Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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.om; |
| 18 | |
| 19 | import static android.content.om.OverlayInfo.STATE_DISABLED; |
| 20 | import static android.content.om.OverlayInfo.STATE_ENABLED; |
| 21 | import static android.content.om.OverlayInfo.STATE_MISSING_TARGET; |
| 22 | import static android.content.om.OverlayInfo.STATE_NO_IDMAP; |
| 23 | |
| 24 | import static com.android.server.om.OverlayManagerService.DEBUG; |
| 25 | import static com.android.server.om.OverlayManagerService.TAG; |
| 26 | |
| 27 | import android.annotation.NonNull; |
| 28 | import android.annotation.Nullable; |
| 29 | import android.content.om.OverlayInfo; |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 30 | import android.content.pm.PackageInfo; |
Adam Lesinski | a5ca624 | 2017-03-01 15:45:12 -0800 | [diff] [blame] | 31 | import android.text.TextUtils; |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 32 | import android.util.ArrayMap; |
| 33 | import android.util.ArraySet; |
| 34 | import android.util.Slog; |
| 35 | |
| 36 | import java.io.PrintWriter; |
| 37 | import java.util.ArrayList; |
| 38 | import java.util.Iterator; |
| 39 | import java.util.List; |
| 40 | import java.util.Map; |
| 41 | import java.util.Set; |
| 42 | |
| 43 | /** |
| 44 | * Internal implementation of OverlayManagerService. |
| 45 | * |
| 46 | * Methods in this class should only be called by the OverlayManagerService. |
| 47 | * This class is not thread-safe; the caller is expected to ensure the |
| 48 | * necessary thread synchronization. |
| 49 | * |
| 50 | * @see OverlayManagerService |
| 51 | */ |
| 52 | final class OverlayManagerServiceImpl { |
| 53 | private final PackageManagerHelper mPackageManager; |
| 54 | private final IdmapManager mIdmapManager; |
| 55 | private final OverlayManagerSettings mSettings; |
Adam Lesinski | a5ca624 | 2017-03-01 15:45:12 -0800 | [diff] [blame] | 56 | private final Set<String> mDefaultOverlays; |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 57 | |
| 58 | OverlayManagerServiceImpl(@NonNull final PackageManagerHelper packageManager, |
| 59 | @NonNull final IdmapManager idmapManager, |
Adam Lesinski | a5ca624 | 2017-03-01 15:45:12 -0800 | [diff] [blame] | 60 | @NonNull final OverlayManagerSettings settings, |
| 61 | @NonNull final Set<String> defaultOverlays) { |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 62 | mPackageManager = packageManager; |
| 63 | mIdmapManager = idmapManager; |
| 64 | mSettings = settings; |
Adam Lesinski | a5ca624 | 2017-03-01 15:45:12 -0800 | [diff] [blame] | 65 | mDefaultOverlays = defaultOverlays; |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 66 | } |
| 67 | |
| 68 | /* |
| 69 | * Call this when switching to a new Android user. Will return a list of |
| 70 | * target packages that must refresh their overlays. This list is the union |
| 71 | * of two sets: the set of targets with currently active overlays, and the |
| 72 | * set of targets that had, but no longer have, active overlays. |
| 73 | */ |
| 74 | List<String> onSwitchUser(final int newUserId) { |
| 75 | if (DEBUG) { |
| 76 | Slog.d(TAG, "onSwitchUser newUserId=" + newUserId); |
| 77 | } |
| 78 | |
| 79 | final Set<String> packagesToUpdateAssets = new ArraySet<>(); |
| 80 | final ArrayMap<String, List<OverlayInfo>> tmp = mSettings.getOverlaysForUser(newUserId); |
| 81 | final int tmpSize = tmp.size(); |
| 82 | final ArrayMap<String, OverlayInfo> storedOverlayInfos = new ArrayMap<>(tmpSize); |
| 83 | for (int i = 0; i < tmpSize; i++) { |
| 84 | final List<OverlayInfo> chunk = tmp.valueAt(i); |
| 85 | final int chunkSize = chunk.size(); |
