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

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
        });
    }
}

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