XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import java.security.SecureRandom;
   4import java.text.SimpleDateFormat;
   5import java.util.ArrayList;
   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.TimeZone;
  13import java.util.concurrent.CopyOnWriteArrayList;
  14
  15import org.openintents.openpgp.util.OpenPgpApi;
  16import org.openintents.openpgp.util.OpenPgpServiceConnection;
  17
  18import de.duenndns.ssl.MemorizingTrustManager;
  19
  20import net.java.otr4j.OtrException;
  21import net.java.otr4j.session.Session;
  22import net.java.otr4j.session.SessionStatus;
  23import eu.siacs.conversations.Config;
  24import eu.siacs.conversations.R;
  25import eu.siacs.conversations.crypto.PgpEngine;
  26import eu.siacs.conversations.entities.Account;
  27import eu.siacs.conversations.entities.Bookmark;
  28import eu.siacs.conversations.entities.Contact;
  29import eu.siacs.conversations.entities.Conversation;
  30import eu.siacs.conversations.entities.Message;
  31import eu.siacs.conversations.entities.MucOptions;
  32import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  33import eu.siacs.conversations.entities.Presences;
  34import eu.siacs.conversations.generator.IqGenerator;
  35import eu.siacs.conversations.generator.MessageGenerator;
  36import eu.siacs.conversations.generator.PresenceGenerator;
  37import eu.siacs.conversations.parser.IqParser;
  38import eu.siacs.conversations.parser.MessageParser;
  39import eu.siacs.conversations.parser.PresenceParser;
  40import eu.siacs.conversations.persistance.DatabaseBackend;
  41import eu.siacs.conversations.persistance.FileBackend;
  42import eu.siacs.conversations.ui.UiCallback;
  43import eu.siacs.conversations.utils.CryptoHelper;
  44import eu.siacs.conversations.utils.ExceptionHelper;
  45import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  46import eu.siacs.conversations.utils.PRNGFixes;
  47import eu.siacs.conversations.utils.PhoneHelper;
  48import eu.siacs.conversations.utils.UIHelper;
  49import eu.siacs.conversations.xml.Element;
  50import eu.siacs.conversations.xmpp.OnBindListener;
  51import eu.siacs.conversations.xmpp.OnContactStatusChanged;
  52import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  53import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
  54import eu.siacs.conversations.xmpp.OnStatusChanged;
  55import eu.siacs.conversations.xmpp.XmppConnection;
  56import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  57import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
  58import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
  59import eu.siacs.conversations.xmpp.pep.Avatar;
  60import eu.siacs.conversations.xmpp.stanzas.IqPacket;
  61import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
  62import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
  63import android.annotation.SuppressLint;
  64import android.app.AlarmManager;
  65import android.app.PendingIntent;
  66import android.app.Service;
  67import android.content.Context;
  68import android.content.Intent;
  69import android.content.SharedPreferences;
  70import android.database.ContentObserver;
  71import android.graphics.Bitmap;
  72import android.net.ConnectivityManager;
  73import android.net.NetworkInfo;
  74import android.net.Uri;
  75import android.os.Binder;
  76import android.os.Bundle;
  77import android.os.IBinder;
  78import android.os.PowerManager;
  79import android.os.PowerManager.WakeLock;
  80import android.os.SystemClock;
  81import android.preference.PreferenceManager;
  82import android.provider.ContactsContract;
  83import android.util.Log;
  84
  85public class XmppConnectionService extends Service {
  86
  87	public DatabaseBackend databaseBackend;
  88	private FileBackend fileBackend;
  89
  90	public long startDate;
  91
  92	private static String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
  93
  94	private MemorizingTrustManager mMemorizingTrustManager;
  95
  96	private MessageParser mMessageParser = new MessageParser(this);
  97	private PresenceParser mPresenceParser = new PresenceParser(this);
  98	private IqParser mIqParser = new IqParser(this);
  99	private MessageGenerator mMessageGenerator = new MessageGenerator();
 100	private PresenceGenerator mPresenceGenerator = new PresenceGenerator();
 101
 102	private List<Account> accounts;
 103	private CopyOnWriteArrayList<Conversation> conversations = null;
 104	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 105			this);
 106
 107	private OnConversationUpdate mOnConversationUpdate = null;
 108	private int convChangedListenerCount = 0;
 109	private OnAccountUpdate mOnAccountUpdate = null;
 110	private int accountChangedListenerCount = 0;
 111	private OnRosterUpdate mOnRosterUpdate = null;
 112	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 113
 114		@Override
 115		public void onContactStatusChanged(Contact contact, boolean online) {
 116			Conversation conversation = find(getConversations(), contact);
 117			if (conversation != null) {
 118				conversation.endOtrIfNeeded();
 119				if (online && (contact.getPresences().size() == 1)) {
 120					sendUnsendMessages(conversation);
 121				}
 122			}
 123		}
 124	};
 125
 126	private SecureRandom mRandom;
 127
 128	private ContentObserver contactObserver = new ContentObserver(null) {
 129		@Override
 130		public void onChange(boolean selfChange) {
 131			super.onChange(selfChange);
 132			Intent intent = new Intent(getApplicationContext(),
 133					XmppConnectionService.class);
 134			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 135			startService(intent);
 136		}
 137	};
 138
 139	private final IBinder mBinder = new XmppConnectionBinder();
 140	private OnStatusChanged statusListener = new OnStatusChanged() {
 141
 142		@Override
 143		public void onStatusChanged(Account account) {
 144			XmppConnection connection = account.getXmppConnection();
 145			if (mOnAccountUpdate != null) {
 146				mOnAccountUpdate.onAccountUpdate();
 147				;
 148			}
 149			if (account.getStatus() == Account.STATUS_ONLINE) {
 150				for (Conversation conversation : account.pendingConferenceLeaves) {
 151					leaveMuc(conversation);
 152				}
 153				for (Conversation conversation : account.pendingConferenceJoins) {
 154					joinMuc(conversation);
 155				}
 156				mJingleConnectionManager.cancelInTransmission();
 157				List<Conversation> conversations = getConversations();
 158				for (int i = 0; i < conversations.size(); ++i) {
 159					if (conversations.get(i).getAccount() == account) {
 160						conversations.get(i).startOtrIfNeeded();
 161						sendUnsendMessages(conversations.get(i));
 162					}
 163				}
 164				if (connection != null && connection.getFeatures().csi()) {
 165					if (checkListeners()) {
 166						Log.d(Config.LOGTAG, account.getJid()
 167								+ " sending csi//inactive");
 168						connection.sendInactive();
 169					} else {
 170						Log.d(Config.LOGTAG, account.getJid()
 171								+ " sending csi//active");
 172						connection.sendActive();
 173					}
 174				}
 175				syncDirtyContacts(account);
 176				scheduleWakeupCall(Config.PING_MAX_INTERVAL, true);
 177			} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 178				resetSendingToWaiting(account);
 179				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 180					int timeToReconnect = mRandom.nextInt(50) + 10;
 181					scheduleWakeupCall(timeToReconnect, false);
 182				}
 183			} else if (account.getStatus() == Account.STATUS_REGISTRATION_SUCCESSFULL) {
 184				databaseBackend.updateAccount(account);
 185				reconnectAccount(account, true);
 186			} else if ((account.getStatus() != Account.STATUS_CONNECTING)
 187					&& (account.getStatus() != Account.STATUS_NO_INTERNET)) {