| 86 | for (int j = 0; j < chunkSize; j++) { |
| 87 | final OverlayInfo oi = chunk.get(j); |
| 88 | storedOverlayInfos.put(oi.packageName, oi); |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | List<PackageInfo> overlayPackages = mPackageManager.getOverlayPackages(newUserId); |
| 93 | final int overlayPackagesSize = overlayPackages.size(); |
| 94 | for (int i = 0; i < overlayPackagesSize; i++) { |
| 95 | final PackageInfo overlayPackage = overlayPackages.get(i); |
| 96 | final OverlayInfo oi = storedOverlayInfos.get(overlayPackage.packageName); |
| 97 | if (oi == null || !oi.targetPackageName.equals(overlayPackage.overlayTarget)) { |
Adam Lesinski | a5ca624 | 2017-03-01 15:45:12 -0800 | [diff] [blame] | 98 | // Update the overlay if it didn't exist or had the wrong target package. |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 99 | mSettings.init(overlayPackage.packageName, newUserId, |
| 100 | overlayPackage.overlayTarget, |
| 101 | overlayPackage.applicationInfo.getBaseCodePath()); |
Adam Lesinski | a5ca624 | 2017-03-01 15:45:12 -0800 | [diff] [blame] | 102 | |
| 103 | if (oi == null) { |
| 104 | // This overlay does not exist in our settings. |
Jaekyun Seok | 84d7f1e | 2017-03-29 11:02:15 +0900 | [diff] [blame^] | 105 | if (overlayPackage.isStaticOverlay || |
| 106 | mDefaultOverlays.contains(overlayPackage.packageName)) { |
Adam Lesinski | a5ca624 | 2017-03-01 15:45:12 -0800 | [diff] [blame] | 107 | // Enable this overlay by default. |
| 108 | mSettings.setEnabled(overlayPackage.packageName, newUserId, true); |
| 109 | } |
| 110 | } else { |
| 111 | // The targetPackageName we have stored doesn't match the overlay's target. |
| 112 | // Queue the old target for an update as well. |
| 113 | packagesToUpdateAssets.add(oi.targetPackageName); |
| 114 | } |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 115 | } |
| 116 | |
| 117 | try { |
| 118 | final PackageInfo targetPackage = |
| 119 | mPackageManager.getPackageInfo(overlayPackage.overlayTarget, newUserId); |
| 120 | updateState(targetPackage, overlayPackage, newUserId); |
| 121 | } catch (OverlayManagerSettings.BadKeyException e) { |
| 122 | Slog.e(TAG, "failed to update settings", e); |
| 123 | mSettings.remove(overlayPackage.packageName, newUserId); |
| 124 | } |
| 125 | |
| 126 | packagesToUpdateAssets.add(overlayPackage.overlayTarget); |
| 127 | storedOverlayInfos.remove(overlayPackage.packageName); |
| 128 | } |
| 129 | |
| 130 | // any OverlayInfo left in storedOverlayInfos is no longer |
| 131 | // installed and should be removed |
| 132 | final int storedOverlayInfosSize = storedOverlayInfos.size(); |
| 133 | for (int i = 0; i < storedOverlayInfosSize; i++) { |
Mårten Kongstad | c0bba8b | 2017-01-27 10:15:49 +0100 | [diff] [blame] | 134 | final OverlayInfo oi = storedOverlayInfos.valueAt(i); |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 135 | mSettings.remove(oi.packageName, oi.userId); |
| 136 | removeIdmapIfPossible(oi); |
| 137 | packagesToUpdateAssets.add(oi.targetPackageName); |
| 138 | } |
| 139 | |
| 140 | // remove target packages that are not installed |
| 141 | final Iterator<String> iter = packagesToUpdateAssets.iterator(); |
| 142 | while (iter.hasNext()) { |
| 143 | String targetPackageName = iter.next(); |
| 144 | if (mPackageManager.getPackageInfo(targetPackageName, newUserId) == null) { |
| 145 | iter.remove(); |
| 146 | } |
| 147 | } |
| 148 | |
Adam Lesinski | a5ca624 | 2017-03-01 15:45:12 -0800 | [diff] [blame] | 149 | return new ArrayList<>(packagesToUpdateAssets); |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 150 | } |
| 151 | |
| 152 | void onUserRemoved(final int userId) { |
| 153 | if (DEBUG) { |
| 154 | Slog.d(TAG, "onUserRemoved userId=" + userId); |
