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.JingleFile;
  51import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
  52import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
  53import eu.siacs.conversations.xmpp.stanzas.IqPacket;
  54import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
  55import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
  56import android.app.AlarmManager;
  57import android.app.PendingIntent;
  58import android.app.Service;
  59import android.content.Context;
  60import android.content.Intent;
  61import android.content.SharedPreferences;
  62import android.database.ContentObserver;
  63import android.database.DatabaseUtils;
  64import android.net.ConnectivityManager;
  65import android.net.NetworkInfo;
  66import android.net.Uri;
  67import android.os.Binder;
  68import android.os.Bundle;
  69import android.os.IBinder;
  70import android.os.PowerManager;
  71import android.os.PowerManager.WakeLock;
  72import android.os.SystemClock;
  73import android.preference.PreferenceManager;
  74import android.provider.ContactsContract;
  75import android.util.Log;
  76
  77public class XmppConnectionService extends Service {
  78
  79	protected static final String LOGTAG = "xmppService";
  80	public DatabaseBackend databaseBackend;
  81	private FileBackend fileBackend;
  82
  83	public long startDate;
  84
  85	private static final int PING_MAX_INTERVAL = 300;
  86	private static final int PING_MIN_INTERVAL = 10;
  87	private static final int PING_TIMEOUT = 5;
  88	private static final int CONNECT_TIMEOUT = 60;
  89	private static final long CARBON_GRACE_PERIOD = 60000L;
  90
  91	private List<Account> accounts;
  92	private List<Conversation> conversations = null;
  93	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
  94			this);
  95
  96	private OnConversationListChangedListener convChangedListener = null;
  97	private int convChangedListenerCount = 0;
  98	private OnAccountListChangedListener accountChangedListener = null;
  99	private OnTLSExceptionReceived tlsException = null;
 100
 101	public void setOnTLSExceptionReceivedListener(
 102			OnTLSExceptionReceived listener) {
 103		tlsException = listener;
 104	}
 105
 106	private Random mRandom = new Random(System.currentTimeMillis());
 107
 108	private long lastCarbonMessageReceived = -CARBON_GRACE_PERIOD;
 109
 110	private ContentObserver contactObserver = new ContentObserver(null) {
 111		@Override
 112		public void onChange(boolean selfChange) {
 113			super.onChange(selfChange);
 114			Log.d(LOGTAG, "contact list has changed");
 115			mergePhoneContactsWithRoster(null);
 116		}
 117	};
 118
 119	private XmppConnectionService service = this;
 120
 121	private final IBinder mBinder = new XmppConnectionBinder();
 122	private OnMessagePacketReceived messageListener = new OnMessagePacketReceived() {
 123
 124		@Override
 125		public void onMessagePacketReceived(Account account,
 126				MessagePacket packet) {
 127			Message message = null;
 128			boolean notify = true;
 129			if (getPreferences().getBoolean(
 130					"notification_grace_period_after_carbon_received", true)) {
 131				notify = (SystemClock.elapsedRealtime() - lastCarbonMessageReceived) > CARBON_GRACE_PERIOD;
 132			}
 133
 134			if ((packet.getType() == MessagePacket.TYPE_CHAT)) {
 135				String pgpBody = MessageParser.getPgpBody(packet);
 136				if (pgpBody != null) {
 137					message = MessageParser.parsePgpChat(pgpBody, packet,
 138							account, service);
 139					message.markUnread();
 140				} else if ((packet.getBody() != null)
 141						&& (packet.getBody().startsWith("?OTR"))) {
 142					message = MessageParser.parseOtrChat(packet, account,
 143							service);
 144					if (message != null) {
 145						message.markUnread();
 146					}
 147				} else if (packet.hasChild("body")) {
 148					message = MessageParser.parsePlainTextChat(packet, account,
 149							service);
 150					message.markUnread();
 151				} else if (packet.hasChild("received")
 152						|| (packet.hasChild("sent"))) {
 153					message = MessageParser.parseCarbonMessage(packet, account,
 154							service);
 155					if (message != null) {
 156						if (message.getStatus() == Message.STATUS_SEND) {
 157							lastCarbonMessageReceived = SystemClock
 158									.elapsedRealtime();
 159							notify = false;
 160							message.getConversation().markRead();
 161						} else {
 162							message.markUnread();
 163						}
 164					}
 165				}
 166
 167			} else if (packet.getType() == MessagePacket.TYPE_GROUPCHAT) {
 168				message = MessageParser
 169						.parseGroupchat(packet, account, service);
 170				if (message != null) {
 171					if (message.getStatus() == Message.STATUS_RECIEVED) {
 172						message.markUnread();
 173					} else {
 174						message.getConversation().markRead();
 175						notify = false;
 176					}
 177				}
 178			} else if (packet.getType() == MessagePacket.TYPE_ERROR) {
 179				MessageParser.parseError(packet, account, service);
 180				return;
 181			} else if (packet.getType() == MessagePacket.TYPE_NORMAL) {
 182				if (packet.hasChild("x")) {
 183					Element x = packet.findChild("x");
 184					if (x.hasChild("invite")) {
 185						findOrCreateConversation(account, packet.getFrom(),
 186								true);
 187						if (convChangedListener != null) {
 188							convChangedListener.onConversationListChanged();
 189						}
 190						Log.d(LOGTAG,
 191								"invitation received to " + packet.getFrom());
 192					}
 193
 194				} else {
 195					// Log.d(LOGTAG, "unparsed message " + packet.toString());
 196				}
 197			}
 198			if ((message == null) || (message.getBody() == null)) {
 199				return;
 200			}
 201			if (packet.hasChild("delay")) {
 202				try {
 203					String stamp = packet.findChild("delay").getAttribute(
 204							"stamp");
 205					stamp = stamp.replace("Z", "+0000");
 206					Date date = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ")
 207							.parse(stamp);
 208					message.setTime(date.getTime());
 209				} catch (ParseException e) {
 210					Log.d(LOGTAG, "error trying to parse date" + e.getMessage());
 211				}
 212			}
 213			Conversation conversation = message.getConversation();
 214			conversation.getMessages().add(message);
 215			if (packet.getType() != MessagePacket.TYPE_ERROR) {
 216				databaseBackend.createMessage(message);
 217			}
 218			if (convChangedListener != null) {
 219				convChangedListener.onConversationListChanged();
 220			} else {
 221				UIHelper.updateNotification(getApplicationContext(),
 222						getConversations(), message.getConversation(), notify);
 223			}
 224		}
 225	};
 226	private OnStatusChanged statusListener = new OnStatusChanged() {
 227
 228		@Override
 229		public void onStatusChanged(Account account) {
 230			if (accountChangedListener != null) {
