John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 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 | |
| 17 | package com.android.server.notification; |
| 18 | |
| 19 | import android.app.ActivityManager; |
| 20 | import android.app.PendingIntent; |
| 21 | import android.content.ComponentName; |
| 22 | import android.content.ContentResolver; |
| 23 | import android.content.Context; |
| 24 | import android.content.Intent; |
| 25 | import android.content.ServiceConnection; |
| 26 | import android.content.pm.ApplicationInfo; |
| 27 | import android.content.pm.PackageManager; |
| 28 | import android.content.pm.PackageManager.NameNotFoundException; |
| 29 | import android.content.pm.ResolveInfo; |
| 30 | import android.content.pm.ServiceInfo; |
| 31 | import android.content.pm.UserInfo; |
| 32 | import android.database.ContentObserver; |
| 33 | import android.net.Uri; |
| 34 | import android.os.Build; |
| 35 | import android.os.Handler; |
| 36 | import android.os.IBinder; |
| 37 | import android.os.IInterface; |
| 38 | import android.os.RemoteException; |
| 39 | import android.os.UserHandle; |
| 40 | import android.os.UserManager; |
| 41 | import android.provider.Settings; |
| 42 | import android.text.TextUtils; |
| 43 | import android.util.ArraySet; |
John Spurlock | 4db0d98 | 2014-08-13 09:19:03 -0400 | [diff] [blame^] | 44 | import android.util.Log; |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 45 | import android.util.Slog; |
| 46 | import android.util.SparseArray; |
| 47 | |
John Spurlock | 25e2d24 | 2014-06-27 13:58:23 -0400 | [diff] [blame] | 48 | import com.android.server.notification.NotificationManagerService.DumpFilter; |
| 49 | |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 50 | import java.io.PrintWriter; |
| 51 | import java.util.ArrayList; |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 52 | import java.util.Arrays; |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 53 | import java.util.List; |
| 54 | import java.util.Set; |
| 55 | |
| 56 | /** |
| 57 | * Manages the lifecycle of application-provided services bound by system server. |
| 58 | * |
| 59 | * Services managed by this helper must have: |
| 60 | * - An associated system settings value with a list of enabled component names. |
| 61 | * - A well-known action for services to use in their intent-filter. |
| 62 | * - A system permission for services to require in order to ensure system has exclusive binding. |
| 63 | * - A settings page for user configuration of enabled services, and associated intent action. |
| 64 | * - A remote interface definition (aidl) provided by the service used for communication. |
| 65 | */ |
| 66 | abstract public class ManagedServices { |
| 67 | protected final String TAG = getClass().getSimpleName(); |
John Spurlock | 4db0d98 | 2014-08-13 09:19:03 -0400 | [diff] [blame^] | 68 | protected final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 69 | |
| 70 | private static final String ENABLED_SERVICES_SEPARATOR = ":"; |
| 71 | |
John Spurlock | af8d6c4 | 2014-05-07 17:49:08 -0400 | [diff] [blame] | 72 | protected final Context mContext; |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 73 | protected final Object mMutex; |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 74 | private final UserProfiles mUserProfiles; |
| 75 | private final SettingsObserver mSettingsObserver; |
| 76 | private final Config mConfig; |
| 77 | |
| 78 | // contains connections to all connected services, including app services |
| 79 | // and system services |
| 80 | protected final ArrayList<ManagedServiceInfo> mServices = new ArrayList<ManagedServiceInfo>(); |
| 81 | // things that will be put into mServices as soon as they're ready |
| 82 | private final ArrayList<String> mServicesBinding = new ArrayList<String>(); |
| 83 | // lists the component names of all enabled (and therefore connected) |
| 84 | // app services for current profiles. |
| 85 | private ArraySet<ComponentName> mEnabledServicesForCurrentProfiles |
| 86 | = new ArraySet<ComponentName>(); |
