v7db.auth.PasswordUtil.java Source code

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Here is the source code for v7db.auth.PasswordUtil.java

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/**
 * Copyright (c) 2011-2012, Thilo Planz. All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

package v7db.auth;

import org.apache.commons.lang3.StringUtils;

import arlut.csd.crypto.MD5Crypt;

public class PasswordUtil {

    /**
     * Checks the password against the password digest (which can be in a number
     * of supported formats, they will all the checked in turn).
     * 
     * @return true, if the password matches the digest
     */
    public static boolean check(char[] password, Object digest) {
        if (digest instanceof String) {
            String str = (String) digest;
            // UNIX MD5 crypt
            if ((str.startsWith("$1$") || str.startsWith("$apr1$"))
                    && MD5Crypt.verifyPassword(new String(password), str))
                return true;
            if ((str.startsWith("{CRYPT}") && check(password, StringUtils.substringAfter(str, "{CRYPT}"))))
                return true;
        }
        return false;
    }
}