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Diffstat (limited to 'src/main/java/de/thedevstack/conversationsplus/xmpp/XmppConnection.java')
-rw-r--r--src/main/java/de/thedevstack/conversationsplus/xmpp/XmppConnection.java1521
1 files changed, 1521 insertions, 0 deletions
diff --git a/src/main/java/de/thedevstack/conversationsplus/xmpp/XmppConnection.java b/src/main/java/de/thedevstack/conversationsplus/xmpp/XmppConnection.java
new file mode 100644
index 00000000..9036bf8d
--- /dev/null
+++ b/src/main/java/de/thedevstack/conversationsplus/xmpp/XmppConnection.java
@@ -0,0 +1,1521 @@
+package de.thedevstack.conversationsplus.xmpp;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.os.PowerManager;
+import android.os.PowerManager.WakeLock;
+import android.os.SystemClock;
+import android.security.KeyChain;
+import android.util.Base64;
+import android.util.Log;
+import android.util.Pair;
+import android.util.SparseArray;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.math.BigInteger;
+import java.net.ConnectException;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.Socket;
+import java.net.UnknownHostException;
+import java.net.URL;
+import java.security.KeyManagementException;
+import java.security.NoSuchAlgorithmException;
+import java.security.Principal;
+import java.security.PrivateKey;
+import java.security.cert.X509Certificate;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Hashtable;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map.Entry;
+import java.util.TreeSet;
+
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.KeyManager;
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.SSLSocket;
+import javax.net.ssl.SSLSocketFactory;
+import javax.net.ssl.X509KeyManager;
+import javax.net.ssl.X509TrustManager;
+
+import de.duenndns.ssl.MemorizingTrustManager;
+import de.thedevstack.android.logcat.Logging;
+import de.thedevstack.conversationsplus.dto.SrvRecord;
+import de.thedevstack.conversationsplus.Config;
+import de.thedevstack.conversationsplus.crypto.XmppDomainVerifier;
+import de.thedevstack.conversationsplus.crypto.sasl.DigestMd5;
+import de.thedevstack.conversationsplus.crypto.sasl.External;
+import de.thedevstack.conversationsplus.crypto.sasl.Plain;
+import de.thedevstack.conversationsplus.crypto.sasl.SaslMechanism;
+import de.thedevstack.conversationsplus.crypto.sasl.ScramSha1;
+import de.thedevstack.conversationsplus.entities.Account;
+import de.thedevstack.conversationsplus.entities.Message;
+import de.thedevstack.conversationsplus.entities.ServiceDiscoveryResult;
+import de.thedevstack.conversationsplus.generator.IqGenerator;
+import de.thedevstack.conversationsplus.services.XmppConnectionService;
+import de.thedevstack.conversationsplus.utils.DNSHelper;
+import de.thedevstack.conversationsplus.utils.SSLSocketHelper;
+import de.thedevstack.conversationsplus.utils.Xmlns;
+import de.thedevstack.conversationsplus.xml.Element;
+import de.thedevstack.conversationsplus.xml.Tag;
+import de.thedevstack.conversationsplus.xml.TagWriter;
+import de.thedevstack.conversationsplus.xml.XmlReader;
+import de.thedevstack.conversationsplus.xmpp.forms.Data;
+import de.thedevstack.conversationsplus.xmpp.forms.Field;
+import de.thedevstack.conversationsplus.xmpp.jid.InvalidJidException;
+import de.thedevstack.conversationsplus.xmpp.jid.Jid;
+import de.thedevstack.conversationsplus.xmpp.jingle.OnJinglePacketReceived;
+import de.thedevstack.conversationsplus.xmpp.jingle.stanzas.JinglePacket;
+import de.thedevstack.conversationsplus.xmpp.stanzas.AbstractAcknowledgeableStanza;
+import de.thedevstack.conversationsplus.xmpp.stanzas.AbstractStanza;
+import de.thedevstack.conversationsplus.xmpp.stanzas.IqPacket;
+import de.thedevstack.conversationsplus.xmpp.stanzas.MessagePacket;
+import de.thedevstack.conversationsplus.xmpp.stanzas.PresencePacket;
+import de.thedevstack.conversationsplus.xmpp.stanzas.csi.ActivePacket;
+import de.thedevstack.conversationsplus.xmpp.stanzas.csi.InactivePacket;
+import de.thedevstack.conversationsplus.xmpp.stanzas.streammgmt.AckPacket;
+import de.thedevstack.conversationsplus.xmpp.stanzas.streammgmt.EnablePacket;
+import de.thedevstack.conversationsplus.xmpp.stanzas.streammgmt.RequestPacket;
+import de.thedevstack.conversationsplus.xmpp.stanzas.streammgmt.ResumePacket;
+
+public class XmppConnection implements Runnable {
+ private static final int DEFAULT_PORT = 5222;
+ private static final int PACKET_IQ = 0;
+ private static final int PACKET_MESSAGE = 1;
+ private static final int PACKET_PRESENCE = 2;
+ protected Account account;
+ private final WakeLock wakeLock;
+ private Socket socket;
+ private XmlReader tagReader;
+ private TagWriter tagWriter;
+ private final Features features = new Features(this);
+ private boolean needsBinding = true;
+ private boolean shouldAuthenticate = true;
+ private Element streamFeatures;
+ private final HashMap<Jid, ServiceDiscoveryResult> disco = new HashMap<>();
+
+ private String streamId = null;
+ private int smVersion = 3;
+ private final SparseArray<AbstractAcknowledgeableStanza> mStanzaQueue = new SparseArray<>();
+
+ private int stanzasReceived = 0;
+ private int stanzasSent = 0;
+ private long lastPacketReceived = 0;
+ private long lastPingSent = 0;
+ private long lastConnect = 0;
+ private long lastSessionStarted = 0;
+ private long lastDiscoStarted = 0;
+ private int mPendingServiceDiscoveries = 0;
+ private final ArrayList<String> mPendingServiceDiscoveriesIds = new ArrayList<>();
+ private boolean mInteractive = false;
+ private int attempt = 0;
+ private final Hashtable<String, Pair<IqPacket, OnIqPacketReceived>> packetCallbacks = new Hashtable<>();
+ private OnPresencePacketReceived presenceListener = null;
+ private OnJinglePacketReceived jingleListener = null;
+ private OnIqPacketReceived unregisteredIqListener = null;
+ private OnMessagePacketReceived messageListener = null;
+ private OnStatusChanged statusListener = null;
+ private OnBindListener bindListener = null;
+ private final ArrayList<OnAdvancedStreamFeaturesLoaded> advancedStreamFeaturesLoadedListeners = new ArrayList<>();
+ private OnMessageAcknowledged acknowledgedListener = null;
+ private XmppConnectionService mXmppConnectionService = null;
+
+ private SaslMechanism saslMechanism;
+
+ private X509KeyManager mKeyManager = new X509KeyManager() {
+ @Override
+ public String chooseClientAlias(String[] strings, Principal[] principals, Socket socket) {
+ return account.getPrivateKeyAlias();
+ }
+
+ @Override
+ public String chooseServerAlias(String s, Principal[] principals, Socket socket) {
+ return null;
+ }
+
+ @Override
+ public X509Certificate[] getCertificateChain(String alias) {
