XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import java.security.SecureRandom;
   4import java.util.Collections;
   5import java.util.Comparator;
   6import java.util.Hashtable;
   7import java.util.List;
   8import java.util.Locale;
   9
  10import org.openintents.openpgp.util.OpenPgpApi;
  11import org.openintents.openpgp.util.OpenPgpServiceConnection;
  12
  13import net.java.otr4j.OtrException;
  14import net.java.otr4j.session.Session;
  15import net.java.otr4j.session.SessionStatus;
  16import eu.siacs.conversations.crypto.PgpEngine;
  17import eu.siacs.conversations.entities.Account;
  18import eu.siacs.conversations.entities.Contact;
  19import eu.siacs.conversations.entities.Conversation;
  20import eu.siacs.conversations.entities.Message;
  21import eu.siacs.conversations.entities.MucOptions;
  22import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  23import eu.siacs.conversations.entities.Presences;
  24import eu.siacs.conversations.generator.MessageGenerator;
  25import eu.siacs.conversations.parser.MessageParser;
  26import eu.siacs.conversations.parser.PresenceParser;
  27import eu.siacs.conversations.persistance.DatabaseBackend;
  28import eu.siacs.conversations.persistance.FileBackend;
  29import eu.siacs.conversations.ui.OnAccountListChangedListener;
  30import eu.siacs.conversations.ui.OnConversationListChangedListener;
  31import eu.siacs.conversations.ui.UiCallback;
  32import eu.siacs.conversations.utils.CryptoHelper;
  33import eu.siacs.conversations.utils.ExceptionHelper;
  34import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  35import eu.siacs.conversations.utils.PRNGFixes;
  36import eu.siacs.conversations.utils.PhoneHelper;
  37import eu.siacs.conversations.utils.UIHelper;
  38import eu.siacs.conversations.xml.Element;
  39import eu.siacs.conversations.xmpp.OnBindListener;
  40import eu.siacs.conversations.xmpp.OnContactStatusChanged;
  41import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  42import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
  43import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
  44import eu.siacs.conversations.xmpp.OnStatusChanged;
  45import eu.siacs.conversations.xmpp.OnTLSExceptionReceived;
  46import eu.siacs.conversations.xmpp.XmppConnection;
  47import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  48import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
  49import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
  50import eu.siacs.conversations.xmpp.stanzas.IqPacket;
  51import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
  52import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
  53import android.annotation.SuppressLint;
  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.net.ConnectivityManager;
  62import android.net.NetworkInfo;
  63import android.net.Uri;
  64import android.os.Binder;
  65import android.os.Bundle;
  66import android.os.IBinder;
  67import android.os.PowerManager;
  68import android.os.PowerManager.WakeLock;
  69import android.os.SystemClock;
  70import android.preference.PreferenceManager;
  71import android.provider.ContactsContract;
  72import android.util.Log;
  73
  74public class XmppConnectionService extends Service {
  75
  76	protected static final String LOGTAG = "xmppService";
  77	public DatabaseBackend databaseBackend;
  78	private FileBackend fileBackend;
  79
  80	public long startDate;
  81
  82	private static final int PING_MAX_INTERVAL = 300;
  83	private static final int PING_MIN_INTERVAL = 10;
  84	private static final int PING_TIMEOUT = 5;
  85	private static final int CONNECT_TIMEOUT = 60;
  86	private static final long CARBON_GRACE_PERIOD = 60000L;
  87
  88	private static String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
  89
  90	private MessageParser mMessageParser = new MessageParser(this);
  91	private PresenceParser mPresenceParser = new PresenceParser(this);
  92	private MessageGenerator mMessageGenerator = new MessageGenerator();
  93
  94	private List<Account> accounts;
  95	private List<Conversation> conversations = null;
  96	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
  97			this);
  98
  99	private OnConversationListChangedListener convChangedListener = null;
 100	private int convChangedListenerCount = 0;
 101	private OnAccountListChangedListener accountChangedListener = null;
 102	private OnTLSExceptionReceived tlsException = null;
 103	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 104
 105		@Override
 106		public void onContactStatusChanged(Contact contact, boolean online) {
 107			Conversation conversation = findActiveConversation(contact);
 108			if (conversation != null) {
 109				conversation.endOtrIfNeeded();
 110				if (online && (contact.getPresences().size() == 1)) {
 111					sendUnsendMessages(conversation);
 112				}
 113			}
 114		}
 115	};
 116
 117	public void setOnTLSExceptionReceivedListener(
 118			OnTLSExceptionReceived listener) {
 119		tlsException = listener;
 120	}
 121
 122	private SecureRandom mRandom;
 123
 124	private long lastCarbonMessageReceived = -CARBON_GRACE_PERIOD;
 125
 126	private ContentObserver contactObserver = new ContentObserver(null) {
 127		@Override
 128		public void onChange(boolean selfChange) {
 129			super.onChange(selfChange);
 130			Intent intent = new Intent(getApplicationContext(),
 131					XmppConnectionService.class);
 132			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 133			startService(intent);
 134		}
 135	};
 136
 137	private final IBinder mBinder = new XmppConnectionBinder();
 138	private OnMessagePacketReceived messageListener = new OnMessagePacketReceived() {
 139
 140		@Override
 141		public void onMessagePacketReceived(Account account,
 142				MessagePacket packet) {
 143			Message message = null;
 144			boolean notify = true;
 145			if (getPreferences().getBoolean(
 146					"notification_grace_period_after_carbon_received", true)) {
 147				notify = (SystemClock.elapsedRealtime() - lastCarbonMessageReceived) > CARBON_GRACE_PERIOD;
 148			}
 149
 150			if ((packet.getType() == MessagePacket.TYPE_CHAT)) {
 151				if ((packet.getBody() != null)
 152						&& (packet.getBody().startsWith("?OTR"))) {
 153					message = mMessageParser.parseOtrChat(packet, account);
 154					if (message != null) {
 155						message.markUnread();
 156					}
 157				} else if (packet.hasChild("body")) {
 158					message = mMessageParser.parseChat(packet, account);
 159					message.markUnread();
 160				} else if (packet.hasChild("received")
 161						|| (packet.hasChild("sent"))) {
 162					message = mMessageParser
 163							.parseCarbonMessage(packet, account);
 164					if (message != null) {
 165						if (message.getStatus() == Message.STATUS_SEND) {
 166							lastCarbonMessageReceived = SystemClock
 167									.elapsedRealtime();
 168							notify = false;
 169							message.getConversation().markRead();
 170						} else {
 171							message.markUnread();
 172						}
