Initial commit

internal/middleware/security.go

@@ -0,0 +1,31 @@
+// Filename: internal/middleware/security.go
+
+package middleware
+
+import (
+	"gemini-balancer/internal/service"
+	"gemini-balancer/internal/settings"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+func IPBanMiddleware(securityService *service.SecurityService, settingsManager *settings.SettingsManager) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if !settingsManager.IsIPBanEnabled() {
+			c.Next()
+			return
+		}
+		ip := c.ClientIP()
+		isBanned, err := securityService.IsIPBanned(c.Request.Context(), ip)
+		if err != nil {
+			c.Next()
+			return
+		}
+		if isBanned {
+			c.AbortWithStatusJSON(http.StatusForbidden, gin.H{"error": "您的IP已被暂时封禁，请稍后再试"})
+			return
+		}
+		c.Next()
+	}
+}