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","jabber:iq:roster")) {
 381				String from = packet.getFrom();
 382				if ((from==null)||(from.equals(account.getJid()))) {
 383					Element query = packet.findChild("query");
 384					processRosterItems(account, query);
 385					mergePhoneContactsWithRoster(null);
 386				} else {
 387					Log.d(LOGTAG,"unauthorized roster push from: "+from);
 388				}
 389			} else if (packet
 390					.hasChild("open", "http://jabber.org/protocol/ibb")
 391					|| packet
 392							.hasChild("data", "http://jabber.org/protocol/ibb")) {
 393				XmppConnectionService.this.mJingleConnectionManager
 394						.deliverIbbPacket(account, packet);
 395			} else {
 396				Log.d(LOGTAG, "iq packet arrived " + packet.toString());
 397			}
 398		}
 399	};
 400
 401	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 402
 403		@Override
 404		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 405			mJingleConnectionManager.deliverPacket(account, packet);
 406		}
 407	};
 408
 409	private OpenPgpServiceConnection pgpServiceConnection;
 410	private PgpEngine mPgpEngine = null;
 411	private Intent pingIntent;
 412	private PendingIntent pendingPingIntent = null;
 413	private WakeLock wakeLock;
 414	private PowerManager pm;
 415
 416	public PgpEngine getPgpEngine() {
 417		if (pgpServiceConnection.isBound()) {
 418			if (this.mPgpEngine == null) {
 419				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 420						getApplicationContext(),
 421						pgpServiceConnection.getService()));
 422			}
 423			return mPgpEngine;
 424		} else {
 425			return null;
 426		}
 427
 428	}
 429
 430	public FileBackend getFileBackend() {
 431		return this.fileBackend;
 432	}
 433
 434	public void attachImageToConversation(final Conversation conversation,
 435			final String presence, final Uri uri) {
 436		new Thread(new Runnable() {
 437
 438			@Override
 439			public void run() {
 440				Message message = new Message(conversation, "",
 441						Message.ENCRYPTION_NONE);
 442				message.setPresence(presence);
 443				message.setType(Message.TYPE_IMAGE);
 444				message.setStatus(Message.STATUS_PREPARING);
 445				conversation.getMessages().add(message);
 446				if (convChangedListener != null) {
 447					convChangedListener.onConversationListChanged();
 448				}
 449				getFileBackend().copyImageToPrivateStorage(message, uri);
 450				message.setStatus(Message.STATUS_OFFERED);
 451				databaseBackend.createMessage(message);
 452				if (convChangedListener != null) {
 453					convChangedListener.onConversationListChanged();
 454				}
 455				sendMessage(message, null);
 456			}
 457		}).start();
 458	}
 459
 460	protected Conversation findMuc(String name, Account account) {
 461		for (Conversation conversation : this.conversations) {
 462			if (conversation.getContactJid().split("/")[0].equals(name)
 463					&& (conversation.getAccount() == account)) {
 464				return conversation;
 465			}
 466		}
 467		return null;
 468	}
 469
 470	private void processRosterItems(Account account, Element elements) {
 471		String version = elements.getAttribute("ver");
 472		if (version != null) {
 473			account.setRosterVersion(version);
 474			databaseBackend.updateAccount(account);
 475		}
 476		for (Element item : elements.getChildren()) {
 477			if (item.getName().equals("item")) {
 478				String jid = item.getAttribute("jid");
 479				String subscription = item.getAttribute("subscription");
 480				Contact contact = databaseBackend.findContact(account, jid);
 481				if (contact == null) {
 482					if (!subscription.equals("remove")) {
 483						String name = item.getAttribute("name");
 484						if (name == null) {
 485							name = jid.split("@")[0];
 486						}
 487						contact = new Contact(account, name, jid, null);
 488						contact.parseSubscriptionFromElement(item);
 489						databaseBackend.createContact(contact);
 490					}
 491				} else {
 492					if (subscription.equals("remove")) {
 493						databaseBackend.deleteContact(contact);
 494						replaceContactInConversation(account, contact.getJid(),
 495								null);
 496					} else {
 497						contact.parseSubscriptionFromElement(item);
 498						databaseBackend.updateContact(contact, false);
 499						replaceContactInConversation(account, contact.getJid(),
 500								contact);
 501					}
 502				}
 503			}
 504		}
 505	}
 506
 507	private void replaceContactInConversation(Account account, String jid,
 508			Contact contact) {
 509		List<Conversation> conversations = getConversations();
 510		for (Conversation c : conversations) {
 511			if (c.getContactJid().equals(jid) && (c.getAccount() == account)) {
 512				c.setContact(contact);
 513				break;
 514			}
 515		}
 516	}
 517
 518	public class XmppConnectionBinder extends Binder {
 519		public XmppConnectionService getService() {
 520			return XmppConnectionService.this;
 521		}
 522	}
 523
 524	@Override
 525	public int onStartCommand(Intent intent, int flags, int startId) {
 526		this.wakeLock.acquire();
