Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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 | |
| 17 | package com.android.server.pm; |
| 18 | |
| 19 | import android.annotation.NonNull; |
| 20 | import android.annotation.Nullable; |
| 21 | import android.annotation.UserIdInt; |
| 22 | import android.content.Intent; |
| 23 | import android.content.pm.InstantAppInfo; |
| 24 | import android.content.pm.PackageParser; |
| 25 | import android.graphics.Bitmap; |
| 26 | import android.graphics.BitmapFactory; |
| 27 | import android.graphics.Canvas; |
| 28 | import android.graphics.drawable.BitmapDrawable; |
| 29 | import android.graphics.drawable.Drawable; |
| 30 | import android.os.Binder; |
| 31 | import android.os.Environment; |
| 32 | import android.os.Handler; |
| 33 | import android.os.Looper; |
| 34 | import android.os.Message; |
| 35 | import android.provider.Settings; |
| 36 | import android.util.ArrayMap; |
| 37 | import android.util.AtomicFile; |
Chad Brubaker | 0d277a7 | 2017-04-12 16:56:53 -0700 | [diff] [blame] | 38 | import android.util.ByteStringUtils; |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 39 | import android.util.PackageUtils; |
| 40 | import android.util.Slog; |
| 41 | import android.util.SparseArray; |
| 42 | import android.util.SparseBooleanArray; |
| 43 | import android.util.Xml; |
| 44 | import com.android.internal.annotations.GuardedBy; |
| 45 | import com.android.internal.os.BackgroundThread; |
Svet Ganov | ee2028c | 2017-02-17 17:23:29 -0800 | [diff] [blame] | 46 | import com.android.internal.os.SomeArgs; |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 47 | import com.android.internal.util.ArrayUtils; |
| 48 | import com.android.internal.util.XmlUtils; |
| 49 | import libcore.io.IoUtils; |
| 50 | import org.xmlpull.v1.XmlPullParser; |
| 51 | import org.xmlpull.v1.XmlPullParserException; |
| 52 | import org.xmlpull.v1.XmlSerializer; |
| 53 | |
| 54 | import java.io.File; |
| 55 | import java.io.FileInputStream; |
| 56 | import java.io.FileNotFoundException; |
| 57 | import java.io.FileOutputStream; |
| 58 | import java.io.IOException; |
| 59 | import java.nio.charset.StandardCharsets; |
Chad Brubaker | 0d277a7 | 2017-04-12 16:56:53 -0700 | [diff] [blame] | 60 | import java.security.SecureRandom; |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 61 | import java.util.ArrayList; |
| 62 | import java.util.List; |
Chad Brubaker | 0d277a7 | 2017-04-12 16:56:53 -0700 | [diff] [blame] | 63 | import java.util.Locale; |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 64 | import java.util.Set; |
| 65 | import java.util.function.Predicate; |
| 66 | |
| 67 | /** |
| 68 | * This class is a part of the package manager service that is responsible |
| 69 | * for managing data associated with instant apps such as cached uninstalled |
| 70 | * instant apps and instant apps' cookies. In addition it is responsible for |
| 71 | * pruning installed instant apps and meta-data for uninstalled instant apps |
| 72 | * when free space is needed. |
| 73 | */ |
| 74 | class InstantAppRegistry { |
| 75 | private static final boolean DEBUG = false; |
| 76 | |
| 77 | private static final String LOG_TAG = "InstantAppRegistry"; |
| 78 | |
| 79 | private static final long DEFAULT_UNINSTALLED_INSTANT_APP_CACHE_DURATION_MILLIS = |
| 80 | DEBUG ? 60 * 1000L /* one min */ : 6 * 30 * 24 * 60 * 60 * 1000L; /* six months */ |
| 81 | |
| 82 | private static final String INSTANT_APPS_FOLDER = "instant"; |
| 83 | private static final String INSTANT_APP_ICON_FILE = "icon.png"; |
| 84 | private static final String INSTANT_APP_COOKIE_FILE_PREFIX = "cookie_"; |
| 85 | private static final String INSTANT_APP_COOKIE_FILE_SIFFIX = ".dat"; |
| 86 | private static final String INSTANT_APP_METADATA_FILE = "metadata.xml"; |
Chad Brubaker | 0d277a7 | 2017-04-12 16:56:53 -0700 | [diff] [blame] | 87 | private static final String INSTANT_APP_ANDROID_ID_FILE = "android_id"; |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 88 | |
| 89 | private static final String TAG_PACKAGE = "package"; |
| 90 | private static final String TAG_PERMISSIONS = "permissions"; |
| 91 | private static final String TAG_PERMISSION = "permission"; |
| 92 | |
| 93 | private static final String ATTR_LABEL = "label"; |
| 94 | private static final String ATTR_NAME = "name"; |
| 95 | private static final String ATTR_GRANTED = "granted"; |
| 96 | |
| 97 | private final PackageManagerService mService; |
| 98 | private final CookiePersistence mCookiePersistence; |
| 99 | |
| 100 | /** State for uninstalled instant apps */ |
| 101 | @GuardedBy("mService.mPackages") |
| 102 | private SparseArray<List<UninstalledInstantAppState>> mUninstalledInstantApps; |
| 103 | |
| 104 | /** |
| 105 | * Automatic grants for access to instant app metadata. |
| 106 | * The key is the target application UID. |
| 107 | * The value is a set of instant app UIDs. |
| 108 | * UserID -> TargetAppId -> InstantAppId |
| 109 | */ |
| 110 | @GuardedBy("mService.mPackages") |
| 111 | private SparseArray<SparseArray<SparseBooleanArray>> mInstantGrants; |
| 112 | |
| 113 | /** The set of all installed instant apps. UserID -> AppID */ |
| 114 | @GuardedBy("mService.mPackages") |
| 115 | private SparseArray<SparseBooleanArray> mInstalledInstantAppUids; |
| 116 | |
| 117 | public InstantAppRegistry(PackageManagerService service) { |
| 118 | mService = service; |
| 119 | mCookiePersistence = new CookiePersistence(BackgroundThread.getHandler().getLooper()); |
| 120 | } |
| 121 | |
| 122 | public byte[] getInstantAppCookieLPw(@NonNull String packageName, |
Svet Ganov | ee2028c | 2017-02-17 17:23:29 -0800 | [diff] [blame] | 123 | @UserIdInt int userId) { |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 124 | // Only installed packages can get their own cookie |
