🔖 v1.2.3
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-99
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/*
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* Copyright (c) 2018-2025, lengleng All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* Neither the name of the pig4cloud.com developer nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* Author: lengleng (wangiegie@gmail.com)
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*/
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package com.pig4cloud.pigx.gateway.config;
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import com.google.code.kaptcha.impl.DefaultKaptcha;
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import com.google.code.kaptcha.util.Config;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import java.util.Properties;
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/**
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* @author lengleng
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* @date 2017-12-21 21:12:18
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*/
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@Configuration
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public class KaptchaConfiguration {
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private static final String KAPTCHA_BORDER = "kaptcha.border";
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private static final String KAPTCHA_TEXTPRODUCER_FONT_COLOR = "kaptcha.textproducer.font.color";
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private static final String KAPTCHA_TEXTPRODUCER_CHAR_SPACE = "kaptcha.textproducer.char.space";
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private static final String KAPTCHA_IMAGE_WIDTH = "kaptcha.image.width";
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private static final String KAPTCHA_IMAGE_HEIGHT = "kaptcha.image.height";
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private static final String KAPTCHA_TEXTPRODUCER_CHAR_LENGTH = "kaptcha.textproducer.char.length";
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private static final Object KAPTCHA_IMAGE_FONT_SIZE = "kaptcha.textproducer.font.size";
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/**
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* 默认生成图形验证码宽度
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*/
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String DEFAULT_IMAGE_WIDTH = "100";
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/**
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* 默认生成图像验证码高度
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*/
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String DEFAULT_IMAGE_HEIGHT = "40";
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/**
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* 默认生成图形验证码长度
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*/
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String DEFAULT_IMAGE_LENGTH = "4";
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/**
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* 默认生成图形验证码过期时间
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*/
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int DEFAULT_IMAGE_EXPIRE = 60;
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/**
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* 边框颜色，合法值： r,g,b (and optional alpha) 或者 white,black,blue.
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*/
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String DEFAULT_COLOR_FONT = "black";
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/**
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* 图片边框
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*/
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String DEFAULT_IMAGE_BORDER = "no";
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/**
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* 默认图片间隔
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*/
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String DEFAULT_CHAR_SPACE = "5";
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/**
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* 默认保存code的前缀
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*/
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String DEFAULT_CODE_KEY = "DEFAULT_CODE_KEY";
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/**
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* 验证码文字大小
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*/
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String DEFAULT_IMAGE_FONT_SIZE = "30";
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@Bean
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public DefaultKaptcha producer() {
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Properties properties = new Properties();
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properties.put(KAPTCHA_BORDER, DEFAULT_IMAGE_BORDER);
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properties.put(KAPTCHA_TEXTPRODUCER_FONT_COLOR, DEFAULT_COLOR_FONT);
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properties.put(KAPTCHA_TEXTPRODUCER_CHAR_SPACE, DEFAULT_CHAR_SPACE);
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properties.put(KAPTCHA_IMAGE_WIDTH, DEFAULT_IMAGE_WIDTH);
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properties.put(KAPTCHA_IMAGE_HEIGHT, DEFAULT_IMAGE_HEIGHT);
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properties.put(KAPTCHA_IMAGE_FONT_SIZE, DEFAULT_IMAGE_FONT_SIZE);
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properties.put(KAPTCHA_TEXTPRODUCER_CHAR_LENGTH, DEFAULT_IMAGE_LENGTH);
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Config config = new Config(properties);
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DefaultKaptcha defaultKaptcha = new DefaultKaptcha();
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defaultKaptcha.setConfig(config);
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return defaultKaptcha;
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}
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}
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-25
@@ -1,25 +0,0 @@
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/*
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* Copyright (c) 2018-2025, lengleng All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* Neither the name of the pig4cloud.com developer nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* Author: lengleng (wangiegie@gmail.com)
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*/
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package com.pig4cloud.pigx.gateway.exception;
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/**
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* @author lengleng
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*/
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public class ValidateCodeException extends Exception {
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}
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package com.pig4cloud.pigx.gateway.filter;
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import cn.hutool.core.util.StrUtil;
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import com.pig4cloud.pigx.gateway.exception.ValidateCodeException;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.cloud.gateway.filter.GatewayFilter;
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import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.server.reactive.ServerHttpRequest;
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import org.springframework.http.server.reactive.ServerHttpResponse;
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import org.springframework.stereotype.Component;
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/**
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* @author lengleng
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* @date 2018/7/4
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* 验证码处理
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*/
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@Slf4j
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@Component
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public class ImageCodeGatewayFilter extends AbstractGatewayFilterFactory {
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private static final String OAUTH_TOKEN_URL = "/oauth/token";
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public static final String DEFAULT_CODE_KEY = "DEFAULT_CODE_KEY";
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@Autowired
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private RedisTemplate redisTemplate;
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@Override
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public GatewayFilter apply(Object config) {