 173					}
 174				}
 175
 176			} else if (packet.getType() == MessagePacket.TYPE_GROUPCHAT) {
 177				message = mMessageParser.parseGroupchat(packet, account);
 178				if (message != null) {
 179					if (message.getStatus() == Message.STATUS_RECIEVED) {
 180						message.markUnread();
 181					} else {
 182						message.getConversation().markRead();
 183						notify = false;
 184					}
 185				}
 186			} else if (packet.getType() == MessagePacket.TYPE_ERROR) {
 187				mMessageParser.parseError(packet, account);
 188				return;
 189			} else if (packet.getType() == MessagePacket.TYPE_NORMAL) {
 190				mMessageParser.parseNormal(packet, account);
 191			}
 192			if ((message == null) || (message.getBody() == null)) {
 193				return;
 194			}
 195			if ((confirmMessages()) && ((packet.getId() != null))) {
 196				MessagePacket receivedPacket = new MessagePacket();
 197				receivedPacket.setType(MessagePacket.TYPE_NORMAL);
 198				receivedPacket.setTo(message.getCounterpart());
 199				receivedPacket.setFrom(account.getFullJid());
 200				if (packet.hasChild("markable", "urn:xmpp:chat-markers:0")) {
 201					Element received = receivedPacket.addChild("received",
 202							"urn:xmpp:chat-markers:0");
 203					received.setAttribute("id", packet.getId());
 204					account.getXmppConnection().sendMessagePacket(
 205							receivedPacket);
 206				} else if (packet.hasChild("request", "urn:xmpp:receipts")) {
 207					Element received = receivedPacket.addChild("received",
 208							"urn:xmpp:receipts");
 209					received.setAttribute("id", packet.getId());
 210					account.getXmppConnection().sendMessagePacket(
 211							receivedPacket);
 212				}
 213			}
 214			Conversation conversation = message.getConversation();
 215			conversation.getMessages().add(message);
 216			if (packet.getType() != MessagePacket.TYPE_ERROR) {
 217				databaseBackend.createMessage(message);
 218			}
 219			if (convChangedListener != null) {
 220				convChangedListener.onConversationListChanged();
 221			} else {
 222				UIHelper.updateNotification(getApplicationContext(),
 223						getConversations(), message.getConversation(), notify);
 224			}
 225		}
 226	};
 227	private OnStatusChanged statusListener = new OnStatusChanged() {
 228
 229		@Override
 230		public void onStatusChanged(Account account) {
 231			if (accountChangedListener != null) {
 232				accountChangedListener.onAccountListChangedListener();
 233			}
 234			if (account.getStatus() == Account.STATUS_ONLINE) {
 235				List<Conversation> conversations = getConversations();
 236				for (int i = 0; i < conversations.size(); ++i) {
 237					if (conversations.get(i).getAccount() == account) {
 238						conversations.get(i).startOtrIfNeeded();
 239						sendUnsendMessages(conversations.get(i));
 240					}
 241				}
 242				syncDirtyContacts(account);
 243				scheduleWakeupCall(PING_MAX_INTERVAL, true);
 244			} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 245				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 246					int timeToReconnect = mRandom.nextInt(50) + 10;
 247					scheduleWakeupCall(timeToReconnect, false);
 248				}
 249
 250			} else if (account.getStatus() == Account.STATUS_REGISTRATION_SUCCESSFULL) {
 251				databaseBackend.updateAccount(account);
 252				reconnectAccount(account, true);
 253			} else if ((account.getStatus() != Account.STATUS_CONNECTING)
 254					&& (account.getStatus() != Account.STATUS_NO_INTERNET)) {
 255				int next = account.getXmppConnection().getTimeToNextAttempt();
 256				Log.d(LOGTAG, account.getJid()
 257						+ ": error connecting account. try again in " + next
 258						+ "s for the "
 259						+ (account.getXmppConnection().getAttempt() + 1)
 260						+ " time");
 261				scheduleWakeupCall(next, false);
 262			}
 263			UIHelper.showErrorNotification(getApplicationContext(),
 264					getAccounts());
 265		}
 266	};
 267
 268	private OnPresencePacketReceived presenceListener = new OnPresencePacketReceived() {
 269
 270		@Override
 271		public void onPresencePacketReceived(final Account account,
 272				PresencePacket packet) {
 273			if (packet.hasChild("x", "http://jabber.org/protocol/muc#user")) {
 274				mPresenceParser.parseConferencePresence(packet, account);
 275			} else if (packet.hasChild("x", "http://jabber.org/protocol/muc")) {
 276				mPresenceParser.parseConferencePresence(packet, account);
 277			} else {
 278				mPresenceParser.parseContactPresence(packet, account);
 279			}
 280		}
 281	};
 282
 283	private OnIqPacketReceived unknownIqListener = new OnIqPacketReceived() {
 284
 285		@Override
 286		public void onIqPacketReceived(Account account, IqPacket packet) {
 287			if (packet.hasChild("query", "jabber:iq:roster")) {
 288				String from = packet.getFrom();
 289				if ((from == null) || (from.equals(account.getJid()))) {
 290					Element query = packet.findChild("query");
 291					processRosterItems(account, query);
 292				} else {
 293					Log.d(LOGTAG, "unauthorized roster push from: " + from);
 294				}
 295			} else if (packet
 296					.hasChild("open", "http://jabber.org/protocol/ibb")
 297					|| packet
 298							.hasChild("data", "http://jabber.org/protocol/ibb")) {
 299				XmppConnectionService.this.mJingleConnectionManager
 300						.deliverIbbPacket(account, packet);
 301			} else if (packet.hasChild("query",
 302					"http://jabber.org/protocol/disco#info")) {
 303				IqPacket iqResponse = packet
 304						.generateRespone(IqPacket.TYPE_RESULT);
 305				Element query = iqResponse.addChild("query",
 306						"http://jabber.org/protocol/disco#info");
 307				query.addChild("feature").setAttribute("var",
 308						"urn:xmpp:jingle:1");
 309				query.addChild("feature").setAttribute("var",
 310						"urn:xmpp:jingle:apps:file-transfer:3");
 311				query.addChild("feature").setAttribute("var",
 312						"urn:xmpp:jingle:transports:s5b:1");
 313				query.addChild("feature").setAttribute("var",
 314						"urn:xmpp:jingle:transports:ibb:1");
 315				if (confirmMessages()) {
 316					query.addChild("feature").setAttribute("var",
 317							"urn:xmpp:receipts");
 318				}
 319				account.getXmppConnection().sendIqPacket(iqResponse, null);
 320			} else {
 321				if ((packet.getType() == IqPacket.TYPE_GET)
 322						|| (packet.getType() == IqPacket.TYPE_SET)) {
 323					IqPacket response = packet
 324							.generateRespone(IqPacket.TYPE_ERROR);
 325					Element error = response.addChild("error");
 326					error.setAttribute("type", "cancel");
 327					error.addChild("feature-not-implemented",
 328							"urn:ietf:params:xml:ns:xmpp-stanzas");
 329					account.getXmppConnection().sendIqPacket(response, null);
 330				}
 331			}
 332		}
 333	};
 334
 335	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 336
 337		@Override
 338		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 339			mJingleConnectionManager.deliverPacket(account, packet);
 340		}
 341	};
 342
 343	private OpenPgpServiceConnection pgpServiceConnection;
