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.notification; 18 19 import android.content.ComponentName; 20 import android.content.Context; 21 import android.net.Uri; 22 import android.os.Handler; 23 import android.os.IBinder; 24 import android.os.IInterface; 25 import android.os.RemoteException; 26 import android.os.UserHandle; 27 import android.provider.Settings; 28 import android.provider.Settings.Global; 29 import android.service.notification.Condition; 30 import android.service.notification.ConditionProviderService; 31 import android.service.notification.IConditionListener; 32 import android.service.notification.IConditionProvider; 33 import android.service.notification.ZenModeConfig; 34 import android.util.ArrayMap; 35 import android.util.ArraySet; 36 import android.util.Slog; 37 38 import com.android.internal.R; 39 import com.android.server.notification.NotificationManagerService.DumpFilter; 40 41 import java.io.PrintWriter; 42 import java.util.ArrayList; 43 import java.util.Arrays; 44 import java.util.Objects; 45 46 public class ConditionProviders extends ManagedServices { 47 private static final Condition[] NO_CONDITIONS = new Condition[0]; 48 49 private final ZenModeHelper mZenModeHelper; 50 private final ArrayMap<IBinder, IConditionListener> mListeners 51 = new ArrayMap<IBinder, IConditionListener>(); 52 private final ArrayList<ConditionRecord> mRecords = new ArrayList<ConditionRecord>(); 53 private final ArraySet<String> mSystemConditionProviders; 54 private final CountdownConditionProvider mCountdown; 55 private final DowntimeConditionProvider mDowntime; 56 private final NextAlarmConditionProvider mNextAlarm; 57 private final NextAlarmTracker mNextAlarmTracker; 58 59 private Condition mExitCondition; 60 private ComponentName mExitConditionComponent; 61 62 public ConditionProviders(Context context, Handler handler, 63 UserProfiles userProfiles, ZenModeHelper zenModeHelper) { 64 super(context, handler, new Object(), userProfiles); 65 mZenModeHelper = zenModeHelper; 66 mZenModeHelper.addCallback(new ZenModeHelperCallback()); 67 mSystemConditionProviders = safeSet(PropConfig.getStringArray(mContext, 68 "system.condition.providers", 69 R.array.config_system_condition_providers)); 70 final boolean countdown = mSystemConditionProviders.contains(ZenModeConfig.COUNTDOWN_PATH); 71 final boolean downtime = mSystemConditionProviders.contains(ZenModeConfig.DOWNTIME_PATH); 72 final boolean nextAlarm = mSystemConditionProviders.contains(ZenModeConfig.NEXT_ALARM_PATH); 73 mNextAlarmTracker = (downtime || nextAlarm) ? new NextAlarmTracker(mContext) : null; 74 mCountdown = countdown ? new CountdownConditionProvider() : null; 75 mDowntime = downtime ? new DowntimeConditionProvider(this, mNextAlarmTracker, 76 mZenModeHelper) : null; 77 mNextAlarm = nextAlarm ? new NextAlarmConditionProvider(mNextAlarmTracker) : null; 78 loadZenConfig(); 79 } 80 81 public boolean isSystemConditionProviderEnabled(String path) { 82 return mSystemConditionProviders.contains(path); 83 } 84 85 @Override 86 protected Config getConfig() { 87 Config c = new Config(); 88 c.caption = "condition provider"; 89 c.serviceInterface = ConditionProviderService.SERVICE_INTERFACE; 90 c.secureSettingName = Settings.Secure.ENABLED_CONDITION_PROVIDERS; 91 c.bindPermission = android.Manifest.permission.BIND_CONDITION_PROVIDER_SERVICE; 92 c.settingsAction = Settings.ACTION_CONDITION_PROVIDER_SETTINGS; 93 c.clientLabel = R.string.condition_provider_service_binding_label; 94 return c; 95 } 96 97 @Override 98 public