 527		// Log.d(LOGTAG,"calling start service. caller was:"+intent.getAction());
 528		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 529				.getSystemService(Context.CONNECTIVITY_SERVICE);
 530		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 531		boolean isConnected = activeNetwork != null
 532				&& activeNetwork.isConnected();
 533
 534		for (Account account : accounts) {
 535			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 536				if (!isConnected) {
 537					account.setStatus(Account.STATUS_NO_INTERNET);
 538					if (statusListener != null) {
 539						statusListener.onStatusChanged(account);
 540					}
 541				} else {
 542					if (account.getStatus() == Account.STATUS_NO_INTERNET) {
 543						account.setStatus(Account.STATUS_OFFLINE);
 544						if (statusListener != null) {
 545							statusListener.onStatusChanged(account);
 546						}
 547					}
 548
 549					// TODO 3 remaining cases
 550					if (account.getStatus() == Account.STATUS_ONLINE) {
 551						long lastReceived = account.getXmppConnection().lastPaketReceived;
 552						long lastSent = account.getXmppConnection().lastPingSent;
 553						if (lastSent - lastReceived >= PING_TIMEOUT * 1000) {
 554							Log.d(LOGTAG, account.getJid() + ": ping timeout");
 555							this.reconnectAccount(account, true);
 556						} else if (SystemClock.elapsedRealtime() - lastReceived >= PING_MIN_INTERVAL * 1000) {
 557							account.getXmppConnection().sendPing();
 558							account.getXmppConnection().lastPingSent = SystemClock
 559									.elapsedRealtime();
 560							this.scheduleWakeupCall(2, false);
 561						}
 562					} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 563						if (account.getXmppConnection() == null) {
 564							account.setXmppConnection(this
 565									.createConnection(account));
 566						}
 567						account.getXmppConnection().lastPingSent = SystemClock
 568								.elapsedRealtime();
 569						new Thread(account.getXmppConnection()).start();
 570					} else if ((account.getStatus() == Account.STATUS_CONNECTING)
 571							&& ((SystemClock.elapsedRealtime() - account
 572									.getXmppConnection().lastConnect) / 1000 >= CONNECT_TIMEOUT)) {
 573						Log.d(LOGTAG, account.getJid()
 574								+ ": time out during connect reconnecting");
 575						reconnectAccount(account, true);
 576					} else {
 577						Log.d(LOGTAG,
 578								"seconds since last connect:"
 579										+ ((SystemClock.elapsedRealtime() - account
 580												.getXmppConnection().lastConnect) / 1000));
 581						Log.d(LOGTAG,
 582								account.getJid() + ": status="
 583										+ account.getStatus());
 584						// TODO notify user of ssl cert problem or auth problem
 585						// or what ever
 586					}
 587					// in any case. reschedule wakup call
 588					this.scheduleWakeupCall(PING_MAX_INTERVAL, true);
 589				}
 590				if (accountChangedListener != null) {
 591					accountChangedListener.onAccountListChangedListener();
 592				}
 593			}
 594		}
 595		if (wakeLock.isHeld()) {
 596			wakeLock.release();
 597		}
 598		return START_STICKY;
 599	}
 600
 601	@Override
 602	public void onCreate() {
 603		ExceptionHelper.init(getApplicationContext());
 604		this.databaseBackend = DatabaseBackend
 605				.getInstance(getApplicationContext());
 606		this.fileBackend = new FileBackend(getApplicationContext());
 607		this.accounts = databaseBackend.getAccounts();
 608
 609		this.getConversations();
 610
 611		getContentResolver().registerContentObserver(
 612				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 613		this.pgpServiceConnection = new OpenPgpServiceConnection(
 614				getApplicationContext(), "org.sufficientlysecure.keychain");
 615		this.pgpServiceConnection.bindToService();
 616
 617		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 618		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
 619				"XmppConnectionService");
 620	}
 621
 622	@Override
 623	public void onDestroy() {
 624		Log.d(LOGTAG,"stopping service");
 625		super.onDestroy();
 626		for (Account account : accounts) {
 627			if (account.getXmppConnection() != null) {
 628				disconnect(account, true);
 629			}
 630		}
 631	}
 632
 633	protected void scheduleWakeupCall(int seconds, boolean ping) {
 634		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 635		Context context = getApplicationContext();
 636		AlarmManager alarmManager = (AlarmManager) context
 637				.getSystemService(Context.ALARM_SERVICE);
 638
 639		if (ping) {
 640			if (this.pingIntent == null) {
 641				this.pingIntent = new Intent(context, EventReceiver.class);
 642				this.pingIntent.setAction("ping");
 643				this.pingIntent.putExtra("time", timeToWake);
 644				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 645						this.pingIntent, 0);
 646				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 647						timeToWake, pendingPingIntent);
 648				// Log.d(LOGTAG,"schedule ping in "+seconds+" seconds");
 649			} else {
 650				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
 651				if (scheduledTime < SystemClock.elapsedRealtime()
