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Code Issues Releases Wiki Activity

Big change for authentication, which now supports more SASL mechanisms and

Browse source 
callbacks.  This should address issues SMACK-210 and SMACK-142, as well as 
set the stage for SMACK-234. 



git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@9498 b35dd754-fafc-0310-a699-88a17e54d16e
This commit is contained in:
Jay Kline 2007-11-14 16:27:47 +00:00 committed by jay
parent 85a92b600b
commit 13b8d313ba
14 changed files with 801 additions and 189 deletions
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66
source/org/jivesoftware/smack/ConnectionConfiguration.java
View file

@ -44,6 +44,9 @@ public class ConnectionConfiguration implements Cloneable {
private String truststorePath;
private String truststoreType;
private String truststorePassword;
private String keystorePath;
private String keystoreType;
private String keystorePassword;
private boolean verifyChainEnabled = false;
private boolean verifyRootCAEnabled = false;
private boolean selfSignedCertificateEnabled = false;
@ -128,6 +131,9 @@ public class ConnectionConfiguration implements Cloneable {
truststoreType = "jks";
// Set the default password of the cacert file that is "changeit"
truststorePassword = "changeit";
keystorePath = System.getProperty("javax.net.ssl.keyStore");
keystoreType = "jks";
keystorePassword = "changeit";
}
/**
@ -240,6 +246,66 @@ public class ConnectionConfiguration implements Cloneable {
this.truststorePassword = truststorePassword;
}
/**
* Retuns the path to the keystore file. The key store file contains the
* certificates that may be used to authenticate the client to the server,
* in the event the server requests or requires it.
*
* @return the path to the keystore file.
*/
public String getKeystorePath() {
return keystorePath;
}
/**
* Sets the path to the keystore file. The key store file contains the
* certificates that may be used to authenticate the client to the server,
* in the event the server requests or requires it.
*
* @param keystorePath the path to the keystore file.
*/
public void setKeystorePath(String keystorePath) {
this.keystorePath = keystorePath;
}
/**
* Returns the keystore type, or <tt>null</tt> if it's not set.
*
* @return the keystore type.
*/
public String getKeystoreType() {
return keystoreType;
}
/**
* Sets the keystore type.
*
* @param keystoreType the keystore type.
*/
public void setKeystoreType(String keystoreType) {
this.keystoreType = keystoreType;
}
/**
* Returns the password to use to access the keystore file. It is assumed that all
* certificates share the same password in the keystore.
*
* @return the password to use to access the keystore file.
*/
public String getKeystorePassword() {
return keystorePassword;
}
/**
* Sets the password to use to access the keystore file. It is assumed that all
* certificates share the same password in the trust store.
*
* @param keystorePassword the password to use to access the keystore file.
*/
public void setKeystorePassword(String keystorePassword) {
this.keystorePassword = keystorePassword;
}
/**
* Returns true if the whole chain of certificates presented by the server are going to
* be checked. By default the certificate chain is not verified.

16
source/org/jivesoftware/smack/NonSASLAuthentication.java
View file

@ -24,6 +24,11 @@ import org.jivesoftware.smack.filter.PacketIDFilter;
import org.jivesoftware.smack.packet.Authentication;
import org.jivesoftware.smack.packet.IQ;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.PasswordCallback;
import javax.security.auth.callback.Callback;
import java.io.IOException;
/**
* Implementation of JEP-0078: Non-SASL Authentication. Follow the following
* <a href=http://www.jabber.org/jeps/jep-0078.html>link</a> to obtain more
@ -40,6 +45,17 @@ class NonSASLAuthentication implements UserAuthentication {
this.connection = connection;
}
public String authenticate(String username, String resource, CallbackHandler cbh) throws XMPPException {
//Use the callback handler to determine the password, and continue on.
PasswordCallback pcb = new PasswordCallback("Password: ",false);
try {
cbh.handle(new Callback[]{pcb});
return authenticate(username, String.valueOf(pcb.getPassword()),resource);
} catch (Exception e) {
throw new XMPPException("Unable to determine password.",e);
}
}
public String authenticate(String username, String password, String resource) throws
XMPPException {
// If we send an authentication packet in "get" mode with just the username,

