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 | a5172f6 | 2017-02-02 14:27:05 -0800 | [diff] [blame] | 56 | import android.os.Process; |
Jeremy Joslin | 998d7ca | 2016-12-28 15:56:46 -0800 | [diff] [blame] | 57 | import android.os.RemoteCallback; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 58 | import android.os.RemoteCallbackList; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 59 | import android.os.RemoteException; |
Jeff Davidson | ac7285d | 2014-08-08 15:12:47 -0700 | [diff] [blame] | 60 | import android.os.UserHandle; |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 61 | import android.provider.Settings; |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 62 | import android.provider.Settings.Global; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 63 | import android.util.ArrayMap; |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame] | 64 | import android.util.ArraySet; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 65 | import android.util.Log; |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 66 | import android.util.Pair; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 67 | import android.util.TimedRemoteCaller; |
| 68 | |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 69 | import com.android.internal.annotations.GuardedBy; |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 70 | import com.android.internal.annotations.VisibleForTesting; |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 71 | import com.android.internal.content.PackageMonitor; |
Jeff Sharkey | ba6f8c8 | 2016-11-09 12:25:44 -0700 | [diff] [blame] | 72 | import com.android.internal.os.TransferPipe; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 73 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 74 | import java.io.FileDescriptor; |
Jeff Sharkey | ba6f8c8 | 2016-11-09 12:25:44 -0700 | [diff] [blame] | 75 | import java.io.IOException; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 76 | import java.io.PrintWriter; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 77 | import java.util.ArrayList; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 78 | import java.util.Collection; |
| 79 | import java.util.Collections; |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 80 | import java.util.List; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 81 | import java.util.Map; |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame] | 82 | import java.util.Set; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 83 | import java.util.concurrent.TimeoutException; |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 84 | import java.util.concurrent.atomic.AtomicBoolean; |
Jeremy Joslin | 3452b69 | 2017-01-17 15:48:13 -0800 | [diff] [blame] | 85 | import java.util.concurrent.atomic.AtomicReference; |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 86 | import java.util.function.BiConsumer; |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 87 | import java.util.function.Supplier; |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame] | 88 | import java.util.function.UnaryOperator; |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 89 | |
| 90 | /** |
| 91 | * Backing service for {@link android.net.NetworkScoreManager}. |
| 92 | * @hide |
| 93 | */ |
| 94 | public class NetworkScoreService extends INetworkScoreService.Stub { |
| 95 | private static final String TAG = "NetworkScoreService"; |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 96 | 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] | 97 | 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] | 98 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 99 | private final Context mContext; |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 100 | private final NetworkScorerAppManager mNetworkScorerAppManager; |
Jeremy Joslin | 3452b69 | 2017-01-17 15:48:13 -0800 | [diff] [blame] | 101 | private final AtomicReference<RequestRecommendationCaller> mReqRecommendationCallerRef; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 102 | @GuardedBy("mScoreCaches") |
| 103 | private final Map<Integer, RemoteCallbackList<INetworkScoreCache>> mScoreCaches; |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 104 | /** Lock used to update mPackageMonitor when scorer package changes occur. */ |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 105 | private final Object mPackageMonitorLock = new Object(); |
| 106 | private final Object mServiceConnectionLock = new Object(); |
| 107 | private final Handler mHandler; |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 108 | private final DispatchingContentObserver mContentObserver; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 109 | |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 110 | @GuardedBy("mPackageMonitorLock") |
| 111 | private NetworkScorerPackageMonitor mPackageMonitor; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 112 | @GuardedBy("mServiceConnectionLock") |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 113 | private ScoringServiceConnection mServiceConnection; |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 114 | private volatile long mRecommendationRequestTimeoutMs; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 115 | |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 116 | private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { |
| 117 | @Override |
| 118 | public void onReceive(Context context, Intent intent) { |
| 119 | final String action = intent.getAction(); |
| 120 | final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); |
| 121 | if (DBG) Log.d(TAG, "Received " + action + " for userId " + userId); |
| 122 | if (userId == UserHandle.USER_NULL) return; |
| 123 | |
| 124 | if (Intent.ACTION_USER_UNLOCKED.equals(action)) { |
| 125 | onUserUnlocked(userId); |
| 126 | } |
| 127 | } |
| 128 | }; |
| 129 | |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 130 | /** |
| 131 | * Clears scores when the active scorer package is no longer valid and |
| 132 | * manages the service connection. |
| 133 | */ |