void dump(PrintWriter pw, DumpFilter filter) { 99 super.dump(pw, filter); 100 synchronized(mMutex) { 101 if (filter == null) { 102 pw.print(" mListeners("); pw.print(mListeners.size()); pw.println("):"); 103 for (int i = 0; i < mListeners.size(); i++) { 104 pw.print(" "); pw.println(mListeners.keyAt(i)); 105 } 106 } 107 pw.print(" mRecords("); pw.print(mRecords.size()); pw.println("):"); 108 for (int i = 0; i < mRecords.size(); i++) { 109 final ConditionRecord r = mRecords.get(i); 110 if (filter != null && !filter.matches(r.component)) continue; 111 pw.print(" "); pw.println(r); 112 final String countdownDesc = CountdownConditionProvider.tryParseDescription(r.id); 113 if (countdownDesc != null) { 114 pw.print(" ("); pw.print(countdownDesc); pw.println(")"); 115 } 116 } 117 } 118 pw.print(" mSystemConditionProviders: "); pw.println(mSystemConditionProviders); 119 if (mCountdown != null) { 120 mCountdown.dump(pw, filter); 121 } 122 if (mDowntime != null) { 123 mDowntime.dump(pw, filter); 124 } 125 if (mNextAlarm != null) { 126 mNextAlarm.dump(pw, filter); 127 } 128 if (mNextAlarmTracker != null) { 129 mNextAlarmTracker.dump(pw, filter); 130 } 131 } 132 133 @Override 134 protected IInterface asInterface(IBinder binder) { 135 return IConditionProvider.Stub.asInterface(binder); 136 } 137 138 @Override 139 public void onBootPhaseAppsCanStart() { 140 super.onBootPhaseAppsCanStart(); 141 if (mNextAlarmTracker != null) { 142 mNextAlarmTracker.init(); 143 } 144 if (mCountdown != null) { 145 mCountdown.attachBase(mContext); 146 registerService(mCountdown.asInterface(), CountdownConditionProvider.COMPONENT, 147 UserHandle.USER_OWNER); 148 } 149 if (mDowntime != null) { 150 mDowntime.attachBase(mContext); 151 registerService(mDowntime.asInterface(), DowntimeConditionProvider.COMPONENT, 152 UserHandle.USER_OWNER); 153 } 154 if (mNextAlarm != null) { 155 mNextAlarm.attachBase(mContext); 156 registerService(mNextAlarm.asInterface(), NextAlarmConditionProvider.COMPONENT, 157 UserHandle.USER_OWNER); 158 } 159 } 160 161 @Override 162 public void onUserSwitched() { 163 super.onUserSwitched(); 164 if (mNextAlarmTracker != null) { 165 mNextAlarmTracker.onUserSwitched(); 166 } 167 } 168 169 @Override 170 protected void onServiceAdded(ManagedServiceInfo info) { 171 final IConditionProvider provider = provider(info); 172 try { 173 provider.onConnected(); 174 } catch (RemoteException e) { 175 // we tried 176 } 177 synchronized (mMutex) { 178 if (info.component.equals(mExitConditionComponent)) { 179 // ensure record exists, we'll wire it up and subscribe below 180 final ConditionRecord manualRecord = 181 getRecordLocked(mExitCondition.id, mExitConditionComponent); 182 manualRecord.isManual = true; 183 } 184 final int N = mRecords.size(); 185 for(int i = 0; i < N; i++) { 186 final ConditionRecord r = mRecords.get(i); 187 if (!r.component.equals(info.component)) continue; 188 r.info = info; 189 // if automatic or manual, auto-subscribe 190 if (r.isAutomatic || r.isManual) { 191 subscribeLocked(r); 192 } 193 } 194 } 195 } 196 197 @Override 198 protected void onServiceRemovedLocked(ManagedServiceInfo removed) { 199 if (removed == null) return; 200 for (int i = mRecords.size() - 1; i >= 0; i--) { 201 final ConditionRecord r = mRecords.get(i); 202 if (!r.component.equals(removed.component)) continue; 203 if (r.isManual) { 204 // removing the current manual condition, exit zen 205 onManualConditionClearing(); 206 mZenModeHelper.setZenMode(Global.ZEN_MODE_OFF, "manualServiceRemoved"); 207 } 208 if (r.isAutomatic) { 