Merge branch 'gradle' into development

Conflicts:
	.gitignore
	CHANGELOG.md
	README.md
	libs/MemorizingTrustManager
	libs/minidns
	libs/openpgp-api-lib

5 files changed, 2621 insertions, 0 deletions

diff --git a/src/main/java/eu/siacs/conversations/services/AbstractConnectionManager.java b/src/main/java/eu/siacs/conversations/services/AbstractConnectionManager.java
new file mode 100644
index 00000000..676a09c9
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/services/AbstractConnectionManager.java
@@ -0,0 +1,23 @@
+package eu.siacs.conversations.services;
+
+public class AbstractConnectionManager {
+	protected XmppConnectionService mXmppConnectionService;
+
+	public AbstractConnectionManager(XmppConnectionService service) {
+		this.mXmppConnectionService = service;
+	}
+
+	public XmppConnectionService getXmppConnectionService() {
+		return this.mXmppConnectionService;
+	}
+
+	public long getAutoAcceptFileSize() {
+		String config = this.mXmppConnectionService.getPreferences().getString(
+				"auto_accept_file_size", "524288");
+		try {
+			return Long.parseLong(config);
+		} catch (NumberFormatException e) {
+			return 524288;
+		}
+	}
+}
diff --git a/src/main/java/eu/siacs/conversations/services/AvatarService.java b/src/main/java/eu/siacs/conversations/services/AvatarService.java
new file mode 100644
index 00000000..bd27b555
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/services/AvatarService.java
@@ -0,0 +1,292 @@
+package eu.siacs.conversations.services;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Bookmark;
+import eu.siacs.conversations.entities.Contact;
+import eu.siacs.conversations.entities.Conversation;
+import eu.siacs.conversations.entities.ListItem;
+import eu.siacs.conversations.entities.MucOptions;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Rect;
+import android.graphics.Typeface;
+import android.net.Uri;
+
+public class AvatarService {
+
+	private static final int FG_COLOR = 0xFFFAFAFA;
+	private static final int TRANSPARENT = 0x00000000;
+
+	private static final String PREFIX_CONTACT = "contact";
+	private static final String PREFIX_CONVERSATION = "conversation";
+	private static final String PREFIX_ACCOUNT = "account";
+	private static final String PREFIX_GENERIC = "generic";
+
+	private ArrayList<Integer> sizes = new ArrayList<Integer>();
+
+	protected XmppConnectionService mXmppConnectionService = null;
+
+	public AvatarService(XmppConnectionService service) {
+		this.mXmppConnectionService = service;
+	}
+
+	public Bitmap get(Contact contact, int size) {
+		final String KEY = key(contact, size);
+		Bitmap avatar = this.mXmppConnectionService.getBitmapCache().get(KEY);
+		if (avatar != null) {
+			return avatar;
+		}
+		avatar = mXmppConnectionService.getFileBackend().getAvatar(
+				contact.getAvatar(), size);
+		if (avatar == null) {
+			if (contact.getProfilePhoto() != null) {
+				avatar = mXmppConnectionService.getFileBackend()
+						.cropCenterSquare(Uri.parse(contact.getProfilePhoto()),
+								size);
+				if (avatar == null) {
+					avatar = get(contact.getDisplayName(), size);
+				}
+			} else {
+				avatar = get(contact.getDisplayName(), size);
+			}
+		}
+		this.mXmppConnectionService.getBitmapCache().put(KEY, avatar);
+		return avatar;
+	}
+
+	public void clear(Contact contact) {
+		for (Integer size : sizes) {
+			this.mXmppConnectionService.getBitmapCache().remove(
+					key(contact, size));
+		}
+	}
+
+	private String key(Contact contact, int size) {
+		synchronized (this.sizes) {
+			if (!this.sizes.contains(size)) {
+				this.sizes.add(size);
+			}
+		}
+		return PREFIX_CONTACT + "_" + contact.getAccount().getJid() + "_"
+				+ contact.getJid() + "_" + String.valueOf(size);
+	}
+
+	public Bitmap get(ListItem item, int size) {
+		if (item instanceof Contact) {
+			return get((Contact) item, size);
+		} else if (item instanceof Bookmark) {
+			Bookmark bookmark = (Bookmark) item;
+			if (bookmark.getConversation() != null) {
+				return get(bookmark.getConversation(), size);
+			} else {
+				return get(bookmark.getDisplayName(), size);
+			}
+		} else {
+			return get(item.getDisplayName(), size);
+		}
+	}
+
+	public Bitmap get(Conversation conversation, int size) {
+		if (conversation.getMode() == Conversation.MODE_SINGLE) {
+			return get(conversation.getContact(), size);
+		} else {
+			return get(conversation.getMucOptions(), size);
+		}
+	}
+
+	public void clear(Conversation conversation) {
+		if (conversation.getMode() == Conversation.MODE_SINGLE) {
+			clear(conversation.getContact());
+		} else {
+			clear(conversation.getMucOptions());
+		}
+	}
+
+	public Bitmap get(MucOptions mucOptions, int size) {
+		final String KEY = key(mucOptions, size);
+		Bitmap bitmap = this.mXmppConnectionService.getBitmapCache().get(KEY);
+		if (bitmap != null) {
+			return bitmap;
+		}
+		List<MucOptions.User> users = mucOptions.getUsers();
+		int count = users.size();
+		bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
+		Canvas canvas = new Canvas(bitmap);
+		bitmap.eraseColor(TRANSPARENT);
+
+		if (count == 0) {
+			String name = mucOptions.getConversation().getName();
+			String letter = name.substring(0, 1);
+			int color = this.getColorForName(name);
+			drawTile(canvas, letter, color, 0, 0, size, size);
+		} else if (count == 1) {
+			drawTile(canvas, users.get(0), 0, 0, size, size);
+		} else if (count == 2) {
+			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
+			drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size);
+		} else if (count == 3) {
+			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
+			drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size / 2 - 1);
+			drawTile(canvas, users.get(2), size / 2 + 1, size / 2 + 1, size,
+					size);
+		} else if (count == 4) {
+			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
+			drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
+			drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
+			drawTile(canvas, users.get(3), size / 2 + 1, size / 2 + 1, size,
+					size);
+		} else {
+			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
+			drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
+			drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
+			drawTile(canvas, "\u2026", 0xFF202020, size / 2 + 1, size / 2 + 1,
+					size, size);
+		}
+		this.mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
+		return bitmap;
+	}
+
+	public void clear(MucOptions options) {
+		for (Integer size : sizes) {
+			this.mXmppConnectionService.getBitmapCache().remove(
+					key(options, size));
+		}
+	}
+
+	private String key(MucOptions options, int size) {
+		synchronized (this.sizes) {
+			if (!this.sizes.contains(size)) {
+				this.sizes.add(size);
+			}
+		}
+		return PREFIX_CONVERSATION + "_" + options.getConversation().getUuid()
+				+ "_" + String.valueOf(size);
+	}
+
+	public Bitmap get(Account account, int size) {
+		final String KEY = key(account, size);
+		Bitmap avatar = mXmppConnectionService.getBitmapCache().get(KEY);
+		if (avatar != null) {
+			return avatar;
+		}
+		avatar = mXmppConnectionService.getFileBackend().getAvatar(
+				account.getAvatar(), size);
+		if (avatar == null) {
+			avatar = get(account.getJid(), size);
+		}
+		mXmppConnectionService.getBitmapCache().put(KEY, avatar);
+		return avatar;
+	}
+
+	public void clear(Account account) {
+		for (Integer size : sizes) {
+			this.mXmppConnectionService.getBitmapCache().remove(
+					key(account, size));
+		}
+	}
+
+	private String key(Account account, int size) {
+		synchronized (this.sizes) {
+			if (!this.sizes.contains(size)) {
+				this.sizes.add(size);
+			}
+		}
+		return PREFIX_ACCOUNT + "_" + account.getUuid() + "_"
+				+ String.valueOf(size);
+	}
+
+	public Bitmap get(String name, int size) {
+		final String KEY = key(name, size);
+		Bitmap bitmap = mXmppConnectionService.getBitmapCache().get(KEY);
+		if (bitmap != null) {
+			return bitmap;
+		}
+		bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
+		Canvas canvas = new Canvas(bitmap);
+		String letter = name.substring(0, 1);
+		int color = this.getColorForName(name);
+		drawTile(canvas, letter, color, 0, 0, size, size);
+		mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
+		return bitmap;
+	}
+
+	private String key(String name, int size) {
+		synchronized (this.sizes) {
+			if (!this.sizes.contains(size)) {
+				this.sizes.add(size);
+			}
+		}
+		return PREFIX_GENERIC + "_" + name + "_" + String.valueOf(size);
+	}
+
+	private void drawTile(Canvas canvas, String letter, int tileColor,
+			int left, int top, int right, int bottom) {
+		letter = letter.toUpperCase(Locale.getDefault());
+		Paint tilePaint = new Paint(), textPaint = new Paint();
+		tilePaint.setColor(tileColor);
+		textPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
+		textPaint.setColor(FG_COLOR);
+		textPaint.setTypeface(Typeface.create("sans-serif-light",
+				Typeface.NORMAL));
+		textPaint.setTextSize((float) ((right - left) * 0.8));
+		Rect rect = new Rect();
+
+		canvas.drawRect(new Rect(left, top, right, bottom), tilePaint);
+		textPaint.getTextBounds(letter, 0, 1, rect);
+		float width = textPaint.measureText(letter);
+		canvas.drawText(letter, (right + left) / 2 - width / 2, (top + bottom)
+				/ 2 + rect.height() / 2, textPaint);
+	}
+
+	private void drawTile(Canvas canvas, MucOptions.User user, int left,
+			int top, int right, int bottom) {
+		Contact contact = user.getContact();
+		if (contact != null) {
+			Uri uri = null;
+			if (contact.getAvatar() != null) {
+				uri = mXmppConnectionService.getFileBackend().getAvatarUri(
+						contact.getAvatar());
+			} else if (contact.getProfilePhoto() != null) {
+				uri = Uri.parse(contact.getProfilePhoto());
+			}
+			if (uri != null) {
+				Bitmap bitmap = mXmppConnectionService.getFileBackend()
+						.cropCenter(uri, bottom - top, right - left);
+				if (bitmap != null) {
+					drawTile(canvas, bitmap, left, top, right, bottom);
+				} else {
+					String letter = user.getName().substring(0, 1);
+					int color = this.getColorForName(user.getName());
+					drawTile(canvas, letter, color, left, top, right, bottom);
+				}
+			} else {
+				String letter = user.getName().substring(0, 1);
+				int color = this.getColorForName(user.getName());
+				drawTile(canvas, letter, color, left, top, right, bottom);
+			}
+		} else {
+			String letter = user.getName().substring(0, 1);
+			int color = this.getColorForName(user.getName());
+			drawTile(canvas, letter, color, left, top, right, bottom);
+		}
+	}
+
+	private void drawTile(Canvas canvas, Bitmap bm, int dstleft, int dsttop,
+			int dstright, int dstbottom) {
+		Rect dst = new Rect(dstleft, dsttop, dstright, dstbottom);
+		canvas.drawBitmap(bm, null, dst, null);
+	}
+
+	private int getColorForName(String name) {
+		int holoColors[] = { 0xFFe91e63, 0xFF9c27b0, 0xFF673ab7, 0xFF3f51b5,
+				0xFF5677fc, 0xFF03a9f4, 0xFF00bcd4, 0xFF009688, 0xFFff5722,
+				0xFF795548, 0xFF607d8b };
+		return holoColors[(int) ((name.hashCode() & 0xffffffffl) % holoColors.length)];
+	}
+
+}
diff --git a/src/main/java/eu/siacs/conversations/services/EventReceiver.java b/src/main/java/eu/siacs/conversations/services/EventReceiver.java
new file mode 100644
index 00000000..dfbe9db7
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/services/EventReceiver.java
@@ -0,0 +1,24 @@
