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		Log.d(LOGTAG,"stopping service");
 623		super.onDestroy();
 624		for (Account account : accounts) {
 625			if (account.getXmppConnection() != null) {
 626				disconnect(account, true);
 627			}
 628		}
 629	}
 630
 631	protected void scheduleWakeupCall(int seconds, boolean ping) {
 632		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 633		Context context = getApplicationContext();
 634		AlarmManager alarmManager = (AlarmManager) context
 635				.getSystemService(Context.ALARM_SERVICE);
 636
 637		if (ping) {
 638			if (this.pingIntent == null) {
 639				this.pingIntent = new Intent(context, EventReceiver.class);
 640				this.pingIntent.setAction("ping");
 641				this.pingIntent.putExtra("time", timeToWake);
 642				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 643						this.pingIntent, 0);
 644				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 645						timeToWake, pendingPingIntent);
 646				// Log.d(LOGTAG,"schedule ping in "+seconds+" seconds");
 647			} else {
 648				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
 649				if (scheduledTime < SystemClock.elapsedRealtime()
 650						|| (scheduledTime > timeToWake)) {
 651					this.pingIntent.putExtra("time", timeToWake);
 652					alarmManager.cancel(this.pendingPingIntent);
 653					this.pendingPingIntent = PendingIntent.getBroadcast(
 654							context, 0, this.pingIntent, 0);
 655					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 656							timeToWake, pendingPingIntent);
 657					// Log.d(LOGTAG,"reschedule old ping to ping in "+seconds+" seconds");
 658				}
 659			}
 660		} else {
 661			Intent intent = new Intent(context, EventReceiver.class);
 662			intent.setAction("ping_check");
 663			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 664					intent, 0);
 665			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 666					alarmIntent);
 667		}
 668
 669	}
 670
 671	public XmppConnection createConnection(Account account) {
 672		SharedPreferences sharedPref = getPreferences();
 673		account.setResource(sharedPref.getString("resource", "mobile")
 674				.toLowerCase(Locale.getDefault()));
 675		XmppConnection connection = new XmppConnection(account, this.pm);
 676		connection.setOnMessagePacketReceivedListener(this.messageListener);
 677		connection.setOnStatusChangedListener(this.statusListener);
 678		connection.setOnPresencePacketReceivedListener(this.presenceListener);
 679		connection
 680				.setOnUnregisteredIqPacketReceivedListener(this.unknownIqListener);
 681		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 682		connection
 683				.setOnTLSExceptionReceivedListener(new OnTLSExceptionReceived() {
 684
 685					@Override
 686					public void onTLSExceptionReceived(String fingerprint,
 687							Account account) {
 688						Log.d(LOGTAG, "tls exception arrived in service");
 689						if (tlsException != null) {
 690							tlsException.onTLSExceptionReceived(fingerprint,
 691									account);
 692						}
 693					}
 694				});
 695		connection.setOnBindListener(new OnBindListener() {
 696
 697			@Override
 698			public void onBind(Account account) {
 699				databaseBackend.clearPresences(account);
 700				account.clearPresences(); // self presences
 701				if (account.getXmppConnection().hasFeatureRosterManagment()) {
 702					updateRoster(account, null);
 703				}
 704				connectMultiModeConversations(account);
 705				if (convChangedListener != null) {
 706					convChangedListener.onConversationListChanged();
 707				}
 708			}
 709		});
 710		return connection;
 711	}
 712
 713	synchronized public void sendMessage(Message message, String presence) {
 714		Account account = message.getConversation().getAccount();
 715		Conversation conv = message.getConversation();
 716		MessagePacket packet = null;
 717		boolean saveInDb = false;
 718		boolean addToConversation = false;
 719		boolean send = false;
