Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [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; |
| 18 | |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 19 | import static android.net.NetworkRecommendationProvider.EXTRA_RECOMMENDATION_RESULT; |
| 20 | import static android.net.NetworkRecommendationProvider.EXTRA_SEQUENCE; |
| 21 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 22 | import android.Manifest.permission; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 23 | import android.annotation.Nullable; |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 24 | import android.content.BroadcastReceiver; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 25 | import android.content.ComponentName; |
Jeff Davidson | 56f9f73 | 2014-08-14 16:47:23 -0700 | [diff] [blame] | 26 | import android.content.ContentResolver; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 27 | import android.content.Context; |
Jeff Davidson | b096bdc | 2014-07-01 12:29:11 -0700 | [diff] [blame] | 28 | import android.content.Intent; |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 29 | import android.content.IntentFilter; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 30 | import android.content.ServiceConnection; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 31 | import android.content.pm.PackageManager; |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 32 | import android.database.ContentObserver; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 33 | import android.net.INetworkRecommendationProvider; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 34 | import android.net.INetworkScoreCache; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 35 | import android.net.INetworkScoreService; |
Jeremy Joslin | b2087a1 | 2016-12-13 16:11:51 -0800 | [diff] [blame] | 36 | import android.net.NetworkKey; |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 37 | import android.net.NetworkScoreManager; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 38 | import android.net.NetworkScorerAppManager; |
Jeff Davidson | c741553 | 2014-06-23 18:15:34 -0700 | [diff] [blame] | 39 | import android.net.NetworkScorerAppManager.NetworkScorerAppData; |
Jeremy Joslin | d1daf6d | 2016-11-28 17:47:35 -0800 | [diff] [blame] | 40 | import android.net.RecommendationRequest; |
| 41 | import android.net.RecommendationResult; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 42 | import android.net.ScoredNetwork; |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 43 | import android.net.Uri; |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 44 | import android.net.wifi.ScanResult; |
| 45 | import android.net.wifi.WifiInfo; |
| 46 | import android.net.wifi.WifiManager; |
| 47 | import android.net.wifi.WifiScanner; |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 48 | import android.os.Binder; |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 49 | import android.os.Build; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 50 | import android.os.Bundle; |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 51 | import android.os.Handler; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 52 | import android.os.IBinder; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 53 | import android.os.IRemoteCallback; |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 54 | import android.os.Looper; |
| 55 | import android.os.Message; |
Jeremy Joslin | 998d7ca | 2016-12-28 15:56:46 -0800 | [diff] [blame] | 56 | import android.os.RemoteCallback; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 57 | import android.os.RemoteCallbackList; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 58 | import android.os.RemoteException; |
Jeff Davidson | ac7285d | 2014-08-08 15:12:47 -0700 | [diff] [blame] | 59 | import android.os.UserHandle; |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 60 | import android.provider.Settings; |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 61 | import android.provider.Settings.Global; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 62 | import android.util.ArrayMap; |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 63 | import android.util.ArraySet; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 64 | import android.util.Log; |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 65 | import android.util.Pair; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 66 | import android.util.TimedRemoteCaller; |
| 67 | |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 68 | import com.android.internal.annotations.GuardedBy; |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 69 | import com.android.internal.annotations.VisibleForTesting; |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 70 | import com.android.internal.content.PackageMonitor; |
Jeff Sharkey | ba6f8c8 | 2016-11-09 12:25:44 -0700 | [diff] [blame] | 71 | import com.android.internal.os.TransferPipe; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 72 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 73 | import java.io.FileDescriptor; |
Jeff Sharkey | ba6f8c8 | 2016-11-09 12:25:44 -0700 | [diff] [blame] | 74 | import java.io.IOException; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 75 | import java.io.PrintWriter; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 76 | import java.util.ArrayList; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 77 | import java.util.Collection; |
| 78 | import java.util.Collections; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 79 | import java.util.List; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 80 | import java.util.Map; |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 81 | import java.util.Set; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 82 | import java.util.concurrent.TimeoutException; |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 83 | import java.util.concurrent.atomic.AtomicBoolean; |
Jeremy Joslin | 3452b69 | 2017-01-17 15:48:13 -0800 | [diff] [blame] | 84 | import java.util.concurrent.atomic.AtomicReference; |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 85 | import java.util.function.BiConsumer; |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 86 | import java.util.function.Supplier; |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 87 | import java.util.function.UnaryOperator; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 88 | |
| 89 | /** |
| 90 | * Backing service for {@link android.net.NetworkScoreManager}. |
| 91 | * @hide |
| 92 | */ |
| 93 | public class NetworkScoreService extends INetworkScoreService.Stub { |
| 94 | private static final String TAG = "NetworkScoreService"; |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 95 | private static final boolean DBG = Build.IS_DEBUGGABLE && Log.isLoggable(TAG, Log.DEBUG); |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 96 | private static final boolean VERBOSE = Build.IS_DEBUGGABLE && Log.isLoggable(TAG, Log.VERBOSE); |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 97 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 98 | private final Context mContext; |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 99 | private final NetworkScorerAppManager mNetworkScorerAppManager; |
Jeremy Joslin | 3452b69 | 2017-01-17 15:48:13 -0800 | [diff] [blame] | 100 | private final AtomicReference<RequestRecommendationCaller> mReqRecommendationCallerRef; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 101 | @GuardedBy("mScoreCaches") |
| 102 | private final Map<Integer, RemoteCallbackList<INetworkScoreCache>> mScoreCaches; |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 103 | /** Lock used to update mPackageMonitor when scorer package changes occur. */ |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 104 | private final Object mPackageMonitorLock = new Object(); |
| 105 | private final Object mServiceConnectionLock = new Object(); |
| 106 | private final Handler mHandler; |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 107 | private final DispatchingContentObserver mContentObserver; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 108 | |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 109 | @GuardedBy("mPackageMonitorLock") |