209 // removing an automatic condition, exit zen 210 mZenModeHelper.setZenMode(Global.ZEN_MODE_OFF, "automaticServiceRemoved"); 211 } 212 mRecords.remove(i); 213 } 214 } 215 216 public ManagedServiceInfo checkServiceToken(IConditionProvider provider) { 217 synchronized(mMutex) { 218 return checkServiceTokenLocked(provider); 219 } 220 } 221 222 public void requestZenModeConditions(IConditionListener callback, int relevance) { 223 synchronized(mMutex) { 224 if (DEBUG) Slog.d(TAG, "requestZenModeConditions callback=" + callback 225 + " relevance=" + Condition.relevanceToString(relevance)); 226 if (callback == null) return; 227 relevance = relevance & (Condition.FLAG_RELEVANT_NOW | Condition.FLAG_RELEVANT_ALWAYS); 228 if (relevance != 0) { 229 mListeners.put(callback.asBinder(), callback); 230 requestConditionsLocked(relevance); 231 } else { 232 mListeners.remove(callback.asBinder()); 233 if (mListeners.isEmpty()) { 234 requestConditionsLocked(0); 235 } 236 } 237 } 238 } 239 240 private Condition[] validateConditions(String pkg, Condition[] conditions) { 241 if (conditions == null || conditions.length == 0) return null; 242 final int N = conditions.length; 243 final ArrayMap<Uri, Condition> valid = new ArrayMap<Uri, Condition>(N); 244 for (int i = 0; i < N; i++) { 245 final Uri id = conditions[i].id; 246 if (!Condition.isValidId(id, pkg)) { 247 Slog.w(TAG, "Ignoring condition from " + pkg + " for invalid id: " + id); 248 continue; 249 } 250 if (valid.containsKey(id)) { 251 Slog.w(TAG, "Ignoring condition from " + pkg + " for duplicate id: " + id); 252 continue; 253 } 254 valid.put(id, conditions[i]); 255 } 256 if (valid.size() == 0) return null; 257 if (valid.size() == N) return conditions; 258 final Condition[] rt = new Condition[valid.size()]; 259 for (int i = 0; i < rt.length; i++) { 260 rt[i] = valid.valueAt(i); 261 } 262 return rt; 263 } 264 265 private ConditionRecord getRecordLocked(Uri id, ComponentName component) { 266 final int N = mRecords.size(); 267 for (int i = 0; i < N; i++) { 268 final ConditionRecord r = mRecords.get(i); 269 if (r.id.equals(id) && r.component.equals(component)) { 270 return r; 271 } 272 } 273 final ConditionRecord r = new ConditionRecord(id, component); 274 mRecords.add(r); 275 return r; 276 } 277 278 public void notifyConditions(String pkg, ManagedServiceInfo info, Condition[] conditions) { 279 synchronized(mMutex) { 280 if (DEBUG) Slog.d(TAG, "notifyConditions pkg=" + pkg + " info=" + info + " conditions=" 281 + (conditions == null ? null : Arrays.asList(conditions))); 282 conditions = validateConditions(pkg, conditions); 283 if (conditions == null || conditions.length == 0) return; 284 final int N = conditions.length; 285 for (IConditionListener listener : mListeners.values()) { 286 try { 287 listener.onConditionsReceived(conditions); 288 } catch (RemoteException e) { 289 Slog.w(TAG, "Error sending conditions to listener " + listener, e); 290 } 291 } 292 for (int i = 0; i < N; i++) { 293 final Condition c = conditions[i]; 294 final ConditionRecord r = getRecordLocked(c.id, info.component); 295 final Condition oldCondition = r.condition; 296 final boolean conditionUpdate = oldCondition != null && !oldCondition.equals(c); 297 r.info = info; 298 r.condition = c; 299 // if manual, exit zen if false (or failed), update if true (and changed) 300 if (r.isManual) { 301 if (c.state == Condition.STATE_FALSE || c.state == Condition.STATE_ERROR) { 302 final boolean failed = c.state == Condition.STATE_ERROR; 303 if (failed) { 304 Slog.w(TAG, "Exit