XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import java.security.SecureRandom;
   4import java.util.Collections;
   5import java.util.Comparator;
   6import java.util.Hashtable;
   7import java.util.List;
   8import java.util.Locale;
   9
  10import org.openintents.openpgp.util.OpenPgpApi;
  11import org.openintents.openpgp.util.OpenPgpServiceConnection;
  12
  13import net.java.otr4j.OtrException;
  14import net.java.otr4j.session.Session;
  15import net.java.otr4j.session.SessionStatus;
  16import eu.siacs.conversations.crypto.PgpEngine;
  17import eu.siacs.conversations.entities.Account;
  18import eu.siacs.conversations.entities.Contact;
  19import eu.siacs.conversations.entities.Conversation;
  20import eu.siacs.conversations.entities.Message;
  21import eu.siacs.conversations.entities.MucOptions;
  22import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  23import eu.siacs.conversations.entities.Presences;
  24import eu.siacs.conversations.generator.MessageGenerator;
  25import eu.siacs.conversations.parser.MessageParser;
  26import eu.siacs.conversations.parser.PresenceParser;
  27import eu.siacs.conversations.persistance.DatabaseBackend;
  28import eu.siacs.conversations.persistance.FileBackend;
  29import eu.siacs.conversations.ui.OnAccountListChangedListener;
  30import eu.siacs.conversations.ui.OnConversationListChangedListener;
  31import eu.siacs.conversations.ui.UiCallback;
  32import eu.siacs.conversations.utils.CryptoHelper;
  33import eu.siacs.conversations.utils.ExceptionHelper;
  34import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  35import eu.siacs.conversations.utils.PRNGFixes;
  36import eu.siacs.conversations.utils.PhoneHelper;
  37import eu.siacs.conversations.utils.UIHelper;
  38import eu.siacs.conversations.xml.Element;
  39import eu.siacs.conversations.xmpp.OnBindListener;
  40import eu.siacs.conversations.xmpp.OnContactStatusChanged;
  41import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  42import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
  43import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
  44import eu.siacs.conversations.xmpp.OnStatusChanged;
  45import eu.siacs.conversations.xmpp.OnTLSExceptionReceived;
  46import eu.siacs.conversations.xmpp.XmppConnection;
  47import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  48import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
  49import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
  50import eu.siacs.conversations.xmpp.stanzas.IqPacket;
  51import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
  52import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
  53import android.annotation.SuppressLint;
  54import android.app.AlarmManager;
  55import android.app.PendingIntent;
  56import android.app.Service;
  57import android.content.Context;
  58import android.content.Intent;
  59import android.content.SharedPreferences;
  60import android.database.ContentObserver;
  61import android.net.ConnectivityManager;
  62import android.net.NetworkInfo;
  63import android.net.Uri;
  64import android.os.Binder;
  65import android.os.Bundle;
  66import android.os.IBinder;
  67import android.os.PowerManager;
  68import android.os.PowerManager.WakeLock;
  69import android.os.SystemClock;
  70import android.preference.PreferenceManager;
  71import android.provider.ContactsContract;
  72import android.util.Log;
  73
  74public class XmppConnectionService extends Service {
  75
  76	protected static final String LOGTAG = "xmppService";
  77	public DatabaseBackend databaseBackend;
  78	private FileBackend fileBackend;
  79
  80	public long startDate;
  81
  82	private static final int PING_MAX_INTERVAL = 300;
  83	private static final int PING_MIN_INTERVAL = 30;
  84	private static final int PING_TIMEOUT = 10;
  85	private static final int CONNECT_TIMEOUT = 90;
  86	private static final long CARBON_GRACE_PERIOD = 60000L;
  87
  88	private static String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
  89
  90	private MessageParser mMessageParser = new MessageParser(this);
  91	private PresenceParser mPresenceParser = new PresenceParser(this);
  92	private MessageGenerator mMessageGenerator = new MessageGenerator();
  93
  94	private List<Account> accounts;
  95	private List<Conversation> conversations = null;
  96	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
  97			this);
  98
  99	private OnConversationListChangedListener convChangedListener = null;
 100	private int convChangedListenerCount = 0;
 101	private OnAccountListChangedListener accountChangedListener = null;
 102	private OnTLSExceptionReceived tlsException = null;
 103	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 104
 105		@Override
 106		public void onContactStatusChanged(Contact contact, boolean online) {
 107			Conversation conversation = findActiveConversation(contact);
 108			if (conversation != null) {
 109				conversation.endOtrIfNeeded();
 110				if (online && (contact.getPresences().size() == 1)) {
 111					sendUnsendMessages(conversation);
 112				}
 113			}
 114		}
 115	};
 116
 117	public void setOnTLSExceptionReceivedListener(
 118			OnTLSExceptionReceived listener) {
 119		tlsException = listener;
 120	}
 121
 122	private SecureRandom mRandom;
 123
 124	private long lastCarbonMessageReceived = -CARBON_GRACE_PERIOD;
 125
 126	private ContentObserver contactObserver = new ContentObserver(null) {
 127		@Override
 128		public void onChange(boolean selfChange) {
 129			super.onChange(selfChange);
 130			Intent intent = new Intent(getApplicationContext(),
 131					XmppConnectionService.class);
 132			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 133			startService(intent);
 134		}
 135	};
 136
 137	private final IBinder mBinder = new XmppConnectionBinder();
 138	private OnMessagePacketReceived messageListener = new OnMessagePacketReceived() {
 139
 140		@Override
 141		public void onMessagePacketReceived(Account account,
 142				MessagePacket packet) {
 143			Message message = null;
 144			boolean notify = true;
 145			if (getPreferences().getBoolean(
 146					"notification_grace_period_after_carbon_received", true)) {
 147				notify = (SystemClock.elapsedRealtime() - lastCarbonMessageReceived) > CARBON_GRACE_PERIOD;
 148			}
 149
 150			if ((packet.getType() == MessagePacket.TYPE_CHAT)) {
 151				if ((packet.getBody() != null)
 152						&& (packet.getBody().startsWith("?OTR"))) {
 153					message = mMessageParser.parseOtrChat(packet, account);
 154					if (message != null) {
 155						message.markUnread();
 156					}
 157				} else if (packet.hasChild("body")) {
 158					message = mMessageParser.parseChat(packet, account);
 159					message.markUnread();
 160				} else if (packet.hasChild("received")
 161						|| (packet.hasChild("sent"))) {
 162					message = mMessageParser
 163							.parseCarbonMessage(packet, account);
 164					if (message != null) {
 165						if (message.getStatus() == Message.STATUS_SEND) {
 166							lastCarbonMessageReceived = SystemClock
 167									.elapsedRealtime();
 168							notify = false;