 652						|| (scheduledTime > timeToWake)) {
 653					this.pingIntent.putExtra("time", timeToWake);
 654					alarmManager.cancel(this.pendingPingIntent);
 655					this.pendingPingIntent = PendingIntent.getBroadcast(
 656							context, 0, this.pingIntent, 0);
 657					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 658							timeToWake, pendingPingIntent);
 659					// Log.d(LOGTAG,"reschedule old ping to ping in "+seconds+" seconds");
 660				}
 661			}
 662		} else {
 663			Intent intent = new Intent(context, EventReceiver.class);
 664			intent.setAction("ping_check");
 665			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 666					intent, 0);
 667			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 668					alarmIntent);
 669		}
 670
 671	}
 672
 673	public XmppConnection createConnection(Account account) {
 674		SharedPreferences sharedPref = getPreferences();
 675		account.setResource(sharedPref.getString("resource", "mobile")
 676				.toLowerCase(Locale.getDefault()));
 677		XmppConnection connection = new XmppConnection(account, this.pm);
 678		connection.setOnMessagePacketReceivedListener(this.messageListener);
 679		connection.setOnStatusChangedListener(this.statusListener);
 680		connection.setOnPresencePacketReceivedListener(this.presenceListener);
 681		connection
 682				.setOnUnregisteredIqPacketReceivedListener(this.unknownIqListener);
 683		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 684		connection
 685				.setOnTLSExceptionReceivedListener(new OnTLSExceptionReceived() {
 686
 687					@Override
 688					public void onTLSExceptionReceived(String fingerprint,
 689							Account account) {
 690						Log.d(LOGTAG, "tls exception arrived in service");
 691						if (tlsException != null) {
 692							tlsException.onTLSExceptionReceived(fingerprint,
 693									account);
 694						}
 695					}
 696				});
 697		connection.setOnBindListener(new OnBindListener() {
 698
 699			@Override
 700			public void onBind(Account account) {
 701				databaseBackend.clearPresences(account);
 702				account.clearPresences(); // self presences
 703				if (account.getXmppConnection().hasFeatureRosterManagment()) {
 704					updateRoster(account, null);
 705				}
 706				connectMultiModeConversations(account);
 707				if (convChangedListener != null) {
 708					convChangedListener.onConversationListChanged();
 709				}
 710			}
 711		});
 712		return connection;
 713	}
 714
 715	synchronized public void sendMessage(Message message, String presence) {
 716		Account account = message.getConversation().getAccount();
 717		Conversation conv = message.getConversation();
 718		MessagePacket packet = null;
 719		boolean saveInDb = false;
 720		boolean addToConversation = false;
 721		boolean send = false;
 722		if (account.getStatus() == Account.STATUS_ONLINE) {
 723			if (message.getType() == Message.TYPE_IMAGE) {
 724				mJingleConnectionManager.createNewConnection(message);
 725			} else {
 726				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 727					if (!conv.hasValidOtrSession()) {
 728						// starting otr session. messages will be send later
 729						conv.startOtrSession(getApplicationContext(), presence,
 730								true);
 731					} else if (conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 732						// otr session aleary exists, creating message packet
 733						// accordingly
 734						packet = prepareMessagePacket(account, message,
 735								conv.getOtrSession());
 736						send = true;
 737						message.setStatus(Message.STATUS_SEND);
 738					}
 739					saveInDb = true;
 740					addToConversation = true;
 741				} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 742					message.getConversation().endOtrIfNeeded();
 743					long keyId = message.getConversation().getContact()
 744							.getPgpKeyId();
 745					packet = new MessagePacket();
 746					packet.setType(MessagePacket.TYPE_CHAT);
 747					packet.setFrom(message.getConversation().getAccount()
 748							.getFullJid());
 749					packet.setTo(message.getCounterpart());
 750					packet.setBody("This is an XEP-0027 encryted message");
 751					packet.addChild("x", "jabber:x:encrypted").setContent(
 752							message.getEncryptedBody());
 753					message.setStatus(Message.STATUS_SEND);
 754					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 755					saveInDb = true;
 756					addToConversation = true;
 757					send = true;
 758				} else {
 759					message.getConversation().endOtrIfNeeded();
 760					// don't encrypt
 761					if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 762						message.setStatus(Message.STATUS_SEND);
 763						saveInDb = true;
 764						addToConversation = true;
 765					}
 766					packet = prepareMessagePacket(account, message, null);
 767					send = true;
 768				}
 769			}
 770		} else {
 771			// account is offline
 772			saveInDb = true;
 773			addToConversation = true;
 774
 775		}
 776		if (saveInDb) {
 777			databaseBackend.createMessage(message);
 778		}
 779		if (addToConversation) {
