XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import java.text.ParseException;
   4import java.text.SimpleDateFormat;
   5import java.util.Collections;
   6import java.util.Comparator;
   7import java.util.Date;
   8import java.util.Hashtable;
   9import java.util.List;
  10import java.util.Locale;
  11import java.util.Random;
  12
  13import org.openintents.openpgp.OpenPgpError;
  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.OnPgpEngineResult;
  22import eu.siacs.conversations.crypto.PgpEngine;
  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(
  93			this);
  94
  95	public OnConversationListChangedListener convChangedListener = null;
  96	private int convChangedListenerCount = 0;
  97	private OnAccountListChangedListener accountChangedListener = null;
  98	private OnTLSExceptionReceived tlsException = null;
  99
 100	public void setOnTLSExceptionReceivedListener(
 101			OnTLSExceptionReceived listener) {
 102		tlsException = listener;
 103	}
 104
 105	private Random mRandom = new Random(System.currentTimeMillis());
 106
 107	private long lastCarbonMessageReceived = -CARBON_GRACE_PERIOD;
 108
 109	private ContentObserver contactObserver = new ContentObserver(null) {
 110		@Override
 111		public void onChange(boolean selfChange) {
 112			super.onChange(selfChange);
 113			Log.d(LOGTAG, "contact list has changed");
 114			mergePhoneContactsWithRoster(null);
 115		}
 116	};
 117
 118	private XmppConnectionService service = this;
 119
 120	private final IBinder mBinder = new XmppConnectionBinder();
 121	private OnMessagePacketReceived messageListener = new OnMessagePacketReceived() {
 122
 123		@Override
 124		public void onMessagePacketReceived(Account account,
 125				MessagePacket packet) {
 126			Message message = null;
 127			boolean notify = true;
 128			if (getPreferences().getBoolean(
 129					"notification_grace_period_after_carbon_received", true)) {
 130				notify = (SystemClock.elapsedRealtime() - lastCarbonMessageReceived) > CARBON_GRACE_PERIOD;
 131			}
 132
 133			if ((packet.getType() == MessagePacket.TYPE_CHAT)) {
 134				String pgpBody = MessageParser.getPgpBody(packet);
 135				if (pgpBody != null) {
 136					message = MessageParser.parsePgpChat(pgpBody, packet,
 137							account, service);
 138					message.markUnread();
 139				} else if ((packet.getBody() != null)
 140						&& (packet.getBody().startsWith("?OTR"))) {
 141					message = MessageParser.parseOtrChat(packet, account,
 142							service);
 143					if (message != null) {
 144						message.markUnread();
 145					}
 146				} else if (packet.hasChild("body")) {
 147					message = MessageParser.parsePlainTextChat(packet, account,
 148							service);
 149					message.markUnread();
 150				} else if (packet.hasChild("received")
 151						|| (packet.hasChild("sent"))) {
 152					message = MessageParser.parseCarbonMessage(packet, account,
 153							service);
 154					if (message != null) {
 155						if (message.getStatus() == Message.STATUS_SEND) {
 156							lastCarbonMessageReceived = SystemClock
 157									.elapsedRealtime();
 158							notify = false;
 159							message.getConversation().markRead();
 160						} else {
 161							message.markUnread();
 162						}
 163					}
 164				}
 165
 166			} else if (packet.getType() == MessagePacket.TYPE_GROUPCHAT) {
 167				message = MessageParser
 168						.parseGroupchat(packet, account, service);
 169				if (message != null) {
 170					if (message.getStatus() == Message.STATUS_RECIEVED) {
 171						message.markUnread();
 172					} else {
 173						message.getConversation().markRead();
 174						notify = false;
 175					}
 176				}
 177			} else if (packet.getType() == MessagePacket.TYPE_ERROR) {
 178				MessageParser.parseError(packet, account, service);
 179				return;
 180			} else if (packet.getType() == MessagePacket.TYPE_NORMAL) {
 181				if (packet.hasChild("x")) {
 182					Element x = packet.findChild("x");
 183					if (x.hasChild("invite")) {
 184						findOrCreateConversation(account, packet.getFrom(),
 185								true);
 186						if (convChangedListener != null) {
 187							convChangedListener.onConversationListChanged();
 188						}
 189						Log.d(LOGTAG,
 190								"invitation received to " + packet.getFrom());
 191					}
 192
 193				} else {
 194					// Log.d(LOGTAG, "unparsed message " + packet.toString());
 195				}
 196			}
 197			if ((message == null) || (message.getBody() == null)) {
 198				return;
 199			}
 200			if (packet.hasChild("delay")) {
 201				try {
 202					String stamp = packet.findChild("delay").getAttribute(
 203							"stamp");
 204					stamp = stamp.replace("Z", "+0000");
 205					Date date = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ")
 206							.parse(stamp);
 207					message.setTime(date.getTime());
 208				} catch (ParseException e) {
 209					Log.d(LOGTAG, "error trying to parse date" + e.getMessage());
 210				}
 211			}
 212			Conversation conversation = message.getConversation();
 213			conversation.getMessages().add(message);
 214			if (packet.getType() != MessagePacket.TYPE_ERROR) {
 215				databaseBackend.createMessage(message);
 216			}
 217			if (convChangedListener != null) {
 218				convChangedListener.onConversationListChanged();
 219			} else {
 220				UIHelper.updateNotification(getApplicationContext(),
 221						getConversations(), message.getConversation(), notify);
 222			}
 223		}
 224	};
 225	private OnStatusChanged statusListener = new OnStatusChanged() {
 226
 227		@Override
 228		public void onStatusChanged(Account account) {
 229			if (accountChangedListener != null) {
 230				accountChangedListener.onAccountListChangedListener();
 231			}
 232			if (account.getStatus() == Account.STATUS_ONLINE) {
 233				List<Conversation> conversations = getConversations();
 234				for (int i = 0; i < conversations.size(); ++i) {
 235					if (conversations.get(i).getAccount() == account) {
 236						sendUnsendMessages(conversations.get(i));
 237					}
 238				}
 239				scheduleWakeupCall(PING_MAX_INTERVAL, true);
 240			} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 241				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 242					int timeToReconnect = mRandom.nextInt(50) + 10;
 243					scheduleWakeupCall(timeToReconnect, false);
 244				}
 245
 246			} else if (account.getStatus() == Account.STATUS_REGISTRATION_SUCCESSFULL) {
 247				databaseBackend.updateAccount(account);
 248				reconnectAccount(account, true);