 169							message.getConversation().markRead();
 170						} else {
 171							message.markUnread();
 172						}
 173					}
 174				}
 175
 176			} else if (packet.getType() == MessagePacket.TYPE_GROUPCHAT) {
 177				message = mMessageParser.parseGroupchat(packet, account);
 178				if (message != null) {
 179					if (message.getStatus() == Message.STATUS_RECIEVED) {
 180						message.markUnread();
 181					} else {
 182						message.getConversation().markRead();
 183						notify = false;
 184					}
 185				}
 186			} else if (packet.getType() == MessagePacket.TYPE_ERROR) {
 187				mMessageParser.parseError(packet, account);
 188				return;
 189			} else if (packet.getType() == MessagePacket.TYPE_NORMAL) {
 190				mMessageParser.parseNormal(packet, account);
 191			}
 192			if ((message == null) || (message.getBody() == null)) {
 193				return;
 194			}
 195			if ((confirmMessages()) && ((packet.getId() != null))) {
 196				MessagePacket receivedPacket = new MessagePacket();
 197				receivedPacket.setType(MessagePacket.TYPE_NORMAL);
 198				receivedPacket.setTo(message.getCounterpart());
 199				receivedPacket.setFrom(account.getFullJid());
 200				if (packet.hasChild("markable", "urn:xmpp:chat-markers:0")) {
 201					Element received = receivedPacket.addChild("received",
 202							"urn:xmpp:chat-markers:0");
 203					received.setAttribute("id", packet.getId());
 204					account.getXmppConnection().sendMessagePacket(
 205							receivedPacket);
 206				} else if (packet.hasChild("request", "urn:xmpp:receipts")) {
 207					Element received = receivedPacket.addChild("received",
 208							"urn:xmpp:receipts");
 209					received.setAttribute("id", packet.getId());
 210					account.getXmppConnection().sendMessagePacket(
 211							receivedPacket);
 212				}
 213			}
 214			Conversation conversation = message.getConversation();
 215			conversation.getMessages().add(message);
 216			if (packet.getType() != MessagePacket.TYPE_ERROR) {
 217				databaseBackend.createMessage(message);
 218			}
 219			if (convChangedListener != null) {
 220				convChangedListener.onConversationListChanged();
 221			} else {
 222				UIHelper.updateNotification(getApplicationContext(),
 223						getConversations(), message.getConversation(), notify);
 224			}
 225		}
 226	};
 227	private OnStatusChanged statusListener = new OnStatusChanged() {
 228
 229		@Override
 230		public void onStatusChanged(Account account) {
 231			if (accountChangedListener != null) {
 232				accountChangedListener.onAccountListChangedListener();
 233			}
 234			if (account.getStatus() == Account.STATUS_ONLINE) {
 235				mJingleConnectionManager.cancelInTransmission();
 236				List<Conversation> conversations = getConversations();
 237				for (int i = 0; i < conversations.size(); ++i) {
 238					if (conversations.get(i).getAccount() == account) {
 239						conversations.get(i).startOtrIfNeeded();
 240						sendUnsendMessages(conversations.get(i));
 241					}
 242				}
 243				syncDirtyContacts(account);
 244				scheduleWakeupCall(PING_MAX_INTERVAL, true);
 245			} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 246				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 247					int timeToReconnect = mRandom.nextInt(50) + 10;
 248					scheduleWakeupCall(timeToReconnect, false);
 249				}
 250
 251			} else if (account.getStatus() == Account.STATUS_REGISTRATION_SUCCESSFULL) {
 252				databaseBackend.updateAccount(account);
 253				reconnectAccount(account, true);
 254			} else if ((account.getStatus() != Account.STATUS_CONNECTING)
 255					&& (account.getStatus() != Account.STATUS_NO_INTERNET)) {
 256				int next = account.getXmppConnection().getTimeToNextAttempt();
 257				Log.d(LOGTAG, account.getJid()
 258						+ ": error connecting account. try again in " + next
 259						+ "s for the "
 260						+ (account.getXmppConnection().getAttempt() + 1)
 261						+ " time");
 262				scheduleWakeupCall(next, false);
 263			}
 264			UIHelper.showErrorNotification(getApplicationContext(),
 265					getAccounts());
 266		}
 267	};
 268
 269	private OnPresencePacketReceived presenceListener = new OnPresencePacketReceived() {
 270
 271		@Override
 272		public void onPresencePacketReceived(final Account account,
 273				PresencePacket packet) {
 274			if (packet.hasChild("x", "http://jabber.org/protocol/muc#user")) {
 275				mPresenceParser.parseConferencePresence(packet, account);
 276			} else if (packet.hasChild("x", "http://jabber.org/protocol/muc")) {
 277				mPresenceParser.parseConferencePresence(packet, account);
 278			} else {
 279				mPresenceParser.parseContactPresence(packet, account);
 280			}
 281		}
 282	};
 283
 284	private OnIqPacketReceived unknownIqListener = new OnIqPacketReceived() {
 285
 286		@Override
 287		public void onIqPacketReceived(Account account, IqPacket packet) {
 288			if (packet.hasChild("query", "jabber:iq:roster")) {
 289				String from = packet.getFrom();
 290				if ((from == null) || (from.equals(account.getJid()))) {
 291					Element query = packet.findChild("query");
 292					processRosterItems(account, query);
 293				} else {
 294					Log.d(LOGTAG, "unauthorized roster push from: " + from);
 295				}
 296			} else if (packet
 297					.hasChild("open", "http://jabber.org/protocol/ibb")
 298					|| packet
 299							.hasChild("data", "http://jabber.org/protocol/ibb")) {
 300				XmppConnectionService.this.mJingleConnectionManager
 301						.deliverIbbPacket(account, packet);
 302			} else if (packet.hasChild("query",
 303					"http://jabber.org/protocol/disco#info")) {
 304				IqPacket iqResponse = packet
 305						.generateRespone(IqPacket.TYPE_RESULT);
 306				Element query = iqResponse.addChild("query",
 307						"http://jabber.org/protocol/disco#info");
 308				query.addChild("feature").setAttribute("var",
 309						"urn:xmpp:jingle:1");
 310				query.addChild("feature").setAttribute("var",
 311						"urn:xmpp:jingle:apps:file-transfer:3");
 312				query.addChild("feature").setAttribute("var",
 313						"urn:xmpp:jingle:transports:s5b:1");
 314				query.addChild("feature").setAttribute("var",
 315						"urn:xmpp:jingle:transports:ibb:1");
 316				if (confirmMessages()) {
 317					query.addChild("feature").setAttribute("var",
 318							"urn:xmpp:receipts");
 319				}
 320				account.getXmppConnection().sendIqPacket(iqResponse, null);
 321			} else {
 322				if ((packet.getType() == IqPacket.TYPE_GET)
 323						|| (packet.getType() == IqPacket.TYPE_SET)) {
 324					IqPacket response = packet
 325							.generateRespone(IqPacket.TYPE_ERROR);
 326					Element error = response.addChild("error");
 327					error.setAttribute("type", "cancel");
 328					error.addChild("feature-not-implemented",
 329							"urn:ietf:params:xml:ns:xmpp-stanzas");
 330					account.getXmppConnection().sendIqPacket(response, null);
 331				}
 332			}
 333		}
 334	};
 335
 336	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 337
 338		@Override
 339		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 340			mJingleConnectionManager.deliverPacket(account, packet);
 341		}
 342	};
 343
 344	private OpenPgpServiceConnection pgpServiceConnection;