 344	private PgpEngine mPgpEngine = null;
 345	private Intent pingIntent;
 346	private PendingIntent pendingPingIntent = null;
 347	private WakeLock wakeLock;
 348	private PowerManager pm;
 349
 350	public PgpEngine getPgpEngine() {
 351		if (pgpServiceConnection.isBound()) {
 352			if (this.mPgpEngine == null) {
 353				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 354						getApplicationContext(),
 355						pgpServiceConnection.getService()), this);
 356			}
 357			return mPgpEngine;
 358		} else {
 359			return null;
 360		}
 361
 362	}
 363
 364	public FileBackend getFileBackend() {
 365		return this.fileBackend;
 366	}
 367
 368	public Message attachImageToConversation(final Conversation conversation,
 369			final Uri uri, final UiCallback<Message> callback) {
 370		final Message message;
 371		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 372			message = new Message(conversation, "",
 373					Message.ENCRYPTION_DECRYPTED);
 374		} else {
 375			message = new Message(conversation, "",
 376					conversation.getNextEncryption());
 377		}
 378		message.setPresence(conversation.getNextPresence());
 379		message.setType(Message.TYPE_IMAGE);
 380		message.setStatus(Message.STATUS_OFFERED);
 381		new Thread(new Runnable() {
 382
 383			@Override
 384			public void run() {
 385				try {
 386					getFileBackend().copyImageToPrivateStorage(message, uri);
 387					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 388						getPgpEngine().encrypt(message, callback);
 389					} else {
 390						callback.success(message);
 391					}
 392				} catch (FileBackend.ImageCopyException e) {
 393					callback.error(e.getResId(), message);
 394				}
 395			}
 396		}).start();
 397		return message;
 398	}
 399
 400	public Conversation findMuc(String name, Account account) {
 401		for (Conversation conversation : this.conversations) {
 402			if (conversation.getContactJid().split("/")[0].equals(name)
 403					&& (conversation.getAccount() == account)) {
 404				return conversation;
 405			}
 406		}
 407		return null;
 408	}
 409
 410	private void processRosterItems(Account account, Element elements) {
 411		String version = elements.getAttribute("ver");
 412		if (version != null) {
 413			account.getRoster().setVersion(version);
 414		}
 415		for (Element item : elements.getChildren()) {
 416			if (item.getName().equals("item")) {
 417				String jid = item.getAttribute("jid");
 418				String name = item.getAttribute("name");
 419				String subscription = item.getAttribute("subscription");
 420				Contact contact = account.getRoster().getContact(jid);
 421				if (!contact.getOption(Contact.Options.DIRTY_PUSH)) {
 422					contact.setServerName(name);
 423				}
 424				if (subscription.equals("remove")) {
 425					contact.resetOption(Contact.Options.IN_ROSTER);
 426					contact.resetOption(Contact.Options.DIRTY_DELETE);
 427				} else {
 428					contact.setOption(Contact.Options.IN_ROSTER);
 429					contact.parseSubscriptionFromElement(item);
 430				}
 431			}
 432		}
 433	}
 434
 435	public class XmppConnectionBinder extends Binder {
 436		public XmppConnectionService getService() {
 437			return XmppConnectionService.this;
 438		}
 439	}
 440
 441	@Override
 442	public int onStartCommand(Intent intent, int flags, int startId) {
 443		if ((intent != null)
 444				&& (ACTION_MERGE_PHONE_CONTACTS.equals(intent.getAction()))) {
 445			mergePhoneContactsWithRoster();
 446			return START_STICKY;
 447		} else if ((intent != null)
 448				&& (Intent.ACTION_SHUTDOWN.equals(intent.getAction()))) {
 449			logoutAndSave();
 450			return START_NOT_STICKY;
 451		}
 452		this.wakeLock.acquire();
 453		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 454				.getSystemService(Context.CONNECTIVITY_SERVICE);
 455		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 456		boolean isConnected = activeNetwork != null
 457				&& activeNetwork.isConnected();
 458
 459		for (Account account : accounts) {
 460			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 461				if (!isConnected) {
 462					account.setStatus(Account.STATUS_NO_INTERNET);
 463					if (statusListener != null) {
 464						statusListener.onStatusChanged(account);
 465					}
 466				} else {
 467					if (account.getStatus() == Account.STATUS_NO_INTERNET) {
 468						account.setStatus(Account.STATUS_OFFLINE);
 469						if (statusListener != null) {
 470							statusListener.onStatusChanged(account);
 471						}
 472					}
 473					if (account.getStatus() == Account.STATUS_ONLINE) {
 474						long lastReceived = account.getXmppConnection().lastPaketReceived;
 475						long lastSent = account.getXmppConnection().lastPingSent;
 476						if (lastSent - lastReceived >= PING_TIMEOUT * 1000) {
 477							Log.d(LOGTAG, account.getJid() + ": ping timeout");
 478							this.reconnectAccount(account, true);
 479						} else if (SystemClock.elapsedRealtime() - lastReceived >= PING_MIN_INTERVAL * 1000) {
 480							account.getXmppConnection().sendPing();
 481							account.getXmppConnection().lastPingSent = SystemClock
 482									.elapsedRealtime();
 483							this.scheduleWakeupCall(2, false);
 484						}
 485					} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 486						if (account.getXmppConnection() == null) {
 487							account.setXmppConnection(this
 488									.createConnection(account));
 489						}
 490						account.getXmppConnection().lastPingSent = SystemClock
 491								.elapsedRealtime();
 492						new Thread(account.getXmppConnection()).start();
 493					} else if ((account.getStatus() == Account.STATUS_CONNECTING)
 494							&& ((SystemClock.elapsedRealtime() - account
 495									.getXmppConnection().lastConnect) / 1000 >= CONNECT_TIMEOUT)) {
 496						Log.d(LOGTAG, account.getJid()
 497								+ ": time out during connect reconnecting");
 498						reconnectAccount(account, true);
 499					} else {
 500						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 501							reconnectAccount(account, true);
 502						}
 503					}
 504					// in any case. reschedule wakup call
 505					this.scheduleWakeupCall(PING_MAX_INTERVAL, true);
 506				}
 507				if (accountChangedListener != null) {
 508					accountChangedListener.onAccountListChangedListener();
 509				}
 510			}
 511		}
 512		if (wakeLock.isHeld()) {
 513			wakeLock.release();
 514		}
 515		return START_STICKY;
 516	}
 517
 518	@SuppressLint("TrulyRandom")
 519	@Override
 520	public void onCreate() {
 521		ExceptionHelper.init(getApplicationContext());
 522		PRNGFixes.apply();
 523		this.mRandom = new SecureRandom();
 524		this.databaseBackend = DatabaseBackend
 525				.getInstance(getApplicationContext());
 526		this.fileBackend = new FileBackend(getApplicationContext());
 527		this.accounts = databaseBackend.getAccounts();
 528
 529		for (Account account : this.accounts) {
 530			this.databaseBackend.readRoster(account.getRoster());
 531		}
 532		this.mergePhoneContactsWithRoster();
 533		this.getConversations();