+package eu.siacs.conversations.services;
+
+import eu.siacs.conversations.persistance.DatabaseBackend;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+
+public class EventReceiver extends BroadcastReceiver {
+	@Override
+	public void onReceive(Context context, Intent intent) {
+		Intent mIntentForService = new Intent(context,
+				XmppConnectionService.class);
+		if (intent.getAction() != null) {
+			mIntentForService.setAction(intent.getAction());
+		} else {
+			mIntentForService.setAction("other");
+		}
+		if (intent.getAction().equals("ui")
+				|| DatabaseBackend.getInstance(context).hasEnabledAccounts()) {
+			context.startService(mIntentForService);
+		}
+	}
+
+}
diff --git a/src/main/java/eu/siacs/conversations/services/NotificationService.java b/src/main/java/eu/siacs/conversations/services/NotificationService.java
new file mode 100644
index 00000000..7b2e16df
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/services/NotificationService.java
@@ -0,0 +1,333 @@
+package eu.siacs.conversations.services;
+
+import java.io.FileNotFoundException;
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.graphics.Bitmap;
+import android.net.Uri;
+import android.os.PowerManager;
+import android.os.SystemClock;
+import android.support.v4.app.NotificationCompat;
+import android.support.v4.app.NotificationCompat.BigPictureStyle;
+import android.support.v4.app.NotificationCompat.Builder;
+import android.support.v4.app.TaskStackBuilder;
+import android.text.Html;
+import android.util.DisplayMetrics;
+
+import eu.siacs.conversations.Config;
+import eu.siacs.conversations.R;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Conversation;
+import eu.siacs.conversations.entities.Downloadable;
+import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.ui.ConversationActivity;
+
+public class NotificationService {
+
+	private XmppConnectionService mXmppConnectionService;
+
+	private LinkedHashMap<String, ArrayList<Message>> notifications = new LinkedHashMap<String, ArrayList<Message>>();
+
+	public static int NOTIFICATION_ID = 0x2342;
+	private Conversation mOpenConversation;
+	private boolean mIsInForeground;
+	private long mLastNotification;
+
+	public NotificationService(XmppConnectionService service) {
+		this.mXmppConnectionService = service;
+	}
+
+	public void push(Message message) {
+		PowerManager pm = (PowerManager) mXmppConnectionService
+				.getSystemService(Context.POWER_SERVICE);
+		boolean isScreenOn = pm.isScreenOn();
+
+		if (this.mIsInForeground && isScreenOn
+				&& this.mOpenConversation == message.getConversation()) {
+			return;
+		}
+		synchronized (notifications) {
+			String conversationUuid = message.getConversationUuid();
+			if (notifications.containsKey(conversationUuid)) {
+				notifications.get(conversationUuid).add(message);
+			} else {
+				ArrayList<Message> mList = new ArrayList<Message>();
+				mList.add(message);
+				notifications.put(conversationUuid, mList);
+			}
+			Account account = message.getConversation().getAccount();
+			updateNotification((!(this.mIsInForeground && this.mOpenConversation == null) || !isScreenOn)
+					&& !account.inGracePeriod()
+					&& !this.inMiniGracePeriod(account));
+		}
+
+	}
+
+	public void clear() {
+		synchronized (notifications) {
+			notifications.clear();
+			updateNotification(false);
+		}
+	}
+
+	public void clear(Conversation conversation) {
+		synchronized (notifications) {
+			notifications.remove(conversation.getUuid());
+			updateNotification(false);
+		}
+	}
+
+	private void updateNotification(boolean notify) {
+		NotificationManager notificationManager = (NotificationManager) mXmppConnectionService
+				.getSystemService(Context.NOTIFICATION_SERVICE);
+		SharedPreferences preferences = mXmppConnectionService.getPreferences();
+
+		String ringtone = preferences.getString("notification_ringtone", null);
+		boolean vibrate = preferences.getBoolean("vibrate_on_notification",
+				true);
+
+		if (notifications.size() == 0) {
+			notificationManager.cancel(NOTIFICATION_ID);
+		} else {
+			if (notify) {
+				this.markLastNotification();
+			}
+			Builder mBuilder;
+			if (notifications.size() == 1) {
+				mBuilder = buildSingleConversations(notify);
+			} else {
+				mBuilder = buildMultipleConversation();
+			}
+			if (notify) {
+				if (vibrate) {
+					int dat = 70;
+					long[] pattern = { 0, 3 * dat, dat, dat };
+					mBuilder.setVibrate(pattern);
+				}
+				if (ringtone != null) {
+					mBuilder.setSound(Uri.parse(ringtone));
+				}
+			}
+			mBuilder.setSmallIcon(R.drawable.ic_notification);
+			mBuilder.setDeleteIntent(createDeleteIntent());
+			mBuilder.setLights(0xffffffff, 2000, 4000);
+			Notification notification = mBuilder.build();
+			notificationManager.notify(NOTIFICATION_ID, notification);
+		}
+	}
+
+	private Builder buildMultipleConversation() {
+		Builder mBuilder = new NotificationCompat.Builder(
+				mXmppConnectionService);
+		NotificationCompat.InboxStyle style = new NotificationCompat.InboxStyle();
+		style.setBigContentTitle(notifications.size()
+				+ " "
+				+ mXmppConnectionService
+						.getString(R.string.unread_conversations));
+		StringBuilder names = new StringBuilder();
+		Conversation conversation = null;
+		for (ArrayList<Message> messages : notifications.values()) {
+			if (messages.size() > 0) {
+				conversation = messages.get(0).getConversation();
+				String name = conversation.getName();
+				style.addLine(Html.fromHtml("<b>" + name + "</b> "
+						+ getReadableBody(messages.get(0))));
+				names.append(name);
+				names.append(", ");
+			}
+		}
+		if (names.length() >= 2) {
+			names.delete(names.length() - 2, names.length());
+		}
+		mBuilder.setContentTitle(notifications.size()
+				+ " "
+				+ mXmppConnectionService
+						.getString(R.string.unread_conversations));
+		mBuilder.setContentText(names.toString());
+		mBuilder.setStyle(style);
+		if (conversation != null) {
+			mBuilder.setContentIntent(createContentIntent(conversation
+					.getUuid()));
+		}
+		return mBuilder;
+	}
+
+	private Builder buildSingleConversations(boolean notify) {
+		Builder mBuilder = new NotificationCompat.Builder(
+				mXmppConnectionService);
+		ArrayList<Message> messages = notifications.values().iterator().next();
+		if (messages.size() >= 1) {
+			Conversation conversation = messages.get(0).getConversation();
+			mBuilder.setLargeIcon(mXmppConnectionService.getAvatarService()
+					.get(conversation, getPixel(64)));
+			mBuilder.setContentTitle(conversation.getName());
+			Message message;
+			if ((message = getImage(messages)) != null) {
+				modifyForImage(mBuilder, message, messages, notify);
+			} else {
+				modifyForTextOnly(mBuilder, messages, notify);
+			}
+			mBuilder.setContentIntent(createContentIntent(conversation
+					.getUuid()));
+		}
+		return mBuilder;
+
+	}
+
+	private void modifyForImage(Builder builder, Message message,
+			ArrayList<Message> messages, boolean notify) {
+		try {
+			Bitmap bitmap = mXmppConnectionService.getFileBackend()
+					.getThumbnail(message, getPixel(288), false);
+			ArrayList<Message> tmp = new ArrayList<Message>();
+			for (Message msg : messages) {
+				if (msg.getType() == Message.TYPE_TEXT
+						&& msg.getDownloadable() == null) {
+					tmp.add(msg);
+				}
+			}
+			BigPictureStyle bigPictureStyle = new NotificationCompat.BigPictureStyle();
+			bigPictureStyle.bigPicture(bitmap);
+			if (tmp.size() > 0) {
+				bigPictureStyle.setSummaryText(getMergedBodies(tmp));
+				builder.setContentText(getReadableBody(tmp.get(0)));
+			} else {
+				builder.setContentText(mXmppConnectionService.getString(R.string.image_file));
+			}
+			builder.setStyle(bigPictureStyle);
+		} catch (FileNotFoundException e) {
+			modifyForTextOnly(builder, messages, notify);
+		}
+	}
+
+	private void modifyForTextOnly(Builder builder,
+			ArrayList<Message> messages, boolean notify) {
+		builder.setStyle(new NotificationCompat.BigTextStyle()
+				.bigText(getMergedBodies(messages)));
+		builder.setContentText(getReadableBody(messages.get(0)));
+		if (notify) {
+			builder.setTicker(getReadableBody(messages.get(messages.size() - 1)));
+		}
+	}
+
+	private Message getImage(ArrayList<Message> messages) {
+		for (Message message : messages) {
+			if (message.getType() == Message.TYPE_IMAGE
+					&& message.getDownloadable() == null
+					&& message.getEncryption() != Message.ENCRYPTION_PGP) {
+				return message;
+			}
+		}
+		return null;
+	}
+
+	private String getMergedBodies(ArrayList<Message> messages) {
+		StringBuilder text = new StringBuilder();
+		for (int i = 0; i < messages.size(); ++i) {
+			text.append(getReadableBody(messages.get(i)));
+			if (i != messages.size() - 1) {
+				text.append("\n");
+			}
+		}
+		return text.toString();
+	}
+
+	private String getReadableBody(Message message) {
+		if (message.getDownloadable() != null
+				&& (message.getDownloadable().getStatus() == Downloadable.STATUS_OFFER || message
+						.getDownloadable().getStatus() == Downloadable.STATUS_OFFER_CHECK_FILESIZE)) {
+			return mXmppConnectionService.getText(
+					R.string.image_offered_for_download).toString();
+		} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
+			return mXmppConnectionService.getText(
+					R.string.encrypted_message_received).toString();
+		} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
+			return mXmppConnectionService.getText(R.string.decryption_failed)
+					.toString();
+		} else if (message.getType() == Message.TYPE_IMAGE) {
+			return mXmppConnectionService.getText(R.string.image_file)
+					.toString();
+		} else {
+			return message.getBody().trim();
+		}
+	}
+
+	private PendingIntent createContentIntent(String conversationUuid) {
+		TaskStackBuilder stackBuilder = TaskStackBuilder
+				.create(mXmppConnectionService);
+		stackBuilder.addParentStack(ConversationActivity.class);
+
+		Intent viewConversationIntent = new Intent(mXmppConnectionService,
+				ConversationActivity.class);
+		viewConversationIntent.setAction(Intent.ACTION_VIEW);
+		viewConversationIntent.putExtra(ConversationActivity.CONVERSATION,
+				conversationUuid);
+		viewConversationIntent.setType(ConversationActivity.VIEW_CONVERSATION);
+
+		stackBuilder.addNextIntent(viewConversationIntent);
+
+		PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0,
+				PendingIntent.FLAG_UPDATE_CURRENT);
+		return resultPendingIntent;
+	}
+
+	private PendingIntent createDeleteIntent() {
+		Intent intent = new Intent(mXmppConnectionService,
+				XmppConnectionService.class);
+		intent.setAction("clear_notification");
+		return PendingIntent.getService(mXmppConnectionService, 0, intent, 0);
+	}
+
+	public static boolean wasHighlightedOrPrivate(Message message) {
+		String nick = message.getConversation().getMucOptions().getActualNick();
+		Pattern highlight = generateNickHighlightPattern(nick);
+		if (message.getBody() == null || nick == null) {
+			return false;
+		}
+		Matcher m = highlight.matcher(message.getBody());
+		return (m.find() || message.getType() == Message.TYPE_PRIVATE);
+	}
+
+	private static Pattern generateNickHighlightPattern(String nick) {
+		// We expect a word boundary, i.e. space or start of string, followed by
+		// the
+		// nick (matched in case-insensitive manner), followed by optional
+		// punctuation (for example "bob: i disagree" or "how are you alice?"),
+		// followed by another word boundary.
