ConditionProviders.java revision 6b0623a1129a7e1bc4949b7dca4fa133ff322c4a
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 17package com.android.server.notification; 18 19import android.content.ComponentName; 20import android.content.Context; 21import android.net.Uri; 22import android.os.Handler; 23import android.os.IBinder; 24import android.os.IInterface; 25import android.os.RemoteException; 26import android.os.UserHandle; 27import android.provider.Settings; 28import android.provider.Settings.Global; 29import android.service.notification.Condition; 30import android.service.notification.ConditionProviderService; 31import android.service.notification.IConditionListener; 32import android.service.notification.IConditionProvider; 33import android.service.notification.ZenModeConfig; 34import android.util.ArrayMap; 35import android.util.ArraySet; 36import android.util.Slog; 37 38import com.android.internal.R; 39import com.android.server.notification.NotificationManagerService.DumpFilter; 40 41import java.io.PrintWriter; 42import java.util.ArrayList; 43import java.util.Arrays; 44import java.util.Objects; 45 46public 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 CountdownConditionProvider mCountdown = new CountdownConditionProvider(); 54 private final NextAlarmTracker mNextAlarmTracker; 55 private final DowntimeConditionProvider mDowntime = new DowntimeConditionProvider(); 56 private final NextAlarmConditionProvider mNextAlarm = new NextAlarmConditionProvider(); 57 58 private Condition mExitCondition; 59 private ComponentName mExitConditionComponent; 60 61 public ConditionProviders(Context context, Handler handler, 62 UserProfiles userProfiles, ZenModeHelper zenModeHelper) { 63 super(context, handler, new Object(), userProfiles); 64 mZenModeHelper = zenModeHelper; 65 mZenModeHelper.addCallback(new ZenModeHelperCallback()); 66 loadZenConfig(); 67 mNextAlarmTracker = new NextAlarmTracker(context); 68 } 69 70 @Override 71 protected Config getConfig() { 72 Config c = new Config(); 73 c.caption = "condition provider"; 74 c.serviceInterface = ConditionProviderService.SERVICE_INTERFACE; 75 c.secureSettingName = Settings.Secure.ENABLED_CONDITION_PROVIDERS; 76 c.bindPermission = android.Manifest.permission.BIND_CONDITION_PROVIDER_SERVICE; 77 c.settingsAction = Settings.ACTION_CONDITION_PROVIDER_SETTINGS; 78 c.clientLabel = R.string.condition_provider_service_binding_label; 79 return c; 80 } 81 82 @Override 83 public void dump(PrintWriter pw, DumpFilter filter) { 84 super.dump(pw, filter); 85 synchronized(mMutex) { 86 if (filter == null) { 87 pw.print(" mListeners("); pw.print(mListeners.size()); pw.println("):"); 88 for (int i = 0; i < mListeners.size(); i++) { 89 pw.print(" "); pw.println(mListeners.keyAt(i)); 90 } 91 } 92 pw.print(" mRecords("); pw.print(mRecords.size()); pw.println("):"); 93 for (int i = 0; i < mRecords.size(); i++) { 94 final ConditionRecord r = mRecords.get(i); 95 if (filter != null && !filter.matches(r.component)) continue; 96 pw.print(" "); pw.println(r); 97 final String countdownDesc = CountdownConditionProvider.tryParseDescription(r.id); 98 if (countdownDesc != null) { 99 pw.print(" ("); pw.print(countdownDesc); pw.println(")"); 100 } 101 } 102 } 103 mCountdown.dump(pw, filter); 104 mDowntime.dump(pw, filter); 105 mNextAlarm.dump(pw, filter); 106 mNextAlarmTracker.dump(pw, filter); 107 } 108 109 @Override 110 protected IInterface asInterface(IBinder binder) { 111 return