193 lines
7.6 KiB
JavaScript
193 lines
7.6 KiB
JavaScript
import { URL } from "node:url";
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import { JSDOM } from "jsdom";
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import fetch from "node-fetch";
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import tinycolor from "tinycolor2";
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import { getJson, getHtml, getAgentByUrl } from "../misc/fetch.js";
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import { Instances } from "../models/index.js";
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import { getFetchInstanceMetadataLock } from "../misc/app-lock.js";
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import Logger from "./logger.js";
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const logger = new Logger("metadata", "cyan");
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export async function fetchInstanceMetadata(instance, force = false) {
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const unlock = await getFetchInstanceMetadataLock(instance.host);
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if (!force) {
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const _instance = await Instances.findOneBy({
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host: instance.host
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});
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const now = Date.now();
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if (_instance?.infoUpdatedAt && now - _instance.infoUpdatedAt.getTime() < 1000 * 60 * 60 * 24) {
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unlock();
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return;
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}
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}
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logger.info(`Fetching metadata of ${instance.host} ...`);
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try {
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const [info, dom, manifest] = await Promise.all([
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fetchNodeinfo(instance).catch(()=>null),
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fetchDom(instance).catch(()=>null),
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fetchManifest(instance).catch(()=>null)
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]);
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const [favicon, icon, themeColor, name, description] = await Promise.all([
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fetchFaviconUrl(instance, dom).catch(()=>null),
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fetchIconUrl(instance, dom, manifest).catch(()=>null),
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getThemeColor(info, dom, manifest).catch(()=>null),
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getSiteName(info, dom, manifest).catch(()=>null),
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getDescription(info, dom, manifest).catch(()=>null)
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]);
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logger.succ(`Successfuly fetched metadata of ${instance.host}`);
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const updates = {
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infoUpdatedAt: new Date()
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};
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if (info) {
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updates.softwareName = info.software?.name.toLowerCase();
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updates.softwareVersion = info.software?.version;
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updates.openRegistrations = info.openRegistrations;
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updates.maintainerName = info.metadata ? info.metadata.maintainer ? info.metadata.maintainer.name || null : null : null;
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updates.maintainerEmail = info.metadata ? info.metadata.maintainer ? info.metadata.maintainer.email || null : null : null;
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}
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if (name) updates.name = name;
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if (description) updates.description = description;
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if (icon || favicon) updates.iconUrl = icon || favicon;
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if (favicon) updates.faviconUrl = favicon;
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if (themeColor) updates.themeColor = themeColor;
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await Instances.update(instance.id, updates);
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logger.succ(`Successfuly updated metadata of ${instance.host}`);
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} catch (e) {
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logger.error(`Failed to update metadata of ${instance.host}: ${e}`);
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} finally{
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unlock();
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}
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}
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async function fetchNodeinfo(instance) {
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logger.info(`Fetching nodeinfo of ${instance.host} ...`);
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try {
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const wellknown = await getJson(`https://${instance.host}/.well-known/nodeinfo`).catch((e)=>{
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if (e.statusCode === 404) {
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throw new Error("No nodeinfo provided");
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} else {
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throw new Error(e.statusCode || e.message);
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}
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});
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if (wellknown.links == null || !Array.isArray(wellknown.links)) {
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throw new Error("No wellknown links");
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}
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const links = wellknown.links;
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const lnik1_0 = links.find((link)=>link.rel === "http://nodeinfo.diaspora.software/ns/schema/1.0");
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const lnik2_0 = links.find((link)=>link.rel === "http://nodeinfo.diaspora.software/ns/schema/2.0");
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const lnik2_1 = links.find((link)=>link.rel === "http://nodeinfo.diaspora.software/ns/schema/2.1");
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const link = lnik2_1 || lnik2_0 || lnik1_0;
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if (link == null) {
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throw new Error("No nodeinfo link provided");
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}
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const info = await getJson(link.href).catch((e)=>{
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throw new Error(e.statusCode || e.message);
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});
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logger.succ(`Successfuly fetched nodeinfo of ${instance.host}`);
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return info;
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} catch (e) {
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logger.error(`Failed to fetch nodeinfo of ${instance.host}: ${e.message}`);
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throw e;
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}
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}
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async function fetchDom(instance) {
