rebranding

1 files changed, 946 insertions, 0 deletions

diff --git a/src/eu/siacs/conversations/services/XmppConnectionService.java b/src/eu/siacs/conversations/services/XmppConnectionService.java
new file mode 100644
index 000000000..218d5088b
--- /dev/null
+++ b/src/eu/siacs/conversations/services/XmppConnectionService.java
@@ -0,0 +1,946 @@
+package eu.siacs.conversations.services;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Hashtable;
+import java.util.List;
+
+import org.json.JSONException;
+import org.openintents.openpgp.util.OpenPgpApi;
+import org.openintents.openpgp.util.OpenPgpServiceConnection;
+
+import net.java.otr4j.OtrException;
+import net.java.otr4j.session.Session;
+import net.java.otr4j.session.SessionStatus;
+
+import eu.siacs.conversations.crypto.PgpEngine;
+import eu.siacs.conversations.crypto.PgpEngine.OpenPgpException;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Contact;
+import eu.siacs.conversations.entities.Conversation;
+import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.entities.Presences;
+import eu.siacs.conversations.persistance.DatabaseBackend;
+import eu.siacs.conversations.persistance.OnPhoneContactsMerged;
+import eu.siacs.conversations.ui.OnAccountListChangedListener;
+import eu.siacs.conversations.ui.OnConversationListChangedListener;
+import eu.siacs.conversations.ui.OnRosterFetchedListener;
+import eu.siacs.conversations.utils.MessageParser;
+import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
+import eu.siacs.conversations.utils.PhoneHelper;
+import eu.siacs.conversations.utils.UIHelper;
+import eu.siacs.conversations.xml.Element;
+import eu.siacs.conversations.xmpp.IqPacket;
+import eu.siacs.conversations.xmpp.MessagePacket;
+import eu.siacs.conversations.xmpp.OnIqPacketReceived;
+import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
+import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
+import eu.siacs.conversations.xmpp.OnStatusChanged;
+import eu.siacs.conversations.xmpp.PresencePacket;
+import eu.siacs.conversations.xmpp.XmppConnection;
+import android.app.NotificationManager;
+import android.app.Service;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.database.ContentObserver;
+import android.database.DatabaseUtils;
+import android.os.Binder;
+import android.os.Bundle;
+import android.os.IBinder;
+import android.os.PowerManager;
+import android.preference.PreferenceManager;
+import android.provider.ContactsContract;
+import android.util.Log;
+
+public class XmppConnectionService extends Service {
+
+	protected static final String LOGTAG = "xmppService";
+	public DatabaseBackend databaseBackend;
+
+	public long startDate;
+
+	private List<Account> accounts;
+	private List<Conversation> conversations = null;
+
+	public OnConversationListChangedListener convChangedListener = null;
+	private OnAccountListChangedListener accountChangedListener = null;
+
+	private ContentObserver contactObserver = new ContentObserver(null) {
+		@Override
+		public void onChange(boolean selfChange) {
+			super.onChange(selfChange);
+			Log.d(LOGTAG, "contact list has changed");
+			mergePhoneContactsWithRoster(null);
+		}
+	};
+
+	private XmppConnectionService service = this;
+
+	private final IBinder mBinder = new XmppConnectionBinder();
+	private OnMessagePacketReceived messageListener = new OnMessagePacketReceived() {
+
+		@Override
+		public void onMessagePacketReceived(Account account,
+				MessagePacket packet) {
+			Message message = null;
+			boolean notify = false;
+			if ((packet.getType() == MessagePacket.TYPE_CHAT)) {
+				String pgpBody = MessageParser.getPgpBody(packet);
+				if (pgpBody != null) {
+					message = MessageParser.parsePgpChat(pgpBody, packet,
+							account, service);
+					notify = false;
+				} else if (packet.hasChild("body")
+						&& (packet.getBody().startsWith("?OTR"))) {
+					message = MessageParser.parseOtrChat(packet, account,
+							service);
+					notify = true;
+				} else if (packet.hasChild("body")) {
+					message = MessageParser.parsePlainTextChat(packet, account,
+							service);
+					notify = true;
