XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import java.security.SecureRandom;
   4import java.text.SimpleDateFormat;
   5import java.util.ArrayList;
   6import java.util.Collections;
   7import java.util.Comparator;
   8import java.util.Date;
   9import java.util.Hashtable;
  10import java.util.List;
  11import java.util.Locale;
  12import java.util.TimeZone;
  13import java.util.concurrent.CopyOnWriteArrayList;
  14
  15import org.openintents.openpgp.util.OpenPgpApi;
  16import org.openintents.openpgp.util.OpenPgpServiceConnection;
  17
  18import de.duenndns.ssl.MemorizingTrustManager;
  19
  20import net.java.otr4j.OtrException;
  21import net.java.otr4j.session.Session;
  22import net.java.otr4j.session.SessionStatus;
  23import eu.siacs.conversations.Config;
  24import eu.siacs.conversations.R;
  25import eu.siacs.conversations.crypto.PgpEngine;
  26import eu.siacs.conversations.entities.Account;
  27import eu.siacs.conversations.entities.Bookmark;
  28import eu.siacs.conversations.entities.Contact;
  29import eu.siacs.conversations.entities.Conversation;
  30import eu.siacs.conversations.entities.Message;
  31import eu.siacs.conversations.entities.MucOptions;
  32import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  33import eu.siacs.conversations.entities.Presences;
  34import eu.siacs.conversations.generator.IqGenerator;
  35import eu.siacs.conversations.generator.MessageGenerator;
  36import eu.siacs.conversations.generator.PresenceGenerator;
  37import eu.siacs.conversations.parser.IqParser;
  38import eu.siacs.conversations.parser.MessageParser;
  39import eu.siacs.conversations.parser.PresenceParser;
  40import eu.siacs.conversations.persistance.DatabaseBackend;
  41import eu.siacs.conversations.persistance.FileBackend;
  42import eu.siacs.conversations.ui.UiCallback;
  43import eu.siacs.conversations.utils.CryptoHelper;
  44import eu.siacs.conversations.utils.ExceptionHelper;
  45import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  46import eu.siacs.conversations.utils.PRNGFixes;
  47import eu.siacs.conversations.utils.PhoneHelper;
  48import eu.siacs.conversations.utils.UIHelper;
  49import eu.siacs.conversations.xml.Element;
  50import eu.siacs.conversations.xmpp.OnBindListener;
  51import eu.siacs.conversations.xmpp.OnContactStatusChanged;
  52import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  53import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
  54import eu.siacs.conversations.xmpp.OnStatusChanged;
  55import eu.siacs.conversations.xmpp.XmppConnection;
  56import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  57import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
  58import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
  59import eu.siacs.conversations.xmpp.pep.Avatar;
  60import eu.siacs.conversations.xmpp.stanzas.IqPacket;
  61import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
  62import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
  63import android.annotation.SuppressLint;
  64import android.app.AlarmManager;
  65import android.app.PendingIntent;
  66import android.app.Service;
  67import android.content.Context;
  68import android.content.Intent;
  69import android.content.SharedPreferences;
  70import android.database.ContentObserver;
  71import android.graphics.Bitmap;
  72import android.net.ConnectivityManager;
  73import android.net.NetworkInfo;
  74import android.net.Uri;
  75import android.os.Binder;
  76import android.os.Bundle;
  77import android.os.IBinder;
  78import android.os.PowerManager;
  79import android.os.PowerManager.WakeLock;
  80import android.os.SystemClock;
  81import android.preference.PreferenceManager;
  82import android.provider.ContactsContract;
  83import android.util.Log;
  84
  85public class XmppConnectionService extends Service {
  86
  87	public DatabaseBackend databaseBackend;
  88	private FileBackend fileBackend;
  89
  90	public long startDate;
  91
  92	private static String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
  93
  94	private MemorizingTrustManager mMemorizingTrustManager;
  95
  96	private NotificationService mNotificationService;
  97
  98	private MessageParser mMessageParser = new MessageParser(this);
  99	private PresenceParser mPresenceParser = new PresenceParser(this);
 100	private IqParser mIqParser = new IqParser(this);
 101	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 102	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 103
 104	private List<Account> accounts;
 105	private CopyOnWriteArrayList<Conversation> conversations = null;
 106	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 107			this);
 108
 109	private OnConversationUpdate mOnConversationUpdate = null;
 110	private int convChangedListenerCount = 0;
 111	private OnAccountUpdate mOnAccountUpdate = null;
 112	private int accountChangedListenerCount = 0;
 113	private OnRosterUpdate mOnRosterUpdate = null;
 114	private int rosterChangedListenerCount = 0;
 115	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 116
 117		@Override
 118		public void onContactStatusChanged(Contact contact, boolean online) {
 119			Conversation conversation = find(getConversations(), contact);
 120			if (conversation != null) {
 121				conversation.endOtrIfNeeded();
 122				if (online && (contact.getPresences().size() == 1)) {
 123					sendUnsendMessages(conversation);
 124				}
 125			}
 126		}
 127	};
 128
 129	private SecureRandom mRandom;
 130
 131	private ContentObserver contactObserver = new ContentObserver(null) {
 132		@Override
 133		public void onChange(boolean selfChange) {
 134			super.onChange(selfChange);
 135			Intent intent = new Intent(getApplicationContext(),
 136					XmppConnectionService.class);
 137			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 138			startService(intent);
 139		}
 140	};
 141
 142	private final IBinder mBinder = new XmppConnectionBinder();
 143	private OnStatusChanged statusListener = new OnStatusChanged() {
 144
 145		@Override
 146		public void onStatusChanged(Account account) {
 147			XmppConnection connection = account.getXmppConnection();
 148			if (mOnAccountUpdate != null) {
 149				mOnAccountUpdate.onAccountUpdate();
 150				;
 151			}
 152			if (account.getStatus() == Account.STATUS_ONLINE) {
 153				for (Conversation conversation : account.pendingConferenceLeaves) {
 154					leaveMuc(conversation);
 155				}
 156				for (Conversation conversation : account.pendingConferenceJoins) {
 157					joinMuc(conversation);
 158				}
 159				mJingleConnectionManager.cancelInTransmission();
 160				List<Conversation> conversations = getConversations();
 161				for (int i = 0; i < conversations.size(); ++i) {
 162					if (conversations.get(i).getAccount() == account) {
 163						conversations.get(i).startOtrIfNeeded();
 164						sendUnsendMessages(conversations.get(i));
 165					}
 166				}
 167				if (connection != null && connection.getFeatures().csi()) {
 168					if (checkListeners()) {
 169						Log.d(Config.LOGTAG, account.getJid()
 170								+ " sending csi//inactive");
 171						connection.sendInactive();
 172					} else {
 173						Log.d(Config.LOGTAG, account.getJid()
 174								+ " sending csi//active");
 175						connection.sendActive();
 176					}
 177				}
 178				syncDirtyContacts(account);
 179				scheduleWakeupCall(Config.PING_MAX_INTERVAL, true);
 180			} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 181				resetSendingToWaiting(account);
 182				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 183					int timeToReconnect = mRandom.nextInt(50) + 10;
 184					scheduleWakeupCall(timeToReconnect, false);
 185				}
 186			} else if (account.getStatus() == Account.STATUS_REGISTRATION_SUCCESSFULL) {
 187				databaseBackend.updateAccount(account);
 188				reconnectAccount(account, true);
 189			} else if ((account.getStatus() != Account.STATUS_CONNECTING)
 190					&& (account.getStatus() != Account.STATUS_NO_INTERNET)) {
 191				if (connection != null) {
