XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import java.io.File;
   4import java.text.ParseException;
   5import java.text.SimpleDateFormat;
   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.Random;
  13
  14import org.openintents.openpgp.util.OpenPgpApi;
  15import org.openintents.openpgp.util.OpenPgpServiceConnection;
  16
  17import net.java.otr4j.OtrException;
  18import net.java.otr4j.session.Session;
  19import net.java.otr4j.session.SessionStatus;
  20
  21import eu.siacs.conversations.crypto.PgpEngine;
  22import eu.siacs.conversations.crypto.PgpEngine.OpenPgpException;
  23import eu.siacs.conversations.entities.Account;
  24import eu.siacs.conversations.entities.Contact;
  25import eu.siacs.conversations.entities.Conversation;
  26import eu.siacs.conversations.entities.Message;
  27import eu.siacs.conversations.entities.MucOptions;
  28import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  29import eu.siacs.conversations.entities.Presences;
  30import eu.siacs.conversations.persistance.DatabaseBackend;
  31import eu.siacs.conversations.persistance.FileBackend;
  32import eu.siacs.conversations.persistance.OnPhoneContactsMerged;
  33import eu.siacs.conversations.ui.OnAccountListChangedListener;
  34import eu.siacs.conversations.ui.OnConversationListChangedListener;
  35import eu.siacs.conversations.ui.OnRosterFetchedListener;
  36import eu.siacs.conversations.utils.ExceptionHelper;
  37import eu.siacs.conversations.utils.MessageParser;
  38import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  39import eu.siacs.conversations.utils.PhoneHelper;
  40import eu.siacs.conversations.utils.UIHelper;
  41import eu.siacs.conversations.xml.Element;
  42import eu.siacs.conversations.xmpp.OnBindListener;
  43import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  44import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
  45import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
  46import eu.siacs.conversations.xmpp.OnStatusChanged;
  47import eu.siacs.conversations.xmpp.OnTLSExceptionReceived;
  48import eu.siacs.conversations.xmpp.XmppConnection;
  49import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  50import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
  51import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
  52import eu.siacs.conversations.xmpp.stanzas.IqPacket;
  53import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
  54import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
  55import android.app.AlarmManager;
  56import android.app.PendingIntent;
  57import android.app.Service;
  58import android.content.Context;
  59import android.content.Intent;
  60import android.content.SharedPreferences;
  61import android.database.ContentObserver;
  62import android.database.DatabaseUtils;
  63import android.net.ConnectivityManager;
  64import android.net.NetworkInfo;
  65import android.net.Uri;
  66import android.os.Binder;
  67import android.os.Bundle;
  68import android.os.IBinder;
  69import android.os.PowerManager;
  70import android.os.PowerManager.WakeLock;
  71import android.os.SystemClock;
  72import android.preference.PreferenceManager;
  73import android.provider.ContactsContract;
  74import android.util.Log;
  75
  76public class XmppConnectionService extends Service {
  77
  78	protected static final String LOGTAG = "xmppService";
  79	public DatabaseBackend databaseBackend;
  80	private FileBackend fileBackend;
  81
  82	public long startDate;
  83
  84	private static final int PING_MAX_INTERVAL = 300;
  85	private static final int PING_MIN_INTERVAL = 10;
  86	private static final int PING_TIMEOUT = 5;
  87	private static final int CONNECT_TIMEOUT = 60;
  88	private static final long CARBON_GRACE_PERIOD = 60000L;
  89
  90	private List<Account> accounts;
  91	private List<Conversation> conversations = null;
  92	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(this);
  93	
  94	public OnConversationListChangedListener convChangedListener = null;
  95	private int convChangedListenerCount = 0;
  96	private OnAccountListChangedListener accountChangedListener = null;
  97	private OnTLSExceptionReceived tlsException = null;
  98
  99	public void setOnTLSExceptionReceivedListener(
 100			OnTLSExceptionReceived listener) {
 101		tlsException = listener;
 102	}
 103
 104	private Random mRandom = new Random(System.currentTimeMillis());
 105
 106	private long lastCarbonMessageReceived = -CARBON_GRACE_PERIOD;
 107
 108	private ContentObserver contactObserver = new ContentObserver(null) {
 109		@Override
 110		public void onChange(boolean selfChange) {
 111			super.onChange(selfChange);
 112			Log.d(LOGTAG, "contact list has changed");
 113			mergePhoneContactsWithRoster(null);
 114		}
 115	};
 116
 117	private XmppConnectionService service = this;
 118
 119	private final IBinder mBinder = new XmppConnectionBinder();
 120	private OnMessagePacketReceived messageListener = new OnMessagePacketReceived() {
 121
 122		@Override
 123		public void onMessagePacketReceived(Account account,
 124				MessagePacket packet) {
 125			Message message = null;
 126			boolean notify = true;
 127			if(getPreferences().getBoolean("notification_grace_period_after_carbon_received", true)){
 128				notify=(SystemClock.elapsedRealtime() - lastCarbonMessageReceived) > CARBON_GRACE_PERIOD;
 129			}
 130
 131			if ((packet.getType() == MessagePacket.TYPE_CHAT)) {
 132				String pgpBody = MessageParser.getPgpBody(packet);
 133				if (pgpBody != null) {
 134					message = MessageParser.parsePgpChat(pgpBody, packet,
 135							account, service);
 136					message.markUnread();
 137				} else if ((packet.getBody()!=null) && (packet.getBody().startsWith("?OTR"))) {
 138					message = MessageParser.parseOtrChat(packet, account,
 139							service);
 140					if (message != null) {
 141						message.markUnread();
 142					}
 143				} else if (packet.hasChild("body")) {
 144					message = MessageParser.parsePlainTextChat(packet, account,
 145							service);
 146					message.markUnread();
 147				} else if (packet.hasChild("received")
 148						|| (packet.hasChild("sent"))) {
 149					message = MessageParser.parseCarbonMessage(packet, account,
 150							service);
 151					if (message != null) {
 152						if (message.getStatus() == Message.STATUS_SEND) {
 153							lastCarbonMessageReceived = SystemClock.elapsedRealtime();
 154							notify = false;
 155							message.getConversation().markRead();
 156						} else {
 157							message.markUnread();
 158						}
 159					}
 160				}
 161
 162			} else if (packet.getType() == MessagePacket.TYPE_GROUPCHAT) {
