XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import android.annotation.SuppressLint;
   4import android.annotation.TargetApi;
   5import android.app.AlarmManager;
   6import android.app.PendingIntent;
   7import android.app.Service;
   8import android.content.Context;
   9import android.content.Intent;
  10import android.content.IntentFilter;
  11import android.content.SharedPreferences;
  12import android.database.ContentObserver;
  13import android.graphics.Bitmap;
  14import android.media.AudioManager;
  15import android.net.ConnectivityManager;
  16import android.net.NetworkInfo;
  17import android.net.Uri;
  18import android.os.Binder;
  19import android.os.Build;
  20import android.os.Bundle;
  21import android.os.Environment;
  22import android.os.IBinder;
  23import android.os.PowerManager;
  24import android.os.PowerManager.WakeLock;
  25import android.os.SystemClock;
  26import android.preference.PreferenceManager;
  27import android.provider.ContactsContract;
  28import android.security.KeyChain;
  29import android.support.annotation.BoolRes;
  30import android.support.annotation.IntegerRes;
  31import android.support.v4.app.RemoteInput;
  32import android.util.DisplayMetrics;
  33import android.util.Log;
  34import android.util.LruCache;
  35import android.util.Pair;
  36
  37import org.openintents.openpgp.IOpenPgpService2;
  38import org.openintents.openpgp.util.OpenPgpApi;
  39import org.openintents.openpgp.util.OpenPgpServiceConnection;
  40
  41import java.math.BigInteger;
  42import java.net.URL;
  43import java.security.SecureRandom;
  44import java.security.cert.CertificateException;
  45import java.security.cert.X509Certificate;
  46import java.util.ArrayList;
  47import java.util.Arrays;
  48import java.util.Collection;
  49import java.util.Collections;
  50import java.util.HashMap;
  51import java.util.HashSet;
  52import java.util.Hashtable;
  53import java.util.Iterator;
  54import java.util.List;
  55import java.util.ListIterator;
  56import java.util.Locale;
  57import java.util.Map;
  58import java.util.concurrent.CopyOnWriteArrayList;
  59import java.util.concurrent.CountDownLatch;
  60import java.util.concurrent.atomic.AtomicBoolean;
  61import java.util.concurrent.atomic.AtomicLong;
  62
  63import eu.siacs.conversations.Config;
  64import eu.siacs.conversations.R;
  65import eu.siacs.conversations.crypto.PgpDecryptionService;
  66import eu.siacs.conversations.crypto.PgpEngine;
  67import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  68import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  69import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  70import eu.siacs.conversations.entities.Account;
  71import eu.siacs.conversations.entities.Blockable;
  72import eu.siacs.conversations.entities.Bookmark;
  73import eu.siacs.conversations.entities.Contact;
  74import eu.siacs.conversations.entities.Conversation;
  75import eu.siacs.conversations.entities.DownloadableFile;
  76import eu.siacs.conversations.entities.Message;
  77import eu.siacs.conversations.entities.MucOptions;
  78import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  79import eu.siacs.conversations.entities.Presence;
  80import eu.siacs.conversations.entities.PresenceTemplate;
  81import eu.siacs.conversations.entities.Roster;
  82import eu.siacs.conversations.entities.ServiceDiscoveryResult;
  83import eu.siacs.conversations.entities.Transferable;
  84import eu.siacs.conversations.entities.TransferablePlaceholder;
  85import eu.siacs.conversations.generator.AbstractGenerator;
  86import eu.siacs.conversations.generator.IqGenerator;
  87import eu.siacs.conversations.generator.MessageGenerator;
  88import eu.siacs.conversations.generator.PresenceGenerator;
  89import eu.siacs.conversations.http.HttpConnectionManager;
  90import eu.siacs.conversations.http.AesGcmURLStreamHandlerFactory;
  91import eu.siacs.conversations.parser.AbstractParser;
  92import eu.siacs.conversations.parser.IqParser;
  93import eu.siacs.conversations.parser.MessageParser;
  94import eu.siacs.conversations.parser.PresenceParser;
  95import eu.siacs.conversations.persistance.DatabaseBackend;
  96import eu.siacs.conversations.persistance.FileBackend;
  97import eu.siacs.conversations.ui.SettingsActivity;
  98import eu.siacs.conversations.ui.UiCallback;
  99import eu.siacs.conversations.utils.ConversationsFileObserver;
 100import eu.siacs.conversations.utils.CryptoHelper;
 101import eu.siacs.conversations.utils.ExceptionHelper;
 102import eu.siacs.conversations.utils.MimeUtils;
 103import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
 104import eu.siacs.conversations.utils.PRNGFixes;
 105import eu.siacs.conversations.utils.PhoneHelper;
 106import eu.siacs.conversations.utils.ReplacingSerialSingleThreadExecutor;
 107import eu.siacs.conversations.utils.Resolver;
 108import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
 109import eu.siacs.conversations.xml.Namespace;
 110import eu.siacs.conversations.utils.XmppUri;
 111import eu.siacs.conversations.xml.Element;
 112import eu.siacs.conversations.xmpp.OnBindListener;
 113import eu.siacs.conversations.xmpp.OnContactStatusChanged;
 114import eu.siacs.conversations.xmpp.OnIqPacketReceived;
 115import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 116import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
 117import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
 118import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
 119import eu.siacs.conversations.xmpp.OnStatusChanged;
 120import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 121import eu.siacs.conversations.xmpp.Patches;
 122import eu.siacs.conversations.xmpp.XmppConnection;
 123import eu.siacs.conversations.xmpp.chatstate.ChatState;
 124import eu.siacs.conversations.xmpp.forms.Data;
 125import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 126import eu.siacs.conversations.xmpp.jid.Jid;
 127import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 128import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 129import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 130import eu.siacs.conversations.xmpp.mam.MamReference;
 131import eu.siacs.conversations.xmpp.pep.Avatar;
 132import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 133import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 134import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 135import me.leolin.shortcutbadger.ShortcutBadger;
 136
 137public class XmppConnectionService extends Service {
 138
 139	static {
 140		URL.setURLStreamHandlerFactory(new AesGcmURLStreamHandlerFactory());
 141	}
 142
 143	public static final String ACTION_REPLY_TO_CONVERSATION = "reply_to_conversations";
 144	public static final String ACTION_MARK_AS_READ = "mark_as_read";
 145	public static final String ACTION_SNOOZE = "snooze";
 146	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 147	public static final String ACTION_DISMISS_ERROR_NOTIFICATIONS = "dismiss_error";
 148	public static final String ACTION_TRY_AGAIN = "try_again";
 149	public static final String ACTION_IDLE_PING = "idle_ping";
 150	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 151	public static final String ACTION_GCM_TOKEN_REFRESH = "gcm_token_refresh";
 152	public static final String ACTION_GCM_MESSAGE_RECEIVED = "gcm_message_received";
 153	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor("FileAdding");
 154	private final SerialSingleThreadExecutor mVideoCompressionExecutor = new SerialSingleThreadExecutor("VideoCompression");
 155	private final SerialSingleThreadExecutor mDatabaseWriterExecutor = new SerialSingleThreadExecutor("DatabaseWriter");
 156	private final SerialSingleThreadExecutor mDatabaseReaderExecutor = new SerialSingleThreadExecutor("DatabaseReader");
 157	private final SerialSingleThreadExecutor mNotificationExecutor = new SerialSingleThreadExecutor("NotificationExecutor");
 158	private ReplacingSerialSingleThreadExecutor mContactMergerExecutor = new ReplacingSerialSingleThreadExecutor(true);
 159	private final IBinder mBinder = new XmppConnectionBinder();
 160	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 161	private final IqGenerator mIqGenerator = new IqGenerator(this);
 162	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 163	private final HashSet<Jid> mLowPingTimeoutMode = new HashSet<>();
 164
 165	private long mLastActivity = 0;
 166
 167	public DatabaseBackend databaseBackend;
 168	private ContentObserver contactObserver = new ContentObserver(null) {
 169		@Override
 170		public void onChange(boolean selfChange) {
 171			super.onChange(selfChange);
 172			Intent intent = new Intent(getApplicationContext(),
 173					XmppConnectionService.class);
 174			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 175			startService(intent);
 176		}
 177	};
 178	private FileBackend fileBackend = new FileBackend(this);
 179	private MemorizingTrustManager mMemorizingTrustManager;
 180	private NotificationService mNotificationService = new NotificationService(this);
 181	private ShortcutService mShortcutService = new ShortcutService(this);
 182	private AtomicBoolean mInitialAddressbookSyncCompleted = new AtomicBoolean(false);
 183	private AtomicBoolean mForceForegroundService = new AtomicBoolean(false);
 184	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 185	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 186	private IqParser mIqParser = new IqParser(this);
 187	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 188		@Override
 189		public void onIqPacketReceived(Account account, IqPacket packet) {
 190			if (packet.getType() != IqPacket.TYPE.RESULT) {
 191				Element error = packet.findChild("error");
 192				String text = error != null ? error.findChildContent("text") : null;
 193				if (text != null) {
 194					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": received iq error - " + text);
 195				}
 196			}
 197		}
 198	};
 199	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 200	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 201	private List<Account> accounts;
 202	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 203			this);
 204	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 205
 206		@Override
 207		public void onContactStatusChanged(Contact contact, boolean online) {
 208			Conversation conversation = find(getConversations(), contact);
 209			if (conversation != null) {
 210				if (online) {
 211					if (contact.getPresences().size() == 1) {
 212						sendUnsentMessages(conversation);
 213					}
 214				}
 215			}
 216		}
 217	};
 218	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 219			this);
 220	private AvatarService mAvatarService = new AvatarService(this);
 221	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 222	private PushManagementService mPushManagementService = new PushManagementService(this);
 223	private OnConversationUpdate mOnConversationUpdate = null;
 224
 225
 226	private final ConversationsFileObserver fileObserver = new ConversationsFileObserver(
 227			Environment.getExternalStorageDirectory().getAbsolutePath()
 228	) {
 229		@Override
 230		public void onEvent(int event, String path) {
 231			markFileDeleted(path);
 232		}
 233	};
 234	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 235
 236		@Override
 237		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 238			mJingleConnectionManager.deliverPacket(account, packet);
 239		}
 240	};
 241	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 242
 243		@Override
 244		public void onMessageAcknowledged(Account account, String uuid) {
 245			for (final Conversation conversation : getConversations()) {
 246				if (conversation.getAccount() == account) {
 247					Message message = conversation.findUnsentMessageWithUuid(uuid);
 248					if (message != null) {
 249						markMessage(message, Message.STATUS_SEND);
 250					}
 251				}
 252			}
 253		}
 254	};
 255	private int convChangedListenerCount = 0;
 256	private OnShowErrorToast mOnShowErrorToast = null;
 257	private int showErrorToastListenerCount = 0;
 258	private int unreadCount = -1;
 259	private OnAccountUpdate mOnAccountUpdate = null;
 260	private OnCaptchaRequested mOnCaptchaRequested = null;
 261	private int accountChangedListenerCount = 0;
 262	private int captchaRequestedListenerCount = 0;
 263	private OnRosterUpdate mOnRosterUpdate = null;
 264	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 265	private int updateBlocklistListenerCount = 0;
 266	private int rosterChangedListenerCount = 0;
 267	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 268	private int mucRosterChangedListenerCount = 0;
 269	private OnKeyStatusUpdated mOnKeyStatusUpdated = null;
 270	private int keyStatusUpdatedListenerCount = 0;
 271	private AtomicLong mLastExpiryRun = new AtomicLong(0);
 272	private SecureRandom mRandom;
 273	private LruCache<Pair<String, String>, ServiceDiscoveryResult> discoCache = new LruCache<>(20);
 274	private final OnBindListener mOnBindListener = new OnBindListener() {
 275
 276		@Override
 277		public void onBind(final Account account) {
 278			synchronized (mInProgressAvatarFetches) {
 279				for (Iterator<String> iterator = mInProgressAvatarFetches.iterator(); iterator.hasNext(); ) {
 280					final String KEY = iterator.next();
 281					if (KEY.startsWith(account.getJid().toBareJid() + "_")) {
 282						iterator.remove();
 283					}
 284				}
 285			}
 286			if (account.setOption(Account.OPTION_LOGGED_IN_SUCCESSFULLY, true)) {
 287				databaseBackend.updateAccount(account);
 288			}
 289			account.getRoster().clearPresences();
 290			mJingleConnectionManager.cancelInTransmission();
 291			fetchRosterFromServer(account);
 292			fetchBookmarks(account);
 293			final boolean flexible= account.getXmppConnection().getFeatures().flexibleOfflineMessageRetrieval();
 294			final boolean catchup = getMessageArchiveService().inCatchup(account);
 295			if (flexible && catchup) {
 296				sendIqPacket(account, mIqGenerator.purgeOfflineMessages(), (acc, packet) -> {
 297					if (packet.getType() == IqPacket.TYPE.RESULT) {
 298						Log.d(Config.LOGTAG, acc.getJid().toBareJid()+": successfully purged offline messages");
 299					}
 300				});
 301			}
 302			sendPresence(account);
 303			if (mPushManagementService.available(account)) {
 304				mPushManagementService.registerPushTokenOnServer(account);
 305			}
 306			connectMultiModeConversations(account);
 307			syncDirtyContacts(account);
 308		}
 309	};
 310	private OnStatusChanged statusListener = new OnStatusChanged() {
 311
 312		@Override
 313		public void onStatusChanged(final Account account) {
 314			XmppConnection connection = account.getXmppConnection();
 315			if (mOnAccountUpdate != null) {
 316				mOnAccountUpdate.onAccountUpdate();
 317			}
 318			if (account.getStatus() == Account.State.ONLINE) {
 319				synchronized (mLowPingTimeoutMode) {
 320					if (mLowPingTimeoutMode.remove(account.getJid().toBareJid())) {
 321						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": leaving low ping timeout mode");
 322					}
 323				}
 324				if (account.setShowErrorNotification(true)) {
 325					databaseBackend.updateAccount(account);
 326				}
 327				mMessageArchiveService.executePendingQueries(account);
 328				if (connection != null && connection.getFeatures().csi()) {
 329					if (checkListeners()) {
 330						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//inactive");
 331						connection.sendInactive();
 332					} else {
 333						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//active");
 334						connection.sendActive();
 335					}
 336				}
 337				List<Conversation> conversations = getConversations();
 338				for (Conversation conversation : conversations) {
 339					if (conversation.getAccount() == account && !account.pendingConferenceJoins.contains(conversation)) {
 340						sendUnsentMessages(conversation);
 341					}
 342				}
 343				for (Conversation conversation : account.pendingConferenceLeaves) {
 344					leaveMuc(conversation);
 345				}
 346				account.pendingConferenceLeaves.clear();
 347				for (Conversation conversation : account.pendingConferenceJoins) {
 348					joinMuc(conversation);
 349				}
 350				account.pendingConferenceJoins.clear();
 351				scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 352			} else if (account.getStatus() == Account.State.OFFLINE || account.getStatus() == Account.State.DISABLED) {
 353				resetSendingToWaiting(account);
 354				if (account.isEnabled() && isInLowPingTimeoutMode(account)) {
 355					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": went into offline state during low ping mode. reconnecting now");
 356					reconnectAccount(account, true, false);
 357				} else {
 358					int timeToReconnect = mRandom.nextInt(10) + 2;
 359					scheduleWakeUpCall(timeToReconnect, account.getUuid().hashCode());
 360				}
 361			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 362				databaseBackend.updateAccount(account);
 363				reconnectAccount(account, true, false);
 364			} else if (account.getStatus() != Account.State.CONNECTING && account.getStatus() != Account.State.NO_INTERNET) {
 365				resetSendingToWaiting(account);
 366				if (connection != null && account.getStatus().isAttemptReconnect()) {
 367					final int next = connection.getTimeToNextAttempt();
 368					final boolean lowPingTimeoutMode = isInLowPingTimeoutMode(account);
 369					if (next <= 0) {
 370						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": error connecting account. reconnecting now. lowPingTimeout=" + Boolean.toString(lowPingTimeoutMode));
 371						reconnectAccount(account, true, false);
 372					} else {
 373						final int attempt = connection.getAttempt() + 1;
 374						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": error connecting account. try again in " + next + "s for the " + attempt + " time. lowPingTimeout=" + Boolean.toString(lowPingTimeoutMode));
 375						scheduleWakeUpCall(next, account.getUuid().hashCode());
 376					}
 377				}
 378			}
 379			getNotificationService().updateErrorNotification();
 380		}
 381	};
 382
 383	private boolean isInLowPingTimeoutMode(Account account) {
 384		synchronized (mLowPingTimeoutMode) {
 385			return mLowPingTimeoutMode.contains(account.getJid().toBareJid());
 386		}
 387	}
 388
 389	public void startForcingForegroundNotification() {
 390		mForceForegroundService.set(true);
 391		toggleForegroundService();
 392	}
 393
 394	public void stopForcingForegroundNotification() {
 395		mForceForegroundService.set(false);
 396		toggleForegroundService();
 397	}
 398
 399	private OpenPgpServiceConnection pgpServiceConnection;
 400	private PgpEngine mPgpEngine = null;
 401	private WakeLock wakeLock;
 402	private PowerManager pm;
 403	private LruCache<String, Bitmap> mBitmapCache;
 404	private EventReceiver mEventReceiver = new EventReceiver();
 405