 192					int next = connection.getTimeToNextAttempt();
 193					Log.d(Config.LOGTAG, account.getJid()
 194							+ ": error connecting account. try again in "
 195							+ next + "s for the "
 196							+ (connection.getAttempt() + 1) + " time");
 197					scheduleWakeupCall((int) (next * 1.2), false);
 198				}
 199			}
 200			UIHelper.showErrorNotification(getApplicationContext(),
 201					getAccounts());
 202		}
 203	};
 204
 205	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 206
 207		@Override
 208		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 209			mJingleConnectionManager.deliverPacket(account, packet);
 210		}
 211	};
 212
 213	private OpenPgpServiceConnection pgpServiceConnection;
 214	private PgpEngine mPgpEngine = null;
 215	private Intent pingIntent;
 216	private PendingIntent pendingPingIntent = null;
 217	private WakeLock wakeLock;
 218	private PowerManager pm;
 219	private OnBindListener mOnBindListener = new OnBindListener() {
 220
 221		@Override
 222		public void onBind(final Account account) {
 223			account.getRoster().clearPresences();
 224			account.clearPresences(); // self presences
 225			account.pendingConferenceJoins.clear();
 226			account.pendingConferenceLeaves.clear();
 227			fetchRosterFromServer(account);
 228			fetchBookmarks(account);
 229			sendPresencePacket(account,
 230					mPresenceGenerator.sendPresence(account));
 231			connectMultiModeConversations(account);
 232			updateConversationUi();
 233		}
 234	};
 235
 236	private OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 237
 238		@Override
 239		public void onMessageAcknowledged(Account account, String uuid) {
 240			for (Conversation conversation : getConversations()) {
 241				if (conversation.getAccount() == account) {
 242					for (Message message : conversation.getMessages()) {
 243						if ((message.getStatus() == Message.STATUS_UNSEND || message
 244								.getStatus() == Message.STATUS_WAITING)
 245								&& message.getUuid().equals(uuid)) {
 246							markMessage(message, Message.STATUS_SEND);
 247							return;
 248						}
 249					}
 250				}
 251			}
 252		}
 253	};
 254
 255	public PgpEngine getPgpEngine() {
 256		if (pgpServiceConnection.isBound()) {
 257			if (this.mPgpEngine == null) {
 258				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 259						getApplicationContext(),
 260						pgpServiceConnection.getService()), this);
 261			}
 262			return mPgpEngine;
 263		} else {
 264			return null;
 265		}
 266
 267	}
 268
 269	public FileBackend getFileBackend() {
 270		return this.fileBackend;
 271	}
 272
 273	public Message attachImageToConversation(final Conversation conversation,
 274			final Uri uri, final UiCallback<Message> callback) {
 275		final Message message;
 276		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 277			message = new Message(conversation, "",
 278					Message.ENCRYPTION_DECRYPTED);
 279		} else {
 280			message = new Message(conversation, "",
 281					conversation.getNextEncryption(forceEncryption()));
 282		}
 283		message.setPresence(conversation.getNextPresence());
 284		message.setType(Message.TYPE_IMAGE);
 285		message.setStatus(Message.STATUS_OFFERED);
 286		new Thread(new Runnable() {
 287
 288			@Override
 289			public void run() {
 290				try {
 291					getFileBackend().copyImageToPrivateStorage(message, uri);
 292					if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 293						getPgpEngine().encrypt(message, callback);
 294					} else {
 295						callback.success(message);
 296					}
 297				} catch (FileBackend.ImageCopyException e) {
 298					callback.error(e.getResId(), message);
 299				}
 300			}
 301		}).start();
 302		return message;
 303	}
 304
 305	public Conversation find(Bookmark bookmark) {
 306		return find(bookmark.getAccount(), bookmark.getJid());
 307	}
 308
 309	public Conversation find(Account account, String jid) {
 310		return find(getConversations(), account, jid);
 311	}
 312
 313	public class XmppConnectionBinder extends Binder {
 314		public XmppConnectionService getService() {
 315			return XmppConnectionService.this;
 316		}
 317	}
 318
 319	@Override
 320	public int onStartCommand(Intent intent, int flags, int startId) {
 321		if ((intent != null)
 322				&& (ACTION_MERGE_PHONE_CONTACTS.equals(intent.getAction()))) {
 323			mergePhoneContactsWithRoster();
 324			return START_STICKY;
 325		} else if ((intent != null)
 326				&& (Intent.ACTION_SHUTDOWN.equals(intent.getAction()))) {
 327			logoutAndSave();
 328			return START_NOT_STICKY;
 329		}
 330		this.wakeLock.acquire();
 331		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 332				.getSystemService(Context.CONNECTIVITY_SERVICE);
 333		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 334		boolean isConnected = activeNetwork != null
 335				&& activeNetwork.isConnected();
 336
 337		for (Account account : accounts) {
 338			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 339				if (!isConnected) {
 340					account.setStatus(Account.STATUS_NO_INTERNET);
 341					if (statusListener != null) {
 342						statusListener.onStatusChanged(account);
 343					}
 344				} else {
 345					if (account.getStatus() == Account.STATUS_NO_INTERNET) {
 346						account.setStatus(Account.STATUS_OFFLINE);
 347						if (statusListener != null) {
 348							statusListener.onStatusChanged(account);
 349						}
 350					}
 351					if (account.getStatus() == Account.STATUS_ONLINE) {
 352						long lastReceived = account.getXmppConnection()
 353								.getLastPacketReceived();
 354						long lastSent = account.getXmppConnection()
 355								.getLastPingSent();
 356						if (lastSent - lastReceived >= Config.PING_TIMEOUT * 1000) {
 357							Log.d(Config.LOGTAG, account.getJid()
 358									+ ": ping timeout");
 359							this.reconnectAccount(account, true);
 360						} else if (SystemClock.elapsedRealtime() - lastReceived >= Config.PING_MIN_INTERVAL * 1000) {
 361							account.getXmppConnection().sendPing();
 362							this.scheduleWakeupCall(2, false);
 363						}
 364					} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 365						if (account.getXmppConnection() == null) {
 366							account.setXmppConnection(this
 367									.createConnection(account));
 368						}
 369						new Thread(account.getXmppConnection()).start();
 370					} else if ((account.getStatus() == Account.STATUS_CONNECTING)
 371							&& ((SystemClock.elapsedRealtime() - account
 372									.getXmppConnection().getLastConnect()) / 1000 >= Config.CONNECT_TIMEOUT)) {
 373						Log.d(Config.LOGTAG, account.getJid()
 374								+ ": time out during connect reconnecting");
 375						reconnectAccount(account, true);
 376					} else {
 377						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 378							reconnectAccount(account, true);
 379						}
 380					}
 381					// in any case. reschedule wakup call
 382					this.scheduleWakeupCall(Config.PING_MAX_INTERVAL, true);
 383				}
 384				if (mOnAccountUpdate != null) {
 385					mOnAccountUpdate.onAccountUpdate();
 386				}
 387			}
 388		}
 389		if (wakeLock.isHeld()) {
 390			try {
 391				wakeLock.release();
 392			} catch (RuntimeException re) {
 393			}
 394		}
 395		return START_STICKY;
 396	}
 397
 398	@SuppressLint("TrulyRandom")
 399	@Override
 400	public void onCreate() {
 401		ExceptionHelper.init(getApplicationContext());
 402		PRNGFixes.apply();
 403		this.mRandom = new SecureRandom();
 404		this.mMemorizingTrustManager = new MemorizingTrustManager(
 405				getApplicationContext());
 406		this.mNotificationService = new NotificationService(this);
 407		this.databaseBackend = DatabaseBackend
 408				.getInstance(getApplicationContext());
 409		this.fileBackend = new FileBackend(getApplicationContext());
 410		this.accounts = databaseBackend.getAccounts();
 411
 412		for (Account account : this.accounts) {
 413			this.databaseBackend.readRoster(account.getRoster());
 414		}
 415		this.mergePhoneContactsWithRoster();
 416		this.getConversations();
 417