 231				accountChangedListener.onAccountListChangedListener();
 232			}
 233			if (account.getStatus() == Account.STATUS_ONLINE) {
 234				List<Conversation> conversations = getConversations();
 235				for (int i = 0; i < conversations.size(); ++i) {
 236					if (conversations.get(i).getAccount() == account) {
 237						sendUnsendMessages(conversations.get(i));
 238					}
 239				}
 240				scheduleWakeupCall(PING_MAX_INTERVAL, true);
 241			} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 242				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 243					int timeToReconnect = mRandom.nextInt(50) + 10;
 244					scheduleWakeupCall(timeToReconnect, false);
 245				}
 246
 247			} else if (account.getStatus() == Account.STATUS_REGISTRATION_SUCCESSFULL) {
 248				databaseBackend.updateAccount(account);
 249				reconnectAccount(account, true);
 250			} else {
 251				UIHelper.showErrorNotification(getApplicationContext(),
 252						getAccounts());
 253			}
 254		}
 255	};
 256
 257	private OnPresencePacketReceived presenceListener = new OnPresencePacketReceived() {
 258
 259		@Override
 260		public void onPresencePacketReceived(final Account account,
 261				PresencePacket packet) {
 262			if (packet.hasChild("x", "http://jabber.org/protocol/muc#user")) {
 263				Conversation muc = findMuc(
 264						packet.getAttribute("from").split("/")[0], account);
 265				if (muc != null) {
 266					muc.getMucOptions().processPacket(packet);
 267				} else {
 268					Log.d(LOGTAG, account.getJid()
 269							+ ": could not find muc for received muc package "
 270							+ packet.toString());
 271				}
 272			} else if (packet.hasChild("x", "http://jabber.org/protocol/muc")) {
 273				Conversation muc = findMuc(
 274						packet.getAttribute("from").split("/")[0], account);
 275				if (muc != null) {
 276					Log.d(LOGTAG,
 277							account.getJid() + ": reading muc status packet "
 278									+ packet.toString());
 279					int error = muc.getMucOptions().getError();
 280					muc.getMucOptions().processPacket(packet);
 281					if ((muc.getMucOptions().getError() != error)
 282							&& (convChangedListener != null)) {
 283						Log.d(LOGTAG, "muc error status changed");
 284						convChangedListener.onConversationListChanged();
 285					}
 286				}
 287			} else {
 288				String[] fromParts = packet.getAttribute("from").split("/");
 289				String type = packet.getAttribute("type");
 290				if (fromParts[0].equals(account.getJid())) {
 291					if (fromParts.length == 2) {
 292						if (type == null) {
 293							account.updatePresence(fromParts[1], Presences
 294									.parseShow(packet.findChild("show")));
 295						} else if (type.equals("unavailable")) {
 296							account.removePresence(fromParts[1]);
 297						}
 298					}
 299
 300				} else {
 301					Contact contact = findContact(account, fromParts[0]);
 302					if (contact == null) {
 303						if ("subscribe".equals(type)) {
 304							account.getXmppConnection().addPendingSubscription(
 305									fromParts[0]);
 306						} else {
 307							// Log.d(LOGTAG,packet.getFrom()+
 308							// " could not be found");
 309						}
 310						return;
 311					}
 312					if (type == null) {
 313						if (fromParts.length == 2) {
 314							contact.updatePresence(fromParts[1], Presences
 315									.parseShow(packet.findChild("show")));
 316							PgpEngine pgp = getPgpEngine();
 317							if (pgp != null) {
 318								Element x = packet.findChild("x",
 319										"jabber:x:signed");
 320								if (x != null) {
 321									Element status = packet.findChild("status");
 322									String msg;
 323									if (status != null) {
 324										msg = status.getContent();
 325									} else {
 326										msg = "";
 327									}
 328									contact.setPgpKeyId(pgp.fetchKeyId(account,msg,x.getContent()));
 329									Log.d("xmppService",account.getJid()+": fetched key id for "+contact.getJid()+" was:"+contact.getPgpKeyId());
 330								}
 331							}
 332							replaceContactInConversation(account,
 333									contact.getJid(), contact);
 334								databaseBackend.updateContact(contact, true);
 335						} else {
 336							// Log.d(LOGTAG,"presence without resource "+packet.toString());
 337						}
 338					} else if (type.equals("unavailable")) {
 339						if (fromParts.length != 2) {
 340							contact.clearPresences();
 341						} else {
 342							contact.removePresence(fromParts[1]);
 343						}
 344						replaceContactInConversation(account, contact.getJid(),
 345								contact);
 346						databaseBackend.updateContact(contact, true);
 347					} else if (type.equals("subscribe")) {
 348						Log.d(LOGTAG, "received subscribe packet from "
 349								+ packet.getFrom());
 350						if (contact
 351								.getSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT)) {
 352							Log.d(LOGTAG, "preemptive grant; granting");
 353							sendPresenceUpdatesTo(contact);
 354							contact.setSubscriptionOption(Contact.Subscription.FROM);
 355							contact.resetSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
 356							replaceContactInConversation(account,
 357									contact.getJid(), contact);
 358							databaseBackend.updateContact(contact, false);
 359							if ((contact
 360									.getSubscriptionOption(Contact.Subscription.ASKING))
 361									&& (!contact
 362											.getSubscriptionOption(Contact.Subscription.TO))) {
 363								requestPresenceUpdatesFrom(contact);
 364							}
 365						} else {
 366							account.getXmppConnection().addPendingSubscription(
 367									fromParts[0]);
 368						}
 369					} else {
 370						// Log.d(LOGTAG, packet.toString());
 371					}
 372				}
 373			}
 374		}
 375	};
 376
 377	private OnIqPacketReceived unknownIqListener = new OnIqPacketReceived() {
 378
 379		@Override
 380		public void onIqPacketReceived(Account account, IqPacket packet) {
 381			if (packet.hasChild("query","jabber:iq:roster")) {
 382				String from = packet.getFrom();
 383				if ((from==null)||(from.equals(account.getJid()))) {
 384					Element query = packet.findChild("query");
 385					processRosterItems(account, query);
 386					mergePhoneContactsWithRoster(null);
 387				} else {
 388					Log.d(LOGTAG,"unauthorized roster push from: "+from);
 389				}
 390			} else if (packet
 391					.hasChild("open", "http://jabber.org/protocol/ibb")
 392					|| packet
 393							.hasChild("data", "http://jabber.org/protocol/ibb")) {
 394				XmppConnectionService.this.mJingleConnectionManager
 395						.deliverIbbPacket(account, packet);
 396			} else if (packet.hasChild("query","http://jabber.org/protocol/disco#info")) {
 397				IqPacket iqResponse = packet.generateRespone(IqPacket.TYPE_RESULT);
 398				Element query = iqResponse.addChild("query", "http://jabber.org/protocol/disco#info");
 399				query.addChild("feature").setAttribute("var", "urn:xmpp:jingle:1");
