XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import java.io.File;
   4import java.text.ParseException;
   5import java.text.SimpleDateFormat;
   6import java.util.Collections;
   7import java.util.Comparator;
   8import java.util.Date;
   9import java.util.Hashtable;
  10import java.util.List;
  11import java.util.Locale;
  12import java.util.Random;
  13
  14import org.openintents.openpgp.util.OpenPgpApi;
  15import org.openintents.openpgp.util.OpenPgpServiceConnection;
  16
  17import net.java.otr4j.OtrException;
  18import net.java.otr4j.session.Session;
  19import net.java.otr4j.session.SessionStatus;
  20
  21import eu.siacs.conversations.crypto.PgpEngine;
  22import eu.siacs.conversations.crypto.PgpEngine.OpenPgpException;
  23import eu.siacs.conversations.entities.Account;
  24import eu.siacs.conversations.entities.Contact;
  25import eu.siacs.conversations.entities.Conversation;
  26import eu.siacs.conversations.entities.Message;
  27import eu.siacs.conversations.entities.MucOptions;
  28import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  29import eu.siacs.conversations.entities.Presences;
  30import eu.siacs.conversations.persistance.DatabaseBackend;
  31import eu.siacs.conversations.persistance.FileBackend;
  32import eu.siacs.conversations.persistance.OnPhoneContactsMerged;
  33import eu.siacs.conversations.ui.OnAccountListChangedListener;
  34import eu.siacs.conversations.ui.OnConversationListChangedListener;
  35import eu.siacs.conversations.ui.OnRosterFetchedListener;
  36import eu.siacs.conversations.utils.ExceptionHelper;
  37import eu.siacs.conversations.utils.MessageParser;
  38import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  39import eu.siacs.conversations.utils.PhoneHelper;
  40import eu.siacs.conversations.utils.UIHelper;
  41import eu.siacs.conversations.xml.Element;
  42import eu.siacs.conversations.xmpp.OnBindListener;
  43import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  44import eu.siacs.conversations.xmpp.OnJinglePacketReceived;
  45import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
  46import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
  47import eu.siacs.conversations.xmpp.OnStatusChanged;
  48import eu.siacs.conversations.xmpp.OnTLSExceptionReceived;
  49import eu.siacs.conversations.xmpp.XmppConnection;
  50import eu.siacs.conversations.xmpp.stanzas.IqPacket;
  51import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
  52import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
  53import eu.siacs.conversations.xmpp.stanzas.jingle.JinglePacket;
  54import android.app.AlarmManager;
  55import android.app.PendingIntent;
  56import android.app.Service;
  57import android.content.Context;
  58import android.content.Intent;
  59import android.content.SharedPreferences;
  60import android.database.ContentObserver;
  61import android.database.DatabaseUtils;
  62import android.net.ConnectivityManager;
  63import android.net.NetworkInfo;
  64import android.net.Uri;
  65import android.os.Binder;
  66import android.os.Bundle;
  67import android.os.IBinder;
  68import android.os.PowerManager;
  69import android.os.PowerManager.WakeLock;
  70import android.os.SystemClock;
  71import android.preference.PreferenceManager;
  72import android.provider.ContactsContract;
  73import android.util.Log;
  74
  75public class XmppConnectionService extends Service {
  76
  77	protected static final String LOGTAG = "xmppService";
  78	public DatabaseBackend databaseBackend;
  79	private FileBackend fileBackend;
  80
  81	public long startDate;
  82
  83	private static final int PING_MAX_INTERVAL = 300;
  84	private static final int PING_MIN_INTERVAL = 10;
  85	private static final int PING_TIMEOUT = 5;
  86	private static final int CONNECT_TIMEOUT = 60;
  87
  88	private List<Account> accounts;
  89	private List<Conversation> conversations = null;
  90	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(this);
  91	
  92	public OnConversationListChangedListener convChangedListener = null;
  93	private int convChangedListenerCount = 0;
  94	private OnAccountListChangedListener accountChangedListener = null;
  95	private OnTLSExceptionReceived tlsException = null;
  96
  97	public void setOnTLSExceptionReceivedListener(
  98			OnTLSExceptionReceived listener) {
  99		tlsException = listener;
 100	}
 101
 102	private Random mRandom = new Random(System.currentTimeMillis());
 103
 104	private ContentObserver contactObserver = new ContentObserver(null) {
 105		@Override
 106		public void onChange(boolean selfChange) {
 107			super.onChange(selfChange);
 108			Log.d(LOGTAG, "contact list has changed");
 109			mergePhoneContactsWithRoster(null);
 110		}
 111	};
 112
 113	private XmppConnectionService service = this;
 114
 115	private final IBinder mBinder = new XmppConnectionBinder();
 116	private OnMessagePacketReceived messageListener = new OnMessagePacketReceived() {
 117
 118		@Override
 119		public void onMessagePacketReceived(Account account,
 120				MessagePacket packet) {
 121			Message message = null;
 122			boolean notify = true;
 123			if ((packet.getType() == MessagePacket.TYPE_CHAT)) {
 124				String pgpBody = MessageParser.getPgpBody(packet);
 125				if (pgpBody != null) {
 126					message = MessageParser.parsePgpChat(pgpBody, packet,
 127							account, service);
 128					message.markUnread();
 129				} else if (packet.hasChild("body")
 130						&& (packet.getBody().startsWith("?OTR"))) {
 131					message = MessageParser.parseOtrChat(packet, account,
 132							service);
 133					if (message != null) {
 134						message.markUnread();
 135					}
 136				} else if (packet.hasChild("body")) {
 137					message = MessageParser.parsePlainTextChat(packet, account,
 138							service);
 139					message.markUnread();
 140				} else if (packet.hasChild("received")
 141						|| (packet.hasChild("sent"))) {
 142					message = MessageParser.parseCarbonMessage(packet, account,
 143							service);
 144					if (message != null) {
 145						if (message.getStatus() == Message.STATUS_SEND) {
 146							notify = false;
 147							message.getConversation().markRead();
 148						} else {
 149							message.markUnread();
 150						}
 151					}
 152				}
 153
 154			} else if (packet.getType() == MessagePacket.TYPE_GROUPCHAT) {
 155				message = MessageParser
 156						.parseGroupchat(packet, account, service);
 157				if (message != null) {
 158					if (message.getStatus() == Message.STATUS_RECIEVED) {