 406	public final CountDownLatch restoredFromDatabaseLatch = new CountDownLatch(1);
 407
 408	private static String generateFetchKey(Account account, final Avatar avatar) {
 409		return account.getJid().toBareJid() + "_" + avatar.owner + "_" + avatar.sha1sum;
 410	}
 411
 412	public boolean areMessagesInitialized() {
 413		return this.restoredFromDatabaseLatch.getCount() == 0;
 414	}
 415
 416	public PgpEngine getPgpEngine() {
 417		if (!Config.supportOpenPgp()) {
 418			return null;
 419		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 420			if (this.mPgpEngine == null) {
 421				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 422						getApplicationContext(),
 423						pgpServiceConnection.getService()), this);
 424			}
 425			return mPgpEngine;
 426		} else {
 427			return null;
 428		}
 429
 430	}
 431
 432	public OpenPgpApi getOpenPgpApi() {
 433		if (!Config.supportOpenPgp()) {
 434			return null;
 435		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 436			return new OpenPgpApi(this, pgpServiceConnection.getService());
 437		} else {
 438			return null;
 439		}
 440	}
 441
 442	public FileBackend getFileBackend() {
 443		return this.fileBackend;
 444	}
 445
 446	public AvatarService getAvatarService() {
 447		return this.mAvatarService;
 448	}
 449
 450	public void attachLocationToConversation(final Conversation conversation,final Uri uri, final UiCallback<Message> callback) {
 451		int encryption = conversation.getNextEncryption();
 452		if (encryption == Message.ENCRYPTION_PGP) {
 453			encryption = Message.ENCRYPTION_DECRYPTED;
 454		}
 455		Message message = new Message(conversation, uri.toString(), encryption);
 456		if (conversation.getNextCounterpart() != null) {
 457			message.setCounterpart(conversation.getNextCounterpart());
 458		}
 459		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 460			getPgpEngine().encrypt(message, callback);
 461		} else {
 462			sendMessage(message);
 463			callback.success(message);
 464		}
 465	}
 466
 467	public void attachFileToConversation(final Conversation conversation, final Uri uri, final String type, final UiCallback<Message> callback) {
 468		if (FileBackend.weOwnFile(this, uri)) {
 469			Log.d(Config.LOGTAG, "trying to attach file that belonged to us");
 470			callback.error(R.string.security_error_invalid_file_access, null);
 471			return;
 472		}
 473		final Message message;
 474		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 475			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 476		} else {
 477			message = new Message(conversation, "", conversation.getNextEncryption());
 478		}
 479		message.setCounterpart(conversation.getNextCounterpart());
 480		message.setType(Message.TYPE_FILE);
 481		final AttachFileToConversationRunnable runnable = new AttachFileToConversationRunnable(this, uri, type, message, callback);
 482		if (runnable.isVideoMessage()) {
 483			mVideoCompressionExecutor.execute(runnable);
 484		} else {
 485			mFileAddingExecutor.execute(runnable);
 486		}
 487	}
 488
 489	public void attachImageToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 490		if (FileBackend.weOwnFile(this, uri)) {
 491			Log.d(Config.LOGTAG, "trying to attach file that belonged to us");
 492			callback.error(R.string.security_error_invalid_file_access, null);
 493			return;
 494		}
 495
 496		final String mimeType = MimeUtils.guessMimeTypeFromUri(this, uri);
 497		final String compressPictures = getCompressPicturesPreference();
 498
 499		if ("never".equals(compressPictures)
 500				|| ("auto".equals(compressPictures) && getFileBackend().useImageAsIs(uri))
 501				|| (mimeType != null && mimeType.endsWith("/gif"))) {
 502			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": not compressing picture. sending as file");
 503			attachFileToConversation(conversation, uri, mimeType, callback);
 504			return;
 505		}
 506		final Message message;
 507		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 508			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 509		} else {
 510			message = new Message(conversation, "", conversation.getNextEncryption());
 511		}
 512		message.setCounterpart(conversation.getNextCounterpart());
 513		message.setType(Message.TYPE_IMAGE);
 514		mFileAddingExecutor.execute(new Runnable() {
 515
 516			@Override
 517			public void run() {
 518				try {
 519					getFileBackend().copyImageToPrivateStorage(message, uri);
 520					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 521						final PgpEngine pgpEngine = getPgpEngine();
 522						if (pgpEngine != null) {
 523							pgpEngine.encrypt(message, callback);
 524						} else if (callback != null) {
 525							callback.error(R.string.unable_to_connect_to_keychain, null);
 526						}
 527					} else {
 528						sendMessage(message);
 529						callback.success(message);
 530					}
 531				} catch (final FileBackend.FileCopyException e) {
 532					callback.error(e.getResId(), message);
 533				}
 534			}
 535		});
 536	}
 537
 538	public Conversation find(Bookmark bookmark) {
 539		return find(bookmark.getAccount(), bookmark.getJid());
 540	}
 541
 542	public Conversation find(final Account account, final Jid jid) {
 543		return find(getConversations(), account, jid);
 544	}
 545
 546	@Override
 547	public int onStartCommand(Intent intent, int flags, int startId) {
 548		final String action = intent == null ? null : intent.getAction();
 549		String pushedAccountHash = null;
 550		boolean interactive = false;
 551		if (action != null) {
 552			final String uuid = intent.getStringExtra("uuid");
 553			switch (action) {
 554				case ConnectivityManager.CONNECTIVITY_ACTION:
 555					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 556						resetAllAttemptCounts(true, false);
 557					}
 558					break;
 559				case ACTION_MERGE_PHONE_CONTACTS:
 560					if (restoredFromDatabaseLatch.getCount() == 0) {
 561						loadPhoneContacts();
 562					}
 563					return START_STICKY;
 564				case Intent.ACTION_SHUTDOWN:
 565					logoutAndSave(true);
 566					return START_NOT_STICKY;
 567				case ACTION_CLEAR_NOTIFICATION:
 568					mNotificationExecutor.execute(() -> {
 569						try {
 570							final Conversation c = findConversationByUuid(uuid);
 571							if (c != null) {
 572								mNotificationService.clear(c);
 573							} else {
 574								mNotificationService.clear();
 575							}
 576							restoredFromDatabaseLatch.await();
 577
 578						} catch (InterruptedException e) {
 579							Log.d(Config.LOGTAG,"unable to process clear notification");
 580						}
 581					});
 582					break;
 583				case ACTION_DISMISS_ERROR_NOTIFICATIONS:
 584					dismissErrorNotifications();
 585					break;
 586				case ACTION_TRY_AGAIN:
 587					resetAllAttemptCounts(false, true);
 588					interactive = true;
 589					break;
 590				case ACTION_REPLY_TO_CONVERSATION:
 591					Bundle remoteInput = RemoteInput.getResultsFromIntent(intent);
 592					if (remoteInput == null) {
 593						break;
 594					}
 595					final CharSequence body = remoteInput.getCharSequence("text_reply");
 596					final boolean dismissNotification = intent.getBooleanExtra("dismiss_notification", false);
 597					if (body == null || body.length() <= 0) {
 598						break;
 599					}
 600					mNotificationExecutor.execute(()-> {
 601						try {
 602							restoredFromDatabaseLatch.await();
 603							final Conversation c = findConversationByUuid(uuid);
 604							if (c != null) {
 605								directReply(c, body.toString(), dismissNotification);
 606							}
 607						} catch (InterruptedException e) {
 608							Log.d(Config.LOGTAG,"unable to process direct reply");
 609						}
 610					});
 611					break;
 612				case ACTION_MARK_AS_READ:
 613					mNotificationExecutor.execute(() -> {
 614						final Conversation c = findConversationByUuid(uuid);
 615						if (c == null) {
 616							Log.d(Config.LOGTAG, "received mark read intent for unknown conversation (" + uuid + ")");
 617							return;
 618						}
 619						try {
 620							restoredFromDatabaseLatch.await();
 621							sendReadMarker(c);
 622						} catch (InterruptedException e) {
 623							Log.d(Config.LOGTAG,"unable to process notification read marker for conversation "+c.getName());
 624						}
 625
 626					});
 627					break;
 628				case ACTION_SNOOZE:
 629					mNotificationExecutor.execute(() -> {
 630						final Conversation c = findConversationByUuid(uuid);
 631						if (c == null) {
 632							Log.d(Config.LOGTAG,"received snooze intent for unknown conversation ("+ uuid +")");
 633							return;
 634						}
 635						c.setMutedTill(System.currentTimeMillis() + 30 * 60 * 1000);
 636						mNotificationService.clear(c);
 637						updateConversation(c);
 638					});
 639				case AudioManager.RINGER_MODE_CHANGED_ACTION:
 640					if (dndOnSilentMode()) {
 641						refreshAllPresences();
 642					}
 643					break;
 644				case Intent.ACTION_SCREEN_ON:
 645					deactivateGracePeriod();
 646				case Intent.ACTION_SCREEN_OFF:
 647					if (awayWhenScreenOff()) {
 648						refreshAllPresences();
 649					}
 650					break;
 651				case ACTION_GCM_TOKEN_REFRESH:
 652					refreshAllGcmTokens();
 653					break;
 654				case ACTION_IDLE_PING:
 655					if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 656						scheduleNextIdlePing();
 657					}
 658					break;
 659				case ACTION_GCM_MESSAGE_RECEIVED:
 660					Log.d(Config.LOGTAG, "gcm push message arrived in service. extras=" + intent.getExtras());
 661					pushedAccountHash = intent.getStringExtra("account");
 662					break;
 663				case Intent.ACTION_SEND:
 664					Uri uri = intent.getData();
 665					if (uri != null) {
 666						Log.d(Config.LOGTAG, "received uri permission for "+uri.toString());
 667					}
 668					return START_STICKY;
 669			}
 670		}
 671		synchronized (this) {
 672			this.wakeLock.acquire();
 673			boolean pingNow = ConnectivityManager.CONNECTIVITY_ACTION.equals(action);
 674			HashSet<Account> pingCandidates = new HashSet<>();
 675			for (Account account : accounts) {
 676				pingNow |= processAccountState(account,
 677						interactive,
 678						"ui".equals(action),
 679						CryptoHelper.getAccountFingerprint(account).equals(pushedAccountHash),
 680						pingCandidates);
 681			}
 682			if (pingNow) {
 683				for (Account account : pingCandidates) {
 684					final boolean lowTimeout = isInLowPingTimeoutMode(account);
 685					account.getXmppConnection().sendPing();
 686					Log.d(Config.LOGTAG, account.getJid().toBareJid() + " send ping (action=" + action + ",lowTimeout=" + Boolean.toString(lowTimeout) + ")");
 687					scheduleWakeUpCall(lowTimeout ? Config.LOW_PING_TIMEOUT : Config.PING_TIMEOUT, account.getUuid().hashCode());
 688				}
 689			}
 690			if (wakeLock.isHeld()) {
 691				try {
 692					wakeLock.release();
 693				} catch (final RuntimeException ignored) {
 694				}
 695			}
 696		}
 697		if (SystemClock.elapsedRealtime() - mLastExpiryRun.get() >= Config.EXPIRY_INTERVAL) {
 698			expireOldMessages();
 699		}
 700		return START_STICKY;
 701	}
 702
 703	private boolean processAccountState(Account account, boolean interactive, boolean isUiAction, boolean isAccountPushed, HashSet<Account> pingCandidates) {
 704		boolean pingNow = false;
 705		if (account.getStatus().isAttemptReconnect()) {
 706			if (!hasInternetConnection()) {
 707				account.setStatus(Account.State.NO_INTERNET);
 708				if (statusListener != null) {
 709					statusListener.onStatusChanged(account);
 710				}
 711			} else {
 712				if (account.getStatus() == Account.State.NO_INTERNET) {
 713					account.setStatus(Account.State.OFFLINE);
 714					if (statusListener != null) {
 715						statusListener.onStatusChanged(account);
 716					}
 717				}
 718				if (account.getStatus() == Account.State.ONLINE) {
 719					synchronized (mLowPingTimeoutMode) {
 720						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 721						long lastSent = account.getXmppConnection().getLastPingSent();
 722						long pingInterval = isUiAction ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 723						long msToNextPing = (Math.max(lastReceived, lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 724						int pingTimeout = mLowPingTimeoutMode.contains(account.getJid().toBareJid()) ? Config.LOW_PING_TIMEOUT * 1000 : Config.PING_TIMEOUT * 1000;
 725						long pingTimeoutIn = (lastSent + pingTimeout) - SystemClock.elapsedRealtime();
 726						if (lastSent > lastReceived) {
 727							if (pingTimeoutIn < 0) {
 728								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 729								this.reconnectAccount(account, true, interactive);
 730							} else {
 731								int secs = (int) (pingTimeoutIn / 1000);
 732								this.scheduleWakeUpCall(secs, account.getUuid().hashCode());
 733							}
 734						} else {
 735							pingCandidates.add(account);
 736							if (isAccountPushed) {
 737								pingNow = true;
 738								if (mLowPingTimeoutMode.add(account.getJid().toBareJid())) {
 739									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": entering low ping timeout mode");
 740								}
 741							} else if (msToNextPing <= 0) {
 742								pingNow = true;
 743							} else {
 744								this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 745								if (mLowPingTimeoutMode.remove(account.getJid().toBareJid())) {
 746									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": leaving low ping timeout mode");
 747								}
 748							}
 749						}
 750					}
 751				} else if (account.getStatus() == Account.State.OFFLINE) {
 752					reconnectAccount(account, true, interactive);
 753				} else if (account.getStatus() == Account.State.CONNECTING) {
 754					long secondsSinceLastConnect = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000;
 755					long secondsSinceLastDisco = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastDiscoStarted()) / 1000;
 756					long discoTimeout = Config.CONNECT_DISCO_TIMEOUT - secondsSinceLastDisco;
 757					long timeout = Config.CONNECT_TIMEOUT - secondsSinceLastConnect;
 758					if (timeout < 0) {
 759						Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting (secondsSinceLast=" + secondsSinceLastConnect + ")");
 760						account.getXmppConnection().resetAttemptCount(false);
 761						reconnectAccount(account, true, interactive);
 762					} else if (discoTimeout < 0) {
 763						account.getXmppConnection().sendDiscoTimeout();
 764						scheduleWakeUpCall((int) Math.min(timeout, discoTimeout), account.getUuid().hashCode());
 765					} else {
 766						scheduleWakeUpCall((int) Math.min(timeout, discoTimeout), account.getUuid().hashCode());
 767					}
 768				} else {
 769					if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 770						reconnectAccount(account, true, interactive);
 771					}
 772				}
 773			}
 774		}
 775		return pingNow;
 776	}
 777
 778	public boolean isDataSaverDisabled() {
 779		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 780			ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
 781			return !connectivityManager.isActiveNetworkMetered()
 782					|| connectivityManager.getRestrictBackgroundStatus() == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_DISABLED;
 783		} else {
 784			return true;
 785		}
 786	}
 787
 788	private void directReply(Conversation conversation, String body, final boolean dismissAfterReply) {
 789		Message message = new Message(conversation, body, conversation.getNextEncryption());
 790		message.markUnread();
 791		if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 792			getPgpEngine().encrypt(message, new UiCallback<Message>() {
 793				@Override
 794				public void success(Message message) {
 795					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 796					sendMessage(message);
 797					if (dismissAfterReply) {
 798						markRead(message.getConversation(), true);
 799					} else {
 800						mNotificationService.pushFromDirectReply(message);
 801					}
 802				}
 803
 804				@Override
 805				public void error(int errorCode, Message object) {
 806
 807				}
 808
 809				@Override
 810				public void userInputRequried(PendingIntent pi, Message object) {
 811
 812				}
 813			});
 814		} else {
 815			sendMessage(message);
 816			if (dismissAfterReply) {
 817				markRead(conversation, true);
 818			} else {
 819				mNotificationService.pushFromDirectReply(message);
 820			}
 821		}
 822	}
 823
 824	private boolean dndOnSilentMode() {
 825		return getBooleanPreference(SettingsActivity.DND_ON_SILENT_MODE, R.bool.dnd_on_silent_mode);
 826	}
 827
 828	private boolean manuallyChangePresence() {
 829		return getBooleanPreference(SettingsActivity.MANUALLY_CHANGE_PRESENCE, R.bool.manually_change_presence);
 830	}
 831
 832	private boolean treatVibrateAsSilent() {
 833		return getBooleanPreference(SettingsActivity.TREAT_VIBRATE_AS_SILENT, R.bool.treat_vibrate_as_silent);
 834	}
 835
 836	private boolean awayWhenScreenOff() {
 837		return getBooleanPreference(SettingsActivity.AWAY_WHEN_SCREEN_IS_OFF, R.bool.away_when_screen_off);
 838	}
 839
 840	private String getCompressPicturesPreference() {
 841		return getPreferences().getString("picture_compression", getResources().getString(R.string.picture_compression));
 842	}
 843
 844	private Presence.Status getTargetPresence() {
 845		if (dndOnSilentMode() && isPhoneSilenced()) {
 846			return Presence.Status.DND;
 847		} else if (awayWhenScreenOff() && !isInteractive()) {
 848			return Presence.Status.AWAY;
 849		} else {
 850			return Presence.Status.ONLINE;
 851		}
 852	}
 853
 854	@SuppressLint("NewApi")
 855	@SuppressWarnings("deprecation")
 856	public boolean isInteractive() {
 857		final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 858
 859		final boolean isScreenOn;
 860		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 861			isScreenOn = pm.isScreenOn();
 862		} else {
 863			isScreenOn = pm.isInteractive();
 864		}
 865		return isScreenOn;
 866	}
 867
 868	private boolean isPhoneSilenced() {
 869		AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
 870		try {
 871			if (treatVibrateAsSilent()) {
 872				return audioManager.getRingerMode() != AudioManager.RINGER_MODE_NORMAL;
 873			} else {
 874				return audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT;
 875			}
 876		} catch (Throwable throwable) {
 877			Log.d(Config.LOGTAG, "platform bug in isPhoneSilenced (" + throwable.getMessage() + ")");
 878			return false;
 879		}
 880	}
 881
 882	private void resetAllAttemptCounts(boolean reallyAll, boolean retryImmediately) {
 883		Log.d(Config.LOGTAG, "resetting all attempt counts");
 884		for (Account account : accounts) {
 885			if (account.hasErrorStatus() || reallyAll) {
 886				final XmppConnection connection = account.getXmppConnection();
 887				if (connection != null) {
 888					connection.resetAttemptCount(retryImmediately);
 889				}
 890			}
 891			if (account.setShowErrorNotification(true)) {
 892				databaseBackend.updateAccount(account);
 893			}
 894		}
 895		mNotificationService.updateErrorNotification();
