1package eu.siacs.conversations.services;
   2
   3import java.text.ParseException;
   4import java.text.SimpleDateFormat;
   5import java.util.Date;
   6import java.util.Hashtable;
   7import java.util.List;
   8import java.util.Random;
   9
  10import org.json.JSONException;
  11import org.openintents.openpgp.util.OpenPgpApi;
  12import org.openintents.openpgp.util.OpenPgpServiceConnection;
  13
  14import net.java.otr4j.OtrException;
  15import net.java.otr4j.session.Session;
  16import net.java.otr4j.session.SessionStatus;
  17
  18import eu.siacs.conversations.crypto.PgpEngine;
  19import eu.siacs.conversations.crypto.PgpEngine.OpenPgpException;
  20import eu.siacs.conversations.entities.Account;
  21import eu.siacs.conversations.entities.Contact;
  22import eu.siacs.conversations.entities.Conversation;
  23import eu.siacs.conversations.entities.Message;
  24import eu.siacs.conversations.entities.MucOptions;
  25import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  26import eu.siacs.conversations.entities.Presences;
  27import eu.siacs.conversations.persistance.DatabaseBackend;
  28import eu.siacs.conversations.persistance.OnPhoneContactsMerged;
  29import eu.siacs.conversations.ui.OnAccountListChangedListener;
  30import eu.siacs.conversations.ui.OnConversationListChangedListener;
  31import eu.siacs.conversations.ui.OnRosterFetchedListener;
  32import eu.siacs.conversations.ui.XmppActivity;
  33import eu.siacs.conversations.utils.MessageParser;
  34import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  35import eu.siacs.conversations.utils.PhoneHelper;
  36import eu.siacs.conversations.utils.UIHelper;
  37import eu.siacs.conversations.xml.Element;
  38import eu.siacs.conversations.xmpp.IqPacket;
  39import eu.siacs.conversations.xmpp.MessagePacket;
  40import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  41import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
  42import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
  43import eu.siacs.conversations.xmpp.OnStatusChanged;
  44import eu.siacs.conversations.xmpp.OnTLSExceptionReceived;
  45import eu.siacs.conversations.xmpp.PresencePacket;
  46import eu.siacs.conversations.xmpp.XmppConnection;
  47import android.app.AlarmManager;
  48import android.app.NotificationManager;
  49import android.app.PendingIntent;
  50import android.app.Service;
  51import android.content.Context;
  52import android.content.Intent;
  53import android.content.SharedPreferences;
  54import android.database.ContentObserver;
  55import android.database.DatabaseUtils;
  56import android.net.ConnectivityManager;
  57import android.net.NetworkInfo;
  58import android.os.Binder;
  59import android.os.Bundle;
  60import android.os.IBinder;
  61import android.os.PowerManager;
  62import android.os.SystemClock;
  63import android.preference.PreferenceManager;
  64import android.provider.ContactsContract;
  65import android.util.Log;
  66import android.widget.Toast;
  67
  68public class XmppConnectionService extends Service {
  69
  70	protected static final String LOGTAG = "xmppService";
  71	public DatabaseBackend databaseBackend;
  72
  73	public long startDate;
  74
  75	private List<Account> accounts;
  76	private List<Conversation> conversations = null;
  77
  78	public OnConversationListChangedListener convChangedListener = null;
  79	private OnAccountListChangedListener accountChangedListener = null;
  80	private OnTLSExceptionReceived tlsException = null;
  81	
  82	public void setOnTLSExceptionReceivedListener(OnTLSExceptionReceived listener) {
  83		tlsException = listener;
  84	}
  85	
  86	private Random mRandom = new Random(System.currentTimeMillis());
  87
  88	private ContentObserver contactObserver = new ContentObserver(null) {
  89		@Override
  90		public void onChange(boolean selfChange) {
  91			super.onChange(selfChange);
  92			Log.d(LOGTAG, "contact list has changed");
  93			mergePhoneContactsWithRoster(null);
  94		}
  95	};
  96
  97	private XmppConnectionService service = this;
  98
  99	private final IBinder mBinder = new XmppConnectionBinder();
 100	private OnMessagePacketReceived messageListener = new OnMessagePacketReceived() {
 101
 102		@Override
 103		public void onMessagePacketReceived(Account account,
 104				MessagePacket packet) {
 105			Message message = null;
 106			boolean notify = false;
 107			if ((packet.getType() == MessagePacket.TYPE_CHAT)) {
 108				String pgpBody = MessageParser.getPgpBody(packet);
 109				if (pgpBody != null) {
 110					message = MessageParser.parsePgpChat(pgpBody, packet,
 111							account, service);
 112					notify = false;
 113				} else if (packet.hasChild("body")
 114						&& (packet.getBody().startsWith("?OTR"))) {
 115					message = MessageParser.parseOtrChat(packet, account,
 116							service);
 117					notify = true;
 118				} else if (packet.hasChild("body")) {
 119					message = MessageParser.parsePlainTextChat(packet, account,
 120							service);
 121					notify = true;
 122				} else if (packet.hasChild("received")
 123						|| (packet.hasChild("sent"))) {
 124					message = MessageParser.parseCarbonMessage(packet, account,
 125							service);
 126				}
 127
 128			} else if (packet.getType() == MessagePacket.TYPE_GROUPCHAT) {
 129				message = MessageParser