 780			conv.getMessages().add(message);
 781			if (convChangedListener != null) {
 782				convChangedListener.onConversationListChanged();
 783			}
 784		}
 785		if ((send) && (packet != null)) {
 786			account.getXmppConnection().sendMessagePacket(packet);
 787		}
 788
 789	}
 790
 791	private void sendUnsendMessages(Conversation conversation) {
 792		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 793			if ((conversation.getMessages().get(i).getStatus() == Message.STATUS_UNSEND)
 794					&& (conversation.getMessages().get(i).getEncryption() == Message.ENCRYPTION_NONE)) {
 795				Message message = conversation.getMessages().get(i);
 796				MessagePacket packet = prepareMessagePacket(
 797						conversation.getAccount(), message, null);
 798				conversation.getAccount().getXmppConnection()
 799						.sendMessagePacket(packet);
 800				message.setStatus(Message.STATUS_SEND);
 801				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 802					databaseBackend.updateMessage(message);
 803				} else {
 804					databaseBackend.deleteMessage(message);
 805					conversation.getMessages().remove(i);
 806					i--;
 807				}
 808			}
 809		}
 810	}
 811
 812	public MessagePacket prepareMessagePacket(Account account, Message message,
 813			Session otrSession) {
 814		MessagePacket packet = new MessagePacket();
 815		if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 816			packet.setType(MessagePacket.TYPE_CHAT);
 817			if (otrSession != null) {
 818				try {
 819					packet.setBody(otrSession.transformSending(message
 820							.getBody()));
 821				} catch (OtrException e) {
 822					Log.d(LOGTAG,
 823							account.getJid()
 824									+ ": could not encrypt message to "
 825									+ message.getCounterpart());
 826				}
 827				packet.addChild("private", "urn:xmpp:carbons:2");
 828				packet.addChild("no-copy", "urn:xmpp:hints");
 829				packet.setTo(otrSession.getSessionID().getAccountID() + "/"
 830						+ otrSession.getSessionID().getUserID());
 831				packet.setFrom(account.getFullJid());
 832			} else {
 833				packet.setBody(message.getBody());
 834				packet.setTo(message.getCounterpart());
 835				packet.setFrom(account.getJid());
 836			}
 837		} else if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 838			packet.setType(MessagePacket.TYPE_GROUPCHAT);
 839			packet.setBody(message.getBody());
 840			packet.setTo(message.getCounterpart().split("/")[0]);
 841			packet.setFrom(account.getJid());
 842		}
 843		packet.setId(message.getUuid());
 844		return packet;
 845	}
 846
 847	private void getRoster(Account account,
 848			final OnRosterFetchedListener listener) {
 849		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 850		for (int i = 0; i < contacts.size(); ++i) {
 851			contacts.get(i).setAccount(account);
 852		}
 853		if (listener != null) {
 854			listener.onRosterFetched(contacts);
 855		}
 856	}
 857
 858	public List<Contact> getRoster(Account account) {
 859		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 860		for (int i = 0; i < contacts.size(); ++i) {
 861			contacts.get(i).setAccount(account);
 862		}
 863		return contacts;
 864	}
 865
 866	public void updateRoster(final Account account,
 867			final OnRosterFetchedListener listener) {
 868		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 869		if (!"".equals(account.getRosterVersion())) {
 870			Log.d(LOGTAG, account.getJid() + ": fetching roster version "
 871					+ account.getRosterVersion());
 872		} else {
 873			Log.d(LOGTAG, account.getJid() + ": fetching roster");
 874		}
 875		iqPacket.query("jabber:iq:roster").setAttribute("ver",
 876				account.getRosterVersion());
 877		account.getXmppConnection().sendIqPacket(iqPacket,
 878				new OnIqPacketReceived() {
 879
 880					@Override
 881					public void onIqPacketReceived(final Account account,
 882							IqPacket packet) {
 883						Element roster = packet.findChild("query");
 884						if (roster != null) {
 885							Log.d(LOGTAG, account.getJid()
 886									+ ": processing roster");
 887							processRosterItems(account, roster);
 888							StringBuilder mWhere = new StringBuilder();
 889							mWhere.append("jid NOT IN(");
 890							List<Element> items = roster.getChildren();
 891							for (int i = 0; i < items.size(); ++i) {
 892								mWhere.append(DatabaseUtils
 893										.sqlEscapeString(items.get(i)
 894												.getAttribute("jid")));
 895								if (i != items.size() - 1) {
 896									mWhere.append(",");
 897								}
 898							}
 899							mWhere.append(") and accountUuid = \"");
 900							mWhere.append(account.getUuid());
 901							mWhere.append("\"");
 902							List<Contact> contactsToDelete = databaseBackend
 903									.getContacts(mWhere.toString());
 904							for (Contact contact : contactsToDelete) {
 905								databaseBackend.deleteContact(contact);
 906								replaceContactInConversation(account,
 907										contact.getJid(), null);
 908							}
 909
 910						} else {
 911							Log.d(LOGTAG, account.getJid()
 912									+ ": empty roster returend");
 913						}