 896	}
 897
 898	private void dismissErrorNotifications() {
 899		for (final Account account : this.accounts) {
 900			if (account.hasErrorStatus()) {
 901				Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": dismissing error notification");
 902				if (account.setShowErrorNotification(false)) {
 903					databaseBackend.updateAccount(account);
 904				}
 905			}
 906		}
 907	}
 908
 909	private void expireOldMessages() {
 910		expireOldMessages(false);
 911	}
 912
 913	public void expireOldMessages(final boolean resetHasMessagesLeftOnServer) {
 914		mLastExpiryRun.set(SystemClock.elapsedRealtime());
 915		mDatabaseWriterExecutor.execute(new Runnable() {
 916			@Override
 917			public void run() {
 918				long timestamp = getAutomaticMessageDeletionDate();
 919				if (timestamp > 0) {
 920					databaseBackend.expireOldMessages(timestamp);
 921					synchronized (XmppConnectionService.this.conversations) {
 922						for (Conversation conversation : XmppConnectionService.this.conversations) {
 923							conversation.expireOldMessages(timestamp);
 924							if (resetHasMessagesLeftOnServer) {
 925								conversation.messagesLoaded.set(true);
 926								conversation.setHasMessagesLeftOnServer(true);
 927							}
 928						}
 929					}
 930					updateConversationUi();
 931				}
 932			}
 933		});
 934	}
 935
 936	public boolean hasInternetConnection() {
 937		final ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
 938		try {
 939			final NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 940			return activeNetwork != null && activeNetwork.isConnected();
 941		} catch (RuntimeException e) {
 942			Log.d(Config.LOGTAG,"unable to check for internet connection",e);
 943			return true; //if internet connection can not be checked it is probably best to just try
 944		}
 945	}
 946
 947	@SuppressLint("TrulyRandom")
 948	@Override
 949	public void onCreate() {
 950		ExceptionHelper.init(getApplicationContext());
 951		PRNGFixes.apply();
 952		Resolver.init(this);
 953		this.mRandom = new SecureRandom();
 954		updateMemorizingTrustmanager();
 955		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 956		final int cacheSize = maxMemory / 8;
 957		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 958			@Override
 959			protected int sizeOf(final String key, final Bitmap bitmap) {
 960				return bitmap.getByteCount() / 1024;
 961			}
 962		};
 963
 964		Log.d(Config.LOGTAG, "initializing database...");
 965		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 966		Log.d(Config.LOGTAG, "restoring accounts...");
 967		this.accounts = databaseBackend.getAccounts();
 968		final SharedPreferences.Editor editor = getPreferences().edit();
 969		if (this.accounts.size() == 0 && Arrays.asList("Sony", "Sony Ericsson").contains(Build.MANUFACTURER)) {
 970			editor.putBoolean(SettingsActivity.KEEP_FOREGROUND_SERVICE, true);
 971			Log.d(Config.LOGTAG, Build.MANUFACTURER + " is on blacklist. enabling foreground service");
 972		}
 973		editor.putBoolean(EventReceiver.SETTING_ENABLED_ACCOUNTS, hasEnabledAccounts()).apply();
 974		editor.apply();
 975
 976		restoreFromDatabase();
 977
 978		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 979		new Thread(new Runnable() {
 980			@Override
 981			public void run() {
 982				fileObserver.startWatching();
 983			}
 984		}).start();
 985		if (Config.supportOpenPgp()) {
 986			this.pgpServiceConnection = new OpenPgpServiceConnection(this, "org.sufficientlysecure.keychain", new OpenPgpServiceConnection.OnBound() {
 987				@Override
 988				public void onBound(IOpenPgpService2 service) {
 989					for (Account account : accounts) {
 990						final PgpDecryptionService pgp = account.getPgpDecryptionService();
 991						if (pgp != null) {
 992							pgp.continueDecryption(true);
 993						}
 994					}
 995				}
 996
 997				@Override
 998				public void onError(Exception e) {
 999				}
1000			});
1001			this.pgpServiceConnection.bindToService();
1002		}
1003
1004		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
1005		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "XmppConnectionService");
1006
1007		toggleForegroundService();
1008		updateUnreadCountBadge();
1009		toggleScreenEventReceiver();
1010		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1011			scheduleNextIdlePing();
1012		}
1013		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
1014			registerReceiver(this.mEventReceiver, new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
1015		}
1016	}
1017
1018	@Override
1019	public void onTrimMemory(int level) {
1020		super.onTrimMemory(level);
1021		if (level >= TRIM_MEMORY_COMPLETE) {
1022			Log.d(Config.LOGTAG, "clear cache due to low memory");
1023			getBitmapCache().evictAll();
1024		}
1025	}
1026
1027	@Override
1028	public void onDestroy() {
1029		try {
1030			unregisterReceiver(this.mEventReceiver);
1031		} catch (IllegalArgumentException e) {
1032			//ignored
1033		}
1034		fileObserver.stopWatching();
1035		super.onDestroy();
1036	}
1037
1038	public void toggleScreenEventReceiver() {
1039		if (awayWhenScreenOff() && !manuallyChangePresence()) {
1040			final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
1041			filter.addAction(Intent.ACTION_SCREEN_OFF);
1042			registerReceiver(this.mEventReceiver, filter);
1043		} else {
1044			try {
1045				unregisterReceiver(this.mEventReceiver);
1046			} catch (IllegalArgumentException e) {
1047				//ignored
1048			}
1049		}
1050	}
1051
1052	public void toggleForegroundService() {
1053		if (mForceForegroundService.get() || (keepForegroundService() && hasEnabledAccounts())) {
1054			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
1055			Log.d(Config.LOGTAG, "started foreground service");
1056		} else {
1057			stopForeground(true);
1058			Log.d(Config.LOGTAG, "stopped foreground service");
1059		}
1060	}
1061
1062	public boolean keepForegroundService() {
1063		return getBooleanPreference(SettingsActivity.KEEP_FOREGROUND_SERVICE, R.bool.enable_foreground_service);
1064	}
1065
1066	@Override
1067	public void onTaskRemoved(final Intent rootIntent) {
1068		super.onTaskRemoved(rootIntent);
1069		if (keepForegroundService() || mForceForegroundService.get()) {
1070			Log.d(Config.LOGTAG, "ignoring onTaskRemoved because foreground service is activated");
1071		} else {
1072			this.logoutAndSave(false);
1073		}
1074	}
1075
1076	private void logoutAndSave(boolean stop) {
1077		int activeAccounts = 0;
1078		for (final Account account : accounts) {
1079			if (account.getStatus() != Account.State.DISABLED) {
1080				activeAccounts++;
1081			}
1082			databaseBackend.writeRoster(account.getRoster());
1083			if (account.getXmppConnection() != null) {
1084				new Thread(new Runnable() {
1085					@Override
1086					public void run() {
1087						disconnect(account, false);
1088					}
1089				}).start();
1090			}
1091		}
1092		if (stop || activeAccounts == 0) {
1093			Log.d(Config.LOGTAG, "good bye");
1094			stopSelf();
1095		}
1096	}
1097
1098	public void scheduleWakeUpCall(int seconds, int requestCode) {
1099		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
1100		final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1101		Intent intent = new Intent(this, EventReceiver.class);
1102		intent.setAction("ping");
1103		PendingIntent pendingIntent = PendingIntent.getBroadcast(this, requestCode, intent, 0);
1104		try {
1105			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, pendingIntent);
1106		} catch (RuntimeException e) {
1107			Log.e(Config.LOGTAG, "unable to schedule alarm for ping", e);
1108		}
1109	}
1110
1111	@TargetApi(Build.VERSION_CODES.M)
1112	private void scheduleNextIdlePing() {
1113		final long timeToWake = SystemClock.elapsedRealtime() + (Config.IDLE_PING_INTERVAL * 1000);
1114		final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1115		Intent intent = new Intent(this, EventReceiver.class);
1116		intent.setAction(ACTION_IDLE_PING);
1117		PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
1118		try {
1119			alarmManager.setAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, pendingIntent);
1120		} catch (RuntimeException e) {
1121			Log.d(Config.LOGTAG, "unable to schedule alarm for idle ping", e);
1122		}
1123	}
1124
1125	public XmppConnection createConnection(final Account account) {
1126		final XmppConnection connection = new XmppConnection(account, this);
1127		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
1128		connection.setOnStatusChangedListener(this.statusListener);
1129		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
1130		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
1131		connection.setOnJinglePacketReceivedListener(this.jingleListener);
1132		connection.setOnBindListener(this.mOnBindListener);
1133		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
1134		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
1135		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mAvatarService);
1136		AxolotlService axolotlService = account.getAxolotlService();
1137		if (axolotlService != null) {
1138			connection.addOnAdvancedStreamFeaturesAvailableListener(axolotlService);
1139		}
1140		return connection;
1141	}
1142
1143	public void sendChatState(Conversation conversation) {
1144		if (sendChatStates()) {
1145			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
1146			sendMessagePacket(conversation.getAccount(), packet);
1147		}
1148	}
1149
1150	private void sendFileMessage(final Message message, final boolean delay) {
1151		Log.d(Config.LOGTAG, "send file message");
1152		final Account account = message.getConversation().getAccount();
1153		if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1154				|| message.getConversation().getMode() == Conversation.MODE_MULTI) {
1155			mHttpConnectionManager.createNewUploadConnection(message, delay);
1156		} else {
1157			mJingleConnectionManager.createNewConnection(message);
1158		}
1159	}
1160
1161	public void sendMessage(final Message message) {
1162		sendMessage(message, false, false);
1163	}
1164
1165	private void sendMessage(final Message message, final boolean resend, final boolean delay) {
1166		final Account account = message.getConversation().getAccount();
1167		if (account.setShowErrorNotification(true)) {
1168			databaseBackend.updateAccount(account);
1169			mNotificationService.updateErrorNotification();
1170		}
1171		final Conversation conversation = message.getConversation();
1172		account.deactivateGracePeriod();
1173		MessagePacket packet = null;
1174		final boolean addToConversation = (conversation.getMode() != Conversation.MODE_MULTI
1175				|| !Patches.BAD_MUC_REFLECTION.contains(account.getServerIdentity()))
1176				&& !message.edited();
1177		boolean saveInDb = addToConversation;
1178		message.setStatus(Message.STATUS_WAITING);
1179
1180		if (account.isOnlineAndConnected()) {
1181			switch (message.getEncryption()) {
1182				case Message.ENCRYPTION_NONE:
1183					if (message.needsUploading()) {
1184						if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1185								|| conversation.getMode() == Conversation.MODE_MULTI
1186								|| message.fixCounterpart()) {
1187							this.sendFileMessage(message, delay);
1188						} else {
1189							break;
1190						}
1191					} else {
1192						packet = mMessageGenerator.generateChat(message);
1193					}
1194					break;
1195				case Message.ENCRYPTION_PGP:
1196				case Message.ENCRYPTION_DECRYPTED:
1197					if (message.needsUploading()) {
1198						if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1199								|| conversation.getMode() == Conversation.MODE_MULTI
1200								|| message.fixCounterpart()) {
1201							this.sendFileMessage(message, delay);
1202						} else {
1203							break;
1204						}
1205					} else {
1206						packet = mMessageGenerator.generatePgpChat(message);
1207					}
1208					break;
1209				case Message.ENCRYPTION_AXOLOTL:
1210					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1211					if (message.needsUploading()) {
1212						if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1213								|| conversation.getMode() == Conversation.MODE_MULTI
1214								|| message.fixCounterpart()) {
1215							this.sendFileMessage(message, delay);
1216						} else {
1217							break;
1218						}
1219					} else {
1220						XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
1221						if (axolotlMessage == null) {
1222							account.getAxolotlService().preparePayloadMessage(message, delay);
1223						} else {
1224							packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
1225						}
1226					}
1227					break;
1228
1229			}
1230			if (packet != null) {
1231				if (account.getXmppConnection().getFeatures().sm()
1232						|| (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
1233					message.setStatus(Message.STATUS_UNSEND);
1234				} else {
1235					message.setStatus(Message.STATUS_SEND);
1236				}
1237			}
1238		} else {
1239			switch (message.getEncryption()) {
1240				case Message.ENCRYPTION_DECRYPTED:
1241					if (!message.needsUploading()) {
1242						String pgpBody = message.getEncryptedBody();
1243						String decryptedBody = message.getBody();
1244						message.setBody(pgpBody); //TODO might throw NPE
1245						message.setEncryption(Message.ENCRYPTION_PGP);
1246						if (message.edited()) {
1247							message.setBody(decryptedBody);
1248							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1249							databaseBackend.updateMessage(message, message.getEditedId());
1250							updateConversationUi();
1251							return;
1252						} else {
1253							databaseBackend.createMessage(message);
1254							saveInDb = false;
1255							message.setBody(decryptedBody);
1256							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1257						}
1258					}
1259					break;
1260				case Message.ENCRYPTION_AXOLOTL:
1261					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1262					break;
1263			}
1264		}
1265
1266
1267		boolean mucMessage = conversation.getMode() == Conversation.MODE_MULTI && message.getType() != Message.TYPE_PRIVATE;
1268		if (mucMessage) {
1269			message.setCounterpart(conversation.getMucOptions().getSelf().getFullJid());
1270		}
1271
1272		if (resend) {
1273			if (packet != null && addToConversation) {
1274				if (account.getXmppConnection().getFeatures().sm() || mucMessage) {
1275					markMessage(message, Message.STATUS_UNSEND);
1276				} else {
1277					markMessage(message, Message.STATUS_SEND);
1278				}
1279			}
1280		} else {
1281			if (addToConversation) {
1282				conversation.add(message);
1283			}
1284			if (saveInDb) {
1285				databaseBackend.createMessage(message);
1286			} else if (message.edited()) {
1287				databaseBackend.updateMessage(message, message.getEditedId());
1288			}
1289			updateConversationUi();
1290		}
1291		if (packet != null) {
1292			if (delay) {
1293				mMessageGenerator.addDelay(packet, message.getTimeSent());
1294			}
1295			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1296				if (this.sendChatStates()) {
1297					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
1298				}
1299			}
1300			sendMessagePacket(account, packet);
1301		}
1302	}
1303
1304	private void sendUnsentMessages(final Conversation conversation) {
1305		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
1306
1307			@Override
1308			public void onMessageFound(Message message) {
1309				resendMessage(message, true);
1310			}
1311		});
1312	}
1313
1314	public void resendMessage(final Message message, final boolean delay) {
1315		sendMessage(message, true, delay);
1316	}
1317
1318	public void fetchRosterFromServer(final Account account) {
1319		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1320		if (!"".equals(account.getRosterVersion())) {
1321			Log.d(Config.LOGTAG, account.getJid().toBareJid()
1322					+ ": fetching roster version " + account.getRosterVersion());
1323		} else {
1324			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
1325		}
1326		iqPacket.query(Namespace.ROSTER).setAttribute("ver", account.getRosterVersion());
1327		sendIqPacket(account, iqPacket, mIqParser);
1328	}
1329
1330	public void fetchBookmarks(final Account account) {
1331		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1332		final Element query = iqPacket.query("jabber:iq:private");
1333		query.addChild("storage", "storage:bookmarks");
1334		final OnIqPacketReceived callback = new OnIqPacketReceived() {
1335
1336			@Override
1337			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1338				if (packet.getType() == IqPacket.TYPE.RESULT) {
1339					final Element query = packet.query();
1340					final HashMap<Jid, Bookmark> bookmarks = new HashMap<>();
1341					final Element storage = query.findChild("storage", "storage:bookmarks");
1342					final boolean autojoin = respectAutojoin();
1343					if (storage != null) {
1344						for (final Element item : storage.getChildren()) {
1345							if (item.getName().equals("conference")) {
1346								final Bookmark bookmark = Bookmark.parse(item, account);
1347								Bookmark old = bookmarks.put(bookmark.getJid(), bookmark);
1348								if (old != null && old.getBookmarkName() != null && bookmark.getBookmarkName() == null) {
1349									bookmark.setBookmarkName(old.getBookmarkName());
1350								}
1351								Conversation conversation = find(bookmark);
1352								if (conversation != null) {
1353									bookmark.setConversation(conversation);
1354								} else if (bookmark.autojoin() && bookmark.getJid() != null && autojoin) {
1355									conversation = findOrCreateConversation(account, bookmark.getJid(), true, true, false);
1356									bookmark.setConversation(conversation);
1357								}
1358							}
1359						}
1360					}
1361					account.setBookmarks(new CopyOnWriteArrayList<>(bookmarks.values()));
1362				} else {
1363					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not fetch bookmarks");
1364				}
1365			}
1366		};
1367		sendIqPacket(account, iqPacket, callback);
1368	}
1369
1370	public void pushBookmarks(Account account) {
1371		Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": pushing bookmarks");
1372		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
1373		Element query = iqPacket.query("jabber:iq:private");
1374		Element storage = query.addChild("storage", "storage:bookmarks");
1375		for (Bookmark bookmark : account.getBookmarks()) {
1376			storage.addChild(bookmark);
1377		}
1378		sendIqPacket(account, iqPacket, mDefaultIqHandler);
1379	}
1380
1381	private void restoreFromDatabase() {
1382		synchronized (this.conversations) {
1383			final Map<String, Account> accountLookupTable = new Hashtable<>();
1384			for (Account account : this.accounts) {
1385				accountLookupTable.put(account.getUuid(), account);
1386			}
1387			Log.d(Config.LOGTAG, "restoring conversations...");
1388			final long startTimeConversationsRestore = SystemClock.elapsedRealtime();
1389			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
1390			for (Iterator<Conversation> iterator = conversations.listIterator(); iterator.hasNext(); ) {