 159						message.markUnread();
 160					} else {
 161						message.getConversation().markRead();
 162						notify = false;
 163					}
 164				}
 165			} else if (packet.getType() == MessagePacket.TYPE_ERROR) {
 166				message = MessageParser.parseError(packet, account, service);
 167			} else if (packet.getType() == MessagePacket.TYPE_NORMAL) {
 168				if (packet.hasChild("x")) {
 169					Element x = packet.findChild("x");
 170					if (x.hasChild("invite")) {
 171						findOrCreateConversation(account, packet.getFrom(),
 172								true);
 173						if (convChangedListener != null) {
 174							convChangedListener.onConversationListChanged();
 175						}
 176						Log.d(LOGTAG,
 177								"invitation received to " + packet.getFrom());
 178					}
 179
 180				} else {
 181					// Log.d(LOGTAG, "unparsed message " + packet.toString());
 182				}
 183			}
 184			if ((message == null) || (message.getBody() == null)) {
 185				return;
 186			}
 187			if (packet.hasChild("delay")) {
 188				try {
 189					String stamp = packet.findChild("delay").getAttribute(
 190							"stamp");
 191					stamp = stamp.replace("Z", "+0000");
 192					Date date = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ")
 193							.parse(stamp);
 194					message.setTime(date.getTime());
 195				} catch (ParseException e) {
 196					Log.d(LOGTAG, "error trying to parse date" + e.getMessage());
 197				}
 198			}
 199			Conversation conversation = message.getConversation();
 200			conversation.getMessages().add(message);
 201			if (packet.getType() != MessagePacket.TYPE_ERROR) {
 202				databaseBackend.createMessage(message);
 203			}
 204			if (convChangedListener != null) {
 205				convChangedListener.onConversationListChanged();
 206			} else {
 207				UIHelper.updateNotification(getApplicationContext(),
 208						getConversations(), message.getConversation(), notify);
 209			}
 210		}
 211	};
 212	private OnStatusChanged statusListener = new OnStatusChanged() {
 213
 214		@Override
 215		public void onStatusChanged(Account account) {
 216			if (accountChangedListener != null) {
 217				accountChangedListener.onAccountListChangedListener();
 218			}
 219			if (account.getStatus() == Account.STATUS_ONLINE) {
 220				List<Conversation> conversations = getConversations();
 221				for (int i = 0; i < conversations.size(); ++i) {
 222					if (conversations.get(i).getAccount() == account) {
 223						sendUnsendMessages(conversations.get(i));
 224					}
 225				}
 226				scheduleWakeupCall(PING_MAX_INTERVAL, true);
 227			} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 228				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 229					int timeToReconnect = mRandom.nextInt(50) + 10;
 230					scheduleWakeupCall(timeToReconnect, false);
 231				}
 232
 233			} else if (account.getStatus() == Account.STATUS_REGISTRATION_SUCCESSFULL) {
 234				databaseBackend.updateAccount(account);
 235				reconnectAccount(account, true);
 236			} else {
 237				UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
 238			}
 239		}
 240	};
 241
 242	private OnPresencePacketReceived presenceListener = new OnPresencePacketReceived() {
 243
 244		@Override
 245		public void onPresencePacketReceived(Account account,
 246				PresencePacket packet) {
 247			if (packet.hasChild("x","http://jabber.org/protocol/muc#user")) {
 248				Conversation muc = findMuc(
 249						packet.getAttribute("from").split("/")[0], account);
 250				if (muc != null) {
 251					muc.getMucOptions().processPacket(packet);
 252				} else {
 253					Log.d(LOGTAG,account.getJid()+": could not find muc for received muc package "+packet.toString());
 254				}
 255			} else if (packet.hasChild("x","http://jabber.org/protocol/muc")) {
 256				Conversation muc = findMuc(packet.getAttribute("from").split("/")[0], account);
 257				if (muc != null) {
 258					Log.d(LOGTAG,account.getJid()+": reading muc status packet "+packet.toString());
 259					int error = muc.getMucOptions().getError();
 260					muc.getMucOptions().processPacket(packet);
 261					if ((muc.getMucOptions().getError() != error)
 262							&& (convChangedListener != null)) {
 263						Log.d(LOGTAG, "muc error status changed");
 264						convChangedListener.onConversationListChanged();
 265					}
 266				}
 267			} else {
 268				String[] fromParts = packet.getAttribute("from").split("/");
 269				String type = packet.getAttribute("type");
 270				if (fromParts[0].equals(account.getJid())) {
 271					if (fromParts.length==2) {
 272						if (type == null) {
 273							account.updatePresence(fromParts[1],Presences.parseShow(packet.findChild("show")));
 274						} else if (type.equals("unavailable")) {
 275							account.removePresence(fromParts[1]);
 276						}
 277					}
 278						
 279				} else {
 280					Contact contact = findContact(account, fromParts[0]);
 281					if (contact == null) {
 282						// most likely roster not synced
 283						return;
 284					}
 285					if (type == null) {
 286						if (fromParts.length == 2) {
 287							contact.updatePresence(fromParts[1], Presences.parseShow(packet.findChild("show")));
 288							PgpEngine pgp = getPgpEngine();
 289							if (pgp != null) {
 290								Element x = packet.findChild("x","jabber:x:signed");
 291								if (x != null) {
 292									try {
 293										Element status = packet.findChild("status");
 294										String msg;
 295										if (status!=null) {
 296											msg = status.getContent();
 297										} else {
 298											msg = "";
 299										}
 300										contact.setPgpKeyId(pgp.fetchKeyId(account,msg, x
 301														.getContent()));
 302									} catch (OpenPgpException e) {
 303										Log.d(LOGTAG, "faulty pgp. just ignore");
 304									}
 305								}
 306							}
 307							databaseBackend.updateContact(contact);
 308						} else {
 309							// Log.d(LOGTAG,"presence without resource "+packet.toString());
 310						}
 311					} else if (type.equals("unavailable")) {
 312						if (fromParts.length != 2) {
 313							// Log.d(LOGTAG,"received presence with no resource "+packet.toString());
 314						} else {
 315							contact.removePresence(fromParts[1]);
 316							databaseBackend.updateContact(contact);
 317						}
 318					} else if (type.equals("subscribe")) {
 319						if (contact
 320								.getSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT)) {
 321							sendPresenceUpdatesTo(contact);
 322							contact.setSubscriptionOption(Contact.Subscription.FROM);