 400				query.addChild("feature").setAttribute("var", "urn:xmpp:jingle:apps:file-transfer:3");
 401				query.addChild("feature").setAttribute("var", "urn:xmpp:jingle:transports:s5b:1");
 402				query.addChild("feature").setAttribute("var", "urn:xmpp:jingle:transports:ibb:1");
 403				account.getXmppConnection().sendIqPacket(iqResponse, null);
 404			} else {
 405				if ((packet.getType() == IqPacket.TYPE_GET)||(packet.getType() == IqPacket.TYPE_SET)) {
 406					IqPacket response = packet.generateRespone(IqPacket.TYPE_ERROR);
 407					Element error = response.addChild("error");
 408					error.setAttribute("type","cancel");
 409					error.addChild("feature-not-implemented","urn:ietf:params:xml:ns:xmpp-stanzas");
 410					account.getXmppConnection().sendIqPacket(response, null);
 411				}
 412			}
 413		}
 414	};
 415
 416	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 417
 418		@Override
 419		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 420			mJingleConnectionManager.deliverPacket(account, packet);
 421		}
 422	};
 423
 424	private OpenPgpServiceConnection pgpServiceConnection;
 425	private PgpEngine mPgpEngine = null;
 426	private Intent pingIntent;
 427	private PendingIntent pendingPingIntent = null;
 428	private WakeLock wakeLock;
 429	private PowerManager pm;
 430
 431	public PgpEngine getPgpEngine() {
 432		if (pgpServiceConnection.isBound()) {
 433			if (this.mPgpEngine == null) {
 434				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 435						getApplicationContext(),
 436						pgpServiceConnection.getService()),this);
 437			}
 438			return mPgpEngine;
 439		} else {
 440			return null;
 441		}
 442
 443	}
 444
 445	public FileBackend getFileBackend() {
 446		return this.fileBackend;
 447	}
 448
 449	public Message attachImageToConversation(final Conversation conversation,
 450			final String presence, final Uri uri) {
 451		final Message message = new Message(conversation, "",Message.ENCRYPTION_NONE);
 452		message.setPresence(presence);
 453		message.setType(Message.TYPE_IMAGE);
 454		message.setStatus(Message.STATUS_OFFERED);
 455		new Thread(new Runnable() {
 456
 457			@Override
 458			public void run() {
 459				getFileBackend().copyImageToPrivateStorage(message, uri);
 460				databaseBackend.createMessage(message);
 461				conversation.getMessages().add(message);
 462				if (convChangedListener != null) {
 463					convChangedListener.onConversationListChanged();
 464				}
 465				sendMessage(message, null);
 466			}
 467		}).start();
 468		return message;
 469	}
 470	
 471	public Message attachEncryptedImageToConversation(final Conversation conversation, final String presence, final Uri uri, final OnPgpEngineResult callback) {
 472		Log.d(LOGTAG,"attach encrypted image");
 473		final Message message = new Message(conversation, "",Message.ENCRYPTION_DECRYPTED);
 474		message.setPresence(presence);
 475		message.setType(Message.TYPE_IMAGE);
 476		message.setStatus(Message.STATUS_OFFERED);
 477		new Thread(new Runnable() {
 478
 479			@Override
 480			public void run() {
 481				getFileBackend().copyImageToPrivateStorage(message, uri);
 482				getPgpEngine().encrypt(message, callback);
 483			}
 484		}).start();
 485		return message;
 486	}
 487
 488	protected Conversation findMuc(String name, Account account) {
 489		for (Conversation conversation : this.conversations) {
 490			if (conversation.getContactJid().split("/")[0].equals(name)
 491					&& (conversation.getAccount() == account)) {
 492				return conversation;
 493			}
 494		}
 495		return null;
 496	}
 497
 498	private void processRosterItems(Account account, Element elements) {
 499		String version = elements.getAttribute("ver");
 500		if (version != null) {
 501			account.setRosterVersion(version);
 502			databaseBackend.updateAccount(account);
 503		}
 504		for (Element item : elements.getChildren()) {
 505			if (item.getName().equals("item")) {
 506				String jid = item.getAttribute("jid");
 507				String subscription = item.getAttribute("subscription");
 508				Contact contact = databaseBackend.findContact(account, jid);
 509				if (contact == null) {
 510					if (!subscription.equals("remove")) {
 511						String name = item.getAttribute("name");
 512						if (name == null) {
 513							name = jid.split("@")[0];
 514						}
 515						contact = new Contact(account, name, jid, null);
 516						contact.parseSubscriptionFromElement(item);
 517						databaseBackend.createContact(contact);
 518					}
 519				} else {
 520					if (subscription.equals("remove")) {
 521						databaseBackend.deleteContact(contact);
 522						replaceContactInConversation(account, contact.getJid(),
 523								null);
 524					} else {
 525						contact.parseSubscriptionFromElement(item);
 526						databaseBackend.updateContact(contact, false);
 527						replaceContactInConversation(account, contact.getJid(),
 528								contact);
 529					}
 530				}
 531			}
 532		}
 533	}
 534
 535	private void replaceContactInConversation(Account account, String jid,
 536			Contact contact) {
 537		List<Conversation> conversations = getConversations();
 538		for (Conversation c : conversations) {
 539			if (c.getContactJid().equals(jid) && (c.getAccount() == account)) {
 540				c.setContact(contact);
 541				break;
 542			}
 543		}
 544	}
 545
 546	public class XmppConnectionBinder extends Binder {
 547		public XmppConnectionService getService() {
 548			return XmppConnectionService.this;
 549		}
 550	}
 551
 552	@Override
 553	public int onStartCommand(Intent intent, int flags, int startId) {
 554		this.wakeLock.acquire();
 555		// Log.d(LOGTAG,"calling start service. caller was:"+intent.getAction());
 556		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 557				.getSystemService(Context.CONNECTIVITY_SERVICE);
 558		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 559		boolean isConnected = activeNetwork != null
 560				&& activeNetwork.isConnected();
 561
 562		for (Account account : accounts) {
 563			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 564				if (!isConnected) {
 565					account.setStatus(Account.STATUS_NO_INTERNET);
 566					if (statusListener != null) {
 567						statusListener.onStatusChanged(account);
 568					}
 569				} else {
 570					if (account.getStatus() == Account.STATUS_NO_INTERNET) {
 571						account.setStatus(Account.STATUS_OFFLINE);
 572						if (statusListener != null) {
 573							statusListener.onStatusChanged(account);
 574						}
 575					}
 576
 577					// TODO 3 remaining cases
 578					if (account.getStatus() == Account.STATUS_ONLINE) {
 579						long lastReceived = account.getXmppConnection().lastPaketReceived;
 580						long lastSent = account.getXmppConnection().lastPingSent;
 581						if (lastSent - lastReceived >= PING_TIMEOUT * 1000) {