| 134 | private class NetworkScorerPackageMonitor extends PackageMonitor { |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 135 | final List<String> mPackagesToWatch; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 136 | |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 137 | private NetworkScorerPackageMonitor(List<String> packagesToWatch) { |
| 138 | mPackagesToWatch = packagesToWatch; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | @Override |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 142 | public void onPackageAdded(String packageName, int uid) { |
| 143 | evaluateBinding(packageName, true /* forceUnbind */); |
| 144 | } |
| 145 | |
| 146 | @Override |
| 147 | public void onPackageRemoved(String packageName, int uid) { |
| 148 | evaluateBinding(packageName, true /* forceUnbind */); |
| 149 | } |
| 150 | |
| 151 | @Override |
| 152 | public void onPackageModified(String packageName) { |
| 153 | evaluateBinding(packageName, false /* forceUnbind */); |
| 154 | } |
| 155 | |
| 156 | @Override |
| 157 | public boolean onHandleForceStop(Intent intent, String[] packages, int uid, boolean doit) { |
| 158 | if (doit) { // "doit" means the force stop happened instead of just being queried for. |
| 159 | for (String packageName : packages) { |
| 160 | evaluateBinding(packageName, true /* forceUnbind */); |
| 161 | } |
| 162 | } |
| 163 | return super.onHandleForceStop(intent, packages, uid, doit); |
| 164 | } |
| 165 | |
| 166 | @Override |
| 167 | public void onPackageUpdateFinished(String packageName, int uid) { |
| 168 | evaluateBinding(packageName, true /* forceUnbind */); |
| 169 | } |
| 170 | |
| 171 | private void evaluateBinding(String scorerPackageName, boolean forceUnbind) { |
Jeremy Joslin | 86c2a5e | 2016-12-21 13:35:02 -0800 | [diff] [blame] | 172 | if (!mPackagesToWatch.contains(scorerPackageName)) { |
| 173 | // Early exit when we don't care about the package that has changed. |
| 174 | return; |
| 175 | } |
| 176 | |
| 177 | if (DBG) { |
| 178 | Log.d(TAG, "Evaluating binding for: " + scorerPackageName |
| 179 | + ", forceUnbind=" + forceUnbind); |
| 180 | } |
| 181 | final NetworkScorerAppData activeScorer = mNetworkScorerAppManager.getActiveScorer(); |
| 182 | if (activeScorer == null) { |
| 183 | // Package change has invalidated a scorer, this will also unbind any service |
| 184 | // connection. |
| 185 | if (DBG) Log.d(TAG, "No active scorers available."); |
| 186 | unbindFromScoringServiceIfNeeded(); |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 187 | } else if (activeScorer.getRecommendationServicePackageName().equals(scorerPackageName)) |
| 188 | { |
Jeremy Joslin | 86c2a5e | 2016-12-21 13:35:02 -0800 | [diff] [blame] | 189 | // The active scoring service changed in some way. |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 190 | if (DBG) { |
Jeremy Joslin | 86c2a5e | 2016-12-21 13:35:02 -0800 | [diff] [blame] | 191 | Log.d(TAG, "Possible change to the active scorer: " |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 192 | + activeScorer.getRecommendationServicePackageName()); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 193 | } |
Jeremy Joslin | 86c2a5e | 2016-12-21 13:35:02 -0800 | [diff] [blame] | 194 | if (forceUnbind) { |
| 195 | unbindFromScoringServiceIfNeeded(); |
| 196 | } |
| 197 | bindToScoringServiceIfNeeded(activeScorer); |
| 198 | } else { |
| 199 | // One of the scoring apps on the device has changed and we may no longer be |
| 200 | // bound to the correct scoring app. The logic in bindToScoringServiceIfNeeded() |
| 201 | // will sort that out to leave us bound to the most recent active scorer. |
| 202 | if (DBG) { |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 203 | Log.d(TAG, "Binding to " + activeScorer.getRecommendationServiceComponent() |
| 204 | + " if needed."); |
Jeremy Joslin | 86c2a5e | 2016-12-21 13:35:02 -0800 | [diff] [blame] | 205 | } |
| 206 | bindToScoringServiceIfNeeded(activeScorer); |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 207 | } |
| 208 | } |
| 209 | } |
| 210 | |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 211 | /** |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 212 | * Dispatches observed content changes to a handler for further processing. |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 213 | */ |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 214 | @VisibleForTesting |
| 215 | public static class DispatchingContentObserver extends ContentObserver { |
| 216 | final private Map<Uri, Integer> mUriEventMap; |
| 217 | final private Context mContext; |
| 218 | final private Handler mHandler; |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 219 | |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 220 | public DispatchingContentObserver(Context context, Handler handler) { |
| 221 | super(handler); |
| 222 | mContext = context; |
| 223 | mHandler = handler; |
| 224 | mUriEventMap = new ArrayMap<>(); |
| 225 | } |
| 226 | |
| 227 | void observe(Uri uri, int what) { |
| 228 | mUriEventMap.put(uri, what); |
| 229 | final ContentResolver resolver = mContext.getContentResolver(); |
| 230 | resolver.registerContentObserver(uri, false /*notifyForDescendants*/, this); |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 231 | } |
| 232 | |
| 233 | @Override |
| 234 | public void onChange(boolean selfChange) { |
| 235 | onChange(selfChange, null); |
| 236 | } |
| 237 | |
| 238 | @Override |
| 239 | public void onChange(boolean selfChange, Uri uri) { |
| 240 | if (DBG) Log.d(TAG, String.format("onChange(%s, %s)", selfChange, uri)); |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 241 | final Integer what = mUriEventMap.get(uri); |
| 242 | if (what != null) { |
| 243 | mHandler.obtainMessage(what).sendToTarget(); |
| 244 | } else { |
| 245 | Log.w(TAG, "No matching event to send for URI = " + uri); |
| 246 | } |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 247 | } |
| 248 | } |
