XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import android.annotation.SuppressLint;
   4import android.app.AlarmManager;
   5import android.app.PendingIntent;
   6import android.app.Service;
   7import android.content.Context;
   8import android.content.Intent;
   9import android.content.SharedPreferences;
  10import android.database.ContentObserver;
  11import android.graphics.Bitmap;
  12import android.net.ConnectivityManager;
  13import android.net.NetworkInfo;
  14import android.net.Uri;
  15import android.os.Binder;
  16import android.os.Bundle;
  17import android.os.FileObserver;
  18import android.os.IBinder;
  19import android.os.Looper;
  20import android.os.PowerManager;
  21import android.os.PowerManager.WakeLock;
  22import android.os.SystemClock;
  23import android.preference.PreferenceManager;
  24import android.provider.ContactsContract;
  25import android.util.Log;
  26import android.util.LruCache;
  27
  28import net.java.otr4j.OtrException;
  29import net.java.otr4j.session.Session;
  30import net.java.otr4j.session.SessionID;
  31import net.java.otr4j.session.SessionImpl;
  32import net.java.otr4j.session.SessionStatus;
  33
  34import org.openintents.openpgp.util.OpenPgpApi;
  35import org.openintents.openpgp.util.OpenPgpServiceConnection;
  36
  37import java.math.BigInteger;
  38import java.security.SecureRandom;
  39import java.util.ArrayList;
  40import java.util.Arrays;
  41import java.util.Collection;
  42import java.util.Collections;
  43import java.util.Comparator;
  44import java.util.Hashtable;
  45import java.util.Iterator;
  46import java.util.List;
  47import java.util.Locale;
  48import java.util.Map;
  49import java.util.concurrent.CopyOnWriteArrayList;
  50
  51import de.duenndns.ssl.MemorizingTrustManager;
  52import eu.siacs.conversations.Config;
  53import eu.siacs.conversations.R;
  54import eu.siacs.conversations.crypto.PgpEngine;
  55import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  56import eu.siacs.conversations.entities.Account;
  57import eu.siacs.conversations.entities.Blockable;
  58import eu.siacs.conversations.entities.Bookmark;
  59import eu.siacs.conversations.entities.Contact;
  60import eu.siacs.conversations.entities.Conversation;
  61import eu.siacs.conversations.entities.Message;
  62import eu.siacs.conversations.entities.MucOptions;
  63import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  64import eu.siacs.conversations.entities.Transferable;
  65import eu.siacs.conversations.entities.TransferablePlaceholder;
  66import eu.siacs.conversations.generator.IqGenerator;
  67import eu.siacs.conversations.generator.MessageGenerator;
  68import eu.siacs.conversations.generator.PresenceGenerator;
  69import eu.siacs.conversations.http.HttpConnectionManager;
  70import eu.siacs.conversations.parser.IqParser;
  71import eu.siacs.conversations.parser.MessageParser;
  72import eu.siacs.conversations.parser.PresenceParser;
  73import eu.siacs.conversations.persistance.DatabaseBackend;
  74import eu.siacs.conversations.persistance.FileBackend;
  75import eu.siacs.conversations.ui.UiCallback;
  76import eu.siacs.conversations.utils.CryptoHelper;
  77import eu.siacs.conversations.utils.ExceptionHelper;
  78import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  79import eu.siacs.conversations.utils.PRNGFixes;
  80import eu.siacs.conversations.utils.PhoneHelper;
  81import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
  82import eu.siacs.conversations.utils.Xmlns;
  83import eu.siacs.conversations.xml.Element;
  84import eu.siacs.conversations.xmpp.OnBindListener;
  85import eu.siacs.conversations.xmpp.OnContactStatusChanged;
  86import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  87import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
  88import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
  89import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
  90import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
  91import eu.siacs.conversations.xmpp.OnStatusChanged;
  92import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  93import eu.siacs.conversations.xmpp.XmppConnection;
  94import eu.siacs.conversations.xmpp.chatstate.ChatState;
  95import eu.siacs.conversations.xmpp.forms.Data;
  96import eu.siacs.conversations.xmpp.forms.Field;
  97import eu.siacs.conversations.xmpp.jid.InvalidJidException;
  98import eu.siacs.conversations.xmpp.jid.Jid;
  99import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 100import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 101import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 102import eu.siacs.conversations.xmpp.pep.Avatar;
 103import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 104import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 105import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 106import me.leolin.shortcutbadger.ShortcutBadger;
 107
 108public class XmppConnectionService extends Service implements OnPhoneContactsLoadedListener {
 109
 110	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 111	public static final String ACTION_DISABLE_FOREGROUND = "disable_foreground";
 112	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 113	public static final String ACTION_TRY_AGAIN = "try_again";
 114	public static final String ACTION_DISABLE_ACCOUNT = "disable_account";
 115	private ContentObserver contactObserver = new ContentObserver(null) {
 116		@Override
 117		public void onChange(boolean selfChange) {
 118			super.onChange(selfChange);
 119			Intent intent = new Intent(getApplicationContext(),
 120					XmppConnectionService.class);
 121			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 122			startService(intent);
 123		}
 124	};
 125
 126	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor();
 127	private final SerialSingleThreadExecutor mDatabaseExecutor = new SerialSingleThreadExecutor();
 128
 129	private final IBinder mBinder = new XmppConnectionBinder();
 130	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 131	private final FileObserver fileObserver = new FileObserver(
 132			FileBackend.getConversationsImageDirectory()) {
 133
 134		@Override
 135		public void onEvent(int event, String path) {
 136			if (event == FileObserver.DELETE) {
 137				markFileDeleted(path.split("\\.")[0]);
 138			}
 139		}
 140	};
 141	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 142
 143		@Override
 144		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 145			mJingleConnectionManager.deliverPacket(account, packet);
 146		}
 147	};
 148	private final OnBindListener mOnBindListener = new OnBindListener() {
 149
 150		@Override
 151		public void onBind(final Account account) {
 152			account.getRoster().clearPresences();
 153			account.pendingConferenceJoins.clear();
 154			account.pendingConferenceLeaves.clear();
 155			fetchRosterFromServer(account);
 156			fetchBookmarks(account);
 157			sendPresence(account);
 158			connectMultiModeConversations(account);
 159			updateConversationUi();
 160		}
 161	};
 162	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 163
 164		@Override
 165		public void onMessageAcknowledged(Account account, String uuid) {
 166			for (final Conversation conversation : getConversations()) {
 167				if (conversation.getAccount() == account) {
 168					Message message = conversation.findUnsentMessageWithUuid(uuid);
 169					if (message != null) {
 170						markMessage(message, Message.STATUS_SEND);
 171						if (conversation.setLastMessageTransmitted(System.currentTimeMillis())) {
 172							databaseBackend.updateConversation(conversation);
 173						}
 174					}
 175				}
 176			}
 177		}
 178	};
 179	private final IqGenerator mIqGenerator = new IqGenerator(this);
 180	public DatabaseBackend databaseBackend;
 181	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 182
 183		@Override
 184		public void onContactStatusChanged(Contact contact, boolean online) {
 185			Conversation conversation = find(getConversations(), contact);
 186			if (conversation != null) {
 187				if (online) {
 188					conversation.endOtrIfNeeded();
 189					if (contact.getPresences().size() == 1) {
 190						sendUnsentMessages(conversation);
 191					}
 192				} else {
 193					if (contact.getPresences().size() >= 1) {
 194						if (conversation.hasValidOtrSession()) {
 195							String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 196							if (!(Arrays.asList(contact.getPresences().asStringArray()).contains(otrResource))) {
 197								conversation.endOtrIfNeeded();
 198							}
 199						}
 200					} else {
 201						conversation.endOtrIfNeeded();
 202					}
 203				}
 204			}
 205		}
 206	};
 207	private FileBackend fileBackend = new FileBackend(this);
 208	private MemorizingTrustManager mMemorizingTrustManager;
 209	private NotificationService mNotificationService = new NotificationService(
 210			this);
 211	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 212	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 213	private IqParser mIqParser = new IqParser(this);
 214	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 215		@Override
 216		public void onIqPacketReceived(Account account, IqPacket packet) {
 217			if (packet.getType() == IqPacket.TYPE.ERROR) {
 218				Element error = packet.findChild("error");
 219				String text = error != null ? error.findChildContent("text") : null;
 220				if (text != null) {
 221					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received iq error - "+text);
 222				}
 223			}
 224		}
 225	};
 226	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 227	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 228	private List<Account> accounts;
 229	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 230			this);
 231	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 232			this);
 233	private AvatarService mAvatarService = new AvatarService(this);
 234	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 235	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 236	private OnConversationUpdate mOnConversationUpdate = null;
 237	private int convChangedListenerCount = 0;
 238	private OnShowErrorToast mOnShowErrorToast = null;
 239	private int showErrorToastListenerCount = 0;
 240	private int unreadCount = -1;
 241	private OnAccountUpdate mOnAccountUpdate = null;
 242	private OnStatusChanged statusListener = new OnStatusChanged() {
 243
 244		@Override
 245		public void onStatusChanged(Account account) {
 246			XmppConnection connection = account.getXmppConnection();
 247			if (mOnAccountUpdate != null) {
 248				mOnAccountUpdate.onAccountUpdate();
 249			}
 250			if (account.getStatus() == Account.State.ONLINE) {
 251				for (Conversation conversation : account.pendingConferenceLeaves) {
 252					leaveMuc(conversation);
 253				}
 254				for (Conversation conversation : account.pendingConferenceJoins) {
 255					joinMuc(conversation);
 256				}
 257				mMessageArchiveService.executePendingQueries(account);
 258				mJingleConnectionManager.cancelInTransmission();
 259				List<Conversation> conversations = getConversations();
 260				for (Conversation conversation : conversations) {
 261					if (conversation.getAccount() == account) {
 262						conversation.startOtrIfNeeded();
 263						sendUnsentMessages(conversation);
 264					}
 265				}
 266				if (connection != null && connection.getFeatures().csi()) {
 267					if (checkListeners()) {
 268						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 269								+ " sending csi//inactive");
 270						connection.sendInactive();
 271					} else {
 272						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 273								+ " sending csi//active");
 274						connection.sendActive();
 275					}
 276				}
 277				syncDirtyContacts(account);
 278				account.getAxolotlService().publishOwnDeviceIdIfNeeded();
 279				account.getAxolotlService().publishBundlesIfNeeded();