 163				message = MessageParser
 164						.parseGroupchat(packet, account, service);
 165				if (message != null) {
 166					if (message.getStatus() == Message.STATUS_RECIEVED) {
 167						message.markUnread();
 168					} else {
 169						message.getConversation().markRead();
 170						notify = false;
 171					}
 172				}
 173			} else if (packet.getType() == MessagePacket.TYPE_ERROR) {
 174				MessageParser.parseError(packet, account, service);
 175				return;
 176			} else if (packet.getType() == MessagePacket.TYPE_NORMAL) {
 177				if (packet.hasChild("x")) {
 178					Element x = packet.findChild("x");
 179					if (x.hasChild("invite")) {
 180						findOrCreateConversation(account, packet.getFrom(),
 181								true);
 182						if (convChangedListener != null) {
 183							convChangedListener.onConversationListChanged();
 184						}
 185						Log.d(LOGTAG,
 186								"invitation received to " + packet.getFrom());
 187					}
 188
 189				} else {
 190					// Log.d(LOGTAG, "unparsed message " + packet.toString());
 191				}
 192			}
 193			if ((message == null) || (message.getBody() == null)) {
 194				return;
 195			}
 196			if (packet.hasChild("delay")) {
 197				try {
 198					String stamp = packet.findChild("delay").getAttribute(
 199							"stamp");
 200					stamp = stamp.replace("Z", "+0000");
 201					Date date = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ")
 202							.parse(stamp);
 203					message.setTime(date.getTime());
 204				} catch (ParseException e) {
 205					Log.d(LOGTAG, "error trying to parse date" + e.getMessage());
 206				}
 207			}
 208			Conversation conversation = message.getConversation();
 209			conversation.getMessages().add(message);
 210			if (packet.getType() != MessagePacket.TYPE_ERROR) {
 211				databaseBackend.createMessage(message);
 212			}
 213			if (convChangedListener != null) {
 214				convChangedListener.onConversationListChanged();
 215			} else {
 216				UIHelper.updateNotification(getApplicationContext(),
 217						getConversations(), message.getConversation(), notify);
 218			}
 219		}
 220	};
 221	private OnStatusChanged statusListener = new OnStatusChanged() {
 222
 223		@Override
 224		public void onStatusChanged(Account account) {
 225			if (accountChangedListener != null) {
 226				accountChangedListener.onAccountListChangedListener();
 227			}
 228			if (account.getStatus() == Account.STATUS_ONLINE) {
 229				List<Conversation> conversations = getConversations();
 230				for (int i = 0; i < conversations.size(); ++i) {
 231					if (conversations.get(i).getAccount() == account) {
 232						sendUnsendMessages(conversations.get(i));
 233					}
 234				}
 235				scheduleWakeupCall(PING_MAX_INTERVAL, true);
 236			} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 237				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 238					int timeToReconnect = mRandom.nextInt(50) + 10;
 239					scheduleWakeupCall(timeToReconnect, false);
 240				}
 241
 242			} else if (account.getStatus() == Account.STATUS_REGISTRATION_SUCCESSFULL) {
 243				databaseBackend.updateAccount(account);
 244				reconnectAccount(account, true);
 245			} else {
 246				UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
 247			}
 248		}
 249	};
 250
 251	private OnPresencePacketReceived presenceListener = new OnPresencePacketReceived() {
 252
 253		@Override
 254		public void onPresencePacketReceived(Account account,
 255				PresencePacket packet) {
 256			if (packet.hasChild("x","http://jabber.org/protocol/muc#user")) {
 257				Conversation muc = findMuc(
 258						packet.getAttribute("from").split("/")[0], account);
 259				if (muc != null) {
 260					muc.getMucOptions().processPacket(packet);
 261				} else {
 262					Log.d(LOGTAG,account.getJid()+": could not find muc for received muc package "+packet.toString());
 263				}
 264			} else if (packet.hasChild("x","http://jabber.org/protocol/muc")) {
 265				Conversation muc = findMuc(packet.getAttribute("from").split("/")[0], account);
 266				if (muc != null) {
 267					Log.d(LOGTAG,account.getJid()+": reading muc status packet "+packet.toString());
 268					int error = muc.getMucOptions().getError();
 269					muc.getMucOptions().processPacket(packet);
 270					if ((muc.getMucOptions().getError() != error)
 271							&& (convChangedListener != null)) {
 272						Log.d(LOGTAG, "muc error status changed");
 273						convChangedListener.onConversationListChanged();
 274					}
 275				}
 276			} else {
 277				String[] fromParts = packet.getAttribute("from").split("/");
 278				String type = packet.getAttribute("type");
 279				if (fromParts[0].equals(account.getJid())) {
 280					if (fromParts.length==2) {
 281						if (type == null) {
 282							account.updatePresence(fromParts[1],Presences.parseShow(packet.findChild("show")));
 283						} else if (type.equals("unavailable")) {
 284							account.removePresence(fromParts[1]);
 285						}
 286					}
 287						
 288				} else {
 289					Contact contact = findContact(account, fromParts[0]);
 290					if (contact == null) {
 291						// most likely roster not synced
 292						return;
 293					}
 294					if (type == null) {
 295						if (fromParts.length == 2) {
 296							contact.updatePresence(fromParts[1], Presences.parseShow(packet.findChild("show")));
 297							PgpEngine pgp = getPgpEngine();
 298							if (pgp != null) {
 299								Element x = packet.findChild("x","jabber:x:signed");
 300								if (x != null) {
 301									try {
 302										Element status = packet.findChild("status");
 303										String msg;
 304										if (status!=null) {
 305											msg = status.getContent();
 306										} else {
 307											msg = "";
 308										}
 309										contact.setPgpKeyId(pgp.fetchKeyId(account,msg, x
 310														.getContent()));
 311									} catch (OpenPgpException e) {
 312										Log.d(LOGTAG, "faulty pgp. just ignore");
 313									}
 314								}
 315							}
 316							databaseBackend.updateContact(contact);
 317						} else {
 318							// Log.d(LOGTAG,"presence without resource "+packet.toString());
 319						}
 320					} else if (type.equals("unavailable")) {
 321						if (fromParts.length != 2) {
 322							// Log.d(LOGTAG,"received presence with no resource "+packet.toString());
 323						} else {
 324							contact.removePresence(fromParts[1]);
 325							databaseBackend.updateContact(contact);
 326						}
 327					} else if (type.equals("subscribe")) {
 328						if (contact
 329								.getSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT)) {
 330							sendPresenceUpdatesTo(contact);
