is early during boot we don't send 249 // any observer events about the session, but we 250 // keep details around for dumpsys. 251 mHistoricalSessions.put(session.sessionId, session); 252 } 253 } 254 } 255 } 256 } catch (FileNotFoundException e) { 257 // Missing sessions are okay, probably first boot 258 } catch (IOException e) { 259 Log.wtf(TAG, "Failed reading install sessions", e); 260 } catch (XmlPullParserException e) { 261 Log.wtf(TAG, "Failed reading install sessions", e); 262 } finally { 263 IoUtils.closeQuietly(fis); 264 } 265 } 266 267 private PackageInstallerSession readSessionLocked(XmlPullParser in) throws IOException { 268 final int sessionId = readIntAttribute(in, ATTR_SESSION_ID); 269 final int userId = readIntAttribute(in, ATTR_USER_ID); 270 final String installerPackageName = readStringAttribute(in, ATTR_INSTALLER_PACKAGE_NAME); 271 final long createdMillis = readLongAttribute(in, ATTR_CREATED_MILLIS); 272 final File sessionStageDir = new File(readStringAttribute(in, ATTR_SESSION_STAGE_DIR)); 273 final boolean sealed = readBooleanAttribute(in, ATTR_SEALED); 274 275 final InstallSessionParams params = new InstallSessionParams( 276 InstallSessionParams.MODE_INVALID); 277 params.mode = readIntAttribute(in, ATTR_MODE); 278 params.installFlags = readIntAttribute(in, ATTR_INSTALL_FLAGS); 279 params.installLocation = readIntAttribute(in, ATTR_INSTALL_LOCATION); 280 params.sizeBytes = readLongAttribute(in, ATTR_SIZE_BYTES); 281 params.appPackageName = readStringAttribute(in, ATTR_APP_PACKAGE_NAME); 282 params.appIcon = readBitmapAttribute(in, ATTR_APP_ICON); 283 params.appLabel = readStringAttribute(in, ATTR_APP_LABEL); 284 params.originatingUri = readUriAttribute(in, ATTR_ORIGINATING_URI); 285 params.referrerUri = readUriAttribute(in, ATTR_REFERRER_URI); 286 params.abiOverride = readStringAttribute(in, ATTR_ABI_OVERRIDE); 287 288 return new PackageInstallerSession(mInternalCallback, mPm, mInstallThread.getLooper(), 289 sessionId, userId, installerPackageName, params, createdMillis, sessionStageDir, 290 sealed); 291 } 292 293 private void writeSessionsLocked() { 294 if (LOGD) Slog.v(TAG, "writeSessionsLocked()"); 295 296 FileOutputStream fos = null; 297 try { 298 fos = mSessionsFile.startWrite(); 299 300 XmlSerializer out = new FastXmlSerializer(); 301 out.setOutput(fos, "utf-8"); 302 out.startDocument(null, true); 303 out.startTag(null, TAG_SESSIONS); 304 final int size = mSessions.size(); 305 for (int i = 0; i < size; i++) { 306 final PackageInstallerSession session = mSessions.valueAt(i); 307 writeSessionLocked(out, session); 308 } 309 out.endTag(null, TAG_SESSIONS); 310 out.endDocument(); 311 312 mSessionsFile.finishWrite(fos); 313 } catch (IOException e) { 314 if (fos != null) { 315 mSessionsFile.failWrite(fos); 316 } 317 } 318 } 319 320 private void writeSessionLocked(XmlSerializer out, PackageInstallerSession session) 321 throws IOException { 322 final InstallSessionParams params = session.params; 323 final Snapshot snapshot = session.snapshot(); 324 325 out.startTag(null, TAG_SESSION); 326 327 writeIntAttribute(out, ATTR_SESSION_ID, session.sessionId); 328 writeIntAttribute(out, ATTR_USER_ID, session.userId); 329 writeStringAttribute(out, ATTR_INSTALLER_PACKAGE_NAME, 330 session.installerPackageName); 331 writeLongAttribute(out, ATTR_CREATED_MILLIS, session.createdMillis); 332 writeStringAttribute(out, ATTR_SESSION_STAGE_DIR, 