 280
 281				scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 282			} else if (account.getStatus() == Account.State.OFFLINE) {
 283				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 284					int timeToReconnect = mRandom.nextInt(20) + 10;
 285					scheduleWakeUpCall(timeToReconnect,account.getUuid().hashCode());
 286				}
 287			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 288				databaseBackend.updateAccount(account);
 289				reconnectAccount(account, true);
 290			} else if ((account.getStatus() != Account.State.CONNECTING)
 291					&& (account.getStatus() != Account.State.NO_INTERNET)) {
 292				if (connection != null) {
 293					int next = connection.getTimeToNextAttempt();
 294					Log.d(Config.LOGTAG, account.getJid().toBareJid()
 295							+ ": error connecting account. try again in "
 296							+ next + "s for the "
 297							+ (connection.getAttempt() + 1) + " time");
 298					scheduleWakeUpCall(next,account.getUuid().hashCode());
 299				}
 300					}
 301			getNotificationService().updateErrorNotification();
 302		}
 303	};
 304	private int accountChangedListenerCount = 0;
 305	private OnRosterUpdate mOnRosterUpdate = null;
 306	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 307	private int updateBlocklistListenerCount = 0;
 308	private int rosterChangedListenerCount = 0;
 309	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 310	private int mucRosterChangedListenerCount = 0;
 311	private OnKeyStatusUpdated mOnKeyStatusUpdated = null;
 312	private int keyStatusUpdatedListenerCount = 0;
 313	private SecureRandom mRandom;
 314	private OpenPgpServiceConnection pgpServiceConnection;
 315	private PgpEngine mPgpEngine = null;
 316	private WakeLock wakeLock;
 317	private PowerManager pm;
 318	private LruCache<String, Bitmap> mBitmapCache;
 319	private Thread mPhoneContactMergerThread;
 320
 321	private boolean mRestoredFromDatabase = false;
 322	public boolean areMessagesInitialized() {
 323		return this.mRestoredFromDatabase;
 324	}
 325
 326	public PgpEngine getPgpEngine() {
 327		if (pgpServiceConnection.isBound()) {
 328			if (this.mPgpEngine == null) {
 329				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 330							getApplicationContext(),
 331							pgpServiceConnection.getService()), this);
 332			}
 333			return mPgpEngine;
 334		} else {
 335			return null;
 336		}
 337
 338	}
 339
 340	public FileBackend getFileBackend() {
 341		return this.fileBackend;
 342	}
 343
 344	public AvatarService getAvatarService() {
 345		return this.mAvatarService;
 346	}
 347
 348	public void attachLocationToConversation(final Conversation conversation,
 349											 final Uri uri,
 350											 final UiCallback<Message> callback) {
 351		int encryption = conversation.getNextEncryption();
 352		if (encryption == Message.ENCRYPTION_PGP) {
 353			encryption = Message.ENCRYPTION_DECRYPTED;
 354		}
 355		Message message = new Message(conversation,uri.toString(),encryption);
 356		if (conversation.getNextCounterpart() != null) {
 357			message.setCounterpart(conversation.getNextCounterpart());
 358		}
 359		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 360			getPgpEngine().encrypt(message, callback);
 361		} else {
 362			callback.success(message);
 363		}
 364	}
 365
 366	public void attachFileToConversation(final Conversation conversation,
 367			final Uri uri,
 368			final UiCallback<Message> callback) {
 369		final Message message;
 370		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 371			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 372		} else {
 373			message = new Message(conversation, "", conversation.getNextEncryption());
 374		}
 375		message.setCounterpart(conversation.getNextCounterpart());
 376		message.setType(Message.TYPE_FILE);
 377		String path = getFileBackend().getOriginalPath(uri);
 378		if (path!=null) {
 379			message.setRelativeFilePath(path);
 380			getFileBackend().updateFileParams(message);
 381			if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 382				getPgpEngine().encrypt(message, callback);
 383			} else {
 384				callback.success(message);
 385			}
 386		} else {
 387			mFileAddingExecutor.execute(new Runnable() {
 388				@Override
 389				public void run() {
 390					try {
 391						getFileBackend().copyFileToPrivateStorage(message, uri);
 392						getFileBackend().updateFileParams(message);
 393						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 394							getPgpEngine().encrypt(message, callback);
 395						} else {
 396							callback.success(message);
 397						}
 398					} catch (FileBackend.FileCopyException e) {
 399						callback.error(e.getResId(), message);
 400					}
 401				}
 402			});
 403		}
 404	}
 405
 406	public void attachImageToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 407		if (getFileBackend().useImageAsIs(uri)) {
 408			Log.d(Config.LOGTAG,"using image as is");
 409			attachFileToConversation(conversation, uri, callback);
 410			return;
 411		}
 412		final Message message;
 413		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 414			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 415		} else {
 416			message = new Message(conversation, "",conversation.getNextEncryption());
 417		}
 418		message.setCounterpart(conversation.getNextCounterpart());
 419		message.setType(Message.TYPE_IMAGE);
 420		mFileAddingExecutor.execute(new Runnable() {
 421
 422			@Override
 423			public void run() {
 424				try {
 425					getFileBackend().copyImageToPrivateStorage(message, uri);
 426					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 427						getPgpEngine().encrypt(message, callback);
 428					} else {
 429						callback.success(message);
 430					}
 431				} catch (final FileBackend.FileCopyException e) {
 432					callback.error(e.getResId(), message);
 433				}
 434			}
 435		});
 436	}
 437
 438	public Conversation find(Bookmark bookmark) {
 439		return find(bookmark.getAccount(), bookmark.getJid());
 440	}
 441
 442	public Conversation find(final Account account, final Jid jid) {
 443		return find(getConversations(), account, jid);
 444	}
 445
 446	@Override
 447	public int onStartCommand(Intent intent, int flags, int startId) {
 448		final String action = intent == null ? null : intent.getAction();
 449		if (action != null) {
 450			switch (action) {
 451				case ConnectivityManager.CONNECTIVITY_ACTION:
 452					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 453						resetAllAttemptCounts(true);
 454					}
 455					break;
 456				case ACTION_MERGE_PHONE_CONTACTS:
 457					if (mRestoredFromDatabase) {
 458						PhoneHelper.loadPhoneContacts(getApplicationContext(),
 459								new CopyOnWriteArrayList<Bundle>(),
 460								this);
 461					}
 462					return START_STICKY;
 463				case Intent.ACTION_SHUTDOWN:
 464					logoutAndSave();
 465					return START_NOT_STICKY;
 466				case ACTION_CLEAR_NOTIFICATION:
 467					mNotificationService.clear();
 468					break;
 469				case ACTION_DISABLE_FOREGROUND:
 470					getPreferences().edit().putBoolean("keep_foreground_service",false).commit();
 471					toggleForegroundService();
 472					break;
 473				case ACTION_TRY_AGAIN:
 474					resetAllAttemptCounts(false);
 475					break;
 476				case ACTION_DISABLE_ACCOUNT:
 477					try {
 478						String jid = intent.getStringExtra("account");
 479						Account account = jid == null ? null : findAccountByJid(Jid.fromString(jid));
 480						if (account != null) {
 481							account.setOption(Account.OPTION_DISABLED,true);
 482							updateAccount(account);
 483						}
 484					} catch (final InvalidJidException ignored) {
 485						break;
 486					}
 487					break;
 488			}
 489		}
 490		this.wakeLock.acquire();
 491
 492		for (Account account : accounts) {
 493			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 494				if (!hasInternetConnection()) {
 495					account.setStatus(Account.State.NO_INTERNET);
 496					if (statusListener != null) {
 497						statusListener.onStatusChanged(account);
 498					}
 499				} else {
 500					if (account.getStatus() == Account.State.NO_INTERNET) {
 501						account.setStatus(Account.State.OFFLINE);
 502						if (statusListener != null) {
 503							statusListener.onStatusChanged(account);
 504						}
 505					}
 506					if (account.getStatus() == Account.State.ONLINE) {
 507						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 508						long lastSent = account.getXmppConnection().getLastPingSent();
 509						long pingInterval = "ui".equals(action) ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 510						long msToNextPing = (Math.max(lastReceived,lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 511						long pingTimeoutIn = (lastSent + Config.PING_TIMEOUT * 1000) - SystemClock.elapsedRealtime();
 512						if (lastSent > lastReceived) {
 513							if (pingTimeoutIn < 0) {
 514								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 515								this.reconnectAccount(account, true);
 516							} else {
 517								int secs = (int) (pingTimeoutIn / 1000);
 518								this.scheduleWakeUpCall(secs,account.getUuid().hashCode());
 519							}
 520						} else if (msToNextPing <= 0) {
 521							account.getXmppConnection().sendPing();
 522							Log.d(Config.LOGTAG, account.getJid().toBareJid()+" send ping");
 523							this.scheduleWakeUpCall(Config.PING_TIMEOUT,account.getUuid().hashCode());
 524						} else {
 525							this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 526						}
 527					} else if (account.getStatus() == Account.State.OFFLINE) {
 528						reconnectAccount(account,true);
 529					} else if (account.getStatus() == Account.State.CONNECTING) {
 530						long timeout = Config.CONNECT_TIMEOUT - ((SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000);
 531						if (timeout < 0) {
 532							Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting");
 533							reconnectAccount(account, true);
 534						} else {
 535							scheduleWakeUpCall((int) timeout,account.getUuid().hashCode());
 536						}
 537					} else {
 538						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 539							reconnectAccount(account, true);
 540						}
 541					}
 542
 543				}
 544				if (mOnAccountUpdate != null) {
 545					mOnAccountUpdate.onAccountUpdate();
 546				}
 547			}
 548		}
 549		/*PowerManager pm = (PowerManager) this.getSystemService(Context.POWER_SERVICE);
 550			if (!pm.isScreenOn()) {
 551			removeStaleListeners();
 552			}*/
 553		if (wakeLock.isHeld()) {
 554			try {
 555				wakeLock.release();
 556			} catch (final RuntimeException ignored) {
 557			}
 558		}
 559		return START_STICKY;
 560	}
 561
 562	private void resetAllAttemptCounts(boolean reallyAll) {
 563		Log.d(Config.LOGTAG,"resetting all attepmt counts");
 564		for(Account account : accounts) {
 565			if (account.hasErrorStatus() || reallyAll) {
 566				final XmppConnection connection = account.getXmppConnection();
 567				if (connection != null) {
 568					connection.resetAttemptCount();
 569				}
 570			}
 571		}
 572	}
 573
 574	public boolean hasInternetConnection() {
 575		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 576			.getSystemService(Context.CONNECTIVITY_SERVICE);
 577		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 578		return activeNetwork != null && activeNetwork.isConnected();
 579	}
 580
 581	@SuppressLint("TrulyRandom")
 582	@Override
 583	public void onCreate() {
 584		ExceptionHelper.init(getApplicationContext());
 585		PRNGFixes.apply();
 586		this.mRandom = new SecureRandom();
 587		updateMemorizingTrustmanager();
 588		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 589		final int cacheSize = maxMemory / 8;
 590		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 591			@Override
 592			protected int sizeOf(final String key, final Bitmap bitmap) {
 593				return bitmap.getByteCount() / 1024;
 594			}
 595		};
 596