 582							Log.d(LOGTAG, account.getJid() + ": ping timeout");
 583							this.reconnectAccount(account, true);
 584						} else if (SystemClock.elapsedRealtime() - lastReceived >= PING_MIN_INTERVAL * 1000) {
 585							account.getXmppConnection().sendPing();
 586							account.getXmppConnection().lastPingSent = SystemClock
 587									.elapsedRealtime();
 588							this.scheduleWakeupCall(2, false);
 589						}
 590					} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 591						if (account.getXmppConnection() == null) {
 592							account.setXmppConnection(this
 593									.createConnection(account));
 594						}
 595						account.getXmppConnection().lastPingSent = SystemClock
 596								.elapsedRealtime();
 597						new Thread(account.getXmppConnection()).start();
 598					} else if ((account.getStatus() == Account.STATUS_CONNECTING)
 599							&& ((SystemClock.elapsedRealtime() - account
 600									.getXmppConnection().lastConnect) / 1000 >= CONNECT_TIMEOUT)) {
 601						Log.d(LOGTAG, account.getJid()
 602								+ ": time out during connect reconnecting");
 603						reconnectAccount(account, true);
 604					} else {
 605						Log.d(LOGTAG,
 606								"seconds since last connect:"
 607										+ ((SystemClock.elapsedRealtime() - account
 608												.getXmppConnection().lastConnect) / 1000));
 609						Log.d(LOGTAG,
 610								account.getJid() + ": status="
 611										+ account.getStatus());
 612						// TODO notify user of ssl cert problem or auth problem
 613						// or what ever
 614					}
 615					// in any case. reschedule wakup call
 616					this.scheduleWakeupCall(PING_MAX_INTERVAL, true);
 617				}
 618				if (accountChangedListener != null) {
 619					accountChangedListener.onAccountListChangedListener();
 620				}
 621			}
 622		}
 623		if (wakeLock.isHeld()) {
 624			wakeLock.release();
 625		}
 626		return START_STICKY;
 627	}
 628
 629	@Override
 630	public void onCreate() {
 631		ExceptionHelper.init(getApplicationContext());
 632		this.databaseBackend = DatabaseBackend
 633				.getInstance(getApplicationContext());
 634		this.fileBackend = new FileBackend(getApplicationContext());
 635		this.accounts = databaseBackend.getAccounts();
 636
 637		this.getConversations();
 638
 639		getContentResolver().registerContentObserver(
 640				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 641		this.pgpServiceConnection = new OpenPgpServiceConnection(
 642				getApplicationContext(), "org.sufficientlysecure.keychain");
 643		this.pgpServiceConnection.bindToService();
 644
 645		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 646		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
 647				"XmppConnectionService");
 648	}
 649
 650	@Override
 651	public void onDestroy() {
 652		Log.d(LOGTAG,"stopping service");
 653		super.onDestroy();
 654		for (Account account : accounts) {
 655			if (account.getXmppConnection() != null) {
 656				disconnect(account, true);
 657			}
 658		}
 659	}
 660
 661	protected void scheduleWakeupCall(int seconds, boolean ping) {
 662		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 663		Context context = getApplicationContext();
 664		AlarmManager alarmManager = (AlarmManager) context
 665				.getSystemService(Context.ALARM_SERVICE);
 666
 667		if (ping) {
 668			if (this.pingIntent == null) {
 669				this.pingIntent = new Intent(context, EventReceiver.class);
 670				this.pingIntent.setAction("ping");
 671				this.pingIntent.putExtra("time", timeToWake);
 672				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 673						this.pingIntent, 0);
 674				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 675						timeToWake, pendingPingIntent);
 676				// Log.d(LOGTAG,"schedule ping in "+seconds+" seconds");
 677			} else {
 678				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
 679				if (scheduledTime < SystemClock.elapsedRealtime()
 680						|| (scheduledTime > timeToWake)) {
 681					this.pingIntent.putExtra("time", timeToWake);
 682					alarmManager.cancel(this.pendingPingIntent);
 683					this.pendingPingIntent = PendingIntent.getBroadcast(
 684							context, 0, this.pingIntent, 0);
 685					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 686							timeToWake, pendingPingIntent);
 687					// Log.d(LOGTAG,"reschedule old ping to ping in "+seconds+" seconds");
 688				}
 689			}
 690		} else {
 691			Intent intent = new Intent(context, EventReceiver.class);
 692			intent.setAction("ping_check");
 693			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 694					intent, 0);
 695			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 696					alarmIntent);
 697		}
 698
 699	}
 700
 701	public XmppConnection createConnection(Account account) {
 702		SharedPreferences sharedPref = getPreferences();
 703		account.setResource(sharedPref.getString("resource", "mobile")
 704				.toLowerCase(Locale.getDefault()));
 705		XmppConnection connection = new XmppConnection(account, this.pm);
 706		connection.setOnMessagePacketReceivedListener(this.messageListener);
 707		connection.setOnStatusChangedListener(this.statusListener);
 708		connection.setOnPresencePacketReceivedListener(this.presenceListener);
 709		connection
 710				.setOnUnregisteredIqPacketReceivedListener(this.unknownIqListener);
 711		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 712		connection
 713				.setOnTLSExceptionReceivedListener(new OnTLSExceptionReceived() {
 714
 715					@Override
 716					public void onTLSExceptionReceived(String fingerprint,
 717							Account account) {
 718						Log.d(LOGTAG, "tls exception arrived in service");
 719						if (tlsException != null) {
 720							tlsException.onTLSExceptionReceived(fingerprint,
 721									account);
 722						}
 723					}
 724				});
 725		connection.setOnBindListener(new OnBindListener() {
 726
 727			@Override
 728			public void onBind(Account account) {
 729				databaseBackend.clearPresences(account);
 730				account.clearPresences(); // self presences
 731				if (account.getXmppConnection().hasFeatureRosterManagment()) {
 732					updateRoster(account, null);
 733				}
 734				connectMultiModeConversations(account);
 735				if (convChangedListener != null) {
 736					convChangedListener.onConversationListChanged();
 737				}
 738			}
 739		});
 740		return connection;
 741	}
 742
 743	synchronized public void sendMessage(Message message, String presence) {
 744		Account account = message.getConversation().getAccount();
 745		Conversation conv = message.getConversation();
 746		MessagePacket packet = null;
 747		boolean saveInDb = false;
 748		boolean addToConversation = false;
 749		boolean send = false;
 750		if (account.getStatus() == Account.STATUS_ONLINE) {
 751			if (message.getType() == Message.TYPE_IMAGE) {
 752				mJingleConnectionManager.createNewConnection(message);
 753			} else {
