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37 lines
1.4 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "parseAndValidateFlightRouterState", {
enumerable: true,
get: function() {
return parseAndValidateFlightRouterState;
}
});
const _types = require("./types");
const _superstruct = require("next/dist/compiled/superstruct");
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));
(0, _superstruct.assert)(state, _types.flightRouterStateSchema);
return state;
} catch {
throw new Error("The router state header was sent but could not be parsed.");
}
}
//# sourceMappingURL=parse-and-validate-flight-router-state.js.map