 345	private PgpEngine mPgpEngine = null;
 346	private Intent pingIntent;
 347	private PendingIntent pendingPingIntent = null;
 348	private WakeLock wakeLock;
 349	private PowerManager pm;
 350
 351	public PgpEngine getPgpEngine() {
 352		if (pgpServiceConnection.isBound()) {
 353			if (this.mPgpEngine == null) {
 354				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 355						getApplicationContext(),
 356						pgpServiceConnection.getService()), this);
 357			}
 358			return mPgpEngine;
 359		} else {
 360			return null;
 361		}
 362
 363	}
 364
 365	public FileBackend getFileBackend() {
 366		return this.fileBackend;
 367	}
 368
 369	public Message attachImageToConversation(final Conversation conversation,
 370			final Uri uri, final UiCallback<Message> callback) {
 371		final Message message;
 372		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 373			message = new Message(conversation, "",
 374					Message.ENCRYPTION_DECRYPTED);
 375		} else {
 376			message = new Message(conversation, "",
 377					conversation.getNextEncryption());
 378		}
 379		message.setPresence(conversation.getNextPresence());
 380		message.setType(Message.TYPE_IMAGE);
 381		message.setStatus(Message.STATUS_OFFERED);
 382		new Thread(new Runnable() {
 383
 384			@Override
 385			public void run() {
 386				try {
 387					getFileBackend().copyImageToPrivateStorage(message, uri);
 388					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 389						getPgpEngine().encrypt(message, callback);
 390					} else {
 391						callback.success(message);
 392					}
 393				} catch (FileBackend.ImageCopyException e) {
 394					callback.error(e.getResId(), message);
 395				}
 396			}
 397		}).start();
 398		return message;
 399	}
 400
 401	public Conversation findMuc(String name, Account account) {
 402		for (Conversation conversation : this.conversations) {
 403			if (conversation.getContactJid().split("/")[0].equals(name)
 404					&& (conversation.getAccount() == account)) {
 405				return conversation;
 406			}
 407		}
 408		return null;
 409	}
 410
 411	private void processRosterItems(Account account, Element elements) {
 412		String version = elements.getAttribute("ver");
 413		if (version != null) {
 414			account.getRoster().setVersion(version);
 415		}
 416		for (Element item : elements.getChildren()) {
 417			if (item.getName().equals("item")) {
 418				String jid = item.getAttribute("jid");
 419				String name = item.getAttribute("name");
 420				String subscription = item.getAttribute("subscription");
 421				Contact contact = account.getRoster().getContact(jid);
 422				if (!contact.getOption(Contact.Options.DIRTY_PUSH)) {
 423					contact.setServerName(name);
 424				}
 425				if (subscription.equals("remove")) {
 426					contact.resetOption(Contact.Options.IN_ROSTER);
 427					contact.resetOption(Contact.Options.DIRTY_DELETE);
 428				} else {
 429					contact.setOption(Contact.Options.IN_ROSTER);
 430					contact.parseSubscriptionFromElement(item);
 431				}
 432			}
 433		}
 434	}
 435
 436	public class XmppConnectionBinder extends Binder {
 437		public XmppConnectionService getService() {
 438			return XmppConnectionService.this;
 439		}
 440	}
 441
 442	@Override
 443	public int onStartCommand(Intent intent, int flags, int startId) {
 444		if ((intent != null)
 445				&& (ACTION_MERGE_PHONE_CONTACTS.equals(intent.getAction()))) {
 446			mergePhoneContactsWithRoster();
 447			return START_STICKY;
 448		} else if ((intent != null)
 449				&& (Intent.ACTION_SHUTDOWN.equals(intent.getAction()))) {
 450			logoutAndSave();
 451			return START_NOT_STICKY;
 452		}
 453		this.wakeLock.acquire();
 454		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 455				.getSystemService(Context.CONNECTIVITY_SERVICE);
 456		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 457		boolean isConnected = activeNetwork != null
 458				&& activeNetwork.isConnected();
 459
 460		for (Account account : accounts) {
 461			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 462				if (!isConnected) {
 463					account.setStatus(Account.STATUS_NO_INTERNET);
 464					if (statusListener != null) {
 465						statusListener.onStatusChanged(account);
 466					}
 467				} else {
 468					if (account.getStatus() == Account.STATUS_NO_INTERNET) {
 469						account.setStatus(Account.STATUS_OFFLINE);
 470						if (statusListener != null) {
 471							statusListener.onStatusChanged(account);
 472						}
 473					}
 474					if (account.getStatus() == Account.STATUS_ONLINE) {
 475						long lastReceived = account.getXmppConnection().lastPaketReceived;
 476						long lastSent = account.getXmppConnection().lastPingSent;
 477						if (lastSent - lastReceived >= PING_TIMEOUT * 1000) {
 478							Log.d(LOGTAG, account.getJid() + ": ping timeout");
 479							this.reconnectAccount(account, true);
 480						} else if (SystemClock.elapsedRealtime() - lastReceived >= PING_MIN_INTERVAL * 1000) {
 481							account.getXmppConnection().sendPing();
 482							account.getXmppConnection().lastPingSent = SystemClock
 483									.elapsedRealtime();
 484							this.scheduleWakeupCall(2, false);
 485						}
 486					} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 487						if (account.getXmppConnection() == null) {
 488							account.setXmppConnection(this
 489									.createConnection(account));
 490						}
 491						account.getXmppConnection().lastPingSent = SystemClock
 492								.elapsedRealtime();
 493						new Thread(account.getXmppConnection()).start();
 494					} else if ((account.getStatus() == Account.STATUS_CONNECTING)
 495							&& ((SystemClock.elapsedRealtime() - account
 496									.getXmppConnection().lastConnect) / 1000 >= CONNECT_TIMEOUT)) {
 497						Log.d(LOGTAG, account.getJid()
 498								+ ": time out during connect reconnecting");
 499						reconnectAccount(account, true);
 500					} else {
 501						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 502							reconnectAccount(account, true);
 503						}
 504					}
 505					// in any case. reschedule wakup call
 506					this.scheduleWakeupCall(PING_MAX_INTERVAL, true);
 507				}
 508				if (accountChangedListener != null) {
 509					accountChangedListener.onAccountListChangedListener();
 510				}
 511			}
 512		}
 513		if (wakeLock.isHeld()) {
 514			try { wakeLock.release();} catch (RuntimeException re) {}
 515		}
 516		return START_STICKY;
 517	}
 518
 519	@SuppressLint("TrulyRandom")
 520	@Override
 521	public void onCreate() {
 522		ExceptionHelper.init(getApplicationContext());
 523		PRNGFixes.apply();
 524		this.mRandom = new SecureRandom();
 525		this.databaseBackend = DatabaseBackend
 526				.getInstance(getApplicationContext());
 527		this.fileBackend = new FileBackend(getApplicationContext());
 528		this.accounts = databaseBackend.getAccounts();
 529
 530		for (Account account : this.accounts) {
 531			this.databaseBackend.readRoster(account.getRoster());
 532		}
 533		this.mergePhoneContactsWithRoster();
 534		this.getConversations();
 535
 536		getContentResolver().registerContentObserver(