 754				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 755					if (!conv.hasValidOtrSession()) {
 756						// starting otr session. messages will be send later
 757						conv.startOtrSession(getApplicationContext(), presence,
 758								true);
 759					} else if (conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 760						// otr session aleary exists, creating message packet
 761						// accordingly
 762						packet = prepareMessagePacket(account, message,
 763								conv.getOtrSession());
 764						send = true;
 765						message.setStatus(Message.STATUS_SEND);
 766					}
 767					saveInDb = true;
 768					addToConversation = true;
 769				} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 770					message.getConversation().endOtrIfNeeded();
 771					packet = new MessagePacket();
 772					packet.setType(MessagePacket.TYPE_CHAT);
 773					packet.setFrom(message.getConversation().getAccount()
 774							.getFullJid());
 775					packet.setTo(message.getCounterpart());
 776					packet.setBody("This is an XEP-0027 encryted message");
 777					packet.addChild("x", "jabber:x:encrypted").setContent(
 778							message.getEncryptedBody());
 779					message.setStatus(Message.STATUS_SEND);
 780					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 781					saveInDb = true;
 782					addToConversation = true;
 783					send = true;
 784				} else {
 785					message.getConversation().endOtrIfNeeded();
 786					// don't encrypt
 787					if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 788						message.setStatus(Message.STATUS_SEND);
 789						saveInDb = true;
 790						addToConversation = true;
 791					}
 792					packet = prepareMessagePacket(account, message, null);
 793					send = true;
 794				}
 795			}
 796		} else {
 797			// account is offline
 798			saveInDb = true;
 799			addToConversation = true;
 800
 801		}
 802		if (saveInDb) {
 803			databaseBackend.createMessage(message);
 804		}
 805		if (addToConversation) {
 806			conv.getMessages().add(message);
 807			if (convChangedListener != null) {
 808				convChangedListener.onConversationListChanged();
 809			}
 810		}
 811		if ((send) && (packet != null)) {
 812			account.getXmppConnection().sendMessagePacket(packet);
 813		}
 814
 815	}
 816
 817	private void sendUnsendMessages(Conversation conversation) {
 818		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 819			if ((conversation.getMessages().get(i).getStatus() == Message.STATUS_UNSEND)
 820					&& (conversation.getMessages().get(i).getEncryption() == Message.ENCRYPTION_NONE)) {
 821				Message message = conversation.getMessages().get(i);
 822				MessagePacket packet = prepareMessagePacket(
 823						conversation.getAccount(), message, null);
 824				conversation.getAccount().getXmppConnection()
 825						.sendMessagePacket(packet);
 826				message.setStatus(Message.STATUS_SEND);
 827				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 828					databaseBackend.updateMessage(message);
 829				} else {
 830					databaseBackend.deleteMessage(message);
 831					conversation.getMessages().remove(i);
 832					i--;
 833				}
 834			}
 835		}
 836	}
 837
 838	public MessagePacket prepareMessagePacket(Account account, Message message,
 839			Session otrSession) {
 840		MessagePacket packet = new MessagePacket();
 841		if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 842			packet.setType(MessagePacket.TYPE_CHAT);
 843			if (otrSession != null) {
 844				try {
 845					packet.setBody(otrSession.transformSending(message
 846							.getBody()));
 847				} catch (OtrException e) {
 848					Log.d(LOGTAG,
 849							account.getJid()
 850									+ ": could not encrypt message to "
 851									+ message.getCounterpart());
 852				}
 853				packet.addChild("private", "urn:xmpp:carbons:2");
 854				packet.addChild("no-copy", "urn:xmpp:hints");
 855				packet.setTo(otrSession.getSessionID().getAccountID() + "/"
 856						+ otrSession.getSessionID().getUserID());
 857				packet.setFrom(account.getFullJid());
 858			} else {
 859				packet.setBody(message.getBody());
 860				packet.setTo(message.getCounterpart());
 861				packet.setFrom(account.getJid());
 862			}
 863		} else if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 864			packet.setType(MessagePacket.TYPE_GROUPCHAT);
 865			packet.setBody(message.getBody());
 866			packet.setTo(message.getCounterpart().split("/")[0]);
 867			packet.setFrom(account.getJid());
 868		}
 869		packet.setId(message.getUuid());
 870		return packet;
 871	}
 872
 873	private void getRoster(Account account,
 874			final OnRosterFetchedListener listener) {
 875		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 876		for (int i = 0; i < contacts.size(); ++i) {
 877			contacts.get(i).setAccount(account);
 878		}
 879		if (listener != null) {
 880			listener.onRosterFetched(contacts);
 881		}
 882	}
 883
 884	public List<Contact> getRoster(Account account) {
 885		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 886		for (int i = 0; i < contacts.size(); ++i) {
 887			contacts.get(i).setAccount(account);
 888		}
 889		return contacts;
 890	}
 891
 892	public void updateRoster(final Account account,
 893			final OnRosterFetchedListener listener) {
 894		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 895		if (!"".equals(account.getRosterVersion())) {
 896			Log.d(LOGTAG, account.getJid() + ": fetching roster version "
 897					+ account.getRosterVersion());
 898		} else {
 899			Log.d(LOGTAG, account.getJid() + ": fetching roster");
 900		}
 901		iqPacket.query("jabber:iq:roster").setAttribute("ver",
 902				account.getRosterVersion());
 903		account.getXmppConnection().sendIqPacket(iqPacket,
 904				new OnIqPacketReceived() {
 905
 906					@Override
 907					public void onIqPacketReceived(final Account account,
 908							IqPacket packet) {
 909						Element roster = packet.findChild("query");
 910						if (roster != null) {
 911							Log.d(LOGTAG, account.getJid()
 912									+ ": processing roster");
 913							processRosterItems(account, roster);
 914							StringBuilder mWhere = new StringBuilder();
 915							mWhere.append("jid NOT IN(");
 916							List<Element> items = roster.getChildren();
 917							for (int i = 0; i < items.size(); ++i) {
 918								mWhere.append(DatabaseUtils
 919										.sqlEscapeString(items.get(i)
 920												.getAttribute("jid")));
 921								if (i != items.size() - 1) {
 922									mWhere.append(",");
 923								}
 924							}
 925							mWhere.append(") and accountUuid = \"");
 926							mWhere.append(account.getUuid());
 927							mWhere.append("\"");
 928							List<Contact> contactsToDelete = databaseBackend
 929									.getContacts(mWhere.toString());
 930							for (Contact contact : contactsToDelete) {
 931								databaseBackend.deleteContact(contact);
 932								replaceContactInConversation(account,