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logger.info(`Fetching HTML of ${instance.host} ...`);
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const url = `https://${instance.host}`;
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const html = await getHtml(url);
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const { window } = new JSDOM(html);
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const doc = window.document;
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return doc;
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}
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async function fetchManifest(instance) {
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const url = `https://${instance.host}`;
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const manifestUrl = `${url}/manifest.json`;
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const manifest = await getJson(manifestUrl);
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return manifest;
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}
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async function fetchFaviconUrl(instance, doc) {
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const url = `https://${instance.host}`;
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if (doc) {
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// https://github.com/misskey-dev/misskey/pull/8220#issuecomment-1025104043
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const href = Array.from(doc.getElementsByTagName("link")).reverse().find((link)=>link.relList.contains("icon"))?.href;
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if (href) {
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return new URL(href, url).href;
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}
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}
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const faviconUrl = `${url}/favicon.ico`;
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const favicon = await fetch(faviconUrl, {
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// TODO
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//timeout: 10000,
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agent: getAgentByUrl,
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size: 1024 * 1024
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});
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if (favicon.ok) {
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return faviconUrl;
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}
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return null;
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}
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async function fetchIconUrl(instance, doc, manifest) {
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if (manifest?.icons && manifest.icons.length > 0 && manifest.icons[0].src) {
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const url = `https://${instance.host}`;
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return new URL(manifest.icons[0].src, url).href;
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}
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if (doc) {
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const url = `https://${instance.host}`;
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// https://github.com/misskey-dev/misskey/pull/8220#issuecomment-1025104043
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const links = Array.from(doc.getElementsByTagName("link")).reverse();
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// https://github.com/misskey-dev/misskey/pull/8220/files/0ec4eba22a914e31b86874f12448f88b3e58dd5a#r796487559
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const href = [
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links.find((link)=>link.relList.contains("apple-touch-icon-precomposed"))?.href,
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links.find((link)=>link.relList.contains("apple-touch-icon"))?.href,
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links.find((link)=>link.relList.contains("icon"))?.href
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].find((href)=>href);
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if (href) {
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return new URL(href, url).href;
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}
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}
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return null;
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}
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async function getThemeColor(info, doc, manifest) {
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const themeColor = info?.metadata?.themeColor || doc?.querySelector('meta[name="theme-color"]')?.getAttribute("content") || manifest?.theme_color;
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if (themeColor) {
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const color = new tinycolor(themeColor);
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if (color.isValid()) return color.toHexString();
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}
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return null;
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}
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async function getSiteName(info, doc, manifest) {
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if (info?.metadata) {
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if (info.metadata.nodeName || info.metadata.name) {
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return info.metadata.nodeName || info.metadata.name;
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}
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}
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if (doc) {
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const og = doc.querySelector('meta[property="og:title"]')?.getAttribute("content");
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if (og) {
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return og;
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}
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}
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if (manifest) {
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return manifest.name || manifest.short_name;
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}
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return null;
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}
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async function getDescription(info, doc, manifest) {
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if (info?.metadata) {
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if (info.metadata.nodeDescription || info.metadata.description) {
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return info.metadata.nodeDescription || info.metadata.description;
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}
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}
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if (doc) {
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const meta = doc.querySelector('meta[name="description"]')?.getAttribute("content");
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if (meta) {
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return meta;
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}
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const og = doc.querySelector('meta[property="og:description"]')?.getAttribute("content");
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if (og) {
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return og;
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}
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}
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if (manifest) {
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return manifest.name || manifest.short_name;
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}
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return null;
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}
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