 720		if (account.getStatus() == Account.STATUS_ONLINE) {
 721			if (message.getType() == Message.TYPE_IMAGE) {
 722				mJingleConnectionManager.createNewConnection(message);
 723			} else {
 724				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 725					if (!conv.hasValidOtrSession()) {
 726						// starting otr session. messages will be send later
 727						conv.startOtrSession(getApplicationContext(), presence,
 728								true);
 729					} else if (conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 730						// otr session aleary exists, creating message packet
 731						// accordingly
 732						packet = prepareMessagePacket(account, message,
 733								conv.getOtrSession());
 734						send = true;
 735						message.setStatus(Message.STATUS_SEND);
 736					}
 737					saveInDb = true;
 738					addToConversation = true;
 739				} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 740					message.getConversation().endOtrIfNeeded();
 741					long keyId = message.getConversation().getContact()
 742							.getPgpKeyId();
 743					packet = new MessagePacket();
 744					packet.setType(MessagePacket.TYPE_CHAT);
 745					packet.setFrom(message.getConversation().getAccount()
 746							.getFullJid());
 747					packet.setTo(message.getCounterpart());
 748					packet.setBody("This is an XEP-0027 encryted message");
 749					packet.addChild("x", "jabber:x:encrypted").setContent(
 750							message.getEncryptedBody());
 751					message.setStatus(Message.STATUS_SEND);
 752					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 753					saveInDb = true;
 754					addToConversation = true;
 755					send = true;
 756				} else {
 757					message.getConversation().endOtrIfNeeded();
 758					// don't encrypt
 759					if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 760						message.setStatus(Message.STATUS_SEND);
 761						saveInDb = true;
 762						addToConversation = true;
 763					}
 764					packet = prepareMessagePacket(account, message, null);
 765					send = true;
 766				}
 767			}
 768		} else {
 769			// account is offline
 770			saveInDb = true;
 771			addToConversation = true;
 772
 773		}
 774		if (saveInDb) {
 775			databaseBackend.createMessage(message);
 776		}
 777		if (addToConversation) {
 778			conv.getMessages().add(message);
 779			if (convChangedListener != null) {
 780				convChangedListener.onConversationListChanged();
 781			}
 782		}
 783		if ((send) && (packet != null)) {
 784			account.getXmppConnection().sendMessagePacket(packet);
 785		}
 786
 787	}
 788
 789	private void sendUnsendMessages(Conversation conversation) {
 790		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 791			if ((conversation.getMessages().get(i).getStatus() == Message.STATUS_UNSEND)
 792					&& (conversation.getMessages().get(i).getEncryption() == Message.ENCRYPTION_NONE)) {
 793				Message message = conversation.getMessages().get(i);
 794				MessagePacket packet = prepareMessagePacket(
 795						conversation.getAccount(), message, null);
 796				conversation.getAccount().getXmppConnection()
 797						.sendMessagePacket(packet);
 798				message.setStatus(Message.STATUS_SEND);
 799				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 800					databaseBackend.updateMessage(message);
 801				} else {
 802					databaseBackend.deleteMessage(message);
 803					conversation.getMessages().remove(i);
 804					i--;
 805				}
 806			}
 807		}
 808	}
 809
 810	public MessagePacket prepareMessagePacket(Account account, Message message,
 811			Session otrSession) {
 812		MessagePacket packet = new MessagePacket();
 813		if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 814			packet.setType(MessagePacket.TYPE_CHAT);
 815			if (otrSession != null) {
 816				try {
 817					packet.setBody(otrSession.transformSending(message
 818							.getBody()));
 819				} catch (OtrException e) {
 820					Log.d(LOGTAG,
 821							account.getJid()
