diff options
Diffstat (limited to 'src/main/java/eu/siacs/conversations/parser/IqParser.java')
| -rw-r--r-- | src/main/java/eu/siacs/conversations/parser/IqParser.java | 355 |
1 files changed, 0 insertions, 355 deletions
diff --git a/src/main/java/eu/siacs/conversations/parser/IqParser.java b/src/main/java/eu/siacs/conversations/parser/IqParser.java deleted file mode 100644 index c03ed42f..00000000 --- a/src/main/java/eu/siacs/conversations/parser/IqParser.java +++ /dev/null @@ -1,355 +0,0 @@ -package eu.siacs.conversations.parser; - -import android.support.annotation.NonNull; -import android.util.Base64; -import android.util.Log; -import android.util.Pair; - -import org.whispersystems.libaxolotl.IdentityKey; -import org.whispersystems.libaxolotl.ecc.Curve; -import org.whispersystems.libaxolotl.ecc.ECPublicKey; -import org.whispersystems.libaxolotl.state.PreKeyBundle; - -import java.io.ByteArrayInputStream; -import java.security.cert.CertificateException; -import java.security.cert.CertificateFactory; -import java.security.cert.X509Certificate; -import java.util.ArrayList; -import java.util.Collection; -import java.util.HashMap; -import java.util.HashSet; -import java.util.List; -import java.util.Map; -import java.util.Set; - -import de.thedevstack.android.logcat.Logging; -import eu.siacs.conversations.Config; -import eu.siacs.conversations.crypto.axolotl.AxolotlService; -import eu.siacs.conversations.entities.Account; -import eu.siacs.conversations.entities.Contact; -import eu.siacs.conversations.services.AvatarService; -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); - } - } - AvatarService.getInstance().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"); - } - - @NonNull - public Set<Integer> deviceIds(final Element item) { - Set<Integer> deviceIds = new HashSet<>(); - if (item != null) { - final Element list = item.findChild("list"); - if (list != 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, AxolotlService.LOGPREFIX+" : "+"Encountered invalid <device> node in PEP ("+e.getMessage()+"):" + 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 (Throwable e) { - Log.e(Config.LOGTAG, AxolotlService.LOGPREFIX+" : "+"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; - } - try { - return Base64.decode(signedPreKeySignature.getContent(), Base64.DEFAULT); - } catch (Throwable e) { - Log.e(Config.LOGTAG, AxolotlService.LOGPREFIX+" : Invalid base64 in signedPreKeySignature"); - return null; - } - } - - 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 (Throwable e) { - Log.e(Config.LOGTAG, AxolotlService.LOGPREFIX+" : "+"Invalid identityKey in PEP: "+e.getMessage()); - } - return identityKey; - } - - public Map<Integer, ECPublicKey> preKeyPublics(final IqPacket packet) { - Map<Integer, ECPublicKey> preKeyRecords = new HashMap<>(); - Element item = getItem(packet); - if (item == null) { - Log.d(Config.LOGTAG, AxolotlService.LOGPREFIX+" : "+"Couldn't find <item> in bundle IQ packet: " + packet); - return null; - } - final Element bundleElement = item.findChild("bundle"); - if(bundleElement == null) { - return null; - } - final Element prekeysElement = bundleElement.findChild("prekeys"); - if(prekeysElement == null) { - Log.d(Config.LOGTAG, AxolotlService.LOGPREFIX+" : "+"Couldn't find <prekeys> in bundle IQ packet: " + packet); - return null; - } - for(Element preKeyPublicElement : prekeysElement.getChildren()) { - if(!preKeyPublicElement.getName().equals("preKeyPublic")){ - Log.d(Config.LOGTAG, AxolotlService.LOGPREFIX+" : "+"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 (Throwable e) { - Log.e(Config.LOGTAG, AxolotlService.LOGPREFIX+" : "+"Invalid preKeyPublic (ID="+preKeyId+") in PEP: "+ e.getMessage()+", skipping..."); - continue; - } - } - return preKeyRecords; - } - - public Pair<X509Certificate[],byte[]> verification(final IqPacket packet) { - Element item = getItem(packet); - Element verification = item != null ? item.findChild("verification", AxolotlService.PEP_PREFIX) : null; - Element chain = verification != null ? verification.findChild("chain") : null; - Element signature = verification != null ? verification.findChild("signature") : null; - if (chain != null && signature != null) { - List<Element> certElements = chain.getChildren(); - X509Certificate[] certificates = new X509Certificate[certElements.size()]; - try { - CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509"); - int i = 0; - for(Element cert : certElements) { - certificates[i] = (X509Certificate) certificateFactory.generateCertificate(new ByteArrayInputStream(Base64.decode(cert.getContent(),Base64.DEFAULT))); - ++i; - } - return new Pair<>(certificates,Base64.decode(signature.getContent(),Base64.DEFAULT)); - } catch (CertificateException e) { - return null; - } - } else { - return null; - } - } - - 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.getType() == IqPacket.TYPE.ERROR || packet.getType() == IqPacket.TYPE.TIMEOUT) { - return; - } else 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. - Logging.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) { - Logging.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); - } - } - } - -} |