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.Calendar; 44 import java.util.TimeZone; 45 46 /** 47 * Built-in zen condition provider for daily scheduled time-based conditions. 48 */ 49 public class ScheduleConditionProvider extends SystemConditionProviderService { 50 static final String TAG = "ConditionProviders.SCP"; 51 static final boolean DEBUG = true || Log.isLoggable("ConditionProviders", Log.DEBUG); 52 53 public static final ComponentName COMPONENT = 54 new ComponentName("android", ScheduleConditionProvider.class.getName()); 55 private static final String NOT_SHOWN = "..."; 56 private static final String SIMPLE_NAME = ScheduleConditionProvider.class.getSimpleName(); 57 private static final String ACTION_EVALUATE = SIMPLE_NAME + ".EVALUATE"; 58 private static final int REQUEST_CODE_EVALUATE = 1; 59 private static final String EXTRA_TIME = "time"; 60 private static final String SEPARATOR = ";"; 61 private static final String SCP_SETTING = "snoozed_schedule_condition_provider"; 62 63 64 private final Context mContext = this; 65 private final ArrayMap<Uri, ScheduleCalendar> mSubscriptions = new ArrayMap<>(); 66 private ArraySet<Uri> mSnoozed = new ArraySet<>(); 67 68 private AlarmManager mAlarmManager; 69 private boolean mConnected; 70 private boolean mRegistered; 71 private long mNextAlarmTime; 72 73 public ScheduleConditionProvider() { 74 if (DEBUG) Slog.d(TAG, "new " + SIMPLE_NAME + "()"); 75 } 76 77 @Override 78 public ComponentName getComponent() { 79 return COMPONENT; 80 } 81 82 @Override 83 public boolean isValidConditionId(Uri id) { 84 return ZenModeConfig.isValidScheduleConditionId(id); 85 } 86 87 @Override 88 public void dump(PrintWriter pw, DumpFilter filter) { 89 pw.print(" "); pw.print(SIMPLE_NAME); pw.println(":"); 90 pw.print(" mConnected="); pw.println(mConnected); 91 pw.print(" mRegistered="); pw.println(mRegistered); 92 pw.println(" mSubscriptions="); 93 final long now = System.currentTimeMillis(); 94 for (Uri conditionId : mSubscriptions.keySet()) { 95 pw.print(" "); 96 pw.print(meetsSchedule(mSubscriptions.get(conditionId), now) ? "* " : " "); 97 pw.println(conditionId); 98 pw.print(" "); 99 pw.println(mSubscriptions.get(conditionId).toString()); 100 } 101 pw.println(" snoozed due to alarm: " + TextUtils.join(SEPARATOR, mSnoozed)); 102 dumpUpcomingTime(pw, "mNextAlarmTime", mNextAlarmTime, now); 103 } 104 105 @Override 106 public void onConnected() { 107 if (DEBUG) Slog.d(TAG, "onConnected"); 108 mConnected = true; 109 readSnoozed(); 110 } 111 112 @Override 113 public void onBootComplete() { 114 // noop 115 } 116 117 @Override 118 public void onDestroy() { 119 super.onDestroy(); 120 if (DEBUG) Slog.d(TAG, "onDestroy"); 121 mConnected = false; 122 } 123 124 @Override 125 public void onSubscribe(Uri conditionId) { 126 if (DEBUG) Slog.d(TAG, "onSubscribe " + conditionId); 127 if (!ZenModeConfig.isValidScheduleConditionId(conditionId)) { 128 notifyCondition(conditionId, Condition.STATE_FALSE, "badCondition"); 129 return; 130 } 131 mSubscriptions.put(conditionId, toScheduleCalendar(conditionId)); 132 evaluateSubscriptions(); 133 } 134 135 @Override 136 public void onUnsubscribe(Uri conditionId) { 137 if (DEBUG) Slog.d(TAG, "onUnsubscribe " + conditionId); 138 mSubscriptions.remove(conditionId); 139 removeSnoozed(conditionId); 140 evaluateSubscriptions(); 141 } 142 143 @Override 144 public void attachBase(Context base) { 145 attachBaseContext(base); 146 } 147 148 @Override 149 public IConditionProvider asInterface() { 150 return (IConditionProvider) onBind(null); 151 } 152 153 private void evaluateSubscriptions() { 154 if (mAlarmManager == null) { 155 mAlarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE); 156 } 157 setRegistered(!mSubscriptions.isEmpty()); 158 final long now = System.currentTimeMillis(); 159 mNextAlarmTime = 0; 160 long nextUserAlarmTime = getNextAlarm(); 161 for (Uri conditionId : mSubscriptions.keySet()) { 162 final ScheduleCalendar cal = mSubscriptions.get(conditionId); 163 if (cal != null && cal.isInSchedule(now)) { 164 if (conditionSnoozed(conditionId) || cal.shouldExitForAlarm(now)) { 165 notifyCondition(conditionId, Condition.STATE_FALSE, "alarmCanceled"); 166 addSnoozed(conditionId); 167 } else { 168 notifyCondition(conditionId, Condition.STATE_TRUE, "meetsSchedule"); 169 } 170 cal.maybeSetNextAlarm(now, nextUserAlarmTime); 171 } else { 172 notifyCondition(conditionId, Condition.STATE_FALSE, "!meetsSchedule"); 173 removeSnoozed(conditionId); 174 if (nextUserAlarmTime == 0) { 175 cal.maybeSetNextAlarm(now, nextUserAlarmTime); 176 } 177 } 178 if (cal != null) { 179 final long nextChangeTime = cal.getNextChangeTime(now); 180 if (nextChangeTime > 0 && nextChangeTime > now) { 181 if (mNextAlarmTime == 0 || nextChangeTime < mNextAlarmTime) { 182 mNextAlarmTime = nextChangeTime; 183 } 184 } 185 } 186 } 187 updateAlarm(now, mNextAlarmTime); 188 } 189 190 private void updateAlarm(long now, long time) { 191 final AlarmManager alarms = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE); 192 final PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, 193 REQUEST_CODE_EVALUATE, 194 new Intent(ACTION_EVALUATE) 195 .addFlags(Intent.FLAG_RECEIVER_FOREGROUND) 196 .putExtra(EXTRA_TIME, time), 197 PendingIntent.FLAG_UPDATE_CURRENT); 198 alarms.cancel(pendingIntent); 199 if (time > now) { 200 if (DEBUG) Slog.d(TAG, String.format("Scheduling evaluate for %s, in %s, now=%s", 201 ts(time), formatDuration(time - now), ts(now))); 202 alarms.setExact(AlarmManager.RTC_WAKEUP, time, pendingIntent); 203 } else { 204 if (DEBUG) Slog.d(TAG, "Not scheduling evaluate"); 205 } 206 } 207 208 public long getNextAlarm() { 209 final AlarmManager.AlarmClockInfo info = mAlarmManager.getNextAlarmClock( 210 ActivityManager.getCurrentUser()); 211 return info != null ? info.getTriggerTime() : 0; 212 } 213 214 private boolean meetsSchedule(ScheduleCalendar cal, long time) { 215 return cal != null && cal.isInSchedule(time); 216 } 217 218 private static ScheduleCalendar toScheduleCalendar(Uri conditionId) { 219 final ScheduleInfo schedule = ZenModeConfig.tryParseScheduleConditionId(conditionId); 220 if (schedule == null || schedule.days == null || schedule.days.length == 0) return null; 221 final ScheduleCalendar sc = new ScheduleCalendar(); 222 sc.setSchedule(schedule); 223 sc.setTimeZone(TimeZone.getDefault()); 224 return sc; 225 } 226 227 private void setRegistered(boolean registered) { 228 if (mRegistered == registered) return; 229 if (DEBUG) Slog.d(TAG, "setRegistered " + registered); 230 mRegistered = registered; 231 if (mRegistered) { 232 final IntentFilter filter = new IntentFilter(); 233 filter.addAction(Intent.ACTION_TIME_CHANGED); 234 filter.addAction(Intent.ACTION_TIMEZONE_CHANGED); 235 filter.addAction(ACTION_EVALUATE); 236 filter.addAction(AlarmManager.ACTION_NEXT_ALARM_CLOCK_CHANGED); 237 registerReceiver(mReceiver, filter); 238 } else { 239 unregisterReceiver(mReceiver); 240 } 241 } 242 243 private void notifyCondition(Uri conditionId, int state, String reason) { 244 if (DEBUG) Slog.d(TAG, "notifyCondition " + conditionId 245 + " " + Condition.stateToString(state) 246 + " reason=" + reason); 247 notifyCondition(createCondition(conditionId, state)); 248 } 249 250 private Condition createCondition(Uri id, int state) { 251 final String summary = NOT_SHOWN; 252 final String line1 = NOT_SHOWN; 253 final String line2 = NOT_SHOWN; 254 return new Condition(id, summary, line1, line2, 0, state, Condition.FLAG_RELEVANT_ALWAYS); 255 } 256 257 private boolean conditionSnoozed(Uri conditionId) { 258 synchronized (mSnoozed) { 259 return mSnoozed.contains(conditionId); 260 } 261 } 262 263 private void addSnoozed(Uri conditionId) { 264 synchronized (mSnoozed) { 265 mSnoozed.add(conditionId); 266 saveSnoozedLocked(); 267 } 268 } 269 270 private void removeSnoozed(Uri conditionId) { 271 synchronized (mSnoozed) { 272 mSnoozed.remove(conditionId); 273 saveSnoozedLocked(); 274 } 275 } 276 277 public void saveSnoozedLocked() { 278 final String setting = TextUtils.join(SEPARATOR, mSnoozed); 279 final int currentUser = ActivityManager.getCurrentUser(); 280 Settings.Secure.putStringForUser(mContext.getContentResolver(), 281 SCP_SETTING, 282 setting, 283 currentUser); 284 } 285 286 public void readSnoozed() { 287 synchronized (mSnoozed) { 288 long identity = Binder.clearCallingIdentity(); 289 try { 290 final String setting = Settings.Secure.getStringForUser( 291 mContext.getContentResolver(), 292 SCP_SETTING, 293 ActivityManager.getCurrentUser()); 294 if (setting != null) { 295 final String[] tokens = setting.split(SEPARATOR); 296 for (int i = 0; i < tokens.length; i++) { 297 String token = tokens[i]; 298 if (token != null) { 299 token = token.trim(); 300 } 301 if (TextUtils.isEmpty(token)) { 302 continue; 303 } 304 mSnoozed.add(Uri.parse(token)); 305 } 306 } 307 } finally { 308 Binder.restoreCallingIdentity(identity); 309 } 310 } 311 } 312 313 private BroadcastReceiver mReceiver = new BroadcastReceiver() { 314 @Override 315 public void onReceive(Context context, Intent intent) { 316 if (DEBUG) Slog.d(TAG, "onReceive " + intent.getAction()); 317 if (Intent.ACTION_TIMEZONE_CHANGED.equals(intent.getAction())) { 318 for (Uri conditionId : mSubscriptions.keySet()) { 319 final ScheduleCalendar cal = mSubscriptions.get(conditionId); 320 if (cal != null) { 321 cal.setTimeZone(Calendar.getInstance().getTimeZone()); 322 } 323 } 324 } 325 evaluateSubscriptions(); 326 } 327 }; 328 329 } 330
