project setup with core files including configuration, package management, and basic structure. Added .gitignore, README, and various TypeScript types for CMS components. Implemented initial components and layouts for the application.

middlelayer/plugins/queryComplexity.ts

@@ -0,0 +1,67 @@
+import type { ApolloServerPlugin } from "@apollo/server";
+import { getComplexity, simpleEstimator } from "graphql-query-complexity";
+import { GraphQLError } from "graphql";
+
+interface QueryComplexityPluginOptions {
+  maxComplexity?: number;
+  defaultComplexity?: number;
+}
+
+/**
+ * Apollo Server Plugin für Query Complexity Limits
+ * Verhindert zu komplexe Queries, die das System überlasten könnten
+ */
+export const queryComplexityPlugin = (
+  options: QueryComplexityPluginOptions = {}
+): ApolloServerPlugin => {
+  const maxComplexity = options.maxComplexity ?? 1000;
+  const defaultComplexity = options.defaultComplexity ?? 1;
+
+  return {
+    async requestDidStart() {
+      return {
+        async didResolveOperation({ request, document, schema }) {
+          if (!schema) return;
+
+          try {
+            const complexity = getComplexity({
+              schema,
+              operationName: request.operationName || undefined,
+              query: document,
+              variables: request.variables || {},
+              estimators: [
+                // Basis-Komplexität für jeden Field
+                simpleEstimator({ defaultComplexity }),
+              ],
+            });
+
+            // Speichere Complexity im Request für Monitoring
+            (request as any).complexity = complexity;
+
+            if (complexity > maxComplexity) {
+              throw new GraphQLError(
+                `Query zu komplex (${complexity}). Maximum: ${maxComplexity}`,
+                {
+                  extensions: {
+                    code: "QUERY_TOO_COMPLEX",
+                    complexity,
+                    maxComplexity,
+                  },
+                }
+              );
+            }
+          } catch (error: any) {
+            // Wenn es ein Schema-Realm-Problem gibt, logge es aber blockiere nicht
+            if (error.message?.includes("another module or realm")) {
+              console.warn(
+                "[Query Complexity] Schema-Realm-Konflikt, Complexity-Check übersprungen"
+              );
+              return;
+            }
+            throw error;
+          }
+        },
+      };
+    },
+  };
+};