 130						.parseGroupchat(packet, account, service);
 131				if (message != null) {
 132					notify = (message.getStatus() == Message.STATUS_RECIEVED);
 133				}
 134			} else if (packet.getType() == MessagePacket.TYPE_ERROR) {
 135				message = MessageParser.parseError(packet, account, service);
 136			} else {
 137				//Log.d(LOGTAG, "unparsed message " + packet.toString());
 138			}
 139			if (message == null) {
 140				return;
 141			}
 142			if (packet.hasChild("delay")) {
 143				try {
 144					String stamp = packet.findChild("delay").getAttribute(
 145							"stamp");
 146					stamp = stamp.replace("Z", "+0000");
 147					Date date = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ")
 148							.parse(stamp);
 149					message.setTime(date.getTime());
 150				} catch (ParseException e) {
 151					Log.d(LOGTAG, "error trying to parse date" + e.getMessage());
 152				}
 153			}
 154			if (notify) {
 155				message.markUnread();
 156			}
 157			Conversation conversation = message.getConversation();
 158			conversation.getMessages().add(message);
 159			if (packet.getType() != MessagePacket.TYPE_ERROR) {
 160				databaseBackend.createMessage(message);
 161			}
 162			if (convChangedListener != null) {
 163				convChangedListener.onConversationListChanged();
 164			} else {
 165				if (notify) {
 166					NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
 167					mNotificationManager.notify(2342, UIHelper
 168							.getUnreadMessageNotification(
 169									getApplicationContext(), conversation));
 170				}
 171			}
 172		}
 173	};
 174	private OnStatusChanged statusListener = new OnStatusChanged() {
 175
 176		@Override
 177		public void onStatusChanged(Account account) {
 178			Log.d(LOGTAG,account.getJid()+" status switched to " + account.getStatus());
 179			if (accountChangedListener != null) {
 180				Log.d(LOGTAG,"notifiy ui");
 181				accountChangedListener.onAccountListChangedListener();
 182			}
 183			if (account.getStatus() == Account.STATUS_ONLINE) {
 184				databaseBackend.clearPresences(account);
 185				connectMultiModeConversations(account);
 186				List<Conversation> conversations = getConversations();
 187				for (int i = 0; i < conversations.size(); ++i) {
 188					if (conversations.get(i).getAccount() == account) {
 189						sendUnsendMessages(conversations.get(i));
 190					}
 191				}
 192				if (convChangedListener != null) {
 193					convChangedListener.onConversationListChanged();
 194				}
 195				if (account.getKeys().has("pgp_signature")) {
 196					try {
 197						sendPgpPresence(account, account.getKeys().getString("pgp_signature"));
 198					} catch (JSONException e) {
 199						//
 200					}
 201				}
 202			} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 203				Log.d(LOGTAG,"onStatusChanged offline");
 204				databaseBackend.clearPresences(account);
 205				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 206					int timeToReconnect = mRandom.nextInt(50)+10;
 207					scheduleWakeupCall(timeToReconnect);
 208				}
 209
 210			}
 211		}
 212	};
 213
 214	private OnPresencePacketReceived presenceListener = new OnPresencePacketReceived() {
 215
 216		@Override
 217		public void onPresencePacketReceived(Account account,
 218				PresencePacket packet) {
 219			if (packet.hasChild("x")&&(packet.findChild("x").getAttribute("xmlns").startsWith("http://jabber.org/protocol/muc"))) {
 220				Conversation muc = findMuc(packet.getAttribute("from").split("/")[0]);
 221				if (muc!=null) {
 222					int error = muc.getMucOptions().getError();
 223					muc.getMucOptions().processPacket(packet);
 224					if ((muc.getMucOptions().getError()!=error)&&(convChangedListener!=null)) {
 225						Log.d(LOGTAG,"muc error status changed");
 226						convChangedListener.onConversationListChanged();
 227					}
 228				}
 229			} else {
 230				String[] fromParts = packet.getAttribute("from").split("/");
 231				Contact contact = findContact(account, fromParts[0]);
 232				if (contact == null) {
 233					// most likely self or roster not synced
 234					return;
 235				}
 236				String type = packet.getAttribute("type");
 237				if (type == null) {
 238					Element show = packet.findChild("show");
 239					if (show == null) {
 240						contact.updatePresence(fromParts[1], Presences.ONLINE);
 241					} else if (show.getContent().equals("away")) {
 242						contact.updatePresence(fromParts[1], Presences.AWAY);
 243					} else if (show.getContent().equals("xa")) {
 244						contact.updatePresence(fromParts[1], Presences.XA);
 245					} else if (show.getContent().equals("chat")) {
 246						contact.updatePresence(fromParts[1], Presences.CHAT);
 247					} else if (show.getContent().equals("dnd")) {
 248						contact.updatePresence(fromParts[1], Presences.DND);
 249					}
 250					PgpEngine pgp = getPgpEngine();
 251					if (pgp!=null) {
 252						Element x = packet.findChild("x");
 253						if ((x != null)
 254								&& (x.getAttribute("xmlns").equals("jabber:x:signed"))) {
 255							try {
 256								Log.d(LOGTAG,"pgp signature for contact" +packet.getAttribute("from"));
 257								contact.setPgpKeyId(pgp.fetchKeyId(packet.findChild("status")
 258										.getContent(), x.getContent()));
 259							} catch (OpenPgpException e) {
 260								Log.d(LOGTAG,"faulty pgp. just ignore");
 261							}