| 87 | // Just the packages from mEnabledServicesForCurrentProfiles |
| 88 | private ArraySet<String> mEnabledServicesPackageNames = new ArraySet<String>(); |
| 89 | |
| 90 | public ManagedServices(Context context, Handler handler, Object mutex, |
| 91 | UserProfiles userProfiles) { |
| 92 | mContext = context; |
| 93 | mMutex = mutex; |
| 94 | mUserProfiles = userProfiles; |
| 95 | mConfig = getConfig(); |
| 96 | mSettingsObserver = new SettingsObserver(handler); |
| 97 | } |
| 98 | |
| 99 | abstract protected Config getConfig(); |
| 100 | |
| 101 | private String getCaption() { |
| 102 | return mConfig.caption; |
| 103 | } |
| 104 | |
| 105 | abstract protected IInterface asInterface(IBinder binder); |
| 106 | |
John Spurlock | 3b98b3f | 2014-05-01 09:08:48 -0400 | [diff] [blame] | 107 | abstract protected void onServiceAdded(ManagedServiceInfo info); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 108 | |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 109 | protected void onServiceRemovedLocked(ManagedServiceInfo removed) { } |
| 110 | |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 111 | private ManagedServiceInfo newServiceInfo(IInterface service, |
| 112 | ComponentName component, int userid, boolean isSystem, ServiceConnection connection, |
| 113 | int targetSdkVersion) { |
| 114 | return new ManagedServiceInfo(service, component, userid, isSystem, connection, |
| 115 | targetSdkVersion); |
| 116 | } |
| 117 | |
| 118 | public void onBootPhaseAppsCanStart() { |
| 119 | mSettingsObserver.observe(); |
| 120 | } |
| 121 | |
John Spurlock | 25e2d24 | 2014-06-27 13:58:23 -0400 | [diff] [blame] | 122 | public void dump(PrintWriter pw, DumpFilter filter) { |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 123 | pw.println(" All " + getCaption() + "s (" + mEnabledServicesForCurrentProfiles.size() |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 124 | + ") enabled for current profiles:"); |
| 125 | for (ComponentName cmpt : mEnabledServicesForCurrentProfiles) { |
John Spurlock | 25e2d24 | 2014-06-27 13:58:23 -0400 | [diff] [blame] | 126 | if (filter != null && !filter.matches(cmpt)) continue; |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 127 | pw.println(" " + cmpt); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 128 | } |
| 129 | |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 130 | pw.println(" Live " + getCaption() + "s (" + mServices.size() + "):"); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 131 | for (ManagedServiceInfo info : mServices) { |
John Spurlock | 25e2d24 | 2014-06-27 13:58:23 -0400 | [diff] [blame] | 132 | if (filter != null && !filter.matches(info.component)) continue; |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 133 | pw.println(" " + info.component |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 134 | + " (user " + info.userid + "): " + info.service |
| 135 | + (info.isSystem?" SYSTEM":"")); |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | public void onPackagesChanged(boolean queryReplace, String[] pkgList) { |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 140 | if (DEBUG) Slog.d(TAG, "onPackagesChanged queryReplace=" + queryReplace |
| 141 | + " pkgList=" + (pkgList == null ? null : Arrays.asList(pkgList)) |
| 142 | + " mEnabledServicesPackageNames=" + mEnabledServicesPackageNames); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 143 | boolean anyServicesInvolved = false; |
| 144 | if (pkgList != null && (pkgList.length > 0)) { |
| 145 | for (String pkgName : pkgList) { |
| 146 | if (mEnabledServicesPackageNames.contains(pkgName)) { |
| 147 | anyServicesInvolved = true; |
| 148 | } |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | if (anyServicesInvolved) { |
| 153 | // if we're not replacing a package, clean up orphaned bits |
| 154 | if (!queryReplace) { |
| 155 | disableNonexistentServices(); |
| 156 | } |
| 157 | // make sure we're still bound to any of our services who may have just upgraded |
| 158 | rebindServices(); |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | public ManagedServiceInfo checkServiceTokenLocked(IInterface service) { |