 188				if (connection != null) {
 189					int next = connection.getTimeToNextAttempt();
 190					Log.d(Config.LOGTAG, account.getJid()
 191							+ ": error connecting account. try again in "
 192							+ next + "s for the "
 193							+ (connection.getAttempt() + 1) + " time");
 194					scheduleWakeupCall((int) (next * 1.2), false);
 195				}
 196			}
 197			UIHelper.showErrorNotification(getApplicationContext(),
 198					getAccounts());
 199		}
 200	};
 201
 202	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 203
 204		@Override
 205		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 206			mJingleConnectionManager.deliverPacket(account, packet);
 207		}
 208	};
 209
 210	private OpenPgpServiceConnection pgpServiceConnection;
 211	private PgpEngine mPgpEngine = null;
 212	private Intent pingIntent;
 213	private PendingIntent pendingPingIntent = null;
 214	private WakeLock wakeLock;
 215	private PowerManager pm;
 216	private OnBindListener mOnBindListener = new OnBindListener() {
 217
 218		@Override
 219		public void onBind(final Account account) {
 220			account.getRoster().clearPresences();
 221			account.clearPresences(); // self presences
 222			account.pendingConferenceJoins.clear();
 223			account.pendingConferenceLeaves.clear();
 224			fetchRosterFromServer(account);
 225			fetchBookmarks(account);
 226			sendPresencePacket(account,
 227					mPresenceGenerator.sendPresence(account));
 228			connectMultiModeConversations(account);
 229			updateConversationUi();
 230		}
 231	};
 232
 233	private OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 234
 235		@Override
 236		public void onMessageAcknowledged(Account account, String uuid) {
 237			for (Conversation conversation : getConversations()) {
 238				if (conversation.getAccount() == account) {
 239					for (Message message : conversation.getMessages()) {
 240						if ((message.getStatus() == Message.STATUS_UNSEND || message
 241								.getStatus() == Message.STATUS_WAITING)
 242								&& message.getUuid().equals(uuid)) {
 243							markMessage(message, Message.STATUS_SEND);
 244							return;
 245						}
 246					}
 247				}
 248			}
 249		}
 250	};
 251
 252	public PgpEngine getPgpEngine() {
 253		if (pgpServiceConnection.isBound()) {
 254			if (this.mPgpEngine == null) {
 255				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 256						getApplicationContext(),
 257						pgpServiceConnection.getService()), this);
 258			}
 259			return mPgpEngine;
 260		} else {
 261			return null;
 262		}
 263
 264	}
 265
 266	public FileBackend getFileBackend() {
 267		return this.fileBackend;
 268	}
 269
 270	public Message attachImageToConversation(final Conversation conversation,
 271			final Uri uri, final UiCallback<Message> callback) {
 272		final Message message;
 273		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 274			message = new Message(conversation, "",
 275					Message.ENCRYPTION_DECRYPTED);
 276		} else {
 277			message = new Message(conversation, "",
 278					conversation.getNextEncryption());
 279		}
 280		message.setPresence(conversation.getNextPresence());
 281		message.setType(Message.TYPE_IMAGE);
 282		message.setStatus(Message.STATUS_OFFERED);
 283		new Thread(new Runnable() {
 284
 285			@Override
 286			public void run() {
 287				try {
 288					getFileBackend().copyImageToPrivateStorage(message, uri);
 289					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 290						getPgpEngine().encrypt(message, callback);
 291					} else {
 292						callback.success(message);
 293					}
 294				} catch (FileBackend.ImageCopyException e) {
 295					callback.error(e.getResId(), message);
 296				}
 297			}
 298		}).start();
 299		return message;
 300	}
 301
 302	public Conversation find(Bookmark bookmark) {
 303		return find(bookmark.getAccount(), bookmark.getJid());
 304	}
 305
 306	public Conversation find(Account account, String jid) {
 307		return find(getConversations(), account, jid);
 308	}
 309
 310	public class XmppConnectionBinder extends Binder {
 311		public XmppConnectionService getService() {
 312			return XmppConnectionService.this;
 313		}
 314	}
 315
 316	@Override
 317	public int onStartCommand(Intent intent, int flags, int startId) {
 318		if ((intent != null)
 319				&& (ACTION_MERGE_PHONE_CONTACTS.equals(intent.getAction()))) {
 320			mergePhoneContactsWithRoster();
 321			return START_STICKY;
 322		} else if ((intent != null)
 323				&& (Intent.ACTION_SHUTDOWN.equals(intent.getAction()))) {
 324			logoutAndSave();
 325			return START_NOT_STICKY;
 326		}
 327		this.wakeLock.acquire();
 328		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 329				.getSystemService(Context.CONNECTIVITY_SERVICE);
 330		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 331		boolean isConnected = activeNetwork != null
 332				&& activeNetwork.isConnected();
 333
 334		for (Account account : accounts) {
 335			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 336				if (!isConnected) {
 337					account.setStatus(Account.STATUS_NO_INTERNET);
 338					if (statusListener != null) {
 339						statusListener.onStatusChanged(account);
 340					}
 341				} else {
 342					if (account.getStatus() == Account.STATUS_NO_INTERNET) {
 343						account.setStatus(Account.STATUS_OFFLINE);
 344						if (statusListener != null) {
 345							statusListener.onStatusChanged(account);
 346						}
 347					}
 348					if (account.getStatus() == Account.STATUS_ONLINE) {
 349						long lastReceived = account.getXmppConnection()
 350								.getLastPacketReceived();
 351						long lastSent = account.getXmppConnection()
 352								.getLastPingSent();
 353						if (lastSent - lastReceived >= Config.PING_TIMEOUT * 1000) {
 354							Log.d(Config.LOGTAG, account.getJid()
 355									+ ": ping timeout");
 356							this.reconnectAccount(account, true);
 357						} else if (SystemClock.elapsedRealtime() - lastReceived >= Config.PING_MIN_INTERVAL * 1000) {
 358							account.getXmppConnection().sendPing();
 359							this.scheduleWakeupCall(2, false);
 360						}
 361					} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 362						if (account.getXmppConnection() == null) {
 363							account.setXmppConnection(this
 364									.createConnection(account));
 365						}
 366						new Thread(account.getXmppConnection()).start();
 367					} else if ((account.getStatus() == Account.STATUS_CONNECTING)
 368							&& ((SystemClock.elapsedRealtime() - account
 369									.getXmppConnection().getLastConnect()) / 1000 >= Config.CONNECT_TIMEOUT)) {
 370						Log.d(Config.LOGTAG, account.getJid()
 371								+ ": time out during connect reconnecting");
 372						reconnectAccount(account, true);
 373					} else {
 374						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 375							reconnectAccount(account, true);
 376						}
 377					}
 378					// in any case. reschedule wakup call
 379					this.scheduleWakeupCall(Config.PING_MAX_INTERVAL, true);
 380				}
 381				if (mOnAccountUpdate != null) {
 382					mOnAccountUpdate.onAccountUpdate();
 383				}
 384			}
 385		}
 386		if (wakeLock.isHeld()) {
 387			try {
 388				wakeLock.release();
 389			} catch (RuntimeException re) {
 390			}
 391		}
 392		return START_STICKY;
 393	}
 394
 395	@SuppressLint("TrulyRandom")
 396	@Override
 397	public void onCreate() {
 398		ExceptionHelper.init(getApplicationContext());
 399		PRNGFixes.apply();
 400		this.mRandom = new SecureRandom();
 401		this.mMemorizingTrustManager = new MemorizingTrustManager(
 402				getApplicationContext());
 403		this.databaseBackend = DatabaseBackend
 404				.getInstance(getApplicationContext());
 405		this.fileBackend = new FileBackend(getApplicationContext());
 406		this.accounts = databaseBackend.getAccounts();
