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package eu.siacs.conversations.parser;
import android.util.Log;
import java.util.ArrayList;
import java.util.Collection;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.entities.Contact;
import eu.siacs.conversations.services.XmppConnectionService;
import eu.siacs.conversations.utils.Xmlns;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xmpp.OnIqPacketReceived;
import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
import eu.siacs.conversations.xmpp.jid.Jid;
import eu.siacs.conversations.xmpp.stanzas.IqPacket;
public class IqParser extends AbstractParser implements OnIqPacketReceived {
public IqParser(final XmppConnectionService service) {
super(service);
}
public void rosterItems(final Account account, final Element query) {
final String version = query.getAttribute("ver");
if (version != null) {
account.getRoster().setVersion(version);
}
for (final Element item : query.getChildren()) {
if (item.getName().equals("item")) {
final Jid jid = item.getAttributeAsJid("jid");
if (jid == null) {
continue;
}
final String name = item.getAttribute("name");
final String subscription = item.getAttribute("subscription");
final Contact contact = account.getRoster().getContact(jid);
if (!contact.getOption(Contact.Options.DIRTY_PUSH)) {
contact.setServerName(name);
contact.parseGroupsFromElement(item);
}
if (subscription != null) {
if (subscription.equals("remove")) {
contact.resetOption(Contact.Options.IN_ROSTER);
contact.resetOption(Contact.Options.DIRTY_DELETE);
contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
} else {
contact.setOption(Contact.Options.IN_ROSTER);
contact.resetOption(Contact.Options.DIRTY_PUSH);
contact.parseSubscriptionFromElement(item);
}
}
mXmppConnectionService.getAvatarService().clear(contact);
}
}
mXmppConnectionService.updateConversationUi();
mXmppConnectionService.updateRosterUi();
}
public String avatarData(final IqPacket packet) {
final Element pubsub = packet.findChild("pubsub",
"http://jabber.org/protocol/pubsub");
if (pubsub == null) {
return null;
}
final Element items = pubsub.findChild("items");
if (items == null) {
return null;
}
return super.avatarData(items);
}
@Override
public void onIqPacketReceived(final Account account, final IqPacket packet) {
if (packet.hasChild("query", "jabber:iq:roster")) {
final Jid from = packet.getFrom();
if ((from == null) || (from.equals(account.getJid().toBareJid()))) {
final Element query = packet.findChild("query");
this.rosterItems(account, query);
}
} else if (packet.hasChild("block", Xmlns.BLOCKING) || packet.hasChild("blocklist", Xmlns.BLOCKING)) {
// Only accept block list changes from the server.
// The server should probably prevent other people from faking a blocklist push,
// but just in case let's prevent it client side as well.
final Jid from = packet.getFrom();
if (from == null || from.equals(account.getServer()) || from.equals(account.getJid().toBareJid())) {
Log.d(Config.LOGTAG, "Received blocklist update from server");
final Element blocklist = packet.findChild("blocklist", Xmlns.BLOCKING);
final Element block = packet.findChild("block", Xmlns.BLOCKING);
final Collection<Element> items = blocklist != null ? blocklist.getChildren() :
(block != null ? block.getChildren() : null);
// If this is a response to a blocklist query, clear the block list and replace with the new one.
// Otherwise, just update the existing blocklist.
if (packet.getType() == IqPacket.TYPE_RESULT) {
account.clearBlocklist();
}
if (items != null) {
final Collection<Jid> jids = new ArrayList<>(items.size());
// Create a collection of Jids from the packet
for (final Element item : items) {
if (item.getName().equals("item")) {
final Jid jid = item.getAttributeAsJid("jid");
if (jid != null) {
jids.add(jid);
}
}
}
account.getBlocklist().addAll(jids);
}
// Update the UI
mXmppConnectionService.updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
} else {
Log.d(Config.LOGTAG, "Received blocklist update from invalid jid: " + from.toString());
}
} else if (packet.hasChild("unblock", Xmlns.BLOCKING)) {
final Jid from = packet.getFrom();
if ((from == null || from.equals(account.getServer()) || from.equals(account.getJid().toBareJid())) &&
packet.getType() == IqPacket.TYPE_SET) {
Log.d(Config.LOGTAG, "Received unblock update from server");
final Collection<Element> items = packet.getChildren().get(0).getChildren();
if (items.size() == 0) {
// No children to unblock == unblock all
account.getBlocklist().clear();
} else {
final Collection<Jid> jids = new ArrayList<>(items.size());
for (final Element item : items) {
if (item.getName().equals("item")) {
final Jid jid = item.getAttributeAsJid("jid");
if (jid != null) {
jids.add(jid);
}
}
}
account.getBlocklist().removeAll(jids);
mXmppConnectionService.updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
}
} else {
if (packet.getType() == IqPacket.TYPE_SET) {
Log.d(Config.LOGTAG, "Received unblock update from invalid jid " + from.toString());
} else {
Log.d(Config.LOGTAG, "Received unblock update with invalid type " + packet.getType());
}
}
} else {
if (packet.getFrom() == null) {
Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": received iq with invalid from "+packet.toString());
return;
} else if (packet.hasChild("open", "http://jabber.org/protocol/ibb")
|| packet.hasChild("data", "http://jabber.org/protocol/ibb")) {
mXmppConnectionService.getJingleConnectionManager()
.deliverIbbPacket(account, packet);
} else if (packet.hasChild("query", "http://jabber.org/protocol/disco#info")) {
final IqPacket response = mXmppConnectionService.getIqGenerator()
.discoResponse(packet);
account.getXmppConnection().sendIqPacket(response, null);
} else if (packet.hasChild("ping", "urn:xmpp:ping")) {
final IqPacket response = packet.generateRespone(IqPacket.TYPE_RESULT);
mXmppConnectionService.sendIqPacket(account, response, null);
} else {
if ((packet.getType() == IqPacket.TYPE_GET)
|| (packet.getType() == IqPacket.TYPE_SET)) {
final IqPacket response = packet.generateRespone(IqPacket.TYPE_ERROR);
final Element error = response.addChild("error");
error.setAttribute("type", "cancel");
error.addChild("feature-not-implemented",
"urn:ietf:params:xml:ns:xmpp-stanzas");
account.getXmppConnection().sendIqPacket(response, null);
}
}
}
}
}
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