| 163 | checkNotNull(service); |
| 164 | final IBinder token = service.asBinder(); |
| 165 | final int N = mServices.size(); |
| 166 | for (int i=0; i<N; i++) { |
| 167 | final ManagedServiceInfo info = mServices.get(i); |
| 168 | if (info.service.asBinder() == token) return info; |
| 169 | } |
| 170 | throw new SecurityException("Disallowed call from unknown " + getCaption() + ": " |
| 171 | + service); |
| 172 | } |
| 173 | |
| 174 | public void unregisterService(IInterface service, int userid) { |
| 175 | checkNotNull(service); |
| 176 | // no need to check permissions; if your service binder is in the list, |
| 177 | // that's proof that you had permission to add it in the first place |
| 178 | unregisterServiceImpl(service, userid); |
| 179 | } |
| 180 | |
| 181 | public void registerService(IInterface service, ComponentName component, int userid) { |
| 182 | checkNotNull(service); |
Christoph Studer | 3e144d3 | 2014-05-22 16:48:40 +0200 | [diff] [blame] | 183 | ManagedServiceInfo info = registerServiceImpl(service, component, userid); |
| 184 | if (info != null) { |
| 185 | onServiceAdded(info); |
| 186 | } |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 187 | } |
| 188 | |
| 189 | /** |
| 190 | * Remove access for any services that no longer exist. |
| 191 | */ |
| 192 | private void disableNonexistentServices() { |
| 193 | int[] userIds = mUserProfiles.getCurrentProfileIds(); |
| 194 | final int N = userIds.length; |
| 195 | for (int i = 0 ; i < N; ++i) { |
| 196 | disableNonexistentServices(userIds[i]); |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | private void disableNonexistentServices(int userId) { |
| 201 | String flatIn = Settings.Secure.getStringForUser( |
| 202 | mContext.getContentResolver(), |
| 203 | mConfig.secureSettingName, |
| 204 | userId); |
| 205 | if (!TextUtils.isEmpty(flatIn)) { |
| 206 | if (DEBUG) Slog.v(TAG, "flat before: " + flatIn); |
| 207 | PackageManager pm = mContext.getPackageManager(); |
| 208 | List<ResolveInfo> installedServices = pm.queryIntentServicesAsUser( |
| 209 | new Intent(mConfig.serviceInterface), |
| 210 | PackageManager.GET_SERVICES | PackageManager.GET_META_DATA, |
| 211 | userId); |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 212 | if (DEBUG) Slog.v(TAG, mConfig.serviceInterface + " services: " + installedServices); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 213 | Set<ComponentName> installed = new ArraySet<ComponentName>(); |
| 214 | for (int i = 0, count = installedServices.size(); i < count; i++) { |
| 215 | ResolveInfo resolveInfo = installedServices.get(i); |
| 216 | ServiceInfo info = resolveInfo.serviceInfo; |
| 217 | |
| 218 | if (!mConfig.bindPermission.equals(info.permission)) { |
| 219 | Slog.w(TAG, "Skipping " + getCaption() + " service " |
| 220 | + info.packageName + "/" + info.name |
| 221 | + ": it does not require the permission " |
| 222 | + mConfig.bindPermission); |
| 223 | continue; |
| 224 | } |
| 225 | installed.add(new ComponentName(info.packageName, info.name)); |
| 226 | } |
| 227 | |
| 228 | String flatOut = ""; |
| 229 | if (!installed.isEmpty()) { |
| 230 | String[] enabled = flatIn.split(ENABLED_SERVICES_SEPARATOR); |
| 231 | ArrayList<String> remaining = new ArrayList<String>(enabled.length); |
| 232 | for (int i = 0; i < enabled.length; i++) { |
| 233 | ComponentName enabledComponent = ComponentName.unflattenFromString(enabled[i]); |
| 234 | if (installed.contains(enabledComponent)) { |
| 235 | remaining.add(enabled[i]); |
| 236 | } |
| 237 | } |
| 238 | flatOut = TextUtils.join(ENABLED_SERVICES_SEPARATOR, remaining); |
| 239 | } |
| 240 | if (DEBUG) Slog.v(TAG, "flat after: " + flatOut); |
| 241 | if (!flatIn.equals(flatOut)) { |
| 242 | Settings.Secure.putStringForUser(mContext.getContentResolver(), |
| 243 | mConfig.secureSettingName, |
| 244 | flatOut, userId); |
| 245 | } |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Called whenever packages change, the user switches, or the secure setting |