IConditionProvider.Stub.asInterface(binder); 112 } 113 114 @Override 115 public void onBootPhaseAppsCanStart() { 116 super.onBootPhaseAppsCanStart(); 117 mNextAlarmTracker.init(); 118 mCountdown.attachBase(mContext); 119 registerService(mCountdown.asInterface(), CountdownConditionProvider.COMPONENT, 120 UserHandle.USER_OWNER); 121 mDowntime.attachBase(mContext); 122 registerService(mDowntime.asInterface(), DowntimeConditionProvider.COMPONENT, 123 UserHandle.USER_OWNER); 124 mDowntime.setCallback(new DowntimeCallback()); 125 mNextAlarm.attachBase(mContext); 126 registerService(mNextAlarm.asInterface(), NextAlarmConditionProvider.COMPONENT, 127 UserHandle.USER_OWNER); 128 mNextAlarm.setCallback(new NextAlarmCallback()); 129 } 130 131 @Override 132 public void onUserSwitched() { 133 super.onUserSwitched(); 134 mNextAlarmTracker.onUserSwitched(); 135 } 136 137 @Override 138 protected void onServiceAdded(ManagedServiceInfo info) { 139 Slog.d(TAG, "onServiceAdded " + info); 140 final IConditionProvider provider = provider(info); 141 try { 142 provider.onConnected(); 143 } catch (RemoteException e) { 144 // we tried 145 } 146 synchronized (mMutex) { 147 if (info.component.equals(mExitConditionComponent)) { 148 // ensure record exists, we'll wire it up and subscribe below 149 final ConditionRecord manualRecord = 150 getRecordLocked(mExitCondition.id, mExitConditionComponent); 151 manualRecord.isManual = true; 152 } 153 final int N = mRecords.size(); 154 for(int i = 0; i < N; i++) { 155 final ConditionRecord r = mRecords.get(i); 156 if (!r.component.equals(info.component)) continue; 157 r.info = info; 158 // if automatic or manual, auto-subscribe 159 if (r.isAutomatic || r.isManual) { 160 subscribeLocked(r); 161 } 162 } 163 } 164 } 165 166 @Override 167 protected void onServiceRemovedLocked(ManagedServiceInfo removed) { 168 if (removed == null) return; 169 for (int i = mRecords.size() - 1; i >= 0; i--) { 170 final ConditionRecord r = mRecords.get(i); 171 if (!r.component.equals(removed.component)) continue; 172 if (r.isManual) { 173 // removing the current manual condition, exit zen 174 mZenModeHelper.setZenMode(Global.ZEN_MODE_OFF, "manualServiceRemoved"); 175 } 176 if (r.isAutomatic) { 177 // removing an automatic condition, exit zen 178 mZenModeHelper.setZenMode(Global.ZEN_MODE_OFF, "automaticServiceRemoved"); 179 } 180 mRecords.remove(i); 181 } 182 } 183 184 public ManagedServiceInfo checkServiceToken(IConditionProvider provider) { 185 synchronized(mMutex) { 186 return checkServiceTokenLocked(provider); 187 } 188 } 189 190 public void requestZenModeConditions(IConditionListener callback, int relevance) { 191 synchronized(mMutex) { 192 if (DEBUG) Slog.d(TAG, "requestZenModeConditions callback=" + callback 193 + " relevance=" + Condition.relevanceToString(relevance)); 194 if (callback == null) return; 195 relevance = relevance & (Condition.FLAG_RELEVANT_NOW | Condition.FLAG_RELEVANT_ALWAYS); 196 if (relevance != 0) { 197 mListeners.put(callback.asBinder(), callback); 198 requestConditionsLocked(relevance); 199 } else { 200 mListeners.remove(callback.asBinder()); 201 if (mListeners.isEmpty()) { 202 requestConditionsLocked(0); 203 } 204 } 205 } 206 } 207 208 private Condition[] validateConditions(String pkg, Condition[] conditions) { 209 if (conditions == null || conditions.length == 0) return null; 210 final int N = conditions.length; 211 final ArrayMap<Uri, Condition> valid = new ArrayMap<Uri, Condition>(N); 