584 lines
17 KiB
JavaScript
584 lines
17 KiB
JavaScript
const {MessageFlags} = require("@projectdysnomia/dysnomia").Constants;
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const events = require("../lib/events.js");
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const logger = require("../lib/logger.js");
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const {hasFlag} = require("../lib/guildSettings.js");
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const {parseHtmlEntities, getUploadLimit} = require("../lib/utils.js");
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const FRIENDLY_USERAGENT =
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"HiddenPhox/fedimbed (https://gitdab.com/Cynosphere/HiddenPhox)";
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const URLS_REGEX =
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/(?:\s|^)(\|\|\s*)?(https?:\/\/[^\s<]+[^<.,:;"'\]\s])(\s+\|\|)?/g;
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const SPOILER_REGEX = /^\|\|([\s\S]+?)\|\|/;
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const PATH_REGEX = {
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mastodon: /^\/@(.+?)\/(\d+)\/?/,
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mastodon2: /^\/(.+?)\/statuses\/\d+\/?/,
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pleroma:
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/^\/objects\/[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\/?/,
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pleroma2: /^\/notice\/[A-Za-z0-9]+\/?/,
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misskey: /^\/notes\/[a-z0-9]+\/?/,
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gotosocial: /^\/@(.+?)\/statuses\/[0-9A-Z]+\/?/,
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};
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const PLATFORM_COLORS = {
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mastodon: 0x2791da,
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pleroma: 0xfba457,
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akkoma: 0x593196,
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misskey: 0x99c203,
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calckey: 0x31748f,
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gotosocial: 0xff853e,
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};
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const domainCache = new Map();
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async function resolvePlatform(url) {
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const urlObj = new URL(url);
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if (domainCache.has(urlObj.hostname)) return domainCache.get(urlObj.hostname);
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const probe = await fetch(urlObj.origin + "/.well-known/nodeinfo", {
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headers: {"User-Agent": FRIENDLY_USERAGENT},
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}).then((res) => res.json());
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if (!probe?.links) {
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logger.error("fedimbed", `No nodeinfo for "${urlObj.hostname}"???`);
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domainCache.set(urlObj.hostname, null);
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return null;
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}
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const nodeinfo = await fetch(probe.links[probe.links.length - 1].href, {
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headers: {"User-Agent": FRIENDLY_USERAGENT},
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}).then((res) => res.json());
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if (!nodeinfo?.software?.name) {
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logger.error(
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"fedimbed",
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`Got nodeinfo for "${urlObj.hostname}", but missing software name.`
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);
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domainCache.set(urlObj.hostname, null);
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return null;
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}
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domainCache.set(urlObj.hostname, nodeinfo.software.name);
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return nodeinfo.software.name;
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}
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async function processUrl(msg, url, spoiler = false) {
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let urlObj = new URL(url);
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let platform = await resolvePlatform(url);
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let color = PLATFORM_COLORS[platform];
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let platformName = platform
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.replace("gotosocial", "GoToSocial")
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.replace(/^(.)/, (_, c) => c.toUpperCase());
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const images = [];
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const videos = [];
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const audios = [];
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let content, cw, author, timestamp;
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// Fetch post
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const rawPostData = await fetch(url, {
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headers: {
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"User-Agent": FRIENDLY_USERAGENT,
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Accept: "application/activity+json",
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},
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})
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.then((res) => res.text())
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.catch((err) => {
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logger.error("fedimbed", `Failed to fetch "${url}" as AS2: ${err}`);
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});
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let postData;
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if (rawPostData.startsWith("{")) {
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postData = JSON.parse(rawPostData);
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} else {
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logger.warn("fedimbed", `Got non-JSON for "${url}": ${rawPostData}`);
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}
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if (postData?.error) {
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logger.error("fedimbed", `Received error for "${url}": ${postData.error}`);
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}
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if (!postData) {
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// We failed to get post.