 249			} else {
 250				UIHelper.showErrorNotification(getApplicationContext(),
 251						getAccounts());
 252			}
 253		}
 254	};
 255
 256	private OnPresencePacketReceived presenceListener = new OnPresencePacketReceived() {
 257
 258		@Override
 259		public void onPresencePacketReceived(final Account account,
 260				PresencePacket packet) {
 261			if (packet.hasChild("x", "http://jabber.org/protocol/muc#user")) {
 262				Conversation muc = findMuc(
 263						packet.getAttribute("from").split("/")[0], account);
 264				if (muc != null) {
 265					muc.getMucOptions().processPacket(packet);
 266				} else {
 267					Log.d(LOGTAG, account.getJid()
 268							+ ": could not find muc for received muc package "
 269							+ packet.toString());
 270				}
 271			} else if (packet.hasChild("x", "http://jabber.org/protocol/muc")) {
 272				Conversation muc = findMuc(
 273						packet.getAttribute("from").split("/")[0], account);
 274				if (muc != null) {
 275					Log.d(LOGTAG,
 276							account.getJid() + ": reading muc status packet "
 277									+ packet.toString());
 278					int error = muc.getMucOptions().getError();
 279					muc.getMucOptions().processPacket(packet);
 280					if ((muc.getMucOptions().getError() != error)
 281							&& (convChangedListener != null)) {
 282						Log.d(LOGTAG, "muc error status changed");
 283						convChangedListener.onConversationListChanged();
 284					}
 285				}
 286			} else {
 287				String[] fromParts = packet.getAttribute("from").split("/");
 288				String type = packet.getAttribute("type");
 289				if (fromParts[0].equals(account.getJid())) {
 290					if (fromParts.length == 2) {
 291						if (type == null) {
 292							account.updatePresence(fromParts[1], Presences
 293									.parseShow(packet.findChild("show")));
 294						} else if (type.equals("unavailable")) {
 295							account.removePresence(fromParts[1]);
 296						}
 297					}
 298
 299				} else {
 300					Contact contact = findContact(account, fromParts[0]);
 301					if (contact == null) {
 302						if ("subscribe".equals(type)) {
 303							account.getXmppConnection().addPendingSubscription(
 304									fromParts[0]);
 305						} else {
 306							// Log.d(LOGTAG,packet.getFrom()+
 307							// " could not be found");
 308						}
 309						return;
 310					}
 311					if (type == null) {
 312						if (fromParts.length == 2) {
 313							contact.updatePresence(fromParts[1], Presences
 314									.parseShow(packet.findChild("show")));
 315							PgpEngine pgp = getPgpEngine();
 316							if (pgp != null) {
 317								Element x = packet.findChild("x",
 318										"jabber:x:signed");
 319								if (x != null) {
 320									Element status = packet.findChild("status");
 321									String msg;
 322									if (status != null) {
 323										msg = status.getContent();
 324									} else {
 325										msg = "";
 326									}
 327									contact.setPgpKeyId(pgp.fetchKeyId(account,msg,x.getContent()));
 328									Log.d("xmppService","fetched key id for "+contact.getDisplayName()+" was:"+contact.getPgpKeyId());
 329								}
 330							}
 331							replaceContactInConversation(account,
 332									contact.getJid(), contact);
 333								databaseBackend.updateContact(contact, true);
 334						} else {
 335							// Log.d(LOGTAG,"presence without resource "+packet.toString());
 336						}
 337					} else if (type.equals("unavailable")) {
 338						if (fromParts.length != 2) {
 339							contact.clearPresences();
 340						} else {
 341							contact.removePresence(fromParts[1]);
 342						}
 343						replaceContactInConversation(account, contact.getJid(),
 344								contact);
 345						databaseBackend.updateContact(contact, true);
 346					} else if (type.equals("subscribe")) {
 347						Log.d(LOGTAG, "received subscribe packet from "
 348								+ packet.getFrom());
 349						if (contact
 350								.getSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT)) {
 351							Log.d(LOGTAG, "preemptive grant; granting");
 352							sendPresenceUpdatesTo(contact);
 353							contact.setSubscriptionOption(Contact.Subscription.FROM);
 354							contact.resetSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
 355							replaceContactInConversation(account,
 356									contact.getJid(), contact);
 357							databaseBackend.updateContact(contact, false);
 358							if ((contact
 359									.getSubscriptionOption(Contact.Subscription.ASKING))
 360									&& (!contact
 361											.getSubscriptionOption(Contact.Subscription.TO))) {
 362								requestPresenceUpdatesFrom(contact);
 363							}
 364						} else {
 365							account.getXmppConnection().addPendingSubscription(
 366									fromParts[0]);
 367						}
 368					} else {
 369						// Log.d(LOGTAG, packet.toString());
 370					}
 371				}
 372			}
 373		}
 374	};
 375
 376	private OnIqPacketReceived unknownIqListener = new OnIqPacketReceived() {
 377
 378		@Override
 379		public void onIqPacketReceived(Account account, IqPacket packet) {
 380			if (packet.hasChild("query")) {
 381				Element query = packet.findChild("query");
 382				String xmlns = query.getAttribute("xmlns");
 383				if ((xmlns != null) && (xmlns.equals("jabber:iq:roster"))) {
 384					processRosterItems(account, query);
 385					mergePhoneContactsWithRoster(null);
 386				}
 387			} else if (packet
 388					.hasChild("open", "http://jabber.org/protocol/ibb")
 389					|| packet
 390							.hasChild("data", "http://jabber.org/protocol/ibb")) {
 391				XmppConnectionService.this.mJingleConnectionManager
 392						.deliverIbbPacket(account, packet);
 393			} else {
 394				Log.d(LOGTAG, "iq packet arrived " + packet.toString());
 395			}
 396		}
 397	};
 398
 399	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 400
 401		@Override
 402		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 403			mJingleConnectionManager.deliverPacket(account, packet);
 404		}
 405	};
 406
 407	private OpenPgpServiceConnection pgpServiceConnection;
 408	private PgpEngine mPgpEngine = null;
 409	private Intent pingIntent;
 410	private PendingIntent pendingPingIntent = null;
 411	private WakeLock wakeLock;
 412	private PowerManager pm;
 413
 414	public PgpEngine getPgpEngine() {
 415		if (pgpServiceConnection.isBound()) {
 416			if (this.mPgpEngine == null) {
 417				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 418						getApplicationContext(),
 419						pgpServiceConnection.getService()));
 420			}
 421			return mPgpEngine;
