feat: 重建 Bell GoAdmin 产品骨架 (#62)

Bell/server/common/ip.go

@@ -0,0 +1,28 @@
+package common
+
+import (
+	"github.com/gin-gonic/gin"
+	"strings"
+)
+
+func GetClientIP(c *gin.Context) string {
+	// 优先从 X-Forwarded-For 获取 IP
+	ip := c.Request.Header.Get("X-Forwarded-For")
+	if ip == "" || strings.Contains(ip, "127.0.0.1") {
+		// 如果为空或为本地地址，则尝试从 X-Real-IP 获取
+		ip = c.Request.Header.Get("X-real-ip")
+	}
+	if ip == "" {
+		// 如果仍为空，则使用 RemoteIP
+		ip = c.RemoteIP()
+	}
+	if ip == "" || ip == "127.0.0.1" {
+		// 如果仍为空或为本地地址，则使用 ClientIP
+		ip = c.ClientIP()
+	}
+	if ip == "" {
+		// 最后兜底为本地地址
+		ip = "127.0.0.1"
+	}
+	return ip
+}