com.buession.cas.web.controller.ValidateCaptchaController.java Source code

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Here is the source code for com.buession.cas.web.controller.ValidateCaptchaController.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The ASF licenses this file to you 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.
 * 
 * =================================================================================================
 * 
 * This software consists of voluntary contributions made by many individuals on behalf of the
 * Apache Software Foundation. For more information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 * 
 * +------------------------------------------------------------------------------------------------+
 * | License: http://cas-server-support.buession.com.cn/LICENSE                            |
 * | Author: Yong.Teng <webmaster@buession.com>                                        |
 * | Copyright @ 2013-2014 Buession.com Inc.                                          |
 * +------------------------------------------------------------------------------------------------+
 */
package com.buession.cas.web.controller;

import java.io.PrintWriter;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.validation.constraints.NotNull;

import org.springframework.stereotype.Controller;
import org.springframework.util.Assert;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

import com.buession.cas.service.CaptchaService;

/**
 * ???
 * 
 * @author Yong.Teng <webmaster@buession.com>
 */
@Controller("/captcha")
public class ValidateCaptchaController extends AbstractController {

    /**
     * ?? Service
     */
    @NotNull
    @Resource
    private CaptchaService captchaService;

    /**
     * ???
     */
    @NotNull
    private String requestParamName;

    public ValidateCaptchaController() {
        setCacheSeconds(0);
    }

    /**
     * ?? Service
     * 
     * @return ?? Service
     */
    public CaptchaService getCaptchaService() {
        return captchaService;
    }

    /**
     * ?? Service
     * 
     * @param captchaService
     *        ?? Service
     */
    public void setCaptchaService(CaptchaService captchaService) {
        this.captchaService = captchaService;
    }

    /**
     * ???
     * 
     * @return ???
     */
    public String getRequestParamName() {
        return requestParamName;
    }

    /**
     * ???
     * 
     * @param requestParamName
     *        ???
     */
    public void setRequestParamName(final String requestParamName) {
        Assert.hasText(requestParamName, "RequestParamName must be have length; it could not be null or empty");
        this.requestParamName = requestParamName;
    }

    /**
     * @param request
     *        HttpServletRequest
     * @param response
     *        HttpServletResponse
     * @return
     */
    @RequestMapping(value = "/validateCode")
    public String index(HttpServletRequest request, HttpServletResponse response) {
        try {
            handleRequestInternal(request, response);
        } catch (Exception e) {
        }

        return null;
    }

    @Override
    protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        PrintWriter writer = response.getWriter();

        writer.write(captchaService.validate(request, request.getParameter(requestParamName)) == true ? "true"
                : "false");
        writer.close();

        return null;
    }

}