 418		getContentResolver().registerContentObserver(
 419				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 420		this.pgpServiceConnection = new OpenPgpServiceConnection(
 421				getApplicationContext(), "org.sufficientlysecure.keychain");
 422		this.pgpServiceConnection.bindToService();
 423
 424		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 425		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
 426				"XmppConnectionService");
 427	}
 428
 429	@Override
 430	public void onDestroy() {
 431		super.onDestroy();
 432		this.logoutAndSave();
 433	}
 434
 435	@Override
 436	public void onTaskRemoved(Intent rootIntent) {
 437		super.onTaskRemoved(rootIntent);
 438		this.logoutAndSave();
 439	}
 440
 441	private void logoutAndSave() {
 442		for (Account account : accounts) {
 443			databaseBackend.writeRoster(account.getRoster());
 444			if (account.getXmppConnection() != null) {
 445				disconnect(account, false);
 446			}
 447		}
 448		Context context = getApplicationContext();
 449		AlarmManager alarmManager = (AlarmManager) context
 450				.getSystemService(Context.ALARM_SERVICE);
 451		Intent intent = new Intent(context, EventReceiver.class);
 452		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 453		Log.d(Config.LOGTAG, "good bye");
 454		stopSelf();
 455	}
 456
 457	protected void scheduleWakeupCall(int seconds, boolean ping) {
 458		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 459		Context context = getApplicationContext();
 460		AlarmManager alarmManager = (AlarmManager) context
 461				.getSystemService(Context.ALARM_SERVICE);
 462
 463		if (ping) {
 464			if (this.pingIntent == null) {
 465				this.pingIntent = new Intent(context, EventReceiver.class);
 466				this.pingIntent.setAction("ping");
 467				this.pingIntent.putExtra("time", timeToWake);
 468				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 469						this.pingIntent, 0);
 470				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 471						timeToWake, pendingPingIntent);
 472			} else {
 473				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
 474				if (scheduledTime < SystemClock.elapsedRealtime()
 475						|| (scheduledTime > timeToWake)) {
 476					this.pingIntent.putExtra("time", timeToWake);
 477					alarmManager.cancel(this.pendingPingIntent);
 478					this.pendingPingIntent = PendingIntent.getBroadcast(
 479							context, 0, this.pingIntent, 0);
 480					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 481							timeToWake, pendingPingIntent);
 482				}
 483			}
 484		} else {
 485			Intent intent = new Intent(context, EventReceiver.class);
 486			intent.setAction("ping_check");
 487			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 488					intent, 0);
 489			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 490					alarmIntent);
 491		}
 492
 493	}
 494
 495	public XmppConnection createConnection(Account account) {
 496		SharedPreferences sharedPref = getPreferences();
 497		account.setResource(sharedPref.getString("resource", "mobile")
 498				.toLowerCase(Locale.getDefault()));
 499		XmppConnection connection = new XmppConnection(account, this);
 500		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 501		connection.setOnStatusChangedListener(this.statusListener);
 502		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 503		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 504		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 505		connection.setOnBindListener(this.mOnBindListener);
 506		connection
 507				.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 508		return connection;
 509	}
 510
 511	synchronized public void sendMessage(Message message) {
 512		Account account = message.getConversation().getAccount();
 513		Conversation conv = message.getConversation();
 514		MessagePacket packet = null;
 515		boolean saveInDb = true;
 516		boolean send = false;
 517		if (account.getStatus() == Account.STATUS_ONLINE) {
 518			if (message.getType() == Message.TYPE_IMAGE) {
 519				if (message.getPresence() != null) {
 520					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 521						if (!conv.hasValidOtrSession()
 522								&& (message.getPresence() != null)) {
 523							conv.startOtrSession(this, message.getPresence(),
 524									true);
 525							message.setStatus(Message.STATUS_WAITING);
 526						} else if (conv.hasValidOtrSession()
 527								&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 528							mJingleConnectionManager
 529									.createNewConnection(message);
 530						} else if (message.getPresence() == null) {
 531							message.setStatus(Message.STATUS_WAITING);
 532						}
 533					} else {
 534						mJingleConnectionManager.createNewConnection(message);
 535					}
 536				} else {
 537					message.setStatus(Message.STATUS_WAITING);
 538				}
 539			} else {
 540				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 541					if (!conv.hasValidOtrSession()
 542							&& (message.getPresence() != null)) {
 543						conv.startOtrSession(this, message.getPresence(), true);
 544						message.setStatus(Message.STATUS_WAITING);
 545					} else if (conv.hasValidOtrSession()
 546							&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 547						message.setPresence(conv.getOtrSession().getSessionID()
 548								.getUserID());
 549						packet = mMessageGenerator.generateOtrChat(message);
 550						send = true;
 551
 552					} else if (message.getPresence() == null) {
 553						message.setStatus(Message.STATUS_WAITING);
 554					}
 555				} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 556					message.getConversation().endOtrIfNeeded();
 557					failWaitingOtrMessages(message.getConversation());
 558					packet = mMessageGenerator.generatePgpChat(message);
 559					send = true;
 560				} else {
 561					message.getConversation().endOtrIfNeeded();
 562					failWaitingOtrMessages(message.getConversation());
 563					packet = mMessageGenerator.generateChat(message);
 564					send = true;
 565				}
 566			}
 567		} else {
 568			message.setStatus(Message.STATUS_WAITING);
 569			if (message.getType() == Message.TYPE_TEXT) {
 570				if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 571					String pgpBody = message.getEncryptedBody();
 572					String decryptedBody = message.getBody();
 573					message.setBody(pgpBody);
 574					message.setEncryption(Message.ENCRYPTION_PGP);
 575					databaseBackend.createMessage(message);
 576					saveInDb = false;
 577					message.setBody(decryptedBody);
 578					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 579				} else if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 580					if (conv.hasValidOtrSession()) {
 581						message.setPresence(conv.getOtrSession().getSessionID()
 582								.getUserID());
 583					} else if (!conv.hasValidOtrSession()
 584							&& message.getPresence() != null) {
 585						conv.startOtrSession(this, message.getPresence(), false);
 586					}
 587				}
 588			}
 589
 590		}
 591		conv.getMessages().add(message);
 592		if (!account.getXmppConnection().getFeatures().sm()
 593				&& conv.getMode() != Conversation.MODE_MULTI) {
 594			message.setStatus(Message.STATUS_SEND);
 595		}
 596		if (saveInDb) {
 597			if (message.getEncryption() == Message.ENCRYPTION_NONE
 598					|| saveEncryptedMessages()) {
 599				databaseBackend.createMessage(message);
 600			}
 601		}
 602		if ((send) && (packet != null)) {
 603			sendMessagePacket(account, packet);
 604		}
 605		updateConversationUi();
 606	}
 607
 608	private void sendUnsendMessages(Conversation conversation) {
 609		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 610			int status = conversation.getMessages().get(i).getStatus();
 611			if (status == Message.STATUS_WAITING) {
 612				resendMessage(conversation.getMessages().get(i));
 613			}
 614		}
 615	}
 616
 617	private void resendMessage(Message message) {
 618		Account account = message.getConversation().getAccount();
 619		MessagePacket packet = null;
