org.springframework.security.ldap.ppolicy.PasswordPolicyControlExtractor.java Source code

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Here is the source code for org.springframework.security.ldap.ppolicy.PasswordPolicyControlExtractor.java

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/*
 * Copyright 2002-2016 the original author or authors.
 *
 * 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
 *
 *      https://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.springframework.security.ldap.ppolicy;

import javax.naming.directory.DirContext;
import javax.naming.ldap.Control;
import javax.naming.ldap.LdapContext;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Obtains the <tt>PasswordPolicyControl</tt> from a context for use by other classes.
 *
 * @author Luke Taylor
 * @since 3.0
 */
public class PasswordPolicyControlExtractor {
    private static final Log logger = LogFactory.getLog(PasswordPolicyControlExtractor.class);

    public static PasswordPolicyResponseControl extractControl(DirContext dirCtx) {
        LdapContext ctx = (LdapContext) dirCtx;
        Control[] ctrls = null;
        try {
            ctrls = ctx.getResponseControls();
        } catch (javax.naming.NamingException e) {
            logger.error("Failed to obtain response controls", e);
        }

        for (int i = 0; ctrls != null && i < ctrls.length; i++) {
            if (ctrls[i] instanceof PasswordPolicyResponseControl) {
                return (PasswordPolicyResponseControl) ctrls[i];
            }
        }

        return null;
    }

}