PackageInstallerService.java revision cd65448ccd13c4c2d0fe9e9623fec3a898ab9372 
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 com.android.internal.util.XmlUtils.readBitmapAttribute;
20import static com.android.internal.util.XmlUtils.readBooleanAttribute;
21import static com.android.internal.util.XmlUtils.readIntAttribute;
22import static com.android.internal.util.XmlUtils.readLongAttribute;
23import static com.android.internal.util.XmlUtils.readStringAttribute;
24import static com.android.internal.util.XmlUtils.readUriAttribute;
25import static com.android.internal.util.XmlUtils.writeBooleanAttribute;
26import static com.android.internal.util.XmlUtils.writeIntAttribute;
27import static com.android.internal.util.XmlUtils.writeLongAttribute;
28import static com.android.internal.util.XmlUtils.writeStringAttribute;
29import static com.android.internal.util.XmlUtils.writeUriAttribute;
30import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
31import static org.xmlpull.v1.XmlPullParser.START_TAG;
32
33import android.Manifest;
34import android.app.ActivityManager;
35import android.app.AppGlobals;
36import android.app.AppOpsManager;
37import android.app.Notification;
38import android.app.NotificationManager;
39import android.app.PackageDeleteObserver;
40import android.app.PackageInstallObserver;
41import android.app.admin.DevicePolicyManager;
42import android.content.Context;
43import android.content.Intent;
44import android.content.IntentSender;
45import android.content.IntentSender.SendIntentException;
46import android.content.pm.IPackageInstaller;
47import android.content.pm.IPackageInstallerCallback;
48import android.content.pm.IPackageInstallerSession;
49import android.content.pm.PackageInfo;
50import android.content.pm.PackageInstaller;
51import android.content.pm.PackageInstaller.SessionInfo;
52import android.content.pm.PackageInstaller.SessionParams;
53import android.content.pm.PackageManager;
54import android.content.pm.ParceledListSlice;
55import android.graphics.Bitmap;
56import android.graphics.Bitmap.CompressFormat;
57import android.graphics.BitmapFactory;
58import android.net.Uri;
59import android.os.Binder;
60import android.os.Bundle;
61import android.os.Environment;
62import android.os.Handler;
63import android.os.HandlerThread;
64import android.os.Looper;
65import android.os.Message;
66import android.os.Process;
67import android.os.RemoteCallbackList;
68import android.os.RemoteException;
69import android.os.SELinux;
70import android.os.UserHandle;
71import android.os.UserManager;
72import android.os.storage.StorageManager;
73import android.system.ErrnoException;
74import android.system.Os;
75import android.text.TextUtils;
76import android.text.format.DateUtils;
77import android.util.ArraySet;
78import android.util.AtomicFile;
79import android.util.ExceptionUtils;
80import android.util.Slog;
81import android.util.SparseArray;
82import android.util.SparseBooleanArray;
83import android.util.Xml;
84
85import libcore.io.IoUtils;
86
87import com.android.internal.R;
88import com.android.internal.annotations.GuardedBy;
89import com.android.internal.content.PackageHelper;
90import com.android.internal.util.FastXmlSerializer;
91import com.android.internal.util.ImageUtils;
92import com.android.internal.util.IndentingPrintWriter;
93import com.android.server.IoThread;
94
95import org.xmlpull.v1.XmlPullParser;
96import org.xmlpull.v1.XmlPullParserException;
97import org.xmlpull.v1.XmlSerializer;
98
99import java.io.File;
100import java.io.FileInputStream;
101import java.io.FileNotFoundException;
102import java.io.FileOutputStream;
103import java.io.FilenameFilter;
104import java.io.IOException;
105import java.nio.charset.StandardCharsets;
106import java.security.SecureRandom;
107import java.util.ArrayList;
108import java.util.Collections;
109import java.util.List;
110import java.util.Objects;
111import java.util.Random;
112
113public class PackageInstallerService extends IPackageInstaller.Stub {
114    private static final String TAG = "PackageInstaller";
115    private static final boolean LOGD = false;
116
117    // TODO: remove outstanding sessions when installer package goes away
118    // TODO: notify listeners in other users when package has been installed there
119    // TODO: purge expired sessions periodically in addition to at reboot
120
121    /** XML constants used in {@link #mSessionsFile} */
122    private static final String TAG_SESSIONS = "sessions";
123    private static final String TAG_SESSION = "session";
124    private static final String TAG_GRANTED_RUNTIME_PERMISSION = "granted-runtime-permission";
125    private static final String ATTR_SESSION_ID = "sessionId";
126    private static final String ATTR_USER_ID = "userId";
127    private static final String ATTR_INSTALLER_PACKAGE_NAME = "installerPackageName";
128    private static final String ATTR_INSTALLER_UID = "installerUid";
129    private static final String ATTR_CREATED_MILLIS = "createdMillis";
130    private static final String ATTR_SESSION_STAGE_DIR = "sessionStageDir";
131    private static final String ATTR_SESSION_STAGE_CID = "sessionStageCid";
132    private static final String ATTR_PREPARED = "prepared";
133    private static final String ATTR_SEALED = "sealed";
134    private static final String ATTR_MODE = "mode";
135    private static final String ATTR_INSTALL_FLAGS = "installFlags";
136    private static final String ATTR_INSTALL_LOCATION = "installLocation";
137    private static final String ATTR_SIZE_BYTES = "sizeBytes";
138    private static final String ATTR_APP_PACKAGE_NAME = "appPackageName";
139    @Deprecated
140    private static final String ATTR_APP_ICON = "appIcon";
141    private static final String ATTR_APP_LABEL = "appLabel";
142    private static final String ATTR_ORIGINATING_URI = "originatingUri";
143    private static final String ATTR_ORIGINATING_UID = "originatingUid";
144    private static final String ATTR_REFERRER_URI = "referrerUri";
145    private static final String ATTR_ABI_OVERRIDE = "abiOverride";
146    private static final String ATTR_VOLUME_UUID = "volumeUuid";
147    private static final String ATTR_NAME = "name";
148
149    /** Automatically destroy sessions older than this */
150    private static final long MAX_AGE_MILLIS = 3 * DateUtils.DAY_IN_MILLIS;
151    /** Upper bound on number of active sessions for a UID */
152    private static final long MAX_ACTIVE_SESSIONS = 1024;
153    /** Upper bound on number of historical sessions for a UID */
154    private static final long MAX_HISTORICAL_SESSIONS = 1048576;
155
156    private final Context mContext;
157    private final PackageManagerService mPm;
158
159    private AppOpsManager mAppOps;
160
161    private final HandlerThread mInstallThread;
162    private final Handler mInstallHandler;
163
164    private final Callbacks mCallbacks;
165
166    /**
167     * File storing persisted {@link #mSessions} metadata.