 422		} else {
 423			return null;
 424		}
 425
 426	}
 427
 428	public FileBackend getFileBackend() {
 429		return this.fileBackend;
 430	}
 431
 432	public void attachImageToConversation(final Conversation conversation,
 433			final String presence, final Uri uri) {
 434		new Thread(new Runnable() {
 435
 436			@Override
 437			public void run() {
 438				Message message = new Message(conversation, "",
 439						Message.ENCRYPTION_NONE);
 440				message.setPresence(presence);
 441				message.setType(Message.TYPE_IMAGE);
 442				message.setStatus(Message.STATUS_PREPARING);
 443				conversation.getMessages().add(message);
 444				if (convChangedListener != null) {
 445					convChangedListener.onConversationListChanged();
 446				}
 447				getFileBackend().copyImageToPrivateStorage(message, uri);
 448				message.setStatus(Message.STATUS_OFFERED);
 449				databaseBackend.createMessage(message);
 450				if (convChangedListener != null) {
 451					convChangedListener.onConversationListChanged();
 452				}
 453				sendMessage(message, null);
 454			}
 455		}).start();
 456	}
 457
 458	protected Conversation findMuc(String name, Account account) {
 459		for (Conversation conversation : this.conversations) {
 460			if (conversation.getContactJid().split("/")[0].equals(name)
 461					&& (conversation.getAccount() == account)) {
 462				return conversation;
 463			}
 464		}
 465		return null;
 466	}
 467
 468	private void processRosterItems(Account account, Element elements) {
 469		String version = elements.getAttribute("ver");
 470		if (version != null) {
 471			account.setRosterVersion(version);
 472			databaseBackend.updateAccount(account);
 473		}
 474		for (Element item : elements.getChildren()) {
 475			if (item.getName().equals("item")) {
 476				String jid = item.getAttribute("jid");
 477				String subscription = item.getAttribute("subscription");
 478				Contact contact = databaseBackend.findContact(account, jid);
 479				if (contact == null) {
 480					if (!subscription.equals("remove")) {
 481						String name = item.getAttribute("name");
 482						if (name == null) {
 483							name = jid.split("@")[0];
 484						}
 485						contact = new Contact(account, name, jid, null);
 486						contact.parseSubscriptionFromElement(item);
 487						databaseBackend.createContact(contact);
 488					}
 489				} else {
 490					if (subscription.equals("remove")) {
 491						databaseBackend.deleteContact(contact);
 492						replaceContactInConversation(account, contact.getJid(),
 493								null);
 494					} else {
 495						contact.parseSubscriptionFromElement(item);
 496						databaseBackend.updateContact(contact, false);
 497						replaceContactInConversation(account, contact.getJid(),
 498								contact);
 499					}
 500				}
 501			}
 502		}
 503	}
 504
 505	private void replaceContactInConversation(Account account, String jid,
 506			Contact contact) {
 507		List<Conversation> conversations = getConversations();
 508		for (Conversation c : conversations) {
 509			if (c.getContactJid().equals(jid) && (c.getAccount() == account)) {
 510				c.setContact(contact);
 511				break;
 512			}
 513		}
 514	}
 515
 516	public class XmppConnectionBinder extends Binder {
 517		public XmppConnectionService getService() {
 518			return XmppConnectionService.this;
 519		}
 520	}
 521
 522	@Override
 523	public int onStartCommand(Intent intent, int flags, int startId) {
 524		this.wakeLock.acquire();
 525		// Log.d(LOGTAG,"calling start service. caller was:"+intent.getAction());
 526		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 527				.getSystemService(Context.CONNECTIVITY_SERVICE);
 528		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 529		boolean isConnected = activeNetwork != null
 530				&& activeNetwork.isConnected();
 531
 532		for (Account account : accounts) {
 533			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 534				if (!isConnected) {
 535					account.setStatus(Account.STATUS_NO_INTERNET);
 536					if (statusListener != null) {
 537						statusListener.onStatusChanged(account);
 538					}
 539				} else {
 540					if (account.getStatus() == Account.STATUS_NO_INTERNET) {
 541						account.setStatus(Account.STATUS_OFFLINE);
 542						if (statusListener != null) {
 543							statusListener.onStatusChanged(account);
 544						}
 545					}
 546
 547					// TODO 3 remaining cases
 548					if (account.getStatus() == Account.STATUS_ONLINE) {
 549						long lastReceived = account.getXmppConnection().lastPaketReceived;
 550						long lastSent = account.getXmppConnection().lastPingSent;
 551						if (lastSent - lastReceived >= PING_TIMEOUT * 1000) {
 552							Log.d(LOGTAG, account.getJid() + ": ping timeout");
 553							this.reconnectAccount(account, true);
 554						} else if (SystemClock.elapsedRealtime() - lastReceived >= PING_MIN_INTERVAL * 1000) {
 555							account.getXmppConnection().sendPing();
 556							account.getXmppConnection().lastPingSent = SystemClock
 557									.elapsedRealtime();
 558							this.scheduleWakeupCall(2, false);
 559						}
 560					} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 561						if (account.getXmppConnection() == null) {
 562							account.setXmppConnection(this
 563									.createConnection(account));
 564						}
 565						account.getXmppConnection().lastPingSent = SystemClock
 566								.elapsedRealtime();
 567						new Thread(account.getXmppConnection()).start();
 568					} else if ((account.getStatus() == Account.STATUS_CONNECTING)
 569							&& ((SystemClock.elapsedRealtime() - account
 570									.getXmppConnection().lastConnect) / 1000 >= CONNECT_TIMEOUT)) {
 571						Log.d(LOGTAG, account.getJid()
 572								+ ": time out during connect reconnecting");
 573						reconnectAccount(account, true);
 574					} else {
 575						Log.d(LOGTAG,
 576								"seconds since last connect:"
 577										+ ((SystemClock.elapsedRealtime() - account
 578												.getXmppConnection().lastConnect) / 1000));
 579						Log.d(LOGTAG,
 580								account.getJid() + ": status="
 581										+ account.getStatus());
 582						// TODO notify user of ssl cert problem or auth problem
 583						// or what ever
 584					}
 585					// in any case. reschedule wakup call
 586					this.scheduleWakeupCall(PING_MAX_INTERVAL, true);
 587				}
 588				if (accountChangedListener != null) {
 589					accountChangedListener.onAccountListChangedListener();
 590				}
 591			}
 592		}
 593		if (wakeLock.isHeld()) {