 534
 535		getContentResolver().registerContentObserver(
 536				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 537		this.pgpServiceConnection = new OpenPgpServiceConnection(
 538				getApplicationContext(), "org.sufficientlysecure.keychain");
 539		this.pgpServiceConnection.bindToService();
 540
 541		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 542		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
 543				"XmppConnectionService");
 544	}
 545
 546	@Override
 547	public void onDestroy() {
 548		super.onDestroy();
 549		this.logoutAndSave();
 550	}
 551
 552	@Override
 553	public void onTaskRemoved(Intent rootIntent) {
 554		super.onTaskRemoved(rootIntent);
 555		this.logoutAndSave();
 556	}
 557
 558	private void logoutAndSave() {
 559		for (Account account : accounts) {
 560			databaseBackend.writeRoster(account.getRoster());
 561			if (account.getXmppConnection() != null) {
 562				disconnect(account, false);
 563			}
 564		}
 565		Context context = getApplicationContext();
 566		AlarmManager alarmManager = (AlarmManager) context
 567				.getSystemService(Context.ALARM_SERVICE);
 568		Intent intent = new Intent(context, EventReceiver.class);
 569		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 570		Log.d(LOGTAG, "good bye");
 571		stopSelf();
 572	}
 573
 574	protected void scheduleWakeupCall(int seconds, boolean ping) {
 575		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 576		Context context = getApplicationContext();
 577		AlarmManager alarmManager = (AlarmManager) context
 578				.getSystemService(Context.ALARM_SERVICE);
 579
 580		if (ping) {
 581			if (this.pingIntent == null) {
 582				this.pingIntent = new Intent(context, EventReceiver.class);
 583				this.pingIntent.setAction("ping");
 584				this.pingIntent.putExtra("time", timeToWake);
 585				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 586						this.pingIntent, 0);
 587				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 588						timeToWake, pendingPingIntent);
 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				}
 600			}
 601		} else {
 602			Intent intent = new Intent(context, EventReceiver.class);
 603			intent.setAction("ping_check");
 604			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 605					intent, 0);
 606			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 607					alarmIntent);
 608		}
 609
 610	}
 611
 612	public XmppConnection createConnection(Account account) {
 613		SharedPreferences sharedPref = getPreferences();
 614		account.setResource(sharedPref.getString("resource", "mobile")
 615				.toLowerCase(Locale.getDefault()));
 616		XmppConnection connection = new XmppConnection(account, this);
 617		connection.setOnMessagePacketReceivedListener(this.messageListener);
 618		connection.setOnStatusChangedListener(this.statusListener);
 619		connection.setOnPresencePacketReceivedListener(this.presenceListener);
 620		connection
 621				.setOnUnregisteredIqPacketReceivedListener(this.unknownIqListener);
 622		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 623		connection
 624				.setOnTLSExceptionReceivedListener(new OnTLSExceptionReceived() {
 625
 626					@Override
 627					public void onTLSExceptionReceived(String fingerprint,
 628							Account account) {
 629						Log.d(LOGTAG, "tls exception arrived in service");
 630						if (tlsException != null) {
 631							tlsException.onTLSExceptionReceived(fingerprint,
 632									account);
 633						}
 634					}
 635				});
 636		connection.setOnBindListener(new OnBindListener() {
 637
 638			@Override
 639			public void onBind(final Account account) {
 640				account.getRoster().clearPresences();
 641				account.clearPresences(); // self presences
 642				fetchRosterFromServer(account);
 643				sendPresence(account);
 644				connectMultiModeConversations(account);
 645				if (convChangedListener != null) {
 646					convChangedListener.onConversationListChanged();
 647				}
 648			}
 649		});
 650		return connection;
 651	}
 652
 653	synchronized public void sendMessage(Message message) {
 654		Account account = message.getConversation().getAccount();
 655		Conversation conv = message.getConversation();
 656		MessagePacket packet = null;
 657		boolean saveInDb = true;
 658		boolean send = false;
 659		if (account.getStatus() == Account.STATUS_ONLINE) {
 660			if (message.getType() == Message.TYPE_IMAGE) {
 661				if (message.getPresence() != null) {
 662					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 663						if (!conv.hasValidOtrSession()
 664								&& (message.getPresence() != null)) {
 665							conv.startOtrSession(getApplicationContext(),
 666									message.getPresence(), true);
 667							message.setStatus(Message.STATUS_WAITING);
 668						} else if (conv.hasValidOtrSession()
 669								&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 670							mJingleConnectionManager
 671									.createNewConnection(message);
 672						} else if (message.getPresence() == null) {
 673							message.setStatus(Message.STATUS_WAITING);
 674						}
 675					} else {
 676						mJingleConnectionManager.createNewConnection(message);
 677					}
 678				} else {
 679					message.setStatus(Message.STATUS_WAITING);
 680				}
 681			} else {
 682				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 683					if (!conv.hasValidOtrSession()
 684							&& (message.getPresence() != null)) {
 685						conv.startOtrSession(getApplicationContext(),
 686								message.getPresence(), true);
 687						message.setStatus(Message.STATUS_WAITING);
 688					} else if (conv.hasValidOtrSession()
 689							&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 690						message.setPresence(conv.getOtrSession().getSessionID().getUserID());
 691						try {
 692							packet = mMessageGenerator.generateOtrChat(message);
 693							send = true;
 694							message.setStatus(Message.STATUS_SEND);
 695						} catch (OtrException e) {
 696							Log.e(LOGTAG,"error generating otr packet");
 697							packet = null;
 698						}
 699					} else if (message.getPresence() == null) {
 700						message.setStatus(Message.STATUS_WAITING);
 701					}
 702				} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 703					message.getConversation().endOtrIfNeeded();
 704					packet = mMessageGenerator.generatePgpChat(message);
 705					message.setStatus(Message.STATUS_SEND);
 706					send = true;
 707				} else {
 708					message.getConversation().endOtrIfNeeded();
 709					if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 710						message.setStatus(Message.STATUS_SEND);
 711					}
 712					packet = mMessageGenerator.generateChat(message);
 713					send = true;
 714				}
 715			}
 716		} else {
 717			message.setStatus(Message.STATUS_WAITING);
 718			if (message.getType() == Message.TYPE_TEXT) {
 719				if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 720					String pgpBody = message.getEncryptedBody();
 721					String decryptedBody = message.getBody();
