Merge branch 'development'1.4.4

60 files changed, 757 insertions, 800 deletions

diff --git a/src/main/java/eu/siacs/conversations/crypto/OtrEngine.java b/src/main/java/eu/siacs/conversations/crypto/OtrService.java
index 0dc7c37e..1e905bac 100644
--- a/src/main/java/eu/siacs/conversations/crypto/OtrEngine.java
+++ b/src/main/java/eu/siacs/conversations/crypto/OtrService.java
@@ -36,14 +36,14 @@ import net.java.otr4j.session.InstanceTag;
 import net.java.otr4j.session.SessionID;
 import net.java.otr4j.session.FragmenterInstructions;
 
-public class OtrEngine extends OtrCryptoEngineImpl implements OtrEngineHost {
+public class OtrService extends OtrCryptoEngineImpl implements OtrEngineHost {
 
 	private Account account;
 	private OtrPolicy otrPolicy;
 	private KeyPair keyPair;
 	private XmppConnectionService mXmppConnectionService;
 
-	public OtrEngine(XmppConnectionService service, Account account) {
+	public OtrService(XmppConnectionService service, Account account) {
 		this.account = account;
 		this.otrPolicy = new OtrPolicyImpl();
 		this.otrPolicy.setAllowV1(false);
@@ -285,7 +285,7 @@ public class OtrEngine extends OtrCryptoEngineImpl implements OtrEngineHost {
 
 	@Override
 	public void verify(SessionID id, String fingerprint, boolean approved) {
-		Log.d(Config.LOGTAG,"OtrEngine.verify("+id.toString()+","+fingerprint+","+String.valueOf(approved)+")");
+		Log.d(Config.LOGTAG,"OtrService.verify("+id.toString()+","+fingerprint+","+String.valueOf(approved)+")");
 		try {
 			final Jid jid = Jid.fromSessionID(id);
 			Conversation conversation = this.mXmppConnectionService.find(this.account,jid);
diff --git a/src/main/java/eu/siacs/conversations/entities/Account.java b/src/main/java/eu/siacs/conversations/entities/Account.java
index fe103094..6e6dcb6a 100644
--- a/src/main/java/eu/siacs/conversations/entities/Account.java
+++ b/src/main/java/eu/siacs/conversations/entities/Account.java
@@ -19,7 +19,7 @@ import java.util.concurrent.CopyOnWriteArraySet;
 
 import eu.siacs.conversations.Config;
 import eu.siacs.conversations.R;
-import eu.siacs.conversations.crypto.OtrEngine;
+import eu.siacs.conversations.crypto.OtrService;
 import eu.siacs.conversations.services.XmppConnectionService;
 import eu.siacs.conversations.xmpp.XmppConnection;
 import eu.siacs.conversations.xmpp.jid.InvalidJidException;
@@ -117,7 +117,7 @@ public class Account extends AbstractEntity {
 	protected JSONObject keys = new JSONObject();
 	protected String avatar;
 	protected boolean online = false;
-	private OtrEngine otrEngine = null;
+	private OtrService mOtrService = null;
 	private XmppConnection xmppConnection = null;
 	private long mEndGracePeriod = 0L;
 	private String otrFingerprint;
@@ -273,12 +273,12 @@ public class Account extends AbstractEntity {
 		return values;
 	}
 
-	public void initOtrEngine(final XmppConnectionService context) {
-		this.otrEngine = new OtrEngine(context, this);
+	public void initAccountServices(final XmppConnectionService context) {
+		this.mOtrService = new OtrService(context, this);
 	}
 
-	public OtrEngine getOtrEngine() {
-		return this.otrEngine;
+	public OtrService getOtrService() {
+		return this.mOtrService;
 	}
 
 	public XmppConnection getXmppConnection() {
@@ -292,10 +292,10 @@ public class Account extends AbstractEntity {
 	public String getOtrFingerprint() {
 		if (this.otrFingerprint == null) {
 			try {
-				if (this.otrEngine == null) {
+				if (this.mOtrService == null) {
 					return null;
 				}
-				final PublicKey publicKey = this.otrEngine.getPublicKey();
+				final PublicKey publicKey = this.mOtrService.getPublicKey();
 				if (publicKey == null || !(publicKey instanceof DSAPublicKey)) {
 					return null;
 				}
diff --git a/src/main/java/eu/siacs/conversations/entities/Bookmark.java b/src/main/java/eu/siacs/conversations/entities/Bookmark.java
index f81f1a87..cc6f146b 100644
--- a/src/main/java/eu/siacs/conversations/entities/Bookmark.java
+++ b/src/main/java/eu/siacs/conversations/entities/Bookmark.java
@@ -75,12 +75,7 @@ public class Bookmark extends Element implements ListItem {
 	}
 
 	public String getNick() {
-		Element nick = this.findChild("nick");
-		if (nick != null) {
-			return nick.getContent();
-		} else {
-			return null;
-		}
+		return this.findChildContent("nick");
 	}
 
 	public void setNick(String nick) {
@@ -96,12 +91,7 @@ public class Bookmark extends Element implements ListItem {
 	}
 
 	public String getPassword() {
-		Element password = this.findChild("password");
-		if (password != null) {
-			return password.getContent();
-		} else {
-			return null;
-		}
+		return this.findChildContent("password");
 	}
 
 	public void setPassword(String password) {
diff --git a/src/main/java/eu/siacs/conversations/entities/Contact.java b/src/main/java/eu/siacs/conversations/entities/Contact.java
index 9dbca59a..e546f214 100644
--- a/src/main/java/eu/siacs/conversations/entities/Contact.java
+++ b/src/main/java/eu/siacs/conversations/entities/Contact.java
@@ -237,8 +237,16 @@ public class Contact implements ListItem, Blockable {
 		return this.presences.getMostAvailableStatus();
 	}
 
-	public void setPhotoUri(String uri) {
-		this.photoUri = uri;
+	public boolean setPhotoUri(String uri) {
+		if (uri != null && !uri.equals(this.photoUri)) {
+			this.photoUri = uri;
+			return true;
+		} else if (this.photoUri != null && uri == null) {
+			this.photoUri = null;
+			return true;
+		} else {
+			return false;
+		}
 	}
 
 	public void setServerName(String serverName) {
diff --git a/src/main/java/eu/siacs/conversations/entities/Conversation.java b/src/main/java/eu/siacs/conversations/entities/Conversation.java
index 95a8c957..289ed4ea 100644
--- a/src/main/java/eu/siacs/conversations/entities/Conversation.java
+++ b/src/main/java/eu/siacs/conversations/entities/Conversation.java
@@ -249,6 +249,12 @@ public class Conversation extends AbstractEntity implements Blockable {
 		this.mLastReceivedOtrMessageId = id;
 	}
 
+	public int countMessages() {
+		synchronized (this.messages) {
+			return this.messages.size();
+		}
+	}
+
 
 	public interface OnMessageFound {
 		public void onMessageFound(final Message message);
@@ -419,7 +425,7 @@ public class Conversation extends AbstractEntity implements Blockable {
 			final SessionID sessionId = new SessionID(this.getJid().toBareJid().toString(),
 					presence,
 					"xmpp");
-			this.otrSession = new SessionImpl(sessionId, getAccount().getOtrEngine());
+			this.otrSession = new SessionImpl(sessionId, getAccount().getOtrService());
 			try {
 				if (sendStart) {
 					this.otrSession.startSession();
@@ -491,7 +497,7 @@ public class Conversation extends AbstractEntity implements Blockable {
 					return null;
 				}
 				DSAPublicKey remotePubKey = (DSAPublicKey) getOtrSession().getRemotePublicKey();
-				this.otrFingerprint = getAccount().getOtrEngine().getFingerprint(remotePubKey);
+				this.otrFingerprint = getAccount().getOtrService().getFingerprint(remotePubKey);
 			} catch (final OtrCryptoException | UnsupportedOperationException ignored) {
 				return null;
 			}
diff --git a/src/main/java/eu/siacs/conversations/entities/Message.java b/src/main/java/eu/siacs/conversations/entities/Message.java
index 38152edb..a63d033d 100644
--- a/src/main/java/eu/siacs/conversations/entities/Message.java
+++ b/src/main/java/eu/siacs/conversations/entities/Message.java
@@ -17,7 +17,7 @@ public class Message extends AbstractEntity {
 
 	public static final String TABLENAME = "messages";
 
-	public static final String MERGE_SEPARATOR = "\u200B\n\n";
+	public static final String MERGE_SEPARATOR = " \u200B\n\n";
 
 	public static final int STATUS_RECEIVED = 0;
 	public static final int STATUS_UNSEND = 1;
@@ -328,7 +328,7 @@ public class Message extends AbstractEntity {
 			return this.remoteMsgId == null
 					&& this.counterpart.equals(message.getCounterpart())
 					&& this.body.equals(message.getBody())
-					&& Math.abs(this.getTimeSent() - message.getTimeSent()) < Config.PING_TIMEOUT * 500;
+					&& Math.abs(this.getTimeSent() - message.getTimeSent()) < Config.MESSAGE_MERGE_WINDOW * 1000;
 		}
 	}
 
diff --git a/src/main/java/eu/siacs/conversations/entities/Roster.java b/src/main/java/eu/siacs/conversations/entities/Roster.java
index ce058004..d6777ef6 100644
--- a/src/main/java/eu/siacs/conversations/entities/Roster.java
+++ b/src/main/java/eu/siacs/conversations/entities/Roster.java
@@ -2,6 +2,7 @@ package eu.siacs.conversations.entities;
 
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.Iterator;
 import java.util.List;
 
 import eu.siacs.conversations.xmpp.jid.Jid;
@@ -55,12 +56,15 @@ public class Roster {
 		}
 	}
 
-	public void clearSystemAccounts() {
-		for (Contact contact : getContacts()) {
-			contact.setPhotoUri(null);
-			contact.setSystemName(null);
-			contact.setSystemAccount(null);
+	public List<Contact> getWithSystemAccounts() {
+		List<Contact> with = getContacts();
+		for(Iterator<Contact> iterator = with.iterator(); iterator.hasNext();) {
+			Contact contact = iterator.next();
+			if (contact.getSystemAccount() == null) {
+				iterator.remove();
+			}
 		}
+		return with;
 	}
 
 	public List<Contact> getContacts() {
diff --git a/src/main/java/eu/siacs/conversations/parser/AbstractParser.java b/src/main/java/eu/siacs/conversations/parser/AbstractParser.java
index bfe84440..24e93db1 100644
--- a/src/main/java/eu/siacs/conversations/parser/AbstractParser.java
+++ b/src/main/java/eu/siacs/conversations/parser/AbstractParser.java
@@ -11,6 +11,7 @@ import eu.siacs.conversations.entities.Contact;
 import eu.siacs.conversations.services.XmppConnectionService;
 import eu.siacs.conversations.xml.Element;
 import eu.siacs.conversations.xmpp.jid.Jid;
+import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 
 public abstract class AbstractParser {
 
@@ -20,22 +21,23 @@ public abstract class AbstractParser {
 		this.mXmppConnectionService = service;
 	}
 
-	protected long getTimestamp(Element packet) {
-		long now = System.currentTimeMillis();
-		Element delay = packet.findChild("delay");
-		if (delay == null) {
-			return now;
-		}
-		String stamp = delay.getAttribute("stamp");
-		if (stamp == null) {
-			return now;
-		}
-		try {
-			long time = parseTimestamp(stamp).getTime();
-			return now < time ? now : time;
-		} catch (ParseException e) {
-			return now;
+	public static Long getTimestamp(Element element, Long defaultValue) {
+		Element delay = element.findChild("delay","urn:xmpp:delay");
+		if (delay != null) {
+			String stamp = delay.getAttribute("stamp");
+			if (stamp != null) {
+				try {
+					return AbstractParser.parseTimestamp(delay.getAttribute("stamp")).getTime();
+				} catch (ParseException e) {
+					return defaultValue;
+				}
+			}
 		}
+		return defaultValue;
+	}
+
+	protected long getTimestamp(Element packet) {
+		return getTimestamp(packet,System.currentTimeMillis());
 	}
 
 	public static Date parseTimestamp(String timestamp) throws ParseException {
@@ -46,14 +48,11 @@ public abstract class AbstractParser {
 		return dateFormat.parse(timestamp);
 	}
 
-	protected void updateLastseen(final Element packet, final Account account,
-			final boolean presenceOverwrite) {
-		final Jid from = packet.getAttributeAsJid("from");
-		updateLastseen(packet, account, from, presenceOverwrite);
+	protected void updateLastseen(final Element packet, final Account account, final boolean presenceOverwrite) {
+		updateLastseen(packet, account, packet.getAttributeAsJid("from"), presenceOverwrite);
 	}
 
-	protected void updateLastseen(final Element packet, final Account account, final Jid from,
-								  final boolean presenceOverwrite) {
+	protected void updateLastseen(final Element packet, final Account account, final Jid from, final boolean presenceOverwrite) {
 		final String presence = from == null || from.isBareJid() ? "" : from.getResourcepart();
 		final Contact contact = account.getRoster().getContact(from);
 		final long timestamp = getTimestamp(packet);
@@ -70,10 +69,6 @@ public abstract class AbstractParser {
 		if (item == null) {
 			return null;
 		}
-		Element data = item.findChild("data", "urn:xmpp:avatar:data");
-		if (data == null) {
-			return null;
-		}
-		return data.getContent();
+		return item.findChildContent("data", "urn:xmpp:avatar:data");
 	}
 }
diff --git a/src/main/java/eu/siacs/conversations/parser/MessageParser.java b/src/main/java/eu/siacs/conversations/parser/MessageParser.java
index 7870fdbf..96568fbd 100644
--- a/src/main/java/eu/siacs/conversations/parser/MessageParser.java
+++ b/src/main/java/eu/siacs/conversations/parser/MessageParser.java
@@ -1,8 +1,12 @@
 package eu.siacs.conversations.parser;
 
