Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2009 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 android.content.pm; |
| 18 | |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 19 | import android.content.BroadcastReceiver; |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 20 | import android.content.ComponentName; |
| 21 | import android.content.Context; |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 22 | import android.content.Intent; |
| 23 | import android.content.IntentFilter; |
Dianne Hackborn | 20cb56e | 2010-03-04 00:58:29 -0800 | [diff] [blame] | 24 | import android.content.pm.PackageManager.NameNotFoundException; |
| 25 | import android.content.res.Resources; |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 26 | import android.content.res.XmlResourceParser; |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 27 | import android.os.Environment; |
| 28 | import android.os.Handler; |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 29 | import android.os.UserHandle; |
Dianne Hackborn | 39606a0 | 2012-07-31 17:54:35 -0700 | [diff] [blame] | 30 | import android.util.AtomicFile; |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 31 | import android.util.AttributeSet; |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 32 | import android.util.Log; |
| 33 | import android.util.Slog; |
| 34 | import android.util.SparseArray; |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 35 | import android.util.Xml; |
| 36 | |
Dianne Hackborn | 2269d157 | 2010-02-24 19:54:22 -0800 | [diff] [blame] | 37 | import com.android.internal.util.FastXmlSerializer; |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 38 | import com.google.android.collect.Lists; |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 39 | import com.google.android.collect.Maps; |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 40 | |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 41 | import org.xmlpull.v1.XmlPullParser; |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 42 | import org.xmlpull.v1.XmlPullParserException; |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 43 | import org.xmlpull.v1.XmlSerializer; |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 44 | |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 45 | import java.io.File; |
| 46 | import java.io.FileDescriptor; |
| 47 | import java.io.FileInputStream; |
| 48 | import java.io.FileOutputStream; |
| 49 | import java.io.IOException; |
| 50 | import java.io.PrintWriter; |
| 51 | import java.util.ArrayList; |
| 52 | import java.util.Collection; |
| 53 | import java.util.Collections; |
| 54 | import java.util.List; |
| 55 | import java.util.Map; |
| 56 | |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 57 | /** |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 58 | * Cache of registered services. This cache is lazily built by interrogating |
| 59 | * {@link PackageManager} on a per-user basis. It's updated as packages are |
| 60 | * added, removed and changed. Users are responsible for calling |
| 61 | * {@link #invalidateCache(int)} when a user is started, since |
| 62 | * {@link PackageManager} broadcasts aren't sent for stopped users. |
| 63 | * <p> |
| 64 | * The services are referred to by type V and are made available via the |
| 65 | * {@link #getServiceInfo} method. |
| 66 | * |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 67 | * @hide |
| 68 | */ |
| 69 | public abstract class RegisteredServicesCache<V> { |
| 70 | private static final String TAG = "PackageManager"; |
| 71 | |
| 72 | public final Context mContext; |
| 73 | private final String mInterfaceName; |
| 74 | private final String mMetaDataName; |
| 75 | private final String mAttributesName; |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 76 | private final XmlSerializerAndParser<V> mSerializerAndParser; |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 77 | |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 78 | private final Object mServicesLock = new Object(); |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 79 | |