212 for (int i = 0; i < N; i++) { 213 final Uri id = conditions[i].id; 214 if (!Condition.isValidId(id, pkg)) { 215 Slog.w(TAG, "Ignoring condition from " + pkg + " for invalid id: " + id); 216 continue; 217 } 218 if (valid.containsKey(id)) { 219 Slog.w(TAG, "Ignoring condition from " + pkg + " for duplicate id: " + id); 220 continue; 221 } 222 valid.put(id, conditions[i]); 223 } 224 if (valid.size() == 0) return null; 225 if (valid.size() == N) return conditions; 226 final Condition[] rt = new Condition[valid.size()]; 227 for (int i = 0; i < rt.length; i++) { 228 rt[i] = valid.valueAt(i); 229 } 230 return rt; 231 } 232 233 private ConditionRecord getRecordLocked(Uri id, ComponentName component) { 234 final int N = mRecords.size(); 235 for (int i = 0; i < N; i++) { 236 final ConditionRecord r = mRecords.get(i); 237 if (r.id.equals(id) && r.component.equals(component)) { 238 return r; 239 } 240 } 241 final ConditionRecord r = new ConditionRecord(id, component); 242 mRecords.add(r); 243 return r; 244 } 245 246 public void notifyConditions(String pkg, ManagedServiceInfo info, Condition[] conditions) { 247 synchronized(mMutex) { 248 if (DEBUG) Slog.d(TAG, "notifyConditions pkg=" + pkg + " info=" + info + " conditions=" 249 + (conditions == null ? null : Arrays.asList(conditions))); 250 conditions = validateConditions(pkg, conditions); 251 if (conditions == null || conditions.length == 0) return; 252 final int N = conditions.length; 253 for (IConditionListener listener : mListeners.values()) { 254 try { 255 listener.onConditionsReceived(conditions); 256 } catch (RemoteException e) { 257 Slog.w(TAG, "Error sending conditions to listener " + listener, e); 258 } 259 } 260 for (int i = 0; i < N; i++) { 261 final Condition c = conditions[i]; 262 final ConditionRecord r = getRecordLocked(c.id, info.component); 263 r.info = info; 264 r.condition = c; 265 // if manual, exit zen if false (or failed) 266 if (r.isManual) { 267 if (c.state == Condition.STATE_FALSE || c.state == Condition.STATE_ERROR) { 268 final boolean failed = c.state == Condition.STATE_ERROR; 269 if (failed) { 270 Slog.w(TAG, "Exit zen: manual condition failed: " + c); 271 } else if (DEBUG) { 272 Slog.d(TAG, "Exit zen: manual condition false: " + c); 273 } 274 mZenModeHelper.setZenMode(Settings.Global.ZEN_MODE_OFF, 275 "manualConditionExit"); 276 unsubscribeLocked(r); 277 r.isManual = false; 278 } 279 } 280 // if automatic, exit zen if false (or failed), enter zen if true 281 if (r.isAutomatic) { 282 if (c.state == Condition.STATE_FALSE || c.state == Condition.STATE_ERROR) { 283 final boolean failed = c.state == Condition.STATE_ERROR; 284 if (failed) { 285 Slog.w(TAG, "Exit zen: automatic condition failed: " + c); 286 } else if (DEBUG) { 287 Slog.d(TAG, "Exit zen: automatic condition false: " + c); 288 } 289 mZenModeHelper.setZenMode(Settings.Global.ZEN_MODE_OFF, 290 "automaticConditionExit"); 291 } else if (c.state == Condition.STATE_TRUE) { 292 Slog.d(TAG, "Enter zen: automatic condition true: " + c); 293 mZenModeHelper.setZenMode(Settings.Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS, 294 "automaticConditionEnter"); 295 } 296 } 297 } 298 } 299 } 300 301 public void setZenModeCondition(Condition condition, String reason) { 302 if (DEBUG) Slog.d(TAG, "setZenModeCondition " + condition); 303 synchronized(mMutex) { 304 ComponentName conditionComponent = null; 305 if (condition != null) { 306 if (ZenModeConfig.isValidCountdownConditionId(condition.id)) { 307 // constructed by the client, make sure the record exists... 