 933										contact.getJid(), null);
 934							}
 935
 936						} else {
 937							Log.d(LOGTAG, account.getJid()
 938									+ ": empty roster returend");
 939						}
 940						mergePhoneContactsWithRoster(new OnPhoneContactsMerged() {
 941
 942							@Override
 943							public void phoneContactsMerged() {
 944								if (listener != null) {
 945									getRoster(account, listener);
 946								}
 947							}
 948						});
 949					}
 950				});
 951	}
 952
 953	public void mergePhoneContactsWithRoster(
 954			final OnPhoneContactsMerged listener) {
 955		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 956				new OnPhoneContactsLoadedListener() {
 957					@Override
 958					public void onPhoneContactsLoaded(
 959							Hashtable<String, Bundle> phoneContacts) {
 960						List<Contact> contacts = databaseBackend
 961								.getContactsByAccount(null);
 962						for (int i = 0; i < contacts.size(); ++i) {
 963							Contact contact = contacts.get(i);
 964							if (phoneContacts.containsKey(contact.getJid())) {
 965								Bundle phoneContact = phoneContacts.get(contact
 966										.getJid());
 967								String systemAccount = phoneContact
 968										.getInt("phoneid")
 969										+ "#"
 970										+ phoneContact.getString("lookup");
 971								contact.setSystemAccount(systemAccount);
 972								contact.setPhotoUri(phoneContact
 973										.getString("photouri"));
 974								contact.setDisplayName(phoneContact
 975										.getString("displayname"));
 976								databaseBackend.updateContact(contact, false);
 977								replaceContactInConversation(
 978										contact.getAccount(), contact.getJid(),
 979										contact);
 980							} else {
 981								if ((contact.getSystemAccount() != null)
 982										|| (contact.getProfilePhoto() != null)) {
 983									contact.setSystemAccount(null);
 984									contact.setPhotoUri(null);
 985									databaseBackend.updateContact(contact,
 986											false);
 987									replaceContactInConversation(
 988											contact.getAccount(),
 989											contact.getJid(), contact);
 990								}
 991							}
 992						}
 993						if (listener != null) {
 994							listener.phoneContactsMerged();
 995						}
 996					}
 997				});
 998	}
 999
1000	public List<Conversation> getConversations() {
1001		if (this.conversations == null) {
1002			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
1003			for (Account account : this.accounts) {
1004				accountLookupTable.put(account.getUuid(), account);
1005			}
1006			this.conversations = databaseBackend
1007					.getConversations(Conversation.STATUS_AVAILABLE);
1008			for (Conversation conv : this.conversations) {
1009				Account account = accountLookupTable.get(conv.getAccountUuid());
1010				conv.setAccount(account);
1011				conv.setContact(findContact(account, conv.getContactJid()));
1012				conv.setMessages(databaseBackend.getMessages(conv, 50));
1013			}
1014		}
1015		Collections.sort(this.conversations, new Comparator<Conversation>() {
1016			@Override
1017			public int compare(Conversation lhs, Conversation rhs) {
1018				return (int) (rhs.getLatestMessage().getTimeSent() - lhs
1019						.getLatestMessage().getTimeSent());
1020			}
1021		});
1022		return this.conversations;
1023	}
1024
1025	public List<Account> getAccounts() {
1026		return this.accounts;
1027	}
1028
1029	public Contact findContact(Account account, String jid) {
1030		Contact contact = databaseBackend.findContact(account, jid);
1031		if (contact != null) {
1032			contact.setAccount(account);
1033		}
1034		return contact;
1035	}
1036
1037	public Conversation findOrCreateConversation(Account account, String jid,
1038			boolean muc) {
1039		for (Conversation conv : this.getConversations()) {
1040			if ((conv.getAccount().equals(account))
1041					&& (conv.getContactJid().split("/")[0].equals(jid))) {
1042				return conv;
1043			}
1044		}
1045		Conversation conversation = databaseBackend.findConversation(account,
1046				jid);
1047		if (conversation != null) {
1048			conversation.setStatus(Conversation.STATUS_AVAILABLE);
1049			conversation.setAccount(account);
1050			if (muc) {
1051				conversation.setMode(Conversation.MODE_MULTI);
1052			} else {
1053				conversation.setMode(Conversation.MODE_SINGLE);
1054			}
1055			conversation.setMessages(databaseBackend.getMessages(conversation,
1056					50));
1057			this.databaseBackend.updateConversation(conversation);
1058			conversation.setContact(findContact(account,
1059					conversation.getContactJid()));
1060		} else {
1061			String conversationName;
1062			Contact contact = findContact(account, jid);
1063			if (contact != null) {
1064				conversationName = contact.getDisplayName();
1065			} else {
1066				conversationName = jid.split("@")[0];
1067			}
1068			if (muc) {
1069				conversation = new Conversation(conversationName, account, jid,
1070						Conversation.MODE_MULTI);
1071			} else {
1072				conversation = new Conversation(conversationName, account, jid,
1073						Conversation.MODE_SINGLE);
1074			}
1075			conversation.setContact(contact);
1076			this.databaseBackend.createConversation(conversation);
1077		}
1078		this.conversations.add(conversation);
1079		if ((account.getStatus() == Account.STATUS_ONLINE)
1080				&& (conversation.getMode() == Conversation.MODE_MULTI)) {
1081			joinMuc(conversation);
1082		}
1083		if (this.convChangedListener != null) {
1084			this.convChangedListener.onConversationListChanged();
1085		}
1086		return conversation;
1087	}
1088
1089	public void archiveConversation(Conversation conversation) {
1090		if (conversation.getMode() == Conversation.MODE_MULTI) {
1091			leaveMuc(conversation);
1092		} else {
1093			conversation.endOtrIfNeeded();
1094		}
1095		this.databaseBackend.updateConversation(conversation);
1096		this.conversations.remove(conversation);
1097		if (this.convChangedListener != null) {
1098			this.convChangedListener.onConversationListChanged();
1099		}
1100	}
1101
1102	public void clearConversationHistory(Conversation conversation) {
1103		this.databaseBackend.deleteMessagesInConversation(conversation);
1104		this.fileBackend.removeFiles(conversation);
1105		conversation.getMessages().clear();
1106		if (this.convChangedListener != null) {
1107			this.convChangedListener.onConversationListChanged();
1108		}
1109	}
1110
1111	public int getConversationCount() {
1112		return this.databaseBackend.getConversationCount();
1113	}
1114
1115	public void createAccount(Account account) {
1116		databaseBackend.createAccount(account);
1117		this.accounts.add(account);
1118		this.reconnectAccount(account, false);
1119		if (accountChangedListener != null)
1120			accountChangedListener.onAccountListChangedListener();
1121	}
1122
1123	public void deleteContact(Contact contact) {
