315 lines
11 KiB
Java
315 lines
11 KiB
Java
package eu.siacs.conversations.parser;
|
|
|
|
import android.util.Base64;
|
|
import android.util.Log;
|
|
|
|
import org.whispersystems.libaxolotl.IdentityKey;
|
|
import org.whispersystems.libaxolotl.InvalidKeyException;
|
|
import org.whispersystems.libaxolotl.ecc.Curve;
|
|
import org.whispersystems.libaxolotl.ecc.ECPublicKey;
|
|
import org.whispersystems.libaxolotl.state.PreKeyBundle;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.Collection;
|
|
import java.util.HashMap;
|
|
import java.util.List;
|
|
import java.util.Map;
|
|
|
|
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);
|
|
}
|
|
|
|
private 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);
|
|
}
|
|
|
|
public Element getItem(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 items.findChild("item");
|
|
}
|
|
|
|
public List<Integer> deviceIds(final Element item) {
|
|
List<Integer> deviceIds = new ArrayList<>();
|
|
if (item == null) {
|
|
return null;
|
|
}
|
|
final Element list = item.findChild("list");
|
|
if(list == null) {
|
|
return null;
|
|
}
|
|
for(Element device : list.getChildren()) {
|
|
if(!device.getName().equals("device")) {
|
|
continue;
|
|
}
|
|
try {
|
|
Integer id = Integer.valueOf(device.getAttribute("id"));
|
|
deviceIds.add(id);
|
|
} catch (NumberFormatException e) {
|
|
Log.e(Config.LOGTAG, "Encountered nvalid <device> node in PEP:" + device.toString()
|
|
+ ", skipping...");
|
|
continue;
|
|
}
|
|
}
|
|
return deviceIds;
|
|
}
|
|
|
|
public Integer signedPreKeyId(final Element bundle) {
|
|
final Element signedPreKeyPublic = bundle.findChild("signedPreKeyPublic");
|
|
if(signedPreKeyPublic == null) {
|
|
return null;
|
|
}
|
|
return Integer.valueOf(signedPreKeyPublic.getAttribute("signedPreKeyId"));
|
|
}
|
|
|
|
public ECPublicKey signedPreKeyPublic(final Element bundle) {
|
|
ECPublicKey publicKey = null;
|
|
final Element signedPreKeyPublic = bundle.findChild("signedPreKeyPublic");
|
|
if(signedPreKeyPublic == null) {
|
|
return null;
|
|
}
|
|
try {
|
|
publicKey = Curve.decodePoint(Base64.decode(signedPreKeyPublic.getContent(),Base64.DEFAULT), 0);
|
|
} catch (InvalidKeyException e) {
|
|
Log.e(Config.LOGTAG, "Invalid signedPreKeyPublic in PEP: " + e.getMessage());
|
|
}
|
|
return publicKey;
|
|
}
|
|
|
|
public byte[] signedPreKeySignature(final Element bundle) {
|
|
final Element signedPreKeySignature = bundle.findChild("signedPreKeySignature");
|
|
if(signedPreKeySignature == null) {
|
|
return null;
|
|
}
|
|
return Base64.decode(signedPreKeySignature.getContent(),Base64.DEFAULT);
|
|
}
|
|
|
|
public IdentityKey identityKey(final Element bundle) {
|
|
IdentityKey identityKey = null;
|
|
final Element identityKeyElement = bundle.findChild("identityKey");
|
|
if(identityKeyElement == null) {
|
|
return null;
|
|
}
|
|
try {
|
|
identityKey = new IdentityKey(Base64.decode(identityKeyElement.getContent(), Base64.DEFAULT), 0);
|
|
} catch (InvalidKeyException e) {
|
|
Log.e(Config.LOGTAG,"Invalid identityKey in PEP: "+e.getMessage());
|
|
}
|
|
return identityKey;
|
|
}
|
|
|
|
public Map<Integer, ECPublicKey> preKeyPublics(final IqPacket packet) {
|
|
Map<Integer, ECPublicKey> preKeyRecords = new HashMap<>();
|
|
Element prekeysItem = getItem(packet);
|
|
if (prekeysItem == null) {
|
|
Log.d(Config.LOGTAG, "Couldn't find <item> in preKeyPublic IQ packet: " + packet);
|
|
return null;
|
|
}
|
|
final Element prekeysElement = prekeysItem.findChild("prekeys");
|
|
if(prekeysElement == null) {
|
|
Log.d(Config.LOGTAG, "Couldn't find <prekeys> in preKeyPublic IQ packet: " + packet);
|
|
return null;
|
|
}
|
|
for(Element preKeyPublicElement : prekeysElement.getChildren()) {
|
|
if(!preKeyPublicElement.getName().equals("preKeyPublic")){
