/**
 * $RCSfile: ,v $
 * $Revision: $
 * $Date: $
 * 
 * Copyright (C) 2004-2011 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.
 * 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;

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

import java.util.HashMap;
import java.util.Map;
import java.util.Vector;


public class GSSAPIConfiguration extends Configuration {

    Map<String, Vector<AppConfigurationEntry>> configs;

    GSSAPIConfiguration() {
        super();
        init(true);
    }

    GSSAPIConfiguration(boolean config_from_file) {
        super();
        init(config_from_file);
    }


   private void init(boolean config_from_file) {

        configs = new HashMap<String, Vector<AppConfigurationEntry>>();

        //The structure of the options is not well documented in terms of
        //data types.  Since the file version of the Configuration object
        //puts things in quotes, String is assumed. But boolean options
        //do not have quotes, and my represent different types internally.
        HashMap<String, String> c_options = new HashMap<String, String>();

        //If Kerberos config is not from a file, it's not possible to (re-)read the config file.
        //So don't set refreshKrb5Config
        if (config_from_file) {
            c_options.put("refreshKrb5Config", "true");
        }
        c_options.put("doNotPrompt", "true");
        c_options.put("useTicketCache", "true");
        c_options.put("debug", "true");


        putAppConfigurationEntry("com.sun.security.jgss.initiate", "com.sun.security.auth.module.Krb5LoginModule", AppConfigurationEntry.LoginModuleControlFlag.REQUIRED, c_options);
        putAppConfigurationEntry("com.sun.security.jgss.krb5.initiate", "com.sun.security.auth.module.Krb5LoginModule", AppConfigurationEntry.LoginModuleControlFlag.REQUIRED, c_options);

    }

    public AppConfigurationEntry[] getAppConfigurationEntry(String name) {
        AppConfigurationEntry[] a = new AppConfigurationEntry[1];
        if (configs.containsKey(name)) {
            Vector<AppConfigurationEntry> v = configs.get(name);
            a = v.toArray(a);
            return a;
        }
        else {
            return null;
        }
    }

    public boolean putAppConfigurationEntry(String name, String module, AppConfigurationEntry.LoginModuleControlFlag controlFlag, Map<String,String> options) {
        Vector<AppConfigurationEntry> v;
        if (configs.containsKey(name)) {
            v = configs.get(name);
        }
        else {
            v = new Vector<AppConfigurationEntry>();
            configs.put(name, v);
        }

        return v.add(new AppConfigurationEntry(module, controlFlag, options));
    }


    public void refresh() {
    }

    
}