1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.notification; 18 19 import android.app.ActivityManager; 20 import android.app.AlarmManager; 21 import android.app.PendingIntent; 22 import android.content.BroadcastReceiver; 23 import android.content.ComponentName; 24 import android.content.Context; 25 import android.content.Intent; 26 import android.content.IntentFilter; 27 import android.net.Uri; 28 import android.os.Binder; 29 import android.provider.Settings; 30 import android.service.notification.Condition; 31 import android.service.notification.IConditionProvider; 32 import android.service.notification.ScheduleCalendar; 33 import android.service.notification.ZenModeConfig; 34 import android.text.TextUtils; 35 import android.util.ArrayMap; 36 import android.util.ArraySet; 37 import android.util.Log; 38 import android.util.Slog; 39 40 import com.android.internal.annotations.GuardedBy; 41 import com.android.internal.annotations.VisibleForTesting; 42 import com.android.server.notification.NotificationManagerService.DumpFilter; 43 44 import java.io.PrintWriter; 45 import java.util.ArrayList; 46 import java.util.Calendar; 47 import java.util.List; 48 49 /** 50 * Built-in zen condition provider for daily scheduled time-based conditions. 51 */ 52 public class ScheduleConditionProvider extends SystemConditionProviderService { 53 static final String TAG = "ConditionProviders.SCP"; 54 static final boolean DEBUG = true || Log.isLoggable("ConditionProviders", Log.DEBUG); 55 56 public static final ComponentName COMPONENT = 57 new ComponentName("android", ScheduleConditionProvider.class.getName()); 58 private static final String NOT_SHOWN = "..."; 59 private static final String SIMPLE_NAME = ScheduleConditionProvider.class.getSimpleName(); 60 private static final String ACTION_EVALUATE = SIMPLE_NAME + ".EVALUATE"; 61 private static final int REQUEST_CODE_EVALUATE = 1; 62 private static final String EXTRA_TIME = "time"; 63 private static final String SEPARATOR = ";"; 64 private static final String SCP_SETTING = "snoozed_schedule_condition_provider"; 65 66 private final Context mContext = this; 67 private final ArrayMap<Uri, ScheduleCalendar> mSubscriptions = new ArrayMap<>(); 68 private ArraySet<Uri> mSnoozedForAlarm = new ArraySet<>(); 69 70 private AlarmManager mAlarmManager; 71 private boolean mConnected; 72 private boolean mRegistered; 73 private long mNextAlarmTime; 74 75 public ScheduleConditionProvider() { 76 if (DEBUG) Slog.d(TAG, "new " + SIMPLE_NAME + "()"); 77 } 78 79 @Override 80 public ComponentName getComponent() { 81 return COMPONENT; 82 } 83 84 @Override 85 public boolean isValidConditionId(Uri id) { 86 return ZenModeConfig.isValidScheduleConditionId(id); 87 } 88 89 @Override 90 public void dump(PrintWriter pw, DumpFilter filter) { 91 pw.print(" "); pw.print(SIMPLE_NAME); pw.println(":"); 92 pw.print(" mConnected="); pw.println(mConnected); 93 pw.print(" mRegistered="); pw.println(mRegistered); 94 pw.println(" mSubscriptions="); 95 final long now = System.currentTimeMillis(); 96 synchronized (mSubscriptions) { 97 for (Uri conditionId : mSubscriptions.keySet()) { 98 pw.print(" "); 99 pw.print(meetsSchedule(mSubscriptions.get(conditionId), now) ? "* " : " "); 100 pw.println(conditionId); 101 pw.print(" "); 102 pw.println(mSubscriptions.get(conditionId).toString()); 103 } 104 } 105 pw.println(" snoozed due to alarm: " + TextUtils.join(SEPARATOR, mSnoozedForAlarm)); 106 dumpUpcomingTime(pw, "mNextAlarmTime", mNextAlarmTime, now); 107 } 108 109 @Override 110 public void onConnected() { 111 if (DEBUG) Slog.d(TAG, "onConnected"); 112 mConnected = true; 113 readSnoozed(); 114 } 115 116 @Override 117 public void onBootComplete() { 118 // noop 119 } 120 121 @Override 122 public void onDestroy() { 123 super.onDestroy(); 124 if (DEBUG) Slog.d(TAG, "onDestroy"); 125 mConnected = false; 126 } 127 128 @Override 129 public void onSubscribe(Uri conditionId) { 130 if (DEBUG) Slog.d(TAG, "onSubscribe " + conditionId); 131 if (!ZenModeConfig.isValidScheduleConditionId(conditionId)) { 132 notifyCondition(createCondition(conditionId, Condition.STATE_ERROR, "invalidId")); 133 return; 134 } 135 synchronized (mSubscriptions) { 136 mSubscriptions.put(conditionId, ZenModeConfig.toScheduleCalendar(conditionId)); 137 } 138 evaluateSubscriptions(); 139 } 140 141 @Override 142 public void onUnsubscribe(Uri conditionId) { 143 if (DEBUG) Slog.d(TAG, "onUnsubscribe " + conditionId); 144 synchronized (mSubscriptions) { 145 mSubscriptions.remove(conditionId); 146 } 147 removeSnoozed(conditionId); 148 evaluateSubscriptions(); 149 } 150 151 @Override 152 public void attachBase(Context base) { 153 attachBaseContext(base); 154 } 155 156 @Override 157 public IConditionProvider asInterface() { 158 return (IConditionProvider) onBind(null); 159 } 160 161 private void evaluateSubscriptions() { 162 if (mAlarmManager == null) { 163 mAlarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE); 164 } 165 final long now = System.currentTimeMillis(); 166 mNextAlarmTime = 0; 167 long nextUserAlarmTime = getNextAlarm(); 168 List<Condition> conditionsToNotify = new ArrayList<>(); 169 synchronized (mSubscriptions) { 170 setRegistered(!mSubscriptions.isEmpty()); 171 for (Uri conditionId : mSubscriptions.keySet()) { 172 Condition condition = 173 evaluateSubscriptionLocked(conditionId, mSubscriptions.get(conditionId), 174 now, nextUserAlarmTime); 175 if (condition != null) { 176 conditionsToNotify.add(condition); 177 } 178 } 179 } 180 notifyConditions(conditionsToNotify.toArray(new Condition[conditionsToNotify.size()])); 181 updateAlarm(now, mNextAlarmTime); 182 } 183 184 @VisibleForTesting 185 @GuardedBy("mSubscriptions") 186 Condition evaluateSubscriptionLocked(Uri conditionId, ScheduleCalendar cal, 187 long now, long nextUserAlarmTime) { 188 if (DEBUG) Slog.d(TAG, String.format("evaluateSubscriptionLocked cal=%s, now=%s, " 189 + "nextUserAlarmTime=%s", cal, ts(now), ts(nextUserAlarmTime))); 190 Condition condition; 191 if (cal == null) { 192 condition = createCondition(conditionId, Condition.STATE_ERROR, "!invalidId"); 193 removeSnoozed(conditionId); 194 return condition; 195 } 196 if (cal.isInSchedule(now)) { 197 if (conditionSnoozed(conditionId)) { 198 condition = createCondition(conditionId, Condition.STATE_FALSE, "snoozed"); 199 } else if (cal.shouldExitForAlarm(now)) { 200 condition = createCondition(conditionId, Condition.STATE_FALSE, "alarmCanceled"); 201 addSnoozed(conditionId); 202 } else { 203 condition = createCondition(conditionId, Condition.STATE_TRUE, "meetsSchedule"); 204 } 205 } else { 206 condition = createCondition(conditionId, Condition.STATE_FALSE, "!meetsSchedule"); 207 removeSnoozed(conditionId); 208 } 209 cal.maybeSetNextAlarm(now, nextUserAlarmTime); 210 final long nextChangeTime = cal.getNextChangeTime(now); 211 if (nextChangeTime > 0 && nextChangeTime > now) { 212 if (mNextAlarmTime == 0 || nextChangeTime < mNextAlarmTime) { 213 mNextAlarmTime = nextChangeTime; 214 } 215 } 216 return condition; 217 } 218 219 private void updateAlarm(long now, long time) { 220 final AlarmManager alarms = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE); 221 final PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, 222 REQUEST_CODE_EVALUATE, 223 new Intent(ACTION_EVALUATE) 224 .addFlags(Intent.FLAG_RECEIVER_FOREGROUND) 225 .putExtra(EXTRA_TIME, time), 226 PendingIntent.FLAG_UPDATE_CURRENT); 227 alarms.cancel(pendingIntent); 228 if (time > now) { 229 if (DEBUG) Slog.d(TAG, String.format("Scheduling evaluate for %s, in %s, now=%s", 230 ts(time), formatDuration(time - now), ts(now))); 231 alarms.setExact(AlarmManager.RTC_WAKEUP, time, pendingIntent); 232 } else { 233 if (DEBUG) Slog.d(TAG, "Not scheduling evaluate"); 234 } 235 } 236 237 public long getNextAlarm() { 238 final AlarmManager.AlarmClockInfo info = mAlarmManager.getNextAlarmClock( 239 ActivityManager.getCurrentUser()); 240 return info != null ? info.getTriggerTime() : 0; 241 } 242 243 private boolean meetsSchedule(ScheduleCalendar cal, long time) { 244 return cal != null && cal.isInSchedule(time); 245 } 246 247 private void setRegistered(boolean registered) { 248 if (mRegistered == registered) return; 249 if (DEBUG) Slog.d(TAG, "setRegistered " + registered); 250 mRegistered = registered; 251 if (mRegistered) { 252 final IntentFilter filter = new IntentFilter(); 253 filter.addAction(Intent.ACTION_TIME_CHANGED); 254 filter.addAction(Intent.ACTION_TIMEZONE_CHANGED); 255 filter.addAction(ACTION_EVALUATE); 256 filter.addAction(AlarmManager.ACTION_NEXT_ALARM_CLOCK_CHANGED); 257 registerReceiver(mReceiver, filter); 258 } else { 259 unregisterReceiver(mReceiver); 260 } 261 } 262 263 private Condition createCondition(Uri id, int state, String reason) { 264 if (DEBUG) Slog.d(TAG, "notifyCondition " + id 265 + " " + Condition.stateToString(state) 266 + " reason=" + reason); 267 final String summary = NOT_SHOWN; 268 final String line1 = NOT_SHOWN; 269 final String line2 = NOT_SHOWN; 270 return new Condition(id, summary, line1, line2, 0, state, Condition.FLAG_RELEVANT_ALWAYS); 271 } 272 273 private boolean conditionSnoozed(Uri conditionId) { 274 synchronized (mSnoozedForAlarm) { 275 return mSnoozedForAlarm.contains(conditionId); 276 } 277 } 278 279 @VisibleForTesting 280 void addSnoozed(Uri conditionId) { 281 synchronized (mSnoozedForAlarm) { 282 mSnoozedForAlarm.add(conditionId); 283 saveSnoozedLocked(); 284 } 285 } 286 287 private void removeSnoozed(Uri conditionId) { 288 synchronized (mSnoozedForAlarm) { 289 mSnoozedForAlarm.remove(conditionId); 290 saveSnoozedLocked(); 291 } 292 } 293 294 private void saveSnoozedLocked() { 295 final String setting = TextUtils.join(SEPARATOR, mSnoozedForAlarm); 296 final int currentUser = ActivityManager.getCurrentUser(); 297 Settings.Secure.putStringForUser(mContext.getContentResolver(), 298 SCP_SETTING, 299 setting, 300 currentUser); 301 } 302 303 private void readSnoozed() { 304 synchronized (mSnoozedForAlarm) { 305 long identity = Binder.clearCallingIdentity(); 306 try { 307 final String setting = Settings.Secure.getStringForUser( 308 mContext.getContentResolver(), 309 SCP_SETTING, 310 ActivityManager.getCurrentUser()); 311 if (setting != null) { 312 final String[] tokens = setting.split(SEPARATOR); 313 for (int i = 0; i < tokens.length; i++) { 314 String token = tokens[i]; 315 if (token != null) { 316 token = token.trim(); 317 } 318 if (TextUtils.isEmpty(token)) { 319 continue; 320 } 321 mSnoozedForAlarm.add(Uri.parse(token)); 322 } 323 } 324 } finally { 325 Binder.restoreCallingIdentity(identity); 326 } 327 } 328 } 329 330 private BroadcastReceiver mReceiver = new BroadcastReceiver() { 331 @Override 332 public void onReceive(Context context, Intent intent) { 333 if (DEBUG) Slog.d(TAG, "onReceive " + intent.getAction()); 334 if (Intent.ACTION_TIMEZONE_CHANGED.equals(intent.getAction())) { 335 synchronized (mSubscriptions) { 336 for (Uri conditionId : mSubscriptions.keySet()) { 337 final ScheduleCalendar cal = mSubscriptions.get(conditionId); 338 if (cal != null) { 339 cal.setTimeZone(Calendar.getInstance().getTimeZone()); 340 } 341 } 342 } 343 } 344 evaluateSubscriptions(); 345 } 346 }; 347 348 } 349
