Initial Commit

server/auth.go

@@ -0,0 +1,17 @@
+package server
+
+import (
+	"net/http"
+
+	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/auth"
+)
+
+func AuthMiddleware(handlerFunc http.HandlerFunc, authProvider auth.AuthProvider) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if authProvider.IsAllowed(r) {
+			handlerFunc.ServeHTTP(w, r)
+		} else {
+			w.WriteHeader(http.StatusUnauthorized)
+		}
+	}
+}