+import android.util.Log;
+import android.util.Pair;
+
 import net.java.otr4j.session.Session;
 import net.java.otr4j.session.SessionStatus;
 
+import eu.siacs.conversations.Config;
 import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.Contact;
 import eu.siacs.conversations.entities.Conversation;
@@ -25,12 +29,12 @@ public class MessageParser extends AbstractParser implements
 		super(service);
 	}
 
-	private boolean extractChatState(Conversation conversation, final Element element) {
-		ChatState state = ChatState.parse(element);
+	private boolean extractChatState(Conversation conversation, final MessagePacket packet) {
+		ChatState state = ChatState.parse(packet);
 		if (state != null && conversation != null) {
 			final Account account = conversation.getAccount();
-			Jid from = element.getAttributeAsJid("from");
-			if (from != null && from.toBareJid().equals(account.getJid().toBareJid())) {
+			Jid from = packet.getFrom();
+			if (from.toBareJid().equals(account.getJid().toBareJid())) {
 				conversation.setOutgoingChatState(state);
 				return false;
 			} else {
@@ -40,86 +44,27 @@ public class MessageParser extends AbstractParser implements
 		return false;
 	}
 
-	private Message parseChat(MessagePacket packet, Account account) {
-		final Jid jid = packet.getFrom();
-		if (jid == null) {
-			return null;
-		}
-		Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, jid.toBareJid(), false);
-		String pgpBody = getPgpBody(packet);
-		Message finishedMessage;
-		if (pgpBody != null) {
-			finishedMessage = new Message(conversation,
-					pgpBody, Message.ENCRYPTION_PGP, Message.STATUS_RECEIVED);
-		} else {
-			finishedMessage = new Message(conversation,
-					packet.getBody(), Message.ENCRYPTION_NONE,
-					Message.STATUS_RECEIVED);
-		}
-		finishedMessage.setRemoteMsgId(packet.getId());
-		finishedMessage.markable = isMarkable(packet);
-		if (conversation.getMode() == Conversation.MODE_MULTI
-				&& !jid.isBareJid()) {
-			final Jid trueCounterpart = conversation.getMucOptions()
-					.getTrueCounterpart(jid.getResourcepart());
-			if (trueCounterpart != null) {
-				updateLastseen(packet, account, trueCounterpart, false);
-			}
-			finishedMessage.setType(Message.TYPE_PRIVATE);
-			finishedMessage.setTrueCounterpart(trueCounterpart);
-			if (conversation.hasDuplicateMessage(finishedMessage)) {
-				return null;
-			}
-		} else {
-			updateLastseen(packet, account, true);
-		}
-		finishedMessage.setCounterpart(jid);
-		finishedMessage.setTime(getTimestamp(packet));
-		extractChatState(conversation,packet);
-		return finishedMessage;
-	}
-
-	private Message parseOtrChat(MessagePacket packet, Account account) {
-		final Jid to = packet.getTo();
-		final Jid from = packet.getFrom();
-		if (to == null || from == null) {
-			return null;
-		}
-		boolean properlyAddressed = !to.isBareJid() || account.countPresences() == 1;
-		Conversation conversation = mXmppConnectionService
-				.findOrCreateConversation(account, from.toBareJid(), false);
+	private Message parseOtrChat(String body, Jid from, String id, Conversation conversation) {
 		String presence;
 		if (from.isBareJid()) {
 			presence = "";
 		} else {
 			presence = from.getResourcepart();
 		}
-		extractChatState(conversation, packet);
-		updateLastseen(packet, account, true);
-		String body = packet.getBody();
 		if (body.matches("^\\?OTRv\\d{1,2}\\?.*")) {
 			conversation.endOtrIfNeeded();
 		}
 		if (!conversation.hasValidOtrSession()) {
-			if (properlyAddressed) {
-				conversation.startOtrSession(presence,false);
-			} else {
-				return null;
-			}
+			conversation.startOtrSession(presence,false);
 		} else {
-			String foreignPresence = conversation.getOtrSession()
-					.getSessionID().getUserID();
+			String foreignPresence = conversation.getOtrSession().getSessionID().getUserID();
 			if (!foreignPresence.equals(presence)) {
 				conversation.endOtrIfNeeded();
-				if (properlyAddressed) {
-					conversation.startOtrSession(presence, false);
-				} else {
-					return null;
-				}
+				conversation.startOtrSession(presence, false);
 			}
 		}
 		try {
-			conversation.setLastReceivedOtrMessageId(packet.getId());
+			conversation.setLastReceivedOtrMessageId(id);
 			Session otrSession = conversation.getOtrSession();
 			SessionStatus before = otrSession.getSessionStatus();
 			body = otrSession.transformReceiving(body);
@@ -140,12 +85,7 @@ public class MessageParser extends AbstractParser implements
 				conversation.setSymmetricKey(CryptoHelper.hexToBytes(key));
 				return null;
 			}
-			Message finishedMessage = new Message(conversation, body, Message.ENCRYPTION_OTR,
-					Message.STATUS_RECEIVED);
-			finishedMessage.setTime(getTimestamp(packet));
-			finishedMessage.setRemoteMsgId(packet.getId());
-			finishedMessage.markable = isMarkable(packet);
-			finishedMessage.setCounterpart(from);
+			Message finishedMessage = new Message(conversation, body, Message.ENCRYPTION_OTR, Message.STATUS_RECEIVED);
 			conversation.setLastReceivedOtrMessageId(null);
 			return finishedMessage;
 		} catch (Exception e) {
@@ -154,293 +94,6 @@ public class MessageParser extends AbstractParser implements
 		}
 	}
 
-	private Message parseGroupchat(MessagePacket packet, Account account) {
-		int status;
-		final Jid from = packet.getFrom();
-		if (from == null) {
-			return null;
-		}
-		if (mXmppConnectionService.find(account.pendingConferenceLeaves,
-				account, from.toBareJid()) != null) {
-			return null;
-		}
-		Conversation conversation = mXmppConnectionService
-				.findOrCreateConversation(account, from.toBareJid(), true);
-		final Jid trueCounterpart = conversation.getMucOptions().getTrueCounterpart(from.getResourcepart());
-		if (trueCounterpart != null) {
-			updateLastseen(packet, account, trueCounterpart, false);
-		}
-		if (packet.hasChild("subject")) {
-			conversation.setHasMessagesLeftOnServer(true);
-			conversation.getMucOptions().setSubject(packet.findChild("subject").getContent());
-			mXmppConnectionService.updateConversationUi();
-			return null;
-		}
-
-		final Element x = packet.findChild("x", "http://jabber.org/protocol/muc#user");
-		if (from.isBareJid() && (x == null || !x.hasChild("status"))) {
-			return null;
-		} else if (from.isBareJid() && x.hasChild("status")) {
-			for(Element child : x.getChildren()) {
-				if (child.getName().equals("status")) {
-					String code = child.getAttribute("code");
-					if (code.contains(MucOptions.STATUS_CODE_ROOM_CONFIG_CHANGED)) {
-						mXmppConnectionService.fetchConferenceConfiguration(conversation);
-					}
-				}
-			}
-			return null;
-		}
-
-		if (from.getResourcepart().equals(conversation.getMucOptions().getActualNick())) {
-			if (mXmppConnectionService.markMessage(conversation,
-					packet.getId(), Message.STATUS_SEND_RECEIVED)) {
-				return null;
-			} else if (packet.getId() == null) {
-				Message message = conversation.findSentMessageWithBody(packet.getBody());
-				if (message != null) {
-					mXmppConnectionService.markMessage(message,Message.STATUS_SEND_RECEIVED);
-					return null;
-				} else {
-					status = Message.STATUS_SEND;
-				}
-			} else {
-				status = Message.STATUS_SEND;
-			}
-		} else {
-			status = Message.STATUS_RECEIVED;
-		}
-		String pgpBody = getPgpBody(packet);
-		Message finishedMessage;
-		if (pgpBody == null) {
-			finishedMessage = new Message(conversation,
-					packet.getBody(), Message.ENCRYPTION_NONE, status);
-		} else {
-			finishedMessage = new Message(conversation, pgpBody,
-					Message.ENCRYPTION_PGP, status);
-		}
-		finishedMessage.setRemoteMsgId(packet.getId());
-		finishedMessage.markable = isMarkable(packet);
-		finishedMessage.setCounterpart(from);
-		if (status == Message.STATUS_RECEIVED) {
-			finishedMessage.setTrueCounterpart(conversation.getMucOptions()
-					.getTrueCounterpart(from.getResourcepart()));
-		}
-		if (packet.hasChild("delay")
-				&& conversation.hasDuplicateMessage(finishedMessage)) {
-			return null;
-		}
-		finishedMessage.setTime(getTimestamp(packet));
-		return finishedMessage;
-	}
-
-	private Message parseCarbonMessage(final MessagePacket packet, final Account account) {
-		int status;
-		final Jid fullJid;
-		Element forwarded;
-		if (packet.hasChild("received", "urn:xmpp:carbons:2")) {
-			forwarded = packet.findChild("received", "urn:xmpp:carbons:2")
-					.findChild("forwarded", "urn:xmpp:forward:0");
-			status = Message.STATUS_RECEIVED;
-		} else if (packet.hasChild("sent", "urn:xmpp:carbons:2")) {
-			forwarded = packet.findChild("sent", "urn:xmpp:carbons:2")
-					.findChild("forwarded", "urn:xmpp:forward:0");
-			status = Message.STATUS_SEND;
-		} else {
-			return null;
-		}
-		if (forwarded == null) {
-			return null;
-		}
-		Element message = forwarded.findChild("message");
-		if (message == null) {
-			return null;
-		}
-		if (!message.hasChild("body")) {
-			if (status == Message.STATUS_RECEIVED
-					&& message.getAttribute("from") != null) {
-				parseNonMessage(message, account);
-			} else if (status == Message.STATUS_SEND
-					&& message.hasChild("displayed", "urn:xmpp:chat-markers:0")) {
-				final Jid to = message.getAttributeAsJid("to");
-				if (to != null) {
-					final Conversation conversation = mXmppConnectionService.find(
-							mXmppConnectionService.getConversations(), account,
-							to.toBareJid());
-					if (conversation != null) {
-						mXmppConnectionService.markRead(conversation);
-					}
-				}
-			}
-			return null;
-		}
-		if (status == Message.STATUS_RECEIVED) {
-			fullJid = message.getAttributeAsJid("from");
-			if (fullJid == null) {
-				return null;
-			} else {
-				updateLastseen(message, account, true);
-			}
-		} else {
-			fullJid = message.getAttributeAsJid("to");
-			if (fullJid == null) {
-				return null;
-			}
-		}
-		if (message.hasChild("x","http://jabber.org/protocol/muc#user")
-				&& "chat".equals(message.getAttribute("type"))) {
-			return null;
-		}
-		Conversation conversation = mXmppConnectionService
-				.findOrCreateConversation(account, fullJid.toBareJid(), false);
-		String pgpBody = getPgpBody(message);
-		Message finishedMessage;
-		if (pgpBody != null) {
-			finishedMessage = new Message(conversation, pgpBody,
-					Message.ENCRYPTION_PGP, status);
-		} else {
-			String body = message.findChild("body").getContent();
-			finishedMessage = new Message(conversation, body,
-					Message.ENCRYPTION_NONE, status);
-		}
-		extractChatState(conversation,message);
-		finishedMessage.setTime(getTimestamp(message));
-		finishedMessage.setRemoteMsgId(message.getAttribute("id"));
-		finishedMessage.markable = isMarkable(message);
-		finishedMessage.setCounterpart(fullJid);
-		if (conversation.getMode() == Conversation.MODE_MULTI
-				&& !fullJid.isBareJid()) {
-			finishedMessage.setType(Message.TYPE_PRIVATE);
-			finishedMessage.setTrueCounterpart(conversation.getMucOptions()
-					.getTrueCounterpart(fullJid.getResourcepart()));
-			if (conversation.hasDuplicateMessage(finishedMessage)) {
-				return null;
-			}
-		}
-		return finishedMessage;
-	}
-
-	private Message parseMamMessage(MessagePacket packet, final Account account) {
-		final Element result = packet.findChild("result","urn:xmpp:mam:0");
-		if (result == null ) {
-			return null;
-		}
-		final MessageArchiveService.Query query = this.mXmppConnectionService.getMessageArchiveService().findQuery(result.getAttribute("queryid"));
-		if (query!=null) {
-			query.incrementTotalCount();
-		}
-		final Element forwarded = result.findChild("forwarded","urn:xmpp:forward:0");
-		if (forwarded == null) {
-			return null;
-		}
-		final Element message = forwarded.findChild("message");
-		if (message == null) {
-			return null;
-		}
-		final Element body = message.findChild("body");
-		if (body == null || message.hasChild("private","urn:xmpp:carbons:2") || message.hasChild("no-copy","urn:xmpp:hints")) {
-			return null;
-		}
-		int encryption;
-		String content = getPgpBody(message);
-		if (content != null) {
-			encryption = Message.ENCRYPTION_PGP;
-		} else {
-			encryption = Message.ENCRYPTION_NONE;
-			content = body.getContent();
-		}
-		if (content == null) {
-			return null;
-		}
-		final long timestamp = getTimestamp(forwarded);
-		final Jid to = message.getAttributeAsJid("to");
-		final Jid from = message.getAttributeAsJid("from");
-		Jid counterpart;
-		int status;
-		Conversation conversation;
-		if (from!=null && to != null && from.toBareJid().equals(account.getJid().toBareJid())) {
-			status = Message.STATUS_SEND;
-			conversation = this.mXmppConnectionService.findOrCreateConversation(account,to.toBareJid(),false,query);
-			counterpart = to;
-		} else if (from !=null && to != null) {
-			status = Message.STATUS_RECEIVED;
-			conversation = this.mXmppConnectionService.findOrCreateConversation(account,from.toBareJid(),false,query);
-			counterpart = from;
-		} else {
-			return null;
-		}
-		Message finishedMessage = new Message(conversation,content,encryption,status);
-		finishedMessage.setTime(timestamp);
-		finishedMessage.setCounterpart(counterpart);
-		finishedMessage.setRemoteMsgId(message.getAttribute("id"));
-		finishedMessage.setServerMsgId(result.getAttribute("id"));
-		if (conversation.hasDuplicateMessage(finishedMessage)) {
-			return null;
-		}
-		if (query!=null) {
-			query.incrementMessageCount();
-		}
-		return finishedMessage;
-	}
-
-	private void parseError(final MessagePacket packet, final Account account) {
-		final Jid from = packet.getFrom();
-		mXmppConnectionService.markMessage(account, from.toBareJid(),
-				packet.getId(), Message.STATUS_SEND_FAILED);
-	}
-
-	private void parseNonMessage(Element packet, Account account) {
-		final Jid from = packet.getAttributeAsJid("from");
-		if (account.getJid().equals(from)) {
-			return;
-		}
-		if (extractChatState(from == null ? null : mXmppConnectionService.find(account,from), packet)) {
-			mXmppConnectionService.updateConversationUi();
-		}
-		Invite invite = extractInvite(packet);
-		if (invite != null && invite.jid != null) {
-			Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, invite.jid, true);
-			if (!conversation.getMucOptions().online()) {
-				conversation.getMucOptions().setPassword(invite.password);
-				mXmppConnectionService.databaseBackend.updateConversation(conversation);
-				mXmppConnectionService.joinMuc(conversation);
-				mXmppConnectionService.updateConversationUi();
-			}
-		}
-		if (packet.hasChild("event", "http://jabber.org/protocol/pubsub#event")) {
-			Element event = packet.findChild("event",
-					"http://jabber.org/protocol/pubsub#event");
-			parseEvent(event, from, account);
-		} else if (from != null && packet.hasChild("displayed", "urn:xmpp:chat-markers:0")) {
-			String id = packet
-					.findChild("displayed", "urn:xmpp:chat-markers:0")
-					.getAttribute("id");
-			updateLastseen(packet, account, true);
-			final Message displayedMessage = mXmppConnectionService.markMessage(account, from.toBareJid(), id, Message.STATUS_SEND_DISPLAYED);
-			Message message = displayedMessage == null ? null :displayedMessage.prev();
-			while (message != null
-					&& message.getStatus() == Message.STATUS_SEND_RECEIVED
-					&& message.getTimeSent() < displayedMessage.getTimeSent()) {
-				mXmppConnectionService.markMessage(message, Message.STATUS_SEND_DISPLAYED);
-				message = message.prev();
-			}
-		} else if (from != null
-				&& packet.hasChild("received", "urn:xmpp:chat-markers:0")) {
-			String id = packet.findChild("received", "urn:xmpp:chat-markers:0")
-					.getAttribute("id");
-			updateLastseen(packet, account, false);
-			mXmppConnectionService.markMessage(account, from.toBareJid(),
-					id, Message.STATUS_SEND_RECEIVED);
-		} else if (from != null
-				&& packet.hasChild("received", "urn:xmpp:receipts")) {
-			String id = packet.findChild("received", "urn:xmpp:receipts")
-					.getAttribute("id");
-			updateLastseen(packet, account, false);
-			mXmppConnectionService.markMessage(account, from.toBareJid(),
-					id, Message.STATUS_SEND_RECEIVED);
-		}
-	}
-
 	private class Invite {
 		Jid jid;
 		String password;
@@ -448,10 +101,24 @@ public class MessageParser extends AbstractParser implements
 			this.jid = jid;
 			this.password = password;
 		}
+
+		public boolean execute(Account account) {
+			if (jid != null) {
+				Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, jid, true);
+				if (!conversation.getMucOptions().online()) {
+					conversation.getMucOptions().setPassword(password);
+					mXmppConnectionService.databaseBackend.updateConversation(conversation);
+					mXmppConnectionService.joinMuc(conversation);
+					mXmppConnectionService.updateConversationUi();
+				}
+				return true;
+			}
+			return false;
+		}
 	}
 