184
source/org/jivesoftware/smack/SASLAuthentication.java
View file

@ -24,39 +24,49 @@ import org.jivesoftware.smack.filter.PacketIDFilter;
import org.jivesoftware.smack.packet.Bind;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.packet.Session;
import org.jivesoftware.smack.sasl.SASLAnonymous;
import org.jivesoftware.smack.sasl.SASLMechanism;
import org.jivesoftware.smack.sasl.SASLAnonymous;
import org.jivesoftware.smack.sasl.SASLPlainMechanism;
import org.jivesoftware.smack.sasl.SASLCramMD5Mechanism;
import org.jivesoftware.smack.sasl.SASLDigestMD5Mechanism;
import org.jivesoftware.smack.sasl.SASLExternalMechanism;
import org.jivesoftware.smack.sasl.SASLGSSAPIMechanism;
import java.io.IOException;
import java.lang.reflect.Constructor;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.UnsupportedCallbackException;
import java.util.*;
/**
* This class is responsible authenticating the user using SASL, binding the resource
* to the connection and establishing a session with the server.<p>
* <p>This class is responsible authenticating the user using SASL, binding the resource
* to the connection and establishing a session with the server.</p>
*
* Once TLS has been negotiated (i.e. the connection has been secured) it is possible to
* <p>Once TLS has been negotiated (i.e. the connection has been secured) it is possible to
* register with the server, authenticate using Non-SASL or authenticate using SASL. If the
* server supports SASL then Smack will first try to authenticate using SASL. But if that
* fails then Non-SASL will be tried.<p>
* fails then Non-SASL will be tried.</p>
*
* The server may support many SASL mechanisms to use for authenticating. Out of the box
* Smack provides SASL PLAIN but it is possible to register new SASL Mechanisms. Use
* {@link #registerSASLMechanism(int, String, Class)} to add new mechanisms. See
* {@link SASLMechanism}.<p>
* <p>The server may support many SASL mechanisms to use for authenticating. Out of the box
* Smack provides several SASL mechanisms, but it is possible to register new SASL Mechanisms. Use
* {@link #registerSASLMechanism(String, Class)} to register a new mechanisms. A registered
* mechanism wont be used until {@link #supportSASLMechanism(String, int)} is called. By default,
* the list of supported SASL mechanisms is determined from the {@link SmackConfiguration}. </p>
*
* Once the user has been authenticated with SASL, it is necessary to bind a resource for
* <p>Once the user has been authenticated with SASL, it is necessary to bind a resource for
* the connection. If no resource is passed in {@link #authenticate(String, String, String)}
* then the server will assign a resource for the connection. In case a resource is passed
* then the server will receive the desired resource but may assign a modified resource for
* the connection.<p>
* the connection.</p>
*
* Once a resource has been binded and if the server supports sessions then Smack will establish
* a session so that instant messaging and presence functionalities may be used.
* <p>Once a resource has been binded and if the server supports sessions then Smack will establish
* a session so that instant messaging and presence functionalities may be used.</p>
*
* @see org.jivesoftware.smack.sasl.SASLMechanism
*
* @author Gaston Dombiak
* @author Jay Kline
*/
public class SASLAuthentication implements UserAuthentication {
@ -79,31 +89,37 @@ public class SASLAuthentication implements UserAuthentication {
private boolean sessionSupported;
static {
// Register SASL mechanisms supported by Smack
registerSASLMechanism(0, "GSSAPI", SASLGSSAPIMechanism.class);
registerSASLMechanism(1, "PLAIN", SASLPlainMechanism.class);
registerSASLMechanism("EXTERNAL", SASLExternalMechanism.class);
registerSASLMechanism("GSSAPI", SASLGSSAPIMechanism.class);
registerSASLMechanism("DIGEST-MD5", SASLDigestMD5Mechanism.class);
registerSASLMechanism("CRAM-MD5", SASLCramMD5Mechanism.class);
registerSASLMechanism("PLAIN", SASLPlainMechanism.class);
registerSASLMechanism("ANONYMOUS", SASLAnonymous.class);
supportSASLMechanism("GSSAPI",0);
supportSASLMechanism("DIGEST-MD5",1);
supportSASLMechanism("CRAM-MD5",2);
supportSASLMechanism("PLAIN",3);
supportSASLMechanism("ANONYMOUS",4);
}
/**
* Registers a new SASL mechanism in the specified preference position. The client will try
* to authenticate using the most prefered SASL mechanism that is also supported by the server.
* <p/>
* <p/>
* Use the <tt>index</tt> parameter to set the level of preference of the new SASL mechanism.
* A value of 0 means that the mechanism is the most prefered one.
* Registers a new SASL mechanism
*
* @param index preference position amongst all the implemented SASL mechanism. Starts with 0.
* @param name common name of the SASL mechanism. E.g.: PLAIN, DIGEST-MD5 or KERBEROS_V4.
* @param mClass a SASLMechanism subclass.
*/
public static void registerSASLMechanism(int index, String name, Class mClass) {
public static void registerSASLMechanism(String name, Class mClass) {
implementedMechanisms.put(name, mClass);
mechanismsPreferences.add(index, name);
}
/**
* Unregisters an existing SASL mechanism. Once the mechanism has been unregistered it won't
* be possible to authenticate users using the removed SASL mechanism.
* be possible to authenticate users using the removed SASL mechanism. It also removes the
* mechanism from the supported list.
*
* @param name common name of the SASL mechanism. E.g.: PLAIN, DIGEST-MD5 or KERBEROS_V4.
*/
@ -112,6 +128,43 @@ public class SASLAuthentication implements UserAuthentication {
mechanismsPreferences.remove(name);
}
/** Registers a new SASL mechanism in the specified preference position. The client will try
* to authenticate using the most prefered SASL mechanism that is also supported by the server.
* The SASL mechanism must be registered via {@link #registerSASLMechanism(String, Class)
*
* @param name common name of the SASL mechanism. E.g.: PLAIN, DIGEST-MD5 or KERBEROS_V4.
*/
public static void supportSASLMechanism(String name) {
mechanismsPreferences.add(0, name);
}
/** Registers a new SASL mechanism in the specified preference position. The client will try
* to authenticate using the most prefered SASL mechanism that is also supported by the server.
* Use the <tt>index</tt> parameter to set the level of preference of the new SASL mechanism.
* A value of 0 means that the mechanism is the most prefered one. The SASL mechanism must be
* registered via {@link #registerSASLMechanism(String, Class)
*
* @param index preference position amongst all the implemented SASL mechanism. Starts with 0.
* @param name common name of the SASL mechanism. E.g.: PLAIN, DIGEST-MD5 or KERBEROS_V4.
*/
public static void supportSASLMechanism(String name, int index) {
mechanismsPreferences.add(index, name);
}
/**
* Un-supports an existing SASL mechanism. Once the mechanism has been unregistered it won't
* be possible to authenticate users using the removed SASL mechanism. Note that the mechanism
* is still registered, but will just not be used.
*
* @param name common name of the SASL mechanism. E.g.: PLAIN, DIGEST-MD5 or KERBEROS_V4.
*/
public static void unsupportSASLMechanism(String name) {
mechanismsPreferences.remove(name);
}
/**
* Returns the registerd SASLMechanism classes sorted by the level of preference.
*
@ -146,14 +199,79 @@ public class SASLAuthentication implements UserAuthentication {
* @return true if the server offered SASL authentication besides ANONYMOUS SASL.
*/
public boolean hasNonAnonymousAuthentication() {
if (!serverMechanisms.isEmpty()) {
// Check that anonymous sasl is not the only supported mechanism
if (serverMechanisms.size() == 1) {
return !hasAnonymousAuthentication();
return !serverMechanisms.isEmpty() && (serverMechanisms.size() != 1 || !hasAnonymousAuthentication());
}
return true;
/**
* Performs SASL authentication of the specified user. If SASL authentication was successful
* then resource binding and session establishment will be performed. This method will return
* the full JID provided by the server while binding a resource to the connection.<p>
*
* The server may assign a full JID with a username or resource different than the requested
* by this method.
*
* @param username the username that is authenticating with the server.
* @param resource the desired resource.
* @param cbh the CallbackHandler used to get information from the user
* @return the full JID provided by the server while binding a resource to the connection.
* @throws XMPPException if an error occures while authenticating.
*/
public String authenticate(String username, String resource, CallbackHandler cbh)
throws XMPPException {
// Locate the SASLMechanism to use
Class selected = null;
for (String mechanism : mechanismsPreferences) {
if (implementedMechanisms.containsKey(mechanism) &&
serverMechanisms.contains(mechanism)) {
selected = implementedMechanisms.get(mechanism);
break;
}
return false;
}
if (selected != null) {
// A SASL mechanism was found. Authenticate using the selected mechanism and then
// proceed to bind a resource
try {
Constructor constructor = selected
.getConstructor(new Class[]{SASLAuthentication.class});
currentMechanism = (SASLMechanism) constructor.newInstance(this);
// Trigger SASL authentication with the selected mechanism. We use
// connection.getHost() since GSAPI requires the FQDN of the server, which
// may not match the XMPP domain.
currentMechanism.authenticate(username, connection.getHost(), cbh);
// Wait until SASL negotiation finishes
synchronized (this) {
if (!saslNegotiated && !saslFailed) {
try {
wait(30000);
} catch (InterruptedException e) {
}
}
}
if (saslFailed) {
// SASL authentication failed and the server may have closed the connection
// so throw an exception
throw new XMPPException("SASL authentication failed");
}
if (saslNegotiated) {
// Bind a resource for this connection and
return bindResourceAndEstablishSession(resource);
} else {
// SASL authentication failed
}
}
catch (XMPPException e) {
throw e;
}
catch (Exception e) {
e.printStackTrace();
}
} else {
throw new XMPPException("SASL Authentication failed. No known authentication mechanisims.");
}
throw new XMPPException("SASL authentication failed");
}
/**
@ -187,7 +305,7 @@ public class SASLAuthentication implements UserAuthentication {
try {
Constructor constructor = selected
.getConstructor(new Class[]{SASLAuthentication.class});
currentMechanism = (SASLMechanism) constructor.newInstance(new Object[]{this});
currentMechanism = (SASLMechanism) constructor.newInstance(this);
// Trigger SASL authentication with the selected mechanism. We use
// connection.getHost() since GSAPI requires the FQDN of the server, which
// may not match the XMPP domain.
@ -247,7 +365,7 @@ public class SASLAuthentication implements UserAuthentication {
public String authenticateAnonymously() throws XMPPException {
try {
currentMechanism = new SASLAnonymous(this);
currentMechanism.authenticate(null, null, null);
currentMechanism.authenticate(null,null,"");
// Wait until SASL negotiation finishes
synchronized (this) {