 262						}
 263					}
 264					databaseBackend.updateContact(contact);
 265				} else if (type.equals("unavailable")) {
 266					if (fromParts.length != 2) {
 267						// Log.d(LOGTAG,"received presence with no resource "+packet.toString());
 268					} else {
 269						contact.removePresence(fromParts[1]);
 270						databaseBackend.updateContact(contact);
 271					}
 272				} else if (type.equals("subscribe")) {
 273					if (contact
 274							.getSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT)) {
 275						sendPresenceUpdatesTo(contact);
 276						contact.setSubscriptionOption(Contact.Subscription.FROM);
 277						contact.resetSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
 278						replaceContactInConversation(contact.getJid(), contact);
 279						databaseBackend.updateContact(contact);
 280						if ((contact
 281								.getSubscriptionOption(Contact.Subscription.ASKING))
 282								&& (!contact
 283										.getSubscriptionOption(Contact.Subscription.TO))) {
 284							requestPresenceUpdatesFrom(contact);
 285						}
 286					} else {
 287						// TODO: ask user to handle it maybe
 288					}
 289				} else {
 290					//Log.d(LOGTAG, packet.toString());
 291				}
 292				replaceContactInConversation(contact.getJid(), contact);
 293			}
 294		}
 295	};
 296
 297	private OnIqPacketReceived unknownIqListener = new OnIqPacketReceived() {
 298
 299		@Override
 300		public void onIqPacketReceived(Account account, IqPacket packet) {
 301			if (packet.hasChild("query")) {
 302				Element query = packet.findChild("query");
 303				String xmlns = query.getAttribute("xmlns");
 304				if ((xmlns != null) && (xmlns.equals("jabber:iq:roster"))) {
 305					processRosterItems(account, query);
 306					mergePhoneContactsWithRoster(null);
 307				}
 308			}
 309		}
 310	};
 311
 312	private OpenPgpServiceConnection pgpServiceConnection;
 313	private PgpEngine mPgpEngine = null;
 314
 315	public PgpEngine getPgpEngine() {
 316		if (pgpServiceConnection.isBound()) {
 317			if (this.mPgpEngine == null) {
 318				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 319						getApplicationContext(),
 320						pgpServiceConnection.getService()));
 321			}
 322			return mPgpEngine;
 323		} else {
 324			return null;
 325		}
 326
 327	}
 328
 329	protected Conversation findMuc(String name) {
 330		for(Conversation conversation : this.conversations) {
 331			if (conversation.getContactJid().split("/")[0].equals(name)) {
 332				return conversation;
 333			}
 334		}
 335		return null;
 336	}
 337
 338	private void processRosterItems(Account account, Element elements) {
 339		String version = elements.getAttribute("ver");
 340		if (version != null) {
 341			account.setRosterVersion(version);
 342			databaseBackend.updateAccount(account);
 343		}
 344		for (Element item : elements.getChildren()) {
 345			if (item.getName().equals("item")) {
 346				String jid = item.getAttribute("jid");
 347				String subscription = item.getAttribute("subscription");
 348				Contact contact = databaseBackend.findContact(account, jid);
 349				if (contact == null) {
 350					if (!subscription.equals("remove")) {
 351						String name = item.getAttribute("name");
 352						if (name == null) {
 353							name = jid.split("@")[0];
 354						}
 355						contact = new Contact(account, name, jid, null);
 356						contact.parseSubscriptionFromElement(item);
 357						databaseBackend.createContact(contact);
 358					}
 359				} else {
 360					if (subscription.equals("remove")) {
 361						databaseBackend.deleteContact(contact);
 362						replaceContactInConversation(contact.getJid(), null);
 363					} else {
 364						contact.parseSubscriptionFromElement(item);
 365						databaseBackend.updateContact(contact);
 366						replaceContactInConversation(contact.getJid(), contact);
 367					}
 368				}
 369			}
 370		}
 371	}
 372
 373	private void replaceContactInConversation(String jid, Contact contact) {
 374		List<Conversation> conversations = getConversations();
 375		for (int i = 0; i < conversations.size(); ++i) {
 376			if ((conversations.get(i).getContactJid().equals(jid))) {
 377				conversations.get(i).setContact(contact);
 378				break;
 379			}
 380		}
 381	}
 382
 383	public class XmppConnectionBinder extends Binder {
 384		public XmppConnectionService getService() {
 385			return XmppConnectionService.this;
 386		}
 387	}
 388
 389	@Override
 390	public int onStartCommand(Intent intent, int flags, int startId) {
 391		ConnectivityManager cm = (ConnectivityManager) getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE);
 392
 393		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 394		boolean isConnected = activeNetwork != null
 395				&& activeNetwork.isConnected();
 396		for (Account account : accounts) {
 397			if (!isConnected) {
 398				account.setStatus(Account.STATUS_NO_INTERNET);
 399			} else {
 400				if (account.getStatus() == Account.STATUS_NO_INTERNET) {
 401					account.setStatus(Account.STATUS_OFFLINE);
 402				}
 403			}
 404			if (accountChangedListener!=null) {
 405				accountChangedListener.onAccountListChangedListener();
 406			}
 407			if ((!account.isOptionSet(Account.OPTION_DISABLED))&&(isConnected)) {
 408				if (account.getXmppConnection() == null) {
 409					account.setXmppConnection(this.createConnection(account));