| 110 | private NetworkScorerPackageMonitor mPackageMonitor; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 111 | @GuardedBy("mServiceConnectionLock") |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 112 | private ScoringServiceConnection mServiceConnection; |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 113 | private volatile long mRecommendationRequestTimeoutMs; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 114 | |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 115 | private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { |
| 116 | @Override |
| 117 | public void onReceive(Context context, Intent intent) { |
| 118 | final String action = intent.getAction(); |
| 119 | final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); |
| 120 | if (DBG) Log.d(TAG, "Received " + action + " for userId " + userId); |
| 121 | if (userId == UserHandle.USER_NULL) return; |
| 122 | |
| 123 | if (Intent.ACTION_USER_UNLOCKED.equals(action)) { |
| 124 | onUserUnlocked(userId); |
| 125 | } |
| 126 | } |
| 127 | }; |
| 128 | |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 129 | /** |
| 130 | * Clears scores when the active scorer package is no longer valid and |
| 131 | * manages the service connection. |
| 132 | */ |
| 133 | private class NetworkScorerPackageMonitor extends PackageMonitor { |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 134 | final List<String> mPackagesToWatch; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 135 | |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 136 | private NetworkScorerPackageMonitor(List<String> packagesToWatch) { |
| 137 | mPackagesToWatch = packagesToWatch; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | @Override |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 141 | public void onPackageAdded(String packageName, int uid) { |
| 142 | evaluateBinding(packageName, true /* forceUnbind */); |
| 143 | } |
| 144 | |
| 145 | @Override |
| 146 | public void onPackageRemoved(String packageName, int uid) { |
| 147 | evaluateBinding(packageName, true /* forceUnbind */); |
| 148 | } |
| 149 | |
| 150 | @Override |
| 151 | public void onPackageModified(String packageName) { |
| 152 | evaluateBinding(packageName, false /* forceUnbind */); |
| 153 | } |
| 154 | |
| 155 | @Override |
| 156 | public boolean onHandleForceStop(Intent intent, String[] packages, int uid, boolean doit) { |
| 157 | if (doit) { // "doit" means the force stop happened instead of just being queried for. |
| 158 | for (String packageName : packages) { |
| 159 | evaluateBinding(packageName, true /* forceUnbind */); |
| 160 | } |
| 161 | } |
| 162 | return super.onHandleForceStop(intent, packages, uid, doit); |
| 163 | } |
| 164 | |
| 165 | @Override |
| 166 | public void onPackageUpdateFinished(String packageName, int uid) { |
| 167 | evaluateBinding(packageName, true /* forceUnbind */); |
| 168 | } |
| 169 | |
| 170 | private void evaluateBinding(String scorerPackageName, boolean forceUnbind) { |
Jeremy Joslin | 86c2a5e | 2016-12-21 13:35:02 -0800 | [diff] [blame] | 171 | if (!mPackagesToWatch.contains(scorerPackageName)) { |
| 172 | // Early exit when we don't care about the package that has changed. |
| 173 | return; |
| 174 | } |
| 175 | |
| 176 | if (DBG) { |
| 177 | Log.d(TAG, "Evaluating binding for: " + scorerPackageName |
| 178 | + ", forceUnbind=" + forceUnbind); |
| 179 | } |
| 180 | final NetworkScorerAppData activeScorer = mNetworkScorerAppManager.getActiveScorer(); |
| 181 | if (activeScorer == null) { |
| 182 | // Package change has invalidated a scorer, this will also unbind any service |
| 183 | // connection. |
| 184 | if (DBG) Log.d(TAG, "No active scorers available."); |
| 185 | unbindFromScoringServiceIfNeeded(); |
| 186 | } else if (activeScorer.packageName.equals(scorerPackageName)) { |
| 187 | // The active scoring service changed in some way. |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 188 | if (DBG) { |
Jeremy Joslin | 86c2a5e | 2016-12-21 13:35:02 -0800 | [diff] [blame] | 189 | Log.d(TAG, "Possible change to the active scorer: " |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 190 | + activeScorer.packageName); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 191 | } |
Jeremy Joslin | 86c2a5e | 2016-12-21 13:35:02 -0800 | [diff] [blame] | 192 | if (forceUnbind) { |
| 193 | unbindFromScoringServiceIfNeeded(); |
| 194 | } |
| 195 | bindToScoringServiceIfNeeded(activeScorer); |
| 196 | } else { |
| 197 | // One of the scoring apps on the device has changed and we may no longer be |
| 198 | // bound to the correct scoring app. The logic in bindToScoringServiceIfNeeded() |
| 199 | // will sort that out to leave us bound to the most recent active scorer. |
| 200 | if (DBG) { |
| 201 | Log.d(TAG, "Binding to " + activeScorer.packageName + " if needed."); |
| 202 | } |
| 203 | bindToScoringServiceIfNeeded(activeScorer); |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 204 | } |
| 205 | } |
| 206 | } |
| 207 | |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 208 | /** |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 209 | * Dispatches observed content changes to a handler for further processing. |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 210 | */ |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 211 | @VisibleForTesting |
| 212 | public static class DispatchingContentObserver extends ContentObserver { |
| 213 | final private Map<Uri, Integer> mUriEventMap; |
| 214 | final private Context mContext; |
| 215 | final private Handler mHandler; |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 216 | |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 217 | public DispatchingContentObserver(Context context, Handler handler) { |
| 218 | super(handler); |
| 219 | mContext = context; |
| 220 | mHandler = handler; |
| 221 | mUriEventMap = new ArrayMap<>(); |
| 222 | } |
| 223 | |
| 224 | void observe(Uri uri, int what) { |
| 225 | mUriEventMap.put(uri, what); |
| 226 | final ContentResolver resolver = mContext.getContentResolver(); |
| 227 | resolver.registerContentObserver(uri, false /*notifyForDescendants*/, this); |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 228 | } |
| 229 | |
| 230 | @Override |
| 231 | public void onChange(boolean selfChange) { |
| 232 | onChange(selfChange, null); |
| 233 | } |
| 234 | |
| 235 | @Override |
| 236 | public void onChange(boolean selfChange, Uri uri) { |
| 237 | if (DBG) Log.d(TAG, String.format("onChange(%s, %s)", selfChange, uri)); |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 238 | final Integer what = mUriEventMap.get(uri); |
| 239 | if (what != null) { |
| 240 | mHandler.obtainMessage(what).sendToTarget(); |
| 241 | } else { |
| 242 | Log.w(TAG, "No matching event to send for URI = " + uri); |
| 243 | } |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 244 | } |
| 245 | } |
| 246 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 247 | public NetworkScoreService(Context context) { |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 248 | this(context, new NetworkScorerAppManager(context), Looper.myLooper()); |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 249 | } |
| 250 | |
| 251 | @VisibleForTesting |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 252 | NetworkScoreService(Context context, NetworkScorerAppManager networkScoreAppManager, |
| 253 | Looper looper) { |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 254 | mContext = context; |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 255 | mNetworkScorerAppManager = networkScoreAppManager; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 256 | mScoreCaches = new ArrayMap<>(); |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 257 | IntentFilter filter = new IntentFilter(Intent.ACTION_USER_UNLOCKED); |
| 258 | // TODO: Need to update when we support per-user scorers. http://b/23422763 |
| 259 | mContext.registerReceiverAsUser( |
| 260 | mUserIntentReceiver, UserHandle.SYSTEM, filter, null /* broadcastPermission*/, |
| 261 | null /* scheduler */); |
Jeremy Joslin | 3452b69 | 2017-01-17 15:48:13 -0800 | [diff] [blame] | 262 | mReqRecommendationCallerRef = new AtomicReference<>( |
| 263 | new RequestRecommendationCaller(TimedRemoteCaller.DEFAULT_CALL_TIMEOUT_MILLIS)); |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 264 | mRecommendationRequestTimeoutMs = TimedRemoteCaller.DEFAULT_CALL_TIMEOUT_MILLIS; |