| 251 | * is altered. (For example in response to USER_SWITCHED in our broadcast receiver) |
| 252 | */ |
| 253 | private void rebindServices() { |
| 254 | if (DEBUG) Slog.d(TAG, "rebindServices"); |
| 255 | final int[] userIds = mUserProfiles.getCurrentProfileIds(); |
| 256 | final int nUserIds = userIds.length; |
| 257 | |
| 258 | final SparseArray<String> flat = new SparseArray<String>(); |
| 259 | |
| 260 | for (int i = 0; i < nUserIds; ++i) { |
| 261 | flat.put(userIds[i], Settings.Secure.getStringForUser( |
| 262 | mContext.getContentResolver(), |
| 263 | mConfig.secureSettingName, |
| 264 | userIds[i])); |
| 265 | } |
| 266 | |
Christoph Studer | 5d42384 | 2014-05-23 13:15:54 +0200 | [diff] [blame] | 267 | ArrayList<ManagedServiceInfo> toRemove = new ArrayList<ManagedServiceInfo>(); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 268 | final SparseArray<ArrayList<ComponentName>> toAdd |
| 269 | = new SparseArray<ArrayList<ComponentName>>(); |
| 270 | |
| 271 | synchronized (mMutex) { |
Christoph Studer | 5d42384 | 2014-05-23 13:15:54 +0200 | [diff] [blame] | 272 | // Unbind automatically bound services, retain system services. |
| 273 | for (ManagedServiceInfo service : mServices) { |
| 274 | if (!service.isSystem) { |
| 275 | toRemove.add(service); |
| 276 | } |
| 277 | } |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 278 | |
| 279 | final ArraySet<ComponentName> newEnabled = new ArraySet<ComponentName>(); |
| 280 | final ArraySet<String> newPackages = new ArraySet<String>(); |
| 281 | |
| 282 | for (int i = 0; i < nUserIds; ++i) { |
| 283 | final ArrayList<ComponentName> add = new ArrayList<ComponentName>(); |
| 284 | toAdd.put(userIds[i], add); |
| 285 | |
| 286 | // decode the list of components |
| 287 | String toDecode = flat.get(userIds[i]); |
| 288 | if (toDecode != null) { |
| 289 | String[] components = toDecode.split(ENABLED_SERVICES_SEPARATOR); |
| 290 | for (int j = 0; j < components.length; j++) { |
| 291 | final ComponentName component |
| 292 | = ComponentName.unflattenFromString(components[j]); |
| 293 | if (component != null) { |
| 294 | newEnabled.add(component); |
| 295 | add.add(component); |
| 296 | newPackages.add(component.getPackageName()); |
| 297 | } |
| 298 | } |
| 299 | |
| 300 | } |
| 301 | } |
| 302 | mEnabledServicesForCurrentProfiles = newEnabled; |
| 303 | mEnabledServicesPackageNames = newPackages; |
| 304 | } |
| 305 | |
| 306 | for (ManagedServiceInfo info : toRemove) { |
| 307 | final ComponentName component = info.component; |
| 308 | final int oldUser = info.userid; |
| 309 | Slog.v(TAG, "disabling " + getCaption() + " for user " |
| 310 | + oldUser + ": " + component); |
| 311 | unregisterService(component, info.userid); |
| 312 | } |
| 313 | |
| 314 | for (int i = 0; i < nUserIds; ++i) { |
| 315 | final ArrayList<ComponentName> add = toAdd.get(userIds[i]); |
| 316 | final int N = add.size(); |
| 317 | for (int j = 0; j < N; j++) { |
| 318 | final ComponentName component = add.get(j); |
| 319 | Slog.v(TAG, "enabling " + getCaption() + " for user " + userIds[i] + ": " |
| 320 | + component); |
| 321 | registerService(component, userIds[i]); |
| 322 | } |
| 323 | } |
| 324 | } |
| 325 | |
| 326 | /** |
| 327 | * Version of registerService that takes the name of a service component to bind to. |
| 328 | */ |
| 329 | private void registerService(final ComponentName name, final int userid) { |
| 330 | if (DEBUG) Slog.v(TAG, "registerService: " + name + " u=" + userid); |
| 331 | |
| 332 | synchronized (mMutex) { |
| 333 | final String servicesBindingTag = name.toString() + "/" + userid; |
| 334 | if (mServicesBinding.contains(servicesBindingTag)) { |
| 335 | // stop registering this thing already! we're working on it |
| 336 | return; |
| 337 | } |
| 338 | mServicesBinding.add(servicesBindingTag); |
| 339 | |
| 340 | final int N = mServices.size(); |
| 341 | for (int i=N-1; i>=0; i--) { |
| 342 | final ManagedServiceInfo info = mServices.get(i); |
| 343 | if (name.equals(info.component) |
| 344 | && info.userid == userid) { |
| 345 | // cut old connections |