+ try {
+ return KeyChain.getCertificateChain(mXmppConnectionService, alias);
+ } catch (Exception e) {
+ return new X509Certificate[0];
+ }
+ }
+
+ @Override
+ public String[] getClientAliases(String s, Principal[] principals) {
+ return new String[0];
+ }
+
+ @Override
+ public String[] getServerAliases(String s, Principal[] principals) {
+ return new String[0];
+ }
+
+ @Override
+ public PrivateKey getPrivateKey(String alias) {
+ try {
+ return KeyChain.getPrivateKey(mXmppConnectionService, alias);
+ } catch (Exception e) {
+ return null;
+ }
+ }
+ };
+ private Identity mServerIdentity = Identity.UNKNOWN;
+
+ private OnIqPacketReceived createPacketReceiveHandler() {
+ return new OnIqPacketReceived() {
+ @Override
+ public void onIqPacketReceived(Account account, IqPacket packet) {
+ if (packet.getType() == IqPacket.TYPE.RESULT) {
+ account.setOption(Account.OPTION_REGISTER,
+ false);
+ changeStatus(Account.State.REGISTRATION_SUCCESSFUL);
+ } else if (packet.hasChild("error")
+ && (packet.findChild("error")
+ .hasChild("conflict"))) {
+ changeStatus(Account.State.REGISTRATION_CONFLICT);
+ } else {
+ changeStatus(Account.State.REGISTRATION_FAILED);
+ Log.d(Config.LOGTAG, packet.toString());
+ }
+ disconnect(true);
+ }
+ };
+ }
+
+ public XmppConnection(final Account account, final XmppConnectionService service) {
+ this.account = account;
+ this.wakeLock = service.getPowerManager().newWakeLock(
+ PowerManager.PARTIAL_WAKE_LOCK, account.getJid().toBareJid().toString());
+ tagWriter = new TagWriter();
+ mXmppConnectionService = service;
+ }
+
+ protected void changeStatus(final Account.State nextStatus) {
+ if (account.getStatus() != nextStatus) {
+ if ((nextStatus == Account.State.OFFLINE)
+ && (account.getStatus() != Account.State.CONNECTING)
+ && (account.getStatus() != Account.State.ONLINE)
+ && (account.getStatus() != Account.State.DISABLED)) {
+ return;
+ }
+ if (nextStatus == Account.State.ONLINE) {
+ this.attempt = 0;
+ }
+ account.setStatus(nextStatus);
+ if (statusListener != null) {
+ statusListener.onStatusChanged(account);
+ }
+ }
+ }
+
+ public void prepareNewConnection() {
+ this.lastConnect = SystemClock.elapsedRealtime();
+ this.lastPingSent = SystemClock.elapsedRealtime();
+ this.lastDiscoStarted = Long.MAX_VALUE;
+ this.changeStatus(Account.State.CONNECTING);
+ }
+
+ protected void connect() {
+ Logging.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": connecting");
+ features.encryptionEnabled = false;
+ this.attempt++;
+ switch (account.getJid().getDomainpart()) {
+ case "chat.facebook.com":
+ mServerIdentity = Identity.FACEBOOK;
+ break;
+ case "nimbuzz.com":
+ mServerIdentity = Identity.NIMBUZZ;
+ break;
+ default:
+ mServerIdentity = Identity.UNKNOWN;
+ break;
+ }
+ try {
+ shouldAuthenticate = needsBinding = !account.isOptionSet(Account.OPTION_REGISTER);
+ tagReader = new XmlReader(wakeLock);
+ tagWriter = new TagWriter();
+ this.changeStatus(Account.State.CONNECTING);
+ final boolean extended = mXmppConnectionService.showExtendedConnectionOptions();
+ if (extended && account.getHostname() != null && !account.getHostname().isEmpty()) {
+ socket = new Socket();
+ try {
+ socket.connect(new InetSocketAddress(account.getHostname(), account.getPort()), Config.SOCKET_TIMEOUT * 1000);
+ } catch (IOException e) {
+ throw new UnknownHostException();
+ }
+ startXmpp();
+ } else if (DNSHelper.isIp(account.getServer().toString())) {
+ socket = new Socket();
+ try {
+ socket.connect(new InetSocketAddress(account.getServer().toString(), DEFAULT_PORT), Config.SOCKET_TIMEOUT * 1000);
+ } catch (IOException e) {
+ throw new UnknownHostException();
+ }
+ startXmpp();
+ } else {
+ final TreeSet<SrvRecord> srvRecords = DNSHelper.querySrvRecord(account.getServer());
+ if (srvRecords.isEmpty()) {
+ socket = new Socket();
+ try {
+ socket.connect(new InetSocketAddress(account.getServer().getDomainpart(), DEFAULT_PORT), Config.SOCKET_TIMEOUT * 1000);
+ } catch (IOException e) {
+ throw new UnknownHostException();
+ }
+ startXmpp();
+ } else {
+ for (SrvRecord srvRecord : srvRecords) {
+ // if tls is true, encryption is implied and must not be started
+ features.encryptionEnabled = srvRecord.isUseTls();
+ TlsFactoryVerifier tlsFactoryVerifier = null;
+ if (features.encryptionEnabled) {
+ try {
+ tlsFactoryVerifier = getTlsFactoryVerifier();
+ socket = tlsFactoryVerifier.factory.createSocket();
+
+ if (socket == null) {
+ throw new IOException("could not initialize ssl socket");
+ }
+
+ SSLSocketHelper.setSecurity((SSLSocket) socket);
+ SSLSocketHelper.setSNIHost(tlsFactoryVerifier.factory, (SSLSocket) socket, account.getServer().getDomainpart());
+ SSLSocketHelper.setAlpnProtocol(tlsFactoryVerifier.factory, (SSLSocket) socket, "xmpp-client");
+ } catch (SecurityException e) {
+ throw e;
+ } catch (KeyManagementException e) {
+ Logging.e("connection-init", "Error while creating TLS verifier factory: " + e.getMessage(), e);
+ throw new SecurityException();
+ }
+ } else {
+ socket = new Socket();
+ }
+
+ socket.connect(new InetSocketAddress(srvRecord.getName(), srvRecord.getPort()), Config.SOCKET_TIMEOUT * 1000);
+
+ if (null != tlsFactoryVerifier && !tlsFactoryVerifier.verifier.verify(account.getServer().getDomainpart(), ((SSLSocket) socket).getSession())) {
+ Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": TLS certificate verification failed");
+ throw new SecurityException();
+ }
+
+ if (startXmpp()) {
+ break; // successfully connected to server that speaks xmpp
+ }
+ }
+ }
+ }
+ processStream();
+ } catch (final IncompatibleServerException e) {
+ this.changeStatus(Account.State.INCOMPATIBLE_SERVER);
+ } catch (final SecurityException e) {
+ this.changeStatus(Account.State.SECURITY_ERROR);
+ } catch (final UnauthorizedException e) {
+ this.changeStatus(Account.State.UNAUTHORIZED);
+ } catch (final UnknownHostException | ConnectException e) {
+ this.changeStatus(Account.State.SERVER_NOT_FOUND);
+ } catch (final IOException | XmlPullParserException | NoSuchAlgorithmException e) {
+ Logging.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": " + e.getMessage());
+ this.changeStatus(Account.State.OFFLINE);
+ this.attempt--; //don't count attempt when reconnecting instantly anyway
+ } finally {
+ forceCloseSocket();
+ if (wakeLock.isHeld()) {
+ try {
+ wakeLock.release();
+ } catch (final RuntimeException ignored) {
+ }
+ }
+ }
+ }
+
+ /**
+ * Starts xmpp protocol, call after connecting to socket
+ * @return true if server returns with valid xmpp, false otherwise
+ * @throws IOException Unknown tag on connect
+ * @throws XmlPullParserException Bad Xml
+ * @throws NoSuchAlgorithmException Other error
+ */