61
source/org/jivesoftware/smack/SmackConfiguration.java
View file

@ -26,6 +26,8 @@ import org.xmlpull.v1.XmlPullParser;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.Vector;
import java.util.Collection;
import java.util.Enumeration;
import java.util.List;
@ -50,6 +52,7 @@ public final class SmackConfiguration {
private static int packetReplyTimeout = 5000;
private static int keepAliveInterval = 30000;
private static Vector<String> defaultMechs = new Vector<String>();
private SmackConfiguration() {
}
@ -89,6 +92,9 @@ public final class SmackConfiguration {
else if (parser.getName().equals("keepAliveInterval")) {
keepAliveInterval = parseIntProperty(parser, keepAliveInterval);
}
else if (parser.getName().equals("mechName")) {
defaultMechs.add(parser.nextText());
}
}
eventType = parser.next();
}
@ -173,6 +179,61 @@ public final class SmackConfiguration {
keepAliveInterval = interval;
}
/**
* Add a SASL mechanism to the list to be used.
*
* @param mech the SASL mechanism to be added
*/
public static void addSaslMech(String mech) {
if(! defaultMechs.contains(mech) ) {
defaultMechs.add(mech);
}
}
/**
* Add a Collection of SASL mechanisms to the list to be used.
*
* @param mechs the Collection of SASL mechanisms to be added
*/
public static void addSaslMechs(Collection<String> mechs) {
for(String mech : mechs) {
addSaslMech(mech);
}
}
/**
* Remove a SASL mechanism from the list to be used.
*
* @param mech the SASL mechanism to be removed
*/
public static void removeSaslMech(String mech) {
if( defaultMechs.contains(mech) ) {
defaultMechs.remove(mech);
}
}
/**
* Remove a Collection of SASL mechanisms to the list to be used.
*
* @param mechs the Collection of SASL mechanisms to be removed
*/
public static void removeSaslMechs(Collection<String> mechs) {
for(String mech : mechs) {
removeSaslMech(mech);
}
}
/**
* Returns the list of SASL mechanisms to be used. If a SASL mechanism is
* listed here it does not guarantee it will be used. The server may not
* support it, or it may not be implemented.
*
* @return the list of SASL mechanisms to be used.
*/
public static List<String> getSaslMechs() {
return defaultMechs;
}
private static void parseClassToLoad(XmlPullParser parser) throws Exception {
String className = parser.nextText();
// Attempt to load the class so that the class can get initialized