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// Assume it was due to AFM or forced HTTP signatures and use MastoAPI
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// Follow redirect from /object since we need the ID from /notice
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if (PATH_REGEX.pleroma.test(urlObj.pathname)) {
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url = await fetch(url, {
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method: "HEAD",
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headers: {
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"User-Agent": FRIENDLY_USERAGENT,
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},
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redirect: "manual",
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}).then((res) => res.headers.get("location"));
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if (url.startsWith("/")) {
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url = urlObj.origin + url;
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}
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urlObj = new URL(url);
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}
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let redirUrl;
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const options = {};
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const headers = {};
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if (PATH_REGEX.pleroma2.test(urlObj.pathname)) {
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redirUrl = url.replace("notice", "api/v1/statuses");
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} else if (PATH_REGEX.mastodon.test(urlObj.pathname)) {
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const postId = urlObj.pathname.match(PATH_REGEX.mastodon)?.[2];
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redirUrl = urlObj.origin + "/api/v1/statuses/" + postId;
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} else if (PATH_REGEX.mastodon2.test(urlObj.pathname)) {
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redirUrl = url.replace(/^\/(.+?)\/statuses/, "/api/v1/statuses");
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} else if (PATH_REGEX.misskey.test(urlObj.pathname)) {
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let noteId = url.split("/notes/")[1];
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if (noteId.indexOf("/") > -1) {
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noteId = noteId.split("/")[0];
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} else if (noteId.indexOf("?") > -1) {
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noteId = noteId.split("?")[0];
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} else if (noteId.indexOf("#") > -1) {
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noteId = noteId.split("#")[0];
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}
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logger.verbose("fedimbed", "Misskey post ID: " + noteId);
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redirUrl = urlObj.origin + "/api/notes/show/";
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options.method = "POST";
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options.body = JSON.stringify({noteId});
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headers["Content-Type"] = "application/json";
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} else {
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logger.error(
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"fedimbed",
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`Missing MastoAPI replacement for "${platform}"`
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);
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}
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if (redirUrl) {
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logger.verbose(
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"fedimbed",
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`Redirecting "${url}" to "${redirUrl}": ${JSON.stringify(
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options
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)}, ${JSON.stringify(headers)}`
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);
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const rawPostData2 = await fetch(
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redirUrl,
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Object.assign(options, {
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headers: Object.assign(headers, {
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"User-Agent": FRIENDLY_USERAGENT,
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}),
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})
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)
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.then((res) => res.text())
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.catch((err) => {
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logger.error(
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"fedimbed",
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`Failed to fetch "${url}" as MastoAPI: ${err}`
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);
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});
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let postData2;
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if (rawPostData2.startsWith("{")) {
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postData2 = JSON.parse(rawPostData2);
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} else {
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logger.warn(
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"fedimbed",
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`Got non-JSON for "${url}" as MastoAPI: ${rawPostData2}`
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);
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}
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if (!postData2) {
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logger.warn(
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"fedimbed",
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`Bailing trying to re-embed "${url}": Failed to get post from both AS2 and MastoAPI.`
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);
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} else if (postData2.error) {
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logger.error(
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"fedimbed",
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`Bailing trying to re-embed "${url}", MastoAPI gave us error: ${JSON.stringify(
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postData2.error
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)}`
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);
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} else {
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cw =
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postData2.spoiler_warning ?? postData2.spoiler_text ?? postData2.cw;
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content =
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postData2.akkoma?.source?.content ??
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postData2.pleroma?.content?.["text/plain"] ??
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postData2.text ??
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postData2.content;
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author = {
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name:
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postData2.account?.display_name ??
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postData2.account?.username ??
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postData2.user?.name ??
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postData2.user?.username,
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handle:
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postData2.account?.fqn ??
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`${postData2.account?.username ?? postData2.user?.username}@${
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urlObj.hostname
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}`,
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url:
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postData2.account?.url ??
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`${urlObj.origin}/@${
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postData2.account?.username ?? postData2.user?.username
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}`,
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avatar: postData2.account?.avatar ?? postData2.user?.avatarUrl,
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};
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timestamp = postData2.created_at ?? postData2.createdAt;
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const attachments = postData2.media_attachments ?? postData2.files;
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if (attachments) {
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for (const attachment of attachments) {
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const fileType =
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attachment.pleroma?.mime_type ?? attachment.type.indexOf("/") > -1
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? attachment.type
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: attachment.type +
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"/" +
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(url.match(/\.([a-z0-9]{3,4})$/)?.[0] ??