 822									+ ": could not encrypt message to "
 823									+ message.getCounterpart());
 824				}
 825				packet.addChild("private", "urn:xmpp:carbons:2");
 826				packet.addChild("no-copy", "urn:xmpp:hints");
 827				packet.setTo(otrSession.getSessionID().getAccountID() + "/"
 828						+ otrSession.getSessionID().getUserID());
 829				packet.setFrom(account.getFullJid());
 830			} else {
 831				packet.setBody(message.getBody());
 832				packet.setTo(message.getCounterpart());
 833				packet.setFrom(account.getJid());
 834			}
 835		} else if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 836			packet.setType(MessagePacket.TYPE_GROUPCHAT);
 837			packet.setBody(message.getBody());
 838			packet.setTo(message.getCounterpart().split("/")[0]);
 839			packet.setFrom(account.getJid());
 840		}
 841		packet.setId(message.getUuid());
 842		return packet;
 843	}
 844
 845	private void getRoster(Account account,
 846			final OnRosterFetchedListener listener) {
 847		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 848		for (int i = 0; i < contacts.size(); ++i) {
 849			contacts.get(i).setAccount(account);
 850		}
 851		if (listener != null) {
 852			listener.onRosterFetched(contacts);
 853		}
 854	}
 855
 856	public List<Contact> getRoster(Account account) {
 857		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 858		for (int i = 0; i < contacts.size(); ++i) {
 859			contacts.get(i).setAccount(account);
 860		}
 861		return contacts;
 862	}
 863
 864	public void updateRoster(final Account account,
 865			final OnRosterFetchedListener listener) {
 866		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 867		if (!"".equals(account.getRosterVersion())) {
 868			Log.d(LOGTAG, account.getJid() + ": fetching roster version "
 869					+ account.getRosterVersion());
 870		} else {
 871			Log.d(LOGTAG, account.getJid() + ": fetching roster");
 872		}
 873		iqPacket.query("jabber:iq:roster").setAttribute("ver",
 874				account.getRosterVersion());
 875		account.getXmppConnection().sendIqPacket(iqPacket,
 876				new OnIqPacketReceived() {
 877
 878					@Override
 879					public void onIqPacketReceived(final Account account,
 880							IqPacket packet) {
 881						Element roster = packet.findChild("query");
 882						if (roster != null) {
 883							Log.d(LOGTAG, account.getJid()
 884									+ ": processing roster");
 885							processRosterItems(account, roster);
 886							StringBuilder mWhere = new StringBuilder();
 887							mWhere.append("jid NOT IN(");
 888							List<Element> items = roster.getChildren();
 889							for (int i = 0; i < items.size(); ++i) {
 890								mWhere.append(DatabaseUtils
 891										.sqlEscapeString(items.get(i)
 892												.getAttribute("jid")));
 893								if (i != items.size() - 1) {
 894									mWhere.append(",");
 895								}
 896							}
 897							mWhere.append(") and accountUuid = \"");
 898							mWhere.append(account.getUuid());
 899							mWhere.append("\"");
 900							List<Contact> contactsToDelete = databaseBackend
 901									.getContacts(mWhere.toString());
 902							for (Contact contact : contactsToDelete) {
 903								databaseBackend.deleteContact(contact);
 904								replaceContactInConversation(account,
 905										contact.getJid(), null);
 906							}
 907
 908						} else {
 909							Log.d(LOGTAG, account.getJid()
 910									+ ": empty roster returend");
 911						}
 912						mergePhoneContactsWithRoster(new OnPhoneContactsMerged() {
 913
 914							@Override
 915							public void phoneContactsMerged() {
 916								if (listener != null) {
 917									getRoster(account, listener);
 918								}
 919							}
 920						});
 921					}
 922				});
 923	}
 924
 925	public void mergePhoneContactsWithRoster(
 926			final OnPhoneContactsMerged listener) {
 927		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 928				new OnPhoneContactsLoadedListener() {
 929					@Override
 930					public void onPhoneContactsLoaded(
