net.duckling.ddl.util.PictureCheckCodeUtil.java Source code

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Here is the source code for net.duckling.ddl.util.PictureCheckCodeUtil.java

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/*
 * Copyright (c) 2008-2016 Computer Network Information Center (CNIC), Chinese Academy of Sciences.
 * 
 * This file is part of Duckling project.
 *
 * 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 net.duckling.ddl.util;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang.StringUtils;

public final class PictureCheckCodeUtil {

    /**
     * ?request?????????
     * @param request
     * @param code
     * @param type
     * @param reflesh true typesession??false?
     * @return
     */
    public static boolean checkCode(HttpServletRequest request, String code, String type, boolean reflesh) {
        if (StringUtils.isEmpty(type) || StringUtils.isEmpty(code)) {
            return false;
        }
        String c = (String) request.getSession().getAttribute(type);
        if (!StringUtils.isEmpty(c) && c.equalsIgnoreCase(code)) {
            if (reflesh) {
                request.getSession().removeAttribute(type);
            }
            return true;
        } else {
            request.getSession().removeAttribute(type);
            return false;
        }

    }
}