24
source/org/jivesoftware/smack/UserAuthentication.java
View file

@ -20,20 +20,44 @@
package org.jivesoftware.smack;
import javax.security.auth.callback.CallbackHandler;
/**
* There are two ways to authenticate a user with a server. Using SASL or Non-SASL
* authentication. This interface makes {@link SASLAuthentication} and
* {@link NonSASLAuthentication} polyphormic.
*
* @author Gaston Dombiak
* @author Jay Kline
*/
interface UserAuthentication {
/**
* Authenticates the user with the server. This method will return the full JID provided by
* the server. The server may assign a full JID with a username and resource different than
* requested by this method.
*
* Note that using callbacks is the prefered method of authenticating users since it allows
* more flexability in the mechanisms used.
*
* @param username the requested username (authorization ID) for authenticating to the server
* @param resource the requested resource.
* @param cbh the CallbackHandler used to obtain authentication ID, password, or other
* information
* @return the full JID provided by the server while binding a resource for the connection.
* @throws XMPPException if an error occurs while authenticating.
*/
String authenticate(String username, String resource, CallbackHandler cbh) throws
XMPPException;
/**
* Authenticates the user with the server. This method will return the full JID provided by
* the server. The server may assign a full JID with a username and resource different than
* the requested by this method.
*
* It is recommended that @{link #authenticate(String, String, CallbackHandler)} be used instead
* since it provides greater flexability in authenticaiton and authorization.
*
* @param username the username that is authenticating with the server.
* @param password the password to send to the server.
* @param resource the desired resource.

163
source/org/jivesoftware/smack/XMPPConnection.java
View file

@ -29,6 +29,9 @@ import org.jivesoftware.smack.util.StringUtils;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import java.security.KeyStore;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.KeyManager;
import java.io.*;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
@ -39,6 +42,7 @@ import java.util.Collection;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
import java.util.concurrent.atomic.AtomicInteger;
import javax.security.auth.callback.CallbackHandler;
/**
* Creates a connection to a XMPP server. A simple use of this API might
@ -275,6 +279,8 @@ public class XMPPConnection {
* (default timeout) elapses in each step of the authentication process without
* a response from the server, or if an error occurs, a XMPPException will be thrown.
*
* It is recommended to use the {@link #login(String, CallbackHandler)} instead.
*
* @param username the username.
* @param password the password.
* @throws XMPPException if an error occurs.
@ -289,6 +295,24 @@ public class XMPPConnection {
* (default timeout) elapses in each step of the authentication process without
* a response from the server, or if an error occurs, a XMPPException will be thrown.
*
* It is recommended to use the {@link #login(String, CallbackHandler)} instead.
*
* @param username the username.
* @param cbh The CallbackHandler used to determine password, or other information.
* @throws XMPPException if an error occurs.
*/
public void login(String username, CallbackHandler cbh) throws XMPPException {
login(username, "Smack", cbh);
}
/**
* Logs in to the server using the strongest authentication mode supported by
* the server, then sets presence to available. If more than five seconds
* (default timeout) elapses in each step of the authentication process without
* a response from the server, or if an error occurs, a XMPPException will be thrown.
*
* It is recommended to use the {@link #login(String, String, CallbackHandler)} instead.
*
* @param username the username.
* @param password the password.
* @param resource the resource.
@ -301,6 +325,24 @@ public class XMPPConnection {
login(username, password, resource, true);
}
/**
* Logs in to the server using the strongest authentication mode supported by
* the server, then sets presence to available. If more than five seconds
* (default timeout) elapses in each step of the authentication process without
* a response from the server, or if an error occurs, a XMPPException will be thrown.
*
* @param username the username.
* @param cbh the password.
* @param resource the resource.
* @throws XMPPException if an error occurs.
* @throws IllegalStateException if not connected to the server, or already logged in
* to the serrver.
*/
public synchronized void login(String username, String resource, CallbackHandler cbh)
throws XMPPException {
login(username, resource, true, cbh);
}
/**
* Logs in to the server using the strongest authentication mode supported by
* the server. If the server supports SASL authentication then the user will be
@ -314,6 +356,8 @@ public class XMPPConnection {
* For compatibility and easiness of use the connection will automatically connect to the
* server if not already connected.
*
* It is recommended to use the {@link #login(String, String, boolean, CallbackHandler)} instead.
*
* @param username the username.
* @param password the password.
* @param resource the resource.
@ -389,6 +433,100 @@ public class XMPPConnection {
debugger.userHasLogged(user);
}
}
/**
* Logs in to the server using the strongest authentication mode supported by
* the server. If the server supports SASL authentication then the user will be
* authenticated using SASL if not Non-SASL authentication will be tried. An available
* presence may optionally be sent. If <tt>sendPresence</tt>
* is false, a presence packet must be sent manually later. If more than five seconds
* (default timeout) elapses in each step of the authentication process without a
* response from the server, or if an error occurs, a XMPPException will be thrown.<p>
* <p/>
* Before logging in (i.e. authenticate) to the server the connection must be connected.
* For compatibility and easiness of use the connection will automatically connect to the
* server if not already connected.
*
* This version requires the use of a CallbackHandler to obtain information, such as the
* password or principal information
*
* @param username the username.
* @param cbh the callback handler.
* @param resource the resource.
* @param sendPresence if <tt>true</tt> an available presence will be sent automatically
* after login is completed.
* @throws XMPPException if an error occurs.
* @throws IllegalStateException if not connected to the server, or already logged in
* to the serrver.
*/
public synchronized void login(String username, String resource,
boolean sendPresence, CallbackHandler cbh) throws XMPPException {
if (!isConnected()) {
throw new IllegalStateException("Not connected to server.");
}
if (authenticated) {
throw new IllegalStateException("Already logged in to server.");
}
// Do partial version of nameprep on the username.
username = username.toLowerCase().trim();
String response;
if (configuration.isSASLAuthenticationEnabled() &&
saslAuthentication.hasNonAnonymousAuthentication()) {
// Authenticate using SASL
response = saslAuthentication.authenticate(username, resource, cbh);
}
else {
throw new XMPPException("SASL authentication unavilable");
}
// Set the user.
if (response != null) {
this.user = response;
// Update the serviceName with the one returned by the server
this.serviceName = StringUtils.parseServer(response);
}
else {
this.user = username + "@" + this.serviceName;
if (resource != null) {
this.user += "/" + resource;
}
}
// If compression is enabled then request the server to use stream compression
if (configuration.isCompressionEnabled()) {
useCompression();
}
// Create the roster if it is not a reconnection.
if (this.roster == null) {
this.roster = new Roster(this);
}
roster.reload();
// Set presence to online.
if (sendPresence) {
packetWriter.sendPacket(new Presence(Presence.Type.available));
}
// Indicate that we're now authenticated.
authenticated = true;
anonymous = false;
//TODO: Handle this!
// Stores the autentication for future reconnection
//this.getConfiguration().setLoginInfo(username, password, resource, sendPresence);
// If debugging is enabled, change the the debug window title to include the
// name we are now logged-in as.
// If DEBUG_ENABLED was set to true AFTER the connection was created the debugger
// will be null
if (configuration.isDebuggerEnabled() && debugger != null) {
debugger.userHasLogged(user);
}
}
/**
* Logs in to the server anonymously. Very few servers are configured to support anonymous
@ -1111,8 +1249,21 @@ public class XMPPConnection {
*/
void proceedTLSReceived() throws Exception {
SSLContext context = SSLContext.getInstance("TLS");
KeyStore ks = KeyStore.getInstance(configuration.getKeystoreType());
KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
KeyManager[] kms = null;
try {
ks.load(new FileInputStream(configuration.getKeystorePath()), configuration.getKeystorePassword().toCharArray());
kmf.init(ks,configuration.getKeystorePassword().toCharArray());
kms = kmf.getKeyManagers();
} catch (FileNotFoundException fourohfour) {
kms = null;
} catch (NullPointerException npe) {
kms = null;
}
// Verify certificate presented by the server
context.init(null, // KeyManager not required
context.init(kms,
new javax.net.ssl.TrustManager[]{new ServerTrustManager(serviceName, configuration)},
new java.security.SecureRandom());
Socket plain = socket;
@ -1125,7 +1276,15 @@ public class XMPPConnection {
initReaderAndWriter();
// Proceed to do the handshake
((SSLSocket) socket).startHandshake();
if (((SSLSocket) socket).getWantClientAuth()) {
System.err.println("Connection wants client auth");
}
else if (((SSLSocket) socket).getNeedClientAuth()) {
System.err.println("Connection needs client auth");
}
else {
System.err.println("Connection does not requrie client auth");
}
// Set that TLS was successful
usingTLS = true;

