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 | |
Christoph Studer | b53dfd4 | 2014-09-12 14:45:59 +0200 | [diff] [blame] | 90 | // Kept to de-dupe user change events (experienced after boot, when we receive a settings and a |
| 91 | // user change). |
| 92 | private int[] mLastSeenProfileIds; |
| 93 | |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 94 | public ManagedServices(Context context, Handler handler, Object mutex, |
| 95 | UserProfiles userProfiles) { |
| 96 | mContext = context; |
| 97 | mMutex = mutex; |
| 98 | mUserProfiles = userProfiles; |
| 99 | mConfig = getConfig(); |
| 100 | mSettingsObserver = new SettingsObserver(handler); |
| 101 | } |
| 102 | |
| 103 | abstract protected Config getConfig(); |
| 104 | |
| 105 | private String getCaption() { |
| 106 | return mConfig.caption; |
| 107 | } |
| 108 | |
| 109 | abstract protected IInterface asInterface(IBinder binder); |
| 110 | |
John Spurlock | 3b98b3f | 2014-05-01 09:08:48 -0400 | [diff] [blame] | 111 | abstract protected void onServiceAdded(ManagedServiceInfo info); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 112 | |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 113 | protected void onServiceRemovedLocked(ManagedServiceInfo removed) { } |
| 114 | |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 115 | private ManagedServiceInfo newServiceInfo(IInterface service, |
| 116 | ComponentName component, int userid, boolean isSystem, ServiceConnection connection, |
| 117 | int targetSdkVersion) { |
| 118 | return new ManagedServiceInfo(service, component, userid, isSystem, connection, |
| 119 | targetSdkVersion); |
| 120 | } |
| 121 | |
| 122 | public void onBootPhaseAppsCanStart() { |
| 123 | mSettingsObserver.observe(); |
| 124 | } |
| 125 | |
John Spurlock | 25e2d24 | 2014-06-27 13:58:23 -0400 | [diff] [blame] | 126 | public void dump(PrintWriter pw, DumpFilter filter) { |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 127 | pw.println(" All " + getCaption() + "s (" + mEnabledServicesForCurrentProfiles.size() |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 128 | + ") enabled for current profiles:"); |
| 129 | for (ComponentName cmpt : mEnabledServicesForCurrentProfiles) { |
John Spurlock | 25e2d24 | 2014-06-27 13:58:23 -0400 | [diff] [blame] | 130 | if (filter != null && !filter.matches(cmpt)) continue; |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 131 | pw.println(" " + cmpt); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 132 | } |
| 133 | |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 134 | pw.println(" Live " + getCaption() + "s (" + mServices.size() + "):"); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 135 | for (ManagedServiceInfo info : mServices) { |
John Spurlock | 25e2d24 | 2014-06-27 13:58:23 -0400 | [diff] [blame] | 136 | if (filter != null && !filter.matches(info.component)) continue; |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 137 | pw.println(" " + info.component |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 138 | + " (user " + info.userid + "): " + info.service |
| 139 | + (info.isSystem?" SYSTEM":"")); |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | public void onPackagesChanged(boolean queryReplace, String[] pkgList) { |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 144 | if (DEBUG) Slog.d(TAG, "onPackagesChanged queryReplace=" + queryReplace |
| 145 | + " pkgList=" + (pkgList == null ? null : Arrays.asList(pkgList)) |
| 146 | + " mEnabledServicesPackageNames=" + mEnabledServicesPackageNames); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 147 | boolean anyServicesInvolved = false; |
| 148 | if (pkgList != null && (pkgList.length > 0)) { |