 	private Invite extractInvite(Element message) {
-		Element x = message.findChild("x","http://jabber.org/protocol/muc#user");
+		Element x = message.findChild("x", "http://jabber.org/protocol/muc#user");
 		if (x != null) {
 			Element invite = x.findChild("invite");
 			if (invite != null) {
@@ -469,34 +136,23 @@ public class MessageParser extends AbstractParser implements
 
 	private void parseEvent(final Element event, final Jid from, final Account account) {
 		Element items = event.findChild("items");
-		if (items == null) {
-			return;
-		}
-		String node = items.getAttribute("node");
-		if (node == null) {
-			return;
-		}
-		if (node.equals("urn:xmpp:avatar:metadata")) {
+		String node = items == null ? null : items.getAttribute("node");
+		if ("urn:xmpp:avatar:metadata".equals(node)) {
 			Avatar avatar = Avatar.parseMetadata(items);
 			if (avatar != null) {
 				avatar.owner = from;
-				if (mXmppConnectionService.getFileBackend().isAvatarCached(
-						avatar)) {
+				if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
 					if (account.getJid().toBareJid().equals(from)) {
 						if (account.setAvatar(avatar.getFilename())) {
-							mXmppConnectionService.databaseBackend
-									.updateAccount(account);
+							mXmppConnectionService.databaseBackend.updateAccount(account);
 						}
-						mXmppConnectionService.getAvatarService().clear(
-								account);
+						mXmppConnectionService.getAvatarService().clear(account);
 						mXmppConnectionService.updateConversationUi();
 						mXmppConnectionService.updateAccountUi();
 					} else {
-						Contact contact = account.getRoster().getContact(
-								from);
+						Contact contact = account.getRoster().getContact(from);
 						contact.setAvatar(avatar);
-						mXmppConnectionService.getAvatarService().clear(
-								contact);
+						mXmppConnectionService.getAvatarService().clear(contact);
 						mXmppConnectionService.updateConversationUi();
 						mXmppConnectionService.updateRosterUi();
 					}
@@ -504,161 +160,257 @@ public class MessageParser extends AbstractParser implements
 					mXmppConnectionService.fetchAvatar(account, avatar);
 				}
 			}
-		} else if (node.equals("http://jabber.org/protocol/nick")) {
-			Element item = items.findChild("item");
-			if (item != null) {
-				Element nick = item.findChild("nick",
-						"http://jabber.org/protocol/nick");
-				if (nick != null) {
-					if (from != null) {
-						Contact contact = account.getRoster().getContact(
-								from);
-						contact.setPresenceName(nick.getContent());
-						mXmppConnectionService.getAvatarService().clear(account);
-						mXmppConnectionService.updateConversationUi();
-						mXmppConnectionService.updateAccountUi();
-					}
-				}
+		} else if ("http://jabber.org/protocol/nick".equals(node)) {
+			Element i = items.findChild("item");
+			Element nick = i == null ? null : i.findChild("nick", "http://jabber.org/protocol/nick");
+			if (nick != null) {
+				Contact contact = account.getRoster().getContact(from);
+				contact.setPresenceName(nick.getContent());
+				mXmppConnectionService.getAvatarService().clear(account);
+				mXmppConnectionService.updateConversationUi();
+				mXmppConnectionService.updateAccountUi();
 			}
 		}
 	}
 
-	private String getPgpBody(Element message) {
-		Element child = message.findChild("x", "jabber:x:encrypted");
-		if (child == null) {
-			return null;
-		} else {
-			return child.getContent();
+	private boolean handleErrorMessage(Account account, MessagePacket packet) {
+		if (packet.getType() == MessagePacket.TYPE_ERROR) {
+			Jid from = packet.getFrom();
+			if (from != null) {
+				mXmppConnectionService.markMessage(account, from.toBareJid(), packet.getId(), Message.STATUS_SEND_FAILED);
+			}
+			return true;
 		}
-	}
-
-	private boolean isMarkable(Element message) {
-		return message.hasChild("markable", "urn:xmpp:chat-markers:0");
+		return false;
 	}
 
 	@Override
-	public void onMessagePacketReceived(Account account, MessagePacket packet) {
-		Message message = null;
-		this.parseNick(packet, account);
-		if ((packet.getType() == MessagePacket.TYPE_CHAT || packet.getType() == MessagePacket.TYPE_NORMAL)) {
-			if ((packet.getBody() != null)
-					&& (packet.getBody().startsWith("?OTR"))) {
-				message = this.parseOtrChat(packet, account);
-				if (message != null) {
-					message.markUnread();
-				}
-			} else if (packet.hasChild("body") && extractInvite(packet) == null) {
-				message = this.parseChat(packet, account);
-				if (message != null) {
-					message.markUnread();
-				}
-			} else if (packet.hasChild("received", "urn:xmpp:carbons:2")
-					|| (packet.hasChild("sent", "urn:xmpp:carbons:2"))) {
-				message = this.parseCarbonMessage(packet, account);
-				if (message != null) {
-					if (message.getStatus() == Message.STATUS_SEND) {
-						account.activateGracePeriod();
-						mXmppConnectionService.markRead(message.getConversation());
+	public void onMessagePacketReceived(Account account, MessagePacket original) {
+		if (handleErrorMessage(account, original)) {
+			return;
+		}
+		final MessagePacket packet;
+		Long timestamp = null;
+		final boolean isForwarded;
+		String serverMsgId = null;
+		final Element fin = original.findChild("fin", "urn:xmpp:mam:0");
+		if (fin != null) {
+			mXmppConnectionService.getMessageArchiveService().processFin(fin,original.getFrom());
+			return;
+		}
+		final Element result = original.findChild("result","urn:xmpp:mam:0");
+		final MessageArchiveService.Query query = result == null ? null : mXmppConnectionService.getMessageArchiveService().findQuery(result.getAttribute("queryid"));
+		if (query != null && query.validFrom(original.getFrom())) {
+			Pair<MessagePacket, Long> f = original.getForwardedMessagePacket("result", "urn:xmpp:mam:0");
+			if (f == null) {
+				return;
+			}
+			timestamp = f.second;
+			packet = f.first;
+			isForwarded = true;
+			serverMsgId = result.getAttribute("id");
+			query.incrementTotalCount();
+		} else if (query != null) {
+			Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received mam result from invalid sender");
+			return;
+		} else if (original.fromServer(account)) {
+			Pair<MessagePacket, Long> f;
+			f = original.getForwardedMessagePacket("received", "urn:xmpp:carbons:2");
+			f = f == null ? original.getForwardedMessagePacket("sent", "urn:xmpp:carbons:2") : f;
+			packet = f != null ? f.first : original;
+			if (handleErrorMessage(account, packet)) {
+				return;
+			}
+			timestamp = f != null ? f.second : null;
+			isForwarded = f != null;
+		} else {
+			packet = original;
+			isForwarded = false;
+		}
+
+		if (timestamp == null) {
+			timestamp = AbstractParser.getTimestamp(packet, System.currentTimeMillis());
+		}
+		final String body = packet.getBody();
+		final String encrypted = packet.findChildContent("x", "jabber:x:encrypted");
+		int status;
+		final Jid counterpart;
+		final Jid to = packet.getTo();
+		final Jid from = packet.getFrom();
+		final String remoteMsgId = packet.getId();
+		boolean isTypeGroupChat = packet.getType() == MessagePacket.TYPE_GROUPCHAT;
+		boolean properlyAddressed = !to.isBareJid() || account.countPresences() == 1;
+		if (packet.fromAccount(account)) {
+			status = Message.STATUS_SEND;
+			counterpart = to;
+		} else {
+			status = Message.STATUS_RECEIVED;
+			counterpart = from;
+		}
+
+		if (from == null || to == null) {
+			Log.d(Config.LOGTAG,"no to or from in: "+packet.toString());
+			return;
+		}
+
+		Invite invite = extractInvite(packet);
+		if (invite != null && invite.execute(account)) {
+			return;
+		}
+
+		if (extractChatState(mXmppConnectionService.find(account,from), packet)) {
+			mXmppConnectionService.updateConversationUi();
+		}
+
+		if (body != null || encrypted != null) {
+			Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, counterpart.toBareJid(), isTypeGroupChat);
+			if (isTypeGroupChat) {
+				if (counterpart.getResourcepart().equals(conversation.getMucOptions().getActualNick())) {
+					status = Message.STATUS_SEND_RECEIVED;
+					if (mXmppConnectionService.markMessage(conversation, remoteMsgId, status)) {
+						return;
 					} else {
-						message.markUnread();
+						Message message = conversation.findSentMessageWithBody(body);
+						if (message != null) {
+							message.setRemoteMsgId(remoteMsgId);
+							mXmppConnectionService.markMessage(message, status);
+							return;
+						}
 					}
+				} else {
+					status = Message.STATUS_RECEIVED;
 				}
-			} else if (packet.hasChild("result","urn:xmpp:mam:0")) {
-				message = parseMamMessage(packet, account);
-				if (message != null) {
-					Conversation conversation = message.getConversation();
-					conversation.add(message);
-					mXmppConnectionService.databaseBackend.createMessage(message);
+			}
+			Message message;
+			if (body != null && body.startsWith("?OTR")) {
+				if (!isForwarded && !isTypeGroupChat && properlyAddressed) {
+					message = parseOtrChat(body, from, remoteMsgId, conversation);
+					if (message == null) {
+						return;
+					}
+				} else {
+					message = new Message(conversation, body, Message.ENCRYPTION_NONE, status);
 				}
-				return;
-			} else if (packet.hasChild("fin","urn:xmpp:mam:0")) {
-				Element fin = packet.findChild("fin","urn:xmpp:mam:0");
-				mXmppConnectionService.getMessageArchiveService().processFin(fin);
+			} else if (encrypted != null) {
+				message = new Message(conversation, encrypted, Message.ENCRYPTION_PGP, status);
 			} else {
-				parseNonMessage(packet, account);
+				message = new Message(conversation, body, Message.ENCRYPTION_NONE, status);
 			}
-		} else if (packet.getType() == MessagePacket.TYPE_GROUPCHAT) {
-			message = this.parseGroupchat(packet, account);
-			if (message != null) {
-				if (message.getStatus() == Message.STATUS_RECEIVED) {
-					message.markUnread();
-				} else {
-					mXmppConnectionService.markRead(message.getConversation());
-					account.activateGracePeriod();
+			message.setCounterpart(counterpart);
+			message.setRemoteMsgId(remoteMsgId);
+			message.setServerMsgId(serverMsgId);
+			message.setTime(timestamp);
+			message.markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
+			if (conversation.getMode() == Conversation.MODE_MULTI) {
+				message.setTrueCounterpart(conversation.getMucOptions().getTrueCounterpart(counterpart.getResourcepart()));
+				if (!isTypeGroupChat) {
+					message.setType(Message.TYPE_PRIVATE);
 				}
 			}
-		} else if (packet.getType() == MessagePacket.TYPE_ERROR) {
-			this.parseError(packet, account);
-			return;
-		} else if (packet.getType() == MessagePacket.TYPE_HEADLINE) {
-			this.parseHeadline(packet, account);
-			return;
-		}
-		if ((message == null) || (message.getBody() == null)) {
-			return;
-		}
-		if ((mXmppConnectionService.confirmMessages())
-				&& ((packet.getId() != null))) {
-			if (packet.hasChild("markable", "urn:xmpp:chat-markers:0")) {
-				MessagePacket receipt = mXmppConnectionService
-						.getMessageGenerator().received(account, packet,
-								"urn:xmpp:chat-markers:0");
-				mXmppConnectionService.sendMessagePacket(account, receipt);
+			updateLastseen(packet,account,true);
+			boolean checkForDuplicates = serverMsgId != null
+					|| (isTypeGroupChat && packet.hasChild("delay","urn:xmpp:delay"))
+					|| message.getType() == Message.TYPE_PRIVATE;
+			if (checkForDuplicates && conversation.hasDuplicateMessage(message)) {
+				Log.d(Config.LOGTAG,"skipping duplicate message from "+message.getCounterpart().toString()+" "+message.getBody());
+				return;
 			}
-			if (packet.hasChild("request", "urn:xmpp:receipts")) {
-				MessagePacket receipt = mXmppConnectionService
-						.getMessageGenerator().received(account, packet,
-								"urn:xmpp:receipts");
-				mXmppConnectionService.sendMessagePacket(account, receipt);
+			if (query != null) {
+				query.incrementMessageCount();
 			}
-		}
-		Conversation conversation = message.getConversation();
-		conversation.add(message);
-		if (account.getXmppConnection() != null && account.getXmppConnection().getFeatures().advancedStreamFeaturesLoaded()) {
-			if (conversation.setLastMessageTransmitted(System.currentTimeMillis())) {
-				mXmppConnectionService.updateConversation(conversation);
+			conversation.add(message);
+			if (serverMsgId == null) {
+				if (status == Message.STATUS_SEND || status == Message.STATUS_SEND_RECEIVED) {
+					mXmppConnectionService.markRead(conversation);
+					account.activateGracePeriod();
+				} else {
+					message.markUnread();
+				}
+				mXmppConnectionService.updateConversationUi();
 			}
-		}
 