 914						mergePhoneContactsWithRoster(new OnPhoneContactsMerged() {
 915
 916							@Override
 917							public void phoneContactsMerged() {
 918								if (listener != null) {
 919									getRoster(account, listener);
 920								}
 921							}
 922						});
 923					}
 924				});
 925	}
 926
 927	public void mergePhoneContactsWithRoster(
 928			final OnPhoneContactsMerged listener) {
 929		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 930				new OnPhoneContactsLoadedListener() {
 931					@Override
 932					public void onPhoneContactsLoaded(
 933							Hashtable<String, Bundle> phoneContacts) {
 934						List<Contact> contacts = databaseBackend
 935								.getContactsByAccount(null);
 936						for (int i = 0; i < contacts.size(); ++i) {
 937							Contact contact = contacts.get(i);
 938							if (phoneContacts.containsKey(contact.getJid())) {
 939								Bundle phoneContact = phoneContacts.get(contact
 940										.getJid());
 941								String systemAccount = phoneContact
 942										.getInt("phoneid")
 943										+ "#"
 944										+ phoneContact.getString("lookup");
 945								contact.setSystemAccount(systemAccount);
 946								contact.setPhotoUri(phoneContact
 947										.getString("photouri"));
 948								contact.setDisplayName(phoneContact
 949										.getString("displayname"));
 950								databaseBackend.updateContact(contact, false);
 951								replaceContactInConversation(
 952										contact.getAccount(), contact.getJid(),
 953										contact);
 954							} else {
 955								if ((contact.getSystemAccount() != null)
 956										|| (contact.getProfilePhoto() != null)) {
 957									contact.setSystemAccount(null);
 958									contact.setPhotoUri(null);
 959									databaseBackend.updateContact(contact,
 960											false);
 961									replaceContactInConversation(
 962											contact.getAccount(),
 963											contact.getJid(), contact);
 964								}
 965							}
 966						}
 967						if (listener != null) {
 968							listener.phoneContactsMerged();
 969						}
 970					}
 971				});
 972	}
 973
 974	public List<Conversation> getConversations() {
 975		if (this.conversations == null) {
 976			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
 977			for (Account account : this.accounts) {
 978				accountLookupTable.put(account.getUuid(), account);
 979			}
 980			this.conversations = databaseBackend
 981					.getConversations(Conversation.STATUS_AVAILABLE);
 982			for (Conversation conv : this.conversations) {
 983				Account account = accountLookupTable.get(conv.getAccountUuid());
 984				conv.setAccount(account);
 985				conv.setContact(findContact(account, conv.getContactJid()));
 986				conv.setMessages(databaseBackend.getMessages(conv, 50));
 987			}
 988		}
 989		Collections.sort(this.conversations, new Comparator<Conversation>() {
 990			@Override
 991			public int compare(Conversation lhs, Conversation rhs) {
 992				return (int) (rhs.getLatestMessage().getTimeSent() - lhs
 993						.getLatestMessage().getTimeSent());
 994			}
 995		});
 996		return this.conversations;
 997	}
 998
 999	public List<Account> getAccounts() {
1000		return this.accounts;
1001	}
1002
1003	public Contact findContact(Account account, String jid) {
1004		Contact contact = databaseBackend.findContact(account, jid);
1005		if (contact != null) {
1006			contact.setAccount(account);
1007		}
1008		return contact;
1009	}
1010
1011	public Conversation findOrCreateConversation(Account account, String jid,
1012			boolean muc) {
1013		for (Conversation conv : this.getConversations()) {
1014			if ((conv.getAccount().equals(account))
1015					&& (conv.getContactJid().split("/")[0].equals(jid))) {
1016				return conv;
1017			}
1018		}
1019		Conversation conversation = databaseBackend.findConversation(account,
1020				jid);
1021		if (conversation != null) {
1022			conversation.setStatus(Conversation.STATUS_AVAILABLE);
1023			conversation.setAccount(account);
1024			if (muc) {
1025				conversation.setMode(Conversation.MODE_MULTI);
1026			} else {
1027				conversation.setMode(Conversation.MODE_SINGLE);
1028			}
1029			conversation.setMessages(databaseBackend.getMessages(conversation,
1030					50));
1031			this.databaseBackend.updateConversation(conversation);
1032			conversation.setContact(findContact(account,
1033					conversation.getContactJid()));
1034		} else {
1035			String conversationName;
1036			Contact contact = findContact(account, jid);
1037			if (contact != null) {
1038				conversationName = contact.getDisplayName();
1039			} else {
1040				conversationName = jid.split("@")[0];
1041			}
1042			if (muc) {
1043				conversation = new Conversation(conversationName, account, jid,
1044						Conversation.MODE_MULTI);
1045			} else {
1046				conversation = new Conversation(conversationName, account, jid,
1047						Conversation.MODE_SINGLE);
1048			}
1049			conversation.setContact(contact);
1050			this.databaseBackend.createConversation(conversation);
1051		}
1052		this.conversations.add(conversation);
