umstellung auf Service und Repository Verwendung - WIP

kontor-gin/internal/middleware/jwt.go

@@ -0,0 +1,35 @@
+package middleware
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	"github.com/golang-jwt/jwt/v5"
+)
+
+func JWT(secret []byte) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		h := c.GetHeader("Authorization")
+		if !strings.HasPrefix(h, "Bearer ") {
+			c.AbortWithStatusJSON(http.StatusUnauthorized,
+				gin.H{"error": "missing bearer token"})
+			return
+		}
+		raw := strings.TrimPrefix(h, "Bearer ")
+		token, err := jwt.Parse(raw, func(t *jwt.Token) (any, error) {
+			if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
+				return nil, jwt.ErrSignatureInvalid
+			}
+			return secret, nil
+		})
+		if err != nil || !token.Valid {
+			c.AbortWithStatusJSON(http.StatusUnauthorized,
+				gin.H{"error": "invalid token"})
+			return
+		}
+		claims := token.Claims.(jwt.MapClaims)
+		c.Set("profile_id", claims["sub"].(string))
+		c.Next()
+	}
+}

kontor-gin/internal/middleware/ratelimit.go

@@ -0,0 +1,17 @@
+package middleware
+
+import (
+	"github.com/gin-gonic/gin"
+	"golang.org/x/time/rate"
+)
+
+func RateLimit(rps int, burst int) gin.HandlerFunc {
+	limiter := rate.NewLimiter(rate.Limit(rps), burst)
+	return func(c *gin.Context) {
+		if !limiter.Allow() {
+			c.AbortWithStatusJSON(429, gin.H{"error": "too many requests"})
+			return
+		}
+		c.Next()
+	}
+}

kontor-gin/internal/middleware/request_id.go

@@ -0,0 +1,18 @@
+package middleware
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+)
+
+func RequestID() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		id := c.GetHeader("X-Request-ID")
+		if id == "" {
+			id = uuid.NewString()
+		}
+		c.Set("request_id", id)
+		c.Writer.Header().Set("X-Request-ID", id)
+		c.Next()
+	}
+}