| 125 | PackageParser.Package pkg = mService.mPackages.get(packageName); |
| 126 | if (pkg == null) { |
| 127 | return null; |
| 128 | } |
| 129 | |
| 130 | byte[] pendingCookie = mCookiePersistence.getPendingPersistCookieLPr(pkg, userId); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 131 | if (pendingCookie != null) { |
| 132 | return pendingCookie; |
| 133 | } |
| 134 | File cookieFile = peekInstantCookieFile(packageName, userId); |
| 135 | if (cookieFile != null && cookieFile.exists()) { |
| 136 | try { |
| 137 | return IoUtils.readFileAsByteArray(cookieFile.toString()); |
| 138 | } catch (IOException e) { |
| 139 | Slog.w(LOG_TAG, "Error reading cookie file: " + cookieFile); |
| 140 | } |
| 141 | } |
| 142 | return null; |
| 143 | } |
| 144 | |
| 145 | public boolean setInstantAppCookieLPw(@NonNull String packageName, |
Svet Ganov | ee2028c | 2017-02-17 17:23:29 -0800 | [diff] [blame] | 146 | @Nullable byte[] cookie, @UserIdInt int userId) { |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 147 | if (cookie != null && cookie.length > 0) { |
| 148 | final int maxCookieSize = mService.mContext.getPackageManager() |
Svetoslav Ganov | 345ffa5 | 2017-04-18 16:08:41 -0700 | [diff] [blame] | 149 | .getInstantAppCookieMaxBytes(); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 150 | if (cookie.length > maxCookieSize) { |
| 151 | Slog.e(LOG_TAG, "Instant app cookie for package " + packageName + " size " |
| 152 | + cookie.length + " bytes while max size is " + maxCookieSize); |
| 153 | return false; |
| 154 | } |
| 155 | } |
| 156 | |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 157 | // Only an installed package can set its own cookie |
Svet Ganov | ee2028c | 2017-02-17 17:23:29 -0800 | [diff] [blame] | 158 | PackageParser.Package pkg = mService.mPackages.get(packageName); |
| 159 | if (pkg == null) { |
| 160 | return false; |
| 161 | } |
| 162 | |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 163 | mCookiePersistence.schedulePersistLPw(userId, pkg, cookie); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 164 | return true; |
| 165 | } |
| 166 | |
| 167 | private void persistInstantApplicationCookie(@Nullable byte[] cookie, |
Svet Ganov | ee2028c | 2017-02-17 17:23:29 -0800 | [diff] [blame] | 168 | @NonNull String packageName, @NonNull File cookieFile, @UserIdInt int userId) { |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 169 | synchronized (mService.mPackages) { |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 170 | File appDir = getInstantApplicationDir(packageName, userId); |
| 171 | if (!appDir.exists() && !appDir.mkdirs()) { |
| 172 | Slog.e(LOG_TAG, "Cannot create instant app cookie directory"); |
| 173 | return; |
| 174 | } |
| 175 | |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 176 | if (cookieFile.exists() && !cookieFile.delete()) { |
| 177 | Slog.e(LOG_TAG, "Cannot delete instant app cookie file"); |
| 178 | } |
| 179 | |
| 180 | // No cookie or an empty one means delete - done |
| 181 | if (cookie == null || cookie.length <= 0) { |
| 182 | return; |
| 183 | } |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 184 | } |
| 185 | try (FileOutputStream fos = new FileOutputStream(cookieFile)) { |
| 186 | fos.write(cookie, 0, cookie.length); |
| 187 | } catch (IOException e) { |
| 188 | Slog.e(LOG_TAG, "Error writing instant app cookie file: " + cookieFile, e); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 189 | } |
| 190 | } |
| 191 | |
| 192 | public Bitmap getInstantAppIconLPw(@NonNull String packageName, |
| 193 | @UserIdInt int userId) { |
| 194 | File iconFile = new File(getInstantApplicationDir(packageName, userId), |
| 195 | INSTANT_APP_ICON_FILE); |
| 196 | if (iconFile.exists()) { |
| 197 | return BitmapFactory.decodeFile(iconFile.toString()); |
| 198 | } |
| 199 | return null; |
| 200 | } |
| 201 | |
Chad Brubaker | 0d277a7 | 2017-04-12 16:56:53 -0700 | [diff] [blame] | 202 | public String getInstantAppAndroidIdLPw(@NonNull String packageName, |
| 203 | @UserIdInt int userId) { |
| 204 | File idFile = new File(getInstantApplicationDir(packageName, userId), |
| 205 | INSTANT_APP_ANDROID_ID_FILE); |
| 206 | if (idFile.exists()) { |
| 207 | try { |
| 208 | return IoUtils.readFileAsString(idFile.getAbsolutePath()); |
| 209 | } catch (IOException e) { |
| 210 | Slog.e(LOG_TAG, "Failed to read instant app android id file: " + idFile, e); |
| 211 | } |
| 212 | } |
| 213 | return generateInstantAppAndroidIdLPw(packageName, userId); |
| 214 | } |
| 215 | |
| 216 | private String generateInstantAppAndroidIdLPw(@NonNull String packageName, |
| 217 | @UserIdInt int userId) { |
| 218 | byte[] randomBytes = new byte[8]; |
| 219 | new SecureRandom().nextBytes(randomBytes); |
| 220 | String id = ByteStringUtils.toHexString(randomBytes).toLowerCase(Locale.US); |
Chad Brubaker | 64c8b79 | 2017-04-28 11:02:26 -0700 | [diff] [blame] | 221 | File appDir = getInstantApplicationDir(packageName, userId); |
| 222 | if (!appDir.exists() && !appDir.mkdirs()) { |
| 223 | Slog.e(LOG_TAG, "Cannot create instant app cookie directory"); |
| 224 | return id; |
| 225 | } |
Chad Brubaker | 0d277a7 | 2017-04-12 16:56:53 -0700 | [diff] [blame] | 226 | File idFile = new File(getInstantApplicationDir(packageName, userId), |
| 227 | INSTANT_APP_ANDROID_ID_FILE); |
| 228 | try (FileOutputStream fos = new FileOutputStream(idFile)) { |
| 229 | fos.write(id.getBytes()); |
| 230 | } catch (IOException e) { |
| 231 | Slog.e(LOG_TAG, "Error writing instant app android id file: " + idFile, e); |
| 232 | } |
| 233 | return id; |
| 234 | |
| 235 | } |
| 236 | |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 237 | public @Nullable List<InstantAppInfo> getInstantAppsLPr(@UserIdInt int userId) { |