 323							contact.resetSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
 324							replaceContactInConversation(contact.getJid(),
 325									contact);
 326							databaseBackend.updateContact(contact);
 327							if ((contact
 328									.getSubscriptionOption(Contact.Subscription.ASKING))
 329									&& (!contact
 330											.getSubscriptionOption(Contact.Subscription.TO))) {
 331								requestPresenceUpdatesFrom(contact);
 332							}
 333						} else {
 334							// TODO: ask user to handle it maybe
 335						}
 336					} else {
 337						//Log.d(LOGTAG, packet.toString());
 338					}
 339					replaceContactInConversation(contact.getJid(), contact);
 340				}
 341			}
 342		}
 343	};
 344
 345	private OnIqPacketReceived unknownIqListener = new OnIqPacketReceived() {
 346
 347		@Override
 348		public void onIqPacketReceived(Account account, IqPacket packet) {
 349			if (packet.hasChild("query")) {
 350				Element query = packet.findChild("query");
 351				String xmlns = query.getAttribute("xmlns");
 352				if ((xmlns != null) && (xmlns.equals("jabber:iq:roster"))) {
 353					processRosterItems(account, query);
 354					mergePhoneContactsWithRoster(null);
 355				}
 356			}
 357		}
 358	};
 359	
 360	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 361		
 362		@Override
 363		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 364			Log.d(LOGTAG,account.getJid()+": jingle packet received"+packet.toString());
 365		}
 366	};
 367
 368	private OpenPgpServiceConnection pgpServiceConnection;
 369	private PgpEngine mPgpEngine = null;
 370	private Intent pingIntent;
 371	private PendingIntent pendingPingIntent = null;
 372	private WakeLock wakeLock;
 373	private PowerManager pm;
 374
 375	public PgpEngine getPgpEngine() {
 376		if (pgpServiceConnection.isBound()) {
 377			if (this.mPgpEngine == null) {
 378				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 379						getApplicationContext(),
 380						pgpServiceConnection.getService()));
 381			}
 382			return mPgpEngine;
 383		} else {
 384			return null;
 385		}
 386
 387	}
 388
 389	public FileBackend getFileBackend() {
 390		return this.fileBackend;
 391	}
 392	
 393	public Message attachImageToConversation(Conversation conversation, Uri uri) {
 394		Message message = new Message(conversation, "", Message.ENCRYPTION_NONE);
 395		message.setType(Message.TYPE_IMAGE);
 396		File file = this.fileBackend.copyImageToPrivateStorage(message, uri);
 397		Log.d(LOGTAG,"new file"+file.getAbsolutePath());
 398		conversation.getMessages().add(message);
 399		databaseBackend.createMessage(message);
 400		sendMessage(message, null);
 401		return message;
 402	}
 403	
 404	
 405	protected Conversation findMuc(String name, Account account) {
 406		for (Conversation conversation : this.conversations) {
 407			if (conversation.getContactJid().split("/")[0].equals(name)
 408					&& (conversation.getAccount() == account)) {
 409				return conversation;
 410			}
 411		}
 412		return null;
 413	}
 414
 415	private void processRosterItems(Account account, Element elements) {
 416		String version = elements.getAttribute("ver");
 417		if (version != null) {
 418			account.setRosterVersion(version);
 419			databaseBackend.updateAccount(account);
 420		}
 421		for (Element item : elements.getChildren()) {
 422			if (item.getName().equals("item")) {
 423				String jid = item.getAttribute("jid");
 424				String subscription = item.getAttribute("subscription");
 425				Contact contact = databaseBackend.findContact(account, jid);
 426				if (contact == null) {
 427					if (!subscription.equals("remove")) {
 428						String name = item.getAttribute("name");
 429						if (name == null) {
 430							name = jid.split("@")[0];
 431						}
 432						contact = new Contact(account, name, jid, null);
 433						contact.parseSubscriptionFromElement(item);
 434						databaseBackend.createContact(contact);
 435					}
 436				} else {
 437					if (subscription.equals("remove")) {
 438						databaseBackend.deleteContact(contact);
 439						replaceContactInConversation(contact.getJid(), null);
 440					} else {
 441						contact.parseSubscriptionFromElement(item);
 442						databaseBackend.updateContact(contact);
 443						replaceContactInConversation(contact.getJid(), contact);
 444					}
 445				}
 446			}
 447		}
 448	}
 449
 450	private void replaceContactInConversation(String jid, Contact contact) {
 451		List<Conversation> conversations = getConversations();
 452		for (int i = 0; i < conversations.size(); ++i) {
 453			if ((conversations.get(i).getContactJid().equals(jid))) {
 454				conversations.get(i).setContact(contact);
 455				break;
 456			}
 457		}
 458	}
 459
 460	public class XmppConnectionBinder extends Binder {
 461		public XmppConnectionService getService() {
 462			return XmppConnectionService.this;
 463		}
 464	}
 465
 466	@Override
 467	public int onStartCommand(Intent intent, int flags, int startId) {
 468		this.wakeLock.acquire();
 469		// Log.d(LOGTAG,"calling start service. caller was:"+intent.getAction());
 470		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 471				.getSystemService(Context.CONNECTIVITY_SERVICE);
 472		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 473		boolean isConnected = activeNetwork != null
 474				&& activeNetwork.isConnected();
 475
 476		for (Account account : accounts) {
 477			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 478				if (!isConnected) {
 479					account.setStatus(Account.STATUS_NO_INTERNET);
 480					if (statusListener != null) {
 481						statusListener.onStatusChanged(account);
 482					}
 483				} else {
 484					if (account.getStatus() == Account.STATUS_NO_INTERNET) {
 485						account.setStatus(Account.STATUS_OFFLINE);
 486						if (statusListener != null) {
 487							statusListener.onStatusChanged(account);
 488						}
 489					}
 490
 491					// TODO 3 remaining cases
 492					if (account.getStatus() == Account.STATUS_ONLINE) {
 493						long lastReceived = account.getXmppConnection().lastPaketReceived;
 494						long lastSent = account.getXmppConnection().lastPingSent;
 495						if (lastSent - lastReceived >= PING_TIMEOUT * 1000) {
 496							Log.d(LOGTAG, account.getJid() + ": ping timeout");
 497							this.reconnectAccount(account, true);
 498						} else if (SystemClock.elapsedRealtime() - lastReceived >= PING_MIN_INTERVAL * 1000) {
 499							account.getXmppConnection().sendPing();
 500							account.getXmppConnection().lastPingSent = SystemClock
