Examples with GSSName org.ietf.jgss.GSSName used on opensource projects

Example 21 with GSSName

use of org.ietf.jgss.GSSName in project zookeeper by apache.

the class ZooKeeperSaslServer method createSaslServer.

private SaslServer createSaslServer(final Login login) {
    synchronized (login) {
        Subject subject = login.getSubject();
        if (subject != null) {
            // server is using a JAAS-authenticated subject: determine service principal name and hostname from zk server's subject.
            if (subject.getPrincipals().size() > 0) {
                try {
                    final Object[] principals = subject.getPrincipals().toArray();
                    final Principal servicePrincipal = (Principal) principals[0];
                    // e.g. servicePrincipalNameAndHostname := "zookeeper/myhost.foo.com@FOO.COM"
                    final String servicePrincipalNameAndHostname = servicePrincipal.getName();
                    int indexOf = servicePrincipalNameAndHostname.indexOf("/");
                    // e.g. serviceHostnameAndKerbDomain := "myhost.foo.com@FOO.COM"
                    final String serviceHostnameAndKerbDomain = servicePrincipalNameAndHostname.substring(indexOf + 1, servicePrincipalNameAndHostname.length());
                    int indexOfAt = serviceHostnameAndKerbDomain.indexOf("@");
                    // Handle Kerberos Service as well as User Principal Names
                    final String servicePrincipalName, serviceHostname;
                    if (indexOf > 0) {
                        // e.g. servicePrincipalName := "zookeeper"
                        servicePrincipalName = servicePrincipalNameAndHostname.substring(0, indexOf);
                        // e.g. serviceHostname := "myhost.foo.com"
                        serviceHostname = serviceHostnameAndKerbDomain.substring(0, indexOfAt);
                    } else {
                        servicePrincipalName = servicePrincipalNameAndHostname.substring(0, indexOfAt);
                        serviceHostname = null;
                    }
                    // TODO: should depend on zoo.cfg specified mechs, but if subject is non-null, it can be assumed to be GSSAPI.
                    final String mech = "GSSAPI";
                    LOG.debug("serviceHostname is '" + serviceHostname + "'");
                    LOG.debug("servicePrincipalName is '" + servicePrincipalName + "'");
                    LOG.debug("SASL mechanism(mech) is '" + mech + "'");
                    boolean usingNativeJgss = Boolean.getBoolean("sun.security.jgss.native");
                    if (usingNativeJgss) {
                        // """
                        try {
                            GSSManager manager = GSSManager.getInstance();
                            Oid krb5Mechanism = new Oid("1.2.840.113554.1.2.2");
                            GSSName gssName = manager.createName(servicePrincipalName + "@" + serviceHostname, GSSName.NT_HOSTBASED_SERVICE);
                            GSSCredential cred = manager.createCredential(gssName, GSSContext.DEFAULT_LIFETIME, krb5Mechanism, GSSCredential.ACCEPT_ONLY);
                            subject.getPrivateCredentials().add(cred);
                            if (LOG.isDebugEnabled()) {
                                LOG.debug("Added private credential to subject: " + cred);
                            }
                        } catch (GSSException ex) {
                            LOG.warn("Cannot add private credential to subject; " + "clients authentication may fail", ex);
                        }
                    }
                    try {
                        return Subject.doAs(subject, new PrivilegedExceptionAction<SaslServer>() {

                            public SaslServer run() {
                                try {
                                    SaslServer saslServer;
                                    saslServer = Sasl.createSaslServer(mech, servicePrincipalName, serviceHostname, null, login.callbackHandler);
                                    return saslServer;
                                } catch (SaslException e) {
                                    LOG.error("Zookeeper Server failed to create a SaslServer to interact with a client during session initiation: " + e);
                                    e.printStackTrace();
                                    return null;
                                }
                            }
                        });
                    } catch (PrivilegedActionException e) {
                        // TODO: exit server at this point(?)
                        LOG.error("Zookeeper Quorum member experienced a PrivilegedActionException exception while creating a SaslServer using a JAAS principal context:" + e);
                        e.printStackTrace();
                    }
                } catch (IndexOutOfBoundsException e) {
                    LOG.error("server principal name/hostname determination error: ", e);
                }
            } else {
                // TODO: use 'authMech=' value in zoo.cfg.
                try {
                    SaslServer saslServer = Sasl.createSaslServer("DIGEST-MD5", "zookeeper", "zk-sasl-md5", null, login.callbackHandler);
                    return saslServer;
                } catch (SaslException e) {
                    LOG.error("Zookeeper Quorum member failed to create a SaslServer to interact with a client during session initiation", e);
                }
            }
        }
    }
    LOG.error("failed to create saslServer object.");
    return null;
}

Example 22 with GSSName

use of org.ietf.jgss.GSSName in project blade by biezhi.

the class SpnegoLoginService method login.