| 80 | // @GuardedBy("mServicesLock") |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 81 | private boolean mPersistentServicesFileDidNotExist; |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 82 | // @GuardedBy("mServicesLock") |
| 83 | private final SparseArray<UserServices<V>> mUserServices = new SparseArray<UserServices<V>>(); |
| 84 | |
| 85 | private static class UserServices<V> { |
| 86 | // @GuardedBy("mServicesLock") |
| 87 | public final Map<V, Integer> persistentServices = Maps.newHashMap(); |
| 88 | // @GuardedBy("mServicesLock") |
| 89 | public Map<V, ServiceInfo<V>> services = null; |
| 90 | } |
| 91 | |
| 92 | private UserServices<V> findOrCreateUserLocked(int userId) { |
| 93 | UserServices<V> services = mUserServices.get(userId); |
| 94 | if (services == null) { |
| 95 | services = new UserServices<V>(); |
| 96 | mUserServices.put(userId, services); |
| 97 | } |
| 98 | return services; |
| 99 | } |
Fred Quintana | 3ecd5f4 | 2009-09-17 12:42:35 -0700 | [diff] [blame] | 100 | |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 101 | /** |
| 102 | * This file contains the list of known services. We would like to maintain this forever |
| 103 | * so we store it as an XML file. |
| 104 | */ |
| 105 | private final AtomicFile mPersistentServicesFile; |
Fred Quintana | 3ecd5f4 | 2009-09-17 12:42:35 -0700 | [diff] [blame] | 106 | |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 107 | // the listener and handler are synchronized on "this" and must be updated together |
| 108 | private RegisteredServicesCacheListener<V> mListener; |
| 109 | private Handler mHandler; |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 110 | |
| 111 | public RegisteredServicesCache(Context context, String interfaceName, String metaDataName, |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 112 | String attributeName, XmlSerializerAndParser<V> serializerAndParser) { |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 113 | mContext = context; |
| 114 | mInterfaceName = interfaceName; |
| 115 | mMetaDataName = metaDataName; |
| 116 | mAttributesName = attributeName; |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 117 | mSerializerAndParser = serializerAndParser; |
| 118 | |
| 119 | File dataDir = Environment.getDataDirectory(); |
| 120 | File systemDir = new File(dataDir, "system"); |
| 121 | File syncDir = new File(systemDir, "registered_services"); |
| 122 | mPersistentServicesFile = new AtomicFile(new File(syncDir, interfaceName + ".xml")); |
| 123 | |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 124 | // Load persisted services from disk |
| 125 | readPersistentServicesLocked(); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 126 | |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 127 | IntentFilter intentFilter = new IntentFilter(); |
| 128 | intentFilter.addAction(Intent.ACTION_PACKAGE_ADDED); |
| 129 | intentFilter.addAction(Intent.ACTION_PACKAGE_CHANGED); |
| 130 | intentFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); |
| 131 | intentFilter.addDataScheme("package"); |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 132 | mContext.registerReceiverAsUser(mPackageReceiver, UserHandle.ALL, intentFilter, null, null); |
| 133 | |
Suchi Amalapurapu | 08675a3 | 2010-01-28 09:57:30 -0800 | [diff] [blame] | 134 | // Register for events related to sdcard installation. |
| 135 | IntentFilter sdFilter = new IntentFilter(); |
Suchi Amalapurapu | b56ae20 | 2010-02-04 22:51:07 -0800 | [diff] [blame] | 136 | sdFilter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE); |
| 137 | sdFilter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 138 | mContext.registerReceiver(mExternalReceiver, sdFilter); |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 139 | } |
| 140 | |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 141 | private final BroadcastReceiver mPackageReceiver = new BroadcastReceiver() { |
| 142 | @Override |
| 143 | public void onReceive(Context context, Intent intent) { |
| 144 | final int uid = intent.getIntExtra(Intent.EXTRA_UID, -1); |
| 145 | if (uid != -1) { |
| 146 | generateServicesMap(UserHandle.getUserId(uid)); |