 931							Hashtable<String, Bundle> phoneContacts) {
 932						List<Contact> contacts = databaseBackend
 933								.getContactsByAccount(null);
 934						for (int i = 0; i < contacts.size(); ++i) {
 935							Contact contact = contacts.get(i);
 936							if (phoneContacts.containsKey(contact.getJid())) {
 937								Bundle phoneContact = phoneContacts.get(contact
 938										.getJid());
 939								String systemAccount = phoneContact
 940										.getInt("phoneid")
 941										+ "#"
 942										+ phoneContact.getString("lookup");
 943								contact.setSystemAccount(systemAccount);
 944								contact.setPhotoUri(phoneContact
 945										.getString("photouri"));
 946								contact.setDisplayName(phoneContact
 947										.getString("displayname"));
 948								databaseBackend.updateContact(contact, false);
 949								replaceContactInConversation(
 950										contact.getAccount(), contact.getJid(),
 951										contact);
 952							} else {
 953								if ((contact.getSystemAccount() != null)
 954										|| (contact.getProfilePhoto() != null)) {
 955									contact.setSystemAccount(null);
 956									contact.setPhotoUri(null);
 957									databaseBackend.updateContact(contact,
 958											false);
 959									replaceContactInConversation(
 960											contact.getAccount(),
 961											contact.getJid(), contact);
 962								}
 963							}
 964						}
 965						if (listener != null) {
 966							listener.phoneContactsMerged();
 967						}
 968					}
 969				});
 970	}
 971
 972	public List<Conversation> getConversations() {
 973		if (this.conversations == null) {
 974			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
 975			for (Account account : this.accounts) {
 976				accountLookupTable.put(account.getUuid(), account);
 977			}
 978			this.conversations = databaseBackend
 979					.getConversations(Conversation.STATUS_AVAILABLE);
 980			for (Conversation conv : this.conversations) {
 981				Account account = accountLookupTable.get(conv.getAccountUuid());
 982				conv.setAccount(account);
 983				conv.setContact(findContact(account, conv.getContactJid()));
 984				conv.setMessages(databaseBackend.getMessages(conv, 50));
 985			}
 986		}
 987		Collections.sort(this.conversations, new Comparator<Conversation>() {
 988			@Override
 989			public int compare(Conversation lhs, Conversation rhs) {
 990				return (int) (rhs.getLatestMessage().getTimeSent() - lhs
 991						.getLatestMessage().getTimeSent());
 992			}
 993		});
 994		return this.conversations;
 995	}
 996
 997	public List<Account> getAccounts() {
 998		return this.accounts;
 999	}
1000
1001	public Contact findContact(Account account, String jid) {
1002		Contact contact = databaseBackend.findContact(account, jid);
1003		if (contact != null) {
1004			contact.setAccount(account);
1005		}
1006		return contact;
1007	}
1008
1009	public Conversation findOrCreateConversation(Account account, String jid,
1010			boolean muc) {
1011		for (Conversation conv : this.getConversations()) {
1012			if ((conv.getAccount().equals(account))
1013					&& (conv.getContactJid().split("/")[0].equals(jid))) {
1014				return conv;
1015			}
1016		}
1017		Conversation conversation = databaseBackend.findConversation(account,
1018				jid);
1019		if (conversation != null) {
1020			conversation.setStatus(Conversation.STATUS_AVAILABLE);
1021			conversation.setAccount(account);
1022			if (muc) {
1023				conversation.setMode(Conversation.MODE_MULTI);
1024			} else {
1025				conversation.setMode(Conversation.MODE_SINGLE);
1026			}
1027			conversation.setMessages(databaseBackend.getMessages(conversation,
1028					50));
1029			this.databaseBackend.updateConversation(conversation);
1030			conversation.setContact(findContact(account,
1031					conversation.getContactJid()));
1032		} else {
1033			String conversationName;
1034			Contact contact = findContact(account, jid);