| 346 | if (DEBUG) Slog.v(TAG, " disconnecting old " + getCaption() + ": " |
| 347 | + info.service); |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 348 | removeServiceLocked(i); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 349 | if (info.connection != null) { |
| 350 | mContext.unbindService(info.connection); |
| 351 | } |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | Intent intent = new Intent(mConfig.serviceInterface); |
| 356 | intent.setComponent(name); |
| 357 | |
| 358 | intent.putExtra(Intent.EXTRA_CLIENT_LABEL, mConfig.clientLabel); |
| 359 | |
| 360 | final PendingIntent pendingIntent = PendingIntent.getActivity( |
| 361 | mContext, 0, new Intent(mConfig.settingsAction), 0); |
| 362 | intent.putExtra(Intent.EXTRA_CLIENT_INTENT, pendingIntent); |
| 363 | |
| 364 | ApplicationInfo appInfo = null; |
| 365 | try { |
| 366 | appInfo = mContext.getPackageManager().getApplicationInfo( |
| 367 | name.getPackageName(), 0); |
| 368 | } catch (NameNotFoundException e) { |
| 369 | // Ignore if the package doesn't exist we won't be able to bind to the service. |
| 370 | } |
| 371 | final int targetSdkVersion = |
| 372 | appInfo != null ? appInfo.targetSdkVersion : Build.VERSION_CODES.BASE; |
| 373 | |
| 374 | try { |
| 375 | if (DEBUG) Slog.v(TAG, "binding: " + intent); |
| 376 | if (!mContext.bindServiceAsUser(intent, |
| 377 | new ServiceConnection() { |
| 378 | IInterface mService; |
| 379 | |
| 380 | @Override |
| 381 | public void onServiceConnected(ComponentName name, IBinder binder) { |
| 382 | boolean added = false; |
John Spurlock | 3b98b3f | 2014-05-01 09:08:48 -0400 | [diff] [blame] | 383 | ManagedServiceInfo info = null; |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 384 | synchronized (mMutex) { |
| 385 | mServicesBinding.remove(servicesBindingTag); |
| 386 | try { |
| 387 | mService = asInterface(binder); |
John Spurlock | 3b98b3f | 2014-05-01 09:08:48 -0400 | [diff] [blame] | 388 | info = newServiceInfo(mService, name, |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 389 | userid, false /*isSystem*/, this, targetSdkVersion); |
| 390 | binder.linkToDeath(info, 0); |
| 391 | added = mServices.add(info); |
| 392 | } catch (RemoteException e) { |
| 393 | // already dead |
| 394 | } |
| 395 | } |
| 396 | if (added) { |
John Spurlock | 3b98b3f | 2014-05-01 09:08:48 -0400 | [diff] [blame] | 397 | onServiceAdded(info); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 398 | } |
| 399 | } |
| 400 | |
| 401 | @Override |
| 402 | public void onServiceDisconnected(ComponentName name) { |
| 403 | Slog.v(TAG, getCaption() + " connection lost: " + name); |
| 404 | } |
| 405 | }, |
| 406 | Context.BIND_AUTO_CREATE, |
| 407 | new UserHandle(userid))) |
| 408 | { |
| 409 | mServicesBinding.remove(servicesBindingTag); |
| 410 | Slog.w(TAG, "Unable to bind " + getCaption() + " service: " + intent); |
| 411 | return; |
| 412 | } |
| 413 | } catch (SecurityException ex) { |
| 414 | Slog.e(TAG, "Unable to bind " + getCaption() + " service: " + intent, ex); |
| 415 | return; |
| 416 | } |
| 417 | } |
| 418 | } |
| 419 | |
| 420 | /** |
| 421 | * Remove a service for the given user by ComponentName |
| 422 | */ |
| 423 | private void unregisterService(ComponentName name, int userid) { |
| 424 | synchronized (mMutex) { |
| 425 | final int N = mServices.size(); |
| 426 | for (int i=N-1; i>=0; i--) { |
| 427 | final ManagedServiceInfo info = mServices.get(i); |
| 428 | if (name.equals(info.component) |
| 429 | && info.userid == userid) { |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 430 | removeServiceLocked(i); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 431 | if (info.connection != null) { |
| 432 | try { |
| 433 | mContext.unbindService(info.connection); |
| 434 | } catch (IllegalArgumentException ex) { |
| 435 | // something happened to the service: we think we have a connection |
| 436 | // but it's bogus. |
| 437 | Slog.e(TAG, getCaption() + " " + name + " could not be unbound: " + ex); |
| 438 | } |
| 439 | } |
| 440 | } |
| 441 | } |
| 442 | } |
| 443 | } |
| 444 | |
| 445 | /** |