| 249 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 250 | public NetworkScoreService(Context context) { |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 251 | this(context, new NetworkScorerAppManager(context), Looper.myLooper()); |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | @VisibleForTesting |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 255 | NetworkScoreService(Context context, NetworkScorerAppManager networkScoreAppManager, |
| 256 | Looper looper) { |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 257 | mContext = context; |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 258 | mNetworkScorerAppManager = networkScoreAppManager; |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 259 | mScoreCaches = new ArrayMap<>(); |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 260 | IntentFilter filter = new IntentFilter(Intent.ACTION_USER_UNLOCKED); |
| 261 | // TODO: Need to update when we support per-user scorers. http://b/23422763 |
| 262 | mContext.registerReceiverAsUser( |
| 263 | mUserIntentReceiver, UserHandle.SYSTEM, filter, null /* broadcastPermission*/, |
| 264 | null /* scheduler */); |
Jeremy Joslin | 3452b69 | 2017-01-17 15:48:13 -0800 | [diff] [blame] | 265 | mReqRecommendationCallerRef = new AtomicReference<>( |
| 266 | new RequestRecommendationCaller(TimedRemoteCaller.DEFAULT_CALL_TIMEOUT_MILLIS)); |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 267 | mRecommendationRequestTimeoutMs = TimedRemoteCaller.DEFAULT_CALL_TIMEOUT_MILLIS; |
| 268 | mHandler = new ServiceHandler(looper); |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 269 | mContentObserver = new DispatchingContentObserver(context, mHandler); |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 270 | } |
| 271 | |
| 272 | /** Called when the system is ready to run third-party code but before it actually does so. */ |
| 273 | void systemReady() { |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 274 | if (DBG) Log.d(TAG, "systemReady"); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 275 | registerPackageMonitorIfNeeded(); |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 276 | registerRecommendationSettingsObserver(); |
| 277 | refreshRecommendationRequestTimeoutMs(); |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 278 | } |
| 279 | |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 280 | /** Called when the system is ready for us to start third-party code. */ |
| 281 | void systemRunning() { |
| 282 | if (DBG) Log.d(TAG, "systemRunning"); |
| 283 | bindToScoringServiceIfNeeded(); |
| 284 | } |
| 285 | |
Jeremy Joslin | 967b581 | 2016-06-02 07:58:14 -0700 | [diff] [blame] | 286 | private void onUserUnlocked(int userId) { |
| 287 | registerPackageMonitorIfNeeded(); |
| 288 | bindToScoringServiceIfNeeded(); |
| 289 | } |
| 290 | |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 291 | private void registerRecommendationSettingsObserver() { |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 292 | final List<String> providerPackages = |
| 293 | mNetworkScorerAppManager.getPotentialRecommendationProviderPackages(); |
| 294 | if (!providerPackages.isEmpty()) { |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 295 | final Uri enabledUri = Global.getUriFor(Global.NETWORK_RECOMMENDATIONS_ENABLED); |
| 296 | mContentObserver.observe(enabledUri, |
| 297 | ServiceHandler.MSG_RECOMMENDATIONS_ENABLED_CHANGED); |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 298 | } |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 299 | |
| 300 | final Uri timeoutUri = Global.getUriFor(Global.NETWORK_RECOMMENDATION_REQUEST_TIMEOUT_MS); |
| 301 | mContentObserver.observe(timeoutUri, |
| 302 | ServiceHandler.MSG_RECOMMENDATION_REQUEST_TIMEOUT_CHANGED); |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 303 | } |
| 304 | |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 305 | private void registerPackageMonitorIfNeeded() { |
| 306 | if (DBG) Log.d(TAG, "registerPackageMonitorIfNeeded"); |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 307 | final List<String> providerPackages = |
| 308 | mNetworkScorerAppManager.getPotentialRecommendationProviderPackages(); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 309 | synchronized (mPackageMonitorLock) { |
| 310 | // Unregister the current monitor if needed. |
| 311 | if (mPackageMonitor != null) { |
| 312 | if (DBG) { |
| 313 | Log.d(TAG, "Unregistering package monitor for " |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 314 | + mPackageMonitor.mPackagesToWatch); |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 315 | } |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 316 | mPackageMonitor.unregister(); |
| 317 | mPackageMonitor = null; |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 318 | } |
| 319 | |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 320 | // Create and register the monitor if there are packages that could be providers. |
| 321 | if (!providerPackages.isEmpty()) { |
| 322 | mPackageMonitor = new NetworkScorerPackageMonitor(providerPackages); |
Xiaohui Chen | e4de5a0 | 2015-09-22 15:33:31 -0700 | [diff] [blame] | 323 | // 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] | 324 | mPackageMonitor.register(mContext, null /* thread */, UserHandle.SYSTEM, |
| 325 | false /* externalStorage */); |
| 326 | if (DBG) { |
| 327 | Log.d(TAG, "Registered package monitor for " |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 328 | + mPackageMonitor.mPackagesToWatch); |
Jeff Davidson | 7842f64 | 2014-11-23 13:48:12 -0800 | [diff] [blame] | 329 | } |
| 330 | } |
| 331 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 332 | } |
| 333 | |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 334 | private void bindToScoringServiceIfNeeded() { |
| 335 | if (DBG) Log.d(TAG, "bindToScoringServiceIfNeeded"); |
Amin Shaikh | aa09aa0 | 2016-11-21 17:27:53 -0800 | [diff] [blame] | 336 | NetworkScorerAppData scorerData = mNetworkScorerAppManager.getActiveScorer(); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 337 | bindToScoringServiceIfNeeded(scorerData); |
| 338 | } |