| 238 | List<InstantAppInfo> installedApps = getInstalledInstantApplicationsLPr(userId); |
| 239 | List<InstantAppInfo> uninstalledApps = getUninstalledInstantApplicationsLPr(userId); |
| 240 | if (installedApps != null) { |
| 241 | if (uninstalledApps != null) { |
| 242 | installedApps.addAll(uninstalledApps); |
| 243 | } |
| 244 | return installedApps; |
| 245 | } |
| 246 | return uninstalledApps; |
| 247 | } |
| 248 | |
| 249 | public void onPackageInstalledLPw(@NonNull PackageParser.Package pkg, @NonNull int[] userIds) { |
| 250 | PackageSetting ps = (PackageSetting) pkg.mExtras; |
| 251 | if (ps == null) { |
| 252 | return; |
| 253 | } |
| 254 | |
| 255 | for (int userId : userIds) { |
| 256 | // Ignore not installed apps |
| 257 | if (mService.mPackages.get(pkg.packageName) == null || !ps.getInstalled(userId)) { |
| 258 | continue; |
| 259 | } |
| 260 | |
| 261 | // Propagate permissions before removing any state |
| 262 | propagateInstantAppPermissionsIfNeeded(pkg.packageName, userId); |
| 263 | |
| 264 | // Track instant apps |
Todd Kennedy | be0b889 | 2017-02-15 14:13:52 -0800 | [diff] [blame] | 265 | if (ps.getInstantApp(userId)) { |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 266 | addInstantAppLPw(userId, ps.appId); |
| 267 | } |
| 268 | |
| 269 | // Remove the in-memory state |
| 270 | removeUninstalledInstantAppStateLPw((UninstalledInstantAppState state) -> |
| 271 | state.mInstantAppInfo.getPackageName().equals(pkg.packageName), |
| 272 | userId); |
| 273 | |
| 274 | // Remove the on-disk state except the cookie |
| 275 | File instantAppDir = getInstantApplicationDir(pkg.packageName, userId); |
| 276 | new File(instantAppDir, INSTANT_APP_METADATA_FILE).delete(); |
| 277 | new File(instantAppDir, INSTANT_APP_ICON_FILE).delete(); |
| 278 | |
| 279 | // If app signature changed - wipe the cookie |
| 280 | File currentCookieFile = peekInstantCookieFile(pkg.packageName, userId); |
| 281 | if (currentCookieFile == null) { |
| 282 | continue; |
| 283 | } |
| 284 | File expectedCookeFile = computeInstantCookieFile(pkg, userId); |
| 285 | if (!currentCookieFile.equals(expectedCookeFile)) { |
| 286 | Slog.i(LOG_TAG, "Signature for package " + pkg.packageName |
| 287 | + " changed - dropping cookie"); |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 288 | // Make sure a pending write for the old signed app is cancelled |
| 289 | mCookiePersistence.cancelPendingPersistLPw(pkg, userId); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 290 | currentCookieFile.delete(); |
| 291 | } |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | public void onPackageUninstalledLPw(@NonNull PackageParser.Package pkg, |
| 296 | @NonNull int[] userIds) { |
| 297 | PackageSetting ps = (PackageSetting) pkg.mExtras; |
| 298 | if (ps == null) { |
| 299 | return; |
| 300 | } |
| 301 | |
| 302 | for (int userId : userIds) { |
| 303 | if (mService.mPackages.get(pkg.packageName) != null && ps.getInstalled(userId)) { |
| 304 | continue; |
| 305 | } |
| 306 | |
Todd Kennedy | be0b889 | 2017-02-15 14:13:52 -0800 | [diff] [blame] | 307 | if (ps.getInstantApp(userId)) { |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 308 | // Add a record for an uninstalled instant app |
| 309 | addUninstalledInstantAppLPw(pkg, userId); |
| 310 | removeInstantAppLPw(userId, ps.appId); |
| 311 | } else { |
| 312 | // Deleting an app prunes all instant state such as cookie |
| 313 | deleteDir(getInstantApplicationDir(pkg.packageName, userId)); |
Svetoslav Ganov | 8aa379e | 2017-04-04 18:12:27 -0700 | [diff] [blame] | 314 | mCookiePersistence.cancelPendingPersistLPw(pkg, userId); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 315 | removeAppLPw(userId, ps.appId); |
| 316 | } |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | public void onUserRemovedLPw(int userId) { |
| 321 | if (mUninstalledInstantApps != null) { |
| 322 | mUninstalledInstantApps.remove(userId); |
| 323 | if (mUninstalledInstantApps.size() <= 0) { |
| 324 | mUninstalledInstantApps = null; |
| 325 | } |
| 326 | } |
| 327 | if (mInstalledInstantAppUids != null) { |
| 328 | mInstalledInstantAppUids.remove(userId); |
| 329 | if (mInstalledInstantAppUids.size() <= 0) { |
| 330 | mInstalledInstantAppUids = null; |
| 331 | } |
| 332 | } |
| 333 | if (mInstantGrants != null) { |
| 334 | mInstantGrants.remove(userId); |
| 335 | if (mInstantGrants.size() <= 0) { |
| 336 | mInstantGrants = null; |
| 337 | } |
| 338 | } |
| 339 | deleteDir(getInstantApplicationsDir(userId)); |
| 340 | } |
| 341 | |
| 342 | public boolean isInstantAccessGranted(@UserIdInt int userId, int targetAppId, |
| 343 | int instantAppId) { |
| 344 | if (mInstantGrants == null) { |
| 345 | return false; |
| 346 | } |
| 347 | final SparseArray<SparseBooleanArray> targetAppList = mInstantGrants.get(userId); |
| 348 | if (targetAppList == null) { |
| 349 | return false; |
| 350 | } |
| 351 | final SparseBooleanArray instantGrantList = targetAppList.get(targetAppId); |
| 352 | if (instantGrantList == null) { |
| 353 | return false; |
| 354 | } |
| 355 | return instantGrantList.get(instantAppId); |
| 356 | } |
| 357 | |
| 358 | public void grantInstantAccessLPw(@UserIdInt int userId, @Nullable Intent intent, |
| 359 | int targetAppId, int instantAppId) { |
| 360 | if (mInstalledInstantAppUids == null) { |
| 361 | return; // no instant apps installed; no need to grant |
| 362 | } |
| 363 | SparseBooleanArray instantAppList = mInstalledInstantAppUids.get(userId); |
| 364 | if (instantAppList == null || !instantAppList.get(instantAppId)) { |
| 365 | return; // instant app id isn't installed; no need to grant |
| 366 | } |
| 367 | if (instantAppList.get(targetAppId)) { |