333 session.sessionStageDir.getAbsolutePath()); 334 writeBooleanAttribute(out, ATTR_SEALED, snapshot.sealed); 335 336 writeIntAttribute(out, ATTR_MODE, params.mode); 337 writeIntAttribute(out, ATTR_INSTALL_FLAGS, params.installFlags); 338 writeIntAttribute(out, ATTR_INSTALL_LOCATION, params.installLocation); 339 writeLongAttribute(out, ATTR_SIZE_BYTES, params.sizeBytes); 340 writeStringAttribute(out, ATTR_APP_PACKAGE_NAME, params.appPackageName); 341 writeBitmapAttribute(out, ATTR_APP_ICON, params.appIcon); 342 writeStringAttribute(out, ATTR_APP_LABEL, params.appLabel); 343 writeUriAttribute(out, ATTR_ORIGINATING_URI, params.originatingUri); 344 writeUriAttribute(out, ATTR_REFERRER_URI, params.referrerUri); 345 writeStringAttribute(out, ATTR_ABI_OVERRIDE, params.abiOverride); 346 347 out.endTag(null, TAG_SESSION); 348 } 349 350 private void writeSessionsAsync() { 351 IoThread.getHandler().post(new Runnable() { 352 @Override 353 public void run() { 354 synchronized (mSessions) { 355 writeSessionsLocked(); 356 } 357 } 358 }); 359 } 360 361 @Override 362 public int createSession(InstallSessionParams params, String installerPackageName, int userId) { 363 final int callingUid = Binder.getCallingUid(); 364 mPm.enforceCrossUserPermission(callingUid, userId, true, "createSession"); 365 366 if (mPm.isUserRestricted(UserHandle.getUserId(callingUid), 367 UserManager.DISALLOW_INSTALL_APPS)) { 368 throw new SecurityException("User restriction prevents installing"); 369 } 370 371 if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID)) { 372 installerPackageName = "com.android.shell"; 373 374 params.installFlags |= INSTALL_FROM_ADB; 375 376 } else { 377 mAppOps.checkPackage(callingUid, installerPackageName); 378 379 params.installFlags &= ~INSTALL_FROM_ADB; 380 params.installFlags &= ~INSTALL_ALL_USERS; 381 params.installFlags |= INSTALL_REPLACE_EXISTING; 382 } 383 384 switch (params.mode) { 385 case InstallSessionParams.MODE_FULL_INSTALL: 386 case InstallSessionParams.MODE_INHERIT_EXISTING: 387 break; 388 default: 389 throw new IllegalArgumentException("Params must have valid mode set"); 390 } 391 392 // Defensively resize giant app icons 393 if (params.appIcon != null) { 394 final ActivityManager am = (ActivityManager) mContext.getSystemService( 395 Context.ACTIVITY_SERVICE); 396 final int iconSize = am.getLauncherLargeIconSize(); 397 if ((params.appIcon.getWidth() > iconSize * 2) 398 || (params.appIcon.getHeight() > iconSize * 2)) { 399 params.appIcon = Bitmap.createScaledBitmap(params.appIcon, iconSize, iconSize, 400 true); 401 } 402 } 403 404 // Sanity check that install could fit 405 if (params.sizeBytes > 0) { 406 try { 407 mPm.freeStorage(params.sizeBytes); 408 } catch (IOException e) { 409 throw ExceptionUtils.wrap(e); 410 } 411 } 412 413 final int sessionId; 414 final PackageInstallerSession session; 415 synchronized (mSessions) { 416 // Sanity check that installer isn't going crazy 417 final int activeCount = getSessionCount(mSessions, callingUid); 418 if (activeCount >= MAX_ACTIVE_SESSIONS) { 419 throw new IllegalStateException( 420 "Too many active sessions for UID " + callingUid); 421 } 422 final int historicalCount = getSessionCount(mHistoricalSessions, callingUid); 423 if (historicalCount >= MAX_HISTORICAL_SESSIONS) { 424 throw new IllegalStateException( 425 "Too many historical sessions for UID " + callingUid); 426 } 427 428 sessionId = allocateSessionIdLocked(); 429 430 final long createdMillis = System.currentTimeMillis(); 431 final File sessionStageDir = prepareSessionStageDir(sessionId); 432 433 session = new PackageInstallerSession(mInternalCallback, mPm, 434 mInstallThread.getLooper(), sessionId, userId, installerPackageName, params, 435 createdMillis, sessionStageDir, false); 436 mSessions.put(sessionId, session); 437 } 438 439 mCallbacks.notifySessionCreated(session.sessionId, session.userId); 440 writeSessionsAsync(); 441 return sessionId; 442 } 443 444 @Override 445 public IPackageInstallerSession openSession(int sessionId) { 446 synchronized (mSessions) { 447 final PackageInstallerSession session = mSessions.get(sessionId); 448 if (session == null) { 449 throw new IllegalStateException("Missing session " + sessionId); 450 } 451 if (!isCallingUidOwner(session)) { 452 throw new SecurityException("Caller has no access to session " + sessionId); 453 } 454 if (session.openCount.getAndIncrement() == 0) { 455 mCallbacks.notifySessionOpened(sessionId, session.userId); 456 } 457 return session; 458 } 459 } 460 461 private int allocateSessionIdLocked() { 462 int n = 0; 463 int sessionId; 464 do { 465 sessionId = mRandom.nextInt(Integer.MAX_VALUE - 1) + 1; 466 if (mSessions.get(sessionId) == null && mHistoricalSessions.get(sessionId) == null) { 467 return sessionId; 468 } 469 } while (n++ < 32); 470 471 throw new IllegalStateException("Failed to allocate session ID"); 472 } 473 474 private File prepareSessionStageDir(int sessionId) { 475 final File file = new File(mStagingDir, "vmdl" + sessionId + ".tmp"); 476 477 if (file.exists()) { 478 throw new IllegalStateException("Session dir already exists: " + file); 479 } 480 481 try { 482 Os.mkdir(file.getAbsolutePath(), 0755); 483 Os.chmod(file.getAbsolutePath(), 0755); 484 } catch (ErrnoException e) { 485 // This purposefully throws if directory already exists 486 throw new IllegalStateException("Failed to prepare session dir", e); 487 } 488 489 if (!SELinux.restorecon(file)) { 490 throw new IllegalStateException("Failed to restorecon session dir"); 491 } 492 493 return file; 494 } 495 496 @Override 497 public InstallSessionInfo getSessionInfo(int sessionId) { 498 synchronized (mSessions) { 499 final PackageInstallerSession session = mSessions.get(sessionId); 500 if (!isCallingUidOwner(session)) { 501 enforceCallerCanReadSessions(); 502 } 503 return session != null ? session.generateInfo() : null; 504 } 505 } 506 507 @Override 508 public List<InstallSessionInfo> getAllSessions(int userId) { 509 mPm.enforceCrossUserPermission(Binder.getCallingUid(), userId, true, "getAllSessions"); 510 enforceCallerCanReadSessions(); 511 512 final List<InstallSessionInfo> result = new ArrayList<>(); 513 synchronized (mSessions) { 514 for (int i = 0; i < mSessions.size(); i++) { 515 final PackageInstallerSession session = mSessions.valueAt(i); 516 if (session.userId == userId) { 517 result.add(session.generateInfo()); 518 } 519 } 520 } 521 return result; 522 } 523 524 @Override 525 public List<InstallSessionInfo> getMySessions(String installerPackageName, int userId) { 526 mPm.enforceCrossUserPermission(Binder.getCallingUid(), userId, true, "getMySessions"); 527 mAppOps.checkPackage(Binder.getCallingUid(), installerPackageName); 528 529 final List<InstallSessionInfo> result = new ArrayList<>(); 530 synchronized (mSessions) { 531 for (int i = 0; i < mSessions.size(); i++) { 532 final PackageInstallerSession session = mSessions.valueAt(i); 533 if (Objects.equals(session.installerPackageName, installerPackageName) 534 && session.userId == userId) { 535 result.add(session.generateInfo()); 536 } 537 } 538 } 539 return result; 540 } 541 542 @Override 543 public void uninstall(String packageName, int flags, IPackageDeleteObserver observer, 544 int userId) { 545 mPm.enforceCrossUserPermission(Binder.getCallingUid(), userId, true, "uninstall"); 546 547 // TODO: enforce installer of record or permission 548 mPm.deletePackageAsUser(packageName, observer, userId, flags); 549 } 550 551 @Override 552 public void uninstallSplit(String basePackageName, String overlayName, int flags, 553 IPackageDeleteObserver observer, int userId) { 554 mPm.enforceCrossUserPermission(Binder.getCallingUid(), userId, true, "uninstallSplit"); 555 556 // TODO: flesh out once PM has split support 557 throw new UnsupportedOperationException(); 558 } 559 560 @Override 561 public void registerCallback(IPackageInstallerCallback callback, int userId) { 562 mPm.enforceCrossUserPermission(Binder.getCallingUid(), userId, true, "registerCallback"); 563 enforceCallerCanReadSessions(); 564 565 mCallbacks.register(callback, userId); 566 } 567 568 @Override 569 public void unregisterCallback(IPackageInstallerCallback callback) { 570 mCallbacks.unregister(callback); 571 } 572 573 private static int getSessionCount(SparseArray<PackageInstallerSession> sessions, 574 int installerUid) { 575 int count = 0; 576 final int size = sessions.size(); 577 for (int i = 0; i < size; i++) { 578 final PackageInstallerSession session = sessions.valueAt(i); 579 if (session.installerUid == installerUid) { 580 count++; 581 } 582 } 583 return count; 584 } 585 586 private boolean isCallingUidOwner(PackageInstallerSession session) { 587 final int callingUid = Binder.getCallingUid(); 588 if (callingUid == Process.ROOT_UID) { 589 return true; 590 } else { 591 return (session != null) && (callingUid == session.installerUid); 592 } 593 } 594 595 /** 596 * We allow those with permission, or the current home app. 597 */ 598 private void enforceCallerCanReadSessions() { 599 final boolean hasPermission = (mContext.checkCallingOrSelfPermission( 600 android.Manifest.permission.READ_INSTALL_SESSIONS) 601 == PackageManager.PERMISSION_GRANTED); 602 final boolean isHomeApp = mPm.checkCallerIsHomeApp(); 603 if (hasPermission || isHomeApp) { 604 return; 605 } else { 606 throw new SecurityException("Caller must be current home app to read install sessions"); 607 } 608 } 609 610 private static class Callbacks extends Handler { 611 private static final int MSG_SESSION_CREATED = 1; 612 private static final int MSG_SESSION_OPENED = 2; 613 private static final int MSG_SESSION_PROGRESS_CHANGED = 3; 614 private static final int MSG_SESSION_CLOSED = 4; 615 private static final int MSG_SESSION_FINISHED = 5; 616 617 private final RemoteCallbackList<IPackageInstallerCallback> 618 mCallbacks = new RemoteCallbackList<>(); 619 620 public Callbacks(Looper looper) { 621 super(looper); 622 } 623 624 public void register(IPackageInstallerCallback callback, int userId) { 625 mCallbacks.register(callback, new UserHandle(userId)); 626 } 627 628 public void unregister(IPackageInstallerCallback callback) { 629 mCallbacks.unregister(callback); 630 } 631 632 @Override 633 public void handleMessage(Message