 410				}
 411				if (account.getStatus()==Account.STATUS_OFFLINE) {
 412					Thread thread = new Thread(account.getXmppConnection());
 413					thread.start();
 414				}
 415			}
 416		}
 417		return START_STICKY;
 418	}
 419
 420	@Override
 421	public void onCreate() {
 422		databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 423		this.accounts = databaseBackend.getAccounts();
 424
 425		getContentResolver().registerContentObserver(
 426				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 427		this.pgpServiceConnection = new OpenPgpServiceConnection(
 428				getApplicationContext(), "org.sufficientlysecure.keychain");
 429		this.pgpServiceConnection.bindToService();
 430		
 431		
 432	}
 433
 434	@Override
 435	public void onDestroy() {
 436		super.onDestroy();
 437		for (Account account : accounts) {
 438			if (account.getXmppConnection() != null) {
 439				disconnect(account);
 440			}
 441		}
 442	}
 443	
 444	protected void scheduleWakeupCall(int seconds) {
 445		Context context = getApplicationContext();
 446		AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
 447		Intent intent = new Intent(context, EventReceiver.class);
 448		PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
 449		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 450		        SystemClock.elapsedRealtime() +
 451		        seconds * 1000, alarmIntent);
 452		Log.d(LOGTAG,"wake up call scheduled in "+seconds+" seconds");
 453	}
 454
 455	public XmppConnection createConnection(Account account) {
 456		PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 457		XmppConnection connection = new XmppConnection(account, pm);
 458		connection.setOnMessagePacketReceivedListener(this.messageListener);
 459		connection.setOnStatusChangedListener(this.statusListener);
 460		connection.setOnPresencePacketReceivedListener(this.presenceListener);
 461		connection
 462				.setOnUnregisteredIqPacketReceivedListener(this.unknownIqListener);
 463		connection.setOnTLSExceptionReceivedListener(new OnTLSExceptionReceived() {
 464			
 465			@Override
 466			public void onTLSExceptionReceived(String fingerprint, Account account) {
 467				Log.d(LOGTAG,"tls exception arrived in service");
 468				if (tlsException!=null) {
 469					tlsException.onTLSExceptionReceived(fingerprint,account);
 470				}
 471			}
 472		});
 473		return connection;
 474	}
 475
 476	public void sendMessage(Message message, String presence) {
 477		Account account = message.getConversation().getAccount();
 478		Conversation conv = message.getConversation();
 479		boolean saveInDb = false;
 480		boolean addToConversation = false;
 481		if (account.getStatus() == Account.STATUS_ONLINE) {
 482			MessagePacket packet;
 483			if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 484				if (!conv.hasValidOtrSession()) {
 485					// starting otr session. messages will be send later
 486					conv.startOtrSession(getApplicationContext(), presence);
 487				} else if (conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 488					// otr session aleary exists, creating message packet
 489					// accordingly
 490					packet = prepareMessagePacket(account, message,
 491							conv.getOtrSession());
 492					account.getXmppConnection().sendMessagePacket(packet);
 493					message.setStatus(Message.STATUS_SEND);
 494				}
 495				saveInDb = true;
 496				addToConversation = true;
 497			} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 498				long keyId = message.getConversation().getContact()
 499						.getPgpKeyId();
 500				packet = new MessagePacket();
 501				packet.setType(MessagePacket.TYPE_CHAT);
 502				packet.setFrom(message.getConversation().getAccount()
 503						.getFullJid());
 504				packet.setTo(message.getCounterpart());
 505				packet.setBody("This is an XEP-0027 encryted message");
 506				Element x = new Element("x");
 507				x.setAttribute("xmlns", "jabber:x:encrypted");
 508				x.setContent(this.getPgpEngine().encrypt(keyId,
 509						message.getBody()));
 510				packet.addChild(x);
 511				Log.d(LOGTAG,"pgp message"+packet.toString());
 512				account.getXmppConnection().sendMessagePacket(packet);
 513				message.setStatus(Message.STATUS_SEND);
 514				message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 515				saveInDb = true;
 516				addToConversation = true;
 517			} else {
 518				// don't encrypt
 519				if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 520					message.setStatus(Message.STATUS_SEND);
 521					saveInDb = true;
 522					addToConversation = true;
 523				}
 524
 525				packet = prepareMessagePacket(account, message, null);
 526				account.getXmppConnection().sendMessagePacket(packet);
 527			}
 528		} else {
 529			// account is offline
 530			saveInDb = true;
 531			addToConversation = true;
 532
 533		}
 534		if (saveInDb) {
 535			databaseBackend.createMessage(message);
 536		}
 537		if (addToConversation) {
 538			conv.getMessages().add(message);
 539			if (convChangedListener != null) {
 540				convChangedListener.onConversationListChanged();
 541			}
 542		}
 543
 544	}
 545
 546	private void sendUnsendMessages(Conversation conversation) {
 547		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 548			if (conversation.getMessages().get(i).getStatus() == Message.STATUS_UNSEND) {
