27 lines
1.0 KiB
TypeScript
27 lines
1.0 KiB
TypeScript
import type { Response } from "undici";
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import { readBoundedJsonResponseAsync as readBoundedJsonResponse } from "@homarr/common/server";
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export const DEFAULT_TIMETABLE_BASE_URL = "https://search.ch";
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export const MAX_TIMETABLE_RESPONSE_BYTES = 512 * 1024;
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export const normalizeTimetableBaseUrl = (baseUrl: string) => {
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if (baseUrl.length > 2_048) throw new Error("Timetable base URL is too long");
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const url = new URL(baseUrl);
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if (url.protocol !== "http:" && url.protocol !== "https:") {
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throw new Error("Timetable base URL must use HTTP or HTTPS");
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}
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if (url.username || url.password) throw new Error("Timetable base URL must not contain credentials");
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if (url.search || url.hash) throw new Error("Timetable base URL must not contain a query or fragment");
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return url.toString().replace(/\/$/, "");
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};
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export async function readBoundedTimetableJsonAsync(
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response: Response,
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maxBytes = MAX_TIMETABLE_RESPONSE_BYTES,
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): Promise<unknown> {
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return await readBoundedJsonResponse(response, maxBytes, "Timetable response");
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}
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