 331							contact.setSubscriptionOption(Contact.Subscription.FROM);
 332							contact.resetSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
 333							replaceContactInConversation(contact.getJid(),
 334									contact);
 335							databaseBackend.updateContact(contact);
 336							if ((contact
 337									.getSubscriptionOption(Contact.Subscription.ASKING))
 338									&& (!contact
 339											.getSubscriptionOption(Contact.Subscription.TO))) {
 340								requestPresenceUpdatesFrom(contact);
 341							}
 342						} else {
 343							// TODO: ask user to handle it maybe
 344						}
 345					} else {
 346						//Log.d(LOGTAG, packet.toString());
 347					}
 348					replaceContactInConversation(contact.getJid(), contact);
 349				}
 350			}
 351		}
 352	};
 353
 354	private OnIqPacketReceived unknownIqListener = new OnIqPacketReceived() {
 355
 356		@Override
 357		public void onIqPacketReceived(Account account, IqPacket packet) {
 358			if (packet.hasChild("query")) {
 359				Element query = packet.findChild("query");
 360				String xmlns = query.getAttribute("xmlns");
 361				if ((xmlns != null) && (xmlns.equals("jabber:iq:roster"))) {
 362					processRosterItems(account, query);
 363					mergePhoneContactsWithRoster(null);
 364				}
 365			} else {
 366				Log.d(LOGTAG,"iq packet arrived "+packet.toString());
 367			}
 368		}
 369	};
 370	
 371	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 372		
 373		@Override
 374		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 375			mJingleConnectionManager.deliverPacket(account, packet);
 376		}
 377	};
 378
 379	private OpenPgpServiceConnection pgpServiceConnection;
 380	private PgpEngine mPgpEngine = null;
 381	private Intent pingIntent;
 382	private PendingIntent pendingPingIntent = null;
 383	private WakeLock wakeLock;
 384	private PowerManager pm;
 385
 386	public PgpEngine getPgpEngine() {
 387		if (pgpServiceConnection.isBound()) {
 388			if (this.mPgpEngine == null) {
 389				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 390						getApplicationContext(),
 391						pgpServiceConnection.getService()));
 392			}
 393			return mPgpEngine;
 394		} else {
 395			return null;
 396		}
 397
 398	}
 399
 400	public FileBackend getFileBackend() {
 401		return this.fileBackend;
 402	}
 403	
 404	public Message attachImageToConversation(Conversation conversation, String presence, Uri uri) {
 405		Message message = new Message(conversation, "", Message.ENCRYPTION_NONE);
 406		message.setPresence(presence);
 407		message.setType(Message.TYPE_IMAGE);
 408		File file = this.fileBackend.copyImageToPrivateStorage(message, uri);
 409		conversation.getMessages().add(message);
 410		databaseBackend.createMessage(message);
 411		sendMessage(message, null);
 412		return message;
 413	}
 414	
 415	
 416	protected Conversation findMuc(String name, Account account) {
 417		for (Conversation conversation : this.conversations) {
 418			if (conversation.getContactJid().split("/")[0].equals(name)
 419					&& (conversation.getAccount() == account)) {
 420				return conversation;
 421			}
 422		}
 423		return null;
 424	}
 425
 426	private void processRosterItems(Account account, Element elements) {
 427		String version = elements.getAttribute("ver");
 428		if (version != null) {
 429			account.setRosterVersion(version);
 430			databaseBackend.updateAccount(account);
 431		}
 432		for (Element item : elements.getChildren()) {
 433			if (item.getName().equals("item")) {
 434				String jid = item.getAttribute("jid");
 435				String subscription = item.getAttribute("subscription");
 436				Contact contact = databaseBackend.findContact(account, jid);
 437				if (contact == null) {
 438					if (!subscription.equals("remove")) {
 439						String name = item.getAttribute("name");
 440						if (name == null) {
 441							name = jid.split("@")[0];
 442						}
 443						contact = new Contact(account, name, jid, null);
 444						contact.parseSubscriptionFromElement(item);
 445						databaseBackend.createContact(contact);
 446					}
 447				} else {
 448					if (subscription.equals("remove")) {
 449						databaseBackend.deleteContact(contact);
 450						replaceContactInConversation(contact.getJid(), null);
 451					} else {
 452						contact.parseSubscriptionFromElement(item);
 453						databaseBackend.updateContact(contact);
 454						replaceContactInConversation(contact.getJid(), contact);
 455					}
 456				}
 457			}
 458		}
 459	}
 460
 461	private void replaceContactInConversation(String jid, Contact contact) {
 462		List<Conversation> conversations = getConversations();
 463		for (int i = 0; i < conversations.size(); ++i) {
 464			if ((conversations.get(i).getContactJid().equals(jid))) {
 465				conversations.get(i).setContact(contact);
 466				break;
 467			}
 468		}
 469	}
 470
 471	public class XmppConnectionBinder extends Binder {
 472		public XmppConnectionService getService() {
 473			return XmppConnectionService.this;
 474		}
 475	}
 476
 477	@Override
 478	public int onStartCommand(Intent intent, int flags, int startId) {
 479		this.wakeLock.acquire();
 480		// Log.d(LOGTAG,"calling start service. caller was:"+intent.getAction());
 481		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 482				.getSystemService(Context.CONNECTIVITY_SERVICE);
 483		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 484		boolean isConnected = activeNetwork != null
 485				&& activeNetwork.isConnected();
 486
 487		for (Account account : accounts) {
 488			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 489				if (!isConnected) {
 490					account.setStatus(Account.STATUS_NO_INTERNET);
 491					if (statusListener != null) {
 492						statusListener.onStatusChanged(account);
 493					}
 494				} else {
 495					if (account.getStatus() == Account.STATUS_NO_INTERNET) {
 496						account.setStatus(Account.STATUS_OFFLINE);
 497						if (statusListener != null) {
 498							statusListener.onStatusChanged(account);
 499						}
 500					}
 501
 502					// TODO 3 remaining cases
 503					if (account.getStatus() == Account.STATUS_ONLINE) {
 504						long lastReceived = account.getXmppConnection().lastPaketReceived;
 505						long lastSent = account.getXmppConnection().lastPingSent;
 506						if (lastSent - lastReceived >= PING_TIMEOUT * 1000) {
 507							Log.d(LOGTAG, account.getJid() + ": ping timeout");
 508							this.reconnectAccount(account, true);
 509						} else if (SystemClock.elapsedRealtime() - lastReceived >= PING_MIN_INTERVAL * 1000) {
 510							account.getXmppConnection().sendPing();
 511							account.getXmppConnection().lastPingSent = SystemClock
 512									.elapsedRealtime();
