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+package com.sunyo.wlpt.cloud.config.server.config;
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+
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+import org.springframework.stereotype.Component;
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+
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+import javax.servlet.*;
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+import javax.servlet.http.HttpServletRequest;
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+import javax.servlet.http.HttpServletRequestWrapper;
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+import javax.servlet.http.HttpServletResponse;
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+import java.io.BufferedReader;
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+import java.io.ByteArrayInputStream;
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+import java.io.IOException;
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+
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+/**
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+ * @author 子诚
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+ * Description:解决GitLab的web钩子报错400问题。是因为gitlab自己添加一堆东西导致JSON解析异常
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+ * 时间:2020/6/23 17:10
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+ */
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+@Component
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+public class UrlFilter implements Filter {
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+ @Override
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+ public void init(FilterConfig filterConfig) throws ServletException {
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+
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+ }
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+
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+ @Override
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+ public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
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+ HttpServletRequest httpServletRequest = (HttpServletRequest)request;
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+ HttpServletResponse httpServletResponse = (HttpServletResponse)response;
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+
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+ String url = new String(httpServletRequest.getRequestURI());
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+
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+ //只过滤/actuator/bus-refresh请求
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+ if (!url.endsWith("/bus-refresh")) {
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+ chain.doFilter(request, response);
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+ return;
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+ }
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+
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+ //获取原始的body
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+ String body = readAsChars(httpServletRequest);
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+
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+ System.out.println("original body: "+ body);
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+
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+ //使用HttpServletRequest包装原始请求达到修改post请求中body内容的目的
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+ CustometRequestWrapper requestWrapper = new CustometRequestWrapper(httpServletRequest);
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+
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+ chain.doFilter(requestWrapper, response);
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+
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+ }
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+
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+ @Override
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+ public void destroy() {
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+
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+ }
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+
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+ private class CustometRequestWrapper extends HttpServletRequestWrapper {
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+ public CustometRequestWrapper(HttpServletRequest request) {
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+ super(request);
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+ }
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+
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+ @Override
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+ public ServletInputStream getInputStream() throws IOException {
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+ byte[] bytes = new byte[0];
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+ ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bytes);
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+
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+ return new ServletInputStream() {
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+ @Override
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+ public boolean isFinished() {
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+ return byteArrayInputStream.read() == -1 ? true:false;
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+ }
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+
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+ @Override
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+ public boolean isReady() {
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+ return false;
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+ }
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+
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+ @Override
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+ public void setReadListener(ReadListener readListener) {
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+
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+ }
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+
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+ @Override
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+ public int read() throws IOException {
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+ return byteArrayInputStream.read();
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+ }
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+ };
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+ }
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+ }
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88
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+
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89
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+ public static String readAsChars(HttpServletRequest request)
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90
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+ {
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91
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+
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92
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+ BufferedReader br = null;
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93
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+ StringBuilder sb = new StringBuilder("");
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+ try
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+ {
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+ br = request.getReader();
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+ String str;
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98
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+ while ((str = br.readLine()) != null)
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99
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+ {
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100
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+ sb.append(str);
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101
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+ }
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102
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+ br.close();
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103
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+ }
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104
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+ catch (IOException e)
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105
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+ {
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106
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+ e.printStackTrace();
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107
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+ }
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108
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+ finally
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109
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+ {
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110
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+ if (null != br)
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111
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+ {
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112
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+ try
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113
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+ {
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114
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+ br.close();
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115
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+ }
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116
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+ catch (IOException e)
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117
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+ {
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118
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+ e.printStackTrace();
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119
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+ }
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120
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+ }
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121
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+ }
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122
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+ return sb.toString();
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123
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+ }
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124
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+} |