 407
 408		for (Account account : this.accounts) {
 409			this.databaseBackend.readRoster(account.getRoster());
 410		}
 411		this.mergePhoneContactsWithRoster();
 412		this.getConversations();
 413
 414		getContentResolver().registerContentObserver(
 415				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 416		this.pgpServiceConnection = new OpenPgpServiceConnection(
 417				getApplicationContext(), "org.sufficientlysecure.keychain");
 418		this.pgpServiceConnection.bindToService();
 419
 420		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 421		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
 422				"XmppConnectionService");
 423	}
 424
 425	@Override
 426	public void onDestroy() {
 427		super.onDestroy();
 428		this.logoutAndSave();
 429	}
 430
 431	@Override
 432	public void onTaskRemoved(Intent rootIntent) {
 433		super.onTaskRemoved(rootIntent);
 434		this.logoutAndSave();
 435	}
 436
 437	private void logoutAndSave() {
 438		for (Account account : accounts) {
 439			databaseBackend.writeRoster(account.getRoster());
 440			if (account.getXmppConnection() != null) {
 441				disconnect(account, false);
 442			}
 443		}
 444		Context context = getApplicationContext();
 445		AlarmManager alarmManager = (AlarmManager) context
 446				.getSystemService(Context.ALARM_SERVICE);
 447		Intent intent = new Intent(context, EventReceiver.class);
 448		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 449		Log.d(Config.LOGTAG, "good bye");
 450		stopSelf();
 451	}
 452
 453	protected void scheduleWakeupCall(int seconds, boolean ping) {
 454		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 455		Context context = getApplicationContext();
 456		AlarmManager alarmManager = (AlarmManager) context
 457				.getSystemService(Context.ALARM_SERVICE);
 458
 459		if (ping) {
 460			if (this.pingIntent == null) {
 461				this.pingIntent = new Intent(context, EventReceiver.class);
 462				this.pingIntent.setAction("ping");
 463				this.pingIntent.putExtra("time", timeToWake);
 464				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 465						this.pingIntent, 0);
 466				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 467						timeToWake, pendingPingIntent);
 468			} else {
 469				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
 470				if (scheduledTime < SystemClock.elapsedRealtime()
 471						|| (scheduledTime > timeToWake)) {
 472					this.pingIntent.putExtra("time", timeToWake);
 473					alarmManager.cancel(this.pendingPingIntent);
 474					this.pendingPingIntent = PendingIntent.getBroadcast(
 475							context, 0, this.pingIntent, 0);
 476					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 477							timeToWake, pendingPingIntent);
 478				}
 479			}
 480		} else {
 481			Intent intent = new Intent(context, EventReceiver.class);
 482			intent.setAction("ping_check");
 483			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 484					intent, 0);
 485			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 486					alarmIntent);
 487		}
 488
 489	}
 490
 491	public XmppConnection createConnection(Account account) {
 492		SharedPreferences sharedPref = getPreferences();
 493		account.setResource(sharedPref.getString("resource", "mobile")
 494				.toLowerCase(Locale.getDefault()));
 495		XmppConnection connection = new XmppConnection(account, this);
 496		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 497		connection.setOnStatusChangedListener(this.statusListener);
 498		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 499		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 500		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 501		connection.setOnBindListener(this.mOnBindListener);
 502		connection
 503				.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 504		return connection;
 505	}
 506
 507	synchronized public void sendMessage(Message message) {
 508		Account account = message.getConversation().getAccount();
 509		Conversation conv = message.getConversation();
 510		MessagePacket packet = null;
 511		boolean saveInDb = true;
 512		boolean send = false;
 513		if (account.getStatus() == Account.STATUS_ONLINE) {
 514			if (message.getType() == Message.TYPE_IMAGE) {
 515				if (message.getPresence() != null) {
 516					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 517						if (!conv.hasValidOtrSession()
 518								&& (message.getPresence() != null)) {
 519							conv.startOtrSession(this,
 520									message.getPresence(), true);
 521							message.setStatus(Message.STATUS_WAITING);
 522						} else if (conv.hasValidOtrSession()
 523								&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 524							mJingleConnectionManager
 525									.createNewConnection(message);
 526						} else if (message.getPresence() == null) {
 527							message.setStatus(Message.STATUS_WAITING);
 528						}
 529					} else {
 530						mJingleConnectionManager.createNewConnection(message);
 531					}
 532				} else {
 533					message.setStatus(Message.STATUS_WAITING);
 534				}
 535			} else {
 536				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 537					if (!conv.hasValidOtrSession()
 538							&& (message.getPresence() != null)) {
 539						conv.startOtrSession(this,
 540								message.getPresence(), true);
 541						message.setStatus(Message.STATUS_WAITING);
 542					} else if (conv.hasValidOtrSession()
 543							&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 544						message.setPresence(conv.getOtrSession().getSessionID()
 545								.getUserID());
 546						packet = mMessageGenerator.generateOtrChat(message);
 547						send = true;
 548
 549					} else if (message.getPresence() == null) {
 550						message.setStatus(Message.STATUS_WAITING);
 551					}
 552				} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 553					message.getConversation().endOtrIfNeeded();
 554					failWaitingOtrMessages(message.getConversation());
 555					packet = mMessageGenerator.generatePgpChat(message);
 556					send = true;
 557				} else {
 558					message.getConversation().endOtrIfNeeded();
 559					failWaitingOtrMessages(message.getConversation());
 560					packet = mMessageGenerator.generateChat(message);
 561					send = true;
 562				}
 563			}
 564		} else {
 565			message.setStatus(Message.STATUS_WAITING);
 566			if (message.getType() == Message.TYPE_TEXT) {
 567				if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 568					String pgpBody = message.getEncryptedBody();
 569					String decryptedBody = message.getBody();
 570					message.setBody(pgpBody);
 571					databaseBackend.createMessage(message);
 572					saveInDb = false;
 573					message.setBody(decryptedBody);
 574				} else if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 575					if (conv.hasValidOtrSession()) {
 576						message.setPresence(conv.getOtrSession().getSessionID()
 577								.getUserID());
 578					} else if (!conv.hasValidOtrSession()
 579							&& message.getPresence() != null) {
 580						conv.startOtrSession(this,
 581								message.getPresence(), false);
 582					}
 583				}
 584			}
 585
 586		}
 587		if (saveInDb) {
 588			databaseBackend.createMessage(message);
 589		}
 590		conv.getMessages().add(message);
 591		if ((send) && (packet != null)) {
 592			if (!account.getXmppConnection().getFeatures().sm()
 593					&& conv.getMode() != Conversation.MODE_MULTI) {
 594				message.setStatus(Message.STATUS_SEND);
 595			}
 596			sendMessagePacket(account, packet);
 597		}
 598		updateConversationUi();
 599	}
 600
 601	private void sendUnsendMessages(Conversation conversation) {
 602		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 603			int status = conversation.getMessages().get(i).getStatus();
 604			if (status == Message.STATUS_WAITING) {
