mirror of
https://github.com/PucelaBits/websegura.git
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81 lines
2.3 KiB
JavaScript
81 lines
2.3 KiB
JavaScript
/**
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* Fichero con utilidades comunes al crawling, para procesar los ficheros de entrada
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* gloal, de comunidades y de provincias.
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*/
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const fs = require("fs");
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const glob = require("fast-glob");
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const MAX_DAYS_TO_REFRESH = process.env.CRAWLER_MAX_DAYS_TO_REFRESH || 2; // can be increased when we have many sites to scan
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const MAX_TIME_TO_REFRESH_MILLIS = MAX_DAYS_TO_REFRESH * 24 * 60 * 60 * 1000;
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const MAX_RESULTS = process.env.CRAWLER_MAX_RESULTS || 200;
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/**
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* Obtiene las rutas a los ficheros global, de comunidades y provincias.
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*/
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function getAllFiles() {
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const files = glob.sync("_data/{comunidades,provincias}/*.json");
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files.push("_data/general.json");
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return files;
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}
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function pathToObject(path) {
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return JSON.parse(fs.readFileSync(path));
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}
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/**
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* Obtiene todas las urls especificadas en los ficheros global, de comunidades y provincias.
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*/
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function getAllUrls() {
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const files = getAllFiles();
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return files.flatMap((file) =>
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pathToObject(file).webs.map((x) => beautify(x.url))
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);
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}
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/**
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* Devuelve la URL de las webs que no se han refrescado
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* en los últimos MAX_TIME_TO_REFRESH_MILLIS.
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* Devuelve MAX_RESULTS como máximo, para evitar saturar el API de Mozilla.
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*
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* For the sake of simplicity, this function is sync for now
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*/
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async function parse(limit = MAX_RESULTS) {
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// XXX applying the limit during the filtering phase would
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// be more efficient, but js sucks sometimes
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return getAllUrls().filter(outdated).slice(0, limit);
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}
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// Mozilla espera un hostname (sin / final y sin indicar protocolo "http[s]://")
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function beautify(url) {
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url = url.replace("http://", "");
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url = url.replace("https://", "");
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return new URL(`https://${url}`).hostname;
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}
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function outdated(site) {
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const fileName = site.replace(/\./g, "!") + ".json";
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const path = `_data/results/${fileName}`;
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try {
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const siteInfo = JSON.parse(fs.readFileSync(path));
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const recent =
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new Date(siteInfo.start_time).valueOf() >
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Date.now() - MAX_TIME_TO_REFRESH_MILLIS;
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if (siteInfo.state === "FINISHED" && recent) {
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return false;
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}
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} catch (err) {
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// file not found (err.code === ENOENT) or an unexpected error, refresh the analysis
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}
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return true;
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}
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module.exports = {
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parse: parse,
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beautify: beautify,
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getAllUrls: getAllUrls,
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getAllFiles: getAllFiles,
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pathToObject: pathToObject,
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};
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