| 265 | mHandler = new ServiceHandler(looper); |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 266 | mContentObserver = new DispatchingContentObserver(context, mHandler); |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 267 | } |
| 268 | |
| 269 | /** Called when the system is ready to run third-party code but before it actually does so. */ |
| 270 | void systemReady() { |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 271 | if (DBG) Log.d(TAG, "systemReady"); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 272 | registerPackageMonitorIfNeeded(); |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 273 | registerRecommendationSettingsObserver(); |
| 274 | refreshRecommendationRequestTimeoutMs(); |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 275 | } |
| 276 | |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 277 | /** Called when the system is ready for us to start third-party code. */ |
| 278 | void systemRunning() { |
| 279 | if (DBG) Log.d(TAG, "systemRunning"); |
| 280 | bindToScoringServiceIfNeeded(); |
| 281 | } |
| 282 | |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 283 | private void onUserUnlocked(int userId) { |
| 284 | registerPackageMonitorIfNeeded(); |
| 285 | bindToScoringServiceIfNeeded(); |
| 286 | } |
| 287 | |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 288 | private void registerRecommendationSettingsObserver() { |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 289 | final List<String> providerPackages = |
| 290 | mNetworkScorerAppManager.getPotentialRecommendationProviderPackages(); |
| 291 | if (!providerPackages.isEmpty()) { |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 292 | final Uri enabledUri = Global.getUriFor(Global.NETWORK_RECOMMENDATIONS_ENABLED); |
| 293 | mContentObserver.observe(enabledUri, |
| 294 | ServiceHandler.MSG_RECOMMENDATIONS_ENABLED_CHANGED); |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 295 | } |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 296 | |
| 297 | final Uri timeoutUri = Global.getUriFor(Global.NETWORK_RECOMMENDATION_REQUEST_TIMEOUT_MS); |
| 298 | mContentObserver.observe(timeoutUri, |
| 299 | ServiceHandler.MSG_RECOMMENDATION_REQUEST_TIMEOUT_CHANGED); |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 300 | } |
| 301 | |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 302 | private void registerPackageMonitorIfNeeded() { |
| 303 | if (DBG) Log.d(TAG, "registerPackageMonitorIfNeeded"); |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 304 | final List<String> providerPackages = |
| 305 | mNetworkScorerAppManager.getPotentialRecommendationProviderPackages(); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 306 | synchronized (mPackageMonitorLock) { |
| 307 | // Unregister the current monitor if needed. |
| 308 | if (mPackageMonitor != null) { |
| 309 | if (DBG) { |
| 310 | Log.d(TAG, "Unregistering package monitor for " |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 311 | + mPackageMonitor.mPackagesToWatch); |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 312 | } |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 313 | mPackageMonitor.unregister(); |
| 314 | mPackageMonitor = null; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 315 | } |
| 316 | |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 317 | // Create and register the monitor if there are packages that could be providers. |
| 318 | if (!providerPackages.isEmpty()) { |
| 319 | mPackageMonitor = new NetworkScorerPackageMonitor(providerPackages); |
Xiaohui Chen | e4de5a0 | 2015-09-22 15:33:31 -0700 | [diff] [blame] | 320 | // TODO: Need to update when we support per-user scorers. http://b/23422763 |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 321 | mPackageMonitor.register(mContext, null /* thread */, UserHandle.SYSTEM, |
| 322 | false /* externalStorage */); |
| 323 | if (DBG) { |
| 324 | Log.d(TAG, "Registered package monitor for " |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 325 | + mPackageMonitor.mPackagesToWatch); |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 326 | } |
| 327 | } |
| 328 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 329 | } |
| 330 | |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 331 | private void bindToScoringServiceIfNeeded() { |
| 332 | if (DBG) Log.d(TAG, "bindToScoringServiceIfNeeded"); |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 333 | NetworkScorerAppData scorerData = mNetworkScorerAppManager.getActiveScorer(); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 334 | bindToScoringServiceIfNeeded(scorerData); |
| 335 | } |
| 336 | |
| 337 | private void bindToScoringServiceIfNeeded(NetworkScorerAppData scorerData) { |
| 338 | if (DBG) Log.d(TAG, "bindToScoringServiceIfNeeded(" + scorerData + ")"); |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 339 | if (scorerData != null && scorerData.recommendationServiceClassName != null) { |
| 340 | ComponentName componentName = new ComponentName(scorerData.packageName, |
| 341 | scorerData.recommendationServiceClassName); |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 342 | synchronized (mServiceConnectionLock) { |
| 343 | // If we're connected to a different component then drop it. |
| 344 | if (mServiceConnection != null |
| 345 | && !mServiceConnection.mComponentName.equals(componentName)) { |
| 346 | unbindFromScoringServiceIfNeeded(); |
| 347 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 348 | |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 349 | // If we're not connected at all then create a new connection. |
| 350 | if (mServiceConnection == null) { |
Jeremy Joslin | 134c9d3 | 2017-01-09 16:22:20 -0800 | [diff] [blame] | 351 | mServiceConnection = new ScoringServiceConnection(componentName, |
| 352 | scorerData.packageUid); |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 353 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 354 | |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 355 | // Make sure the connection is connected (idempotent) |
| 356 | mServiceConnection.connect(mContext); |
| 357 | } |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 358 | } else { // otherwise make sure it isn't bound. |
| 359 | unbindFromScoringServiceIfNeeded(); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 360 | } |
| 361 | } |
| 362 | |
| 363 | private void unbindFromScoringServiceIfNeeded() { |
| 364 | if (DBG) Log.d(TAG, "unbindFromScoringServiceIfNeeded"); |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 365 | synchronized (mServiceConnectionLock) { |
| 366 | if (mServiceConnection != null) { |
| 367 | mServiceConnection.disconnect(mContext); |
| 368 | } |
| 369 | mServiceConnection = null; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 370 | } |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 371 | clearInternal(); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 372 | } |
| 373 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 374 | @Override |
| 375 | public boolean updateScores(ScoredNetwork[] networks) { |
Jeremy Joslin | 134c9d3 | 2017-01-09 16:22:20 -0800 | [diff] [blame] | 376 | if (!isCallerActiveScorer(getCallingUid())) { |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 377 | throw new SecurityException("Caller with UID " + getCallingUid() + |
| 378 | " is not the active scorer."); |
| 379 | } |
| 380 | |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 381 | final long token = Binder.clearCallingIdentity(); |
| 382 | try { |
| 383 | // Separate networks by type. |
| 384 | Map<Integer, List<ScoredNetwork>> networksByType = new ArrayMap<>(); |
| 385 | for (ScoredNetwork network : networks) { |
| 386 | List<ScoredNetwork> networkList = networksByType.get(network.networkKey.type); |
| 387 | if (networkList == null) { |
| 388 | networkList = new ArrayList<>(); |
| 389 | networksByType.put(network.networkKey.type, networkList); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 390 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 391 | networkList.add(network); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 392 | } |
| 393 | |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 394 | // Pass the scores of each type down to the appropriate network scorer. |
