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.ZenModeConfig; 33 import android.service.notification.ZenModeConfig.ScheduleInfo; 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.server.notification.NotificationManagerService.DumpFilter; 41 42 import java.io.PrintWriter; 43 import java.util.ArrayList; 44 import java.util.Calendar; 45 import java.util.List; 46 import java.util.TimeZone; 47 48 /** 49 * Built-in zen condition provider for daily scheduled time-based conditions. 50 */ 51 public class ScheduleConditionProvider extends SystemConditionProviderService { 52 static final String TAG = "ConditionProviders.SCP"; 53 static final boolean DEBUG = true || Log.isLoggable("ConditionProviders", Log.DEBUG); 54 55 public static final ComponentName COMPONENT = 56 new ComponentName("android", ScheduleConditionProvider.class.getName()); 57 private static final String NOT_SHOWN = "..."; 58 private static final String SIMPLE_NAME = ScheduleConditionProvider.class.getSimpleName(); 59 private static final String ACTION_EVALUATE = SIMPLE_NAME + ".EVALUATE"; 60 private static final int REQUEST_CODE_EVALUATE = 1; 61 private static final String EXTRA_TIME = "time"; 62 private static final String SEPARATOR = ";"; 63 private static final String SCP_SETTING = "snoozed_schedule_condition_provider"; 64 65 66 private final Context mContext = this; 67 private final ArrayMap<Uri, ScheduleCalendar> mSubscriptions = new ArrayMap<>(); 68 private ArraySet<Uri> mSnoozed = 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, mSnoozed)); 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_FALSE, "badCondition")); 133 return; 134 } 135 synchronized (mSubscriptions) { 136 mSubscriptions.put(conditionId, 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 final ScheduleCalendar cal = mSubscriptions.get(conditionId); 173 if (cal != null && cal.isInSchedule(now)) { 174 if (conditionSnoozed(conditionId) || cal.shouldExitForAlarm(now)) { 175 conditionsToNotify.add(createCondition( 176 conditionId, Condition.STATE_FALSE, "alarmCanceled")); 177 addSnoozed(conditionId); 178 } else { 179 conditionsToNotify.add(createCondition( 180 conditionId, Condition.STATE_TRUE, "meetsSchedule")); 181 } 182 cal.maybeSetNextAlarm(now, nextUserAlarmTime); 183 } else { 184 conditionsToNotify.add(createCondition( 185 conditionId, Condition.STATE_FALSE, "!meetsSchedule")); 186 removeSnoozed(conditionId); 187 if (cal != null && nextUserAlarmTime == 0) { 188 cal.maybeSetNextAlarm(now, nextUserAlarmTime); 189 } 190 } 191 if (cal != null) { 192 final long nextChangeTime = cal.getNextChangeTime(now); 193 if (nextChangeTime > 0 && nextChangeTime > now) { 194 if (mNextAlarmTime == 0 || nextChangeTime < mNextAlarmTime) { 195 mNextAlarmTime = nextChangeTime; 196 } 197 } 198 } 199 } 200 } 201 notifyConditions(conditionsToNotify.toArray(new Condition[conditionsToNotify.size()])); 202 updateAlarm(now, mNextAlarmTime); 203 } 204 205 private void updateAlarm(long now, long time) { 206 final AlarmManager alarms = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE); 207 final PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, 208 REQUEST_CODE_EVALUATE, 209 new Intent(ACTION_EVALUATE) 210 .addFlags(Intent.FLAG_RECEIVER_FOREGROUND) 211 .putExtra(EXTRA_TIME, time), 212 PendingIntent.FLAG_UPDATE_CURRENT); 213 alarms.cancel(pendingIntent); 214 if (time > now) { 215 if (DEBUG) Slog.d(TAG, String.format("Scheduling evaluate for %s, in %s, now=%s", 216 ts(time), formatDuration(time - now), ts(now))); 217 alarms.setExact(AlarmManager.RTC_WAKEUP, time, pendingIntent); 218 } else { 219 if (DEBUG) Slog.d(TAG, "Not scheduling evaluate"); 220 } 221 } 222 223 public long getNextAlarm() { 224 final