修复文件上传大小不一致问题

sop-common/sop-gateway-common/src/main/java/com/gitee/sop/gatewaycommon/gateway/ServerWebExchangeUtil.java

@@ -30,6 +30,8 @@ import reactor.core.publisher.Mono;
 
 import javax.servlet.http.HttpServletRequest;
 import java.io.IOException;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
 import java.nio.charset.StandardCharsets;
 import java.util.Collections;
 import java.util.List;
@@ -47,6 +49,10 @@ public class ServerWebExchangeUtil {
     private static final String UNKNOWN_PATH = "/sop/unknown";
     private static final String REST_PATH = "/rest";
 
+    private static final String IP_UNKNOWN = "unknown";
+    private static final String IP_LOCAL = "127.0.0.1";
+    private static final int IP_LEN = 15;
+
     private static FormHttpMessageConverter formHttpMessageConverter = new FormHttpMessageConverter();
 
     private static final List<HttpMessageReader<?>> messageReaders;
@@ -111,21 +117,31 @@ public class ServerWebExchangeUtil {
         return chain.filter(newExchange);
     }
 
-    public static ApiParam getApiParam(ServerWebExchange exchange, String body) {
+    public static ApiParam getApiParamByQuery(ServerWebExchange exchange, String query) {
+        ApiParam apiParam = new ApiParam();
+        String ip = getIP(exchange.getRequest());
+        apiParam.setIp(ip);
+        Map<String, ?> params = RequestUtil.parseQueryToMap(query);
+        if (params != null) {
+            apiParam.putAll(params);
+        }
+        setApiParam(exchange, apiParam);
+        return apiParam;
+    }
+
+    public static ApiParam getApiParam(ServerWebExchange exchange, byte[] body) {
         MediaType contentType = exchange.getRequest().getHeaders().getContentType();
         if (contentType == null) {
             contentType = MediaType.APPLICATION_FORM_URLENCODED;
         }
         ApiParam apiParam = new ApiParam();
-        String ip = Optional.ofNullable(exchange.getRequest().getRemoteAddress())
+        String ip = getIP(exchange.getRequest());
-                .map(address -> address.getAddress().getHostAddress())
-                .orElse("");
         apiParam.setIp(ip);
         Map<String, ?> params = null;
         String contentTypeStr = contentType.toString().toLowerCase();
         // 如果是json方式提交
         if (StringUtils.containsAny(contentTypeStr, "json", "text")) {
-            JSONObject jsonObject = JSON.parseObject(body);
+            JSONObject jsonObject = JSON.parseObject(new String(body, SopConstants.CHARSET_UTF8));
             apiParam.putAll(jsonObject);
         } else if (StringUtils.containsIgnoreCase(contentTypeStr, "multipart")) {
             // 如果是文件上传请求
@@ -136,7 +152,7 @@ public class ServerWebExchangeUtil {
             apiParam.setUploadContext(uploadInfo.getUploadContext());
         } else {
             // APPLICATION_FORM_URLENCODED请求
-            params = RequestUtil.parseQueryToMap(body);
+            params = RequestUtil.parseQueryToMap(new String(body, SopConstants.CHARSET_UTF8));
         }
         if (params != null) {
             apiParam.putAll(params);
@@ -145,6 +161,45 @@ public class ServerWebExchangeUtil {
         return apiParam;
     }
 
+    /**
+     * 获取客户端真实ip
+     * @param request request
+     * @return 返回ip
+     */
+    public static String getIP(ServerHttpRequest request) {
+        HttpHeaders headers = request.getHeaders();
+        String ipAddress = headers.getFirst("x-forwarded-for");
+        if (ipAddress == null || ipAddress.length() == 0 || IP_UNKNOWN.equalsIgnoreCase(ipAddress)) {
+            ipAddress = headers.getFirst("Proxy-Client-IP");
+        }
+        if (ipAddress == null || ipAddress.length() == 0 || IP_UNKNOWN.equalsIgnoreCase(ipAddress)) {
+            ipAddress = headers.getFirst("WL-Proxy-Client-IP");
+        }
+        if (ipAddress == null || ipAddress.length() == 0 || IP_UNKNOWN.equalsIgnoreCase(ipAddress)) {
+            ipAddress = Optional.ofNullable(request.getRemoteAddress())
+                    .map(address -> address.getAddress().getHostAddress())
+                    .orElse("");
+            if (IP_LOCAL.equals(ipAddress)) {
+                // 根据网卡取本机配置的IP
+                try {
+                    InetAddress inet = InetAddress.getLocalHost();
+                    ipAddress = inet.getHostAddress();
+                } catch (UnknownHostException e) {
+                    // ignore
+                }
+            }
+        }
+
+        // 对于通过多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割
+        if (ipAddress != null && ipAddress.length() > IP_LEN) {
+            int index = ipAddress.indexOf(",");
+            if (index > 0) {
+                ipAddress = ipAddress.substring(0, index);
+            }
+        }
+        return ipAddress;
+    }
+
     public static ApiParam getApiParam(ServerWebExchange exchange, Map<String, String> params) {
         ApiParam apiParam = new ApiParam();
         apiParam.putAll(params);
@@ -204,11 +259,10 @@ public class ServerWebExchangeUtil {
      * 获取一个文件上传request
      *
      * @param exchange    当前ServerWebExchange
-     * @param requestBody 上传文件请求体内容
+     * @param data 上传文件请求体内容
      * @return 返回文件上传request
      */
-    public static HttpServletRequest getFileUploadRequest(ServerWebExchange exchange, String requestBody) {
+    public static HttpServletRequest getFileUploadRequest(ServerWebExchange exchange, byte[] data) {
-        byte[] data = requestBody.getBytes(StandardCharsets.UTF_8);
         return new FileUploadHttpServletRequest(exchange.getRequest(), data);
     }
 

sop-common/sop-gateway-common/src/main/java/com/gitee/sop/gatewaycommon/gateway/filter/IndexFilter.java

@@ -82,9 +82,8 @@ public class IndexFilter implements WebFilter {
                 // 读取请求体中的内容
                 Mono<?> modifiedBody = serverRequest.bodyToMono(byte[].class)
                         .flatMap(data -> {
-                            String body = new String(data, SopConstants.CHARSET_UTF8);
                             // 构建ApiParam
-                            ApiParam apiParam = ServerWebExchangeUtil.getApiParam(exchange, body);
+                            ApiParam apiParam = ServerWebExchangeUtil.getApiParam(exchange, data);
                             // 签名验证
                             doValidate(exchange, apiParam);
                             return Mono.just(data);
@@ -113,7 +112,7 @@ public class IndexFilter implements WebFilter {
                 // 原始参数
                 String originalQuery = uri.getRawQuery();
                 // 构建ApiParam
-                ApiParam apiParam = ServerWebExchangeUtil.getApiParam(exchange, originalQuery);
+                ApiParam apiParam = ServerWebExchangeUtil.getApiParamByQuery(exchange, originalQuery);
                 // 签名验证
                 doValidate(exchange, apiParam);