zen: manual condition failed: " + c); 305 } else if (DEBUG) { 306 Slog.d(TAG, "Exit zen: manual condition false: " + c); 307 } 308 onManualConditionClearing(); 309 mZenModeHelper.setZenMode(Settings.Global.ZEN_MODE_OFF, 310 "manualConditionExit"); 311 unsubscribeLocked(r); 312 r.isManual = false; 313 } else if (c.state == Condition.STATE_TRUE && conditionUpdate) { 314 if (DEBUG) Slog.d(TAG, "Current condition updated, still true. old=" 315 + oldCondition + " new=" + c); 316 setZenModeCondition(c, "conditionUpdate"); 317 } 318 } 319 // if automatic, exit zen if false (or failed), enter zen if true 320 if (r.isAutomatic) { 321 if (c.state == Condition.STATE_FALSE || c.state == Condition.STATE_ERROR) { 322 final boolean failed = c.state == Condition.STATE_ERROR; 323 if (failed) { 324 Slog.w(TAG, "Exit zen: automatic condition failed: " + c); 325 } else if (DEBUG) { 326 Slog.d(TAG, "Exit zen: automatic condition false: " + c); 327 } 328 mZenModeHelper.setZenMode(Settings.Global.ZEN_MODE_OFF, 329 "automaticConditionExit"); 330 } else if (c.state == Condition.STATE_TRUE) { 331 Slog.d(TAG, "Enter zen: automatic condition true: " + c); 332 mZenModeHelper.setZenMode(Settings.Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS, 333 "automaticConditionEnter"); 334 } 335 } 336 } 337 } 338 } 339 340 private void ensureRecordExists(Condition condition, IConditionProvider provider, 341 ComponentName component) { 342 // constructed by convention, make sure the record exists... 343 final ConditionRecord r = getRecordLocked(condition.id, component); 344 if (r.info == null) { 345 // ... and is associated with the in-process service 346 r.info = checkServiceTokenLocked(provider); 347 } 348 } 349 350 public void setZenModeCondition(Condition condition, String reason) { 351 if (DEBUG) Slog.d(TAG, "setZenModeCondition " + condition + " reason=" + reason); 352 synchronized(mMutex) { 353 ComponentName conditionComponent = null; 354 if (condition != null) { 355 if (mCountdown != null && ZenModeConfig.isValidCountdownConditionId(condition.id)) { 356 ensureRecordExists(condition, mCountdown.asInterface(), 357 CountdownConditionProvider.COMPONENT); 358 } 359 if (mDowntime != null && ZenModeConfig.isValidDowntimeConditionId(condition.id)) { 360 ensureRecordExists(condition, mDowntime.asInterface(), 361 DowntimeConditionProvider.COMPONENT); 362 } 363 } 364 final int N = mRecords.size(); 365 for (int i = 0; i < N; i++) { 366 final ConditionRecord r = mRecords.get(i); 367 final boolean idEqual = condition != null && r.id.equals(condition.id); 368 if (r.isManual && !idEqual) { 369 // was previous manual condition, unsubscribe 370 unsubscribeLocked(r); 371 r.isManual = false; 372 } else if (idEqual && !r.isManual) { 373 // is new manual condition, subscribe 374 subscribeLocked(r); 375 r.isManual = true; 376 } 377 if (idEqual) { 378 conditionComponent = r.component; 379 } 380 } 381 if (!Objects.equals(mExitCondition, condition)) { 382 mExitCondition = condition; 383 mExitConditionComponent = conditionComponent; 384 ZenLog.traceExitCondition(mExitCondition, mExitConditionComponent, reason); 385 saveZenConfigLocked(); 386 } 387 } 388 } 389 390 private void subscribeLocked(ConditionRecord r) { 391 if (DEBUG) Slog.d(TAG, "subscribeLocked " + r); 392 final IConditionProvider provider = provider(r); 393 RemoteException re = null; 394 if (provider != null) { 395 try { 396 Slog.d(TAG, "Subscribing to " + r.id + " with " + provider); 397 provider.onSubscribe(r.id); 398 } catch (RemoteException e) { 399 Slog.w(TAG, "Error