+ private boolean startXmpp() throws IOException, XmlPullParserException, NoSuchAlgorithmException {
+ tagWriter.setOutputStream(socket.getOutputStream());
+ tagReader.setInputStream(socket.getInputStream());
+ tagWriter.beginDocument();
+ sendStartStream();
+ Tag nextTag;
+ while ((nextTag = tagReader.readTag()) != null) {
+ if (nextTag.isStart("stream")) {
+ return true;
+ } else {
+ throw new IOException("unknown tag on connect");
+ }
+ }
+ if (socket.isConnected()) {
+ socket.close();
+ }
+ return false;
+ }
+
+ private static class TlsFactoryVerifier {
+ private final SSLSocketFactory factory;
+ private final HostnameVerifier verifier;
+
+ public TlsFactoryVerifier(final SSLSocketFactory factory, final HostnameVerifier verifier) throws IOException {
+ this.factory = factory;
+ this.verifier = verifier;
+ if (factory == null || verifier == null) {
+ throw new IOException("could not setup ssl");
+ }
+ }
+ }
+
+ private TlsFactoryVerifier getTlsFactoryVerifier() throws NoSuchAlgorithmException, KeyManagementException, IOException {
+ final SSLContext sc = SSLSocketHelper.getSSLContext();
+ MemorizingTrustManager trustManager = this.mXmppConnectionService.getMemorizingTrustManager();
+ KeyManager[] keyManager;
+ if (account.getPrivateKeyAlias() != null && account.getPassword().isEmpty()) {
+ keyManager = new KeyManager[]{mKeyManager};
+ } else {
+ keyManager = null;
+ }
+ sc.init(keyManager, new X509TrustManager[]{mInteractive ? trustManager : trustManager.getNonInteractive()}, mXmppConnectionService.getRNG());
+ final SSLSocketFactory factory = sc.getSocketFactory();
+ final HostnameVerifier verifier;
+ if (mInteractive) {
+ verifier = trustManager.wrapHostnameVerifier(new XmppDomainVerifier());
+ } else {
+ verifier = trustManager.wrapHostnameVerifierNonInteractive(new XmppDomainVerifier());
+ }
+
+ return new TlsFactoryVerifier(factory, verifier);
+ }
+
+ @Override
+ public void run() {
+ forceCloseSocket();
+ connect();
+ }
+
+ private void processStream() throws XmlPullParserException, IOException, NoSuchAlgorithmException {
+ Tag nextTag = tagReader.readTag();
+ while (nextTag != null && !nextTag.isEnd("stream")) {
+ if (nextTag.isStart("error")) {
+ processStreamError(nextTag);
+ } else if (nextTag.isStart("features")) {
+ processStreamFeatures(nextTag);
+ } else if (nextTag.isStart("proceed")) {
+ switchOverToTls(nextTag);
+ } else if (nextTag.isStart("success")) {
+ final String challenge = tagReader.readElement(nextTag).getContent();
+ try {
+ saslMechanism.getResponse(challenge);
+ } catch (final SaslMechanism.AuthenticationException e) {
+ disconnect(true);
+ Log.e(Config.LOGTAG, String.valueOf(e));
+ }
+ Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": logged in");
+ account.setKey(Account.PINNED_MECHANISM_KEY,
+ String.valueOf(saslMechanism.getPriority()));
+ tagReader.reset();
+ sendStartStream();
+ final Tag tag = tagReader.readTag();
+ if (tag != null && tag.isStart("stream")) {
+ processStream();
+ } else {
+ throw new IOException("server didn't restart stream after successful auth");
+ }
+ break;
+ } else if (nextTag.isStart("failure")) {
+ throw new UnauthorizedException();
+ } else if (nextTag.isStart("challenge")) {
+ final String challenge = tagReader.readElement(nextTag).getContent();
+ final Element response = new Element("response");
+ response.setAttribute("xmlns",
+ "urn:ietf:params:xml:ns:xmpp-sasl");
+ try {
+ response.setContent(saslMechanism.getResponse(challenge));
+ } catch (final SaslMechanism.AuthenticationException e) {
+ // TODO: Send auth abort tag.
+ Log.e(Config.LOGTAG, e.toString());
+ }
+ tagWriter.writeElement(response);
+ } else if (nextTag.isStart("enabled")) {
+ final Element enabled = tagReader.readElement(nextTag);
+ if ("true".equals(enabled.getAttribute("resume"))) {
+ this.streamId = enabled.getAttribute("id");
+ Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
+ + ": stream managment(" + smVersion
+ + ") enabled (resumable)");
+ } else {
+ Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
+ + ": stream management(" + smVersion + ") enabled");
+ }
+ this.stanzasReceived = 0;
+ final RequestPacket r = new RequestPacket(smVersion);
+ tagWriter.writeStanzaAsync(r);
+ } else if (nextTag.isStart("resumed")) {
+ lastPacketReceived = SystemClock.elapsedRealtime();
+ final Element resumed = tagReader.readElement(nextTag);
+ final String h = resumed.getAttribute("h");
+ try {
+ final int serverCount = Integer.parseInt(h);
+ if (serverCount != stanzasSent) {
+ Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
+ + ": session resumed with lost packages");
+ stanzasSent = serverCount;
+ } else {
+ Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": session resumed");
+ }
+ acknowledgeStanzaUpTo(serverCount);
+ ArrayList<AbstractAcknowledgeableStanza> failedStanzas = new ArrayList<>();
+ for(int i = 0; i < this.mStanzaQueue.size(); ++i) {
+ failedStanzas.add(mStanzaQueue.valueAt(i));
+ }
+ mStanzaQueue.clear();
+ Log.d(Config.LOGTAG,"resending "+failedStanzas.size()+" stanzas");
+ for(AbstractAcknowledgeableStanza packet : failedStanzas) {
+ if (packet instanceof MessagePacket) {
+ MessagePacket message = (MessagePacket) packet;
+ mXmppConnectionService.markMessage(account,
+ message.getTo().toBareJid(),
+ message.getId(),
+ Message.STATUS_UNSEND);
+ }
+ sendPacket(packet);
+ }
+ } catch (final NumberFormatException ignored) {
+ }
+ Log.d(Config.LOGTAG, account.getJid().toBareJid()+ ": online with resource " + account.getResource());
+ changeStatus(Account.State.ONLINE);
+ } else if (nextTag.isStart("r")) {
+ tagReader.readElement(nextTag);
+ if (Config.EXTENDED_SM_LOGGING) {
+ Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": acknowledging stanza #" + this.stanzasReceived);
+ }
+ final AckPacket ack = new AckPacket(this.stanzasReceived, smVersion);
+ tagWriter.writeStanzaAsync(ack);
+ } else if (nextTag.isStart("a")) {
+ final Element ack = tagReader.readElement(nextTag);
+ lastPacketReceived = SystemClock.elapsedRealtime();
+ try {
+ final int serverSequence = Integer.parseInt(ack.getAttribute("h"));
+ acknowledgeStanzaUpTo(serverSequence);
+ } catch (NumberFormatException e) {
+ Log.d(Config.LOGTAG,account.getJid().toBareJid()+": server send ack without sequence number");
+ }
+ } else if (nextTag.isStart("failed")) {
+ tagReader.readElement(nextTag);
+ Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": resumption failed");
+ resetStreamId();
+ if (account.getStatus() != Account.State.ONLINE) {
+ sendBindRequest();
+ }
+ } else if (nextTag.isStart("iq")) {
+ processIq(nextTag);
+ } else if (nextTag.isStart("message")) {
+ processMessage(nextTag);
+ } else if (nextTag.isStart("presence")) {