1035			if (contact != null) {
1036				conversationName = contact.getDisplayName();
1037			} else {
1038				conversationName = jid.split("@")[0];
1039			}
1040			if (muc) {
1041				conversation = new Conversation(conversationName, account, jid,
1042						Conversation.MODE_MULTI);
1043			} else {
1044				conversation = new Conversation(conversationName, account, jid,
1045						Conversation.MODE_SINGLE);
1046			}
1047			conversation.setContact(contact);
1048			this.databaseBackend.createConversation(conversation);
1049		}
1050		this.conversations.add(conversation);
1051		if ((account.getStatus() == Account.STATUS_ONLINE)
1052				&& (conversation.getMode() == Conversation.MODE_MULTI)) {
1053			joinMuc(conversation);
1054		}
1055		if (this.convChangedListener != null) {
1056			this.convChangedListener.onConversationListChanged();
1057		}
1058		return conversation;
1059	}
1060
1061	public void archiveConversation(Conversation conversation) {
1062		if (conversation.getMode() == Conversation.MODE_MULTI) {
1063			leaveMuc(conversation);
1064		} else {
1065			conversation.endOtrIfNeeded();
1066		}
1067		this.databaseBackend.updateConversation(conversation);
1068		this.conversations.remove(conversation);
1069		if (this.convChangedListener != null) {
1070			this.convChangedListener.onConversationListChanged();
1071		}
1072	}
1073
1074	public void clearConversationHistory(Conversation conversation) {
1075		this.databaseBackend.deleteMessagesInConversation(conversation);
1076		this.fileBackend.removeFiles(conversation);
1077		conversation.getMessages().clear();
1078		if (this.convChangedListener != null) {
1079			this.convChangedListener.onConversationListChanged();
1080		}
1081	}
1082
1083	public int getConversationCount() {
1084		return this.databaseBackend.getConversationCount();
1085	}
1086
1087	public void createAccount(Account account) {
1088		databaseBackend.createAccount(account);
1089		this.accounts.add(account);
1090		this.reconnectAccount(account, false);
1091		if (accountChangedListener != null)
1092			accountChangedListener.onAccountListChangedListener();
1093	}
1094
1095	public void deleteContact(Contact contact) {
1096		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1097		Element query = iq.query("jabber:iq:roster");
1098		query.addChild("item").setAttribute("jid", contact.getJid())
1099				.setAttribute("subscription", "remove");
1100		contact.getAccount().getXmppConnection().sendIqPacket(iq, null);
1101		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1102				null);
1103		databaseBackend.deleteContact(contact);
1104	}
1105
1106	public void updateAccount(Account account) {
1107		this.statusListener.onStatusChanged(account);
1108		databaseBackend.updateAccount(account);
1109		reconnectAccount(account, false);
1110		if (accountChangedListener != null)
1111			accountChangedListener.onAccountListChangedListener();
1112	}
1113
1114	public void deleteAccount(Account account) {
1115		if (account.getXmppConnection() != null) {
1116			this.disconnect(account, true);
1117		}
1118		databaseBackend.deleteAccount(account);
1119		this.accounts.remove(account);
1120		if (accountChangedListener != null)
1121			accountChangedListener.onAccountListChangedListener();
1122	}
1123
1124	public void setOnConversationListChangedListener(
1125			OnConversationListChangedListener listener) {
1126		this.convChangedListener = listener;
1127		this.convChangedListenerCount++;
1128	}
1129
1130	public void removeOnConversationListChangedListener() {
1131		this.convChangedListenerCount--;
1132		if (this.convChangedListenerCount == 0) {
1133			this.convChangedListener = null;
1134		}
1135	}
1136
1137	public void setOnAccountListChangedListener(
1138			OnAccountListChangedListener listener) {
1139		this.accountChangedListener = listener;
1140	}
1141
1142	public void removeOnAccountListChangedListener() {
1143		this.accountChangedListener = null;
1144	}
1145
1146	public void connectMultiModeConversations(Account account) {