 549				Message message = conversation.getMessages().get(i);
 550				MessagePacket packet = prepareMessagePacket(
 551						conversation.getAccount(), message, null);
 552				conversation.getAccount().getXmppConnection()
 553						.sendMessagePacket(packet);
 554				message.setStatus(Message.STATUS_SEND);
 555				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 556					databaseBackend.updateMessage(message);
 557				} else {
 558					databaseBackend.deleteMessage(message);
 559					conversation.getMessages().remove(i);
 560					i--;
 561				}
 562			}
 563		}
 564	}
 565
 566	public MessagePacket prepareMessagePacket(Account account, Message message,
 567			Session otrSession) {
 568		MessagePacket packet = new MessagePacket();
 569		if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 570			packet.setType(MessagePacket.TYPE_CHAT);
 571			if (otrSession != null) {
 572				try {
 573					packet.setBody(otrSession.transformSending(message
 574							.getBody()));
 575				} catch (OtrException e) {
 576					Log.d(LOGTAG,
 577							account.getJid()
 578									+ ": could not encrypt message to "
 579									+ message.getCounterpart());
 580				}
 581				Element privateMarker = new Element("private");
 582				privateMarker.setAttribute("xmlns", "urn:xmpp:carbons:2");
 583				packet.addChild(privateMarker);
 584				packet.setTo(otrSession.getSessionID().getAccountID() + "/"
 585						+ otrSession.getSessionID().getUserID());
 586				packet.setFrom(account.getFullJid());
 587			} else {
 588				packet.setBody(message.getBody());
 589				packet.setTo(message.getCounterpart());
 590				packet.setFrom(account.getJid());
 591			}
 592		} else if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 593			packet.setType(MessagePacket.TYPE_GROUPCHAT);
 594			packet.setBody(message.getBody());
 595			packet.setTo(message.getCounterpart().split("/")[0]);
 596			packet.setFrom(account.getJid());
 597		}
 598		return packet;
 599	}
 600
 601	public void getRoster(Account account,
 602			final OnRosterFetchedListener listener) {
 603		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 604		for (int i = 0; i < contacts.size(); ++i) {
 605			contacts.get(i).setAccount(account);
 606		}
 607		if (listener != null) {
 608			listener.onRosterFetched(contacts);
 609		}
 610	}
 611
 612	public void updateRoster(final Account account,
 613			final OnRosterFetchedListener listener) {
 614		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 615		Element query = new Element("query");
 616		query.setAttribute("xmlns", "jabber:iq:roster");
 617		query.setAttribute("ver", account.getRosterVersion());
 618		iqPacket.addChild(query);
 619		account.getXmppConnection().sendIqPacket(iqPacket,
 620				new OnIqPacketReceived() {
 621
 622					@Override
 623					public void onIqPacketReceived(final Account account,
 624							IqPacket packet) {
 625						Element roster = packet.findChild("query");
 626						if (roster != null) {
 627							processRosterItems(account, roster);
 628							StringBuilder mWhere = new StringBuilder();
 629							mWhere.append("jid NOT IN(");
 630							List<Element> items = roster.getChildren();
 631							for (int i = 0; i < items.size(); ++i) {
 632								mWhere.append(DatabaseUtils
 633										.sqlEscapeString(items.get(i)
 634												.getAttribute("jid")));
 635								if (i != items.size() - 1) {
 636									mWhere.append(",");
 637								}
 638							}
 639							mWhere.append(") and accountUuid = \"");
 640							mWhere.append(account.getUuid());
 641							mWhere.append("\"");
 642							List<Contact> contactsToDelete = databaseBackend
 643									.getContacts(mWhere.toString());
 644							for (Contact contact : contactsToDelete) {
 645								databaseBackend.deleteContact(contact);
 646								replaceContactInConversation(contact.getJid(),
 647										null);
 648							}
 649
 650						}
 651						mergePhoneContactsWithRoster(new OnPhoneContactsMerged() {
 652
 653							@Override
 654							public void phoneContactsMerged() {
 655								if (listener != null) {
 656									getRoster(account, listener);
 657								}
 658							}
 659						});
 660					}
 661				});
 662	}
 663
 664	public void mergePhoneContactsWithRoster(
 665			final OnPhoneContactsMerged listener) {
 666		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 667				new OnPhoneContactsLoadedListener() {
 668					@Override
 669					public void onPhoneContactsLoaded(
 670							Hashtable<String, Bundle> phoneContacts) {
 671						List<Contact> contacts = databaseBackend
 672								.getContactsByAccount(null);
 673						for (int i = 0; i < contacts.size(); ++i) {
 674							Contact contact = contacts.get(i);
 675							if (phoneContacts.containsKey(contact.getJid())) {
 676								Bundle phoneContact = phoneContacts.get(contact
 677										.getJid());
 678								String systemAccount = phoneContact
 679										.getInt("phoneid")
 680										+ "#"
 681										+ phoneContact.getString("lookup");
 682								contact.setSystemAccount(systemAccount);
 683								contact.setPhotoUri(phoneContact
 684										.getString("photouri"));
 685								contact.setDisplayName(phoneContact
 686										.getString("displayname"));
 687								databaseBackend.updateContact(contact);
 688								replaceContactInConversation(contact.getJid(),