+		return Pattern.compile("\\b" + nick + "\\p{Punct}?\\b",
+				Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE);
+	}
+
+	public void setOpenConversation(Conversation conversation) {
+		this.mOpenConversation = conversation;
+	}
+
+	public void setIsInForeground(boolean foreground) {
+		this.mIsInForeground = foreground;
+	}
+
+	private int getPixel(int dp) {
+		DisplayMetrics metrics = mXmppConnectionService.getResources()
+				.getDisplayMetrics();
+		return ((int) (dp * metrics.density));
+	}
+
+	private void markLastNotification() {
+		this.mLastNotification = SystemClock.elapsedRealtime();
+	}
+
+	private boolean inMiniGracePeriod(Account account) {
+		int miniGrace = account.getStatus() == Account.STATUS_ONLINE ? Config.MINI_GRACE_PERIOD
+				: Config.MINI_GRACE_PERIOD * 2;
+		return SystemClock.elapsedRealtime() < (this.mLastNotification + miniGrace);
+	}
+}
diff --git a/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
new file mode 100644
index 00000000..be73e07f
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
@@ -0,0 +1,1949 @@
+package eu.siacs.conversations.services;
+
+import java.security.SecureRandom;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.Date;
+import java.util.Hashtable;
+import java.util.List;
+import java.util.Locale;
+import java.util.TimeZone;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import org.openintents.openpgp.util.OpenPgpApi;
+import org.openintents.openpgp.util.OpenPgpServiceConnection;
+
+import de.duenndns.ssl.MemorizingTrustManager;
+
+import net.java.otr4j.OtrException;
+import net.java.otr4j.session.Session;
+import net.java.otr4j.session.SessionStatus;
+import eu.siacs.conversations.Config;
+import eu.siacs.conversations.R;
+import eu.siacs.conversations.crypto.PgpEngine;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Bookmark;
+import eu.siacs.conversations.entities.Contact;
+import eu.siacs.conversations.entities.Conversation;
+import eu.siacs.conversations.entities.Downloadable;
+import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.entities.MucOptions;
+import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
+import eu.siacs.conversations.entities.Presences;
+import eu.siacs.conversations.generator.IqGenerator;
+import eu.siacs.conversations.generator.MessageGenerator;
+import eu.siacs.conversations.generator.PresenceGenerator;
+import eu.siacs.conversations.http.HttpConnectionManager;
+import eu.siacs.conversations.parser.IqParser;
+import eu.siacs.conversations.parser.MessageParser;
+import eu.siacs.conversations.parser.PresenceParser;
+import eu.siacs.conversations.persistance.DatabaseBackend;
+import eu.siacs.conversations.persistance.FileBackend;
+import eu.siacs.conversations.ui.UiCallback;
+import eu.siacs.conversations.utils.CryptoHelper;
+import eu.siacs.conversations.utils.ExceptionHelper;
+import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
+import eu.siacs.conversations.utils.PRNGFixes;
+import eu.siacs.conversations.utils.PhoneHelper;
+import eu.siacs.conversations.utils.UIHelper;
+import eu.siacs.conversations.xml.Element;
+import eu.siacs.conversations.xmpp.OnBindListener;
+import eu.siacs.conversations.xmpp.OnContactStatusChanged;
+import eu.siacs.conversations.xmpp.OnIqPacketReceived;
+import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
+import eu.siacs.conversations.xmpp.OnStatusChanged;
+import eu.siacs.conversations.xmpp.XmppConnection;
+import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
+import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
+import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
+import eu.siacs.conversations.xmpp.pep.Avatar;
+import eu.siacs.conversations.xmpp.stanzas.IqPacket;
+import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
+import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
+import android.annotation.SuppressLint;
+import android.app.AlarmManager;
+import android.app.PendingIntent;
+import android.app.Service;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.database.ContentObserver;
+import android.graphics.Bitmap;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+import android.net.Uri;
+import android.os.Binder;
+import android.os.Bundle;
+import android.os.FileObserver;
+import android.os.IBinder;
+import android.os.PowerManager;
+import android.os.PowerManager.WakeLock;
+import android.os.SystemClock;
+import android.preference.PreferenceManager;
+import android.provider.ContactsContract;
+import android.util.Log;
+import android.util.LruCache;
+
+public class XmppConnectionService extends Service {
+
+	public DatabaseBackend databaseBackend;
+	private FileBackend fileBackend = new FileBackend(this);
+
+	public long startDate;
+
+	private static String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
+	public static String ACTION_CLEAR_NOTIFICATION = "clear_notification";
+
+	private MemorizingTrustManager mMemorizingTrustManager;
+
+	private NotificationService mNotificationService = new NotificationService(
+			this);
+
+	private MessageParser mMessageParser = new MessageParser(this);
+	private PresenceParser mPresenceParser = new PresenceParser(this);
+	private IqParser mIqParser = new IqParser(this);
+	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
+	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
+
+	private List<Account> accounts;
+	private CopyOnWriteArrayList<Conversation> conversations = null;
+	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
+			this);
+	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
+			this);
+	private AvatarService mAvatarService = new AvatarService(this);
+
+	private OnConversationUpdate mOnConversationUpdate = null;
+	private Integer convChangedListenerCount = 0;
+	private OnAccountUpdate mOnAccountUpdate = null;
+	private Integer accountChangedListenerCount = 0;
+	private OnRosterUpdate mOnRosterUpdate = null;
+	private Integer rosterChangedListenerCount = 0;
+	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
+
+		@Override
+		public void onContactStatusChanged(Contact contact, boolean online) {
+			Conversation conversation = find(getConversations(), contact);
+			if (conversation != null) {
+				if (online && contact.getPresences().size() > 1) {
+					conversation.endOtrIfNeeded();
+				} else {
+					conversation.resetOtrSession();
+				}
+				if (online && (contact.getPresences().size() == 1)) {
+					sendUnsendMessages(conversation);
+				}
+			}
+		}
+	};
+
+	private SecureRandom mRandom;
+
+	private ContentObserver contactObserver = new ContentObserver(null) {
+		@Override
+		public void onChange(boolean selfChange) {
+			super.onChange(selfChange);
+			Intent intent = new Intent(getApplicationContext(),
+					XmppConnectionService.class);
+			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
+			startService(intent);
+		}
+	};
+
+	private FileObserver fileObserver = new FileObserver(
+			FileBackend.getConversationsDirectory()) {
+
+		@Override
+		public void onEvent(int event, String path) {
+			if (event == FileObserver.DELETE) {
+				markFileDeleted(path.split("\\.")[0]);
+			}
+		}
+	};
+
+	private final IBinder mBinder = new XmppConnectionBinder();
+	private OnStatusChanged statusListener = new OnStatusChanged() {
+
+		@Override
+		public void onStatusChanged(Account account) {
+			XmppConnection connection = account.getXmppConnection();
+			if (mOnAccountUpdate != null) {
+				mOnAccountUpdate.onAccountUpdate();
+				;
+			}
+			if (account.getStatus() == Account.STATUS_ONLINE) {
+				for (Conversation conversation : account.pendingConferenceLeaves) {
+					leaveMuc(conversation);
+				}
+				for (Conversation conversation : account.pendingConferenceJoins) {
+					joinMuc(conversation);
+				}
+				mJingleConnectionManager.cancelInTransmission();
+				List<Conversation> conversations = getConversations();
+				for (int i = 0; i < conversations.size(); ++i) {
+					if (conversations.get(i).getAccount() == account) {
+						conversations.get(i).startOtrIfNeeded();
+						sendUnsendMessages(conversations.get(i));
+					}
+				}
+				if (connection != null && connection.getFeatures().csi()) {
+					if (checkListeners()) {
+						Log.d(Config.LOGTAG, account.getJid()
+								+ " sending csi//inactive");
+						connection.sendInactive();
+					} else {
+						Log.d(Config.LOGTAG, account.getJid()
+								+ " sending csi//active");
+						connection.sendActive();
+					}
+				}
+				syncDirtyContacts(account);
+				scheduleWakeupCall(Config.PING_MAX_INTERVAL, true);
+			} else if (account.getStatus() == Account.STATUS_OFFLINE) {
+				resetSendingToWaiting(account);
+				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
+					int timeToReconnect = mRandom.nextInt(50) + 10;
+					scheduleWakeupCall(timeToReconnect, false);
+				}
+			} else if (account.getStatus() == Account.STATUS_REGISTRATION_SUCCESSFULL) {
+				databaseBackend.updateAccount(account);
+				reconnectAccount(account, true);
+			} else if ((account.getStatus() != Account.STATUS_CONNECTING)
+					&& (account.getStatus() != Account.STATUS_NO_INTERNET)) {
+				if (connection != null) {
+					int next = connection.getTimeToNextAttempt();
+					Log.d(Config.LOGTAG, account.getJid()
+							+ ": error connecting account. try again in "
+							+ next + "s for the "
+							+ (connection.getAttempt() + 1) + " time");
+					scheduleWakeupCall((int) (next * 1.2), false);
+				}
+			}
+			UIHelper.showErrorNotification(getApplicationContext(),
+					getAccounts());
+		}
+	};
+
+	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
+
+		@Override
+		public void onJinglePacketReceived(Account account, JinglePacket packet) {
+			mJingleConnectionManager.deliverPacket(account, packet);
+		}
+	};
+
+	private OpenPgpServiceConnection pgpServiceConnection;
+	private PgpEngine mPgpEngine = null;
+	private Intent pingIntent;
+	private PendingIntent pendingPingIntent = null;
+	private WakeLock wakeLock;
+	private PowerManager pm;
+	private OnBindListener mOnBindListener = new OnBindListener() {
+
+		@Override
+		public void onBind(final Account account) {
+			account.getRoster().clearPresences();
+			account.clearPresences(); // self presences
+			account.pendingConferenceJoins.clear();
+			account.pendingConferenceLeaves.clear();
+			fetchRosterFromServer(account);
+			fetchBookmarks(account);
+			sendPresencePacket(account,
+					mPresenceGenerator.sendPresence(account));
+			connectMultiModeConversations(account);
+			updateConversationUi();
+		}
+	};
+
+	private OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
+
+		@Override
+		public void onMessageAcknowledged(Account account, String uuid) {
+			for (Conversation conversation : getConversations()) {