| 155 | } |
| 156 | mSettings.removeUser(userId); |
| 157 | } |
| 158 | |
| 159 | void onTargetPackageAdded(@NonNull final String packageName, final int userId) { |
| 160 | if (DEBUG) { |
| 161 | Slog.d(TAG, "onTargetPackageAdded packageName=" + packageName + " userId=" + userId); |
| 162 | } |
| 163 | |
| 164 | final PackageInfo targetPackage = mPackageManager.getPackageInfo(packageName, userId); |
| 165 | updateAllOverlaysForTarget(packageName, userId, targetPackage); |
| 166 | } |
| 167 | |
| 168 | void onTargetPackageChanged(@NonNull final String packageName, final int userId) { |
| 169 | if (DEBUG) { |
| 170 | Slog.d(TAG, "onTargetPackageChanged packageName=" + packageName + " userId=" + userId); |
| 171 | } |
| 172 | |
| 173 | final PackageInfo targetPackage = mPackageManager.getPackageInfo(packageName, userId); |
| 174 | updateAllOverlaysForTarget(packageName, userId, targetPackage); |
| 175 | } |
| 176 | |
| 177 | void onTargetPackageUpgrading(@NonNull final String packageName, final int userId) { |
| 178 | if (DEBUG) { |
| 179 | Slog.d(TAG, "onTargetPackageUpgrading packageName=" + packageName + " userId=" + userId); |
| 180 | } |
| 181 | |
| 182 | updateAllOverlaysForTarget(packageName, userId, null); |
| 183 | } |
| 184 | |
| 185 | void onTargetPackageUpgraded(@NonNull final String packageName, final int userId) { |
| 186 | if (DEBUG) { |
| 187 | Slog.d(TAG, "onTargetPackageUpgraded packageName=" + packageName + " userId=" + userId); |
| 188 | } |
| 189 | |
| 190 | final PackageInfo targetPackage = mPackageManager.getPackageInfo(packageName, userId); |
| 191 | updateAllOverlaysForTarget(packageName, userId, targetPackage); |
| 192 | } |
| 193 | |
| 194 | void onTargetPackageRemoved(@NonNull final String packageName, final int userId) { |
| 195 | if (DEBUG) { |
| 196 | Slog.d(TAG, "onTargetPackageRemoved packageName=" + packageName + " userId=" + userId); |
| 197 | } |
| 198 | |
| 199 | updateAllOverlaysForTarget(packageName, userId, null); |
| 200 | } |
| 201 | |
| 202 | private void updateAllOverlaysForTarget(@NonNull final String packageName, final int userId, |
| 203 | @Nullable final PackageInfo targetPackage) { |
| 204 | final List<OverlayInfo> ois = mSettings.getOverlaysForTarget(packageName, userId); |
| 205 | final int N = ois.size(); |
| 206 | for (int i = 0; i < N; i++) { |
| 207 | final OverlayInfo oi = ois.get(i); |
| 208 | final PackageInfo overlayPackage = mPackageManager.getPackageInfo(oi.packageName, userId); |
| 209 | if (overlayPackage == null) { |
| 210 | mSettings.remove(oi.packageName, oi.userId); |
| 211 | removeIdmapIfPossible(oi); |
| 212 | } else { |
| 213 | try { |
| 214 | updateState(targetPackage, overlayPackage, userId); |
| 215 | } catch (OverlayManagerSettings.BadKeyException e) { |
| 216 | Slog.e(TAG, "failed to update settings", e); |
| 217 | mSettings.remove(oi.packageName, userId); |
| 218 | } |
| 219 | } |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | void onOverlayPackageAdded(@NonNull final String packageName, final int userId) { |
| 224 | if (DEBUG) { |
| 225 | Slog.d(TAG, "onOverlayPackageAdded packageName=" + packageName + " userId=" + userId); |
| 226 | } |
| 227 | |
| 228 | final PackageInfo overlayPackage = mPackageManager.getPackageInfo(packageName, userId); |
| 229 | if (overlayPackage == null) { |
| 230 | Slog.w(TAG, "overlay package " + packageName + " was added, but couldn't be found"); |
| 231 | onOverlayPackageRemoved(packageName, userId); |
| 232 | return; |
| 233 | } |
| 234 | |
| 235 | final PackageInfo targetPackage = |
| 236 | mPackageManager.getPackageInfo(overlayPackage.overlayTarget, userId); |
| 237 | |