1124		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1125		Element query = iq.query("jabber:iq:roster");
1126		query.addChild("item").setAttribute("jid", contact.getJid())
1127				.setAttribute("subscription", "remove");
1128		contact.getAccount().getXmppConnection().sendIqPacket(iq, null);
1129		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1130				null);
1131		databaseBackend.deleteContact(contact);
1132	}
1133
1134	public void updateAccount(Account account) {
1135		this.statusListener.onStatusChanged(account);
1136		databaseBackend.updateAccount(account);
1137		reconnectAccount(account, false);
1138		if (accountChangedListener != null)
1139			accountChangedListener.onAccountListChangedListener();
1140	}
1141
1142	public void deleteAccount(Account account) {
1143		if (account.getXmppConnection() != null) {
1144			this.disconnect(account, true);
1145		}
1146		databaseBackend.deleteAccount(account);
1147		this.accounts.remove(account);
1148		if (accountChangedListener != null)
1149			accountChangedListener.onAccountListChangedListener();
1150	}
1151
1152	public void setOnConversationListChangedListener(
1153			OnConversationListChangedListener listener) {
1154		this.convChangedListener = listener;
1155		this.convChangedListenerCount++;
1156	}
1157
1158	public void removeOnConversationListChangedListener() {
1159		this.convChangedListenerCount--;
1160		if (this.convChangedListenerCount == 0) {
1161			this.convChangedListener = null;
1162		}
1163	}
1164
1165	public void setOnAccountListChangedListener(
1166			OnAccountListChangedListener listener) {
1167		this.accountChangedListener = listener;
1168	}
1169
1170	public void removeOnAccountListChangedListener() {
1171		this.accountChangedListener = null;
1172	}
1173
1174	public void connectMultiModeConversations(Account account) {
1175		List<Conversation> conversations = getConversations();
1176		for (int i = 0; i < conversations.size(); i++) {
1177			Conversation conversation = conversations.get(i);
1178			if ((conversation.getMode() == Conversation.MODE_MULTI)
1179					&& (conversation.getAccount() == account)) {
1180				joinMuc(conversation);
1181			}
1182		}
1183	}
1184
1185	public void joinMuc(Conversation conversation) {
1186		String[] mucParts = conversation.getContactJid().split("/");
1187		String muc;
1188		String nick;
1189		if (mucParts.length == 2) {
1190			muc = mucParts[0];
1191			nick = mucParts[1];
1192		} else {
1193			muc = mucParts[0];
1194			nick = conversation.getAccount().getUsername();
1195		}
1196		PresencePacket packet = new PresencePacket();
1197		packet.setAttribute("to", muc + "/" + nick);
1198		Element x = new Element("x");
1199		x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1200		if (conversation.getMessages().size() != 0) {
1201			long lastMsgTime = conversation.getLatestMessage().getTimeSent();
1202			long diff = (System.currentTimeMillis() - lastMsgTime) / 1000 - 1;
1203			x.addChild("history").setAttribute("seconds", diff + "");
1204		}
1205		packet.addChild(x);
1206		conversation.getAccount().getXmppConnection()
1207				.sendPresencePacket(packet);
1208	}
1209
1210	private OnRenameListener renameListener = null;
1211
1212	public void setOnRenameListener(OnRenameListener listener) {
1213		this.renameListener = listener;
1214	}
1215
1216	public void renameInMuc(final Conversation conversation, final String nick) {
1217		final MucOptions options = conversation.getMucOptions();
1218		if (options.online()) {
1219			options.setOnRenameListener(new OnRenameListener() {
1220
1221				@Override
1222				public void onRename(boolean success) {
1223					if (renameListener != null) {
1224						renameListener.onRename(success);
1225					}
1226					if (success) {
1227						String jid = conversation.getContactJid().split("/")[0] + "/"
1228								+ nick;
1229						conversation.setContactJid(jid);
1230						databaseBackend.updateConversation(conversation);
1231					}
1232				}
1233			});
1234			options.flagAboutToRename();
1235			PresencePacket packet = new PresencePacket();
1236			packet.setAttribute("to",
1237					conversation.getContactJid().split("/")[0] + "/" + nick);
1238			packet.setAttribute("from", conversation.getAccount().getFullJid());
1239
1240			conversation.getAccount().getXmppConnection()
1241					.sendPresencePacket(packet, null);
1242		} else {
1243			String jid = conversation.getContactJid().split("/")[0] + "/"
1244					+ nick;
1245			conversation.setContactJid(jid);
1246			databaseBackend.updateConversation(conversation);
1247			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
1248				joinMuc(conversation);
1249			}
1250		}
1251	}
1252
1253	public void leaveMuc(Conversation conversation) {
1254		PresencePacket packet = new PresencePacket();
1255		packet.setAttribute("to", conversation.getContactJid().split("/")[0]
1256				+ "/" + conversation.getMucOptions().getNick());
1257		packet.setAttribute("from", conversation.getAccount().getFullJid());
1258		packet.setAttribute("type", "unavailable");
1259		Log.d(LOGTAG, "send leaving muc " + packet);
1260		conversation.getAccount().getXmppConnection()
1261				.sendPresencePacket(packet);
1262		conversation.getMucOptions().setOffline();
1263	}
1264
1265	public void disconnect(Account account, boolean force) {
1266		if ((account.getStatus() == Account.STATUS_ONLINE)
1267				|| (account.getStatus() == Account.STATUS_DISABLED)) {
1268			if (!force) {
1269				List<Conversation> conversations = getConversations();
1270				for (int i = 0; i < conversations.size(); i++) {
1271					Conversation conversation = conversations.get(i);
1272					if (conversation.getAccount() == account) {
1273						if (conversation.getMode() == Conversation.MODE_MULTI) {
1274							leaveMuc(conversation);
1275						} else {
1276							conversation.endOtrIfNeeded();
1277						}
1278					}
1279				}
1280			}
1281			account.getXmppConnection().disconnect(force);
1282		}
1283	}
1284
1285	@Override
1286	public IBinder onBind(Intent intent) {
1287		return mBinder;
1288	}
1289
1290	public void updateContact(Contact contact) {
1291		databaseBackend.updateContact(contact, false);
1292		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1293				contact);
1294	}
1295
1296	public void updateMessage(Message message) {
1297		databaseBackend.updateMessage(message);
1298	}
1299
1300	public void createContact(Contact contact) {
1301		SharedPreferences sharedPref = getPreferences();
1302		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1303		if (autoGrant) {
1304			contact.setSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
1305			contact.setSubscriptionOption(Contact.Subscription.ASKING);
1306		}
1307		databaseBackend.createContact(contact);
1308		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1309		Element query = new Element("query");
1310		query.setAttribute("xmlns", "jabber:iq:roster");
1311		Element item = new Element("item");