| 446 | * Removes a service from the list but does not unbind |
| 447 | * |
| 448 | * @return the removed service. |
| 449 | */ |
| 450 | private ManagedServiceInfo removeServiceImpl(IInterface service, final int userid) { |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 451 | if (DEBUG) Slog.d(TAG, "removeServiceImpl service=" + service + " u=" + userid); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 452 | ManagedServiceInfo serviceInfo = null; |
| 453 | synchronized (mMutex) { |
| 454 | final int N = mServices.size(); |
| 455 | for (int i=N-1; i>=0; i--) { |
| 456 | final ManagedServiceInfo info = mServices.get(i); |
| 457 | if (info.service.asBinder() == service.asBinder() |
| 458 | && info.userid == userid) { |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 459 | if (DEBUG) Slog.d(TAG, "Removing active service " + info.component); |
| 460 | serviceInfo = removeServiceLocked(i); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 461 | } |
| 462 | } |
| 463 | } |
| 464 | return serviceInfo; |
| 465 | } |
| 466 | |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 467 | private ManagedServiceInfo removeServiceLocked(int i) { |
| 468 | final ManagedServiceInfo info = mServices.remove(i); |
| 469 | onServiceRemovedLocked(info); |
| 470 | return info; |
| 471 | } |
| 472 | |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 473 | private void checkNotNull(IInterface service) { |
| 474 | if (service == null) { |
| 475 | throw new IllegalArgumentException(getCaption() + " must not be null"); |
| 476 | } |
| 477 | } |
| 478 | |
Christoph Studer | 3e144d3 | 2014-05-22 16:48:40 +0200 | [diff] [blame] | 479 | private ManagedServiceInfo registerServiceImpl(final IInterface service, |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 480 | final ComponentName component, final int userid) { |
| 481 | synchronized (mMutex) { |
| 482 | try { |
| 483 | ManagedServiceInfo info = newServiceInfo(service, component, userid, |
| 484 | true /*isSystem*/, null, Build.VERSION_CODES.L); |
| 485 | service.asBinder().linkToDeath(info, 0); |
| 486 | mServices.add(info); |
Christoph Studer | 3e144d3 | 2014-05-22 16:48:40 +0200 | [diff] [blame] | 487 | return info; |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 488 | } catch (RemoteException e) { |
| 489 | // already dead |
| 490 | } |
| 491 | } |
Christoph Studer | 3e144d3 | 2014-05-22 16:48:40 +0200 | [diff] [blame] | 492 | return null; |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 493 | } |
| 494 | |
| 495 | /** |
| 496 | * Removes a service from the list and unbinds. |
| 497 | */ |
| 498 | private void unregisterServiceImpl(IInterface service, int userid) { |
| 499 | ManagedServiceInfo info = removeServiceImpl(service, userid); |
| 500 | if (info != null && info.connection != null) { |
| 501 | mContext.unbindService(info.connection); |
| 502 | } |
| 503 | } |
| 504 | |
| 505 | private class SettingsObserver extends ContentObserver { |
| 506 | private final Uri mSecureSettingsUri = Settings.Secure.getUriFor(mConfig.secureSettingName); |
| 507 | |
| 508 | private SettingsObserver(Handler handler) { |
| 509 | super(handler); |
| 510 | } |
| 511 | |
| 512 | private void observe() { |
| 513 | ContentResolver resolver = mContext.getContentResolver(); |
| 514 | resolver.registerContentObserver(mSecureSettingsUri, |
| 515 | false, this, UserHandle.USER_ALL); |
| 516 | update(null); |
| 517 | } |
| 518 | |
| 519 | @Override |
| 520 | public void onChange(boolean selfChange, Uri uri) { |
| 521 | update(uri); |
| 522 | } |
| 523 | |
| 524 | private void update(Uri uri) { |
| 525 | if (uri == null || mSecureSettingsUri.equals(uri)) { |
| 526 | rebindServices(); |
| 527 | } |
| 528 | } |
| 529 | } |
| 530 | |
| 531 | public class ManagedServiceInfo implements IBinder.DeathRecipient { |
| 532 | public IInterface service; |
| 533 | public ComponentName component; |
| 534 | public int userid; |
| 535 | public boolean isSystem; |
| 536 | public ServiceConnection connection; |
| 537 | public int targetSdkVersion; |
| 538 | |