 597		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 598		this.accounts = databaseBackend.getAccounts();
 599
 600		restoreFromDatabase();
 601
 602		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 603		this.fileObserver.startWatching();
 604		this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain");
 605		this.pgpServiceConnection.bindToService();
 606
 607		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 608		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"XmppConnectionService");
 609		toggleForegroundService();
 610		updateUnreadCountBadge();
 611	}
 612
 613	public void toggleForegroundService() {
 614		if (getPreferences().getBoolean("keep_foreground_service",false)) {
 615			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
 616		} else {
 617			stopForeground(true);
 618		}
 619	}
 620
 621	@Override
 622	public void onTaskRemoved(final Intent rootIntent) {
 623		super.onTaskRemoved(rootIntent);
 624		if (!getPreferences().getBoolean("keep_foreground_service",false)) {
 625			this.logoutAndSave();
 626		}
 627	}
 628
 629	private void logoutAndSave() {
 630		for (final Account account : accounts) {
 631			databaseBackend.writeRoster(account.getRoster());
 632			if (account.getXmppConnection() != null) {
 633				disconnect(account, false);
 634			}
 635		}
 636		Context context = getApplicationContext();
 637		AlarmManager alarmManager = (AlarmManager) context
 638				.getSystemService(Context.ALARM_SERVICE);
 639		Intent intent = new Intent(context, EventReceiver.class);
 640		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 641		Log.d(Config.LOGTAG, "good bye");
 642		stopSelf();
 643	}
 644
 645	protected void scheduleWakeUpCall(int seconds, int requestCode) {
 646		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
 647
 648		Context context = getApplicationContext();
 649		AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
 650
 651		Intent intent = new Intent(context, EventReceiver.class);
 652		intent.setAction("ping");
 653		PendingIntent alarmIntent = PendingIntent.getBroadcast(context, requestCode, intent, 0);
 654		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, alarmIntent);
 655	}
 656
 657	public XmppConnection createConnection(final Account account) {
 658		final SharedPreferences sharedPref = getPreferences();
 659		account.setResource(sharedPref.getString("resource", "mobile")
 660				.toLowerCase(Locale.getDefault()));
 661		final XmppConnection connection = new XmppConnection(account, this);
 662		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 663		connection.setOnStatusChangedListener(this.statusListener);
 664		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 665		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 666		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 667		connection.setOnBindListener(this.mOnBindListener);
 668		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 669		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
 670		return connection;
 671	}
 672
 673	public void sendChatState(Conversation conversation) {
 674		if (sendChatStates()) {
 675			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
 676			sendMessagePacket(conversation.getAccount(), packet);
 677		}
 678	}
 679
 680	private void sendFileMessage(final Message message, final boolean delay) {
 681		Log.d(Config.LOGTAG, "send file message");
 682		final Account account = message.getConversation().getAccount();
 683		final XmppConnection connection = account.getXmppConnection();
 684		if (connection != null && connection.getFeatures().httpUpload()) {
 685			mHttpConnectionManager.createNewUploadConnection(message, delay);
 686		} else {
 687			mJingleConnectionManager.createNewConnection(message);
 688		}
 689	}
 690
 691	public void sendMessage(final Message message) {
 692		sendMessage(message, false, false);
 693	}
 694
 695	private void sendMessage(final Message message, final boolean resend, final boolean delay) {
 696		final Account account = message.getConversation().getAccount();
 697		final Conversation conversation = message.getConversation();
 698		account.deactivateGracePeriod();
 699		MessagePacket packet = null;
 700		boolean saveInDb = true;
 701		message.setStatus(Message.STATUS_WAITING);
 702
 703		if (!resend && message.getEncryption() != Message.ENCRYPTION_OTR) {
 704			message.getConversation().endOtrIfNeeded();
 705			message.getConversation().findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR,
 706					new Conversation.OnMessageFound() {
 707				@Override
 708				public void onMessageFound(Message message) {
 709					markMessage(message,Message.STATUS_SEND_FAILED);
 710				}
 711			});
 712		}
 713
 714		if (account.isOnlineAndConnected()) {
 715			switch (message.getEncryption()) {
 716				case Message.ENCRYPTION_NONE:
 717					if (message.needsUploading()) {
 718						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 719							this.sendFileMessage(message,delay);
 720						} else {
 721							break;
 722						}
 723					} else {
 724						packet = mMessageGenerator.generateChat(message);
 725					}
 726					break;
 727				case Message.ENCRYPTION_PGP:
 728				case Message.ENCRYPTION_DECRYPTED:
 729					if (message.needsUploading()) {
 730						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 731							this.sendFileMessage(message,delay);
 732						} else {
 733							break;
 734						}
 735					} else {
 736						packet = mMessageGenerator.generatePgpChat(message);
 737					}
 738					break;
 739				case Message.ENCRYPTION_OTR:
 740					SessionImpl otrSession = conversation.getOtrSession();
 741					if (otrSession != null && otrSession.getSessionStatus() == SessionStatus.ENCRYPTED) {
 742						try {
 743							message.setCounterpart(Jid.fromSessionID(otrSession.getSessionID()));
 744						} catch (InvalidJidException e) {
 745							break;
 746						}
 747						if (message.needsUploading()) {
 748							mJingleConnectionManager.createNewConnection(message);
 749						} else {
 750							packet = mMessageGenerator.generateOtrChat(message);
 751						}
 752					} else if (otrSession == null) {
 753						if (message.fixCounterpart()) {
 754							conversation.startOtrSession(message.getCounterpart().getResourcepart(), true);
 755						} else {
 756							break;
 757						}
 758					}
 759					break;
 760				case Message.ENCRYPTION_AXOLOTL:
 761					message.setAxolotlFingerprint(account.getAxolotlService().getOwnPublicKey().getFingerprint().replaceAll("\\s", ""));
 762					if (message.needsUploading()) {
 763						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 764							this.sendFileMessage(message,delay);
 765						} else {
 766							break;
 767						}
 768					} else {
 769						XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
 770						if (axolotlMessage == null) {
 771							account.getAxolotlService().preparePayloadMessage(message, delay);
 772						} else {
 773							packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
 774						}
 775					}
 776					break;
 777
 778			}
 779			if (packet != null) {
 780				if (account.getXmppConnection().getFeatures().sm() || conversation.getMode() == Conversation.MODE_MULTI) {
 781					message.setStatus(Message.STATUS_UNSEND);
 782				} else {
 783					message.setStatus(Message.STATUS_SEND);
 784				}
 785			}
 786		} else {
 787			switch(message.getEncryption()) {
 788				case Message.ENCRYPTION_DECRYPTED:
 789					if (!message.needsUploading()) {
 790						String pgpBody = message.getEncryptedBody();
 791						String decryptedBody = message.getBody();
 792						message.setBody(pgpBody);
 793						message.setEncryption(Message.ENCRYPTION_PGP);
 794						databaseBackend.createMessage(message);
 795						saveInDb = false;
 796						message.setBody(decryptedBody);
 797						message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 798					}
 799					break;
 800				case Message.ENCRYPTION_OTR:
 801					if (!conversation.hasValidOtrSession() && message.getCounterpart() != null) {
 802						conversation.startOtrSession(message.getCounterpart().getResourcepart(), false);
 803					}
 804					break;
 805				case Message.ENCRYPTION_AXOLOTL:
 806					message.setAxolotlFingerprint(account.getAxolotlService().getOwnPublicKey().getFingerprint().replaceAll("\\s", ""));
 807					break;
 808			}
 809		}
 810
 811		if (resend) {
 812			if (packet != null) {
 813				if (account.getXmppConnection().getFeatures().sm() || conversation.getMode() == Conversation.MODE_MULTI) {
 814					markMessage(message,Message.STATUS_UNSEND);
 815				} else {
 816					markMessage(message,Message.STATUS_SEND);
 817				}
 818			}
 819		} else {
 820			conversation.add(message);
 821			if (saveInDb && (message.getEncryption() == Message.ENCRYPTION_NONE || saveEncryptedMessages())) {
 822				databaseBackend.createMessage(message);
 823			}
 824			updateConversationUi();
 825		}
 826		if (packet != null) {
 827			if (delay) {
 828				mMessageGenerator.addDelay(packet,message.getTimeSent());
 829			}
 830			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 831				if (this.sendChatStates()) {
 832					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
 833				}
 834			}
 835			sendMessagePacket(account, packet);
 836		}
 837	}
 838
 839	private void sendUnsentMessages(final Conversation conversation) {
 840		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
 841
 842			@Override
 843			public void onMessageFound(Message message) {
 844				resendMessage(message, true);
 845			}
 846		});
 847	}
 848
 849	public void resendMessage(final Message message, final boolean delay) {
 850		sendMessage(message, true, delay);
 851	}
 852
 853	public void fetchRosterFromServer(final Account account) {
 854		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 855		if (!"".equals(account.getRosterVersion())) {
 856			Log.d(Config.LOGTAG, account.getJid().toBareJid()
 857					+ ": fetching roster version " + account.getRosterVersion());
 858		} else {
 859			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
 860		}
 861		iqPacket.query(Xmlns.ROSTER).setAttribute("ver", account.getRosterVersion());
 862		sendIqPacket(account,iqPacket,mIqParser);
 863	}
 864
 865	public void fetchBookmarks(final Account account) {
 866		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 867		final Element query = iqPacket.query("jabber:iq:private");
 868		query.addChild("storage", "storage:bookmarks");
 869		final OnIqPacketReceived callback = new OnIqPacketReceived() {
 870
 871			@Override
 872			public void onIqPacketReceived(final Account account, final IqPacket packet) {
 873				final Element query = packet.query();
 874				final List<Bookmark> bookmarks = new CopyOnWriteArrayList<>();
 875				final Element storage = query.findChild("storage",
 876						"storage:bookmarks");
 877				if (storage != null) {
 878					for (final Element item : storage.getChildren()) {
 879						if (item.getName().equals("conference")) {
 880							final Bookmark bookmark = Bookmark.parse(item, account);
 881							bookmarks.add(bookmark);
 882							Conversation conversation = find(bookmark);
 883							if (conversation != null) {
 884								conversation.setBookmark(bookmark);
 885							} else if (bookmark.autojoin() && bookmark.getJid() != null) {
 886								conversation = findOrCreateConversation(
 887										account, bookmark.getJid(), true);
 888								conversation.setBookmark(bookmark);
 889								joinMuc(conversation);
 890							}
 891						}
 892					}
 893				}
 894				account.setBookmarks(bookmarks);
 895			}
 896		};
 897		sendIqPacket(account, iqPacket, callback);
 898	}
 899
 900	public void pushBookmarks(Account account) {
 901		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
 902		Element query = iqPacket.query("jabber:iq:private");
 903		Element storage = query.addChild("storage", "storage:bookmarks");
 904		for (Bookmark bookmark : account.getBookmarks()) {
