private void switchOverToZLib(Tag currentTag)
throws XmlPullParserException, IOException, NoSuchAlgorithmException {
tagReader.readTag(); // read tag close
tagWriter.setOutputStream(new ZLibOutputStream(tagWriter.getOutputStream()));
tagReader.setInputStream(new ZLibInputStream(tagReader.getInputStream()));
sendStartStream();
Log.d(LOGTAG, account.getJid() + ": compression enabled");
processStream(tagReader.readTag());
}
private void sendSaslAuthPlain() throws IOException {
String saslString = CryptoHelper.saslPlain(account.getUsername(), account.getPassword());
Element auth = new Element("auth");
auth.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-sasl");
auth.setAttribute("mechanism", "PLAIN");
auth.setContent(saslString);
tagWriter.writeElement(auth);
}
public void sendPing() {
if (streamFeatures.hasChild("sm")) {
tagWriter.writeStanzaAsync(new RequestPacket(smVersion));
} else {
IqPacket iq = new IqPacket(IqPacket.TYPE_GET);
iq.setFrom(account.getFullJid());
iq.addChild("ping", "urn:xmpp:ping");
this.sendIqPacket(iq, null);
}
}
private void sendStartStream() throws IOException {
Tag stream = Tag.start("stream:stream");
stream.setAttribute("from", account.getJid());
stream.setAttribute("to", account.getServer());
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 synchronized void sendPacket(final AbstractStanza packet, PacketReceived callback) {
// TODO dont increment stanza count if packet = request packet or ack;
++stanzasSent;
tagWriter.writeStanzaAsync(packet);
if (callback != null) {
if (packet.getId() == null) {
packet.setId(nextRandomId());
}
packetCallbacks.put(packet.getId(), callback);
}
}
public void disconnect(boolean force) {
changeStatus(Account.STATUS_OFFLINE);
Log.d(LOGTAG, "disconnecting");
try {
if (force) {
socket.close();
return;
}
if (tagWriter.isActive()) {
tagWriter.finish();
while (!tagWriter.finished()) {
// Log.d(LOGTAG,"not yet finished");
Thread.sleep(100);
}
tagWriter.writeTag(Tag.end("stream:stream"));
}
} catch (IOException e) {
Log.d(LOGTAG, "io exception during disconnect");
} catch (InterruptedException e) {
Log.d(LOGTAG, "interupted while waiting for disconnect");
}
}
private void sendSaslAuthDigestMd5() throws IOException {
Element auth = new Element("auth");
auth.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-sasl");
auth.setAttribute("mechanism", "DIGEST-MD5");
tagWriter.writeElement(auth);
}
private void switchOverToTls(Tag currentTag) throws XmlPullParserException, IOException {
Tag nextTag = tagReader.readTag(); // should be proceed end tag
try {
SSLContext sc = SSLContext.getInstance("TLS");
TrustManagerFactory tmf =
TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
// Initialise the TMF as you normally would, for example:
// tmf.in
try {
tmf.init((KeyStore) null);
} catch (KeyStoreException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
TrustManager[] trustManagers = tmf.getTrustManagers();
final X509TrustManager origTrustmanager = (X509TrustManager) trustManagers[0];
TrustManager[] wrappedTrustManagers =
new TrustManager[] {
new X509TrustManager() {
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
origTrustmanager.checkClientTrusted(chain, authType);
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
try {
origTrustmanager.checkServerTrusted(chain, authType);
} catch (CertificateException e) {
if (e.getCause() instanceof CertPathValidatorException) {
String sha;
try {
MessageDigest sha1 = MessageDigest.getInstance("SHA1");
sha1.update(chain[0].getEncoded());
