20d1e1b212
Displays a small thumbnail above each toggle that comes from either og:image or twitter:image meta tags.
95 lines
1.9 KiB
JavaScript
95 lines
1.9 KiB
JavaScript
var _ = require("lodash");
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var cheerio = require("cheerio");
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var Msg = require("../../models/msg");
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var request = require("superagent");
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var Helper = require("../../helper");
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module.exports = function(irc, network) {
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var client = this;
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irc.on("message", function(data) {
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var config = Helper.getConfig();
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if (!config.prefetch) {
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return;
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}
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var links = [];
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var split = data.message.split(" ");
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_.each(split, function(w) {
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var match = w.indexOf("http://") === 0 || w.indexOf("https://") === 0;
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if (match) {
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links.push(w);
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}
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});
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if (links.length === 0) {
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return;
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}
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var self = data.to.toLowerCase() == irc.me.toLowerCase();
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var chan = _.findWhere(network.channels, {name: self ? data.from : data.to});
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if (typeof chan === "undefined") {
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return;
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}
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var msg = new Msg({
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type: Msg.Type.TOGGLE,
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time: ""
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});
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chan.messages.push(msg);
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client.emit("msg", {
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chan: chan.id,
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msg: msg
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});
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_.each(links, function(url) {
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fetch(url, function(res) {
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parse(msg, url, res, client);
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});
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});
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});
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};
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function parse(msg, url, res, client) {
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var toggle = msg.toggle = {
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id: msg.id,
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type: "",
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head: "",
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body: "",
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thumb: "",
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link: url
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};
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switch (res.type) {
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case "text/html":
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var $ = cheerio.load(res.res.text);
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toggle.type = "link";
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toggle.head = $("title").text();
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toggle.body = $('meta[name=description]').attr('content') ||
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$('meta[property="og:description"]').attr('content') || "";
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toggle.thumb = $('meta[property="og:image"]').attr('content') ||
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$('meta[name="twitter:image:src"]').attr('content') || "";
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break;
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case "image/png":
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case "image/gif":
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case "image/jpg":
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case "image/jpeg":
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toggle.type = "image";
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break;
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default:
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return;
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}
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client.emit("toggle", toggle);
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}
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function fetch(url, cb) {
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var req = request.get(url);
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req.end(function(e, res) {
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if (res) {
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cb(res);
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}
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});
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}
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