 513							this.scheduleWakeupCall(2, false);
 514						}
 515					} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 516						if (account.getXmppConnection() == null) {
 517							account.setXmppConnection(this
 518									.createConnection(account));
 519						}
 520						account.getXmppConnection().lastPingSent = SystemClock
 521								.elapsedRealtime();
 522						new Thread(account.getXmppConnection()).start();
 523					} else if ((account.getStatus() == Account.STATUS_CONNECTING)
 524							&& ((SystemClock.elapsedRealtime() - account
 525									.getXmppConnection().lastConnect) / 1000 >= CONNECT_TIMEOUT)) {
 526						Log.d(LOGTAG, account.getJid()
 527								+ ": time out during connect reconnecting");
 528						reconnectAccount(account, true);
 529					} else {
 530						Log.d(LOGTAG,
 531								"seconds since last connect:"
 532										+ ((SystemClock.elapsedRealtime() - account
 533												.getXmppConnection().lastConnect) / 1000));
 534						Log.d(LOGTAG,
 535								account.getJid() + ": status="
 536										+ account.getStatus());
 537						// TODO notify user of ssl cert problem or auth problem
 538						// or what ever
 539					}
 540					// in any case. reschedule wakup call
 541					this.scheduleWakeupCall(PING_MAX_INTERVAL, true);
 542				}
 543				if (accountChangedListener != null) {
 544					accountChangedListener.onAccountListChangedListener();
 545				}
 546			}
 547		}
 548		if (wakeLock.isHeld()) {
 549			wakeLock.release();
 550		}
 551		return START_STICKY;
 552	}
 553
 554	@Override
 555	public void onCreate() {
 556		ExceptionHelper.init(getApplicationContext());
 557		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 558		this.fileBackend = new FileBackend(getApplicationContext());
 559		this.accounts = databaseBackend.getAccounts();
 560
 561		this.getConversations();
 562		
 563		getContentResolver().registerContentObserver(
 564				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 565		this.pgpServiceConnection = new OpenPgpServiceConnection(
 566				getApplicationContext(), "org.sufficientlysecure.keychain");
 567		this.pgpServiceConnection.bindToService();
 568
 569		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 570		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
 571				"XmppConnectionService");
 572	}
 573
 574	@Override
 575	public void onDestroy() {
 576		super.onDestroy();
 577		for (Account account : accounts) {
 578			if (account.getXmppConnection() != null) {
 579				disconnect(account, true);
 580			}
 581		}
 582	}
 583
 584	protected void scheduleWakeupCall(int seconds, boolean ping) {
 585		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 586		Context context = getApplicationContext();
 587		AlarmManager alarmManager = (AlarmManager) context
 588				.getSystemService(Context.ALARM_SERVICE);
 589
 590		if (ping) {
 591			if (this.pingIntent == null) {
 592				this.pingIntent = new Intent(context, EventReceiver.class);
 593				this.pingIntent.setAction("ping");
 594				this.pingIntent.putExtra("time", timeToWake);
 595				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 596						this.pingIntent, 0);
 597				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 598						timeToWake, pendingPingIntent);
 599				// Log.d(LOGTAG,"schedule ping in "+seconds+" seconds");
 600			} else {
 601				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
 602				if (scheduledTime < SystemClock.elapsedRealtime()
 603						|| (scheduledTime > timeToWake)) {
 604					this.pingIntent.putExtra("time", timeToWake);
 605					alarmManager.cancel(this.pendingPingIntent);
 606					this.pendingPingIntent = PendingIntent.getBroadcast(
 607							context, 0, this.pingIntent, 0);
 608					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 609							timeToWake, pendingPingIntent);
 610					// Log.d(LOGTAG,"reschedule old ping to ping in "+seconds+" seconds");
 611				}
 612			}
 613		} else {
 614			Intent intent = new Intent(context, EventReceiver.class);
 615			intent.setAction("ping_check");
 616			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 617					intent, 0);
 618			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 619					alarmIntent);
 620		}
 621
 622	}
 623
 624	public XmppConnection createConnection(Account account) {
 625		SharedPreferences sharedPref = getPreferences();
 626		account.setResource(sharedPref.getString("resource", "mobile").toLowerCase(Locale.getDefault()));
 627		XmppConnection connection = new XmppConnection(account, this.pm);
 628		connection.setOnMessagePacketReceivedListener(this.messageListener);
 629		connection.setOnStatusChangedListener(this.statusListener);
 630		connection.setOnPresencePacketReceivedListener(this.presenceListener);
 631		connection
 632				.setOnUnregisteredIqPacketReceivedListener(this.unknownIqListener);
 633		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 634		connection
 635				.setOnTLSExceptionReceivedListener(new OnTLSExceptionReceived() {
 636
 637					@Override
 638					public void onTLSExceptionReceived(String fingerprint,
 639							Account account) {
 640						Log.d(LOGTAG, "tls exception arrived in service");
 641						if (tlsException != null) {
 642							tlsException.onTLSExceptionReceived(fingerprint,
 643									account);
 644						}
 645					}
 646				});
 647		connection.setOnBindListener(new OnBindListener() {
 648
 649			@Override
 650			public void onBind(Account account) {
 651				databaseBackend.clearPresences(account);
 652				account.clearPresences(); // self presences
 653				if (account.getXmppConnection().hasFeatureRosterManagment()) {
 654					updateRoster(account, null);
 655				}
 656				connectMultiModeConversations(account);
 657				if (convChangedListener != null) {
 658					convChangedListener.onConversationListChanged();
 659				}
 660			}
 661		});
 662		return connection;
 663	}
 664
 665	synchronized public void sendMessage(Message message, String presence) {
 666		Account account = message.getConversation().getAccount();
 667		Conversation conv = message.getConversation();
 668		MessagePacket packet = null;
 669		boolean saveInDb = false;
 670		boolean addToConversation = false;
 671		boolean send = false;
 672		if (account.getStatus() == Account.STATUS_ONLINE) {
 673			if (message.getType() == Message.TYPE_IMAGE) {
 674				mJingleConnectionManager.createNewConnection(message);
 675			} else {
 676				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 677					if (!conv.hasValidOtrSession()) {
 678						// starting otr session. messages will be send later
 679						conv.startOtrSession(getApplicationContext(), presence,true);