 594			wakeLock.release();
 595		}
 596		return START_STICKY;
 597	}
 598
 599	@Override
 600	public void onCreate() {
 601		ExceptionHelper.init(getApplicationContext());
 602		this.databaseBackend = DatabaseBackend
 603				.getInstance(getApplicationContext());
 604		this.fileBackend = new FileBackend(getApplicationContext());
 605		this.accounts = databaseBackend.getAccounts();
 606
 607		this.getConversations();
 608
 609		getContentResolver().registerContentObserver(
 610				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 611		this.pgpServiceConnection = new OpenPgpServiceConnection(
 612				getApplicationContext(), "org.sufficientlysecure.keychain");
 613		this.pgpServiceConnection.bindToService();
 614
 615		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 616		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
 617				"XmppConnectionService");
 618	}
 619
 620	@Override
 621	public void onDestroy() {
 622		super.onDestroy();
 623		for (Account account : accounts) {
 624			if (account.getXmppConnection() != null) {
 625				disconnect(account, true);
 626			}
 627		}
 628	}
 629
 630	protected void scheduleWakeupCall(int seconds, boolean ping) {
 631		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 632		Context context = getApplicationContext();
 633		AlarmManager alarmManager = (AlarmManager) context
 634				.getSystemService(Context.ALARM_SERVICE);
 635
 636		if (ping) {
 637			if (this.pingIntent == null) {
 638				this.pingIntent = new Intent(context, EventReceiver.class);
 639				this.pingIntent.setAction("ping");
 640				this.pingIntent.putExtra("time", timeToWake);
 641				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 642						this.pingIntent, 0);
 643				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 644						timeToWake, pendingPingIntent);
 645				// Log.d(LOGTAG,"schedule ping in "+seconds+" seconds");
 646			} else {
 647				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
 648				if (scheduledTime < SystemClock.elapsedRealtime()
 649						|| (scheduledTime > timeToWake)) {
 650					this.pingIntent.putExtra("time", timeToWake);
 651					alarmManager.cancel(this.pendingPingIntent);
 652					this.pendingPingIntent = PendingIntent.getBroadcast(
 653							context, 0, this.pingIntent, 0);
 654					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 655							timeToWake, pendingPingIntent);
 656					// Log.d(LOGTAG,"reschedule old ping to ping in "+seconds+" seconds");
 657				}
 658			}
 659		} else {
 660			Intent intent = new Intent(context, EventReceiver.class);
 661			intent.setAction("ping_check");
 662			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 663					intent, 0);
 664			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 665					alarmIntent);
 666		}
 667
 668	}
 669
 670	public XmppConnection createConnection(Account account) {
 671		SharedPreferences sharedPref = getPreferences();
 672		account.setResource(sharedPref.getString("resource", "mobile")
 673				.toLowerCase(Locale.getDefault()));
 674		XmppConnection connection = new XmppConnection(account, this.pm);
 675		connection.setOnMessagePacketReceivedListener(this.messageListener);
 676		connection.setOnStatusChangedListener(this.statusListener);
 677		connection.setOnPresencePacketReceivedListener(this.presenceListener);
 678		connection
 679				.setOnUnregisteredIqPacketReceivedListener(this.unknownIqListener);
 680		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 681		connection
 682				.setOnTLSExceptionReceivedListener(new OnTLSExceptionReceived() {
 683
 684					@Override
 685					public void onTLSExceptionReceived(String fingerprint,
 686							Account account) {
 687						Log.d(LOGTAG, "tls exception arrived in service");
 688						if (tlsException != null) {
 689							tlsException.onTLSExceptionReceived(fingerprint,
 690									account);
 691						}
 692					}
 693				});
 694		connection.setOnBindListener(new OnBindListener() {
 695
 696			@Override
 697			public void onBind(Account account) {
 698				databaseBackend.clearPresences(account);
 699				account.clearPresences(); // self presences
 700				if (account.getXmppConnection().hasFeatureRosterManagment()) {
 701					updateRoster(account, null);
 702				}
 703				connectMultiModeConversations(account);
 704				if (convChangedListener != null) {
 705					convChangedListener.onConversationListChanged();
 706				}
 707			}
 708		});
 709		return connection;
 710	}
 711
 712	synchronized public void sendMessage(Message message, String presence) {
 713		Account account = message.getConversation().getAccount();
 714		Conversation conv = message.getConversation();
 715		MessagePacket packet = null;
 716		boolean saveInDb = false;
 717		boolean addToConversation = false;
 718		boolean send = false;
 719		if (account.getStatus() == Account.STATUS_ONLINE) {
 720			if (message.getType() == Message.TYPE_IMAGE) {
 721				mJingleConnectionManager.createNewConnection(message);
 722			} else {
 723				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 724					if (!conv.hasValidOtrSession()) {
 725						// starting otr session. messages will be send later
 726						conv.startOtrSession(getApplicationContext(), presence,
 727								true);
 728					} else if (conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 729						// otr session aleary exists, creating message packet
 730						// accordingly
 731						packet = prepareMessagePacket(account, message,
 732								conv.getOtrSession());
 733						send = true;
 734						message.setStatus(Message.STATUS_SEND);
 735					}
 736					saveInDb = true;
 737					addToConversation = true;
 738				} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 739					message.getConversation().endOtrIfNeeded();
 740					long keyId = message.getConversation().getContact()
 741							.getPgpKeyId();
 742					packet = new MessagePacket();
 743					packet.setType(MessagePacket.TYPE_CHAT);
 744					packet.setFrom(message.getConversation().getAccount()
 745							.getFullJid());
 746					packet.setTo(message.getCounterpart());
 747					packet.setBody("This is an XEP-0027 encryted message");
 748					packet.addChild("x", "jabber:x:encrypted").setContent(
 749							message.getEncryptedBody());
 750					message.setStatus(Message.STATUS_SEND);
 751					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 752					saveInDb = true;
 753					addToConversation = true;
 754					send = true;
 755				} else {