+				if (conversation.getAccount() == account) {
+					for (Message message : conversation.getMessages()) {
+						if ((message.getStatus() == Message.STATUS_UNSEND || message
+								.getStatus() == Message.STATUS_WAITING)
+								&& message.getUuid().equals(uuid)) {
+							markMessage(message, Message.STATUS_SEND);
+							return;
+						}
+					}
+				}
+			}
+		}
+	};
+	private LruCache<String, Bitmap> mBitmapCache;
+
+	public PgpEngine getPgpEngine() {
+		if (pgpServiceConnection.isBound()) {
+			if (this.mPgpEngine == null) {
+				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
+						getApplicationContext(),
+						pgpServiceConnection.getService()), this);
+			}
+			return mPgpEngine;
+		} else {
+			return null;
+		}
+
+	}
+
+	public FileBackend getFileBackend() {
+		return this.fileBackend;
+	}
+
+	public AvatarService getAvatarService() {
+		return this.mAvatarService;
+	}
+
+	public Message attachImageToConversation(final Conversation conversation,
+			final Uri uri, final UiCallback<Message> callback) {
+		final Message message;
+		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
+			message = new Message(conversation, "",
+					Message.ENCRYPTION_DECRYPTED);
+		} else {
+			message = new Message(conversation, "",
+					conversation.getNextEncryption(forceEncryption()));
+		}
+		message.setPresence(conversation.getNextPresence());
+		message.setType(Message.TYPE_IMAGE);
+		message.setStatus(Message.STATUS_OFFERED);
+		new Thread(new Runnable() {
+
+			@Override
+			public void run() {
+				try {
+					getFileBackend().copyImageToPrivateStorage(message, uri);
+					if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
+						getPgpEngine().encrypt(message, callback);
+					} else {
+						callback.success(message);
+					}
+				} catch (FileBackend.ImageCopyException e) {
+					callback.error(e.getResId(), message);
+				}
+			}
+		}).start();
+		return message;
+	}
+
+	public Conversation find(Bookmark bookmark) {
+		return find(bookmark.getAccount(), bookmark.getJid());
+	}
+
+	public Conversation find(Account account, String jid) {
+		return find(getConversations(), account, jid);
+	}
+
+	public class XmppConnectionBinder extends Binder {
+		public XmppConnectionService getService() {
+			return XmppConnectionService.this;
+		}
+	}
+
+	@Override
+	public int onStartCommand(Intent intent, int flags, int startId) {
+		if (intent != null && intent.getAction() != null) {
+			if (intent.getAction().equals(ACTION_MERGE_PHONE_CONTACTS)) {
+				mergePhoneContactsWithRoster();
+				return START_STICKY;
+			} else if (intent.getAction().equals(Intent.ACTION_SHUTDOWN)) {
+				logoutAndSave();
+				return START_NOT_STICKY;
+			} else if (intent.getAction().equals(ACTION_CLEAR_NOTIFICATION)) {
+				mNotificationService.clear();
+			}
+		}
+		this.wakeLock.acquire();
+
+		for (Account account : accounts) {
+			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
+				if (!hasInternetConnection()) {
+					account.setStatus(Account.STATUS_NO_INTERNET);
+					if (statusListener != null) {
+						statusListener.onStatusChanged(account);
+					}
+				} else {
+					if (account.getStatus() == Account.STATUS_NO_INTERNET) {
+						account.setStatus(Account.STATUS_OFFLINE);
+						if (statusListener != null) {
+							statusListener.onStatusChanged(account);
+						}
+					}
+					if (account.getStatus() == Account.STATUS_ONLINE) {
+						long lastReceived = account.getXmppConnection()
+								.getLastPacketReceived();
+						long lastSent = account.getXmppConnection()
+								.getLastPingSent();
+						if (lastSent - lastReceived >= Config.PING_TIMEOUT * 1000) {
+							Log.d(Config.LOGTAG, account.getJid()
+									+ ": ping timeout");
+							this.reconnectAccount(account, true);
+						} else if (SystemClock.elapsedRealtime() - lastReceived >= Config.PING_MIN_INTERVAL * 1000) {
+							account.getXmppConnection().sendPing();
+							this.scheduleWakeupCall(2, false);
+						}
+					} else if (account.getStatus() == Account.STATUS_OFFLINE) {
+						if (account.getXmppConnection() == null) {
+							account.setXmppConnection(this
+									.createConnection(account));
+						}
+						new Thread(account.getXmppConnection()).start();
+					} else if ((account.getStatus() == Account.STATUS_CONNECTING)
+							&& ((SystemClock.elapsedRealtime() - account
+									.getXmppConnection().getLastConnect()) / 1000 >= Config.CONNECT_TIMEOUT)) {
+						Log.d(Config.LOGTAG, account.getJid()
+								+ ": time out during connect reconnecting");
+						reconnectAccount(account, true);
+					} else {
+						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
+							reconnectAccount(account, true);
+						}
+					}
+					// in any case. reschedule wakup call
+					this.scheduleWakeupCall(Config.PING_MAX_INTERVAL, true);
+				}
+				if (mOnAccountUpdate != null) {
+					mOnAccountUpdate.onAccountUpdate();
+				}
+			}
+		}
+		if (wakeLock.isHeld()) {
+			try {
+				wakeLock.release();
+			} catch (RuntimeException re) {
+			}
+		}
+		return START_STICKY;
+	}
+
+	public boolean hasInternetConnection() {
+		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
+				.getSystemService(Context.CONNECTIVITY_SERVICE);
+		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
+		return activeNetwork != null && activeNetwork.isConnected();
+	}
+
+	@SuppressLint("TrulyRandom")
+	@Override
+	public void onCreate() {
+		ExceptionHelper.init(getApplicationContext());
+		PRNGFixes.apply();
+		this.mRandom = new SecureRandom();
+		this.mMemorizingTrustManager = new MemorizingTrustManager(
+				getApplicationContext());
+
+		int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
+		int cacheSize = maxMemory / 8;
+		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
+			@Override
+			protected int sizeOf(String key, Bitmap bitmap) {
+				return bitmap.getByteCount() / 1024;
+			}
+		};
+
+		this.databaseBackend = DatabaseBackend
+				.getInstance(getApplicationContext());
+		this.accounts = databaseBackend.getAccounts();
+
+		for (Account account : this.accounts) {
+			this.databaseBackend.readRoster(account.getRoster());
+		}
+		this.mergePhoneContactsWithRoster();
+		this.getConversations();
+
+		getContentResolver().registerContentObserver(
+				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
+		this.fileObserver.startWatching();
+		this.pgpServiceConnection = new OpenPgpServiceConnection(
+				getApplicationContext(), "org.sufficientlysecure.keychain");
+		this.pgpServiceConnection.bindToService();
+
+		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
+		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
+				"XmppConnectionService");
+	}
+
+	@Override
+	public void onDestroy() {
+		super.onDestroy();
+		this.logoutAndSave();
+	}
+
+	@Override
+	public void onTaskRemoved(Intent rootIntent) {
+		super.onTaskRemoved(rootIntent);
+		this.logoutAndSave();
+	}
+
+	private void logoutAndSave() {
+		for (Account account : accounts) {
+			databaseBackend.writeRoster(account.getRoster());
+			if (account.getXmppConnection() != null) {
+				disconnect(account, false);
+			}
+		}
+		Context context = getApplicationContext();
+		AlarmManager alarmManager = (AlarmManager) context
+				.getSystemService(Context.ALARM_SERVICE);
+		Intent intent = new Intent(context, EventReceiver.class);
+		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
+		Log.d(Config.LOGTAG, "good bye");
+		stopSelf();
+	}
+
+	protected void scheduleWakeupCall(int seconds, boolean ping) {
+		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
+		Context context = getApplicationContext();
+		AlarmManager alarmManager = (AlarmManager) context
+				.getSystemService(Context.ALARM_SERVICE);
+
+		if (ping) {
+			if (this.pingIntent == null) {
+				this.pingIntent = new Intent(context, EventReceiver.class);
+				this.pingIntent.setAction("ping");
+				this.pingIntent.putExtra("time", timeToWake);
+				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
+						this.pingIntent, 0);
+				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
+						timeToWake, pendingPingIntent);
+			} else {
+				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
+				if (scheduledTime < SystemClock.elapsedRealtime()
+						|| (scheduledTime > timeToWake)) {
+					this.pingIntent.putExtra("time", timeToWake);
+					alarmManager.cancel(this.pendingPingIntent);
+					this.pendingPingIntent = PendingIntent.getBroadcast(
+							context, 0, this.pingIntent, 0);
+					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
+							timeToWake, pendingPingIntent);
+				}
+			}
+		} else {
+			Intent intent = new Intent(context, EventReceiver.class);
+			intent.setAction("ping_check");
+			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
+					intent, 0);
+			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
+					alarmIntent);
+		}
+
+	}
+
+	public XmppConnection createConnection(Account account) {
+		SharedPreferences sharedPref = getPreferences();
+		account.setResource(sharedPref.getString("resource", "mobile")
+				.toLowerCase(Locale.getDefault()));
+		XmppConnection connection = new XmppConnection(account, this);
+		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
+		connection.setOnStatusChangedListener(this.statusListener);
+		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
+		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
+		connection.setOnJinglePacketReceivedListener(this.jingleListener);
+		connection.setOnBindListener(this.mOnBindListener);
+		connection
+				.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
+		return connection;
+	}
+
+	public void sendMessage(Message message) {
+		Account account = message.getConversation().getAccount();
+		account.deactivateGracePeriod();
+		Conversation conv = message.getConversation();
+		MessagePacket packet = null;
+		boolean saveInDb = true;
+		boolean send = false;
+		if (account.getStatus() == Account.STATUS_ONLINE
+				&& account.getXmppConnection() != null) {
+			if (message.getType() == Message.TYPE_IMAGE) {
+				if (message.getPresence() != null) {
+					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
+						if (!conv.hasValidOtrSession()
+								&& (message.getPresence() != null)) {
+							conv.startOtrSession(this, message.getPresence(),
+									true);
+							message.setStatus(Message.STATUS_WAITING);
+						} else if (conv.hasValidOtrSession()
+								&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
+							mJingleConnectionManager
+									.createNewConnection(message);
+						}
+					} else {
+						mJingleConnectionManager.createNewConnection(message);
+					}
+				} else {
+					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
