/**
* Remove records telling what entity caps node a contact has.
*
* @param contact the contact
*/
public void removeContactCapsNode(Contact contact) {
Caps caps = null;
String lastRemovedJid = null;
Iterator<String> iter = userCaps.keySet().iterator();
while (iter.hasNext()) {
String jid = iter.next();
if (StringUtils.parseBareAddress(jid).equals(contact.getAddress())) {
caps = userCaps.get(jid);
lastRemovedJid = jid;
iter.remove();
}
}
// fire only for the last one, at the end the event out
// of the protocol will be one and for the contact
if (caps != null) {
UserCapsNodeListener[] listeners;
synchronized (userCapsNodeListeners) {
listeners = userCapsNodeListeners.toArray(NO_USER_CAPS_NODE_LISTENERS);
}
if (listeners.length != 0) {
String nodeVer = caps.getNodeVer();
for (UserCapsNodeListener listener : listeners)
listener.userCapsNodeRemoved(lastRemovedJid, nodeVer, false);
}
}
}
/**
* Add a record telling what entity caps node a user has.
*
* @param user the user (Full JID)
* @param node the node (of the caps packet extension)
* @param hash the hashing algorithm used to calculate <tt>ver</tt>
* @param ver the version (of the caps packet extension)
* @param ext the ext (of the caps packet extension)
* @param online indicates if the user is online
*/
private void addUserCapsNode(
String user, String node, String hash, String ver, String ext, boolean online) {
if ((user != null) && (node != null) && (hash != null) && (ver != null)) {
Caps caps = userCaps.get(user);
if ((caps == null)
|| !caps.node.equals(node)
|| !caps.hash.equals(hash)
|| !caps.ver.equals(ver)) {
caps = new Caps(node, hash, ver, ext);
userCaps.put(user, caps);
} else return;
// Fire userCapsNodeAdded.
UserCapsNodeListener[] listeners;
synchronized (userCapsNodeListeners) {
listeners = userCapsNodeListeners.toArray(NO_USER_CAPS_NODE_LISTENERS);
}
if (listeners.length != 0) {
String nodeVer = caps.getNodeVer();
for (UserCapsNodeListener listener : listeners)
listener.userCapsNodeAdded(user, nodeVer, online);
}
}
}
/**
* Add {@link DiscoverInfo} to our caps database.
*
* <p><b>Warning</b>: The specified <tt>DiscoverInfo</tt> is trusted to be valid with respect to
* the specified <tt>Caps</tt> for performance reasons because the <tt>DiscoverInfo</tt> should
* have already been validated in order to be used elsewhere anyway.
*
* @param caps the <tt>Caps<tt/> i.e. the node, the hash and the ver for which a
* <tt>DiscoverInfo</tt> is to be added to our caps database.
* @param info {@link DiscoverInfo} for the specified <tt>Caps</tt>.
*/
public static void addDiscoverInfoByCaps(Caps caps, DiscoverInfo info) {
cleanupDiscoverInfo(info);
/*
* DiscoverInfo carries the node we're now associating it with a
* specific node so we'd better keep them in sync.
*/
info.setNode(caps.getNodeVer());
synchronized (caps2discoverInfo) {
DiscoverInfo oldInfo = caps2discoverInfo.put(caps, info);
/*
* If the specified info is a new association for the specified
* node, remember it across application instances in order to not
* query for it over the network.
*/
if ((oldInfo == null) || !oldInfo.equals(info)) {
String xml = info.getChildElementXML();
if ((xml != null) && (xml.length() != 0)) {
getConfigService().setProperty(getCapsPropertyName(caps), xml);
}
}
}
}
/**
* Remove a record telling what entity caps node a user has.
*
* @param user the user (Full JID)
*/
public void removeUserCapsNode(String user) {
Caps caps = userCaps.remove(user);
// Fire userCapsNodeRemoved.
if (caps != null) {
UserCapsNodeListener[] listeners;
synchronized (userCapsNodeListeners) {
listeners = userCapsNodeListeners.toArray(NO_USER_CAPS_NODE_LISTENERS);
}
if (listeners.length != 0) {
String nodeVer = caps.getNodeVer();
for (UserCapsNodeListener listener : listeners)
listener.userCapsNodeRemoved(user, nodeVer, false);
}
}
}
/**
* Set our own caps version.
*
* @param discoverInfo the {@link DiscoverInfo} that we'd like to map to the <tt>capsVersion</tt>.
* @param capsVersion the new caps version
*/
public void setCurrentCapsVersion(DiscoverInfo discoverInfo, String capsVersion) {
Caps caps = new Caps(getNode(), CapsPacketExtension.HASH_METHOD, capsVersion, null);
/*
* DiscoverInfo carries the node and the ver and we're now setting a new
* ver so we should update the DiscoveryInfo.
*/
discoverInfo.setNode(caps.getNodeVer());
if (!caps.isValid(discoverInfo)) {
throw new IllegalArgumentException(
"The specified discoverInfo must be valid with respect"
+ " to the specified capsVersion");
}
currentCapsVersion = capsVersion;
addDiscoverInfoByCaps(caps, discoverInfo);
fireCapsVerChanged();
}
/**
* Retrieve DiscoverInfo for a specific node.
*
* @param caps the <tt>Caps</tt> i.e. the node, the hash and the ver
* @return The corresponding DiscoverInfo or null if none is known.
*/
public static DiscoverInfo getDiscoverInfoByCaps(Caps caps) {
synchronized (caps2discoverInfo) {
DiscoverInfo discoverInfo = caps2discoverInfo.get(caps);
/*
* If we don't have the discoverInfo in the runtime cache yet, we
* may have it remembered in a previous application instance.
*/
if (discoverInfo == null) {
ConfigurationService configurationService = getConfigService();
String capsPropertyName = getCapsPropertyName(caps);
String xml = configurationService.getString(capsPropertyName);
if ((xml != null) && (xml.length() != 0)) {
IQProvider discoverInfoProvider =
(IQProvider)
ProviderManager.getInstance()
.getIQProvider("query", "http://jabber.org/protocol/disco#info");
if (discoverInfoProvider != null) {
XmlPullParser parser = new MXParser();
try {
parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
parser.setInput(new StringReader(xml));
// Start the parser.
parser.next();
} catch (XmlPullParserException xppex) {
parser = null;
} catch (IOException ioex) {
parser = null;
}
if (parser != null) {
try {
discoverInfo = (DiscoverInfo) discoverInfoProvider.parseIQ(parser);
} catch (Exception ex) {
}
if (discoverInfo != null) {
if (caps.isValid(discoverInfo)) caps2discoverInfo.put(caps, discoverInfo);
else {
logger.error(
"Invalid DiscoverInfo for " + caps.getNodeVer() + ": " + discoverInfo);
/*
* The discoverInfo doesn't seem valid
* according to the caps which means that we
* must have stored invalid information.
* Delete the invalid information in order
* to not try to validate it again.
*/
configurationService.removeProperty(capsPropertyName);
}
}
}
}
}
}
return discoverInfo;
}
}