 722					message.setBody(pgpBody);
 723					databaseBackend.createMessage(message);
 724					saveInDb = false;
 725					message.setBody(decryptedBody);
 726				} else if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 727					if (conv.hasValidOtrSession()) {
 728						message.setPresence(conv.getOtrSession().getSessionID()
 729								.getUserID());
 730					} else if (!conv.hasValidOtrSession()
 731							&& message.getPresence() != null) {
 732						conv.startOtrSession(getApplicationContext(),
 733								message.getPresence(), false);
 734					}
 735				}
 736			}
 737
 738		}
 739		if (saveInDb) {
 740			databaseBackend.createMessage(message);
 741		}
 742		conv.getMessages().add(message);
 743		if (convChangedListener != null) {
 744			convChangedListener.onConversationListChanged();
 745		}
 746		if ((send) && (packet != null)) {
 747			account.getXmppConnection().sendMessagePacket(packet);
 748		}
 749
 750	}
 751
 752	private void sendUnsendMessages(Conversation conversation) {
 753		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 754			int status = conversation.getMessages().get(i).getStatus();
 755			if (status == Message.STATUS_WAITING) {
 756				resendMessage(conversation.getMessages().get(i));
 757			}
 758		}
 759	}
 760
 761	private void resendMessage(Message message) {
 762		Account account = message.getConversation().getAccount();
 763		MessagePacket packet = null;
 764		if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 765			Presences presences = message.getConversation().getContact()
 766					.getPresences();
 767			if (!message.getConversation().hasValidOtrSession()) {
 768				if ((message.getPresence() != null)
 769						&& (presences.has(message.getPresence()))) {
 770					message.getConversation().startOtrSession(
 771							getApplicationContext(), message.getPresence(),
 772							true);
 773				} else {
 774					if (presences.size() == 1) {
 775						String presence = presences.asStringArray()[0];
 776						message.getConversation().startOtrSession(
 777								getApplicationContext(), presence, true);
 778					}
 779				}
 780			} else {
 781				if (message.getConversation().getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 782					if (message.getType() == Message.TYPE_TEXT) {
 783						packet = mMessageGenerator.generateOtrChat(message,true);
 784					} else if (message.getType() == Message.TYPE_IMAGE) {
 785						mJingleConnectionManager.createNewConnection(message);
 786					}
 787				}
 788			}
 789		} else if (message.getType() == Message.TYPE_TEXT) {
 790			if (message.getEncryption() == Message.ENCRYPTION_NONE) {
 791				packet = mMessageGenerator.generateChat(message,true);
 792			} else if ((message.getEncryption() == Message.ENCRYPTION_DECRYPTED)||(message.getEncryption() == Message.ENCRYPTION_PGP)) {
 793				packet = mMessageGenerator.generatePgpChat(message,true);
 794			}
 795		} else if (message.getType() == Message.TYPE_IMAGE) {
 796			Presences presences = message.getConversation().getContact()
 797					.getPresences();
 798			if ((message.getPresence() != null)
 799					&& (presences.has(message.getPresence()))) {
 800				markMessage(message, Message.STATUS_OFFERED);
 801				mJingleConnectionManager.createNewConnection(message);
 802			} else {
 803				if (presences.size() == 1) {
 804					String presence = presences.asStringArray()[0];
 805					message.setPresence(presence);
 806					markMessage(message, Message.STATUS_OFFERED);
 807					mJingleConnectionManager.createNewConnection(message);
 808				}
 809			}
 810		}
 811		if (packet != null) {
 812			account.getXmppConnection().sendMessagePacket(packet);
 813			markMessage(message, Message.STATUS_SEND);
 814		}
 815	}
 816
 817	public void fetchRosterFromServer(Account account) {
 818		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 819		if (!"".equals(account.getRosterVersion())) {
 820			Log.d(LOGTAG, account.getJid() + ": fetching roster version "
 821					+ account.getRosterVersion());
 822		} else {
 823			Log.d(LOGTAG, account.getJid() + ": fetching roster");
 824		}
 825		iqPacket.query("jabber:iq:roster").setAttribute("ver",
 826				account.getRosterVersion());
 827		account.getXmppConnection().sendIqPacket(iqPacket,
 828				new OnIqPacketReceived() {
 829
 830					@Override
 831					public void onIqPacketReceived(final Account account,
 832							IqPacket packet) {
 833						Element roster = packet.findChild("query");
 834						if (roster != null) {
 835							account.getRoster().markAllAsNotInRoster();
 836							processRosterItems(account, roster);
 837						}
 838					}
 839				});
 840	}
 841
 842	private void mergePhoneContactsWithRoster() {
 843		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 844				new OnPhoneContactsLoadedListener() {
 845					@Override
 846					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
 847						for (Account account : accounts) {
 848							account.getRoster().clearSystemAccounts();
 849						}
 850						for (Bundle phoneContact : phoneContacts) {
 851							for (Account account : accounts) {
 852								String jid = phoneContact.getString("jid");
 853								Contact contact = account.getRoster()
 854										.getContact(jid);
 855								String systemAccount = phoneContact
 856										.getInt("phoneid")
 857										+ "#"
 858										+ phoneContact.getString("lookup");
 859								contact.setSystemAccount(systemAccount);
 860								contact.setPhotoUri(phoneContact
 861										.getString("photouri"));
 862								contact.setSystemName(phoneContact
 863										.getString("displayname"));
 864							}
 865						}
 866					}
 867				});
 868	}
 869
 870	public List<Conversation> getConversations() {
 871		if (this.conversations == null) {
 872			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
 873			for (Account account : this.accounts) {
 874				accountLookupTable.put(account.getUuid(), account);
 875			}
 876			this.conversations = databaseBackend
 877					.getConversations(Conversation.STATUS_AVAILABLE);
 878			for (Conversation conv : this.conversations) {
 879				Account account = accountLookupTable.get(conv.getAccountUuid());
 880				conv.setAccount(account);
 881				conv.setMessages(databaseBackend.getMessages(conv, 50));
 882			}
 883		}
 884		Collections.sort(this.conversations, new Comparator<Conversation>() {
 885			@Override
 886			public int compare(Conversation lhs, Conversation rhs) {
 887				Message left = lhs.getLatestMessage();
 888				Message right = rhs.getLatestMessage();
 889				if (left.getTimeSent() > right.getTimeSent()) {
 890					return -1;
 891				} else if (left.getTimeSent() < right.getTimeSent()) {
 892					return 1;
 893				} else {
 894					return 0;
 895				}
 896			}
 897		});
 898		return this.conversations;
 899	}
 900
 901	public List<Message> getMoreMessages(Conversation conversation,
 902			long timestamp) {
 903		List<Message> messages = databaseBackend.getMessages(conversation, 50,
 904				timestamp);