 605				resendMessage(conversation.getMessages().get(i));
 606			}
 607		}
 608	}
 609
 610	private void resendMessage(Message message) {
 611		Account account = message.getConversation().getAccount();
 612		MessagePacket packet = null;
 613		if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 614			Presences presences = message.getConversation().getContact()
 615					.getPresences();
 616			if (!message.getConversation().hasValidOtrSession()) {
 617				if ((message.getPresence() != null)
 618						&& (presences.has(message.getPresence()))) {
 619					message.getConversation().startOtrSession(
 620							this, message.getPresence(),
 621							true);
 622				} else {
 623					if (presences.size() == 1) {
 624						String presence = presences.asStringArray()[0];
 625						message.getConversation().startOtrSession(
 626								this, presence, true);
 627					}
 628				}
 629			} else {
 630				if (message.getConversation().getOtrSession()
 631						.getSessionStatus() == SessionStatus.ENCRYPTED) {
 632					if (message.getType() == Message.TYPE_TEXT) {
 633						packet = mMessageGenerator.generateOtrChat(message,
 634								true);
 635					} else if (message.getType() == Message.TYPE_IMAGE) {
 636						mJingleConnectionManager.createNewConnection(message);
 637					}
 638				}
 639			}
 640		} else if (message.getType() == Message.TYPE_TEXT) {
 641			if (message.getEncryption() == Message.ENCRYPTION_NONE) {
 642				packet = mMessageGenerator.generateChat(message, true);
 643			} else if ((message.getEncryption() == Message.ENCRYPTION_DECRYPTED)
 644					|| (message.getEncryption() == Message.ENCRYPTION_PGP)) {
 645				packet = mMessageGenerator.generatePgpChat(message, true);
 646			}
 647		} else if (message.getType() == Message.TYPE_IMAGE) {
 648			Presences presences = message.getConversation().getContact()
 649					.getPresences();
 650			if ((message.getPresence() != null)
 651					&& (presences.has(message.getPresence()))) {
 652				markMessage(message, Message.STATUS_OFFERED);
 653				mJingleConnectionManager.createNewConnection(message);
 654			} else {
 655				if (presences.size() == 1) {
 656					String presence = presences.asStringArray()[0];
 657					message.setPresence(presence);
 658					markMessage(message, Message.STATUS_OFFERED);
 659					mJingleConnectionManager.createNewConnection(message);
 660				}
 661			}
 662		}
 663		if (packet != null) {
 664			sendMessagePacket(account, packet);
 665			markMessage(message, Message.STATUS_SEND);
 666		}
 667	}
 668
 669	public void fetchRosterFromServer(Account account) {
 670		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 671		if (!"".equals(account.getRosterVersion())) {
 672			Log.d(Config.LOGTAG, account.getJid()
 673					+ ": fetching roster version " + account.getRosterVersion());
 674		} else {
 675			Log.d(Config.LOGTAG, account.getJid() + ": fetching roster");
 676		}
 677		iqPacket.query("jabber:iq:roster").setAttribute("ver",
 678				account.getRosterVersion());
 679		account.getXmppConnection().sendIqPacket(iqPacket,
 680				new OnIqPacketReceived() {
 681
 682					@Override
 683					public void onIqPacketReceived(final Account account,
 684							IqPacket packet) {
 685						Element query = packet.findChild("query");
 686						if (query != null) {
 687							account.getRoster().markAllAsNotInRoster();
 688							mIqParser.rosterItems(account, query);
 689						}
 690					}
 691				});
 692	}
 693
 694	public void fetchBookmarks(Account account) {
 695		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 696		Element query = iqPacket.query("jabber:iq:private");
 697		query.addChild("storage", "storage:bookmarks");
 698		OnIqPacketReceived callback = new OnIqPacketReceived() {
 699
 700			@Override
 701			public void onIqPacketReceived(Account account, IqPacket packet) {
 702				Element query = packet.query();
 703				List<Bookmark> bookmarks = new CopyOnWriteArrayList<Bookmark>();
 704				Element storage = query.findChild("storage",
 705						"storage:bookmarks");
 706				if (storage != null) {
 707					for (Element item : storage.getChildren()) {
 708						if (item.getName().equals("conference")) {
 709							Bookmark bookmark = Bookmark.parse(item, account);
 710							bookmarks.add(bookmark);
 711							Conversation conversation = find(bookmark);
 712							if (conversation != null) {
 713								conversation.setBookmark(bookmark);
 714							} else {
 715								if (bookmark.autojoin()) {
 716									conversation = findOrCreateConversation(
 717											account, bookmark.getJid(), true);
 718									conversation.setBookmark(bookmark);
 719									joinMuc(conversation);
 720								}
 721							}
 722						}
 723					}
 724				}
 725				account.setBookmarks(bookmarks);
 726			}
 727		};
 728		sendIqPacket(account, iqPacket, callback);
 729
 730	}
 731
 732	public void pushBookmarks(Account account) {
 733		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_SET);
 734		Element query = iqPacket.query("jabber:iq:private");
 735		Element storage = query.addChild("storage", "storage:bookmarks");
 736		for (Bookmark bookmark : account.getBookmarks()) {
 737			storage.addChild(bookmark.toElement());
 738		}
 739		sendIqPacket(account, iqPacket, null);
 740	}
 741
 742	private void mergePhoneContactsWithRoster() {
 743		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 744				new OnPhoneContactsLoadedListener() {
 745					@Override
 746					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
 747						for (Account account : accounts) {
 748							account.getRoster().clearSystemAccounts();
 749						}
 750						for (Bundle phoneContact : phoneContacts) {
 751							for (Account account : accounts) {
 752								String jid = phoneContact.getString("jid");
 753								Contact contact = account.getRoster()
 754										.getContact(jid);
 755								String systemAccount = phoneContact
 756										.getInt("phoneid")
 757										+ "#"
 758										+ phoneContact.getString("lookup");
 759								contact.setSystemAccount(systemAccount);
 760								contact.setPhotoUri(phoneContact
 761										.getString("photouri"));
 762								contact.setSystemName(phoneContact
 763										.getString("displayname"));
 764							}
 765						}
 766					}
 767				});
 768	}
 769
 770	public List<Conversation> getConversations() {
 771		if (this.conversations == null) {
 772			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
 773			for (Account account : this.accounts) {
 774				accountLookupTable.put(account.getUuid(), account);
 775			}
 776			this.conversations = databaseBackend
 777					.getConversations(Conversation.STATUS_AVAILABLE);
 778			for (Conversation conv : this.conversations) {
 779				Account account = accountLookupTable.get(conv.getAccountUuid());
 780				conv.setAccount(account);
 781				conv.setMessages(databaseBackend.getMessages(conv, 50));
 782			}
 783		}
 784
 785		return this.conversations;
 786	}
 787
 788	public void populateWithOrderedConversations(List<Conversation> list) {
 789		populateWithOrderedConversations(list, true);
 790	}
 791
 792	public void populateWithOrderedConversations(List<Conversation> list,
 793			boolean includeConferences) {
 794		list.clear();
 795		if (includeConferences) {
 796			list.addAll(getConversations());
 797		} else {
 798			for (Conversation conversation : getConversations()) {
 799				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 800					list.add(conversation);
 801				}
 802			}
 803		}
 804		Collections.sort(list, new Comparator<Conversation>() {
 805			@Override
 806			public int compare(Conversation lhs, Conversation rhs) {
 807				Message left = lhs.getLatestMessage();
 808				Message right = rhs.getLatestMessage();