-		if (message.getStatus() == Message.STATUS_RECEIVED
-				&& conversation.getOtrSession() != null
-				&& !conversation.getOtrSession().getSessionID().getUserID()
-				.equals(message.getCounterpart().getResourcepart())) {
-			conversation.endOtrIfNeeded();
-		}
+			if (mXmppConnectionService.confirmMessages() && remoteMsgId != null && !isForwarded) {
+				if (packet.hasChild("markable", "urn:xmpp:chat-markers:0")) {
+					MessagePacket receipt = mXmppConnectionService
+							.getMessageGenerator().received(account, packet, "urn:xmpp:chat-markers:0");
+					mXmppConnectionService.sendMessagePacket(account, receipt);
+				}
+				if (packet.hasChild("request", "urn:xmpp:receipts")) {
+					MessagePacket receipt = mXmppConnectionService
+							.getMessageGenerator().received(account, packet, "urn:xmpp:receipts");
+					mXmppConnectionService.sendMessagePacket(account, receipt);
+				}
+			}
+			if (account.getXmppConnection() != null && account.getXmppConnection().getFeatures().advancedStreamFeaturesLoaded()) {
+				if (conversation.setLastMessageTransmitted(System.currentTimeMillis())) {
+					mXmppConnectionService.updateConversation(conversation);
+				}
+			}
 
-		if (packet.getType() != MessagePacket.TYPE_ERROR) {
-			if (message.getEncryption() == Message.ENCRYPTION_NONE
-					|| mXmppConnectionService.saveEncryptedMessages()) {
+			if (message.getStatus() == Message.STATUS_RECEIVED
+					&& conversation.getOtrSession() != null
+					&& !conversation.getOtrSession().getSessionID().getUserID()
+					.equals(message.getCounterpart().getResourcepart())) {
+				conversation.endOtrIfNeeded();
+			}
+
+			if (message.getEncryption() == Message.ENCRYPTION_NONE || mXmppConnectionService.saveEncryptedMessages()) {
 				mXmppConnectionService.databaseBackend.createMessage(message);
 			}
+			final HttpConnectionManager manager = this.mXmppConnectionService.getHttpConnectionManager();
+			if (message.trusted() && message.bodyContainsDownloadable() && manager.getAutoAcceptFileSize() > 0) {
+				manager.createNewConnection(message);
+			} else if (!message.isRead()) {
+				mXmppConnectionService.getNotificationService().push(message);
+			}
+		} else { //no body
+			if (packet.hasChild("subject") && isTypeGroupChat) {
+				Conversation conversation = mXmppConnectionService.find(account, from.toBareJid());
+				if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
+					conversation.setHasMessagesLeftOnServer(conversation.countMessages() > 0);
+					conversation.getMucOptions().setSubject(packet.findChildContent("subject"));
+					mXmppConnectionService.updateConversationUi();
+					return;
+				}
+			}
 		}
-		final HttpConnectionManager manager = this.mXmppConnectionService.getHttpConnectionManager();
-		if (message.trusted() && message.bodyContainsDownloadable() && manager.getAutoAcceptFileSize() > 0) {
-			manager.createNewConnection(message);
-		} else if (!message.isRead()) {
-			mXmppConnectionService.getNotificationService().push(message);
+
+		Element received = packet.findChild("received", "urn:xmpp:chat-markers:0");
+		if (received == null) {
+			received = packet.findChild("received", "urn:xmpp:receipts");
+		}
+		if (received != null && !packet.fromAccount(account)) {
+			mXmppConnectionService.markMessage(account, from.toBareJid(), received.getAttribute("id"), Message.STATUS_SEND_RECEIVED);
+		}
+		Element displayed = packet.findChild("displayed", "urn:xmpp:chat-markers:0");
+		if (displayed != null) {
+			if (packet.fromAccount(account)) {
+				Conversation conversation = mXmppConnectionService.find(account,counterpart.toBareJid());
+				if (conversation != null) {
+					mXmppConnectionService.markRead(conversation);
+				}
+			} else {
+				updateLastseen(packet, account, true);
+				final Message displayedMessage = mXmppConnectionService.markMessage(account, from.toBareJid(), displayed.getAttribute("id"), Message.STATUS_SEND_DISPLAYED);
+				Message message = displayedMessage == null ? null : displayedMessage.prev();
+				while (message != null
+						&& message.getStatus() == Message.STATUS_SEND_RECEIVED
+						&& message.getTimeSent() < displayedMessage.getTimeSent()) {
+					mXmppConnectionService.markMessage(message, Message.STATUS_SEND_DISPLAYED);
+					message = message.prev();
+				}
+			}
 		}
-		mXmppConnectionService.updateConversationUi();
-	}
 
-	private void parseHeadline(MessagePacket packet, Account account) {
-		if (packet.hasChild("event", "http://jabber.org/protocol/pubsub#event")) {
-			Element event = packet.findChild("event",
-					"http://jabber.org/protocol/pubsub#event");
-			parseEvent(event, packet.getFrom(), account);
+		Element event = packet.findChild("event", "http://jabber.org/protocol/pubsub#event");
+		if (event != null) {
+			parseEvent(event, from, account);
 		}
-	}
 
-	private void parseNick(MessagePacket packet, Account account) {
-		Element nick = packet.findChild("nick",
-				"http://jabber.org/protocol/nick");
+		String nick = packet.findChildContent("nick", "http://jabber.org/protocol/nick");
 		if (nick != null) {
-			if (packet.getFrom() != null) {
-				Contact contact = account.getRoster().getContact(
-						packet.getFrom());
-				contact.setPresenceName(nick.getContent());
-			}
+			Contact contact = account.getRoster().getContact(from);
+			contact.setPresenceName(nick);
 		}
 	}
-}
+}
\ No newline at end of file
diff --git a/src/main/java/eu/siacs/conversations/parser/PresenceParser.java b/src/main/java/eu/siacs/conversations/parser/PresenceParser.java
index f7872210..d83347d8 100644
--- a/src/main/java/eu/siacs/conversations/parser/PresenceParser.java
+++ b/src/main/java/eu/siacs/conversations/parser/PresenceParser.java
@@ -45,38 +45,37 @@ public class PresenceParser extends AbstractParser implements
 	}
 
 	public void parseContactPresence(PresencePacket packet, Account account) {
-		PresenceGenerator mPresenceGenerator = mXmppConnectionService
-				.getPresenceGenerator();
-		if (packet.getFrom() == null) {
+		PresenceGenerator mPresenceGenerator = mXmppConnectionService.getPresenceGenerator();
+		final Jid from = packet.getFrom();
+		if (from == null) {
 			return;
 		}
-		final Jid from = packet.getFrom();
-		String type = packet.getAttribute("type");
-		Contact contact = account.getRoster().getContact(packet.getFrom());
+		final String type = packet.getAttribute("type");
+		final Contact contact = account.getRoster().getContact(from);
 		if (type == null) {
-			String presence;
-			if (!from.isBareJid()) {
-				presence = from.getResourcepart();
-			} else {
-				presence = "";
+			String presence = from.isBareJid() ? "" : from.getResourcepart();
+			contact.setPresenceName(packet.findChildContent("nick", "http://jabber.org/protocol/nick"));
+			Avatar avatar = Avatar.parsePresence(packet.findChild("x", "vcard-temp:x:update"));
+			if (avatar != null && !contact.isSelf()) {
+				avatar.owner = from.toBareJid();
+				if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
+					if (contact.setAvatar(avatar)) {
+						mXmppConnectionService.getAvatarService().clear(contact);
+						mXmppConnectionService.updateConversationUi();
+						mXmppConnectionService.updateRosterUi();
+					}
+				} else {
+					mXmppConnectionService.fetchAvatar(account, avatar);
+				}
 			}
 			int sizeBefore = contact.getPresences().size();
-			contact.updatePresence(presence,
-					Presences.parseShow(packet.findChild("show")));
+			contact.updatePresence(presence, Presences.parseShow(packet.findChild("show")));
 			PgpEngine pgp = mXmppConnectionService.getPgpEngine();
-			if (pgp != null) {
-				Element x = packet.findChild("x", "jabber:x:signed");
-				if (x != null) {
-					Element status = packet.findChild("status");
-					String msg;
-					if (status != null) {
-						msg = status.getContent();
-					} else {
-						msg = "";
-					}
-					contact.setPgpKeyId(pgp.fetchKeyId(account, msg,
-							x.getContent()));
-				}
+			Element x = packet.findChild("x", "jabber:x:signed");
+			if (pgp != null && x != null) {
+				Element status = packet.findChild("status");
+				String msg = status != null ? status.getContent() : "";
+				contact.setPgpKeyId(pgp.fetchKeyId(account, msg, x.getContent()));
 			}
 			boolean online = sizeBefore < contact.getPresences().size();
 			updateLastseen(packet, account, false);
@@ -87,8 +86,7 @@ public class PresenceParser extends AbstractParser implements
 			} else {
 				contact.removePresence(from.getResourcepart());
 			}
-			mXmppConnectionService.onContactStatusChanged
-					.onContactStatusChanged(contact, false);
+			mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, false);
 		} else if (type.equals("subscribe")) {
 			if (contact.getOption(Contact.Options.PREEMPTIVE_GRANT)) {
 				mXmppConnectionService.sendPresencePacket(account,
@@ -97,25 +95,6 @@ public class PresenceParser extends AbstractParser implements
 				contact.setOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
 			}
 		}
-		Element nick = packet.findChild("nick",
-				"http://jabber.org/protocol/nick");
-		if (nick != null) {
-			contact.setPresenceName(nick.getContent());
-		}
-		Element x = packet.findChild("x","vcard-temp:x:update");
-		Avatar avatar = Avatar.parsePresence(x);
-		if (avatar != null && !contact.isSelf()) {
-			avatar.owner = from.toBareJid();
-			if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
-				if (contact.setAvatar(avatar)) {
-					mXmppConnectionService.getAvatarService().clear(contact);
-					mXmppConnectionService.updateConversationUi();
-					mXmppConnectionService.updateRosterUi();
-				}
-			} else {
-				mXmppConnectionService.fetchAvatar(account,avatar);
-			}
-		}
 		mXmppConnectionService.updateRosterUi();
 	}
 
diff --git a/src/main/java/eu/siacs/conversations/services/MessageArchiveService.java b/src/main/java/eu/siacs/conversations/services/MessageArchiveService.java
index f97077c4..0bc428c8 100644
--- a/src/main/java/eu/siacs/conversations/services/MessageArchiveService.java
+++ b/src/main/java/eu/siacs/conversations/services/MessageArchiveService.java
@@ -166,12 +166,12 @@ public class MessageArchiveService implements OnAdvancedStreamFeaturesLoaded {
 		}
 	}
 
-	public void processFin(Element fin) {
+	public void processFin(Element fin, Jid from) {
 		if (fin == null) {
 			return;
 		}
 		Query query = findQuery(fin.getAttribute("queryid"));
-		if (query == null) {
+		if (query == null || !query.validFrom(from)) {
 			return;
 		}
 		boolean complete = fin.getAttributeAsBoolean("complete");
@@ -336,6 +336,14 @@ public class MessageArchiveService implements OnAdvancedStreamFeaturesLoaded {
 			return this.messageCount;
 		}
 