+				} else if (packet.hasChild("received")
+						|| (packet.hasChild("sent"))) {
+					message = MessageParser.parseCarbonMessage(packet, account,
+							service);
+				}
+
+			} else if (packet.getType() == MessagePacket.TYPE_GROUPCHAT) {
+				message = MessageParser
+						.parseGroupchat(packet, account, service);
+				if (message != null) {
+					notify = (message.getStatus() == Message.STATUS_RECIEVED);
+				}
+			} else if (packet.getType() == MessagePacket.TYPE_ERROR) {
+				message = MessageParser.parseError(packet, account, service);
+			} else {
+				Log.d(LOGTAG, "unparsed message " + packet.toString());
+			}
+			if (message == null) {
+				return;
+			}
+			if (packet.hasChild("delay")) {
+				try {
+					String stamp = packet.findChild("delay").getAttribute(
+							"stamp");
+					stamp = stamp.replace("Z", "+0000");
+					Date date = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ")
+							.parse(stamp);
+					message.setTime(date.getTime());
+				} catch (ParseException e) {
+					Log.d(LOGTAG, "error trying to parse date" + e.getMessage());
+				}
+			}
+			if (notify) {
+				message.markUnread();
+			}
+			Conversation conversation = message.getConversation();
+			conversation.getMessages().add(message);
+			if (packet.getType() != MessagePacket.TYPE_ERROR) {
+				databaseBackend.createMessage(message);
+			}
+			if (convChangedListener != null) {
+				convChangedListener.onConversationListChanged();
+			} else {
+				if (notify) {
+					NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
+					mNotificationManager.notify(2342, UIHelper
+							.getUnreadMessageNotification(
+									getApplicationContext(), conversation));
+				}
+			}
+		}
+	};
+	private OnStatusChanged statusListener = new OnStatusChanged() {
+
+		@Override
+		public void onStatusChanged(Account account) {
+			if (accountChangedListener != null) {
+				accountChangedListener.onAccountListChangedListener();
+			}
+			if (account.getStatus() == Account.STATUS_ONLINE) {
+				databaseBackend.clearPresences(account);
+				connectMultiModeConversations(account);
+				List<Conversation> conversations = getConversations();
+				for (int i = 0; i < conversations.size(); ++i) {
+					if (conversations.get(i).getAccount() == account) {
+						sendUnsendMessages(conversations.get(i));
+					}
+				}
+				if (convChangedListener != null) {
+					convChangedListener.onConversationListChanged();
+				}
+				if (account.getKeys().has("pgp_signature")) {
+					try {
+						sendPgpPresence(account, account.getKeys().getString("pgp_signature"));
+					} catch (JSONException e) {
+						//
+					}
+				}
+			}
+		}
+	};
+
+	private OnPresencePacketReceived presenceListener = new OnPresencePacketReceived() {
+
+		@Override
+		public void onPresencePacketReceived(Account account,
+				PresencePacket packet) {
+			if (packet.hasChild("x")&&(packet.findChild("x").getAttribute("xmlns").startsWith("http://jabber.org/protocol/muc"))) {
+				Log.d(LOGTAG,"got muc presence "+packet.toString());
+			} else {
+				String[] fromParts = packet.getAttribute("from").split("/");
+				Contact contact = findContact(account, fromParts[0]);
+				if (contact == null) {
+					// most likely self or roster not synced
+					return;
+				}
+				String type = packet.getAttribute("type");
+				if (type == null) {
+					Element show = packet.findChild("show");
+					if (show == null) {
+						contact.updatePresence(fromParts[1], Presences.ONLINE);
+					} else if (show.getContent().equals("away")) {
+						contact.updatePresence(fromParts[1], Presences.AWAY);
+					} else if (show.getContent().equals("xa")) {
+						contact.updatePresence(fromParts[1], Presences.XA);
+					} else if (show.getContent().equals("chat")) {
+						contact.updatePresence(fromParts[1], Presences.CHAT);
+					} else if (show.getContent().equals("dnd")) {
+						contact.updatePresence(fromParts[1], Presences.DND);
+					}
+					PgpEngine pgp = getPgpEngine();
+					if (pgp!=null) {
+						Element x = packet.findChild("x");
+						if ((x != null)
+								&& (x.getAttribute("xmlns").equals("jabber:x:signed"))) {
+							try {