168     */
169    private final AtomicFile mSessionsFile;
170
171    /**
172     * Directory storing persisted {@link #mSessions} metadata which is too
173     * heavy to store directly in {@link #mSessionsFile}.
174     */
175    private final File mSessionsDir;
176
177    private final InternalCallback mInternalCallback = new InternalCallback();
178
179    /**
180     * Used for generating session IDs. Since this is created at boot time,
181     * normal random might be predictable.
182     */
183    private final Random mRandom = new SecureRandom();
184
185    @GuardedBy("mSessions")
186    private final SparseArray<PackageInstallerSession> mSessions = new SparseArray<>();
187
188    /** Historical sessions kept around for debugging purposes */
189    @GuardedBy("mSessions")
190    private final SparseArray<PackageInstallerSession> mHistoricalSessions = new SparseArray<>();
191
192    /** Sessions allocated to legacy users */
193    @GuardedBy("mSessions")
194    private final SparseBooleanArray mLegacySessions = new SparseBooleanArray();
195
196    private static final FilenameFilter sStageFilter = new FilenameFilter() {
197        @Override
198        public boolean accept(File dir, String name) {
199            return isStageName(name);
200        }
201    };
202
203    public PackageInstallerService(Context context, PackageManagerService pm) {
204        mContext = context;
205        mPm = pm;
206
207        mInstallThread = new HandlerThread(TAG);
208        mInstallThread.start();
209
210        mInstallHandler = new Handler(mInstallThread.getLooper());
211
212        mCallbacks = new Callbacks(mInstallThread.getLooper());
213
214        mSessionsFile = new AtomicFile(
215                new File(Environment.getSystemSecureDirectory(), "install_sessions.xml"));
216        mSessionsDir = new File(Environment.getSystemSecureDirectory(), "install_sessions");
217        mSessionsDir.mkdirs();
218
219        synchronized (mSessions) {
220            readSessionsLocked();
221
222            reconcileStagesLocked(StorageManager.UUID_PRIVATE_INTERNAL, false /*isEphemeral*/);
223            reconcileStagesLocked(StorageManager.UUID_PRIVATE_INTERNAL, true /*isEphemeral*/);
224
225            final ArraySet<File> unclaimedIcons = newArraySet(
226                    mSessionsDir.listFiles());
227
228            // Ignore stages and icons claimed by active sessions
229            for (int i = 0; i < mSessions.size(); i++) {
230                final PackageInstallerSession session = mSessions.valueAt(i);
231                unclaimedIcons.remove(buildAppIconFile(session.sessionId));
232            }
233
234            // Clean up orphaned icons
235            for (File icon : unclaimedIcons) {
236                Slog.w(TAG, "Deleting orphan icon " + icon);
237                icon.delete();
238            }
239        }
240    }
241
242    public void systemReady() {
243        mAppOps = mContext.getSystemService(AppOpsManager.class);
244    }
245
246    private void reconcileStagesLocked(String volumeUuid, boolean isEphemeral) {
247        final File stagingDir = buildStagingDir(volumeUuid, isEphemeral);
248        final ArraySet<File> unclaimedStages = newArraySet(
249                stagingDir.listFiles(sStageFilter));
250
251        // Ignore stages claimed by active sessions
252        for (int i = 0; i < mSessions.size(); i++) {
253            final PackageInstallerSession session = mSessions.valueAt(i);
254            unclaimedStages.remove(session.stageDir);
255        }
256
257        // Clean up orphaned staging directories
258        for (File stage : unclaimedStages) {
259            Slog.w(TAG, "Deleting orphan stage " + stage);
260            synchronized (mPm.mInstallLock) {
261                if (stage.isDirectory()) {
262                    mPm.mInstaller.rmPackageDir(stage.getAbsolutePath());
263                } else {
264                    stage.delete();
265                }
266            }
267        }
268    }
269
270    public void onPrivateVolumeMounted(String volumeUuid) {
271        synchronized (mSessions) {
272            reconcileStagesLocked(volumeUuid, false /*isEphemeral*/);
273        }
274    }
275
276    public void onSecureContainersAvailable() {
277        synchronized (mSessions) {
278            final ArraySet<String> unclaimed = new ArraySet<>();
279            for (String cid : PackageHelper.getSecureContainerList()) {
280                if (isStageName(cid)) {
281                    unclaimed.add(cid);
282                }
283            }
284
285            // Ignore stages claimed by active sessions
286            for (int i = 0; i < mSessions.size(); i++) {
287                final PackageInstallerSession session = mSessions.valueAt(i);
288                final String cid = session.stageCid;
289
290                if (unclaimed.remove(cid)) {
291                    // Claimed by active session, mount it
292                    PackageHelper.mountSdDir(cid, PackageManagerService.getEncryptKey(),
293                            Process.SYSTEM_UID);
294                }
295            }
296
297            // Clean up orphaned staging containers
298            for (String cid : unclaimed) {
299                Slog.w(TAG, "Deleting orphan container " + cid);
300                PackageHelper.destroySdDir(cid);
301            }
302        }
303    }
304
305    public static boolean isStageName(String name) {
306        final boolean isFile = name.startsWith("vmdl") && name.endsWith(".tmp");
307        final boolean isContainer = name.startsWith("smdl") && name.endsWith(".tmp");
308        final boolean isLegacyContainer = name.startsWith("smdl2tmp");
309        return isFile || isContainer || isLegacyContainer;
310    }
311
312    @Deprecated
313    public File allocateStageDirLegacy(String volumeUuid, boolean isEphemeral) throws IOException {
314        synchronized (mSessions) {
315            try {
316                final int sessionId = allocateSessionIdLocked();
317                mLegacySessions.put(sessionId, true);
318                final File stageDir = buildStageDir(volumeUuid, sessionId, isEphemeral);
319                prepareStageDir(stageDir);
320                return stageDir;
321            } catch (IllegalStateException e) {
322                throw new IOException(e);
323            }
324        }
325    }
326
327    @Deprecated
328    public String allocateExternalStageCidLegacy() {
329        synchronized (mSessions) {
330            final int sessionId = allocateSessionIdLocked();
331            mLegacySessions.put(sessionId, true);
332            return "smdl" + sessionId + ".tmp";
333        }
334    }
335
336    private void readSessionsLocked() {
337        if (LOGD) Slog.v(TAG, "readSessionsLocked()");
338
339        mSessions.clear();
340
341        FileInputStream fis = null;
342        try {
343            fis = mSessionsFile.openRead();
344            final XmlPullParser in = Xml.newPullParser();
345            in.setInput(fis, StandardCharsets.UTF_8.name());
346
347            int type;
348            while ((type = in.next()) != END_DOCUMENT) {
349                if (type == START_TAG) {
350                    final String tag = in.getName();
351                    if (TAG_SESSION.equals(tag)) {
352                        final PackageInstallerSession session = readSessionLocked(in);
353                        final long age = System.currentTimeMillis() - session.createdMillis;
354
355                        final boolean valid;
356                        if (age >= MAX_AGE_MILLIS) {
357                            Slog.w(TAG, "Abandoning old session first created at "
358                                    + session.createdMillis);
359                            valid = false;
360                        } else {
361                            valid = true;
362                        }
363
364                        if (valid) {
365                            mSessions.put(session.sessionId, session);
366                        } else {
367                            // Since this is early during boot we don't send
368                            // any observer events about the session, but we
369                            // keep details around for dumpsys.