| 395 | for (final Map.Entry<Integer, List<ScoredNetwork>> entry : networksByType.entrySet()) { |
| 396 | final RemoteCallbackList<INetworkScoreCache> callbackList; |
| 397 | final boolean isEmpty; |
| 398 | synchronized (mScoreCaches) { |
| 399 | callbackList = mScoreCaches.get(entry.getKey()); |
| 400 | isEmpty = callbackList == null |
| 401 | || callbackList.getRegisteredCallbackCount() == 0; |
| 402 | } |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 403 | |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 404 | if (isEmpty) { |
| 405 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 406 | Log.v(TAG, "No scorer registered for type " + entry.getKey() |
| 407 | + ", discarding"); |
| 408 | } |
| 409 | continue; |
| 410 | } |
| 411 | |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 412 | final BiConsumer<INetworkScoreCache, Object> consumer = |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 413 | FilteringCacheUpdatingConsumer.create(mContext, entry.getValue(), |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 414 | entry.getKey()); |
| 415 | sendCacheUpdateCallback(consumer, Collections.singleton(callbackList)); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 416 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 417 | |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 418 | return true; |
| 419 | } finally { |
| 420 | Binder.restoreCallingIdentity(token); |
| 421 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 422 | } |
| 423 | |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 424 | /** |
| 425 | * A {@link BiConsumer} implementation that filters the given {@link ScoredNetwork} |
| 426 | * list (if needed) before invoking {@link INetworkScoreCache#updateScores(List)} on the |
| 427 | * accepted {@link INetworkScoreCache} implementation. |
| 428 | */ |
| 429 | @VisibleForTesting |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 430 | static class FilteringCacheUpdatingConsumer |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 431 | implements BiConsumer<INetworkScoreCache, Object> { |
| 432 | private final Context mContext; |
| 433 | private final List<ScoredNetwork> mScoredNetworkList; |
| 434 | private final int mNetworkType; |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 435 | // TODO: 1/23/17 - Consider a Map if we implement more filters. |
| 436 | // These are created on-demand to defer the construction cost until |
| 437 | // an instance is actually needed. |
| 438 | private UnaryOperator<List<ScoredNetwork>> mCurrentNetworkFilter; |
| 439 | private UnaryOperator<List<ScoredNetwork>> mScanResultsFilter; |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 440 | |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 441 | static FilteringCacheUpdatingConsumer create(Context context, |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 442 | List<ScoredNetwork> scoredNetworkList, int networkType) { |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 443 | return new FilteringCacheUpdatingConsumer(context, scoredNetworkList, networkType, |
| 444 | null, null); |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 445 | } |
| 446 | |
| 447 | @VisibleForTesting |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 448 | FilteringCacheUpdatingConsumer(Context context, |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 449 | List<ScoredNetwork> scoredNetworkList, int networkType, |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 450 | UnaryOperator<List<ScoredNetwork>> currentNetworkFilter, |
| 451 | UnaryOperator<List<ScoredNetwork>> scanResultsFilter) { |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 452 | mContext = context; |
| 453 | mScoredNetworkList = scoredNetworkList; |
| 454 | mNetworkType = networkType; |
| 455 | mCurrentNetworkFilter = currentNetworkFilter; |
| 456 | mScanResultsFilter = scanResultsFilter; |
| 457 | } |
| 458 | |
| 459 | @Override |
| 460 | public void accept(INetworkScoreCache networkScoreCache, Object cookie) { |
| 461 | int filterType = NetworkScoreManager.CACHE_FILTER_NONE; |
| 462 | if (cookie instanceof Integer) { |
| 463 | filterType = (Integer) cookie; |
| 464 | } |
| 465 | |
| 466 | try { |
| 467 | final List<ScoredNetwork> filteredNetworkList = |
| 468 | filterScores(mScoredNetworkList, filterType); |
| 469 | if (!filteredNetworkList.isEmpty()) { |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 470 | networkScoreCache.updateScores(filteredNetworkList); |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 471 | } |
| 472 | } catch (RemoteException e) { |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 473 | if (VERBOSE) { |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 474 | Log.v(TAG, "Unable to update scores of type " + mNetworkType, e); |
| 475 | } |
| 476 | } |
| 477 | } |
| 478 | |
| 479 | /** |
| 480 | * Applies the appropriate filter and returns the filtered results. |
| 481 | */ |
| 482 | private List<ScoredNetwork> filterScores(List<ScoredNetwork> scoredNetworkList, |
| 483 | int filterType) { |
| 484 | switch (filterType) { |
| 485 | case NetworkScoreManager.CACHE_FILTER_NONE: |
| 486 | return scoredNetworkList; |
| 487 | |
| 488 | case NetworkScoreManager.CACHE_FILTER_CURRENT_NETWORK: |
| 489 | if (mCurrentNetworkFilter == null) { |
| 490 | mCurrentNetworkFilter = |
| 491 | new CurrentNetworkScoreCacheFilter(new WifiInfoSupplier(mContext)); |
| 492 | } |
| 493 | return mCurrentNetworkFilter.apply(scoredNetworkList); |
| 494 | |
| 495 | case NetworkScoreManager.CACHE_FILTER_SCAN_RESULTS: |
| 496 | if (mScanResultsFilter == null) { |
| 497 | mScanResultsFilter = new ScanResultsScoreCacheFilter( |
| 498 | new ScanResultsSupplier(mContext)); |
| 499 | } |
| 500 | return mScanResultsFilter.apply(scoredNetworkList); |
| 501 | |
| 502 | default: |
| 503 | Log.w(TAG, "Unknown filter type: " + filterType); |
| 504 | return scoredNetworkList; |
| 505 | } |
| 506 | } |
| 507 | } |
| 508 | |
| 509 | /** |
| 510 | * Helper class that improves the testability of the cache filter Functions. |
| 511 | */ |
| 512 | private static class WifiInfoSupplier implements Supplier<WifiInfo> { |
| 513 | private final Context mContext; |
| 514 | |
| 515 | WifiInfoSupplier(Context context) { |
| 516 | mContext = context; |
| 517 | } |
| 518 | |
| 519 | @Override |
| 520 | public WifiInfo get() { |
| 521 | WifiManager wifiManager = mContext.getSystemService(WifiManager.class); |
| 522 | if (wifiManager != null) { |
| 523 | return wifiManager.getConnectionInfo(); |
| 524 | } |
| 525 | Log.w(TAG, "WifiManager is null, failed to return the WifiInfo."); |
| 526 | return null; |
| 527 | } |
| 528 | } |
| 529 | |
| 530 | /** |
| 531 | * Helper class that improves the testability of the cache filter Functions. |
| 532 | */ |
| 533 | private static class ScanResultsSupplier implements Supplier<List<ScanResult>> { |
| 534 | private final Context mContext; |
| 535 | |
| 536 | ScanResultsSupplier(Context context) { |
| 537 | mContext = context; |
| 538 | } |
| 539 | |
| 540 | @Override |
| 541 | public List<ScanResult> get() { |
| 542 | WifiScanner wifiScanner = mContext.getSystemService(WifiScanner.class); |
| 543 | if (wifiScanner != null) { |
| 544 | return wifiScanner.getSingleScanResults(); |
| 545 | } |
| 546 | Log.w(TAG, "WifiScanner is null, failed to return scan results."); |
| 547 | return Collections.emptyList(); |
| 548 | } |
| 549 | } |
| 550 | |
| 551 | /** |
| 552 | * Filters the given set of {@link ScoredNetwork}s and returns a new List containing only the |
| 553 | * {@link ScoredNetwork} associated with the current network. If no network is connected the |
| 554 | * returned list will be empty. |
| 555 | * <p> |
| 556 | * Note: this filter performs some internal caching for consistency and performance. The |
| 557 | * current network is determined at construction time and never changed. Also, the |
| 558 | * last filtered list is saved so if the same input is provided multiple times in a row |
| 559 | * the computation is only done once. |
| 560 | */ |
| 561 | @VisibleForTesting |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 562 | static class CurrentNetworkScoreCacheFilter implements UnaryOperator<List<ScoredNetwork>> { |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 563 | private final NetworkKey mCurrentNetwork; |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 564 | |