+								Log.d(LOGTAG,"pgp signature for contact" +packet.getAttribute("from"));
+								contact.setPgpKeyId(pgp.fetchKeyId(packet.findChild("status")
+										.getContent(), x.getContent()));
+							} catch (OpenPgpException e) {
+								Log.d(LOGTAG,"faulty pgp. just ignore");
+							}
+						}
+					}
+					databaseBackend.updateContact(contact);
+				} else if (type.equals("unavailable")) {
+					if (fromParts.length != 2) {
+						// Log.d(LOGTAG,"received presence with no resource "+packet.toString());
+					} else {
+						contact.removePresence(fromParts[1]);
+						databaseBackend.updateContact(contact);
+					}
+				} else if (type.equals("subscribe")) {
+					if (contact
+							.getSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT)) {
+						sendPresenceUpdatesTo(contact);
+						contact.setSubscriptionOption(Contact.Subscription.FROM);
+						contact.resetSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
+						replaceContactInConversation(contact.getJid(), contact);
+						databaseBackend.updateContact(contact);
+						if ((contact
+								.getSubscriptionOption(Contact.Subscription.ASKING))
+								&& (!contact
+										.getSubscriptionOption(Contact.Subscription.TO))) {
+							requestPresenceUpdatesFrom(contact);
+						}
+					} else {
+						// TODO: ask user to handle it maybe
+					}
+				} else {
+					//Log.d(LOGTAG, packet.toString());
+				}
+				replaceContactInConversation(contact.getJid(), contact);
+			}
+		}
+	};
+
+	private OnIqPacketReceived unknownIqListener = new OnIqPacketReceived() {
+
+		@Override
+		public void onIqPacketReceived(Account account, IqPacket packet) {
+			if (packet.hasChild("query")) {
+				Element query = packet.findChild("query");
+				String xmlns = query.getAttribute("xmlns");
+				if ((xmlns != null) && (xmlns.equals("jabber:iq:roster"))) {
+					processRosterItems(account, query);
+					mergePhoneContactsWithRoster(null);
+				}
+			}
+		}
+	};
+
+	private OpenPgpServiceConnection pgpServiceConnection;
+	private PgpEngine mPgpEngine = null;
+
+	public PgpEngine getPgpEngine() {
+		if (pgpServiceConnection.isBound()) {
+			if (this.mPgpEngine == null) {
+				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
+						getApplicationContext(),
+						pgpServiceConnection.getService()));
+			}
+			return mPgpEngine;
+		} else {
+			return null;
+		}
+
+	}
+
+	private void processRosterItems(Account account, Element elements) {
+		String version = elements.getAttribute("ver");
+		if (version != null) {
+			account.setRosterVersion(version);
+			databaseBackend.updateAccount(account);
+		}
+		for (Element item : elements.getChildren()) {
+			if (item.getName().equals("item")) {
+				String jid = item.getAttribute("jid");
+				String subscription = item.getAttribute("subscription");
+				Contact contact = databaseBackend.findContact(account, jid);
+				if (contact == null) {
+					if (!subscription.equals("remove")) {
+						String name = item.getAttribute("name");
+						if (name == null) {
+							name = jid.split("@")[0];
+						}
+						contact = new Contact(account, name, jid, null);
+						contact.parseSubscriptionFromElement(item);
+						databaseBackend.createContact(contact);
+					}
+				} else {
+					if (subscription.equals("remove")) {
+						databaseBackend.deleteContact(contact);
+						replaceContactInConversation(contact.getJid(), null);
+					} else {
+						contact.parseSubscriptionFromElement(item);
+						databaseBackend.updateContact(contact);
+						replaceContactInConversation(contact.getJid(), contact);
+					}
+				}
+			}
+		}
+	}
+
+	private void replaceContactInConversation(String jid, Contact contact) {
+		List<Conversation> conversations = getConversations();
+		for (int i = 0; i < conversations.size(); ++i) {
+			if ((conversations.get(i).getContactJid().equals(jid))) {
+				conversations.get(i).setContact(contact);
+				break;
+			}
+		}
+	}
+
+	public class XmppConnectionBinder extends Binder {
+		public XmppConnectionService getService() {
+			return XmppConnectionService.this;
+		}
+	}
+
+	@Override