| 339 | |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 340 | private void bindToScoringServiceIfNeeded(NetworkScorerAppData appData) { |
| 341 | if (DBG) Log.d(TAG, "bindToScoringServiceIfNeeded(" + appData + ")"); |
| 342 | if (appData != null) { |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 343 | synchronized (mServiceConnectionLock) { |
| 344 | // If we're connected to a different component then drop it. |
| 345 | if (mServiceConnection != null |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 346 | && !mServiceConnection.mAppData.equals(appData)) { |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 347 | unbindFromScoringServiceIfNeeded(); |
| 348 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 349 | |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 350 | // If we're not connected at all then create a new connection. |
| 351 | if (mServiceConnection == null) { |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 352 | mServiceConnection = new ScoringServiceConnection(appData); |
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 | 35f34ea | 2017-02-03 09:13:51 -0800 | [diff] [blame] | 628 | private boolean callerCanRequestScores() { |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 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 | 35f34ea | 2017-02-03 09:13:51 -0800 | [diff] [blame] | 637 | if (isCallerActiveScorer(getCallingUid()) || callerCanRequestScores()) { |
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) { |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 675 | return mServiceConnection != null |
| 676 | && mServiceConnection.mAppData.packageUid == callingUid; |
Jeremy Joslin | 134c9d3 | 2017-01-09 16:22:20 -0800 | [diff] [blame] | 677 | } |
| 678 | } |
| 679 | |
Jeremy Joslin | a5172f6 | 2017-02-02 14:27:05 -0800 | [diff] [blame] | 680 | private boolean isCallerSystemProcess(int callingUid) { |
| 681 | return callingUid == Process.SYSTEM_UID; |
| 682 | } |
| 683 | |
Jeremy Joslin | 6c1ca28 | 2017-01-10 13:08:32 -0800 | [diff] [blame] | 684 | /** |
| 685 | * Obtain the package name of the current active network scorer. |
| 686 | * |
| 687 | * @return the full package name of the current active scorer, or null if there is no active |
| 688 | * scorer. |
| 689 | */ |
| 690 | @Override |
| 691 | public String getActiveScorerPackage() { |
| 692 | synchronized (mServiceConnectionLock) { |
| 693 | if (mServiceConnection != null) { |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 694 | return mServiceConnection.getPackageName(); |
Jeremy Joslin | 6c1ca28 | 2017-01-10 13:08:32 -0800 | [diff] [blame] | 695 | } |
| 696 | } |
| 697 | return null; |
| 698 | } |
| 699 | |
Jeremy Joslin | a5172f6 | 2017-02-02 14:27:05 -0800 | [diff] [blame] | 700 | |
| 701 | /** |
| 702 | * Returns metadata about the active scorer or <code>null</code> if there is no active scorer. |
| 703 | */ |
| 704 | @Override |
| 705 | public NetworkScorerAppData getActiveScorer() { |
| 706 | // Only the system can access this data. |
| 707 | if (isCallerSystemProcess(getCallingUid()) || callerCanRequestScores()) { |
| 708 | synchronized (mServiceConnectionLock) { |
| 709 | if (mServiceConnection != null) { |
| 710 | return mServiceConnection.mAppData; |
| 711 | } |
| 712 | } |
| 713 | } else { |
| 714 | throw new SecurityException( |
| 715 | "Caller is neither the system process nor a score requester."); |
| 716 | } |
| 717 | |
| 718 | return null; |
| 719 | } |
| 720 | |
Jeremy Joslin | f95c865 | 2017-02-09 15:32:04 -0800 | [diff] [blame^] | 721 | /** |
| 722 | * Returns the list of available scorer apps. The list will be empty if there are |
| 723 | * no valid scorers. |
| 724 | */ |
| 725 | @Override |
| 726 | public List<NetworkScorerAppData> getAllValidScorers() { |
| 727 | return mNetworkScorerAppManager.getAllValidScorers(); |
| 728 | } |
| 729 | |
Jeff Davidson | 26fd143 | 2014-07-29 09:39:52 -0700 | [diff] [blame] | 730 | @Override |
| 731 | public void disableScoring() { |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 732 | // Only the active scorer or the system should be allowed to disable scoring. |
Jeremy Joslin | 35f34ea | 2017-02-03 09:13:51 -0800 | [diff] [blame] | 733 | if (isCallerActiveScorer(getCallingUid()) || callerCanRequestScores()) { |
Jeremy Joslin | fa4f08e | 2016-12-06 07:42:38 -0800 | [diff] [blame] | 734 | // 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] | 735 | } else { |
| 736 | throw new SecurityException( |
| 737 | "Caller is neither the active scorer nor the scorer manager."); |
Jeff Davidson | b096bdc | 2014-07-01 12:29:11 -0700 | [diff] [blame] | 738 | } |
Jeff Davidson | 26fd143 | 2014-07-29 09:39:52 -0700 | [diff] [blame] | 739 | } |
| 740 | |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 741 | /** Clear scores. Callers are responsible for checking permissions as appropriate. */ |
| 742 | private void clearInternal() { |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 743 | sendCacheUpdateCallback(new BiConsumer<INetworkScoreCache, Object>() { |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 744 | @Override |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 745 | public void accept(INetworkScoreCache networkScoreCache, Object cookie) { |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 746 | try { |
| 747 | networkScoreCache.clearScores(); |
| 748 | } catch (RemoteException e) { |
| 749 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 750 | Log.v(TAG, "Unable to clear scores", e); |
| 751 | } |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 752 | } |
| 753 | } |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 754 | }, getScoreCacheLists()); |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 755 | } |
| 756 | |
| 757 | @Override |
Jeremy Joslin | c5ac587 | 2016-11-30 15:05:40 -0800 | [diff] [blame] | 758 | public void registerNetworkScoreCache(int networkType, |
| 759 | INetworkScoreCache scoreCache, |
| 760 | int filterType) { |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 761 | mContext.enforceCallingOrSelfPermission(permission.REQUEST_NETWORK_SCORES, TAG); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 762 | final long token = Binder.clearCallingIdentity(); |