1147		List<Conversation> conversations = getConversations();
1148		for (int i = 0; i < conversations.size(); i++) {
1149			Conversation conversation = conversations.get(i);
1150			if ((conversation.getMode() == Conversation.MODE_MULTI)
1151					&& (conversation.getAccount() == account)) {
1152				joinMuc(conversation);
1153			}
1154		}
1155	}
1156
1157	public void joinMuc(Conversation conversation) {
1158		String[] mucParts = conversation.getContactJid().split("/");
1159		String muc;
1160		String nick;
1161		if (mucParts.length == 2) {
1162			muc = mucParts[0];
1163			nick = mucParts[1];
1164		} else {
1165			muc = mucParts[0];
1166			nick = conversation.getAccount().getUsername();
1167		}
1168		PresencePacket packet = new PresencePacket();
1169		packet.setAttribute("to", muc + "/" + nick);
1170		Element x = new Element("x");
1171		x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1172		if (conversation.getMessages().size() != 0) {
1173			long lastMsgTime = conversation.getLatestMessage().getTimeSent();
1174			long diff = (System.currentTimeMillis() - lastMsgTime) / 1000 - 1;
1175			x.addChild("history").setAttribute("seconds", diff + "");
1176		}
1177		packet.addChild(x);
1178		conversation.getAccount().getXmppConnection()
1179				.sendPresencePacket(packet);
1180	}
1181
1182	private OnRenameListener renameListener = null;
1183
1184	public void setOnRenameListener(OnRenameListener listener) {
1185		this.renameListener = listener;
1186	}
1187
1188	public void renameInMuc(final Conversation conversation, final String nick) {
1189		final MucOptions options = conversation.getMucOptions();
1190		if (options.online()) {
1191			options.setOnRenameListener(new OnRenameListener() {
1192
1193				@Override
1194				public void onRename(boolean success) {
1195					if (renameListener != null) {
1196						renameListener.onRename(success);
1197					}
1198					if (success) {
1199						String jid = conversation.getContactJid().split("/")[0] + "/"
1200								+ nick;
1201						conversation.setContactJid(jid);
1202						databaseBackend.updateConversation(conversation);
1203					}
1204				}
1205			});
1206			options.flagAboutToRename();
1207			PresencePacket packet = new PresencePacket();
1208			packet.setAttribute("to",
1209					conversation.getContactJid().split("/")[0] + "/" + nick);
1210			packet.setAttribute("from", conversation.getAccount().getFullJid());
1211
1212			conversation.getAccount().getXmppConnection()
1213					.sendPresencePacket(packet, null);
1214		} else {
1215			String jid = conversation.getContactJid().split("/")[0] + "/"
1216					+ nick;
1217			conversation.setContactJid(jid);
1218			databaseBackend.updateConversation(conversation);
1219			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
1220				joinMuc(conversation);
1221			}
1222		}
1223	}
1224
1225	public void leaveMuc(Conversation conversation) {
1226		PresencePacket packet = new PresencePacket();
1227		packet.setAttribute("to", conversation.getContactJid().split("/")[0]
1228				+ "/" + conversation.getMucOptions().getNick());
1229		packet.setAttribute("from", conversation.getAccount().getFullJid());
1230		packet.setAttribute("type", "unavailable");
1231		Log.d(LOGTAG, "send leaving muc " + packet);
1232		conversation.getAccount().getXmppConnection()
1233				.sendPresencePacket(packet);
1234		conversation.getMucOptions().setOffline();
1235	}
1236
1237	public void disconnect(Account account, boolean force) {
1238		if ((account.getStatus() == Account.STATUS_ONLINE)
1239				|| (account.getStatus() == Account.STATUS_DISABLED)) {
1240			if (!force) {
1241				List<Conversation> conversations = getConversations();
1242				for (int i = 0; i < conversations.size(); i++) {
1243					Conversation conversation = conversations.get(i);
1244					if (conversation.getAccount() == account) {
1245						if (conversation.getMode() == Conversation.MODE_MULTI) {
1246							leaveMuc(conversation);