| 368 | return; // target app id is an instant app; no need to grant |
| 369 | } |
| 370 | if (intent != null && Intent.ACTION_VIEW.equals(intent.getAction())) { |
| 371 | final Set<String> categories = intent.getCategories(); |
| 372 | if (categories != null && categories.contains(Intent.CATEGORY_BROWSABLE)) { |
| 373 | return; // launched via VIEW/BROWSABLE intent; no need to grant |
| 374 | } |
| 375 | } |
| 376 | if (mInstantGrants == null) { |
| 377 | mInstantGrants = new SparseArray<>(); |
| 378 | } |
| 379 | SparseArray<SparseBooleanArray> targetAppList = mInstantGrants.get(userId); |
| 380 | if (targetAppList == null) { |
| 381 | targetAppList = new SparseArray<>(); |
| 382 | mInstantGrants.put(userId, targetAppList); |
| 383 | } |
| 384 | SparseBooleanArray instantGrantList = targetAppList.get(targetAppId); |
| 385 | if (instantGrantList == null) { |
| 386 | instantGrantList = new SparseBooleanArray(); |
| 387 | targetAppList.put(targetAppId, instantGrantList); |
| 388 | } |
| 389 | instantGrantList.put(instantAppId, true /*granted*/); |
| 390 | } |
| 391 | |
| 392 | public void addInstantAppLPw(@UserIdInt int userId, int instantAppId) { |
| 393 | if (mInstalledInstantAppUids == null) { |
| 394 | mInstalledInstantAppUids = new SparseArray<>(); |
| 395 | } |
| 396 | SparseBooleanArray instantAppList = mInstalledInstantAppUids.get(userId); |
| 397 | if (instantAppList == null) { |
| 398 | instantAppList = new SparseBooleanArray(); |
| 399 | mInstalledInstantAppUids.put(userId, instantAppList); |
| 400 | } |
| 401 | instantAppList.put(instantAppId, true /*installed*/); |
| 402 | } |
| 403 | |
| 404 | private void removeInstantAppLPw(@UserIdInt int userId, int instantAppId) { |
| 405 | // remove from the installed list |
| 406 | if (mInstalledInstantAppUids == null) { |
| 407 | return; // no instant apps on the system |
| 408 | } |
| 409 | final SparseBooleanArray instantAppList = mInstalledInstantAppUids.get(userId); |
| 410 | if (instantAppList == null) { |
| 411 | return; |
| 412 | } |
| 413 | |
| 414 | instantAppList.delete(instantAppId); |
| 415 | |
| 416 | // remove any grants |
| 417 | if (mInstantGrants == null) { |
| 418 | return; // no grants on the system |
| 419 | } |
| 420 | final SparseArray<SparseBooleanArray> targetAppList = mInstantGrants.get(userId); |
| 421 | if (targetAppList == null) { |
| 422 | return; // no grants for this user |
| 423 | } |
| 424 | for (int i = targetAppList.size() - 1; i >= 0; --i) { |
| 425 | targetAppList.valueAt(i).delete(instantAppId); |
| 426 | } |
| 427 | } |
| 428 | |
| 429 | private void removeAppLPw(@UserIdInt int userId, int targetAppId) { |
| 430 | // remove from the installed list |
| 431 | if (mInstantGrants == null) { |
| 432 | return; // no grants on the system |
| 433 | } |
| 434 | final SparseArray<SparseBooleanArray> targetAppList = mInstantGrants.get(userId); |
| 435 | if (targetAppList == null) { |
| 436 | return; // no grants for this user |
| 437 | } |
| 438 | targetAppList.delete(targetAppId); |
| 439 | } |
| 440 | |
| 441 | private void addUninstalledInstantAppLPw(@NonNull PackageParser.Package pkg, |
| 442 | @UserIdInt int userId) { |
| 443 | InstantAppInfo uninstalledApp = createInstantAppInfoForPackage( |
| 444 | pkg, userId, false); |
| 445 | if (uninstalledApp == null) { |
| 446 | return; |
| 447 | } |
| 448 | if (mUninstalledInstantApps == null) { |
| 449 | mUninstalledInstantApps = new SparseArray<>(); |
| 450 | } |
| 451 | List<UninstalledInstantAppState> uninstalledAppStates = |
| 452 | mUninstalledInstantApps.get(userId); |
| 453 | if (uninstalledAppStates == null) { |
| 454 | uninstalledAppStates = new ArrayList<>(); |
| 455 | mUninstalledInstantApps.put(userId, uninstalledAppStates); |
| 456 | } |
| 457 | UninstalledInstantAppState uninstalledAppState = new UninstalledInstantAppState( |
| 458 | uninstalledApp, System.currentTimeMillis()); |
| 459 | uninstalledAppStates.add(uninstalledAppState); |
| 460 | |
| 461 | writeUninstalledInstantAppMetadata(uninstalledApp, userId); |
| 462 | writeInstantApplicationIconLPw(pkg, userId); |
| 463 | } |
| 464 | |
| 465 | private void writeInstantApplicationIconLPw(@NonNull PackageParser.Package pkg, |
| 466 | @UserIdInt int userId) { |
| 467 | File appDir = getInstantApplicationDir(pkg.packageName, userId); |
| 468 | if (!appDir.exists()) { |
| 469 | return; |
| 470 | } |
| 471 | |
| 472 | Drawable icon = pkg.applicationInfo.loadIcon(mService.mContext.getPackageManager()); |
| 473 | |
| 474 | final Bitmap bitmap; |
| 475 | if (icon instanceof BitmapDrawable) { |
| 476 | bitmap = ((BitmapDrawable) icon).getBitmap(); |
| 477 | } else { |
| 478 | bitmap = Bitmap.createBitmap(icon.getIntrinsicWidth(), |
| 479 | icon.getIntrinsicHeight(), Bitmap.Config.ARGB_8888); |
| 480 | Canvas canvas = new Canvas(bitmap); |
Todd Kennedy | 03f336b | 2017-02-28 15:11:52 -0800 | [diff] [blame] | 481 | icon.setBounds(0, 0, icon.getIntrinsicWidth(), icon.getIntrinsicHeight()); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 482 | icon.draw(canvas); |
| 483 | } |
| 484 | |
| 485 | File iconFile = new File(getInstantApplicationDir(pkg.packageName, userId), |
| 486 | INSTANT_APP_ICON_FILE); |
| 487 | |
| 488 | try (FileOutputStream out = new FileOutputStream(iconFile)) { |
| 489 | bitmap.compress(Bitmap.CompressFormat.PNG, 100, out); |
| 490 | } catch (Exception e) { |
| 491 | Slog.e(LOG_TAG, "Error writing instant app icon", e); |
| 492 | } |
| 493 | } |
| 494 | |
| 495 | public void deleteInstantApplicationMetadataLPw(@NonNull String packageName, |
| 496 | @UserIdInt int userId) { |
| 497 | removeUninstalledInstantAppStateLPw((UninstalledInstantAppState state) -> |
| 498 | state.mInstantAppInfo.getPackageName().equals(packageName), |