 756					message.getConversation().endOtrIfNeeded();
 757					// don't encrypt
 758					if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 759						message.setStatus(Message.STATUS_SEND);
 760						saveInDb = true;
 761						addToConversation = true;
 762					}
 763					packet = prepareMessagePacket(account, message, null);
 764					send = true;
 765				}
 766			}
 767		} else {
 768			// account is offline
 769			saveInDb = true;
 770			addToConversation = true;
 771
 772		}
 773		if (saveInDb) {
 774			databaseBackend.createMessage(message);
 775		}
 776		if (addToConversation) {
 777			conv.getMessages().add(message);
 778			if (convChangedListener != null) {
 779				convChangedListener.onConversationListChanged();
 780			}
 781		}
 782		if ((send) && (packet != null)) {
 783			account.getXmppConnection().sendMessagePacket(packet);
 784		}
 785
 786	}
 787
 788	private void sendUnsendMessages(Conversation conversation) {
 789		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 790			if ((conversation.getMessages().get(i).getStatus() == Message.STATUS_UNSEND)
 791					&& (conversation.getMessages().get(i).getEncryption() == Message.ENCRYPTION_NONE)) {
 792				Message message = conversation.getMessages().get(i);
 793				MessagePacket packet = prepareMessagePacket(
 794						conversation.getAccount(), message, null);
 795				conversation.getAccount().getXmppConnection()
 796						.sendMessagePacket(packet);
 797				message.setStatus(Message.STATUS_SEND);
 798				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 799					databaseBackend.updateMessage(message);
 800				} else {
 801					databaseBackend.deleteMessage(message);
 802					conversation.getMessages().remove(i);
 803					i--;
 804				}
 805			}
 806		}
 807	}
 808
 809	public MessagePacket prepareMessagePacket(Account account, Message message,
 810			Session otrSession) {
 811		MessagePacket packet = new MessagePacket();
 812		if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 813			packet.setType(MessagePacket.TYPE_CHAT);
 814			if (otrSession != null) {
 815				try {
 816					packet.setBody(otrSession.transformSending(message
 817							.getBody()));
 818				} catch (OtrException e) {
 819					Log.d(LOGTAG,
 820							account.getJid()
 821									+ ": could not encrypt message to "
 822									+ message.getCounterpart());
 823				}
 824				packet.addChild("private", "urn:xmpp:carbons:2");
 825				packet.addChild("no-copy", "urn:xmpp:hints");
 826				packet.setTo(otrSession.getSessionID().getAccountID() + "/"
 827						+ otrSession.getSessionID().getUserID());
 828				packet.setFrom(account.getFullJid());
 829			} else {
 830				packet.setBody(message.getBody());
 831				packet.setTo(message.getCounterpart());
 832				packet.setFrom(account.getJid());
 833			}
 834		} else if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 835			packet.setType(MessagePacket.TYPE_GROUPCHAT);
 836			packet.setBody(message.getBody());
 837			packet.setTo(message.getCounterpart().split("/")[0]);
 838			packet.setFrom(account.getJid());
 839		}
 840		packet.setId(message.getUuid());
 841		return packet;
 842	}
 843
 844	private void getRoster(Account account,
 845			final OnRosterFetchedListener listener) {
 846		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 847		for (int i = 0; i < contacts.size(); ++i) {
 848			contacts.get(i).setAccount(account);
 849		}
 850		if (listener != null) {
 851			listener.onRosterFetched(contacts);
 852		}
 853	}
 854
 855	public List<Contact> getRoster(Account account) {
 856		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 857		for (int i = 0; i < contacts.size(); ++i) {
 858			contacts.get(i).setAccount(account);
 859		}
 860		return contacts;
 861	}
 862
 863	public void updateRoster(final Account account,
 864			final OnRosterFetchedListener listener) {
 865		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 866		if (!"".equals(account.getRosterVersion())) {
 867			Log.d(LOGTAG, account.getJid() + ": fetching roster version "
 868					+ account.getRosterVersion());
 869		} else {
 870			Log.d(LOGTAG, account.getJid() + ": fetching roster");
 871		}
 872		iqPacket.query("jabber:iq:roster").setAttribute("ver",
 873				account.getRosterVersion());
 874		account.getXmppConnection().sendIqPacket(iqPacket,
 875				new OnIqPacketReceived() {
 876
 877					@Override
 878					public void onIqPacketReceived(final Account account,
 879							IqPacket packet) {
 880						Element roster = packet.findChild("query");
 881						if (roster != null) {
 882							Log.d(LOGTAG, account.getJid()
 883									+ ": processing roster");
 884							processRosterItems(account, roster);
 885							StringBuilder mWhere = new StringBuilder();
 886							mWhere.append("jid NOT IN(");
 887							List<Element> items = roster.getChildren();
 888							for (int i = 0; i < items.size(); ++i) {
 889								mWhere.append(DatabaseUtils
 890										.sqlEscapeString(items.get(i)
 891												.getAttribute("jid")));
 892								if (i != items.size() - 1) {
 893									mWhere.append(",");
 894								}
 895							}
 896							mWhere.append(") and accountUuid = \"");
 897							mWhere.append(account.getUuid());
 898							mWhere.append("\"");
 899							List<Contact> contactsToDelete = databaseBackend
 900									.getContacts(mWhere.toString());
 901							for (Contact contact : contactsToDelete) {
 902								databaseBackend.deleteContact(contact);
 903								replaceContactInConversation(account,
 904										contact.getJid(), null);
 905							}
 906
 907						} else {
 908							Log.d(LOGTAG, account.getJid()
 909									+ ": empty roster returend");
 910						}
 911						mergePhoneContactsWithRoster(new OnPhoneContactsMerged() {
 912
 913							@Override
 914							public void phoneContactsMerged() {
 915								if (listener != null) {
 916									getRoster(account, listener);
 917								}
 918							}
 919						});
 920					}
 921				});
 922	}
 923
 924	public void mergePhoneContactsWithRoster(
 925			final OnPhoneContactsMerged listener) {
 926		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 927				new OnPhoneContactsLoadedListener() {
 928					@Override
 929					public void onPhoneContactsLoaded(
 930							Hashtable<String, Bundle> phoneContacts) {
 931						List<Contact> contacts = databaseBackend
 932								.getContactsByAccount(null);
 933						for (int i = 0; i < contacts.size(); ++i) {
 934							Contact contact = contacts.get(i);
