main repo

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

@@ -0,0 +1,24 @@
+import { flightRouterStateSchema } from "./types";
+export function parseAndValidateFlightRouterState(stateHeader) {
+    if (typeof stateHeader === "undefined") {
+        return undefined;
+    }
+    if (Array.isArray(stateHeader)) {
+        throw new Error("Multiple router state headers were sent. This is not allowed.");
+    }
+    // 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 new Error("The router state header was too large.");
+    }
+    try {
+        return flightRouterStateSchema.parse(JSON.parse(decodeURIComponent(stateHeader)));
+    } catch  {
+        throw new Error("The router state header was sent but could not be parsed.");
+    }
+}
+
+//# sourceMappingURL=parse-and-validate-flight-router-state.js.map