 905			storage.addChild(bookmark);
 906		}
 907		sendIqPacket(account, iqPacket, mDefaultIqHandler);
 908	}
 909
 910	public void onPhoneContactsLoaded(final List<Bundle> phoneContacts) {
 911		if (mPhoneContactMergerThread != null) {
 912			mPhoneContactMergerThread.interrupt();
 913		}
 914		mPhoneContactMergerThread = new Thread(new Runnable() {
 915			@Override
 916			public void run() {
 917				Log.d(Config.LOGTAG,"start merging phone contacts with roster");
 918				for (Account account : accounts) {
 919					List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
 920					for (Bundle phoneContact : phoneContacts) {
 921						if (Thread.interrupted()) {
 922							Log.d(Config.LOGTAG,"interrupted merging phone contacts");
 923							return;
 924						}
 925						Jid jid;
 926						try {
 927							jid = Jid.fromString(phoneContact.getString("jid"));
 928						} catch (final InvalidJidException e) {
 929							continue;
 930						}
 931						final Contact contact = account.getRoster().getContact(jid);
 932						String systemAccount = phoneContact.getInt("phoneid")
 933							+ "#"
 934							+ phoneContact.getString("lookup");
 935						contact.setSystemAccount(systemAccount);
 936						if (contact.setPhotoUri(phoneContact.getString("photouri"))) {
 937							getAvatarService().clear(contact);
 938						}
 939						contact.setSystemName(phoneContact.getString("displayname"));
 940						withSystemAccounts.remove(contact);
 941					}
 942					for(Contact contact : withSystemAccounts) {
 943						contact.setSystemAccount(null);
 944						contact.setSystemName(null);
 945						if (contact.setPhotoUri(null)) {
 946							getAvatarService().clear(contact);
 947						}
 948					}
 949				}
 950				Log.d(Config.LOGTAG,"finished merging phone contacts");
 951				updateAccountUi();
 952			}
 953		});
 954		mPhoneContactMergerThread.start();
 955	}
 956
 957	private void restoreFromDatabase() {
 958		synchronized (this.conversations) {
 959			final Map<String, Account> accountLookupTable = new Hashtable<>();
 960			for (Account account : this.accounts) {
 961				accountLookupTable.put(account.getUuid(), account);
 962			}
 963			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
 964			for (Conversation conversation : this.conversations) {
 965				Account account = accountLookupTable.get(conversation.getAccountUuid());
 966				conversation.setAccount(account);
 967			}
 968			Runnable runnable =new Runnable() {
 969				@Override
 970				public void run() {
 971					Log.d(Config.LOGTAG,"restoring roster");
 972					for(Account account : accounts) {
 973						databaseBackend.readRoster(account.getRoster());
 974						account.initAccountServices(XmppConnectionService.this);
 975					}
 976					getBitmapCache().evictAll();
 977					Looper.prepare();
 978					PhoneHelper.loadPhoneContacts(getApplicationContext(),
 979							new CopyOnWriteArrayList<Bundle>(),
 980							XmppConnectionService.this);
 981					Log.d(Config.LOGTAG,"restoring messages");
 982					for (Conversation conversation : conversations) {
 983						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
 984						checkDeletedFiles(conversation);
 985					}
 986					mRestoredFromDatabase = true;
 987					Log.d(Config.LOGTAG,"restored all messages");
 988					updateConversationUi();
 989				}
 990			};
 991			mDatabaseExecutor.execute(runnable);
 992		}
 993	}
 994
 995	public List<Conversation> getConversations() {
 996		return this.conversations;
 997	}
 998
 999	private void checkDeletedFiles(Conversation conversation) {
1000		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1001
1002			@Override
1003			public void onMessageFound(Message message) {
1004				if (!getFileBackend().isFileAvailable(message)) {
1005					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1006					final int s = message.getStatus();
1007					if(s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1008						markMessage(message,Message.STATUS_SEND_FAILED);
1009					}
1010				}
1011			}
1012		});
1013	}
1014
1015	private void markFileDeleted(String uuid) {
1016		for (Conversation conversation : getConversations()) {
1017			Message message = conversation.findMessageWithFileAndUuid(uuid);
1018			if (message != null) {
1019				if (!getFileBackend().isFileAvailable(message)) {
1020					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1021					final int s = message.getStatus();
1022					if(s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1023						markMessage(message,Message.STATUS_SEND_FAILED);
1024					} else {
1025						updateConversationUi();
1026					}
1027				}
1028				return;
1029			}
1030		}
1031	}
1032
1033	public void populateWithOrderedConversations(final List<Conversation> list) {
1034		populateWithOrderedConversations(list, true);
1035	}
1036
1037	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1038		list.clear();
1039		if (includeNoFileUpload) {
1040			list.addAll(getConversations());
1041		} else {
1042			for (Conversation conversation : getConversations()) {
1043				if (conversation.getMode() == Conversation.MODE_SINGLE
1044						|| conversation.getAccount().httpUploadAvailable()) {
1045					list.add(conversation);
1046				}
1047			}
1048		}
1049		Collections.sort(list, new Comparator<Conversation>() {
1050			@Override
1051			public int compare(Conversation lhs, Conversation rhs) {
1052				Message left = lhs.getLatestMessage();
1053				Message right = rhs.getLatestMessage();
1054				if (left.getTimeSent() > right.getTimeSent()) {
1055					return -1;
1056				} else if (left.getTimeSent() < right.getTimeSent()) {
1057					return 1;
1058				} else {
1059					return 0;
1060				}
1061			}
1062		});
1063	}
1064
1065	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1066		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1067		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation,callback)) {
1068			return;
1069		}
1070		Runnable runnable = new Runnable() {
1071			@Override
1072			public void run() {
1073				final Account account = conversation.getAccount();
1074				List<Message> messages = databaseBackend.getMessages(conversation, 50,timestamp);
1075				if (messages.size() > 0) {
1076					conversation.addAll(0, messages);
1077					checkDeletedFiles(conversation);
1078					callback.onMoreMessagesLoaded(messages.size(), conversation);
1079				} else if (conversation.hasMessagesLeftOnServer()
1080						&& account.isOnlineAndConnected()
1081						&& account.getXmppConnection().getFeatures().mam()) {
1082					MessageArchiveService.Query query = getMessageArchiveService().query(conversation,0,timestamp - 1);
1083					if (query != null) {
1084						query.setCallback(callback);
1085					}
1086					callback.informUser(R.string.fetching_history_from_server);
1087				}
1088			}
1089		};
1090		mDatabaseExecutor.execute(runnable);
1091	}
1092
1093	public List<Account> getAccounts() {
1094		return this.accounts;
1095	}
1096
1097	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1098		for (final Conversation conversation : haystack) {
1099			if (conversation.getContact() == contact) {
1100				return conversation;
1101			}
1102		}
1103		return null;
1104	}
1105
1106	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1107		if (jid == null) {
1108			return null;
1109		}
1110		for (final Conversation conversation : haystack) {
1111			if ((account == null || conversation.getAccount() == account)
1112					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1113				return conversation;
1114			}
1115		}
1116		return null;
1117	}
1118
1119	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc) {
1120		return this.findOrCreateConversation(account, jid, muc, null);
1121	}
1122
1123	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final MessageArchiveService.Query query) {
1124		synchronized (this.conversations) {
1125			Conversation conversation = find(account, jid);
1126			if (conversation != null) {
1127				return conversation;
1128			}
1129			conversation = databaseBackend.findConversation(account, jid);
1130			if (conversation != null) {
1131				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1132				conversation.setAccount(account);
1133				if (muc) {
1134					conversation.setMode(Conversation.MODE_MULTI);
1135					conversation.setContactJid(jid);
1136				} else {
1137					conversation.setMode(Conversation.MODE_SINGLE);
1138					conversation.setContactJid(jid.toBareJid());
1139				}
1140				conversation.setNextEncryption(-1);
1141				conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1142				this.databaseBackend.updateConversation(conversation);
1143			} else {
1144				String conversationName;
1145				Contact contact = account.getRoster().getContact(jid);
1146				if (contact != null) {
1147					conversationName = contact.getDisplayName();
1148				} else {
1149					conversationName = jid.getLocalpart();
1150				}
1151				if (muc) {
1152					conversation = new Conversation(conversationName, account, jid,
1153							Conversation.MODE_MULTI);
1154				} else {
1155					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1156							Conversation.MODE_SINGLE);
1157				}
1158				this.databaseBackend.createConversation(conversation);
1159			}
1160			if (account.getXmppConnection() != null
1161					&& account.getXmppConnection().getFeatures().mam()
1162					&& !muc) {
1163				if (query == null) {
1164					this.mMessageArchiveService.query(conversation);
1165				} else {
1166					if (query.getConversation() == null) {
1167						this.mMessageArchiveService.query(conversation, query.getStart());
1168					}
1169				}
1170			}
1171			checkDeletedFiles(conversation);
1172			this.conversations.add(conversation);
1173			updateConversationUi();
1174			return conversation;
1175		}
1176	}
1177
1178	public void archiveConversation(Conversation conversation) {
1179		getNotificationService().clear(conversation);
1180		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1181		conversation.setNextEncryption(-1);
1182		synchronized (this.conversations) {
1183			if (conversation.getMode() == Conversation.MODE_MULTI) {
1184				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1185					Bookmark bookmark = conversation.getBookmark();
1186					if (bookmark != null && bookmark.autojoin()) {
1187						bookmark.setAutojoin(false);
1188						pushBookmarks(bookmark.getAccount());
1189					}
1190				}
1191				leaveMuc(conversation);
1192			} else {
1193				conversation.endOtrIfNeeded();
1194			}
1195			this.databaseBackend.updateConversation(conversation);
1196			this.conversations.remove(conversation);
1197			updateConversationUi();
1198		}
1199	}
1200
1201	public void createAccount(final Account account) {
1202		account.initAccountServices(this);
1203		databaseBackend.createAccount(account);
1204		this.accounts.add(account);
1205		this.reconnectAccountInBackground(account);
1206		updateAccountUi();
1207	}
1208
1209	public void updateAccount(final Account account) {
1210		this.statusListener.onStatusChanged(account);
1211		databaseBackend.updateAccount(account);
1212		reconnectAccount(account, false);
1213		updateAccountUi();
1214		getNotificationService().updateErrorNotification();
1215	}
1216
1217	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1218		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1219		sendIqPacket(account, iq, new OnIqPacketReceived() {
1220			@Override
1221			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1222				if (packet.getType() == IqPacket.TYPE.RESULT) {
1223					account.setPassword(newPassword);
1224					databaseBackend.updateAccount(account);
1225					callback.onPasswordChangeSucceeded();
1226				} else {
1227					callback.onPasswordChangeFailed();
1228				}
1229			}
1230		});
1231	}
1232
1233	public void deleteAccount(final Account account) {
1234		synchronized (this.conversations) {
1235			for (final Conversation conversation : conversations) {
1236				if (conversation.getAccount() == account) {