44
source/org/jivesoftware/smack/sasl/SASLAnonymous.java
View file

@ -3,7 +3,6 @@
* $Revision: $
* $Date: $
*
* Copyright 2003-2005 Jive Software.
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -22,12 +21,13 @@ package org.jivesoftware.smack.sasl;
import org.jivesoftware.smack.SASLAuthentication;
import java.io.IOException;
import javax.security.auth.callback.CallbackHandler;
/**
* Implementation of the SASL ANONYMOUS mechanisn as defined by the
* <a href="http://www.ietf.org/internet-drafts/draft-ietf-sasl-anon-05.txt">IETF draft
* document</a>.
* Implementation of the SASL ANONYMOUS mechanism
*
* @author Gaston Dombiak
* @author Jay Kline
*/
public class SASLAnonymous extends SASLMechanism {
@ -39,14 +39,34 @@ public class SASLAnonymous extends SASLMechanism {
return "ANONYMOUS";
}
protected String getAuthenticationText(String username, String host, String password) {
// Nothing to send in the <auth> body
return null;
public void authenticate(String username, String host, CallbackHandler cbh) throws IOException {
authenticate();
}
protected String getChallengeResponse(byte[] bytes) {
// Some servers may send a challenge to gather more information such as
// email address. Return any string value.
return "anything";
public void authenticate(String username, String host, String password) throws IOException {
authenticate();
}
protected void authenticate() throws IOException {
StringBuffer stanza = new StringBuffer();
stanza.append("<auth mechanism=\"").append(getName());
stanza.append("\" xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\">");
stanza.append("</auth>");
// Send the authentication to the server
getSASLAuthentication().send(stanza.toString());
}
public void challengeReceived(String challenge) throws IOException {
// Build the challenge response stanza encoding the response text
StringBuffer stanza = new StringBuffer();
stanza.append("<response xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\">");
stanza.append("=");
stanza.append("</response>");
// Send the authentication to the server
getSASLAuthentication().send(stanza.toString());
}
}

38
source/org/jivesoftware/smack/sasl/SASLCramMD5Mechanism.java Normal file
View file

@ -0,0 +1,38 @@
/**
* $RCSfile$
* $Revision: $
* $Date: $
*
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smack.sasl;
import org.jivesoftware.smack.SASLAuthentication;
/**
* Implementation of the SASL CRAM-MD5 mechanism
*
* @author Jay Kline
*/
public class SASLCramMD5Mechanism extends SASLMechanism {
public SASLCramMD5Mechanism(SASLAuthentication saslAuthentication) {
super(saslAuthentication);
}
protected String getName() {
return "CRAM-MD5";
}
}