1247						} else {
1248							conversation.endOtrIfNeeded();
1249						}
1250					}
1251				}
1252			}
1253			account.getXmppConnection().disconnect(force);
1254		}
1255	}
1256
1257	@Override
1258	public IBinder onBind(Intent intent) {
1259		return mBinder;
1260	}
1261
1262	public void updateContact(Contact contact) {
1263		databaseBackend.updateContact(contact, false);
1264		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1265				contact);
1266	}
1267
1268	public void updateMessage(Message message) {
1269		databaseBackend.updateMessage(message);
1270	}
1271
1272	public void createContact(Contact contact) {
1273		SharedPreferences sharedPref = getPreferences();
1274		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1275		if (autoGrant) {
1276			contact.setSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
1277			contact.setSubscriptionOption(Contact.Subscription.ASKING);
1278		}
1279		databaseBackend.createContact(contact);
1280		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1281		Element query = new Element("query");
1282		query.setAttribute("xmlns", "jabber:iq:roster");
1283		Element item = new Element("item");
1284		item.setAttribute("jid", contact.getJid());
1285		item.setAttribute("name", contact.getJid());
1286		query.addChild(item);
1287		iq.addChild(query);
1288		Account account = contact.getAccount();
1289		account.getXmppConnection().sendIqPacket(iq, null);
1290		if (autoGrant) {
1291			requestPresenceUpdatesFrom(contact);
1292			if (account.getXmppConnection().hasPendingSubscription(
1293					contact.getJid())) {
1294				Log.d("xmppService", "contact had pending subscription");
1295				sendPresenceUpdatesTo(contact);
1296			}
1297		}
1298		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1299				contact);
1300	}
1301
1302	public void requestPresenceUpdatesFrom(Contact contact) {
1303		// Requesting a Subscription type=subscribe
1304		PresencePacket packet = new PresencePacket();
1305		packet.setAttribute("type", "subscribe");
1306		packet.setAttribute("to", contact.getJid());
1307		packet.setAttribute("from", contact.getAccount().getJid());
1308		Log.d(LOGTAG, packet.toString());
1309		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1310	}
1311
1312	public void stopPresenceUpdatesFrom(Contact contact) {
1313		// Unsubscribing type='unsubscribe'
1314		PresencePacket packet = new PresencePacket();
1315		packet.setAttribute("type", "unsubscribe");
1316		packet.setAttribute("to", contact.getJid());
1317		packet.setAttribute("from", contact.getAccount().getJid());
1318		Log.d(LOGTAG, packet.toString());
1319		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1320	}
1321
1322	public void stopPresenceUpdatesTo(Contact contact) {
1323		// Canceling a Subscription type=unsubscribed
1324		PresencePacket packet = new PresencePacket();
1325		packet.setAttribute("type", "unsubscribed");
1326		packet.setAttribute("to", contact.getJid());
1327		packet.setAttribute("from", contact.getAccount().getJid());
1328		Log.d(LOGTAG, packet.toString());
1329		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1330	}
1331
1332	public void sendPresenceUpdatesTo(Contact contact) {
1333		// type='subscribed'
1334		PresencePacket packet = new PresencePacket();
1335		packet.setAttribute("type", "subscribed");
1336		packet.setAttribute("to", contact.getJid());
1337		packet.setAttribute("from", contact.getAccount().getJid());
1338		Log.d(LOGTAG, packet.toString());
1339		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1340	}
1341
1342	public void sendPgpPresence(Account account, String signature) {
1343		PresencePacket packet = new PresencePacket();
1344		packet.setAttribute("from", account.getFullJid());
1345		Element status = new Element("status");
1346		status.setContent("online");
1347		packet.addChild(status);
1348		Element x = new Element("x");
1349		x.setAttribute("xmlns", "jabber:x:signed");
1350		x.setContent(signature);