 809				if (left.getTimeSent() > right.getTimeSent()) {
 810					return -1;
 811				} else if (left.getTimeSent() < right.getTimeSent()) {
 812					return 1;
 813				} else {
 814					return 0;
 815				}
 816			}
 817		});
 818	}
 819
 820	public List<Message> getMoreMessages(Conversation conversation,
 821			long timestamp) {
 822		List<Message> messages = databaseBackend.getMessages(conversation, 50,
 823				timestamp);
 824		for (Message message : messages) {
 825			message.setConversation(conversation);
 826		}
 827		return messages;
 828	}
 829
 830	public List<Account> getAccounts() {
 831		return this.accounts;
 832	}
 833
 834	public Conversation find(List<Conversation> haystack, Contact contact) {
 835		for (Conversation conversation : haystack) {
 836			if (conversation.getContact() == contact) {
 837				return conversation;
 838			}
 839		}
 840		return null;
 841	}
 842
 843	public Conversation find(List<Conversation> haystack, Account account,
 844			String jid) {
 845		for (Conversation conversation : haystack) {
 846			if ((conversation.getAccount().equals(account))
 847					&& (conversation.getContactJid().split("/")[0].equals(jid))) {
 848				return conversation;
 849			}
 850		}
 851		return null;
 852	}
 853
 854	public Conversation findOrCreateConversation(Account account, String jid,
 855			boolean muc) {
 856		Conversation conversation = find(account, jid);
 857		if (conversation != null) {
 858			return conversation;
 859		}
 860		conversation = databaseBackend.findConversation(account, jid);
 861		if (conversation != null) {
 862			conversation.setStatus(Conversation.STATUS_AVAILABLE);
 863			conversation.setAccount(account);
 864			if (muc) {
 865				conversation.setMode(Conversation.MODE_MULTI);
 866			} else {
 867				conversation.setMode(Conversation.MODE_SINGLE);
 868			}
 869			conversation.setMessages(databaseBackend.getMessages(conversation,
 870					50));
 871			this.databaseBackend.updateConversation(conversation);
 872		} else {
 873			String conversationName;
 874			Contact contact = account.getRoster().getContact(jid);
 875			if (contact != null) {
 876				conversationName = contact.getDisplayName();
 877			} else {
 878				conversationName = jid.split("@")[0];
 879			}
 880			if (muc) {
 881				conversation = new Conversation(conversationName, account, jid,
 882						Conversation.MODE_MULTI);
 883			} else {
 884				conversation = new Conversation(conversationName, account, jid,
 885						Conversation.MODE_SINGLE);
 886			}
 887			this.databaseBackend.createConversation(conversation);
 888		}
 889		this.conversations.add(conversation);
 890		updateConversationUi();
 891		return conversation;
 892	}
 893
 894	public void archiveConversation(Conversation conversation) {
 895		if (conversation.getMode() == Conversation.MODE_MULTI) {
 896			Bookmark bookmark = conversation.getBookmark();
 897			if (bookmark != null && bookmark.autojoin()) {
 898				bookmark.setAutojoin(false);
 899				pushBookmarks(bookmark.getAccount());
 900			}
 901			leaveMuc(conversation);
 902		} else {
 903			conversation.endOtrIfNeeded();
 904		}
 905		this.databaseBackend.updateConversation(conversation);
 906		this.conversations.remove(conversation);
 907		updateConversationUi();
 908	}
 909
 910	public void clearConversationHistory(Conversation conversation) {
 911		this.databaseBackend.deleteMessagesInConversation(conversation);
 912		this.fileBackend.removeFiles(conversation);
 913		conversation.getMessages().clear();
 914		updateConversationUi();
 915	}
 916
 917	public int getConversationCount() {
 918		return this.databaseBackend.getConversationCount();
 919	}
 920
 921	public void createAccount(Account account) {
 922		databaseBackend.createAccount(account);
 923		this.accounts.add(account);
 924		this.reconnectAccount(account, false);
 925		updateAccountUi();
 926	}
 927
 928	public void updateAccount(Account account) {
 929		this.statusListener.onStatusChanged(account);
 930		databaseBackend.updateAccount(account);
 931		reconnectAccount(account, false);
 932		updateAccountUi();
 933		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
 934	}
 935
 936	public void deleteAccount(Account account) {
 937		for (Conversation conversation : conversations) {
 938			if (conversation.getAccount() == account) {
 939				if (conversation.getMode() == Conversation.MODE_MULTI) {
 940					leaveMuc(conversation);
 941				} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
 942					conversation.endOtrIfNeeded();
 943				}
 944				conversations.remove(conversation);
 945			}
 946		}
 947		if (account.getXmppConnection() != null) {
 948			this.disconnect(account, true);
 949		}
 950		databaseBackend.deleteAccount(account);
 951		this.accounts.remove(account);
 952		updateAccountUi();
 953		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
 954	}
 955
 956	public void setOnConversationListChangedListener(
 957			OnConversationUpdate listener) {
 958		if (checkListeners()) {
 959			switchToForeground();
 960		}
 961		this.mOnConversationUpdate = listener;
 962		this.convChangedListenerCount++;
 963	}
 964
 965	public void removeOnConversationListChangedListener() {
 966		this.convChangedListenerCount--;
 967		if (this.convChangedListenerCount == 0) {
 968			this.mOnConversationUpdate = null;
 969			if (checkListeners()) {
 970				switchToBackground();
 971			}
 972		}
 973	}
 974
 975	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
 976		if (checkListeners()) {
 977			switchToForeground();
 978		}
 979		this.mOnAccountUpdate = listener;
 980		this.accountChangedListenerCount++;
 981	}
 982
 983	public void removeOnAccountListChangedListener() {
 984		this.accountChangedListenerCount--;
 985		if (this.accountChangedListenerCount == 0) {
 986			this.mOnAccountUpdate = null;
 987			if (checkListeners()) {
 988				switchToBackground();
 989			}
 990		}
 991	}
 992
 993	public void setOnRosterUpdateListener(OnRosterUpdate listener) {
 994		if (checkListeners()) {
 995			switchToForeground();
 996		}
 997		this.mOnRosterUpdate = listener;
 998	}
 999
1000	public void removeOnRosterUpdateListener() {
1001		this.mOnRosterUpdate = null;
1002		if (checkListeners()) {
1003			switchToBackground();
1004		}
1005	}
1006
1007	private boolean checkListeners() {
1008		return (this.mOnAccountUpdate == null
1009				&& this.mOnConversationUpdate == null && this.mOnRosterUpdate == null);
1010	}
1011
1012	private void switchToForeground() {
1013		for (Account account : getAccounts()) {
1014			if (account.getStatus() == Account.STATUS_ONLINE) {
1015				XmppConnection connection = account.getXmppConnection();
1016				if (connection != null && connection.getFeatures().csi()) {
1017					connection.sendActive();
1018					Log.d(Config.LOGTAG, account.getJid()
1019							+ " sending csi//active");
1020				}
1021			}
1022		}
1023	}
1024
1025	private void switchToBackground() {
1026		for (Account account : getAccounts()) {
1027			if (account.getStatus() == Account.STATUS_ONLINE) {
1028				XmppConnection connection = account.getXmppConnection();
1029				if (connection != null && connection.getFeatures().csi()) {
1030					connection.sendInactive();
1031					Log.d(Config.LOGTAG, account.getJid()
1032							+ " sending csi//inactive");
1033				}
1034			}
1035		}
1036	}
1037
1038	public void connectMultiModeConversations(Account account) {
1039		List<Conversation> conversations = getConversations();
1040		for (int i = 0; i < conversations.size(); i++) {
1041			Conversation conversation = conversations.get(i);
1042			if ((conversation.getMode() == Conversation.MODE_MULTI)
1043					&& (conversation.getAccount() == account)) {
1044				joinMuc(conversation);
1045			}
1046		}
1047	}
1048
1049	public void joinMuc(Conversation conversation) {