+						conv.startOtrIfNeeded();
+					}
+					message.setStatus(Message.STATUS_WAITING);
+				}
+			} else {
+				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
+					if (!conv.hasValidOtrSession()
+							&& (message.getPresence() != null)) {
+						conv.startOtrSession(this, message.getPresence(), true);
+						message.setStatus(Message.STATUS_WAITING);
+					} else if (conv.hasValidOtrSession()
+							&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
+						message.setPresence(conv.getOtrSession().getSessionID()
+								.getUserID());
+						packet = mMessageGenerator.generateOtrChat(message);
+						send = true;
+
+					} else if (message.getPresence() == null) {
+						conv.startOtrIfNeeded();
+						message.setStatus(Message.STATUS_WAITING);
+					}
+				} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
+					message.getConversation().endOtrIfNeeded();
+					failWaitingOtrMessages(message.getConversation());
+					packet = mMessageGenerator.generatePgpChat(message);
+					send = true;
+				} else {
+					message.getConversation().endOtrIfNeeded();
+					failWaitingOtrMessages(message.getConversation());
+					packet = mMessageGenerator.generateChat(message);
+					send = true;
+				}
+			}
+			if (!account.getXmppConnection().getFeatures().sm()
+					&& conv.getMode() != Conversation.MODE_MULTI) {
+				message.setStatus(Message.STATUS_SEND);
+			}
+		} else {
+			message.setStatus(Message.STATUS_WAITING);
+			if (message.getType() == Message.TYPE_TEXT) {
+				if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
+					String pgpBody = message.getEncryptedBody();
+					String decryptedBody = message.getBody();
+					message.setBody(pgpBody);
+					message.setEncryption(Message.ENCRYPTION_PGP);
+					databaseBackend.createMessage(message);
+					saveInDb = false;
+					message.setBody(decryptedBody);
+					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
+				} else if (message.getEncryption() == Message.ENCRYPTION_OTR) {
+					if (conv.hasValidOtrSession()) {
+						message.setPresence(conv.getOtrSession().getSessionID()
+								.getUserID());
+					} else if (!conv.hasValidOtrSession()
+							&& message.getPresence() != null) {
+						conv.startOtrSession(this, message.getPresence(), false);
+					}
+				}
+			}
+
+		}
+		conv.add(message);
+		if (saveInDb) {
+			if (message.getEncryption() == Message.ENCRYPTION_NONE
+					|| saveEncryptedMessages()) {
+				databaseBackend.createMessage(message);
+			}
+		}
+		if ((send) && (packet != null)) {
+			sendMessagePacket(account, packet);
+		}
+		updateConversationUi();
+	}
+
+	private void sendUnsendMessages(Conversation conversation) {
+		for (int i = 0; i < conversation.getMessages().size(); ++i) {
+			int status = conversation.getMessages().get(i).getStatus();
+			if (status == Message.STATUS_WAITING) {
+				resendMessage(conversation.getMessages().get(i));
+			}
+		}
+	}
+
+	private void resendMessage(Message message) {
+		Account account = message.getConversation().getAccount();
+		MessagePacket packet = null;
+		if (message.getEncryption() == Message.ENCRYPTION_OTR) {
+			Presences presences = message.getConversation().getContact()
+					.getPresences();
+			if (!message.getConversation().hasValidOtrSession()) {
+				if ((message.getPresence() != null)
+						&& (presences.has(message.getPresence()))) {
+					message.getConversation().startOtrSession(this,
+							message.getPresence(), true);
+				} else {
+					if (presences.size() == 1) {
+						String presence = presences.asStringArray()[0];
+						message.getConversation().startOtrSession(this,
+								presence, true);
+					}
+				}
+			} else {
+				if (message.getConversation().getOtrSession()
+						.getSessionStatus() == SessionStatus.ENCRYPTED) {
+					if (message.getType() == Message.TYPE_TEXT) {
+						packet = mMessageGenerator.generateOtrChat(message,
+								true);
+					} else if (message.getType() == Message.TYPE_IMAGE) {
+						mJingleConnectionManager.createNewConnection(message);
+					}
+				}
+			}
+		} else if (message.getType() == Message.TYPE_TEXT) {
+			if (message.getEncryption() == Message.ENCRYPTION_NONE) {
+				packet = mMessageGenerator.generateChat(message, true);
+			} else if ((message.getEncryption() == Message.ENCRYPTION_DECRYPTED)
+					|| (message.getEncryption() == Message.ENCRYPTION_PGP)) {
+				packet = mMessageGenerator.generatePgpChat(message, true);
+			}
+		} else if (message.getType() == Message.TYPE_IMAGE) {
+			Presences presences = message.getConversation().getContact()
+					.getPresences();
+			if ((message.getPresence() != null)
+					&& (presences.has(message.getPresence()))) {
+				markMessage(message, Message.STATUS_OFFERED);
+				mJingleConnectionManager.createNewConnection(message);
+			} else {
+				if (presences.size() == 1) {
+					String presence = presences.asStringArray()[0];
+					message.setPresence(presence);
+					markMessage(message, Message.STATUS_OFFERED);
+					mJingleConnectionManager.createNewConnection(message);
+				}
+			}
+		}
+		if (packet != null) {
+			if (!account.getXmppConnection().getFeatures().sm()
+					&& message.getConversation().getMode() != Conversation.MODE_MULTI) {
+				markMessage(message, Message.STATUS_SEND);
+			} else {
+				markMessage(message, Message.STATUS_UNSEND);
+			}
+			sendMessagePacket(account, packet);
+		}
+	}
+
+	public void fetchRosterFromServer(Account account) {
+		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
+		if (!"".equals(account.getRosterVersion())) {
+			Log.d(Config.LOGTAG, account.getJid()
+					+ ": fetching roster version " + account.getRosterVersion());
+		} else {
+			Log.d(Config.LOGTAG, account.getJid() + ": fetching roster");
+		}
+		iqPacket.query("jabber:iq:roster").setAttribute("ver",
+				account.getRosterVersion());
+		account.getXmppConnection().sendIqPacket(iqPacket,
+				new OnIqPacketReceived() {
+
+					@Override
+					public void onIqPacketReceived(final Account account,
+							IqPacket packet) {
+						Element query = packet.findChild("query");
+						if (query != null) {
+							account.getRoster().markAllAsNotInRoster();
+							mIqParser.rosterItems(account, query);
+						}
+					}
+				});
+	}
+
+	public void fetchBookmarks(Account account) {
+		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
+		Element query = iqPacket.query("jabber:iq:private");
+		query.addChild("storage", "storage:bookmarks");
+		OnIqPacketReceived callback = new OnIqPacketReceived() {
+
+			@Override
+			public void onIqPacketReceived(Account account, IqPacket packet) {
+				Element query = packet.query();
+				List<Bookmark> bookmarks = new CopyOnWriteArrayList<Bookmark>();
+				Element storage = query.findChild("storage",
+						"storage:bookmarks");
+				if (storage != null) {
+					for (Element item : storage.getChildren()) {
+						if (item.getName().equals("conference")) {
+							Bookmark bookmark = Bookmark.parse(item, account);
+							bookmarks.add(bookmark);
+							Conversation conversation = find(bookmark);
+							if (conversation != null) {
+								conversation.setBookmark(bookmark);
+							} else {
+								if (bookmark.autojoin()) {
+									conversation = findOrCreateConversation(
+											account, bookmark.getJid(), true);
+									conversation.setBookmark(bookmark);
+									joinMuc(conversation);
+								}
+							}
+						}
+					}
+				}
+				account.setBookmarks(bookmarks);
+			}
+		};
+		sendIqPacket(account, iqPacket, callback);
+
+	}
+
+	public void pushBookmarks(Account account) {
+		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_SET);
+		Element query = iqPacket.query("jabber:iq:private");
+		Element storage = query.addChild("storage", "storage:bookmarks");
+		for (Bookmark bookmark : account.getBookmarks()) {
+			storage.addChild(bookmark);
+		}
+		sendIqPacket(account, iqPacket, null);
+	}
+
+	private void mergePhoneContactsWithRoster() {
+		PhoneHelper.loadPhoneContacts(getApplicationContext(),
+				new OnPhoneContactsLoadedListener() {
+					@Override
+					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
+						for (Account account : accounts) {
+							account.getRoster().clearSystemAccounts();
+						}
+						for (Bundle phoneContact : phoneContacts) {
+							for (Account account : accounts) {
+								String jid = phoneContact.getString("jid");
+								Contact contact = account.getRoster()
+										.getContact(jid);
+								String systemAccount = phoneContact
+										.getInt("phoneid")
+										+ "#"
+										+ phoneContact.getString("lookup");
+								contact.setSystemAccount(systemAccount);
+								contact.setPhotoUri(phoneContact
+										.getString("photouri"));
+								contact.setSystemName(phoneContact
+										.getString("displayname"));
+								getAvatarService().clear(contact);
+							}
+						}
+					}
+				});
+	}
+
+	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.setMessages(databaseBackend.getMessages(conv, 50));
+				checkDeletedFiles(conv);
+			}
+		}
+		return this.conversations;
+	}
+
+	private void checkDeletedFiles(Conversation conversation) {
+		for (Message message : conversation.getMessages()) {
+			if (message.getType() == Message.TYPE_IMAGE
+					&& message.getEncryption() != Message.ENCRYPTION_PGP) {
+				if (!getFileBackend().isFileAvailable(message)) {
+					message.setDownloadable(new DeletedDownloadable());
+				}
+			}
+		}
+	}
+
+	private void markFileDeleted(String uuid) {
+		for (Conversation conversation : getConversations()) {
+			for (Message message : conversation.getMessages()) {
+				if (message.getType() == Message.TYPE_IMAGE
+						&& message.getEncryption() != Message.ENCRYPTION_PGP
+						&& message.getUuid().equals(uuid)) {
+					if (!getFileBackend().isFileAvailable(message)) {
+						message.setDownloadable(new DeletedDownloadable());
+						updateConversationUi();
+					}
+					return;
+				}
+			}
+		}
+	}
+
+	public void populateWithOrderedConversations(List<Conversation> list) {
+		populateWithOrderedConversations(list, true);
+	}
+
+	public void populateWithOrderedConversations(List<Conversation> list,
+			boolean includeConferences) {
+		list.clear();
+		if (includeConferences) {
+			list.addAll(getConversations());
+		} else {
+			for (Conversation conversation : getConversations()) {
+				if (conversation.getMode() == Conversation.MODE_SINGLE) {
+					list.add(conversation);
+				}
+			}
+		}
+		Collections.sort(list, new Comparator<Conversation>() {
+			@Override
+			public int compare(Conversation lhs, Conversation rhs) {
+				Message left = lhs.getLatestMessage();
+				Message right = rhs.getLatestMessage();
+				if (left.getTimeSent() > right.getTimeSent()) {
