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-rw-r--r--src/main/java/eu/siacs/conversations/parser/AbstractParser.java104
1 files changed, 104 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/parser/AbstractParser.java b/src/main/java/eu/siacs/conversations/parser/AbstractParser.java
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+++ b/src/main/java/eu/siacs/conversations/parser/AbstractParser.java
@@ -0,0 +1,104 @@
+package eu.siacs.conversations.parser;
+
+import android.util.Log;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Locale;
+
+import javax.xml.datatype.DatatypeConfigurationException;
+import javax.xml.datatype.DatatypeFactory;
+
+import eu.siacs.conversations.entities.Account;
+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 {
+
+ protected XmppConnectionService mXmppConnectionService;
+
+ protected AbstractParser(XmppConnectionService service) {
+ this.mXmppConnectionService = service;
+ }
+
+ /**
+ * Gets the timestamp from the 'delay' element.
+ * Refer to XEP-0203: Delayed Delivery for details. @link{http://xmpp.org/extensions/xep-0203.html}
+ * @param packet the element to find the child element 'delay' in.
+ * @return the time in milli seconds of the attribute 'stamp' of the
+ * element 'delay'. In case there is no 'delay' element or no 'stamp'
+ * attribute or the current time is less than the value of the 'stamp'
+ * attribute the current time is returned.
+ */
+ 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());
+ }
+
+ /**
+ * Parses the timestamp according to XEP-0082: XMPP Date and Time Profiles.
+ * @link{http://xmpp.org/extensions/xep-0082.html}
+ *
+ * @param timestamp the timestamp to parse
+ * @return Date
+ * @throws ParseException
+ */
+ public static Date parseTimestamp(String timestamp) throws ParseException {
+ /*try {
+ Logging.d("TIMESTAMP", timestamp);
+ return DatatypeFactory.newInstance().newXMLGregorianCalendar(timestamp).toGregorianCalendar().getTime();
+ } catch (DatatypeConfigurationException e) {
+ Logging.d("TIMESTAMP", e.getMessage());
+ return new Date();
+ }*/
+ timestamp = timestamp.replace("Z", "+0000");
+ SimpleDateFormat dateFormat;
+ timestamp = timestamp.substring(0,19)+timestamp.substring(timestamp.length() -5,timestamp.length());
+ 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,
+ final boolean presenceOverwrite) {
+ final Jid from = packet.getAttributeAsJid("from");
+ updateLastseen(packet, account, from, 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);
+ if (timestamp >= contact.lastseen.time) {
+ contact.lastseen.time = timestamp;
+ if (!presence.isEmpty() && presenceOverwrite) {
+ contact.lastseen.presence = presence;
+ }
+ }
+ }
+
+ protected String avatarData(Element items) {
+ Element item = items.findChild("item");
+ if (item == null) {
+ return null;
+ }
+ return item.findChildContent("data", "urn:xmpp:avatar:data");
+ }
+}