.

node_modules/next/dist/esm/server/app-render/parse-and-validate-flight-router-state.js

@@ -0,0 +1,39 @@
+import { flightRouterStateSchema } from './types';
+import { assert } from 'next/dist/compiled/superstruct';
+export function parseAndValidateFlightRouterState(stateHeader) {
+    if (typeof stateHeader === 'undefined') {
+        return undefined;
+    }
+    if (Array.isArray(stateHeader)) {
+        throw Object.defineProperty(new Error('Multiple router state headers were sent. This is not allowed.'), "__NEXT_ERROR_CODE", {
+            value: "E418",
+            enumerable: false,
+            configurable: true
+        });
+    }
+    // We limit the size of the router state header to ~40kb. This is to prevent
+    // a malicious user from sending a very large header and slowing down the
+    // resolving of the router state.
+    // This is around 2,000 nested or parallel route segment states:
+    // '{"children":["",{}]}'.length === 20.
+    if (stateHeader.length > 20 * 2000) {
+        throw Object.defineProperty(new Error('The router state header was too large.'), "__NEXT_ERROR_CODE", {
+            value: "E142",
+            enumerable: false,
+            configurable: true
+        });
+    }
+    try {
+        const state = JSON.parse(decodeURIComponent(stateHeader));
+        assert(state, flightRouterStateSchema);
+        return state;
+    } catch  {
+        throw Object.defineProperty(new Error('The router state header was sent but could not be parsed.'), "__NEXT_ERROR_CODE", {
+            value: "E10",
+            enumerable: false,
+            configurable: true
+        });
+    }
+}
+
+//# sourceMappingURL=parse-and-validate-flight-router-state.js.map