修复空指针异常

648540858

2024-01-10 c25a99d60bef3d3bbd59fee895bd658928fd00db

 src/main/java/com/genersoft/iot/vmp/conf/ProxyServletConfig.java

@@ -2,10 +2,10 @@

import com.genersoft.iot.vmp.media.zlm.dto.MediaServerItem;
import com.genersoft.iot.vmp.service.IMediaServerService;
import org.apache.catalina.connector.ClientAbortException;
import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.springframework.core.annotation.Order;
import org.mitre.dsmiley.httpproxy.ProxyServlet;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -14,7 +14,7 @@
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.util.StringUtils;
import org.springframework.util.ObjectUtils;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
@@ -27,6 +27,7 @@
 */
@SuppressWarnings(value = {"rawtypes", "unchecked"})
@Configuration
@Order(1)
public class ProxyServletConfig {

    private final static Logger logger = LoggerFactory.getLogger(ProxyServletConfig.class);
@@ -55,13 +56,25 @@
            String queryStr = super.rewriteQueryStringFromRequest(servletRequest, queryString);
            MediaServerItem mediaInfo = getMediaInfoByUri(servletRequest.getRequestURI());
            if (mediaInfo != null) {
                if (!StringUtils.isEmpty(queryStr)) {
                if (!ObjectUtils.isEmpty(queryStr)) {
                    queryStr += "&secret=" + mediaInfo.getSecret();
                }else {
                    queryStr = "secret=" + mediaInfo.getSecret();
                }
            }
            return queryStr;
        }


        @Override
        protected HttpResponse doExecute(HttpServletRequest servletRequest, HttpServletResponse servletResponse,
                                         HttpRequest proxyRequest) throws IOException {
            HttpResponse response = super.doExecute(servletRequest, servletResponse, proxyRequest);
            response.removeHeaders("Access-Control-Allow-Origin");
            response.setHeader("Access-Control-Allow-Credentials","true");
            response.removeHeaders("Access-Control-Allow-Credentials");

            return response;
        }

        /**
@@ -76,9 +89,7 @@
            } catch (IOException ioException) {
                if (ioException instanceof ConnectException) {
                    logger.error("zlm 连接失败");
                } else if (ioException instanceof ClientAbortException) {
                    logger.error("zlm: 用户已中断连接，代理终止");
                } else {
                }  else {
                    logger.error("zlm 代理失败： ", e);
                }
            } catch (RuntimeException exception){
@@ -127,7 +138,7 @@
        MediaServerItem getMediaInfoByUri(String uri){
            String[] split = uri.split("/");
            String mediaServerId = split[2];
            if ("default".equals(mediaServerId)) {
            if ("default".equalsIgnoreCase(mediaServerId)) {
                return mediaServerService.getDefaultMediaServer();
            }else {
                return mediaServerService.getOne(mediaServerId);
@@ -143,9 +154,13 @@
            MediaServerItem mediaInfo = getMediaInfoByUri(requestURI);
            String url = super.rewriteUrlFromRequest(servletRequest);
            if (mediaInfo == null) {
                logger.error("[ZLM服务访问代理]，错误：处理url信息时未找到流媒体信息=>{}", requestURI);
                return  url;
            }
            return url.replace(mediaInfo.getId() + "/", "").replace("default/", "");
            if (!ObjectUtils.isEmpty(mediaInfo.getId())) {
                url = url.replace(mediaInfo.getId() + "/", "");
            }
            return url.replace("default/", "");
        }
    }

@@ -167,15 +182,28 @@
        protected String rewriteQueryStringFromRequest(HttpServletRequest servletRequest, String queryString) {
            String queryStr = super.rewriteQueryStringFromRequest(servletRequest, queryString);
            MediaServerItem mediaInfo = getMediaInfoByUri(servletRequest.getRequestURI());
            String remoteHost = String.format("http://%s:%s", mediaInfo.getIp(), mediaInfo.getHttpPort());
            if (mediaInfo != null) {
                if (!StringUtils.isEmpty(queryStr)) {
                    queryStr += "&remoteHost=" + remoteHost;
                }else {
                    queryStr = "remoteHost=" + remoteHost;
                }
            if (mediaInfo == null) {
                return null;
            }
            String remoteHost = String.format("http://%s:%s", mediaInfo.getStreamIp(), mediaInfo.getRecordAssistPort());
            if (!ObjectUtils.isEmpty(queryStr)) {
                queryStr += "&remoteHost=" + remoteHost;
            }else {
                queryStr = "remoteHost=" + remoteHost;
            }
            return queryStr;
        }


        @Override
        protected HttpResponse doExecute(HttpServletRequest servletRequest, HttpServletResponse servletResponse,
                                         HttpRequest proxyRequest) throws IOException {
            HttpResponse response = super.doExecute(servletRequest, servletResponse, proxyRequest);
            String origin = servletRequest.getHeader("origin");
            response.setHeader("Access-Control-Allow-Origin",origin);
            response.setHeader("Access-Control-Allow-Credentials","true");

            return response;
        }

        /**
@@ -190,9 +218,13 @@
            } catch (IOException ioException) {
                if (ioException instanceof ConnectException) {
                    logger.error("录像服务 连接失败");
                } else if (ioException instanceof ClientAbortException) {
                    logger.error("录像服务:用户已中断连接，代理终止");
                } else {
//                }else if (ioException instanceof ClientAbortException) {
//                    /**
//                     * TODO 使用这个代理库实现代理在遇到代理视频文件时，如果是206结果，会遇到报错蛋市目前功能正常，
//                     * TODO 暂时去除异常处理。后续使用其他代理框架修改测试
//                     */

                }else {
                    logger.error("录像服务 代理失败： ", e);
                }
            } catch (RuntimeException exception){
@@ -241,7 +273,7 @@
        MediaServerItem getMediaInfoByUri(String uri){
            String[] split = uri.split("/");
            String mediaServerId = split[2];
            if ("default".equals(mediaServerId)) {
            if ("default".equalsIgnoreCase(mediaServerId)) {
                return mediaServerService.getDefaultMediaServer();
            }else {
                return mediaServerService.getOne(mediaServerId);
@@ -258,9 +290,13 @@
            MediaServerItem mediaInfo = getMediaInfoByUri(requestURI);
            String url = super.rewriteUrlFromRequest(servletRequest);
            if (mediaInfo == null) {
                logger.error("[录像服务访问代理]，错误：处理url信息时未找到流媒体信息=>{}", requestURI);
                return  url;
            }
            return url.replace(mediaInfo.getId() + "/", "").replace("default/", "");
            if (!ObjectUtils.isEmpty(mediaInfo.getId())) {
                url = url.replace(mediaInfo.getId() + "/", "");
            }
            return url.replace("default/", "");
        }
    }