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

Example 21 with GSSException

use of org.ietf.jgss.GSSException in project tomcat by apache.

the class CombinedRealm method authenticate.

/**
     * {@inheritDoc}
     */
@Override
public Principal authenticate(GSSContext gssContext, boolean storeCreds) {
    if (gssContext.isEstablished()) {
        Principal authenticatedUser = null;
        String username = null;
        GSSName name = null;
        try {
            name = gssContext.getSrcName();
        } catch (GSSException e) {
            log.warn(sm.getString("realmBase.gssNameFail"), e);
            return null;
        }
        username = name.toString();
        for (Realm realm : realms) {
            if (log.isDebugEnabled()) {
                log.debug(sm.getString("combinedRealm.authStart", username, realm.getClass().getName()));
            }
            authenticatedUser = realm.authenticate(gssContext, storeCreds);
            if (authenticatedUser == null) {
                if (log.isDebugEnabled()) {
                    log.debug(sm.getString("combinedRealm.authFail", username, realm.getClass().getName()));
                }
            } else {
                if (log.isDebugEnabled()) {
                    log.debug(sm.getString("combinedRealm.authSuccess", username, realm.getClass().getName()));
                }
                break;
            }
        }
        return authenticatedUser;
    }
    // Fail in all other cases
    return null;
}

Example 22 with GSSException

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

the class ZooKeeperSaslClient method createSaslClient.

private SaslClient createSaslClient(final String servicePrincipal, final String loginContext) throws LoginException {
    try {
        if (!initializedLogin) {
            synchronized (this) {
                if (login == null) {
                    if (LOG.isDebugEnabled()) {
                        LOG.debug("JAAS loginContext is: " + loginContext);
                    }
                    // note that the login object is static: it's shared amongst all zookeeper-related connections.
                    // in order to ensure the login is initialized only once, it must be synchronized the code snippet.
                    login = new Login(loginContext, new ClientCallbackHandler(null), clientConfig);
                    login.startThreadIfNeeded();
                    initializedLogin = true;
                }
            }
        }
        Subject subject = login.getSubject();
        SaslClient saslClient;
        // if empty, use DIGEST-MD5; otherwise, use GSSAPI.
        if (subject.getPrincipals().isEmpty()) {
            // no principals: must not be GSSAPI: use DIGEST-MD5 mechanism instead.
            LOG.info("Client will use DIGEST-MD5 as SASL mechanism.");
            String[] mechs = { "DIGEST-MD5" };
            String username = (String) (subject.getPublicCredentials().toArray()[0]);
            String password = (String) (subject.getPrivateCredentials().toArray()[0]);
            // "zk-sasl-md5" is a hard-wired 'domain' parameter shared with zookeeper server code (see ServerCnxnFactory.java)
            saslClient = Sasl.createSaslClient(mechs, username, "zookeeper", "zk-sasl-md5", null, new ClientCallbackHandler(password));
            return saslClient;
        } else {
            // GSSAPI.
            boolean usingNativeJgss = clientConfig.getBoolean(ZKConfig.JGSS_NATIVE);
            if (usingNativeJgss) {
                // """
                try {
                    GSSManager manager = GSSManager.getInstance();
                    Oid krb5Mechanism = new Oid("1.2.840.113554.1.2.2");
                    GSSCredential cred = manager.createCredential(null, GSSContext.DEFAULT_LIFETIME, krb5Mechanism, GSSCredential.INITIATE_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; " + "authentication at the server may fail", ex);
                }
            }
            final Object[] principals = subject.getPrincipals().toArray();
            // determine client principal from subject.
            final Principal clientPrincipal = (Principal) principals[0];
            final KerberosName clientKerberosName = new KerberosName(clientPrincipal.getName());
            // assume that server and client are in the same realm (by default; unless the system property
            // "zookeeper.server.realm" is set).
            String serverRealm = clientConfig.getProperty(ZKClientConfig.ZOOKEEPER_SERVER_REALM, clientKerberosName.getRealm());
            KerberosName serviceKerberosName = new KerberosName(servicePrincipal + "@" + serverRealm);
            final String serviceName = serviceKerberosName.getServiceName();
            final String serviceHostname = serviceKerberosName.getHostName();
            final String clientPrincipalName = clientKerberosName.toString();
            try {
                saslClient = Subject.doAs(subject, new PrivilegedExceptionAction<SaslClient>() {

                    public SaslClient run() throws SaslException {
                        LOG.info("Client will use GSSAPI as SASL mechanism.");
                        String[] mechs = { "GSSAPI" };
                        LOG.debug("creating sasl client: client=" + clientPrincipalName + ";service=" + serviceName + ";serviceHostname=" + serviceHostname);
                        SaslClient saslClient = Sasl.createSaslClient(mechs, clientPrincipalName, serviceName, serviceHostname, null, new ClientCallbackHandler(null));
                        return saslClient;
                    }
                });
                return saslClient;
            } catch (Exception e) {
                LOG.error("Exception while trying to create SASL client", e);
                e.printStackTrace();
                return null;
            }
        }
    } catch (LoginException e) {
        // We throw LoginExceptions...
        throw e;
    } catch (Exception e) {
        // ..but consume (with a log message) all other types of exceptions.
        LOG.error("Exception while trying to create SASL client: " + e);
        return null;
    }
}

Example 23 with GSSException

use of org.ietf.jgss.GSSException 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 24 with GSSException

use of org.ietf.jgss.GSSException 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 25 with GSSException

use of org.ietf.jgss.GSSException in project mongo-java-driver by mongodb.

the class GSSAPIAuthenticator method createSaslClient.

@Override
protected SaslClient createSaslClient(final ServerAddress serverAddress) {
    MongoCredential credential = getCredential();
    try {
        Map<String, Object> saslClientProperties = getCredential().getMechanismProperty(JAVA_SASL_CLIENT_PROPERTIES_KEY, null);
        if (saslClientProperties == null) {
            saslClientProperties = new HashMap<String, Object>();
            saslClientProperties.put(Sasl.MAX_BUFFER, "0");
            saslClientProperties.put(Sasl.CREDENTIALS, getGSSCredential(credential.getUserName()));
        }
        SaslClient saslClient = Sasl.createSaslClient(new String[] { GSSAPI.getMechanismName() }, credential.getUserName(), credential.getMechanismProperty(SERVICE_NAME_KEY, SERVICE_NAME_DEFAULT_VALUE), getHostName(serverAddress), saslClientProperties, null);
        if (saslClient == null) {
            throw new MongoSecurityException(credential, String.format("No platform support for %s mechanism", GSSAPI));
        }
        return saslClient;
    } catch (SaslException e) {
        throw new MongoSecurityException(credential, "Exception initializing SASL client", e);
    } catch (GSSException e) {
        throw new MongoSecurityException(credential, "Exception initializing GSSAPI credentials", e);
    } catch (UnknownHostException e) {
        throw new MongoSecurityException(credential, "Unable to canonicalize host name + " + serverAddress);
    }
}