1050		Account account = conversation.getAccount();
1051		account.pendingConferenceJoins.remove(conversation);
1052		account.pendingConferenceLeaves.remove(conversation);
1053		if (account.getStatus() == Account.STATUS_ONLINE) {
1054			Log.d(Config.LOGTAG,
1055					"joining conversation " + conversation.getContactJid());
1056			String nick = conversation.getMucOptions().getProposedNick();
1057			conversation.getMucOptions().setJoinNick(nick);
1058			PresencePacket packet = new PresencePacket();
1059			String joinJid = conversation.getMucOptions().getJoinJid();
1060			packet.setAttribute("to", conversation.getMucOptions().getJoinJid());
1061			Element x = new Element("x");
1062			x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1063			if (conversation.getMucOptions().getPassword() != null) {
1064				Element password = x.addChild("password");
1065				password.setContent(conversation.getMucOptions().getPassword());
1066			}
1067			String sig = account.getPgpSignature();
1068			if (sig != null) {
1069				packet.addChild("status").setContent("online");
1070				packet.addChild("x", "jabber:x:signed").setContent(sig);
1071			}
1072			if (conversation.getMessages().size() != 0) {
1073				final SimpleDateFormat mDateFormat = new SimpleDateFormat(
1074						"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
1075				mDateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
1076				Date date = new Date(conversation.getLatestMessage()
1077						.getTimeSent() + 1000);
1078				x.addChild("history").setAttribute("since",
1079						mDateFormat.format(date));
1080			}
1081			packet.addChild(x);
1082			sendPresencePacket(account, packet);
1083			if (!joinJid.equals(conversation.getContactJid())) {
1084				conversation.setContactJid(joinJid);
1085				databaseBackend.updateConversation(conversation);
1086			}
1087		} else {
1088			account.pendingConferenceJoins.add(conversation);
1089		}
1090	}
1091
1092	private OnRenameListener renameListener = null;
1093	private IqGenerator mIqGenerator = new IqGenerator();
1094
1095	public void setOnRenameListener(OnRenameListener listener) {
1096		this.renameListener = listener;
1097	}
1098
1099	public void providePasswordForMuc(Conversation conversation, String password) {
1100		if (conversation.getMode() == Conversation.MODE_MULTI) {
1101			conversation.getMucOptions().setPassword(password);
1102			joinMuc(conversation);
1103		}
1104	}
1105
1106	public void renameInMuc(final Conversation conversation, final String nick) {
1107		final MucOptions options = conversation.getMucOptions();
1108		options.setJoinNick(nick);
1109		if (options.online()) {
1110			Account account = conversation.getAccount();
1111			options.setOnRenameListener(new OnRenameListener() {
1112
1113				@Override
1114				public void onRename(boolean success) {
1115					if (renameListener != null) {
1116						renameListener.onRename(success);
1117					}
1118					if (success) {
1119						conversation.setContactJid(conversation.getMucOptions()
1120								.getJoinJid());
1121						databaseBackend.updateConversation(conversation);
1122						Bookmark bookmark = conversation.getBookmark();
1123						if (bookmark != null) {
1124							bookmark.setNick(nick);
1125							pushBookmarks(bookmark.getAccount());
1126						}
1127					}
1128				}
1129			});
1130			options.flagAboutToRename();
1131			PresencePacket packet = new PresencePacket();
1132			packet.setAttribute("to", options.getJoinJid());
1133			packet.setAttribute("from", conversation.getAccount().getFullJid());
1134
1135			String sig = account.getPgpSignature();
1136			if (sig != null) {
1137				packet.addChild("status").setContent("online");
1138				packet.addChild("x", "jabber:x:signed").setContent(sig);
1139			}
1140			sendPresencePacket(account, packet);
1141		} else {
1142			conversation.setContactJid(options.getJoinJid());
1143			databaseBackend.updateConversation(conversation);
1144			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
1145				Bookmark bookmark = conversation.getBookmark();
1146				if (bookmark != null) {
1147					bookmark.setNick(nick);
1148					pushBookmarks(bookmark.getAccount());
1149				}
1150				joinMuc(conversation);
1151			}
1152		}
1153	}
1154
1155	public void leaveMuc(Conversation conversation) {
1156		Account account = conversation.getAccount();
1157		account.pendingConferenceJoins.remove(conversation);
1158		account.pendingConferenceLeaves.remove(conversation);
1159		if (account.getStatus() == Account.STATUS_ONLINE) {
1160			PresencePacket packet = new PresencePacket();
1161			packet.setAttribute("to", conversation.getMucOptions().getJoinJid());
1162			packet.setAttribute("from", conversation.getAccount().getFullJid());
1163			packet.setAttribute("type", "unavailable");
1164			sendPresencePacket(conversation.getAccount(), packet);
1165			conversation.getMucOptions().setOffline();
1166			conversation.deregisterWithBookmark();
1167			Log.d(Config.LOGTAG, conversation.getAccount().getJid()
1168					+ " leaving muc " + conversation.getContactJid());
1169		} else {
1170			account.pendingConferenceLeaves.add(conversation);
1171		}
1172	}
1173
1174	public void disconnect(Account account, boolean force) {
1175		if ((account.getStatus() == Account.STATUS_ONLINE)
1176				|| (account.getStatus() == Account.STATUS_DISABLED)) {
1177			if (!force) {
1178				List<Conversation> conversations = getConversations();
1179				for (int i = 0; i < conversations.size(); i++) {
1180					Conversation conversation = conversations.get(i);
1181					if (conversation.getAccount() == account) {
1182						if (conversation.getMode() == Conversation.MODE_MULTI) {
1183							leaveMuc(conversation);
1184						} else {
1185							conversation.endOtrIfNeeded();
1186						}
1187					}
1188				}
1189			}
1190			account.getXmppConnection().disconnect(force);
1191		}
1192	}
1193
1194	@Override
1195	public IBinder onBind(Intent intent) {
1196		return mBinder;
1197	}
1198
1199	public void updateMessage(Message message) {
1200		databaseBackend.updateMessage(message);
1201	}
1202
1203	protected void syncDirtyContacts(Account account) {
1204		for (Contact contact : account.getRoster().getContacts()) {
1205			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1206				pushContactToServer(contact);
1207			}
1208			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1209				deleteContactOnServer(contact);
1210			}
1211		}
1212	}
1213
1214	public void createContact(Contact contact) {
1215		SharedPreferences sharedPref = getPreferences();
1216		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1217		if (autoGrant) {
1218			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1219			contact.setOption(Contact.Options.ASKING);
1220		}
1221		pushContactToServer(contact);
1222	}
1223
1224	public void onOtrSessionEstablished(Conversation conversation) {
1225		Account account = conversation.getAccount();
1226		List<Message> messages = conversation.getMessages();
1227		Session otrSession = conversation.getOtrSession();
1228		Log.d(Config.LOGTAG,
1229				account.getJid() + " otr session established with "
1230						+ conversation.getContactJid() + "/"
1231						+ otrSession.getSessionID().getUserID());
1232		for (int i = 0; i < messages.size(); ++i) {
1233			Message msg = messages.get(i);
1234			if ((msg.getStatus() == Message.STATUS_UNSEND || msg.getStatus() == Message.STATUS_WAITING)
1235					&& (msg.getEncryption() == Message.ENCRYPTION_OTR)) {
1236				msg.setPresence(otrSession.getSessionID().getUserID());
1237				if (msg.getType() == Message.TYPE_TEXT) {
1238					MessagePacket outPacket = mMessageGenerator
1239							.generateOtrChat(msg, true);
1240					if (outPacket != null) {
1241						msg.setStatus(Message.STATUS_SEND);