370                            mHistoricalSessions.put(session.sessionId, session);
371                        }
372                    }
373                }
374            }
375        } catch (FileNotFoundException e) {
376            // Missing sessions are okay, probably first boot
377        } catch (IOException | XmlPullParserException e) {
378            Slog.wtf(TAG, "Failed reading install sessions", e);
379        } finally {
380            IoUtils.closeQuietly(fis);
381        }
382    }
383
384    private PackageInstallerSession readSessionLocked(XmlPullParser in) throws IOException,
385            XmlPullParserException {
386        final int sessionId = readIntAttribute(in, ATTR_SESSION_ID);
387        final int userId = readIntAttribute(in, ATTR_USER_ID);
388        final String installerPackageName = readStringAttribute(in, ATTR_INSTALLER_PACKAGE_NAME);
389        final int installerUid = readIntAttribute(in, ATTR_INSTALLER_UID, mPm.getPackageUid(
390                installerPackageName, PackageManager.MATCH_UNINSTALLED_PACKAGES, userId));
391        final long createdMillis = readLongAttribute(in, ATTR_CREATED_MILLIS);
392        final String stageDirRaw = readStringAttribute(in, ATTR_SESSION_STAGE_DIR);
393        final File stageDir = (stageDirRaw != null) ? new File(stageDirRaw) : null;
394        final String stageCid = readStringAttribute(in, ATTR_SESSION_STAGE_CID);
395        final boolean prepared = readBooleanAttribute(in, ATTR_PREPARED, true);
396        final boolean sealed = readBooleanAttribute(in, ATTR_SEALED);
397
398        final SessionParams params = new SessionParams(
399                SessionParams.MODE_INVALID);
400        params.mode = readIntAttribute(in, ATTR_MODE);
401        params.installFlags = readIntAttribute(in, ATTR_INSTALL_FLAGS);
402        params.installLocation = readIntAttribute(in, ATTR_INSTALL_LOCATION);
403        params.sizeBytes = readLongAttribute(in, ATTR_SIZE_BYTES);
404        params.appPackageName = readStringAttribute(in, ATTR_APP_PACKAGE_NAME);
405        params.appIcon = readBitmapAttribute(in, ATTR_APP_ICON);
406        params.appLabel = readStringAttribute(in, ATTR_APP_LABEL);
407        params.originatingUri = readUriAttribute(in, ATTR_ORIGINATING_URI);
408        params.originatingUid =
409                readIntAttribute(in, ATTR_ORIGINATING_UID, SessionParams.UID_UNKNOWN);
410        params.referrerUri = readUriAttribute(in, ATTR_REFERRER_URI);
411        params.abiOverride = readStringAttribute(in, ATTR_ABI_OVERRIDE);
412        params.volumeUuid = readStringAttribute(in, ATTR_VOLUME_UUID);
413        params.grantedRuntimePermissions = readGrantedRuntimePermissions(in);
414
415        final File appIconFile = buildAppIconFile(sessionId);
416        if (appIconFile.exists()) {
417            params.appIcon = BitmapFactory.decodeFile(appIconFile.getAbsolutePath());
418            params.appIconLastModified = appIconFile.lastModified();
419        }
420
421        return new PackageInstallerSession(mInternalCallback, mContext, mPm,
422                mInstallThread.getLooper(), sessionId, userId, installerPackageName, installerUid,
423                params, createdMillis, stageDir, stageCid, prepared, sealed);
424    }
425
426    private void writeSessionsLocked() {
427        if (LOGD) Slog.v(TAG, "writeSessionsLocked()");
428
429        FileOutputStream fos = null;
430        try {
431            fos = mSessionsFile.startWrite();
432
433            XmlSerializer out = new FastXmlSerializer();
434            out.setOutput(fos, StandardCharsets.UTF_8.name());
435            out.startDocument(null, true);
436            out.startTag(null, TAG_SESSIONS);
437            final int size = mSessions.size();
438            for (int i = 0; i < size; i++) {
439                final PackageInstallerSession session = mSessions.valueAt(i);
440                writeSessionLocked(out, session);
441            }
442            out.endTag(null, TAG_SESSIONS);
443            out.endDocument();
444
445            mSessionsFile.finishWrite(fos);
446        } catch (IOException e) {
447            if (fos != null) {
448                mSessionsFile.failWrite(fos);
449            }
450        }
451    }
452
453    private void writeSessionLocked(XmlSerializer out, PackageInstallerSession session)
454            throws IOException {
455        final SessionParams params = session.params;
456
457        out.startTag(null, TAG_SESSION);
458
459        writeIntAttribute(out, ATTR_SESSION_ID, session.sessionId);
460        writeIntAttribute(out, ATTR_USER_ID, session.userId);
461        writeStringAttribute(out, ATTR_INSTALLER_PACKAGE_NAME,
462                session.installerPackageName);
463        writeIntAttribute(out, ATTR_INSTALLER_UID, session.installerUid);
464        writeLongAttribute(out, ATTR_CREATED_MILLIS, session.createdMillis);
465        if (session.stageDir != null) {
466            writeStringAttribute(out, ATTR_SESSION_STAGE_DIR,
467                    session.stageDir.getAbsolutePath());
468        }
469        if (session.stageCid != null) {
470            writeStringAttribute(out, ATTR_SESSION_STAGE_CID, session.stageCid);
471        }
472        writeBooleanAttribute(out, ATTR_PREPARED, session.isPrepared());
473        writeBooleanAttribute(out, ATTR_SEALED, session.isSealed());
474
475        writeIntAttribute(out, ATTR_MODE, params.mode);
476        writeIntAttribute(out, ATTR_INSTALL_FLAGS, params.installFlags);
477        writeIntAttribute(out, ATTR_INSTALL_LOCATION, params.installLocation);
478        writeLongAttribute(out, ATTR_SIZE_BYTES, params.sizeBytes);
479        writeStringAttribute(out, ATTR_APP_PACKAGE_NAME, params.appPackageName);
480        writeStringAttribute(out, ATTR_APP_LABEL, params.appLabel);
481        writeUriAttribute(out, ATTR_ORIGINATING_URI, params.originatingUri);
482        writeIntAttribute(out, ATTR_ORIGINATING_UID, params.originatingUid);
483        writeUriAttribute(out, ATTR_REFERRER_URI, params.referrerUri);
484        writeStringAttribute(out, ATTR_ABI_OVERRIDE, params.abiOverride);
485        writeStringAttribute(out, ATTR_VOLUME_UUID, params.volumeUuid);