| 763 | try { |
| 764 | synchronized (mScoreCaches) { |
| 765 | RemoteCallbackList<INetworkScoreCache> callbackList = mScoreCaches.get(networkType); |
| 766 | if (callbackList == null) { |
| 767 | callbackList = new RemoteCallbackList<>(); |
| 768 | mScoreCaches.put(networkType, callbackList); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 769 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 770 | if (!callbackList.register(scoreCache, filterType)) { |
| 771 | if (callbackList.getRegisteredCallbackCount() == 0) { |
| 772 | mScoreCaches.remove(networkType); |
| 773 | } |
| 774 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 775 | Log.v(TAG, "Unable to register NetworkScoreCache for type " + networkType); |
| 776 | } |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 777 | } |
| 778 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 779 | } finally { |
| 780 | Binder.restoreCallingIdentity(token); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 781 | } |
| 782 | } |
| 783 | |
| 784 | @Override |
| 785 | public void unregisterNetworkScoreCache(int networkType, INetworkScoreCache scoreCache) { |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 786 | mContext.enforceCallingOrSelfPermission(permission.REQUEST_NETWORK_SCORES, TAG); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 787 | final long token = Binder.clearCallingIdentity(); |
| 788 | try { |
| 789 | synchronized (mScoreCaches) { |
| 790 | RemoteCallbackList<INetworkScoreCache> callbackList = mScoreCaches.get(networkType); |
| 791 | if (callbackList == null || !callbackList.unregister(scoreCache)) { |
| 792 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 793 | Log.v(TAG, "Unable to unregister NetworkScoreCache for type " |
| 794 | + networkType); |
| 795 | } |
| 796 | } else if (callbackList.getRegisteredCallbackCount() == 0) { |
| 797 | mScoreCaches.remove(networkType); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 798 | } |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 799 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 800 | } finally { |
| 801 | Binder.restoreCallingIdentity(token); |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 802 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 803 | } |
| 804 | |
| 805 | @Override |
Jeremy Joslin | d1daf6d | 2016-11-28 17:47:35 -0800 | [diff] [blame] | 806 | public RecommendationResult requestRecommendation(RecommendationRequest request) { |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 807 | mContext.enforceCallingOrSelfPermission(permission.REQUEST_NETWORK_SCORES, TAG); |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 808 | throwIfCalledOnMainThread(); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 809 | final long token = Binder.clearCallingIdentity(); |
| 810 | try { |
| 811 | final INetworkRecommendationProvider provider = getRecommendationProvider(); |
| 812 | if (provider != null) { |
| 813 | try { |
Jeremy Joslin | 3452b69 | 2017-01-17 15:48:13 -0800 | [diff] [blame] | 814 | final RequestRecommendationCaller caller = mReqRecommendationCallerRef.get(); |
| 815 | return caller.getRecommendationResult(provider, request); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 816 | } catch (RemoteException | TimeoutException e) { |
| 817 | Log.w(TAG, "Failed to request a recommendation.", e); |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame] | 818 | // TODO: 12/15/16 - Keep track of failures. |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 819 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 820 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 821 | |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 822 | if (DBG) { |
| 823 | Log.d(TAG, "Returning the default network recommendation."); |
| 824 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 825 | |
Jeremy Joslin | 26a45e5 | 2017-01-18 11:55:17 -0800 | [diff] [blame] | 826 | if (request != null && request.getDefaultWifiConfig() != null) { |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 827 | return RecommendationResult.createConnectRecommendation( |
Jeremy Joslin | 26a45e5 | 2017-01-18 11:55:17 -0800 | [diff] [blame] | 828 | request.getDefaultWifiConfig()); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 829 | } |
| 830 | return RecommendationResult.createDoNotConnectRecommendation(); |
| 831 | } finally { |
| 832 | Binder.restoreCallingIdentity(token); |
Jeremy Joslin | d1daf6d | 2016-11-28 17:47:35 -0800 | [diff] [blame] | 833 | } |
Jeremy Joslin | d1daf6d | 2016-11-28 17:47:35 -0800 | [diff] [blame] | 834 | } |
| 835 | |
Jeremy Joslin | 998d7ca | 2016-12-28 15:56:46 -0800 | [diff] [blame] | 836 | /** |
| 837 | * Request a recommendation for the best network to connect to |
| 838 | * taking into account the inputs from the {@link RecommendationRequest}. |
| 839 | * |
| 840 | * @param request a {@link RecommendationRequest} instance containing the details of the request |
| 841 | * @param remoteCallback a {@link IRemoteCallback} instance to invoke when the recommendation |
| 842 | * is available. |
| 843 | * @throws SecurityException if the caller is not the system |
| 844 | */ |
| 845 | @Override |
| 846 | public void requestRecommendationAsync(RecommendationRequest request, |
| 847 | RemoteCallback remoteCallback) { |
Jeremy Joslin | 6397ab5 | 2017-01-18 15:12:01 -0800 | [diff] [blame] | 848 | mContext.enforceCallingOrSelfPermission(permission.REQUEST_NETWORK_SCORES, TAG); |
Jeremy Joslin | 998d7ca | 2016-12-28 15:56:46 -0800 | [diff] [blame] | 849 | |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 850 | final OneTimeCallback oneTimeCallback = new OneTimeCallback(remoteCallback); |
| 851 | final Pair<RecommendationRequest, OneTimeCallback> pair = |
| 852 | Pair.create(request, oneTimeCallback); |
| 853 | final Message timeoutMsg = mHandler.obtainMessage( |
| 854 | ServiceHandler.MSG_RECOMMENDATION_REQUEST_TIMEOUT, pair); |
| 855 | final INetworkRecommendationProvider provider = getRecommendationProvider(); |