308 final ConditionRecord r = getRecordLocked(condition.id, 309 CountdownConditionProvider.COMPONENT); 310 if (r.info == null) { 311 // ... and is associated with the in-process service 312 r.info = checkServiceTokenLocked(mCountdown.asInterface()); 313 } 314 } 315 if (ZenModeConfig.isValidDowntimeConditionId(condition.id)) { 316 // constructed by the client, make sure the record exists... 317 final ConditionRecord r = getRecordLocked(condition.id, 318 DowntimeConditionProvider.COMPONENT); 319 if (r.info == null) { 320 // ... and is associated with the in-process service 321 r.info = checkServiceTokenLocked(mDowntime.asInterface()); 322 } 323 } 324 } 325 final int N = mRecords.size(); 326 for (int i = 0; i < N; i++) { 327 final ConditionRecord r = mRecords.get(i); 328 final boolean idEqual = condition != null && r.id.equals(condition.id); 329 if (r.isManual && !idEqual) { 330 // was previous manual condition, unsubscribe 331 unsubscribeLocked(r); 332 r.isManual = false; 333 } else if (idEqual && !r.isManual) { 334 // is new manual condition, subscribe 335 subscribeLocked(r); 336 r.isManual = true; 337 } 338 if (idEqual) { 339 conditionComponent = r.component; 340 } 341 } 342 if (!Objects.equals(mExitCondition, condition)) { 343 mExitCondition = condition; 344 mExitConditionComponent = conditionComponent; 345 ZenLog.traceExitCondition(mExitCondition, mExitConditionComponent, reason); 346 saveZenConfigLocked(); 347 } 348 } 349 } 350 351 private void subscribeLocked(ConditionRecord r) { 352 if (DEBUG) Slog.d(TAG, "subscribeLocked " + r); 353 final IConditionProvider provider = provider(r); 354 RemoteException re = null; 355 if (provider != null) { 356 try { 357 Slog.d(TAG, "Subscribing to " + r.id + " with " + provider); 358 provider.onSubscribe(r.id); 359 } catch (RemoteException e) { 360 Slog.w(TAG, "Error subscribing to " + r, e); 361 re = e; 362 } 363 } 364 ZenLog.traceSubscribe(r != null ? r.id : null, provider, re); 365 } 366 367 private static <T> ArraySet<T> safeSet(T... items) { 368 final ArraySet<T> rt = new ArraySet<T>(); 369 if (items == null || items.length == 0) return rt; 370 final int N = items.length; 371 for (int i = 0; i < N; i++) { 372 final T item = items[i]; 373 if (item != null) { 374 rt.add(item); 375 } 376 } 377 return rt; 378 } 379 380 public void setAutomaticZenModeConditions(Uri[] conditionIds) { 381 setAutomaticZenModeConditions(conditionIds, true /*save*/); 382 } 383 384 private void setAutomaticZenModeConditions(Uri[] conditionIds, boolean save) { 385 if (DEBUG) Slog.d(TAG, "setAutomaticZenModeConditions " 386 + (conditionIds == null ? null : Arrays.asList(conditionIds))); 387 synchronized(mMutex) { 388 final ArraySet<Uri> newIds = safeSet(conditionIds); 389 final int N = mRecords.size(); 390 boolean changed = false; 391 for (int i = 0; i < N; i++) { 392 final ConditionRecord r = mRecords.get(i); 393 final boolean automatic = newIds.contains(r.id); 394 if (!r.isAutomatic && automatic) { 395 // subscribe to new automatic 396 subscribeLocked(r); 397 r.isAutomatic = true; 398 changed = true; 399 } else if (r.isAutomatic && !automatic) { 400 // unsubscribe from old automatic 401 unsubscribeLocked(r); 402 r.isAutomatic = false; 403 changed = true; 404 } 405 } 406 if (save && changed) { 407 saveZenConfigLocked(); 408 } 409 } 410 } 411 412 public Condition[] getAutomaticZenModeConditions() { 