From f7b2d885bc64a0598facb2b5a0d89dcdf5921902 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期三, 27 九月 2023 16:26:11 +0800
Subject: [PATCH] 修改代理服务-3

---
 src/main/java/com/moon/server/helper/HttpHelper.java |   73 ++++++++++++++++++++++++++++++------
 1 files changed, 61 insertions(+), 12 deletions(-)

diff --git a/src/main/java/com/moon/server/helper/HttpHelper.java b/src/main/java/com/moon/server/helper/HttpHelper.java
index 7148fba..19d8eff 100644
--- a/src/main/java/com/moon/server/helper/HttpHelper.java
+++ b/src/main/java/com/moon/server/helper/HttpHelper.java
@@ -1,5 +1,7 @@
 package com.moon.server.helper;
 
+import com.moon.server.entity.all.StaticData;
+import com.moon.server.entity.sys.ResEntity;
 import org.apache.http.*;
 import org.apache.http.client.config.CookieSpecs;
 import org.apache.http.client.config.RequestConfig;
@@ -18,10 +20,10 @@
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.io.IOException;
-import java.io.OutputStream;
 import java.net.HttpCookie;
 import java.net.URI;
 import java.net.URISyntaxException;
+import java.nio.charset.StandardCharsets;
 import java.util.Enumeration;
 
 /**
@@ -51,7 +53,7 @@
         }
     }
 
-    public void service(HttpServletRequest request, HttpServletResponse response, String url, String cookie) throws ServletException, IOException {
+    public void service(HttpServletRequest request, HttpServletResponse response, ResEntity entity, String url) throws ServletException, IOException {
         HttpRequest proxyRequest;
         if (request.getHeader(HttpHeaders.CONTENT_LENGTH) != null || request.getHeader(HttpHeaders.TRANSFER_ENCODING) != null) {
             proxyRequest = newProxyRequestWithEntity(request, url);
@@ -63,13 +65,10 @@
         // copyRequestHeaders(request, proxyRequest, host);
         //setXrForwardedForHeader(request, proxyRequest);
 
-        if (!StringHelper.isEmpty(cookie)) {
-            proxyRequest.addHeader("Cookie", cookie + "; ");
-        }
+        // if (!StringHelper.isEmpty(cookie)) proxyRequest.addHeader("Cookie", cookie + "; ")
 
         CloseableHttpClient client = null;
         HttpResponse proxyResponse = null;
-
         try {
             client = this.createHttpClient();
             proxyResponse = client.execute(host, proxyRequest);
@@ -83,7 +82,7 @@
             if (statusCode == HttpServletResponse.SC_NOT_MODIFIED) {
                 response.setIntHeader(HttpHeaders.CONTENT_LENGTH, 0);
             } else {
-                copyResponseEntity(proxyResponse, response);
+                copyResponseEntity(proxyResponse, request, response, entity);
             }
         } catch (Exception ex) {
             throw new ServletException(ex.getMessage());
@@ -267,12 +266,62 @@
         return theUrl;
     }
 
-    protected void copyResponseEntity(HttpResponse proxyResponse, HttpServletResponse response) throws IOException {
+    protected void copyResponseEntity(HttpResponse proxyResponse, HttpServletRequest request, HttpServletResponse response, ResEntity res) throws IOException {
         HttpEntity entity = proxyResponse.getEntity();
-        if (entity != null) {
-            //String str = EntityUtils.toString(entity, "UTF-8")
-            OutputStream servletOutputStream = response.getOutputStream();
-            entity.writeTo(servletOutputStream);
+        if (null == entity) {
+            return;
         }
+
+        switch (res.getCategory()) {
+            case 2:
+                copeGeoService(proxyResponse, request, response, res);
+                break;
+            case 3:
+                copeSjService(proxyResponse, request, response, res);
+                break;
+            default:
+                entity.writeTo(response.getOutputStream());
+                break;
+        }
+    }
+
+    private void copeGeoService(HttpResponse proxyResponse, HttpServletRequest request, HttpServletResponse response, ResEntity res) throws IOException {
+        if (StaticData.GET_CAPABILITIES.equals(res.getBak())) {
+            //
+        }
+
+        proxyResponse.getEntity().writeTo(response.getOutputStream());
+    }
+
+    private void copeSjService(HttpResponse proxyResponse, HttpServletRequest request, HttpServletResponse response, ResEntity res) throws IOException {
+        Header[] headers = proxyResponse.getHeaders("content-type");
+        if (null != headers && headers.length > 0 && headers[0].getValue().contains(StaticData.TEXT_XML)) {
+            String str = filterStr(request, response, res, EntityUtils.toString(proxyResponse.getEntity(), "UTF-8"));
+            byte[] bytes = str.getBytes(StandardCharsets.UTF_8);
+            response.setContentLength(bytes.length);
+            response.getOutputStream().write(bytes);
+        } else {
+            proxyResponse.getEntity().writeTo(response.getOutputStream());
+        }
+    }
+
+    private String filterStr(HttpServletRequest request, HttpServletResponse response, ResEntity res, String str) {
+        if (str.contains(res.getUrl())) {
+            String proxyUrl = res.getProxy().replace("{token}", response.getHeader("token"));
+            proxyUrl = request.getRequestURL().substring(0, request.getRequestURL().indexOf(proxyUrl) + proxyUrl.length());
+            str = str.replace(res.getUrl(), proxyUrl);
+
+            if (!StringHelper.isEmpty(res.getArgs())) {
+                // str = str.replace("?" + res.getArgs(), "").replace("&amp;" + res.getArgs(), "")
+                str = str.replace("?" + res.getArgs() + "\"", "\"").replace("&amp;" + res.getArgs() + "\"", "\"")
+                        .replace("?" + res.getArgs() + "&amp;", "?").replace("&amp;" + res.getArgs() + "&amp;", "&amp;");
+            }
+
+            if (StaticData.I3 == res.getCategory() && str.contains(StaticData.REST_LAYER)) {
+                str = str.replace(res.getUrl().replace("/v6/wmts/", StaticData.REST_LAYER), proxyUrl.replace("/proxy/", "/proxy/rest/"));
+            }
+        }
+
+        return str;
     }
 }

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