| 565 | CurrentNetworkScoreCacheFilter(Supplier<WifiInfo> wifiInfoSupplier) { |
| 566 | mCurrentNetwork = NetworkKey.createFromWifiInfo(wifiInfoSupplier.get()); |
| 567 | } |
| 568 | |
| 569 | @Override |
| 570 | public List<ScoredNetwork> apply(List<ScoredNetwork> scoredNetworks) { |
| 571 | if (mCurrentNetwork == null || scoredNetworks.isEmpty()) { |
| 572 | return Collections.emptyList(); |
| 573 | } |
| 574 | |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 575 | for (int i = 0; i < scoredNetworks.size(); i++) { |
| 576 | final ScoredNetwork scoredNetwork = scoredNetworks.get(i); |
| 577 | if (scoredNetwork.networkKey.equals(mCurrentNetwork)) { |
| 578 | return Collections.singletonList(scoredNetwork); |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 579 | } |
| 580 | } |
| 581 | |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 582 | return Collections.emptyList(); |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 583 | } |
| 584 | } |
| 585 | |
| 586 | /** |
| 587 | * Filters the given set of {@link ScoredNetwork}s and returns a new List containing only the |
| 588 | * {@link ScoredNetwork} associated with the current set of {@link ScanResult}s. |
| 589 | * If there are no {@link ScanResult}s the returned list will be empty. |
| 590 | * <p> |
| 591 | * Note: this filter performs some internal caching for consistency and performance. The |
| 592 | * current set of ScanResults is determined at construction time and never changed. |
| 593 | * Also, the last filtered list is saved so if the same input is provided multiple |
| 594 | * times in a row the computation is only done once. |
| 595 | */ |
| 596 | @VisibleForTesting |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 597 | static class ScanResultsScoreCacheFilter implements UnaryOperator<List<ScoredNetwork>> { |
| 598 | private final Set<NetworkKey> mScanResultKeys; |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 599 | |
| 600 | ScanResultsScoreCacheFilter(Supplier<List<ScanResult>> resultsSupplier) { |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 601 | List<ScanResult> scanResults = resultsSupplier.get(); |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 602 | final int size = scanResults.size(); |
| 603 | mScanResultKeys = new ArraySet<>(size); |
| 604 | for (int i = 0; i < size; i++) { |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 605 | ScanResult scanResult = scanResults.get(i); |
| 606 | mScanResultKeys.add(NetworkKey.createFromScanResult(scanResult)); |
| 607 | } |
| 608 | } |
| 609 | |
| 610 | @Override |
| 611 | public List<ScoredNetwork> apply(List<ScoredNetwork> scoredNetworks) { |
| 612 | if (mScanResultKeys.isEmpty() || scoredNetworks.isEmpty()) { |
| 613 | return Collections.emptyList(); |
| 614 | } |
| 615 | |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 616 | List<ScoredNetwork> filteredScores = new ArrayList<>(); |
| 617 | for (int i = 0; i < scoredNetworks.size(); i++) { |
| 618 | final ScoredNetwork scoredNetwork = scoredNetworks.get(i); |
| 619 | if (mScanResultKeys.contains(scoredNetwork.networkKey)) { |
| 620 | filteredScores.add(scoredNetwork); |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 621 | } |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 622 | } |
| 623 | |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 624 | return filteredScores; |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 625 | } |
| 626 | } |
| 627 | |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 628 | private boolean isCallerSystemUid() { |
| 629 | // REQUEST_NETWORK_SCORES is a signature only permission. |
| 630 | return mContext.checkCallingOrSelfPermission(permission.REQUEST_NETWORK_SCORES) == |
| 631 | PackageManager.PERMISSION_GRANTED; |
| 632 | } |
| 633 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 634 | @Override |
| 635 | public boolean clearScores() { |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 636 | // Only the active scorer or the system should be allowed to flush all scores. |
Jeremy Joslin | 134c9d3 | 2017-01-09 16:22:20 -0800 | [diff] [blame] | 637 | if (isCallerActiveScorer(getCallingUid()) || isCallerSystemUid()) { |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 638 | final long token = Binder.clearCallingIdentity(); |
| 639 | try { |
| 640 | clearInternal(); |
| 641 | return true; |
| 642 | } finally { |
| 643 | Binder.restoreCallingIdentity(token); |
| 644 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 645 | } else { |
| 646 | throw new SecurityException( |
| 647 | "Caller is neither the active scorer nor the scorer manager."); |
| 648 | } |
| 649 | } |
| 650 | |
| 651 | @Override |
| 652 | public boolean setActiveScorer(String packageName) { |
Jeff Davidson | e56f2bb | 2014-11-05 11:14:19 -0800 | [diff] [blame] | 653 | // TODO: For now, since SCORE_NETWORKS requires an app to be privileged, we allow such apps |
| 654 | // to directly set the scorer app rather than having to use the consent dialog. The |
| 655 | // assumption is that anyone bundling a scorer app with the system is trusted by the OEM to |
| 656 | // do the right thing and not enable this feature without explaining it to the user. |
| 657 | // In the future, should this API be opened to 3p apps, we will need to lock this down and |
| 658 | // figure out another way to streamline the UX. |
| 659 | |
Jeff Davidson | e56f2bb | 2014-11-05 11:14:19 -0800 | [diff] [blame] | 660 | mContext.enforceCallingOrSelfPermission(permission.SCORE_NETWORKS, TAG); |
| 661 | |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 662 | // Scorers (recommendation providers) are selected and no longer set. |
| 663 | return false; |
Jeff Davidson | 26fd143 | 2014-07-29 09:39:52 -0700 | [diff] [blame] | 664 | } |
| 665 | |
Jeremy Joslin | 134c9d3 | 2017-01-09 16:22:20 -0800 | [diff] [blame] | 666 | /** |
| 667 | * Determine whether the application with the given UID is the enabled scorer. |
| 668 | * |
| 669 | * @param callingUid the UID to check |
| 670 | * @return true if the provided UID is the active scorer, false otherwise. |
| 671 | */ |
| 672 | @Override |
| 673 | public boolean isCallerActiveScorer(int callingUid) { |
| 674 | synchronized (mServiceConnectionLock) { |
| 675 | return mServiceConnection != null && mServiceConnection.mScoringAppUid == callingUid; |
| 676 | } |
| 677 | } |
| 678 | |
Jeremy Joslin | 6c1ca28 | 2017-01-10 13:08:32 -0800 | [diff] [blame] | 679 | /** |
| 680 | * Obtain the package name of the current active network scorer. |
| 681 | * |
| 682 | * @return the full package name of the current active scorer, or null if there is no active |
| 683 | * scorer. |
| 684 | */ |
| 685 | @Override |
| 686 | public String getActiveScorerPackage() { |
| 687 | synchronized (mServiceConnectionLock) { |
| 688 | if (mServiceConnection != null) { |
| 689 | return mServiceConnection.mComponentName.getPackageName(); |
| 690 | } |
| 691 | } |
| 692 | return null; |
| 693 | } |
| 694 | |
Jeff Davidson | 26fd143 | 2014-07-29 09:39:52 -0700 | [diff] [blame] | 695 | @Override |
| 696 | public void disableScoring() { |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 697 | // Only the active scorer or the system should be allowed to disable scoring. |
Jeremy Joslin | 134c9d3 | 2017-01-09 16:22:20 -0800 | [diff] [blame] | 698 | if (isCallerActiveScorer(getCallingUid()) || isCallerSystemUid()) { |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 699 | // no-op for now but we could write to the setting if needed. |
Jeff Davidson | 26fd143 | 2014-07-29 09:39:52 -0700 | [diff] [blame] | 700 | } else { |
| 701 | throw new SecurityException( |
| 702 | "Caller is neither the active scorer nor the scorer manager."); |
Jeff Davidson | b096bdc | 2014-07-01 12:29:11 -0700 | [diff] [blame] | 703 | } |
Jeff Davidson | 26fd143 | 2014-07-29 09:39:52 -0700 | [diff] [blame] | 704 | } |
| 705 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 706 | /** Clear scores. Callers are responsible for checking permissions as appropriate. */ |