38
source/org/jivesoftware/smack/sasl/SASLDigestMD5Mechanism.java Normal file
View file

@ -0,0 +1,38 @@
/**
* $RCSfile$
* $Revision: $
* $Date: $
*
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smack.sasl;
import org.jivesoftware.smack.SASLAuthentication;
/**
* Implementation of the SASL DIGEST-MD5 mechanism
*
* @author Jay Kline
*/
public class SASLDigestMD5Mechanism extends SASLMechanism {
public SASLDigestMD5Mechanism(SASLAuthentication saslAuthentication) {
super(saslAuthentication);
}
protected String getName() {
return "CRAM-MD5";
}
}

59
source/org/jivesoftware/smack/sasl/SASLExternalMechanism.java Normal file
View file

@ -0,0 +1,59 @@
/**
* $RCSfile$
* $Revision: $
* $Date: $
*
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smack.sasl;
import org.jivesoftware.smack.SASLAuthentication;
/**
* Implementation of the SASL EXTERNAL mechanism.
*
* To effectively use this mechanism, Java must be configured to properly
* supply a client SSL certificate (of some sort) to the server. It is up
* to the implementer to determine how to do this. Here is one method:
*
* Create a java keystore with your SSL certificate in it:
* keytool -genkey -alias username -dname "cn=username,ou=organizationalUnit,o=organizationaName,l=locality,s=state,c=country"
*
* Next, set the System Properties:
* <ul>
* <li>javax.net.ssl.keyStore to the location of the keyStore
* <li>javax.net.ssl.keyStorePassword to the password of the keyStore
* <li>javax.net.ssl.trustStore to the location of the trustStore
* <li>javax.net.ssl.trustStorePassword to the the password of the trustStore
* </ul>
*
* Then, when the server requests or requires the client certificate, java will
* simply provide the one in the keyStore.
*
* Also worth noting is the EXTERNAL mechanism in Smack is not enabled by default.
* To enable it, the implementer will need to call SASLAuthentication.supportSASLMechamism("EXTERNAL");
*
* @author Jay Kline
*/
public class SASLExternalMechanism extends SASLMechanism {
public SASLExternalMechanism(SASLAuthentication saslAuthentication) {
super(saslAuthentication);
}
protected String getName() {
return "EXTERNAL";
}
}

97
source/org/jivesoftware/smack/sasl/SASLGSSAPIMechanism.java
View file

@ -19,29 +19,26 @@
package org.jivesoftware.smack.sasl;
import javax.security.sasl.*;
import java.util.*;
import java.io.IOException;
import org.jivesoftware.smack.SASLAuthentication;
import org.jivesoftware.smack.util.Base64;
import org.jivesoftware.smack.XMPPException;
import java.io.IOException;
import java.util.Map;
import java.util.HashMap;
import javax.security.sasl.Sasl;
import javax.security.sasl.SaslClient;
import javax.security.auth.callback.CallbackHandler;
/**
* Implementation of the SASL GSSAPI mechanisn
*
* Implementation of the SASL GSSAPI mechanism
*
* @author Jay Kline
*/
public class SASLGSSAPIMechanism extends SASLMechanism {
private static final String protocol = "xmpp";
private static final String[] mechanisms = {"GSSAPI"};
private SaslClient sc;
public SASLGSSAPIMechanism(SASLAuthentication saslAuthentication) {
super(saslAuthentication);
System.setProperty("java.security.krb5.debug","true");
System.setProperty("javax.security.auth.useSubjectCredsOnly","false");
System.setProperty("java.security.auth.login.config","gss.conf");
@ -59,71 +56,35 @@ public class SASLGSSAPIMechanism extends SASLMechanism {
*
* @param username the username of the user being authenticated.
* @param host the hostname where the user account resides.
* @param password the password of the user (ignored for GSSAPI)
* @param cbh the CallbackHandler (not used with GSSAPI)
* @throws IOException If a network error occures while authenticating.
*/
public void authenticate(String username, String host, String password) throws IOException {
// Build the authentication stanza encoding the authentication text
StringBuffer stanza = new StringBuffer();
public void authenticate(String username, String host, CallbackHandler cbh) throws IOException, XMPPException {
String[] mechanisms = { getName() };
Map props = new HashMap();
sc = Sasl.createSaslClient(mechanisms, username, protocol, host, props, null);
stanza.append("<auth mechanism=\"").append(getName());
stanza.append("\" xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\">");
if(sc.hasInitialResponse()) {
byte[] response = sc.evaluateChallenge(new byte[0]);
String authenticationText = Base64.encodeBytes(response,Base64.DONT_BREAK_LINES);
if(authenticationText != null && !authenticationText.equals("")) {
stanza.append(authenticationText);
}
}
stanza.append("</auth>");
// Send the authentication to the server
getSASLAuthentication().send(stanza.toString());
}
protected String getAuthenticationText(String username, String host, String password) {
// Unused, see authenticate
return null;
props.put(Sasl.SERVER_AUTH,"TRUE");
sc = Sasl.createSaslClient(mechanisms, username, "xmpp", host, props, cbh);
authenticate();
}
/**
* The server is challenging the SASL mechanism for the stanza he just sent. Send a
* response to the server's challenge. This overrieds from the abstract class because the
* tokens needed for GSSAPI are binary, and not safe to put in a string, thus
* getChallengeResponse() cannot be used.
* Builds and sends the <tt>auth</tt> stanza to the server.
* This overrides from the abstract class because the initial token
* needed for GSSAPI is binary, and not safe to put in a string, thus
* getAuthenticationText() cannot be used.
*
* @param challenge a base64 encoded string representing the challenge.
* @param username the username of the user being authenticated.
* @param host the hostname where the user account resides.
* @param password the password of the user (ignored for GSSAPI)
* @throws IOException If a network error occures while authenticating.
*/
public void challengeReceived(String challenge) throws IOException {
// Build the challenge response stanza encoding the response text
StringBuffer stanza = new StringBuffer();
byte response[];
if(challenge != null) {
response = sc.evaluateChallenge(Base64.decode(challenge));
} else {
response = sc.evaluateChallenge(null);
public void authenticate(String username, String host, String password) throws IOException, XMPPException {
String[] mechanisms = { getName() };
Map props = new HashMap();
props.put(Sasl.SERVER_AUTH,"TRUE");
sc = Sasl.createSaslClient(mechanisms, username, "xmpp", host, props, this);
authenticate();
}
String authenticationText = Base64.encodeBytes(response,Base64.DONT_BREAK_LINES);
if(authenticationText.equals("")) {
authenticationText = "=";
}
stanza.append("<response xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\">");
stanza.append(authenticationText);
stanza.append("</response>");
// Send the authentication to the server
getSASLAuthentication().send(stanza.toString());
}
protected String getChallengeResponse(byte[] bytes) {
// Unused, see challengeReceived
return null;
}
}