 935							if (phoneContacts.containsKey(contact.getJid())) {
 936								Bundle phoneContact = phoneContacts.get(contact
 937										.getJid());
 938								String systemAccount = phoneContact
 939										.getInt("phoneid")
 940										+ "#"
 941										+ phoneContact.getString("lookup");
 942								contact.setSystemAccount(systemAccount);
 943								contact.setPhotoUri(phoneContact
 944										.getString("photouri"));
 945								contact.setDisplayName(phoneContact
 946										.getString("displayname"));
 947								databaseBackend.updateContact(contact, false);
 948								replaceContactInConversation(
 949										contact.getAccount(), contact.getJid(),
 950										contact);
 951							} else {
 952								if ((contact.getSystemAccount() != null)
 953										|| (contact.getProfilePhoto() != null)) {
 954									contact.setSystemAccount(null);
 955									contact.setPhotoUri(null);
 956									databaseBackend.updateContact(contact,
 957											false);
 958									replaceContactInConversation(
 959											contact.getAccount(),
 960											contact.getJid(), contact);
 961								}
 962							}
 963						}
 964						if (listener != null) {
 965							listener.phoneContactsMerged();
 966						}
 967					}
 968				});
 969	}
 970
 971	public List<Conversation> getConversations() {
 972		if (this.conversations == null) {
 973			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
 974			for (Account account : this.accounts) {
 975				accountLookupTable.put(account.getUuid(), account);
 976			}
 977			this.conversations = databaseBackend
 978					.getConversations(Conversation.STATUS_AVAILABLE);
 979			for (Conversation conv : this.conversations) {
 980				Account account = accountLookupTable.get(conv.getAccountUuid());
 981				conv.setAccount(account);
 982				conv.setContact(findContact(account, conv.getContactJid()));
 983				conv.setMessages(databaseBackend.getMessages(conv, 50));
 984			}
 985		}
 986		Collections.sort(this.conversations, new Comparator<Conversation>() {
 987			@Override
 988			public int compare(Conversation lhs, Conversation rhs) {
 989				return (int) (rhs.getLatestMessage().getTimeSent() - lhs
 990						.getLatestMessage().getTimeSent());
 991			}
 992		});
 993		return this.conversations;
 994	}
 995
 996	public List<Account> getAccounts() {
 997		return this.accounts;
 998	}
 999
1000	public Contact findContact(Account account, String jid) {
1001		Contact contact = databaseBackend.findContact(account, jid);
1002		if (contact != null) {
1003			contact.setAccount(account);
1004		}
1005		return contact;
1006	}
1007
1008	public Conversation findOrCreateConversation(Account account, String jid,
1009			boolean muc) {
1010		for (Conversation conv : this.getConversations()) {
1011			if ((conv.getAccount().equals(account))
1012					&& (conv.getContactJid().split("/")[0].equals(jid))) {
1013				return conv;
1014			}
1015		}
1016		Conversation conversation = databaseBackend.findConversation(account,
1017				jid);
1018		if (conversation != null) {
1019			conversation.setStatus(Conversation.STATUS_AVAILABLE);
1020			conversation.setAccount(account);
1021			if (muc) {
1022				conversation.setMode(Conversation.MODE_MULTI);
1023			} else {
1024				conversation.setMode(Conversation.MODE_SINGLE);
1025			}
1026			conversation.setMessages(databaseBackend.getMessages(conversation,
1027					50));
1028			this.databaseBackend.updateConversation(conversation);
1029			conversation.setContact(findContact(account,
1030					conversation.getContactJid()));
1031		} else {
1032			String conversationName;
1033			Contact contact = findContact(account, jid);
1034			if (contact != null) {
1035				conversationName = contact.getDisplayName();
1036			} else {
1037				conversationName = jid.split("@")[0];
1038			}
1039			if (muc) {
1040				conversation = new Conversation(conversationName, account, jid,
1041						Conversation.MODE_MULTI);
1042			} else {
1043				conversation = new Conversation(conversationName, account, jid,
1044						Conversation.MODE_SINGLE);
1045			}
1046			conversation.setContact(contact);
1047			this.databaseBackend.createConversation(conversation);
1048		}
1049		this.conversations.add(conversation);
1050		if ((account.getStatus() == Account.STATUS_ONLINE)
1051				&& (conversation.getMode() == Conversation.MODE_MULTI)) {
1052			joinMuc(conversation);
1053		}
1054		if (this.convChangedListener != null) {
1055			this.convChangedListener.onConversationListChanged();
1056		}
1057		return conversation;
1058	}
1059
1060	public void archiveConversation(Conversation conversation) {
1061		if (conversation.getMode() == Conversation.MODE_MULTI) {
1062			leaveMuc(conversation);
1063		} else {
1064			conversation.endOtrIfNeeded();
1065		}
1066		this.databaseBackend.updateConversation(conversation);
1067		this.conversations.remove(conversation);
1068		if (this.convChangedListener != null) {
1069			this.convChangedListener.onConversationListChanged();
1070		}
1071	}
1072
1073	public void clearConversationHistory(Conversation conversation) {
1074		this.databaseBackend.deleteMessagesInConversation(conversation);
1075		this.fileBackend.removeFiles(conversation);
1076		conversation.getMessages().clear();
1077		if (this.convChangedListener != null) {
1078			this.convChangedListener.onConversationListChanged();
1079		}
1080	}
1081
1082	public int getConversationCount() {
1083		return this.databaseBackend.getConversationCount();
1084	}
1085
1086	public void createAccount(Account account) {
1087		databaseBackend.createAccount(account);
1088		this.accounts.add(account);
1089		this.reconnectAccount(account, false);
1090		if (accountChangedListener != null)
1091			accountChangedListener.onAccountListChangedListener();
1092	}
1093
1094	public void deleteContact(Contact contact) {
1095		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1096		Element query = iq.query("jabber:iq:roster");
1097		query.addChild("item").setAttribute("jid", contact.getJid())
1098				.setAttribute("subscription", "remove");
1099		contact.getAccount().getXmppConnection().sendIqPacket(iq, null);
1100		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1101				null);
1102		databaseBackend.deleteContact(contact);
1103	}
1104
1105	public void updateAccount(Account account) {
1106		this.statusListener.onStatusChanged(account);
1107		databaseBackend.updateAccount(account);
1108		reconnectAccount(account, false);
1109		if (accountChangedListener != null)