 689										contact);
 690							} else {
 691								if ((contact.getSystemAccount() != null)
 692										|| (contact.getProfilePhoto() != null)) {
 693									contact.setSystemAccount(null);
 694									contact.setPhotoUri(null);
 695									databaseBackend.updateContact(contact);
 696									replaceContactInConversation(
 697											contact.getJid(), contact);
 698								}
 699							}
 700						}
 701						if (listener != null) {
 702							listener.phoneContactsMerged();
 703						}
 704					}
 705				});
 706	}
 707
 708	public List<Conversation> getConversations() {
 709		if (this.conversations == null) {
 710			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
 711			for (Account account : this.accounts) {
 712				accountLookupTable.put(account.getUuid(), account);
 713			}
 714			this.conversations = databaseBackend
 715					.getConversations(Conversation.STATUS_AVAILABLE);
 716			for (Conversation conv : this.conversations) {
 717				Account account = accountLookupTable.get(conv.getAccountUuid());
 718				conv.setAccount(account);
 719				conv.setContact(findContact(account, conv.getContactJid()));
 720				conv.setMessages(databaseBackend.getMessages(conv, 50));
 721			}
 722		}
 723		return this.conversations;
 724	}
 725
 726	public List<Account> getAccounts() {
 727		return this.accounts;
 728	}
 729
 730	public Contact findContact(Account account, String jid) {
 731		Contact contact = databaseBackend.findContact(account, jid);
 732		if (contact != null) {
 733			contact.setAccount(account);
 734		}
 735		return contact;
 736	}
 737
 738	public Conversation findOrCreateConversation(Account account, String jid,
 739			boolean muc) {
 740		for (Conversation conv : this.getConversations()) {
 741			if ((conv.getAccount().equals(account))
 742					&& (conv.getContactJid().split("/")[0].equals(jid))) {
 743				return conv;
 744			}
 745		}
 746		Conversation conversation = databaseBackend.findConversation(account,
 747				jid);
 748		if (conversation != null) {
 749			conversation.setStatus(Conversation.STATUS_AVAILABLE);
 750			conversation.setAccount(account);
 751			if (muc) {
 752				conversation.setMode(Conversation.MODE_MULTI);
 753				if (account.getStatus() == Account.STATUS_ONLINE) {
 754					joinMuc(conversation);
 755				}
 756			} else {
 757				conversation.setMode(Conversation.MODE_SINGLE);
 758			}
 759			this.databaseBackend.updateConversation(conversation);
 760			conversation.setContact(findContact(account,
 761					conversation.getContactJid()));
 762		} else {
 763			String conversationName;
 764			Contact contact = findContact(account, jid);
 765			if (contact != null) {
 766				conversationName = contact.getDisplayName();
 767			} else {
 768				conversationName = jid.split("@")[0];
 769			}
 770			if (muc) {
 771				conversation = new Conversation(conversationName, account, jid,
 772						Conversation.MODE_MULTI);
 773				if (account.getStatus() == Account.STATUS_ONLINE) {
 774					joinMuc(conversation);
 775				}
 776			} else {
 777				conversation = new Conversation(conversationName, account, jid,
 778						Conversation.MODE_SINGLE);
 779			}
 780			conversation.setContact(contact);
 781			this.databaseBackend.createConversation(conversation);
 782		}
 783		this.conversations.add(conversation);
 784		if (this.convChangedListener != null) {
 785			this.convChangedListener.onConversationListChanged();
 786		}
 787		return conversation;
 788	}
 789
 790	public void archiveConversation(Conversation conversation) {
 791		if (conversation.getMode() == Conversation.MODE_MULTI) {
 792			leaveMuc(conversation);
 793		} else {
 794			try {
 795				conversation.endOtrIfNeeded();
 796			} catch (OtrException e) {
 797				Log.d(LOGTAG,
 798						"error ending otr session for "
 799								+ conversation.getName());
 800			}
 801		}
 802		this.databaseBackend.updateConversation(conversation);
 803		this.conversations.remove(conversation);
 804		if (this.convChangedListener != null) {
 805			this.convChangedListener.onConversationListChanged();
 806		}
 807	}
 808
 809	public int getConversationCount() {
 810		return this.databaseBackend.getConversationCount();
 811	}
 812
 813	public void createAccount(Account account) {
 814		databaseBackend.createAccount(account);
 815		this.accounts.add(account);
 816		account.setXmppConnection(this.createConnection(account));
 817		if (accountChangedListener != null)
 818			accountChangedListener.onAccountListChangedListener();
 819	}
 820
 821	public void deleteContact(Contact contact) {
 822		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
 823		Element query = new Element("query");
 824		query.setAttribute("xmlns", "jabber:iq:roster");
 825		Element item = new Element("item");
 826		item.setAttribute("jid", contact.getJid());
 827		item.setAttribute("subscription", "remove");
 828		query.addChild(item);
 829		iq.addChild(query);
 830		contact.getAccount().getXmppConnection().sendIqPacket(iq, null);
 831		replaceContactInConversation(contact.getJid(), null);
 832		databaseBackend.deleteContact(contact);
 833	}
 834
 835	public void updateAccount(Account account) {
 836		databaseBackend.updateAccount(account);
 837		reconnectAccount(account);
 838		if (accountChangedListener != null)