160
source/org/jivesoftware/smack/sasl/SASLMechanism.java
View file

@ -20,47 +20,107 @@
package org.jivesoftware.smack.sasl;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.SASLAuthentication;
import org.jivesoftware.smack.util.StringUtils;
import org.jivesoftware.smack.util.Base64;
import java.io.IOException;
import java.util.Map;
import java.util.HashMap;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.UnsupportedCallbackException;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.NameCallback;
import javax.security.auth.callback.PasswordCallback;
import javax.security.sasl.RealmCallback;
import javax.security.sasl.RealmChoiceCallback;
import javax.security.sasl.Sasl;
import javax.security.sasl.SaslClient;
import javax.security.sasl.SaslException;
/**
* Base class for SASL mechanisms. Subclasses must implement three methods:
* Base class for SASL mechanisms. Subclasses must implement these methods:
* <ul>
* <li>{@link #getName()} -- returns the common name of the SASL mechanism.</li>
* <li>{@link #getAuthenticationText(String, String, String)} -- authentication text to include
* in the initial <tt>auth</tt> stanza.</li>
* <li>{@link #getChallengeResponse(byte[])} -- to respond challenges made by the server.</li>
* </ul>
* Subclasses will likely want to implement their own versions of these mthods:
* <li>{@link #authenticate(String, String, String)} -- Initiate authentication stanza using the
* deprecated method.</li>
* <li>{@link #authenticate(String, String, CallbackHandler)} -- Initiate authentication stanza
* using the CallbackHandler method.</li>
* <li>{@link #challengeReceived(String)} -- Handle a challenge from the server.</li>
* </ul>
*
* @author Gaston Dombiak
* @author Jay Kline
*/
public abstract class SASLMechanism {
public abstract class SASLMechanism implements CallbackHandler {
private SASLAuthentication saslAuthentication;
protected SaslClient sc;
protected String authenticationId;
protected String password;
public SASLMechanism(SASLAuthentication saslAuthentication) {
super();
this.saslAuthentication = saslAuthentication;
}
/**
* Builds and sends the <tt>auth</tt> stanza to the server.
* Builds and sends the <tt>auth</tt> stanza to the server. Note that this method of
* authentication is not recommended, since it is very inflexable. Use
* {@link #authenticate(String, String, CallbackHandler)} whenever possible.
*
* @param username the username of the user being authenticated.
* @param host the hostname where the user account resides.
* @param password the password of the user.
* @throws IOException If a network error occures while authenticating.
* @param password the password for this account.
* @throws IOException If a network error occurs while authenticating.
* @throws XMPPException If a protocol error occurs or the user is not authenticated.
*/
public void authenticate(String username, String host, String password) throws IOException {
// Build the authentication stanza encoding the authentication text
StringBuilder stanza = new StringBuilder();
public void authenticate(String username, String host, String password) throws IOException, XMPPException {
//Since we were not provided with a CallbackHandler, we will use our own with the given
//information
//Set the authenticationID as the username, since they must be the same in this case.
this.authenticationId = username;
this.password = password;
String[] mechanisms = { getName() };
Map<String,String> props = new HashMap<String,String>();
sc = Sasl.createSaslClient(mechanisms, username, "xmpp", host, props, this);
authenticate();
}
/**
* Builds and sends the <tt>auth</tt> stanza to the server. The callback handler will handle
* any additional information, such as the authentication ID or realm, if it is needed.
*
* @param username the username of the user being authenticated.
* @param host the hostname where the user account resides.
* @param cbh the CallbackHandler to obtain user information.
* @throws IOException If a network error occures while authenticating.
* @throws XMPPException If a protocol error occurs or the user is not authenticated.
*/
public void authenticate(String username, String host, CallbackHandler cbh) throws IOException, XMPPException {
String[] mechanisms = { getName() };
Map<String,String> props = new HashMap<String,String>();
sc = Sasl.createSaslClient(mechanisms, username, "xmpp", host, props, cbh);
authenticate();
}
protected void authenticate() throws IOException, XMPPException {
StringBuffer stanza = new StringBuffer();
stanza.append("<auth mechanism=\"").append(getName());
stanza.append("\" xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\">");
String authenticationText = getAuthenticationText(username, host, password);
if (authenticationText != null) {
stanza.append(StringUtils.encodeBase64(authenticationText));
try {
if(sc.hasInitialResponse()) {
byte[] response = sc.evaluateChallenge(new byte[0]);
String authenticationText = Base64.encodeBytes(response,Base64.DONT_BREAK_LINES);
if(authenticationText != null && !authenticationText.equals("")) {
stanza.append(authenticationText);
}
}
} catch (SaslException e) {
throw new XMPPException("SASL authentication failed", e);
}
stanza.append("</auth>");
@ -68,6 +128,7 @@ public abstract class SASLMechanism {
getSASLAuthentication().send(stanza.toString());
}
/**
* The server is challenging the SASL mechanism for the stanza he just sent. Send a
* response to the server's challenge.
@ -77,12 +138,22 @@ public abstract class SASLMechanism {
*/
public void challengeReceived(String challenge) throws IOException {
// Build the challenge response stanza encoding the response text
StringBuilder stanza = new StringBuilder();
stanza.append("<response xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\">");
String authenticationText = getChallengeResponse(StringUtils.decodeBase64(challenge));
if (authenticationText != null) {
stanza.append(StringUtils.encodeBase64(authenticationText));
StringBuffer stanza = new StringBuffer();
byte response[];
if(challenge != null) {
response = sc.evaluateChallenge(Base64.decode(challenge));
} else {
response = sc.evaluateChallenge(null);
}
String authenticationText = Base64.encodeBytes(response,Base64.DONT_BREAK_LINES);
if(authenticationText.equals("")) {
authenticationText = "=";
}
stanza.append("<response xmlns=\"urn:ietf:params:xml:ns:xmpp-sasl\">");
stanza.append(authenticationText);
stanza.append("</response>");
// Send the authentication to the server
@ -90,34 +161,37 @@ public abstract class SASLMechanism {
}
/**
* Returns the response text to send answering the challenge sent by the server. Mechanisms
* that will never receive a challenge may redefine this method returning <tt>null</tt>.
*
* @param bytes the challenge sent by the server.
* @return the response text to send to answer the challenge sent by the server.
*/
protected abstract String getChallengeResponse(byte[] bytes);
/**
* Returns the common name of the SASL mechanism. E.g.: PLAIN, DIGEST-MD5 or KERBEROS_V4.
* Returns the common name of the SASL mechanism. E.g.: PLAIN, DIGEST-MD5 or GSSAPI.
*
* @return the common name of the SASL mechanism.
*/
protected abstract String getName();
/**
* Returns the authentication text to include in the initial <tt>auth</tt> stanza
* or <tt>null</tt> if nothing should be added.
*
* @param username the username of the user being authenticated.
* @param host the hostname where the user account resides.
* @param password the password of the user.
* @return the authentication text to include in the initial <tt>auth</tt> stanza
* or <tt>null</tt> if nothing should be added.
*/
protected abstract String getAuthenticationText(String username, String host, String password);
protected SASLAuthentication getSASLAuthentication() {
return saslAuthentication;
}
/**
*
*/
public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
for (int i = 0; i < callbacks.length; i++) {
if (callbacks[i] instanceof NameCallback) {
NameCallback ncb = (NameCallback)callbacks[i];
ncb.setName(authenticationId);
} else if(callbacks[i] instanceof PasswordCallback) {
PasswordCallback pcb = (PasswordCallback)callbacks[i];
pcb.setPassword(password.toCharArray());
} else if(callbacks[i] instanceof RealmCallback) {
//unused
//RealmCallback rcb = (RealmCallback)callbacks[i];
} else if(callbacks[i] instanceof RealmChoiceCallback){
//unused
//RealmChoiceCallback rccb = (RealmChoiceCallback)callbacks[i];
} else {
throw new UnsupportedCallbackException(callbacks[i]);
}
}
}
}