+					return -1;
+				} else if (left.getTimeSent() < right.getTimeSent()) {
+					return 1;
+				} else {
+					return 0;
+				}
+			}
+		});
+	}
+
+	public int loadMoreMessages(Conversation conversation, long timestamp) {
+		List<Message> messages = databaseBackend.getMessages(conversation, 50,
+				timestamp);
+		for (Message message : messages) {
+			message.setConversation(conversation);
+		}
+		conversation.addAll(0, messages);
+		return messages.size();
+	}
+
+	public List<Account> getAccounts() {
+		return this.accounts;
+	}
+
+	public Conversation find(List<Conversation> haystack, Contact contact) {
+		for (Conversation conversation : haystack) {
+			if (conversation.getContact() == contact) {
+				return conversation;
+			}
+		}
+		return null;
+	}
+
+	public Conversation find(List<Conversation> haystack, Account account,
+			String jid) {
+		for (Conversation conversation : haystack) {
+			if ((account == null || conversation.getAccount() == account)
+					&& (conversation.getContactJid().split("/", 2)[0]
+							.equalsIgnoreCase(jid))) {
+				return conversation;
+			}
+		}
+		return null;
+	}
+
+	public Conversation findOrCreateConversation(Account account, String jid,
+			boolean muc) {
+		Conversation conversation = find(account, jid);
+		if (conversation != null) {
+			return conversation;
+		}
+		conversation = databaseBackend.findConversation(account, jid);
+		if (conversation != null) {
+			conversation.setStatus(Conversation.STATUS_AVAILABLE);
+			conversation.setAccount(account);
+			if (muc) {
+				conversation.setMode(Conversation.MODE_MULTI);
+			} else {
+				conversation.setMode(Conversation.MODE_SINGLE);
+			}
+			conversation.setMessages(databaseBackend.getMessages(conversation,
+					50));
+			this.databaseBackend.updateConversation(conversation);
+		} else {
+			String conversationName;
+			Contact contact = account.getRoster().getContact(jid);
+			if (contact != null) {
+				conversationName = contact.getDisplayName();
+			} else {
+				conversationName = jid.split("@")[0];
+			}
+			if (muc) {
+				conversation = new Conversation(conversationName, account, jid,
+						Conversation.MODE_MULTI);
+			} else {
+				conversation = new Conversation(conversationName, account, jid,
+						Conversation.MODE_SINGLE);
+			}
+			this.databaseBackend.createConversation(conversation);
+		}
+		this.conversations.add(conversation);
+		updateConversationUi();
+		return conversation;
+	}
+
+	public void archiveConversation(Conversation conversation) {
+		if (conversation.getMode() == Conversation.MODE_MULTI) {
+			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
+				Bookmark bookmark = conversation.getBookmark();
+				if (bookmark != null && bookmark.autojoin()) {
+					bookmark.setAutojoin(false);
+					pushBookmarks(bookmark.getAccount());
+				}
+			}
+			leaveMuc(conversation);
+		} else {
+			conversation.endOtrIfNeeded();
+		}
+		this.databaseBackend.updateConversation(conversation);
+		this.conversations.remove(conversation);
+		updateConversationUi();
+	}
+
+	public void clearConversationHistory(Conversation conversation) {
+		this.databaseBackend.deleteMessagesInConversation(conversation);
+		conversation.getMessages().clear();
+		updateConversationUi();
+	}
+
+	public int getConversationCount() {
+		return this.databaseBackend.getConversationCount();
+	}
+
+	public void createAccount(Account account) {
+		databaseBackend.createAccount(account);
+		this.accounts.add(account);
+		this.reconnectAccount(account, false);
+		updateAccountUi();
+	}
+
+	public void updateAccount(Account account) {
+		this.statusListener.onStatusChanged(account);
+		databaseBackend.updateAccount(account);
+		reconnectAccount(account, false);
+		updateAccountUi();
+		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
+	}
+
+	public void deleteAccount(Account account) {
+		for (Conversation conversation : conversations) {
+			if (conversation.getAccount() == account) {
+				if (conversation.getMode() == Conversation.MODE_MULTI) {
+					leaveMuc(conversation);
+				} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
+					conversation.endOtrIfNeeded();
+				}
+				conversations.remove(conversation);
+			}
+		}
+		if (account.getXmppConnection() != null) {
+			this.disconnect(account, true);
+		}
+		databaseBackend.deleteAccount(account);
+		this.accounts.remove(account);
+		updateAccountUi();
+		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
+	}
+
+	public void setOnConversationListChangedListener(
+			OnConversationUpdate listener) {
+		if (!isScreenOn()) {
+			Log.d(Config.LOGTAG,
+					"ignoring setOnConversationListChangedListener");
+			return;
+		}
+		synchronized (this.convChangedListenerCount) {
+			if (checkListeners()) {
+				switchToForeground();
+			}
+			this.mOnConversationUpdate = listener;
+			this.mNotificationService.setIsInForeground(true);
+			this.convChangedListenerCount++;
+		}
+	}
+
+	public void removeOnConversationListChangedListener() {
+		synchronized (this.convChangedListenerCount) {
+			this.convChangedListenerCount--;
+			if (this.convChangedListenerCount <= 0) {
+				this.convChangedListenerCount = 0;
+				this.mOnConversationUpdate = null;
+				this.mNotificationService.setIsInForeground(false);
+				if (checkListeners()) {
+					switchToBackground();
+				}
+			}
+		}
+	}
+
+	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
+		if (!isScreenOn()) {
+			Log.d(Config.LOGTAG, "ignoring setOnAccountListChangedListener");
+			return;
+		}
+		synchronized (this.accountChangedListenerCount) {
+			if (checkListeners()) {
+				switchToForeground();
+			}
+			this.mOnAccountUpdate = listener;
+			this.accountChangedListenerCount++;
+		}
+	}
+
+	public void removeOnAccountListChangedListener() {
+		synchronized (this.accountChangedListenerCount) {
+			this.accountChangedListenerCount--;
+			if (this.accountChangedListenerCount <= 0) {
+				this.mOnAccountUpdate = null;
+				this.accountChangedListenerCount = 0;
+				if (checkListeners()) {
+					switchToBackground();
+				}
+			}
+		}
+	}
+
+	public void setOnRosterUpdateListener(OnRosterUpdate listener) {
+		if (!isScreenOn()) {
+			Log.d(Config.LOGTAG, "ignoring setOnRosterUpdateListener");
+			return;
+		}
+		synchronized (this.rosterChangedListenerCount) {
+			if (checkListeners()) {
+				switchToForeground();
+			}
+			this.mOnRosterUpdate = listener;
+			this.rosterChangedListenerCount++;
+		}
+	}
+
+	public void removeOnRosterUpdateListener() {
+		synchronized (this.rosterChangedListenerCount) {
+			this.rosterChangedListenerCount--;
+			if (this.rosterChangedListenerCount <= 0) {
+				this.rosterChangedListenerCount = 0;
+				this.mOnRosterUpdate = null;
+				if (checkListeners()) {
+					switchToBackground();
+				}
+			}
+		}
+	}
+
+	private boolean checkListeners() {
+		return (this.mOnAccountUpdate == null
+				&& this.mOnConversationUpdate == null && this.mOnRosterUpdate == null);
+	}
+
+	private void switchToForeground() {
+		for (Account account : getAccounts()) {
+			if (account.getStatus() == Account.STATUS_ONLINE) {
+				XmppConnection connection = account.getXmppConnection();
+				if (connection != null && connection.getFeatures().csi()) {
+					connection.sendActive();
+				}
+			}
+		}
+		Log.d(Config.LOGTAG, "app switched into foreground");
+	}
+
+	private void switchToBackground() {
+		for (Account account : getAccounts()) {
+			if (account.getStatus() == Account.STATUS_ONLINE) {
+				XmppConnection connection = account.getXmppConnection();
+				if (connection != null && connection.getFeatures().csi()) {
+					connection.sendInactive();
+				}
+			}
+		}
+		this.mNotificationService.setIsInForeground(false);
+		Log.d(Config.LOGTAG, "app switched into background");
+	}
+
+	private boolean isScreenOn() {
+		PowerManager pm = (PowerManager) this
+				.getSystemService(Context.POWER_SERVICE);
+		return pm.isScreenOn();
+	}
+
+	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) {
+		Account account = conversation.getAccount();
+		account.pendingConferenceJoins.remove(conversation);
+		account.pendingConferenceLeaves.remove(conversation);
+		if (account.getStatus() == Account.STATUS_ONLINE) {
+			Log.d(Config.LOGTAG,
+					"joining conversation " + conversation.getContactJid());
+			String nick = conversation.getMucOptions().getProposedNick();
+			conversation.getMucOptions().setJoinNick(nick);
+			PresencePacket packet = new PresencePacket();
+			String joinJid = conversation.getMucOptions().getJoinJid();
+			packet.setAttribute("to", conversation.getMucOptions().getJoinJid());
+			Element x = new Element("x");
+			x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
+			if (conversation.getMucOptions().getPassword() != null) {
+				Element password = x.addChild("password");
+				password.setContent(conversation.getMucOptions().getPassword());
+			}
+			String sig = account.getPgpSignature();
+			if (sig != null) {
+				packet.addChild("status").setContent("online");
+				packet.addChild("x", "jabber:x:signed").setContent(sig);
+			}
+			if (conversation.getMessages().size() != 0) {
+				final SimpleDateFormat mDateFormat = new SimpleDateFormat(
+						"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
+				mDateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+				Date date = new Date(conversation.getLatestMessage()
+						.getTimeSent() + 1000);
+				x.addChild("history").setAttribute("since",
+						mDateFormat.format(date));
+			}
+			packet.addChild(x);
+			sendPresencePacket(account, packet);
+			if (!joinJid.equals(conversation.getContactJid())) {
+				conversation.setContactJid(joinJid);
+				databaseBackend.updateConversation(conversation);
+			}
+		} else {
+			account.pendingConferenceJoins.add(conversation);
+		}
+	}
+
+	private OnRenameListener renameListener = null;
+	private IqGenerator mIqGenerator = new IqGenerator(this);
+
+	public void setOnRenameListener(OnRenameListener listener) {
+		this.renameListener = listener;
+	}
+
+	public void providePasswordForMuc(Conversation conversation, String password) {
+		if (conversation.getMode() == Conversation.MODE_MULTI) {
+			conversation.getMucOptions().setPassword(password);
+			if (conversation.getBookmark() != null) {
+				conversation.getBookmark().setAutojoin(true);
+				pushBookmarks(conversation.getAccount());
+			}
+			databaseBackend.updateConversation(conversation);
+			joinMuc(conversation);
+		}
+	}
+
+	public void renameInMuc(final Conversation conversation, final String nick) {
+		final MucOptions options = conversation.getMucOptions();
+		options.setJoinNick(nick);
+		if (options.online()) {
+			Account account = conversation.getAccount();
+			options.setOnRenameListener(new OnRenameListener() {
