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36 lines
1.1 KiB
36 lines
1.1 KiB
4 years ago
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package com.tptj.course.hg.login.username;
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import com.fr.stable.CodeUtils;
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import com.fr.stable.StringUtils;
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import com.fr.web.utils.WebUtils;
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import javax.servlet.http.HttpServletRequest;
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/**
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* @author 秃破天际
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* @version 10.0
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* Created by 秃破天际 on 2021-05-12
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**/
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public class LoginMd5Filter extends LoginFilter {
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private static final String SECRET = "123456";
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protected String getUsername( HttpServletRequest req )throws Exception{
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String sign = WebUtils.getHTTPRequestParameter(req,"sign");
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String [] parts = sign.split("_");
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String username = parts[0];
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long timestamp = Long.parseLong(parts[1]);
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long crt_time = System.currentTimeMillis();
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if( crt_time - timestamp > 300000 || crt_time < timestamp ){
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return StringUtils.EMPTY;
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}
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String source = username+timestamp+SECRET;
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String md5 = CodeUtils.md5Encode(source,StringUtils.EMPTY,"MD5");
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//sign = username_timestamp_md5(username+timestamp+SECRET)
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if( StringUtils.equals(parts[2],md5) ){
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return username;
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}
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return StringUtils.EMPTY;
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}
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}
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