| 147 | } |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 148 | } |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 149 | }; |
| 150 | |
| 151 | private final BroadcastReceiver mExternalReceiver = new BroadcastReceiver() { |
| 152 | @Override |
| 153 | public void onReceive(Context context, Intent intent) { |
| 154 | // External apps can't coexist with multi-user, so scan owner |
| 155 | generateServicesMap(UserHandle.USER_OWNER); |
| 156 | } |
| 157 | }; |
| 158 | |
| 159 | public void invalidateCache(int userId) { |
| 160 | synchronized (mServicesLock) { |
| 161 | final UserServices<V> user = findOrCreateUserLocked(userId); |
| 162 | user.services = null; |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | public void dump(FileDescriptor fd, PrintWriter fout, String[] args, int userId) { |
| 167 | synchronized (mServicesLock) { |
| 168 | final UserServices<V> user = findOrCreateUserLocked(userId); |
| 169 | if (user.services != null) { |
| 170 | fout.println("RegisteredServicesCache: " + user.services.size() + " services"); |
| 171 | for (ServiceInfo<?> info : user.services.values()) { |
| 172 | fout.println(" " + info); |
| 173 | } |
| 174 | } else { |
| 175 | fout.println("RegisteredServicesCache: services not loaded"); |
| 176 | } |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 177 | } |
| 178 | } |
| 179 | |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 180 | public RegisteredServicesCacheListener<V> getListener() { |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 181 | synchronized (this) { |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 182 | return mListener; |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 183 | } |
| 184 | } |
| 185 | |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 186 | public void setListener(RegisteredServicesCacheListener<V> listener, Handler handler) { |
| 187 | if (handler == null) { |
| 188 | handler = new Handler(mContext.getMainLooper()); |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 189 | } |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 190 | synchronized (this) { |
| 191 | mHandler = handler; |
| 192 | mListener = listener; |
| 193 | } |
| 194 | } |
| 195 | |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 196 | private void notifyListener(final V type, final int userId, final boolean removed) { |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 197 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 198 | Log.d(TAG, "notifyListener: " + type + " is " + (removed ? "removed" : "added")); |
| 199 | } |
| 200 | RegisteredServicesCacheListener<V> listener; |
| 201 | Handler handler; |
| 202 | synchronized (this) { |
| 203 | listener = mListener; |
| 204 | handler = mHandler; |
| 205 | } |
| 206 | if (listener == null) { |
| 207 | return; |
| 208 | } |
| 209 | |
| 210 | final RegisteredServicesCacheListener<V> listener2 = listener; |
| 211 | handler.post(new Runnable() { |
| 212 | public void run() { |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 213 | listener2.onServiceChanged(type, userId, removed); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 214 | } |
| 215 | }); |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 216 | } |
| 217 | |
| 218 | /** |
| 219 | * Value type that describes a Service. The information within can be used |
| 220 | * to bind to the service. |
| 221 | */ |
| 222 | public static class ServiceInfo<V> { |
| 223 | public final V type; |
| 224 | public final ComponentName componentName; |
Fred Quintana | d4a1d2e | 2009-07-16 16:36:38 -0700 | [diff] [blame] | 225 | public final int uid; |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 226 | |
Fred Quintana | 56285a6 | 2010-12-02 14:20:51 -0800 | [diff] [blame] | 227 | /** @hide */ |
| 228 | public ServiceInfo(V type, ComponentName componentName, int uid) { |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 229 | this.type = type; |
| 230 | this.componentName = componentName; |
Fred Quintana | d4a1d2e | 2009-07-16 16:36:38 -0700 | [diff] [blame] | 231 | this.uid = uid; |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 232 | } |
| 233 | |