1312		item.setAttribute("jid", contact.getJid());
1313		item.setAttribute("name", contact.getJid());
1314		query.addChild(item);
1315		iq.addChild(query);
1316		Account account = contact.getAccount();
1317		account.getXmppConnection().sendIqPacket(iq, null);
1318		if (autoGrant) {
1319			requestPresenceUpdatesFrom(contact);
1320			if (account.getXmppConnection().hasPendingSubscription(
1321					contact.getJid())) {
1322				Log.d("xmppService", "contact had pending subscription");
1323				sendPresenceUpdatesTo(contact);
1324			}
1325		}
1326		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1327				contact);
1328	}
1329
1330	public void requestPresenceUpdatesFrom(Contact contact) {
1331		// Requesting a Subscription type=subscribe
1332		PresencePacket packet = new PresencePacket();
1333		packet.setAttribute("type", "subscribe");
1334		packet.setAttribute("to", contact.getJid());
1335		packet.setAttribute("from", contact.getAccount().getJid());
1336		Log.d(LOGTAG, packet.toString());
1337		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1338	}
1339
1340	public void stopPresenceUpdatesFrom(Contact contact) {
1341		// Unsubscribing type='unsubscribe'
1342		PresencePacket packet = new PresencePacket();
1343		packet.setAttribute("type", "unsubscribe");
1344		packet.setAttribute("to", contact.getJid());
1345		packet.setAttribute("from", contact.getAccount().getJid());
1346		Log.d(LOGTAG, packet.toString());
1347		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1348	}
1349
1350	public void stopPresenceUpdatesTo(Contact contact) {
1351		// Canceling a Subscription type=unsubscribed
1352		PresencePacket packet = new PresencePacket();
1353		packet.setAttribute("type", "unsubscribed");
1354		packet.setAttribute("to", contact.getJid());
1355		packet.setAttribute("from", contact.getAccount().getJid());
1356		Log.d(LOGTAG, packet.toString());
1357		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1358	}
1359
1360	public void sendPresenceUpdatesTo(Contact contact) {
1361		// type='subscribed'
1362		PresencePacket packet = new PresencePacket();
1363		packet.setAttribute("type", "subscribed");
1364		packet.setAttribute("to", contact.getJid());
1365		packet.setAttribute("from", contact.getAccount().getJid());
1366		Log.d(LOGTAG, packet.toString());
1367		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1368	}
1369
1370	public void sendPgpPresence(Account account, String signature) {
1371		PresencePacket packet = new PresencePacket();
1372		packet.setAttribute("from", account.getFullJid());
1373		Element status = new Element("status");
1374		status.setContent("online");
1375		packet.addChild(status);
1376		Element x = new Element("x");
1377		x.setAttribute("xmlns", "jabber:x:signed");
1378		x.setContent(signature);
1379		packet.addChild(x);
1380		account.getXmppConnection().sendPresencePacket(packet);
1381	}
1382
1383	public void updateConversation(Conversation conversation) {
1384		this.databaseBackend.updateConversation(conversation);
1385	}
1386
1387	public Contact findContact(String uuid) {
1388		Contact contact = this.databaseBackend.getContact(uuid);
1389		if (contact != null) {
1390			for (Account account : getAccounts()) {
1391				if (contact.getAccountUuid().equals(account.getUuid())) {
1392					contact.setAccount(account);
1393				}
1394			}
1395		}
1396		return contact;
1397	}
1398
1399	public void removeOnTLSExceptionReceivedListener() {
1400		this.tlsException = null;
1401	}
1402
1403	// TODO dont let thread sleep but schedule wake up
1404	public void reconnectAccount(final Account account, final boolean force) {
1405		new Thread(new Runnable() {
1406
1407			@Override
1408			public void run() {
1409				if (account.getXmppConnection() != null) {
1410					disconnect(account, force);
1411				}
1412				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1413					if (account.getXmppConnection() == null) {
1414						account.setXmppConnection(createConnection(account));
1415					}
1416					Thread thread = new Thread(account.getXmppConnection());
1417					thread.start();
1418					scheduleWakeupCall((int) (CONNECT_TIMEOUT * 1.2), false);
1419				}
1420			}
1421		}).start();
1422	}
1423
1424	public void sendConversationSubject(Conversation conversation,
1425			String subject) {
1426		MessagePacket packet = new MessagePacket();
1427		packet.setType(MessagePacket.TYPE_GROUPCHAT);
1428		packet.setTo(conversation.getContactJid().split("/")[0]);
1429		Element subjectChild = new Element("subject");
1430		subjectChild.setContent(subject);
1431		packet.addChild(subjectChild);
1432		packet.setFrom(conversation.getAccount().getJid());
1433		Account account = conversation.getAccount();
1434		if (account.getStatus() == Account.STATUS_ONLINE) {
1435			account.getXmppConnection().sendMessagePacket(packet);
1436		}
1437	}
1438
1439	public void inviteToConference(Conversation conversation,
1440			List<Contact> contacts) {
1441		for (Contact contact : contacts) {
1442			MessagePacket packet = new MessagePacket();
1443			packet.setTo(conversation.getContactJid().split("/")[0]);
1444			packet.setFrom(conversation.getAccount().getFullJid());
1445			Element x = new Element("x");
1446			x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
1447			Element invite = new Element("invite");
1448			invite.setAttribute("to", contact.getJid());
1449			x.addChild(invite);
1450			packet.addChild(x);
1451			Log.d(LOGTAG, packet.toString());
1452			conversation.getAccount().getXmppConnection()
1453					.sendMessagePacket(packet);
1454		}
1455
1456	}
1457
1458	public boolean markMessage(Account account, String recipient, String uuid,
1459			int status) {
1460		boolean marked = false;
1461		for (Conversation conversation : getConversations()) {
1462			if (conversation.getContactJid().equals(recipient)
1463					&& conversation.getAccount().equals(account)) {
1464				for (Message message : conversation.getMessages()) {
1465					if (message.getUuid().equals(uuid)) {
1466						markMessage(message, status);
1467						marked = true;
1468						break;
1469					}
1470				}
1471				break;
1472			}
1473		}
1474		return marked;
1475	}
1476
1477	public void markMessage(Message message, int status) {
1478		message.setStatus(status);
1479		databaseBackend.updateMessage(message);
1480		if (convChangedListener != null) {
1481			convChangedListener.onConversationListChanged();
1482		}
1483	}
1484
1485	public SharedPreferences getPreferences() {
1486		return PreferenceManager
1487				.getDefaultSharedPreferences(getApplicationContext());
1488	}
1489	
1490	public void updateUi(Conversation conversation, boolean notify) {
1491		if (convChangedListener != null) {
1492			convChangedListener.onConversationListChanged();
1493		} else {
1494			UIHelper.updateNotification(getApplicationContext(), getConversations(), conversation, notify);
1495		}
1496	}
1497}