1391				Conversation conversation = iterator.next();
1392				Account account = accountLookupTable.get(conversation.getAccountUuid());
1393				if (account != null) {
1394					conversation.setAccount(account);
1395				} else {
1396					Log.e(Config.LOGTAG, "unable to restore Conversations with " + conversation.getJid());
1397					iterator.remove();
1398				}
1399			}
1400			long diffConversationsRestore = SystemClock.elapsedRealtime() - startTimeConversationsRestore;
1401			Log.d(Config.LOGTAG, "finished restoring conversations in " + diffConversationsRestore + "ms");
1402			Runnable runnable = new Runnable() {
1403				@Override
1404				public void run() {
1405					long deletionDate = getAutomaticMessageDeletionDate();
1406					mLastExpiryRun.set(SystemClock.elapsedRealtime());
1407					if (deletionDate > 0) {
1408						Log.d(Config.LOGTAG, "deleting messages that are older than " + AbstractGenerator.getTimestamp(deletionDate));
1409						databaseBackend.expireOldMessages(deletionDate);
1410					}
1411					Log.d(Config.LOGTAG, "restoring roster...");
1412					for (Account account : accounts) {
1413						databaseBackend.readRoster(account.getRoster());
1414						account.initAccountServices(XmppConnectionService.this); //roster needs to be loaded at this stage
1415					}
1416					getBitmapCache().evictAll();
1417					loadPhoneContacts();
1418					Log.d(Config.LOGTAG, "restoring messages...");
1419					final long startMessageRestore = SystemClock.elapsedRealtime();
1420					for (Conversation conversation : conversations) {
1421						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1422						checkDeletedFiles(conversation);
1423						conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
1424
1425							@Override
1426							public void onMessageFound(Message message) {
1427								markMessage(message, Message.STATUS_WAITING);
1428							}
1429						});
1430						conversation.findUnreadMessages(new Conversation.OnMessageFound() {
1431							@Override
1432							public void onMessageFound(Message message) {
1433								mNotificationService.pushFromBacklog(message);
1434							}
1435						});
1436					}
1437					mNotificationService.finishBacklog(false);
1438					restoredFromDatabaseLatch.countDown();
1439					final long diffMessageRestore = SystemClock.elapsedRealtime() - startMessageRestore;
1440					Log.d(Config.LOGTAG, "finished restoring messages in " + diffMessageRestore + "ms");
1441					updateConversationUi();
1442				}
1443			};
1444			mDatabaseReaderExecutor.execute(runnable); //will contain one write command (expiry) but that's fine
1445		}
1446	}
1447
1448	public void loadPhoneContacts() {
1449		mContactMergerExecutor.execute(new Runnable() {
1450			@Override
1451			public void run() {
1452				PhoneHelper.loadPhoneContacts(XmppConnectionService.this, new OnPhoneContactsLoadedListener() {
1453					@Override
1454					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
1455						Log.d(Config.LOGTAG, "start merging phone contacts with roster");
1456						for (Account account : accounts) {
1457							List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
1458							for (Bundle phoneContact : phoneContacts) {
1459								Jid jid;
1460								try {
1461									jid = Jid.fromString(phoneContact.getString("jid"));
1462								} catch (final InvalidJidException e) {
1463									continue;
1464								}
1465								final Contact contact = account.getRoster().getContact(jid);
1466								String systemAccount = phoneContact.getInt("phoneid")
1467										+ "#"
1468										+ phoneContact.getString("lookup");
1469								contact.setSystemAccount(systemAccount);
1470								boolean needsCacheClean = contact.setPhotoUri(phoneContact.getString("photouri"));
1471								needsCacheClean |= contact.setSystemName(phoneContact.getString("displayname"));
1472								if (needsCacheClean) {
1473									getAvatarService().clear(contact);
1474								}
1475								withSystemAccounts.remove(contact);
1476							}
1477							for (Contact contact : withSystemAccounts) {
1478								contact.setSystemAccount(null);
1479								boolean needsCacheClean = contact.setPhotoUri(null);
1480								needsCacheClean |= contact.setSystemName(null);
1481								if (needsCacheClean) {
1482									getAvatarService().clear(contact);
1483								}
1484							}
1485						}
1486						Log.d(Config.LOGTAG, "finished merging phone contacts");
1487						mShortcutService.refresh(mInitialAddressbookSyncCompleted.compareAndSet(false, true));
1488						updateAccountUi();
1489					}
1490				});
1491			}
1492		});
1493	}
1494
1495	public List<Conversation> getConversations() {
1496		return this.conversations;
1497	}
1498
1499	private void checkDeletedFiles(Conversation conversation) {
1500		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1501
1502			@Override
1503			public void onMessageFound(Message message) {
1504				if (!getFileBackend().isFileAvailable(message)) {
1505					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1506					final int s = message.getStatus();
1507					if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1508						markMessage(message, Message.STATUS_SEND_FAILED);
1509					}
1510				}
1511			}
1512		});
1513	}
1514
1515	private void markFileDeleted(final String path) {
1516		Log.d(Config.LOGTAG, "deleted file " + path);
1517		for (Conversation conversation : getConversations()) {
1518			conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1519				@Override
1520				public void onMessageFound(Message message) {
1521					DownloadableFile file = fileBackend.getFile(message);
1522					if (file.getAbsolutePath().equals(path)) {
1523						if (!file.exists()) {
1524							message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1525							final int s = message.getStatus();
1526							if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1527								markMessage(message, Message.STATUS_SEND_FAILED);
1528							} else {
1529								updateConversationUi();
1530							}
1531						} else {
1532							Log.d(Config.LOGTAG, "found matching message for file " + path + " but file still exists");
1533						}
1534					}
1535				}
1536			});
1537		}
1538	}
1539
1540	public void populateWithOrderedConversations(final List<Conversation> list) {
1541		populateWithOrderedConversations(list, true);
1542	}
1543
1544	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1545		list.clear();
1546		if (includeNoFileUpload) {
1547			list.addAll(getConversations());
1548		} else {
1549			for (Conversation conversation : getConversations()) {
1550				if (conversation.getMode() == Conversation.MODE_SINGLE
1551						|| conversation.getAccount().httpUploadAvailable()) {
1552					list.add(conversation);
1553				}
1554			}
1555		}
1556		try {
1557			Collections.sort(list);
1558		} catch (IllegalArgumentException e) {
1559			//ignore
1560		}
1561	}
1562
1563	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1564		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation, callback)) {
1565			return;
1566		} else if (timestamp == 0) {
1567			return;
1568		}
1569		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1570		final Runnable runnable = () -> {
1571			final Account account = conversation.getAccount();
1572			List<Message> messages = databaseBackend.getMessages(conversation, 50, timestamp);
1573			if (messages.size() > 0) {
1574				conversation.addAll(0, messages);
1575				checkDeletedFiles(conversation);
1576				callback.onMoreMessagesLoaded(messages.size(), conversation);
1577			} else if (conversation.hasMessagesLeftOnServer()
1578					&& account.isOnlineAndConnected()
1579					&& conversation.getLastClearHistory().getTimestamp() == 0) {
1580				final boolean mamAvailable;
1581				if (conversation.getMode() == Conversation.MODE_SINGLE) {
1582					mamAvailable = account.getXmppConnection().getFeatures().mam() && !conversation.getContact().isBlocked();
1583				} else {
1584					mamAvailable = conversation.getMucOptions().mamSupport();
1585				}
1586				if (mamAvailable) {
1587					MessageArchiveService.Query query = getMessageArchiveService().query(conversation, new MamReference(0), timestamp, false);
1588					if (query != null) {
1589						query.setCallback(callback);
1590						callback.informUser(R.string.fetching_history_from_server);
1591					} else {
1592						callback.informUser(R.string.not_fetching_history_retention_period);
1593					}
1594
1595				}
1596			}
1597		};
1598		mDatabaseReaderExecutor.execute(runnable);
1599	}
1600
1601	public List<Account> getAccounts() {
1602		return this.accounts;
1603	}
1604
1605	public List<Conversation> findAllConferencesWith(Contact contact) {
1606		ArrayList<Conversation> results = new ArrayList<>();
1607		for (Conversation conversation : conversations) {
1608			if (conversation.getMode() == Conversation.MODE_MULTI
1609					&& conversation.getMucOptions().isContactInRoom(contact)) {
1610				results.add(conversation);
1611			}
1612		}
1613		return results;
1614	}
1615
1616	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1617		for (final Conversation conversation : haystack) {
1618			if (conversation.getContact() == contact) {
1619				return conversation;
1620			}
1621		}
1622		return null;
1623	}
1624
1625	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1626		if (jid == null) {
1627			return null;
1628		}
1629		for (final Conversation conversation : haystack) {
1630			if ((account == null || conversation.getAccount() == account)
1631					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1632				return conversation;
1633			}
1634		}
1635		return null;
1636	}
1637
1638	public boolean isConversationsListEmpty(final Conversation ignore) {
1639		synchronized (this.conversations) {
1640			final int size = this.conversations.size();
1641			if (size == 0) {
1642				return true;
1643			} else if (size == 1) {
1644				return this.conversations.get(0) == ignore;
1645			} else {
1646				return false;
1647			}
1648		}
1649	}
1650
1651	public Conversation findOrCreateConversation(Account account, Jid jid, boolean muc, final boolean async) {
1652		return this.findOrCreateConversation(account, jid, muc, false, async);
1653	}
1654
1655	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final boolean async) {
1656		return this.findOrCreateConversation(account, jid, muc, joinAfterCreate, null, async);
1657	}
1658
1659	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final MessageArchiveService.Query query, final boolean async) {
1660		synchronized (this.conversations) {
1661			Conversation conversation = find(account, jid);
1662			if (conversation != null) {
1663				return conversation;
1664			}
1665			conversation = databaseBackend.findConversation(account, jid);
1666			final boolean loadMessagesFromDb;
1667			if (conversation != null) {
1668				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1669				conversation.setAccount(account);
1670				if (muc) {
1671					conversation.setMode(Conversation.MODE_MULTI);
1672					conversation.setContactJid(jid);
1673				} else {
1674					conversation.setMode(Conversation.MODE_SINGLE);
1675					conversation.setContactJid(jid.toBareJid());
1676				}
1677				databaseBackend.updateConversation(conversation);
1678				loadMessagesFromDb = conversation.messagesLoaded.compareAndSet(true, false);
1679			} else {
1680				String conversationName;
1681				Contact contact = account.getRoster().getContact(jid);
1682				if (contact != null) {
1683					conversationName = contact.getDisplayName();
1684				} else {
1685					conversationName = jid.getLocalpart();
1686				}
1687				if (muc) {
1688					conversation = new Conversation(conversationName, account, jid,
1689							Conversation.MODE_MULTI);
1690				} else {
1691					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1692							Conversation.MODE_SINGLE);
1693				}
1694				this.databaseBackend.createConversation(conversation);
1695				loadMessagesFromDb = false;
1696			}
1697			final Conversation c = conversation;
1698			final Runnable runnable = () -> {
1699				if (loadMessagesFromDb) {
1700					c.addAll(0, databaseBackend.getMessages(c, Config.PAGE_SIZE));
1701					updateConversationUi();
1702					c.messagesLoaded.set(true);
1703				}
1704				if (account.getXmppConnection() != null
1705						&& !c.getContact().isBlocked()
1706						&& account.getXmppConnection().getFeatures().mam()
1707						&& !muc) {
1708					if (query == null) {
1709						mMessageArchiveService.query(c);
1710					} else {
1711						if (query.getConversation() == null) {
1712							mMessageArchiveService.query(c, query.getStart(), query.isCatchup());
1713						}
1714					}
1715				}
1716				checkDeletedFiles(c);
1717				if (joinAfterCreate) {
1718					joinMuc(c);
1719				}
1720			};
1721			if (async) {
1722				mDatabaseReaderExecutor.execute(runnable);
1723			} else {
1724				runnable.run();
1725			}
1726			this.conversations.add(conversation);
1727			updateConversationUi();
1728			return conversation;
1729		}
1730	}
1731
1732	public void archiveConversation(Conversation conversation) {
1733		getNotificationService().clear(conversation);
1734		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1735		synchronized (this.conversations) {
1736			getMessageArchiveService().kill(conversation);
1737			if (conversation.getMode() == Conversation.MODE_MULTI) {
1738				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1739					Bookmark bookmark = conversation.getBookmark();
1740					if (bookmark != null && bookmark.autojoin() && respectAutojoin()) {
1741						bookmark.setAutojoin(false);
1742						pushBookmarks(bookmark.getAccount());
1743					}
1744				}
1745				leaveMuc(conversation);
1746			} else {
1747				if (conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1748					Log.d(Config.LOGTAG, "Canceling presence request from " + conversation.getJid().toString());
1749					sendPresencePacket(
1750							conversation.getAccount(),
1751							mPresenceGenerator.stopPresenceUpdatesTo(conversation.getContact())
1752					);
1753				}
1754			}
1755			updateConversation(conversation);
1756			this.conversations.remove(conversation);
1757			updateConversationUi();
1758		}
1759	}
1760
1761	public void createAccount(final Account account) {
1762		account.initAccountServices(this);
1763		databaseBackend.createAccount(account);
1764		this.accounts.add(account);
1765		this.reconnectAccountInBackground(account);
1766		updateAccountUi();
1767		syncEnabledAccountSetting();
1768		toggleForegroundService();
1769	}
1770
1771	private void syncEnabledAccountSetting() {
1772		getPreferences().edit().putBoolean(EventReceiver.SETTING_ENABLED_ACCOUNTS, hasEnabledAccounts()).apply();
1773	}
1774
1775	public void createAccountFromKey(final String alias, final OnAccountCreated callback) {
1776		new Thread(() -> {
1777			try {
1778				final X509Certificate[] chain = KeyChain.getCertificateChain(this, alias);
1779				final X509Certificate cert = chain != null && chain.length > 0 ? chain[0] : null;
1780				if (cert == null) {
1781					callback.informUser(R.string.unable_to_parse_certificate);
1782					return;
1783				}
1784				Pair<Jid, String> info = CryptoHelper.extractJidAndName(cert);
1785				if (info == null) {
1786					callback.informUser(R.string.certificate_does_not_contain_jid);
1787					return;
1788				}
1789				if (findAccountByJid(info.first) == null) {
1790					Account account = new Account(info.first, "");
1791					account.setPrivateKeyAlias(alias);
1792					account.setOption(Account.OPTION_DISABLED, true);
1793					account.setDisplayName(info.second);
1794					createAccount(account);
1795					callback.onAccountCreated(account);
1796					if (Config.X509_VERIFICATION) {
1797						try {
1798							getMemorizingTrustManager().getNonInteractive(account.getJid().getDomainpart()).checkClientTrusted(chain, "RSA");
1799						} catch (CertificateException e) {
1800							callback.informUser(R.string.certificate_chain_is_not_trusted);
1801						}
1802					}
1803				} else {
1804					callback.informUser(R.string.account_already_exists);
1805				}
1806			} catch (Exception e) {
1807				e.printStackTrace();
1808				callback.informUser(R.string.unable_to_parse_certificate);
1809			}
1810		}).start();
1811
1812	}
1813
1814	public void updateKeyInAccount(final Account account, final String alias) {
1815		Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": update key in account " + alias);
1816		try {
1817			X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1818			Log.d(Config.LOGTAG, account.getJid().toBareJid() + " loaded certificate chain");
1819			Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1820			if (info == null) {
1821				showErrorToastInUi(R.string.certificate_does_not_contain_jid);
1822				return;
1823			}
1824			if (account.getJid().toBareJid().equals(info.first)) {
1825				account.setPrivateKeyAlias(alias);
1826				account.setDisplayName(info.second);
1827				databaseBackend.updateAccount(account);
1828				if (Config.X509_VERIFICATION) {
1829					try {
1830						getMemorizingTrustManager().getNonInteractive().checkClientTrusted(chain, "RSA");
1831					} catch (CertificateException e) {
1832						showErrorToastInUi(R.string.certificate_chain_is_not_trusted);
1833					}
1834					account.getAxolotlService().regenerateKeys(true);
1835				}
1836			} else {
1837				showErrorToastInUi(R.string.jid_does_not_match_certificate);
1838			}
1839		} catch (Exception e) {
1840			e.printStackTrace();
1841		}
1842	}
1843
1844	public boolean updateAccount(final Account account) {
1845		if (databaseBackend.updateAccount(account)) {
1846			account.setShowErrorNotification(true);
1847			this.statusListener.onStatusChanged(account);
1848			databaseBackend.updateAccount(account);
1849			reconnectAccountInBackground(account);
1850			updateAccountUi();
1851			getNotificationService().updateErrorNotification();
1852			toggleForegroundService();
1853			syncEnabledAccountSetting();
1854			return true;
1855		} else {
1856			return false;
1857		}
1858	}
1859
1860	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1861		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1862		sendIqPacket(account, iq, new OnIqPacketReceived() {
1863			@Override
1864			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1865				if (packet.getType() == IqPacket.TYPE.RESULT) {
1866					account.setPassword(newPassword);
1867					account.setOption(Account.OPTION_MAGIC_CREATE, false);
1868					databaseBackend.updateAccount(account);
1869					callback.onPasswordChangeSucceeded();
1870				} else {
1871					callback.onPasswordChangeFailed();
1872				}
1873			}
1874		});
1875	}
1876
1877	public void deleteAccount(final Account account) {
1878		synchronized (this.conversations) {
1879			for (final Conversation conversation : conversations) {
1880				if (conversation.getAccount() == account) {
1881					if (conversation.getMode() == Conversation.MODE_MULTI) {
1882						leaveMuc(conversation);
1883					}
1884					conversations.remove(conversation);