| 499 | userId); |
| 500 | |
| 501 | File instantAppDir = getInstantApplicationDir(packageName, userId); |
| 502 | new File(instantAppDir, INSTANT_APP_METADATA_FILE).delete(); |
| 503 | new File(instantAppDir, INSTANT_APP_ICON_FILE).delete(); |
Chad Brubaker | 0d277a7 | 2017-04-12 16:56:53 -0700 | [diff] [blame] | 504 | new File(instantAppDir, INSTANT_APP_ANDROID_ID_FILE).delete(); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 505 | File cookie = peekInstantCookieFile(packageName, userId); |
| 506 | if (cookie != null) { |
| 507 | cookie.delete(); |
| 508 | } |
| 509 | } |
| 510 | |
| 511 | private void removeUninstalledInstantAppStateLPw( |
| 512 | @NonNull Predicate<UninstalledInstantAppState> criteria, @UserIdInt int userId) { |
| 513 | if (mUninstalledInstantApps == null) { |
| 514 | return; |
| 515 | } |
| 516 | List<UninstalledInstantAppState> uninstalledAppStates = |
| 517 | mUninstalledInstantApps.get(userId); |
| 518 | if (uninstalledAppStates == null) { |
| 519 | return; |
| 520 | } |
| 521 | final int appCount = uninstalledAppStates.size(); |
Todd Kennedy | 7a12f9f | 2017-01-31 12:49:28 -0800 | [diff] [blame] | 522 | for (int i = appCount - 1; i >= 0; --i) { |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 523 | UninstalledInstantAppState uninstalledAppState = uninstalledAppStates.get(i); |
| 524 | if (!criteria.test(uninstalledAppState)) { |
| 525 | continue; |
| 526 | } |
| 527 | uninstalledAppStates.remove(i); |
| 528 | if (uninstalledAppStates.isEmpty()) { |
| 529 | mUninstalledInstantApps.remove(userId); |
| 530 | if (mUninstalledInstantApps.size() <= 0) { |
| 531 | mUninstalledInstantApps = null; |
| 532 | } |
| 533 | return; |
| 534 | } |
| 535 | } |
| 536 | } |
| 537 | |
| 538 | public void pruneInstantAppsLPw() { |
| 539 | // For now we prune only state for uninstalled instant apps |
| 540 | final long maxCacheDurationMillis = Settings.Global.getLong( |
| 541 | mService.mContext.getContentResolver(), |
| 542 | Settings.Global.UNINSTALLED_INSTANT_APP_CACHE_DURATION_MILLIS, |
| 543 | DEFAULT_UNINSTALLED_INSTANT_APP_CACHE_DURATION_MILLIS); |
| 544 | |
| 545 | for (int userId : UserManagerService.getInstance().getUserIds()) { |
| 546 | // Prune in-memory state |
| 547 | removeUninstalledInstantAppStateLPw((UninstalledInstantAppState state) -> { |
| 548 | final long elapsedCachingMillis = System.currentTimeMillis() - state.mTimestamp; |
| 549 | return (elapsedCachingMillis > maxCacheDurationMillis); |
| 550 | }, userId); |
| 551 | |
| 552 | // Prune on-disk state |
| 553 | File instantAppsDir = getInstantApplicationsDir(userId); |
| 554 | if (!instantAppsDir.exists()) { |
| 555 | continue; |
| 556 | } |
| 557 | File[] files = instantAppsDir.listFiles(); |
| 558 | if (files == null) { |
| 559 | continue; |
| 560 | } |
| 561 | for (File instantDir : files) { |
| 562 | if (!instantDir.isDirectory()) { |
| 563 | continue; |
| 564 | } |
| 565 | |
| 566 | File metadataFile = new File(instantDir, INSTANT_APP_METADATA_FILE); |
| 567 | if (!metadataFile.exists()) { |
| 568 | continue; |
| 569 | } |
| 570 | |
| 571 | final long elapsedCachingMillis = System.currentTimeMillis() |
| 572 | - metadataFile.lastModified(); |
| 573 | if (elapsedCachingMillis > maxCacheDurationMillis) { |
| 574 | deleteDir(instantDir); |
| 575 | } |
| 576 | } |
| 577 | } |
| 578 | } |
| 579 | |
| 580 | private @Nullable List<InstantAppInfo> getInstalledInstantApplicationsLPr( |
| 581 | @UserIdInt int userId) { |
| 582 | List<InstantAppInfo> result = null; |
| 583 | |
| 584 | final int packageCount = mService.mPackages.size(); |
| 585 | for (int i = 0; i < packageCount; i++) { |
Todd Kennedy | be0b889 | 2017-02-15 14:13:52 -0800 | [diff] [blame] | 586 | final PackageParser.Package pkg = mService.mPackages.valueAt(i); |
| 587 | final PackageSetting ps = (PackageSetting) pkg.mExtras; |
| 588 | if (ps == null || !ps.getInstantApp(userId)) { |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 589 | continue; |
| 590 | } |
Todd Kennedy | be0b889 | 2017-02-15 14:13:52 -0800 | [diff] [blame] | 591 | final InstantAppInfo info = createInstantAppInfoForPackage( |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 592 | pkg, userId, true); |
| 593 | if (info == null) { |
| 594 | continue; |
| 595 | } |
| 596 | if (result == null) { |
| 597 | result = new ArrayList<>(); |
| 598 | } |
| 599 | result.add(info); |
| 600 | } |
| 601 | |
| 602 | return result; |
| 603 | } |
| 604 | |
| 605 | private @NonNull |
| 606 | InstantAppInfo createInstantAppInfoForPackage( |
| 607 | @NonNull PackageParser.Package pkg, @UserIdInt int userId, |
| 608 | boolean addApplicationInfo) { |
| 609 | PackageSetting ps = (PackageSetting) pkg.mExtras; |
| 610 | if (ps == null) { |
| 611 | return null; |
| 612 | } |
| 613 | if (!ps.getInstalled(userId)) { |
| 614 | return null; |
| 615 | } |
| 616 | |
| 617 | String[] requestedPermissions = new String[pkg.requestedPermissions.size()]; |
| 618 | pkg.requestedPermissions.toArray(requestedPermissions); |
| 619 | |
| 620 | Set<String> permissions = ps.getPermissionsState().getPermissions(userId); |
| 621 | String[] grantedPermissions = new String[permissions.size()]; |
| 622 | permissions.toArray(grantedPermissions); |
| 623 | |
| 624 | if (addApplicationInfo) { |
| 625 | return new InstantAppInfo(pkg.applicationInfo, |
| 626 | requestedPermissions, grantedPermissions); |
| 627 | } else { |
| 628 | return new InstantAppInfo(pkg.applicationInfo.packageName, |
| 629 | pkg.applicationInfo.loadLabel(mService.mContext.getPackageManager()), |
| 630 | requestedPermissions, grantedPermissions); |
| 631 | } |
| 632 | } |
| 633 | |
| 634 | private @Nullable List<InstantAppInfo> getUninstalledInstantApplicationsLPr( |
| 635 | @UserIdInt int userId) { |