 680					} else if (conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 681						// otr session aleary exists, creating message packet
 682						// accordingly
 683						packet = prepareMessagePacket(account, message,
 684								conv.getOtrSession());
 685						send = true;
 686						message.setStatus(Message.STATUS_SEND);
 687					}
 688					saveInDb = true;
 689					addToConversation = true;
 690				} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 691					message.getConversation().endOtrIfNeeded();
 692					long keyId = message.getConversation().getContact()
 693							.getPgpKeyId();
 694					packet = new MessagePacket();
 695					packet.setType(MessagePacket.TYPE_CHAT);
 696					packet.setFrom(message.getConversation().getAccount()
 697							.getFullJid());
 698					packet.setTo(message.getCounterpart());
 699					packet.setBody("This is an XEP-0027 encryted message");
 700					packet.addChild("x", "jabber:x:encrypted").setContent(message.getEncryptedBody());
 701					message.setStatus(Message.STATUS_SEND);
 702					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 703					saveInDb = true;
 704					addToConversation = true;
 705					send = true;
 706				} else {
 707					message.getConversation().endOtrIfNeeded();
 708					// don't encrypt
 709					if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 710						message.setStatus(Message.STATUS_SEND);
 711						saveInDb = true;
 712						addToConversation = true;
 713					}
 714					packet = prepareMessagePacket(account, message, null);
 715					send = true;
 716				}
 717			}
 718		} else {
 719			// account is offline
 720			saveInDb = true;
 721			addToConversation = true;
 722
 723		}
 724		if (saveInDb) {
 725			databaseBackend.createMessage(message);
 726		}
 727		if (addToConversation) {
 728			conv.getMessages().add(message);
 729			if (convChangedListener != null) {
 730				convChangedListener.onConversationListChanged();
 731			}
 732		}
 733		if ((send)&&(packet!=null)) {
 734			account.getXmppConnection().sendMessagePacket(packet);
 735		}
 736
 737	}
 738
 739	private void sendUnsendMessages(Conversation conversation) {
 740		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 741			if ((conversation.getMessages().get(i).getStatus() == Message.STATUS_UNSEND)&&(conversation.getMessages().get(i).getEncryption() == Message.ENCRYPTION_NONE)) {
 742				Message message = conversation.getMessages().get(i);
 743				MessagePacket packet = prepareMessagePacket(
 744						conversation.getAccount(), message, null);
 745				conversation.getAccount().getXmppConnection()
 746						.sendMessagePacket(packet);
 747				message.setStatus(Message.STATUS_SEND);
 748				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 749					databaseBackend.updateMessage(message);
 750				} else {
 751					databaseBackend.deleteMessage(message);
 752					conversation.getMessages().remove(i);
 753					i--;
 754				}
 755			}
 756		}
 757	}
 758
 759	public MessagePacket prepareMessagePacket(Account account, Message message,
 760			Session otrSession) {
 761		MessagePacket packet = new MessagePacket();
 762		if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 763			packet.setType(MessagePacket.TYPE_CHAT);
 764			if (otrSession != null) {
 765				try {
 766					packet.setBody(otrSession.transformSending(message
 767							.getBody()));
 768				} catch (OtrException e) {
 769					Log.d(LOGTAG,
 770							account.getJid()
 771									+ ": could not encrypt message to "
 772									+ message.getCounterpart());
 773				}
 774				packet.addChild("private","urn:xmpp:carbons:2");
 775				packet.addChild("no-copy","urn:xmpp:hints");
 776				packet.setTo(otrSession.getSessionID().getAccountID() + "/"
 777						+ otrSession.getSessionID().getUserID());
 778				packet.setFrom(account.getFullJid());
 779			} else {
 780				packet.setBody(message.getBody());
 781				packet.setTo(message.getCounterpart());
 782				packet.setFrom(account.getJid());
 783			}
 784		} else if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 785			packet.setType(MessagePacket.TYPE_GROUPCHAT);
 786			packet.setBody(message.getBody());
 787			packet.setTo(message.getCounterpart().split("/")[0]);
 788			packet.setFrom(account.getJid());
 789		}
 790		packet.setId(message.getUuid());
 791		return packet;
 792	}
 793
 794	private void getRoster(Account account,
 795			final OnRosterFetchedListener listener) {
 796		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 797		for (int i = 0; i < contacts.size(); ++i) {
 798			contacts.get(i).setAccount(account);
 799		}
 800		if (listener != null) {
 801			listener.onRosterFetched(contacts);
 802		}
 803	}
 804
 805	public List<Contact> getRoster(Account account) {
 806		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 807		for (int i = 0; i < contacts.size(); ++i) {
 808			contacts.get(i).setAccount(account);
 809		}
 810		return contacts;
 811	}
 812
 813	public void updateRoster(final Account account,
 814			final OnRosterFetchedListener listener) {
 815		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 816		if (!"".equals(account.getRosterVersion())) {
 817			Log.d(LOGTAG, account.getJid() + ": fetching roster version "
 818					+ account.getRosterVersion());
 819		} else {
 820			Log.d(LOGTAG, account.getJid() + ": fetching roster");
 821		}
 822		iqPacket.query("jabber:iq:roster").setAttribute("ver", account.getRosterVersion());
 823		account.getXmppConnection().sendIqPacket(iqPacket,
 824				new OnIqPacketReceived() {
 825
 826					@Override
 827					public void onIqPacketReceived(final Account account,
 828							IqPacket packet) {
 829						Element roster = packet.findChild("query");
 830						if (roster != null) {
 831							Log.d(LOGTAG, account.getJid()
 832									+ ": processing roster");
 833							processRosterItems(account, roster);
 834							StringBuilder mWhere = new StringBuilder();
 835							mWhere.append("jid NOT IN(");
 836							List<Element> items = roster.getChildren();
 837							for (int i = 0; i < items.size(); ++i) {
 838								mWhere.append(DatabaseUtils
 839										.sqlEscapeString(items.get(i)
 840												.getAttribute("jid")));
 841								if (i != items.size() - 1) {
 842									mWhere.append(",");
 843								}
 844							}
 845							mWhere.append(") and accountUuid = \"");
 846							mWhere.append(account.getUuid());
 847							mWhere.append("\"");
 848							List<Contact> contactsToDelete = databaseBackend
 849									.getContacts(mWhere.toString());
 850							for (Contact contact : contactsToDelete) {
 851								databaseBackend.deleteContact(contact);