msg) { 634 final int userId = msg.arg2; 635 final int n = mCallbacks.beginBroadcast(); 636 for (int i = 0; i < n; i++) { 637 final IPackageInstallerCallback callback = mCallbacks.getBroadcastItem(i); 638 final UserHandle user = (UserHandle) mCallbacks.getBroadcastCookie(i); 639 // TODO: dispatch notifications for slave profiles 640 if (userId == user.getIdentifier()) { 641 try { 642 invokeCallback(callback, msg); 643 } catch (RemoteException ignored) { 644 } 645 } 646 } 647 mCallbacks.finishBroadcast(); 648 } 649 650 private void invokeCallback(IPackageInstallerCallback callback, Message msg) 651 throws RemoteException { 652 final int sessionId = msg.arg1; 653 switch (msg.what) { 654 case MSG_SESSION_CREATED: 655 callback.onSessionCreated(sessionId); 656 break; 657 case MSG_SESSION_OPENED: 658 callback.onSessionOpened(sessionId); 659 break; 660 case MSG_SESSION_PROGRESS_CHANGED: 661 callback.onSessionProgressChanged(sessionId, (float) msg.obj); 662 break; 663 case MSG_SESSION_CLOSED: 664 callback.onSessionClosed(sessionId); 665 break; 666 case MSG_SESSION_FINISHED: 667 callback.onSessionFinished(sessionId, (boolean) msg.obj); 668 break; 669 } 670 } 671 672 private void notifySessionCreated(int sessionId, int userId) { 673 obtainMessage(MSG_SESSION_CREATED, sessionId, userId).sendToTarget(); 674 } 675 676 private void notifySessionOpened(int sessionId, int userId) { 677 obtainMessage(MSG_SESSION_OPENED, sessionId, userId).sendToTarget(); 678 } 679 680 private void notifySessionProgressChanged(int sessionId, int userId, float progress) { 681 obtainMessage(MSG_SESSION_PROGRESS_CHANGED, sessionId, userId, progress).sendToTarget(); 682 } 683 684 private void notifySessionClosed(int sessionId, int userId) { 685 obtainMessage(MSG_SESSION_CLOSED, sessionId, userId).sendToTarget(); 686 } 687 688 public void notifySessionFinished(int sessionId, int userId, boolean success) { 689 obtainMessage(MSG_SESSION_FINISHED, sessionId, userId, success).sendToTarget(); 690 } 691 } 692 693 void dump(IndentingPrintWriter pw) { 694 synchronized (mSessions) { 695 pw.println("Active install sessions:"); 696 pw.increaseIndent(); 697 int N = mSessions.size(); 698 for (int i = 0; i < N; i++) { 699 final PackageInstallerSession session = mSessions.valueAt(i); 700 session.dump(pw); 701 pw.println(); 702 } 703 pw.println(); 704 pw.decreaseIndent(); 705 706 pw.println("Historical install sessions:"); 707 pw.increaseIndent(); 708 N = mHistoricalSessions.size(); 709 for (int i = 0; i < N; i++) { 710 final PackageInstallerSession session = mHistoricalSessions.valueAt(i); 711 session.dump(pw); 712 pw.println(); 713 } 714 pw.println(); 715 pw.decreaseIndent(); 716 } 717 } 718 719 class InternalCallback { 720 public void onSessionProgressChanged(PackageInstallerSession session, float progress) { 721 mCallbacks.notifySessionProgressChanged(session.sessionId, session.userId, progress); 722 } 723 724 public void onSessionClosed(PackageInstallerSession session) { 725 mCallbacks.notifySessionClosed(session.sessionId, session.userId); 726 } 727 728 public void onSessionFinished(PackageInstallerSession session, boolean success) { 729 mCallbacks.notifySessionFinished(session.sessionId, session.userId, success); 730 synchronized (mSessions) { 731 mSessions.remove(session.sessionId); 732 mHistoricalSessions.put(session.sessionId, session); 733 } 734 writeSessionsAsync(); 735 } 736 } 737} 738