 501									.elapsedRealtime();
 502							this.scheduleWakeupCall(2, false);
 503						}
 504					} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 505						if (account.getXmppConnection() == null) {
 506							account.setXmppConnection(this
 507									.createConnection(account));
 508						}
 509						account.getXmppConnection().lastPingSent = SystemClock
 510								.elapsedRealtime();
 511						new Thread(account.getXmppConnection()).start();
 512					} else if ((account.getStatus() == Account.STATUS_CONNECTING)
 513							&& ((SystemClock.elapsedRealtime() - account
 514									.getXmppConnection().lastConnect) / 1000 >= CONNECT_TIMEOUT)) {
 515						Log.d(LOGTAG, account.getJid()
 516								+ ": time out during connect reconnecting");
 517						reconnectAccount(account, true);
 518					} else {
 519						Log.d(LOGTAG,
 520								"seconds since last connect:"
 521										+ ((SystemClock.elapsedRealtime() - account
 522												.getXmppConnection().lastConnect) / 1000));
 523						Log.d(LOGTAG,
 524								account.getJid() + ": status="
 525										+ account.getStatus());
 526						// TODO notify user of ssl cert problem or auth problem
 527						// or what ever
 528					}
 529					// in any case. reschedule wakup call
 530					this.scheduleWakeupCall(PING_MAX_INTERVAL, true);
 531				}
 532				if (accountChangedListener != null) {
 533					accountChangedListener.onAccountListChangedListener();
 534				}
 535			}
 536		}
 537		if (wakeLock.isHeld()) {
 538			wakeLock.release();
 539		}
 540		return START_STICKY;
 541	}
 542
 543	@Override
 544	public void onCreate() {
 545		ExceptionHelper.init(getApplicationContext());
 546		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 547		this.fileBackend = new FileBackend(getApplicationContext());
 548		this.accounts = databaseBackend.getAccounts();
 549
 550		this.getConversations();
 551		
 552		getContentResolver().registerContentObserver(
 553				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 554		this.pgpServiceConnection = new OpenPgpServiceConnection(
 555				getApplicationContext(), "org.sufficientlysecure.keychain");
 556		this.pgpServiceConnection.bindToService();
 557
 558		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 559		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
 560				"XmppConnectionService");
 561	}
 562
 563	@Override
 564	public void onDestroy() {
 565		super.onDestroy();
 566		for (Account account : accounts) {
 567			if (account.getXmppConnection() != null) {
 568				disconnect(account, true);
 569			}
 570		}
 571	}
 572
 573	protected void scheduleWakeupCall(int seconds, boolean ping) {
 574		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 575		Context context = getApplicationContext();
 576		AlarmManager alarmManager = (AlarmManager) context
 577				.getSystemService(Context.ALARM_SERVICE);
 578
 579		if (ping) {
 580			if (this.pingIntent == null) {
 581				this.pingIntent = new Intent(context, EventReceiver.class);
 582				this.pingIntent.setAction("ping");
 583				this.pingIntent.putExtra("time", timeToWake);
 584				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 585						this.pingIntent, 0);
 586				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 587						timeToWake, pendingPingIntent);
 588				// Log.d(LOGTAG,"schedule ping in "+seconds+" seconds");
 589			} else {
 590				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
 591				if (scheduledTime < SystemClock.elapsedRealtime()
 592						|| (scheduledTime > timeToWake)) {
 593					this.pingIntent.putExtra("time", timeToWake);
 594					alarmManager.cancel(this.pendingPingIntent);
 595					this.pendingPingIntent = PendingIntent.getBroadcast(
 596							context, 0, this.pingIntent, 0);
 597					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 598							timeToWake, pendingPingIntent);
 599					// Log.d(LOGTAG,"reschedule old ping to ping in "+seconds+" seconds");
 600				}
 601			}
 602		} else {
 603			Intent intent = new Intent(context, EventReceiver.class);
 604			intent.setAction("ping_check");
 605			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 606					intent, 0);
 607			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 608					alarmIntent);
 609		}
 610
 611	}
 612
 613	public XmppConnection createConnection(Account account) {
 614		SharedPreferences sharedPref = PreferenceManager
 615				.getDefaultSharedPreferences(getApplicationContext());
 616		account.setResource(sharedPref.getString("resource", "mobile").toLowerCase(Locale.getDefault()));
 617		XmppConnection connection = new XmppConnection(account, this.pm);
 618		connection.setOnMessagePacketReceivedListener(this.messageListener);
 619		connection.setOnStatusChangedListener(this.statusListener);
 620		connection.setOnPresencePacketReceivedListener(this.presenceListener);
 621		connection
 622				.setOnUnregisteredIqPacketReceivedListener(this.unknownIqListener);
 623		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 624		connection
 625				.setOnTLSExceptionReceivedListener(new OnTLSExceptionReceived() {
 626
 627					@Override
 628					public void onTLSExceptionReceived(String fingerprint,
 629							Account account) {
 630						Log.d(LOGTAG, "tls exception arrived in service");
 631						if (tlsException != null) {
 632							tlsException.onTLSExceptionReceived(fingerprint,
 633									account);
 634						}
 635					}
 636				});
 637		connection.setOnBindListener(new OnBindListener() {
 638
 639			@Override
 640			public void onBind(Account account) {
 641				databaseBackend.clearPresences(account);
 642				account.clearPresences(); // self presences
 643				if (account.getXmppConnection().hasFeatureRosterManagment()) {
 644					updateRoster(account, null);
 645				}
 646				connectMultiModeConversations(account);
 647				if (convChangedListener != null) {
 648					convChangedListener.onConversationListChanged();
 649				}
 650			}
 651		});
 652		return connection;
 653	}
 654
 655	synchronized public void sendMessage(Message message, String presence) {
 656		Account account = message.getConversation().getAccount();
 657		Conversation conv = message.getConversation();
 658		boolean saveInDb = false;
 659		boolean addToConversation = false;
 660		if (account.getStatus() == Account.STATUS_ONLINE) {
 661			if (message.getType() == Message.TYPE_IMAGE) {
 662				mJingleConnectionManager.createNewConnection(message);
 663			} else {
 664				MessagePacket packet;