 537				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 538		this.pgpServiceConnection = new OpenPgpServiceConnection(
 539				getApplicationContext(), "org.sufficientlysecure.keychain");
 540		this.pgpServiceConnection.bindToService();
 541
 542		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 543		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
 544				"XmppConnectionService");
 545	}
 546
 547	@Override
 548	public void onDestroy() {
 549		super.onDestroy();
 550		this.logoutAndSave();
 551	}
 552
 553	@Override
 554	public void onTaskRemoved(Intent rootIntent) {
 555		super.onTaskRemoved(rootIntent);
 556		this.logoutAndSave();
 557	}
 558
 559	private void logoutAndSave() {
 560		for (Account account : accounts) {
 561			databaseBackend.writeRoster(account.getRoster());
 562			if (account.getXmppConnection() != null) {
 563				disconnect(account, false);
 564			}
 565		}
 566		Context context = getApplicationContext();
 567		AlarmManager alarmManager = (AlarmManager) context
 568				.getSystemService(Context.ALARM_SERVICE);
 569		Intent intent = new Intent(context, EventReceiver.class);
 570		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 571		Log.d(LOGTAG, "good bye");
 572		stopSelf();
 573	}
 574
 575	protected void scheduleWakeupCall(int seconds, boolean ping) {
 576		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 577		Context context = getApplicationContext();
 578		AlarmManager alarmManager = (AlarmManager) context
 579				.getSystemService(Context.ALARM_SERVICE);
 580
 581		if (ping) {
 582			if (this.pingIntent == null) {
 583				this.pingIntent = new Intent(context, EventReceiver.class);
 584				this.pingIntent.setAction("ping");
 585				this.pingIntent.putExtra("time", timeToWake);
 586				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 587						this.pingIntent, 0);
 588				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 589						timeToWake, pendingPingIntent);
 590			} else {
 591				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
 592				if (scheduledTime < SystemClock.elapsedRealtime()
 593						|| (scheduledTime > timeToWake)) {
 594					this.pingIntent.putExtra("time", timeToWake);
 595					alarmManager.cancel(this.pendingPingIntent);
 596					this.pendingPingIntent = PendingIntent.getBroadcast(
 597							context, 0, this.pingIntent, 0);
 598					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 599							timeToWake, pendingPingIntent);
 600				}
 601			}
 602		} else {
 603			Intent intent = new Intent(context, EventReceiver.class);
 604			intent.setAction("ping_check");
 605			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 606					intent, 0);
 607			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 608					alarmIntent);
 609		}
 610
 611	}
 612
 613	public XmppConnection createConnection(Account account) {
 614		SharedPreferences sharedPref = getPreferences();
 615		account.setResource(sharedPref.getString("resource", "mobile")
 616				.toLowerCase(Locale.getDefault()));
 617		XmppConnection connection = new XmppConnection(account, this);
 618		connection.setOnMessagePacketReceivedListener(this.messageListener);
 619		connection.setOnStatusChangedListener(this.statusListener);
 620		connection.setOnPresencePacketReceivedListener(this.presenceListener);
 621		connection
 622				.setOnUnregisteredIqPacketReceivedListener(this.unknownIqListener);
 623		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 624		connection
 625				.setOnTLSExceptionReceivedListener(new OnTLSExceptionReceived() {
 626
 627					@Override
 628					public void onTLSExceptionReceived(String fingerprint,
 629							Account account) {
 630						Log.d(LOGTAG, "tls exception arrived in service");
 631						if (tlsException != null) {
 632							tlsException.onTLSExceptionReceived(fingerprint,
 633									account);
 634						}
 635					}
 636				});
 637		connection.setOnBindListener(new OnBindListener() {
 638
 639			@Override
 640			public void onBind(final Account account) {
 641				account.getRoster().clearPresences();
 642				account.clearPresences(); // self presences
 643				fetchRosterFromServer(account);
 644				sendPresence(account);
 645				connectMultiModeConversations(account);
 646				if (convChangedListener != null) {
 647					convChangedListener.onConversationListChanged();
 648				}
 649			}
 650		});
 651		return connection;
 652	}
 653
 654	synchronized public void sendMessage(Message message) {
 655		Account account = message.getConversation().getAccount();
 656		Conversation conv = message.getConversation();
 657		MessagePacket packet = null;
 658		boolean saveInDb = true;
 659		boolean send = false;
 660		if (account.getStatus() == Account.STATUS_ONLINE) {
 661			if (message.getType() == Message.TYPE_IMAGE) {
 662				if (message.getPresence() != null) {
 663					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 664						if (!conv.hasValidOtrSession()
 665								&& (message.getPresence() != null)) {
 666							conv.startOtrSession(getApplicationContext(),
 667									message.getPresence(), true);
 668							message.setStatus(Message.STATUS_WAITING);
 669						} else if (conv.hasValidOtrSession()
 670								&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 671							mJingleConnectionManager
 672									.createNewConnection(message);
 673						} else if (message.getPresence() == null) {
 674							message.setStatus(Message.STATUS_WAITING);
 675						}
 676					} else {
 677						mJingleConnectionManager.createNewConnection(message);
 678					}
 679				} else {
 680					message.setStatus(Message.STATUS_WAITING);
 681				}
 682			} else {
 683				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 684					if (!conv.hasValidOtrSession()
 685							&& (message.getPresence() != null)) {
 686						conv.startOtrSession(getApplicationContext(),
 687								message.getPresence(), true);
 688						message.setStatus(Message.STATUS_WAITING);
 689					} else if (conv.hasValidOtrSession()
 690							&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 691						message.setPresence(conv.getOtrSession().getSessionID().getUserID());
 692						try {
 693							packet = mMessageGenerator.generateOtrChat(message);
 694							send = true;
 695							message.setStatus(Message.STATUS_SEND);
 696						} catch (OtrException e) {
 697							Log.e(LOGTAG,"error generating otr packet");
 698							packet = null;
 699						}
 700					} else if (message.getPresence() == null) {
 701						message.setStatus(Message.STATUS_WAITING);
 702					}
 703				} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 704					message.getConversation().endOtrIfNeeded();
 705					packet = mMessageGenerator.generatePgpChat(message);
 706					message.setStatus(Message.STATUS_SEND);
 707					send = true;
 708				} else {
 709					message.getConversation().endOtrIfNeeded();
 710					if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 711						message.setStatus(Message.STATUS_SEND);
 712					}
 713					packet = mMessageGenerator.generateChat(message);
 714					send = true;
 715				}
 716			}
 717		} else {
 718			message.setStatus(Message.STATUS_WAITING);