| 149 | for (String pkgName : pkgList) { |
| 150 | if (mEnabledServicesPackageNames.contains(pkgName)) { |
| 151 | anyServicesInvolved = true; |
| 152 | } |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | if (anyServicesInvolved) { |
| 157 | // if we're not replacing a package, clean up orphaned bits |
| 158 | if (!queryReplace) { |
| 159 | disableNonexistentServices(); |
| 160 | } |
| 161 | // make sure we're still bound to any of our services who may have just upgraded |
| 162 | rebindServices(); |
| 163 | } |
| 164 | } |
| 165 | |
Christoph Studer | b53dfd4 | 2014-09-12 14:45:59 +0200 | [diff] [blame] | 166 | public void onUserSwitched() { |
| 167 | if (DEBUG) Slog.d(TAG, "onUserSwitched"); |
| 168 | if (Arrays.equals(mLastSeenProfileIds, mUserProfiles.getCurrentProfileIds())) { |
| 169 | if (DEBUG) Slog.d(TAG, "Current profile IDs didn't change, skipping rebindServices()."); |
| 170 | return; |
| 171 | } |
| 172 | rebindServices(); |
| 173 | } |
| 174 | |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 175 | public ManagedServiceInfo checkServiceTokenLocked(IInterface service) { |
| 176 | checkNotNull(service); |
| 177 | final IBinder token = service.asBinder(); |
| 178 | final int N = mServices.size(); |
| 179 | for (int i=0; i<N; i++) { |
| 180 | final ManagedServiceInfo info = mServices.get(i); |
| 181 | if (info.service.asBinder() == token) return info; |
| 182 | } |
| 183 | throw new SecurityException("Disallowed call from unknown " + getCaption() + ": " |
| 184 | + service); |
| 185 | } |
| 186 | |
| 187 | public void unregisterService(IInterface service, int userid) { |
| 188 | checkNotNull(service); |
| 189 | // no need to check permissions; if your service binder is in the list, |
| 190 | // that's proof that you had permission to add it in the first place |
| 191 | unregisterServiceImpl(service, userid); |
| 192 | } |
| 193 | |
| 194 | public void registerService(IInterface service, ComponentName component, int userid) { |
| 195 | checkNotNull(service); |
Christoph Studer | 3e144d3 | 2014-05-22 16:48:40 +0200 | [diff] [blame] | 196 | ManagedServiceInfo info = registerServiceImpl(service, component, userid); |
| 197 | if (info != null) { |
| 198 | onServiceAdded(info); |
| 199 | } |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 200 | } |
| 201 | |
| 202 | /** |
| 203 | * Remove access for any services that no longer exist. |
| 204 | */ |
| 205 | private void disableNonexistentServices() { |
| 206 | int[] userIds = mUserProfiles.getCurrentProfileIds(); |
| 207 | final int N = userIds.length; |
| 208 | for (int i = 0 ; i < N; ++i) { |
| 209 | disableNonexistentServices(userIds[i]); |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | private void disableNonexistentServices(int userId) { |
| 214 | String flatIn = Settings.Secure.getStringForUser( |
| 215 | mContext.getContentResolver(), |
| 216 | mConfig.secureSettingName, |
| 217 | userId); |
| 218 | if (!TextUtils.isEmpty(flatIn)) { |
| 219 | if (DEBUG) Slog.v(TAG, "flat before: " + flatIn); |
| 220 | PackageManager pm = mContext.getPackageManager(); |
| 221 | List<ResolveInfo> installedServices = pm.queryIntentServicesAsUser( |
| 222 | new Intent(mConfig.serviceInterface), |
| 223 | PackageManager.GET_SERVICES | PackageManager.GET_META_DATA, |
| 224 | userId); |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 225 | if (DEBUG) Slog.v(TAG, mConfig.serviceInterface + " services: " + installedServices); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 226 | Set<ComponentName> installed = new ArraySet<ComponentName>(); |
| 227 | for (int i = 0, count = installedServices.size(); i < count; i++) { |
| 228 | ResolveInfo resolveInfo = installedServices.get(i); |