1885				}
1886			}
1887			if (account.getXmppConnection() != null) {
1888				new Thread(() -> disconnect(account, true)).start();
1889			}
1890			final Runnable runnable = () -> {
1891				if (!databaseBackend.deleteAccount(account)) {
1892					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": unable to delete account");
1893				}
1894			};
1895			mDatabaseWriterExecutor.execute(runnable);
1896			this.accounts.remove(account);
1897			updateAccountUi();
1898			getNotificationService().updateErrorNotification();
1899			syncEnabledAccountSetting();
1900		}
1901	}
1902
1903	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1904		synchronized (this) {
1905			this.mLastActivity = System.currentTimeMillis();
1906			if (checkListeners()) {
1907				switchToForeground();
1908			}
1909			this.mOnConversationUpdate = listener;
1910			this.mNotificationService.setIsInForeground(true);
1911			if (this.convChangedListenerCount < 2) {
1912				this.convChangedListenerCount++;
1913			}
1914		}
1915	}
1916
1917	public void removeOnConversationListChangedListener() {
1918		synchronized (this) {
1919			this.convChangedListenerCount--;
1920			if (this.convChangedListenerCount <= 0) {
1921				this.convChangedListenerCount = 0;
1922				this.mOnConversationUpdate = null;
1923				this.mNotificationService.setIsInForeground(false);
1924				if (checkListeners()) {
1925					switchToBackground();
1926				}
1927			}
1928		}
1929	}
1930
1931	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1932		synchronized (this) {
1933			if (checkListeners()) {
1934				switchToForeground();
1935			}
1936			this.mOnShowErrorToast = onShowErrorToast;
1937			if (this.showErrorToastListenerCount < 2) {
1938				this.showErrorToastListenerCount++;
1939			}
1940		}
1941		this.mOnShowErrorToast = onShowErrorToast;
1942	}
1943
1944	public void removeOnShowErrorToastListener() {
1945		synchronized (this) {
1946			this.showErrorToastListenerCount--;
1947			if (this.showErrorToastListenerCount <= 0) {
1948				this.showErrorToastListenerCount = 0;
1949				this.mOnShowErrorToast = null;
1950				if (checkListeners()) {
1951					switchToBackground();
1952				}
1953			}
1954		}
1955	}
1956
1957	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1958		synchronized (this) {
1959			if (checkListeners()) {
1960				switchToForeground();
1961			}
1962			this.mOnAccountUpdate = listener;
1963			if (this.accountChangedListenerCount < 2) {
1964				this.accountChangedListenerCount++;
1965			}
1966		}
1967	}
1968
1969	public void removeOnAccountListChangedListener() {
1970		synchronized (this) {
1971			this.accountChangedListenerCount--;
1972			if (this.accountChangedListenerCount <= 0) {
1973				this.mOnAccountUpdate = null;
1974				this.accountChangedListenerCount = 0;
1975				if (checkListeners()) {
1976					switchToBackground();
1977				}
1978			}
1979		}
1980	}
1981
1982	public void setOnCaptchaRequestedListener(OnCaptchaRequested listener) {
1983		synchronized (this) {
1984			if (checkListeners()) {
1985				switchToForeground();
1986			}
1987			this.mOnCaptchaRequested = listener;
1988			if (this.captchaRequestedListenerCount < 2) {
1989				this.captchaRequestedListenerCount++;
1990			}
1991		}
1992	}
1993
1994	public void removeOnCaptchaRequestedListener() {
1995		synchronized (this) {
1996			this.captchaRequestedListenerCount--;
1997			if (this.captchaRequestedListenerCount <= 0) {
1998				this.mOnCaptchaRequested = null;
1999				this.captchaRequestedListenerCount = 0;
2000				if (checkListeners()) {
2001					switchToBackground();
2002				}
2003			}
2004		}
2005	}
2006
2007	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
2008		synchronized (this) {
2009			if (checkListeners()) {
2010				switchToForeground();
2011			}
2012			this.mOnRosterUpdate = listener;
2013			if (this.rosterChangedListenerCount < 2) {
2014				this.rosterChangedListenerCount++;
2015			}
2016		}
2017	}
2018
2019	public void removeOnRosterUpdateListener() {
2020		synchronized (this) {
2021			this.rosterChangedListenerCount--;
2022			if (this.rosterChangedListenerCount <= 0) {
2023				this.rosterChangedListenerCount = 0;
2024				this.mOnRosterUpdate = null;
2025				if (checkListeners()) {
2026					switchToBackground();
2027				}
2028			}
2029		}
2030	}
2031
2032	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
2033		synchronized (this) {
2034			if (checkListeners()) {
2035				switchToForeground();
2036			}
2037			this.mOnUpdateBlocklist = listener;
2038			if (this.updateBlocklistListenerCount < 2) {
2039				this.updateBlocklistListenerCount++;
2040			}
2041		}
2042	}
2043
2044	public void removeOnUpdateBlocklistListener() {
2045		synchronized (this) {
2046			this.updateBlocklistListenerCount--;
2047			if (this.updateBlocklistListenerCount <= 0) {
2048				this.updateBlocklistListenerCount = 0;
2049				this.mOnUpdateBlocklist = null;
2050				if (checkListeners()) {
2051					switchToBackground();
2052				}
2053			}
2054		}
2055	}
2056
2057	public void setOnKeyStatusUpdatedListener(final OnKeyStatusUpdated listener) {
2058		synchronized (this) {
2059			if (checkListeners()) {
2060				switchToForeground();
2061			}
2062			this.mOnKeyStatusUpdated = listener;
2063			if (this.keyStatusUpdatedListenerCount < 2) {
2064				this.keyStatusUpdatedListenerCount++;
2065			}
2066		}
2067	}
2068
2069	public void removeOnNewKeysAvailableListener() {
2070		synchronized (this) {
2071			this.keyStatusUpdatedListenerCount--;
2072			if (this.keyStatusUpdatedListenerCount <= 0) {
2073				this.keyStatusUpdatedListenerCount = 0;
2074				this.mOnKeyStatusUpdated = null;
2075				if (checkListeners()) {
2076					switchToBackground();
2077				}
2078			}
2079		}
2080	}
2081
2082	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
2083		synchronized (this) {
2084			if (checkListeners()) {
2085				switchToForeground();
2086			}
2087			this.mOnMucRosterUpdate = listener;
2088			if (this.mucRosterChangedListenerCount < 2) {
2089				this.mucRosterChangedListenerCount++;
2090			}
2091		}
2092	}
2093
2094	public void removeOnMucRosterUpdateListener() {
2095		synchronized (this) {
2096			this.mucRosterChangedListenerCount--;
2097			if (this.mucRosterChangedListenerCount <= 0) {
2098				this.mucRosterChangedListenerCount = 0;
2099				this.mOnMucRosterUpdate = null;
2100				if (checkListeners()) {
2101					switchToBackground();
2102				}
2103			}
2104		}
2105	}
2106
2107	public boolean checkListeners() {
2108		return (this.mOnAccountUpdate == null
2109				&& this.mOnConversationUpdate == null
2110				&& this.mOnRosterUpdate == null
2111				&& this.mOnCaptchaRequested == null
2112				&& this.mOnUpdateBlocklist == null
2113				&& this.mOnShowErrorToast == null
2114				&& this.mOnKeyStatusUpdated == null);
2115	}
2116
2117	private void switchToForeground() {
2118		final boolean broadcastLastActivity = broadcastLastActivity();
2119		for (Conversation conversation : getConversations()) {
2120			if (conversation.getMode() == Conversation.MODE_MULTI) {
2121				conversation.getMucOptions().resetChatState();
2122			} else {
2123				conversation.setIncomingChatState(Config.DEFAULT_CHATSTATE);
2124			}
2125		}
2126		for (Account account : getAccounts()) {
2127			if (account.getStatus() == Account.State.ONLINE) {
2128				account.deactivateGracePeriod();
2129				final XmppConnection connection = account.getXmppConnection();
2130				if (connection != null) {
2131					if (connection.getFeatures().csi()) {
2132						connection.sendActive();
2133					}
2134					if (broadcastLastActivity) {
2135						sendPresence(account, false); //send new presence but don't include idle because we are not
2136					}
2137				}
2138			}
2139		}
2140		Log.d(Config.LOGTAG, "app switched into foreground");
2141	}
2142
2143	private void switchToBackground() {
2144		final boolean broadcastLastActivity = broadcastLastActivity();
2145		for (Account account : getAccounts()) {
2146			if (account.getStatus() == Account.State.ONLINE) {
2147				XmppConnection connection = account.getXmppConnection();
2148				if (connection != null) {
2149					if (broadcastLastActivity) {
2150						sendPresence(account, true);
2151					}
2152					if (connection.getFeatures().csi()) {
2153						connection.sendInactive();
2154					}
2155				}
2156			}
2157		}
2158		this.mNotificationService.setIsInForeground(false);
2159		Log.d(Config.LOGTAG, "app switched into background");
2160	}
2161
2162	private void connectMultiModeConversations(Account account) {
2163		List<Conversation> conversations = getConversations();
2164		for (Conversation conversation : conversations) {
2165			if (conversation.getMode() == Conversation.MODE_MULTI && conversation.getAccount() == account) {
2166				joinMuc(conversation);
2167			}
2168		}
2169	}
2170
2171	public void joinMuc(Conversation conversation) {
2172		joinMuc(conversation, null, false);
2173	}
2174
2175	public void joinMuc(Conversation conversation, boolean followedInvite) {
2176		joinMuc(conversation, null, followedInvite);
2177	}
2178
2179	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined) {
2180		joinMuc(conversation, onConferenceJoined, false);
2181	}
2182
2183	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined, final boolean followedInvite) {
2184		Account account = conversation.getAccount();
2185		account.pendingConferenceJoins.remove(conversation);
2186		account.pendingConferenceLeaves.remove(conversation);
2187		if (account.getStatus() == Account.State.ONLINE) {
2188			sendPresencePacket(account, mPresenceGenerator.leave(conversation.getMucOptions()));
2189			conversation.resetMucOptions();
2190			if (onConferenceJoined != null) {
2191				conversation.getMucOptions().flagNoAutoPushConfiguration();
2192			}
2193			conversation.setHasMessagesLeftOnServer(false);
2194			fetchConferenceConfiguration(conversation, new OnConferenceConfigurationFetched() {
2195
2196				private void join(Conversation conversation) {
2197					Account account = conversation.getAccount();
2198					final MucOptions mucOptions = conversation.getMucOptions();
2199					final Jid joinJid = mucOptions.getSelf().getFullJid();
2200					Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
2201					PresencePacket packet = mPresenceGenerator.selfPresence(account, Presence.Status.ONLINE, mucOptions.nonanonymous() || onConferenceJoined != null);
2202					packet.setTo(joinJid);
2203					Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
2204					if (conversation.getMucOptions().getPassword() != null) {
2205						x.addChild("password").setContent(mucOptions.getPassword());
2206					}
2207
2208					if (mucOptions.mamSupport()) {
2209						// Use MAM instead of the limited muc history to get history
2210						x.addChild("history").setAttribute("maxchars", "0");
2211					} else {
2212						// Fallback to muc history
2213						x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted().getTimestamp()));
2214					}
2215					sendPresencePacket(account, packet);
2216					if (onConferenceJoined != null) {
2217						onConferenceJoined.onConferenceJoined(conversation);
2218					}
2219					if (!joinJid.equals(conversation.getJid())) {
2220						conversation.setContactJid(joinJid);
2221						databaseBackend.updateConversation(conversation);
2222					}
2223
2224					if (mucOptions.mamSupport()) {
2225						getMessageArchiveService().catchupMUC(conversation);
2226					}
2227					if (mucOptions.isPrivateAndNonAnonymous()) {
2228						fetchConferenceMembers(conversation);
2229						if (followedInvite && conversation.getBookmark() == null) {
2230							saveConversationAsBookmark(conversation, null);
2231						}
2232					}
2233					sendUnsentMessages(conversation);
2234				}
2235
2236				@Override
2237				public void onConferenceConfigurationFetched(Conversation conversation) {
2238					join(conversation);
2239				}
2240
2241				@Override
2242				public void onFetchFailed(final Conversation conversation, Element error) {
2243					if (error != null && "remote-server-not-found".equals(error.getName())) {
2244						conversation.getMucOptions().setError(MucOptions.Error.SERVER_NOT_FOUND);
2245						updateConversationUi();
2246					} else {
2247						join(conversation);
2248						fetchConferenceConfiguration(conversation);
2249					}
2250				}
2251			});
2252			updateConversationUi();
2253		} else {
2254			account.pendingConferenceJoins.add(conversation);
2255			conversation.resetMucOptions();
2256			conversation.setHasMessagesLeftOnServer(false);
2257			updateConversationUi();
2258		}
2259	}
2260
2261	private void fetchConferenceMembers(final Conversation conversation) {
2262		final Account account = conversation.getAccount();
2263		final AxolotlService axolotlService = account.getAxolotlService();
2264		final String[] affiliations = {"member", "admin", "owner"};
2265		OnIqPacketReceived callback = new OnIqPacketReceived() {
2266
2267			private int i = 0;
2268			private boolean success = true;
2269
2270			@Override
2271			public void onIqPacketReceived(Account account, IqPacket packet) {
2272
2273				Element query = packet.query("http://jabber.org/protocol/muc#admin");
2274				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2275					for (Element child : query.getChildren()) {
2276						if ("item".equals(child.getName())) {
2277							MucOptions.User user = AbstractParser.parseItem(conversation, child);
2278							if (!user.realJidMatchesAccount()) {
2279								boolean isNew = conversation.getMucOptions().updateUser(user);
2280								Contact contact = user.getContact();
2281								if (isNew
2282										&& user.getRealJid() != null
2283										&& (contact == null || !contact.mutualPresenceSubscription())
2284										&& axolotlService.hasEmptyDeviceList(user.getRealJid())) {
2285									axolotlService.fetchDeviceIds(user.getRealJid());
2286								}
2287							}
2288						}
2289					}
2290				} else {
2291					success = false;
2292					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not request affiliation " + affiliations[i] + " in " + conversation.getJid().toBareJid());
2293				}
2294				++i;
2295				if (i >= affiliations.length) {
2296					List<Jid> members = conversation.getMucOptions().getMembers();
2297					if (success) {
2298						List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
2299						boolean changed = false;
2300						for (ListIterator<Jid> iterator = cryptoTargets.listIterator(); iterator.hasNext(); ) {
2301							Jid jid = iterator.next();
2302							if (!members.contains(jid)) {
2303								iterator.remove();
2304								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": removed " + jid + " from crypto targets of " + conversation.getName());
2305								changed = true;
2306							}
2307						}
2308						if (changed) {
2309							conversation.setAcceptedCryptoTargets(cryptoTargets);
2310							updateConversation(conversation);
2311						}
2312					}
2313					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": retrieved members for " + conversation.getJid().toBareJid() + ": " + conversation.getMucOptions().getMembers());
2314					getAvatarService().clear(conversation);
2315					updateMucRosterUi();
2316					updateConversationUi();
2317				}
2318			}
2319		};
2320		for (String affiliation : affiliations) {
2321			sendIqPacket(account, mIqGenerator.queryAffiliation(conversation, affiliation), callback);
2322		}
2323		Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching members for " + conversation.getName());
2324	}
2325
2326	public void providePasswordForMuc(Conversation conversation, String password) {
2327		if (conversation.getMode() == Conversation.MODE_MULTI) {
2328			conversation.getMucOptions().setPassword(password);
2329			if (conversation.getBookmark() != null) {
2330				if (respectAutojoin()) {
2331					conversation.getBookmark().setAutojoin(true);
2332				}
2333				pushBookmarks(conversation.getAccount());
2334			}
2335			updateConversation(conversation);
2336			joinMuc(conversation);
2337		}
2338	}
2339
2340	private boolean hasEnabledAccounts() {
2341		for (Account account : this.accounts) {
2342			if (account.isEnabled()) {
2343				return true;
2344			}
2345		}
2346		return false;
2347	}
2348
2349	public void persistSelfNick(MucOptions.User self) {
2350		final Conversation conversation = self.getConversation();
2351		Jid full = self.getFullJid();
2352		if (!full.equals(conversation.getJid())) {
2353			Log.d(Config.LOGTAG,"nick changed. updating");
2354			conversation.setContactJid(full);
2355			databaseBackend.updateConversation(conversation);
2356		}
2357
2358		Bookmark bookmark = conversation.getBookmark();
2359		if (bookmark != null && !full.getResourcepart().equals(bookmark.getNick())) {
2360			bookmark.setNick(full.getResourcepart());
2361			pushBookmarks(bookmark.getAccount());
2362		}
2363	}
2364
2365	public boolean renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
2366		final MucOptions options = conversation.getMucOptions();
2367		final Jid joinJid = options.createJoinJid(nick);
2368		if (joinJid == null) {
2369			return false;
2370		}
2371		if (options.online()) {
2372			Account account = conversation.getAccount();
2373			options.setOnRenameListener(new OnRenameListener() {
2374
2375				@Override
2376				public void onSuccess() {
2377					callback.success(conversation);
2378				}
2379
2380				@Override
2381				public void onFailure() {
2382					callback.error(R.string.nick_in_use, conversation);
2383				}
2384			});
2385
2386			PresencePacket packet = new PresencePacket();
2387			packet.setTo(joinJid);
2388			packet.setFrom(conversation.getAccount().getJid());
2389
2390			String sig = account.getPgpSignature();
2391			if (sig != null) {
2392				packet.addChild("status").setContent("online");
2393				packet.addChild("x", "jabber:x:signed").setContent(sig);
2394			}
2395			sendPresencePacket(account, packet);
2396		} else {
2397			conversation.setContactJid(joinJid);
2398			databaseBackend.updateConversation(conversation);
2399			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
2400				Bookmark bookmark = conversation.getBookmark();
2401				if (bookmark != null) {
2402					bookmark.setNick(nick);
2403					pushBookmarks(bookmark.getAccount());
2404				}
2405				joinMuc(conversation);
2406			}
2407		}
2408		return true;
2409	}
2410
2411	public void leaveMuc(Conversation conversation) {
2412		leaveMuc(conversation, false);
2413	}
2414
2415	private void leaveMuc(Conversation conversation, boolean now) {
2416		Account account = conversation.getAccount();
2417		account.pendingConferenceJoins.remove(conversation);
2418		account.pendingConferenceLeaves.remove(conversation);
2419		if (account.getStatus() == Account.State.ONLINE || now) {
2420			sendPresencePacket(conversation.getAccount(), mPresenceGenerator.leave(conversation.getMucOptions()));
2421			conversation.getMucOptions().setOffline();
2422			Bookmark bookmark = conversation.getBookmark();
2423			if (bookmark != null) {
2424				bookmark.setConversation(null);
2425			}
2426			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": leaving muc " + conversation.getJid());
