Java Security jaasConfigOption(Configuration jaasConfig, String loginContextName, String key, String loginModuleName)

Description

Returns the configuration option for key from the login context loginContextName of the specified JAAS configuration.

License

Apache License

Declaration

public static String jaasConfigOption(Configuration jaasConfig,
        String loginContextName, String key, String loginModuleName)
        throws IOException 

Method Source Code

//package com.java2s;
/**//  w w w  .  j a va 2s  . c o m
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */

import javax.security.auth.login.Configuration;
import javax.security.auth.login.AppConfigurationEntry;

import java.io.IOException;

public class Main {
    /**
     * Returns the configuration option for <code>key</code> from the login context
     * <code>loginContextName</code> of the specified JAAS configuration.
     * If login module name is specified, return option value only from that module.
     */
    public static String jaasConfigOption(Configuration jaasConfig,
            String loginContextName, String key, String loginModuleName)
            throws IOException {
        AppConfigurationEntry[] configurationEntries = jaasConfig
                .getAppConfigurationEntry(loginContextName);
        if (configurationEntries == null) {
            String errorMessage = "Could not find a '" + loginContextName
                    + "' entry in this JAAS configuration.";
            throw new IOException(errorMessage);
        }

        for (AppConfigurationEntry entry : configurationEntries) {
            if (loginModuleName != null
                    && !loginModuleName.equals(entry.getLoginModuleName()))
                continue;
            Object val = entry.getOptions().get(key);
            if (val != null)
                return (String) val;
        }
        return null;
    }
}

Related

1. getSubject()
2. getTicketGrantingTicket(Subject subject)
3. isDN(String user)
4. isOriginalTicketGrantingTicket(KerberosTicket ticket)
5. jaasConfig(String loginContextName, String key)
6. kinit(String username, char[] password)
7. logout()
8. parseDirectives(byte[] buf)
9. secretKey(final String key)