/**
     * username will be null since the credentials will contain all the relevant info
     */
@Override
public UserIdentity login(String username, Object credentials, ServletRequest request) {
    String encodedAuthToken = (String) credentials;
    byte[] authToken = B64Code.decode(encodedAuthToken);
    GSSManager manager = GSSManager.getInstance();
    try {
        // http://java.sun.com/javase/6/docs/technotes/guides/security/jgss/jgss-features.html
        Oid krb5Oid = new Oid("1.3.6.1.5.5.2");
        GSSName gssName = manager.createName(_targetName, null);
        GSSCredential serverCreds = manager.createCredential(gssName, GSSCredential.INDEFINITE_LIFETIME, krb5Oid, GSSCredential.ACCEPT_ONLY);
        GSSContext gContext = manager.createContext(serverCreds);
        if (gContext == null) {
            LOG.debug("SpnegoUserRealm: failed to establish GSSContext");
        } else {
            while (!gContext.isEstablished()) {
                authToken = gContext.acceptSecContext(authToken, 0, authToken.length);
            }
            if (gContext.isEstablished()) {
                String clientName = gContext.getSrcName().toString();
                String role = clientName.substring(clientName.indexOf('@') + 1);
                LOG.debug("SpnegoUserRealm: established a security context");
                LOG.debug("Client Principal is: " + gContext.getSrcName());
                LOG.debug("Server Principal is: " + gContext.getTargName());
                LOG.debug("Client Default Role: " + role);
                SpnegoUserPrincipal user = new SpnegoUserPrincipal(clientName, authToken);
                Subject subject = new Subject();
                subject.getPrincipals().add(user);
                return _identityService.newUserIdentity(subject, user, new String[] { role });
            }
        }
    } catch (GSSException gsse) {
        LOG.warn(gsse);
    }
    return null;
}

Example 23 with GSSName

use of org.ietf.jgss.GSSName in project hadoop by apache.

the class KerberosAuthenticator method doSpnegoSequence.

/**
   * Implements the SPNEGO authentication sequence interaction using the current default principal
   * in the Kerberos cache (normally set via kinit).
   *
   * @param token the authentication token being used for the user.
   *
   * @throws IOException if an IO error occurred.
   * @throws AuthenticationException if an authentication error occurred.
   */
private void doSpnegoSequence(AuthenticatedURL.Token token) throws IOException, AuthenticationException {
    try {
        AccessControlContext context = AccessController.getContext();
        Subject subject = Subject.getSubject(context);
        if (subject == null || (!KerberosUtil.hasKerberosKeyTab(subject) && !KerberosUtil.hasKerberosTicket(subject))) {
            LOG.debug("No subject in context, logging in");
            subject = new Subject();
            LoginContext login = new LoginContext("", subject, null, new KerberosConfiguration());
            login.login();
        }
        if (LOG.isDebugEnabled()) {
            LOG.debug("Using subject: " + subject);
        }
        Subject.doAs(subject, new PrivilegedExceptionAction<Void>() {

            @Override
            public Void run() throws Exception {
                GSSContext gssContext = null;
                try {
                    GSSManager gssManager = GSSManager.getInstance();
                    String servicePrincipal = KerberosUtil.getServicePrincipal("HTTP", KerberosAuthenticator.this.url.getHost());
                    Oid oid = KerberosUtil.getOidInstance("NT_GSS_KRB5_PRINCIPAL");
                    GSSName serviceName = gssManager.createName(servicePrincipal, oid);
                    oid = KerberosUtil.getOidInstance("GSS_KRB5_MECH_OID");
                    gssContext = gssManager.createContext(serviceName, oid, null, GSSContext.DEFAULT_LIFETIME);
                    gssContext.requestCredDeleg(true);
                    gssContext.requestMutualAuth(true);
                    byte[] inToken = new byte[0];
                    byte[] outToken;
                    boolean established = false;
                    // Loop while the context is still not established
                    while (!established) {
                        outToken = gssContext.initSecContext(inToken, 0, inToken.length);
                        if (outToken != null) {
                            sendToken(outToken);
                        }
                        if (!gssContext.isEstablished()) {
                            inToken = readToken();
                        } else {
                            established = true;
                        }
                    }
                } finally {
                    if (gssContext != null) {
                        gssContext.dispose();
                        gssContext = null;
                    }
                }
                return null;
            }
        });
    } catch (PrivilegedActionException ex) {
        if (ex.getException() instanceof IOException) {
            throw (IOException) ex.getException();
        } else {
            throw new AuthenticationException(ex.getException());
        }
    } catch (LoginException ex) {
        throw new AuthenticationException(ex);
    }
    AuthenticatedURL.extractToken(conn, token);
}

Example 24 with GSSName

use of org.ietf.jgss.GSSName in project ats-framework by Axway.

the class GGSSchemeBase method generateGSSToken.

