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