 620		if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 621			Presences presences = message.getConversation().getContact()
 622					.getPresences();
 623			if (!message.getConversation().hasValidOtrSession()) {
 624				if ((message.getPresence() != null)
 625						&& (presences.has(message.getPresence()))) {
 626					message.getConversation().startOtrSession(this,
 627							message.getPresence(), true);
 628				} else {
 629					if (presences.size() == 1) {
 630						String presence = presences.asStringArray()[0];
 631						message.getConversation().startOtrSession(this,
 632								presence, true);
 633					}
 634				}
 635			} else {
 636				if (message.getConversation().getOtrSession()
 637						.getSessionStatus() == SessionStatus.ENCRYPTED) {
 638					if (message.getType() == Message.TYPE_TEXT) {
 639						packet = mMessageGenerator.generateOtrChat(message,
 640								true);
 641					} else if (message.getType() == Message.TYPE_IMAGE) {
 642						mJingleConnectionManager.createNewConnection(message);
 643					}
 644				}
 645			}
 646		} else if (message.getType() == Message.TYPE_TEXT) {
 647			if (message.getEncryption() == Message.ENCRYPTION_NONE) {
 648				packet = mMessageGenerator.generateChat(message, true);
 649			} else if ((message.getEncryption() == Message.ENCRYPTION_DECRYPTED)
 650					|| (message.getEncryption() == Message.ENCRYPTION_PGP)) {
 651				packet = mMessageGenerator.generatePgpChat(message, true);
 652			}
 653		} else if (message.getType() == Message.TYPE_IMAGE) {
 654			Presences presences = message.getConversation().getContact()
 655					.getPresences();
 656			if ((message.getPresence() != null)
 657					&& (presences.has(message.getPresence()))) {
 658				markMessage(message, Message.STATUS_OFFERED);
 659				mJingleConnectionManager.createNewConnection(message);
 660			} else {
 661				if (presences.size() == 1) {
 662					String presence = presences.asStringArray()[0];
 663					message.setPresence(presence);
 664					markMessage(message, Message.STATUS_OFFERED);
 665					mJingleConnectionManager.createNewConnection(message);
 666				}
 667			}
 668		}
 669		if (packet != null) {
 670			if (!account.getXmppConnection().getFeatures().sm()
 671					&& message.getConversation().getMode() != Conversation.MODE_MULTI) {
 672				markMessage(message, Message.STATUS_SEND);
 673			} else {
 674				markMessage(message, Message.STATUS_UNSEND);
 675			}
 676			sendMessagePacket(account, packet);
 677		}
 678	}
 679
 680	public void fetchRosterFromServer(Account account) {
 681		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 682		if (!"".equals(account.getRosterVersion())) {
 683			Log.d(Config.LOGTAG, account.getJid()
 684					+ ": fetching roster version " + account.getRosterVersion());
 685		} else {
 686			Log.d(Config.LOGTAG, account.getJid() + ": fetching roster");
 687		}
 688		iqPacket.query("jabber:iq:roster").setAttribute("ver",
 689				account.getRosterVersion());
 690		account.getXmppConnection().sendIqPacket(iqPacket,
 691				new OnIqPacketReceived() {
 692
 693					@Override
 694					public void onIqPacketReceived(final Account account,
 695							IqPacket packet) {
 696						Element query = packet.findChild("query");
 697						if (query != null) {
 698							account.getRoster().markAllAsNotInRoster();
 699							mIqParser.rosterItems(account, query);
 700						}
 701					}
 702				});
 703	}
 704
 705	public void fetchBookmarks(Account account) {
 706		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 707		Element query = iqPacket.query("jabber:iq:private");
 708		query.addChild("storage", "storage:bookmarks");
 709		OnIqPacketReceived callback = new OnIqPacketReceived() {
 710
 711			@Override
 712			public void onIqPacketReceived(Account account, IqPacket packet) {
 713				Element query = packet.query();
 714				List<Bookmark> bookmarks = new CopyOnWriteArrayList<Bookmark>();
 715				Element storage = query.findChild("storage",
 716						"storage:bookmarks");
 717				if (storage != null) {
 718					for (Element item : storage.getChildren()) {
 719						if (item.getName().equals("conference")) {
 720							Bookmark bookmark = Bookmark.parse(item, account);
 721							bookmarks.add(bookmark);
 722							Conversation conversation = find(bookmark);
 723							if (conversation != null) {
 724								conversation.setBookmark(bookmark);
 725							} else {
 726								if (bookmark.autojoin()) {
 727									conversation = findOrCreateConversation(
 728											account, bookmark.getJid(), true);
 729									conversation.setBookmark(bookmark);
 730									joinMuc(conversation);
 731								}
 732							}
 733						}
 734					}
 735				}
 736				account.setBookmarks(bookmarks);
 737			}
 738		};
 739		sendIqPacket(account, iqPacket, callback);
 740
 741	}
 742
 743	public void pushBookmarks(Account account) {
 744		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_SET);
 745		Element query = iqPacket.query("jabber:iq:private");
 746		Element storage = query.addChild("storage", "storage:bookmarks");
 747		for (Bookmark bookmark : account.getBookmarks()) {
 748			storage.addChild(bookmark.toElement());
 749		}
 750		sendIqPacket(account, iqPacket, null);
 751	}
 752
 753	private void mergePhoneContactsWithRoster() {
 754		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 755				new OnPhoneContactsLoadedListener() {
 756					@Override
 757					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
 758						for (Account account : accounts) {
 759							account.getRoster().clearSystemAccounts();
 760						}
 761						for (Bundle phoneContact : phoneContacts) {
 762							for (Account account : accounts) {
 763								String jid = phoneContact.getString("jid");
 764								Contact contact = account.getRoster()
 765										.getContact(jid);
 766								String systemAccount = phoneContact
 767										.getInt("phoneid")
 768										+ "#"
 769										+ phoneContact.getString("lookup");
 770								contact.setSystemAccount(systemAccount);
 771								contact.setPhotoUri(phoneContact
 772										.getString("photouri"));
 773								contact.setSystemName(phoneContact
 774										.getString("displayname"));
 775							}
 776						}
 777					}
 778				});
 779	}
 780
 781	public List<Conversation> getConversations() {
 782		if (this.conversations == null) {
 783			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
 784			for (Account account : this.accounts) {
 785				accountLookupTable.put(account.getUuid(), account);
 786			}
 787			this.conversations = databaseBackend
 788					.getConversations(Conversation.STATUS_AVAILABLE);
 789			for (Conversation conv : this.conversations) {
 790				Account account = accountLookupTable.get(conv.getAccountUuid());
 791				conv.setAccount(account);
 792				conv.setMessages(databaseBackend.getMessages(conv, 50));
 793			}
 794		}
 795
 796		return this.conversations;
 797	}
 798
 799	public void populateWithOrderedConversations(List<Conversation> list) {
 800		populateWithOrderedConversations(list, true);
 801	}
 802
 803	public void populateWithOrderedConversations(List<Conversation> list,
 804			boolean includeConferences) {
 805		list.clear();
 806		if (includeConferences) {
 807			list.addAll(getConversations());
 808		} else {
 809			for (Conversation conversation : getConversations()) {
 810				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 811					list.add(conversation);
 812				}
 813			}
 814		}
 815		Collections.sort(list, new Comparator<Conversation>() {
 816			@Override
 817			public int compare(Conversation lhs, Conversation rhs) {
 818				Message left = lhs.getLatestMessage();
 819				Message right = rhs.getLatestMessage();
 820				if (left.getTimeSent() > right.getTimeSent()) {
 821					return -1;
 822				} else if (left.getTimeSent() < right.getTimeSent()) {
 823					return 1;
 824				} else {
 825					return 0;
 826				}
 827			}
 828		});
 829	}
 830
 831	public int loadMoreMessages(Conversation conversation, long timestamp) {
 832		List<Message> messages = databaseBackend.getMessages(conversation, 50,