1053		if ((account.getStatus() == Account.STATUS_ONLINE)
1054				&& (conversation.getMode() == Conversation.MODE_MULTI)) {
1055			joinMuc(conversation);
1056		}
1057		if (this.convChangedListener != null) {
1058			this.convChangedListener.onConversationListChanged();
1059		}
1060		return conversation;
1061	}
1062
1063	public void archiveConversation(Conversation conversation) {
1064		if (conversation.getMode() == Conversation.MODE_MULTI) {
1065			leaveMuc(conversation);
1066		} else {
1067			conversation.endOtrIfNeeded();
1068		}
1069		this.databaseBackend.updateConversation(conversation);
1070		this.conversations.remove(conversation);
1071		if (this.convChangedListener != null) {
1072			this.convChangedListener.onConversationListChanged();
1073		}
1074	}
1075
1076	public void clearConversationHistory(Conversation conversation) {
1077		this.databaseBackend.deleteMessagesInConversation(conversation);
1078		this.fileBackend.removeFiles(conversation);
1079		conversation.getMessages().clear();
1080		if (this.convChangedListener != null) {
1081			this.convChangedListener.onConversationListChanged();
1082		}
1083	}
1084
1085	public int getConversationCount() {
1086		return this.databaseBackend.getConversationCount();
1087	}
1088
1089	public void createAccount(Account account) {
1090		databaseBackend.createAccount(account);
1091		this.accounts.add(account);
1092		this.reconnectAccount(account, false);
1093		if (accountChangedListener != null)
1094			accountChangedListener.onAccountListChangedListener();
1095	}
1096
1097	public void deleteContact(Contact contact) {
1098		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1099		Element query = iq.query("jabber:iq:roster");
1100		query.addChild("item").setAttribute("jid", contact.getJid())
1101				.setAttribute("subscription", "remove");
1102		contact.getAccount().getXmppConnection().sendIqPacket(iq, null);
1103		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1104				null);
1105		databaseBackend.deleteContact(contact);
1106	}
1107
1108	public void updateAccount(Account account) {
1109		this.statusListener.onStatusChanged(account);
1110		databaseBackend.updateAccount(account);
1111		reconnectAccount(account, false);
1112		if (accountChangedListener != null)
1113			accountChangedListener.onAccountListChangedListener();
1114	}
1115
1116	public void deleteAccount(Account account) {
1117		if (account.getXmppConnection() != null) {
1118			this.disconnect(account, true);
1119		}
1120		databaseBackend.deleteAccount(account);
1121		this.accounts.remove(account);
1122		if (accountChangedListener != null)
1123			accountChangedListener.onAccountListChangedListener();
1124	}
1125
1126	public void setOnConversationListChangedListener(
1127			OnConversationListChangedListener listener) {
1128		this.convChangedListener = listener;
1129		this.convChangedListenerCount++;
1130	}
1131
1132	public void removeOnConversationListChangedListener() {
1133		this.convChangedListenerCount--;
1134		if (this.convChangedListenerCount == 0) {
1135			this.convChangedListener = null;
1136		}
1137	}
1138
1139	public void setOnAccountListChangedListener(
1140			OnAccountListChangedListener listener) {
1141		this.accountChangedListener = listener;
1142	}
1143
1144	public void removeOnAccountListChangedListener() {
1145		this.accountChangedListener = null;
1146	}
1147
1148	public void connectMultiModeConversations(Account account) {
1149		List<Conversation> conversations = getConversations();
1150		for (int i = 0; i < conversations.size(); i++) {
1151			Conversation conversation = conversations.get(i);
1152			if ((conversation.getMode() == Conversation.MODE_MULTI)
1153					&& (conversation.getAccount() == account)) {
1154				joinMuc(conversation);
1155			}
1156		}
1157	}
1158
1159	public void joinMuc(Conversation conversation) {
1160		String[] mucParts = conversation.getContactJid().split("/");
1161		String muc;
1162		String nick;
1163		if (mucParts.length == 2) {
1164			muc = mucParts[0];
1165			nick = mucParts[1];
1166		} else {
1167			muc = mucParts[0];
1168			nick = conversation.getAccount().getUsername();
1169		}
1170		PresencePacket packet = new PresencePacket();
1171		packet.setAttribute("to", muc + "/" + nick);
1172		Element x = new Element("x");
1173		x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1174		if (conversation.getMessages().size() != 0) {
1175			long lastMsgTime = conversation.getLatestMessage().getTimeSent();
1176			long diff = (System.currentTimeMillis() - lastMsgTime) / 1000 - 1;
1177			x.addChild("history").setAttribute("seconds", diff + "");
1178		}
1179		packet.addChild(x);
1180		conversation.getAccount().getXmppConnection()
1181				.sendPresencePacket(packet);
1182	}
1183
1184	private OnRenameListener renameListener = null;
1185
1186	public void setOnRenameListener(OnRenameListener listener) {
1187		this.renameListener = listener;
1188	}
1189
1190	public void renameInMuc(final Conversation conversation, final String nick) {
1191		final MucOptions options = conversation.getMucOptions();
1192		if (options.online()) {