+ processPresence(nextTag);
+ }
+ nextTag = tagReader.readTag();
+ }
+ throw new IOException("reached end of stream. last tag was "+nextTag);
+ }
+
+ private void acknowledgeStanzaUpTo(int serverCount) {
+ for (int i = 0; i < mStanzaQueue.size(); ++i) {
+ if (serverCount >= mStanzaQueue.keyAt(i)) {
+ if (Config.EXTENDED_SM_LOGGING) {
+ Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": server acknowledged stanza #" + mStanzaQueue.keyAt(i));
+ }
+ AbstractAcknowledgeableStanza stanza = mStanzaQueue.valueAt(i);
+ if (stanza instanceof MessagePacket && acknowledgedListener != null) {
+ MessagePacket packet = (MessagePacket) stanza;
+ acknowledgedListener.onMessageAcknowledged(account, packet.getId());
+ }
+ mStanzaQueue.removeAt(i);
+ i--;
+ }
+ }
+ }
+
+ private Element processPacket(final Tag currentTag, final int packetType)
+ throws XmlPullParserException, IOException {
+ Element element;
+ switch (packetType) {
+ case PACKET_IQ:
+ element = new IqPacket();
+ break;
+ case PACKET_MESSAGE:
+ element = new MessagePacket();
+ break;
+ case PACKET_PRESENCE:
+ element = new PresencePacket();
+ break;
+ default:
+ return null;
+ }
+ element.setAttributes(currentTag.getAttributes());
+ Tag nextTag = tagReader.readTag();
+ if (nextTag == null) {
+ throw new IOException("interrupted mid tag");
+ }
+ while (!nextTag.isEnd(element.getName())) {
+ if (!nextTag.isNo()) {
+ final Element child = tagReader.readElement(nextTag);
+ final String type = currentTag.getAttribute("type");
+ if (packetType == PACKET_IQ
+ && "jingle".equals(child.getName())
+ && ("set".equalsIgnoreCase(type) || "get"
+ .equalsIgnoreCase(type))) {
+ element = new JinglePacket();
+ element.setAttributes(currentTag.getAttributes());
+ }
+ element.addChild(child);
+ }
+ nextTag = tagReader.readTag();
+ if (nextTag == null) {
+ throw new IOException("interrupted mid tag");
+ }
+ }
+ if (stanzasReceived == Integer.MAX_VALUE) {
+ resetStreamId();
+ throw new IOException("time to restart the session. cant handle >2 billion pcks");
+ }
+ ++stanzasReceived;
+ lastPacketReceived = SystemClock.elapsedRealtime();
+ return element;
+ }
+
+ private void processIq(final Tag currentTag) throws XmlPullParserException, IOException {
+ final IqPacket packet = (IqPacket) processPacket(currentTag, PACKET_IQ);
+
+ if (packet.getId() == null) {
+ return; // an iq packet without id is definitely invalid
+ }
+
+ if (packet instanceof JinglePacket) {
+ if (this.jingleListener != null) {
+ this.jingleListener.onJinglePacketReceived(account,(JinglePacket) packet);
+ }
+ } else {
+ OnIqPacketReceived callback = null;
+ synchronized (this.packetCallbacks) {
+ if (packetCallbacks.containsKey(packet.getId())) {
+ final Pair<IqPacket, OnIqPacketReceived> packetCallbackDuple = packetCallbacks.get(packet.getId());
+ // Packets to the server should have responses from the server
+ if (packetCallbackDuple.first.toServer(account)) {
+ if (packet.fromServer(account) || mServerIdentity == Identity.FACEBOOK) {
+ callback = packetCallbackDuple.second;
+ packetCallbacks.remove(packet.getId());
+ } else {
+ Log.e(Config.LOGTAG, account.getJid().toBareJid().toString() + ": ignoring spoofed iq packet");
+ }
+ } else {
+ if (packet.getFrom().equals(packetCallbackDuple.first.getTo())) {
+ callback = packetCallbackDuple.second;
+ packetCallbacks.remove(packet.getId());
+ } else {
+ Logging.e(Config.LOGTAG, account.getJid().toBareJid().toString() + ": ignoring spoofed iq packet");
+ }
+ }
+ } else if (packet.getType() == IqPacket.TYPE.GET || packet.getType() == IqPacket.TYPE.SET) {
+ callback = this.unregisteredIqListener;
+ }
+ }
+ if (callback != null) {
+ callback.onIqPacketReceived(account,packet);
+ }
+ }
+ }
+
+ private void processMessage(final Tag currentTag) throws XmlPullParserException, IOException {
+ final MessagePacket packet = (MessagePacket) processPacket(currentTag,PACKET_MESSAGE);
+ this.messageListener.onMessagePacketReceived(account, packet);
+ }
+
+ private void processPresence(final Tag currentTag) throws XmlPullParserException, IOException {
+ PresencePacket packet = (PresencePacket) processPacket(currentTag, PACKET_PRESENCE);
+ this.presenceListener.onPresencePacketReceived(account, packet);
+ }
+
+ private void sendStartTLS() throws IOException {
+ final Tag startTLS = Tag.empty("starttls");
+ startTLS.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-tls");
+ tagWriter.writeTag(startTLS);
+ }
+
+
+
+ private void switchOverToTls(final Tag currentTag) throws XmlPullParserException, IOException {
+ tagReader.readTag();
+ try {
+ final TlsFactoryVerifier tlsFactoryVerifier = getTlsFactoryVerifier();
+ final InetAddress address = socket == null ? null : socket.getInetAddress();
+
+ if (address == null) {
+ throw new IOException("could not setup ssl");
+ }
+
+ final SSLSocket sslSocket = (SSLSocket) tlsFactoryVerifier.factory.createSocket(socket, address.getHostAddress(), socket.getPort(), true);
+
+ if (sslSocket == null) {
+ throw new IOException("could not initialize ssl socket");
+ }
+
+ SSLSocketHelper.setSecurity(sslSocket);
+
+ if (!tlsFactoryVerifier.verifier.verify(account.getServer().getDomainpart(), sslSocket.getSession())) {
+ Log.d(Config.LOGTAG,account.getJid().toBareJid()+": TLS certificate verification failed");
+ throw new SecurityException();
+ }
+ tagReader.setInputStream(sslSocket.getInputStream());
+ tagWriter.setOutputStream(sslSocket.getOutputStream());
+ sendStartStream();
+ Log.d(Config.LOGTAG, account.getJid().toBareJid()+ ": TLS connection established");
+ features.encryptionEnabled = true;
+ final Tag tag = tagReader.readTag();
+ if (tag != null && tag.isStart("stream")) {
+ processStream();
+ } else {
+ throw new IOException("server didn't restart stream after STARTTLS");
+ }
+ sslSocket.close();
+ } catch (final NoSuchAlgorithmException | KeyManagementException e1) {
+ Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": TLS certificate verification failed");
+ throw new SecurityException();
+ }
+ }
+
+ private void processStreamFeatures(final Tag currentTag)
+ throws XmlPullParserException, IOException {
+ this.streamFeatures = tagReader.readElement(currentTag);
+ if (this.streamFeatures.hasChild("starttls") && !features.encryptionEnabled) {
+ sendStartTLS();
+ } else if (this.streamFeatures.hasChild("register") && account.isOptionSet(Account.OPTION_REGISTER)) {
+ if (features.encryptionEnabled || Config.ALLOW_NON_TLS_CONNECTIONS) {
+ sendRegistryRequest();
+ } else {
+ throw new IncompatibleServerException();
+ }
+ } else if (!this.streamFeatures.hasChild("register")
+ && account.isOptionSet(Account.OPTION_REGISTER)) {
+ changeStatus(Account.State.REGISTRATION_NOT_SUPPORTED);