 833				timestamp);
 834		for (Message message : messages) {
 835			message.setConversation(conversation);
 836		}
 837		conversation.getMessages().addAll(0, messages);
 838		return messages.size();
 839	}
 840
 841	public List<Account> getAccounts() {
 842		return this.accounts;
 843	}
 844
 845	public Conversation find(List<Conversation> haystack, Contact contact) {
 846		for (Conversation conversation : haystack) {
 847			if (conversation.getContact() == contact) {
 848				return conversation;
 849			}
 850		}
 851		return null;
 852	}
 853
 854	public Conversation find(List<Conversation> haystack, Account account,
 855			String jid) {
 856		for (Conversation conversation : haystack) {
 857			if ((account == null || conversation.getAccount().equals(account))
 858					&& (conversation.getContactJid().split("/", 2)[0]
 859							.equals(jid))) {
 860				return conversation;
 861			}
 862		}
 863		return null;
 864	}
 865
 866	public Conversation findOrCreateConversation(Account account, String jid,
 867			boolean muc) {
 868		Conversation conversation = find(account, jid);
 869		if (conversation != null) {
 870			return conversation;
 871		}
 872		conversation = databaseBackend.findConversation(account, jid);
 873		if (conversation != null) {
 874			conversation.setStatus(Conversation.STATUS_AVAILABLE);
 875			conversation.setAccount(account);
 876			if (muc) {
 877				conversation.setMode(Conversation.MODE_MULTI);
 878			} else {
 879				conversation.setMode(Conversation.MODE_SINGLE);
 880			}
 881			conversation.setMessages(databaseBackend.getMessages(conversation,
 882					50));
 883			this.databaseBackend.updateConversation(conversation);
 884		} else {
 885			String conversationName;
 886			Contact contact = account.getRoster().getContact(jid);
 887			if (contact != null) {
 888				conversationName = contact.getDisplayName();
 889			} else {
 890				conversationName = jid.split("@")[0];
 891			}
 892			if (muc) {
 893				conversation = new Conversation(conversationName, account, jid,
 894						Conversation.MODE_MULTI);
 895			} else {
 896				conversation = new Conversation(conversationName, account, jid,
 897						Conversation.MODE_SINGLE);
 898			}
 899			this.databaseBackend.createConversation(conversation);
 900		}
 901		this.conversations.add(conversation);
 902		updateConversationUi();
 903		return conversation;
 904	}
 905
 906	public void archiveConversation(Conversation conversation) {
 907		if (conversation.getMode() == Conversation.MODE_MULTI) {
 908			Bookmark bookmark = conversation.getBookmark();
 909			if (bookmark != null && bookmark.autojoin()) {
 910				bookmark.setAutojoin(false);
 911				pushBookmarks(bookmark.getAccount());
 912			}
 913			leaveMuc(conversation);
 914		} else {
 915			conversation.endOtrIfNeeded();
 916		}
 917		this.databaseBackend.updateConversation(conversation);
 918		this.conversations.remove(conversation);
 919		updateConversationUi();
 920	}
 921
 922	public void clearConversationHistory(Conversation conversation) {
 923		this.databaseBackend.deleteMessagesInConversation(conversation);
 924		this.fileBackend.removeFiles(conversation);
 925		conversation.getMessages().clear();
 926		updateConversationUi();
 927	}
 928
 929	public int getConversationCount() {
 930		return this.databaseBackend.getConversationCount();
 931	}
 932
 933	public void createAccount(Account account) {
 934		databaseBackend.createAccount(account);
 935		this.accounts.add(account);
 936		this.reconnectAccount(account, false);
 937		updateAccountUi();
 938	}
 939
 940	public void updateAccount(Account account) {
 941		this.statusListener.onStatusChanged(account);
 942		databaseBackend.updateAccount(account);
 943		reconnectAccount(account, false);
 944		updateAccountUi();
 945		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
 946	}
 947
 948	public void deleteAccount(Account account) {
 949		for (Conversation conversation : conversations) {
 950			if (conversation.getAccount() == account) {
 951				if (conversation.getMode() == Conversation.MODE_MULTI) {
 952					leaveMuc(conversation);
 953				} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
 954					conversation.endOtrIfNeeded();
 955				}
 956				conversations.remove(conversation);
 957			}
 958		}
 959		if (account.getXmppConnection() != null) {
 960			this.disconnect(account, true);
 961		}
 962		databaseBackend.deleteAccount(account);
 963		this.accounts.remove(account);
 964		updateAccountUi();
 965		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
 966	}
 967
 968	public void setOnConversationListChangedListener(
 969			OnConversationUpdate listener) {
 970		if (checkListeners()) {
 971			switchToForeground();
 972		}
 973		this.mOnConversationUpdate = listener;
 974		this.convChangedListenerCount++;
 975	}
 976
 977	public void removeOnConversationListChangedListener() {
 978		this.convChangedListenerCount--;
 979		if (this.convChangedListenerCount == 0) {
 980			this.mOnConversationUpdate = null;
 981			if (checkListeners()) {
 982				switchToBackground();
 983			}
 984		}
 985	}
 986
 987	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
 988		if (checkListeners()) {
 989			switchToForeground();
 990		}
 991		this.mOnAccountUpdate = listener;
 992		this.accountChangedListenerCount++;
 993	}
 994
 995	public void removeOnAccountListChangedListener() {
 996		this.accountChangedListenerCount--;
 997		if (this.accountChangedListenerCount == 0) {
 998			this.mOnAccountUpdate = null;
 999			if (checkListeners()) {
1000				switchToBackground();
1001			}
1002		}
1003	}
1004
1005	public void setOnRosterUpdateListener(OnRosterUpdate listener) {
1006		if (checkListeners()) {
1007			switchToForeground();
1008		}
1009		this.mOnRosterUpdate = listener;
1010		this.rosterChangedListenerCount++;
1011	}
1012
1013	public void removeOnRosterUpdateListener() {
1014		this.rosterChangedListenerCount--;
1015		if (this.rosterChangedListenerCount == 0) {
1016			this.mOnRosterUpdate = null;
1017			if (checkListeners()) {
1018				switchToBackground();
1019			}
1020		}
1021	}
1022
1023	private boolean checkListeners() {
1024		return (this.mOnAccountUpdate == null
1025				&& this.mOnConversationUpdate == null && this.mOnRosterUpdate == null);
1026	}
1027
1028	private void switchToForeground() {
1029		for (Account account : getAccounts()) {
1030			if (account.getStatus() == Account.STATUS_ONLINE) {
1031				XmppConnection connection = account.getXmppConnection();
1032				if (connection != null && connection.getFeatures().csi()) {
1033					connection.sendActive();
1034					Log.d(Config.LOGTAG, account.getJid()
1035							+ " sending csi//active");
1036				}
1037			}
1038		}
1039	}
1040
1041	private void switchToBackground() {
1042		for (Account account : getAccounts()) {
1043			if (account.getStatus() == Account.STATUS_ONLINE) {
1044				XmppConnection connection = account.getXmppConnection();
1045				if (connection != null && connection.getFeatures().csi()) {
1046					connection.sendInactive();
1047					Log.d(Config.LOGTAG, account.getJid()
1048							+ " sending csi//inactive");
1049				}
1050			}
1051		}
1052	}
1053
1054	public void connectMultiModeConversations(Account account) {
1055		List<Conversation> conversations = getConversations();
1056		for (int i = 0; i < conversations.size(); i++) {
1057			Conversation conversation = conversations.get(i);
1058			if ((conversation.getMode() == Conversation.MODE_MULTI)
1059					&& (conversation.getAccount() == account)) {
1060				joinMuc(conversation);
1061			}
1062		}
1063	}
1064
1065	public void joinMuc(Conversation conversation) {
1066		Account account = conversation.getAccount();
1067		account.pendingConferenceJoins.remove(conversation);
1068		account.pendingConferenceLeaves.remove(conversation);
1069		if (account.getStatus() == Account.STATUS_ONLINE) {
1070			Log.d(Config.LOGTAG,
1071					"joining conversation " + conversation.getContactJid());
1072			String nick = conversation.getMucOptions().getProposedNick();