| 856 | final long token = Binder.clearCallingIdentity(); |
| 857 | try { |
| 858 | if (provider != null) { |
| 859 | try { |
| 860 | mHandler.sendMessageDelayed(timeoutMsg, mRecommendationRequestTimeoutMs); |
| 861 | provider.requestRecommendation(request, new IRemoteCallback.Stub() { |
| 862 | @Override |
| 863 | public void sendResult(Bundle data) throws RemoteException { |
| 864 | // Remove the timeout message |
| 865 | mHandler.removeMessages(timeoutMsg.what, pair); |
| 866 | oneTimeCallback.sendResult(data); |
| 867 | } |
| 868 | }, 0 /*sequence*/); |
| 869 | return; |
| 870 | } catch (RemoteException e) { |
| 871 | Log.w(TAG, "Failed to request a recommendation.", e); |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame] | 872 | // TODO: 12/15/16 - Keep track of failures. |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 873 | // Remove the timeout message |
| 874 | mHandler.removeMessages(timeoutMsg.what, pair); |
| 875 | // Will fall through and send back the default recommendation. |
| 876 | } |
| 877 | } |
| 878 | } finally { |
| 879 | Binder.restoreCallingIdentity(token); |
Jeremy Joslin | 998d7ca | 2016-12-28 15:56:46 -0800 | [diff] [blame] | 880 | } |
| 881 | |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 882 | // Else send back the default recommendation. |
| 883 | sendDefaultRecommendationResponse(request, oneTimeCallback); |
Jeremy Joslin | 998d7ca | 2016-12-28 15:56:46 -0800 | [diff] [blame] | 884 | } |
| 885 | |
Jeremy Joslin | d1daf6d | 2016-11-28 17:47:35 -0800 | [diff] [blame] | 886 | @Override |
Jeremy Joslin | b2087a1 | 2016-12-13 16:11:51 -0800 | [diff] [blame] | 887 | public boolean requestScores(NetworkKey[] networks) { |
Jeremy Joslin | 5519d7c | 2017-01-06 14:36:54 -0800 | [diff] [blame] | 888 | mContext.enforceCallingOrSelfPermission(permission.REQUEST_NETWORK_SCORES, TAG); |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 889 | final long token = Binder.clearCallingIdentity(); |
| 890 | try { |
| 891 | final INetworkRecommendationProvider provider = getRecommendationProvider(); |
| 892 | if (provider != null) { |
| 893 | try { |
| 894 | provider.requestScores(networks); |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame] | 895 | // TODO: 12/15/16 - Consider pushing null scores into the cache to |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 896 | // prevent repeated requests for the same scores. |
| 897 | return true; |
| 898 | } catch (RemoteException e) { |
| 899 | Log.w(TAG, "Failed to request scores.", e); |
Jeremy Joslin | e71fe2b | 2017-01-25 11:40:08 -0800 | [diff] [blame] | 900 | // TODO: 12/15/16 - Keep track of failures. |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 901 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 902 | } |
Jeremy Joslin | 8f5521a | 2016-12-20 14:36:20 -0800 | [diff] [blame] | 903 | return false; |
| 904 | } finally { |
| 905 | Binder.restoreCallingIdentity(token); |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 906 | } |
Jeremy Joslin | b2087a1 | 2016-12-13 16:11:51 -0800 | [diff] [blame] | 907 | } |
| 908 | |
| 909 | @Override |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 910 | protected void dump(final FileDescriptor fd, final PrintWriter writer, final String[] args) { |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 911 | mContext.enforceCallingOrSelfPermission(permission.DUMP, TAG); |
Jeremy Joslin | 534b6cf | 2017-01-25 18:20:21 -0800 | [diff] [blame] | 912 | final long token = Binder.clearCallingIdentity(); |
| 913 | try { |
| 914 | NetworkScorerAppData currentScorer = mNetworkScorerAppManager.getActiveScorer(); |
| 915 | if (currentScorer == null) { |
| 916 | writer.println("Scoring is disabled."); |
| 917 | return; |
| 918 | } |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 919 | writer.println("Current scorer: " + currentScorer); |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 920 | |
Jeremy Joslin | 534b6cf | 2017-01-25 18:20:21 -0800 | [diff] [blame] | 921 | sendCacheUpdateCallback(new BiConsumer<INetworkScoreCache, Object>() { |
| 922 | @Override |
| 923 | public void accept(INetworkScoreCache networkScoreCache, Object cookie) { |
| 924 | try { |
| 925 | TransferPipe.dumpAsync(networkScoreCache.asBinder(), fd, args); |
| 926 | } catch (IOException | RemoteException e) { |
| 927 | writer.println("Failed to dump score cache: " + e); |
| 928 | } |
| 929 | } |
| 930 | }, getScoreCacheLists()); |
| 931 | |
| 932 | synchronized (mServiceConnectionLock) { |
| 933 | if (mServiceConnection != null) { |
| 934 | mServiceConnection.dump(fd, writer, args); |
| 935 | } else { |
| 936 | writer.println("ScoringServiceConnection: null"); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 937 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 938 | } |
Jeremy Joslin | 534b6cf | 2017-01-25 18:20:21 -0800 | [diff] [blame] | 939 | writer.flush(); |
| 940 | } finally { |
| 941 | Binder.restoreCallingIdentity(token); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 942 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 943 | } |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 944 | |
| 945 | /** |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 946 | * 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] | 947 | * |
| 948 | * <p>May be used to perform an action on all score caches without potentially strange behavior |
| 949 | * if a new scorer is registered during that action's execution. |
| 950 | */ |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 951 | private Collection<RemoteCallbackList<INetworkScoreCache>> getScoreCacheLists() { |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 952 | synchronized (mScoreCaches) { |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 953 | return new ArrayList<>(mScoreCaches.values()); |
| 954 | } |
| 955 | } |
| 956 | |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 957 | private void sendCacheUpdateCallback(BiConsumer<INetworkScoreCache, Object> consumer, |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 958 | Collection<RemoteCallbackList<INetworkScoreCache>> remoteCallbackLists) { |
