volver a descargar separado por host

This commit is contained in:
Cat /dev/Nulo 2023-11-28 19:19:35 -03:00
parent 4a3a117e0f
commit 704634c979
4 changed files with 102 additions and 69 deletions

View file

@ -1,6 +1,7 @@
FROM docker.io/alpine:3.18 as build
RUN apk add --no-cache npm esbuild
COPY package.json download_json.js /tmp/build
RUN npm install -g esbuild
COPY package.json download_json.js /tmp/build/
RUN cd /tmp/build && \
npm install && \
esbuild --bundle --format=cjs --platform=node --outfile=build.js download_json.js
@ -11,4 +12,25 @@ COPY pki/ca_intermediate_root_bundle.pem /usr/lib/ca_intermediate_root_bundle.pe
COPY --from=build /tmp/build/build.js /usr/local/bin/download_json.js
ENV NODE_EXTRA_CA_CERTS=/usr/lib/ca_intermediate_root_bundle.pem
WORKDIR /data
CMD ["/sbin/tini", "node", "/usr/local/bin/download_json.js", "https://datos.gob.ar/data.json"]
CMD ["/sbin/tini", "node", "/usr/local/bin/download_json.js", "https://datos.gob.ar/data.json"]
# https://datos.gob.ar/data.json
# http://datos.energia.gob.ar/data.json
# https://datos.magyp.gob.ar/data.json
# https://datos.acumar.gov.ar/data.json
# https://datasets.datos.mincyt.gob.ar/data.json
# https://datos.arsat.com.ar/data.json
# https://datos.cultura.gob.ar/data.json
# https://datos.mininterior.gob.ar/data.json
# https://datos.produccion.gob.ar/data.json
# https://datos.salud.gob.ar/data.json
# https://datos.transporte.gob.ar/data.json
# https://ckan.ciudaddemendoza.gov.ar/data.json
# https://datos.santafe.gob.ar/data.json
# https://datosabiertos.chaco.gob.ar/data.json
# https://datosabiertos.gualeguaychu.gov.ar/data.json
# https://datosabiertos.mercedes.gob.ar/data.json
# http://luj-bue-datos.paisdigital.innovacion.gob.ar/data.json
#https://datos.mindef.gov.ar
#https://datosabiertos.desarrollosocial.gob.ar