1073			conversation.getMucOptions().setJoinNick(nick);
1074			PresencePacket packet = new PresencePacket();
1075			String joinJid = conversation.getMucOptions().getJoinJid();
1076			packet.setAttribute("to", conversation.getMucOptions().getJoinJid());
1077			Element x = new Element("x");
1078			x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1079			if (conversation.getMucOptions().getPassword() != null) {
1080				Element password = x.addChild("password");
1081				password.setContent(conversation.getMucOptions().getPassword());
1082			}
1083			String sig = account.getPgpSignature();
1084			if (sig != null) {
1085				packet.addChild("status").setContent("online");
1086				packet.addChild("x", "jabber:x:signed").setContent(sig);
1087			}
1088			if (conversation.getMessages().size() != 0) {
1089				final SimpleDateFormat mDateFormat = new SimpleDateFormat(
1090						"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
1091				mDateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
1092				Date date = new Date(conversation.getLatestMessage()
1093						.getTimeSent() + 1000);
1094				x.addChild("history").setAttribute("since",
1095						mDateFormat.format(date));
1096			}
1097			packet.addChild(x);
1098			sendPresencePacket(account, packet);
1099			if (!joinJid.equals(conversation.getContactJid())) {
1100				conversation.setContactJid(joinJid);
1101				databaseBackend.updateConversation(conversation);
1102			}
1103		} else {
1104			account.pendingConferenceJoins.add(conversation);
1105		}
1106	}
1107
1108	private OnRenameListener renameListener = null;
1109	private IqGenerator mIqGenerator = new IqGenerator(this);
1110
1111	public void setOnRenameListener(OnRenameListener listener) {
1112		this.renameListener = listener;
1113	}
1114
1115	public void providePasswordForMuc(Conversation conversation, String password) {
1116		if (conversation.getMode() == Conversation.MODE_MULTI) {
1117			conversation.getMucOptions().setPassword(password);
1118			if (conversation.getBookmark() != null
1119					&& conversation.getMucOptions().isPasswordChanged()) {
1120				if (!conversation.getBookmark().autojoin()) {
1121					conversation.getBookmark().setAutojoin(true);
1122				}
1123				pushBookmarks(conversation.getAccount());
1124			}
1125			databaseBackend.updateConversation(conversation);
1126			joinMuc(conversation);
1127		}
1128	}
1129
1130	public void renameInMuc(final Conversation conversation, final String nick) {
1131		final MucOptions options = conversation.getMucOptions();
1132		options.setJoinNick(nick);
1133		if (options.online()) {
1134			Account account = conversation.getAccount();
1135			options.setOnRenameListener(new OnRenameListener() {
1136
1137				@Override
1138				public void onRename(boolean success) {
1139					if (renameListener != null) {
1140						renameListener.onRename(success);
1141					}
1142					if (success) {
1143						conversation.setContactJid(conversation.getMucOptions()
1144								.getJoinJid());
1145						databaseBackend.updateConversation(conversation);
1146						Bookmark bookmark = conversation.getBookmark();
1147						if (bookmark != null) {
1148							bookmark.setNick(nick);
1149							pushBookmarks(bookmark.getAccount());
1150						}
1151					}
1152				}
1153			});
1154			options.flagAboutToRename();
1155			PresencePacket packet = new PresencePacket();
1156			packet.setAttribute("to", options.getJoinJid());
1157			packet.setAttribute("from", conversation.getAccount().getFullJid());
1158
1159			String sig = account.getPgpSignature();
1160			if (sig != null) {
1161				packet.addChild("status").setContent("online");
1162				packet.addChild("x", "jabber:x:signed").setContent(sig);
1163			}
1164			sendPresencePacket(account, packet);
1165		} else {
1166			conversation.setContactJid(options.getJoinJid());
1167			databaseBackend.updateConversation(conversation);
1168			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
1169				Bookmark bookmark = conversation.getBookmark();
1170				if (bookmark != null) {
1171					bookmark.setNick(nick);
1172					pushBookmarks(bookmark.getAccount());
1173				}
1174				joinMuc(conversation);
1175			}
1176		}
1177	}
1178
1179	public void leaveMuc(Conversation conversation) {
1180		Account account = conversation.getAccount();
1181		account.pendingConferenceJoins.remove(conversation);
1182		account.pendingConferenceLeaves.remove(conversation);
1183		if (account.getStatus() == Account.STATUS_ONLINE) {
1184			PresencePacket packet = new PresencePacket();
1185			packet.setAttribute("to", conversation.getMucOptions().getJoinJid());
1186			packet.setAttribute("from", conversation.getAccount().getFullJid());
1187			packet.setAttribute("type", "unavailable");
1188			sendPresencePacket(conversation.getAccount(), packet);
1189			conversation.getMucOptions().setOffline();
1190			conversation.deregisterWithBookmark();
1191			Log.d(Config.LOGTAG, conversation.getAccount().getJid()
1192					+ " leaving muc " + conversation.getContactJid());
1193		} else {
1194			account.pendingConferenceLeaves.add(conversation);
1195		}
1196	}
1197
1198	public void disconnect(Account account, boolean force) {
1199		if ((account.getStatus() == Account.STATUS_ONLINE)
1200				|| (account.getStatus() == Account.STATUS_DISABLED)) {
1201			if (!force) {
1202				List<Conversation> conversations = getConversations();
1203				for (int i = 0; i < conversations.size(); i++) {
1204					Conversation conversation = conversations.get(i);
1205					if (conversation.getAccount() == account) {
1206						if (conversation.getMode() == Conversation.MODE_MULTI) {
1207							leaveMuc(conversation);
1208						} else {
1209							conversation.endOtrIfNeeded();
1210						}
1211					}
1212				}
1213			}
1214			account.getXmppConnection().disconnect(force);
1215		}
1216	}
1217
1218	@Override
1219	public IBinder onBind(Intent intent) {
1220		return mBinder;
1221	}
1222
1223	public void updateMessage(Message message) {
1224		databaseBackend.updateMessage(message);
1225	}
1226
1227	protected void syncDirtyContacts(Account account) {
1228		for (Contact contact : account.getRoster().getContacts()) {
1229			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1230				pushContactToServer(contact);
1231			}
1232			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1233				deleteContactOnServer(contact);
1234			}
1235		}
1236	}
1237
1238	public void createContact(Contact contact) {
1239		SharedPreferences sharedPref = getPreferences();
1240		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1241		if (autoGrant) {
1242			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1243			contact.setOption(Contact.Options.ASKING);
1244		}
1245		pushContactToServer(contact);
1246	}
1247
1248	public void onOtrSessionEstablished(Conversation conversation) {
1249		Account account = conversation.getAccount();
1250		List<Message> messages = conversation.getMessages();
1251		Session otrSession = conversation.getOtrSession();
1252		Log.d(Config.LOGTAG,
1253				account.getJid() + " otr session established with "
1254						+ conversation.getContactJid() + "/"
1255						+ otrSession.getSessionID().getUserID());
1256		for (int i = 0; i < messages.size(); ++i) {
1257			Message msg = messages.get(i);
1258			if ((msg.getStatus() == Message.STATUS_UNSEND || msg.getStatus() == Message.STATUS_WAITING)
1259					&& (msg.getEncryption() == Message.ENCRYPTION_OTR)) {
1260				msg.setPresence(otrSession.getSessionID().getUserID());
1261				if (msg.getType() == Message.TYPE_TEXT) {
1262					MessagePacket outPacket = mMessageGenerator
1263							.generateOtrChat(msg, true);
1264					if (outPacket != null) {
1265						msg.setStatus(Message.STATUS_SEND);
1266						databaseBackend.updateMessage(msg);
1267						sendMessagePacket(account, outPacket);
1268					}
1269				} else if (msg.getType() == Message.TYPE_IMAGE) {
1270					mJingleConnectionManager.createNewConnection(msg);
1271				}
1272			}
1273		}
1274		updateConversationUi();
1275	}
1276
1277	public boolean renewSymmetricKey(Conversation conversation) {