+		public boolean validFrom(Jid from) {
+			if (muc()) {
+				return getWith().equals(from);
+			} else {
+				return (from == null) || account.getJid().toBareJid().equals(from.toBareJid());
+			}
+		}
+
 		@Override
 		public String toString() {
 			StringBuilder builder = new StringBuilder();
diff --git a/src/main/java/eu/siacs/conversations/services/NotificationService.java b/src/main/java/eu/siacs/conversations/services/NotificationService.java
index e111da95..49543eeb 100644
--- a/src/main/java/eu/siacs/conversations/services/NotificationService.java
+++ b/src/main/java/eu/siacs/conversations/services/NotificationService.java
@@ -134,6 +134,7 @@ public class NotificationService {
 	}
 
 	public void push(final Message message) {
+		mXmppConnectionService.updateUnreadCountBadge();
 		if (!notify(message)) {
 			return;
 		}
diff --git a/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
index 97c52156..0a264dd1 100644
--- a/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
+++ b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
@@ -77,6 +77,7 @@ 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.SerialSingleThreadExecutor;
 import eu.siacs.conversations.utils.Xmlns;
 import eu.siacs.conversations.xml.Element;
 import eu.siacs.conversations.xmpp.OnBindListener;
@@ -100,6 +101,7 @@ 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 me.leolin.shortcutbadger.ShortcutBadger;
 
 public class XmppConnectionService extends Service implements OnPhoneContactsLoadedListener {
 
@@ -118,6 +120,10 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 			startService(intent);
 		}
 	};
+
+	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor();
+	private final SerialSingleThreadExecutor mDatabaseExecutor = new SerialSingleThreadExecutor();
+
 	private final IBinder mBinder = new XmppConnectionBinder();
 	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 	private final FileObserver fileObserver = new FileObserver(
@@ -203,6 +209,18 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 	private IqParser mIqParser = new IqParser(this);
+	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
+		@Override
+		public void onIqPacketReceived(Account account, IqPacket packet) {
+			if (packet.getType() == IqPacket.TYPE.ERROR) {
+				Element error = packet.findChild("error");
+				String text = error != null ? error.findChildContent("text") : null;
+				if (text != null) {
+					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received iq error - "+text);
+				}
+			}
+		}
+	};
 	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 	private List<Account> accounts;
@@ -214,7 +232,8 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 	private OnConversationUpdate mOnConversationUpdate = null;
-	private Integer convChangedListenerCount = 0;
+	private int convChangedListenerCount = 0;
+	private int unreadCount = 0;
 	private OnAccountUpdate mOnAccountUpdate = null;
 	private OnStatusChanged statusListener = new OnStatusChanged() {
 
@@ -359,7 +378,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 				callback.success(message);
 			}
 		} else {
-			new Thread(new Runnable() {
+			mFileAddingExecutor.execute(new Runnable() {
 				@Override
 				public void run() {
 					try {
@@ -374,8 +393,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 						callback.error(e.getResId(),message);
 					}
 				}
-			}).start();
-
+			});
 		}
 	}
 
@@ -391,7 +409,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 		}
 		message.setCounterpart(conversation.getNextCounterpart());
 		message.setType(Message.TYPE_IMAGE);
-		new Thread(new Runnable() {
+		mFileAddingExecutor.execute(new Runnable() {
 
 			@Override
 			public void run() {
@@ -406,7 +424,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 					callback.error(e.getResId(), message);
 				}
 			}
-		}).start();
+		});
 	}
 
 	public Conversation find(Bookmark bookmark) {
@@ -485,8 +503,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 						long pingTimeoutIn = (lastSent + Config.PING_TIMEOUT * 1000) - SystemClock.elapsedRealtime();
 						if (lastSent > lastReceived) {
 							if (pingTimeoutIn < 0) {
-								long age = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000;
-								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout. connection age was: "+age+"s");
+								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 								this.reconnectAccount(account, true);
 							} else {
 								int secs = (int) (pingTimeoutIn / 1000);
@@ -573,7 +590,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 		this.accounts = databaseBackend.getAccounts();
 
 		for (final Account account : this.accounts) {
-			account.initOtrEngine(this);
+			account.initAccountServices(this);
 		}
 		restoreFromDatabase();
 
@@ -902,7 +919,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 		for (Bookmark bookmark : account.getBookmarks()) {
 			storage.addChild(bookmark);
 		}
-		sendIqPacket(account, iqPacket, null);
+		sendIqPacket(account, iqPacket, mDefaultIqHandler);
 	}
 
 	public void onPhoneContactsLoaded(final List<Bundle> phoneContacts) {
@@ -914,7 +931,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 			public void run() {
 				Log.d(Config.LOGTAG,"start merging phone contacts with roster");
 				for (Account account : accounts) {
-					account.getRoster().clearSystemAccounts();
+					List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
 					for (Bundle phoneContact : phoneContacts) {
 						if (Thread.interrupted()) {
 							Log.d(Config.LOGTAG,"interrupted merging phone contacts");
@@ -931,9 +948,18 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 							+ "#"
 							+ phoneContact.getString("lookup");
 						contact.setSystemAccount(systemAccount);
-						contact.setPhotoUri(phoneContact.getString("photouri"));
-						getAvatarService().clear(contact);
+						if (contact.setPhotoUri(phoneContact.getString("photouri"))) {
+							getAvatarService().clear(contact);
+						}
 						contact.setSystemName(phoneContact.getString("displayname"));
+						withSystemAccounts.remove(contact);
+					}
+					for(Contact contact : withSystemAccounts) {
+						contact.setSystemAccount(null);
+						contact.setSystemName(null);
+						if (contact.setPhotoUri(null)) {
+							getAvatarService().clear(contact);
+						}
 					}
 				}
 				Log.d(Config.LOGTAG,"finished merging phone contacts");
@@ -954,7 +980,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 				Account account = accountLookupTable.get(conversation.getAccountUuid());
 				conversation.setAccount(account);
 			}
-			new Thread(new Runnable() {
+			Runnable runnable =new Runnable() {
 				@Override
 				public void run() {
 					Log.d(Config.LOGTAG,"restoring roster");
@@ -975,7 +1001,8 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 					Log.d(Config.LOGTAG,"restored all messages");
 					updateConversationUi();
 				}
-			}).start();
+			};
+			mDatabaseExecutor.execute(runnable);
 		}
 	}
 
@@ -1040,11 +1067,11 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 	}
 
 	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
-		Log.d(Config.LOGTAG,"load more messages for "+conversation.getName() + " prior to "+MessageGenerator.getTimestamp(timestamp));
+		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
 		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation,callback)) {
 			return;
 		}
-		new Thread(new Runnable() {
+		Runnable runnable = new Runnable() {
 			@Override
 			public void run() {
 				final Account account = conversation.getAccount();
@@ -1063,7 +1090,8 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 					callback.informUser(R.string.fetching_history_from_server);
 				}
 			}
-		}).start();
+		};
+		mDatabaseExecutor.execute(runnable);
 	}
 
 	public List<Account> getAccounts() {
@@ -1175,7 +1203,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 	}
 
 	public void createAccount(final Account account) {
-		account.initOtrEngine(this);
+		account.initAccountServices(this);
 		databaseBackend.createAccount(account);
 		this.accounts.add(account);
 		this.reconnectAccountInBackground(account);
@@ -1690,7 +1718,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 			}
 		}
 		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
-		sendIqPacket(conference.getAccount(), request, null);
+		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
 	}
 
 	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
@@ -1834,7 +1862,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
 			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
 			iq.query(Xmlns.ROSTER).addChild(contact.asElement());
-			account.getXmppConnection().sendIqPacket(iq, null);
+			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
 			if (sendUpdates) {
 				sendPresencePacket(account,
 						mPresenceGenerator.sendPresenceUpdatesTo(contact));
@@ -1992,17 +2020,16 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 
 	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
 		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
-		this.sendIqPacket(account,packet,new OnIqPacketReceived() {
+		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
 			@Override
 			public void onIqPacketReceived(Account account, IqPacket packet) {
-				synchronized(mInProgressAvatarFetches) {
-					mInProgressAvatarFetches.remove(generateFetchKey(account,avatar));
+				synchronized (mInProgressAvatarFetches) {
+					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
 				}
 				if (packet.getType() == IqPacket.TYPE.RESULT) {
-					Element vCard = packet.findChild("vCard","vcard-temp");
+					Element vCard = packet.findChild("vCard", "vcard-temp");
 					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
-					Element binval = photo != null ? photo.findChild("BINVAL") : null;
-					String image = binval != null ? binval.getContent() : null;
+					String image = photo != null ? photo.findChildContent("BINVAL") : null;
 					if (image != null) {
 						avatar.image = image;
 						if (getFileBackend().save(avatar)) {
@@ -2065,7 +2092,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 			Element item = iq.query(Xmlns.ROSTER).addChild("item");
 			item.setAttribute("jid", contact.getJid().toString());
 			item.setAttribute("subscription", "remove");
-			account.getXmppConnection().sendIqPacket(iq, null);
+			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
 		}
 	}
 
@@ -2118,7 +2145,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 	}
 
 	public void directInvite(Conversation conversation, Jid jid) {
-		MessagePacket packet = mMessageGenerator.directInvite(conversation,jid);
+		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
 		sendMessagePacket(conversation.getAccount(),packet);
 	}
 
@@ -2262,6 +2289,20 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 	public void markRead(final Conversation conversation) {
 		mNotificationService.clear(conversation);
 		conversation.markRead();
+		updateUnreadCountBadge();
+	}
+
+	public synchronized void updateUnreadCountBadge() {
+		int count = unreadCount();
+		if (unreadCount != count) {
+			Log.d(Config.LOGTAG, "update unread count to " + count);
+			if (count > 0) {
+				ShortcutBadger.with(getApplicationContext()).count(count);
+			} else {
+				ShortcutBadger.with(getApplicationContext()).remove();
+			}
+			unreadCount = count;
+		}
 	}
 
 	public void sendReadMarker(final Conversation conversation) {
@@ -2309,13 +2350,14 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 	}
 
 	public void syncRosterToDisk(final Account account) {
-		new Thread(new Runnable() {
+		Runnable runnable = new Runnable() {
 
 			@Override
 			public void run() {
 				databaseBackend.writeRoster(account.getRoster());
 			}
-		}).start();
+		};
+		mDatabaseExecutor.execute(runnable);
 
 	}
 
diff --git a/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java b/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java
index f7156d7a..c190caed 100644
--- a/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java
@@ -10,6 +10,7 @@ import android.content.SharedPreferences;
 import android.net.Uri;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
+import android.provider.ContactsContract;
 import android.provider.ContactsContract.CommonDataKinds;
 import android.provider.ContactsContract.Contacts;
 import android.provider.ContactsContract.Intents;
@@ -126,14 +127,23 @@ public class ContactDetailsActivity extends XmppActivity implements OnAccountUpd
 
 		@Override
 		public void onClick(View v) {
-			AlertDialog.Builder builder = new AlertDialog.Builder(
-					ContactDetailsActivity.this);
-			builder.setTitle(getString(R.string.action_add_phone_book));
-			builder.setMessage(getString(R.string.add_phone_book_text,
+			if (contact.getSystemAccount() == null) {
+				AlertDialog.Builder builder = new AlertDialog.Builder(
+						ContactDetailsActivity.this);
+				builder.setTitle(getString(R.string.action_add_phone_book));
+				builder.setMessage(getString(R.string.add_phone_book_text,
 						contact.getJid()));
-			builder.setNegativeButton(getString(R.string.cancel), null);
-			builder.setPositiveButton(getString(R.string.add), addToPhonebook);
-			builder.create().show();
+				builder.setNegativeButton(getString(R.string.cancel), null);
+				builder.setPositiveButton(getString(R.string.add), addToPhonebook);
+				builder.create().show();
+			} else {
+					String[] systemAccount = contact.getSystemAccount().split("#");
+					long id = Long.parseLong(systemAccount[0]);
+					Uri uri = ContactsContract.Contacts.getLookupUri(id, systemAccount[1]);
+					Intent intent = new Intent(Intent.ACTION_VIEW);
+					intent.setData(uri);
+					startActivity(intent);
+			}
 		}
 	};
 
@@ -340,12 +350,9 @@ public class ContactDetailsActivity extends XmppActivity implements OnAccountUpd
 		} else {
 			contactJidTv.setText(contact.getJid().toString());
 		}
-		accountJidTv.setText(getString(R.string.using_account, contact
-					.getAccount().getJid().toBareJid()));
-		prepareContactBadge(badge, contact);
-		if (contact.getSystemAccount() == null) {
-			badge.setOnClickListener(onBadgeClick);
-		}
+		accountJidTv.setText(getString(R.string.using_account, contact.getAccount().getJid().toBareJid()));
+		badge.setImageBitmap(avatarService().get(contact, getPixel(72)));
+		badge.setOnClickListener(this.onBadgeClick);
 
 		keys.removeAllViews();
 		boolean hasKeys = false;
@@ -419,15 +426,6 @@ public class ContactDetailsActivity extends XmppActivity implements OnAccountUpd
 		}
 	}
 