| 636 | List<UninstalledInstantAppState> uninstalledAppStates = |
| 637 | getUninstalledInstantAppStatesLPr(userId); |
| 638 | if (uninstalledAppStates == null || uninstalledAppStates.isEmpty()) { |
| 639 | return null; |
| 640 | } |
| 641 | |
| 642 | List<InstantAppInfo> uninstalledApps = null; |
| 643 | final int stateCount = uninstalledAppStates.size(); |
| 644 | for (int i = 0; i < stateCount; i++) { |
| 645 | UninstalledInstantAppState uninstalledAppState = uninstalledAppStates.get(i); |
| 646 | if (uninstalledApps == null) { |
| 647 | uninstalledApps = new ArrayList<>(); |
| 648 | } |
| 649 | uninstalledApps.add(uninstalledAppState.mInstantAppInfo); |
| 650 | } |
| 651 | return uninstalledApps; |
| 652 | } |
| 653 | |
| 654 | private void propagateInstantAppPermissionsIfNeeded(@NonNull String packageName, |
| 655 | @UserIdInt int userId) { |
| 656 | InstantAppInfo appInfo = peekOrParseUninstalledInstantAppInfo( |
| 657 | packageName, userId); |
| 658 | if (appInfo == null) { |
| 659 | return; |
| 660 | } |
| 661 | if (ArrayUtils.isEmpty(appInfo.getGrantedPermissions())) { |
| 662 | return; |
| 663 | } |
| 664 | final long identity = Binder.clearCallingIdentity(); |
| 665 | try { |
| 666 | for (String grantedPermission : appInfo.getGrantedPermissions()) { |
| 667 | BasePermission bp = mService.mSettings.mPermissions.get(grantedPermission); |
| 668 | if (bp != null && (bp.isRuntime() || bp.isDevelopment()) && bp.isInstant()) { |
| 669 | mService.grantRuntimePermission(packageName, grantedPermission, userId); |
| 670 | } |
| 671 | } |
| 672 | } finally { |
| 673 | Binder.restoreCallingIdentity(identity); |
| 674 | } |
| 675 | } |
| 676 | |
| 677 | private @NonNull |
| 678 | InstantAppInfo peekOrParseUninstalledInstantAppInfo( |
| 679 | @NonNull String packageName, @UserIdInt int userId) { |
| 680 | if (mUninstalledInstantApps != null) { |
| 681 | List<UninstalledInstantAppState> uninstalledAppStates = |
| 682 | mUninstalledInstantApps.get(userId); |
| 683 | if (uninstalledAppStates != null) { |
| 684 | final int appCount = uninstalledAppStates.size(); |
| 685 | for (int i = 0; i < appCount; i++) { |
| 686 | UninstalledInstantAppState uninstalledAppState = uninstalledAppStates.get(i); |
| 687 | if (uninstalledAppState.mInstantAppInfo |
| 688 | .getPackageName().equals(packageName)) { |
| 689 | return uninstalledAppState.mInstantAppInfo; |
| 690 | } |
| 691 | } |
| 692 | } |
| 693 | } |
| 694 | |
| 695 | File metadataFile = new File(getInstantApplicationDir(packageName, userId), |
| 696 | INSTANT_APP_METADATA_FILE); |
| 697 | UninstalledInstantAppState uninstalledAppState = parseMetadataFile(metadataFile); |
| 698 | if (uninstalledAppState == null) { |
| 699 | return null; |
| 700 | } |
| 701 | |
| 702 | return uninstalledAppState.mInstantAppInfo; |
| 703 | } |
| 704 | |
| 705 | private @Nullable List<UninstalledInstantAppState> getUninstalledInstantAppStatesLPr( |
| 706 | @UserIdInt int userId) { |
| 707 | List<UninstalledInstantAppState> uninstalledAppStates = null; |
| 708 | if (mUninstalledInstantApps != null) { |
| 709 | uninstalledAppStates = mUninstalledInstantApps.get(userId); |
| 710 | if (uninstalledAppStates != null) { |
| 711 | return uninstalledAppStates; |
| 712 | } |
| 713 | } |
| 714 | |
| 715 | File instantAppsDir = getInstantApplicationsDir(userId); |
| 716 | if (instantAppsDir.exists()) { |
| 717 | File[] files = instantAppsDir.listFiles(); |
| 718 | if (files != null) { |
| 719 | for (File instantDir : files) { |
| 720 | if (!instantDir.isDirectory()) { |
| 721 | continue; |
| 722 | } |
| 723 | File metadataFile = new File(instantDir, |
| 724 | INSTANT_APP_METADATA_FILE); |
| 725 | UninstalledInstantAppState uninstalledAppState = |
| 726 | parseMetadataFile(metadataFile); |
| 727 | if (uninstalledAppState == null) { |
| 728 | continue; |
| 729 | } |
| 730 | if (uninstalledAppStates == null) { |
| 731 | uninstalledAppStates = new ArrayList<>(); |
| 732 | } |
| 733 | uninstalledAppStates.add(uninstalledAppState); |
| 734 | } |
| 735 | } |
| 736 | } |
| 737 | |
| 738 | if (uninstalledAppStates != null) { |
| 739 | if (mUninstalledInstantApps == null) { |
| 740 | mUninstalledInstantApps = new SparseArray<>(); |
| 741 | } |
| 742 | mUninstalledInstantApps.put(userId, uninstalledAppStates); |
| 743 | } |
| 744 | |
| 745 | return uninstalledAppStates; |
| 746 | } |
| 747 | |
| 748 | private static @Nullable UninstalledInstantAppState parseMetadataFile( |
| 749 | @NonNull File metadataFile) { |
| 750 | if (!metadataFile.exists()) { |
| 751 | return null; |
| 752 | } |
| 753 | FileInputStream in; |
| 754 | try { |
| 755 | in = new AtomicFile(metadataFile).openRead(); |
| 756 | } catch (FileNotFoundException fnfe) { |
| 757 | Slog.i(LOG_TAG, "No instant metadata file"); |
| 758 | return null; |
| 759 | } |
| 760 | |
| 761 | final File instantDir = metadataFile.getParentFile(); |
| 762 | final long timestamp = metadataFile.lastModified(); |
| 763 | final String packageName = instantDir.getName(); |
| 764 | |
| 765 | try { |
| 766 | XmlPullParser parser = Xml.newPullParser(); |
| 767 | parser.setInput(in, StandardCharsets.UTF_8.name()); |
| 768 | return new UninstalledInstantAppState( |
| 769 | parseMetadata(parser, packageName), timestamp); |
| 770 | } catch (XmlPullParserException | IOException e) { |
| 771 | throw new IllegalStateException("Failed parsing instant" |
| 772 | + " metadata file: " + metadataFile, e); |
| 773 | } finally { |
| 774 | IoUtils.closeQuietly(in); |
| 775 | } |
| 776 | } |
| 777 | |
| 778 | private static @NonNull File computeInstantCookieFile(@NonNull PackageParser.Package pkg, |
| 779 | @UserIdInt int userId) { |
| 780 | File appDir = getInstantApplicationDir(pkg.packageName, userId); |