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attachment.type == "image"
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? "png"
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: attachment.type == "video"
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? "mp4"
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: "mpeg");
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if (attachment.type.startsWith("image")) {
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images.push({
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url: attachment.url,
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desc: attachment.description ?? attachment.comment,
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type: fileType,
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});
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} else if (attachment.type.startsWith("video")) {
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videos.push({
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url: attachment.url,
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desc: attachment.description ?? attachment.comment,
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type: fileType,
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});
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} else if (attachment.type.startsWith("audio")) {
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audios.push({
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url: attachment.url,
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desc: attachment.description ?? attachment.comment,
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type: fileType,
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});
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}
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}
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}
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}
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}
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} else {
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if (postData.id) {
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const realUrlObj = new URL(postData.id);
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if (realUrlObj.origin != urlObj.origin) {
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platform = await resolvePlatform(postData.id);
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color = PLATFORM_COLORS[platform];
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platformName = platform
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.replace("gotosocial", "GoToSocial")
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.replace(/^(.)/, (_, c) => c.toUpperCase());
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url = postData.id;
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}
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}
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content =
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postData._misskey_content ?? postData.source?.content ?? postData.content;
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cw = postData.summary;
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timestamp = postData.published;
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for (const attachment of postData.attachment) {
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if (attachment.mediaType.startsWith("video/")) {
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videos.push({
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url: attachment.url,
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desc: attachment.name,
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type: attachment.mediaType,
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});
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} else if (attachment.mediaType.startsWith("image/")) {
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images.push({
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url: attachment.url,
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desc: attachment.name,
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type: attachment.mediaType,
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});
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} else if (attachment.mediaType.startsWith("audio/")) {
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audios.push({
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url: attachment.url,
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desc: attachment.name,
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type: attachment.mediaType,
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});
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}
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}
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// Author data is not sent with the post with AS2
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const authorData = await fetch(postData.actor ?? postData.attributedTo, {
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headers: {
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"User-Agent": FRIENDLY_USERAGENT,
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Accept: "application/activity+json",
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},
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})
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.then((res) => res.json())
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.catch((err) => {
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logger.error("fedimbed", `Failed to get author for "${url}": ${err}`);
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});
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if (authorData) {
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const authorUrlObj = new URL(authorData.url);
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author = {
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name: authorData.name,
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handle: `${authorData.preferredUsername}@${authorUrlObj.hostname}`,
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url: authorData.url,
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avatar: authorData.icon.url,
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};
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}
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}
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// We could just continue without author but it'd look ugly and be confusing.
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if (!author) {
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logger.warn(
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"fedimbed",
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`Bailing trying to re-embed "${url}": Failed to get author.`
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);
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return;
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}
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// Start constructing embed
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content = content ?? "";
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cw = cw ?? "";
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// TODO: convert certain HTML tags back to markdown
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content = content.replace(/<\/?\s*br\s*\/?>/g, "\n");
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content = content.replace(/<\/p><p>/g, "\n\n");
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content = content.replace(/(<([^>]+)>)/gi, "");
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content = parseHtmlEntities(content);
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cw = cw.replace(/(<([^>]+)>)/gi, "");
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cw = parseHtmlEntities(cw);
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let desc = "";
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let MAX_LENGTH = 3999;
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if (
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cw != "" &&
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images.length == 0 &&
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videos.length == 0 &&
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audios.length == 0
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) {
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desc += "\u26a0 " + cw + "\n\n||" + content + "||";
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MAX_LENGTH -= 8 - cw.length;
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} else {
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desc = content;
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}
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if (desc.length > MAX_LENGTH) {
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if (desc.endsWith("||")) {
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desc = desc.substring(0, MAX_LENGTH - 2);
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desc += "\u2026||";
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} else {
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desc = desc.substring(0, MAX_LENGTH) + "\u2026";
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}
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}
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const baseEmbed = {
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color,
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url,
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timestamp,
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description: desc,
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title: `${author.name} (${author.handle})`,
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footer: {
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text: platformName,
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},
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thumbnail: {
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url: author.avatar,
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},
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fields: [],
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};
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if (images.length > 0) {
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if (images.length > 1) {
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baseEmbed.fields.push({
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name: "Images",
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value: images
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.map((attachment, index) => `[Image ${index + 1}](${attachment.url})`)
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.join(" | "),
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inline: true,
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});
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} else {
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baseEmbed.fields.push({
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name: "Image",
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value: `[Click for image](${images[0].url})`,
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inline: true,
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});
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}
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}
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if (videos.length > 0) {
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if (videos.length > 1) {
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baseEmbed.fields.push({
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name: "Videos",
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value: videos
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.map((attachment, index) => `[Video ${index + 1}](${attachment.url})`)
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.join(" | "),
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inline: true,
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});
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} else {
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baseEmbed.fields.push({
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name: "Video",
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value: `[Click for video](${videos[0].url})`,
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inline: true,
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});
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}
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}
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if (audios.length > 0) {
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if (audios.length > 1) {
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baseEmbed.fields.push({
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name: "Audios",
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value: audios
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.map((attachment, index) => `[Audio ${index + 1}](${attachment.url})`)
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.join(" | "),
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inline: true,
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});
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} else {
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baseEmbed.fields.push({
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name: "Audio",
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value: `[Click for audio](${audios[0].url})`,
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inline: true,
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});
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}
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}
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const embeds = [];
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if (images.length > 0) {
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for (const attachment of images) {
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const embed = Object.assign({}, baseEmbed);
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embed.image = {
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url: attachment.url,
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};
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embeds.push(embed);
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}
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} else {
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embeds.push(baseEmbed);
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}
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|
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const files = [];
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if (videos.length > 0) {
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for (const attachment of videos) {
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const size = await fetch(attachment.url, {
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method: "HEAD",
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headers: {
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"User-Agent": FRIENDLY_USERAGENT,
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},
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}).then((res) => Number(res.headers.get("Content-Length")));
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|
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if (size <= getUploadLimit(msg.channel.guild)) {
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|
const file = await fetch(attachment.url, {
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headers: {
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"User-Agent": FRIENDLY_USERAGENT,
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},
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})
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.then((res) => res.arrayBuffer())
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.then((buf) => Buffer.from(buf));
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|
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files.push({
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name:
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(cw != "" || spoiler ? "SPOILER_" : "") +
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(attachment.type.indexOf("/") > -1
|
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? attachment.type.replace("/", ".")