sha = CryptoHelper.bytesToHex(sha1.digest());
if (!sha.equals(account.getSSLFingerprint())) {
changeStatus(Account.STATUS_TLS_ERROR);
if (tlsListener != null) {
tlsListener.onTLSExceptionReceived(sha, account);
}
throw new CertificateException();
}
} catch (NoSuchAlgorithmException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
} else {
throw new CertificateException();
}
}
}
@Override
public X509Certificate[] getAcceptedIssuers() {
return origTrustmanager.getAcceptedIssuers();
}
}
};
sc.init(null, wrappedTrustManagers, null);
SSLSocketFactory factory = sc.getSocketFactory();
SSLSocket sslSocket =
(SSLSocket)
factory.createSocket(
socket, socket.getInetAddress().getHostAddress(), socket.getPort(), true);
tagReader.setInputStream(sslSocket.getInputStream());
tagWriter.setOutputStream(sslSocket.getOutputStream());
sendStartStream();
Log.d(LOGTAG, account.getJid() + ": TLS connection established");
processStream(tagReader.readTag());
sslSocket.close();
} catch (NoSuchAlgorithmException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (KeyManagementException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void sendStartTLS() throws IOException {
Tag startTLS = Tag.empty("starttls");
startTLS.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-tls");
tagWriter.writeTag(startTLS);
}
private void sendCompressionZlib() throws IOException {
Element compress = new Element("compress");
compress.setAttribute("xmlns", "http://jabber.org/protocol/compress");
compress.addChild("method").setContent("zlib");
tagWriter.writeElement(compress);
}
private void processStream(Tag currentTag)
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);
if ((streamFeatures.getChildren().size() == 1)
&& (streamFeatures.hasChild("starttls"))
&& (!account.isOptionSet(Account.OPTION_USETLS))) {
changeStatus(Account.STATUS_SERVER_REQUIRES_TLS);
}
} else if (nextTag.isStart("proceed")) {
switchOverToTls(nextTag);
} else if (nextTag.isStart("compressed")) {
switchOverToZLib(nextTag);
} else if (nextTag.isStart("success")) {
Log.d(LOGTAG, account.getJid() + ": logged in");
tagReader.readTag();
tagReader.reset();
sendStartStream();
processStream(tagReader.readTag());
break;
} else if (nextTag.isStart("failure")) {
Element failure = tagReader.readElement(nextTag);
changeStatus(Account.STATUS_UNAUTHORIZED);
} else if (nextTag.isStart("challenge")) {
String challange = tagReader.readElement(nextTag).getContent();
Element response = new Element("response");
response.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-sasl");
response.setContent(CryptoHelper.saslDigestMd5(account, challange));
tagWriter.writeElement(response);
} else if (nextTag.isStart("enabled")) {
this.stanzasSent = 0;
Element enabled = tagReader.readElement(nextTag);
if ("true".equals(enabled.getAttribute("resume"))) {
this.streamId = enabled.getAttribute("id");
Log.d(
LOGTAG,
account.getJid() + ": stream managment(" + smVersion + ") enabled (resumable)");
} else {
Log.d(LOGTAG, account.getJid() + ": stream managment(" + smVersion + ") enabled");
}
this.lastSessionStarted = SystemClock.elapsedRealtime();
this.stanzasReceived = 0;
RequestPacket r = new RequestPacket(smVersion);
tagWriter.writeStanzaAsync(r);
} else if (nextTag.isStart("resumed")) {
tagReader.readElement(nextTag);
sendPing();
changeStatus(Account.STATUS_ONLINE);
Log.d(LOGTAG, account.getJid() + ": session resumed");
} else if (nextTag.isStart("r")) {
tagReader.readElement(nextTag);
AckPacket ack = new AckPacket(this.stanzasReceived, smVersion);