 905		for (Message message : messages) {
 906			message.setConversation(conversation);
 907		}
 908		return messages;
 909	}
 910
 911	public List<Account> getAccounts() {
 912		return this.accounts;
 913	}
 914
 915	public Conversation findActiveConversation(Contact contact) {
 916		for (Conversation conversation : this.getConversations()) {
 917			if (conversation.getContact() == contact) {
 918				return conversation;
 919			}
 920		}
 921		return null;
 922	}
 923
 924	public Conversation findOrCreateConversation(Account account, String jid,
 925			boolean muc) {
 926		for (Conversation conv : this.getConversations()) {
 927			if ((conv.getAccount().equals(account))
 928					&& (conv.getContactJid().split("/")[0].equals(jid))) {
 929				return conv;
 930			}
 931		}
 932		Conversation conversation = databaseBackend.findConversation(account,
 933				jid);
 934		if (conversation != null) {
 935			conversation.setStatus(Conversation.STATUS_AVAILABLE);
 936			conversation.setAccount(account);
 937			if (muc) {
 938				conversation.setMode(Conversation.MODE_MULTI);
 939			} else {
 940				conversation.setMode(Conversation.MODE_SINGLE);
 941			}
 942			conversation.setMessages(databaseBackend.getMessages(conversation,
 943					50));
 944			this.databaseBackend.updateConversation(conversation);
 945		} else {
 946			String conversationName;
 947			Contact contact = account.getRoster().getContact(jid);
 948			if (contact != null) {
 949				conversationName = contact.getDisplayName();
 950			} else {
 951				conversationName = jid.split("@")[0];
 952			}
 953			if (muc) {
 954				conversation = new Conversation(conversationName, account, jid,
 955						Conversation.MODE_MULTI);
 956			} else {
 957				conversation = new Conversation(conversationName, account, jid,
 958						Conversation.MODE_SINGLE);
 959			}
 960			this.databaseBackend.createConversation(conversation);
 961		}
 962		this.conversations.add(conversation);
 963		if ((account.getStatus() == Account.STATUS_ONLINE)
 964				&& (conversation.getMode() == Conversation.MODE_MULTI)) {
 965			joinMuc(conversation);
 966		}
 967		if (this.convChangedListener != null) {
 968			this.convChangedListener.onConversationListChanged();
 969		}
 970		return conversation;
 971	}
 972
 973	public void archiveConversation(Conversation conversation) {
 974		if (conversation.getMode() == Conversation.MODE_MULTI) {
 975			leaveMuc(conversation);
 976		} else {
 977			conversation.endOtrIfNeeded();
 978		}
 979		this.databaseBackend.updateConversation(conversation);
 980		this.conversations.remove(conversation);
 981		if (this.convChangedListener != null) {
 982			this.convChangedListener.onConversationListChanged();
 983		}
 984	}
 985
 986	public void clearConversationHistory(Conversation conversation) {
 987		this.databaseBackend.deleteMessagesInConversation(conversation);
 988		this.fileBackend.removeFiles(conversation);
 989		conversation.getMessages().clear();
 990		if (this.convChangedListener != null) {
 991			this.convChangedListener.onConversationListChanged();
 992		}
 993	}
 994
 995	public int getConversationCount() {
 996		return this.databaseBackend.getConversationCount();
 997	}
 998
 999	public void createAccount(Account account) {
1000		databaseBackend.createAccount(account);
1001		this.accounts.add(account);
1002		this.reconnectAccount(account, false);
1003		if (accountChangedListener != null)
1004			accountChangedListener.onAccountListChangedListener();
1005	}
1006
1007	public void updateAccount(Account account) {
1008		this.statusListener.onStatusChanged(account);
1009		databaseBackend.updateAccount(account);
1010		reconnectAccount(account, false);
1011		if (accountChangedListener != null) {
1012			accountChangedListener.onAccountListChangedListener();
1013		}
1014		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
1015	}
1016
1017	public void deleteAccount(Account account) {
1018		if (account.getXmppConnection() != null) {
1019			this.disconnect(account, true);
1020		}
1021		databaseBackend.deleteAccount(account);
1022		this.accounts.remove(account);
1023		if (accountChangedListener != null) {
1024			accountChangedListener.onAccountListChangedListener();
1025		}
1026		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
1027	}
1028
1029	public void setOnConversationListChangedListener(
1030			OnConversationListChangedListener listener) {
1031		this.convChangedListener = listener;
1032		this.convChangedListenerCount++;
1033	}
1034
1035	public void removeOnConversationListChangedListener() {
1036		this.convChangedListenerCount--;
1037		if (this.convChangedListenerCount == 0) {
1038			this.convChangedListener = null;
1039		}
1040	}
1041
1042	public void setOnAccountListChangedListener(
1043			OnAccountListChangedListener listener) {
1044		this.accountChangedListener = listener;
1045	}
1046
1047	public void removeOnAccountListChangedListener() {
1048		this.accountChangedListener = null;
1049	}
1050
1051	public void connectMultiModeConversations(Account account) {
1052		List<Conversation> conversations = getConversations();
1053		for (int i = 0; i < conversations.size(); i++) {
1054			Conversation conversation = conversations.get(i);
1055			if ((conversation.getMode() == Conversation.MODE_MULTI)
1056					&& (conversation.getAccount() == account)) {
1057				joinMuc(conversation);
1058			}
1059		}
1060	}
1061
1062	public void joinMuc(Conversation conversation) {
1063		Account account = conversation.getAccount();
1064		String[] mucParts = conversation.getContactJid().split("/");
1065		String muc;
1066		String nick;
1067		if (mucParts.length == 2) {
1068			muc = mucParts[0];
1069			nick = mucParts[1];
1070		} else {
1071			muc = mucParts[0];
1072			nick = account.getUsername();
1073		}
1074		PresencePacket packet = new PresencePacket();
1075		packet.setAttribute("to", muc + "/" + nick);
1076		Element x = new Element("x");
1077		x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1078		String sig = account.getPgpSignature();
1079		if (sig != null) {
1080			packet.addChild("status").setContent("online");
1081			packet.addChild("x", "jabber:x:signed").setContent(sig);
1082		}
1083		if (conversation.getMessages().size() != 0) {
1084			long lastMsgTime = conversation.getLatestMessage().getTimeSent();
1085			long diff = (System.currentTimeMillis() - lastMsgTime) / 1000 - 1;
1086			x.addChild("history").setAttribute("seconds", diff + "");
1087		}
1088		packet.addChild(x);
1089		account.getXmppConnection().sendPresencePacket(packet);
1090	}
1091
1092	private OnRenameListener renameListener = null;
1093
1094	public void setOnRenameListener(OnRenameListener listener) {
1095		this.renameListener = listener;
1096	}
1097
1098	public void renameInMuc(final Conversation conversation, final String nick) {
1099		final MucOptions options = conversation.getMucOptions();
1100		if (options.online()) {
1101			Account account = conversation.getAccount();
1102			options.setOnRenameListener(new OnRenameListener() {
