From 856c471472ce60abea2f0b5487e9edf2514516ec Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: Wed, 06 Nov 2024 10:20:18 +0800
Subject: [PATCH] 优化代码
---
ruoyi-gateway/src/main/java/com/ruoyi/gateway/filter/XssFilter.java | 38 ++++++++++++++++++++++++++++++++------
1 files changed, 32 insertions(+), 6 deletions(-)
diff --git a/ruoyi-gateway/src/main/java/com/ruoyi/gateway/filter/XssFilter.java b/ruoyi-gateway/src/main/java/com/ruoyi/gateway/filter/XssFilter.java
index 799625f..a82ee84 100644
--- a/ruoyi-gateway/src/main/java/com/ruoyi/gateway/filter/XssFilter.java
+++ b/ruoyi-gateway/src/main/java/com/ruoyi/gateway/filter/XssFilter.java
@@ -7,10 +7,13 @@
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.core.io.buffer.DataBuffer;
+import org.springframework.core.io.buffer.DataBufferFactory;
import org.springframework.core.io.buffer.DataBufferUtils;
+import org.springframework.core.io.buffer.DefaultDataBufferFactory;
import org.springframework.core.io.buffer.NettyDataBufferFactory;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
+import org.springframework.http.MediaType;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpRequestDecorator;
import org.springframework.stereotype.Component;
@@ -39,9 +42,19 @@
public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain)
{
ServerHttpRequest request = exchange.getRequest();
+ // xss开关未开启 或 通过nacos关闭，不过滤
+ if (!xss.getEnabled())
+ {
+ return chain.filter(exchange);
+ }
// GET DELETE 不过滤
HttpMethod method = request.getMethod();
- if (method == null || method.matches("GET") || method.matches("DELETE"))
+ if (method == null || method == HttpMethod.GET || method == HttpMethod.DELETE)
+ {
+ return chain.filter(exchange);
+ }
+ // 非json类型，不过滤
+ if (!isJsonRequest(exchange))
{
return chain.filter(exchange);
}
@@ -64,15 +77,17 @@
public Flux<DataBuffer> getBody()
{
Flux<DataBuffer> body = super.getBody();
- return body.map(dataBuffer -> {
- byte[] content = new byte[dataBuffer.readableByteCount()];
- dataBuffer.read(content);
- DataBufferUtils.release(dataBuffer);
+ return body.buffer().map(dataBuffers -> {
+ DataBufferFactory dataBufferFactory = new DefaultDataBufferFactory();
+ DataBuffer join = dataBufferFactory.join(dataBuffers);
+ byte[] content = new byte[join.readableByteCount()];
+ join.read(content);
+ DataBufferUtils.release(join);
String bodyStr = new String(content, StandardCharsets.UTF_8);
// 防xss攻击过滤
bodyStr = EscapeUtil.clean(bodyStr);
// 转成字节
- byte[] bytes = bodyStr.getBytes();
+ byte[] bytes = bodyStr.getBytes(StandardCharsets.UTF_8);
NettyDataBufferFactory nettyDataBufferFactory = new NettyDataBufferFactory(ByteBufAllocator.DEFAULT);
DataBuffer buffer = nettyDataBufferFactory.allocateBuffer(bytes.length);
buffer.write(bytes);
@@ -95,6 +110,17 @@
return serverHttpRequestDecorator;
}
+ /**
+ * 是否是Json请求
+ *
+ * @param exchange HTTP请求
+ */
+ public boolean isJsonRequest(ServerWebExchange exchange)
+ {
+ String header = exchange.getRequest().getHeaders().getFirst(HttpHeaders.CONTENT_TYPE);
+ return StringUtils.startsWithIgnoreCase(header, MediaType.APPLICATION_JSON_VALUE);
+ }
+
@Override
public int getOrder()
{
--
Gitblit v1.9.3