 719			if (message.getType() == Message.TYPE_TEXT) {
 720				if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 721					String pgpBody = message.getEncryptedBody();
 722					String decryptedBody = message.getBody();
 723					message.setBody(pgpBody);
 724					databaseBackend.createMessage(message);
 725					saveInDb = false;
 726					message.setBody(decryptedBody);
 727				} else if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 728					if (conv.hasValidOtrSession()) {
 729						message.setPresence(conv.getOtrSession().getSessionID()
 730								.getUserID());
 731					} else if (!conv.hasValidOtrSession()
 732							&& message.getPresence() != null) {
 733						conv.startOtrSession(getApplicationContext(),
 734								message.getPresence(), false);
 735					}
 736				}
 737			}
 738
 739		}
 740		if (saveInDb) {
 741			databaseBackend.createMessage(message);
 742		}
 743		conv.getMessages().add(message);
 744		if (convChangedListener != null) {
 745			convChangedListener.onConversationListChanged();
 746		}
 747		if ((send) && (packet != null)) {
 748			account.getXmppConnection().sendMessagePacket(packet);
 749		}
 750
 751	}
 752
 753	private void sendUnsendMessages(Conversation conversation) {
 754		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 755			int status = conversation.getMessages().get(i).getStatus();
 756			if (status == Message.STATUS_WAITING) {
 757				resendMessage(conversation.getMessages().get(i));
 758			}
 759		}
 760	}
 761
 762	private void resendMessage(Message message) {
 763		Account account = message.getConversation().getAccount();
 764		MessagePacket packet = null;
 765		if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 766			Presences presences = message.getConversation().getContact()
 767					.getPresences();
 768			if (!message.getConversation().hasValidOtrSession()) {
 769				if ((message.getPresence() != null)
 770						&& (presences.has(message.getPresence()))) {
 771					message.getConversation().startOtrSession(
 772							getApplicationContext(), message.getPresence(),
 773							true);
 774				} else {
 775					if (presences.size() == 1) {
 776						String presence = presences.asStringArray()[0];
 777						message.getConversation().startOtrSession(
 778								getApplicationContext(), presence, true);
 779					}
 780				}
 781			} else {
 782				if (message.getConversation().getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 783					if (message.getType() == Message.TYPE_TEXT) {
 784						packet = mMessageGenerator.generateOtrChat(message,true);
 785					} else if (message.getType() == Message.TYPE_IMAGE) {
 786						mJingleConnectionManager.createNewConnection(message);
 787					}
 788				}
 789			}
 790		} else if (message.getType() == Message.TYPE_TEXT) {
 791			if (message.getEncryption() == Message.ENCRYPTION_NONE) {
 792				packet = mMessageGenerator.generateChat(message,true);
 793			} else if ((message.getEncryption() == Message.ENCRYPTION_DECRYPTED)||(message.getEncryption() == Message.ENCRYPTION_PGP)) {
 794				packet = mMessageGenerator.generatePgpChat(message,true);
 795			}
 796		} else if (message.getType() == Message.TYPE_IMAGE) {
 797			Presences presences = message.getConversation().getContact()
 798					.getPresences();
 799			if ((message.getPresence() != null)
 800					&& (presences.has(message.getPresence()))) {
 801				markMessage(message, Message.STATUS_OFFERED);
 802				mJingleConnectionManager.createNewConnection(message);
 803			} else {
 804				if (presences.size() == 1) {
 805					String presence = presences.asStringArray()[0];
 806					message.setPresence(presence);
 807					markMessage(message, Message.STATUS_OFFERED);
 808					mJingleConnectionManager.createNewConnection(message);
 809				}
 810			}
 811		}
 812		if (packet != null) {
 813			account.getXmppConnection().sendMessagePacket(packet);
 814			markMessage(message, Message.STATUS_SEND);
 815		}
 816	}
 817
 818	public void fetchRosterFromServer(Account account) {
 819		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 820		if (!"".equals(account.getRosterVersion())) {
 821			Log.d(LOGTAG, account.getJid() + ": fetching roster version "
 822					+ account.getRosterVersion());
 823		} else {
 824			Log.d(LOGTAG, account.getJid() + ": fetching roster");
 825		}
 826		iqPacket.query("jabber:iq:roster").setAttribute("ver",
 827				account.getRosterVersion());
 828		account.getXmppConnection().sendIqPacket(iqPacket,
 829				new OnIqPacketReceived() {
 830
 831					@Override
 832					public void onIqPacketReceived(final Account account,
 833							IqPacket packet) {
 834						Element roster = packet.findChild("query");
 835						if (roster != null) {
 836							account.getRoster().markAllAsNotInRoster();
 837							processRosterItems(account, roster);
 838						}
 839					}
 840				});
 841	}
 842
 843	private void mergePhoneContactsWithRoster() {
 844		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 845				new OnPhoneContactsLoadedListener() {
 846					@Override
 847					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
 848						for (Account account : accounts) {
 849							account.getRoster().clearSystemAccounts();
 850						}
 851						for (Bundle phoneContact : phoneContacts) {
 852							for (Account account : accounts) {
 853								String jid = phoneContact.getString("jid");
 854								Contact contact = account.getRoster()
 855										.getContact(jid);
 856								String systemAccount = phoneContact
 857										.getInt("phoneid")
 858										+ "#"
 859										+ phoneContact.getString("lookup");
 860								contact.setSystemAccount(systemAccount);
 861								contact.setPhotoUri(phoneContact
 862										.getString("photouri"));
 863								contact.setSystemName(phoneContact
 864										.getString("displayname"));
 865							}
 866						}
 867					}
 868				});
 869	}
 870
 871	public List<Conversation> getConversations() {
 872		if (this.conversations == null) {
 873			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
 874			for (Account account : this.accounts) {
 875				accountLookupTable.put(account.getUuid(), account);
 876			}
 877			this.conversations = databaseBackend
 878					.getConversations(Conversation.STATUS_AVAILABLE);
 879			for (Conversation conv : this.conversations) {
 880				Account account = accountLookupTable.get(conv.getAccountUuid());
 881				conv.setAccount(account);
 882				conv.setMessages(databaseBackend.getMessages(conv, 50));
 883			}
 884		}
 885		Collections.sort(this.conversations, new Comparator<Conversation>() {
 886			@Override
 887			public int compare(Conversation lhs, Conversation rhs) {
 888				Message left = lhs.getLatestMessage();
 889				Message right = rhs.getLatestMessage();
 890				if (left.getTimeSent() > right.getTimeSent()) {
 891					return -1;
 892				} else if (left.getTimeSent() < right.getTimeSent()) {
 893					return 1;
 894				} else {
 895					return 0;
 896				}
 897			}
 898		});
 899		return this.conversations;
 900	}
 901
 902	public List<Message> getMoreMessages(Conversation conversation,
 903			long timestamp) {