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|
: attachment.type +
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|
"." +
|
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(url.match(/\.([a-z0-9]{3,4})$/)?.[0] ?? "mp4")),
|
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contents: file,
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|
});
|
|
}
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|
}
|
|
}
|
|
if (audios.length > 0) {
|
|
for (const attachment of audios) {
|
|
const size = await fetch(attachment.url, {
|
|
method: "HEAD",
|
|
headers: {
|
|
"User-Agent": FRIENDLY_USERAGENT,
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},
|
|
}).then((res) => Number(res.headers.get("Content-Length")));
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|
|
if (size <= getUploadLimit(msg.channel.guild)) {
|
|
const file = await fetch(attachment.url, {
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headers: {
|
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"User-Agent": FRIENDLY_USERAGENT,
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},
|
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})
|
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.then((res) => res.arrayBuffer())
|
|
.then((buf) => Buffer.from(buf));
|
|
|
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files.push({
|
|
name:
|
|
(cw != "" || spoiler ? "SPOILER_" : "") +
|
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(attachment.type.indexOf("/") > -1
|
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? attachment.type
|
|
.replace("/", ".")
|
|
.replace("mpeg", "mp3")
|
|
.replace("vnd.wave", "wav")
|
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.replace("x-wav", "wav")
|
|
: attachment.type +
|
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"." +
|
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(url.match(/\.([a-z0-9]{3,4})$/)?.[0] ?? "mp3")),
|
|
contents: file,
|
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});
|
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}
|
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}
|
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}
|
|
|
|
let sendWait = false;
|
|
if (files.length > 0) {
|
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sendWait = true;
|
|
await msg.addReaction("\uD83D\uDCE4");
|
|
}
|
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|
|
await msg.channel
|
|
.createMessage({
|
|
content:
|
|
cw != "" &&
|
|
(images.length > 0 || videos.length > 0 || audios.length > 0)
|
|
? `:warning: ${cw} || ${url} ||`
|
|
: spoiler
|
|
? `|| ${url} ||`
|
|
: "",
|
|
embeds,
|
|
files,
|
|
allowedMentions: {
|
|
repliedUser: false,
|
|
},
|
|
messageReference: {
|
|
messageID: msg.id,
|
|
},
|
|
})
|
|
.then(() => {
|
|
if (sendWait) {
|
|
msg.removeReaction("\uD83D\uDCE4");
|
|
}
|
|
|
|
if ((msg.flags & MessageFlags.SUPPRESS_EMBEDS) === 0) {
|
|
msg.edit({flags: MessageFlags.SUPPRESS_EMBEDS}).catch(() => {});
|
|
}
|
|
});
|
|
}
|
|
|
|
events.add("messageCreate", "fedimbed", async function (msg) {
|
|
if (msg.author.id == hf.bot.user.id) return;
|
|
if (!msg.guildID) return;
|
|
if (!(await hasFlag(msg.guildID, "fedimbed"))) return;
|
|
if (!msg.content || msg.content == "") return;
|
|
|
|
if (URLS_REGEX.test(msg.content)) {
|
|
const urls = msg.content.match(URLS_REGEX);
|
|
for (let url of urls) {
|
|
const hasSpoiler = SPOILER_REGEX.test(url);
|
|
url = url
|
|
.replace(/\|/g, "")
|
|
.trim()
|
|
.replace("@\u200b", "@")
|
|
.replace("@%E2%80%8B", "@");
|
|
for (const service of Object.keys(PATH_REGEX)) {
|
|
const regex = PATH_REGEX[service];
|
|
const urlObj = new URL(url);
|
|
if (regex.test(urlObj.pathname)) {
|
|
logger.verbose(
|
|
"fedimbed",
|
|
`Hit "${service}" for "${url}", processing now.`
|
|
);
|
|
await processUrl(msg, url, hasSpoiler).catch((err) => {
|
|
logger.error("fedimbed", `Error processing "${url}": ${err}`);
|
|
});
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
});
|