| 229 | ServiceInfo info = resolveInfo.serviceInfo; |
| 230 | |
| 231 | if (!mConfig.bindPermission.equals(info.permission)) { |
| 232 | Slog.w(TAG, "Skipping " + getCaption() + " service " |
| 233 | + info.packageName + "/" + info.name |
| 234 | + ": it does not require the permission " |
| 235 | + mConfig.bindPermission); |
| 236 | continue; |
| 237 | } |
| 238 | installed.add(new ComponentName(info.packageName, info.name)); |
| 239 | } |
| 240 | |
| 241 | String flatOut = ""; |
| 242 | if (!installed.isEmpty()) { |
| 243 | String[] enabled = flatIn.split(ENABLED_SERVICES_SEPARATOR); |
| 244 | ArrayList<String> remaining = new ArrayList<String>(enabled.length); |
| 245 | for (int i = 0; i < enabled.length; i++) { |
| 246 | ComponentName enabledComponent = ComponentName.unflattenFromString(enabled[i]); |
| 247 | if (installed.contains(enabledComponent)) { |
| 248 | remaining.add(enabled[i]); |
| 249 | } |
| 250 | } |
| 251 | flatOut = TextUtils.join(ENABLED_SERVICES_SEPARATOR, remaining); |
| 252 | } |
| 253 | if (DEBUG) Slog.v(TAG, "flat after: " + flatOut); |
| 254 | if (!flatIn.equals(flatOut)) { |
| 255 | Settings.Secure.putStringForUser(mContext.getContentResolver(), |
| 256 | mConfig.secureSettingName, |
| 257 | flatOut, userId); |
| 258 | } |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | /** |
| 263 | * Called whenever packages change, the user switches, or the secure setting |
| 264 | * is altered. (For example in response to USER_SWITCHED in our broadcast receiver) |
| 265 | */ |
| 266 | private void rebindServices() { |
| 267 | if (DEBUG) Slog.d(TAG, "rebindServices"); |
| 268 | final int[] userIds = mUserProfiles.getCurrentProfileIds(); |
| 269 | final int nUserIds = userIds.length; |
| 270 | |
| 271 | final SparseArray<String> flat = new SparseArray<String>(); |
| 272 | |
| 273 | for (int i = 0; i < nUserIds; ++i) { |
| 274 | flat.put(userIds[i], Settings.Secure.getStringForUser( |
| 275 | mContext.getContentResolver(), |
| 276 | mConfig.secureSettingName, |
| 277 | userIds[i])); |
| 278 | } |
| 279 | |
Christoph Studer | 5d42384 | 2014-05-23 13:15:54 +0200 | [diff] [blame] | 280 | ArrayList<ManagedServiceInfo> toRemove = new ArrayList<ManagedServiceInfo>(); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 281 | final SparseArray<ArrayList<ComponentName>> toAdd |
| 282 | = new SparseArray<ArrayList<ComponentName>>(); |
| 283 | |
| 284 | synchronized (mMutex) { |
Christoph Studer | 5d42384 | 2014-05-23 13:15:54 +0200 | [diff] [blame] | 285 | // Unbind automatically bound services, retain system services. |
| 286 | for (ManagedServiceInfo service : mServices) { |
| 287 | if (!service.isSystem) { |
| 288 | toRemove.add(service); |
| 289 | } |
| 290 | } |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 291 | |
| 292 | final ArraySet<ComponentName> newEnabled = new ArraySet<ComponentName>(); |
| 293 | final ArraySet<String> newPackages = new ArraySet<String>(); |
| 294 | |
| 295 | for (int i = 0; i < nUserIds; ++i) { |
| 296 | final ArrayList<ComponentName> add = new ArrayList<ComponentName>(); |
| 297 | toAdd.put(userIds[i], add); |
| 298 | |
| 299 | // decode the list of components |
| 300 | String toDecode = flat.get(userIds[i]); |
| 301 | if (toDecode != null) { |
| 302 | String[] components = toDecode.split(ENABLED_SERVICES_SEPARATOR); |
| 303 | for (int j = 0; j < components.length; j++) { |
| 304 | final ComponentName component |
| 305 | = ComponentName.unflattenFromString(components[j]); |
| 306 | if (component != null) { |
| 307 | newEnabled.add(component); |
| 308 | add.add(component); |
| 309 | newPackages.add(component.getPackageName()); |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | } |
| 314 | } |
| 315 | mEnabledServicesForCurrentProfiles = newEnabled; |
| 316 | mEnabledServicesPackageNames = newPackages; |
| 317 | } |
| 318 | |
| 319 | for (ManagedServiceInfo info : toRemove) { |
| 320 | final ComponentName component = info.component; |
| 321 | final int oldUser = info.userid; |
| 322 | Slog.v(TAG, "disabling " + getCaption() + " for user " |
| 323 | + oldUser + ": " + component); |
| 324 | unregisterService(component, info.userid); |
| 325 | } |
| 326 | |
| 327 | for (int i = 0; i < nUserIds; ++i) { |
| 328 | final ArrayList<ComponentName> add = toAdd.get(userIds[i]); |
| 329 | final int N = add.size(); |
| 330 | for (int j = 0; j < N; j++) { |
| 331 | final ComponentName component = add.get(j); |
| 332 | Slog.v(TAG, "enabling " + getCaption() + " for user " + userIds[i] + ": " |
| 333 | + component); |
| 334 | registerService(component, userIds[i]); |
| 335 | } |
| 336 | } |
Christoph Studer | b53dfd4 | 2014-09-12 14:45:59 +0200 | [diff] [blame] | 337 | |
| 338 | mLastSeenProfileIds = mUserProfiles.getCurrentProfileIds(); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 339 | } |
| 340 | |
| 341 | /** |
| 342 | * Version of registerService that takes the name of a service component to bind to. |
| 343 | */ |
| 344 | private void registerService(final ComponentName name, final int userid) { |
| 345 | if (DEBUG) Slog.v(TAG, "registerService: " + name + " u=" + userid); |
| 346 | |
| 347 | synchronized (mMutex) { |
| 348 | final String servicesBindingTag = name.toString() + "/" + userid; |
| 349 | if (mServicesBinding.contains(servicesBindingTag)) { |
| 350 | // stop registering this thing already! we're working on it |
| 351 | return; |
| 352 | } |
| 353 | mServicesBinding.add(servicesBindingTag); |
| 354 | |
| 355 | final int N = mServices.size(); |
| 356 | for (int i=N-1; i>=0; i--) { |
| 357 | final ManagedServiceInfo info = mServices.get(i); |
| 358 | if (name.equals(info.component) |
| 359 | && info.userid == userid) { |
| 360 | // cut old connections |
| 361 | if (DEBUG) Slog.v(TAG, " disconnecting old " + getCaption() + ": " |
| 362 | + info.service); |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 363 | removeServiceLocked(i); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 364 | if (info.connection != null) { |
| 365 | mContext.unbindService(info.connection); |
| 366 | } |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | Intent intent = new Intent(mConfig.serviceInterface); |
| 371 | intent.setComponent(name); |
| 372 | |
| 373 | intent.putExtra(Intent.EXTRA_CLIENT_LABEL, mConfig.clientLabel); |
| 374 | |
| 375 | final PendingIntent pendingIntent = PendingIntent.getActivity( |
| 376 | mContext, 0, new Intent(mConfig.settingsAction), 0); |
| 377 | intent.putExtra(Intent.EXTRA_CLIENT_INTENT, pendingIntent); |
| 378 | |
| 379 | ApplicationInfo appInfo = null; |
| 380 | try { |
| 381 | appInfo = mContext.getPackageManager().getApplicationInfo( |
| 382 | name.getPackageName(), 0); |
| 383 | } catch (NameNotFoundException e) { |
| 384 | // Ignore if the package doesn't exist we won't be able to bind to the service. |
| 385 | } |
| 386 | final int targetSdkVersion = |
| 387 | appInfo != null ? appInfo.targetSdkVersion : Build.VERSION_CODES.BASE; |
| 388 | |
| 389 | try { |
| 390 | if (DEBUG) Slog.v(TAG, "binding: " + intent); |
| 391 | if (!mContext.bindServiceAsUser(intent, |
| 392 | new ServiceConnection() { |
| 393 | IInterface mService; |
| 394 | |
| 395 | @Override |
| 396 | public void onServiceConnected(ComponentName name, IBinder binder) { |
| 397 | boolean added = false; |
John Spurlock | 3b98b3f | 2014-05-01 09:08:48 -0400 | [diff] [blame] | 398 | ManagedServiceInfo info = null; |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 399 | synchronized (mMutex) { |