 904		List<Message> messages = databaseBackend.getMessages(conversation, 50,
 905				timestamp);
 906		for (Message message : messages) {
 907			message.setConversation(conversation);
 908		}
 909		return messages;
 910	}
 911
 912	public List<Account> getAccounts() {
 913		return this.accounts;
 914	}
 915
 916	public Conversation findActiveConversation(Contact contact) {
 917		for (Conversation conversation : this.getConversations()) {
 918			if (conversation.getContact() == contact) {
 919				return conversation;
 920			}
 921		}
 922		return null;
 923	}
 924
 925	public Conversation findOrCreateConversation(Account account, String jid,
 926			boolean muc) {
 927		for (Conversation conv : this.getConversations()) {
 928			if ((conv.getAccount().equals(account))
 929					&& (conv.getContactJid().split("/")[0].equals(jid))) {
 930				return conv;
 931			}
 932		}
 933		Conversation conversation = databaseBackend.findConversation(account,
 934				jid);
 935		if (conversation != null) {
 936			conversation.setStatus(Conversation.STATUS_AVAILABLE);
 937			conversation.setAccount(account);
 938			if (muc) {
 939				conversation.setMode(Conversation.MODE_MULTI);
 940			} else {
 941				conversation.setMode(Conversation.MODE_SINGLE);
 942			}
 943			conversation.setMessages(databaseBackend.getMessages(conversation,
 944					50));
 945			this.databaseBackend.updateConversation(conversation);
 946		} else {
 947			String conversationName;
 948			Contact contact = account.getRoster().getContact(jid);
 949			if (contact != null) {
 950				conversationName = contact.getDisplayName();
 951			} else {
 952				conversationName = jid.split("@")[0];
 953			}
 954			if (muc) {
 955				conversation = new Conversation(conversationName, account, jid,
 956						Conversation.MODE_MULTI);
 957			} else {
 958				conversation = new Conversation(conversationName, account, jid,
 959						Conversation.MODE_SINGLE);
 960			}
 961			this.databaseBackend.createConversation(conversation);
 962		}
 963		this.conversations.add(conversation);
 964		if ((account.getStatus() == Account.STATUS_ONLINE)
 965				&& (conversation.getMode() == Conversation.MODE_MULTI)) {
 966			joinMuc(conversation);
 967		}
 968		if (this.convChangedListener != null) {
 969			this.convChangedListener.onConversationListChanged();
 970		}
 971		return conversation;
 972	}
 973
 974	public void archiveConversation(Conversation conversation) {
 975		if (conversation.getMode() == Conversation.MODE_MULTI) {
 976			leaveMuc(conversation);
 977		} else {
 978			conversation.endOtrIfNeeded();
 979		}
 980		this.databaseBackend.updateConversation(conversation);
 981		this.conversations.remove(conversation);
 982		if (this.convChangedListener != null) {
 983			this.convChangedListener.onConversationListChanged();
 984		}
 985	}
 986
 987	public void clearConversationHistory(Conversation conversation) {
 988		this.databaseBackend.deleteMessagesInConversation(conversation);
 989		this.fileBackend.removeFiles(conversation);
 990		conversation.getMessages().clear();
 991		if (this.convChangedListener != null) {
 992			this.convChangedListener.onConversationListChanged();
 993		}
 994	}
 995
 996	public int getConversationCount() {
 997		return this.databaseBackend.getConversationCount();
 998	}
 999
1000	public void createAccount(Account account) {
1001		databaseBackend.createAccount(account);
1002		this.accounts.add(account);
1003		this.reconnectAccount(account, false);
1004		if (accountChangedListener != null)
1005			accountChangedListener.onAccountListChangedListener();
1006	}
1007
1008	public void updateAccount(Account account) {
1009		this.statusListener.onStatusChanged(account);
1010		databaseBackend.updateAccount(account);
1011		reconnectAccount(account, false);
1012		if (accountChangedListener != null) {
1013			accountChangedListener.onAccountListChangedListener();
1014		}
1015		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
1016	}
1017
1018	public void deleteAccount(Account account) {
1019		if (account.getXmppConnection() != null) {
1020			this.disconnect(account, true);
1021		}
1022		databaseBackend.deleteAccount(account);
1023		this.accounts.remove(account);
1024		if (accountChangedListener != null) {
1025			accountChangedListener.onAccountListChangedListener();
1026		}
1027		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
1028	}
1029
1030	public void setOnConversationListChangedListener(
1031			OnConversationListChangedListener listener) {
1032		this.convChangedListener = listener;
1033		this.convChangedListenerCount++;
1034	}
1035
1036	public void removeOnConversationListChangedListener() {
1037		this.convChangedListenerCount--;
1038		if (this.convChangedListenerCount == 0) {
1039			this.convChangedListener = null;
1040		}
1041	}
1042
1043	public void setOnAccountListChangedListener(
1044			OnAccountListChangedListener listener) {
1045		this.accountChangedListener = listener;
1046	}
1047
1048	public void removeOnAccountListChangedListener() {
1049		this.accountChangedListener = null;
1050	}
1051
1052	public void connectMultiModeConversations(Account account) {
1053		List<Conversation> conversations = getConversations();
1054		for (int i = 0; i < conversations.size(); i++) {
1055			Conversation conversation = conversations.get(i);
1056			if ((conversation.getMode() == Conversation.MODE_MULTI)
1057					&& (conversation.getAccount() == account)) {
1058				joinMuc(conversation);
1059			}
1060		}
1061	}
1062
1063	public void joinMuc(Conversation conversation) {
1064		Account account = conversation.getAccount();
1065		String[] mucParts = conversation.getContactJid().split("/");
1066		String muc;
1067		String nick;
1068		if (mucParts.length == 2) {
1069			muc = mucParts[0];
1070			nick = mucParts[1];
1071		} else {
1072			muc = mucParts[0];
1073			nick = account.getUsername();
1074		}
1075		PresencePacket packet = new PresencePacket();
1076		packet.setAttribute("to", muc + "/" + nick);
1077		Element x = new Element("x");
1078		x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1079		String sig = account.getPgpSignature();
1080		if (sig != null) {
1081			packet.addChild("status").setContent("online");
1082			packet.addChild("x", "jabber:x:signed").setContent(sig);
1083		}
1084		if (conversation.getMessages().size() != 0) {
1085			long lastMsgTime = conversation.getLatestMessage().getTimeSent();
1086			long diff = (System.currentTimeMillis() - lastMsgTime) / 1000 - 1;
1087			x.addChild("history").setAttribute("seconds", diff + "");
1088		}
1089		packet.addChild(x);
1090		account.getXmppConnection().sendPresencePacket(packet);
1091	}
1092
1093	private OnRenameListener renameListener = null;
1094
1095	public void setOnRenameListener(OnRenameListener listener) {
1096		this.renameListener = listener;
1097	}
1098
1099	public void renameInMuc(final Conversation conversation, final String nick) {
1100		final MucOptions options = conversation.getMucOptions();
1101		if (options.online()) {
1102			Account account = conversation.getAccount();
1103			options.setOnRenameListener(new OnRenameListener() {
1104