| 959 | for (RemoteCallbackList<INetworkScoreCache> callbackList : remoteCallbackLists) { |
| 960 | synchronized (callbackList) { // Ensure only one active broadcast per RemoteCallbackList |
| 961 | final int count = callbackList.beginBroadcast(); |
| 962 | try { |
| 963 | for (int i = 0; i < count; i++) { |
Jeremy Joslin | ba24273 | 2017-01-24 17:16:42 -0800 | [diff] [blame] | 964 | consumer.accept(callbackList.getBroadcastItem(i), |
Jeremy Joslin | 7890e19 | 2017-02-06 11:14:34 -0800 | [diff] [blame] | 965 | callbackList.getBroadcastCookie(i)); |
Amin Shaikh | 972e236 | 2016-12-07 14:08:09 -0800 | [diff] [blame] | 966 | } |
| 967 | } finally { |
| 968 | callbackList.finishBroadcast(); |
| 969 | } |
| 970 | } |
Jeff Davidson | 14f1ec0 | 2014-04-29 11:58:26 -0700 | [diff] [blame] | 971 | } |
| 972 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 973 | |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 974 | private void throwIfCalledOnMainThread() { |
| 975 | if (Thread.currentThread() == mContext.getMainLooper().getThread()) { |
| 976 | throw new RuntimeException("Cannot invoke on the main thread"); |
| 977 | } |
| 978 | } |
| 979 | |
| 980 | @Nullable |
| 981 | private INetworkRecommendationProvider getRecommendationProvider() { |
| 982 | synchronized (mServiceConnectionLock) { |
| 983 | if (mServiceConnection != null) { |
| 984 | return mServiceConnection.getRecommendationProvider(); |
| 985 | } |
| 986 | } |
| 987 | return null; |
| 988 | } |
| 989 | |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 990 | @VisibleForTesting |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 991 | public void refreshRecommendationRequestTimeoutMs() { |
| 992 | final ContentResolver cr = mContext.getContentResolver(); |
| 993 | long timeoutMs = Settings.Global.getLong(cr, |
| 994 | Global.NETWORK_RECOMMENDATION_REQUEST_TIMEOUT_MS, -1L /*default*/); |
| 995 | if (timeoutMs < 0) { |
| 996 | timeoutMs = TimedRemoteCaller.DEFAULT_CALL_TIMEOUT_MILLIS; |
| 997 | } |
| 998 | if (DBG) Log.d(TAG, "Updating the recommendation request timeout to " + timeoutMs + " ms"); |
| 999 | mRecommendationRequestTimeoutMs = timeoutMs; |
Jeremy Joslin | 3452b69 | 2017-01-17 15:48:13 -0800 | [diff] [blame] | 1000 | mReqRecommendationCallerRef.set(new RequestRecommendationCaller(timeoutMs)); |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 1001 | } |
| 1002 | |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1003 | private static class ScoringServiceConnection implements ServiceConnection { |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 1004 | private final NetworkScorerAppData mAppData; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 1005 | private volatile boolean mBound = false; |
| 1006 | private volatile boolean mConnected = false; |
| 1007 | private volatile INetworkRecommendationProvider mRecommendationProvider; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1008 | |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 1009 | ScoringServiceConnection(NetworkScorerAppData appData) { |
| 1010 | mAppData = appData; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1011 | } |
| 1012 | |
| 1013 | void connect(Context context) { |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1014 | if (!mBound) { |
Joe LaPenna | 25e7ec2 | 2016-12-27 14:50:14 -0800 | [diff] [blame] | 1015 | Intent service = new Intent(NetworkScoreManager.ACTION_RECOMMEND_NETWORKS); |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 1016 | service.setComponent(mAppData.getRecommendationServiceComponent()); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 1017 | mBound = context.bindServiceAsUser(service, this, |
| 1018 | Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE, |
| 1019 | UserHandle.SYSTEM); |
| 1020 | if (!mBound) { |
| 1021 | Log.w(TAG, "Bind call failed for " + service); |
| 1022 | } else { |
| 1023 | if (DBG) Log.d(TAG, "ScoringServiceConnection bound."); |
| 1024 | } |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1025 | } |
| 1026 | } |
| 1027 | |
| 1028 | void disconnect(Context context) { |
| 1029 | try { |
| 1030 | if (mBound) { |
| 1031 | mBound = false; |
| 1032 | context.unbindService(this); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 1033 | if (DBG) Log.d(TAG, "ScoringServiceConnection unbound."); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1034 | } |
| 1035 | } catch (RuntimeException e) { |
| 1036 | Log.e(TAG, "Unbind failed.", e); |
| 1037 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 1038 | |
| 1039 | mRecommendationProvider = null; |
| 1040 | } |
| 1041 | |
| 1042 | INetworkRecommendationProvider getRecommendationProvider() { |
| 1043 | return mRecommendationProvider; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1044 | } |
| 1045 | |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 1046 | String getPackageName() { |
| 1047 | return mAppData.getRecommendationServiceComponent().getPackageName(); |
| 1048 | } |
| 1049 | |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1050 | @Override |
| 1051 | public void onServiceConnected(ComponentName name, IBinder service) { |
| 1052 | if (DBG) Log.d(TAG, "ScoringServiceConnection: " + name.flattenToString()); |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 1053 | mConnected = true; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 1054 | mRecommendationProvider = INetworkRecommendationProvider.Stub.asInterface(service); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1055 | } |
| 1056 | |
| 1057 | @Override |
| 1058 | public void onServiceDisconnected(ComponentName name) { |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 1059 | if (DBG) { |
| 1060 | Log.d(TAG, "ScoringServiceConnection, disconnected: " + name.flattenToString()); |
| 1061 | } |
| 1062 | mConnected = false; |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 1063 | mRecommendationProvider = null; |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1064 | } |
| 1065 | |
| 1066 | public void dump(FileDescriptor fd, PrintWriter writer, String[] args) { |
