package com.genersoft.iot.vmp.conf;
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import org.apache.http.HttpRequest;
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import org.apache.http.HttpResponse;
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import org.apache.http.client.config.RequestConfig;
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import org.apache.http.impl.client.HttpClientBuilder;
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import org.mitre.dsmiley.httpproxy.ProxyServlet;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.web.servlet.ServletRegistrationBean;
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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 org.springframework.util.StringUtils;
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import javax.servlet.ServletException;
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import javax.servlet.ServletRequest;
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import javax.servlet.ServletResponse;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.net.ConnectException;
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import java.util.Locale;
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import java.util.Map;
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@Configuration
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public class ProxyServletConfig {
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private final static Logger logger = LoggerFactory.getLogger(ProxyServletConfig.class);
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@Autowired
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private MediaConfig mediaConfig;
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@Bean
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public ServletRegistrationBean zlmServletRegistrationBean(){
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ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new ZLMProxySerlet(),"/zlm/*");
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servletRegistrationBean.setName("zlm_Proxy");
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servletRegistrationBean.addInitParameter("targetUri", String.format("http://%s:%s", mediaConfig.getIp(), mediaConfig.getHttpPort()));
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servletRegistrationBean.addUrlMappings();
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if (logger.isDebugEnabled()) {
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servletRegistrationBean.addInitParameter("log", "true");
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}
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return servletRegistrationBean;
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}
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class ZLMProxySerlet extends ProxyServlet{
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@Override
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protected String rewriteQueryStringFromRequest(HttpServletRequest servletRequest, String queryString) {
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String queryStr = super.rewriteQueryStringFromRequest(servletRequest, queryString);
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if (!StringUtils.isEmpty(queryStr)) {
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queryStr += "&secret=" + mediaConfig.getSecret();
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}else {
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queryStr = "secret=" + mediaConfig.getSecret();
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}
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return queryStr;
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}
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@Override
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protected void handleRequestException(HttpRequest proxyRequest, HttpResponse proxyResonse, Exception e){
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System.out.println(e.getMessage());
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try {
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super.handleRequestException(proxyRequest, proxyResonse, e);
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} catch (ServletException servletException) {
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logger.error("zlm 代理失败： ", e);
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} catch (IOException ioException) {
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if (ioException instanceof ConnectException) {
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logger.error("zlm 连接失败");
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}else {
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logger.error("zlm 代理失败： ", e);
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}
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} catch (RuntimeException exception){
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logger.error("zlm 代理失败： ", e);
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}
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}
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}
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}
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