486
487        // Persist app icon if changed since last written
488        final File appIconFile = buildAppIconFile(session.sessionId);
489        if (params.appIcon == null && appIconFile.exists()) {
490            appIconFile.delete();
491        } else if (params.appIcon != null
492                && appIconFile.lastModified() != params.appIconLastModified) {
493            if (LOGD) Slog.w(TAG, "Writing changed icon " + appIconFile);
494            FileOutputStream os = null;
495            try {
496                os = new FileOutputStream(appIconFile);
497                params.appIcon.compress(CompressFormat.PNG, 90, os);
498            } catch (IOException e) {
499                Slog.w(TAG, "Failed to write icon " + appIconFile + ": " + e.getMessage());
500            } finally {
501                IoUtils.closeQuietly(os);
502            }
503
504            params.appIconLastModified = appIconFile.lastModified();
505        }
506
507        writeGrantedRuntimePermissions(out, params.grantedRuntimePermissions);
508
509        out.endTag(null, TAG_SESSION);
510    }
511
512    private static void writeGrantedRuntimePermissions(XmlSerializer out,
513            String[] grantedRuntimePermissions) throws IOException {
514        if (grantedRuntimePermissions != null) {
515            for (String permission : grantedRuntimePermissions) {
516                out.startTag(null, TAG_GRANTED_RUNTIME_PERMISSION);
517                writeStringAttribute(out, ATTR_NAME, permission);
518                out.endTag(null, TAG_GRANTED_RUNTIME_PERMISSION);
519            }
520        }
521    }
522
523    private static String[] readGrantedRuntimePermissions(XmlPullParser in)
524            throws IOException, XmlPullParserException {
525        List<String> permissions = null;
526
527        final int outerDepth = in.getDepth();
528        int type;
529        while ((type = in.next()) != XmlPullParser.END_DOCUMENT
530                && (type != XmlPullParser.END_TAG || in.getDepth() > outerDepth)) {
531            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
532                continue;
533            }
534            if (TAG_GRANTED_RUNTIME_PERMISSION.equals(in.getName())) {
535                String permission = readStringAttribute(in, ATTR_NAME);
536                if (permissions == null) {
537                    permissions = new ArrayList<>();
538                }
539                permissions.add(permission);
540            }
541        }
542
543        if (permissions == null) {
544            return null;
545        }
546
547        String[] permissionsArray = new String[permissions.size()];
548        permissions.toArray(permissionsArray);
549        return permissionsArray;
550    }
551
552    private File buildAppIconFile(int sessionId) {
553        return new File(mSessionsDir, "app_icon." + sessionId + ".png");
554    }
555
556    private void writeSessionsAsync() {
557        IoThread.getHandler().post(new Runnable() {
558            @Override
559            public void run() {
560                synchronized (mSessions) {
561                    writeSessionsLocked();
562                }
563            }
564        });
565    }
566
567    @Override
568    public int createSession(SessionParams params, String installerPackageName, int userId) {
569        try {
570            return createSessionInternal(params, installerPackageName, userId);
571        } catch (IOException e) {
572            throw ExceptionUtils.wrap(e);
573        }
574    }
575
576    private int createSessionInternal(SessionParams params, String installerPackageName, int userId)
577            throws IOException {
578        final int callingUid = Binder.getCallingUid();
579        mPm.enforceCrossUserPermission(callingUid, userId, true, true, "createSession");
580
581        if (mPm.isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
582            throw new SecurityException("User restriction prevents installing");
583        }
584
585        if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID)) {
586            params.installFlags |= PackageManager.INSTALL_FROM_ADB;
587
588        } else {
589            mAppOps.checkPackage(callingUid, installerPackageName);
590
591            params.installFlags &= ~PackageManager.INSTALL_FROM_ADB;
592            params.installFlags &= ~PackageManager.INSTALL_ALL_USERS;
593            params.installFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
594        }
595
596        // Only system components can circumvent runtime permissions when installing.
597        if ((params.installFlags & PackageManager.INSTALL_GRANT_RUNTIME_PERMISSIONS) != 0
598                && mContext.checkCallingOrSelfPermission(Manifest.permission
599                .INSTALL_GRANT_RUNTIME_PERMISSIONS) == PackageManager.PERMISSION_DENIED) {
600            throw new SecurityException("You need the "
601                    + "android.permission.INSTALL_GRANT_RUNTIME_PERMISSIONS permission "
602                    + "to use the PackageManager.INSTALL_GRANT_RUNTIME_PERMISSIONS flag");
603        }
604
605        // Defensively resize giant app icons
606        if (params.appIcon != null) {
607            final ActivityManager am = (ActivityManager) mContext.getSystemService(
608                    Context.ACTIVITY_SERVICE);
609            final int iconSize = am.getLauncherLargeIconSize();
610            if ((params.appIcon.getWidth() > iconSize * 2)
611                    || (params.appIcon.getHeight() > iconSize * 2)) {
612                params.appIcon = Bitmap.createScaledBitmap(params.appIcon, iconSize, iconSize,
613                        true);
614            }
615        }
616
617        switch (params.mode) {
618            case SessionParams.MODE_FULL_INSTALL:
619            case SessionParams.MODE_INHERIT_EXISTING:
620                break;
621            default:
622                throw new IllegalArgumentException("Invalid install mode: " + params.mode);
623        }
624
625        // If caller requested explicit location, sanity check it, otherwise
626        // resolve the best internal or adopted location.