// Log.d(LOGTAG,ack.toString());
tagWriter.writeStanzaAsync(ack);
} else if (nextTag.isStart("a")) {
Element ack = tagReader.readElement(nextTag);
lastPaketReceived = SystemClock.elapsedRealtime();
int serverSequence = Integer.parseInt(ack.getAttribute("h"));
if (serverSequence > this.stanzasSent) {
this.stanzasSent = serverSequence;
}
// Log.d(LOGTAG,"server ack"+ack.toString()+" ("+this.stanzasSent+")");
} else if (nextTag.isStart("failed")) {
tagReader.readElement(nextTag);
Log.d(LOGTAG, account.getJid() + ": resumption failed");
streamId = null;
if (account.getStatus() != Account.STATUS_ONLINE) {
sendBindRequest();
}
} else if (nextTag.isStart("iq")) {
processIq(nextTag);
} else if (nextTag.isStart("message")) {
processMessage(nextTag);
} else if (nextTag.isStart("presence")) {
processPresence(nextTag);
} else {
Log.d(
LOGTAG,
"found unexpected tag: " + nextTag.getName() + " as child of " + currentTag.getName());
}
nextTag = tagReader.readTag();
}
if (account.getStatus() == Account.STATUS_ONLINE) {
account.setStatus(Account.STATUS_OFFLINE);
if (statusListener != null) {
statusListener.onStatusChanged(account);
}
}
}
protected void connect() {
Log.d(LOGTAG, account.getJid() + ": connecting");
lastConnect = SystemClock.elapsedRealtime();
try {
shouldAuthenticate = shouldBind = !account.isOptionSet(Account.OPTION_REGISTER);
tagReader = new XmlReader(wakeLock);
tagWriter = new TagWriter();
packetCallbacks.clear();
this.changeStatus(Account.STATUS_CONNECTING);
Bundle namePort = DNSHelper.getSRVRecord(account.getServer());
if ("timeout".equals(namePort.getString("error"))) {
Log.d(LOGTAG, account.getJid() + ": dns timeout");
this.changeStatus(Account.STATUS_OFFLINE);
return;
}
String srvRecordServer = namePort.getString("name");
String srvIpServer = namePort.getString("ipv4");
int srvRecordPort = namePort.getInt("port");
if (srvRecordServer != null) {
if (srvIpServer != null) {
Log.d(
LOGTAG,
account.getJid()
+ ": using values from dns "
+ srvRecordServer
+ "["
+ srvIpServer
+ "]:"
+ srvRecordPort);
socket = new Socket(srvIpServer, srvRecordPort);
} else {
Log.d(
LOGTAG,
account.getJid()
+ ": using values from dns "
+ srvRecordServer
+ ":"
+ srvRecordPort);
socket = new Socket(srvRecordServer, srvRecordPort);
}
} else {
socket = new Socket(account.getServer(), 5222);
}
OutputStream out = socket.getOutputStream();
tagWriter.setOutputStream(out);
InputStream in = socket.getInputStream();
tagReader.setInputStream(in);
tagWriter.beginDocument();
sendStartStream();
Tag nextTag;
while ((nextTag = tagReader.readTag()) != null) {
if (nextTag.isStart("stream")) {
processStream(nextTag);
break;
} else {
Log.d(LOGTAG, "found unexpected tag: " + nextTag.getName());
return;
}
}
if (socket.isConnected()) {
socket.close();
}
} catch (UnknownHostException e) {
this.changeStatus(Account.STATUS_SERVER_NOT_FOUND);
if (wakeLock.isHeld()) {
wakeLock.release();
}
return;
} catch (IOException e) {
if (account.getStatus() != Account.STATUS_TLS_ERROR) {
this.changeStatus(Account.STATUS_OFFLINE);
}
if (wakeLock.isHeld()) {
wakeLock.release();
}
return;
} catch (NoSuchAlgorithmException e) {
this.changeStatus(Account.STATUS_OFFLINE);
Log.d(LOGTAG, "compression exception " + e.getMessage());
if (wakeLock.isHeld()) {
wakeLock.release();
}
return;
} catch (XmlPullParserException e) {
this.changeStatus(Account.STATUS_OFFLINE);
Log.d(LOGTAG, "xml exception " + e.getMessage());
if (wakeLock.isHeld()) {
wakeLock.release();
}
return;
}
}