 839			accountChangedListener.onAccountListChangedListener();
 840	}
 841
 842	public void deleteAccount(Account account) {
 843		Log.d(LOGTAG, "called delete account");
 844		if (account.getXmppConnection() != null) {
 845			this.disconnect(account);
 846		}
 847		databaseBackend.deleteAccount(account);
 848		this.accounts.remove(account);
 849		if (accountChangedListener != null)
 850			accountChangedListener.onAccountListChangedListener();
 851	}
 852
 853	public void setOnConversationListChangedListener(
 854			OnConversationListChangedListener listener) {
 855		this.convChangedListener = listener;
 856	}
 857
 858	public void removeOnConversationListChangedListener() {
 859		this.convChangedListener = null;
 860	}
 861
 862	public void setOnAccountListChangedListener(
 863			OnAccountListChangedListener listener) {
 864		this.accountChangedListener = listener;
 865	}
 866
 867	public void removeOnAccountListChangedListener() {
 868		this.accountChangedListener = null;
 869	}
 870
 871	public void connectMultiModeConversations(Account account) {
 872		List<Conversation> conversations = getConversations();
 873		for (int i = 0; i < conversations.size(); i++) {
 874			Conversation conversation = conversations.get(i);
 875			if ((conversation.getMode() == Conversation.MODE_MULTI)
 876					&& (conversation.getAccount() == account)) {
 877				joinMuc(conversation);
 878			}
 879		}
 880	}
 881
 882	public void joinMuc(Conversation conversation) {
 883		String[] mucParts = conversation.getContactJid().split("/");
 884		String muc;
 885		String nick;
 886		if (mucParts.length == 2) {
 887			muc = mucParts[0];
 888			nick = mucParts[1];
 889		} else {
 890			muc = mucParts[0];
 891			nick = conversation.getAccount().getUsername();
 892		}
 893		PresencePacket packet = new PresencePacket();
 894		packet.setAttribute("to", muc + "/"
 895				+ nick);
 896		Element x = new Element("x");
 897		x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
 898		if (conversation.getMessages().size() != 0) {
 899			Element history = new Element("history");
 900			long lastMsgTime = conversation.getLatestMessage().getTimeSent();
 901			long diff = (System.currentTimeMillis() - lastMsgTime) / 1000 - 1;
 902			history.setAttribute("seconds", diff + "");
 903			x.addChild(history);
 904		}
 905		packet.addChild(x);
 906		conversation.getAccount().getXmppConnection()
 907				.sendPresencePacket(packet);
 908	}
 909	
 910	private OnRenameListener renameListener = null;
 911	public void setOnRenameListener(OnRenameListener listener) {
 912		this.renameListener = listener;
 913	}
 914	
 915	public void renameInMuc(final Conversation conversation, final String nick) {
 916		final MucOptions options = conversation.getMucOptions();
 917		if (options.online()) {
 918			options.setOnRenameListener(new OnRenameListener() {
 919				
 920				@Override
 921				public void onRename(boolean success) {
 922					if (renameListener!=null) {
 923						renameListener.onRename(success);
 924					}
 925					if (success) {
 926						databaseBackend.updateConversation(conversation);
 927					}
 928				}
 929			});
 930			PresencePacket packet = new PresencePacket();
 931			packet.setAttribute("to", conversation.getContactJid().split("/")[0]+"/"+nick);
 932			packet.setAttribute("from", conversation.getAccount().getFullJid());
 933			
 934			packet = conversation.getAccount().getXmppConnection().sendPresencePacket(packet, new OnPresencePacketReceived() {
 935				
 936				@Override
 937				public void onPresencePacketReceived(Account account, PresencePacket packet) {
 938					final boolean changed;
 939					String type = packet.getAttribute("type");
 940					changed = (!"error".equals(type));
 941					if (!changed) {
 942						options.getOnRenameListener().onRename(false);
 943					} else {
 944						if (type==null) {
 945							options.getOnRenameListener().onRename(true);
 946							options.setNick(packet.getAttribute("from").split("/")[1]);
 947						} else {
 948							options.processPacket(packet);
 949						}
 950					}
 951				}
 952			});
 953		} else {
 954			String jid = conversation.getContactJid().split("/")[0]+"/"+nick;
 955			conversation.setContactJid(jid);
 956			databaseBackend.updateConversation(conversation);
 957			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
 958				joinMuc(conversation);
 959			}
 960		}
 961	}
 962
 963	public void leaveMuc(Conversation conversation) {
 964		PresencePacket packet = new PresencePacket();
 965		packet.setAttribute("to", conversation.getContactJid());
 966		packet.setAttribute("from", conversation.getAccount().getFullJid());
 967		packet.setAttribute("type","unavailable");
 968		conversation.getAccount().getXmppConnection().sendPresencePacket(packet);
 969		conversation.getMucOptions().setOffline();
 970	}
 971
 972	public void disconnect(Account account) {
 973		List<Conversation> conversations = getConversations();
 974		for (int i = 0; i < conversations.size(); i++) {
 975			Conversation conversation = conversations.get(i);
 976			if (conversation.getAccount() == account) {
 977				if (conversation.getMode() == Conversation.MODE_MULTI) {
 978					leaveMuc(conversation);
 979				} else {
 980					try {
 981						conversation.endOtrIfNeeded();
 982					} catch (OtrException e) {
 983						Log.d(LOGTAG, "error ending otr session for "
