From 71c8abe501481f2029df623976f240d197edcfe8 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期一, 11 十一月 2024 15:07:36 +0800
Subject: [PATCH] 1

---
 src/main/java/com/se/simu/helper/HttpHelper.java       |  269 ++++++++++++++++++++++++++++++++++++++++++++
 src/main/java/com/se/simu/service/DbService.java       |   37 ++++++
 src/main/java/com/se/simu/controller/DbController.java |   35 +++++
 3 files changed, 341 insertions(+), 0 deletions(-)

diff --git a/src/main/java/com/se/simu/controller/DbController.java b/src/main/java/com/se/simu/controller/DbController.java
new file mode 100644
index 0000000..430dfa5
--- /dev/null
+++ b/src/main/java/com/se/simu/controller/DbController.java
@@ -0,0 +1,35 @@
+package com.se.simu.controller;
+
+import com.se.simu.helper.WebHelper;
+import com.se.simu.service.DbService;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@Api(tags = "鏁版嵁绠$悊")
+@Slf4j
+@RestController
+@RequestMapping("/db")
+@SuppressWarnings("ALL")
+public class DbController extends BaseController {
+    @Resource
+    DbService dbService;
+
+    @ApiOperation(value = "info")
+    @GetMapping(value = "/info")
+    public void info(HttpServletRequest req, HttpServletResponse res) {
+        try {
+            dbService.info(req, res);
+        } catch (Exception ex) {
+            WebHelper.writeJson2Page(res, HttpStatus.BAD_REQUEST, ex.getMessage());
+        }
+    }
+}
diff --git a/src/main/java/com/se/simu/helper/HttpHelper.java b/src/main/java/com/se/simu/helper/HttpHelper.java
new file mode 100644
index 0000000..561c0f8
--- /dev/null
+++ b/src/main/java/com/se/simu/helper/HttpHelper.java
@@ -0,0 +1,269 @@
+package com.se.simu.helper;
+
+import org.apache.http.*;
+import org.apache.http.client.config.CookieSpecs;
+import org.apache.http.client.config.RequestConfig;
+import org.apache.http.client.utils.URIUtils;
+import org.apache.http.entity.InputStreamEntity;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClients;
+import org.apache.http.message.BasicHeader;
+import org.apache.http.message.BasicHttpEntityEnclosingRequest;
+import org.apache.http.message.BasicHttpRequest;
+import org.apache.http.message.HeaderGroup;
+import org.apache.http.util.EntityUtils;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.Cookie;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.net.HttpCookie;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.Enumeration;
+
+@SuppressWarnings("ALL")
+public class HttpHelper {
+    private final static String HTTP_SLASH2 = "://";
+
+    private final static String HTTP_SLASH = "/";
+
+    private final static Integer THREE = 3;
+
+    protected static final HeaderGroup HOP_HEADERS;
+
+    static {
+        HOP_HEADERS = new HeaderGroup();
+
+        String[] headers = new String[]{
+                "Connection", "Keep-Alive", "Proxy-Authenticate", "Proxy-Authorization",
+                "TE", "Trailers", "Transfer-Encoding", "Upgrade",
+                //"X-RateLimit-Burst-Capacity", "X-RateLimit-Remaining", "X-RateLimit-Replenish-Rate",
+                "Access-Control-Allow-Origin", "Access-Control-Allow-Credentials", "Access-Control-Allow-Headers"};
+
+        for (String header : headers) {
+            HOP_HEADERS.addHeader(new BasicHeader(header, null));
+        }
+    }
+
+    public void service(HttpServletRequest request, HttpServletResponse response, String url) throws ServletException, IOException {
+        HttpRequest proxyRequest;
+        if (request.getHeader(HttpHeaders.CONTENT_LENGTH) != null || request.getHeader(HttpHeaders.TRANSFER_ENCODING) != null) {
+            proxyRequest = newProxyRequestWithEntity(request, url);
+        } else {
+            proxyRequest = new BasicHttpRequest(request.getMethod(), url);
+        }
+
+        HttpHost host = this.getTargetHost(url);
+        // copyRequestHeaders(request, proxyRequest, host);
+        //setXrForwardedForHeader(request, proxyRequest);
+
+        // if (!StringHelper.isEmpty(cookie)) proxyRequest.addHeader("Cookie", cookie + "; ")
+
+        CloseableHttpClient client = null;
+        HttpResponse proxyResponse = null;
+        try {
+            client = this.createHttpClient();
+            proxyResponse = client.execute(host, proxyRequest);
+
+            int statusCode = proxyResponse.getStatusLine().getStatusCode();
+            // response.setStatus(statusCode, proxyResponse.getStatusLine().getReasonPhrase())
+            response.setStatus(statusCode);
+
+            copyResponseHeaders(proxyResponse, request, response, url);
+
+            if (statusCode == HttpServletResponse.SC_NOT_MODIFIED) {