| 539 | public ManagedServiceInfo(IInterface service, ComponentName component, |
| 540 | int userid, boolean isSystem, ServiceConnection connection, int targetSdkVersion) { |
| 541 | this.service = service; |
| 542 | this.component = component; |
| 543 | this.userid = userid; |
| 544 | this.isSystem = isSystem; |
| 545 | this.connection = connection; |
| 546 | this.targetSdkVersion = targetSdkVersion; |
| 547 | } |
| 548 | |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 549 | @Override |
| 550 | public String toString() { |
| 551 | return new StringBuilder("ManagedServiceInfo[") |
| 552 | .append("component=").append(component) |
| 553 | .append(",userid=").append(userid) |
| 554 | .append(",isSystem=").append(isSystem) |
| 555 | .append(",targetSdkVersion=").append(targetSdkVersion) |
| 556 | .append(",connection=").append(connection == null ? null : "<connection>") |
| 557 | .append(",service=").append(service) |
| 558 | .append(']').toString(); |
| 559 | } |
| 560 | |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 561 | public boolean enabledAndUserMatches(int nid) { |
| 562 | if (!isEnabledForCurrentProfiles()) { |
| 563 | return false; |
| 564 | } |
| 565 | if (this.userid == UserHandle.USER_ALL) return true; |
| 566 | if (nid == UserHandle.USER_ALL || nid == this.userid) return true; |
| 567 | return supportsProfiles() && mUserProfiles.isCurrentProfile(nid); |
| 568 | } |
| 569 | |
| 570 | public boolean supportsProfiles() { |
| 571 | return targetSdkVersion >= Build.VERSION_CODES.L; |
| 572 | } |
| 573 | |
| 574 | @Override |
| 575 | public void binderDied() { |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 576 | if (DEBUG) Slog.d(TAG, "binderDied"); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 577 | // Remove the service, but don't unbind from the service. The system will bring the |
| 578 | // service back up, and the onServiceConnected handler will readd the service with the |
| 579 | // new binding. If this isn't a bound service, and is just a registered |
| 580 | // service, just removing it from the list is all we need to do anyway. |
| 581 | removeServiceImpl(this.service, this.userid); |
| 582 | } |
| 583 | |
| 584 | /** convenience method for looking in mEnabledServicesForCurrentProfiles */ |
| 585 | public boolean isEnabledForCurrentProfiles() { |
| 586 | if (this.isSystem) return true; |
| 587 | if (this.connection == null) return false; |
| 588 | return mEnabledServicesForCurrentProfiles.contains(this.component); |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | public static class UserProfiles { |
| 593 | // Profiles of the current user. |
| 594 | private final SparseArray<UserInfo> mCurrentProfiles = new SparseArray<UserInfo>(); |
| 595 | |
| 596 | public void updateCache(Context context) { |
| 597 | UserManager userManager = (UserManager) context.getSystemService(Context.USER_SERVICE); |
| 598 | if (userManager != null) { |
| 599 | int currentUserId = ActivityManager.getCurrentUser(); |
| 600 | List<UserInfo> profiles = userManager.getProfiles(currentUserId); |
| 601 | synchronized (mCurrentProfiles) { |
| 602 | mCurrentProfiles.clear(); |
| 603 | for (UserInfo user : profiles) { |
| 604 | mCurrentProfiles.put(user.id, user); |
| 605 | } |
| 606 | } |
| 607 | } |
| 608 | } |
| 609 | |
| 610 | public int[] getCurrentProfileIds() { |
| 611 | synchronized (mCurrentProfiles) { |
| 612 | int[] users = new int[mCurrentProfiles.size()]; |
| 613 | final int N = mCurrentProfiles.size(); |
| 614 | for (int i = 0; i < N; ++i) { |
| 615 | users[i] = mCurrentProfiles.keyAt(i); |
| 616 | } |
| 617 | return users; |
| 618 | } |
| 619 | } |
| 620 | |
| 621 | public boolean isCurrentProfile(int userId) { |
| 622 | synchronized (mCurrentProfiles) { |
| 623 | return mCurrentProfiles.get(userId) != null; |
| 624 | } |
| 625 | } |
| 626 | } |
| 627 | |
| 628 | protected static class Config { |
| 629 | String caption; |
| 630 | String serviceInterface; |
| 631 | String secureSettingName; |
| 632 | String bindPermission; |
| 633 | String settingsAction; |
| 634 | int clientLabel; |
| 635 | } |
| 636 | } |