1

common/socket/codec/CrossDomain.go

@@ -0,0 +1,33 @@
+package codec
+
+import (
+	"log"
+
+	"github.com/panjf2000/gnet/v2"
+)
+
+// CROSS_DOMAIN 定义跨域策略文件内容
+const CROSS_DOMAIN = "<?xml version=\"1.0\"?><!DOCTYPE cross-domain-policy><cross-domain-policy><allow-access-from domain=\"*\" to-ports=\"*\" /></cross-domain-policy>\x00"
+
+// TEXT 定义跨域请求的文本格式
+const TEXT = "<policy-file-request/>\x00"
+
+// Handle 处理网络连接
+func Handle(conn gnet.Conn) error {
+	// 读取数据并检查是否为跨域请求
+	data, err := conn.Peek(len(TEXT))
+	if err != nil {
+		log.Printf("Error reading cross-domain request: %v", err)
+		return err
+	}
+
+	if string(data) == TEXT { //判断是否是跨域请求
+		log.Printf("Received cross-domain request from %s", conn.RemoteAddr())
+		// 处理跨域请求
+		conn.Write([]byte(CROSS_DOMAIN))
+		conn.Discard(len(TEXT))
+		return nil
+	}
+
+	return nil
+}