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