26
source/org/jivesoftware/smack/sasl/SASLPlainMechanism.java
View file

@ -1,5 +1,4 @@
/**
* Copyright 2003-2007 Jive Software.
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -19,11 +18,9 @@ package org.jivesoftware.smack.sasl;
import org.jivesoftware.smack.SASLAuthentication;
/**
* Implementation of the SASL PLAIN mechanisn as defined by the
* <a href="http://www.ietf.org/internet-drafts/draft-ietf-sasl-plain-08.txt">IETF draft
* document</a>.
* Implementation of the SASL PLAIN mechanism
*
* @author Gaston Dombiak
* @author Jay Kline
*/
public class SASLPlainMechanism extends SASLMechanism {
@ -34,23 +31,4 @@ public class SASLPlainMechanism extends SASLMechanism {
protected String getName() {
return "PLAIN";
}
protected String getAuthenticationText(String username, String host, String password) {
// Build the text containing the "authorization identity" + NUL char +
// "authentication identity" + NUL char + "clear-text password"
StringBuilder text = new StringBuilder();
// Commented out line below due to SMACK-224. This part of PLAIN auth seems to be
// optional, and just removing it should increase compatability.
// text.append(username).append("@").append(host);
text.append('\0');
text.append(username);
text.append('\0');
text.append(password);
return text.toString();
}
protected String getChallengeResponse(byte[] bytes) {
// Return null since this mechanism will never get a challenge from the server
return null;
}
}

6
test/org/jivesoftware/smack/LoginTest.java
View file

@ -1,7 +1,7 @@
/**
* $RCSfile$
* $Revision: $
* $Date: $
* $Revision$
* $Date$
*
* Copyright 2003-2007 Jive Software.
*
@ -154,7 +154,7 @@ public class LoginTest extends SmackTestCase {
throw e;
}
}
conn.login("user_1", "user_1", null);
conn.login("user_1", "user_1", (String) null);
if (conn.getSASLAuthentication().isAuthenticated()) {
// Check that the server assigned a resource
assertNotNull("JID assigned by server is missing", conn.getUser());