Jeff Hamilton | c42c0dd | 2009-09-03 09:08:30 -0500 | [diff] [blame] | 234 | @Override |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 235 | public String toString() { |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 236 | return "ServiceInfo: " + type + ", " + componentName + ", uid " + uid; |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 237 | } |
| 238 | } |
| 239 | |
| 240 | /** |
| 241 | * Accessor for the registered authenticators. |
| 242 | * @param type the account type of the authenticator |
| 243 | * @return the AuthenticatorInfo that matches the account type or null if none is present |
| 244 | */ |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 245 | public ServiceInfo<V> getServiceInfo(V type, int userId) { |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 246 | synchronized (mServicesLock) { |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 247 | // Find user and lazily populate cache |
| 248 | final UserServices<V> user = findOrCreateUserLocked(userId); |
| 249 | if (user.services == null) { |
| 250 | generateServicesMap(userId); |
| 251 | } |
| 252 | return user.services.get(type); |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 253 | } |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 254 | } |
| 255 | |
| 256 | /** |
| 257 | * @return a collection of {@link RegisteredServicesCache.ServiceInfo} objects for all |
| 258 | * registered authenticators. |
| 259 | */ |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 260 | public Collection<ServiceInfo<V>> getAllServices(int userId) { |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 261 | synchronized (mServicesLock) { |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 262 | // Find user and lazily populate cache |
| 263 | final UserServices<V> user = findOrCreateUserLocked(userId); |
| 264 | if (user.services == null) { |
| 265 | generateServicesMap(userId); |
| 266 | } |
Jeff Sharkey | a706e2f | 2012-10-16 12:02:42 -0700 | [diff] [blame] | 267 | return Collections.unmodifiableCollection( |
| 268 | new ArrayList<ServiceInfo<V>>(user.services.values())); |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 269 | } |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 270 | } |
| 271 | |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 272 | private boolean inSystemImage(int callerUid) { |
| 273 | String[] packages = mContext.getPackageManager().getPackagesForUid(callerUid); |
| 274 | for (String name : packages) { |
| 275 | try { |
| 276 | PackageInfo packageInfo = |
| 277 | mContext.getPackageManager().getPackageInfo(name, 0 /* flags */); |
| 278 | if ((packageInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { |
| 279 | return true; |
| 280 | } |
| 281 | } catch (PackageManager.NameNotFoundException e) { |
| 282 | return false; |
| 283 | } |
| 284 | } |
| 285 | return false; |
| 286 | } |
| 287 | |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 288 | /** |
| 289 | * Populate {@link UserServices#services} by scanning installed packages for |
| 290 | * given {@link UserHandle}. |
| 291 | */ |
| 292 | private void generateServicesMap(int userId) { |
| 293 | Slog.d(TAG, "generateServicesMap() for " + userId); |
| 294 | |
| 295 | final PackageManager pm = mContext.getPackageManager(); |
| 296 | final ArrayList<ServiceInfo<V>> serviceInfos = new ArrayList<ServiceInfo<V>>(); |
| 297 | final List<ResolveInfo> resolveInfos = pm.queryIntentServicesAsUser( |
| 298 | new Intent(mInterfaceName), PackageManager.GET_META_DATA, userId); |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 299 | for (ResolveInfo resolveInfo : resolveInfos) { |
| 300 | try { |
| 301 | ServiceInfo<V> info = parseServiceInfo(resolveInfo); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 302 | if (info == null) { |
| 303 | Log.w(TAG, "Unable to load service info " + resolveInfo.toString()); |