1278		Account account = conversation.getAccount();
1279		byte[] symmetricKey = new byte[32];
1280		this.mRandom.nextBytes(symmetricKey);
1281		Session otrSession = conversation.getOtrSession();
1282		if (otrSession != null) {
1283			MessagePacket packet = new MessagePacket();
1284			packet.setType(MessagePacket.TYPE_CHAT);
1285			packet.setFrom(account.getFullJid());
1286			packet.addChild("private", "urn:xmpp:carbons:2");
1287			packet.addChild("no-copy", "urn:xmpp:hints");
1288			packet.setTo(otrSession.getSessionID().getAccountID() + "/"
1289					+ otrSession.getSessionID().getUserID());
1290			try {
1291				packet.setBody(otrSession
1292						.transformSending(CryptoHelper.FILETRANSFER
1293								+ CryptoHelper.bytesToHex(symmetricKey)));
1294				sendMessagePacket(account, packet);
1295				conversation.setSymmetricKey(symmetricKey);
1296				return true;
1297			} catch (OtrException e) {
1298				return false;
1299			}
1300		}
1301		return false;
1302	}
1303
1304	public void pushContactToServer(Contact contact) {
1305		contact.resetOption(Contact.Options.DIRTY_DELETE);
1306		contact.setOption(Contact.Options.DIRTY_PUSH);
1307		Account account = contact.getAccount();
1308		if (account.getStatus() == Account.STATUS_ONLINE) {
1309			boolean ask = contact.getOption(Contact.Options.ASKING);
1310			boolean sendUpdates = contact
1311					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
1312					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
1313			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1314			iq.query("jabber:iq:roster").addChild(contact.asElement());
1315			account.getXmppConnection().sendIqPacket(iq, null);
1316			if (sendUpdates) {
1317				sendPresencePacket(account,
1318						mPresenceGenerator.sendPresenceUpdatesTo(contact));
1319			}
1320			if (ask) {
1321				sendPresencePacket(account,
1322						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
1323			}
1324		}
1325	}
1326
1327	public void publishAvatar(Account account, Uri image,
1328			final UiCallback<Avatar> callback) {
1329		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
1330		final int size = Config.AVATAR_SIZE;
1331		final Avatar avatar = getFileBackend()
1332				.getPepAvatar(image, size, format);
1333		if (avatar != null) {
1334			avatar.height = size;
1335			avatar.width = size;
1336			if (format.equals(Bitmap.CompressFormat.WEBP)) {
1337				avatar.type = "image/webp";
1338			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1339				avatar.type = "image/jpeg";
1340			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
1341				avatar.type = "image/png";
1342			}
1343			if (!getFileBackend().save(avatar)) {
1344				callback.error(R.string.error_saving_avatar, avatar);
1345				return;
1346			}
1347			IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
1348			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1349
1350				@Override
1351				public void onIqPacketReceived(Account account, IqPacket result) {
1352					if (result.getType() == IqPacket.TYPE_RESULT) {
1353						IqPacket packet = XmppConnectionService.this.mIqGenerator
1354								.publishAvatarMetadata(avatar);
1355						sendIqPacket(account, packet, new OnIqPacketReceived() {
1356
1357							@Override
1358							public void onIqPacketReceived(Account account,
1359									IqPacket result) {
1360								if (result.getType() == IqPacket.TYPE_RESULT) {
1361									if (account.setAvatar(avatar.getFilename())) {
1362										databaseBackend.updateAccount(account);
1363									}
1364									callback.success(avatar);
1365								} else {
1366									callback.error(
1367											R.string.error_publish_avatar_server_reject,
1368											avatar);
1369								}
1370							}
1371						});
1372					} else {
1373						callback.error(
1374								R.string.error_publish_avatar_server_reject,
1375								avatar);
1376					}
1377				}
1378			});
1379		} else {
1380			callback.error(R.string.error_publish_avatar_converting, null);
1381		}
1382	}
1383
1384	public void fetchAvatar(Account account, Avatar avatar) {
1385		fetchAvatar(account, avatar, null);
1386	}
1387
1388	public void fetchAvatar(Account account, final Avatar avatar,
1389			final UiCallback<Avatar> callback) {
1390		IqPacket packet = this.mIqGenerator.retrieveAvatar(avatar);
1391		sendIqPacket(account, packet, new OnIqPacketReceived() {
1392
1393			@Override
1394			public void onIqPacketReceived(Account account, IqPacket result) {
1395				final String ERROR = account.getJid()
1396						+ ": fetching avatar for " + avatar.owner + " failed ";
1397				if (result.getType() == IqPacket.TYPE_RESULT) {
1398					avatar.image = mIqParser.avatarData(result);
1399					if (avatar.image != null) {
1400						if (getFileBackend().save(avatar)) {
1401							if (account.getJid().equals(avatar.owner)) {
1402								if (account.setAvatar(avatar.getFilename())) {
1403									databaseBackend.updateAccount(account);
1404								}
1405							} else {
1406								Contact contact = account.getRoster()
1407										.getContact(avatar.owner);
1408								contact.setAvatar(avatar.getFilename());
1409							}
1410							if (callback != null) {
1411								callback.success(avatar);
1412							}
1413							Log.d(Config.LOGTAG, account.getJid()
1414									+ ": succesfully fetched avatar for "
1415									+ avatar.owner);
1416							return;
1417						}
1418					} else {
1419
1420						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
1421					}
1422				} else {
1423					Element error = result.findChild("error");
1424					if (error == null) {
1425						Log.d(Config.LOGTAG, ERROR + "(server error)");
1426					} else {
1427						Log.d(Config.LOGTAG, ERROR + error.toString());
1428					}
1429				}
1430				if (callback != null) {
1431					callback.error(0, null);
1432				}
1433
1434			}
1435		});
1436	}
1437
1438	public void checkForAvatar(Account account,
1439			final UiCallback<Avatar> callback) {
1440		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
1441		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1442
1443			@Override
1444			public void onIqPacketReceived(Account account, IqPacket packet) {
1445				if (packet.getType() == IqPacket.TYPE_RESULT) {
1446					Element pubsub = packet.findChild("pubsub",
1447							"http://jabber.org/protocol/pubsub");
1448					if (pubsub != null) {
1449						Element items = pubsub.findChild("items");
1450						if (items != null) {
1451							Avatar avatar = Avatar.parseMetadata(items);
1452							if (avatar != null) {
1453								avatar.owner = account.getJid();
1454								if (fileBackend.isAvatarCached(avatar)) {
1455									if (account.setAvatar(avatar.getFilename())) {
1456										databaseBackend.updateAccount(account);
1457									}
1458									callback.success(avatar);
1459								} else {
1460									fetchAvatar(account, avatar, callback);
1461								}
1462								return;
1463							}
1464						}
1465					}
1466				}
1467				callback.error(0, null);
1468			}
1469		});
1470	}
1471
1472	public void deleteContactOnServer(Contact contact) {
1473		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
1474		contact.resetOption(Contact.Options.DIRTY_PUSH);
1475		contact.setOption(Contact.Options.DIRTY_DELETE);
1476		Account account = contact.getAccount();
1477		if (account.getStatus() == Account.STATUS_ONLINE) {
1478			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1479			Element item = iq.query("jabber:iq:roster").addChild("item");
1480			item.setAttribute("jid", contact.getJid());
1481			item.setAttribute("subscription", "remove");
1482			account.getXmppConnection().sendIqPacket(iq, null);
1483		}
1484	}
1485
1486	public void updateConversation(Conversation conversation) {
1487		this.databaseBackend.updateConversation(conversation);
1488	}
1489
1490	public void reconnectAccount(final Account account, final boolean force) {
1491		new Thread(new Runnable() {
1492
1493			@Override
1494			public void run() {
1495				if (account.getXmppConnection() != null) {
1496					disconnect(account, force);
1497				}