-	private void prepareContactBadge(QuickContactBadge badge, Contact contact) {
-		if (contact.getSystemAccount() != null) {
-			String[] systemAccount = contact.getSystemAccount().split("#");
-			long id = Long.parseLong(systemAccount[0]);
-			badge.assignContactUri(Contacts.getLookupUri(id, systemAccount[1]));
-		}
-		badge.setImageBitmap(avatarService().get(contact, getPixel(72)));
-	}
-
 	protected void confirmToDeleteFingerprint(final String fingerprint) {
 		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 		builder.setTitle(R.string.delete_fingerprint);
diff --git a/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java b/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
index d9f56c5d..c48b5865 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
@@ -479,6 +479,9 @@ public class ConversationActivity extends XmppActivity
 			case ATTACHMENT_CHOICE_TAKE_PHOTO:
 				getPreferences().edit().putString("recently_used_quick_action","photo").apply();
 				break;
+			case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
+				getPreferences().edit().putString("recently_used_quick_action","picture").apply();
+				break;
 		}
 		final Conversation conversation = getSelectedConversation();
 		final int encryption = conversation.getNextEncryption(forceEncryption());
diff --git a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
index 02f664db..a817b27b 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
@@ -256,6 +256,9 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 					case RECORD_VOICE:
 						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_RECORD_VOICE);
 						break;
+					case CHOOSE_PICTURE:
+						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_CHOOSE_IMAGE);
+						break;
 					case CANCEL:
 						if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
 							conversation.setNextCounterpart(null);
@@ -818,7 +821,7 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 		updateChatMsgHint();
 	}
 
-	enum SendButtonAction {TEXT, TAKE_PHOTO, SEND_LOCATION, RECORD_VOICE, CANCEL}
+	enum SendButtonAction {TEXT, TAKE_PHOTO, SEND_LOCATION, RECORD_VOICE, CANCEL, CHOOSE_PICTURE}
 
 	private int getSendButtonImageResource(SendButtonAction action, int status) {
 		switch (action) {
@@ -887,6 +890,19 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 					default:
 						return R.drawable.ic_send_cancel_offline;
 				}
+			case CHOOSE_PICTURE:
+				switch (status) {
+					case Presences.CHAT:
+					case Presences.ONLINE:
+						return R.drawable.ic_send_picture_online;
+					case Presences.AWAY:
+						return R.drawable.ic_send_picture_away;
+					case Presences.XA:
+					case Presences.DND:
+						return R.drawable.ic_send_picture_dnd;
+					default:
+						return R.drawable.ic_send_picture_offline;
+				}
 		}
 		return R.drawable.ic_send_text_offline;
 	}
@@ -920,6 +936,9 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 					case "voice":
 						action = SendButtonAction.RECORD_VOICE;
 						break;
+					case "picture":
+						action = SendButtonAction.CHOOSE_PICTURE;
+						break;
 					default:
 						action = SendButtonAction.TEXT;
 						break;
diff --git a/src/main/java/eu/siacs/conversations/utils/DNSHelper.java b/src/main/java/eu/siacs/conversations/utils/DNSHelper.java
index 42dd1c95..bb354ae0 100644
--- a/src/main/java/eu/siacs/conversations/utils/DNSHelper.java
+++ b/src/main/java/eu/siacs/conversations/utils/DNSHelper.java
@@ -20,11 +20,19 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Random;
 import java.util.TreeMap;
+import java.util.regex.Pattern;
 
 import android.os.Bundle;
 import android.util.Log;
 
 public class DNSHelper {
+
+	public static final Pattern PATTERN_IPV4 = Pattern.compile("\\A(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}\\z");
+	public static final Pattern PATTERN_IPV6_HEX4DECCOMPRESSED = Pattern.compile("\\A((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?) ::((?:[0-9A-Fa-f]{1,4}:)*)(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}\\z");
+	public static final Pattern PATTERN_IPV6_6HEX4DEC = Pattern.compile("\\A((?:[0-9A-Fa-f]{1,4}:){6,6})(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}\\z");
+	public static final Pattern PATTERN_IPV6_HEXCOMPRESSED = Pattern.compile("\\A((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)::((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)\\z");
+	public static final Pattern PATTERN_IPV6 = Pattern.compile("\\A(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}\\z");
+
 	protected static Client client = new Client();
 
 	public static Bundle getSRVRecord(final Jid jid) throws IOException {
@@ -37,9 +45,6 @@ public class DNSHelper {
 				Bundle b = queryDNS(host, ip);
 				if (b.containsKey("values")) {
 					return b;
-				} else if (b.containsKey("error")
-						&& "nosrv".equals(b.getString("error", null))) {
-					return b;
 				}
 			}
 		}
@@ -50,113 +55,95 @@ public class DNSHelper {
 		Bundle bundle = new Bundle();
 		try {
 			String qname = "_xmpp-client._tcp." + host;
-			Log.d(Config.LOGTAG,
-					"using dns server: " + dnsServer.getHostAddress()
-							+ " to look up " + host);
-			DNSMessage message = client.query(qname, TYPE.SRV, CLASS.IN,
-					dnsServer.getHostAddress());
-
-			// How should we handle priorities and weight?
-			// Wikipedia has a nice article about priorities vs. weights:
-			// https://en.wikipedia.org/wiki/SRV_record#Provisioning_for_high_service_availability
-
-			// we bucket the SRV records based on priority, pick per priority
-			// a random order respecting the weight, and dump that priority by
-			// priority
+			Log.d(Config.LOGTAG, "using dns server: " + dnsServer.getHostAddress() + " to look up " + host);
+			DNSMessage message = client.query(qname, TYPE.SRV, CLASS.IN, dnsServer.getHostAddress());
 
 			TreeMap<Integer, ArrayList<SRV>> priorities = new TreeMap<>();
 			TreeMap<String, ArrayList<String>> ips4 = new TreeMap<>();
 			TreeMap<String, ArrayList<String>> ips6 = new TreeMap<>();
 
-			for (Record[] rrset : new Record[][] { message.getAnswers(),
-					message.getAdditionalResourceRecords() }) {
+			for (Record[] rrset : new Record[][] { message.getAnswers(), message.getAdditionalResourceRecords() }) {
 				for (Record rr : rrset) {
 					Data d = rr.getPayload();
-					if (d instanceof SRV
-							&& NameUtil.idnEquals(qname, rr.getName())) {
+					if (d instanceof SRV && NameUtil.idnEquals(qname, rr.getName())) {
 						SRV srv = (SRV) d;
 						if (!priorities.containsKey(srv.getPriority())) {
-							priorities.put(srv.getPriority(),
-									new ArrayList<SRV>(2));
+							priorities.put(srv.getPriority(),new ArrayList<SRV>());
 						}
 						priorities.get(srv.getPriority()).add(srv);
 					}
 					if (d instanceof A) {
-						A arecord = (A) d;
+						A a = (A) d;
 						if (!ips4.containsKey(rr.getName())) {
-							ips4.put(rr.getName(), new ArrayList<String>(3));
+							ips4.put(rr.getName(), new ArrayList<String>());
 						}
-						ips4.get(rr.getName()).add(arecord.toString());
+						ips4.get(rr.getName()).add(a.toString());
 					}
 					if (d instanceof AAAA) {
 						AAAA aaaa = (AAAA) d;
 						if (!ips6.containsKey(rr.getName())) {
-							ips6.put(rr.getName(), new ArrayList<String>(3));
+							ips6.put(rr.getName(), new ArrayList<String>());
 						}
 						ips6.get(rr.getName()).add("[" + aaaa.toString() + "]");
 					}
 				}
 			}
 
-			Random rnd = new Random();
-			ArrayList<SRV> result = new ArrayList<>(
-					priorities.size() * 2 + 1);
+			ArrayList<SRV> result = new ArrayList<>();
 			for (ArrayList<SRV> s : priorities.values()) {
-
-				// trivial case
-				if (s.size() <= 1) {
-					result.addAll(s);
-					continue;
-				}
-
-				long totalweight = 0l;
-				for (SRV srv : s) {
-					totalweight += srv.getWeight();
-				}
-
-				while (totalweight > 0l && s.size() > 0) {
-					long p = (rnd.nextLong() & 0x7fffffffffffffffl)
-							% totalweight;
-					int i = 0;
-					while (p > 0) {
-						p -= s.get(i++).getPriority();
-					}
-					if (i>0) i--;
-					// remove is expensive, but we have only a few entries
-					// anyway
-					SRV srv = s.remove(i);
-					totalweight -= srv.getWeight();
-					result.add(srv);
-				}
-
-				Collections.shuffle(s, rnd);
 				result.addAll(s);
-
 			}
 
+			ArrayList<Bundle> values = new ArrayList<>();
 			if (result.size() == 0) {
-				bundle.putString("error", "nosrv");
+				DNSMessage response;
+				response = client.query(host, TYPE.A, CLASS.IN, dnsServer.getHostAddress());
+				for(int i = 0; i < response.getAnswers().length; ++i) {
+					values.add(createNamePortBundle(host,5222,response.getAnswers()[i].getPayload()));
+				}
+				response = client.query(host, TYPE.AAAA, CLASS.IN, dnsServer.getHostAddress());
+				for(int i = 0; i < response.getAnswers().length; ++i) {
+					values.add(createNamePortBundle(host,5222,response.getAnswers()[i].getPayload()));
+				}
+				bundle.putParcelableArrayList("values", values);
 				return bundle;
 			}
-			ArrayList<Bundle> values = new ArrayList<>();
 			for (SRV srv : result) {
 				if (ips6.containsKey(srv.getName())) {
 					values.add(createNamePortBundle(srv.getName(),srv.getPort(),ips6));
+				} else {
+					DNSMessage response = client.query(srv.getName(), TYPE.AAAA, CLASS.IN, dnsServer.getHostAddress());
+					for(int i = 0; i < response.getAnswers().length; ++i) {
+						values.add(createNamePortBundle(srv.getName(),srv.getPort(),response.getAnswers()[i].getPayload()));
+					}
 				}
 				if (ips4.containsKey(srv.getName())) {
 					values.add(createNamePortBundle(srv.getName(),srv.getPort(),ips4));
+				} else {
+					DNSMessage response = client.query(srv.getName(), TYPE.A, CLASS.IN, dnsServer.getHostAddress());
+					for(int i = 0; i < response.getAnswers().length; ++i) {
+						values.add(createNamePortBundle(srv.getName(),srv.getPort(),response.getAnswers()[i].getPayload()));
+					}
 				}
-				values.add(createNamePortBundle(srv.getName(),srv.getPort(),null));
+				values.add(createNamePortBundle(srv.getName(), srv.getPort()));
 			}
 			bundle.putParcelableArrayList("values", values);
 		} catch (SocketTimeoutException e) {
 			bundle.putString("error", "timeout");
 		} catch (Exception e) {
+			Log.d(Config.LOGTAG,e.getMessage());
 			bundle.putString("error", "unhandled");
 		}
 		return bundle;
 	}
 
+	private static Bundle createNamePortBundle(String name, int port) {
+		Bundle namePort = new Bundle();
+		namePort.putString("name", name);
+		namePort.putInt("port", port);
+		return namePort;
+	}
+
 	private static Bundle createNamePortBundle(String name, int port, TreeMap<String, ArrayList<String>> ips) {
 		Bundle namePort = new Bundle();
 		namePort.putString("name", name);
@@ -169,15 +156,23 @@ public class DNSHelper {
 		return namePort;
 	}
 
-	final protected static char[] hexArray = "0123456789ABCDEF".toCharArray();
-
-	public static String bytesToHex(byte[] bytes) {
-		char[] hexChars = new char[bytes.length * 2];
-		for (int j = 0; j < bytes.length; j++) {
-			int v = bytes[j] & 0xFF;
-			hexChars[j * 2] = hexArray[v >>> 4];
-			hexChars[j * 2 + 1] = hexArray[v & 0x0F];
+	private static Bundle createNamePortBundle(String name, int port, Data data) {
+		Bundle namePort = new Bundle();
+		namePort.putString("name", name);
+		namePort.putInt("port", port);
+		if (data instanceof A) {
+			namePort.putString("ip", data.toString());
+		} else if (data instanceof AAAA) {
+			namePort.putString("ip","["+data.toString()+"]");
 		}
-		return new String(hexChars);
+		return namePort;
+	}
+
+	public static boolean isIp(final String server) {
+		return PATTERN_IPV4.matcher(server).matches()
+				|| PATTERN_IPV6.matcher(server).matches()
+				|| PATTERN_IPV6_6HEX4DEC.matcher(server).matches()
+				|| PATTERN_IPV6_HEX4DECCOMPRESSED.matcher(server).matches()
+				|| PATTERN_IPV6_HEXCOMPRESSED.matcher(server).matches();
 	}
 }
diff --git a/src/main/java/eu/siacs/conversations/utils/GeoHelper.java b/src/main/java/eu/siacs/conversations/utils/GeoHelper.java
index b31b9018..74f91a98 100644
--- a/src/main/java/eu/siacs/conversations/utils/GeoHelper.java
+++ b/src/main/java/eu/siacs/conversations/utils/GeoHelper.java
@@ -54,8 +54,14 @@ public class GeoHelper {
 		Intent locationPluginIntent = new Intent("eu.siacs.conversations.location.show");
 		locationPluginIntent.putExtra("latitude",latitude);
 		locationPluginIntent.putExtra("longitude",longitude);
-		if (conversation.getMode() == Conversation.MODE_SINGLE && message.getStatus() == Message.STATUS_RECEIVED) {
-			locationPluginIntent.putExtra("name",conversation.getName());
+		if (conversation.getMode() == Conversation.MODE_SINGLE) {
+			if (message.getStatus() == Message.STATUS_RECEIVED) {
+				locationPluginIntent.putExtra("name",conversation.getName());
+				locationPluginIntent.putExtra("jid",message.getCounterpart().toString());
+			}
+			else {
+				locationPluginIntent.putExtra("jid",conversation.getAccount().getJid().toString());
+			}
 		}
 		intents.add(locationPluginIntent);
 
diff --git a/src/main/java/eu/siacs/conversations/utils/SerialSingleThreadExecutor.java b/src/main/java/eu/siacs/conversations/utils/SerialSingleThreadExecutor.java
new file mode 100644
index 00000000..bfb4668d
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/utils/SerialSingleThreadExecutor.java
@@ -0,0 +1,34 @@
+package eu.siacs.conversations.utils;
+
+import java.util.ArrayDeque;
+import java.util.Queue;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+
+public class SerialSingleThreadExecutor implements Executor {
+
+	final Executor executor = Executors.newSingleThreadExecutor();
+	final Queue<Runnable> tasks = new ArrayDeque();
+	Runnable active;
+
+	public synchronized void execute(final Runnable r) {
+		tasks.offer(new Runnable() {
+			public void run() {
+				try {
+					r.run();
+				} finally {
+					scheduleNext();
+				}
+			}
+		});
+		if (active == null) {
+			scheduleNext();
+		}
+	}
+
+	protected synchronized void scheduleNext() {
+		if ((active =  tasks.poll()) != null) {
+			executor.execute(active);
+		}
+	}
+}
\ No newline at end of file
diff --git a/src/main/java/eu/siacs/conversations/xml/Element.java b/src/main/java/eu/siacs/conversations/xml/Element.java
index 51708759..32657c66 100644
--- a/src/main/java/eu/siacs/conversations/xml/Element.java
+++ b/src/main/java/eu/siacs/conversations/xml/Element.java
@@ -57,6 +57,11 @@ public class Element {
 		return null;
 	}
 