| 400 | mServicesBinding.remove(servicesBindingTag); |
| 401 | try { |
| 402 | mService = asInterface(binder); |
John Spurlock | 3b98b3f | 2014-05-01 09:08:48 -0400 | [diff] [blame] | 403 | info = newServiceInfo(mService, name, |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 404 | userid, false /*isSystem*/, this, targetSdkVersion); |
| 405 | binder.linkToDeath(info, 0); |
| 406 | added = mServices.add(info); |
| 407 | } catch (RemoteException e) { |
| 408 | // already dead |
| 409 | } |
| 410 | } |
| 411 | if (added) { |
John Spurlock | 3b98b3f | 2014-05-01 09:08:48 -0400 | [diff] [blame] | 412 | onServiceAdded(info); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 413 | } |
| 414 | } |
| 415 | |
| 416 | @Override |
| 417 | public void onServiceDisconnected(ComponentName name) { |
| 418 | Slog.v(TAG, getCaption() + " connection lost: " + name); |
| 419 | } |
| 420 | }, |
| 421 | Context.BIND_AUTO_CREATE, |
| 422 | new UserHandle(userid))) |
| 423 | { |
| 424 | mServicesBinding.remove(servicesBindingTag); |
| 425 | Slog.w(TAG, "Unable to bind " + getCaption() + " service: " + intent); |
| 426 | return; |
| 427 | } |
| 428 | } catch (SecurityException ex) { |
| 429 | Slog.e(TAG, "Unable to bind " + getCaption() + " service: " + intent, ex); |
| 430 | return; |
| 431 | } |
| 432 | } |
| 433 | } |
| 434 | |
| 435 | /** |
| 436 | * Remove a service for the given user by ComponentName |
| 437 | */ |
| 438 | private void unregisterService(ComponentName name, int userid) { |
| 439 | synchronized (mMutex) { |
| 440 | final int N = mServices.size(); |
| 441 | for (int i=N-1; i>=0; i--) { |
| 442 | final ManagedServiceInfo info = mServices.get(i); |
| 443 | if (name.equals(info.component) |
| 444 | && info.userid == userid) { |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 445 | removeServiceLocked(i); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 446 | if (info.connection != null) { |
| 447 | try { |
| 448 | mContext.unbindService(info.connection); |
| 449 | } catch (IllegalArgumentException ex) { |
| 450 | // something happened to the service: we think we have a connection |
| 451 | // but it's bogus. |
| 452 | Slog.e(TAG, getCaption() + " " + name + " could not be unbound: " + ex); |
| 453 | } |
| 454 | } |
| 455 | } |
| 456 | } |
| 457 | } |
| 458 | } |
| 459 | |
| 460 | /** |
| 461 | * Removes a service from the list but does not unbind |
| 462 | * |
| 463 | * @return the removed service. |
| 464 | */ |
| 465 | private ManagedServiceInfo removeServiceImpl(IInterface service, final int userid) { |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 466 | if (DEBUG) Slog.d(TAG, "removeServiceImpl service=" + service + " u=" + userid); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 467 | ManagedServiceInfo serviceInfo = null; |
| 468 | synchronized (mMutex) { |
| 469 | final int N = mServices.size(); |
| 470 | for (int i=N-1; i>=0; i--) { |
| 471 | final ManagedServiceInfo info = mServices.get(i); |
| 472 | if (info.service.asBinder() == service.asBinder() |
| 473 | && info.userid == userid) { |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 474 | if (DEBUG) Slog.d(TAG, "Removing active service " + info.component); |
| 475 | serviceInfo = removeServiceLocked(i); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 476 | } |
| 477 | } |
| 478 | } |
| 479 | return serviceInfo; |
| 480 | } |
| 481 | |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 482 | private ManagedServiceInfo removeServiceLocked(int i) { |
| 483 | final ManagedServiceInfo info = mServices.remove(i); |
| 484 | onServiceRemovedLocked(info); |