+	public int onStartCommand(Intent intent, int flags, int startId) {
+		for (Account account : accounts) {
+			if (account.getXmppConnection() == null) {
+				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
+					account.setXmppConnection(this.createConnection(account));
+				}
+			}
+		}
+		return START_STICKY;
+	}
+
+	@Override
+	public void onCreate() {
+		databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
+		this.accounts = databaseBackend.getAccounts();
+
+		getContentResolver().registerContentObserver(
+				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
+		this.pgpServiceConnection = new OpenPgpServiceConnection(
+				getApplicationContext(), "org.sufficientlysecure.keychain");
+		this.pgpServiceConnection.bindToService();
+	}
+
+	@Override
+	public void onDestroy() {
+		super.onDestroy();
+		for (Account account : accounts) {
+			if (account.getXmppConnection() != null) {
+				disconnect(account);
+			}
+		}
+	}
+
+	public XmppConnection createConnection(Account account) {
+		PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
+		XmppConnection connection = new XmppConnection(account, pm);
+		connection.setOnMessagePacketReceivedListener(this.messageListener);
+		connection.setOnStatusChangedListener(this.statusListener);
+		connection.setOnPresencePacketReceivedListener(this.presenceListener);
+		connection
+				.setOnUnregisteredIqPacketReceivedListener(this.unknownIqListener);
+		Thread thread = new Thread(connection);
+		thread.start();
+		return connection;
+	}
+
+	public void sendMessage(Message message, String presence) {
+		Account account = message.getConversation().getAccount();
+		Conversation conv = message.getConversation();
+		boolean saveInDb = false;
+		boolean addToConversation = false;
+		if (account.getStatus() == Account.STATUS_ONLINE) {
+			MessagePacket packet;
+			if (message.getEncryption() == Message.ENCRYPTION_OTR) {
+				if (!conv.hasValidOtrSession()) {
+					// starting otr session. messages will be send later
+					conv.startOtrSession(getApplicationContext(), presence);
+				} else if (conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
+					// otr session aleary exists, creating message packet
+					// accordingly
+					packet = prepareMessagePacket(account, message,
+							conv.getOtrSession());
+					account.getXmppConnection().sendMessagePacket(packet);
+					message.setStatus(Message.STATUS_SEND);
+				}
+				saveInDb = true;
+				addToConversation = true;
+			} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
+				long keyId = message.getConversation().getContact()
+						.getPgpKeyId();
+				packet = new MessagePacket();
+				packet.setType(MessagePacket.TYPE_CHAT);
+				packet.setFrom(message.getConversation().getAccount()
+						.getFullJid());
+				packet.setTo(message.getCounterpart());
+				packet.setBody("This is an XEP-0027 encryted message");
+				Element x = new Element("x");
+				x.setAttribute("xmlns", "jabber:x:encrypted");
+				x.setContent(this.getPgpEngine().encrypt(keyId,
+						message.getBody()));
+				packet.addChild(x);
+				account.getXmppConnection().sendMessagePacket(packet);
+				message.setStatus(Message.STATUS_SEND);
+				message.setEncryption(Message.ENCRYPTION_DECRYPTED);
+				saveInDb = true;
+				addToConversation = true;
+			} else {
+				// don't encrypt
+				if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
+					message.setStatus(Message.STATUS_SEND);
+					saveInDb = true;
+					addToConversation = true;
+				}
+
+				packet = prepareMessagePacket(account, message, null);
+				account.getXmppConnection().sendMessagePacket(packet);
+			}
+		} else {
+			// account is offline
+			saveInDb = true;
+			addToConversation = true;
+
+		}
+		if (saveInDb) {
+			databaseBackend.createMessage(message);
+		}
+		if (addToConversation) {
+			conv.getMessages().add(message);
+			if (convChangedListener != null) {
+				convChangedListener.onConversationListChanged();
+			}
+		}
+
+	}
+
+	private void sendUnsendMessages(Conversation conversation) {
+		for (int i = 0; i < conversation.getMessages().size(); ++i) {
+			if (conversation.getMessages().get(i).getStatus() == Message.STATUS_UNSEND) {