1110			accountChangedListener.onAccountListChangedListener();
1111	}
1112
1113	public void deleteAccount(Account account) {
1114		if (account.getXmppConnection() != null) {
1115			this.disconnect(account, true);
1116		}
1117		databaseBackend.deleteAccount(account);
1118		this.accounts.remove(account);
1119		if (accountChangedListener != null)
1120			accountChangedListener.onAccountListChangedListener();
1121	}
1122
1123	public void setOnConversationListChangedListener(
1124			OnConversationListChangedListener listener) {
1125		this.convChangedListener = listener;
1126		this.convChangedListenerCount++;
1127	}
1128
1129	public void removeOnConversationListChangedListener() {
1130		this.convChangedListenerCount--;
1131		if (this.convChangedListenerCount == 0) {
1132			this.convChangedListener = null;
1133		}
1134	}
1135
1136	public void setOnAccountListChangedListener(
1137			OnAccountListChangedListener listener) {
1138		this.accountChangedListener = listener;
1139	}
1140
1141	public void removeOnAccountListChangedListener() {
1142		this.accountChangedListener = null;
1143	}
1144
1145	public void connectMultiModeConversations(Account account) {
1146		List<Conversation> conversations = getConversations();
1147		for (int i = 0; i < conversations.size(); i++) {
1148			Conversation conversation = conversations.get(i);
1149			if ((conversation.getMode() == Conversation.MODE_MULTI)
1150					&& (conversation.getAccount() == account)) {
1151				joinMuc(conversation);
1152			}
1153		}
1154	}
1155
1156	public void joinMuc(Conversation conversation) {
1157		String[] mucParts = conversation.getContactJid().split("/");
1158		String muc;
1159		String nick;
1160		if (mucParts.length == 2) {
1161			muc = mucParts[0];
1162			nick = mucParts[1];
1163		} else {
1164			muc = mucParts[0];
1165			nick = conversation.getAccount().getUsername();
1166		}
1167		PresencePacket packet = new PresencePacket();
1168		packet.setAttribute("to", muc + "/" + nick);
1169		Element x = new Element("x");
1170		x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1171		if (conversation.getMessages().size() != 0) {
1172			long lastMsgTime = conversation.getLatestMessage().getTimeSent();
1173			long diff = (System.currentTimeMillis() - lastMsgTime) / 1000 - 1;
1174			x.addChild("history").setAttribute("seconds", diff + "");
1175		}
1176		packet.addChild(x);
1177		conversation.getAccount().getXmppConnection()
1178				.sendPresencePacket(packet);
1179	}
1180
1181	private OnRenameListener renameListener = null;
1182
1183	public void setOnRenameListener(OnRenameListener listener) {
1184		this.renameListener = listener;
1185	}
1186
1187	public void renameInMuc(final Conversation conversation, final String nick) {
1188		final MucOptions options = conversation.getMucOptions();
1189		if (options.online()) {
1190			options.setOnRenameListener(new OnRenameListener() {
1191
1192				@Override
1193				public void onRename(boolean success) {
1194					if (renameListener != null) {
1195						renameListener.onRename(success);
1196					}
1197					if (success) {
1198						String jid = conversation.getContactJid().split("/")[0] + "/"
1199								+ nick;
1200						conversation.setContactJid(jid);
1201						databaseBackend.updateConversation(conversation);
1202					}
1203				}
1204			});
1205			options.flagAboutToRename();
1206			PresencePacket packet = new PresencePacket();
1207			packet.setAttribute("to",
1208					conversation.getContactJid().split("/")[0] + "/" + nick);
1209			packet.setAttribute("from", conversation.getAccount().getFullJid());
1210
1211			conversation.getAccount().getXmppConnection()
1212					.sendPresencePacket(packet, null);
1213		} else {
1214			String jid = conversation.getContactJid().split("/")[0] + "/"
1215					+ nick;
1216			conversation.setContactJid(jid);
1217			databaseBackend.updateConversation(conversation);
1218			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
1219				joinMuc(conversation);
1220			}
1221		}
1222	}
1223
1224	public void leaveMuc(Conversation conversation) {
1225		PresencePacket packet = new PresencePacket();
1226		packet.setAttribute("to", conversation.getContactJid().split("/")[0]
1227				+ "/" + conversation.getMucOptions().getNick());
1228		packet.setAttribute("from", conversation.getAccount().getFullJid());
1229		packet.setAttribute("type", "unavailable");
1230		Log.d(LOGTAG, "send leaving muc " + packet);
1231		conversation.getAccount().getXmppConnection()
1232				.sendPresencePacket(packet);
1233		conversation.getMucOptions().setOffline();
1234	}
1235
1236	public void disconnect(Account account, boolean force) {
1237		if ((account.getStatus() == Account.STATUS_ONLINE)
1238				|| (account.getStatus() == Account.STATUS_DISABLED)) {
1239			if (!force) {
1240				List<Conversation> conversations = getConversations();
1241				for (int i = 0; i < conversations.size(); i++) {
1242					Conversation conversation = conversations.get(i);
1243					if (conversation.getAccount() == account) {
1244						if (conversation.getMode() == Conversation.MODE_MULTI) {
1245							leaveMuc(conversation);
1246						} else {
1247							conversation.endOtrIfNeeded();
1248						}
1249					}
1250				}
1251			}
1252			account.getXmppConnection().disconnect(force);
1253		}
1254	}
1255
1256	@Override
1257	public IBinder onBind(Intent intent) {
1258		return mBinder;
1259	}
1260
1261	public void updateContact(Contact contact) {
1262		databaseBackend.updateContact(contact, false);
1263		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1264				contact);
1265	}
1266
1267	public void updateMessage(Message message) {
1268		databaseBackend.updateMessage(message);
1269	}
1270
1271	public void createContact(Contact contact) {
1272		SharedPreferences sharedPref = getPreferences();
1273		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1274		if (autoGrant) {
1275			contact.setSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
1276			contact.setSubscriptionOption(Contact.Subscription.ASKING);
1277		}
1278		databaseBackend.createContact(contact);
1279		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1280		Element query = new Element("query");
1281		query.setAttribute("xmlns", "jabber:iq:roster");
1282		Element item = new Element("item");
1283		item.setAttribute("jid", contact.getJid());
1284		item.setAttribute("name", contact.getJid());
1285		query.addChild(item);
1286		iq.addChild(query);
1287		Account account = contact.getAccount();
1288		account.getXmppConnection().sendIqPacket(iq, null);