2427		} else {
2428			account.pendingConferenceLeaves.add(conversation);
2429		}
2430	}
2431
2432	public String findConferenceServer(final Account account) {
2433		String server;
2434		if (account.getXmppConnection() != null) {
2435			server = account.getXmppConnection().getMucServer();
2436			if (server != null) {
2437				return server;
2438			}
2439		}
2440		for (Account other : getAccounts()) {
2441			if (other != account && other.getXmppConnection() != null) {
2442				server = other.getXmppConnection().getMucServer();
2443				if (server != null) {
2444					return server;
2445				}
2446			}
2447		}
2448		return null;
2449	}
2450
2451	public boolean createAdhocConference(final Account account,
2452	                                     final String subject,
2453	                                     final Iterable<Jid> jids,
2454	                                     final UiCallback<Conversation> callback) {
2455		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
2456		if (account.getStatus() == Account.State.ONLINE) {
2457			try {
2458				String server = findConferenceServer(account);
2459				if (server == null) {
2460					if (callback != null) {
2461						callback.error(R.string.no_conference_server_found, null);
2462					}
2463					return false;
2464				}
2465				final Jid jid = Jid.fromParts(new BigInteger(64, getRNG()).toString(Character.MAX_RADIX), server, null);
2466				final Conversation conversation = findOrCreateConversation(account, jid, true, false, true);
2467				joinMuc(conversation, new OnConferenceJoined() {
2468					@Override
2469					public void onConferenceJoined(final Conversation conversation) {
2470						pushConferenceConfiguration(conversation, IqGenerator.defaultRoomConfiguration(), new OnConfigurationPushed() {
2471							@Override
2472							public void onPushSucceeded() {
2473								if (subject != null && !subject.trim().isEmpty()) {
2474									pushSubjectToConference(conversation, subject.trim());
2475								}
2476								for (Jid invite : jids) {
2477									invite(conversation, invite);
2478								}
2479								if (account.countPresences() > 1) {
2480									directInvite(conversation, account.getJid().toBareJid());
2481								}
2482								saveConversationAsBookmark(conversation, subject);
2483								if (callback != null) {
2484									callback.success(conversation);
2485								}
2486							}
2487
2488							@Override
2489							public void onPushFailed() {
2490								archiveConversation(conversation);
2491								if (callback != null) {
2492									callback.error(R.string.conference_creation_failed, conversation);
2493								}
2494							}
2495						});
2496					}
2497				});
2498				return true;
2499			} catch (InvalidJidException e) {
2500				if (callback != null) {
2501					callback.error(R.string.conference_creation_failed, null);
2502				}
2503				return false;
2504			}
2505		} else {
2506			if (callback != null) {
2507				callback.error(R.string.not_connected_try_again, null);
2508			}
2509			return false;
2510		}
2511	}
2512
2513	public void fetchConferenceConfiguration(final Conversation conversation) {
2514		fetchConferenceConfiguration(conversation, null);
2515	}
2516
2517	public void fetchConferenceConfiguration(final Conversation conversation, final OnConferenceConfigurationFetched callback) {
2518		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2519		request.setTo(conversation.getJid().toBareJid());
2520		request.query("http://jabber.org/protocol/disco#info");
2521		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2522			@Override
2523			public void onIqPacketReceived(Account account, IqPacket packet) {
2524				Element query = packet.findChild("query", "http://jabber.org/protocol/disco#info");
2525				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2526					ArrayList<String> features = new ArrayList<>();
2527					for (Element child : query.getChildren()) {
2528						if (child != null && child.getName().equals("feature")) {
2529							String var = child.getAttribute("var");
2530							if (var != null) {
2531								features.add(var);
2532							}
2533						}
2534					}
2535					Element form = query.findChild("x", Namespace.DATA);
2536					if (form != null) {
2537						conversation.getMucOptions().updateFormData(Data.parse(form));
2538					}
2539					conversation.getMucOptions().updateFeatures(features);
2540					if (callback != null) {
2541						callback.onConferenceConfigurationFetched(conversation);
2542					}
2543					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetched muc configuration for " + conversation.getJid().toBareJid() + " - " + features.toString());
2544					updateConversationUi();
2545				} else if (packet.getType() == IqPacket.TYPE.ERROR) {
2546					if (callback != null) {
2547						callback.onFetchFailed(conversation, packet.getError());
2548					}
2549				}
2550			}
2551		});
2552	}
2553
2554	public void pushNodeConfiguration(Account account, final String node, final Bundle options, final OnConfigurationPushed callback) {
2555		pushNodeConfiguration(account, account.getJid().toBareJid(), node, options, callback);
2556	}
2557
2558	public void pushNodeConfiguration(Account account, final Jid jid, final String node, final Bundle options, final OnConfigurationPushed callback) {
2559		sendIqPacket(account, mIqGenerator.requestPubsubConfiguration(jid, node), new OnIqPacketReceived() {
2560			@Override
2561			public void onIqPacketReceived(Account account, IqPacket packet) {
2562				if (packet.getType() == IqPacket.TYPE.RESULT) {
2563					Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub#owner");
2564					Element configuration = pubsub == null ? null : pubsub.findChild("configure");
2565					Element x = configuration == null ? null : configuration.findChild("x", Namespace.DATA);
2566					if (x != null) {
2567						Data data = Data.parse(x);
2568						data.submit(options);
2569						sendIqPacket(account, mIqGenerator.publishPubsubConfiguration(jid, node, data), new OnIqPacketReceived() {
2570							@Override
2571							public void onIqPacketReceived(Account account, IqPacket packet) {
2572								if (packet.getType() == IqPacket.TYPE.RESULT && callback != null) {
2573									callback.onPushSucceeded();
2574								} else {
2575									Log.d(Config.LOGTAG, packet.toString());
2576								}
2577							}
2578						});
2579					} else if (callback != null) {
2580						callback.onPushFailed();
2581					}
2582				} else if (callback != null) {
2583					callback.onPushFailed();
2584				}
2585			}
2586		});
2587	}
2588
2589	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConfigurationPushed callback) {
2590		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2591		request.setTo(conversation.getJid().toBareJid());
2592		request.query("http://jabber.org/protocol/muc#owner");
2593		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2594			@Override
2595			public void onIqPacketReceived(Account account, IqPacket packet) {
2596				if (packet.getType() == IqPacket.TYPE.RESULT) {
2597					Data data = Data.parse(packet.query().findChild("x", Namespace.DATA));
2598					data.submit(options);
2599					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
2600					set.setTo(conversation.getJid().toBareJid());
2601					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
2602					sendIqPacket(account, set, new OnIqPacketReceived() {
2603						@Override
2604						public void onIqPacketReceived(Account account, IqPacket packet) {
2605							if (callback != null) {
2606								if (packet.getType() == IqPacket.TYPE.RESULT) {
2607									callback.onPushSucceeded();
2608								} else {
2609									callback.onPushFailed();
2610								}
2611							}
2612						}
2613					});
2614				} else {
2615					if (callback != null) {
2616						callback.onPushFailed();
2617					}
2618				}
2619			}
2620		});
2621	}
2622
2623	public void pushSubjectToConference(final Conversation conference, final String subject) {
2624		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
2625		this.sendMessagePacket(conference.getAccount(), packet);
2626		final MucOptions mucOptions = conference.getMucOptions();
2627		final MucOptions.User self = mucOptions.getSelf();
2628		if (self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
2629			Bundle options = new Bundle();
2630			options.putString("muc#roomconfig_persistentroom", "1");
2631			options.putString("muc#roomconfig_roomname", subject);
2632			this.pushConferenceConfiguration(conference, options, null);
2633		}
2634	}
2635
2636	public void changeAffiliationInConference(final Conversation conference, Jid user, final MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
2637		final Jid jid = user.toBareJid();
2638		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
2639		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2640			@Override
2641			public void onIqPacketReceived(Account account, IqPacket packet) {
2642				if (packet.getType() == IqPacket.TYPE.RESULT) {
2643					conference.getMucOptions().changeAffiliation(jid, affiliation);
2644					getAvatarService().clear(conference);
2645					callback.onAffiliationChangedSuccessful(jid);
2646				} else {
2647					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
2648				}
2649			}
2650		});
2651	}
2652
2653	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
2654		List<Jid> jids = new ArrayList<>();
2655		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
2656			if (user.getAffiliation() == before && user.getRealJid() != null) {
2657				jids.add(user.getRealJid());
2658			}
2659		}
2660		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
2661		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
2662	}
2663
2664	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
2665		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
2666		Log.d(Config.LOGTAG, request.toString());
2667		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2668			@Override
2669			public void onIqPacketReceived(Account account, IqPacket packet) {
2670				Log.d(Config.LOGTAG, packet.toString());
2671				if (packet.getType() == IqPacket.TYPE.RESULT) {
2672					callback.onRoleChangedSuccessful(nick);
2673				} else {
2674					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
2675				}
2676			}
2677		});
2678	}
2679
2680	private void disconnect(Account account, boolean force) {
2681		if ((account.getStatus() == Account.State.ONLINE)
2682				|| (account.getStatus() == Account.State.DISABLED)) {
2683			final XmppConnection connection = account.getXmppConnection();
2684			if (!force) {
2685				List<Conversation> conversations = getConversations();
2686				for (Conversation conversation : conversations) {
2687					if (conversation.getAccount() == account) {
2688						if (conversation.getMode() == Conversation.MODE_MULTI) {
2689							leaveMuc(conversation, true);
2690						}
2691					}
2692				}
2693				sendOfflinePresence(account);
2694			}
2695			connection.disconnect(force);
2696		}
2697	}
2698
2699	@Override
2700	public IBinder onBind(Intent intent) {
2701		return mBinder;
2702	}
2703
2704	public void updateMessage(Message message) {
2705		databaseBackend.updateMessage(message);
2706		updateConversationUi();
2707	}
2708
2709	public void updateMessage(Message message, String uuid) {
2710		databaseBackend.updateMessage(message, uuid);
2711		updateConversationUi();
2712	}
2713
2714	protected void syncDirtyContacts(Account account) {
2715		for (Contact contact : account.getRoster().getContacts()) {
2716			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
2717				pushContactToServer(contact);
2718			}
2719			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
2720				deleteContactOnServer(contact);
2721			}
2722		}
2723	}
2724
2725	public void createContact(Contact contact, boolean autoGrant) {
2726		if (autoGrant) {
2727			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
2728			contact.setOption(Contact.Options.ASKING);
2729		}
2730		pushContactToServer(contact);
2731	}
2732
2733	public void pushContactToServer(final Contact contact) {
2734		contact.resetOption(Contact.Options.DIRTY_DELETE);
2735		contact.setOption(Contact.Options.DIRTY_PUSH);
2736		final Account account = contact.getAccount();
2737		if (account.getStatus() == Account.State.ONLINE) {
2738			final boolean ask = contact.getOption(Contact.Options.ASKING);
2739			final boolean sendUpdates = contact
2740					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
2741					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
2742			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2743			iq.query(Namespace.ROSTER).addChild(contact.asElement());
2744			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2745			if (sendUpdates) {
2746				sendPresencePacket(account,
2747						mPresenceGenerator.sendPresenceUpdatesTo(contact));
2748			}
2749			if (ask) {
2750				sendPresencePacket(account,
2751						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
2752			}
2753		}
2754	}
2755
2756	public void publishAvatar(final Account account, final Uri image, final UiCallback<Avatar> callback) {
2757		new Thread(() -> {
2758			final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
2759			final int size = Config.AVATAR_SIZE;
2760			final Avatar avatar = getFileBackend().getPepAvatar(image, size, format);
2761			if (avatar != null) {
2762				if (!getFileBackend().save(avatar)) {
2763					callback.error(R.string.error_saving_avatar, avatar);
2764					return;
2765				}
2766				publishAvatar(account, avatar, callback);
2767			} else {
2768				callback.error(R.string.error_publish_avatar_converting, null);
2769			}
2770		}).start();
2771
2772	}
2773
2774	public void publishAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2775		IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
2776		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2777
2778			@Override
2779			public void onIqPacketReceived(Account account, IqPacket result) {
2780				if (result.getType() == IqPacket.TYPE.RESULT) {
2781					final IqPacket packet = XmppConnectionService.this.mIqGenerator.publishAvatarMetadata(avatar);
2782					sendIqPacket(account, packet, new OnIqPacketReceived() {
2783						@Override
2784						public void onIqPacketReceived(Account account, IqPacket result) {
2785							if (result.getType() == IqPacket.TYPE.RESULT) {
2786								if (account.setAvatar(avatar.getFilename())) {
2787									getAvatarService().clear(account);
2788									databaseBackend.updateAccount(account);
2789								}
2790								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": published avatar " + (avatar.size / 1024) + "KiB");
2791								if (callback != null) {
2792									callback.success(avatar);
2793								}
2794							} else {
2795								if (callback != null) {
2796									callback.error(R.string.error_publish_avatar_server_reject, avatar);
2797								}
2798							}
2799						}
2800					});
2801				} else {
2802					Element error = result.findChild("error");
2803					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": server rejected avatar " + (avatar.size / 1024) + "KiB " + (error != null ? error.toString() : ""));
2804					if (callback != null) {
2805						callback.error(R.string.error_publish_avatar_server_reject, avatar);
2806					}
2807				}
2808			}
2809		});
2810	}
2811
2812	public void republishAvatarIfNeeded(Account account) {
2813		if (account.getAxolotlService().isPepBroken()) {
2814			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": skipping republication of avatar because pep is broken");
2815			return;
2816		}
2817		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2818		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2819
2820			private Avatar parseAvatar(IqPacket packet) {
2821				Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
2822				if (pubsub != null) {
2823					Element items = pubsub.findChild("items");
2824					if (items != null) {
2825						return Avatar.parseMetadata(items);
2826					}
2827				}
2828				return null;
2829			}
2830
2831			private boolean errorIsItemNotFound(IqPacket packet) {
2832				Element error = packet.findChild("error");
2833				return packet.getType() == IqPacket.TYPE.ERROR
2834						&& error != null
2835						&& error.hasChild("item-not-found");
2836			}
2837
2838			@Override
2839			public void onIqPacketReceived(Account account, IqPacket packet) {
2840				if (packet.getType() == IqPacket.TYPE.RESULT || errorIsItemNotFound(packet)) {
2841					Avatar serverAvatar = parseAvatar(packet);
2842					if (serverAvatar == null && account.getAvatar() != null) {
2843						Avatar avatar = fileBackend.getStoredPepAvatar(account.getAvatar());
2844						if (avatar != null) {
2845							Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": avatar on server was null. republishing");
2846							publishAvatar(account, fileBackend.getStoredPepAvatar(account.getAvatar()), null);
2847						} else {
2848							Log.e(Config.LOGTAG, account.getJid().toBareJid() + ": error rereading avatar");
2849						}
2850					}
2851				}
2852			}
2853		});
2854	}
2855
2856	public void fetchAvatar(Account account, Avatar avatar) {
2857		fetchAvatar(account, avatar, null);
2858	}
2859
2860	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2861		final String KEY = generateFetchKey(account, avatar);
2862		synchronized (this.mInProgressAvatarFetches) {
2863			if (!this.mInProgressAvatarFetches.contains(KEY)) {
2864				switch (avatar.origin) {
2865					case PEP:
2866						this.mInProgressAvatarFetches.add(KEY);
2867						fetchAvatarPep(account, avatar, callback);
2868						break;
2869					case VCARD:
2870						this.mInProgressAvatarFetches.add(KEY);
2871						fetchAvatarVcard(account, avatar, callback);
2872						break;
2873				}
2874			}
2875		}
2876	}
2877
2878	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2879		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
2880		sendIqPacket(account, packet, new OnIqPacketReceived() {
2881
2882			@Override
2883			public void onIqPacketReceived(Account account, IqPacket result) {
2884				synchronized (mInProgressAvatarFetches) {
2885					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2886				}
2887				final String ERROR = account.getJid().toBareJid()
2888						+ ": fetching avatar for " + avatar.owner + " failed ";
2889				if (result.getType() == IqPacket.TYPE.RESULT) {
2890					avatar.image = mIqParser.avatarData(result);
2891					if (avatar.image != null) {
2892						if (getFileBackend().save(avatar)) {
2893							if (account.getJid().toBareJid().equals(avatar.owner)) {
2894								if (account.setAvatar(avatar.getFilename())) {
2895									databaseBackend.updateAccount(account);
2896								}
2897								getAvatarService().clear(account);
2898								updateConversationUi();
2899								updateAccountUi();
2900							} else {
2901								Contact contact = account.getRoster()
2902										.getContact(avatar.owner);
2903								contact.setAvatar(avatar);