+                response.setIntHeader(HttpHeaders.CONTENT_LENGTH, 0);
+            } else {
+                copyResponseEntity(proxyResponse, request, response);
+            }
+        } catch (Exception ex) {
+            throw new ServletException(ex.getMessage());
+        } finally {
+            if (proxyResponse != null) {
+                EntityUtils.consumeQuietly(proxyResponse.getEntity());
+            }
+            if (client != null) {
+                client.close();
+            }
+        }
+    }
+
+    protected HttpRequest newProxyRequestWithEntity(HttpServletRequest request, String url) throws IOException {
+        String method = request.getMethod();
+        HttpEntityEnclosingRequest proxyRequest = new BasicHttpEntityEnclosingRequest(method, url);
+        proxyRequest.setEntity(new InputStreamEntity(request.getInputStream(), getContentLength(request)));
+        //String str = EntityUtils.toString(proxyRequest.getEntity(), "UTF-8")
+
+        return proxyRequest;
+    }
+
+    private long getContentLength(HttpServletRequest request) {
+        String contentLengthHeader = request.getHeader("Content-Length");
+        if (contentLengthHeader != null) {
+            return Long.parseLong(contentLengthHeader);
+        }
+
+        return -1L;
+    }
+
+    protected void copyRequestHeaders(HttpServletRequest request, HttpRequest proxyRequest, HttpHost host) {
+        @SuppressWarnings("unchecked")
+        Enumeration<String> enumerationOfHeaderNames = request.getHeaderNames();
+
+        while (enumerationOfHeaderNames.hasMoreElements()) {
+            String headerName = enumerationOfHeaderNames.nextElement();
+            copyRequestHeader(request, proxyRequest, host, headerName);
+        }
+    }
+
+    protected void copyRequestHeader(HttpServletRequest request, HttpRequest proxyRequest, HttpHost host, String headerName) {
+        if (headerName.equalsIgnoreCase(HttpHeaders.CONTENT_LENGTH) || HOP_HEADERS.containsHeader(headerName)) {
+            return;
+        }
+
+        @SuppressWarnings("unchecked")
+        Enumeration<String> headers = request.getHeaders(headerName);
+        while (headers.hasMoreElements()) {
+            String headerValue = headers.nextElement();
+            if (headerName.equalsIgnoreCase(HttpHeaders.HOST)) {
+                headerValue = host.getHostName();
+                if (host.getPort() != -1) {
+                    headerValue += ":" + host.getPort();
+                }
+            } else if (headerName.equalsIgnoreCase(org.apache.http.cookie.SM.COOKIE)) {
+                headerValue = getRealCookie(headerValue);
+            }
+
+            proxyRequest.addHeader(headerName, headerValue);
+        }
+    }
+
+    protected HttpHost getTargetHost(String url) throws ServletException {
+        try {
+            URI uri = new URI(url);
+
+            return URIUtils.extractHost(uri);
+        } catch (URISyntaxException ex) {
+            throw new ServletException(ex.getMessage());
+        }
+    }
+
+    protected String getRealCookie(String cookieValue) {
+        StringBuilder escapedCookie = new StringBuilder();
+        String[] cookies = cookieValue.split("[;,]");
+        for (String cookie : cookies) {
+            String[] cookieSplit = cookie.split("=");
+            if (cookieSplit.length == 2) {
+                String cookieName = cookieSplit[0].trim();
+                if (cookieName.startsWith(cookieName)) {
+                    cookieName = cookieName.substring(cookieName.length());
+                    if (escapedCookie.length() > 0) {
+                        escapedCookie.append("; ");
+                    }
+                    escapedCookie.append(cookieName).append("=").append(cookieSplit[1].trim());
+                }
+            }
+        }
+
+        return escapedCookie.toString();
+    }
+
+    private void setXrForwardedForHeader(HttpServletRequest request, HttpRequest proxyRequest) {
+        String forHeaderName = "X-Forwarded-For";
+        String forHeader = request.getRemoteAddr();
+        String existingForHeader = request.getHeader(forHeaderName);
+        if (existingForHeader != null) {
+            forHeader = existingForHeader + ", " + forHeader;
+        }
+        proxyRequest.setHeader(forHeaderName, forHeader);
+
+        String protoHeaderName = "X-Forwarded-Proto";
+        String protoHeader = request.getScheme();
+        proxyRequest.setHeader(protoHeaderName, protoHeader);
+    }
+
+    protected CloseableHttpClient createHttpClient() {
+        RequestConfig requestConfig = RequestConfig.custom()
+                .setRedirectsEnabled(false)