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return (exchange, chain) -> {
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ServerHttpRequest request = exchange.getRequest();
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// 不是登录请求，直接向下执行
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if (!StrUtil.containsAnyIgnoreCase(request.getURI().getPath(), OAUTH_TOKEN_URL)) {
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return chain.filter(exchange);
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}
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try {
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checkCode(request);
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} catch (ValidateCodeException e) {
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ServerHttpResponse response = exchange.getResponse();
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response.setStatusCode(HttpStatus.PRECONDITION_REQUIRED);
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return response.setComplete();
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}
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return chain.filter(exchange);
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};
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}
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/**
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* 检查code
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*
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* @param request
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* @throws ValidateCodeException 校验异常
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*/
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private void checkCode(ServerHttpRequest request) throws ValidateCodeException {
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String code = request.getQueryParams().getFirst("code");
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if (StrUtil.isBlank(code)) {
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throw new ValidateCodeException();
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}
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String randomStr = request.getQueryParams().getFirst("randomStr");
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if (StrUtil.isBlank(randomStr)) {
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throw new ValidateCodeException();
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}
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String key = DEFAULT_CODE_KEY + randomStr;
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if (!redisTemplate.hasKey(key)) {
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throw new ValidateCodeException();
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}
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Object codeObj = redisTemplate.opsForValue().get(key);
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if (codeObj == null) {
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throw new ValidateCodeException();
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}
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String saveCode = codeObj.toString();
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if (StrUtil.isBlank(saveCode)) {
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redisTemplate.delete(key);
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throw new ValidateCodeException();
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}
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if (!StrUtil.equals(saveCode, code)) {
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redisTemplate.delete(key);
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throw new ValidateCodeException();
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}
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redisTemplate.delete(key);
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}
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}
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-77
@@ -1,77 +0,0 @@
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/*
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* Copyright (c) 2018-2025, lengleng All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* Neither the name of the pig4cloud.com developer nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* Author: lengleng (wangiegie@gmail.com)
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*/
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package com.pig4cloud.pigx.gateway.handle;
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import com.google.code.kaptcha.Producer;
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import com.pig4cloud.pigx.gateway.filter.ImageCodeGatewayFilter;
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import lombok.AllArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.core.io.ByteArrayResource;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.MediaType;
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import org.springframework.stereotype.Component;
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import org.springframework.util.FastByteArrayOutputStream;
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import org.springframework.web.reactive.function.BodyInserters;
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import org.springframework.web.reactive.function.server.HandlerFunction;
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import org.springframework.web.reactive.function.server.ServerRequest;
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import org.springframework.web.reactive.function.server.ServerResponse;
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import reactor.core.publisher.Mono;
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import javax.imageio.ImageIO;
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import java.awt.image.BufferedImage;
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import java.io.IOException;
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import java.util.concurrent.TimeUnit;
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/**
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* @author lengleng
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* @date 2018/7/5
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* 验证码生成逻辑处理类
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*/
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@Slf4j
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@Component
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@AllArgsConstructor
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public class ImageCodeHandler implements HandlerFunction<ServerResponse> {
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private final Producer producer;
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private final RedisTemplate redisTemplate;
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@Override
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public Mono<ServerResponse> handle(ServerRequest serverRequest) {
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//生成验证码
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String text = producer.createText();
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BufferedImage image = producer.createImage(text);
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//保存验证码信息
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String randomStr = serverRequest.queryParam("randomStr").get();
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redisTemplate.opsForValue().set(ImageCodeGatewayFilter.DEFAULT_CODE_KEY + randomStr, text, 60, TimeUnit.SECONDS);
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// 转换流信息写出
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FastByteArrayOutputStream os = new FastByteArrayOutputStream();
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try {
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ImageIO.write(image, "jpeg", os);
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} catch (IOException e) {
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log.error("ImageIO write err", e);
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return Mono.error(e);
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}
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return ServerResponse
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.status(HttpStatus.OK)
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.contentType(MediaType.IMAGE_JPEG)
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.body(BodyInserters.fromResource(new ByteArrayResource(os.toByteArray())));
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}
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}
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