 984								+ conversation.getName());
 985					}
 986				}
 987			}
 988		}
 989		account.getXmppConnection().disconnect();
 990		Log.d(LOGTAG, "disconnected account: " + account.getJid());
 991		account.setXmppConnection(null);
 992	}
 993
 994	@Override
 995	public IBinder onBind(Intent intent) {
 996		return mBinder;
 997	}
 998
 999	public void updateContact(Contact contact) {
1000		databaseBackend.updateContact(contact);
1001		replaceContactInConversation(contact.getJid(), contact);
1002	}
1003
1004	public void updateMessage(Message message) {
1005		databaseBackend.updateMessage(message);
1006	}
1007
1008	public void createContact(Contact contact) {
1009		SharedPreferences sharedPref = PreferenceManager
1010				.getDefaultSharedPreferences(getApplicationContext());
1011		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1012		if (autoGrant) {
1013			contact.setSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
1014			contact.setSubscriptionOption(Contact.Subscription.ASKING);
1015		}
1016		databaseBackend.createContact(contact);
1017		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1018		Element query = new Element("query");
1019		query.setAttribute("xmlns", "jabber:iq:roster");
1020		Element item = new Element("item");
1021		item.setAttribute("jid", contact.getJid());
1022		item.setAttribute("name", contact.getJid());
1023		query.addChild(item);
1024		iq.addChild(query);
1025		Account account = contact.getAccount();
1026		account.getXmppConnection().sendIqPacket(iq, null);
1027		if (autoGrant) {
1028			requestPresenceUpdatesFrom(contact);
1029		}
1030		replaceContactInConversation(contact.getJid(), contact);
1031	}
1032
1033	public void requestPresenceUpdatesFrom(Contact contact) {
1034		// Requesting a Subscription type=subscribe
1035		PresencePacket packet = new PresencePacket();
1036		packet.setAttribute("type", "subscribe");
1037		packet.setAttribute("to", contact.getJid());
1038		packet.setAttribute("from", contact.getAccount().getJid());
1039		Log.d(LOGTAG, packet.toString());
1040		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1041	}
1042
1043	public void stopPresenceUpdatesFrom(Contact contact) {
1044		// Unsubscribing type='unsubscribe'
1045		PresencePacket packet = new PresencePacket();
1046		packet.setAttribute("type", "unsubscribe");
1047		packet.setAttribute("to", contact.getJid());
1048		packet.setAttribute("from", contact.getAccount().getJid());
1049		Log.d(LOGTAG, packet.toString());
1050		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1051	}
1052
1053	public void stopPresenceUpdatesTo(Contact contact) {
1054		// Canceling a Subscription type=unsubscribed
1055		PresencePacket packet = new PresencePacket();
1056		packet.setAttribute("type", "unsubscribed");
1057		packet.setAttribute("to", contact.getJid());
1058		packet.setAttribute("from", contact.getAccount().getJid());
1059		Log.d(LOGTAG, packet.toString());
1060		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1061	}
1062
1063	public void sendPresenceUpdatesTo(Contact contact) {
1064		// type='subscribed'
1065		PresencePacket packet = new PresencePacket();
1066		packet.setAttribute("type", "subscribed");
1067		packet.setAttribute("to", contact.getJid());
1068		packet.setAttribute("from", contact.getAccount().getJid());
1069		Log.d(LOGTAG, packet.toString());
1070		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1071	}
1072	
1073	public void sendPgpPresence(Account account, String signature) {
1074		PresencePacket packet = new PresencePacket();
1075		packet.setAttribute("from", account.getFullJid());
1076		Element status = new Element("status");
1077		status.setContent("online");
1078		packet.addChild(status);
1079		Element x = new Element("x");
1080		x.setAttribute("xmlns", "jabber:x:signed");
1081		x.setContent(signature);
1082		packet.addChild(x);
1083		account.getXmppConnection().sendPresencePacket(packet);
1084	}
1085
1086	public void generatePgpAnnouncement(Account account)
1087			throws PgpEngine.UserInputRequiredException {
1088		if (account.getStatus() == Account.STATUS_ONLINE) {
1089			String signature = getPgpEngine().generateSignature("online");
1090			account.setKey("pgp_signature", signature);
1091			databaseBackend.updateAccount(account);
1092			sendPgpPresence(account, signature);
1093		}
1094	}
1095
1096	public void updateConversation(Conversation conversation) {
1097		this.databaseBackend.updateConversation(conversation);
1098	}
1099
1100	public Contact findContact(String uuid) {
1101		Contact contact = this.databaseBackend.getContact(uuid);
1102		for(Account account : getAccounts()) {
1103			if (contact.getAccountUuid().equals(account.getUuid())) {
1104				contact.setAccount(account);
1105			}
1106		}
1107		return contact;
1108	}
1109
1110	public void removeOnTLSExceptionReceivedListener() {
1111		this.tlsException = null;
1112	}
1113
1114	public void reconnectAccount(Account account) {
1115		if (account.getXmppConnection() != null) {
1116			disconnect(account);
1117		}
1118		if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1119			if (account.getXmppConnection()==null) {
1120				account.setXmppConnection(this.createConnection(account));
1121			}
1122			Thread thread = new Thread(account.getXmppConnection());
1123			thread.start();
1124		}
1125	}
1126}