+ disconnect(true);
+ } else if (this.streamFeatures.hasChild("mechanisms")
+ && shouldAuthenticate
+ && (features.encryptionEnabled || Config.ALLOW_NON_TLS_CONNECTIONS)) {
+ final List<String> mechanisms = extractMechanisms(streamFeatures
+ .findChild("mechanisms"));
+ final Element auth = new Element("auth");
+ auth.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-sasl");
+ if (mechanisms.contains("EXTERNAL") && account.getPrivateKeyAlias() != null) {
+ saslMechanism = new External(tagWriter, account, mXmppConnectionService.getRNG());
+ } else if (mechanisms.contains("SCRAM-SHA-1")) {
+ saslMechanism = new ScramSha1(tagWriter, account, mXmppConnectionService.getRNG());
+ } else if (mechanisms.contains("PLAIN")) {
+ saslMechanism = new Plain(tagWriter, account);
+ } else if (mechanisms.contains("DIGEST-MD5")) {
+ saslMechanism = new DigestMd5(tagWriter, account, mXmppConnectionService.getRNG());
+ }
+ if (saslMechanism != null) {
+ final JSONObject keys = account.getKeys();
+ try {
+ if (keys.has(Account.PINNED_MECHANISM_KEY) &&
+ keys.getInt(Account.PINNED_MECHANISM_KEY) > saslMechanism.getPriority()) {
+ Logging.e(Config.LOGTAG, "Auth failed. Authentication mechanism " + saslMechanism.getMechanism() +
+ " has lower priority (" + String.valueOf(saslMechanism.getPriority()) +
+ ") than pinned priority (" + keys.getInt(Account.PINNED_MECHANISM_KEY) +
+ "). Possible downgrade attack?");
+ throw new SecurityException();
+ }
+ } catch (final JSONException e) {
+ Logging.d(Config.LOGTAG, "Parse error while checking pinned auth mechanism");
+ }
+ Logging.d(Config.LOGTAG, account.getJid().toString() + ": Authenticating with " + saslMechanism.getMechanism());
+ auth.setAttribute("mechanism", saslMechanism.getMechanism());
+ if (!saslMechanism.getClientFirstMessage().isEmpty()) {
+ auth.setContent(saslMechanism.getClientFirstMessage());
+ }
+ tagWriter.writeElement(auth);
+ } else {
+ throw new IncompatibleServerException();
+ }
+ } else if (this.streamFeatures.hasChild("sm", "urn:xmpp:sm:" + smVersion) && streamId != null) {
+ if (Config.EXTENDED_SM_LOGGING) {
+ Logging.d(Config.LOGTAG,account.getJid().toBareJid()+": resuming after stanza #"+stanzasReceived);
+ }
+ final ResumePacket resume = new ResumePacket(this.streamId, stanzasReceived, smVersion);
+ this.tagWriter.writeStanzaAsync(resume);
+ } else if (needsBinding) {
+ if (this.streamFeatures.hasChild("bind")) {
+ sendBindRequest();
+ } else {
+ throw new IncompatibleServerException();
+ }
+ }
+ }
+
+ private List<String> extractMechanisms(final Element stream) {
+ final ArrayList<String> mechanisms = new ArrayList<>(stream
+ .getChildren().size());
+ for (final Element child : stream.getChildren()) {
+ mechanisms.add(child.getContent());
+ }
+ return mechanisms;
+ }
+
+ public void sendCaptchaRegistryRequest(String id, Data data) {
+ if (data == null) {
+ setAccountCreationFailed("");
+ } else {
+ IqPacket request = getIqGenerator().generateCreateAccountWithCaptcha(account, id, data);
+ sendIqPacket(request, createPacketReceiveHandler());
+ }
+ }
+
+ private void sendRegistryRequest() {
+ final IqPacket register = new IqPacket(IqPacket.TYPE.GET);
+ register.query("jabber:iq:register");
+ register.setTo(account.getServer());
+ sendIqPacket(register, new OnIqPacketReceived() {
+
+ @Override
+ public void onIqPacketReceived(final Account account, final IqPacket packet) {
+ boolean failed = false;
+ if (packet.getType() == IqPacket.TYPE.RESULT
+ && packet.query().hasChild("username")
+ && (packet.query().hasChild("password"))) {
+ final IqPacket register = new IqPacket(IqPacket.TYPE.SET);
+ final Element username = new Element("username").setContent(account.getUsername());
+ final Element password = new Element("password").setContent(account.getPassword());
+ register.query("jabber:iq:register").addChild(username);
+ register.query().addChild(password);
+ sendIqPacket(register, createPacketReceiveHandler());
+ } else if (packet.getType() == IqPacket.TYPE.RESULT
+ && (packet.query().hasChild("x", "jabber:x:data"))) {
+ final Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
+ final Element blob = packet.query().findChild("data", "urn:xmpp:bob");
+ final String id = packet.getId();
+
+ Bitmap captcha = null;
+ if (blob != null) {
+ try {
+ final String base64Blob = blob.getContent();
+ final byte[] strBlob = Base64.decode(base64Blob, Base64.DEFAULT);
+ InputStream stream = new ByteArrayInputStream(strBlob);
+ captcha = BitmapFactory.decodeStream(stream);
+ } catch (Exception e) {
+ //ignored
+ }
+ } else {
+ try {
+ Field url = data.getFieldByName("url");
+ String urlString = url.findChildContent("value");
+ URL uri = new URL(urlString);
+ captcha = BitmapFactory.decodeStream(uri.openConnection().getInputStream());
+ } catch (IOException e) {
+ Logging.e(Config.LOGTAG, e.toString());
+ }
+ }
+
+ if (captcha != null) {
+ failed = !mXmppConnectionService.displayCaptchaRequest(account, id, data, captcha);
+ }
+ } else {
+ failed = true;
+ }
+
+ if (failed) {
+ final Element instructions = packet.query().findChild("instructions");
+ setAccountCreationFailed((instructions != null) ? instructions.getContent() : "");
+ }
+ }
+ });
+ }
+
+ private void setAccountCreationFailed(String instructions) {
+ changeStatus(Account.State.REGISTRATION_FAILED);
+ disconnect(true);
+ Log.d(Config.LOGTAG, account.getJid().toBareJid()
+ + ": could not register. instructions are"
+ + instructions);
+ }
+
+ public void resetEverything() {
+ resetStreamId();
+ clearIqCallbacks();
+ mStanzaQueue.clear();
+ synchronized (this.disco) {
+ disco.clear();
+ }
+ }
+
+ private void sendBindRequest() {
+ while(!mXmppConnectionService.areMessagesInitialized() && socket != null && !socket.isClosed()) {
+ try {
+ Thread.sleep(500);
+ } catch (final InterruptedException ignored) {
+ }
+ }
+ needsBinding = false;
+ clearIqCallbacks();
+ final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
+ iq.addChild("bind", "urn:ietf:params:xml:ns:xmpp-bind")
+ .addChild("resource").setContent(account.getResource());
+ this.sendUnmodifiedIqPacket(iq, new OnIqPacketReceived() {
+ @Override
+ public void onIqPacketReceived(final Account account, final IqPacket packet) {
+ if (packet.getType() == IqPacket.TYPE.TIMEOUT) {
+ return;
+ }
+ final Element bind = packet.findChild("bind");
+ if (bind != null && packet.getType() == IqPacket.TYPE.RESULT) {
+ final Element jid = bind.findChild("jid");
+ if (jid != null && jid.getContent() != null) {
+ try {
+ account.setResource(Jid.fromString(jid.getContent()).getResourcepart());
+ } catch (final InvalidJidException e) {
+ // TODO: Handle the case where an external JID is technically invalid?