| 304 | continue; |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 305 | } |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 306 | serviceInfos.add(info); |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 307 | } catch (XmlPullParserException e) { |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 308 | Log.w(TAG, "Unable to load service info " + resolveInfo.toString(), e); |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 309 | } catch (IOException e) { |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 310 | Log.w(TAG, "Unable to load service info " + resolveInfo.toString(), e); |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 311 | } |
| 312 | } |
| 313 | |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 314 | synchronized (mServicesLock) { |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 315 | final UserServices<V> user = findOrCreateUserLocked(userId); |
| 316 | final boolean firstScan = user.services == null; |
| 317 | if (firstScan) { |
| 318 | user.services = Maps.newHashMap(); |
| 319 | } else { |
| 320 | user.services.clear(); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 321 | } |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 322 | |
Alon Albert | 3fa51e3 | 2010-11-11 09:24:04 -0800 | [diff] [blame] | 323 | StringBuilder changes = new StringBuilder(); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 324 | for (ServiceInfo<V> info : serviceInfos) { |
| 325 | // four cases: |
| 326 | // - doesn't exist yet |
| 327 | // - add, notify user that it was added |
| 328 | // - exists and the UID is the same |
| 329 | // - replace, don't notify user |
| 330 | // - exists, the UID is different, and the new one is not a system package |
| 331 | // - ignore |
| 332 | // - exists, the UID is different, and the new one is a system package |
| 333 | // - add, notify user that it was added |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 334 | Integer previousUid = user.persistentServices.get(info.type); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 335 | if (previousUid == null) { |
Alon Albert | 3fa51e3 | 2010-11-11 09:24:04 -0800 | [diff] [blame] | 336 | changes.append(" New service added: ").append(info).append("\n"); |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 337 | user.services.put(info.type, info); |
| 338 | user.persistentServices.put(info.type, info.uid); |
| 339 | if (!(mPersistentServicesFileDidNotExist && firstScan)) { |
| 340 | notifyListener(info.type, userId, false /* removed */); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 341 | } |
| 342 | } else if (previousUid == info.uid) { |
| 343 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
Alon Albert | 3fa51e3 | 2010-11-11 09:24:04 -0800 | [diff] [blame] | 344 | changes.append(" Existing service (nop): ").append(info).append("\n"); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 345 | } |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 346 | user.services.put(info.type, info); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 347 | } else if (inSystemImage(info.uid) |
| 348 | || !containsTypeAndUid(serviceInfos, info.type, previousUid)) { |
Alon Albert | 3fa51e3 | 2010-11-11 09:24:04 -0800 | [diff] [blame] | 349 | if (inSystemImage(info.uid)) { |
| 350 | changes.append(" System service replacing existing: ").append(info) |
| 351 | .append("\n"); |
| 352 | } else { |
| 353 | changes.append(" Existing service replacing a removed service: ") |
| 354 | .append(info).append("\n"); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 355 | } |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 356 | user.services.put(info.type, info); |
| 357 | user.persistentServices.put(info.type, info.uid); |
| 358 | notifyListener(info.type, userId, false /* removed */); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 359 | } else { |
| 360 | // ignore |
Alon Albert | 3fa51e3 | 2010-11-11 09:24:04 -0800 | [diff] [blame] | 361 | changes.append(" Existing service with new uid ignored: ").append(info) |
| 362 | .append("\n"); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 363 | } |
| 364 | } |
| 365 | |
| 366 | ArrayList<V> toBeRemoved = Lists.newArrayList(); |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 367 | for (V v1 : user.persistentServices.keySet()) { |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 368 | if (!containsType(serviceInfos, v1)) { |