1237					if (conversation.getMode() == Conversation.MODE_MULTI) {
1238						leaveMuc(conversation);
1239					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1240						conversation.endOtrIfNeeded();
1241					}
1242					conversations.remove(conversation);
1243				}
1244			}
1245			if (account.getXmppConnection() != null) {
1246				this.disconnect(account, true);
1247			}
1248			databaseBackend.deleteAccount(account);
1249			this.accounts.remove(account);
1250			updateAccountUi();
1251			getNotificationService().updateErrorNotification();
1252		}
1253	}
1254
1255	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1256		synchronized (this) {
1257			if (checkListeners()) {
1258				switchToForeground();
1259			}
1260			this.mOnConversationUpdate = listener;
1261			this.mNotificationService.setIsInForeground(true);
1262			if (this.convChangedListenerCount < 2) {
1263				this.convChangedListenerCount++;
1264			}
1265		}
1266	}
1267
1268	public void removeOnConversationListChangedListener() {
1269		synchronized (this) {
1270			this.convChangedListenerCount--;
1271			if (this.convChangedListenerCount <= 0) {
1272				this.convChangedListenerCount = 0;
1273				this.mOnConversationUpdate = null;
1274				this.mNotificationService.setIsInForeground(false);
1275				if (checkListeners()) {
1276					switchToBackground();
1277				}
1278			}
1279		}
1280	}
1281
1282	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1283		synchronized (this) {
1284			if (checkListeners()) {
1285				switchToForeground();
1286			}
1287			this.mOnShowErrorToast = onShowErrorToast;
1288			if (this.showErrorToastListenerCount < 2) {
1289				this.showErrorToastListenerCount++;
1290			}
1291		}
1292		this.mOnShowErrorToast = onShowErrorToast;
1293	}
1294
1295	public void removeOnShowErrorToastListener() {
1296		synchronized (this) {
1297			this.showErrorToastListenerCount--;
1298			if (this.showErrorToastListenerCount <= 0) {
1299				this.showErrorToastListenerCount = 0;
1300				this.mOnShowErrorToast = null;
1301				if (checkListeners()) {
1302					switchToBackground();
1303				}
1304			}
1305		}
1306	}
1307
1308	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1309		synchronized (this) {
1310			if (checkListeners()) {
1311				switchToForeground();
1312			}
1313			this.mOnAccountUpdate = listener;
1314			if (this.accountChangedListenerCount < 2) {
1315				this.accountChangedListenerCount++;
1316			}
1317		}
1318	}
1319
1320	public void removeOnAccountListChangedListener() {
1321		synchronized (this) {
1322			this.accountChangedListenerCount--;
1323			if (this.accountChangedListenerCount <= 0) {
1324				this.mOnAccountUpdate = null;
1325				this.accountChangedListenerCount = 0;
1326				if (checkListeners()) {
1327					switchToBackground();
1328				}
1329			}
1330		}
1331	}
1332
1333	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
1334		synchronized (this) {
1335			if (checkListeners()) {
1336				switchToForeground();
1337			}
1338			this.mOnRosterUpdate = listener;
1339			if (this.rosterChangedListenerCount < 2) {
1340				this.rosterChangedListenerCount++;
1341			}
1342		}
1343	}
1344
1345	public void removeOnRosterUpdateListener() {
1346		synchronized (this) {
1347			this.rosterChangedListenerCount--;
1348			if (this.rosterChangedListenerCount <= 0) {
1349				this.rosterChangedListenerCount = 0;
1350				this.mOnRosterUpdate = null;
1351				if (checkListeners()) {
1352					switchToBackground();
1353				}
1354			}
1355		}
1356	}
1357
1358	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
1359		synchronized (this) {
1360			if (checkListeners()) {
1361				switchToForeground();
1362			}
1363			this.mOnUpdateBlocklist = listener;
1364			if (this.updateBlocklistListenerCount < 2) {
1365				this.updateBlocklistListenerCount++;
1366			}
1367		}
1368	}
1369
1370	public void removeOnUpdateBlocklistListener() {
1371		synchronized (this) {
1372			this.updateBlocklistListenerCount--;
1373			if (this.updateBlocklistListenerCount <= 0) {
1374				this.updateBlocklistListenerCount = 0;
1375				this.mOnUpdateBlocklist = null;
1376				if (checkListeners()) {
1377					switchToBackground();
1378				}
1379			}
1380		}
1381	}
1382
1383	public void setOnKeyStatusUpdatedListener(final OnKeyStatusUpdated listener) {
1384		synchronized (this) {
1385			if (checkListeners()) {
1386				switchToForeground();
1387			}
1388			this.mOnKeyStatusUpdated = listener;
1389			if (this.keyStatusUpdatedListenerCount < 2) {
1390				this.keyStatusUpdatedListenerCount++;
1391			}
1392		}
1393	}
1394
1395	public void removeOnNewKeysAvailableListener() {
1396		synchronized (this) {
1397			this.keyStatusUpdatedListenerCount--;
1398			if (this.keyStatusUpdatedListenerCount <= 0) {
1399				this.keyStatusUpdatedListenerCount = 0;
1400				this.mOnKeyStatusUpdated = null;
1401				if (checkListeners()) {
1402					switchToBackground();
1403				}
1404			}
1405		}
1406	}
1407
1408	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
1409		synchronized (this) {
1410			if (checkListeners()) {
1411				switchToForeground();
1412			}
1413			this.mOnMucRosterUpdate = listener;
1414			if (this.mucRosterChangedListenerCount < 2) {
1415				this.mucRosterChangedListenerCount++;
1416			}
1417		}
1418	}
1419
1420	public void removeOnMucRosterUpdateListener() {
1421		synchronized (this) {
1422			this.mucRosterChangedListenerCount--;
1423			if (this.mucRosterChangedListenerCount <= 0) {
1424				this.mucRosterChangedListenerCount = 0;
1425				this.mOnMucRosterUpdate = null;
1426				if (checkListeners()) {
1427					switchToBackground();
1428				}
1429			}
1430		}
1431	}
1432
1433	private boolean checkListeners() {
1434		return (this.mOnAccountUpdate == null
1435				&& this.mOnConversationUpdate == null
1436				&& this.mOnRosterUpdate == null
1437				&& this.mOnUpdateBlocklist == null
1438				&& this.mOnShowErrorToast == null
1439				&& this.mOnKeyStatusUpdated == null);
1440	}
1441
1442	private void switchToForeground() {
1443		for (Account account : getAccounts()) {
1444			if (account.getStatus() == Account.State.ONLINE) {
1445				XmppConnection connection = account.getXmppConnection();
1446				if (connection != null && connection.getFeatures().csi()) {
1447					connection.sendActive();
1448				}
1449			}
1450		}
1451		Log.d(Config.LOGTAG, "app switched into foreground");
1452	}
1453
1454	private void switchToBackground() {
1455		for (Account account : getAccounts()) {
1456			if (account.getStatus() == Account.State.ONLINE) {
1457				XmppConnection connection = account.getXmppConnection();
1458				if (connection != null && connection.getFeatures().csi()) {
1459					connection.sendInactive();
1460				}
1461			}
1462		}
1463		for(Conversation conversation : getConversations()) {
1464			conversation.setIncomingChatState(ChatState.ACTIVE);
1465		}
1466		this.mNotificationService.setIsInForeground(false);
1467		Log.d(Config.LOGTAG, "app switched into background");
1468	}
1469
1470	private void connectMultiModeConversations(Account account) {
1471		List<Conversation> conversations = getConversations();
1472		for (Conversation conversation : conversations) {
1473			if ((conversation.getMode() == Conversation.MODE_MULTI)
1474					&& (conversation.getAccount() == account)) {
1475				conversation.resetMucOptions();
1476				joinMuc(conversation);
1477			}
1478		}
1479	}
1480
1481	public void joinMuc(Conversation conversation) {
1482		Account account = conversation.getAccount();
1483		account.pendingConferenceJoins.remove(conversation);
1484		account.pendingConferenceLeaves.remove(conversation);
1485		if (account.getStatus() == Account.State.ONLINE) {
1486			final String nick = conversation.getMucOptions().getProposedNick();
1487			final Jid joinJid = conversation.getMucOptions().createJoinJid(nick);
1488			if (joinJid == null) {
1489				return; //safety net
1490			}
1491			Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
1492			PresencePacket packet = new PresencePacket();
1493			packet.setFrom(conversation.getAccount().getJid());
1494			packet.setTo(joinJid);
1495			Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
1496			if (conversation.getMucOptions().getPassword() != null) {
1497				x.addChild("password").setContent(conversation.getMucOptions().getPassword());
1498			}
1499			x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted()));
1500			String sig = account.getPgpSignature();
1501			if (sig != null) {
1502				packet.addChild("status").setContent("online");
1503				packet.addChild("x", "jabber:x:signed").setContent(sig);
1504			}
1505			sendPresencePacket(account, packet);
1506			fetchConferenceConfiguration(conversation);
1507			if (!joinJid.equals(conversation.getJid())) {
1508				conversation.setContactJid(joinJid);
1509				databaseBackend.updateConversation(conversation);
1510			}
1511			conversation.setHasMessagesLeftOnServer(false);
1512		} else {
1513			account.pendingConferenceJoins.add(conversation);
1514		}
1515	}
1516
1517	public void providePasswordForMuc(Conversation conversation, String password) {
1518		if (conversation.getMode() == Conversation.MODE_MULTI) {
1519			conversation.getMucOptions().setPassword(password);
1520			if (conversation.getBookmark() != null) {
1521				conversation.getBookmark().setAutojoin(true);
1522				pushBookmarks(conversation.getAccount());
1523			}
1524			databaseBackend.updateConversation(conversation);
1525			joinMuc(conversation);
1526		}
1527	}
1528
1529	public void renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
1530		final MucOptions options = conversation.getMucOptions();
1531		final Jid joinJid = options.createJoinJid(nick);
1532		if (options.online()) {
1533			Account account = conversation.getAccount();
1534			options.setOnRenameListener(new OnRenameListener() {
1535
1536				@Override
1537				public void onSuccess() {
1538					conversation.setContactJid(joinJid);
1539					databaseBackend.updateConversation(conversation);
1540					Bookmark bookmark = conversation.getBookmark();
1541					if (bookmark != null) {
1542						bookmark.setNick(nick);
1543						pushBookmarks(bookmark.getAccount());
1544					}
1545					callback.success(conversation);
1546				}
1547
1548				@Override
1549				public void onFailure() {
1550					callback.error(R.string.nick_in_use, conversation);
1551				}
1552			});
1553
1554			PresencePacket packet = new PresencePacket();
1555			packet.setTo(joinJid);
1556			packet.setFrom(conversation.getAccount().getJid());
1557
1558			String sig = account.getPgpSignature();
1559			if (sig != null) {
1560				packet.addChild("status").setContent("online");
1561				packet.addChild("x", "jabber:x:signed").setContent(sig);
1562			}
1563			sendPresencePacket(account, packet);
1564		} else {
1565			conversation.setContactJid(joinJid);
1566			databaseBackend.updateConversation(conversation);
1567			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1568				Bookmark bookmark = conversation.getBookmark();
1569				if (bookmark != null) {
1570					bookmark.setNick(nick);
1571					pushBookmarks(bookmark.getAccount());
1572				}
1573				joinMuc(conversation);
1574			}
1575		}
1576	}
1577
1578	public void leaveMuc(Conversation conversation) {
1579		Account account = conversation.getAccount();
1580		account.pendingConferenceJoins.remove(conversation);
1581		account.pendingConferenceLeaves.remove(conversation);
1582		if (account.getStatus() == Account.State.ONLINE) {
1583			PresencePacket packet = new PresencePacket();
1584			packet.setTo(conversation.getJid());
1585			packet.setFrom(conversation.getAccount().getJid());
1586			packet.setAttribute("type", "unavailable");
1587			sendPresencePacket(conversation.getAccount(), packet);
1588			conversation.getMucOptions().setOffline();
1589			conversation.deregisterWithBookmark();
1590			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid()
1591					+ ": leaving muc " + conversation.getJid());
1592		} else {
1593			account.pendingConferenceLeaves.add(conversation);