| 485 | return info; |
| 486 | } |
| 487 | |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 488 | private void checkNotNull(IInterface service) { |
| 489 | if (service == null) { |
| 490 | throw new IllegalArgumentException(getCaption() + " must not be null"); |
| 491 | } |
| 492 | } |
| 493 | |
Christoph Studer | 3e144d3 | 2014-05-22 16:48:40 +0200 | [diff] [blame] | 494 | private ManagedServiceInfo registerServiceImpl(final IInterface service, |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 495 | final ComponentName component, final int userid) { |
| 496 | synchronized (mMutex) { |
| 497 | try { |
| 498 | ManagedServiceInfo info = newServiceInfo(service, component, userid, |
Dianne Hackborn | 955d8d6 | 2014-10-07 20:17:19 -0700 | [diff] [blame^] | 499 | true /*isSystem*/, null, Build.VERSION_CODES.LOLLIPOP); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 500 | service.asBinder().linkToDeath(info, 0); |
| 501 | mServices.add(info); |
Christoph Studer | 3e144d3 | 2014-05-22 16:48:40 +0200 | [diff] [blame] | 502 | return info; |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 503 | } catch (RemoteException e) { |
| 504 | // already dead |
| 505 | } |
| 506 | } |
Christoph Studer | 3e144d3 | 2014-05-22 16:48:40 +0200 | [diff] [blame] | 507 | return null; |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 508 | } |
| 509 | |
| 510 | /** |
| 511 | * Removes a service from the list and unbinds. |
| 512 | */ |
| 513 | private void unregisterServiceImpl(IInterface service, int userid) { |
| 514 | ManagedServiceInfo info = removeServiceImpl(service, userid); |
| 515 | if (info != null && info.connection != null) { |
| 516 | mContext.unbindService(info.connection); |
| 517 | } |
| 518 | } |
| 519 | |
| 520 | private class SettingsObserver extends ContentObserver { |
| 521 | private final Uri mSecureSettingsUri = Settings.Secure.getUriFor(mConfig.secureSettingName); |
| 522 | |
| 523 | private SettingsObserver(Handler handler) { |
| 524 | super(handler); |
| 525 | } |
| 526 | |
| 527 | private void observe() { |
| 528 | ContentResolver resolver = mContext.getContentResolver(); |
| 529 | resolver.registerContentObserver(mSecureSettingsUri, |
| 530 | false, this, UserHandle.USER_ALL); |
| 531 | update(null); |
| 532 | } |
| 533 | |
| 534 | @Override |
| 535 | public void onChange(boolean selfChange, Uri uri) { |
| 536 | update(uri); |
| 537 | } |
| 538 | |
| 539 | private void update(Uri uri) { |
| 540 | if (uri == null || mSecureSettingsUri.equals(uri)) { |
Christoph Studer | b53dfd4 | 2014-09-12 14:45:59 +0200 | [diff] [blame] | 541 | if (DEBUG) Slog.d(TAG, "Setting changed: mSecureSettingsUri=" + mSecureSettingsUri + |
| 542 | " / uri=" + uri); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 543 | rebindServices(); |
| 544 | } |
| 545 | } |
| 546 | } |
| 547 | |
| 548 | public class ManagedServiceInfo implements IBinder.DeathRecipient { |
| 549 | public IInterface service; |
| 550 | public ComponentName component; |
| 551 | public int userid; |
| 552 | public boolean isSystem; |
| 553 | public ServiceConnection connection; |
| 554 | public int targetSdkVersion; |
| 555 | |
| 556 | public ManagedServiceInfo(IInterface service, ComponentName component, |
| 557 | int userid, boolean isSystem, ServiceConnection connection, int targetSdkVersion) { |
| 558 | this.service = service; |
| 559 | this.component = component; |
| 560 | this.userid = userid; |
| 561 | this.isSystem = isSystem; |
| 562 | this.connection = connection; |
| 563 | this.targetSdkVersion = targetSdkVersion; |
| 564 | } |
| 565 | |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 566 | @Override |
| 567 | public String toString() { |