2904								getAvatarService().clear(contact);
2905								updateConversationUi();
2906								updateRosterUi();
2907							}
2908							if (callback != null) {
2909								callback.success(avatar);
2910							}
2911							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2912									+ ": successfully fetched pep avatar for " + avatar.owner);
2913							return;
2914						}
2915					} else {
2916
2917						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
2918					}
2919				} else {
2920					Element error = result.findChild("error");
2921					if (error == null) {
2922						Log.d(Config.LOGTAG, ERROR + "(server error)");
2923					} else {
2924						Log.d(Config.LOGTAG, ERROR + error.toString());
2925					}
2926				}
2927				if (callback != null) {
2928					callback.error(0, null);
2929				}
2930
2931			}
2932		});
2933	}
2934
2935	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2936		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2937		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2938			@Override
2939			public void onIqPacketReceived(Account account, IqPacket packet) {
2940				synchronized (mInProgressAvatarFetches) {
2941					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2942				}
2943				if (packet.getType() == IqPacket.TYPE.RESULT) {
2944					Element vCard = packet.findChild("vCard", "vcard-temp");
2945					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2946					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2947					if (image != null) {
2948						avatar.image = image;
2949						if (getFileBackend().save(avatar)) {
2950							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2951									+ ": successfully fetched vCard avatar for " + avatar.owner);
2952							if (avatar.owner.isBareJid()) {
2953								if (account.getJid().toBareJid().equals(avatar.owner) && account.getAvatar() == null) {
2954									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": had no avatar. replacing with vcard");
2955									account.setAvatar(avatar.getFilename());
2956									databaseBackend.updateAccount(account);
2957									getAvatarService().clear(account);
2958									updateAccountUi();
2959								} else {
2960									Contact contact = account.getRoster().getContact(avatar.owner);
2961									contact.setAvatar(avatar);
2962									getAvatarService().clear(contact);
2963									updateRosterUi();
2964								}
2965								updateConversationUi();
2966							} else {
2967								Conversation conversation = find(account, avatar.owner.toBareJid());
2968								if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
2969									MucOptions.User user = conversation.getMucOptions().findUserByFullJid(avatar.owner);
2970									if (user != null) {
2971										if (user.setAvatar(avatar)) {
2972											getAvatarService().clear(user);
2973											updateConversationUi();
2974											updateMucRosterUi();
2975										}
2976									}
2977								}
2978							}
2979						}
2980					}
2981				}
2982			}
2983		});
2984	}
2985
2986	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
2987		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2988		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2989
2990			@Override
2991			public void onIqPacketReceived(Account account, IqPacket packet) {
2992				if (packet.getType() == IqPacket.TYPE.RESULT) {
2993					Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
2994					if (pubsub != null) {
2995						Element items = pubsub.findChild("items");
2996						if (items != null) {
2997							Avatar avatar = Avatar.parseMetadata(items);
2998							if (avatar != null) {
2999								avatar.owner = account.getJid().toBareJid();
3000								if (fileBackend.isAvatarCached(avatar)) {
3001									if (account.setAvatar(avatar.getFilename())) {
3002										databaseBackend.updateAccount(account);
3003									}
3004									getAvatarService().clear(account);
3005									callback.success(avatar);
3006								} else {
3007									fetchAvatarPep(account, avatar, callback);
3008								}
3009								return;
3010							}
3011						}
3012					}
3013				}
3014				callback.error(0, null);
3015			}
3016		});
3017	}
3018
3019	public void deleteContactOnServer(Contact contact) {
3020		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
3021		contact.resetOption(Contact.Options.DIRTY_PUSH);
3022		contact.setOption(Contact.Options.DIRTY_DELETE);
3023		Account account = contact.getAccount();
3024		if (account.getStatus() == Account.State.ONLINE) {
3025			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
3026			Element item = iq.query(Namespace.ROSTER).addChild("item");
3027			item.setAttribute("jid", contact.getJid().toString());
3028			item.setAttribute("subscription", "remove");
3029			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
3030		}
3031	}
3032
3033	public void updateConversation(final Conversation conversation) {
3034		mDatabaseWriterExecutor.execute(new Runnable() {
3035			@Override
3036			public void run() {
3037				databaseBackend.updateConversation(conversation);
3038			}
3039		});
3040	}
3041
3042	private void reconnectAccount(final Account account, final boolean force, final boolean interactive) {
3043		synchronized (account) {
3044			XmppConnection connection = account.getXmppConnection();
3045			if (connection == null) {
3046				connection = createConnection(account);
3047				account.setXmppConnection(connection);
3048			}
3049			boolean hasInternet = hasInternetConnection();
3050			if (account.isEnabled() && hasInternet) {
3051				if (!force) {
3052					disconnect(account, false);
3053				}
3054				Thread thread = new Thread(connection);
3055				connection.setInteractive(interactive);
3056				connection.prepareNewConnection();
3057				connection.interrupt();
3058				thread.start();
3059				scheduleWakeUpCall(Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
3060			} else {
3061				disconnect(account, force || account.getTrueStatus().isError() || !hasInternet);
3062				account.getRoster().clearPresences();
3063				connection.resetEverything();
3064				final AxolotlService axolotlService = account.getAxolotlService();
3065				if (axolotlService != null) {
3066					axolotlService.resetBrokenness();
3067				}
3068				if (!hasInternet) {
3069					account.setStatus(Account.State.NO_INTERNET);
3070				}
3071			}
3072		}
3073	}
3074
3075	public void reconnectAccountInBackground(final Account account) {
3076		new Thread(new Runnable() {
3077			@Override
3078			public void run() {
3079				reconnectAccount(account, false, true);
3080			}
3081		}).start();
3082	}
3083
3084	public void invite(Conversation conversation, Jid contact) {
3085		Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": inviting " + contact + " to " + conversation.getJid().toBareJid());
3086		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
3087		sendMessagePacket(conversation.getAccount(), packet);
3088	}
3089
3090	public void directInvite(Conversation conversation, Jid jid) {
3091		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
3092		sendMessagePacket(conversation.getAccount(), packet);
3093	}
3094
3095	public void resetSendingToWaiting(Account account) {
3096		for (Conversation conversation : getConversations()) {
3097			if (conversation.getAccount() == account) {
3098				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
3099
3100					@Override
3101					public void onMessageFound(Message message) {
3102						markMessage(message, Message.STATUS_WAITING);
3103					}
3104				});
3105			}
3106		}
3107	}
3108
3109	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
3110		return markMessage(account, recipient, uuid, status, null);
3111	}
3112
3113	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status, String errorMessage) {
3114		if (uuid == null) {
3115			return null;
3116		}
3117		for (Conversation conversation : getConversations()) {
3118			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
3119				final Message message = conversation.findSentMessageWithUuidOrRemoteId(uuid);
3120				if (message != null) {
3121					markMessage(message, status, errorMessage);
3122				}
3123				return message;
3124			}
3125		}
3126		return null;
3127	}
3128
3129	public boolean markMessage(Conversation conversation, String uuid, int status, String serverMessageId) {
3130		if (uuid == null) {
3131			return false;
3132		} else {
3133			Message message = conversation.findSentMessageWithUuid(uuid);
3134			if (message != null) {
3135				if (message.getServerMsgId() == null) {
3136					message.setServerMsgId(serverMessageId);
3137				}
3138				markMessage(message, status);
3139				return true;
3140			} else {
3141				return false;
3142			}
3143		}
3144	}
3145
3146	public void markMessage(Message message, int status) {
3147		markMessage(message, status, null);
3148	}
3149
3150
3151	public void markMessage(Message message, int status, String errorMessage) {
3152		if (status == Message.STATUS_SEND_FAILED
3153				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
3154				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
3155			return;
3156		}
3157		message.setErrorMessage(errorMessage);
3158		message.setStatus(status);
3159		databaseBackend.updateMessage(message);
3160		updateConversationUi();
3161	}
3162
3163	private SharedPreferences getPreferences() {
3164		return PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
3165	}
3166
3167	public long getAutomaticMessageDeletionDate() {
3168		final long timeout = getLongPreference(SettingsActivity.AUTOMATIC_MESSAGE_DELETION, R.integer.automatic_message_deletion);
3169		return timeout == 0 ? timeout : (System.currentTimeMillis() - (timeout * 1000));
3170	}
3171
3172	public long getLongPreference(String name, @IntegerRes int res) {
3173		long defaultValue = getResources().getInteger(res);
3174		try {
3175			return Long.parseLong(getPreferences().getString(name, String.valueOf(defaultValue)));
3176		} catch (NumberFormatException e) {
3177			return defaultValue;
3178		}
3179	}
3180
3181	public boolean getBooleanPreference(String name, @BoolRes int res) {
3182		return getPreferences().getBoolean(name, getResources().getBoolean(res));
3183	}
3184
3185	public boolean confirmMessages() {
3186		return getBooleanPreference("confirm_messages", R.bool.confirm_messages);
3187	}
3188
3189	public boolean allowMessageCorrection() {
3190		return getBooleanPreference("allow_message_correction", R.bool.allow_message_correction);
3191	}
3192
3193	public boolean sendChatStates() {
3194		return getBooleanPreference("chat_states", R.bool.chat_states);
3195	}
3196
3197	private boolean respectAutojoin() {
3198		return getBooleanPreference("autojoin", R.bool.autojoin);
3199	}
3200
3201	public boolean indicateReceived() {
3202		return getBooleanPreference("indicate_received", R.bool.indicate_received);
3203	}
3204
3205	public boolean useTorToConnect() {
3206		return Config.FORCE_ORBOT || getBooleanPreference("use_tor", R.bool.use_tor);
3207	}
3208
3209	public boolean showExtendedConnectionOptions() {
3210		return getBooleanPreference("show_connection_options", R.bool.show_connection_options);
3211	}
3212
3213	public boolean broadcastLastActivity() {
3214		return getBooleanPreference(SettingsActivity.BROADCAST_LAST_ACTIVITY, R.bool.last_activity);
3215	}
3216
3217	public int unreadCount() {
3218		int count = 0;
3219		for (Conversation conversation : getConversations()) {
3220			count += conversation.unreadCount();
3221		}
3222		return count;
3223	}
3224
3225
3226	public void showErrorToastInUi(int resId) {
3227		if (mOnShowErrorToast != null) {
3228			mOnShowErrorToast.onShowErrorToast(resId);
3229		}
3230	}
3231
3232	public void updateConversationUi() {
3233		if (mOnConversationUpdate != null) {
3234			mOnConversationUpdate.onConversationUpdate();
3235		}
3236	}
3237
3238	public void updateAccountUi() {
3239		if (mOnAccountUpdate != null) {
3240			mOnAccountUpdate.onAccountUpdate();
3241		}
3242	}
3243
3244	public void updateRosterUi() {
3245		if (mOnRosterUpdate != null) {
3246			mOnRosterUpdate.onRosterUpdate();
3247		}
3248	}
3249
3250	public boolean displayCaptchaRequest(Account account, String id, Data data, Bitmap captcha) {
3251		if (mOnCaptchaRequested != null) {
3252			DisplayMetrics metrics = getApplicationContext().getResources().getDisplayMetrics();
3253			Bitmap scaled = Bitmap.createScaledBitmap(captcha, (int) (captcha.getWidth() * metrics.scaledDensity),
3254					(int) (captcha.getHeight() * metrics.scaledDensity), false);
3255
3256			mOnCaptchaRequested.onCaptchaRequested(account, id, data, scaled);
3257			return true;
3258		}
3259		return false;
3260	}
3261
3262	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
3263		if (mOnUpdateBlocklist != null) {
3264			mOnUpdateBlocklist.OnUpdateBlocklist(status);
3265		}
3266	}
3267
3268	public void updateMucRosterUi() {
3269		if (mOnMucRosterUpdate != null) {
3270			mOnMucRosterUpdate.onMucRosterUpdate();
3271		}
3272	}
3273
3274	public void keyStatusUpdated(AxolotlService.FetchStatus report) {
3275		if (mOnKeyStatusUpdated != null) {
3276			mOnKeyStatusUpdated.onKeyStatusUpdated(report);
3277		}
3278	}
3279
3280	public Account findAccountByJid(final Jid accountJid) {
3281		for (Account account : this.accounts) {
3282			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
3283				return account;
3284			}
3285		}
3286		return null;
3287	}
3288
3289	public Conversation findConversationByUuid(String uuid) {
3290		for (Conversation conversation : getConversations()) {
3291			if (conversation.getUuid().equals(uuid)) {
3292				return conversation;
3293			}
3294		}
3295		return null;
3296	}
3297
3298	public boolean markRead(final Conversation conversation) {
3299		return markRead(conversation, true);
3300	}
3301
3302	public boolean markRead(final Conversation conversation, boolean clear) {
3303		if (clear) {
3304			mNotificationService.clear(conversation);
3305		}
3306		final List<Message> readMessages = conversation.markRead();
3307		if (readMessages.size() > 0) {
3308			Runnable runnable = new Runnable() {
3309				@Override
3310				public void run() {
3311					for (Message message : readMessages) {
3312						databaseBackend.updateMessage(message);
3313					}
3314				}
3315			};
3316			mDatabaseWriterExecutor.execute(runnable);
3317			updateUnreadCountBadge();
3318			return true;
3319		} else {
3320			return false;
3321		}
3322	}
3323
3324	public synchronized void updateUnreadCountBadge() {
3325		int count = unreadCount();
3326		if (unreadCount != count) {
3327			Log.d(Config.LOGTAG, "update unread count to " + count);
3328			if (count > 0) {
3329				ShortcutBadger.applyCount(getApplicationContext(), count);
3330			} else {
3331				ShortcutBadger.removeCount(getApplicationContext());
3332			}
3333			unreadCount = count;
3334		}
3335	}
3336
3337	public void sendReadMarker(final Conversation conversation) {
3338		final boolean isPrivateAndNonAnonymousMuc = conversation.getMode() == Conversation.MODE_MULTI && conversation.isPrivateAndNonAnonymous();
3339		final Message markable = conversation.getLatestMarkableMessage(isPrivateAndNonAnonymousMuc);
3340		if (this.markRead(conversation)) {
3341			updateConversationUi();
3342		}
3343		if (confirmMessages()
3344				&& markable != null
3345				&& (markable.trusted() || isPrivateAndNonAnonymousMuc)
3346				&& markable.getRemoteMsgId() != null) {
3347			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
3348			Account account = conversation.getAccount();
3349			final Jid to = markable.getCounterpart();
3350			final boolean groupChat = conversation.getMode() == Conversation.MODE_MULTI;
3351			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId(), markable.getCounterpart(), groupChat);
3352			this.sendMessagePacket(conversation.getAccount(), packet);
3353		}
3354	}
3355
3356	public SecureRandom getRNG() {
3357		return this.mRandom;
3358	}
3359
3360	public MemorizingTrustManager getMemorizingTrustManager() {
3361		return this.mMemorizingTrustManager;
3362	}
3363
3364	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
3365		this.mMemorizingTrustManager = trustManager;
3366	}
3367
3368	public void updateMemorizingTrustmanager() {
3369		final MemorizingTrustManager tm;
3370		final boolean dontTrustSystemCAs = getBooleanPreference("dont_trust_system_cas", R.bool.dont_trust_system_cas);
3371		if (dontTrustSystemCAs) {
3372			tm = new MemorizingTrustManager(getApplicationContext(), null);
3373		} else {
3374			tm = new MemorizingTrustManager(getApplicationContext());
3375		}
3376		setMemorizingTrustManager(tm);
3377	}
3378
3379	public PowerManager getPowerManager() {
3380		return this.pm;
3381	}
3382
3383	public LruCache<String, Bitmap> getBitmapCache() {
3384		return this.mBitmapCache;
3385	}
3386
3387	public void syncRosterToDisk(final Account account) {
3388		Runnable runnable = new Runnable() {
3389
3390			@Override
3391			public void run() {
3392				databaseBackend.writeRoster(account.getRoster());
3393			}
3394		};
3395		mDatabaseWriterExecutor.execute(runnable);
3396
3397	}
3398
3399	public List<String> getKnownHosts() {
3400		final List<String> hosts = new ArrayList<>();
3401		for (final Account account : getAccounts()) {
3402			if (!hosts.contains(account.getServer().toString())) {
3403				hosts.add(account.getServer().toString());
3404			}
3405			for (final Contact contact : account.getRoster().getContacts()) {
3406				if (contact.showInRoster()) {
3407					final String server = contact.getServer().toString();
3408					if (server != null && !hosts.contains(server)) {
3409						hosts.add(server);
3410					}
3411				}
3412			}
3413		}
3414		if (Config.DOMAIN_LOCK != null && !hosts.contains(Config.DOMAIN_LOCK)) {
3415			hosts.add(Config.DOMAIN_LOCK);
3416		}
3417		if (Config.MAGIC_CREATE_DOMAIN != null && !hosts.contains(Config.MAGIC_CREATE_DOMAIN)) {
3418			hosts.add(Config.MAGIC_CREATE_DOMAIN);
3419		}
3420		return hosts;
3421	}
3422
3423	public List<String> getKnownConferenceHosts() {
3424		final ArrayList<String> mucServers = new ArrayList<>();
3425		for (final Account account : accounts) {
3426			if (account.getXmppConnection() != null) {
3427				final String server = account.getXmppConnection().getMucServer();
3428				if (server != null && !mucServers.contains(server)) {
3429					mucServers.add(server);
3430				}
3431				for (Bookmark bookmark : account.getBookmarks()) {
3432					final Jid jid = bookmark.getJid();
3433					final String s = jid == null ? null : jid.getDomainpart();
3434					if (s != null && !mucServers.contains(s)) {
3435						mucServers.add(s);
3436					}
3437				}
3438			}
3439		}
3440		return mucServers;
3441	}
3442
3443	public void sendMessagePacket(Account account, MessagePacket packet) {
3444		XmppConnection connection = account.getXmppConnection();
3445		if (connection != null) {
3446			connection.sendMessagePacket(packet);
3447		}
3448	}
3449
3450	public void sendPresencePacket(Account account, PresencePacket packet) {
3451		XmppConnection connection = account.getXmppConnection();