1242						databaseBackend.updateMessage(msg);
1243						sendMessagePacket(account, outPacket);
1244					}
1245				} else if (msg.getType() == Message.TYPE_IMAGE) {
1246					mJingleConnectionManager.createNewConnection(msg);
1247				}
1248			}
1249		}
1250		notifyUi(conversation, false);
1251	}
1252
1253	public boolean renewSymmetricKey(Conversation conversation) {
1254		Account account = conversation.getAccount();
1255		byte[] symmetricKey = new byte[32];
1256		this.mRandom.nextBytes(symmetricKey);
1257		Session otrSession = conversation.getOtrSession();
1258		if (otrSession != null) {
1259			MessagePacket packet = new MessagePacket();
1260			packet.setType(MessagePacket.TYPE_CHAT);
1261			packet.setFrom(account.getFullJid());
1262			packet.addChild("private", "urn:xmpp:carbons:2");
1263			packet.addChild("no-copy", "urn:xmpp:hints");
1264			packet.setTo(otrSession.getSessionID().getAccountID() + "/"
1265					+ otrSession.getSessionID().getUserID());
1266			try {
1267				packet.setBody(otrSession
1268						.transformSending(CryptoHelper.FILETRANSFER
1269								+ CryptoHelper.bytesToHex(symmetricKey)));
1270				sendMessagePacket(account, packet);
1271				conversation.setSymmetricKey(symmetricKey);
1272				return true;
1273			} catch (OtrException e) {
1274				return false;
1275			}
1276		}
1277		return false;
1278	}
1279
1280	public void pushContactToServer(Contact contact) {
1281		contact.resetOption(Contact.Options.DIRTY_DELETE);
1282		contact.setOption(Contact.Options.DIRTY_PUSH);
1283		Account account = contact.getAccount();
1284		if (account.getStatus() == Account.STATUS_ONLINE) {
1285			boolean ask = contact.getOption(Contact.Options.ASKING);
1286			boolean sendUpdates = contact
1287					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
1288					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
1289			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1290			iq.query("jabber:iq:roster").addChild(contact.asElement());
1291			account.getXmppConnection().sendIqPacket(iq, null);
1292			if (sendUpdates) {
1293				sendPresencePacket(account,
1294						mPresenceGenerator.sendPresenceUpdatesTo(contact));
1295			}
1296			if (ask) {
1297				sendPresencePacket(account,
1298						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
1299			}
1300		}
1301	}
1302
1303	public void publishAvatar(Account account, Uri image,
1304			final UiCallback<Avatar> callback) {
1305		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
1306		final int size = Config.AVATAR_SIZE;
1307		final Avatar avatar = getFileBackend()
1308				.getPepAvatar(image, size, format);
1309		if (avatar != null) {
1310			avatar.height = size;
1311			avatar.width = size;
1312			if (format.equals(Bitmap.CompressFormat.WEBP)) {
1313				avatar.type = "image/webp";
1314			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1315				avatar.type = "image/jpeg";
1316			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
1317				avatar.type = "image/png";
1318			}
1319			if (!getFileBackend().save(avatar)) {
1320				callback.error(R.string.error_saving_avatar, avatar);
1321				return;
1322			}
1323			IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
1324			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1325
1326				@Override
1327				public void onIqPacketReceived(Account account, IqPacket result) {
1328					if (result.getType() == IqPacket.TYPE_RESULT) {
1329						IqPacket packet = XmppConnectionService.this.mIqGenerator
1330								.publishAvatarMetadata(avatar);
1331						sendIqPacket(account, packet, new OnIqPacketReceived() {
1332
1333							@Override
1334							public void onIqPacketReceived(Account account,
1335									IqPacket result) {
1336								if (result.getType() == IqPacket.TYPE_RESULT) {
1337									if (account.setAvatar(avatar.getFilename())) {
1338										databaseBackend.updateAccount(account);
1339									}
1340									callback.success(avatar);
1341								} else {
1342									callback.error(
1343											R.string.error_publish_avatar_server_reject,
1344											avatar);
1345								}
1346							}
1347						});
1348					} else {
1349						callback.error(
1350								R.string.error_publish_avatar_server_reject,
1351								avatar);
1352					}
1353				}
1354			});
1355		} else {
1356			callback.error(R.string.error_publish_avatar_converting, null);
1357		}
1358	}
1359
1360	public void fetchAvatar(Account account, Avatar avatar) {
1361		fetchAvatar(account, avatar, null);
1362	}
1363
1364	public void fetchAvatar(Account account, final Avatar avatar,
1365			final UiCallback<Avatar> callback) {
1366		IqPacket packet = this.mIqGenerator.retrieveAvatar(avatar);
1367		sendIqPacket(account, packet, new OnIqPacketReceived() {
1368
1369			@Override
1370			public void onIqPacketReceived(Account account, IqPacket result) {
1371				final String ERROR = account.getJid()
1372						+ ": fetching avatar for " + avatar.owner + " failed ";
1373				if (result.getType() == IqPacket.TYPE_RESULT) {
1374					avatar.image = mIqParser.avatarData(result);
1375					if (avatar.image != null) {
1376						if (getFileBackend().save(avatar)) {
1377							if (account.getJid().equals(avatar.owner)) {
1378								if (account.setAvatar(avatar.getFilename())) {
1379									databaseBackend.updateAccount(account);
1380								}
1381							} else {
1382								Contact contact = account.getRoster()
1383										.getContact(avatar.owner);
1384								contact.setAvatar(avatar.getFilename());
1385							}
1386							if (callback != null) {
1387								callback.success(avatar);
1388							}
1389							Log.d(Config.LOGTAG, account.getJid()
1390									+ ": succesfully fetched avatar for "
1391									+ avatar.owner);
1392							return;
1393						}
1394					} else {
1395						
1396						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
1397					}
1398				} else {
1399					Element error = result.findChild("error");
1400					if (error==null) {
1401						Log.d(Config.LOGTAG, ERROR + "(server error)");
1402					} else {
1403						Log.d(Config.LOGTAG, ERROR + error.toString());
1404					}
1405				}
1406				if (callback != null) {
1407					callback.error(0, null);
1408				}
1409
1410			}
1411		});
1412	}
1413
1414	public void checkForAvatar(Account account,
1415			final UiCallback<Avatar> callback) {
1416		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
1417		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1418
1419			@Override
1420			public void onIqPacketReceived(Account account, IqPacket packet) {
1421				if (packet.getType() == IqPacket.TYPE_RESULT) {
1422					Element pubsub = packet.findChild("pubsub",
1423							"http://jabber.org/protocol/pubsub");
1424					if (pubsub != null) {
1425						Element items = pubsub.findChild("items");
1426						if (items != null) {
1427							Avatar avatar = Avatar.parseMetadata(items);
1428							if (avatar != null) {
1429								avatar.owner = account.getJid();
1430								if (fileBackend.isAvatarCached(avatar)) {
1431									if (account.setAvatar(avatar.getFilename())) {
1432										databaseBackend.updateAccount(account);
1433									}
1434									callback.success(avatar);
1435								} else {
1436									fetchAvatar(account, avatar, callback);
1437								}
1438								return;
1439							}
1440						}
1441					}
1442				}
1443				callback.error(0, null);
1444			}
1445		});
1446	}
1447
1448	public void deleteContactOnServer(Contact contact) {
1449		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
1450		contact.resetOption(Contact.Options.DIRTY_PUSH);
1451		contact.setOption(Contact.Options.DIRTY_DELETE);
1452		Account account = contact.getAccount();
1453		if (account.getStatus() == Account.STATUS_ONLINE) {
1454			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1455			Element item = iq.query("jabber:iq:roster").addChild("item");