Jeremy Joslin | 37e877b | 2017-02-02 11:06:14 -0800 | [diff] [blame] | 1067 | writer.println("ScoringServiceConnection: " |
| 1068 | + mAppData.getRecommendationServiceComponent() |
| 1069 | + ", bound: " + mBound |
Jeremy Joslin | 1ec8cd95 | 2016-05-26 15:28:48 -0700 | [diff] [blame] | 1070 | + ", connected: " + mConnected); |
Jeremy Joslin | dd251ef | 2016-03-14 11:17:41 -0700 | [diff] [blame] | 1071 | } |
| 1072 | } |
Jeremy Joslin | 145c343 | 2016-12-09 13:11:51 -0800 | [diff] [blame] | 1073 | |
| 1074 | /** |
| 1075 | * Executes the async requestRecommendation() call with a timeout. |
| 1076 | */ |
| 1077 | private static final class RequestRecommendationCaller |
| 1078 | extends TimedRemoteCaller<RecommendationResult> { |
| 1079 | private final IRemoteCallback mCallback; |
| 1080 | |
| 1081 | RequestRecommendationCaller(long callTimeoutMillis) { |
| 1082 | super(callTimeoutMillis); |
| 1083 | mCallback = new IRemoteCallback.Stub() { |
| 1084 | @Override |
| 1085 | public void sendResult(Bundle data) throws RemoteException { |
| 1086 | final RecommendationResult result = |
| 1087 | data.getParcelable(EXTRA_RECOMMENDATION_RESULT); |
| 1088 | final int sequence = data.getInt(EXTRA_SEQUENCE, -1); |
| 1089 | onRemoteMethodResult(result, sequence); |
| 1090 | } |
| 1091 | }; |
| 1092 | } |
| 1093 | |
| 1094 | /** |
| 1095 | * Runs the requestRecommendation() call on the given {@link INetworkRecommendationProvider} |
| 1096 | * instance. |
| 1097 | * |
| 1098 | * @param target the {@link INetworkRecommendationProvider} to request a recommendation |
| 1099 | * from |
| 1100 | * @param request the {@link RecommendationRequest} from the calling client |
| 1101 | * @return a {@link RecommendationResult} from the provider |
| 1102 | * @throws RemoteException if the call failed |
| 1103 | * @throws TimeoutException if the call took longer than the set timeout |
| 1104 | */ |
| 1105 | RecommendationResult getRecommendationResult(INetworkRecommendationProvider target, |
| 1106 | RecommendationRequest request) throws RemoteException, TimeoutException { |
| 1107 | final int sequence = onBeforeRemoteCall(); |
| 1108 | target.requestRecommendation(request, mCallback, sequence); |
| 1109 | return getResultTimed(sequence); |
| 1110 | } |
| 1111 | } |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 1112 | |
| 1113 | /** |
| 1114 | * A wrapper around {@link RemoteCallback} that guarantees |
| 1115 | * {@link RemoteCallback#sendResult(Bundle)} will be invoked at most once. |
| 1116 | */ |
| 1117 | @VisibleForTesting |
| 1118 | public static final class OneTimeCallback { |
| 1119 | private final RemoteCallback mRemoteCallback; |
| 1120 | private final AtomicBoolean mCallbackRun; |
| 1121 | |
| 1122 | public OneTimeCallback(RemoteCallback remoteCallback) { |
| 1123 | mRemoteCallback = remoteCallback; |
| 1124 | mCallbackRun = new AtomicBoolean(false); |
| 1125 | } |
| 1126 | |
| 1127 | public void sendResult(Bundle data) { |
| 1128 | if (mCallbackRun.compareAndSet(false, true)) { |
| 1129 | mRemoteCallback.sendResult(data); |
| 1130 | } |
| 1131 | } |
| 1132 | } |
| 1133 | |
| 1134 | private static void sendDefaultRecommendationResponse(RecommendationRequest request, |
| 1135 | OneTimeCallback remoteCallback) { |
| 1136 | if (DBG) { |
| 1137 | Log.d(TAG, "Returning the default network recommendation."); |
| 1138 | } |
| 1139 | |
| 1140 | final RecommendationResult result; |
Jeremy Joslin | 26a45e5 | 2017-01-18 11:55:17 -0800 | [diff] [blame] | 1141 | if (request != null && request.getDefaultWifiConfig() != null) { |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 1142 | result = RecommendationResult.createConnectRecommendation( |
Jeremy Joslin | 26a45e5 | 2017-01-18 11:55:17 -0800 | [diff] [blame] | 1143 | request.getDefaultWifiConfig()); |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 1144 | } else { |
| 1145 | result = RecommendationResult.createDoNotConnectRecommendation(); |
| 1146 | } |
| 1147 | |
| 1148 | final Bundle data = new Bundle(); |
| 1149 | data.putParcelable(EXTRA_RECOMMENDATION_RESULT, result); |
| 1150 | remoteCallback.sendResult(data); |
| 1151 | } |
| 1152 | |
| 1153 | @VisibleForTesting |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 1154 | public final class ServiceHandler extends Handler { |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 1155 | public static final int MSG_RECOMMENDATION_REQUEST_TIMEOUT = 1; |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 1156 | public static final int MSG_RECOMMENDATIONS_ENABLED_CHANGED = 2; |
| 1157 | public static final int MSG_RECOMMENDATION_REQUEST_TIMEOUT_CHANGED = 3; |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 1158 | |
| 1159 | public ServiceHandler(Looper looper) { |
| 1160 | super(looper); |
| 1161 | } |
| 1162 | |
| 1163 | @Override |
| 1164 | public void handleMessage(Message msg) { |
| 1165 | final int what = msg.what; |
| 1166 | switch (what) { |
| 1167 | case MSG_RECOMMENDATION_REQUEST_TIMEOUT: |
| 1168 | if (DBG) { |
| 1169 | Log.d(TAG, "Network recommendation request timed out."); |
| 1170 | } |
| 1171 | final Pair<RecommendationRequest, OneTimeCallback> pair = |
| 1172 | (Pair<RecommendationRequest, OneTimeCallback>) msg.obj; |
| 1173 | final RecommendationRequest request = pair.first; |
| 1174 | final OneTimeCallback remoteCallback = pair.second; |
| 1175 | sendDefaultRecommendationResponse(request, remoteCallback); |
| 1176 | break; |
| 1177 | |
Jeremy Joslin | cb594f3 | 2017-01-03 17:31:23 -0800 | [diff] [blame] | 1178 | case MSG_RECOMMENDATIONS_ENABLED_CHANGED: |
| 1179 | bindToScoringServiceIfNeeded(); |
| 1180 | break; |
| 1181 | |
| 1182 | case MSG_RECOMMENDATION_REQUEST_TIMEOUT_CHANGED: |
| 1183 | refreshRecommendationRequestTimeoutMs(); |
| 1184 | break; |
| 1185 | |
Jeremy Joslin | ce73c6f | 2016-12-29 14:49:38 -0800 | [diff] [blame] | 1186 | default: |
| 1187 | Log.w(TAG,"Unknown message: " + what); |
| 1188 | } |
| 1189 | } |
| 1190 | } |
Jeff Davidson | 6a4b220 | 2014-04-16 17:29:40 -0700 | [diff] [blame] | 1191 | } |