3452		if (connection != null) {
3453			connection.sendPresencePacket(packet);
3454		}
3455	}
3456
3457	public void sendCreateAccountWithCaptchaPacket(Account account, String id, Data data) {
3458		final XmppConnection connection = account.getXmppConnection();
3459		if (connection != null) {
3460			IqPacket request = mIqGenerator.generateCreateAccountWithCaptcha(account, id, data);
3461			connection.sendUnmodifiedIqPacket(request, connection.registrationResponseListener,true);
3462		}
3463	}
3464
3465	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
3466		final XmppConnection connection = account.getXmppConnection();
3467		if (connection != null) {
3468			connection.sendIqPacket(packet, callback);
3469		}
3470	}
3471
3472	public void sendPresence(final Account account) {
3473		sendPresence(account, checkListeners() && broadcastLastActivity());
3474	}
3475
3476	private void sendPresence(final Account account, final boolean includeIdleTimestamp) {
3477		PresencePacket packet;
3478		if (manuallyChangePresence()) {
3479			packet = mPresenceGenerator.selfPresence(account, account.getPresenceStatus());
3480			String message = account.getPresenceStatusMessage();
3481			if (message != null && !message.isEmpty()) {
3482				packet.addChild(new Element("status").setContent(message));
3483			}
3484		} else {
3485			packet = mPresenceGenerator.selfPresence(account, getTargetPresence());
3486		}
3487		if (mLastActivity > 0 && includeIdleTimestamp) {
3488			long since = Math.min(mLastActivity, System.currentTimeMillis()); //don't send future dates
3489			packet.addChild("idle", Namespace.IDLE).setAttribute("since", AbstractGenerator.getTimestamp(since));
3490		}
3491		sendPresencePacket(account, packet);
3492	}
3493
3494	private void deactivateGracePeriod() {
3495		for (Account account : getAccounts()) {
3496			account.deactivateGracePeriod();
3497		}
3498	}
3499
3500	public void refreshAllPresences() {
3501		boolean includeIdleTimestamp = checkListeners() && broadcastLastActivity();
3502		for (Account account : getAccounts()) {
3503			if (account.isEnabled()) {
3504				sendPresence(account, includeIdleTimestamp);
3505			}
3506		}
3507	}
3508
3509	private void refreshAllGcmTokens() {
3510		for (Account account : getAccounts()) {
3511			if (account.isOnlineAndConnected() && mPushManagementService.available(account)) {
3512				mPushManagementService.registerPushTokenOnServer(account);
3513			}
3514		}
3515	}
3516
3517	private void sendOfflinePresence(final Account account) {
3518		Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": sending offline presence");
3519		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
3520	}
3521
3522	public MessageGenerator getMessageGenerator() {
3523		return this.mMessageGenerator;
3524	}
3525
3526	public PresenceGenerator getPresenceGenerator() {
3527		return this.mPresenceGenerator;
3528	}
3529
3530	public IqGenerator getIqGenerator() {
3531		return this.mIqGenerator;
3532	}
3533
3534	public IqParser getIqParser() {
3535		return this.mIqParser;
3536	}
3537
3538	public JingleConnectionManager getJingleConnectionManager() {
3539		return this.mJingleConnectionManager;
3540	}
3541
3542	public MessageArchiveService getMessageArchiveService() {
3543		return this.mMessageArchiveService;
3544	}
3545
3546	public List<Contact> findContacts(Jid jid, String accountJid) {
3547		ArrayList<Contact> contacts = new ArrayList<>();
3548		for (Account account : getAccounts()) {
3549			if ((account.isEnabled() || accountJid != null)
3550					&& (accountJid == null || accountJid.equals(account.getJid().toBareJid().toString()))) {
3551				Contact contact = account.getRoster().getContactFromRoster(jid);
3552				if (contact != null) {
3553					contacts.add(contact);
3554				}
3555			}
3556		}
3557		return contacts;
3558	}
3559
3560	public Conversation findFirstMuc(Jid jid) {
3561		for (Conversation conversation : getConversations()) {
3562			if (conversation.getAccount().isEnabled() && conversation.getJid().toBareJid().equals(jid.toBareJid()) && conversation.getMode() == Conversation.MODE_MULTI) {
3563				return conversation;
3564			}
3565		}
3566		return null;
3567	}
3568
3569	public NotificationService getNotificationService() {
3570		return this.mNotificationService;
3571	}
3572
3573	public HttpConnectionManager getHttpConnectionManager() {
3574		return this.mHttpConnectionManager;
3575	}
3576
3577	public void resendFailedMessages(final Message message) {
3578		final Collection<Message> messages = new ArrayList<>();
3579		Message current = message;
3580		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
3581			messages.add(current);
3582			if (current.mergeable(current.next())) {
3583				current = current.next();
3584			} else {
3585				break;
3586			}
3587		}
3588		for (final Message msg : messages) {
3589			msg.setTime(System.currentTimeMillis());
3590			markMessage(msg, Message.STATUS_WAITING);
3591			this.resendMessage(msg, false);
3592		}
3593	}
3594
3595	public void clearConversationHistory(final Conversation conversation) {
3596		final long clearDate;
3597		final String reference;
3598		if (conversation.countMessages() > 0) {
3599			Message latestMessage = conversation.getLatestMessage();
3600			clearDate = latestMessage.getTimeSent() + 1000;
3601			reference = latestMessage.getServerMsgId();
3602		} else {
3603			clearDate = System.currentTimeMillis();
3604			reference = null;
3605		}
3606		conversation.clearMessages();
3607		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
3608		conversation.setLastClearHistory(clearDate, reference);
3609		Runnable runnable = new Runnable() {
3610			@Override
3611			public void run() {
3612				databaseBackend.deleteMessagesInConversation(conversation);
3613				databaseBackend.updateConversation(conversation);
3614			}
3615		};
3616		mDatabaseWriterExecutor.execute(runnable);
3617	}
3618
3619	public boolean sendBlockRequest(final Blockable blockable, boolean reportSpam) {
3620		if (blockable != null && blockable.getBlockedJid() != null) {
3621			final Jid jid = blockable.getBlockedJid();
3622			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid, reportSpam), new OnIqPacketReceived() {
3623
3624				@Override
3625				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3626					if (packet.getType() == IqPacket.TYPE.RESULT) {
3627						account.getBlocklist().add(jid);
3628						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
3629					}
3630				}
3631			});
3632			if (removeBlockedConversations(blockable.getAccount(), jid)) {
3633				updateConversationUi();
3634				return true;
3635			} else {
3636				return false;
3637			}
3638		} else {
3639			return false;
3640		}
3641	}
3642
3643	public boolean removeBlockedConversations(final Account account, final Jid blockedJid) {
3644		boolean removed = false;
3645		synchronized (this.conversations) {
3646			boolean domainJid = blockedJid.isDomainJid();
3647			for (Conversation conversation : this.conversations) {
3648				boolean jidMatches = (domainJid && blockedJid.getDomainpart().equals(conversation.getJid().getDomainpart()))
3649						|| blockedJid.equals(conversation.getJid().toBareJid());
3650				if (conversation.getAccount() == account
3651						&& conversation.getMode() == Conversation.MODE_SINGLE
3652						&& jidMatches) {
3653					this.conversations.remove(conversation);
3654					markRead(conversation);
3655					conversation.setStatus(Conversation.STATUS_ARCHIVED);
3656					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": archiving conversation " + conversation.getJid().toBareJid() + " because jid was blocked");
3657					updateConversation(conversation);
3658					removed = true;
3659				}
3660			}
3661		}
3662		return removed;
3663	}
3664
3665	public void sendUnblockRequest(final Blockable blockable) {
3666		if (blockable != null && blockable.getJid() != null) {
3667			final Jid jid = blockable.getBlockedJid();
3668			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
3669				@Override
3670				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3671					if (packet.getType() == IqPacket.TYPE.RESULT) {
3672						account.getBlocklist().remove(jid);
3673						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
3674					}
3675				}
3676			});
3677		}
3678	}
3679
3680	public void publishDisplayName(Account account) {
3681		String displayName = account.getDisplayName();
3682		if (displayName != null && !displayName.isEmpty()) {
3683			IqPacket publish = mIqGenerator.publishNick(displayName);
3684			sendIqPacket(account, publish, new OnIqPacketReceived() {
3685				@Override
3686				public void onIqPacketReceived(Account account, IqPacket packet) {
3687					if (packet.getType() == IqPacket.TYPE.ERROR) {
3688						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not publish nick");
3689					}
3690				}
3691			});
3692		}
3693	}
3694
3695	public ServiceDiscoveryResult getCachedServiceDiscoveryResult(Pair<String, String> key) {
3696		ServiceDiscoveryResult result = discoCache.get(key);
3697		if (result != null) {
3698			return result;
3699		} else {
3700			result = databaseBackend.findDiscoveryResult(key.first, key.second);
3701			if (result != null) {
3702				discoCache.put(key, result);
3703			}
3704			return result;
3705		}
3706	}
3707
3708	public void fetchCaps(Account account, final Jid jid, final Presence presence) {
3709		final Pair<String, String> key = new Pair<>(presence.getHash(), presence.getVer());
3710		ServiceDiscoveryResult disco = getCachedServiceDiscoveryResult(key);
3711		if (disco != null) {
3712			presence.setServiceDiscoveryResult(disco);
3713		} else {
3714			if (!account.inProgressDiscoFetches.contains(key)) {
3715				account.inProgressDiscoFetches.add(key);
3716				IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3717				request.setTo(jid);
3718				request.query("http://jabber.org/protocol/disco#info");
3719				Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": making disco request for " + key.second + " to " + jid);
3720				sendIqPacket(account, request, new OnIqPacketReceived() {
3721					@Override
3722					public void onIqPacketReceived(Account account, IqPacket discoPacket) {
3723						if (discoPacket.getType() == IqPacket.TYPE.RESULT) {
3724							ServiceDiscoveryResult disco = new ServiceDiscoveryResult(discoPacket);
3725							if (presence.getVer().equals(disco.getVer())) {
3726								databaseBackend.insertDiscoveryResult(disco);
3727								injectServiceDiscorveryResult(account.getRoster(), presence.getHash(), presence.getVer(), disco);
3728							} else {
3729								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": mismatch in caps for contact " + jid + " " + presence.getVer() + " vs " + disco.getVer());
3730							}
3731						}
3732						account.inProgressDiscoFetches.remove(key);
3733					}
3734				});
3735			}
3736		}
3737	}
3738
3739	private void injectServiceDiscorveryResult(Roster roster, String hash, String ver, ServiceDiscoveryResult disco) {
3740		for (Contact contact : roster.getContacts()) {
3741			for (Presence presence : contact.getPresences().getPresences().values()) {
3742				if (hash.equals(presence.getHash()) && ver.equals(presence.getVer())) {
3743					presence.setServiceDiscoveryResult(disco);
3744				}
3745			}
3746		}
3747	}
3748
3749	public void fetchMamPreferences(Account account, final OnMamPreferencesFetched callback) {
3750		final boolean legacy = account.getXmppConnection().getFeatures().mamLegacy();
3751		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3752		request.addChild("prefs", legacy ? Namespace.MAM_LEGACY : Namespace.MAM);
3753		sendIqPacket(account, request, new OnIqPacketReceived() {
3754			@Override
3755			public void onIqPacketReceived(Account account, IqPacket packet) {
3756				Element prefs = packet.findChild("prefs", legacy ? Namespace.MAM_LEGACY : Namespace.MAM);
3757				if (packet.getType() == IqPacket.TYPE.RESULT && prefs != null) {
3758					callback.onPreferencesFetched(prefs);
3759				} else {
3760					callback.onPreferencesFetchFailed();
3761				}
3762			}
3763		});
3764	}
3765
3766	public PushManagementService getPushManagementService() {
3767		return mPushManagementService;
3768	}
3769
3770	public Account getPendingAccount() {
3771		Account pending = null;
3772		for (Account account : getAccounts()) {
3773			if (!account.isOptionSet(Account.OPTION_LOGGED_IN_SUCCESSFULLY)) {
3774				pending = account;
3775			} else {
3776				return null;
3777			}
3778		}
3779		return pending;
3780	}
3781
3782	public void changeStatus(Account account, Presence.Status status, String statusMessage, boolean send) {
3783		if (!statusMessage.isEmpty()) {
3784			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3785		}
3786		changeStatusReal(account, status, statusMessage, send);
3787	}
3788
3789	private void changeStatusReal(Account account, Presence.Status status, String statusMessage, boolean send) {
3790		account.setPresenceStatus(status);
3791		account.setPresenceStatusMessage(statusMessage);
3792		databaseBackend.updateAccount(account);
3793		if (account.isEnabled() && send) {
3794			sendPresence(account);
3795		}
3796	}
3797
3798	public void changeStatus(Presence.Status status, String statusMessage) {
3799		if (!statusMessage.isEmpty()) {
3800			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3801		}
3802		for (Account account : getAccounts()) {
3803			changeStatusReal(account, status, statusMessage, true);
3804		}
3805	}
3806
3807	public List<PresenceTemplate> getPresenceTemplates(Account account) {
3808		List<PresenceTemplate> templates = databaseBackend.getPresenceTemplates();
3809		for (PresenceTemplate template : account.getSelfContact().getPresences().asTemplates()) {
3810			if (!templates.contains(template)) {
3811				templates.add(0, template);
3812			}
3813		}
3814		return templates;
3815	}
3816
3817	public void saveConversationAsBookmark(Conversation conversation, String name) {
3818		Account account = conversation.getAccount();
3819		Bookmark bookmark = new Bookmark(account, conversation.getJid().toBareJid());
3820		if (!conversation.getJid().isBareJid()) {
3821			bookmark.setNick(conversation.getJid().getResourcepart());
3822		}
3823		if (name != null && !name.trim().isEmpty()) {
3824			bookmark.setBookmarkName(name.trim());
3825		}
3826		bookmark.setAutojoin(getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin)));
3827		account.getBookmarks().add(bookmark);
3828		pushBookmarks(account);
3829		bookmark.setConversation(conversation);
3830	}
3831
3832	public boolean verifyFingerprints(Contact contact, List<XmppUri.Fingerprint> fingerprints) {
3833		boolean performedVerification = false;
3834		final AxolotlService axolotlService = contact.getAccount().getAxolotlService();
3835		for (XmppUri.Fingerprint fp : fingerprints) {
3836			if (fp.type == XmppUri.FingerprintType.OMEMO) {
3837				String fingerprint = "05" + fp.fingerprint.replaceAll("\\s", "");
3838				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3839				if (fingerprintStatus != null) {
3840					if (!fingerprintStatus.isVerified()) {
3841						performedVerification = true;
3842						axolotlService.setFingerprintTrust(fingerprint, fingerprintStatus.toVerified());
3843					}
3844				} else {
3845					axolotlService.preVerifyFingerprint(contact, fingerprint);
3846				}
3847			}
3848		}
3849		return performedVerification;
3850	}
3851
3852	public boolean verifyFingerprints(Account account, List<XmppUri.Fingerprint> fingerprints) {
3853		final AxolotlService axolotlService = account.getAxolotlService();
3854		boolean verifiedSomething = false;
3855		for (XmppUri.Fingerprint fp : fingerprints) {
3856			if (fp.type == XmppUri.FingerprintType.OMEMO) {
3857				String fingerprint = "05" + fp.fingerprint.replaceAll("\\s", "");
3858				Log.d(Config.LOGTAG, "trying to verify own fp=" + fingerprint);
3859				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3860				if (fingerprintStatus != null) {
3861					if (!fingerprintStatus.isVerified()) {
3862						axolotlService.setFingerprintTrust(fingerprint, fingerprintStatus.toVerified());
3863						verifiedSomething = true;
3864					}
3865				} else {
3866					axolotlService.preVerifyFingerprint(account, fingerprint);
3867					verifiedSomething = true;
3868				}
3869			}
3870		}
3871		return verifiedSomething;
3872	}
3873
3874	public boolean blindTrustBeforeVerification() {
3875		return getBooleanPreference(SettingsActivity.BLIND_TRUST_BEFORE_VERIFICATION, R.bool.btbv);
3876	}
3877
3878	public ShortcutService getShortcutService() {
3879		return mShortcutService;
3880	}
3881
3882	public interface OnMamPreferencesFetched {
3883		void onPreferencesFetched(Element prefs);
3884
3885		void onPreferencesFetchFailed();
3886	}
3887
3888	public void pushMamPreferences(Account account, Element prefs) {
3889		IqPacket set = new IqPacket(IqPacket.TYPE.SET);
3890		set.addChild(prefs);
3891		sendIqPacket(account, set, null);
3892	}
3893
3894	public interface OnAccountCreated {
3895		void onAccountCreated(Account account);
3896
3897		void informUser(int r);
3898	}
3899
3900	public interface OnMoreMessagesLoaded {
3901		void onMoreMessagesLoaded(int count, Conversation conversation);
3902
3903		void informUser(int r);
3904	}
3905
3906	public interface OnAccountPasswordChanged {
3907		void onPasswordChangeSucceeded();
3908
3909		void onPasswordChangeFailed();
3910	}
3911
3912	public interface OnAffiliationChanged {
3913		void onAffiliationChangedSuccessful(Jid jid);
3914
3915		void onAffiliationChangeFailed(Jid jid, int resId);
3916	}
3917
3918	public interface OnRoleChanged {
3919		void onRoleChangedSuccessful(String nick);
3920
3921		void onRoleChangeFailed(String nick, int resid);
3922	}
3923
3924	public interface OnConversationUpdate {
3925		void onConversationUpdate();
3926	}
3927
3928	public interface OnAccountUpdate {
3929		void onAccountUpdate();
3930	}
3931
3932	public interface OnCaptchaRequested {
3933		void onCaptchaRequested(Account account,
3934		                        String id,
3935		                        Data data,
3936		                        Bitmap captcha);
3937	}
3938
3939	public interface OnRosterUpdate {
3940		void onRosterUpdate();
3941	}
3942
3943	public interface OnMucRosterUpdate {
3944		void onMucRosterUpdate();
3945	}
3946
3947	public interface OnConferenceConfigurationFetched {
3948		void onConferenceConfigurationFetched(Conversation conversation);
3949
3950		void onFetchFailed(Conversation conversation, Element error);
3951	}
3952
3953	public interface OnConferenceJoined {
3954		void onConferenceJoined(Conversation conversation);
3955	}
3956
3957	public interface OnConfigurationPushed {
3958		void onPushSucceeded();
3959
3960		void onPushFailed();
3961	}
3962
3963	public interface OnShowErrorToast {
3964		void onShowErrorToast(int resId);
3965	}
3966
3967	public class XmppConnectionBinder extends Binder {
3968		public XmppConnectionService getService() {
3969			return XmppConnectionService.this;
3970		}
3971	}
3972}