| 707 | private void clearInternal() { |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 708 | sendCacheUpdateCallback(new BiConsumer<INetworkScoreCache, Object>() { |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 709 | @Override |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 710 | public void accept(INetworkScoreCache networkScoreCache, Object cookie) { |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 711 | try { |
| 712 | networkScoreCache.clearScores(); |
| 713 | } catch (RemoteException e) { |
| 714 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 715 | Log.v(TAG, "Unable to clear scores", e); |
| 716 | } |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 717 | } |
| 718 | } |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 719 | }, getScoreCacheLists()); |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 720 | } |
| 721 | |
| 722 | @Override |
Jeremy Joslin | c5ac587 | 2016-11-30 15:05:40 -0800 | [diff] [blame] | 723 | public void registerNetworkScoreCache(int networkType, |
| 724 | INetworkScoreCache scoreCache, |
| 725 | int filterType) { |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 726 | mContext.enforceCallingOrSelfPermission(permission.REQUEST_NETWORK_SCORES, TAG); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 727 | final long token = Binder.clearCallingIdentity(); |
| 728 | try { |
| 729 | synchronized (mScoreCaches) { |
| 730 | RemoteCallbackList<INetworkScoreCache> callbackList = mScoreCaches.get(networkType); |
| 731 | if (callbackList == null) { |
| 732 | callbackList = new RemoteCallbackList<>(); |
| 733 | mScoreCaches.put(networkType, callbackList); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 734 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 735 | if (!callbackList.register(scoreCache, filterType)) { |
| 736 | if (callbackList.getRegisteredCallbackCount() == 0) { |
| 737 | mScoreCaches.remove(networkType); |
| 738 | } |
| 739 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 740 | Log.v(TAG, "Unable to register NetworkScoreCache for type " + networkType); |
| 741 | } |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 742 | } |
| 743 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 744 | } finally { |
| 745 | Binder.restoreCallingIdentity(token); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 746 | } |
| 747 | } |
| 748 | |
| 749 | @Override |
| 750 | public void unregisterNetworkScoreCache(int networkType, INetworkScoreCache scoreCache) { |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 751 | mContext.enforceCallingOrSelfPermission(permission.REQUEST_NETWORK_SCORES, TAG); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 752 | final long token = Binder.clearCallingIdentity(); |
| 753 | try { |
| 754 | synchronized (mScoreCaches) { |
| 755 | RemoteCallbackList<INetworkScoreCache> callbackList = mScoreCaches.get(networkType); |
| 756 | if (callbackList == null || !callbackList.unregister(scoreCache)) { |
| 757 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 758 | Log.v(TAG, "Unable to unregister NetworkScoreCache for type " |
| 759 | + networkType); |
| 760 | } |
| 761 | } else if (callbackList.getRegisteredCallbackCount() == 0) { |
| 762 | mScoreCaches.remove(networkType); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 763 | } |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 764 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 765 | } finally { |
| 766 | Binder.restoreCallingIdentity(token); |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 767 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 768 | } |
| 769 | |
| 770 | @Override |
Jeremy Joslin | d1daf6d | 2016-11-28 17:47:35 -0800 | [diff] [blame] | 771 | public RecommendationResult requestRecommendation(RecommendationRequest request) { |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 772 | mContext.enforceCallingOrSelfPermission(permission.REQUEST_NETWORK_SCORES, TAG); |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 773 | throwIfCalledOnMainThread(); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 774 | final long token = Binder.clearCallingIdentity(); |
| 775 | try { |
| 776 | final INetworkRecommendationProvider provider = getRecommendationProvider(); |
| 777 | if (provider != null) { |
| 778 | try { |
Jeremy Joslin | 3452b69 | 2017-01-17 15:48:13 -0800 | [diff] [blame] | 779 | final RequestRecommendationCaller caller = mReqRecommendationCallerRef.get(); |
| 780 | return caller.getRecommendationResult(provider, request); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 781 | } catch (RemoteException | TimeoutException e) { |
| 782 | Log.w(TAG, "Failed to request a recommendation.", e); |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 783 | // TODO: 12/15/16 - Keep track of failures. |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 784 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 785 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 786 | |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 787 | if (DBG) { |
| 788 | Log.d(TAG, "Returning the default network recommendation."); |
| 789 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 790 | |
Jeremy Joslin | 26a45e5 | 2017-01-18 11:55:17 -0800 | [diff] [blame] | 791 | if (request != null && request.getDefaultWifiConfig() != null) { |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 792 | return RecommendationResult.createConnectRecommendation( |
Jeremy Joslin | 26a45e5 | 2017-01-18 11:55:17 -0800 | [diff] [blame] | 793 | request.getDefaultWifiConfig()); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 794 | } |
| 795 | return RecommendationResult.createDoNotConnectRecommendation(); |
| 796 | } finally { |
| 797 | Binder.restoreCallingIdentity(token); |
Jeremy Joslin | d1daf6d | 2016-11-28 17:47:35 -0800 | [diff] [blame] | 798 | } |
Jeremy Joslin | d1daf6d | 2016-11-28 17:47:35 -0800 | [diff] [blame] | 799 | } |
| 800 | |
Jeremy Joslin | 998d7ca | 2016-12-28 15:56:46 -0800 | [diff] [blame] | 801 | /** |
| 802 | * Request a recommendation for the best network to connect to |
| 803 | * taking into account the inputs from the {@link RecommendationRequest}. |
| 804 | * |
| 805 | * @param request a {@link RecommendationRequest} instance containing the details of the request |
| 806 | * @param remoteCallback a {@link IRemoteCallback} instance to invoke when the recommendation |
| 807 | * is available. |
| 808 | * @throws SecurityException if the caller is not the system |
| 809 | */ |
| 810 | @Override |
| 811 | public void requestRecommendationAsync(RecommendationRequest request, |
| 812 | RemoteCallback remoteCallback) { |
Jeremy Joslin | 6397ab5 | 2017-01-18 15:12:01 -0800 | [diff] [blame] | 813 | mContext.enforceCallingOrSelfPermission(permission.REQUEST_NETWORK_SCORES, TAG); |
Jeremy Joslin | 998d7ca | 2016-12-28 15:56:46 -0800 | [diff] [blame] | 814 | |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 815 | final OneTimeCallback oneTimeCallback = new OneTimeCallback(remoteCallback); |
| 816 | final Pair<RecommendationRequest, OneTimeCallback> pair = |
| 817 | Pair.create(request, oneTimeCallback); |
| 818 | final Message timeoutMsg = mHandler.obtainMessage( |
| 819 | ServiceHandler.MSG_RECOMMENDATION_REQUEST_TIMEOUT, pair); |
| 820 | final INetworkRecommendationProvider provider = getRecommendationProvider(); |
| 821 | final long token = Binder.clearCallingIdentity(); |
| 822 | try { |
| 823 | if (provider != null) { |
| 824 | try { |
| 825 | mHandler.sendMessageDelayed(timeoutMsg, mRecommendationRequestTimeoutMs); |
| 826 | provider.requestRecommendation(request, new IRemoteCallback.Stub() { |
| 827 | @Override |
| 828 | public void sendResult(Bundle data) throws RemoteException { |
| 829 | // Remove the timeout message |
| 830 | mHandler.removeMessages(timeoutMsg.what, pair); |
| 831 | oneTimeCallback.sendResult(data); |
| 832 | } |
| 833 | }, 0 /*sequence*/); |
| 834 | return; |
| 835 | } catch (RemoteException e) { |
| 836 | Log.w(TAG, "Failed to request a recommendation.", e); |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 837 | // TODO: 12/15/16 - Keep track of failures. |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 838 | // Remove the timeout message |
| 839 | mHandler.removeMessages(timeoutMsg.what, pair); |
| 840 | // Will fall through and send back the default recommendation. |
| 841 | } |
| 842 | } |
| 843 | } finally { |
| 844 | Binder.restoreCallingIdentity(token); |
Jeremy Joslin | 998d7ca | 2016-12-28 15:56:46 -0800 | [diff] [blame] | 845 | } |