 665				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 666					if (!conv.hasValidOtrSession()) {
 667						// starting otr session. messages will be send later
 668						conv.startOtrSession(getApplicationContext(), presence,true);
 669					} else if (conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 670						// otr session aleary exists, creating message packet
 671						// accordingly
 672						packet = prepareMessagePacket(account, message,
 673								conv.getOtrSession());
 674						account.getXmppConnection().sendMessagePacket(packet);
 675						message.setStatus(Message.STATUS_SEND);
 676					}
 677					saveInDb = true;
 678					addToConversation = true;
 679				} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 680					message.getConversation().endOtrIfNeeded();
 681					long keyId = message.getConversation().getContact()
 682							.getPgpKeyId();
 683					packet = new MessagePacket();
 684					packet.setType(MessagePacket.TYPE_CHAT);
 685					packet.setFrom(message.getConversation().getAccount()
 686							.getFullJid());
 687					packet.setTo(message.getCounterpart());
 688					packet.setBody("This is an XEP-0027 encryted message");
 689					packet.addChild("x", "jabber:x:encrypted").setContent(message.getEncryptedBody());
 690					account.getXmppConnection().sendMessagePacket(packet);
 691					message.setStatus(Message.STATUS_SEND);
 692					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 693					saveInDb = true;
 694					addToConversation = true;
 695				} else {
 696					message.getConversation().endOtrIfNeeded();
 697					// don't encrypt
 698					if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 699						message.setStatus(Message.STATUS_SEND);
 700						saveInDb = true;
 701						addToConversation = true;
 702					}
 703	
 704					packet = prepareMessagePacket(account, message, null);
 705					account.getXmppConnection().sendMessagePacket(packet);
 706				}
 707			}
 708		} else {
 709			// account is offline
 710			saveInDb = true;
 711			addToConversation = true;
 712
 713		}
 714		if (saveInDb) {
 715			databaseBackend.createMessage(message);
 716		}
 717		if (addToConversation) {
 718			conv.getMessages().add(message);
 719			if (convChangedListener != null) {
 720				convChangedListener.onConversationListChanged();
 721			}
 722		}
 723
 724	}
 725
 726	private void sendUnsendMessages(Conversation conversation) {
 727		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 728			if ((conversation.getMessages().get(i).getStatus() == Message.STATUS_UNSEND)&&(conversation.getMessages().get(i).getEncryption() == Message.ENCRYPTION_NONE)) {
 729				Message message = conversation.getMessages().get(i);
 730				MessagePacket packet = prepareMessagePacket(
 731						conversation.getAccount(), message, null);
 732				conversation.getAccount().getXmppConnection()
 733						.sendMessagePacket(packet);
 734				message.setStatus(Message.STATUS_SEND);
 735				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 736					databaseBackend.updateMessage(message);
 737				} else {
 738					databaseBackend.deleteMessage(message);
 739					conversation.getMessages().remove(i);
 740					i--;
 741				}
 742			}
 743		}
 744	}
 745
 746	public MessagePacket prepareMessagePacket(Account account, Message message,
 747			Session otrSession) {
 748		MessagePacket packet = new MessagePacket();
 749		if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 750			packet.setType(MessagePacket.TYPE_CHAT);
 751			if (otrSession != null) {
 752				try {
 753					packet.setBody(otrSession.transformSending(message
 754							.getBody()));
 755				} catch (OtrException e) {
 756					Log.d(LOGTAG,
 757							account.getJid()
 758									+ ": could not encrypt message to "
 759									+ message.getCounterpart());
 760				}
 761				packet.addChild("private","urn:xmpp:carbons:2");
 762				packet.addChild("no-copy","urn:xmpp:hints");
 763				packet.setTo(otrSession.getSessionID().getAccountID() + "/"
 764						+ otrSession.getSessionID().getUserID());
 765				packet.setFrom(account.getFullJid());
 766			} else {
 767				packet.setBody(message.getBody());
 768				packet.setTo(message.getCounterpart());
 769				packet.setFrom(account.getJid());
 770			}
 771		} else if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 772			packet.setType(MessagePacket.TYPE_GROUPCHAT);
 773			packet.setBody(message.getBody());
 774			packet.setTo(message.getCounterpart().split("/")[0]);
 775			packet.setFrom(account.getJid());
 776		}
 777		return packet;
 778	}
 779
 780	private void getRoster(Account account,
 781			final OnRosterFetchedListener listener) {
 782		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 783		for (int i = 0; i < contacts.size(); ++i) {
 784			contacts.get(i).setAccount(account);
 785		}
 786		if (listener != null) {
 787			listener.onRosterFetched(contacts);
 788		}
 789	}
 790
 791	public List<Contact> getRoster(Account account) {
 792		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 793		for (int i = 0; i < contacts.size(); ++i) {
 794			contacts.get(i).setAccount(account);
 795		}
 796		return contacts;
 797	}
 798
 799	public void updateRoster(final Account account,
 800			final OnRosterFetchedListener listener) {
 801		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 802		if (!"".equals(account.getRosterVersion())) {
 803			Log.d(LOGTAG, account.getJid() + ": fetching roster version "
 804					+ account.getRosterVersion());
 805		} else {
 806			Log.d(LOGTAG, account.getJid() + ": fetching roster");
 807		}
 808		iqPacket.query("jabber:iq:roster").setAttribute("ver", account.getRosterVersion());
 809		account.getXmppConnection().sendIqPacket(iqPacket,
 810				new OnIqPacketReceived() {
 811
 812					@Override
 813					public void onIqPacketReceived(final Account account,
 814							IqPacket packet) {
 815						Element roster = packet.findChild("query");
 816						if (roster != null) {
 817							Log.d(LOGTAG, account.getJid()
 818									+ ": processing roster");
 819							processRosterItems(account, roster);
 820							StringBuilder mWhere = new StringBuilder();
 821							mWhere.append("jid NOT IN(");
 822							List<Element> items = roster.getChildren();
 823							for (int i = 0; i < items.size(); ++i) {
 824								mWhere.append(DatabaseUtils
 825										.sqlEscapeString(items.get(i)
 826												.getAttribute("jid")));
 827								if (i != items.size() - 1) {
 828									mWhere.append(",");
 829								}
 830							}