+	public String findChildContent(String name) {
+		Element element = findChild(name);
+		return element == null ? null : element.getContent();
+	}
+
 	public Element findChild(String name, String xmlns) {
 		for (Element child : this.children) {
 			if (child.getName().equals(name)
@@ -67,6 +72,11 @@ public class Element {
 		return null;
 	}
 
+	public String findChildContent(String name, String xmlns) {
+		Element element = findChild(name,xmlns);
+		return element == null ? null : element.getContent();
+	}
+
 	public boolean hasChild(final String name) {
 		return findChild(name) != null;
 	}
diff --git a/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java b/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java
index d52ebee5..8a438906 100644
--- a/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java
+++ b/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java
@@ -26,6 +26,7 @@ import java.net.IDN;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
 import java.net.Socket;
+import java.net.SocketAddress;
 import java.net.UnknownHostException;
 import java.security.KeyManagementException;
 import java.security.NoSuchAlgorithmException;
@@ -155,56 +156,62 @@ public class XmppConnection implements Runnable {
 			tagWriter = new TagWriter();
 			packetCallbacks.clear();
 			this.changeStatus(Account.State.CONNECTING);
-			final Bundle result = DNSHelper.getSRVRecord(account.getServer());
-			final ArrayList<Parcelable> values = result.getParcelableArrayList("values");
-			if ("timeout".equals(result.getString("error"))) {
-				throw new IOException("timeout in dns");
-			} else if (values != null) {
-				int i = 0;
-				boolean socketError = true;
-				while (socketError && values.size() > i) {
-					final Bundle namePort = (Bundle) values.get(i);
-					try {
-						String srvRecordServer;
+			if (DNSHelper.isIp(account.getServer().toString())) {
+				socket = new Socket();
+				try {
+					socket.connect(new InetSocketAddress(account.getServer().toString(), 5222), Config.SOCKET_TIMEOUT * 1000);
+				} catch (IOException e) {
+					throw new UnknownHostException();
+				}
+			} else {
+				final Bundle result = DNSHelper.getSRVRecord(account.getServer());
+				final ArrayList<Parcelable> values = result.getParcelableArrayList("values");
+				if ("timeout".equals(result.getString("error"))) {
+					throw new IOException("timeout in dns");
+				} else if (values != null) {
+					int i = 0;
+					boolean socketError = true;
+					while (socketError && values.size() > i) {
+						final Bundle namePort = (Bundle) values.get(i);
 						try {
-							srvRecordServer = IDN.toASCII(namePort.getString("name"));
-						} catch (final IllegalArgumentException e) {
-							// TODO: Handle me?`
-							srvRecordServer = "";
-						}
-						final int srvRecordPort = namePort.getInt("port");
-						final String srvIpServer = namePort.getString("ip");
-						final InetSocketAddress addr;
-						if (srvIpServer != null) {
-							addr = new InetSocketAddress(srvIpServer, srvRecordPort);
-							Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
-									+ ": using values from dns " + srvRecordServer
-									+ "[" + srvIpServer + "]:" + srvRecordPort);
-						} else {
-							addr = new InetSocketAddress(srvRecordServer, srvRecordPort);
-							Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
-									+ ": using values from dns "
-									+ srvRecordServer + ":" + srvRecordPort);
+							String srvRecordServer;
+							try {
+								srvRecordServer = IDN.toASCII(namePort.getString("name"));
+							} catch (final IllegalArgumentException e) {
+								// TODO: Handle me?`
+								srvRecordServer = "";
+							}
+							final int srvRecordPort = namePort.getInt("port");
+							final String srvIpServer = namePort.getString("ip");
+							final InetSocketAddress addr;
+							if (srvIpServer != null) {
+								addr = new InetSocketAddress(srvIpServer, srvRecordPort);
+								Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
+										+ ": using values from dns " + srvRecordServer
+										+ "[" + srvIpServer + "]:" + srvRecordPort);
+							} else {
+								addr = new InetSocketAddress(srvRecordServer, srvRecordPort);
+								Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
+										+ ": using values from dns "
+										+ srvRecordServer + ":" + srvRecordPort);
+							}
+							socket = new Socket();
+							socket.connect(addr, Config.SOCKET_TIMEOUT * 1000);
+							socketError = false;
+						} catch (final UnknownHostException e) {
+							Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": " + e.getMessage());
+							i++;
+						} catch (final IOException e) {
+							Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": " + e.getMessage());
+							i++;
 						}
-						socket = new Socket();
-						socket.connect(addr, Config.SOCKET_TIMEOUT * 1000);
-						socketError = false;
-					} catch (final UnknownHostException e) {
-						Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": " + e.getMessage());
-						i++;
-					} catch (final IOException e) {
-						Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": " + e.getMessage());
-						i++;
 					}
+					if (socketError) {
+						throw new UnknownHostException();
+					}
+				} else {
+					throw new IOException("unhandled exception in DNS resolver");
 				}
-				if (socketError) {
-					throw new UnknownHostException();
-				}
-			} else if (result.containsKey("error")
-					&& "nosrv".equals(result.getString("error", null))) {
-				socket = new Socket(account.getServer().getDomainpart(), 5222);
-			} else {
-				throw new IOException("unhandled exception in DNS resolver");
 			}
 			final OutputStream out = socket.getOutputStream();
 			tagWriter.setOutputStream(out);
diff --git a/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInbandTransport.java b/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInbandTransport.java
index 29efcf8f..8da53c1b 100644
--- a/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInbandTransport.java
+++ b/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInbandTransport.java
@@ -160,13 +160,18 @@ public class JingleInbandTransport extends JingleTransport {
 		byte[] buffer = new byte[this.bufferSize];
 		try {
 			int count = fileInputStream.read(buffer);
-			this.remainingSize -= count;
-			if (count != buffer.length && count != -1) {
+			if (count == -1) {
+				file.setSha1Sum(CryptoHelper.bytesToHex(digest.digest()));
+				this.onFileTransmissionStatusChanged.onFileTransmitted(file);
+				fileInputStream.close();
+				return;
+			} else if (count != buffer.length) {
 				int rem = fileInputStream.read(buffer,count,buffer.length-count);
 				if (rem > 0) {
 					count += rem;
 				}
 			}
+			this.remainingSize -= count;
 			this.digest.update(buffer,0,count);
 			String base64 = Base64.encodeToString(buffer,0,count, Base64.NO_WRAP);
 			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
diff --git a/src/main/java/eu/siacs/conversations/xmpp/pep/Avatar.java b/src/main/java/eu/siacs/conversations/xmpp/pep/Avatar.java
index 04d55bbe..74da6a9b 100644
--- a/src/main/java/eu/siacs/conversations/xmpp/pep/Avatar.java
+++ b/src/main/java/eu/siacs/conversations/xmpp/pep/Avatar.java
@@ -83,8 +83,7 @@ public class Avatar {
 	}
 
 	public static Avatar parsePresence(Element x) {
-		Element photo = x != null ? x.findChild("photo") : null;
-		String hash = photo != null ? photo.getContent() : null;
+		String hash = x == null ? null : x.findChildContent("photo");
 		if (hash == null) {
 			return null;
 		}
diff --git a/src/main/java/eu/siacs/conversations/xmpp/stanzas/AbstractStanza.java b/src/main/java/eu/siacs/conversations/xmpp/stanzas/AbstractStanza.java
index 55256ece..bd706b57 100644
--- a/src/main/java/eu/siacs/conversations/xmpp/stanzas/AbstractStanza.java
+++ b/src/main/java/eu/siacs/conversations/xmpp/stanzas/AbstractStanza.java
@@ -51,4 +51,8 @@ public class AbstractStanza extends Element {
 			|| getTo().equals(account.getJid().toBareJid())
 			|| getTo().equals(account.getJid());
 	}
+
+	public boolean fromAccount(final Account account) {
+		return getFrom() != null && getFrom().toBareJid().equals(account.getJid().toBareJid());
+	}
 }
diff --git a/src/main/java/eu/siacs/conversations/xmpp/stanzas/MessagePacket.java b/src/main/java/eu/siacs/conversations/xmpp/stanzas/MessagePacket.java
index 93aaa68c..e32811af 100644
--- a/src/main/java/eu/siacs/conversations/xmpp/stanzas/MessagePacket.java
+++ b/src/main/java/eu/siacs/conversations/xmpp/stanzas/MessagePacket.java
@@ -1,5 +1,10 @@
 package eu.siacs.conversations.xmpp.stanzas;
 
+import android.util.Pair;
+
+import java.text.ParseException;
+
+import eu.siacs.conversations.parser.AbstractParser;
 import eu.siacs.conversations.xml.Element;
 
 public class MessagePacket extends AbstractStanza {
@@ -14,12 +19,7 @@ public class MessagePacket extends AbstractStanza {
 	}
 
 	public String getBody() {
-		Element body = this.findChild("body");
-		if (body != null) {
-			return body.getContent();
-		} else {
-			return null;
-		}
+		return findChildContent("body");
 	}
 