+                .setCookieSpec(CookieSpecs.IGNORE_COOKIES)
+                .setConnectTimeout(-1)
+                .setSocketTimeout(-1)
+                .build();
+
+        // return HttpClientBuilder.create().setDefaultRequestConfig(requestConfig).build()
+        return HttpClients.custom()
+                .setDefaultRequestConfig(requestConfig)
+                .build();
+    }
+
+    protected void copyResponseHeaders(HttpResponse proxyResponse, HttpServletRequest request, HttpServletResponse response, String url) {
+        for (Header header : proxyResponse.getAllHeaders()) {
+            copyResponseHeader(request, response, header, url);
+        }
+    }
+
+    protected void copyResponseHeader(HttpServletRequest request, HttpServletResponse response, Header header, String url) {
+        String headerName = header.getName();
+        if (HOP_HEADERS.containsHeader(headerName)) {
+            return;
+        }
+
+        String headerValue = header.getValue();
+        if (headerName.equalsIgnoreCase(org.apache.http.cookie.SM.SET_COOKIE) || headerName.equalsIgnoreCase(org.apache.http.cookie.SM.SET_COOKIE2)) {
+            copyProxyCookie(request, response, headerValue);
+        } else if (headerName.equalsIgnoreCase(HttpHeaders.LOCATION)) {
+            response.addHeader(headerName, rewriteUrlFromResponse(request, url, headerValue));
+        } else {
+            response.addHeader(headerName, headerValue);
+        }
+    }
+
+    protected void copyProxyCookie(HttpServletRequest request, HttpServletResponse response, String headerValue) {
+        String path = request.getContextPath() + request.getServletPath();
+        if (path.isEmpty()) {
+            path = "/";
+        }
+
+        for (HttpCookie cookie : HttpCookie.parse(headerValue)) {
+            Cookie servletCookie = new Cookie(cookie.getName(), cookie.getValue());
+            servletCookie.setComment(cookie.getComment());
+            servletCookie.setMaxAge((int) cookie.getMaxAge());
+            servletCookie.setPath(path);
+
+            servletCookie.setSecure(cookie.getSecure());
+            servletCookie.setVersion(cookie.getVersion());
+            response.addCookie(servletCookie);
+        }
+    }
+
+    protected String rewriteUrlFromResponse(HttpServletRequest request, String targetUri, String theUrl) {
+        if (theUrl.startsWith(targetUri)) {
+            StringBuffer curUrl = request.getRequestURL();
+
+            int pos;
+            if ((pos = curUrl.indexOf(HTTP_SLASH2)) >= 0) {
+                if ((pos = curUrl.indexOf(HTTP_SLASH, pos + THREE)) >= 0) {
+                    curUrl.setLength(pos);
+                }
+            }
+
+            curUrl.append(request.getContextPath());
+            curUrl.append(request.getServletPath());
+            curUrl.append(theUrl, targetUri.length(), theUrl.length());
+
+            return curUrl.toString();
+        }
+
+        return theUrl;
+    }
+
+    protected void copyResponseEntity(HttpResponse proxyResponse, HttpServletRequest request, HttpServletResponse response) throws IOException {
+        HttpEntity entity = proxyResponse.getEntity();
+        if (null == entity) {
+            return;
+        }
+        entity.writeTo(response.getOutputStream());
+    }
+}
diff --git a/src/main/java/com/se/simu/service/DbService.java b/src/main/java/com/se/simu/service/DbService.java
new file mode 100644
index 0000000..eaac946
--- /dev/null
+++ b/src/main/java/com/se/simu/service/DbService.java
@@ -0,0 +1,37 @@
+package com.se.simu.service;
+
+import com.se.simu.config.PropertiesConfig;
+import com.se.simu.domain.dto.GeDb;
+import com.se.simu.helper.HttpHelper;
+import com.se.simu.helper.StringHelper;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.util.Date;
+
+@Slf4j
+@Service
+@SuppressWarnings("ALL")
+public class DbService {
+    @Resource
+    PropertiesConfig config;
+
+    @Resource
+    GedbService gedbService;
+
+    private final static long ONE_DAY = 24 * 60 * 60 * 1000;
+
+    public void info(HttpServletRequest req, HttpServletResponse res) throws Exception {
+        String token = gedbService.getToken();
+        GeDb db = gedbService.getSeDb(token);
+        String date = StringHelper.YMD_FORMAT.format(new Date(System.currentTimeMillis() - ONE_DAY));
+
+        String uri = String.format("%sgeo-service/statis/layer/data/info?dbid=%s&token=%s&caldate=%s", config.getHost(), db.getDbid(), token, date);
+
+        HttpHelper helper = new HttpHelper();
+        helper.service(req, res, uri);
+    }
+}

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