| 846 | |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 847 | // Else send back the default recommendation. |
| 848 | sendDefaultRecommendationResponse(request, oneTimeCallback); |
Jeremy Joslin | 998d7ca | 2016-12-28 15:56:46 -0800 | [diff] [blame] | 849 | } |
| 850 | |
Jeremy Joslin | d1daf6d | 2016-11-28 17:47:35 -0800 | [diff] [blame] | 851 | @Override |
Jeremy Joslin | b2087a1 | 2016-12-13 16:11:51 -0800 | [diff] [blame] | 852 | public boolean requestScores(NetworkKey[] networks) { |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 853 | mContext.enforceCallingOrSelfPermission(permission.REQUEST_NETWORK_SCORES, TAG); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 854 | final long token = Binder.clearCallingIdentity(); |
| 855 | try { |
| 856 | final INetworkRecommendationProvider provider = getRecommendationProvider(); |
| 857 | if (provider != null) { |
| 858 | try { |
| 859 | provider.requestScores(networks); |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 860 | // TODO: 12/15/16 - Consider pushing null scores into the cache to |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 861 | // prevent repeated requests for the same scores. |
| 862 | return true; |
| 863 | } catch (RemoteException e) { |
| 864 | Log.w(TAG, "Failed to request scores.", e); |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame^] | 865 | // TODO: 12/15/16 - Keep track of failures. |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 866 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 867 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 868 | return false; |
| 869 | } finally { |
| 870 | Binder.restoreCallingIdentity(token); |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 871 | } |
Jeremy Joslin | b2087a1 | 2016-12-13 16:11:51 -0800 | [diff] [blame] | 872 | } |
| 873 | |
| 874 | @Override |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 875 | protected void dump(final FileDescriptor fd, final PrintWriter writer, final String[] args) { |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 876 | mContext.enforceCallingOrSelfPermission(permission.DUMP, TAG); |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 877 | NetworkScorerAppData currentScorer = mNetworkScorerAppManager.getActiveScorer(); |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 878 | if (currentScorer == null) { |
| 879 | writer.println("Scoring is disabled."); |
| 880 | return; |
| 881 | } |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 882 | writer.println("Current scorer: " + currentScorer.packageName); |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 883 | |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 884 | sendCacheUpdateCallback(new BiConsumer<INetworkScoreCache, Object>() { |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 885 | @Override |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 886 | public void accept(INetworkScoreCache networkScoreCache, Object cookie) { |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 887 | try { |
| 888 | TransferPipe.dumpAsync(networkScoreCache.asBinder(), fd, args); |
| 889 | } catch (IOException | RemoteException e) { |
| 890 | writer.println("Failed to dump score cache: " + e); |
| 891 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 892 | } |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 893 | }, getScoreCacheLists()); |
| 894 | |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 895 | synchronized (mServiceConnectionLock) { |
| 896 | if (mServiceConnection != null) { |
| 897 | mServiceConnection.dump(fd, writer, args); |
| 898 | } else { |
| 899 | writer.println("ScoringServiceConnection: null"); |
| 900 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 901 | } |
| 902 | writer.flush(); |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 903 | } |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 904 | |
| 905 | /** |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 906 | * Returns a {@link Collection} of all {@link RemoteCallbackList}s that are currently active. |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 907 | * |
| 908 | * <p>May be used to perform an action on all score caches without potentially strange behavior |
| 909 | * if a new scorer is registered during that action's execution. |
| 910 | */ |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 911 | private Collection<RemoteCallbackList<INetworkScoreCache>> getScoreCacheLists() { |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 912 | synchronized (mScoreCaches) { |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 913 | return new ArrayList<>(mScoreCaches.values()); |
| 914 | } |
| 915 | } |
| 916 | |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 917 | private void sendCacheUpdateCallback(BiConsumer<INetworkScoreCache, Object> consumer, |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 918 | Collection<RemoteCallbackList<INetworkScoreCache>> remoteCallbackLists) { |
| 919 | for (RemoteCallbackList<INetworkScoreCache> callbackList : remoteCallbackLists) { |
| 920 | synchronized (callbackList) { // Ensure only one active broadcast per RemoteCallbackList |
| 921 | final int count = callbackList.beginBroadcast(); |
| 922 | try { |
| 923 | for (int i = 0; i < count; i++) { |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 924 | consumer.accept(callbackList.getBroadcastItem(i), |
| 925 | callbackList.getRegisteredCallbackCookie(i)); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 926 | } |
| 927 | } finally { |
| 928 | callbackList.finishBroadcast(); |
| 929 | } |
| 930 | } |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 931 | } |
| 932 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 933 | |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 934 | private void throwIfCalledOnMainThread() { |
| 935 | if (Thread.currentThread() == mContext.getMainLooper().getThread()) { |
| 936 | throw new RuntimeException("Cannot invoke on the main thread"); |
| 937 | } |
| 938 | } |
| 939 | |
| 940 | @Nullable |
| 941 | private INetworkRecommendationProvider getRecommendationProvider() { |
| 942 | synchronized (mServiceConnectionLock) { |
| 943 | if (mServiceConnection != null) { |
| 944 | return mServiceConnection.getRecommendationProvider(); |
| 945 | } |
| 946 | } |
| 947 | return null; |
| 948 | } |
| 949 | |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 950 | @VisibleForTesting |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 951 | public void refreshRecommendationRequestTimeoutMs() { |
| 952 | final ContentResolver cr = mContext.getContentResolver(); |
| 953 | long timeoutMs = Settings.Global.getLong(cr, |
| 954 | Global.NETWORK_RECOMMENDATION_REQUEST_TIMEOUT_MS, -1L /*default*/); |
| 955 | if (timeoutMs < 0) { |
| 956 | timeoutMs = TimedRemoteCaller.DEFAULT_CALL_TIMEOUT_MILLIS; |
| 957 | } |
| 958 | if (DBG) Log.d(TAG, "Updating the recommendation request timeout to " + timeoutMs + " ms"); |
| 959 | mRecommendationRequestTimeoutMs = timeoutMs; |
Jeremy Joslin | 3452b69 | 2017-01-17 15:48:13 -0800 | [diff] [blame] | 960 | mReqRecommendationCallerRef.set(new RequestRecommendationCaller(timeoutMs)); |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 961 | } |
| 962 | |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 963 | private static class ScoringServiceConnection implements ServiceConnection { |
| 964 | private final ComponentName mComponentName; |
Jeremy Joslin | 134c9d3 | 2017-01-09 16:22:20 -0800 | [diff] [blame] | 965 | private final int mScoringAppUid; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 966 | private volatile boolean mBound = false; |
| 967 | private volatile boolean mConnected = false; |
| 968 | private volatile INetworkRecommendationProvider mRecommendationProvider; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 969 | |
Jeremy Joslin | 134c9d3 | 2017-01-09 16:22:20 -0800 | [diff] [blame] | 970 | ScoringServiceConnection(ComponentName componentName, int scoringAppUid) { |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 971 | mComponentName = componentName; |
Jeremy Joslin | 134c9d3 | 2017-01-09 16:22:20 -0800 | [diff] [blame] | 972 | mScoringAppUid = scoringAppUid; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 973 | } |
| 974 | |