1594		}
1595	}
1596
1597	private String findConferenceServer(final Account account) {
1598		String server;
1599		if (account.getXmppConnection() != null) {
1600			server = account.getXmppConnection().getMucServer();
1601			if (server != null) {
1602				return server;
1603			}
1604		}
1605		for (Account other : getAccounts()) {
1606			if (other != account && other.getXmppConnection() != null) {
1607				server = other.getXmppConnection().getMucServer();
1608				if (server != null) {
1609					return server;
1610				}
1611			}
1612		}
1613		return null;
1614	}
1615
1616	public void createAdhocConference(final Account account, final Iterable<Jid> jids, final UiCallback<Conversation> callback) {
1617		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
1618		if (account.getStatus() == Account.State.ONLINE) {
1619			try {
1620				String server = findConferenceServer(account);
1621				if (server == null) {
1622					if (callback != null) {
1623						callback.error(R.string.no_conference_server_found, null);
1624					}
1625					return;
1626				}
1627				String name = new BigInteger(75, getRNG()).toString(32);
1628				Jid jid = Jid.fromParts(name, server, null);
1629				final Conversation conversation = findOrCreateConversation(account, jid, true);
1630				joinMuc(conversation);
1631				Bundle options = new Bundle();
1632				options.putString("muc#roomconfig_persistentroom", "1");
1633				options.putString("muc#roomconfig_membersonly", "1");
1634				options.putString("muc#roomconfig_publicroom", "0");
1635				options.putString("muc#roomconfig_whois", "anyone");
1636				pushConferenceConfiguration(conversation, options, new OnConferenceOptionsPushed() {
1637					@Override
1638					public void onPushSucceeded() {
1639						for (Jid invite : jids) {
1640							invite(conversation, invite);
1641						}
1642						if (account.countPresences() > 1) {
1643							directInvite(conversation, account.getJid().toBareJid());
1644						}
1645						if (callback != null) {
1646							callback.success(conversation);
1647						}
1648					}
1649
1650					@Override
1651					public void onPushFailed() {
1652						if (callback != null) {
1653							callback.error(R.string.conference_creation_failed, conversation);
1654						}
1655					}
1656				});
1657
1658			} catch (InvalidJidException e) {
1659				if (callback != null) {
1660					callback.error(R.string.conference_creation_failed, null);
1661				}
1662			}
1663		} else {
1664			if (callback != null) {
1665				callback.error(R.string.not_connected_try_again, null);
1666			}
1667		}
1668	}
1669
1670	public void fetchConferenceConfiguration(final Conversation conversation) {
1671		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1672		request.setTo(conversation.getJid().toBareJid());
1673		request.query("http://jabber.org/protocol/disco#info");
1674		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1675			@Override
1676			public void onIqPacketReceived(Account account, IqPacket packet) {
1677				if (packet.getType() != IqPacket.TYPE.ERROR) {
1678					ArrayList<String> features = new ArrayList<>();
1679					for (Element child : packet.query().getChildren()) {
1680						if (child != null && child.getName().equals("feature")) {
1681							String var = child.getAttribute("var");
1682							if (var != null) {
1683								features.add(var);
1684							}
1685						}
1686					}
1687					conversation.getMucOptions().updateFeatures(features);
1688					updateConversationUi();
1689				}
1690			}
1691		});
1692	}
1693
1694	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConferenceOptionsPushed callback) {
1695		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1696		request.setTo(conversation.getJid().toBareJid());
1697		request.query("http://jabber.org/protocol/muc#owner");
1698		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1699			@Override
1700			public void onIqPacketReceived(Account account, IqPacket packet) {
1701				if (packet.getType() != IqPacket.TYPE.ERROR) {
1702					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
1703					for (Field field : data.getFields()) {
1704						if (options.containsKey(field.getName())) {
1705							field.setValue(options.getString(field.getName()));
1706						}
1707					}
1708					data.submit();
1709					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
1710					set.setTo(conversation.getJid().toBareJid());
1711					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
1712					sendIqPacket(account, set, new OnIqPacketReceived() {
1713						@Override
1714						public void onIqPacketReceived(Account account, IqPacket packet) {
1715							if (packet.getType() == IqPacket.TYPE.RESULT) {
1716								if (callback != null) {
1717									callback.onPushSucceeded();
1718								}
1719							} else {
1720								if (callback != null) {
1721									callback.onPushFailed();
1722								}
1723							}
1724						}
1725					});
1726				} else {
1727					if (callback != null) {
1728						callback.onPushFailed();
1729					}
1730				}
1731			}
1732		});
1733	}
1734
1735	public void pushSubjectToConference(final Conversation conference, final String subject) {
1736		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
1737		this.sendMessagePacket(conference.getAccount(), packet);
1738		final MucOptions mucOptions = conference.getMucOptions();
1739		final MucOptions.User self = mucOptions.getSelf();
1740		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
1741			Bundle options = new Bundle();
1742			options.putString("muc#roomconfig_persistentroom", "1");
1743			this.pushConferenceConfiguration(conference, options, null);
1744		}
1745	}
1746
1747	public void changeAffiliationInConference(final Conversation conference, Jid user, MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
1748		final Jid jid = user.toBareJid();
1749		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
1750		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1751			@Override
1752			public void onIqPacketReceived(Account account, IqPacket packet) {
1753				if (packet.getType() == IqPacket.TYPE.RESULT) {
1754					callback.onAffiliationChangedSuccessful(jid);
1755				} else {
1756					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
1757				}
1758			}
1759		});
1760	}
1761
1762	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
1763		List<Jid> jids = new ArrayList<>();
1764		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
1765			if (user.getAffiliation() == before && user.getJid() != null) {
1766				jids.add(user.getJid());
1767			}
1768		}
1769		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
1770		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
1771	}
1772
1773	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
1774		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
1775		Log.d(Config.LOGTAG, request.toString());
1776		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1777			@Override
1778			public void onIqPacketReceived(Account account, IqPacket packet) {
1779				Log.d(Config.LOGTAG, packet.toString());
1780				if (packet.getType() == IqPacket.TYPE.RESULT) {
1781					callback.onRoleChangedSuccessful(nick);
1782				} else {
1783					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
1784				}
1785			}
1786		});
1787	}
1788
1789	public void disconnect(Account account, boolean force) {
1790		if ((account.getStatus() == Account.State.ONLINE)
1791				|| (account.getStatus() == Account.State.DISABLED)) {
1792			if (!force) {
1793				List<Conversation> conversations = getConversations();
1794				for (Conversation conversation : conversations) {
1795					if (conversation.getAccount() == account) {
1796						if (conversation.getMode() == Conversation.MODE_MULTI) {
1797							leaveMuc(conversation);
1798						} else {
1799							if (conversation.endOtrIfNeeded()) {
1800								Log.d(Config.LOGTAG, account.getJid().toBareJid()
1801										+ ": ended otr session with "
1802										+ conversation.getJid());
1803							}
1804						}
1805					}
1806				}
1807				sendOfflinePresence(account);
1808			}
1809			account.getXmppConnection().disconnect(force);
1810		}
1811	}
1812
1813	@Override
1814	public IBinder onBind(Intent intent) {
1815		return mBinder;
1816	}
1817
1818	public void updateMessage(Message message) {
1819		databaseBackend.updateMessage(message);
1820		updateConversationUi();
1821	}
1822
1823	protected void syncDirtyContacts(Account account) {
1824		for (Contact contact : account.getRoster().getContacts()) {
1825			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1826				pushContactToServer(contact);
1827			}
1828			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1829				deleteContactOnServer(contact);
1830			}
1831		}
1832	}
1833
1834	public void createContact(Contact contact) {
1835		SharedPreferences sharedPref = getPreferences();
1836		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1837		if (autoGrant) {
1838			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1839			contact.setOption(Contact.Options.ASKING);
1840		}
1841		pushContactToServer(contact);
1842	}
1843
1844	public void onOtrSessionEstablished(Conversation conversation) {
1845		final Account account = conversation.getAccount();
1846		final Session otrSession = conversation.getOtrSession();
1847		Log.d(Config.LOGTAG,
1848				account.getJid().toBareJid() + " otr session established with "
1849						+ conversation.getJid() + "/"
1850						+ otrSession.getSessionID().getUserID());
1851		conversation.findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR, new Conversation.OnMessageFound() {
1852
1853			@Override
1854			public void onMessageFound(Message message) {
1855				SessionID id = otrSession.getSessionID();
1856				try {
1857					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
1858				} catch (InvalidJidException e) {
1859					return;
1860				}
1861				if (message.needsUploading()) {
1862					mJingleConnectionManager.createNewConnection(message);
1863				} else {
1864					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message);
1865					if (outPacket != null) {
1866						mMessageGenerator.addDelay(outPacket, message.getTimeSent());
1867						message.setStatus(Message.STATUS_SEND);
1868						databaseBackend.updateMessage(message);
1869						sendMessagePacket(account, outPacket);
1870					}
1871				}
1872				updateConversationUi();
1873			}
1874		});
1875	}
1876
1877	public boolean renewSymmetricKey(Conversation conversation) {
1878		Account account = conversation.getAccount();
1879		byte[] symmetricKey = new byte[32];
1880		this.mRandom.nextBytes(symmetricKey);
1881		Session otrSession = conversation.getOtrSession();
1882		if (otrSession != null) {
1883			MessagePacket packet = new MessagePacket();
1884			packet.setType(MessagePacket.TYPE_CHAT);
1885			packet.setFrom(account.getJid());
1886			packet.addChild("private", "urn:xmpp:carbons:2");
1887			packet.addChild("no-copy", "urn:xmpp:hints");
1888			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
1889					+ otrSession.getSessionID().getUserID());
1890			try {
1891				packet.setBody(otrSession
1892						.transformSending(CryptoHelper.FILETRANSFER
1893								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
1894				sendMessagePacket(account, packet);
1895				conversation.setSymmetricKey(symmetricKey);
1896				return true;
1897			} catch (OtrException e) {
1898				return false;
1899			}
1900		}
1901		return false;
1902	}
1903
1904	public void pushContactToServer(final Contact contact) {
1905		contact.resetOption(Contact.Options.DIRTY_DELETE);
1906		contact.setOption(Contact.Options.DIRTY_PUSH);
1907		final Account account = contact.getAccount();
1908		if (account.getStatus() == Account.State.ONLINE) {
1909			final boolean ask = contact.getOption(Contact.Options.ASKING);
1910			final boolean sendUpdates = contact
1911					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
1912					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