627        if ((params.installFlags & PackageManager.INSTALL_INTERNAL) != 0) {
628            if (!PackageHelper.fitsOnInternal(mContext, params.sizeBytes)) {
629                throw new IOException("No suitable internal storage available");
630            }
631
632        } else if ((params.installFlags & PackageManager.INSTALL_EXTERNAL) != 0) {
633            if (!PackageHelper.fitsOnExternal(mContext, params.sizeBytes)) {
634                throw new IOException("No suitable external storage available");
635            }
636
637        } else if ((params.installFlags & PackageManager.INSTALL_FORCE_VOLUME_UUID) != 0) {
638            // For now, installs to adopted media are treated as internal from
639            // an install flag point-of-view.
640            params.setInstallFlagsInternal();
641
642        } else {
643            // For now, installs to adopted media are treated as internal from
644            // an install flag point-of-view.
645            params.setInstallFlagsInternal();
646
647            // Resolve best location for install, based on combination of
648            // requested install flags, delta size, and manifest settings.
649            final long ident = Binder.clearCallingIdentity();
650            try {
651                params.volumeUuid = PackageHelper.resolveInstallVolume(mContext,
652                        params.appPackageName, params.installLocation, params.sizeBytes);
653            } finally {
654                Binder.restoreCallingIdentity(ident);
655            }
656        }
657
658        final int sessionId;
659        final PackageInstallerSession session;
660        synchronized (mSessions) {
661            // Sanity check that installer isn't going crazy
662            final int activeCount = getSessionCount(mSessions, callingUid);
663            if (activeCount >= MAX_ACTIVE_SESSIONS) {
664                throw new IllegalStateException(
665                        "Too many active sessions for UID " + callingUid);
666            }
667            final int historicalCount = getSessionCount(mHistoricalSessions, callingUid);
668            if (historicalCount >= MAX_HISTORICAL_SESSIONS) {
669                throw new IllegalStateException(
670                        "Too many historical sessions for UID " + callingUid);
671            }
672
673            final long createdMillis = System.currentTimeMillis();
674            sessionId = allocateSessionIdLocked();
675
676            // We're staging to exactly one location
677            File stageDir = null;
678            String stageCid = null;
679            if ((params.installFlags & PackageManager.INSTALL_INTERNAL) != 0) {
680                final boolean isEphemeral =
681                        (params.installFlags & PackageManager.INSTALL_EPHEMERAL) != 0;
682                stageDir = buildStageDir(params.volumeUuid, sessionId, isEphemeral);
683            } else {
684                stageCid = buildExternalStageCid(sessionId);
685            }
686
687            session = new PackageInstallerSession(mInternalCallback, mContext, mPm,
688                    mInstallThread.getLooper(), sessionId, userId, installerPackageName, callingUid,
689                    params, createdMillis, stageDir, stageCid, false, false);
690            mSessions.put(sessionId, session);
691        }
692
693        mCallbacks.notifySessionCreated(session.sessionId, session.userId);
694        writeSessionsAsync();
695        return sessionId;
696    }
697
698    @Override
699    public void updateSessionAppIcon(int sessionId, Bitmap appIcon) {
700        synchronized (mSessions) {
701            final PackageInstallerSession session = mSessions.get(sessionId);
702            if (session == null || !isCallingUidOwner(session)) {
703                throw new SecurityException("Caller has no access to session " + sessionId);
704            }
705
706            // Defensively resize giant app icons
707            if (appIcon != null) {
708                final ActivityManager am = (ActivityManager) mContext.getSystemService(
709                        Context.ACTIVITY_SERVICE);
710                final int iconSize = am.getLauncherLargeIconSize();
711                if ((appIcon.getWidth() > iconSize * 2)
712                        || (appIcon.getHeight() > iconSize * 2)) {
713                    appIcon = Bitmap.createScaledBitmap(appIcon, iconSize, iconSize, true);
714                }
715            }
716
717            session.params.appIcon = appIcon;
718            session.params.appIconLastModified = -1;
719
720            mInternalCallback.onSessionBadgingChanged(session);
721        }
722    }
723
724    @Override
725    public void updateSessionAppLabel(int sessionId, String appLabel) {
726        synchronized (mSessions) {
727            final PackageInstallerSession session = mSessions.get(sessionId);
728            if (session == null || !isCallingUidOwner(session)) {
729                throw new SecurityException("Caller has no access to session " + sessionId);
730            }
731            session.params.appLabel = appLabel;
732            mInternalCallback.onSessionBadgingChanged(session);
733        }
734    }
735
736    @Override
737    public void abandonSession(int sessionId) {
738        synchronized (mSessions) {
739            final PackageInstallerSession session = mSessions.get(sessionId);
740            if (session == null || !isCallingUidOwner(session)) {
741                throw new SecurityException("Caller has no access to session " + sessionId);
742            }
743            session.abandon();
744        }
745    }
746
747    @Override
748    public IPackageInstallerSession openSession(int sessionId) {
749        try {
750            return openSessionInternal(sessionId);
751        } catch (IOException e) {
752            throw ExceptionUtils.wrap(e);
753        }
754    }
755
756    private IPackageInstallerSession openSessionInternal(int sessionId) throws IOException {
757        synchronized (mSessions) {
758            final PackageInstallerSession session = mSessions.get(sessionId);
759            if (session == null || !isCallingUidOwner(session)) {
760                throw new SecurityException("Caller has no access to session " + sessionId);
761            }
762            session.open();
763            return session;
764        }
765    }
766
767    private int allocateSessionIdLocked() {
768        int n = 0;
769        int sessionId;
770        do {
771            sessionId = mRandom.nextInt(Integer.MAX_VALUE - 1) + 1;
772            if (mSessions.get(sessionId) == null && mHistoricalSessions.get(sessionId) == null
773                    && !mLegacySessions.get(sessionId, false)) {
774                return sessionId;
775            }
776        } while (n++ < 32);
777