| 781 | String cookieFile = INSTANT_APP_COOKIE_FILE_PREFIX + PackageUtils.computeSha256Digest( |
| 782 | pkg.mSignatures[0].toByteArray()) + INSTANT_APP_COOKIE_FILE_SIFFIX; |
| 783 | return new File(appDir, cookieFile); |
| 784 | } |
| 785 | |
| 786 | private static @Nullable File peekInstantCookieFile(@NonNull String packageName, |
| 787 | @UserIdInt int userId) { |
| 788 | File appDir = getInstantApplicationDir(packageName, userId); |
| 789 | if (!appDir.exists()) { |
| 790 | return null; |
| 791 | } |
| 792 | File[] files = appDir.listFiles(); |
| 793 | if (files == null) { |
| 794 | return null; |
| 795 | } |
| 796 | for (File file : files) { |
| 797 | if (!file.isDirectory() |
| 798 | && file.getName().startsWith(INSTANT_APP_COOKIE_FILE_PREFIX) |
| 799 | && file.getName().endsWith(INSTANT_APP_COOKIE_FILE_SIFFIX)) { |
| 800 | return file; |
| 801 | } |
| 802 | } |
| 803 | return null; |
| 804 | } |
| 805 | |
| 806 | private static @Nullable |
| 807 | InstantAppInfo parseMetadata(@NonNull XmlPullParser parser, |
| 808 | @NonNull String packageName) |
| 809 | throws IOException, XmlPullParserException { |
| 810 | final int outerDepth = parser.getDepth(); |
| 811 | while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| 812 | if (TAG_PACKAGE.equals(parser.getName())) { |
| 813 | return parsePackage(parser, packageName); |
| 814 | } |
| 815 | } |
| 816 | return null; |
| 817 | } |
| 818 | |
| 819 | private static InstantAppInfo parsePackage(@NonNull XmlPullParser parser, |
| 820 | @NonNull String packageName) |
| 821 | throws IOException, XmlPullParserException { |
| 822 | String label = parser.getAttributeValue(null, ATTR_LABEL); |
| 823 | |
| 824 | List<String> outRequestedPermissions = new ArrayList<>(); |
| 825 | List<String> outGrantedPermissions = new ArrayList<>(); |
| 826 | |
| 827 | final int outerDepth = parser.getDepth(); |
| 828 | while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| 829 | if (TAG_PERMISSIONS.equals(parser.getName())) { |
| 830 | parsePermissions(parser, outRequestedPermissions, outGrantedPermissions); |
| 831 | } |
| 832 | } |
| 833 | |
| 834 | String[] requestedPermissions = new String[outRequestedPermissions.size()]; |
| 835 | outRequestedPermissions.toArray(requestedPermissions); |
| 836 | |
| 837 | String[] grantedPermissions = new String[outGrantedPermissions.size()]; |
| 838 | outGrantedPermissions.toArray(grantedPermissions); |
| 839 | |
| 840 | return new InstantAppInfo(packageName, label, |
| 841 | requestedPermissions, grantedPermissions); |
| 842 | } |
| 843 | |
| 844 | private static void parsePermissions(@NonNull XmlPullParser parser, |
| 845 | @NonNull List<String> outRequestedPermissions, |
| 846 | @NonNull List<String> outGrantedPermissions) |
| 847 | throws IOException, XmlPullParserException { |
| 848 | final int outerDepth = parser.getDepth(); |
| 849 | while (XmlUtils.nextElementWithin(parser,outerDepth)) { |
| 850 | if (TAG_PERMISSION.equals(parser.getName())) { |
| 851 | String permission = XmlUtils.readStringAttribute(parser, ATTR_NAME); |
| 852 | outRequestedPermissions.add(permission); |
| 853 | if (XmlUtils.readBooleanAttribute(parser, ATTR_GRANTED)) { |
| 854 | outGrantedPermissions.add(permission); |
| 855 | } |
| 856 | } |
| 857 | } |
| 858 | } |
| 859 | |
| 860 | private void writeUninstalledInstantAppMetadata( |
| 861 | @NonNull InstantAppInfo instantApp, @UserIdInt int userId) { |
| 862 | File appDir = getInstantApplicationDir(instantApp.getPackageName(), userId); |
| 863 | if (!appDir.exists() && !appDir.mkdirs()) { |
| 864 | return; |
| 865 | } |
| 866 | |
| 867 | File metadataFile = new File(appDir, INSTANT_APP_METADATA_FILE); |
| 868 | |
| 869 | AtomicFile destination = new AtomicFile(metadataFile); |
| 870 | FileOutputStream out = null; |
| 871 | try { |
| 872 | out = destination.startWrite(); |
| 873 | |
| 874 | XmlSerializer serializer = Xml.newSerializer(); |
| 875 | serializer.setOutput(out, StandardCharsets.UTF_8.name()); |
| 876 | serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); |
| 877 | |
| 878 | serializer.startDocument(null, true); |
| 879 | |
| 880 | serializer.startTag(null, TAG_PACKAGE); |
| 881 | serializer.attribute(null, ATTR_LABEL, instantApp.loadLabel( |
| 882 | mService.mContext.getPackageManager()).toString()); |
| 883 | |
| 884 | serializer.startTag(null, TAG_PERMISSIONS); |
| 885 | for (String permission : instantApp.getRequestedPermissions()) { |
| 886 | serializer.startTag(null, TAG_PERMISSION); |
| 887 | serializer.attribute(null, ATTR_NAME, permission); |
| 888 | if (ArrayUtils.contains(instantApp.getGrantedPermissions(), permission)) { |
| 889 | serializer.attribute(null, ATTR_GRANTED, String.valueOf(true)); |
| 890 | } |
| 891 | serializer.endTag(null, TAG_PERMISSION); |
| 892 | } |
| 893 | serializer.endTag(null, TAG_PERMISSIONS); |
| 894 | |
| 895 | serializer.endTag(null, TAG_PACKAGE); |
| 896 | |
| 897 | serializer.endDocument(); |
| 898 | destination.finishWrite(out); |
| 899 | } catch (Throwable t) { |
| 900 | Slog.wtf(LOG_TAG, "Failed to write instant state, restoring backup", t); |
| 901 | destination.failWrite(out); |
| 902 | } finally { |
| 903 | IoUtils.closeQuietly(out); |
| 904 | } |
| 905 | } |
| 906 | |
| 907 | private static @NonNull File getInstantApplicationsDir(int userId) { |
| 908 | return new File(Environment.getUserSystemDirectory(userId), |
| 909 | INSTANT_APPS_FOLDER); |
| 910 | } |
| 911 | |
| 912 | private static @NonNull File getInstantApplicationDir(String packageName, int userId) { |
| 913 | return new File (getInstantApplicationsDir(userId), packageName); |
| 914 | } |
| 915 | |
| 916 | private static void deleteDir(@NonNull File dir) { |
| 917 | File[] files = dir.listFiles(); |
| 918 | if (files != null) { |