+
+				@Override
+				public void onRename(boolean success) {
+					if (renameListener != null) {
+						renameListener.onRename(success);
+					}
+					if (success) {
+						conversation.setContactJid(conversation.getMucOptions()
+								.getJoinJid());
+						databaseBackend.updateConversation(conversation);
+						Bookmark bookmark = conversation.getBookmark();
+						if (bookmark != null) {
+							bookmark.setNick(nick);
+							pushBookmarks(bookmark.getAccount());
+						}
+					}
+				}
+			});
+			options.flagAboutToRename();
+			PresencePacket packet = new PresencePacket();
+			packet.setAttribute("to", options.getJoinJid());
+			packet.setAttribute("from", conversation.getAccount().getFullJid());
+
+			String sig = account.getPgpSignature();
+			if (sig != null) {
+				packet.addChild("status").setContent("online");
+				packet.addChild("x", "jabber:x:signed").setContent(sig);
+			}
+			sendPresencePacket(account, packet);
+		} else {
+			conversation.setContactJid(options.getJoinJid());
+			databaseBackend.updateConversation(conversation);
+			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
+				Bookmark bookmark = conversation.getBookmark();
+				if (bookmark != null) {
+					bookmark.setNick(nick);
+					pushBookmarks(bookmark.getAccount());
+				}
+				joinMuc(conversation);
+			}
+		}
+	}
+
+	public void leaveMuc(Conversation conversation) {
+		Account account = conversation.getAccount();
+		account.pendingConferenceJoins.remove(conversation);
+		account.pendingConferenceLeaves.remove(conversation);
+		if (account.getStatus() == Account.STATUS_ONLINE) {
+			PresencePacket packet = new PresencePacket();
+			packet.setAttribute("to", conversation.getMucOptions().getJoinJid());
+			packet.setAttribute("from", conversation.getAccount().getFullJid());
+			packet.setAttribute("type", "unavailable");
+			sendPresencePacket(conversation.getAccount(), packet);
+			conversation.getMucOptions().setOffline();
+			conversation.deregisterWithBookmark();
+			Log.d(Config.LOGTAG, conversation.getAccount().getJid()
+					+ ": leaving muc " + conversation.getContactJid());
+		} else {
+			account.pendingConferenceLeaves.add(conversation);
+		}
+	}
+
+	public void disconnect(Account account, boolean force) {
+		if ((account.getStatus() == Account.STATUS_ONLINE)
+				|| (account.getStatus() == Account.STATUS_DISABLED)) {
+			if (!force) {
+				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 {
+							if (conversation.endOtrIfNeeded()) {
+								Log.d(Config.LOGTAG, account.getJid()
+										+ ": ended otr session with "
+										+ conversation.getContactJid());
+							}
+						}
+					}
+				}
+			}
+			account.getXmppConnection().disconnect(force);
+		}
+	}
+
+	@Override
+	public IBinder onBind(Intent intent) {
+		return mBinder;
+	}
+
+	public void updateMessage(Message message) {
+		databaseBackend.updateMessage(message);
+		updateConversationUi();
+	}
+
+	protected void syncDirtyContacts(Account account) {
+		for (Contact contact : account.getRoster().getContacts()) {
+			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
+				pushContactToServer(contact);
+			}
+			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
+				deleteContactOnServer(contact);
+			}
+		}
+	}
+
+	public void createContact(Contact contact) {
+		SharedPreferences sharedPref = getPreferences();
+		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
+		if (autoGrant) {
+			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
+			contact.setOption(Contact.Options.ASKING);
+		}
+		pushContactToServer(contact);
+	}
+
+	public void onOtrSessionEstablished(Conversation conversation) {
+		Account account = conversation.getAccount();
+		List<Message> messages = conversation.getMessages();
+		Session otrSession = conversation.getOtrSession();
+		Log.d(Config.LOGTAG,
+				account.getJid() + " otr session established with "
+						+ conversation.getContactJid() + "/"
+						+ otrSession.getSessionID().getUserID());
+		for (int i = 0; i < messages.size(); ++i) {
+			Message msg = messages.get(i);
+			if ((msg.getStatus() == Message.STATUS_UNSEND || msg.getStatus() == Message.STATUS_WAITING)
+					&& (msg.getEncryption() == Message.ENCRYPTION_OTR)) {
+				msg.setPresence(otrSession.getSessionID().getUserID());
+				if (msg.getType() == Message.TYPE_TEXT) {
+					MessagePacket outPacket = mMessageGenerator
+							.generateOtrChat(msg, true);
+					if (outPacket != null) {
+						msg.setStatus(Message.STATUS_SEND);
+						databaseBackend.updateMessage(msg);
+						sendMessagePacket(account, outPacket);
+					}
+				} else if (msg.getType() == Message.TYPE_IMAGE) {
+					mJingleConnectionManager.createNewConnection(msg);
+				}
+			}
+		}
+		updateConversationUi();
+	}
+
+	public boolean renewSymmetricKey(Conversation conversation) {
+		Account account = conversation.getAccount();
+		byte[] symmetricKey = new byte[32];
+		this.mRandom.nextBytes(symmetricKey);
+		Session otrSession = conversation.getOtrSession();
+		if (otrSession != null) {
+			MessagePacket packet = new MessagePacket();
+			packet.setType(MessagePacket.TYPE_CHAT);
+			packet.setFrom(account.getFullJid());
+			packet.addChild("private", "urn:xmpp:carbons:2");
+			packet.addChild("no-copy", "urn:xmpp:hints");
+			packet.setTo(otrSession.getSessionID().getAccountID() + "/"
+					+ otrSession.getSessionID().getUserID());
+			try {
+				packet.setBody(otrSession
+						.transformSending(CryptoHelper.FILETRANSFER
+								+ CryptoHelper.bytesToHex(symmetricKey)));
+				sendMessagePacket(account, packet);
+				conversation.setSymmetricKey(symmetricKey);
+				return true;
+			} catch (OtrException e) {
+				return false;
+			}
+		}
+		return false;
+	}
+
+	public void pushContactToServer(Contact contact) {
+		contact.resetOption(Contact.Options.DIRTY_DELETE);
+		contact.setOption(Contact.Options.DIRTY_PUSH);
+		Account account = contact.getAccount();
+		if (account.getStatus() == Account.STATUS_ONLINE) {
+			boolean ask = contact.getOption(Contact.Options.ASKING);
+			boolean sendUpdates = contact
+					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
+					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
+			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
+			iq.query("jabber:iq:roster").addChild(contact.asElement());
+			account.getXmppConnection().sendIqPacket(iq, null);
+			if (sendUpdates) {
+				sendPresencePacket(account,
+						mPresenceGenerator.sendPresenceUpdatesTo(contact));
+			}
+			if (ask) {
+				sendPresencePacket(account,
+						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
+			}
+		}
+	}
+
+	public void publishAvatar(Account account, Uri image,
+			final UiCallback<Avatar> callback) {
+		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
+		final int size = Config.AVATAR_SIZE;
+		final Avatar avatar = getFileBackend()
+				.getPepAvatar(image, size, format);
+		if (avatar != null) {
+			avatar.height = size;
+			avatar.width = size;
+			if (format.equals(Bitmap.CompressFormat.WEBP)) {
+				avatar.type = "image/webp";
+			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
+				avatar.type = "image/jpeg";
+			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
+				avatar.type = "image/png";
+			}
+			if (!getFileBackend().save(avatar)) {
+				callback.error(R.string.error_saving_avatar, avatar);
+				return;
+			}
+			IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
+			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
+
+				@Override
+				public void onIqPacketReceived(Account account, IqPacket result) {
+					if (result.getType() == IqPacket.TYPE_RESULT) {
+						IqPacket packet = XmppConnectionService.this.mIqGenerator
+								.publishAvatarMetadata(avatar);
+						sendIqPacket(account, packet, new OnIqPacketReceived() {
+
+							@Override
+							public void onIqPacketReceived(Account account,
+									IqPacket result) {
+								if (result.getType() == IqPacket.TYPE_RESULT) {
+									if (account.setAvatar(avatar.getFilename())) {
+										databaseBackend.updateAccount(account);
+									}
+									callback.success(avatar);
+								} else {
+									callback.error(
+											R.string.error_publish_avatar_server_reject,
+											avatar);
+								}
+							}
+						});
+					} else {
+						callback.error(
+								R.string.error_publish_avatar_server_reject,
+								avatar);
+					}
+				}
+			});
+		} else {
+			callback.error(R.string.error_publish_avatar_converting, null);
+		}
+	}
+
+	public void fetchAvatar(Account account, Avatar avatar) {
+		fetchAvatar(account, avatar, null);
+	}
+
+	public void fetchAvatar(Account account, final Avatar avatar,
+			final UiCallback<Avatar> callback) {
+		IqPacket packet = this.mIqGenerator.retrieveAvatar(avatar);
+		sendIqPacket(account, packet, new OnIqPacketReceived() {
+
+			@Override
+			public void onIqPacketReceived(Account account, IqPacket result) {
+				final String ERROR = account.getJid()
+						+ ": fetching avatar for " + avatar.owner + " failed ";
+				if (result.getType() == IqPacket.TYPE_RESULT) {
+					avatar.image = mIqParser.avatarData(result);
+					if (avatar.image != null) {
+						if (getFileBackend().save(avatar)) {
+							if (account.getJid().equals(avatar.owner)) {
+								if (account.setAvatar(avatar.getFilename())) {
+									databaseBackend.updateAccount(account);
+								}
+								getAvatarService().clear(account);
+								updateConversationUi();
+								updateAccountUi();
+							} else {
+								Contact contact = account.getRoster()
+										.getContact(avatar.owner);
+								contact.setAvatar(avatar.getFilename());
+								getAvatarService().clear(contact);
+								updateConversationUi();
+								updateRosterUi();
+							}
+							if (callback != null) {
+								callback.success(avatar);
+							}
+							Log.d(Config.LOGTAG, account.getJid()
+									+ ": succesfully fetched avatar for "
+									+ avatar.owner);
+							return;
+						}
+					} else {
+
+						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
+					}
+				} else {
+					Element error = result.findChild("error");
+					if (error == null) {
+						Log.d(Config.LOGTAG, ERROR + "(server error)");
+					} else {
+						Log.d(Config.LOGTAG, ERROR + error.toString());
+					}
+				}
+				if (callback != null) {
+					callback.error(0, null);
+				}
+
+			}
+		});
+	}
+
+	public void checkForAvatar(Account account,
+			final UiCallback<Avatar> callback) {
+		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
+		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
+
+			@Override
+			public void onIqPacketReceived(Account account, IqPacket packet) {