| 568 | return new StringBuilder("ManagedServiceInfo[") |
| 569 | .append("component=").append(component) |
| 570 | .append(",userid=").append(userid) |
| 571 | .append(",isSystem=").append(isSystem) |
| 572 | .append(",targetSdkVersion=").append(targetSdkVersion) |
| 573 | .append(",connection=").append(connection == null ? null : "<connection>") |
| 574 | .append(",service=").append(service) |
| 575 | .append(']').toString(); |
| 576 | } |
| 577 | |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 578 | public boolean enabledAndUserMatches(int nid) { |
| 579 | if (!isEnabledForCurrentProfiles()) { |
| 580 | return false; |
| 581 | } |
| 582 | if (this.userid == UserHandle.USER_ALL) return true; |
| 583 | if (nid == UserHandle.USER_ALL || nid == this.userid) return true; |
| 584 | return supportsProfiles() && mUserProfiles.isCurrentProfile(nid); |
| 585 | } |
| 586 | |
| 587 | public boolean supportsProfiles() { |
Dianne Hackborn | 955d8d6 | 2014-10-07 20:17:19 -0700 | [diff] [blame^] | 588 | return targetSdkVersion >= Build.VERSION_CODES.LOLLIPOP; |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 589 | } |
| 590 | |
| 591 | @Override |
| 592 | public void binderDied() { |
John Spurlock | e77bb36 | 2014-04-26 10:24:59 -0400 | [diff] [blame] | 593 | if (DEBUG) Slog.d(TAG, "binderDied"); |
John Spurlock | 7340fc8 | 2014-04-24 18:50:12 -0400 | [diff] [blame] | 594 | // Remove the service, but don't unbind from the service. The system will bring the |
| 595 | // service back up, and the onServiceConnected handler will readd the service with the |
| 596 | // new binding. If this isn't a bound service, and is just a registered |
| 597 | // service, just removing it from the list is all we need to do anyway. |
| 598 | removeServiceImpl(this.service, this.userid); |
| 599 | } |
| 600 | |
| 601 | /** convenience method for looking in mEnabledServicesForCurrentProfiles */ |
| 602 | public boolean isEnabledForCurrentProfiles() { |
| 603 | if (this.isSystem) return true; |
| 604 | if (this.connection == null) return false; |
| 605 | return mEnabledServicesForCurrentProfiles.contains(this.component); |
| 606 | } |
| 607 | } |
| 608 | |
| 609 | public static class UserProfiles { |
| 610 | // Profiles of the current user. |
| 611 | private final SparseArray<UserInfo> mCurrentProfiles = new SparseArray<UserInfo>(); |
| 612 | |
| 613 | public void updateCache(Context context) { |
| 614 | UserManager userManager = (UserManager) context.getSystemService(Context.USER_SERVICE); |
| 615 | if (userManager != null) { |
| 616 | int currentUserId = ActivityManager.getCurrentUser(); |
| 617 | List<UserInfo> profiles = userManager.getProfiles(currentUserId); |
| 618 | synchronized (mCurrentProfiles) { |
| 619 | mCurrentProfiles.clear(); |
| 620 | for (UserInfo user : profiles) { |
| 621 | mCurrentProfiles.put(user.id, user); |
| 622 | } |
| 623 | } |
| 624 | } |
| 625 | } |
| 626 | |
| 627 | public int[] getCurrentProfileIds() { |
| 628 | synchronized (mCurrentProfiles) { |
| 629 | int[] users = new int[mCurrentProfiles.size()]; |
| 630 | final int N = mCurrentProfiles.size(); |
| 631 | for (int i = 0; i < N; ++i) { |
| 632 | users[i] = mCurrentProfiles.keyAt(i); |
| 633 | } |
| 634 | return users; |
| 635 | } |
| 636 | } |
| 637 | |
| 638 | public boolean isCurrentProfile(int userId) { |
| 639 | synchronized (mCurrentProfiles) { |
| 640 | return mCurrentProfiles.get(userId) != null; |
| 641 | } |
| 642 | } |
| 643 | } |
| 644 | |
| 645 | protected static class Config { |
| 646 | String caption; |
| 647 | String serviceInterface; |
| 648 | String secureSettingName; |
| 649 | String bindPermission; |
| 650 | String settingsAction; |
| 651 | int clientLabel; |
| 652 | } |
| 653 | } |