1913			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
1914			iq.query(Xmlns.ROSTER).addChild(contact.asElement());
1915			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
1916			if (sendUpdates) {
1917				sendPresencePacket(account,
1918						mPresenceGenerator.sendPresenceUpdatesTo(contact));
1919			}
1920			if (ask) {
1921				sendPresencePacket(account,
1922						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
1923			}
1924		}
1925	}
1926
1927	public void publishAvatar(final Account account,
1928							  final Uri image,
1929							  final UiCallback<Avatar> callback) {
1930		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
1931		final int size = Config.AVATAR_SIZE;
1932		final Avatar avatar = getFileBackend()
1933				.getPepAvatar(image, size, format);
1934		if (avatar != null) {
1935			avatar.height = size;
1936			avatar.width = size;
1937			if (format.equals(Bitmap.CompressFormat.WEBP)) {
1938				avatar.type = "image/webp";
1939			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1940				avatar.type = "image/jpeg";
1941			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
1942				avatar.type = "image/png";
1943			}
1944			if (!getFileBackend().save(avatar)) {
1945				callback.error(R.string.error_saving_avatar, avatar);
1946				return;
1947			}
1948			final IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
1949			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1950
1951				@Override
1952				public void onIqPacketReceived(Account account, IqPacket result) {
1953					if (result.getType() == IqPacket.TYPE.RESULT) {
1954						final IqPacket packet = XmppConnectionService.this.mIqGenerator
1955								.publishAvatarMetadata(avatar);
1956						sendIqPacket(account, packet, new OnIqPacketReceived() {
1957
1958							@Override
1959							public void onIqPacketReceived(Account account,
1960														   IqPacket result) {
1961								if (result.getType() == IqPacket.TYPE.RESULT) {
1962									if (account.setAvatar(avatar.getFilename())) {
1963										getAvatarService().clear(account);
1964										databaseBackend.updateAccount(account);
1965									}
1966									callback.success(avatar);
1967								} else {
1968									callback.error(
1969											R.string.error_publish_avatar_server_reject,
1970											avatar);
1971								}
1972							}
1973						});
1974					} else {
1975						callback.error(
1976								R.string.error_publish_avatar_server_reject,
1977								avatar);
1978					}
1979				}
1980			});
1981		} else {
1982			callback.error(R.string.error_publish_avatar_converting, null);
1983		}
1984	}
1985
1986	public void fetchAvatar(Account account, Avatar avatar) {
1987		fetchAvatar(account, avatar, null);
1988	}
1989
1990	private static String generateFetchKey(Account account, final Avatar avatar) {
1991		return account.getJid().toBareJid()+"_"+avatar.owner+"_"+avatar.sha1sum;
1992	}
1993
1994	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
1995		final String KEY = generateFetchKey(account, avatar);
1996		synchronized(this.mInProgressAvatarFetches) {
1997			if (this.mInProgressAvatarFetches.contains(KEY)) {
1998				return;
1999			} else {
2000				switch (avatar.origin) {
2001					case PEP:
2002						this.mInProgressAvatarFetches.add(KEY);
2003						fetchAvatarPep(account, avatar, callback);
2004						break;
2005					case VCARD:
2006						this.mInProgressAvatarFetches.add(KEY);
2007						fetchAvatarVcard(account, avatar, callback);
2008						break;
2009				}
2010			}
2011		}
2012	}
2013
2014	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2015		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
2016		sendIqPacket(account, packet, new OnIqPacketReceived() {
2017
2018			@Override
2019			public void onIqPacketReceived(Account account, IqPacket result) {
2020				synchronized (mInProgressAvatarFetches) {
2021					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2022				}
2023				final String ERROR = account.getJid().toBareJid()
2024						+ ": fetching avatar for " + avatar.owner + " failed ";
2025				if (result.getType() == IqPacket.TYPE.RESULT) {
2026					avatar.image = mIqParser.avatarData(result);
2027					if (avatar.image != null) {
2028						if (getFileBackend().save(avatar)) {
2029							if (account.getJid().toBareJid().equals(avatar.owner)) {
2030								if (account.setAvatar(avatar.getFilename())) {
2031									databaseBackend.updateAccount(account);
2032								}
2033								getAvatarService().clear(account);
2034								updateConversationUi();
2035								updateAccountUi();
2036							} else {
2037								Contact contact = account.getRoster()
2038										.getContact(avatar.owner);
2039								contact.setAvatar(avatar);
2040								getAvatarService().clear(contact);
2041								updateConversationUi();
2042								updateRosterUi();
2043							}
2044							if (callback != null) {
2045								callback.success(avatar);
2046							}
2047							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2048									+ ": succesfuly fetched pep avatar for " + avatar.owner);
2049							return;
2050						}
2051					} else {
2052
2053						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
2054					}
2055				} else {
2056					Element error = result.findChild("error");
2057					if (error == null) {
2058						Log.d(Config.LOGTAG, ERROR + "(server error)");
2059					} else {
2060						Log.d(Config.LOGTAG, ERROR + error.toString());
2061					}
2062				}
2063				if (callback != null) {
2064					callback.error(0, null);
2065				}
2066
2067			}
2068		});
2069	}
2070
2071	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2072		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2073		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2074			@Override
2075			public void onIqPacketReceived(Account account, IqPacket packet) {
2076				synchronized (mInProgressAvatarFetches) {
2077					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2078				}
2079				if (packet.getType() == IqPacket.TYPE.RESULT) {
2080					Element vCard = packet.findChild("vCard", "vcard-temp");
2081					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2082					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2083					if (image != null) {
2084						avatar.image = image;
2085						if (getFileBackend().save(avatar)) {
2086							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2087									+ ": successfully fetched vCard avatar for " + avatar.owner);
2088							Contact contact = account.getRoster()
2089									.getContact(avatar.owner);
2090							contact.setAvatar(avatar);
2091							getAvatarService().clear(contact);
2092							updateConversationUi();
2093							updateRosterUi();
2094						}
2095					}
2096				}
2097			}
2098		});
2099	}
2100
2101	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
2102		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2103		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2104
2105			@Override
2106			public void onIqPacketReceived(Account account, IqPacket packet) {
2107				if (packet.getType() == IqPacket.TYPE.RESULT) {
2108					Element pubsub = packet.findChild("pubsub",
2109							"http://jabber.org/protocol/pubsub");
2110					if (pubsub != null) {
2111						Element items = pubsub.findChild("items");
2112						if (items != null) {
2113							Avatar avatar = Avatar.parseMetadata(items);
2114							if (avatar != null) {
2115								avatar.owner = account.getJid().toBareJid();
2116								if (fileBackend.isAvatarCached(avatar)) {
2117									if (account.setAvatar(avatar.getFilename())) {
2118										databaseBackend.updateAccount(account);
2119									}
2120									getAvatarService().clear(account);
2121									callback.success(avatar);
2122								} else {
2123									fetchAvatarPep(account, avatar, callback);
2124								}
2125								return;
2126							}
2127						}
2128					}
2129				}
2130				callback.error(0, null);
2131			}
2132		});
2133	}
2134
2135	public void deleteContactOnServer(Contact contact) {
2136		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
2137		contact.resetOption(Contact.Options.DIRTY_PUSH);
2138		contact.setOption(Contact.Options.DIRTY_DELETE);
2139		Account account = contact.getAccount();
2140		if (account.getStatus() == Account.State.ONLINE) {
2141			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2142			Element item = iq.query(Xmlns.ROSTER).addChild("item");
2143			item.setAttribute("jid", contact.getJid().toString());
2144			item.setAttribute("subscription", "remove");
2145			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2146		}
2147	}
2148
2149	public void updateConversation(Conversation conversation) {
2150		this.databaseBackend.updateConversation(conversation);
2151	}
2152
2153	public void reconnectAccount(final Account account, final boolean force) {
2154		synchronized (account) {
2155			if (account.getXmppConnection() != null) {
2156				disconnect(account, force);
2157			}
2158			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2159
2160				synchronized (this.mInProgressAvatarFetches) {
2161					for(Iterator<String> iterator = this.mInProgressAvatarFetches.iterator(); iterator.hasNext();) {
2162						final String KEY = iterator.next();
2163						if (KEY.startsWith(account.getJid().toBareJid()+"_")) {
2164							iterator.remove();
2165						}
2166					}
2167				}
2168
2169				if (account.getXmppConnection() == null) {
2170					account.setXmppConnection(createConnection(account));
2171				}
2172				Thread thread = new Thread(account.getXmppConnection());
2173				thread.start();
2174				scheduleWakeUpCall(Config.CONNECT_TIMEOUT, account.getUuid().hashCode());
2175			} else {
2176				account.getRoster().clearPresences();
2177				account.setXmppConnection(null);
2178			}
2179		}
2180	}
2181
2182	public void reconnectAccountInBackground(final Account account) {
2183		new Thread(new Runnable() {
2184			@Override
2185			public void run() {
2186				reconnectAccount(account,false);
2187			}
2188		}).start();
2189	}
2190
2191	public void invite(Conversation conversation, Jid contact) {
2192		Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+": inviting "+contact+" to "+conversation.getJid().toBareJid());
2193		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
2194		sendMessagePacket(conversation.getAccount(), packet);
2195	}
2196
2197	public void directInvite(Conversation conversation, Jid jid) {
2198		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
2199		sendMessagePacket(conversation.getAccount(),packet);
2200	}
2201
2202	public void resetSendingToWaiting(Account account) {
2203		for (Conversation conversation : getConversations()) {
2204			if (conversation.getAccount() == account) {
2205				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
2206
2207					@Override
2208					public void onMessageFound(Message message) {
2209						markMessage(message, Message.STATUS_WAITING);
2210					}
2211				});
2212			}
2213		}
2214	}
2215
2216	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
2217		if (uuid == null) {
2218			return null;
2219		}
2220		for (Conversation conversation : getConversations()) {
2221			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
2222				final Message message = conversation.findSentMessageWithUuid(uuid);
2223				if (message != null) {
2224					markMessage(message, status);
2225				}
2226				return message;
2227			}
2228		}
2229		return null;
2230	}
2231
2232	public boolean markMessage(Conversation conversation, String uuid,
2233							   int status) {
2234		if (uuid == null) {
2235			return false;
2236		} else {
2237			Message message = conversation.findSentMessageWithUuid(uuid);
2238			if (message != null) {
2239				markMessage(message, status);
2240				return true;
2241			} else {
2242				return false;
2243			}
2244		}
2245	}
2246
2247	public void markMessage(Message message, int status) {
2248		if (status == Message.STATUS_SEND_FAILED
2249				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