|
|
Log.d(Config.LOGTAG, "Encountered unexpected tag in prekeys list: " + preKeyPublicElement);
|
|
continue;
|
|
}
|
|
Integer preKeyId = Integer.valueOf(preKeyPublicElement.getAttribute("preKeyId"));
|
|
try {
|
|
ECPublicKey preKeyPublic = Curve.decodePoint(Base64.decode(preKeyPublicElement.getContent(), Base64.DEFAULT), 0);
|
|
preKeyRecords.put(preKeyId, preKeyPublic);
|
|
} catch (InvalidKeyException e) {
|
|
Log.e(Config.LOGTAG, "Invalid preKeyPublic (ID="+preKeyId+") in PEP: "+ e.getMessage()+", skipping...");
|
|
continue;
|
|
}
|
|
}
|
|
return preKeyRecords;
|
|
}
|
|
|
|
public PreKeyBundle bundle(final IqPacket bundle) {
|
|
Element bundleItem = getItem(bundle);
|
|
if(bundleItem == null) {
|
|
return null;
|
|
}
|
|
final Element bundleElement = bundleItem.findChild("bundle");
|
|
if(bundleElement == null) {
|
|
return null;
|
|
}
|
|
ECPublicKey signedPreKeyPublic = signedPreKeyPublic(bundleElement);
|
|
Integer signedPreKeyId = signedPreKeyId(bundleElement);
|
|
byte[] signedPreKeySignature = signedPreKeySignature(bundleElement);
|
|
IdentityKey identityKey = identityKey(bundleElement);
|
|
if(signedPreKeyPublic == null || identityKey == null) {
|
|
return null;
|
|
}
|
|
|
|
return new PreKeyBundle(0, 0, 0, null,
|
|
signedPreKeyId, signedPreKeyPublic, signedPreKeySignature, identityKey);
|
|
}
|
|
|
|
public List<PreKeyBundle> preKeys(final IqPacket preKeys) {
|
|
List<PreKeyBundle> bundles = new ArrayList<>();
|
|
Map<Integer, ECPublicKey> preKeyPublics = preKeyPublics(preKeys);
|
|
if ( preKeyPublics != null) {
|
|
for (Integer preKeyId : preKeyPublics.keySet()) {
|
|
ECPublicKey preKeyPublic = preKeyPublics.get(preKeyId);
|
|
bundles.add(new PreKeyBundle(0, 0, preKeyId, preKeyPublic,
|
|
0, null, null, null));
|
|
}
|
|
}
|
|
|
|
return bundles;
|
|
}
|
|
|
|
@Override
|
|
public void onIqPacketReceived(final Account account, final IqPacket packet) {
|
|
if (packet.hasChild("query", Xmlns.ROSTER) && packet.fromServer(account)) {
|
|
final Element query = packet.findChild("query");
|
|
// If this is in response to a query for the whole roster:
|
|
if (packet.getType() == IqPacket.TYPE.RESULT) {
|
|
account.getRoster().markAllAsNotInRoster();
|
|
}
|
|
this.rosterItems(account, query);
|
|
} else if ((packet.hasChild("block", Xmlns.BLOCKING) || packet.hasChild("blocklist", Xmlns.BLOCKING)) &&
|
|
packet.fromServer(account)) {
|
|
// Block list or block push.
|
|
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();
|
|
account.getXmppConnection().getFeatures().setBlockListRequested(true);
|
|
}
|
|
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 if (packet.hasChild("unblock", Xmlns.BLOCKING) &&
|
|
packet.fromServer(account) && packet.getType() == IqPacket.TYPE.SET) {
|
|
Log.d(Config.LOGTAG, "Received unblock update from server");
|
|
final Collection<Element> items = packet.findChild("unblock", Xmlns.BLOCKING).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.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);
|
|
mXmppConnectionService.sendIqPacket(account, response, null);
|
|
} else if (packet.hasChild("query","jabber:iq:version")) {
|
|
final IqPacket response = mXmppConnectionService.getIqGenerator().versionResponse(packet);
|
|
mXmppConnectionService.sendIqPacket(account,response,null);
|
|
} else if (packet.hasChild("ping", "urn:xmpp:ping")) {
|
|
final IqPacket response = packet.generateResponse(IqPacket.TYPE.RESULT);
|
|
mXmppConnectionService.sendIqPacket(account, response, null);
|
|
} else {
|
|
if ((packet.getType() == IqPacket.TYPE.GET)
|
|
|| (packet.getType() == IqPacket.TYPE.SET)) {
|
|
final IqPacket response = packet.generateResponse(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);
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|