1498				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1499					if (account.getXmppConnection() == null) {
1500						account.setXmppConnection(createConnection(account));
1501					}
1502					Thread thread = new Thread(account.getXmppConnection());
1503					thread.start();
1504					scheduleWakeupCall((int) (Config.CONNECT_TIMEOUT * 1.2),
1505							false);
1506				}
1507			}
1508		}).start();
1509	}
1510
1511	public void invite(Conversation conversation, String contact) {
1512		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
1513		sendMessagePacket(conversation.getAccount(), packet);
1514	}
1515
1516	public void resetSendingToWaiting(Account account) {
1517		for (Conversation conversation : getConversations()) {
1518			if (conversation.getAccount() == account) {
1519				for (Message message : conversation.getMessages()) {
1520					if (message.getType() != Message.TYPE_IMAGE
1521							&& message.getStatus() == Message.STATUS_UNSEND) {
1522						markMessage(message, Message.STATUS_WAITING);
1523					}
1524				}
1525			}
1526		}
1527	}
1528
1529	public boolean markMessage(Account account, String recipient, String uuid,
1530			int status) {
1531		for (Conversation conversation : getConversations()) {
1532			if (conversation.getContactJid().equals(recipient)
1533					&& conversation.getAccount().equals(account)) {
1534				return markMessage(conversation, uuid, status);
1535			}
1536		}
1537		return false;
1538	}
1539
1540	public boolean markMessage(Conversation conversation, String uuid,
1541			int status) {
1542		for (Message message : conversation.getMessages()) {
1543			if (message.getUuid().equals(uuid)) {
1544				markMessage(message, status);
1545				return true;
1546			}
1547		}
1548		return false;
1549	}
1550
1551	public void markMessage(Message message, int status) {
1552		if (status == Message.STATUS_SEND_FAILED
1553				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
1554						.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
1555			return;
1556		}
1557		message.setStatus(status);
1558		databaseBackend.updateMessage(message);
1559		updateConversationUi();
1560	}
1561
1562	public SharedPreferences getPreferences() {
1563		return PreferenceManager
1564				.getDefaultSharedPreferences(getApplicationContext());
1565	}
1566
1567	public boolean forceEncryption() {
1568		return getPreferences().getBoolean("force_encryption", false);
1569	}
1570
1571	public boolean confirmMessages() {
1572		return getPreferences().getBoolean("confirm_messages", true);
1573	}
1574
1575	public boolean saveEncryptedMessages() {
1576		return !getPreferences().getBoolean("dont_save_encrypted", false);
1577	}
1578
1579	public boolean indicateReceived() {
1580		return getPreferences().getBoolean("indicate_received", false);
1581	}
1582
1583	public void updateConversationUi() {
1584		if (mOnConversationUpdate != null) {
1585			mOnConversationUpdate.onConversationUpdate();
1586		}
1587	}
1588
1589	public void updateAccountUi() {
1590		if (mOnAccountUpdate != null) {
1591			mOnAccountUpdate.onAccountUpdate();
1592		}
1593	}
1594
1595	public void updateRosterUi() {
1596		if (mOnRosterUpdate != null) {
1597			mOnRosterUpdate.onRosterUpdate();
1598		}
1599	}
1600
1601	public Account findAccountByJid(String accountJid) {
1602		for (Account account : this.accounts) {
1603			if (account.getJid().equals(accountJid)) {
1604				return account;
1605			}
1606		}
1607		return null;
1608	}
1609
1610	public Conversation findConversationByUuid(String uuid) {
1611		for (Conversation conversation : getConversations()) {
1612			if (conversation.getUuid().equals(uuid)) {
1613				return conversation;
1614			}
1615		}
1616		return null;
1617	}
1618
1619	public void markRead(Conversation conversation) {
1620		conversation.markRead();
1621		mNotificationService.clear(conversation);
1622		String id = conversation.popLatestMarkableMessageId();
1623		if (confirmMessages() && id != null) {
1624			Account account = conversation.getAccount();
1625			String to = conversation.getContactJid();
1626			this.sendMessagePacket(conversation.getAccount(),
1627					mMessageGenerator.confirm(account, to, id));
1628		}
1629	}
1630
1631	public void failWaitingOtrMessages(Conversation conversation) {
1632		for (Message message : conversation.getMessages()) {
1633			if (message.getEncryption() == Message.ENCRYPTION_OTR
1634					&& message.getStatus() == Message.STATUS_WAITING) {
1635				markMessage(message, Message.STATUS_SEND_FAILED);
1636			}
1637		}
1638	}
1639
1640	public SecureRandom getRNG() {
1641		return this.mRandom;
1642	}
1643
1644	public MemorizingTrustManager getMemorizingTrustManager() {
1645		return this.mMemorizingTrustManager;
1646	}
1647
1648	public PowerManager getPowerManager() {
1649		return this.pm;
1650	}
1651
1652	public void replyWithNotAcceptable(Account account, MessagePacket packet) {
1653		if (account.getStatus() == Account.STATUS_ONLINE) {
1654			MessagePacket error = this.mMessageGenerator
1655					.generateNotAcceptable(packet);
1656			sendMessagePacket(account, error);
1657		}
1658	}
1659
1660	public void syncRosterToDisk(final Account account) {
1661		new Thread(new Runnable() {
1662
1663			@Override
1664			public void run() {
1665				databaseBackend.writeRoster(account.getRoster());
1666			}
1667		}).start();
1668
1669	}
1670
1671	public List<String> getKnownHosts() {
1672		List<String> hosts = new ArrayList<String>();
1673		for (Account account : getAccounts()) {
1674			if (!hosts.contains(account.getServer())) {
1675				hosts.add(account.getServer());
1676			}
1677			for (Contact contact : account.getRoster().getContacts()) {
1678				if (contact.showInRoster()) {
1679					String server = contact.getServer();
1680					if (server != null && !hosts.contains(server)) {
1681						hosts.add(server);
1682					}
1683				}
1684			}
1685		}
1686		return hosts;
1687	}
1688
1689	public List<String> getKnownConferenceHosts() {
1690		ArrayList<String> mucServers = new ArrayList<String>();
1691		for (Account account : accounts) {
1692			if (account.getXmppConnection() != null) {
1693				String server = account.getXmppConnection().getMucServer();
1694				if (server != null && !mucServers.contains(server)) {
1695					mucServers.add(server);
1696				}
1697			}
1698		}
1699		return mucServers;
1700	}
1701
1702	public void sendMessagePacket(Account account, MessagePacket packet) {
1703		account.getXmppConnection().sendMessagePacket(packet);
1704	}
1705
1706	public void sendPresencePacket(Account account, PresencePacket packet) {
1707		account.getXmppConnection().sendPresencePacket(packet);
1708	}
1709
1710	public void sendIqPacket(Account account, IqPacket packet,
1711			OnIqPacketReceived callback) {
1712		account.getXmppConnection().sendIqPacket(packet, callback);
1713	}
1714
1715	public MessageGenerator getMessageGenerator() {
1716		return this.mMessageGenerator;
1717	}
1718
1719	public PresenceGenerator getPresenceGenerator() {
1720		return this.mPresenceGenerator;
1721	}
1722
1723	public IqGenerator getIqGenerator() {
1724		return this.mIqGenerator;
1725	}
1726
1727	public JingleConnectionManager getJingleConnectionManager() {
1728		return this.mJingleConnectionManager;
1729	}
1730
1731	public interface OnConversationUpdate {
1732		public void onConversationUpdate();
1733	}
1734
1735	public interface OnAccountUpdate {
1736		public void onAccountUpdate();
1737	}
1738
1739	public interface OnRosterUpdate {
1740		public void onRosterUpdate();
1741	}
1742
1743	public List<Contact> findContacts(String jid) {
1744		ArrayList<Contact> contacts = new ArrayList<Contact>();
1745		for (Account account : getAccounts()) {
1746			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1747				Contact contact = account.getRoster()
1748						.getContactAsShownInRoster(jid);
1749				if (contact != null) {
1750					contacts.add(contact);
1751				}
1752			}
1753		}
1754		return contacts;
1755	}
1756
1757	public void pushNotification(Message message) {
1758		this.mNotificationService.push(message);
1759	}
1760}