2250				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
2251			return;
2252		}
2253		message.setStatus(status);
2254		databaseBackend.updateMessage(message);
2255		updateConversationUi();
2256	}
2257
2258	public SharedPreferences getPreferences() {
2259		return PreferenceManager
2260				.getDefaultSharedPreferences(getApplicationContext());
2261	}
2262
2263	public boolean forceEncryption() {
2264		return getPreferences().getBoolean("force_encryption", false);
2265	}
2266
2267	public boolean confirmMessages() {
2268		return getPreferences().getBoolean("confirm_messages", true);
2269	}
2270
2271	public boolean sendChatStates() {
2272		return getPreferences().getBoolean("chat_states", false);
2273	}
2274
2275	public boolean saveEncryptedMessages() {
2276		return !getPreferences().getBoolean("dont_save_encrypted", false);
2277	}
2278
2279	public boolean indicateReceived() {
2280		return getPreferences().getBoolean("indicate_received", false);
2281	}
2282
2283	public int unreadCount() {
2284		int count = 0;
2285		for(Conversation conversation : getConversations()) {
2286			count += conversation.unreadCount();
2287		}
2288		return count;
2289	}
2290
2291
2292	public void showErrorToastInUi(int resId) {
2293		if (mOnShowErrorToast != null) {
2294			mOnShowErrorToast.onShowErrorToast(resId);
2295		}
2296	}
2297
2298	public void updateConversationUi() {
2299		if (mOnConversationUpdate != null) {
2300			mOnConversationUpdate.onConversationUpdate();
2301		}
2302	}
2303
2304	public void updateAccountUi() {
2305		if (mOnAccountUpdate != null) {
2306			mOnAccountUpdate.onAccountUpdate();
2307		}
2308	}
2309
2310	public void updateRosterUi() {
2311		if (mOnRosterUpdate != null) {
2312			mOnRosterUpdate.onRosterUpdate();
2313		}
2314	}
2315
2316	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
2317		if (mOnUpdateBlocklist != null) {
2318			mOnUpdateBlocklist.OnUpdateBlocklist(status);
2319		}
2320	}
2321
2322	public void updateMucRosterUi() {
2323		if (mOnMucRosterUpdate != null) {
2324			mOnMucRosterUpdate.onMucRosterUpdate();
2325		}
2326	}
2327
2328	public void keyStatusUpdated() {
2329		if(mOnKeyStatusUpdated != null) {
2330			mOnKeyStatusUpdated.onKeyStatusUpdated();
2331		}
2332	}
2333
2334	public Account findAccountByJid(final Jid accountJid) {
2335		for (Account account : this.accounts) {
2336			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
2337				return account;
2338			}
2339		}
2340		return null;
2341	}
2342
2343	public Conversation findConversationByUuid(String uuid) {
2344		for (Conversation conversation : getConversations()) {
2345			if (conversation.getUuid().equals(uuid)) {
2346				return conversation;
2347			}
2348		}
2349		return null;
2350	}
2351
2352	public void markRead(final Conversation conversation) {
2353		mNotificationService.clear(conversation);
2354		conversation.markRead();
2355		updateUnreadCountBadge();
2356	}
2357
2358	public synchronized void updateUnreadCountBadge() {
2359		int count = unreadCount();
2360		if (unreadCount != count) {
2361			Log.d(Config.LOGTAG, "update unread count to " + count);
2362			if (count > 0) {
2363				ShortcutBadger.with(getApplicationContext()).count(count);
2364			} else {
2365				ShortcutBadger.with(getApplicationContext()).remove();
2366			}
2367			unreadCount = count;
2368		}
2369	}
2370
2371	public void sendReadMarker(final Conversation conversation) {
2372		final Message markable = conversation.getLatestMarkableMessage();
2373		this.markRead(conversation);
2374		if (confirmMessages() && markable != null && markable.getRemoteMsgId() != null) {
2375			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
2376			Account account = conversation.getAccount();
2377			final Jid to = markable.getCounterpart();
2378			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
2379			this.sendMessagePacket(conversation.getAccount(), packet);
2380		}
2381		updateConversationUi();
2382	}
2383
2384	public SecureRandom getRNG() {
2385		return this.mRandom;
2386	}
2387
2388	public MemorizingTrustManager getMemorizingTrustManager() {
2389		return this.mMemorizingTrustManager;
2390	}
2391
2392	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
2393		this.mMemorizingTrustManager = trustManager;
2394	}
2395
2396	public void updateMemorizingTrustmanager() {
2397		final MemorizingTrustManager tm;
2398		final boolean dontTrustSystemCAs = getPreferences().getBoolean("dont_trust_system_cas", false);
2399		if (dontTrustSystemCAs) {
2400			 tm = new MemorizingTrustManager(getApplicationContext(), null);
2401		} else {
2402			tm = new MemorizingTrustManager(getApplicationContext());
2403		}
2404		setMemorizingTrustManager(tm);
2405	}
2406
2407	public PowerManager getPowerManager() {
2408		return this.pm;
2409	}
2410
2411	public LruCache<String, Bitmap> getBitmapCache() {
2412		return this.mBitmapCache;
2413	}
2414
2415	public void syncRosterToDisk(final Account account) {
2416		Runnable runnable = new Runnable() {
2417
2418			@Override
2419			public void run() {
2420				databaseBackend.writeRoster(account.getRoster());
2421			}
2422		};
2423		mDatabaseExecutor.execute(runnable);
2424
2425	}
2426
2427	public List<String> getKnownHosts() {
2428		final List<String> hosts = new ArrayList<>();
2429		for (final Account account : getAccounts()) {
2430			if (!hosts.contains(account.getServer().toString())) {
2431				hosts.add(account.getServer().toString());
2432			}
2433			for (final Contact contact : account.getRoster().getContacts()) {
2434				if (contact.showInRoster()) {
2435					final String server = contact.getServer().toString();
2436					if (server != null && !hosts.contains(server)) {
2437						hosts.add(server);
2438					}
2439				}
2440			}
2441		}
2442		return hosts;
2443	}
2444
2445	public List<String> getKnownConferenceHosts() {
2446		final ArrayList<String> mucServers = new ArrayList<>();
2447		for (final Account account : accounts) {
2448			if (account.getXmppConnection() != null) {
2449				final String server = account.getXmppConnection().getMucServer();
2450				if (server != null && !mucServers.contains(server)) {
2451					mucServers.add(server);
2452				}
2453			}
2454		}
2455		return mucServers;
2456	}
2457
2458	public void sendMessagePacket(Account account, MessagePacket packet) {
2459		XmppConnection connection = account.getXmppConnection();
2460		if (connection != null) {
2461			connection.sendMessagePacket(packet);
2462		}
2463	}
2464
2465	public void sendPresencePacket(Account account, PresencePacket packet) {
2466		XmppConnection connection = account.getXmppConnection();
2467		if (connection != null) {
2468			connection.sendPresencePacket(packet);
2469		}
2470	}
2471
2472	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
2473		final XmppConnection connection = account.getXmppConnection();
2474		if (connection != null) {
2475			connection.sendIqPacket(packet, callback);
2476		}
2477	}
2478
2479	public void sendPresence(final Account account) {
2480		sendPresencePacket(account, mPresenceGenerator.sendPresence(account));
2481	}
2482
2483	public void sendOfflinePresence(final Account account) {
2484		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
2485	}
2486
2487	public MessageGenerator getMessageGenerator() {
2488		return this.mMessageGenerator;
2489	}
2490
2491	public PresenceGenerator getPresenceGenerator() {
2492		return this.mPresenceGenerator;
2493	}
2494
2495	public IqGenerator getIqGenerator() {
2496		return this.mIqGenerator;
2497	}
2498
2499	public IqParser getIqParser() {
2500		return this.mIqParser;
2501	}
2502
2503	public JingleConnectionManager getJingleConnectionManager() {
2504		return this.mJingleConnectionManager;
2505	}
2506
2507	public MessageArchiveService getMessageArchiveService() {
2508		return this.mMessageArchiveService;
2509	}
2510
2511	public List<Contact> findContacts(Jid jid) {
2512		ArrayList<Contact> contacts = new ArrayList<>();
2513		for (Account account : getAccounts()) {
2514			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2515				Contact contact = account.getRoster().getContactFromRoster(jid);
2516				if (contact != null) {
2517					contacts.add(contact);
2518				}
2519			}
2520		}
2521		return contacts;
2522	}
2523
2524	public NotificationService getNotificationService() {
2525		return this.mNotificationService;
2526	}
2527
2528	public HttpConnectionManager getHttpConnectionManager() {
2529		return this.mHttpConnectionManager;
2530	}
2531
2532	public void resendFailedMessages(final Message message) {
2533		final Collection<Message> messages = new ArrayList<>();
2534		Message current = message;
2535		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
2536			messages.add(current);
2537			if (current.mergeable(current.next())) {
2538				current = current.next();
2539			} else {
2540				break;
2541			}
2542		}
2543		for (final Message msg : messages) {
2544			msg.setTime(System.currentTimeMillis());
2545			markMessage(msg, Message.STATUS_WAITING);
2546			this.resendMessage(msg,false);
2547		}
2548	}
2549
2550	public void clearConversationHistory(final Conversation conversation) {
2551		conversation.clearMessages();
2552		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
2553		new Thread(new Runnable() {
2554			@Override
2555			public void run() {
2556				databaseBackend.deleteMessagesInConversation(conversation);
2557			}
2558		}).start();
2559	}
2560
2561	public void sendBlockRequest(final Blockable blockable) {
2562		if (blockable != null && blockable.getBlockedJid() != null) {
2563			final Jid jid = blockable.getBlockedJid();
2564			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid), new OnIqPacketReceived() {
2565
2566				@Override
2567				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2568					if (packet.getType() == IqPacket.TYPE.RESULT) {
2569						account.getBlocklist().add(jid);
2570						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
2571					}
2572				}
2573			});
2574		}
2575	}
2576
2577	public void sendUnblockRequest(final Blockable blockable) {
2578		if (blockable != null && blockable.getJid() != null) {
2579			final Jid jid = blockable.getBlockedJid();
2580			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
2581				@Override
2582				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2583					if (packet.getType() == IqPacket.TYPE.RESULT) {
2584						account.getBlocklist().remove(jid);
2585						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
2586					}
2587				}
2588			});
2589		}
2590	}
2591
2592	public interface OnMoreMessagesLoaded {
2593		public void onMoreMessagesLoaded(int count, Conversation conversation);
2594
2595		public void informUser(int r);
2596	}
2597
2598	public interface OnAccountPasswordChanged {
2599		public void onPasswordChangeSucceeded();
2600
2601		public void onPasswordChangeFailed();
2602	}
2603
2604	public interface OnAffiliationChanged {
2605		public void onAffiliationChangedSuccessful(Jid jid);
2606
2607		public void onAffiliationChangeFailed(Jid jid, int resId);
2608	}
2609
2610	public interface OnRoleChanged {
2611		public void onRoleChangedSuccessful(String nick);
2612
2613		public void onRoleChangeFailed(String nick, int resid);
2614	}
2615
2616	public interface OnConversationUpdate {
2617		public void onConversationUpdate();
2618	}
2619
2620	public interface OnAccountUpdate {
2621		public void onAccountUpdate();
2622	}
2623
2624	public interface OnRosterUpdate {
2625		public void onRosterUpdate();
2626	}
2627
2628	public interface OnMucRosterUpdate {
2629		public void onMucRosterUpdate();
2630	}
2631
2632	public interface OnConferenceOptionsPushed {
2633		public void onPushSucceeded();
2634
2635		public void onPushFailed();
2636	}
2637
2638	public interface OnShowErrorToast {
2639		void onShowErrorToast(int resId);
2640	}
2641
2642	public class XmppConnectionBinder extends Binder {
2643		public XmppConnectionService getService() {
2644			return XmppConnectionService.this;
2645		}
2646	}
2647}