Moved v3 code from NginxProxyManager/nginx-proxy-manager-3 to NginxProxyManager/nginx-proxy-manager

backend/internal/api/middleware/expansion.go

@@ -0,0 +1,24 @@
+package middleware
+
+import (
+	"context"
+	"net/http"
+	"strings"
+
+	c "npm/internal/api/context"
+)
+
+// Expansion will determine whether the request should have objects expanded
+// with ?expand=1 or ?expand=true
+func Expansion(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		expandStr := r.URL.Query().Get("expand")
+		if expandStr != "" {
+			ctx := r.Context()
+			ctx = context.WithValue(ctx, c.ExpansionCtxKey, strings.Split(expandStr, ","))
+			next.ServeHTTP(w, r.WithContext(ctx))
+		} else {
+			next.ServeHTTP(w, r)
+		}
+	})
+}