1289		if (autoGrant) {
1290			requestPresenceUpdatesFrom(contact);
1291			if (account.getXmppConnection().hasPendingSubscription(
1292					contact.getJid())) {
1293				Log.d("xmppService", "contact had pending subscription");
1294				sendPresenceUpdatesTo(contact);
1295			}
1296		}
1297		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1298				contact);
1299	}
1300
1301	public void requestPresenceUpdatesFrom(Contact contact) {
1302		// Requesting a Subscription type=subscribe
1303		PresencePacket packet = new PresencePacket();
1304		packet.setAttribute("type", "subscribe");
1305		packet.setAttribute("to", contact.getJid());
1306		packet.setAttribute("from", contact.getAccount().getJid());
1307		Log.d(LOGTAG, packet.toString());
1308		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1309	}
1310
1311	public void stopPresenceUpdatesFrom(Contact contact) {
1312		// Unsubscribing type='unsubscribe'
1313		PresencePacket packet = new PresencePacket();
1314		packet.setAttribute("type", "unsubscribe");
1315		packet.setAttribute("to", contact.getJid());
1316		packet.setAttribute("from", contact.getAccount().getJid());
1317		Log.d(LOGTAG, packet.toString());
1318		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1319	}
1320
1321	public void stopPresenceUpdatesTo(Contact contact) {
1322		// Canceling a Subscription type=unsubscribed
1323		PresencePacket packet = new PresencePacket();
1324		packet.setAttribute("type", "unsubscribed");
1325		packet.setAttribute("to", contact.getJid());
1326		packet.setAttribute("from", contact.getAccount().getJid());
1327		Log.d(LOGTAG, packet.toString());
1328		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1329	}
1330
1331	public void sendPresenceUpdatesTo(Contact contact) {
1332		// type='subscribed'
1333		PresencePacket packet = new PresencePacket();
1334		packet.setAttribute("type", "subscribed");
1335		packet.setAttribute("to", contact.getJid());
1336		packet.setAttribute("from", contact.getAccount().getJid());
1337		Log.d(LOGTAG, packet.toString());
1338		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1339	}
1340
1341	public void sendPgpPresence(Account account, String signature) {
1342		PresencePacket packet = new PresencePacket();
1343		packet.setAttribute("from", account.getFullJid());
1344		Element status = new Element("status");
1345		status.setContent("online");
1346		packet.addChild(status);
1347		Element x = new Element("x");
1348		x.setAttribute("xmlns", "jabber:x:signed");
1349		x.setContent(signature);
1350		packet.addChild(x);
1351		account.getXmppConnection().sendPresencePacket(packet);
1352	}
1353
1354	public void updateConversation(Conversation conversation) {
1355		this.databaseBackend.updateConversation(conversation);
1356	}
1357
1358	public Contact findContact(String uuid) {
1359		Contact contact = this.databaseBackend.getContact(uuid);
1360		if (contact != null) {
1361			for (Account account : getAccounts()) {
1362				if (contact.getAccountUuid().equals(account.getUuid())) {
1363					contact.setAccount(account);
1364				}
1365			}
1366		}
1367		return contact;
1368	}
1369
1370	public void removeOnTLSExceptionReceivedListener() {
1371		this.tlsException = null;
1372	}
1373
1374	// TODO dont let thread sleep but schedule wake up
1375	public void reconnectAccount(final Account account, final boolean force) {
1376		new Thread(new Runnable() {
1377
1378			@Override
1379			public void run() {
1380				if (account.getXmppConnection() != null) {
1381					disconnect(account, force);
1382				}
1383				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1384					if (account.getXmppConnection() == null) {
1385						account.setXmppConnection(createConnection(account));
1386					}
1387					Thread thread = new Thread(account.getXmppConnection());
1388					thread.start();
1389					scheduleWakeupCall((int) (CONNECT_TIMEOUT * 1.2), false);
1390				}
1391			}
1392		}).start();
1393	}
1394
1395	public void updateConversationInGui() {
1396		if (convChangedListener != null) {
1397			convChangedListener.onConversationListChanged();
1398		}
1399	}
1400
1401	public void sendConversationSubject(Conversation conversation,
1402			String subject) {
1403		MessagePacket packet = new MessagePacket();
1404		packet.setType(MessagePacket.TYPE_GROUPCHAT);
1405		packet.setTo(conversation.getContactJid().split("/")[0]);
1406		Element subjectChild = new Element("subject");
1407		subjectChild.setContent(subject);
1408		packet.addChild(subjectChild);
1409		packet.setFrom(conversation.getAccount().getJid());
1410		Account account = conversation.getAccount();
1411		if (account.getStatus() == Account.STATUS_ONLINE) {
1412			account.getXmppConnection().sendMessagePacket(packet);
1413		}
1414	}
1415
1416	public void inviteToConference(Conversation conversation,
1417			List<Contact> contacts) {
1418		for (Contact contact : contacts) {
1419			MessagePacket packet = new MessagePacket();
1420			packet.setTo(conversation.getContactJid().split("/")[0]);
1421			packet.setFrom(conversation.getAccount().getFullJid());
1422			Element x = new Element("x");
1423			x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
1424			Element invite = new Element("invite");
1425			invite.setAttribute("to", contact.getJid());
1426			x.addChild(invite);
1427			packet.addChild(x);
1428			Log.d(LOGTAG, packet.toString());
1429			conversation.getAccount().getXmppConnection()
1430					.sendMessagePacket(packet);
1431		}
1432
1433	}
1434
1435	public boolean markMessage(Account account, String recipient, String uuid,
1436			int status) {
1437		boolean marked = false;
1438		for (Conversation conversation : getConversations()) {
1439			if (conversation.getContactJid().equals(recipient)
1440					&& conversation.getAccount().equals(account)) {
1441				for (Message message : conversation.getMessages()) {
1442					if (message.getUuid().equals(uuid)) {
1443						markMessage(message, status);
1444						marked = true;
1445						break;
1446					}
1447				}
1448				break;
1449			}
1450		}
1451		return marked;
1452	}
1453
1454	public void markMessage(Message message, int status) {
1455		message.setStatus(status);
1456		databaseBackend.updateMessage(message);
1457		if (convChangedListener != null) {
1458			convChangedListener.onConversationListChanged();
1459		}
1460	}
1461
1462	public SharedPreferences getPreferences() {
1463		return PreferenceManager
1464				.getDefaultSharedPreferences(getApplicationContext());
1465	}
1466}