+ }
+ if (streamFeatures.hasChild("session")) {
+ sendStartSession();
+ } else {
+ sendPostBindInitialization();
+ }
+ } else {
+ Logging.d(Config.LOGTAG, account.getJid() + ": disconnecting because of bind failure. (no jid)");
+ disconnect(true);
+ }
+ } else {
+ Logging.d(Config.LOGTAG, account.getJid() + ": disconnecting because of bind failure ("+packet.toString());
+ disconnect(true);
+ }
+ }
+ });
+ }
+
+ private void clearIqCallbacks() {
+ final IqPacket failurePacket = new IqPacket(IqPacket.TYPE.TIMEOUT);
+ final ArrayList<OnIqPacketReceived> callbacks = new ArrayList<>();
+ synchronized (this.packetCallbacks) {
+ if (this.packetCallbacks.size() == 0) {
+ return;
+ }
+ Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": clearing "+this.packetCallbacks.size()+" iq callbacks");
+ final Iterator<Pair<IqPacket, OnIqPacketReceived>> iterator = this.packetCallbacks.values().iterator();
+ while (iterator.hasNext()) {
+ Pair<IqPacket, OnIqPacketReceived> entry = iterator.next();
+ callbacks.add(entry.second);
+ iterator.remove();
+ }
+ }
+ for(OnIqPacketReceived callback : callbacks) {
+ callback.onIqPacketReceived(account,failurePacket);
+ }
+ Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": done clearing iq callbacks. " + this.packetCallbacks.size() + " left");
+ }
+
+ public void sendDiscoTimeout() {
+ final IqPacket failurePacket = new IqPacket(IqPacket.TYPE.ERROR); //don't use timeout
+ final ArrayList<OnIqPacketReceived> callbacks = new ArrayList<>();
+ synchronized (this.mPendingServiceDiscoveriesIds) {
+ for(String id : mPendingServiceDiscoveriesIds) {
+ synchronized (this.packetCallbacks) {
+ Pair<IqPacket, OnIqPacketReceived> pair = this.packetCallbacks.remove(id);
+ if (pair != null) {
+ callbacks.add(pair.second);
+ }
+ }
+ }
+ this.mPendingServiceDiscoveriesIds.clear();
+ }
+ if (callbacks.size() > 0) {
+ Log.d(Config.LOGTAG,account.getJid().toBareJid()+": sending disco timeout");
+ resetStreamId(); //we don't want to live with this for ever
+ }
+ for(OnIqPacketReceived callback : callbacks) {
+ callback.onIqPacketReceived(account,failurePacket);
+ }
+ }
+
+ private void sendStartSession() {
+ final IqPacket startSession = new IqPacket(IqPacket.TYPE.SET);
+ startSession.addChild("session", "urn:ietf:params:xml:ns:xmpp-session");
+ this.sendUnmodifiedIqPacket(startSession, new OnIqPacketReceived() {
+ @Override
+ public void onIqPacketReceived(Account account, IqPacket packet) {
+ if (packet.getType() == IqPacket.TYPE.RESULT) {
+ sendPostBindInitialization();
+ } else if (packet.getType() != IqPacket.TYPE.TIMEOUT) {
+ Logging.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not init sessions");
+ disconnect(true);
+ }
+ }
+ });
+ }
+
+ private void sendPostBindInitialization() {
+ smVersion = 0;
+ if (streamFeatures.hasChild("sm", "urn:xmpp:sm:3")) {
+ smVersion = 3;
+ } else if (streamFeatures.hasChild("sm", "urn:xmpp:sm:2")) {
+ smVersion = 2;
+ }
+ if (smVersion != 0) {
+ final EnablePacket enable = new EnablePacket(smVersion);
+ tagWriter.writeStanzaAsync(enable);
+ stanzasSent = 0;
+ mStanzaQueue.clear();
+ }
+ features.carbonsEnabled = false;
+ features.blockListRequested = false;
+ synchronized (this.disco) {
+ this.disco.clear();
+ }
+ mPendingServiceDiscoveries = mServerIdentity == Identity.NIMBUZZ ? 1 : 0;
+ lastDiscoStarted = SystemClock.elapsedRealtime();
+ Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": starting service discovery");
+ mXmppConnectionService.scheduleWakeUpCall(Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
+ sendServiceDiscoveryItems(account.getServer());
+ Element caps = streamFeatures.findChild("c");
+ final String hash = caps == null ? null : caps.getAttribute("hash");
+ final String ver = caps == null ? null : caps.getAttribute("ver");
+ ServiceDiscoveryResult discoveryResult = null;
+ if (hash != null && ver != null) {
+ discoveryResult = mXmppConnectionService.databaseBackend.findDiscoveryResult(hash, ver);
+ }
+ if (discoveryResult == null) {
+ sendServiceDiscoveryInfo(account.getServer());
+ } else {
+ Log.d(Config.LOGTAG,account.getJid().toBareJid()+": server caps came from cache");
+ disco.put(account.getServer(), discoveryResult);
+ }
+ sendServiceDiscoveryInfo(account.getJid().toBareJid());
+ this.lastSessionStarted = SystemClock.elapsedRealtime();
+ }
+
+ private void sendServiceDiscoveryInfo(final Jid jid) {
+ if (mServerIdentity != Identity.NIMBUZZ) {
+ mPendingServiceDiscoveries++;
+ }
+ final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
+ iq.setTo(jid);
+ iq.query("http://jabber.org/protocol/disco#info");
+ String id = this.sendIqPacket(iq, new OnIqPacketReceived() {
+
+ @Override
+ public void onIqPacketReceived(final Account account, final IqPacket packet) {
+ if (packet.getType() == IqPacket.TYPE.RESULT) {
+ boolean advancedStreamFeaturesLoaded;
+ synchronized (XmppConnection.this.disco) {
+ ServiceDiscoveryResult result = new ServiceDiscoveryResult(packet);
+ for (final ServiceDiscoveryResult.Identity id : result.getIdentities()) {
+ if (mServerIdentity == Identity.UNKNOWN && id.getType().equals("im") &&
+ id.getCategory().equals("server") && id.getName() != null &&
+ jid.equals(account.getServer())) {
+ switch (id.getName()) {
+ case "Prosody":
+ mServerIdentity = Identity.PROSODY;
+ break;
+ case "ejabberd":
+ mServerIdentity = Identity.EJABBERD;
+ break;
+ case "Slack-XMPP":
+ mServerIdentity = Identity.SLACK;
+ break;
+ }
+ Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": server name: " + id.getName());
+ }
+ }
+ if (jid.equals(account.getServer())) {
+ mXmppConnectionService.databaseBackend.insertDiscoveryResult(result);
+ }
+ disco.put(jid, result);
+ advancedStreamFeaturesLoaded = disco.containsKey(account.getServer())
+ && disco.containsKey(account.getJid().toBareJid());
+ }
+ if (advancedStreamFeaturesLoaded && (jid.equals(account.getServer()) || jid.equals(account.getJid().toBareJid()))) {
+ enableAdvancedStreamFeatures();
+ }
+ } else {
+ Logging.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not query disco info for " + jid.toString());
+ }
+ if (packet.getType() != IqPacket.TYPE.TIMEOUT) {
+ mPendingServiceDiscoveries--;
+ if (mPendingServiceDiscoveries == 0) {
+ Logging.d(Config.LOGTAG,account.getJid().toBareJid()+": done with service discovery");
+ Logging.d(Config.LOGTAG, account.getJid().toBareJid() + ": online with resource " + account.getResource());
+ if (bindListener != null) {
+ bindListener.onBind(account);
+ }
+ changeStatus(Account.State.ONLINE);
+ }
+ }
+ }
+ });
+ synchronized (this.mPendingServiceDiscoveriesIds) {