778        throw new IllegalStateException("Failed to allocate session ID");
779    }
780
781    private File buildStagingDir(String volumeUuid, boolean isEphemeral) {
782        if (isEphemeral) {
783            return Environment.getDataAppEphemeralDirectory(volumeUuid);
784        }
785        return Environment.getDataAppDirectory(volumeUuid);
786    }
787
788    private File buildStageDir(String volumeUuid, int sessionId, boolean isEphemeral) {
789        final File stagingDir = buildStagingDir(volumeUuid, isEphemeral);
790        return new File(stagingDir, "vmdl" + sessionId + ".tmp");
791    }
792
793    static void prepareStageDir(File stageDir) throws IOException {
794        if (stageDir.exists()) {
795            throw new IOException("Session dir already exists: " + stageDir);
796        }
797
798        try {
799            Os.mkdir(stageDir.getAbsolutePath(), 0755);
800            Os.chmod(stageDir.getAbsolutePath(), 0755);
801        } catch (ErrnoException e) {
802            // This purposefully throws if directory already exists
803            throw new IOException("Failed to prepare session dir: " + stageDir, e);
804        }
805
806        if (!SELinux.restorecon(stageDir)) {
807            throw new IOException("Failed to restorecon session dir: " + stageDir);
808        }
809    }
810
811    private String buildExternalStageCid(int sessionId) {
812        return "smdl" + sessionId + ".tmp";
813    }
814
815    static void prepareExternalStageCid(String stageCid, long sizeBytes) throws IOException {
816        if (PackageHelper.createSdDir(sizeBytes, stageCid, PackageManagerService.getEncryptKey(),
817                Process.SYSTEM_UID, true) == null) {
818            throw new IOException("Failed to create session cid: " + stageCid);
819        }
820    }
821
822    @Override
823    public SessionInfo getSessionInfo(int sessionId) {
824        synchronized (mSessions) {
825            final PackageInstallerSession session = mSessions.get(sessionId);
826            return session != null ? session.generateInfo() : null;
827        }
828    }
829
830    @Override
831    public ParceledListSlice<SessionInfo> getAllSessions(int userId) {
832        mPm.enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "getAllSessions");
833
834        final List<SessionInfo> result = new ArrayList<>();
835        synchronized (mSessions) {
836            for (int i = 0; i < mSessions.size(); i++) {
837                final PackageInstallerSession session = mSessions.valueAt(i);
838                if (session.userId == userId) {
839                    result.add(session.generateInfo());
840                }
841            }
842        }
843        return new ParceledListSlice<>(result);
844    }
845
846    @Override
847    public ParceledListSlice<SessionInfo> getMySessions(String installerPackageName, int userId) {
848        mPm.enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "getMySessions");
849        mAppOps.checkPackage(Binder.getCallingUid(), installerPackageName);
850
851        final List<SessionInfo> result = new ArrayList<>();
852        synchronized (mSessions) {
853            for (int i = 0; i < mSessions.size(); i++) {
854                final PackageInstallerSession session = mSessions.valueAt(i);
855                if (Objects.equals(session.installerPackageName, installerPackageName)
856                        && session.userId == userId) {
857                    result.add(session.generateInfo());
858                }
859            }
860        }
861        return new ParceledListSlice<>(result);
862    }
863
864    @Override
865    public void uninstall(String packageName, String callerPackageName, int flags,
866                IntentSender statusReceiver, int userId) {
867        final int callingUid = Binder.getCallingUid();
868        mPm.enforceCrossUserPermission(callingUid, userId, true, true, "uninstall");
869        if ((callingUid != Process.SHELL_UID) && (callingUid != Process.ROOT_UID)) {
870            mAppOps.checkPackage(callingUid, callerPackageName);
871        }
872
873        // Check whether the caller is device owner, in which case we do it silently.
874        DevicePolicyManager dpm = (DevicePolicyManager) mContext.getSystemService(
875                Context.DEVICE_POLICY_SERVICE);
876        boolean isDeviceOwner = (dpm != null) && dpm.isDeviceOwnerAppOnCallingUser(
877                callerPackageName);
878
879        final PackageDeleteObserverAdapter adapter = new PackageDeleteObserverAdapter(mContext,
880                statusReceiver, packageName, isDeviceOwner, userId);
881        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DELETE_PACKAGES)
882                == PackageManager.PERMISSION_GRANTED) {
883            // Sweet, call straight through!
884            mPm.deletePackage(packageName, adapter.getBinder(), userId, flags);
885        } else if (isDeviceOwner) {
886            // Allow the DeviceOwner to silently delete packages
887            // Need to clear the calling identity to get DELETE_PACKAGES permission
888            long ident = Binder.clearCallingIdentity();
889            try {
890                mPm.deletePackage(packageName, adapter.getBinder(), userId, flags);
891            } finally {
892                Binder.restoreCallingIdentity(ident);
893            }
894        } else {
895            // Take a short detour to confirm with user
896            final Intent intent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE);
897            intent.setData(Uri.fromParts("package", packageName, null));
898            intent.putExtra(PackageInstaller.EXTRA_CALLBACK, adapter.getBinder().asBinder());
899            adapter.onUserActionRequired(intent);
900        }
901    }
902
903    @Override
904    public void setPermissionsResult(int sessionId, boolean accepted) {
905        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES, TAG);
906
907        synchronized (mSessions) {
908            mSessions.get(sessionId).setPermissionsResult(accepted);
909        }
910    }
911
912    @Override
913    public void registerCallback(IPackageInstallerCallback callback, int userId) {
914        mPm.enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "registerCallback");
915        mCallbacks.register(callback, userId);
916    }
917
918    @Override
919    public void unregisterCallback(IPackageInstallerCallback callback) {
920        mCallbacks.unregister(callback);
921    }
922
923    private static int getSessionCount(SparseArray<PackageInstallerSession> sessions,
924            int installerUid) {
925        int count = 0;
926        final int size = sessions.size();
927        for (int i = 0; i < size; i++) {
928            final PackageInstallerSession session = sessions.valueAt(i);
929            if (session.installerUid == installerUid) {