 852								replaceContactInConversation(contact.getJid(),
 853										null);
 854							}
 855
 856						} else {
 857							Log.d(LOGTAG, account.getJid()
 858									+ ": empty roster returend");
 859						}
 860						mergePhoneContactsWithRoster(new OnPhoneContactsMerged() {
 861
 862							@Override
 863							public void phoneContactsMerged() {
 864								if (listener != null) {
 865									getRoster(account, listener);
 866								}
 867							}
 868						});
 869					}
 870				});
 871	}
 872
 873	public void mergePhoneContactsWithRoster(
 874			final OnPhoneContactsMerged listener) {
 875		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 876				new OnPhoneContactsLoadedListener() {
 877					@Override
 878					public void onPhoneContactsLoaded(
 879							Hashtable<String, Bundle> phoneContacts) {
 880						List<Contact> contacts = databaseBackend
 881								.getContactsByAccount(null);
 882						for (int i = 0; i < contacts.size(); ++i) {
 883							Contact contact = contacts.get(i);
 884							if (phoneContacts.containsKey(contact.getJid())) {
 885								Bundle phoneContact = phoneContacts.get(contact
 886										.getJid());
 887								String systemAccount = phoneContact
 888										.getInt("phoneid")
 889										+ "#"
 890										+ phoneContact.getString("lookup");
 891								contact.setSystemAccount(systemAccount);
 892								contact.setPhotoUri(phoneContact
 893										.getString("photouri"));
 894								contact.setDisplayName(phoneContact
 895										.getString("displayname"));
 896								databaseBackend.updateContact(contact);
 897								replaceContactInConversation(contact.getJid(),
 898										contact);
 899							} else {
 900								if ((contact.getSystemAccount() != null)
 901										|| (contact.getProfilePhoto() != null)) {
 902									contact.setSystemAccount(null);
 903									contact.setPhotoUri(null);
 904									databaseBackend.updateContact(contact);
 905									replaceContactInConversation(
 906											contact.getJid(), contact);
 907								}
 908							}
 909						}
 910						if (listener != null) {
 911							listener.phoneContactsMerged();
 912						}
 913					}
 914				});
 915	}
 916
 917	public List<Conversation> getConversations() {
 918		if (this.conversations == null) {
 919			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
 920			for (Account account : this.accounts) {
 921				accountLookupTable.put(account.getUuid(), account);
 922			}
 923			this.conversations = databaseBackend
 924					.getConversations(Conversation.STATUS_AVAILABLE);
 925			for (Conversation conv : this.conversations) {
 926				Account account = accountLookupTable.get(conv.getAccountUuid());
 927				conv.setAccount(account);
 928				conv.setContact(findContact(account, conv.getContactJid()));
 929				conv.setMessages(databaseBackend.getMessages(conv, 50));
 930			}
 931		}
 932		Collections.sort(this.conversations, new Comparator<Conversation>() {
 933			@Override
 934			public int compare(Conversation lhs, Conversation rhs) {
 935				return (int) (rhs.getLatestMessage().getTimeSent() - lhs
 936						.getLatestMessage().getTimeSent());
 937			}
 938		});
 939		return this.conversations;
 940	}
 941
 942	public List<Account> getAccounts() {
 943		return this.accounts;
 944	}
 945
 946	public Contact findContact(Account account, String jid) {
 947		Contact contact = databaseBackend.findContact(account, jid);
 948		if (contact != null) {
 949			contact.setAccount(account);
 950		}
 951		return contact;
 952	}
 953
 954	public Conversation findOrCreateConversation(Account account, String jid,
 955			boolean muc) {
 956		for (Conversation conv : this.getConversations()) {
 957			if ((conv.getAccount().equals(account))
 958					&& (conv.getContactJid().split("/")[0].equals(jid))) {
 959				return conv;
 960			}
 961		}
 962		Conversation conversation = databaseBackend.findConversation(account,
 963				jid);
 964		if (conversation != null) {
 965			conversation.setStatus(Conversation.STATUS_AVAILABLE);
 966			conversation.setAccount(account);
 967			if (muc) {
 968				conversation.setMode(Conversation.MODE_MULTI);
 969			} else {
 970				conversation.setMode(Conversation.MODE_SINGLE);
 971			}
 972			conversation.setMessages(databaseBackend.getMessages(conversation,
 973					50));
 974			this.databaseBackend.updateConversation(conversation);
 975			conversation.setContact(findContact(account,
 976					conversation.getContactJid()));
 977		} else {
 978			String conversationName;
 979			Contact contact = findContact(account, jid);
 980			if (contact != null) {
 981				conversationName = contact.getDisplayName();
 982			} else {
 983				conversationName = jid.split("@")[0];
 984			}
 985			if (muc) {
 986				conversation = new Conversation(conversationName, account, jid,
 987						Conversation.MODE_MULTI);
 988			} else {
 989				conversation = new Conversation(conversationName, account, jid,
 990						Conversation.MODE_SINGLE);
 991			}
 992			conversation.setContact(contact);
 993			this.databaseBackend.createConversation(conversation);
 994		}
 995		this.conversations.add(conversation);
 996		if ((account.getStatus() == Account.STATUS_ONLINE)&&(conversation.getMode() == Conversation.MODE_MULTI)) {
 997			joinMuc(conversation);
 998		}
 999		if (this.convChangedListener != null) {
1000			this.convChangedListener.onConversationListChanged();
1001		}
1002		return conversation;
1003	}
1004
1005	public void archiveConversation(Conversation conversation) {
1006		if (conversation.getMode() == Conversation.MODE_MULTI) {
1007			leaveMuc(conversation);
1008		} else {
1009			conversation.endOtrIfNeeded();
1010		}
1011		this.databaseBackend.updateConversation(conversation);
1012		this.conversations.remove(conversation);
1013		if (this.convChangedListener != null) {
1014			this.convChangedListener.onConversationListChanged();
1015		}
1016	}
1017
1018	public int getConversationCount() {
1019		return this.databaseBackend.getConversationCount();
1020	}
1021
1022	public void createAccount(Account account) {
1023		databaseBackend.createAccount(account);
1024		this.accounts.add(account);
1025		this.reconnectAccount(account, false);
1026		if (accountChangedListener != null)
1027			accountChangedListener.onAccountListChangedListener();
1028	}
1029
1030	public void deleteContact(Contact contact) {
1031		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1032		Element query = iq.query("jabber:iq:roster");
1033		query.addChild("item").setAttribute("jid", contact.getJid()).setAttribute("subscription", "remove");
1034		contact.getAccount().getXmppConnection().sendIqPacket(iq, null);
