nl.surfnet.coin.teams.util.TokenUtil.java Source code

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Here is the source code for nl.surfnet.coin.teams.util.TokenUtil.java

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/*
 * Copyright 2011 SURFnet bv, The Netherlands
 *
 * 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 nl.surfnet.coin.teams.util;

import org.apache.commons.lang.RandomStringUtils;
import org.apache.commons.lang.StringUtils;
import org.springframework.web.bind.support.SessionStatus;

/**
 *
 */
public final class TokenUtil {

    private static final int TOKEN_LENGTH = 256;
    public static final String TOKENCHECK = "tokencheck";

    public static String generateSessionToken() {
        return RandomStringUtils.randomAlphanumeric(TOKEN_LENGTH);
    }

    public static void checkTokens(String sessionToken, String token, SessionStatus status) {
        if (StringUtils.length(sessionToken) != TOKEN_LENGTH || !(sessionToken.equals(token))) {
            status.setComplete();
            throw new SecurityException("Token does not match");
        }
    }

}