heartbeat-monitor/node_modules/next/dist/esm/server/app-render/parse-and-validate-flight-router-state.js
Matt Bruce bed1169443 Initial commit: Heartbeat Monitor dashboard
- Full-featured monitoring dashboard for local web apps
- Real-time status tracking with uptime percentages
- Visual sparklines for status history
- Add/Edit/Delete apps dynamically
- Categories and color coding
- Auto-refresh every 30 seconds
- API endpoints for apps and status management
2026-02-18 11:16:01 -06:00

27 lines
1.1 KiB
JavaScript

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 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 {
const state = JSON.parse(decodeURIComponent(stateHeader));
assert(state, flightRouterStateSchema);
return state;
} catch {
throw new Error('The router state header was sent but could not be parsed.');
}
}
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