1105				@Override
1106				public void onRename(boolean success) {
1107					if (renameListener != null) {
1108						renameListener.onRename(success);
1109					}
1110					if (success) {
1111						String jid = conversation.getContactJid().split("/")[0]
1112								+ "/" + nick;
1113						conversation.setContactJid(jid);
1114						databaseBackend.updateConversation(conversation);
1115					}
1116				}
1117			});
1118			options.flagAboutToRename();
1119			PresencePacket packet = new PresencePacket();
1120			packet.setAttribute("to",
1121					conversation.getContactJid().split("/")[0] + "/" + nick);
1122			packet.setAttribute("from", conversation.getAccount().getFullJid());
1123
1124			String sig = account.getPgpSignature();
1125			if (sig != null) {
1126				packet.addChild("status").setContent("online");
1127				packet.addChild("x", "jabber:x:signed").setContent(sig);
1128			}
1129
1130			account.getXmppConnection().sendPresencePacket(packet, null);
1131		} else {
1132			String jid = conversation.getContactJid().split("/")[0] + "/"
1133					+ nick;
1134			conversation.setContactJid(jid);
1135			databaseBackend.updateConversation(conversation);
1136			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
1137				joinMuc(conversation);
1138			}
1139		}
1140	}
1141
1142	public void leaveMuc(Conversation conversation) {
1143		PresencePacket packet = new PresencePacket();
1144		packet.setAttribute("to", conversation.getContactJid().split("/")[0]
1145				+ "/" + conversation.getMucOptions().getNick());
1146		packet.setAttribute("from", conversation.getAccount().getFullJid());
1147		packet.setAttribute("type", "unavailable");
1148		Log.d(LOGTAG, "send leaving muc " + packet);
1149		conversation.getAccount().getXmppConnection()
1150				.sendPresencePacket(packet);
1151		conversation.getMucOptions().setOffline();
1152	}
1153
1154	public void disconnect(Account account, boolean force) {
1155		if ((account.getStatus() == Account.STATUS_ONLINE)
1156				|| (account.getStatus() == Account.STATUS_DISABLED)) {
1157			if (!force) {
1158				List<Conversation> conversations = getConversations();
1159				for (int i = 0; i < conversations.size(); i++) {
1160					Conversation conversation = conversations.get(i);
1161					if (conversation.getAccount() == account) {
1162						if (conversation.getMode() == Conversation.MODE_MULTI) {
1163							leaveMuc(conversation);
1164						} else {
1165							conversation.endOtrIfNeeded();
1166						}
1167					}
1168				}
1169			}
1170			account.getXmppConnection().disconnect(force);
1171		}
1172	}
1173
1174	@Override
1175	public IBinder onBind(Intent intent) {
1176		return mBinder;
1177	}
1178
1179	public void updateMessage(Message message) {
1180		databaseBackend.updateMessage(message);
1181	}
1182
1183	protected void syncDirtyContacts(Account account) {
1184		for (Contact contact : account.getRoster().getContacts()) {
1185			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1186				pushContactToServer(contact);
1187			}
1188			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1189				Log.d(LOGTAG, "dirty delete");
1190				deleteContactOnServer(contact);
1191			}
1192		}
1193	}
1194
1195	public void createContact(Contact contact) {
1196		SharedPreferences sharedPref = getPreferences();
1197		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1198		if (autoGrant) {
1199			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1200			contact.setOption(Contact.Options.ASKING);
1201		}
1202		pushContactToServer(contact);
1203	}
1204
1205	public void onOtrSessionEstablished(Conversation conversation) {
1206		Account account = conversation.getAccount();
1207		List<Message> messages = conversation.getMessages();
1208		Session otrSession = conversation.getOtrSession();
1209		Log.d(LOGTAG, account.getJid() + " otr session established with "
1210				+ conversation.getContactJid() + "/"
1211				+ otrSession.getSessionID().getUserID());
1212		for (int i = 0; i < messages.size(); ++i) {
1213			Message msg = messages.get(i);
1214			if ((msg.getStatus() == Message.STATUS_UNSEND || msg.getStatus() == Message.STATUS_WAITING)
1215					&& (msg.getEncryption() == Message.ENCRYPTION_OTR)) {
1216				msg.setPresence(otrSession.getSessionID().getUserID());
1217				if (msg.getType() == Message.TYPE_TEXT) {
1218					MessagePacket outPacket = mMessageGenerator.generateOtrChat(msg,true);
1219					if (outPacket!=null) {
1220						msg.setStatus(Message.STATUS_SEND);
1221						databaseBackend.updateMessage(msg);
1222						account.getXmppConnection().sendMessagePacket(outPacket);
1223					}
1224				} else if (msg.getType() == Message.TYPE_IMAGE) {
1225					mJingleConnectionManager.createNewConnection(msg);
1226				}
1227			}
1228		}
1229		updateUi(conversation, false);
1230	}
1231
1232	public boolean renewSymmetricKey(Conversation conversation) {
1233		Account account = conversation.getAccount();
1234		byte[] symmetricKey = new byte[32];
1235		this.mRandom.nextBytes(symmetricKey);
1236		Session otrSession = conversation.getOtrSession();
1237		if (otrSession != null) {
1238			MessagePacket packet = new MessagePacket();
1239			packet.setType(MessagePacket.TYPE_CHAT);
1240			packet.setFrom(account.getFullJid());
1241			packet.addChild("private", "urn:xmpp:carbons:2");
1242			packet.addChild("no-copy", "urn:xmpp:hints");
1243			packet.setTo(otrSession.getSessionID().getAccountID() + "/"
1244					+ otrSession.getSessionID().getUserID());
1245			try {
1246				packet.setBody(otrSession
1247						.transformSending(CryptoHelper.FILETRANSFER
1248								+ CryptoHelper.bytesToHex(symmetricKey)));
1249				account.getXmppConnection().sendMessagePacket(packet);
1250				conversation.setSymmetricKey(symmetricKey);
1251				return true;
1252			} catch (OtrException e) {
1253				return false;
1254			}
1255		}
1256		return false;
1257	}
1258
1259	public void pushContactToServer(Contact contact) {
1260		contact.resetOption(Contact.Options.DIRTY_DELETE);
1261		Account account = contact.getAccount();
1262		if (account.getStatus() == Account.STATUS_ONLINE) {
1263			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1264			iq.query("jabber:iq:roster").addChild(contact.asElement());
1265			account.getXmppConnection().sendIqPacket(iq, null);
1266			if (contact.getOption(Contact.Options.ASKING)) {
1267				requestPresenceUpdatesFrom(contact);
1268			}
1269			if (contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1270				Log.d("xmppService", "contact had pending subscription");
1271				sendPresenceUpdatesTo(contact);
1272			}
1273			contact.resetOption(Contact.Options.DIRTY_PUSH);
1274		} else {
1275			contact.setOption(Contact.Options.DIRTY_PUSH);
1276		}
1277	}
1278
1279	public void deleteContactOnServer(Contact contact) {
1280		contact.resetOption(Contact.Options.DIRTY_PUSH);
1281		Account account = contact.getAccount();
1282		if (account.getStatus() == Account.STATUS_ONLINE) {
1283			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1284			Element item = iq.query("jabber:iq:roster").addChild("item");
1285			item.setAttribute("jid", contact.getJid());
1286			item.setAttribute("subscription", "remove");