+				if (packet.getType() == IqPacket.TYPE_RESULT) {
+					Element pubsub = packet.findChild("pubsub",
+							"http://jabber.org/protocol/pubsub");
+					if (pubsub != null) {
+						Element items = pubsub.findChild("items");
+						if (items != null) {
+							Avatar avatar = Avatar.parseMetadata(items);
+							if (avatar != null) {
+								avatar.owner = account.getJid();
+								if (fileBackend.isAvatarCached(avatar)) {
+									if (account.setAvatar(avatar.getFilename())) {
+										databaseBackend.updateAccount(account);
+									}
+									getAvatarService().clear(account);
+									callback.success(avatar);
+								} else {
+									fetchAvatar(account, avatar, callback);
+								}
+								return;
+							}
+						}
+					}
+				}
+				callback.error(0, null);
+			}
+		});
+	}
+
+	public void deleteContactOnServer(Contact contact) {
+		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
+		contact.resetOption(Contact.Options.DIRTY_PUSH);
+		contact.setOption(Contact.Options.DIRTY_DELETE);
+		Account account = contact.getAccount();
+		if (account.getStatus() == Account.STATUS_ONLINE) {
+			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
+			Element item = iq.query("jabber:iq:roster").addChild("item");
+			item.setAttribute("jid", contact.getJid());
+			item.setAttribute("subscription", "remove");
+			account.getXmppConnection().sendIqPacket(iq, null);
+		}
+	}
+
+	public void updateConversation(Conversation conversation) {
+		this.databaseBackend.updateConversation(conversation);
+	}
+
+	public void reconnectAccount(final Account account, final boolean force) {
+		new Thread(new Runnable() {
+
+			@Override
+			public void run() {
+				if (account.getXmppConnection() != null) {
+					disconnect(account, force);
+				}
+				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
+					if (account.getXmppConnection() == null) {
+						account.setXmppConnection(createConnection(account));
+					}
+					Thread thread = new Thread(account.getXmppConnection());
+					thread.start();
+					scheduleWakeupCall((int) (Config.CONNECT_TIMEOUT * 1.2),
+							false);
+				} else {
+					account.getRoster().clearPresences();
+					account.setXmppConnection(null);
+				}
+			}
+		}).start();
+	}
+
+	public void invite(Conversation conversation, String contact) {
+		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
+		sendMessagePacket(conversation.getAccount(), packet);
+	}
+
+	public void resetSendingToWaiting(Account account) {
+		for (Conversation conversation : getConversations()) {
+			if (conversation.getAccount() == account) {
+				for (Message message : conversation.getMessages()) {
+					if (message.getType() != Message.TYPE_IMAGE
+							&& message.getStatus() == Message.STATUS_UNSEND) {
+						markMessage(message, Message.STATUS_WAITING);
+					}
+				}
+			}
+		}
+	}
+
+	public boolean markMessage(Account account, String recipient, String uuid,
+			int status) {
+		if (uuid == null) {
+			return false;
+		} else {
+			for (Conversation conversation : getConversations()) {
+				if (conversation.getContactJid().equals(recipient)
+						&& conversation.getAccount().equals(account)) {
+					return markMessage(conversation, uuid, status);
+				}
+			}
+			return false;
+		}
+	}
+
+	public boolean markMessage(Conversation conversation, String uuid,
+			int status) {
+		if (uuid == null) {
+			return false;
+		} else {
+			for (Message message : conversation.getMessages()) {
+				if (uuid.equals(message.getUuid())
+						|| (message.getStatus() >= Message.STATUS_SEND && uuid
+								.equals(message.getRemoteMsgId()))) {
+					markMessage(message, status);
+					return true;
+				}
+			}
+			return false;
+		}
+	}
+
+	public void markMessage(Message message, int status) {
+		if (status == Message.STATUS_SEND_FAILED
+				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
+						.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
+			return;
+		}
+		message.setStatus(status);
+		databaseBackend.updateMessage(message);
+		updateConversationUi();
+	}
+
+	public SharedPreferences getPreferences() {
+		return PreferenceManager
+				.getDefaultSharedPreferences(getApplicationContext());
+	}
+
+	public boolean forceEncryption() {
+		return getPreferences().getBoolean("force_encryption", false);
+	}
+
+	public boolean confirmMessages() {
+		return getPreferences().getBoolean("confirm_messages", true);
+	}
+
+	public boolean saveEncryptedMessages() {
+		return !getPreferences().getBoolean("dont_save_encrypted", false);
+	}
+
+	public boolean indicateReceived() {
+		return getPreferences().getBoolean("indicate_received", false);
+	}
+
+	public void updateConversationUi() {
+		if (mOnConversationUpdate != null) {
+			mOnConversationUpdate.onConversationUpdate();
+		}
+	}
+
+	public void updateAccountUi() {
+		if (mOnAccountUpdate != null) {
+			mOnAccountUpdate.onAccountUpdate();
+		}
+	}
+
+	public void updateRosterUi() {
+		if (mOnRosterUpdate != null) {
+			mOnRosterUpdate.onRosterUpdate();
+		}
+	}
+
+	public Account findAccountByJid(String accountJid) {
+		for (Account account : this.accounts) {
+			if (account.getJid().equals(accountJid)) {
+				return account;
+			}
+		}
+		return null;
+	}
+
+	public Conversation findConversationByUuid(String uuid) {
+		for (Conversation conversation : getConversations()) {
+			if (conversation.getUuid().equals(uuid)) {
+				return conversation;
+			}
+		}
+		return null;
+	}
+
+	public void markRead(Conversation conversation, boolean calledByUi) {
+		mNotificationService.clear(conversation);
+		String id = conversation.getLatestMarkableMessageId();
+		conversation.markRead();
+		if (confirmMessages() && id != null && calledByUi) {
+			Log.d(Config.LOGTAG, conversation.getAccount().getJid()
+					+ ": sending read marker for " + conversation.getName());
+			Account account = conversation.getAccount();
+			String to = conversation.getContactJid();
+			this.sendMessagePacket(conversation.getAccount(),
+					mMessageGenerator.confirm(account, to, id));
+		}
+		if (!calledByUi) {
+			updateConversationUi();
+		}
+	}
+
+	public void failWaitingOtrMessages(Conversation conversation) {
+		for (Message message : conversation.getMessages()) {
+			if (message.getEncryption() == Message.ENCRYPTION_OTR
+					&& message.getStatus() == Message.STATUS_WAITING) {
+				markMessage(message, Message.STATUS_SEND_FAILED);
+			}
+		}
+	}
+
+	public SecureRandom getRNG() {
+		return this.mRandom;
+	}
+
+	public MemorizingTrustManager getMemorizingTrustManager() {
+		return this.mMemorizingTrustManager;
+	}
+
+	public PowerManager getPowerManager() {
+		return this.pm;
+	}
+
+	public LruCache<String, Bitmap> getBitmapCache() {
+		return this.mBitmapCache;
+	}
+
+	public void replyWithNotAcceptable(Account account, MessagePacket packet) {
+		if (account.getStatus() == Account.STATUS_ONLINE) {
+			MessagePacket error = this.mMessageGenerator
+					.generateNotAcceptable(packet);
+			sendMessagePacket(account, error);
+		}
+	}
+
+	public void syncRosterToDisk(final Account account) {
+		new Thread(new Runnable() {
+
+			@Override
+			public void run() {
+				databaseBackend.writeRoster(account.getRoster());
+			}
+		}).start();
+
+	}
+
+	public List<String> getKnownHosts() {
+		List<String> hosts = new ArrayList<String>();
+		for (Account account : getAccounts()) {
+			if (!hosts.contains(account.getServer())) {
+				hosts.add(account.getServer());
+			}
+			for (Contact contact : account.getRoster().getContacts()) {
+				if (contact.showInRoster()) {
+					String server = contact.getServer();
+					if (server != null && !hosts.contains(server)) {
+						hosts.add(server);
+					}
+				}
+			}
+		}
+		return hosts;
+	}
+
+	public List<String> getKnownConferenceHosts() {
+		ArrayList<String> mucServers = new ArrayList<String>();
+		for (Account account : accounts) {
+			if (account.getXmppConnection() != null) {
+				String server = account.getXmppConnection().getMucServer();
+				if (server != null && !mucServers.contains(server)) {
+					mucServers.add(server);
+				}
+			}
+		}
+		return mucServers;
+	}
+
+	public void sendMessagePacket(Account account, MessagePacket packet) {
+		XmppConnection connection = account.getXmppConnection();
+		if (connection != null) {
+			connection.sendMessagePacket(packet);
+		}
+	}
+
+	public void sendPresencePacket(Account account, PresencePacket packet) {
+		XmppConnection connection = account.getXmppConnection();
+		if (connection != null) {
+			connection.sendPresencePacket(packet);
+		}
+	}
+
+	public void sendIqPacket(Account account, IqPacket packet,
+			OnIqPacketReceived callback) {
+		XmppConnection connection = account.getXmppConnection();
+		if (connection != null) {
+			connection.sendIqPacket(packet, callback);
+		}
+	}
+
+	public MessageGenerator getMessageGenerator() {
+		return this.mMessageGenerator;
+	}
+
+	public PresenceGenerator getPresenceGenerator() {
+		return this.mPresenceGenerator;
+	}
+
+	public IqGenerator getIqGenerator() {
+		return this.mIqGenerator;
+	}
+
+	public JingleConnectionManager getJingleConnectionManager() {
+		return this.mJingleConnectionManager;
+	}
+
+	public interface OnConversationUpdate {
+		public void onConversationUpdate();
+	}
+
+	public interface OnAccountUpdate {
+		public void onAccountUpdate();
+	}
+
+	public interface OnRosterUpdate {
+		public void onRosterUpdate();
+	}
+
+	public List<Contact> findContacts(String jid) {
+		ArrayList<Contact> contacts = new ArrayList<Contact>();
+		for (Account account : getAccounts()) {
+			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
+				Contact contact = account.getRoster().getContactFromRoster(jid);
+				if (contact != null) {
+					contacts.add(contact);
+				}
+			}
+		}
+		return contacts;
+	}
+
+	public NotificationService getNotificationService() {
+		return this.mNotificationService;
+	}
+
+	public HttpConnectionManager getHttpConnectionManager() {
+		return this.mHttpConnectionManager;
+	}
+
+	private class DeletedDownloadable implements Downloadable {
+
+		@Override
+		public boolean start() {
+			return false;
+		}
+
+		@Override
+		public int getStatus() {
+			return Downloadable.STATUS_DELETED;
+		}
+
+		@Override
+		public long getFileSize() {
+			return 0;
+		}
+
+	}
+
+	public void resendFailedMessages(Message message) {
+		List<Message> messages = new ArrayList<Message>();
+		Message current = message;
+		while(current.getStatus() == Message.STATUS_SEND_FAILED) {
+			messages.add(current);
+			if (current.mergable(current.next())) {
+				current = current.next();
+			} else {
+				break;
+			}
+		}
+		for(Message msg: messages) {
+			markMessage(msg, Message.STATUS_WAITING);
+			this.resendMessage(msg);
+		}
+	}
+}