subscribing to " + r, e); 400 re = e; 401 } 402 } 403 ZenLog.traceSubscribe(r != null ? r.id : null, provider, re); 404 } 405 406 @SafeVarargs 407 private static <T> ArraySet<T> safeSet(T... items) { 408 final ArraySet<T> rt = new ArraySet<T>(); 409 if (items == null || items.length == 0) return rt; 410 final int N = items.length; 411 for (int i = 0; i < N; i++) { 412 final T item = items[i]; 413 if (item != null) { 414 rt.add(item); 415 } 416 } 417 return rt; 418 } 419 420 public void setAutomaticZenModeConditions(Uri[] conditionIds) { 421 setAutomaticZenModeConditions(conditionIds, true /*save*/); 422 } 423 424 private void setAutomaticZenModeConditions(Uri[] conditionIds, boolean save) { 425 if (DEBUG) Slog.d(TAG, "setAutomaticZenModeConditions " 426 + (conditionIds == null ? null : Arrays.asList(conditionIds))); 427 synchronized(mMutex) { 428 final ArraySet<Uri> newIds = safeSet(conditionIds); 429 final int N = mRecords.size(); 430 boolean changed = false; 431 for (int i = 0; i < N; i++) { 432 final ConditionRecord r = mRecords.get(i); 433 final boolean automatic = newIds.contains(r.id); 434 if (!r.isAutomatic && automatic) { 435 // subscribe to new automatic 436 subscribeLocked(r); 437 r.isAutomatic = true; 438 changed = true; 439 } else if (r.isAutomatic && !automatic) { 440 // unsubscribe from old automatic 441 unsubscribeLocked(r); 442 r.isAutomatic = false; 443 changed = true; 444 } 445 } 446 if (save && changed) { 447 saveZenConfigLocked(); 448 } 449 } 450 } 451 452 public Condition[] getAutomaticZenModeConditions() { 453 synchronized(mMutex) { 454 final int N = mRecords.size(); 455 ArrayList<Condition> rt = null; 456 for (int i = 0; i < N; i++) { 457 final ConditionRecord r = mRecords.get(i); 458 if (r.isAutomatic && r.condition != null) { 459 if (rt == null) rt = new ArrayList<Condition>(); 460 rt.add(r.condition); 461 } 462 } 463 return rt == null ? NO_CONDITIONS : rt.toArray(new Condition[rt.size()]); 464 } 465 } 466 467 private void unsubscribeLocked(ConditionRecord r) { 468 if (DEBUG) Slog.d(TAG, "unsubscribeLocked " + r); 469 final IConditionProvider provider = provider(r); 470 RemoteException re = null; 471 if (provider != null) { 472 try { 473 provider.onUnsubscribe(r.id); 474 } catch (RemoteException e) { 475 Slog.w(TAG, "Error unsubscribing to " + r, e); 476 re = e; 477 } 478 } 479 ZenLog.traceUnsubscribe(r != null ? r.id : null, provider, re); 480 } 481 482 private static IConditionProvider provider(ConditionRecord r) { 483 return r == null ? null : provider(r.info); 484 } 485 486 private static IConditionProvider provider(ManagedServiceInfo info) { 487 return info == null ? null : (IConditionProvider) info.service; 488 } 489 490 private void requestConditionsLocked(int flags) { 491 for (ManagedServiceInfo info : mServices) { 492 final IConditionProvider provider = provider(info); 493 if (provider == null) continue; 494 // clear all stored conditions from this provider that we no longer care about 495 for (int i = mRecords.size() - 1; i >= 0; i--) { 496 final ConditionRecord r = mRecords.get(i); 497 if (r.info != info) continue; 498 if (r.isManual || r.isAutomatic) continue; 499 mRecords.remove(i); 500 } 501 try { 502 provider.onRequestConditions(flags); 503 } catch (RemoteException e) { 504 Slog.w(TAG, "Error requesting conditions from " + info.component, e); 505 } 506 } 507 } 508 509 private void loadZenConfig() { 510 final ZenModeConfig config = mZenModeHelper.getConfig(); 511 if (config == null) { 512 if (DEBUG) Slog.d(TAG, "loadZenConfig: no config"); 513 return; 514 } 515 synchronized (mMutex) { 516 final boolean changingExit = !Objects.equals(mExitCondition, config.exitCondition); 517 mExitCondition = config.exitCondition; 518 mExitConditionComponent = config.exitConditionComponent; 519 if (changingExit) { 520 ZenLog.traceExitCondition(mExitCondition, mExitConditionComponent, "config"); 521 } 522 if (mDowntime != null) { 523 mDowntime.setConfig(config); 524 } 525 if (config.conditionComponents == null || config.conditionIds == null 526 || config.conditionComponents.length != config.conditionIds.length) { 527 if (DEBUG) Slog.d(TAG, "loadZenConfig: no conditions"); 528 setAutomaticZenModeConditions(null, false /*save*/); 529 return; 530 } 531 final ArraySet<Uri> newIds = new ArraySet<Uri>(); 532 final int N = config.conditionComponents.length; 533 for (int i = 0; i < N; i++) { 534 final ComponentName component = config.conditionComponents[i]; 535 final Uri id = config.conditionIds[i]; 536 if (component != null && id != null) { 537 getRecordLocked(id, component); // ensure record exists 538 newIds.add(id); 539 } 540 } 541 if (DEBUG) Slog.d(TAG, "loadZenConfig: N=" + N); 542 setAutomaticZenModeConditions(newIds.toArray(new Uri[newIds.size()]), false /*save*/); 543 } 544 } 545 546 private void saveZenConfigLocked() { 547 ZenModeConfig config = mZenModeHelper.getConfig(); 548 if (config == null) return; 549 config = config.copy(); 550 final ArrayList<ConditionRecord> automatic = new ArrayList<ConditionRecord>(); 551 final int automaticN = mRecords.size(); 552 for (int i = 0; i < automaticN; i++) { 553 final ConditionRecord r = mRecords.get(i); 554 if (r.isAutomatic) { 555 automatic.add(r); 556 } 557 } 558 if (automatic.isEmpty()) { 559 config.conditionComponents = null; 560 config.conditionIds = null; 561 } else { 562 final int N = automatic.size(); 563 config.conditionComponents = new ComponentName[N]; 564 config.conditionIds = new Uri[N]; 565 for (int i = 0; i < N; i++) { 566 final ConditionRecord r = automatic.get(i); 567 config.conditionComponents[i] = r.component; 568 config.conditionIds[i] = r.id; 569 } 570 } 571 config.exitCondition = mExitCondition; 572 config.exitConditionComponent = mExitConditionComponent; 573 if (DEBUG) Slog.d(TAG, "Setting zen config to: " + config); 574 mZenModeHelper.setConfig(config); 575 } 576 577 private void onManualConditionClearing() { 578 if (mDowntime != null) { 579 mDowntime.onManualConditionClearing(); 580 } 581 } 582 583 private class ZenModeHelperCallback extends ZenModeHelper.Callback { 584 @Override 585 void onConfigChanged() { 586 loadZenConfig(); 587 } 588 589 @Override 590 void onZenModeChanged() { 591 final int mode = mZenModeHelper.getZenMode(); 592 if (mode == Global.ZEN_MODE_OFF) { 593 // ensure any manual condition is cleared 594 setZenModeCondition(null, "zenOff"); 595 } 596 } 597 } 598 599 private static class ConditionRecord { 600 public final Uri id; 601 public final ComponentName component; 602 public Condition condition; 603 public ManagedServiceInfo info; 604 public boolean isAutomatic; 605 public boolean isManual; 606 607 private ConditionRecord(Uri id, ComponentName component) { 608 this.id = id; 609 this.component = component; 610 } 611 612 @Override 613 public String toString() { 614 final StringBuilder sb = new StringBuilder("ConditionRecord[id=") 615 .append(id).append(",component=").append(component); 616 if (isAutomatic) sb.append(",automatic"); 617 if (isManual) sb.append(",manual"); 618 return sb.append(']').toString(); 619 } 620 } 621 } 622
