Nulo/transicion-desordenada-diablo
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arreglar chequeo redireccion con undici.request

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Cat /dev/Nulo 2023-11-27 23:19:09 -03:00
parent b717af8ce9
commit a955cb2c3a
1 changed files with 12 additions and 8 deletions
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20
download_json.js
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@ -7,10 +7,11 @@ import { pipeline } from "node:stream/promises";
// FYI: al menos los siguientes dominios no tienen la cadena completa de certificados en HTTPS. tenemos que usar un hack (node_extra_ca_certs_mozilla_bundle) para conectarnos a estos sitios. (se puede ver con ssllabs.com) ojalá lxs administradorxs de estos servidores lo arreglen.
// www.enargas.gov.ar, transparencia.enargas.gov.ar, www.energia.gob.ar, www.economia.gob.ar, datos.yvera.gob.ar
// TODO: revisar por qué falla http://www.ign.gob.ar/descargas/geodatos/CSV/ign_municipio.csv
setGlobalDispatcher(
new Agent({
pipelining: 0,
maxRedirections: 20,
})
);
@ -23,6 +24,7 @@ class StatusCodeError extends Error {
this.code = code;
}
}
class TooManyRedirectsError extends Error {}
let jsonUrlString = process.argv[2];
if (!jsonUrlString) {
@ -119,7 +121,7 @@ async function downloadDistWithRetries(job, tries = 0) {
// si no fue un error de http, reintentar hasta 5 veces con 5 segundos de por medio
else if (
!(error instanceof StatusCodeError) &&
!errorIsInfiniteRedirect(error) &&
!(error instanceof TooManyRedirectsError) &&
tries < 5
) {
await wait(5000);
@ -134,7 +136,11 @@ async function downloadDistWithRetries(job, tries = 0) {
async function downloadDist({ dist, dataset }) {
const url = new URL(dist.downloadURL);
const res = await request(url.toString());
const res = await request(url.toString(), {
maxRedirections: 20,
});
if (res.statusCode >= 300 && res.statusCode <= 399)
throw new TooManyRedirectsError();
if (res.statusCode < 200 || res.statusCode > 299) {
throw new StatusCodeError(res.statusCode);
}
@ -203,11 +209,9 @@ function wait(ms) {
function encodeError(error) {
if (error instanceof StatusCodeError)
return { kind: "http_error", status_code: error.code };
else if (errorIsInfiniteRedirect(error)) return { kind: "infinite_redirect" };
else if (error instanceof TooManyRedirectsError)
return { kind: "infinite_redirect" };
else {
return { kind: "generic_error", error: error.message };
return { kind: "generic_error", error: error.code || error.message };
}
}
function errorIsInfiniteRedirect(error) {
return error?.message === "redirect count exceeded";
}