930                count++;
931            }
932        }
933        return count;
934    }
935
936    private boolean isCallingUidOwner(PackageInstallerSession session) {
937        final int callingUid = Binder.getCallingUid();
938        if (callingUid == Process.ROOT_UID) {
939            return true;
940        } else {
941            return (session != null) && (callingUid == session.installerUid);
942        }
943    }
944
945    static class PackageDeleteObserverAdapter extends PackageDeleteObserver {
946        private final Context mContext;
947        private final IntentSender mTarget;
948        private final String mPackageName;
949        private final Notification mNotification;
950
951        public PackageDeleteObserverAdapter(Context context, IntentSender target,
952                String packageName, boolean showNotification, int userId) {
953            mContext = context;
954            mTarget = target;
955            mPackageName = packageName;
956            if (showNotification) {
957                mNotification = buildSuccessNotification(mContext,
958                        mContext.getResources().getString(R.string.package_deleted_device_owner),
959                        packageName,
960                        userId);
961            } else {
962                mNotification = null;
963            }
964        }
965
966        @Override
967        public void onUserActionRequired(Intent intent) {
968            final Intent fillIn = new Intent();
969            fillIn.putExtra(PackageInstaller.EXTRA_PACKAGE_NAME, mPackageName);
970            fillIn.putExtra(PackageInstaller.EXTRA_STATUS,
971                    PackageInstaller.STATUS_PENDING_USER_ACTION);
972            fillIn.putExtra(Intent.EXTRA_INTENT, intent);
973            try {
974                mTarget.sendIntent(mContext, 0, fillIn, null, null);
975            } catch (SendIntentException ignored) {
976            }
977        }
978
979        @Override
980        public void onPackageDeleted(String basePackageName, int returnCode, String msg) {
981            if (PackageManager.DELETE_SUCCEEDED == returnCode && mNotification != null) {
982                NotificationManager notificationManager = (NotificationManager)
983                        mContext.getSystemService(Context.NOTIFICATION_SERVICE);
984                notificationManager.notify(basePackageName, 0, mNotification);
985            }
986            final Intent fillIn = new Intent();
987            fillIn.putExtra(PackageInstaller.EXTRA_PACKAGE_NAME, mPackageName);
988            fillIn.putExtra(PackageInstaller.EXTRA_STATUS,
989                    PackageManager.deleteStatusToPublicStatus(returnCode));
990            fillIn.putExtra(PackageInstaller.EXTRA_STATUS_MESSAGE,
991                    PackageManager.deleteStatusToString(returnCode, msg));
992            fillIn.putExtra(PackageInstaller.EXTRA_LEGACY_STATUS, returnCode);
993            try {
994                mTarget.sendIntent(mContext, 0, fillIn, null, null);
995            } catch (SendIntentException ignored) {
996            }
997        }
998    }
999
1000    static class PackageInstallObserverAdapter extends PackageInstallObserver {
1001        private final Context mContext;
1002        private final IntentSender mTarget;
1003        private final int mSessionId;
1004        private final boolean mShowNotification;
1005        private final int mUserId;
1006
1007        public PackageInstallObserverAdapter(Context context, IntentSender target, int sessionId,
1008                boolean showNotification, int userId) {
1009            mContext = context;
1010            mTarget = target;
1011            mSessionId = sessionId;
1012            mShowNotification = showNotification;
1013            mUserId = userId;
1014        }
1015
1016        @Override
1017        public void onUserActionRequired(Intent intent) {
1018            final Intent fillIn = new Intent();
1019            fillIn.putExtra(PackageInstaller.EXTRA_SESSION_ID, mSessionId);
1020            fillIn.putExtra(PackageInstaller.EXTRA_STATUS,
1021                    PackageInstaller.STATUS_PENDING_USER_ACTION);
1022            fillIn.putExtra(Intent.EXTRA_INTENT, intent);
1023            try {
1024                mTarget.sendIntent(mContext, 0, fillIn, null, null);
1025            } catch (SendIntentException ignored) {
1026            }
1027        }
1028
1029        @Override
1030        public void onPackageInstalled(String basePackageName, int returnCode, String msg,
1031                Bundle extras) {
1032            if (PackageManager.INSTALL_SUCCEEDED == returnCode && mShowNotification) {
1033                boolean update = (extras != null) && extras.getBoolean(Intent.EXTRA_REPLACING);
1034                Notification notification = buildSuccessNotification(mContext,
1035                        mContext.getResources()
1036                                .getString(update ? R.string.package_updated_device_owner :
1037                                        R.string.package_installed_device_owner),
1038                        basePackageName,
1039                        mUserId);
1040                if (notification != null) {
1041                    NotificationManager notificationManager = (NotificationManager)
1042                            mContext.getSystemService(Context.NOTIFICATION_SERVICE);
1043                    notificationManager.notify(basePackageName, 0, notification);
1044                }
1045            }
1046            final Intent fillIn = new Intent();
1047            fillIn.putExtra(PackageInstaller.EXTRA_PACKAGE_NAME, basePackageName);
1048            fillIn.putExtra(PackageInstaller.EXTRA_SESSION_ID, mSessionId);
1049            fillIn.putExtra(PackageInstaller.EXTRA_STATUS,
1050                    PackageManager.installStatusToPublicStatus(returnCode));
1051            fillIn.putExtra(PackageInstaller.EXTRA_STATUS_MESSAGE,
1052                    PackageManager.installStatusToString(returnCode, msg));
1053            fillIn.putExtra(PackageInstaller.EXTRA_LEGACY_STATUS, returnCode);
1054            if (extras != null) {
1055                final String existing = extras.getString(
1056                        PackageManager.EXTRA_FAILURE_EXISTING_PACKAGE);
1057                if (!TextUtils.isEmpty(existing)) {
1058                    fillIn.putExtra(PackageInstaller.EXTRA_OTHER_PACKAGE_NAME, existing);
1059                }
1060            }
1061            try {
1062                mTarget.sendIntent(mContext, 0, fillIn, null, null);
1063            } catch (SendIntentException ignored) {
1064            }
1065        }
1066    }
1067
1068    /**
1069     * Build a notification for package installation / deletion by device owners that is shown if
1070     * the operation succeeds.
