store last message received date in conversation

src/main/java/eu/siacs/conversations/entities/Conversation.java

@@ -43,6 +43,7 @@ public class Conversation extends AbstractEntity {
 	public static final String ATTRIBUTE_NEXT_ENCRYPTION = "next_encryption";
 	public static final String ATTRIBUTE_MUC_PASSWORD = "muc_password";
 	public static final String ATTRIBUTE_MUTED_TILL = "muted_till";
+	public static final String ATTRIBUTE_LAST_MESSAGE_RECEIVED = "last_message_received";
 
 	private String name;
 	private String contactUuid;
@@ -470,6 +471,14 @@ public class Conversation extends AbstractEntity {
 		}
 	}
 
+	public void setLastMessageReceived(long value) {
+		this.setAttribute(ATTRIBUTE_LAST_MESSAGE_RECEIVED, String.valueOf(value));
+	}
+
+	public long getLastMessageReceived() {
+		return getLongAttribute(ATTRIBUTE_LAST_MESSAGE_RECEIVED,0);
+	}
+
 	public void setMutedTill(long value) {
 		this.setAttribute(ATTRIBUTE_MUTED_TILL, String.valueOf(value));
 	}

src/main/java/eu/siacs/conversations/generator/AbstractGenerator.java

@@ -4,9 +4,12 @@ import android.util.Base64;
 
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
+import java.text.SimpleDateFormat;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
+import java.util.Locale;
+import java.util.TimeZone;
 
 import eu.siacs.conversations.services.XmppConnectionService;
 
@@ -23,6 +26,8 @@ public abstract class AbstractGenerator {
 	public final String IDENTITY_NAME = "Conversations 0.9.3";
 	public final String IDENTITY_TYPE = "phone";
 
+	private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
+
 	protected XmppConnectionService mXmppConnectionService;
 
 	protected AbstractGenerator(XmppConnectionService service) {
@@ -46,4 +51,9 @@ public abstract class AbstractGenerator {
 		byte[] sha1 = md.digest(s.toString().getBytes());
 		return new String(Base64.encode(sha1, Base64.DEFAULT)).trim();
 	}
+
+	public static String getTimestamp(long time) {
+		DATE_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
+		return DATE_FORMAT.format(time);
+	}
 }

src/main/java/eu/siacs/conversations/parser/AbstractParser.java

@@ -24,40 +24,31 @@ public abstract class AbstractParser {
 
 	protected long getTimestamp(Element packet) {
 		long now = System.currentTimeMillis();
-		ArrayList<String> stamps = new ArrayList<>();
+		Element delay = packet.findChild("delay");
-		for (Element child : packet.getChildren()) {
+		if (delay == null) {
-			if (child.getName().equals("delay")) {
-				stamps.add(child.getAttribute("stamp").replace("Z", "+0000"));
-			}
-		}
-		Collections.sort(stamps);
-		if (stamps.size() >= 1) {
-			try {
-				String stamp = stamps.get(stamps.size() - 1);
-				if (stamp.contains(".")) {
-					Date date = new SimpleDateFormat(
-							"yyyy-MM-dd'T'HH:mm:ss.SSSZ", Locale.US)
-							.parse(stamp);
-					if (now < date.getTime()) {
-						return now;
-					} else {
-						return date.getTime();
-					}
-				} else {
-					Date date = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ",
-							Locale.US).parse(stamp);
-					if (now < date.getTime()) {
-						return now;
-					} else {
-						return date.getTime();
-					}
-				}
-			} catch (ParseException e) {
-				return now;
-			}
-		} else {
 			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 Date parseTimestamp(String timestamp) throws ParseException {
+		timestamp = timestamp.replace("Z", "+0000");
+		SimpleDateFormat dateFormat;
+		if (timestamp.contains(".")) {
+			dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ", Locale.US);
+		} else {
+			dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ",Locale.US);
+		}
+		return dateFormat.parse(timestamp);
 	}
 
 	protected void updateLastseen(final Element packet, final Account account,
@@ -66,8 +57,7 @@ public abstract class AbstractParser {
         try {
             from = Jid.fromString(packet.getAttribute("from")).toBareJid();
         } catch (final InvalidJidException e) {
-            // TODO: Handle this?
+			return;
-            from = null;
         }
         String presence = from == null || from.isBareJid() ? "" : from.getResourcepart();
 		Contact contact = account.getRoster().getContact(from);

src/main/java/eu/siacs/conversations/parser/MessageParser.java

@@ -14,7 +14,6 @@ import eu.siacs.conversations.services.XmppConnectionService;
 import eu.siacs.conversations.utils.CryptoHelper;
 import eu.siacs.conversations.xml.Element;
 import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
-import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 import eu.siacs.conversations.xmpp.jid.Jid;
 import eu.siacs.conversations.xmpp.pep.Avatar;
 import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
@@ -487,6 +486,8 @@ public class MessageParser extends AbstractParser implements
 		}
 		Conversation conversation = message.getConversation();
 		conversation.add(message);
+		conversation.setLastMessageReceived(System.currentTimeMillis());
+		mXmppConnectionService.updateConversation(conversation);
 
 		if (message.getStatus() == Message.STATUS_RECEIVED
 				&& conversation.getOtrSession() != null

src/main/java/eu/siacs/conversations/services/XmppConnectionService.java

@@ -32,20 +32,14 @@ import net.java.otr4j.session.SessionStatus;
 import org.openintents.openpgp.util.OpenPgpApi;
 import org.openintents.openpgp.util.OpenPgpServiceConnection;
 
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.OutputStream;
 import java.math.BigInteger;
 import java.security.SecureRandom;
-import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
-import java.util.Date;
 import java.util.Hashtable;
 import java.util.List;
 import java.util.Locale;
-import java.util.TimeZone;
 import java.util.concurrent.CopyOnWriteArrayList;
 
 import de.duenndns.ssl.MemorizingTrustManager;
@@ -1251,27 +1245,17 @@ public class XmppConnectionService extends Service {
 			PresencePacket packet = new PresencePacket();
 			packet.setFrom(conversation.getAccount().getJid());
 			packet.setTo(joinJid);
-			Element x = new Element("x");
+			Element x = packet.addChild("x","http://jabber.org/protocol/muc");
-			x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
 			if (conversation.getMucOptions().getPassword() != null) {
-				Element password = x.addChild("password");
+				x.addChild("password").setContent(conversation.getMucOptions().getPassword());
-				password.setContent(conversation.getMucOptions().getPassword());
 			}
+			x.addChild("history").setAttribute("since",PresenceGenerator.getTimestamp(conversation.getLastMessageReceived()));
 			String sig = account.getPgpSignature();
 			if (sig != null) {
 				packet.addChild("status").setContent("online");
 				packet.addChild("x", "jabber:x:signed").setContent(sig);
 			}
-			if (conversation.getMessages().size() != 0) {
+			Log.d(Config.LOGTAG,packet.toString());
-				final SimpleDateFormat mDateFormat = new SimpleDateFormat(
-						"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
-				mDateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
-				Date date = new Date(conversation.getLatestMessage()
-						.getTimeSent() + 1000);
-				x.addChild("history").setAttribute("since",
-						mDateFormat.format(date));
-			}
-			packet.addChild(x);
 			sendPresencePacket(account, packet);
 			if (!joinJid.equals(conversation.getContactJid())) {
 				conversation.setContactJid(joinJid);