 831							mWhere.append(") and accountUuid = \"");
 832							mWhere.append(account.getUuid());
 833							mWhere.append("\"");
 834							List<Contact> contactsToDelete = databaseBackend
 835									.getContacts(mWhere.toString());
 836							for (Contact contact : contactsToDelete) {
 837								databaseBackend.deleteContact(contact);
 838								replaceContactInConversation(contact.getJid(),
 839										null);
 840							}
 841
 842						} else {
 843							Log.d(LOGTAG, account.getJid()
 844									+ ": empty roster returend");
 845						}
 846						mergePhoneContactsWithRoster(new OnPhoneContactsMerged() {
 847
 848							@Override
 849							public void phoneContactsMerged() {
 850								if (listener != null) {
 851									getRoster(account, listener);
 852								}
 853							}
 854						});
 855					}
 856				});
 857	}
 858
 859	public void mergePhoneContactsWithRoster(
 860			final OnPhoneContactsMerged listener) {
 861		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 862				new OnPhoneContactsLoadedListener() {
 863					@Override
 864					public void onPhoneContactsLoaded(
 865							Hashtable<String, Bundle> phoneContacts) {
 866						List<Contact> contacts = databaseBackend
 867								.getContactsByAccount(null);
 868						for (int i = 0; i < contacts.size(); ++i) {
 869							Contact contact = contacts.get(i);
 870							if (phoneContacts.containsKey(contact.getJid())) {
 871								Bundle phoneContact = phoneContacts.get(contact
 872										.getJid());
 873								String systemAccount = phoneContact
 874										.getInt("phoneid")
 875										+ "#"
 876										+ phoneContact.getString("lookup");
 877								contact.setSystemAccount(systemAccount);
 878								contact.setPhotoUri(phoneContact
 879										.getString("photouri"));
 880								contact.setDisplayName(phoneContact
 881										.getString("displayname"));
 882								databaseBackend.updateContact(contact);
 883								replaceContactInConversation(contact.getJid(),
 884										contact);
 885							} else {
 886								if ((contact.getSystemAccount() != null)
 887										|| (contact.getProfilePhoto() != null)) {
 888									contact.setSystemAccount(null);
 889									contact.setPhotoUri(null);
 890									databaseBackend.updateContact(contact);
 891									replaceContactInConversation(
 892											contact.getJid(), contact);
 893								}
 894							}
 895						}
 896						if (listener != null) {
 897							listener.phoneContactsMerged();
 898						}
 899					}
 900				});
 901	}
 902
 903	public List<Conversation> getConversations() {
 904		if (this.conversations == null) {
 905			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
 906			for (Account account : this.accounts) {
 907				accountLookupTable.put(account.getUuid(), account);
 908			}
 909			this.conversations = databaseBackend
 910					.getConversations(Conversation.STATUS_AVAILABLE);
 911			for (Conversation conv : this.conversations) {
 912				Account account = accountLookupTable.get(conv.getAccountUuid());
 913				conv.setAccount(account);
 914				conv.setContact(findContact(account, conv.getContactJid()));
 915				conv.setMessages(databaseBackend.getMessages(conv, 50));
 916			}
 917		}
 918		Collections.sort(this.conversations, new Comparator<Conversation>() {
 919			@Override
 920			public int compare(Conversation lhs, Conversation rhs) {
 921				return (int) (rhs.getLatestMessage().getTimeSent() - lhs
 922						.getLatestMessage().getTimeSent());
 923			}
 924		});
 925		return this.conversations;
 926	}
 927
 928	public List<Account> getAccounts() {
 929		return this.accounts;
 930	}
 931
 932	public Contact findContact(Account account, String jid) {
 933		Contact contact = databaseBackend.findContact(account, jid);
 934		if (contact != null) {
 935			contact.setAccount(account);
 936		}
 937		return contact;
 938	}
 939
 940	public Conversation findOrCreateConversation(Account account, String jid,
 941			boolean muc) {
 942		for (Conversation conv : this.getConversations()) {
 943			if ((conv.getAccount().equals(account))
 944					&& (conv.getContactJid().split("/")[0].equals(jid))) {
 945				return conv;
 946			}
 947		}
 948		Conversation conversation = databaseBackend.findConversation(account,
 949				jid);
 950		if (conversation != null) {
 951			conversation.setStatus(Conversation.STATUS_AVAILABLE);
 952			conversation.setAccount(account);
 953			if (muc) {
 954				conversation.setMode(Conversation.MODE_MULTI);
 955			} else {
 956				conversation.setMode(Conversation.MODE_SINGLE);
 957			}
 958			conversation.setMessages(databaseBackend.getMessages(conversation,
 959					50));
 960			this.databaseBackend.updateConversation(conversation);
 961			conversation.setContact(findContact(account,
 962					conversation.getContactJid()));
 963		} else {
 964			String conversationName;
 965			Contact contact = findContact(account, jid);
 966			if (contact != null) {
 967				conversationName = contact.getDisplayName();
 968			} else {
 969				conversationName = jid.split("@")[0];
 970			}
 971			if (muc) {
 972				conversation = new Conversation(conversationName, account, jid,
 973						Conversation.MODE_MULTI);
 974			} else {
 975				conversation = new Conversation(conversationName, account, jid,
 976						Conversation.MODE_SINGLE);
 977			}
 978			conversation.setContact(contact);
 979			this.databaseBackend.createConversation(conversation);
 980		}
 981		this.conversations.add(conversation);
 982		if ((account.getStatus() == Account.STATUS_ONLINE)&&(conversation.getMode() == Conversation.MODE_MULTI)) {
 983			joinMuc(conversation);
 984		}
 985		if (this.convChangedListener != null) {
 986			this.convChangedListener.onConversationListChanged();
 987		}
 988		return conversation;
 989	}
 990
 991	public void archiveConversation(Conversation conversation) {
 992		if (conversation.getMode() == Conversation.MODE_MULTI) {
 993			leaveMuc(conversation);
 994		} else {
 995			conversation.endOtrIfNeeded();
 996		}
 997		this.databaseBackend.updateConversation(conversation);
 998		this.conversations.remove(conversation);
 999		if (this.convChangedListener != null) {
1000			this.convChangedListener.onConversationListChanged();
1001		}
1002	}
1003
1004	public int getConversationCount() {
1005		return this.databaseBackend.getConversationCount();
1006	}
1007
1008	public void createAccount(Account account) {
1009		databaseBackend.createAccount(account);
1010		this.accounts.add(account);
1011		this.reconnectAccount(account, false);