1071     */
1072    private static Notification buildSuccessNotification(Context context, String contentText,
1073            String basePackageName, int userId) {
1074        PackageInfo packageInfo = null;
1075        try {
1076            packageInfo = AppGlobals.getPackageManager().getPackageInfo(
1077                    basePackageName, 0, userId);
1078        } catch (RemoteException ignored) {
1079        }
1080        if (packageInfo == null || packageInfo.applicationInfo == null) {
1081            Slog.w(TAG, "Notification not built for package: " + basePackageName);
1082            return null;
1083        }
1084        PackageManager pm = context.getPackageManager();
1085        Bitmap packageIcon = ImageUtils.buildScaledBitmap(
1086                packageInfo.applicationInfo.loadIcon(pm),
1087                context.getResources().getDimensionPixelSize(
1088                        android.R.dimen.notification_large_icon_width),
1089                context.getResources().getDimensionPixelSize(
1090                        android.R.dimen.notification_large_icon_height));
1091        CharSequence packageLabel = packageInfo.applicationInfo.loadLabel(pm);
1092        return new Notification.Builder(context)
1093                .setSmallIcon(R.drawable.ic_check_circle_24px)
1094                .setColor(context.getResources().getColor(
1095                        R.color.system_notification_accent_color))
1096                .setContentTitle(packageLabel)
1097                .setContentText(contentText)
1098                .setStyle(new Notification.BigTextStyle().bigText(contentText))
1099                .setLargeIcon(packageIcon)
1100                .build();
1101    }
1102
1103    public static <E> ArraySet<E> newArraySet(E... elements) {
1104        final ArraySet<E> set = new ArraySet<E>();
1105        if (elements != null) {
1106            set.ensureCapacity(elements.length);
1107            Collections.addAll(set, elements);
1108        }
1109        return set;
1110    }
1111
1112    private static class Callbacks extends Handler {
1113        private static final int MSG_SESSION_CREATED = 1;
1114        private static final int MSG_SESSION_BADGING_CHANGED = 2;
1115        private static final int MSG_SESSION_ACTIVE_CHANGED = 3;
1116        private static final int MSG_SESSION_PROGRESS_CHANGED = 4;
1117        private static final int MSG_SESSION_FINISHED = 5;
1118
1119        private final RemoteCallbackList<IPackageInstallerCallback>
1120                mCallbacks = new RemoteCallbackList<>();
1121
1122        public Callbacks(Looper looper) {
1123            super(looper);
1124        }
1125
1126        public void register(IPackageInstallerCallback callback, int userId) {
1127            mCallbacks.register(callback, new UserHandle(userId));
1128        }
1129
1130        public void unregister(IPackageInstallerCallback callback) {
1131            mCallbacks.unregister(callback);
1132        }
1133
1134        @Override
1135        public void handleMessage(Message msg) {
1136            final int userId = msg.arg2;
1137            final int n = mCallbacks.beginBroadcast();
1138            for (int i = 0; i < n; i++) {
1139                final IPackageInstallerCallback callback = mCallbacks.getBroadcastItem(i);
1140                final UserHandle user = (UserHandle) mCallbacks.getBroadcastCookie(i);
1141                // TODO: dispatch notifications for slave profiles
1142                if (userId == user.getIdentifier()) {
1143                    try {
1144                        invokeCallback(callback, msg);
1145                    } catch (RemoteException ignored) {
1146                    }
1147                }
1148            }
1149            mCallbacks.finishBroadcast();
1150        }
1151
1152        private void invokeCallback(IPackageInstallerCallback callback, Message msg)
1153                throws RemoteException {
1154            final int sessionId = msg.arg1;
1155            switch (msg.what) {
1156                case MSG_SESSION_CREATED:
1157                    callback.onSessionCreated(sessionId);
1158                    break;
1159                case MSG_SESSION_BADGING_CHANGED:
1160                    callback.onSessionBadgingChanged(sessionId);
1161                    break;
1162                case MSG_SESSION_ACTIVE_CHANGED:
1163                    callback.onSessionActiveChanged(sessionId, (boolean) msg.obj);
1164                    break;
1165                case MSG_SESSION_PROGRESS_CHANGED:
1166                    callback.onSessionProgressChanged(sessionId, (float) msg.obj);
1167                    break;
1168                case MSG_SESSION_FINISHED:
1169                    callback.onSessionFinished(sessionId, (boolean) msg.obj);
1170                    break;
1171            }
1172        }
1173
1174        private void notifySessionCreated(int sessionId, int userId) {
1175            obtainMessage(MSG_SESSION_CREATED, sessionId, userId).sendToTarget();
1176        }
1177
1178        private void notifySessionBadgingChanged(int sessionId, int userId) {
1179            obtainMessage(MSG_SESSION_BADGING_CHANGED, sessionId, userId).sendToTarget();
1180        }
1181
1182        private void notifySessionActiveChanged(int sessionId, int userId, boolean active) {
1183            obtainMessage(MSG_SESSION_ACTIVE_CHANGED, sessionId, userId, active).sendToTarget();
1184        }
1185
1186        private void notifySessionProgressChanged(int sessionId, int userId, float progress) {
1187            obtainMessage(MSG_SESSION_PROGRESS_CHANGED, sessionId, userId, progress).sendToTarget();
1188        }
1189
1190        public void notifySessionFinished(int sessionId, int userId, boolean success) {
1191            obtainMessage(MSG_SESSION_FINISHED, sessionId, userId, success).sendToTarget();
1192        }
1193    }
1194
1195    void dump(IndentingPrintWriter pw) {
1196        synchronized (mSessions) {
1197            pw.println("Active install sessions:");
1198            pw.increaseIndent();
1199            int N = mSessions.size();
1200            for (int i = 0; i < N; i++) {
1201                final PackageInstallerSession session = mSessions.valueAt(i);
1202                session.dump(pw);
1203                pw.println();
1204            }
1205            pw.println();
1206            pw.decreaseIndent();
1207
1208            pw.println("Historical install sessions:");
1209            pw.increaseIndent();
1210            N = mHistoricalSessions.size();
1211            for (int i = 0; i < N; i++) {
1212                final PackageInstallerSession session = mHistoricalSessions.valueAt(i);
1213                session.dump(pw);
1214                pw.println();
1215            }
1216            pw.println();
1217            pw.decreaseIndent();
1218
1219            pw.println("Legacy install sessions:");
1220            pw.increaseIndent();
1221            pw.println(mLegacySessions.toString());
1222            pw.decreaseIndent();
1223        }
1224    }
1225
1226    class InternalCallback {
1227        public void onSessionBadgingChanged(PackageInstallerSession session) {
1228            mCallbacks.notifySessionBadgingChanged(session.sessionId, session.userId);
1229            writeSessionsAsync();
1230        }
1231
1232        public void onSessionActiveChanged(PackageInstallerSession session, boolean active) {
1233            mCallbacks.notifySessionActiveChanged(session.sessionId, session.userId, active);
1234        }
1235
1236        public void onSessionProgressChanged(PackageInstallerSession session, float progress) {
1237            mCallbacks.notifySessionProgressChanged(session.sessionId, session.userId, progress);
1238        }
1239
1240        public void onSessionFinished(final PackageInstallerSession session, boolean success) {
1241            mCallbacks.notifySessionFinished(session.sessionId, session.userId, success);
1242
1243            mInstallHandler.post(new Runnable() {
1244                @Override
1245                public void run() {
1246                    synchronized (mSessions) {
1247                        mSessions.remove(session.sessionId);
1248                        mHistoricalSessions.put(session.sessionId, session);
1249
1250                        final File appIconFile = buildAppIconFile(session.sessionId);
1251                        if (appIconFile.exists()) {
1252                            appIconFile.delete();
1253                        }
1254
1255                        writeSessionsLocked();
1256                    }
1257                }
1258            });
1259        }
1260
1261        public void onSessionPrepared(PackageInstallerSession session) {
1262            // We prepared the destination to write into; we want to persist
1263            // this, but it's not critical enough to block for.
1264            writeSessionsAsync();
1265        }
1266
1267        public void onSessionSealedBlocking(PackageInstallerSession session) {
1268            // It's very important that we block until we've recorded the
1269            // session as being sealed, since we never want to allow mutation
1270            // after sealing.
1271            synchronized (mSessions) {
1272                writeSessionsLocked();
1273            }
1274        }
1275    }
1276}
1277