View file

@ -2,6 +2,7 @@
import { mkdir, open, writeFile } from "node:fs/promises";
import { Agent, fetch, request, setGlobalDispatcher } from "undici";
import { join, normalize } from "node:path";
import pLimit from "p-limit";
// 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
@ -12,6 +13,11 @@ setGlobalDispatcher(
})
);
/** key es host
* @type {Map<string, import("p-limit").LimitFunction>} */
const limiters = new Map();
const nThreads = process.env.N_THREADS ? parseInt(process.env.N_THREADS) : 16;
class StatusCodeError extends Error {
/**
* @param {number} code
@ -63,68 +69,70 @@ async function downloadFromData(jsonUrlString) {
shuffleArray(jobs);
const nThreads = process.env.N_THREADS ? parseInt(process.env.N_THREADS) : 64;
const greens = Array(nThreads)
.fill(0)
.map(() =>
(async () => {
let job;
while ((job = jobs.pop())) {
if (job.waitUntil) await waitUntil(job.waitUntil);
try {
await downloadDist(job);
} catch (error) {
// algunos servidores usan 403 como coso para decir "calmate"
// intentar hasta 15 veces con 15 segundos de por medio
if (
error instanceof StatusCodeError &&
error.code === 403 &&
job.url.host === "minsegar-my.sharepoint.com" &&
job.attempts < 15
) {
jobs.unshift({
...job,
attempts: job.attempts + 1,
waitUntil: nowPlusNSeconds(15),
});
continue;
}
// si no fue un error de http, reintentar hasta 5 veces con 5 segundos de por medio
else if (
!(error instanceof StatusCodeError) &&
!(error instanceof TooManyRedirectsError) &&
job.attempts < 5
) {
jobs.unshift({
...job,
attempts: job.attempts + 1,
waitUntil: nowPlusNSeconds(5),
});
continue;
} else {
await errorFile.write(
JSON.stringify({
url: job.url.toString(),
...encodeError(error),
}) + "\n"
);
nErrors++;
}
}
nFinished++;
}
})()
);
process.stderr.write(`greens: ${greens.length}\n`);
const promises = jobs.map((job) => {
let limit = limiters.get(job.url.host);
if (!limit) {
limit = pLimit(nThreads);
limiters.set(job.url.host, limit);
}
return limit(async () => {
try {
await downloadDistWithRetries(job);
} catch (error) {
await errorFile.write(
JSON.stringify({
url: job.url.toString(),
...encodeError(error),
}) + "\n"
);
nErrors++;
} finally {
nFinished++;
}
});
});
process.stderr.write(`info: 0/${totalJobs} done\n`);
const interval = setInterval(() => {
process.stderr.write(`info: ${nFinished}/${totalJobs} done\n`);
}, 30000);
await Promise.all(greens);
await Promise.all(promises);
clearInterval(interval);
if (nErrors > 0) console.error(`Finished with ${nErrors} errors`);
}
/**
* @argument {DownloadJob} job
* @argument {number} attempts
*/
async function downloadDistWithRetries(job, attempts = 0) {
const { url } = job;
try {
await downloadDist(job);
} catch (error) {
// algunos servidores usan 403 como coso para decir "calmate"
// intentar hasta 15 veces con 15 segundos de por medio
if (
error instanceof StatusCodeError &&
error.code === 403 &&
url.host === "minsegar-my.sharepoint.com" &&
attempts < 15
) {
await wait(15000);
return await downloadDistWithRetries(job, attempts + 1);
}
// si no fue un error de http, reintentar hasta 5 veces con 5 segundos de por medio
else if (
!(error instanceof StatusCodeError) &&
!(error instanceof TooManyRedirectsError) &&
attempts < 5
) {
await wait(5000);
return await downloadDistWithRetries(job, attempts + 1);
} else throw error;
}
}
/**
* @argument {DownloadJob} job
*/
@ -210,19 +218,6 @@ function hasDuplicates(array) {
function wait(ms) {
return new Promise((resolve) => setTimeout(resolve, ms));
}
/** @argument {Date} date */
function waitUntil(date) {
return wait(Math.max(+new Date() - +date, 0));
}
/**
* genera una Date de ahora+n segundos
* @param {number} seconds
*/
function nowPlusNSeconds(seconds) {
let d = new Date();
d.setSeconds(d.getSeconds() + seconds);
return d;
}
function encodeError(error) {
if (error instanceof StatusCodeError)

View file

@ -11,6 +11,7 @@
"author": "",
"license": "ISC",
"dependencies": {
"p-limit": "^5.0.0",
"undici": "^5.28.0"
},
"devDependencies": {

View file

@ -5,6 +5,9 @@ settings:
excludeLinksFromLockfile: false
dependencies:
p-limit:
specifier: ^5.0.0
version: 5.0.0
undici:
specifier: ^5.28.0
version: 5.28.0
@ -27,6 +30,13 @@ packages:
undici-types: 5.26.5
dev: true
/p-limit@5.0.0:
resolution: {integrity: sha512-/Eaoq+QyLSiXQ4lyYV23f14mZRQcXnxfHrN0vCai+ak9G0pp9iEQukIIZq5NccEvwRB8PUnZT0KsOoDCINS1qQ==}
engines: {node: '>=18'}
dependencies:
yocto-queue: 1.0.0
dev: false
/undici-types@5.26.5:
resolution: {integrity: sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==}
dev: true
@ -37,3 +47,8 @@ packages:
dependencies:
'@fastify/busboy': 2.1.0
dev: false
/yocto-queue@1.0.0:
resolution: {integrity: sha512-9bnSc/HEW2uRy67wc+T8UwauLuPJVn28jb+GtJY16iiKWyvmYJRXVT4UamsAEGQfPohgr2q4Tq0sQbQlxTfi1g==}
engines: {node: '>=12.20'}
dev: false