1012		if (accountChangedListener != null)
1013			accountChangedListener.onAccountListChangedListener();
1014	}
1015
1016	public void deleteContact(Contact contact) {
1017		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1018		Element query = iq.query("jabber:iq:roster");
1019		query.addChild("item").setAttribute("jid", contact.getJid()).setAttribute("subscription", "remove");
1020		contact.getAccount().getXmppConnection().sendIqPacket(iq, null);
1021		replaceContactInConversation(contact.getJid(), null);
1022		databaseBackend.deleteContact(contact);
1023	}
1024
1025	public void updateAccount(Account account) {
1026		this.statusListener.onStatusChanged(account);
1027		databaseBackend.updateAccount(account);
1028		reconnectAccount(account, false);
1029		if (accountChangedListener != null)
1030			accountChangedListener.onAccountListChangedListener();
1031	}
1032
1033	public void deleteAccount(Account account) {
1034		if (account.getXmppConnection() != null) {
1035			this.disconnect(account, true);
1036		}
1037		databaseBackend.deleteAccount(account);
1038		this.accounts.remove(account);
1039		if (accountChangedListener != null)
1040			accountChangedListener.onAccountListChangedListener();
1041	}
1042
1043	public void setOnConversationListChangedListener(
1044			OnConversationListChangedListener listener) {
1045		this.convChangedListener = listener;
1046		this.convChangedListenerCount++;
1047		Log.d(LOGTAG,"registered on conv changed in backend ("+convChangedListenerCount+")");
1048	}
1049
1050	public void removeOnConversationListChangedListener() {
1051		this.convChangedListenerCount--;
1052		Log.d(LOGTAG,"someone on conv changed listener removed listener ("+convChangedListenerCount+")");
1053		if (this.convChangedListenerCount==0) {
1054			this.convChangedListener = null;
1055		}
1056	}
1057
1058	public void setOnAccountListChangedListener(
1059			OnAccountListChangedListener listener) {
1060		this.accountChangedListener = listener;
1061	}
1062
1063	public void removeOnAccountListChangedListener() {
1064		this.accountChangedListener = null;
1065	}
1066
1067	public void connectMultiModeConversations(Account account) {
1068		List<Conversation> conversations = getConversations();
1069		for (int i = 0; i < conversations.size(); i++) {
1070			Conversation conversation = conversations.get(i);
1071			if ((conversation.getMode() == Conversation.MODE_MULTI)
1072					&& (conversation.getAccount() == account)) {
1073				joinMuc(conversation);
1074			}
1075		}
1076	}
1077
1078	public void joinMuc(Conversation conversation) {
1079		String[] mucParts = conversation.getContactJid().split("/");
1080		String muc;
1081		String nick;
1082		if (mucParts.length == 2) {
1083			muc = mucParts[0];
1084			nick = mucParts[1];
1085		} else {
1086			muc = mucParts[0];
1087			nick = conversation.getAccount().getUsername();
1088		}
1089		PresencePacket packet = new PresencePacket();
1090		packet.setAttribute("to", muc + "/" + nick);
1091		Element x = new Element("x");
1092		x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1093		if (conversation.getMessages().size() != 0) {
1094			long lastMsgTime = conversation.getLatestMessage().getTimeSent();
1095			long diff = (System.currentTimeMillis() - lastMsgTime) / 1000 - 1;
1096			x.addChild("history").setAttribute("seconds", diff + "");
1097		}
1098		packet.addChild(x);
1099		conversation.getAccount().getXmppConnection()
1100				.sendPresencePacket(packet);
1101	}
1102
1103	private OnRenameListener renameListener = null;
1104
1105	public void setOnRenameListener(OnRenameListener listener) {
1106		this.renameListener = listener;
1107	}
1108
1109	public void renameInMuc(final Conversation conversation, final String nick) {
1110		final MucOptions options = conversation.getMucOptions();
1111		if (options.online()) {
1112			options.setOnRenameListener(new OnRenameListener() {
1113
1114				@Override
1115				public void onRename(boolean success) {
1116					if (renameListener != null) {
1117						renameListener.onRename(success);
1118					}
1119					if (success) {
1120						databaseBackend.updateConversation(conversation);
1121					}
1122				}
1123			});
1124			options.flagAboutToRename();
1125			PresencePacket packet = new PresencePacket();
1126			packet.setAttribute("to",
1127					conversation.getContactJid().split("/")[0] + "/" + nick);
1128			packet.setAttribute("from", conversation.getAccount().getFullJid());
1129
1130			conversation.getAccount().getXmppConnection()
1131					.sendPresencePacket(packet, null);
1132		} else {
1133			String jid = conversation.getContactJid().split("/")[0] + "/"
1134					+ nick;
1135			conversation.setContactJid(jid);
1136			databaseBackend.updateConversation(conversation);
1137			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
1138				joinMuc(conversation);
1139			}
1140		}
1141	}
1142
1143	public void leaveMuc(Conversation conversation) {
1144		PresencePacket packet = new PresencePacket();
1145		packet.setAttribute("to", conversation.getContactJid().split("/")[0] + "/" + conversation.getMucOptions().getNick());
1146		packet.setAttribute("from", conversation.getAccount().getFullJid());
1147		packet.setAttribute("type", "unavailable");
1148		Log.d(LOGTAG,"send leaving muc " + packet);
1149		conversation.getAccount().getXmppConnection()
1150				.sendPresencePacket(packet);
1151		conversation.getMucOptions().setOffline();
1152	}
1153
1154	public void disconnect(Account account, boolean force) {
1155		if ((account.getStatus() == Account.STATUS_ONLINE)
1156				|| (account.getStatus() == Account.STATUS_DISABLED)) {
1157			if (!force) {
1158				List<Conversation> conversations = getConversations();
1159				for (int i = 0; i < conversations.size(); i++) {
1160					Conversation conversation = conversations.get(i);
1161					if (conversation.getAccount() == account) {
1162						if (conversation.getMode() == Conversation.MODE_MULTI) {
1163							leaveMuc(conversation);
1164						} else {
1165							conversation.endOtrIfNeeded();
1166						}
1167					}
1168				}
1169			}
1170			account.getXmppConnection().disconnect(force);
1171		}
1172	}
1173
1174	@Override
1175	public IBinder onBind(Intent intent) {
1176		return mBinder;
1177	}
1178
1179	public void updateContact(Contact contact) {
1180		databaseBackend.updateContact(contact);
1181		replaceContactInConversation(contact.getJid(), contact);
1182	}
1183
1184	public void updateMessage(Message message) {
1185		databaseBackend.updateMessage(message);