+ this.mPendingServiceDiscoveriesIds.add(id);
+ }
+ }
+
+ private void enableAdvancedStreamFeatures() {
+ if (getFeatures().carbons() && !features.carbonsEnabled) {
+ sendEnableCarbons();
+ }
+ if (getFeatures().blocking() && !features.blockListRequested) {
+ Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": Requesting block list");
+ this.sendIqPacket(getIqGenerator().generateGetBlockList(), mXmppConnectionService.getIqParser());
+ }
+ for (final OnAdvancedStreamFeaturesLoaded listener : advancedStreamFeaturesLoadedListeners) {
+ listener.onAdvancedStreamFeaturesAvailable(account);
+ }
+ }
+
+ private void sendServiceDiscoveryItems(final Jid server) {
+ final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
+ iq.setTo(server.toDomainJid());
+ iq.query("http://jabber.org/protocol/disco#items");
+ this.sendIqPacket(iq, new OnIqPacketReceived() {
+
+ @Override
+ public void onIqPacketReceived(final Account account, final IqPacket packet) {
+ if (packet.getType() == IqPacket.TYPE.RESULT) {
+ final List<Element> elements = packet.query().getChildren();
+ for (final Element element : elements) {
+ if (element.getName().equals("item")) {
+ final Jid jid = element.getAttributeAsJid("jid");
+ if (jid != null && !jid.equals(account.getServer())) {
+ sendServiceDiscoveryInfo(jid);
+ }
+ }
+ }
+ } else {
+ Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not query disco items of " + server);
+ }
+ }
+ });
+ }
+
+ private void sendEnableCarbons() {
+ final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
+ iq.addChild("enable", "urn:xmpp:carbons:2");
+ this.sendIqPacket(iq, new OnIqPacketReceived() {
+
+ @Override
+ public void onIqPacketReceived(final Account account, final IqPacket packet) {
+ if (!packet.hasChild("error")) {
+ Logging.d(Config.LOGTAG, account.getJid().toBareJid()
+ + ": successfully enabled carbons");
+ features.carbonsEnabled = true;
+ } else {
+ Logging.d(Config.LOGTAG, account.getJid().toBareJid()
+ + ": error enableing carbons " + packet.toString());
+ }
+ }
+ });
+ }
+
+ private void processStreamError(final Tag currentTag)
+ throws XmlPullParserException, IOException {
+ final Element streamError = tagReader.readElement(currentTag);
+ if (streamError != null && streamError.hasChild("conflict")) {
+ final String resource = account.getResource().split("\\.")[0];
+ account.setResource(resource + "." + nextRandomId());
+ Logging.d(Config.LOGTAG,
+ account.getJid().toBareJid() + ": switching resource due to conflict ("
+ + account.getResource() + ")");
+ } else if (streamError != null) {
+ Logging.d(Config.LOGTAG,account.getJid().toBareJid()+": stream error "+streamError.toString());
+ }
+ }
+
+ private void sendStartStream() throws IOException {
+ final Tag stream = Tag.start("stream:stream");
+ stream.setAttribute("to", account.getServer().toString());
+ stream.setAttribute("version", "1.0");
+ stream.setAttribute("xml:lang", "en");
+ stream.setAttribute("xmlns", "jabber:client");
+ stream.setAttribute("xmlns:stream", "http://etherx.jabber.org/streams");
+ tagWriter.writeTag(stream);
+ }
+
+ private String nextRandomId() {
+ return new BigInteger(50, mXmppConnectionService.getRNG()).toString(32);
+ }
+
+ public String sendIqPacket(final IqPacket packet, final OnIqPacketReceived callback) {
+ packet.setFrom(account.getJid());
+ return this.sendUnmodifiedIqPacket(packet, callback);
+ }
+
+ private synchronized String sendUnmodifiedIqPacket(final IqPacket packet, final OnIqPacketReceived callback) {
+ if (packet.getId() == null) {
+ final String id = nextRandomId();
+ packet.setAttribute("id", id);
+ }
+ if (callback != null) {
+ synchronized (this.packetCallbacks) {
+ packetCallbacks.put(packet.getId(), new Pair<>(packet, callback));
+ }
+ }
+ this.sendPacket(packet);
+ return packet.getId();
+ }
+
+ public void sendMessagePacket(final MessagePacket packet) {
+ this.sendPacket(packet);
+ }
+
+ public void sendPresencePacket(final PresencePacket packet) {
+ this.sendPacket(packet);
+ }
+
+ private synchronized void sendPacket(final AbstractStanza packet) {
+ if (stanzasSent == Integer.MAX_VALUE) {
+ resetStreamId();
+ disconnect(true);
+ return;
+ }
+ tagWriter.writeStanzaAsync(packet);
+ if (packet instanceof AbstractAcknowledgeableStanza) {
+ AbstractAcknowledgeableStanza stanza = (AbstractAcknowledgeableStanza) packet;
+ ++stanzasSent;
+ this.mStanzaQueue.put(stanzasSent, stanza);
+ if (stanza instanceof MessagePacket && stanza.getId() != null && getFeatures().sm()) {
+ if (Config.EXTENDED_SM_LOGGING) {
+ Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": requesting ack for message stanza #" + stanzasSent);
+ }
+ tagWriter.writeStanzaAsync(new RequestPacket(this.smVersion));
+ }
+ }
+ }
+
+ public void sendPing() {
+ if (!r()) {
+ final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
+ iq.setFrom(account.getJid());
+ iq.addChild("ping", "urn:xmpp:ping");
+ this.sendIqPacket(iq, null);
+ }
+ this.lastPingSent = SystemClock.elapsedRealtime();
+ }
+
+ public void setOnMessagePacketReceivedListener(
+ final OnMessagePacketReceived listener) {
+ this.messageListener = listener;
+ }
+
+ public void setOnUnregisteredIqPacketReceivedListener(
+ final OnIqPacketReceived listener) {
+ this.unregisteredIqListener = listener;
+ }
+
+ public void setOnPresencePacketReceivedListener(
+ final OnPresencePacketReceived listener) {
+ this.presenceListener = listener;
+ }
+
+ public void setOnJinglePacketReceivedListener(
+ final OnJinglePacketReceived listener) {
+ this.jingleListener = listener;
+ }
+
+ public void setOnStatusChangedListener(final OnStatusChanged listener) {
+ this.statusListener = listener;
+ }
+
+ public void setOnBindListener(final OnBindListener listener) {
+ this.bindListener = listener;
+ }
+
+ public void setOnMessageAcknowledgeListener(final OnMessageAcknowledged listener) {
+ this.acknowledgedListener = listener;
+ }
+
+ public void addOnAdvancedStreamFeaturesAvailableListener(final OnAdvancedStreamFeaturesLoaded listener) {
+ if (!this.advancedStreamFeaturesLoadedListeners.contains(listener)) {
+ this.advancedStreamFeaturesLoadedListeners.add(listener);
+ }
+ }
+
+ public void waitForPush() {
+ if (tagWriter.isActive()) {
+ tagWriter.finish();
+ new Thread(new Runnable() {
+ @Override
+ public void run() {
+ try {
+ while(!tagWriter.finished()) {
+ Thread.sleep(10);
+ }
+ socket.close();
+ Logging.d(Config.LOGTAG,account.getJid().toBareJid()+": closed tcp without closing stream");
+ } catch (IOException e) {
+ e.printStackTrace();
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ }
+ }).start();
+ } else {
+ forceCloseSocket();