1193			options.setOnRenameListener(new OnRenameListener() {
1194
1195				@Override
1196				public void onRename(boolean success) {
1197					if (renameListener != null) {
1198						renameListener.onRename(success);
1199					}
1200					if (success) {
1201						String jid = conversation.getContactJid().split("/")[0] + "/"
1202								+ nick;
1203						conversation.setContactJid(jid);
1204						databaseBackend.updateConversation(conversation);
1205					}
1206				}
1207			});
1208			options.flagAboutToRename();
1209			PresencePacket packet = new PresencePacket();
1210			packet.setAttribute("to",
1211					conversation.getContactJid().split("/")[0] + "/" + nick);
1212			packet.setAttribute("from", conversation.getAccount().getFullJid());
1213
1214			conversation.getAccount().getXmppConnection()
1215					.sendPresencePacket(packet, null);
1216		} else {
1217			String jid = conversation.getContactJid().split("/")[0] + "/"
1218					+ nick;
1219			conversation.setContactJid(jid);
1220			databaseBackend.updateConversation(conversation);
1221			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
1222				joinMuc(conversation);
1223			}
1224		}
1225	}
1226
1227	public void leaveMuc(Conversation conversation) {
1228		PresencePacket packet = new PresencePacket();
1229		packet.setAttribute("to", conversation.getContactJid().split("/")[0]
1230				+ "/" + conversation.getMucOptions().getNick());
1231		packet.setAttribute("from", conversation.getAccount().getFullJid());
1232		packet.setAttribute("type", "unavailable");
1233		Log.d(LOGTAG, "send leaving muc " + packet);
1234		conversation.getAccount().getXmppConnection()
1235				.sendPresencePacket(packet);
1236		conversation.getMucOptions().setOffline();
1237	}
1238
1239	public void disconnect(Account account, boolean force) {
1240		if ((account.getStatus() == Account.STATUS_ONLINE)
1241				|| (account.getStatus() == Account.STATUS_DISABLED)) {
1242			if (!force) {
1243				List<Conversation> conversations = getConversations();
1244				for (int i = 0; i < conversations.size(); i++) {
1245					Conversation conversation = conversations.get(i);
1246					if (conversation.getAccount() == account) {
1247						if (conversation.getMode() == Conversation.MODE_MULTI) {
1248							leaveMuc(conversation);
1249						} else {
1250							conversation.endOtrIfNeeded();
1251						}
1252					}
1253				}
1254			}
1255			account.getXmppConnection().disconnect(force);
1256		}
1257	}
1258
1259	@Override
1260	public IBinder onBind(Intent intent) {
1261		return mBinder;
1262	}
1263
1264	public void updateContact(Contact contact) {
1265		databaseBackend.updateContact(contact, false);
1266		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1267				contact);
1268	}
1269
1270	public void updateMessage(Message message) {
1271		databaseBackend.updateMessage(message);
1272	}
1273
1274	public void createContact(Contact contact) {
1275		SharedPreferences sharedPref = getPreferences();
1276		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1277		if (autoGrant) {
1278			contact.setSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
1279			contact.setSubscriptionOption(Contact.Subscription.ASKING);
1280		}
1281		databaseBackend.createContact(contact);
1282		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1283		Element query = new Element("query");
1284		query.setAttribute("xmlns", "jabber:iq:roster");
1285		Element item = new Element("item");
1286		item.setAttribute("jid", contact.getJid());
1287		item.setAttribute("name", contact.getJid());
1288		query.addChild(item);
1289		iq.addChild(query);
1290		Account account = contact.getAccount();
1291		account.getXmppConnection().sendIqPacket(iq, null);
1292		if (autoGrant) {
1293			requestPresenceUpdatesFrom(contact);
1294			if (account.getXmppConnection().hasPendingSubscription(
1295					contact.getJid())) {
1296				Log.d("xmppService", "contact had pending subscription");
1297				sendPresenceUpdatesTo(contact);
1298			}
1299		}
1300		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1301				contact);
1302	}
1303
1304	public void requestPresenceUpdatesFrom(Contact contact) {
1305		// Requesting a Subscription type=subscribe
1306		PresencePacket packet = new PresencePacket();
1307		packet.setAttribute("type", "subscribe");
1308		packet.setAttribute("to", contact.getJid());
1309		packet.setAttribute("from", contact.getAccount().getJid());
1310		Log.d(LOGTAG, packet.toString());
1311		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1312	}
1313
1314	public void stopPresenceUpdatesFrom(Contact contact) {
1315		// Unsubscribing type='unsubscribe'
1316		PresencePacket packet = new PresencePacket();
1317		packet.setAttribute("type", "unsubscribe");
1318		packet.setAttribute("to", contact.getJid());
1319		packet.setAttribute("from", contact.getAccount().getJid());
1320		Log.d(LOGTAG, packet.toString());
1321		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1322	}
1323
1324	public void stopPresenceUpdatesTo(Contact contact) {
1325		// Canceling a Subscription type=unsubscribed
1326		PresencePacket packet = new PresencePacket();