+				Message message = conversation.getMessages().get(i);
+				MessagePacket packet = prepareMessagePacket(
+						conversation.getAccount(), message, null);
+				conversation.getAccount().getXmppConnection()
+						.sendMessagePacket(packet);
+				message.setStatus(Message.STATUS_SEND);
+				if (conversation.getMode() == Conversation.MODE_SINGLE) {
+					databaseBackend.updateMessage(message);
+				} else {
+					databaseBackend.deleteMessage(message);
+					conversation.getMessages().remove(i);
+					i--;
+				}
+			}
+		}
+	}
+
+	public MessagePacket prepareMessagePacket(Account account, Message message,
+			Session otrSession) {
+		MessagePacket packet = new MessagePacket();
+		if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
+			packet.setType(MessagePacket.TYPE_CHAT);
+			if (otrSession != null) {
+				try {
+					packet.setBody(otrSession.transformSending(message
+							.getBody()));
+				} catch (OtrException e) {
+					Log.d(LOGTAG,
+							account.getJid()
+									+ ": could not encrypt message to "
+									+ message.getCounterpart());
+				}
+				Element privateMarker = new Element("private");
+				privateMarker.setAttribute("xmlns", "urn:xmpp:carbons:2");
+				packet.addChild(privateMarker);
+				packet.setTo(otrSession.getSessionID().getAccountID() + "/"
+						+ otrSession.getSessionID().getUserID());
+				packet.setFrom(account.getFullJid());
+			} else {
+				packet.setBody(message.getBody());
+				packet.setTo(message.getCounterpart());
+				packet.setFrom(account.getJid());
+			}
+		} else if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
+			packet.setType(MessagePacket.TYPE_GROUPCHAT);
+			packet.setBody(message.getBody());
+			packet.setTo(message.getCounterpart());
+			packet.setFrom(account.getJid());
+		}
+		return packet;
+	}
+
+	public void getRoster(Account account,
+			final OnRosterFetchedListener listener) {
+		List<Contact> contacts = databaseBackend.getContacts(account);
+		for (int i = 0; i < contacts.size(); ++i) {
+			contacts.get(i).setAccount(account);
+		}
+		if (listener != null) {
+			listener.onRosterFetched(contacts);
+		}
+	}
+
+	public void updateRoster(final Account account,
+			final OnRosterFetchedListener listener) {
+		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
+		Element query = new Element("query");
+		query.setAttribute("xmlns", "jabber:iq:roster");
+		query.setAttribute("ver", account.getRosterVersion());
+		iqPacket.addChild(query);
+		account.getXmppConnection().sendIqPacket(iqPacket,
+				new OnIqPacketReceived() {
+
+					@Override
+					public void onIqPacketReceived(final Account account,
+							IqPacket packet) {
+						Element roster = packet.findChild("query");
+						if (roster != null) {
+							processRosterItems(account, roster);
+							StringBuilder mWhere = new StringBuilder();
+							mWhere.append("jid NOT IN(");
+							List<Element> items = roster.getChildren();
+							for (int i = 0; i < items.size(); ++i) {
+								mWhere.append(DatabaseUtils
+										.sqlEscapeString(items.get(i)
+												.getAttribute("jid")));
+								if (i != items.size() - 1) {
+									mWhere.append(",");
+								}
+							}
+							mWhere.append(") and accountUuid = \"");
+							mWhere.append(account.getUuid());
+							mWhere.append("\"");
+							List<Contact> contactsToDelete = databaseBackend
+									.getContats(mWhere.toString());
+							for (Contact contact : contactsToDelete) {
+								databaseBackend.deleteContact(contact);
+								replaceContactInConversation(contact.getJid(),
+										null);
+							}
+
+						}
+						mergePhoneContactsWithRoster(new OnPhoneContactsMerged() {
+
+							@Override
+							public void phoneContactsMerged() {
+								if (listener != null) {
+									getRoster(account, listener);
+								}
+							}
+						});
+					}
+				});
+	}
+
+	public void mergePhoneContactsWithRoster(
+			final OnPhoneContactsMerged listener) {
+		PhoneHelper.loadPhoneContacts(getApplicationContext(),
+				new OnPhoneContactsLoadedListener() {
+					@Override
+					public void onPhoneContactsLoaded(