+ Logging.d(Config.LOGTAG, account.getJid().toBareJid() + ": closed tcp without closing stream (no waiting)");
+ }
+ }
+
+ private void forceCloseSocket() {
+ if (socket != null) {
+ try {
+ socket.close();
+ } catch (IOException e) {
+ Logging.d(Config.LOGTAG,account.getJid().toBareJid().toString()+": exception during force close ("+e.getMessage()+")");
+ }
+ }
+ }
+
+ public void disconnect(final boolean force) {
+ Logging.d(Config.LOGTAG, account.getJid().toBareJid() + ": disconnecting force="+Boolean.valueOf(force));
+ if (force) {
+ forceCloseSocket();
+ return;
+ } else {
+ if (tagWriter.isActive()) {
+ tagWriter.finish();
+ try {
+ int i = 0;
+ boolean warned = false;
+ while (!tagWriter.finished() && socket.isConnected() && i <= 10) {
+ if (!warned) {
+ Log.d(Config.LOGTAG, account.getJid().toBareJid()+": waiting for tag writer to finish");
+ warned = true;
+ }
+ Thread.sleep(200);
+ i++;
+ }
+ if (warned) {
+ Log.d(Config.LOGTAG,account.getJid().toBareJid()+": tag writer has finished");
+ }
+ Log.d(Config.LOGTAG,account.getJid().toBareJid()+": closing stream");
+ tagWriter.writeTag(Tag.end("stream:stream"));
+ } catch (final IOException e) {
+ Log.d(Config.LOGTAG,account.getJid().toBareJid()+": io exception during disconnect ("+e.getMessage()+")");
+ } catch (final InterruptedException e) {
+ Log.d(Config.LOGTAG, "interrupted");
+ }
+ }
+ }
+ }
+
+ public void resetStreamId() {
+ this.streamId = null;
+ }
+
+ public List<Jid> findDiscoItemsByFeature(final String feature) {
+ synchronized (this.disco) {
+ final List<Jid> items = new ArrayList<>();
+ for (final Entry<Jid, ServiceDiscoveryResult> cursor : this.disco.entrySet()) {
+ if (cursor.getValue().getFeatures().contains(feature)) {
+ items.add(cursor.getKey());
+ }
+ }
+ return items;
+ }
+ }
+
+ public Jid findDiscoItemByFeature(final String feature) {
+ final List<Jid> items = findDiscoItemsByFeature(feature);
+ if (items.size() >= 1) {
+ return items.get(0);
+ }
+ return null;
+ }
+
+ public boolean r() {
+ if (getFeatures().sm()) {
+ this.tagWriter.writeStanzaAsync(new RequestPacket(smVersion));
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ public String getMucServer() {
+ synchronized (this.disco) {
+ for (final Entry<Jid, ServiceDiscoveryResult> cursor : disco.entrySet()) {
+ final ServiceDiscoveryResult value = cursor.getValue();
+ if (value.getFeatures().contains("http://jabber.org/protocol/muc")
+ && !value.getFeatures().contains("jabber:iq:gateway")
+ && !value.hasIdentity("conference", "irc")) {
+ return cursor.getKey().toString();
+ }
+ }
+ }
+ return null;
+ }
+
+ public int getTimeToNextAttempt() {
+ final int interval = (int) (25 * Math.pow(1.5, attempt));
+ final int secondsSinceLast = (int) ((SystemClock.elapsedRealtime() - this.lastConnect) / 1000);
+ return interval - secondsSinceLast;
+ }
+
+ public int getAttempt() {
+ return this.attempt;
+ }
+
+ public Features getFeatures() {
+ return this.features;
+ }
+
+ public long getLastSessionEstablished() {
+ final long diff;
+ if (this.lastSessionStarted == 0) {
+ diff = SystemClock.elapsedRealtime() - this.lastConnect;
+ } else {
+ diff = SystemClock.elapsedRealtime() - this.lastSessionStarted;
+ }
+ return System.currentTimeMillis() - diff;
+ }
+
+ public long getLastConnect() {
+ return this.lastConnect;
+ }
+
+ public long getLastPingSent() {
+ return this.lastPingSent;
+ }
+
+ public long getLastDiscoStarted() {
+ return this.lastDiscoStarted;
+ }
+ public long getLastPacketReceived() {
+ return this.lastPacketReceived;
+ }
+
+ public void sendActive() {
+ this.sendPacket(new ActivePacket());
+ }
+
+ public void sendInactive() {
+ this.sendPacket(new InactivePacket());
+ }
+
+ public void resetAttemptCount() {
+ this.attempt = 0;
+ this.lastConnect = 0;
+ }
+
+ public void setInteractive(boolean interactive) {
+ this.mInteractive = interactive;
+ }
+
+ public Identity getServerIdentity() {
+ return mServerIdentity;
+ }
+
+ private class UnauthorizedException extends IOException {
+
+ }
+
+ private class SecurityException extends IOException {
+
+ }
+
+ private class IncompatibleServerException extends IOException {
+
+ }
+
+ public enum Identity {
+ FACEBOOK,
+ SLACK,
+ EJABBERD,
+ PROSODY,
+ NIMBUZZ,
+ UNKNOWN
+ }
+
+ public class Features {
+ XmppConnection connection;
+ private boolean carbonsEnabled = false;
+ private boolean encryptionEnabled = false;
+ private boolean blockListRequested = false;
+
+ public Features(final XmppConnection connection) {
+ this.connection = connection;
+ }
+
+ private boolean hasDiscoFeature(final Jid server, final String feature) {
+ synchronized (XmppConnection.this.disco) {
+ return connection.disco.containsKey(server) &&
+ connection.disco.get(server).getFeatures().contains(feature);
+ }
+ }
+
+ public boolean carbons() {
+ return hasDiscoFeature(account.getServer(), "urn:xmpp:carbons:2");
+ }
+
+ public boolean blocking() {
+ return hasDiscoFeature(account.getServer(), Xmlns.BLOCKING);
+ }
+
+ public boolean register() {
+ return hasDiscoFeature(account.getServer(), Xmlns.REGISTER);
+ }
+
+ public boolean sm() {
+ return streamId != null
+ || (connection.streamFeatures != null && connection.streamFeatures.hasChild("sm"));
+ }
+
+ public boolean csi() {
+ return connection.streamFeatures != null && connection.streamFeatures.hasChild("csi", "urn:xmpp:csi:0");
+ }
+
+ public boolean pep() {
+ synchronized (XmppConnection.this.disco) {
+ final Pair<String, String> needle = new Pair<>("pubsub", "pep");
+ ServiceDiscoveryResult info = disco.get(account.getServer());
+ if (info != null && info.hasIdentity("pubsub", "pep")) {
+ return true;
+ } else {
+ info = disco.get(account.getJid().toBareJid());
+ return info != null && info.hasIdentity("pubsub", "pep");
+ }
+ }
+ }
+
+ public boolean mam() {
+ return hasDiscoFeature(account.getJid().toBareJid(), "urn:xmpp:mam:0")
+ || hasDiscoFeature(account.getServer(), "urn:xmpp:mam:0");
+ }
+
+ public boolean push() {
+ return hasDiscoFeature(account.getJid().toBareJid(), "urn:xmpp:push:0")
+ || hasDiscoFeature(account.getServer(), "urn:xmpp:push:0");
+ }
+
+ public boolean rosterVersioning() {
+ return connection.streamFeatures != null && connection.streamFeatures.hasChild("ver");
+ }
+
+ public void setBlockListRequested(boolean value) {
+ this.blockListRequested = value;
+ }
+
+ public boolean httpUpload() {
+ return !Config.DISABLE_HTTP_UPLOAD && findDiscoItemsByFeature(Xmlns.HTTP_UPLOAD).size() > 0;
+ }
+ }
+
+ private IqGenerator getIqGenerator() {
+ return mXmppConnectionService.getIqGenerator();
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 16:57:10 +0000