1456			item.setAttribute("jid", contact.getJid());
1457			item.setAttribute("subscription", "remove");
1458			account.getXmppConnection().sendIqPacket(iq, null);
1459		}
1460	}
1461
1462	public void updateConversation(Conversation conversation) {
1463		this.databaseBackend.updateConversation(conversation);
1464	}
1465
1466	public void reconnectAccount(final Account account, final boolean force) {
1467		new Thread(new Runnable() {
1468
1469			@Override
1470			public void run() {
1471				if (account.getXmppConnection() != null) {
1472					disconnect(account, force);
1473				}
1474				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1475					if (account.getXmppConnection() == null) {
1476						account.setXmppConnection(createConnection(account));
1477					}
1478					Thread thread = new Thread(account.getXmppConnection());
1479					thread.start();
1480					scheduleWakeupCall((int) (Config.CONNECT_TIMEOUT * 1.2),
1481							false);
1482				}
1483			}
1484		}).start();
1485	}
1486
1487	public void invite(Conversation conversation, String contact) {
1488		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
1489		sendMessagePacket(conversation.getAccount(), packet);
1490	}
1491
1492	public void resetSendingToWaiting(Account account) {
1493		for (Conversation conversation : getConversations()) {
1494			if (conversation.getAccount() == account) {
1495				for (Message message : conversation.getMessages()) {
1496					if (message.getStatus() == Message.STATUS_UNSEND) {
1497						markMessage(message, Message.STATUS_WAITING);
1498					}
1499				}
1500			}
1501		}
1502	}
1503
1504	public boolean markMessage(Account account, String recipient, String uuid,
1505			int status) {
1506		for (Conversation conversation : getConversations()) {
1507			if (conversation.getContactJid().equals(recipient)
1508					&& conversation.getAccount().equals(account)) {
1509				return markMessage(conversation, uuid, status);
1510			}
1511		}
1512		return false;
1513	}
1514
1515	public boolean markMessage(Conversation conversation, String uuid,
1516			int status) {
1517		for (Message message : conversation.getMessages()) {
1518			if (message.getUuid().equals(uuid)) {
1519				markMessage(message, status);
1520				return true;
1521			}
1522		}
1523		return false;
1524	}
1525
1526	public void markMessage(Message message, int status) {
1527		message.setStatus(status);
1528		databaseBackend.updateMessage(message);
1529		updateConversationUi();
1530	}
1531
1532	public SharedPreferences getPreferences() {
1533		return PreferenceManager
1534				.getDefaultSharedPreferences(getApplicationContext());
1535	}
1536
1537	public boolean confirmMessages() {
1538		return getPreferences().getBoolean("confirm_messages", true);
1539	}
1540
1541	public void notifyUi(Conversation conversation, boolean notify) {
1542		if (mOnConversationUpdate != null) {
1543			mOnConversationUpdate.onConversationUpdate();
1544		} else {
1545			UIHelper.updateNotification(getApplicationContext(),
1546					getConversations(), conversation, notify);
1547		}
1548	}
1549
1550	public void updateConversationUi() {
1551		if (mOnConversationUpdate != null) {
1552			mOnConversationUpdate.onConversationUpdate();
1553		}
1554	}
1555
1556	public void updateAccountUi() {
1557		if (mOnAccountUpdate != null) {
1558			mOnAccountUpdate.onAccountUpdate();
1559		}
1560	}
1561
1562	public void updateRosterUi() {
1563		if (mOnRosterUpdate != null) {
1564			mOnRosterUpdate.onRosterUpdate();
1565		}
1566	}
1567
1568	public Account findAccountByJid(String accountJid) {
1569		for (Account account : this.accounts) {
1570			if (account.getJid().equals(accountJid)) {
1571				return account;
1572			}
1573		}
1574		return null;
1575	}
1576
1577	public Conversation findConversationByUuid(String uuid) {
1578		for (Conversation conversation : getConversations()) {
1579			if (conversation.getUuid().equals(uuid)) {
1580				return conversation;
1581			}
1582		}
1583		return null;
1584	}
1585
1586	public void markRead(Conversation conversation) {
1587		conversation.markRead();
1588		String id = conversation.popLatestMarkableMessageId();
1589		if (confirmMessages() && id != null) {
1590			Account account = conversation.getAccount();
1591			String to = conversation.getContactJid();
1592			this.sendMessagePacket(conversation.getAccount(),
1593					mMessageGenerator.confirm(account, to, id));
1594		}
1595	}
1596
1597	public void failWaitingOtrMessages(Conversation conversation) {
1598		for (Message message : conversation.getMessages()) {
1599			if (message.getEncryption() == Message.ENCRYPTION_OTR
1600					&& message.getStatus() == Message.STATUS_WAITING) {
1601				markMessage(message, Message.STATUS_SEND_FAILED);
1602			}
1603		}
1604	}
1605
1606	public SecureRandom getRNG() {
1607		return this.mRandom;
1608	}
1609
1610	public MemorizingTrustManager getMemorizingTrustManager() {
1611		return this.mMemorizingTrustManager;
1612	}
1613
1614	public PowerManager getPowerManager() {
1615		return this.pm;
1616	}
1617
1618	public void replyWithNotAcceptable(Account account, MessagePacket packet) {
1619		if (account.getStatus() == Account.STATUS_ONLINE) {
1620			MessagePacket error = this.mMessageGenerator
1621					.generateNotAcceptable(packet);
1622			sendMessagePacket(account, error);
1623		}
1624	}
1625
1626	public void syncRosterToDisk(final Account account) {
1627		new Thread(new Runnable() {
1628
1629			@Override
1630			public void run() {
1631				databaseBackend.writeRoster(account.getRoster());
1632			}
1633		}).start();
1634
1635	}
1636
1637	public List<String> getKnownHosts() {
1638		List<String> hosts = new ArrayList<String>();
1639		for (Account account : getAccounts()) {
1640			if (!hosts.contains(account.getServer())) {
1641				hosts.add(account.getServer());
1642			}
1643			for (Contact contact : account.getRoster().getContacts()) {
1644				if (contact.showInRoster()) {
1645					String server = contact.getServer();
1646					if (server != null && !hosts.contains(server)) {
1647						hosts.add(server);
1648					}
1649				}
1650			}
1651		}
1652		return hosts;
1653	}
1654
1655	public List<String> getKnownConferenceHosts() {
1656		ArrayList<String> mucServers = new ArrayList<String>();
1657		for (Account account : accounts) {
1658			if (account.getXmppConnection() != null) {
1659				String server = account.getXmppConnection().getMucServer();
1660				if (server != null && !mucServers.contains(server)) {
1661					mucServers.add(server);
1662				}
1663			}
1664		}
1665		return mucServers;
1666	}
1667
1668	public void sendMessagePacket(Account account, MessagePacket packet) {
1669		account.getXmppConnection().sendMessagePacket(packet);
1670	}
1671
1672	public void sendPresencePacket(Account account, PresencePacket packet) {
1673		account.getXmppConnection().sendPresencePacket(packet);
1674	}
1675
1676	public void sendIqPacket(Account account, IqPacket packet,
1677			OnIqPacketReceived callback) {
1678		account.getXmppConnection().sendIqPacket(packet, callback);
1679	}
1680
1681	public MessageGenerator getMessageGenerator() {
1682		return this.mMessageGenerator;
1683	}
1684
1685	public PresenceGenerator getPresenceGenerator() {
1686		return this.mPresenceGenerator;
1687	}
1688
1689	public IqGenerator getIqGenerator() {
1690		return this.mIqGenerator;
1691	}
1692
1693	public JingleConnectionManager getJingleConnectionManager() {
1694		return this.mJingleConnectionManager;
1695	}
1696
1697	public interface OnConversationUpdate {
1698		public void onConversationUpdate();
1699	}
1700
1701	public interface OnAccountUpdate {
1702		public void onAccountUpdate();
1703	}
1704
1705	public interface OnRosterUpdate {
1706		public void onRosterUpdate();
1707	}
1708}