413 synchronized(mMutex) { 414 final int N = mRecords.size(); 415 ArrayList<Condition> rt = null; 416 for (int i = 0; i < N; i++) { 417 final ConditionRecord r = mRecords.get(i); 418 if (r.isAutomatic && r.condition != null) { 419 if (rt == null) rt = new ArrayList<Condition>(); 420 rt.add(r.condition); 421 } 422 } 423 return rt == null ? NO_CONDITIONS : rt.toArray(new Condition[rt.size()]); 424 } 425 } 426 427 private void unsubscribeLocked(ConditionRecord r) { 428 if (DEBUG) Slog.d(TAG, "unsubscribeLocked " + r); 429 final IConditionProvider provider = provider(r); 430 RemoteException re = null; 431 if (provider != null) { 432 try { 433 provider.onUnsubscribe(r.id); 434 } catch (RemoteException e) { 435 Slog.w(TAG, "Error unsubscribing to " + r, e); 436 re = e; 437 } 438 } 439 ZenLog.traceUnsubscribe(r != null ? r.id : null, provider, re); 440 } 441 442 private static IConditionProvider provider(ConditionRecord r) { 443 return r == null ? null : provider(r.info); 444 } 445 446 private static IConditionProvider provider(ManagedServiceInfo info) { 447 return info == null ? null : (IConditionProvider) info.service; 448 } 449 450 private void requestConditionsLocked(int flags) { 451 for (ManagedServiceInfo info : mServices) { 452 final IConditionProvider provider = provider(info); 453 if (provider == null) continue; 454 // clear all stored conditions from this provider that we no longer care about 455 for (int i = mRecords.size() - 1; i >= 0; i--) { 456 final ConditionRecord r = mRecords.get(i); 457 if (r.info != info) continue; 458 if (r.isManual || r.isAutomatic) continue; 459 mRecords.remove(i); 460 } 461 try { 462 provider.onRequestConditions(flags); 463 } catch (RemoteException e) { 464 Slog.w(TAG, "Error requesting conditions from " + info.component, e); 465 } 466 } 467 } 468 469 private void loadZenConfig() { 470 final ZenModeConfig config = mZenModeHelper.getConfig(); 471 if (config == null) { 472 if (DEBUG) Slog.d(TAG, "loadZenConfig: no config"); 473 return; 474 } 475 synchronized (mMutex) { 476 final boolean changingExit = !Objects.equals(mExitCondition, config.exitCondition); 477 mExitCondition = config.exitCondition; 478 mExitConditionComponent = config.exitConditionComponent; 479 if (changingExit) { 480 ZenLog.traceExitCondition(mExitCondition, mExitConditionComponent, "config"); 481 } 482 mDowntime.setConfig(config); 483 if (config.conditionComponents == null || config.conditionIds == null 484 || config.conditionComponents.length != config.conditionIds.length) { 485 if (DEBUG) Slog.d(TAG, "loadZenConfig: no conditions"); 486 setAutomaticZenModeConditions(null, false /*save*/); 487 return; 488 } 489 final ArraySet<Uri> newIds = new ArraySet<Uri>(); 490 final int N = config.conditionComponents.length; 491 for (int i = 0; i < N; i++) { 492 final ComponentName component = config.conditionComponents[i]; 493 final Uri id = config.conditionIds[i]; 494 if (component != null && id != null) { 495 getRecordLocked(id, component); // ensure record exists 496 newIds.add(id); 497 } 498 } 499 if (DEBUG) Slog.d(TAG, "loadZenConfig: N=" + N); 500 setAutomaticZenModeConditions(newIds.toArray(new Uri[newIds.size()]), false /*save*/); 501 } 502 } 503 504 private void saveZenConfigLocked() { 505 ZenModeConfig config = mZenModeHelper.getConfig(); 506 if (config == null) return; 507 config = config.copy(); 508 final ArrayList<ConditionRecord> automatic = new ArrayList<ConditionRecord>(); 509 final int