1103
1104				@Override
1105				public void onRename(boolean success) {
1106					if (renameListener != null) {
1107						renameListener.onRename(success);
1108					}
1109					if (success) {
1110						String jid = conversation.getContactJid().split("/")[0]
1111								+ "/" + nick;
1112						conversation.setContactJid(jid);
1113						databaseBackend.updateConversation(conversation);
1114					}
1115				}
1116			});
1117			options.flagAboutToRename();
1118			PresencePacket packet = new PresencePacket();
1119			packet.setAttribute("to",
1120					conversation.getContactJid().split("/")[0] + "/" + nick);
1121			packet.setAttribute("from", conversation.getAccount().getFullJid());
1122
1123			String sig = account.getPgpSignature();
1124			if (sig != null) {
1125				packet.addChild("status").setContent("online");
1126				packet.addChild("x", "jabber:x:signed").setContent(sig);
1127			}
1128
1129			account.getXmppConnection().sendPresencePacket(packet, null);
1130		} else {
1131			String jid = conversation.getContactJid().split("/")[0] + "/"
1132					+ nick;
1133			conversation.setContactJid(jid);
1134			databaseBackend.updateConversation(conversation);
1135			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
1136				joinMuc(conversation);
1137			}
1138		}
1139	}
1140
1141	public void leaveMuc(Conversation conversation) {
1142		PresencePacket packet = new PresencePacket();
1143		packet.setAttribute("to", conversation.getContactJid().split("/")[0]
1144				+ "/" + conversation.getMucOptions().getNick());
1145		packet.setAttribute("from", conversation.getAccount().getFullJid());
1146		packet.setAttribute("type", "unavailable");
1147		Log.d(LOGTAG, "send leaving muc " + packet);
1148		conversation.getAccount().getXmppConnection()
1149				.sendPresencePacket(packet);
1150		conversation.getMucOptions().setOffline();
1151	}
1152
1153	public void disconnect(Account account, boolean force) {
1154		if ((account.getStatus() == Account.STATUS_ONLINE)
1155				|| (account.getStatus() == Account.STATUS_DISABLED)) {
1156			if (!force) {
1157				List<Conversation> conversations = getConversations();
1158				for (int i = 0; i < conversations.size(); i++) {
1159					Conversation conversation = conversations.get(i);
1160					if (conversation.getAccount() == account) {
1161						if (conversation.getMode() == Conversation.MODE_MULTI) {
1162							leaveMuc(conversation);
1163						} else {
1164							conversation.endOtrIfNeeded();
1165						}
1166					}
1167				}
1168			}
1169			account.getXmppConnection().disconnect(force);
1170		}
1171	}
1172
1173	@Override
1174	public IBinder onBind(Intent intent) {
1175		return mBinder;
1176	}
1177
1178	public void updateMessage(Message message) {
1179		databaseBackend.updateMessage(message);
1180	}
1181
1182	protected void syncDirtyContacts(Account account) {
1183		for (Contact contact : account.getRoster().getContacts()) {
1184			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1185				pushContactToServer(contact);
1186			}
1187			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1188				Log.d(LOGTAG, "dirty delete");
1189				deleteContactOnServer(contact);
1190			}
1191		}
1192	}
1193
1194	public void createContact(Contact contact) {
1195		SharedPreferences sharedPref = getPreferences();
1196		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1197		if (autoGrant) {
1198			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1199			contact.setOption(Contact.Options.ASKING);
1200		}
1201		pushContactToServer(contact);
1202	}
1203
1204	public void onOtrSessionEstablished(Conversation conversation) {
1205		Account account = conversation.getAccount();
1206		List<Message> messages = conversation.getMessages();
1207		Session otrSession = conversation.getOtrSession();
1208		Log.d(LOGTAG, account.getJid() + " otr session established with "
1209				+ conversation.getContactJid() + "/"
1210				+ otrSession.getSessionID().getUserID());
1211		for (int i = 0; i < messages.size(); ++i) {
1212			Message msg = messages.get(i);
1213			if ((msg.getStatus() == Message.STATUS_UNSEND || msg.getStatus() == Message.STATUS_WAITING)
1214					&& (msg.getEncryption() == Message.ENCRYPTION_OTR)) {
1215				msg.setPresence(otrSession.getSessionID().getUserID());
1216				if (msg.getType() == Message.TYPE_TEXT) {
1217					MessagePacket outPacket = mMessageGenerator.generateOtrChat(msg,true);
1218					if (outPacket!=null) {
1219						msg.setStatus(Message.STATUS_SEND);
1220						databaseBackend.updateMessage(msg);
1221						account.getXmppConnection().sendMessagePacket(outPacket);
1222					}
1223				} else if (msg.getType() == Message.TYPE_IMAGE) {
1224					mJingleConnectionManager.createNewConnection(msg);
1225				}
1226			}
1227		}
1228		updateUi(conversation, false);
1229	}
1230
1231	public boolean renewSymmetricKey(Conversation conversation) {
1232		Account account = conversation.getAccount();
1233		byte[] symmetricKey = new byte[32];
1234		this.mRandom.nextBytes(symmetricKey);
1235		Session otrSession = conversation.getOtrSession();
1236		if (otrSession != null) {
1237			MessagePacket packet = new MessagePacket();
1238			packet.setType(MessagePacket.TYPE_CHAT);
1239			packet.setFrom(account.getFullJid());
1240			packet.addChild("private", "urn:xmpp:carbons:2");
1241			packet.addChild("no-copy", "urn:xmpp:hints");
1242			packet.setTo(otrSession.getSessionID().getAccountID() + "/"
1243					+ otrSession.getSessionID().getUserID());
1244			try {
1245				packet.setBody(otrSession
1246						.transformSending(CryptoHelper.FILETRANSFER
1247								+ CryptoHelper.bytesToHex(symmetricKey)));
1248				account.getXmppConnection().sendMessagePacket(packet);
1249				conversation.setSymmetricKey(symmetricKey);
1250				return true;
1251			} catch (OtrException e) {
1252				return false;
1253			}
1254		}
1255		return false;
1256	}
1257
1258	public void pushContactToServer(Contact contact) {
1259		contact.resetOption(Contact.Options.DIRTY_DELETE);
1260		Account account = contact.getAccount();
1261		if (account.getStatus() == Account.STATUS_ONLINE) {
1262			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1263			iq.query("jabber:iq:roster").addChild(contact.asElement());
1264			account.getXmppConnection().sendIqPacket(iq, null);
1265			if (contact.getOption(Contact.Options.ASKING)) {
1266				requestPresenceUpdatesFrom(contact);
1267			}
1268			if (contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1269				Log.d("xmppService", "contact had pending subscription");
1270				sendPresenceUpdatesTo(contact);
1271			}
1272			contact.resetOption(Contact.Options.DIRTY_PUSH);
1273		} else {
1274			contact.setOption(Contact.Options.DIRTY_PUSH);
1275		}
1276	}
1277
1278	public void deleteContactOnServer(Contact contact) {
1279		contact.resetOption(Contact.Options.DIRTY_PUSH);
1280		Account account = contact.getAccount();
1281		if (account.getStatus() == Account.STATUS_ONLINE) {
1282			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1283			Element item = iq.query("jabber:iq:roster").addChild("item");