1035		replaceContactInConversation(contact.getJid(), null);
1036		databaseBackend.deleteContact(contact);
1037	}
1038
1039	public void updateAccount(Account account) {
1040		this.statusListener.onStatusChanged(account);
1041		databaseBackend.updateAccount(account);
1042		reconnectAccount(account, false);
1043		if (accountChangedListener != null)
1044			accountChangedListener.onAccountListChangedListener();
1045	}
1046
1047	public void deleteAccount(Account account) {
1048		if (account.getXmppConnection() != null) {
1049			this.disconnect(account, true);
1050		}
1051		databaseBackend.deleteAccount(account);
1052		this.accounts.remove(account);
1053		if (accountChangedListener != null)
1054			accountChangedListener.onAccountListChangedListener();
1055	}
1056
1057	public void setOnConversationListChangedListener(
1058			OnConversationListChangedListener listener) {
1059		this.convChangedListener = listener;
1060		this.convChangedListenerCount++;
1061	}
1062
1063	public void removeOnConversationListChangedListener() {
1064		this.convChangedListenerCount--;
1065		if (this.convChangedListenerCount==0) {
1066			this.convChangedListener = null;
1067		}
1068	}
1069
1070	public void setOnAccountListChangedListener(
1071			OnAccountListChangedListener listener) {
1072		this.accountChangedListener = listener;
1073	}
1074
1075	public void removeOnAccountListChangedListener() {
1076		this.accountChangedListener = null;
1077	}
1078
1079	public void connectMultiModeConversations(Account account) {
1080		List<Conversation> conversations = getConversations();
1081		for (int i = 0; i < conversations.size(); i++) {
1082			Conversation conversation = conversations.get(i);
1083			if ((conversation.getMode() == Conversation.MODE_MULTI)
1084					&& (conversation.getAccount() == account)) {
1085				joinMuc(conversation);
1086			}
1087		}
1088	}
1089
1090	public void joinMuc(Conversation conversation) {
1091		String[] mucParts = conversation.getContactJid().split("/");
1092		String muc;
1093		String nick;
1094		if (mucParts.length == 2) {
1095			muc = mucParts[0];
1096			nick = mucParts[1];
1097		} else {
1098			muc = mucParts[0];
1099			nick = conversation.getAccount().getUsername();
1100		}
1101		PresencePacket packet = new PresencePacket();
1102		packet.setAttribute("to", muc + "/" + nick);
1103		Element x = new Element("x");
1104		x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1105		if (conversation.getMessages().size() != 0) {
1106			long lastMsgTime = conversation.getLatestMessage().getTimeSent();
1107			long diff = (System.currentTimeMillis() - lastMsgTime) / 1000 - 1;
1108			x.addChild("history").setAttribute("seconds", diff + "");
1109		}
1110		packet.addChild(x);
1111		conversation.getAccount().getXmppConnection()
1112				.sendPresencePacket(packet);
1113	}
1114
1115	private OnRenameListener renameListener = null;
1116
1117	public void setOnRenameListener(OnRenameListener listener) {
1118		this.renameListener = listener;
1119	}
1120
1121	public void renameInMuc(final Conversation conversation, final String nick) {
1122		final MucOptions options = conversation.getMucOptions();
1123		if (options.online()) {
1124			options.setOnRenameListener(new OnRenameListener() {
1125
1126				@Override
1127				public void onRename(boolean success) {
1128					if (renameListener != null) {
1129						renameListener.onRename(success);
1130					}
1131					if (success) {
1132						databaseBackend.updateConversation(conversation);
1133					}
1134				}
1135			});
1136			options.flagAboutToRename();
1137			PresencePacket packet = new PresencePacket();
1138			packet.setAttribute("to",
1139					conversation.getContactJid().split("/")[0] + "/" + nick);
1140			packet.setAttribute("from", conversation.getAccount().getFullJid());
1141
1142			conversation.getAccount().getXmppConnection()
1143					.sendPresencePacket(packet, null);
1144		} else {
1145			String jid = conversation.getContactJid().split("/")[0] + "/"
1146					+ nick;
1147			conversation.setContactJid(jid);
1148			databaseBackend.updateConversation(conversation);
1149			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
1150				joinMuc(conversation);
1151			}
1152		}
1153	}
1154
1155	public void leaveMuc(Conversation conversation) {
1156		PresencePacket packet = new PresencePacket();
1157		packet.setAttribute("to", conversation.getContactJid().split("/")[0] + "/" + conversation.getMucOptions().getNick());
1158		packet.setAttribute("from", conversation.getAccount().getFullJid());
1159		packet.setAttribute("type", "unavailable");
1160		Log.d(LOGTAG,"send leaving muc " + packet);
1161		conversation.getAccount().getXmppConnection()
1162				.sendPresencePacket(packet);
1163		conversation.getMucOptions().setOffline();
1164	}
1165
1166	public void disconnect(Account account, boolean force) {
1167		if ((account.getStatus() == Account.STATUS_ONLINE)
1168				|| (account.getStatus() == Account.STATUS_DISABLED)) {
1169			if (!force) {
1170				List<Conversation> conversations = getConversations();
1171				for (int i = 0; i < conversations.size(); i++) {
1172					Conversation conversation = conversations.get(i);
1173					if (conversation.getAccount() == account) {
1174						if (conversation.getMode() == Conversation.MODE_MULTI) {
1175							leaveMuc(conversation);
1176						} else {
1177							conversation.endOtrIfNeeded();
1178						}
1179					}
1180				}
1181			}
1182			account.getXmppConnection().disconnect(force);
1183		}
1184	}
1185
1186	@Override
1187	public IBinder onBind(Intent intent) {
1188		return mBinder;
1189	}
1190
1191	public void updateContact(Contact contact) {
1192		databaseBackend.updateContact(contact);
1193		replaceContactInConversation(contact.getJid(), contact);
1194	}
1195
1196	public void updateMessage(Message message) {
1197		databaseBackend.updateMessage(message);
1198	}
1199
1200	public void createContact(Contact contact) {
1201		SharedPreferences sharedPref = getPreferences();
1202		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1203		if (autoGrant) {
1204			contact.setSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
1205			contact.setSubscriptionOption(Contact.Subscription.ASKING);
1206		}
1207		databaseBackend.createContact(contact);
1208		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1209		Element query = new Element("query");
1210		query.setAttribute("xmlns", "jabber:iq:roster");
1211		Element item = new Element("item");
1212		item.setAttribute("jid", contact.getJid());
1213		item.setAttribute("name", contact.getJid());
1214		query.addChild(item);
1215		iq.addChild(query);
1216		Account account = contact.getAccount();