| 238 | mSettings.init(packageName, userId, overlayPackage.overlayTarget, |
| 239 | overlayPackage.applicationInfo.getBaseCodePath()); |
| 240 | try { |
| 241 | updateState(targetPackage, overlayPackage, userId); |
| 242 | } catch (OverlayManagerSettings.BadKeyException e) { |
| 243 | Slog.e(TAG, "failed to update settings", e); |
| 244 | mSettings.remove(packageName, userId); |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | void onOverlayPackageChanged(@NonNull final String packageName, final int userId) { |
| 249 | Slog.wtf(TAG, "onOverlayPackageChanged called, but only pre-installed overlays supported"); |
| 250 | } |
| 251 | |
| 252 | void onOverlayPackageUpgrading(@NonNull final String packageName, final int userId) { |
| 253 | Slog.wtf(TAG, "onOverlayPackageUpgrading called, but only pre-installed overlays supported"); |
| 254 | } |
| 255 | |
| 256 | void onOverlayPackageUpgraded(@NonNull final String packageName, final int userId) { |
| 257 | Slog.wtf(TAG, "onOverlayPackageUpgraded called, but only pre-installed overlays supported"); |
| 258 | } |
| 259 | |
| 260 | void onOverlayPackageRemoved(@NonNull final String packageName, final int userId) { |
| 261 | Slog.wtf(TAG, "onOverlayPackageRemoved called, but only pre-installed overlays supported"); |
| 262 | } |
| 263 | |
| 264 | OverlayInfo getOverlayInfo(@NonNull final String packageName, final int userId) { |
| 265 | try { |
| 266 | return mSettings.getOverlayInfo(packageName, userId); |
| 267 | } catch (OverlayManagerSettings.BadKeyException e) { |
| 268 | return null; |
| 269 | } |
| 270 | } |
| 271 | |
| 272 | List<OverlayInfo> getOverlayInfosForTarget(@NonNull final String targetPackageName, |
| 273 | final int userId) { |
| 274 | return mSettings.getOverlaysForTarget(targetPackageName, userId); |
| 275 | } |
| 276 | |
| 277 | Map<String, List<OverlayInfo>> getOverlaysForUser(final int userId) { |
| 278 | return mSettings.getOverlaysForUser(userId); |
| 279 | } |
| 280 | |
| 281 | boolean setEnabled(@NonNull final String packageName, final boolean enable, |
| 282 | final int userId) { |
| 283 | if (DEBUG) { |
| 284 | Slog.d(TAG, String.format("setEnabled packageName=%s enable=%s userId=%d", |
| 285 | packageName, enable, userId)); |
| 286 | } |
| 287 | |
| 288 | final PackageInfo overlayPackage = mPackageManager.getPackageInfo(packageName, userId); |
| 289 | if (overlayPackage == null) { |
| 290 | return false; |
| 291 | } |
Jaekyun Seok | 0434289 | 2017-03-02 15:24:19 +0900 | [diff] [blame] | 292 | // Static overlay is always being enabled. |
| 293 | if (!enable && overlayPackage.isStaticOverlay) { |
| 294 | return false; |
| 295 | } |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 296 | |
| 297 | try { |
| 298 | final OverlayInfo oi = mSettings.getOverlayInfo(packageName, userId); |
| 299 | final PackageInfo targetPackage = |
| 300 | mPackageManager.getPackageInfo(oi.targetPackageName, userId); |
| 301 | mSettings.setEnabled(packageName, userId, enable); |
| 302 | updateState(targetPackage, overlayPackage, userId); |
| 303 | return true; |
| 304 | } catch (OverlayManagerSettings.BadKeyException e) { |
| 305 | return false; |
| 306 | } |
| 307 | } |
| 308 | |
Jason Monk | 929ed8d | 2017-03-07 16:01:20 -0500 | [diff] [blame] | 309 | boolean setEnabledExclusive(@NonNull final String packageName, final boolean enable, |
| 310 | final int userId) { |
| 311 | if (DEBUG) { |
| 312 | Slog.d(TAG, String.format("setEnabled packageName=%s enable=%s userId=%d", |
| 313 | packageName, enable, userId)); |
| 314 | } |
| 315 | |
| 316 | final PackageInfo overlayPackage = mPackageManager.getPackageInfo(packageName, userId); |
| 317 | if (overlayPackage == null) { |
| 318 | return false; |
| 319 | } |