| 369 | toBeRemoved.add(v1); |
| 370 | } |
| 371 | } |
| 372 | for (V v1 : toBeRemoved) { |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 373 | user.persistentServices.remove(v1); |
Alon Albert | 3fa51e3 | 2010-11-11 09:24:04 -0800 | [diff] [blame] | 374 | changes.append(" Service removed: ").append(v1).append("\n"); |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 375 | notifyListener(v1, userId, true /* removed */); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 376 | } |
Alon Albert | 3fa51e3 | 2010-11-11 09:24:04 -0800 | [diff] [blame] | 377 | if (changes.length() > 0) { |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame] | 378 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 379 | Log.d(TAG, "generateServicesMap(" + mInterfaceName + "): " + |
| 380 | serviceInfos.size() + " services:\n" + changes); |
| 381 | } |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 382 | writePersistentServicesLocked(); |
| 383 | } else { |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame] | 384 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 385 | Log.d(TAG, "generateServicesMap(" + mInterfaceName + "): " + |
| 386 | serviceInfos.size() + " services unchanged"); |
| 387 | } |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 388 | } |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 389 | } |
| 390 | } |
| 391 | |
| 392 | private boolean containsType(ArrayList<ServiceInfo<V>> serviceInfos, V type) { |
| 393 | for (int i = 0, N = serviceInfos.size(); i < N; i++) { |
| 394 | if (serviceInfos.get(i).type.equals(type)) { |
| 395 | return true; |
| 396 | } |
| 397 | } |
| 398 | |
| 399 | return false; |
| 400 | } |
| 401 | |
| 402 | private boolean containsTypeAndUid(ArrayList<ServiceInfo<V>> serviceInfos, V type, int uid) { |
| 403 | for (int i = 0, N = serviceInfos.size(); i < N; i++) { |
| 404 | final ServiceInfo<V> serviceInfo = serviceInfos.get(i); |
| 405 | if (serviceInfo.type.equals(type) && serviceInfo.uid == uid) { |
| 406 | return true; |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | return false; |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 411 | } |
| 412 | |
| 413 | private ServiceInfo<V> parseServiceInfo(ResolveInfo service) |
| 414 | throws XmlPullParserException, IOException { |
| 415 | android.content.pm.ServiceInfo si = service.serviceInfo; |
| 416 | ComponentName componentName = new ComponentName(si.packageName, si.name); |
| 417 | |
| 418 | PackageManager pm = mContext.getPackageManager(); |
| 419 | |
| 420 | XmlResourceParser parser = null; |
| 421 | try { |
| 422 | parser = si.loadXmlMetaData(pm, mMetaDataName); |
| 423 | if (parser == null) { |
| 424 | throw new XmlPullParserException("No " + mMetaDataName + " meta-data"); |
| 425 | } |
| 426 | |
| 427 | AttributeSet attrs = Xml.asAttributeSet(parser); |
| 428 | |
| 429 | int type; |
| 430 | while ((type=parser.next()) != XmlPullParser.END_DOCUMENT |
| 431 | && type != XmlPullParser.START_TAG) { |
| 432 | } |
| 433 | |
| 434 | String nodeName = parser.getName(); |
| 435 | if (!mAttributesName.equals(nodeName)) { |
| 436 | throw new XmlPullParserException( |
| 437 | "Meta-data does not start with " + mAttributesName + " tag"); |
| 438 | } |
| 439 | |
Dianne Hackborn | 20cb56e | 2010-03-04 00:58:29 -0800 | [diff] [blame] | 440 | V v = parseServiceAttributes(pm.getResourcesForApplication(si.applicationInfo), |
| 441 | si.packageName, attrs); |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 442 | if (v == null) { |
| 443 | return null; |
| 444 | } |
Fred Quintana | d4a1d2e | 2009-07-16 16:36:38 -0700 | [diff] [blame] | 445 | final android.content.pm.ServiceInfo serviceInfo = service.serviceInfo; |
| 446 | final ApplicationInfo applicationInfo = serviceInfo.applicationInfo; |
| 447 | final int uid = applicationInfo.uid; |
| 448 | return new ServiceInfo<V>(v, componentName, uid); |
Dianne Hackborn | 20cb56e | 2010-03-04 00:58:29 -0800 | [diff] [blame] | 449 | } catch (NameNotFoundException e) { |
| 450 | throw new XmlPullParserException( |
| 451 | "Unable to load resources for pacakge " + si.packageName); |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 452 | } finally { |