+							Hashtable<String, Bundle> phoneContacts) {
+						List<Contact> contacts = databaseBackend
+								.getContacts(null);
+						for (int i = 0; i < contacts.size(); ++i) {
+							Contact contact = contacts.get(i);
+							if (phoneContacts.containsKey(contact.getJid())) {
+								Bundle phoneContact = phoneContacts.get(contact
+										.getJid());
+								String systemAccount = phoneContact
+										.getInt("phoneid")
+										+ "#"
+										+ phoneContact.getString("lookup");
+								contact.setSystemAccount(systemAccount);
+								contact.setPhotoUri(phoneContact
+										.getString("photouri"));
+								contact.setDisplayName(phoneContact
+										.getString("displayname"));
+								databaseBackend.updateContact(contact);
+								replaceContactInConversation(contact.getJid(),
+										contact);
+							} else {
+								if ((contact.getSystemAccount() != null)
+										|| (contact.getProfilePhoto() != null)) {
+									contact.setSystemAccount(null);
+									contact.setPhotoUri(null);
+									databaseBackend.updateContact(contact);
+									replaceContactInConversation(
+											contact.getJid(), contact);
+								}
+							}
+						}
+						if (listener != null) {
+							listener.phoneContactsMerged();
+						}
+					}
+				});
+	}
+
+	public List<Conversation> getConversations() {
+		if (this.conversations == null) {
+			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
+			for (Account account : this.accounts) {
+				accountLookupTable.put(account.getUuid(), account);
+			}
+			this.conversations = databaseBackend
+					.getConversations(Conversation.STATUS_AVAILABLE);
+			for (Conversation conv : this.conversations) {
+				Account account = accountLookupTable.get(conv.getAccountUuid());
+				conv.setAccount(account);
+				conv.setContact(findContact(account, conv.getContactJid()));
+				conv.setMessages(databaseBackend.getMessages(conv, 50));
+			}
+		}
+		return this.conversations;
+	}
+
+	public List<Account> getAccounts() {
+		return this.accounts;
+	}
+
+	public Contact findContact(Account account, String jid) {
+		Contact contact = databaseBackend.findContact(account, jid);
+		if (contact != null) {
+			contact.setAccount(account);
+		}
+		return contact;
+	}
+
+	public Conversation findOrCreateConversation(Account account, String jid,
+			boolean muc) {
+		for (Conversation conv : this.getConversations()) {
+			if ((conv.getAccount().equals(account))
+					&& (conv.getContactJid().equals(jid))) {
+				return conv;
+			}
+		}
+		Conversation conversation = databaseBackend.findConversation(account,
+				jid);
+		if (conversation != null) {
+			conversation.setStatus(Conversation.STATUS_AVAILABLE);
+			conversation.setAccount(account);
+			if (muc) {
+				conversation.setMode(Conversation.MODE_MULTI);
+				if (account.getStatus() == Account.STATUS_ONLINE) {
+					joinMuc(conversation);
+				}
+			} else {
+				conversation.setMode(Conversation.MODE_SINGLE);
+			}
+			this.databaseBackend.updateConversation(conversation);
+			conversation.setContact(findContact(account,
+					conversation.getContactJid()));
+		} else {
+			String conversationName;
+			Contact contact = findContact(account, jid);
+			if (contact != null) {
+				conversationName = contact.getDisplayName();
+			} else {
+				conversationName = jid.split("@")[0];
+			}
+			if (muc) {
+				conversation = new Conversation(conversationName, account, jid,
+						Conversation.MODE_MULTI);
+				if (account.getStatus() == Account.STATUS_ONLINE) {
+					joinMuc(conversation);
+				}
+			} else {
+				conversation = new Conversation(conversationName, account, jid,
+						Conversation.MODE_SINGLE);
+			}
+			conversation.setContact(contact);
+			this.databaseBackend.createConversation(conversation);
+		}
+		this.conversations.add(conversation);
+		if (this.convChangedListener != null) {
+			this.convChangedListener.onConversationListChanged();
+		}
+		return conversation;
+	}
+
+	public void archiveConversation(Conversation conversation) {
+		if (conversation.getMode() == Conversation.MODE_MULTI) {
+			leaveMuc(conversation);