1217		account.getXmppConnection().sendIqPacket(iq, null);
1218		if (autoGrant) {
1219			requestPresenceUpdatesFrom(contact);
1220		}
1221		replaceContactInConversation(contact.getJid(), contact);
1222	}
1223
1224	public void requestPresenceUpdatesFrom(Contact contact) {
1225		// Requesting a Subscription type=subscribe
1226		PresencePacket packet = new PresencePacket();
1227		packet.setAttribute("type", "subscribe");
1228		packet.setAttribute("to", contact.getJid());
1229		packet.setAttribute("from", contact.getAccount().getJid());
1230		Log.d(LOGTAG, packet.toString());
1231		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1232	}
1233
1234	public void stopPresenceUpdatesFrom(Contact contact) {
1235		// Unsubscribing type='unsubscribe'
1236		PresencePacket packet = new PresencePacket();
1237		packet.setAttribute("type", "unsubscribe");
1238		packet.setAttribute("to", contact.getJid());
1239		packet.setAttribute("from", contact.getAccount().getJid());
1240		Log.d(LOGTAG, packet.toString());
1241		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1242	}
1243
1244	public void stopPresenceUpdatesTo(Contact contact) {
1245		// Canceling a Subscription type=unsubscribed
1246		PresencePacket packet = new PresencePacket();
1247		packet.setAttribute("type", "unsubscribed");
1248		packet.setAttribute("to", contact.getJid());
1249		packet.setAttribute("from", contact.getAccount().getJid());
1250		Log.d(LOGTAG, packet.toString());
1251		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1252	}
1253
1254	public void sendPresenceUpdatesTo(Contact contact) {
1255		// type='subscribed'
1256		PresencePacket packet = new PresencePacket();
1257		packet.setAttribute("type", "subscribed");
1258		packet.setAttribute("to", contact.getJid());
1259		packet.setAttribute("from", contact.getAccount().getJid());
1260		Log.d(LOGTAG, packet.toString());
1261		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1262	}
1263
1264	public void sendPgpPresence(Account account, String signature) {
1265		PresencePacket packet = new PresencePacket();
1266		packet.setAttribute("from", account.getFullJid());
1267		Element status = new Element("status");
1268		status.setContent("online");
1269		packet.addChild(status);
1270		Element x = new Element("x");
1271		x.setAttribute("xmlns", "jabber:x:signed");
1272		x.setContent(signature);
1273		packet.addChild(x);
1274		account.getXmppConnection().sendPresencePacket(packet);
1275	}
1276
1277	public void generatePgpAnnouncement(Account account)
1278			throws PgpEngine.UserInputRequiredException {
1279		if (account.getStatus() == Account.STATUS_ONLINE) {
1280			String signature = getPgpEngine().generateSignature("online");
1281			account.setKey("pgp_signature", signature);
1282			databaseBackend.updateAccount(account);
1283			sendPgpPresence(account, signature);
1284		}
1285	}
1286
1287	public void updateConversation(Conversation conversation) {
1288		this.databaseBackend.updateConversation(conversation);
1289	}
1290
1291	public Contact findContact(String uuid) {
1292		Contact contact = this.databaseBackend.getContact(uuid);
1293		if (contact!=null) {
1294			for (Account account : getAccounts()) {
1295				if (contact.getAccountUuid().equals(account.getUuid())) {
1296					contact.setAccount(account);
1297				}
1298			}
1299		}
1300		return contact;
1301	}
1302
1303	public void removeOnTLSExceptionReceivedListener() {
1304		this.tlsException = null;
1305	}
1306
1307	// TODO dont let thread sleep but schedule wake up
1308	public void reconnectAccount(final Account account, final boolean force) {
1309		new Thread(new Runnable() {
1310
1311			@Override
1312			public void run() {
1313				if (account.getXmppConnection() != null) {
1314					disconnect(account, force);
1315				}
1316				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1317					if (account.getXmppConnection() == null) {
1318						account.setXmppConnection(createConnection(account));
1319					}
1320					Thread thread = new Thread(account.getXmppConnection());
1321					thread.start();
1322					scheduleWakeupCall((int) (CONNECT_TIMEOUT * 1.2), false);
1323				}
1324			}
1325		}).start();
1326	}
1327
1328	public void updateConversationInGui() {
1329		if (convChangedListener != null) {
1330			convChangedListener.onConversationListChanged();
1331		}
1332	}
1333
1334	public void sendConversationSubject(Conversation conversation,
1335			String subject) {
1336		MessagePacket packet = new MessagePacket();
1337		packet.setType(MessagePacket.TYPE_GROUPCHAT);
1338		packet.setTo(conversation.getContactJid().split("/")[0]);
1339		Element subjectChild = new Element("subject");
1340		subjectChild.setContent(subject);
1341		packet.addChild(subjectChild);
1342		packet.setFrom(conversation.getAccount().getJid());
1343		Account account = conversation.getAccount();
1344		if (account.getStatus() == Account.STATUS_ONLINE) {
1345			account.getXmppConnection().sendMessagePacket(packet);
1346		}
1347	}
1348
1349	public void inviteToConference(Conversation conversation,
1350			List<Contact> contacts) {
1351		for (Contact contact : contacts) {
1352			MessagePacket packet = new MessagePacket();
1353			packet.setTo(conversation.getContactJid().split("/")[0]);
1354			packet.setFrom(conversation.getAccount().getFullJid());
1355			Element x = new Element("x");
1356			x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
1357			Element invite = new Element("invite");
1358			invite.setAttribute("to", contact.getJid());
1359			x.addChild(invite);
1360			packet.addChild(x);
1361			Log.d(LOGTAG, packet.toString());
1362			conversation.getAccount().getXmppConnection()
1363					.sendMessagePacket(packet);
1364		}
1365
1366	}
1367	
1368	public boolean markMessage(Account account, String recipient, String uuid, int status) {
1369		boolean marked = false;
1370		for(Conversation conversation : getConversations()) {
1371			if (conversation.getContactJid().equals(recipient)&&conversation.getAccount().equals(account)) {
1372				for(Message message : conversation.getMessages()) {
1373					if (message.getUuid().equals(uuid)) {
1374						markMessage(message, status);
1375						marked = true;
1376						break;
1377					}
1378				}
1379				break;
1380			}
1381		}
1382		return marked;
1383	}
1384	
1385	public void markMessage(Message message, int status) {
1386		message.setStatus(status);
1387		databaseBackend.updateMessage(message);
1388		if (convChangedListener!=null) {
1389			convChangedListener.onConversationListChanged();
1390		}
1391	}
1392	
1393	public SharedPreferences getPreferences() {
1394		return PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
1395	}
1396}