1package eu.siacs.conversations.parser;
 2
 3
 4import java.text.ParseException;
 5import java.text.SimpleDateFormat;
 6import java.util.Date;
 7import java.util.Locale;
 8
 9import eu.siacs.conversations.entities.Account;
10import eu.siacs.conversations.entities.Contact;
11import eu.siacs.conversations.services.XmppConnectionService;
12import eu.siacs.conversations.xml.Element;
13import eu.siacs.conversations.xmpp.jid.Jid;
14import eu.siacs.conversations.xmpp.stanzas.AbstractStanza;
15
16public abstract class AbstractParser {
17
18	protected XmppConnectionService mXmppConnectionService;
19
20	protected AbstractParser(XmppConnectionService service) {
21		this.mXmppConnectionService = service;
22	}
23
24	public static Long getTimestamp(Element element, Long defaultValue) {
25		Element delay = element.findChild("delay","urn:xmpp:delay");
26		if (delay != null) {
27			String stamp = delay.getAttribute("stamp");
28			if (stamp != null) {
29				try {
30					return AbstractParser.parseTimestamp(delay.getAttribute("stamp")).getTime();
31				} catch (ParseException e) {
32					return defaultValue;
33				}
34			}
35		}
36		return defaultValue;
37	}
38
39	protected long getTimestamp(Element packet) {
40		return getTimestamp(packet,System.currentTimeMillis());
41	}
42
43	public static Date parseTimestamp(String timestamp) throws ParseException {
44		timestamp = timestamp.replace("Z", "+0000");
45		SimpleDateFormat dateFormat;
46		timestamp = timestamp.substring(0,19)+timestamp.substring(timestamp.length() -5,timestamp.length());
47		dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ",Locale.US);
48		return dateFormat.parse(timestamp);
49	}
50
51	protected void updateLastseen(long timestamp, final Account account, final Jid from) {
52		final String presence = from == null || from.isBareJid() ? "" : from.getResourcepart();
53		final Contact contact = account.getRoster().getContact(from);
54		if (timestamp >= contact.lastseen.time) {
55			contact.lastseen.time = timestamp;
56			if (!presence.isEmpty()) {
57				contact.lastseen.presence = presence;
58			}
59		}
60	}
61
62	protected String avatarData(Element items) {
63		Element item = items.findChild("item");
64		if (item == null) {
65			return null;
66		}
67		return item.findChildContent("data", "urn:xmpp:avatar:data");
68	}
69}