1327		packet.setAttribute("type", "unsubscribed");
1328		packet.setAttribute("to", contact.getJid());
1329		packet.setAttribute("from", contact.getAccount().getJid());
1330		Log.d(LOGTAG, packet.toString());
1331		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1332	}
1333
1334	public void sendPresenceUpdatesTo(Contact contact) {
1335		// type='subscribed'
1336		PresencePacket packet = new PresencePacket();
1337		packet.setAttribute("type", "subscribed");
1338		packet.setAttribute("to", contact.getJid());
1339		packet.setAttribute("from", contact.getAccount().getJid());
1340		Log.d(LOGTAG, packet.toString());
1341		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1342	}
1343
1344	public void sendPgpPresence(Account account, String signature) {
1345		PresencePacket packet = new PresencePacket();
1346		packet.setAttribute("from", account.getFullJid());
1347		Element status = new Element("status");
1348		status.setContent("online");
1349		packet.addChild(status);
1350		Element x = new Element("x");
1351		x.setAttribute("xmlns", "jabber:x:signed");
1352		x.setContent(signature);
1353		packet.addChild(x);
1354		account.getXmppConnection().sendPresencePacket(packet);
1355	}
1356
1357	public void updateConversation(Conversation conversation) {
1358		this.databaseBackend.updateConversation(conversation);
1359	}
1360
1361	public Contact findContact(String uuid) {
1362		Contact contact = this.databaseBackend.getContact(uuid);
1363		if (contact != null) {
1364			for (Account account : getAccounts()) {
1365				if (contact.getAccountUuid().equals(account.getUuid())) {
1366					contact.setAccount(account);
1367				}
1368			}
1369		}
1370		return contact;
1371	}
1372
1373	public void removeOnTLSExceptionReceivedListener() {
1374		this.tlsException = null;
1375	}
1376
1377	// TODO dont let thread sleep but schedule wake up
1378	public void reconnectAccount(final Account account, final boolean force) {
1379		new Thread(new Runnable() {
1380
1381			@Override
1382			public void run() {
1383				if (account.getXmppConnection() != null) {
1384					disconnect(account, force);
1385				}
1386				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1387					if (account.getXmppConnection() == null) {
1388						account.setXmppConnection(createConnection(account));
1389					}
1390					Thread thread = new Thread(account.getXmppConnection());
1391					thread.start();
1392					scheduleWakeupCall((int) (CONNECT_TIMEOUT * 1.2), false);
1393				}
1394			}
1395		}).start();
1396	}
1397
1398	public void updateConversationInGui() {
1399		if (convChangedListener != null) {
1400			convChangedListener.onConversationListChanged();
1401		}
1402	}
1403
1404	public void sendConversationSubject(Conversation conversation,
1405			String subject) {
1406		MessagePacket packet = new MessagePacket();
1407		packet.setType(MessagePacket.TYPE_GROUPCHAT);
1408		packet.setTo(conversation.getContactJid().split("/")[0]);
1409		Element subjectChild = new Element("subject");
1410		subjectChild.setContent(subject);
1411		packet.addChild(subjectChild);
1412		packet.setFrom(conversation.getAccount().getJid());
1413		Account account = conversation.getAccount();
1414		if (account.getStatus() == Account.STATUS_ONLINE) {
1415			account.getXmppConnection().sendMessagePacket(packet);
1416		}
1417	}
1418
1419	public void inviteToConference(Conversation conversation,
1420			List<Contact> contacts) {
1421		for (Contact contact : contacts) {
1422			MessagePacket packet = new MessagePacket();
1423			packet.setTo(conversation.getContactJid().split("/")[0]);
1424			packet.setFrom(conversation.getAccount().getFullJid());
1425			Element x = new Element("x");
1426			x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
1427			Element invite = new Element("invite");
1428			invite.setAttribute("to", contact.getJid());
1429			x.addChild(invite);
1430			packet.addChild(x);
1431			Log.d(LOGTAG, packet.toString());
1432			conversation.getAccount().getXmppConnection()
1433					.sendMessagePacket(packet);
1434		}
1435
1436	}
1437
1438	public boolean markMessage(Account account, String recipient, String uuid,
1439			int status) {
1440		boolean marked = false;
1441		for (Conversation conversation : getConversations()) {
1442			if (conversation.getContactJid().equals(recipient)
1443					&& conversation.getAccount().equals(account)) {
1444				for (Message message : conversation.getMessages()) {
1445					if (message.getUuid().equals(uuid)) {
1446						markMessage(message, status);
1447						marked = true;
1448						break;
1449					}
1450				}
1451				break;
1452			}
1453		}
1454		return marked;
1455	}
1456
1457	public void markMessage(Message message, int status) {
1458		message.setStatus(status);
1459		databaseBackend.updateMessage(message);
1460		if (convChangedListener != null) {
1461			convChangedListener.onConversationListChanged();
1462		}
1463	}
1464
1465	public SharedPreferences getPreferences() {
1466		return PreferenceManager
1467				.getDefaultSharedPreferences(getApplicationContext());
1468	}
1469}