| 320 | |
| 321 | try { |
| 322 | final OverlayInfo oi = mSettings.getOverlayInfo(packageName, userId); |
| 323 | List<OverlayInfo> allOverlays = getOverlayInfosForTarget(oi.targetPackageName, userId); |
| 324 | |
| 325 | // Disable all other overlays. |
| 326 | allOverlays.remove(oi); |
| 327 | for (int i = 0; i < allOverlays.size(); i++) { |
| 328 | mSettings.setEnabled(allOverlays.get(i).packageName, userId, false); |
| 329 | } |
| 330 | |
| 331 | final PackageInfo targetPackage = |
| 332 | mPackageManager.getPackageInfo(oi.targetPackageName, userId); |
| 333 | mSettings.setEnabled(packageName, userId, enable); |
| 334 | updateState(targetPackage, overlayPackage, userId); |
| 335 | return true; |
| 336 | } catch (OverlayManagerSettings.BadKeyException e) { |
| 337 | return false; |
| 338 | } |
| 339 | } |
| 340 | |
Jaekyun Seok | 0434289 | 2017-03-02 15:24:19 +0900 | [diff] [blame] | 341 | boolean isPackageUpdatableOverlay(@NonNull final String packageName, final int userId) { |
| 342 | final PackageInfo overlayPackage = mPackageManager.getPackageInfo(packageName, userId); |
| 343 | if (overlayPackage == null || overlayPackage.isStaticOverlay) { |
| 344 | return false; |
| 345 | } |
| 346 | return true; |
| 347 | } |
| 348 | |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 349 | boolean setPriority(@NonNull final String packageName, |
| 350 | @NonNull final String newParentPackageName, final int userId) { |
Jaekyun Seok | 0434289 | 2017-03-02 15:24:19 +0900 | [diff] [blame] | 351 | return isPackageUpdatableOverlay(packageName, userId) && |
| 352 | mSettings.setPriority(packageName, newParentPackageName, userId); |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 353 | } |
| 354 | |
| 355 | boolean setHighestPriority(@NonNull final String packageName, final int userId) { |
Jaekyun Seok | 0434289 | 2017-03-02 15:24:19 +0900 | [diff] [blame] | 356 | return isPackageUpdatableOverlay(packageName, userId) && |
| 357 | mSettings.setHighestPriority(packageName, userId); |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 358 | } |
| 359 | |
| 360 | boolean setLowestPriority(@NonNull final String packageName, final int userId) { |
Jaekyun Seok | 0434289 | 2017-03-02 15:24:19 +0900 | [diff] [blame] | 361 | return isPackageUpdatableOverlay(packageName, userId) && |
| 362 | mSettings.setLowestPriority(packageName, userId); |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 363 | } |
| 364 | |
| 365 | void onDump(@NonNull final PrintWriter pw) { |
| 366 | mSettings.dump(pw); |
Adam Lesinski | a5ca624 | 2017-03-01 15:45:12 -0800 | [diff] [blame] | 367 | pw.println("Default overlays: " + TextUtils.join(";", mDefaultOverlays)); |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 368 | } |
| 369 | |
| 370 | List<String> getEnabledOverlayPackageNames(@NonNull final String targetPackageName, |
| 371 | final int userId) { |
| 372 | final List<OverlayInfo> overlays = mSettings.getOverlaysForTarget(targetPackageName, userId); |
| 373 | final List<String> paths = new ArrayList<>(overlays.size()); |
| 374 | final int N = overlays.size(); |
| 375 | for (int i = 0; i < N; i++) { |
| 376 | final OverlayInfo oi = overlays.get(i); |
| 377 | if (oi.isEnabled()) { |
| 378 | paths.add(oi.packageName); |
| 379 | } |
| 380 | } |
| 381 | return paths; |
| 382 | } |
| 383 | |
| 384 | private void updateState(@Nullable final PackageInfo targetPackage, |
| 385 | @NonNull final PackageInfo overlayPackage, final int userId) |
| 386 | throws OverlayManagerSettings.BadKeyException { |
Jaekyun Seok | 0434289 | 2017-03-02 15:24:19 +0900 | [diff] [blame] | 387 | // Static RROs targeting to "android", ie framework-res.apk, are handled by native layers. |