| 919 | for (File file : files) { |
| 920 | deleteDir(file); |
| 921 | } |
| 922 | } |
| 923 | dir.delete(); |
| 924 | } |
| 925 | |
| 926 | private static final class UninstalledInstantAppState { |
| 927 | final InstantAppInfo mInstantAppInfo; |
| 928 | final long mTimestamp; |
| 929 | |
| 930 | public UninstalledInstantAppState(InstantAppInfo instantApp, |
| 931 | long timestamp) { |
| 932 | mInstantAppInfo = instantApp; |
| 933 | mTimestamp = timestamp; |
| 934 | } |
| 935 | } |
| 936 | |
| 937 | private final class CookiePersistence extends Handler { |
| 938 | private static final long PERSIST_COOKIE_DELAY_MILLIS = 1000L; /* one second */ |
| 939 | |
| 940 | // In case you wonder why we stash the cookies aside, we use |
| 941 | // the user id for the message id and the package for the payload. |
| 942 | // Handler allows removing messages by id and tag where the |
Svet Ganov | ee2028c | 2017-02-17 17:23:29 -0800 | [diff] [blame] | 943 | // tag is compared using ==. So to allow cancelling the |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 944 | // pending persistence for an app under a given user we use |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 945 | // the fact that package are cached by the system so the == |
| 946 | // comparison would match and we end up with a way to cancel |
| 947 | // persisting the cookie for a user and package. |
| 948 | private final SparseArray<ArrayMap<PackageParser.Package, SomeArgs>> mPendingPersistCookies |
| 949 | = new SparseArray<>(); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 950 | |
| 951 | public CookiePersistence(Looper looper) { |
| 952 | super(looper); |
| 953 | } |
| 954 | |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 955 | public void schedulePersistLPw(@UserIdInt int userId, @NonNull PackageParser.Package pkg, |
| 956 | @NonNull byte[] cookie) { |
| 957 | File cookieFile = computeInstantCookieFile(pkg, userId); |
| 958 | cancelPendingPersistLPw(pkg, userId); |
| 959 | addPendingPersistCookieLPw(userId, pkg, cookie, cookieFile); |
| 960 | sendMessageDelayed(obtainMessage(userId, pkg), |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 961 | PERSIST_COOKIE_DELAY_MILLIS); |
| 962 | } |
| 963 | |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 964 | public @Nullable byte[] getPendingPersistCookieLPr(@NonNull PackageParser.Package pkg, |
| 965 | @UserIdInt int userId) { |
| 966 | ArrayMap<PackageParser.Package, SomeArgs> pendingWorkForUser = |
| 967 | mPendingPersistCookies.get(userId); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 968 | if (pendingWorkForUser != null) { |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 969 | SomeArgs state = pendingWorkForUser.get(pkg); |
| 970 | if (state != null) { |
| 971 | return (byte[]) state.arg1; |
| 972 | } |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 973 | } |
| 974 | return null; |
| 975 | } |
| 976 | |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 977 | public void cancelPendingPersistLPw(@NonNull PackageParser.Package pkg, |
| 978 | @UserIdInt int userId) { |
| 979 | removeMessages(userId, pkg); |
| 980 | SomeArgs state = removePendingPersistCookieLPr(pkg, userId); |
| 981 | if (state != null) { |
| 982 | state.recycle(); |
| 983 | } |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 984 | } |
| 985 | |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 986 | private void addPendingPersistCookieLPw(@UserIdInt int userId, |
| 987 | @NonNull PackageParser.Package pkg, @NonNull byte[] cookie, |
| 988 | @NonNull File cookieFile) { |
| 989 | ArrayMap<PackageParser.Package, SomeArgs> pendingWorkForUser = |
| 990 | mPendingPersistCookies.get(userId); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 991 | if (pendingWorkForUser == null) { |
| 992 | pendingWorkForUser = new ArrayMap<>(); |
| 993 | mPendingPersistCookies.put(userId, pendingWorkForUser); |
| 994 | } |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 995 | SomeArgs args = SomeArgs.obtain(); |
| 996 | args.arg1 = cookie; |
| 997 | args.arg2 = cookieFile; |
| 998 | pendingWorkForUser.put(pkg, args); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 999 | } |
| 1000 | |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 1001 | private SomeArgs removePendingPersistCookieLPr(@NonNull PackageParser.Package pkg, |
| 1002 | @UserIdInt int userId) { |
| 1003 | ArrayMap<PackageParser.Package, SomeArgs> pendingWorkForUser = |
| 1004 | mPendingPersistCookies.get(userId); |
| 1005 | SomeArgs state = null; |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 1006 | if (pendingWorkForUser != null) { |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 1007 | state = pendingWorkForUser.remove(pkg); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 1008 | if (pendingWorkForUser.isEmpty()) { |
| 1009 | mPendingPersistCookies.remove(userId); |
| 1010 | } |
| 1011 | } |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 1012 | return state; |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 1013 | } |
| 1014 | |
| 1015 | @Override |
| 1016 | public void handleMessage(Message message) { |
| 1017 | int userId = message.what; |
Svet Ganov | 312c6cc | 2017-02-17 20:48:24 -0800 | [diff] [blame] | 1018 | PackageParser.Package pkg = (PackageParser.Package) message.obj; |
| 1019 | SomeArgs state = removePendingPersistCookieLPr(pkg, userId); |
| 1020 | if (state == null) { |
| 1021 | return; |
| 1022 | } |
| 1023 | byte[] cookie = (byte[]) state.arg1; |
| 1024 | File cookieFile = (File) state.arg2; |
| 1025 | state.recycle(); |
| 1026 | persistInstantApplicationCookie(cookie, pkg.packageName, cookieFile, userId); |
Svetoslav Ganov | 096d304 | 2017-01-30 16:34:13 -0800 | [diff] [blame] | 1027 | } |
| 1028 | } |
| 1029 | } |