AlarmManager.AlarmClockInfo info = mAlarmManager.getNextAlarmClock( 225 ActivityManager.getCurrentUser()); 226 return info != null ? info.getTriggerTime() : 0; 227 } 228 229 private boolean meetsSchedule(ScheduleCalendar cal, long time) { 230 return cal != null && cal.isInSchedule(time); 231 } 232 233 private static ScheduleCalendar toScheduleCalendar(Uri conditionId) { 234 final ScheduleInfo schedule = ZenModeConfig.tryParseScheduleConditionId(conditionId); 235 if (schedule == null || schedule.days == null || schedule.days.length == 0) return null; 236 final ScheduleCalendar sc = new ScheduleCalendar(); 237 sc.setSchedule(schedule); 238 sc.setTimeZone(TimeZone.getDefault()); 239 return sc; 240 } 241 242 private void setRegistered(boolean registered) { 243 if (mRegistered == registered) return; 244 if (DEBUG) Slog.d(TAG, "setRegistered " + registered); 245 mRegistered = registered; 246 if (mRegistered) { 247 final IntentFilter filter = new IntentFilter(); 248 filter.addAction(Intent.ACTION_TIME_CHANGED); 249 filter.addAction(Intent.ACTION_TIMEZONE_CHANGED); 250 filter.addAction(ACTION_EVALUATE); 251 filter.addAction(AlarmManager.ACTION_NEXT_ALARM_CLOCK_CHANGED); 252 registerReceiver(mReceiver, filter); 253 } else { 254 unregisterReceiver(mReceiver); 255 } 256 } 257 258 private Condition createCondition(Uri id, int state, String reason) { 259 if (DEBUG) Slog.d(TAG, "notifyCondition " + id 260 + " " + Condition.stateToString(state) 261 + " reason=" + reason); 262 final String summary = NOT_SHOWN; 263 final String line1 = NOT_SHOWN; 264 final String line2 = NOT_SHOWN; 265 return new Condition(id, summary, line1, line2, 0, state, Condition.FLAG_RELEVANT_ALWAYS); 266 } 267 268 private boolean conditionSnoozed(Uri conditionId) { 269 synchronized (mSnoozed) { 270 return mSnoozed.contains(conditionId); 271 } 272 } 273 274 private void addSnoozed(Uri conditionId) { 275 synchronized (mSnoozed) { 276 mSnoozed.add(conditionId); 277 saveSnoozedLocked(); 278 } 279 } 280 281 private void removeSnoozed(Uri conditionId) { 282 synchronized (mSnoozed) { 283 mSnoozed.remove(conditionId); 284 saveSnoozedLocked(); 285 } 286 } 287 288 public void saveSnoozedLocked() { 289 final String setting = TextUtils.join(SEPARATOR, mSnoozed); 290 final int currentUser = ActivityManager.getCurrentUser(); 291 Settings.Secure.putStringForUser(mContext.getContentResolver(), 292 SCP_SETTING, 293 setting, 294 currentUser); 295 } 296 297 public void readSnoozed() { 298 synchronized (mSnoozed) { 299 long identity = Binder.clearCallingIdentity(); 300 try { 301 final String setting = Settings.Secure.getStringForUser( 302 mContext.getContentResolver(), 303 SCP_SETTING, 304 ActivityManager.getCurrentUser()); 305 if (setting != null) { 306 final String[] tokens = setting.split(SEPARATOR); 307 for (int i = 0; i < tokens.length; i++) { 308 String token = tokens[i]; 309 if (token != null) { 310 token = token.trim(); 311 } 312 if (TextUtils.isEmpty(token)) { 313 continue; 314 } 315 mSnoozed.add(Uri.parse(token)); 316 } 317 } 318 } finally { 319 Binder.restoreCallingIdentity(identity); 320 } 321 } 322 } 323 324 private BroadcastReceiver mReceiver = new BroadcastReceiver() { 325 @Override 326 public void onReceive(Context context, Intent intent) { 327 if (DEBUG) Slog.d(TAG, "onReceive " + intent.getAction()); 328 if (Intent.ACTION_TIMEZONE_CHANGED.equals(intent.getAction())) { 329 synchronized (mSubscriptions) { 330 for (Uri conditionId : mSubscriptions.keySet()) { 331 final ScheduleCalendar cal = mSubscriptions.get(conditionId); 332 if (cal != null) { 333 cal.setTimeZone(Calendar.getInstance().getTimeZone()); 334 } 335 } 336 } 337 } 338 evaluateSubscriptions(); 339 } 340 }; 341 342 } 343