| 388 | if (targetPackage != null && |
| 389 | !("android".equals(targetPackage.packageName) && overlayPackage.isStaticOverlay)) { |
Mårten Kongstad | eabc9e9 | 2015-12-15 16:40:23 +0100 | [diff] [blame] | 390 | mIdmapManager.createIdmap(targetPackage, overlayPackage, userId); |
| 391 | } |
| 392 | |
| 393 | mSettings.setBaseCodePath(overlayPackage.packageName, userId, |
| 394 | overlayPackage.applicationInfo.getBaseCodePath()); |
| 395 | |
| 396 | final int currentState = mSettings.getState(overlayPackage.packageName, userId); |
| 397 | final int newState = calculateNewState(targetPackage, overlayPackage, userId); |
| 398 | if (currentState != newState) { |
| 399 | if (DEBUG) { |
| 400 | Slog.d(TAG, String.format("%s:%d: %s -> %s", |
| 401 | overlayPackage.packageName, userId, |
| 402 | OverlayInfo.stateToString(currentState), |
| 403 | OverlayInfo.stateToString(newState))); |
| 404 | } |
| 405 | mSettings.setState(overlayPackage.packageName, userId, newState); |
| 406 | } |
| 407 | } |
| 408 | |
| 409 | private int calculateNewState(@Nullable final PackageInfo targetPackage, |
| 410 | @NonNull final PackageInfo overlayPackage, final int userId) |
| 411 | throws OverlayManagerSettings.BadKeyException { |
| 412 | if (targetPackage == null) { |
| 413 | return STATE_MISSING_TARGET; |
| 414 | } |
| 415 | |
| 416 | if (!mIdmapManager.idmapExists(overlayPackage, userId)) { |
| 417 | return STATE_NO_IDMAP; |
| 418 | } |
| 419 | |
| 420 | final boolean enabled = mSettings.getEnabled(overlayPackage.packageName, userId); |
| 421 | return enabled ? STATE_ENABLED : STATE_DISABLED; |
| 422 | } |
| 423 | |
| 424 | private void removeIdmapIfPossible(@NonNull final OverlayInfo oi) { |
| 425 | // For a given package, all Android users share the same idmap file. |
| 426 | // This works because Android currently does not support users to |
| 427 | // install different versions of the same package. It also means we |
| 428 | // cannot remove an idmap file if any user still needs it. |
| 429 | // |
| 430 | // When/if the Android framework allows different versions of the same |
| 431 | // package to be installed for different users, idmap file handling |
| 432 | // should be revised: |
| 433 | // |
| 434 | // - an idmap file should be unique for each {user, package} pair |
| 435 | // |
| 436 | // - the path to the idmap file should be passed to the native Asset |
| 437 | // Manager layers, just like the path to the apk is passed today |
| 438 | // |
| 439 | // As part of that change, calls to this method should be replaced by |
| 440 | // direct calls to IdmapManager.removeIdmap, without looping over all |
| 441 | // users. |
| 442 | |
| 443 | if (!mIdmapManager.idmapExists(oi)) { |
| 444 | return; |
| 445 | } |
| 446 | final List<Integer> userIds = mSettings.getUsers(); |
| 447 | final int N = userIds.size(); |
| 448 | for (int i = 0; i < N; i++) { |
| 449 | final int userId = userIds.get(i); |
| 450 | try { |
| 451 | final OverlayInfo tmp = mSettings.getOverlayInfo(oi.packageName, userId); |
| 452 | if (tmp != null && tmp.isEnabled()) { |
| 453 | // someone is still using the idmap file -> we cannot remove it |
| 454 | return; |
| 455 | } |
| 456 | } catch (OverlayManagerSettings.BadKeyException e) { |
| 457 | // intentionally left empty |
| 458 | } |
| 459 | } |
| 460 | mIdmapManager.removeIdmap(oi, oi.userId); |
| 461 | } |
| 462 | |
| 463 | interface PackageManagerHelper { |
| 464 | PackageInfo getPackageInfo(@NonNull String packageName, int userId); |
| 465 | boolean signaturesMatching(@NonNull String packageName1, @NonNull String packageName2, |
| 466 | int userId); |
| 467 | List<PackageInfo> getOverlayPackages(int userId); |
| 468 | } |
| 469 | } |