1351		packet.addChild(x);
1352		account.getXmppConnection().sendPresencePacket(packet);
1353	}
1354
1355	public void updateConversation(Conversation conversation) {
1356		this.databaseBackend.updateConversation(conversation);
1357	}
1358
1359	public Contact findContact(String uuid) {
1360		Contact contact = this.databaseBackend.getContact(uuid);
1361		if (contact != null) {
1362			for (Account account : getAccounts()) {
1363				if (contact.getAccountUuid().equals(account.getUuid())) {
1364					contact.setAccount(account);
1365				}
1366			}
1367		}
1368		return contact;
1369	}
1370
1371	public void removeOnTLSExceptionReceivedListener() {
1372		this.tlsException = null;
1373	}
1374
1375	// TODO dont let thread sleep but schedule wake up
1376	public void reconnectAccount(final Account account, final boolean force) {
1377		new Thread(new Runnable() {
1378
1379			@Override
1380			public void run() {
1381				if (account.getXmppConnection() != null) {
1382					disconnect(account, force);
1383				}
1384				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1385					if (account.getXmppConnection() == null) {
1386						account.setXmppConnection(createConnection(account));
1387					}
1388					Thread thread = new Thread(account.getXmppConnection());
1389					thread.start();
1390					scheduleWakeupCall((int) (CONNECT_TIMEOUT * 1.2), false);
1391				}
1392			}
1393		}).start();
1394	}
1395
1396	public void updateConversationInGui() {
1397		if (convChangedListener != null) {
1398			convChangedListener.onConversationListChanged();
1399		}
1400	}
1401
1402	public void sendConversationSubject(Conversation conversation,
1403			String subject) {
1404		MessagePacket packet = new MessagePacket();
1405		packet.setType(MessagePacket.TYPE_GROUPCHAT);
1406		packet.setTo(conversation.getContactJid().split("/")[0]);
1407		Element subjectChild = new Element("subject");
1408		subjectChild.setContent(subject);
1409		packet.addChild(subjectChild);
1410		packet.setFrom(conversation.getAccount().getJid());
1411		Account account = conversation.getAccount();
1412		if (account.getStatus() == Account.STATUS_ONLINE) {
1413			account.getXmppConnection().sendMessagePacket(packet);
1414		}
1415	}
1416
1417	public void inviteToConference(Conversation conversation,
1418			List<Contact> contacts) {
1419		for (Contact contact : contacts) {
1420			MessagePacket packet = new MessagePacket();
1421			packet.setTo(conversation.getContactJid().split("/")[0]);
1422			packet.setFrom(conversation.getAccount().getFullJid());
1423			Element x = new Element("x");
1424			x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
1425			Element invite = new Element("invite");
1426			invite.setAttribute("to", contact.getJid());
1427			x.addChild(invite);
1428			packet.addChild(x);
1429			Log.d(LOGTAG, packet.toString());
1430			conversation.getAccount().getXmppConnection()
1431					.sendMessagePacket(packet);
1432		}
1433
1434	}
1435
1436	public boolean markMessage(Account account, String recipient, String uuid,
1437			int status) {
1438		boolean marked = false;
1439		for (Conversation conversation : getConversations()) {
1440			if (conversation.getContactJid().equals(recipient)
1441					&& conversation.getAccount().equals(account)) {
1442				for (Message message : conversation.getMessages()) {
1443					if (message.getUuid().equals(uuid)) {
1444						markMessage(message, status);
1445						marked = true;
1446						break;
1447					}
1448				}
1449				break;
1450			}
1451		}
1452		return marked;
1453	}
1454
1455	public void markMessage(Message message, int status) {
1456		message.setStatus(status);
1457		databaseBackend.updateMessage(message);
1458		if (convChangedListener != null) {
1459			convChangedListener.onConversationListChanged();
1460		}
1461	}
1462
1463	public SharedPreferences getPreferences() {
1464		return PreferenceManager
1465				.getDefaultSharedPreferences(getApplicationContext());
1466	}
1467}