automaticN = mRecords.size(); 510 for (int i = 0; i < automaticN; i++) { 511 final ConditionRecord r = mRecords.get(i); 512 if (r.isAutomatic) { 513 automatic.add(r); 514 } 515 } 516 if (automatic.isEmpty()) { 517 config.conditionComponents = null; 518 config.conditionIds = null; 519 } else { 520 final int N = automatic.size(); 521 config.conditionComponents = new ComponentName[N]; 522 config.conditionIds = new Uri[N]; 523 for (int i = 0; i < N; i++) { 524 final ConditionRecord r = automatic.get(i); 525 config.conditionComponents[i] = r.component; 526 config.conditionIds[i] = r.id; 527 } 528 } 529 config.exitCondition = mExitCondition; 530 config.exitConditionComponent = mExitConditionComponent; 531 if (DEBUG) Slog.d(TAG, "Setting zen config to: " + config); 532 mZenModeHelper.setConfig(config); 533 } 534 535 private class ZenModeHelperCallback extends ZenModeHelper.Callback { 536 @Override 537 void onConfigChanged() { 538 loadZenConfig(); 539 } 540 541 @Override 542 void onZenModeChanged() { 543 final int mode = mZenModeHelper.getZenMode(); 544 if (mode == Global.ZEN_MODE_OFF) { 545 // ensure any manual condition is cleared 546 setZenModeCondition(null, "zenOff"); 547 } 548 } 549 } 550 551 private class DowntimeCallback implements DowntimeConditionProvider.Callback { 552 @Override 553 public void onDowntimeChanged(int downtimeMode) { 554 final int mode = mZenModeHelper.getZenMode(); 555 final ZenModeConfig config = mZenModeHelper.getConfig(); 556 final boolean inDowntime = downtimeMode == Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS 557 || downtimeMode == Global.ZEN_MODE_NO_INTERRUPTIONS; 558 final boolean downtimeCurrent = mDowntime.isDowntimeCondition(mExitCondition); 559 // enter downtime, or update mode if reconfigured during an active downtime 560 if (inDowntime && (mode == Global.ZEN_MODE_OFF || downtimeCurrent) && config != null) { 561 final Condition condition = mDowntime.createCondition(config.toDowntimeInfo(), 562 Condition.STATE_TRUE); 563 mZenModeHelper.setZenMode(downtimeMode, "downtimeEnter"); 564 setZenModeCondition(condition, "downtime"); 565 } 566 // exit downtime 567 if (!inDowntime && downtimeCurrent && (mode == Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS 568 || mode == Global.ZEN_MODE_NO_INTERRUPTIONS)) { 569 mZenModeHelper.setZenMode(Global.ZEN_MODE_OFF, "downtimeExit"); 570 } 571 } 572 573 @Override 574 public NextAlarmTracker getNextAlarmTracker() { 575 return mNextAlarmTracker; 576 } 577 } 578 579 private class NextAlarmCallback implements NextAlarmConditionProvider.Callback { 580 @Override 581 public boolean isInDowntime() { 582 return mDowntime.isInDowntime(); 583 } 584 585 @Override 586 public NextAlarmTracker getNextAlarmTracker() { 587 return mNextAlarmTracker; 588 } 589 } 590 591 private static class ConditionRecord { 592 public final Uri id; 593 public final ComponentName component; 594 public Condition condition; 595 public ManagedServiceInfo info; 596 public boolean isAutomatic; 597 public boolean isManual; 598 599 private ConditionRecord(Uri id, ComponentName component) { 600 this.id = id; 601 this.component = component; 602 } 603 604 @Override 605 public String toString() { 606 final StringBuilder sb = new StringBuilder("ConditionRecord[id=") 607 .append(id).append(",component=").append(component); 608 if (isAutomatic) sb.append(",automatic"); 609 if (isManual) sb.append(",manual"); 610 return sb.append(']').toString(); 611 } 612 } 613} 614