+		} else {
+			try {
+				conversation.endOtrIfNeeded();
+			} catch (OtrException e) {
+				Log.d(LOGTAG,
+						"error ending otr session for "
+								+ conversation.getName());
+			}
+		}
+		this.databaseBackend.updateConversation(conversation);
+		this.conversations.remove(conversation);
+		if (this.convChangedListener != null) {
+			this.convChangedListener.onConversationListChanged();
+		}
+	}
+
+	public int getConversationCount() {
+		return this.databaseBackend.getConversationCount();
+	}
+
+	public void createAccount(Account account) {
+		databaseBackend.createAccount(account);
+		this.accounts.add(account);
+		account.setXmppConnection(this.createConnection(account));
+		if (accountChangedListener != null)
+			accountChangedListener.onAccountListChangedListener();
+	}
+
+	public void deleteContact(Contact contact) {
+		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
+		Element query = new Element("query");
+		query.setAttribute("xmlns", "jabber:iq:roster");
+		Element item = new Element("item");
+		item.setAttribute("jid", contact.getJid());
+		item.setAttribute("subscription", "remove");
+		query.addChild(item);
+		iq.addChild(query);
+		contact.getAccount().getXmppConnection().sendIqPacket(iq, null);
+		replaceContactInConversation(contact.getJid(), null);
+		databaseBackend.deleteContact(contact);
+	}
+
+	public void updateAccount(Account account) {
+		databaseBackend.updateAccount(account);
+		if (account.getXmppConnection() != null) {
+			disconnect(account);
+		}
+		if (!account.isOptionSet(Account.OPTION_DISABLED)) {
+			account.setXmppConnection(this.createConnection(account));
+		}
+		if (accountChangedListener != null)
+			accountChangedListener.onAccountListChangedListener();
+	}
+
+	public void deleteAccount(Account account) {
+		Log.d(LOGTAG, "called delete account");
+		if (account.getXmppConnection() != null) {
+			this.disconnect(account);
+		}
+		databaseBackend.deleteAccount(account);
+		this.accounts.remove(account);
+		if (accountChangedListener != null)
+			accountChangedListener.onAccountListChangedListener();
+	}
+
+	public void setOnConversationListChangedListener(
+			OnConversationListChangedListener listener) {
+		this.convChangedListener = listener;
+	}
+
+	public void removeOnConversationListChangedListener() {
+		this.convChangedListener = null;
+	}
+
+	public void setOnAccountListChangedListener(
+			OnAccountListChangedListener listener) {
+		this.accountChangedListener = listener;
+	}
+
+	public void removeOnAccountListChangedListener() {
+		this.accountChangedListener = null;
+	}
+
+	public void connectMultiModeConversations(Account account) {
+		List<Conversation> conversations = getConversations();
+		for (int i = 0; i < conversations.size(); i++) {
+			Conversation conversation = conversations.get(i);
+			if ((conversation.getMode() == Conversation.MODE_MULTI)
+					&& (conversation.getAccount() == account)) {
+				joinMuc(conversation);
+			}
+		}
+	}
+
+	public void joinMuc(Conversation conversation) {
+		String muc = conversation.getContactJid();
+		PresencePacket packet = new PresencePacket();
+		packet.setAttribute("to", muc + "/"
+				+ conversation.getAccount().getUsername());
+		Element x = new Element("x");
+		x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
+		if (conversation.getMessages().size() != 0) {
+			Element history = new Element("history");
+			long lastMsgTime = conversation.getLatestMessage().getTimeSent();
+			long diff = (System.currentTimeMillis() - lastMsgTime) / 1000 - 1;
+			history.setAttribute("seconds", diff + "");
+			x.addChild(history);
+		}
+		packet.addChild(x);
+		conversation.getAccount().getXmppConnection()
+				.sendPresencePacket(packet);
+	}
+
+	public void leaveMuc(Conversation conversation) {
+
+	}
+
+	public void disconnect(Account account) {
+		List<Conversation> conversations = getConversations();
+		for (int i = 0; i < conversations.size(); i++) {
+			Conversation conversation = conversations.get(i);
+			if (conversation.getAccount() == account) {
+				if (conversation.getMode() == Conversation.MODE_MULTI) {