1287			account.getXmppConnection().sendIqPacket(iq, null);
1288			contact.resetOption(Contact.Options.DIRTY_DELETE);
1289		} else {
1290			contact.setOption(Contact.Options.DIRTY_DELETE);
1291		}
1292	}
1293
1294	public void requestPresenceUpdatesFrom(Contact contact) {
1295		PresencePacket packet = new PresencePacket();
1296		packet.setAttribute("type", "subscribe");
1297		packet.setAttribute("to", contact.getJid());
1298		packet.setAttribute("from", contact.getAccount().getJid());
1299		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1300	}
1301
1302	public void stopPresenceUpdatesFrom(Contact contact) {
1303		PresencePacket packet = new PresencePacket();
1304		packet.setAttribute("type", "unsubscribe");
1305		packet.setAttribute("to", contact.getJid());
1306		packet.setAttribute("from", contact.getAccount().getJid());
1307		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1308	}
1309
1310	public void stopPresenceUpdatesTo(Contact contact) {
1311		PresencePacket packet = new PresencePacket();
1312		packet.setAttribute("type", "unsubscribed");
1313		packet.setAttribute("to", contact.getJid());
1314		packet.setAttribute("from", contact.getAccount().getJid());
1315		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1316	}
1317
1318	public void sendPresenceUpdatesTo(Contact contact) {
1319		PresencePacket packet = new PresencePacket();
1320		packet.setAttribute("type", "subscribed");
1321		packet.setAttribute("to", contact.getJid());
1322		packet.setAttribute("from", contact.getAccount().getJid());
1323		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1324	}
1325
1326	public void sendPresence(Account account) {
1327		PresencePacket packet = new PresencePacket();
1328		packet.setAttribute("from", account.getFullJid());
1329		String sig = account.getPgpSignature();
1330		if (sig != null) {
1331			packet.addChild("status").setContent("online");
1332			packet.addChild("x", "jabber:x:signed").setContent(sig);
1333		}
1334		account.getXmppConnection().sendPresencePacket(packet);
1335	}
1336
1337	public void updateConversation(Conversation conversation) {
1338		this.databaseBackend.updateConversation(conversation);
1339	}
1340
1341	public void removeOnTLSExceptionReceivedListener() {
1342		this.tlsException = null;
1343	}
1344
1345	public void reconnectAccount(final Account account, final boolean force) {
1346		new Thread(new Runnable() {
1347
1348			@Override
1349			public void run() {
1350				if (account.getXmppConnection() != null) {
1351					disconnect(account, force);
1352				}
1353				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1354					if (account.getXmppConnection() == null) {
1355						account.setXmppConnection(createConnection(account));
1356					}
1357					Thread thread = new Thread(account.getXmppConnection());
1358					thread.start();
1359					scheduleWakeupCall((int) (CONNECT_TIMEOUT * 1.2), false);
1360				}
1361			}
1362		}).start();
1363	}
1364
1365	public void sendConversationSubject(Conversation conversation,
1366			String subject) {
1367		MessagePacket packet = new MessagePacket();
1368		packet.setType(MessagePacket.TYPE_GROUPCHAT);
1369		packet.setTo(conversation.getContactJid().split("/")[0]);
1370		Element subjectChild = new Element("subject");
1371		subjectChild.setContent(subject);
1372		packet.addChild(subjectChild);
1373		packet.setFrom(conversation.getAccount().getJid());
1374		Account account = conversation.getAccount();
1375		if (account.getStatus() == Account.STATUS_ONLINE) {
1376			account.getXmppConnection().sendMessagePacket(packet);
1377		}
1378	}
1379
1380	public void inviteToConference(Conversation conversation,
1381			List<Contact> contacts) {
1382		for (Contact contact : contacts) {
1383			MessagePacket packet = new MessagePacket();
1384			packet.setTo(conversation.getContactJid().split("/")[0]);
1385			packet.setFrom(conversation.getAccount().getFullJid());
1386			Element x = new Element("x");
1387			x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
1388			Element invite = new Element("invite");
1389			invite.setAttribute("to", contact.getJid());
1390			x.addChild(invite);
1391			packet.addChild(x);
1392			Log.d(LOGTAG, packet.toString());
1393			conversation.getAccount().getXmppConnection()
1394					.sendMessagePacket(packet);
1395		}
1396
1397	}
1398
1399	public boolean markMessage(Account account, String recipient, String uuid,
1400			int status) {
1401		for (Conversation conversation : getConversations()) {
1402			if (conversation.getContactJid().equals(recipient)
1403					&& conversation.getAccount().equals(account)) {
1404				return markMessage(conversation, uuid, status);
1405			}
1406		}
1407		return false;
1408	}
1409
1410	public boolean markMessage(Conversation conversation, String uuid,
1411			int status) {
1412		for (Message message : conversation.getMessages()) {
1413			if (message.getUuid().equals(uuid)) {
1414				markMessage(message, status);
1415				return true;
1416			}
1417		}
1418		return false;
1419	}
1420
1421	public void markMessage(Message message, int status) {
1422		message.setStatus(status);
1423		databaseBackend.updateMessage(message);
1424		if (convChangedListener != null) {
1425			convChangedListener.onConversationListChanged();
1426		}
1427	}
1428
1429	public SharedPreferences getPreferences() {
1430		return PreferenceManager
1431				.getDefaultSharedPreferences(getApplicationContext());
1432	}
1433
1434	public boolean confirmMessages() {
1435		return getPreferences().getBoolean("confirm_messages", true);
1436	}
1437
1438	public void updateUi(Conversation conversation, boolean notify) {
1439		if (convChangedListener != null) {
1440			convChangedListener.onConversationListChanged();
1441		} else {
1442			UIHelper.updateNotification(getApplicationContext(),
1443					getConversations(), conversation, notify);
1444		}
1445	}
1446
1447	public Account findAccountByJid(String accountJid) {
1448		for (Account account : this.accounts) {
1449			if (account.getJid().equals(accountJid)) {
1450				return account;
1451			}
1452		}
1453		return null;
1454	}
1455
1456	public void markRead(Conversation conversation) {
1457		conversation.markRead(this);
1458	}
1459
1460	public void sendConfirmMessage(Account account, String to, String id) {
1461		MessagePacket receivedPacket = new MessagePacket();
1462		receivedPacket.setType(MessagePacket.TYPE_NORMAL);
1463		receivedPacket.setTo(to);
1464		receivedPacket.setFrom(account.getFullJid());
1465		Element received = receivedPacket.addChild("displayed",
1466				"urn:xmpp:chat-markers:0");
1467		received.setAttribute("id", id);
1468		account.getXmppConnection().sendMessagePacket(receivedPacket);
1469	}
1470
1471	public SecureRandom getRNG() {
1472		return this.mRandom;
1473	}
1474
1475	public PowerManager getPowerManager() {
1476		return this.pm;
1477	}
1478
1479	public void replyWithNotAcceptable(Account account, MessagePacket packet) {
1480		if (account.getStatus() == Account.STATUS_ONLINE) {
1481			MessagePacket error = this.mMessageGenerator.generateNotAcceptable(packet);
1482			account.getXmppConnection().sendMessagePacket(error);
1483		}
1484	}
1485}