| 453 | if (parser != null) parser.close(); |
| 454 | } |
| 455 | } |
| 456 | |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 457 | /** |
| 458 | * Read all sync status back in to the initial engine state. |
| 459 | */ |
| 460 | private void readPersistentServicesLocked() { |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 461 | mUserServices.clear(); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 462 | if (mSerializerAndParser == null) { |
| 463 | return; |
| 464 | } |
| 465 | FileInputStream fis = null; |
| 466 | try { |
| 467 | mPersistentServicesFileDidNotExist = !mPersistentServicesFile.getBaseFile().exists(); |
| 468 | if (mPersistentServicesFileDidNotExist) { |
| 469 | return; |
| 470 | } |
| 471 | fis = mPersistentServicesFile.openRead(); |
| 472 | XmlPullParser parser = Xml.newPullParser(); |
| 473 | parser.setInput(fis, null); |
| 474 | int eventType = parser.getEventType(); |
| 475 | while (eventType != XmlPullParser.START_TAG) { |
| 476 | eventType = parser.next(); |
| 477 | } |
| 478 | String tagName = parser.getName(); |
| 479 | if ("services".equals(tagName)) { |
| 480 | eventType = parser.next(); |
| 481 | do { |
| 482 | if (eventType == XmlPullParser.START_TAG && parser.getDepth() == 2) { |
| 483 | tagName = parser.getName(); |
| 484 | if ("service".equals(tagName)) { |
| 485 | V service = mSerializerAndParser.createFromXml(parser); |
| 486 | if (service == null) { |
| 487 | break; |
| 488 | } |
| 489 | String uidString = parser.getAttributeValue(null, "uid"); |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 490 | final int uid = Integer.parseInt(uidString); |
| 491 | final int userId = UserHandle.getUserId(uid); |
| 492 | final UserServices<V> user = findOrCreateUserLocked(userId); |
| 493 | user.persistentServices.put(service, uid); |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 494 | } |
| 495 | } |
| 496 | eventType = parser.next(); |
| 497 | } while (eventType != XmlPullParser.END_DOCUMENT); |
| 498 | } |
| 499 | } catch (Exception e) { |
| 500 | Log.w(TAG, "Error reading persistent services, starting from scratch", e); |
| 501 | } finally { |
| 502 | if (fis != null) { |
| 503 | try { |
| 504 | fis.close(); |
| 505 | } catch (java.io.IOException e1) { |
| 506 | } |
| 507 | } |
| 508 | } |
| 509 | } |
| 510 | |
| 511 | /** |
| 512 | * Write all sync status to the sync status file. |
| 513 | */ |
| 514 | private void writePersistentServicesLocked() { |
| 515 | if (mSerializerAndParser == null) { |
| 516 | return; |
| 517 | } |
| 518 | FileOutputStream fos = null; |
| 519 | try { |
| 520 | fos = mPersistentServicesFile.startWrite(); |
| 521 | XmlSerializer out = new FastXmlSerializer(); |
| 522 | out.setOutput(fos, "utf-8"); |
| 523 | out.startDocument(null, true); |
| 524 | out.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); |
| 525 | out.startTag(null, "services"); |
Jeff Sharkey | 6ab72d7 | 2012-10-08 16:44:37 -0700 | [diff] [blame] | 526 | for (int i = 0; i < mUserServices.size(); i++) { |
| 527 | final UserServices<V> user = mUserServices.valueAt(i); |
| 528 | for (Map.Entry<V, Integer> service : user.persistentServices.entrySet()) { |
| 529 | out.startTag(null, "service"); |
| 530 | out.attribute(null, "uid", Integer.toString(service.getValue())); |
| 531 | mSerializerAndParser.writeAsXml(service.getKey(), out); |
| 532 | out.endTag(null, "service"); |
| 533 | } |
Fred Quintana | 5ebbb4a | 2009-11-09 15:42:20 -0800 | [diff] [blame] | 534 | } |
| 535 | out.endTag(null, "services"); |
| 536 | out.endDocument(); |
| 537 | mPersistentServicesFile.finishWrite(fos); |
| 538 | } catch (java.io.IOException e1) { |
| 539 | Log.w(TAG, "Error writing accounts", e1); |
| 540 | if (fos != null) { |
| 541 | mPersistentServicesFile.failWrite(fos); |
| 542 | } |
| 543 | } |
| 544 | } |
| 545 | |
Dianne Hackborn | 20cb56e | 2010-03-04 00:58:29 -0800 | [diff] [blame] | 546 | public abstract V parseServiceAttributes(Resources res, |
| 547 | String packageName, AttributeSet attrs); |
Fred Quintana | 718d8a2 | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 548 | } |