+					leaveMuc(conversation);
+				} else {
+					try {
+						conversation.endOtrIfNeeded();
+					} catch (OtrException e) {
+						Log.d(LOGTAG, "error ending otr session for "
+								+ conversation.getName());
+					}
+				}
+			}
+		}
+		account.getXmppConnection().disconnect();
+		Log.d(LOGTAG, "disconnected account: " + account.getJid());
+		account.setXmppConnection(null);
+	}
+
+	@Override
+	public IBinder onBind(Intent intent) {
+		return mBinder;
+	}
+
+	public void updateContact(Contact contact) {
+		databaseBackend.updateContact(contact);
+	}
+
+	public void updateMessage(Message message) {
+		databaseBackend.updateMessage(message);
+	}
+
+	public void createContact(Contact contact) {
+		SharedPreferences sharedPref = PreferenceManager
+				.getDefaultSharedPreferences(getApplicationContext());
+		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
+		if (autoGrant) {
+			contact.setSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
+			contact.setSubscriptionOption(Contact.Subscription.ASKING);
+		}
+		databaseBackend.createContact(contact);
+		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
+		Element query = new Element("query");
+		query.setAttribute("xmlns", "jabber:iq:roster");
+		Element item = new Element("item");
+		item.setAttribute("jid", contact.getJid());
+		item.setAttribute("name", contact.getJid());
+		query.addChild(item);
+		iq.addChild(query);
+		Account account = contact.getAccount();
+		account.getXmppConnection().sendIqPacket(iq, null);
+		if (autoGrant) {
+			requestPresenceUpdatesFrom(contact);
+		}
+		replaceContactInConversation(contact.getJid(), contact);
+	}
+
+	public void requestPresenceUpdatesFrom(Contact contact) {
+		// Requesting a Subscription type=subscribe
+		PresencePacket packet = new PresencePacket();
+		packet.setAttribute("type", "subscribe");
+		packet.setAttribute("to", contact.getJid());
+		packet.setAttribute("from", contact.getAccount().getJid());
+		Log.d(LOGTAG, packet.toString());
+		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
+	}
+
+	public void stopPresenceUpdatesFrom(Contact contact) {
+		// Unsubscribing type='unsubscribe'
+		PresencePacket packet = new PresencePacket();
+		packet.setAttribute("type", "unsubscribe");
+		packet.setAttribute("to", contact.getJid());
+		packet.setAttribute("from", contact.getAccount().getJid());
+		Log.d(LOGTAG, packet.toString());
+		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
+	}
+
+	public void stopPresenceUpdatesTo(Contact contact) {
+		// Canceling a Subscription type=unsubscribed
+		PresencePacket packet = new PresencePacket();
+		packet.setAttribute("type", "unsubscribed");
+		packet.setAttribute("to", contact.getJid());
+		packet.setAttribute("from", contact.getAccount().getJid());
+		Log.d(LOGTAG, packet.toString());
+		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
+	}
+
+	public void sendPresenceUpdatesTo(Contact contact) {
+		// type='subscribed'
+		PresencePacket packet = new PresencePacket();
+		packet.setAttribute("type", "subscribed");
+		packet.setAttribute("to", contact.getJid());
+		packet.setAttribute("from", contact.getAccount().getJid());
+		Log.d(LOGTAG, packet.toString());
+		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
+	}
+	
+	public void sendPgpPresence(Account account, String signature) {
+		PresencePacket packet = new PresencePacket();
+		packet.setAttribute("from", account.getFullJid());
+		Element status = new Element("status");
+		status.setContent("online");
+		packet.addChild(status);
+		Element x = new Element("x");
+		x.setAttribute("xmlns", "jabber:x:signed");
+		x.setContent(signature);
+		packet.addChild(x);
+		account.getXmppConnection().sendPresencePacket(packet);
+	}
+
+	public void generatePgpAnnouncement(Account account)
+			throws PgpEngine.UserInputRequiredException {
+		if (account.getStatus() == Account.STATUS_ONLINE) {
+			String signature = getPgpEngine().generateSignature("online");
+			account.setKey("pgp_signature", signature);
+			databaseBackend.updateAccount(account);
+			sendPgpPresence(account, signature);
+		}
+	}
+}
\ No newline at end of file