 	public void setBody(String text) {
@@ -66,4 +66,31 @@ public class MessagePacket extends AbstractStanza {
 			return TYPE_NORMAL;
 		}
 	}
+
+	public Pair<MessagePacket,Long> getForwardedMessagePacket(String name, String namespace) {
+		Element wrapper = findChild(name, namespace);
+		if (wrapper == null) {
+			return null;
+		}
+		Element forwarded = wrapper.findChild("forwarded", "urn:xmpp:forward:0");
+		if (forwarded == null) {
+			return null;
+		}
+		MessagePacket packet = create(forwarded.findChild("message"));
+		if (packet == null) {
+			return null;
+		}
+		Long timestamp = AbstractParser.getTimestamp(forwarded,null);
+		return new Pair(packet,timestamp);
+	}
+
+	public static MessagePacket create(Element element) {
+		if (element == null) {
+			return null;
+		}
+		MessagePacket packet = new MessagePacket();
+		packet.setAttributes(element.getAttributes());
+		packet.setChildren(element.getChildren());
+		return packet;
+	}
 }
diff --git a/src/main/res/drawable-hdpi/ic_send_picture_away.png b/src/main/res/drawable-hdpi/ic_send_picture_away.png
new file mode 100644
index 00000000..09d1c7b7
--- /dev/null
+++ b/src/main/res/drawable-hdpi/ic_send_picture_away.png
diff --git a/src/main/res/drawable-hdpi/ic_send_picture_dnd.png b/src/main/res/drawable-hdpi/ic_send_picture_dnd.png
new file mode 100644
index 00000000..77964b5b
--- /dev/null
+++ b/src/main/res/drawable-hdpi/ic_send_picture_dnd.png
diff --git a/src/main/res/drawable-hdpi/ic_send_picture_offline.png b/src/main/res/drawable-hdpi/ic_send_picture_offline.png
new file mode 100644
index 00000000..28135e25
--- /dev/null
+++ b/src/main/res/drawable-hdpi/ic_send_picture_offline.png
diff --git a/src/main/res/drawable-hdpi/ic_send_picture_online.png b/src/main/res/drawable-hdpi/ic_send_picture_online.png
new file mode 100644
index 00000000..feb926c6
--- /dev/null
+++ b/src/main/res/drawable-hdpi/ic_send_picture_online.png
diff --git a/src/main/res/drawable-mdpi/ic_send_picture_away.png b/src/main/res/drawable-mdpi/ic_send_picture_away.png
new file mode 100644
index 00000000..d3ebca53
--- /dev/null
+++ b/src/main/res/drawable-mdpi/ic_send_picture_away.png
diff --git a/src/main/res/drawable-mdpi/ic_send_picture_dnd.png b/src/main/res/drawable-mdpi/ic_send_picture_dnd.png
new file mode 100644
index 00000000..1d293f20
--- /dev/null
+++ b/src/main/res/drawable-mdpi/ic_send_picture_dnd.png
diff --git a/src/main/res/drawable-mdpi/ic_send_picture_offline.png b/src/main/res/drawable-mdpi/ic_send_picture_offline.png
new file mode 100644
index 00000000..95d5621e
--- /dev/null
+++ b/src/main/res/drawable-mdpi/ic_send_picture_offline.png
diff --git a/src/main/res/drawable-mdpi/ic_send_picture_online.png b/src/main/res/drawable-mdpi/ic_send_picture_online.png
new file mode 100644
index 00000000..be4194d3
--- /dev/null
+++ b/src/main/res/drawable-mdpi/ic_send_picture_online.png
diff --git a/src/main/res/drawable-xhdpi/ic_send_picture_away.png b/src/main/res/drawable-xhdpi/ic_send_picture_away.png
new file mode 100644
index 00000000..f9aa21dc
--- /dev/null
+++ b/src/main/res/drawable-xhdpi/ic_send_picture_away.png
diff --git a/src/main/res/drawable-xhdpi/ic_send_picture_dnd.png b/src/main/res/drawable-xhdpi/ic_send_picture_dnd.png
new file mode 100644
index 00000000..95e4acce
--- /dev/null
+++ b/src/main/res/drawable-xhdpi/ic_send_picture_dnd.png
diff --git a/src/main/res/drawable-xhdpi/ic_send_picture_offline.png b/src/main/res/drawable-xhdpi/ic_send_picture_offline.png
new file mode 100644
index 00000000..75ff2fc4
--- /dev/null
+++ b/src/main/res/drawable-xhdpi/ic_send_picture_offline.png
diff --git a/src/main/res/drawable-xhdpi/ic_send_picture_online.png b/src/main/res/drawable-xhdpi/ic_send_picture_online.png
new file mode 100644
index 00000000..0f68d5f5
--- /dev/null
+++ b/src/main/res/drawable-xhdpi/ic_send_picture_online.png
diff --git a/src/main/res/drawable-xxhdpi/ic_send_picture_away.png b/src/main/res/drawable-xxhdpi/ic_send_picture_away.png
new file mode 100644
index 00000000..7898ed4f
--- /dev/null
+++ b/src/main/res/drawable-xxhdpi/ic_send_picture_away.png
diff --git a/src/main/res/drawable-xxhdpi/ic_send_picture_dnd.png b/src/main/res/drawable-xxhdpi/ic_send_picture_dnd.png
new file mode 100644
index 00000000..ccffabbe
--- /dev/null
+++ b/src/main/res/drawable-xxhdpi/ic_send_picture_dnd.png
diff --git a/src/main/res/drawable-xxhdpi/ic_send_picture_offline.png b/src/main/res/drawable-xxhdpi/ic_send_picture_offline.png
new file mode 100644
index 00000000..7b5687e4
--- /dev/null
+++ b/src/main/res/drawable-xxhdpi/ic_send_picture_offline.png
diff --git a/src/main/res/drawable-xxhdpi/ic_send_picture_online.png b/src/main/res/drawable-xxhdpi/ic_send_picture_online.png
new file mode 100644
index 00000000..82eab70c
--- /dev/null
+++ b/src/main/res/drawable-xxhdpi/ic_send_picture_online.png
diff --git a/src/main/res/drawable-xxxhdpi/ic_send_picture_away.png b/src/main/res/drawable-xxxhdpi/ic_send_picture_away.png
new file mode 100644
index 00000000..1daa8ecc
--- /dev/null
+++ b/src/main/res/drawable-xxxhdpi/ic_send_picture_away.png
diff --git a/src/main/res/drawable-xxxhdpi/ic_send_picture_dnd.png b/src/main/res/drawable-xxxhdpi/ic_send_picture_dnd.png
new file mode 100644
index 00000000..d8257aad
--- /dev/null
+++ b/src/main/res/drawable-xxxhdpi/ic_send_picture_dnd.png
diff --git a/src/main/res/drawable-xxxhdpi/ic_send_picture_offline.png b/src/main/res/drawable-xxxhdpi/ic_send_picture_offline.png
new file mode 100644
index 00000000..d487709b
--- /dev/null
+++ b/src/main/res/drawable-xxxhdpi/ic_send_picture_offline.png
diff --git a/src/main/res/drawable-xxxhdpi/ic_send_picture_online.png b/src/main/res/drawable-xxxhdpi/ic_send_picture_online.png
new file mode 100644
index 00000000..c095d795
--- /dev/null
+++ b/src/main/res/drawable-xxxhdpi/ic_send_picture_online.png
diff --git a/src/main/res/values-bg/strings.xml b/src/main/res/values-bg/strings.xml
index b27481dd..52bb0054 100644
--- a/src/main/res/values-bg/strings.xml
+++ b/src/main/res/values-bg/strings.xml
@@ -446,4 +446,9 @@
     <item quantity="one">Изберете %d контакт</item>
     <item quantity="other">Изберете %d контакта</item>
   </plurals>
+  <string name="pref_quick_action_summary">Замяна на бутона за изпращане с бързо действие</string>
+  <string name="pref_quick_action">Бързо действие</string>
+  <string name="none">Нищо</string>
+  <string name="recently_used">Използвани наскоро</string>
+  <string name="choose_quick_action">Изберете бързо действие</string>
 </resources>
diff --git a/src/main/res/values-ca@valencia/strings.xml b/src/main/res/values-ca@valencia/strings.xml
deleted file mode 100644
index c757504a..00000000
--- a/src/main/res/values-ca@valencia/strings.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-<?xml version='1.0' encoding='UTF-8'?>
-<resources/>
diff --git a/src/main/res/values-cs/strings.xml b/src/main/res/values-cs/strings.xml
index f49cb1b9..c199ec76 100644
--- a/src/main/res/values-cs/strings.xml
+++ b/src/main/res/values-cs/strings.xml
@@ -448,4 +448,9 @@
     <item quantity="few">Vybrat %d kontakty</item>
     <item quantity="other">Vybrat %d kontaktů</item>
   </plurals>
+  <string name="pref_quick_action_summary">Nahradit tlačítko odeslání rychlou akcí</string>
+  <string name="pref_quick_action">Rychlá akce</string>
+  <string name="none">Žádná</string>
+  <string name="recently_used">Naposledy použitá</string>
+  <string name="choose_quick_action">Vybrat rychlou akci</string>
 </resources>
diff --git a/src/main/res/values-de/strings.xml b/src/main/res/values-de/strings.xml
index 08b0d4a5..000c253b 100644
--- a/src/main/res/values-de/strings.xml
+++ b/src/main/res/values-de/strings.xml
@@ -446,4 +446,9 @@
     <item quantity="one">%d Kontakt ausgewählt</item>
     <item quantity="other">%d Kontakte ausgewählt</item>
   </plurals>
+  <string name="pref_quick_action_summary">Ersetze Absende-Knopf durch Schnell-Tasten</string>
+  <string name="pref_quick_action">Schnell-Tasten</string>
+  <string name="none">keine</string>
+  <string name="recently_used">zuletzt verwendet</string>
+  <string name="choose_quick_action">wähle Schnell-Taste</string>
 </resources>
diff --git a/src/main/res/values-es/strings.xml b/src/main/res/values-es/strings.xml
index 109715e3..880ee66b 100644
--- a/src/main/res/values-es/strings.xml
+++ b/src/main/res/values-es/strings.xml
@@ -446,4 +446,9 @@
     <item quantity="one">Seleccionado %d contacto</item>
     <item quantity="other">Seleccionados %d contactos</item>
   </plurals>
+  <string name="pref_quick_action_summary">Cambiar el botón de enviar por botón de acción rápida</string>
+  <string name="pref_quick_action">Acción Rápida</string>
+  <string name="none">Ninguna</string>
+  <string name="recently_used">Usada más recientemente</string>
+  <string name="choose_quick_action">Elegir acción rápida</string>
 </resources>
diff --git a/src/main/res/values-eu/strings.xml b/src/main/res/values-eu/strings.xml
index ac66bfc1..b594c069 100644
--- a/src/main/res/values-eu/strings.xml
+++ b/src/main/res/values-eu/strings.xml
@@ -446,4 +446,9 @@
     <item quantity="one">Hautatu kontaktu %d</item>
     <item quantity="other">Hautatu %d kontaktu</item>
   </plurals>
+  <string name="pref_quick_action_summary">Bidaltze botoia ekintza azkar batekin aldatu</string>
+  <string name="pref_quick_action">Ekintza azkarra</string>
+  <string name="none">Bat ere ez</string>
+  <string name="recently_used">Azkenengo aldiz erabilitakoa</string>
+  <string name="choose_quick_action">Ekintza azkarra aukeratu</string>
 </resources>
diff --git a/src/main/res/values-id/strings.xml b/src/main/res/values-id/strings.xml
index 69bd0911..3ce9cc82 100644
--- a/src/main/res/values-id/strings.xml
+++ b/src/main/res/values-id/strings.xml
@@ -444,4 +444,9 @@
   <plurals name="select_contact">
     <item quantity="other">Pilih %d kontak</item>
   </plurals>
+  <string name="pref_quick_action_summary">Timpa tombol kirim dengan aksi cepat</string>
+  <string name="pref_quick_action">Aksi Cepat</string>
+  <string name="none">Tak satupun</string>
+  <string name="recently_used">Maling sering digunakan</string>
+  <string name="choose_quick_action">Pilih aksi cepat</string>
 </resources>
diff --git a/src/main/res/values-ja/strings.xml b/src/main/res/values-ja/strings.xml
index 35fb5472..38735f39 100644
--- a/src/main/res/values-ja/strings.xml
+++ b/src/main/res/values-ja/strings.xml
@@ -444,4 +444,9 @@
   <plurals name="select_contact">
     <item quantity="other">%d 連絡先を選択</item>
   </plurals>
+  <string name="pref_quick_action_summary">送信ボタンをクイックアクションで置き換えます</string>
+  <string name="pref_quick_action">クイックアクション</string>
+  <string name="none">なし</string>
+  <string name="recently_used">最近使用した</string>
+  <string name="choose_quick_action">クイックアクションの選択</string>
 </resources>
diff --git a/src/main/res/values-ko/strings.xml b/src/main/res/values-ko/strings.xml
index d00ab0fd..9354c432 100644
--- a/src/main/res/values-ko/strings.xml
+++ b/src/main/res/values-ko/strings.xml
@@ -444,4 +444,9 @@
   <plurals name="select_contact">
     <item quantity="other">%d 연락처 선택 </item>
   </plurals>
+  <string name="pref_quick_action_summary">전송 버튼을 빠른 동작 버튼으로 교체</string>
+  <string name="pref_quick_action">빠른 동작</string>
+  <string name="none">없음</string>
+  <string name="recently_used">최근 사용된 항목</string>
+  <string name="choose_quick_action">빠른 동작 선택</string>
 </resources>
diff --git a/src/main/res/values-nl/strings.xml b/src/main/res/values-nl/strings.xml
index 2532130d..e3f0e69b 100644
--- a/src/main/res/values-nl/strings.xml
+++ b/src/main/res/values-nl/strings.xml
@@ -446,4 +446,9 @@
     <item quantity="one">Selecteer %d contact</item>
     <item quantity="other">Selecteer %d contacten</item>
   </plurals>
+  <string name="pref_quick_action_summary">Vervang verzendknop door snelle actie</string>
+  <string name="pref_quick_action">Snelle actie</string>
+  <string name="none">Geen</string>
+  <string name="recently_used">Recent gebruikt</string>
+  <string name="choose_quick_action">Kies snelle actie</string>
 </resources>
diff --git a/src/main/res/values-pl/strings.xml b/src/main/res/values-pl/strings.xml
index 70c3a49d..6a983f50 100644
--- a/src/main/res/values-pl/strings.xml
+++ b/src/main/res/values-pl/strings.xml
@@ -448,4 +448,9 @@
     <item quantity="few">%d kontakty wybrane</item>
     <item quantity="other">%d kontaktów wybranych</item>
   </plurals>
+  <string name="pref_quick_action_summary">Zastąp przycisk wysyłania szybką akcją</string>
+  <string name="pref_quick_action">Szybka akcja</string>
+  <string name="none">Brak</string>
+  <string name="recently_used">Ostatnio używana</string>
+  <string name="choose_quick_action">Wybierz szybką akcję</string>
 </resources>
diff --git a/src/main/res/values-sr/strings.xml b/src/main/res/values-sr/strings.xml
index ea5cbdb8..60f2e586 100644
--- a/src/main/res/values-sr/strings.xml
+++ b/src/main/res/values-sr/strings.xml
@@ -448,4 +448,9 @@
     <item quantity="few">Изабери %d контакта</item>
     <item quantity="other">Изабери %d контаката</item>
   </plurals>
+  <string name="pref_quick_action_summary">Замени дугме за слање брзом радњом</string>
+  <string name="pref_quick_action">Брза радња</string>
+  <string name="none">Ниједна</string>
+  <string name="recently_used">Недавно коришћена</string>
+  <string name="choose_quick_action">Изаберите брзу радњу</string>
 </resources>
diff --git a/src/main/res/values-sv/strings.xml b/src/main/res/values-sv/strings.xml
index 4f84110b..9c60db53 100644
--- a/src/main/res/values-sv/strings.xml
+++ b/src/main/res/values-sv/strings.xml
@@ -446,4 +446,9 @@
     <item quantity="one">Välj %d kontakt</item>
     <item quantity="other">Välj %d kontakter</item>
   </plurals>
+  <string name="pref_quick_action_summary">Byt sänd-knappen mot snabbfunktion</string>
+  <string name="pref_quick_action">Snabbfunktion</string>
+  <string name="none">Ingen</string>
+  <string name="recently_used">Senast använd</string>
+  <string name="choose_quick_action">Välj snabbfunktion</string>
 </resources>
diff --git a/src/main/res/values-zh-rCN/strings.xml b/src/main/res/values-zh-rCN/strings.xml
index 2f80e064..e194bffd 100644
--- a/src/main/res/values-zh-rCN/strings.xml
+++ b/src/main/res/values-zh-rCN/strings.xml
@@ -444,4 +444,9 @@
   <plurals name="select_contact">
     <item quantity="other">选择 %d 个联系人</item>
   </plurals>
+  <string name="pref_quick_action_summary">以快速动作替代发送按钮</string>
+  <string name="pref_quick_action">快速动作</string>
+  <string name="none">无</string>
+  <string name="recently_used">最近使用过的</string>
+  <string name="choose_quick_action">选择快速动作</string>
 </resources>
diff --git a/src/main/res/values/arrays.xml b/src/main/res/values/arrays.xml
index fec077cc..5be352d1 100644
--- a/src/main/res/values/arrays.xml
+++ b/src/main/res/values/arrays.xml
@@ -44,6 +44,7 @@
 		<item>@string/none</item>
 		<item>@string/recently_used</item>
 		<item>@string/attach_take_picture</item>
+		<item>@string/attach_choose_picture</item>
 		<item>@string/attach_record_voice</item>
 		<item>@string/send_location</item>
 	</string-array>
@@ -52,6 +53,7 @@
 		<item>none</item>
 		<item>recent</item>
 		<item>photo</item>
+		<item>picture</item>
 		<item>voice</item>
 		<item>location</item>
 	</string-array>