1186	}
1187
1188	public void createContact(Contact contact) {
1189		SharedPreferences sharedPref = PreferenceManager
1190				.getDefaultSharedPreferences(getApplicationContext());
1191		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1192		if (autoGrant) {
1193			contact.setSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
1194			contact.setSubscriptionOption(Contact.Subscription.ASKING);
1195		}
1196		databaseBackend.createContact(contact);
1197		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1198		Element query = new Element("query");
1199		query.setAttribute("xmlns", "jabber:iq:roster");
1200		Element item = new Element("item");
1201		item.setAttribute("jid", contact.getJid());
1202		item.setAttribute("name", contact.getJid());
1203		query.addChild(item);
1204		iq.addChild(query);
1205		Account account = contact.getAccount();
1206		account.getXmppConnection().sendIqPacket(iq, null);
1207		if (autoGrant) {
1208			requestPresenceUpdatesFrom(contact);
1209		}
1210		replaceContactInConversation(contact.getJid(), contact);
1211	}
1212
1213	public void requestPresenceUpdatesFrom(Contact contact) {
1214		// Requesting a Subscription type=subscribe
1215		PresencePacket packet = new PresencePacket();
1216		packet.setAttribute("type", "subscribe");
1217		packet.setAttribute("to", contact.getJid());
1218		packet.setAttribute("from", contact.getAccount().getJid());
1219		Log.d(LOGTAG, packet.toString());
1220		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1221	}
1222
1223	public void stopPresenceUpdatesFrom(Contact contact) {
1224		// Unsubscribing type='unsubscribe'
1225		PresencePacket packet = new PresencePacket();
1226		packet.setAttribute("type", "unsubscribe");
1227		packet.setAttribute("to", contact.getJid());
1228		packet.setAttribute("from", contact.getAccount().getJid());
1229		Log.d(LOGTAG, packet.toString());
1230		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1231	}
1232
1233	public void stopPresenceUpdatesTo(Contact contact) {
1234		// Canceling a Subscription type=unsubscribed
1235		PresencePacket packet = new PresencePacket();
1236		packet.setAttribute("type", "unsubscribed");
1237		packet.setAttribute("to", contact.getJid());
1238		packet.setAttribute("from", contact.getAccount().getJid());
1239		Log.d(LOGTAG, packet.toString());
1240		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1241	}
1242
1243	public void sendPresenceUpdatesTo(Contact contact) {
1244		// type='subscribed'
1245		PresencePacket packet = new PresencePacket();
1246		packet.setAttribute("type", "subscribed");
1247		packet.setAttribute("to", contact.getJid());
1248		packet.setAttribute("from", contact.getAccount().getJid());
1249		Log.d(LOGTAG, packet.toString());
1250		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1251	}
1252
1253	public void sendPgpPresence(Account account, String signature) {
1254		PresencePacket packet = new PresencePacket();
1255		packet.setAttribute("from", account.getFullJid());
1256		Element status = new Element("status");
1257		status.setContent("online");
1258		packet.addChild(status);
1259		Element x = new Element("x");
1260		x.setAttribute("xmlns", "jabber:x:signed");
1261		x.setContent(signature);
1262		packet.addChild(x);
1263		account.getXmppConnection().sendPresencePacket(packet);
1264	}
1265
1266	public void generatePgpAnnouncement(Account account)
1267			throws PgpEngine.UserInputRequiredException {
1268		if (account.getStatus() == Account.STATUS_ONLINE) {
1269			String signature = getPgpEngine().generateSignature("online");
1270			account.setKey("pgp_signature", signature);
1271			databaseBackend.updateAccount(account);
1272			sendPgpPresence(account, signature);
1273		}
1274	}
1275
1276	public void updateConversation(Conversation conversation) {
1277		this.databaseBackend.updateConversation(conversation);
1278	}
1279
1280	public Contact findContact(String uuid) {
1281		Contact contact = this.databaseBackend.getContact(uuid);
1282		for (Account account : getAccounts()) {
1283			if (contact.getAccountUuid().equals(account.getUuid())) {
1284				contact.setAccount(account);
1285			}
1286		}
1287		return contact;
1288	}
1289
1290	public void removeOnTLSExceptionReceivedListener() {
1291		this.tlsException = null;
1292	}
1293
1294	// TODO dont let thread sleep but schedule wake up
1295	public void reconnectAccount(final Account account, final boolean force) {
1296		new Thread(new Runnable() {
1297
1298			@Override
1299			public void run() {
1300				if (account.getXmppConnection() != null) {
1301					disconnect(account, force);
1302				}
1303				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1304					if (account.getXmppConnection() == null) {
1305						account.setXmppConnection(createConnection(account));
1306					}
1307					Thread thread = new Thread(account.getXmppConnection());
1308					thread.start();
1309					scheduleWakeupCall((int) (CONNECT_TIMEOUT * 1.2), false);
1310				}
1311			}
1312		}).start();
1313	}
1314
1315	public void updateConversationInGui() {
1316		if (convChangedListener != null) {
1317			convChangedListener.onConversationListChanged();
1318		}
1319	}
1320
1321	public void sendConversationSubject(Conversation conversation,
1322			String subject) {
1323		MessagePacket packet = new MessagePacket();
1324		packet.setType(MessagePacket.TYPE_GROUPCHAT);
1325		packet.setTo(conversation.getContactJid().split("/")[0]);
1326		Element subjectChild = new Element("subject");
1327		subjectChild.setContent(subject);
1328		packet.addChild(subjectChild);
1329		packet.setFrom(conversation.getAccount().getJid());
1330		Account account = conversation.getAccount();
1331		if (account.getStatus() == Account.STATUS_ONLINE) {
1332			account.getXmppConnection().sendMessagePacket(packet);
1333		}
1334	}
1335
1336	public void inviteToConference(Conversation conversation,
1337			List<Contact> contacts) {
1338		for (Contact contact : contacts) {
1339			MessagePacket packet = new MessagePacket();
1340			packet.setTo(conversation.getContactJid().split("/")[0]);
1341			packet.setFrom(conversation.getAccount().getFullJid());
1342			Element x = new Element("x");
1343			x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
1344			Element invite = new Element("invite");
1345			invite.setAttribute("to", contact.getJid());
1346			x.addChild(invite);
1347			packet.addChild(x);
1348			Log.d(LOGTAG, packet.toString());
1349			conversation.getAccount().getXmppConnection()
1350					.sendMessagePacket(packet);
1351		}
1352
1353	}
1354}