| 975 | void connect(Context context) { |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 976 | if (!mBound) { |
Joe LaPenna | 25e7ec2 | 2016-12-27 14:50:14 -0800 | [diff] [blame] | 977 | Intent service = new Intent(NetworkScoreManager.ACTION_RECOMMEND_NETWORKS); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 978 | service.setComponent(mComponentName); |
| 979 | mBound = context.bindServiceAsUser(service, this, |
| 980 | Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE, |
| 981 | UserHandle.SYSTEM); |
| 982 | if (!mBound) { |
| 983 | Log.w(TAG, "Bind call failed for " + service); |
| 984 | } else { |
| 985 | if (DBG) Log.d(TAG, "ScoringServiceConnection bound."); |
| 986 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 987 | } |
| 988 | } |
| 989 | |
| 990 | void disconnect(Context context) { |
| 991 | try { |
| 992 | if (mBound) { |
| 993 | mBound = false; |
| 994 | context.unbindService(this); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 995 | if (DBG) Log.d(TAG, "ScoringServiceConnection unbound."); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 996 | } |
| 997 | } catch (RuntimeException e) { |
| 998 | Log.e(TAG, "Unbind failed.", e); |
| 999 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 1000 | |
| 1001 | mRecommendationProvider = null; |
| 1002 | } |
| 1003 | |
| 1004 | INetworkRecommendationProvider getRecommendationProvider() { |
| 1005 | return mRecommendationProvider; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1006 | } |
| 1007 | |
| 1008 | @Override |
| 1009 | public void onServiceConnected(ComponentName name, IBinder service) { |
| 1010 | if (DBG) Log.d(TAG, "ScoringServiceConnection: " + name.flattenToString()); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 1011 | mConnected = true; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 1012 | mRecommendationProvider = INetworkRecommendationProvider.Stub.asInterface(service); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1013 | } |
| 1014 | |
| 1015 | @Override |
| 1016 | public void onServiceDisconnected(ComponentName name) { |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 1017 | if (DBG) { |
| 1018 | Log.d(TAG, "ScoringServiceConnection, disconnected: " + name.flattenToString()); |
| 1019 | } |
| 1020 | mConnected = false; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 1021 | mRecommendationProvider = null; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1022 | } |
| 1023 | |
| 1024 | public void dump(FileDescriptor fd, PrintWriter writer, String[] args) { |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 1025 | writer.println("ScoringServiceConnection: " + mComponentName + ", bound: " + mBound |
| 1026 | + ", connected: " + mConnected); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1027 | } |
| 1028 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 1029 | |
| 1030 | /** |
| 1031 | * Executes the async requestRecommendation() call with a timeout. |
| 1032 | */ |
| 1033 | private static final class RequestRecommendationCaller |
| 1034 | extends TimedRemoteCaller<RecommendationResult> { |
| 1035 | private final IRemoteCallback mCallback; |
| 1036 | |
| 1037 | RequestRecommendationCaller(long callTimeoutMillis) { |
| 1038 | super(callTimeoutMillis); |
| 1039 | mCallback = new IRemoteCallback.Stub() { |
| 1040 | @Override |
| 1041 | public void sendResult(Bundle data) throws RemoteException { |
| 1042 | final RecommendationResult result = |
| 1043 | data.getParcelable(EXTRA_RECOMMENDATION_RESULT); |
| 1044 | final int sequence = data.getInt(EXTRA_SEQUENCE, -1); |
| 1045 | onRemoteMethodResult(result, sequence); |
| 1046 | } |
| 1047 | }; |
| 1048 | } |
| 1049 | |
| 1050 | /** |
| 1051 | * Runs the requestRecommendation() call on the given {@link INetworkRecommendationProvider} |
| 1052 | * instance. |
| 1053 | * |
| 1054 | * @param target the {@link INetworkRecommendationProvider} to request a recommendation |
| 1055 | * from |
| 1056 | * @param request the {@link RecommendationRequest} from the calling client |
| 1057 | * @return a {@link RecommendationResult} from the provider |
| 1058 | * @throws RemoteException if the call failed |
| 1059 | * @throws TimeoutException if the call took longer than the set timeout |
| 1060 | */ |
| 1061 | RecommendationResult getRecommendationResult(INetworkRecommendationProvider target, |
| 1062 | RecommendationRequest request) throws RemoteException, TimeoutException { |
| 1063 | final int sequence = onBeforeRemoteCall(); |
| 1064 | target.requestRecommendation(request, mCallback, sequence); |
| 1065 | return getResultTimed(sequence); |
| 1066 | } |
| 1067 | } |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 1068 | |
| 1069 | /** |
| 1070 | * A wrapper around {@link RemoteCallback} that guarantees |
| 1071 | * {@link RemoteCallback#sendResult(Bundle)} will be invoked at most once. |
| 1072 | */ |
| 1073 | @VisibleForTesting |
| 1074 | public static final class OneTimeCallback { |
| 1075 | private final RemoteCallback mRemoteCallback; |
| 1076 | private final AtomicBoolean mCallbackRun; |
| 1077 | |
| 1078 | public OneTimeCallback(RemoteCallback remoteCallback) { |
| 1079 | mRemoteCallback = remoteCallback; |
| 1080 | mCallbackRun = new AtomicBoolean(false); |
| 1081 | } |
| 1082 | |
| 1083 | public void sendResult(Bundle data) { |
| 1084 | if (mCallbackRun.compareAndSet(false, true)) { |
| 1085 | mRemoteCallback.sendResult(data); |
| 1086 | } |
| 1087 | } |
| 1088 | } |
| 1089 | |
| 1090 | private static void sendDefaultRecommendationResponse(RecommendationRequest request, |
| 1091 | OneTimeCallback remoteCallback) { |
| 1092 | if (DBG) { |
| 1093 | Log.d(TAG, "Returning the default network recommendation."); |
| 1094 | } |
| 1095 | |
| 1096 | final RecommendationResult result; |
Jeremy Joslin | 26a45e5 | 2017-01-18 11:55:17 -0800 | [diff] [blame] | 1097 | if (request != null && request.getDefaultWifiConfig() != null) { |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 1098 | result = RecommendationResult.createConnectRecommendation( |
Jeremy Joslin | 26a45e5 | 2017-01-18 11:55:17 -0800 | [diff] [blame] | 1099 | request.getDefaultWifiConfig()); |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 1100 | } else { |
| 1101 | result = RecommendationResult.createDoNotConnectRecommendation(); |
| 1102 | } |
| 1103 | |
| 1104 | final Bundle data = new Bundle(); |
| 1105 | data.putParcelable(EXTRA_RECOMMENDATION_RESULT, result); |
| 1106 | remoteCallback.sendResult(data); |
| 1107 | } |
| 1108 | |
| 1109 | @VisibleForTesting |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 1110 | public final class ServiceHandler extends Handler { |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 1111 | public static final int MSG_RECOMMENDATION_REQUEST_TIMEOUT = 1; |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 1112 | public static final int MSG_RECOMMENDATIONS_ENABLED_CHANGED = 2; |
| 1113 | public static final int MSG_RECOMMENDATION_REQUEST_TIMEOUT_CHANGED = 3; |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 1114 | |
| 1115 | public ServiceHandler(Looper looper) { |
| 1116 | super(looper); |
| 1117 | } |
| 1118 | |
| 1119 | @Override |
| 1120 | public void handleMessage(Message msg) { |
| 1121 | final int what = msg.what; |
| 1122 | switch (what) { |
| 1123 | case MSG_RECOMMENDATION_REQUEST_TIMEOUT: |
| 1124 | if (DBG) { |
| 1125 | Log.d(TAG, "Network recommendation request timed out."); |
| 1126 | } |
| 1127 | final Pair<RecommendationRequest, OneTimeCallback> pair = |
| 1128 | (Pair<RecommendationRequest, OneTimeCallback>) msg.obj; |
| 1129 | final RecommendationRequest request = pair.first; |
| 1130 | final OneTimeCallback remoteCallback = pair.second; |
| 1131 | sendDefaultRecommendationResponse(request, remoteCallback); |
| 1132 | break; |
| 1133 | |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 1134 | case MSG_RECOMMENDATIONS_ENABLED_CHANGED: |
| 1135 | bindToScoringServiceIfNeeded(); |
| 1136 | break; |
| 1137 | |
| 1138 | case MSG_RECOMMENDATION_REQUEST_TIMEOUT_CHANGED: |
| 1139 | refreshRecommendationRequestTimeoutMs(); |
| 1140 | break; |
| 1141 | |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 1142 | default: |
| 1143 | Log.w(TAG,"Unknown message: " + what); |
| 1144 | } |
| 1145 | } |
| 1146 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 1147 | } |