protected byte[] generateGSSToken(final byte[] input, final Oid oid) throws GSSException {
    byte[] token = input;
    if (token == null) {
        token = new byte[0];
    }
    GSSManager manager = getManager();
    GSSName serverName = manager.createName(servicePrincipalName, servicePrincipalOid);
    GSSContext gssContext = manager.createContext(serverName.canonicalize(oid), oid, null, GSSContext.DEFAULT_LIFETIME);
    gssContext.requestMutualAuth(true);
    gssContext.requestCredDeleg(true);
    // Get client to login if not already done
    return gssClient.negotiate(gssContext, token);
}

Example 25 with GSSName

use of org.ietf.jgss.GSSName in project async-http-client by AsyncHttpClient.

the class SpnegoEngine method generateToken.

public String generateToken(String server) throws SpnegoEngineException {
    GSSContext gssContext = null;
    // base64 decoded challenge
    byte[] token = null;
    Oid negotiationOid;
    try {
        log.debug("init {}", server);
        /*
             * Using the SPNEGO OID is the correct method. Kerberos v5 works for IIS but not JBoss. Unwrapping the initial token when using SPNEGO OID looks like what is described
             * here...
             * 
             * http://msdn.microsoft.com/en-us/library/ms995330.aspx
             * 
             * Another helpful URL...
             * 
             * http://publib.boulder.ibm.com/infocenter/wasinfo/v7r0/index.jsp?topic=/com.ibm.websphere.express.doc/info/exp/ae/tsec_SPNEGO_token.html
             * 
             * Unfortunately SPNEGO is JRE >=1.6.
             */
        /** Try SPNEGO by default, fall back to Kerberos later if error */
        negotiationOid = new Oid(SPNEGO_OID);
        boolean tryKerberos = false;
        try {
            GSSManager manager = GSSManager.getInstance();
            GSSName serverName = manager.createName("HTTP@" + server, GSSName.NT_HOSTBASED_SERVICE);
            gssContext = manager.createContext(serverName.canonicalize(negotiationOid), negotiationOid, null, GSSContext.DEFAULT_LIFETIME);
            gssContext.requestMutualAuth(true);
            gssContext.requestCredDeleg(true);
        } catch (GSSException ex) {
            log.error("generateToken", ex);
            // Rethrow any other exception.
            if (ex.getMajor() == GSSException.BAD_MECH) {
                log.debug("GSSException BAD_MECH, retry with Kerberos MECH");
                tryKerberos = true;
            } else {
                throw ex;
            }
        }
        if (tryKerberos) {
            /* Kerberos v5 GSS-API mechanism defined in RFC 1964. */
            log.debug("Using Kerberos MECH {}", KERBEROS_OID);
            negotiationOid = new Oid(KERBEROS_OID);
            GSSManager manager = GSSManager.getInstance();
            GSSName serverName = manager.createName("HTTP@" + server, GSSName.NT_HOSTBASED_SERVICE);
            gssContext = manager.createContext(serverName.canonicalize(negotiationOid), negotiationOid, null, GSSContext.DEFAULT_LIFETIME);
            gssContext.requestMutualAuth(true);
            gssContext.requestCredDeleg(true);
        }
        // TODO suspicious: this will always be null because no value has been assigned before. Assign directly?
        if (token == null) {
            token = new byte[0];
        }
        token = gssContext.initSecContext(token, 0, token.length);
        if (token == null) {
            throw new SpnegoEngineException("GSS security context initialization failed");
        }
        /*
             * IIS accepts Kerberos and SPNEGO tokens. Some other servers Jboss, Glassfish? seem to only accept SPNEGO. Below wraps Kerberos into SPNEGO token.
             */
        if (spnegoGenerator != null && negotiationOid.toString().equals(KERBEROS_OID)) {
            token = spnegoGenerator.generateSpnegoDERObject(token);
        }
        gssContext.dispose();
        String tokenstr = Base64.encode(token);
        log.debug("Sending response '{}' back to the server", tokenstr);
        return tokenstr;
    } catch (GSSException gsse) {
        log.error("generateToken", gsse);
        if (gsse.getMajor() == GSSException.DEFECTIVE_CREDENTIAL || gsse.getMajor() == GSSException.CREDENTIALS_EXPIRED)
            throw new SpnegoEngineException(gsse.getMessage(), gsse);
        if (gsse.getMajor() == GSSException.NO_CRED)
            throw new SpnegoEngineException(gsse.getMessage(), gsse);
        if (gsse.getMajor() == GSSException.DEFECTIVE_TOKEN || gsse.getMajor() == GSSException.DUPLICATE_TOKEN || gsse.getMajor() == GSSException.OLD_TOKEN)
            throw new SpnegoEngineException(gsse.getMessage(), gsse);
        // other error
        throw new SpnegoEngineException(gsse.getMessage());
    } catch (IOException ex) {
        throw new SpnegoEngineException(ex.getMessage());
    }
}