1284			item.setAttribute("jid", contact.getJid());
1285			item.setAttribute("subscription", "remove");
1286			account.getXmppConnection().sendIqPacket(iq, null);
1287			contact.resetOption(Contact.Options.DIRTY_DELETE);
1288		} else {
1289			contact.setOption(Contact.Options.DIRTY_DELETE);
1290		}
1291	}
1292
1293	public void requestPresenceUpdatesFrom(Contact contact) {
1294		PresencePacket packet = new PresencePacket();
1295		packet.setAttribute("type", "subscribe");
1296		packet.setAttribute("to", contact.getJid());
1297		packet.setAttribute("from", contact.getAccount().getJid());
1298		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1299	}
1300
1301	public void stopPresenceUpdatesFrom(Contact contact) {
1302		PresencePacket packet = new PresencePacket();
1303		packet.setAttribute("type", "unsubscribe");
1304		packet.setAttribute("to", contact.getJid());
1305		packet.setAttribute("from", contact.getAccount().getJid());
1306		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1307	}
1308
1309	public void stopPresenceUpdatesTo(Contact contact) {
1310		PresencePacket packet = new PresencePacket();
1311		packet.setAttribute("type", "unsubscribed");
1312		packet.setAttribute("to", contact.getJid());
1313		packet.setAttribute("from", contact.getAccount().getJid());
1314		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1315	}
1316
1317	public void sendPresenceUpdatesTo(Contact contact) {
1318		PresencePacket packet = new PresencePacket();
1319		packet.setAttribute("type", "subscribed");
1320		packet.setAttribute("to", contact.getJid());
1321		packet.setAttribute("from", contact.getAccount().getJid());
1322		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1323	}
1324
1325	public void sendPresence(Account account) {
1326		PresencePacket packet = new PresencePacket();
1327		packet.setAttribute("from", account.getFullJid());
1328		String sig = account.getPgpSignature();
1329		if (sig != null) {
1330			packet.addChild("status").setContent("online");
1331			packet.addChild("x", "jabber:x:signed").setContent(sig);
1332		}
1333		account.getXmppConnection().sendPresencePacket(packet);
1334	}
1335
1336	public void updateConversation(Conversation conversation) {
1337		this.databaseBackend.updateConversation(conversation);
1338	}
1339
1340	public void removeOnTLSExceptionReceivedListener() {
1341		this.tlsException = null;
1342	}
1343
1344	public void reconnectAccount(final Account account, final boolean force) {
1345		new Thread(new Runnable() {
1346
1347			@Override
1348			public void run() {
1349				if (account.getXmppConnection() != null) {
1350					disconnect(account, force);
1351				}
1352				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1353					if (account.getXmppConnection() == null) {
1354						account.setXmppConnection(createConnection(account));
1355					}
1356					Thread thread = new Thread(account.getXmppConnection());
1357					thread.start();
1358					scheduleWakeupCall((int) (CONNECT_TIMEOUT * 1.2), false);
1359				}
1360			}
1361		}).start();
1362	}
1363
1364	public void sendConversationSubject(Conversation conversation,
1365			String subject) {
1366		MessagePacket packet = new MessagePacket();
1367		packet.setType(MessagePacket.TYPE_GROUPCHAT);
1368		packet.setTo(conversation.getContactJid().split("/")[0]);
1369		Element subjectChild = new Element("subject");
1370		subjectChild.setContent(subject);
1371		packet.addChild(subjectChild);
1372		packet.setFrom(conversation.getAccount().getJid());
1373		Account account = conversation.getAccount();
1374		if (account.getStatus() == Account.STATUS_ONLINE) {
1375			account.getXmppConnection().sendMessagePacket(packet);
1376		}
1377	}
1378
1379	public void inviteToConference(Conversation conversation,
1380			List<Contact> contacts) {
1381		for (Contact contact : contacts) {
1382			MessagePacket packet = new MessagePacket();
1383			packet.setTo(conversation.getContactJid().split("/")[0]);
1384			packet.setFrom(conversation.getAccount().getFullJid());
1385			Element x = new Element("x");
1386			x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
1387			Element invite = new Element("invite");
1388			invite.setAttribute("to", contact.getJid());
1389			x.addChild(invite);
1390			packet.addChild(x);
1391			Log.d(LOGTAG, packet.toString());
1392			conversation.getAccount().getXmppConnection()
1393					.sendMessagePacket(packet);
1394		}
1395
1396	}
1397
1398	public boolean markMessage(Account account, String recipient, String uuid,
1399			int status) {
1400		for (Conversation conversation : getConversations()) {
1401			if (conversation.getContactJid().equals(recipient)
1402					&& conversation.getAccount().equals(account)) {
1403				return markMessage(conversation, uuid, status);
1404			}
1405		}
1406		return false;
1407	}
1408
1409	public boolean markMessage(Conversation conversation, String uuid,
1410			int status) {
1411		for (Message message : conversation.getMessages()) {
1412			if (message.getUuid().equals(uuid)) {
1413				markMessage(message, status);
1414				return true;
1415			}
1416		}
1417		return false;
1418	}
1419
1420	public void markMessage(Message message, int status) {
1421		message.setStatus(status);
1422		databaseBackend.updateMessage(message);
1423		if (convChangedListener != null) {
1424			convChangedListener.onConversationListChanged();
1425		}
1426	}
1427
1428	public SharedPreferences getPreferences() {
1429		return PreferenceManager
1430				.getDefaultSharedPreferences(getApplicationContext());
1431	}
1432
1433	public boolean confirmMessages() {
1434		return getPreferences().getBoolean("confirm_messages", true);
1435	}
1436
1437	public void updateUi(Conversation conversation, boolean notify) {
1438		if (convChangedListener != null) {
1439			convChangedListener.onConversationListChanged();
1440		} else {
1441			UIHelper.updateNotification(getApplicationContext(),
1442					getConversations(), conversation, notify);
1443		}
1444	}
1445
1446	public Account findAccountByJid(String accountJid) {
1447		for (Account account : this.accounts) {
1448			if (account.getJid().equals(accountJid)) {
1449				return account;
1450			}
1451		}
1452		return null;
1453	}
1454
1455	public void markRead(Conversation conversation) {
1456		conversation.markRead(this);
1457	}
1458
1459	public void sendConfirmMessage(Account account, String to, String id) {
1460		MessagePacket receivedPacket = new MessagePacket();
1461		receivedPacket.setType(MessagePacket.TYPE_NORMAL);
1462		receivedPacket.setTo(to);
1463		receivedPacket.setFrom(account.getFullJid());
1464		Element received = receivedPacket.addChild("displayed",
1465				"urn:xmpp:chat-markers:0");
1466		received.setAttribute("id", id);
1467		account.getXmppConnection().sendMessagePacket(receivedPacket);
1468	}
1469
1470	public SecureRandom getRNG() {
1471		return this.mRandom;
1472	}
1473
1474	public PowerManager getPowerManager() {
1475		return this.pm;
1476	}
1477}