gistfile1.js

Meteor.methods({
		'findUrls': function getGists(url) {
			var cheerio = Meteor.require('cheerio');
			var urlResponse;
			try{
				urlResponse = Meteor.http.get(url);
				if(urlResponse.statusCode !== 200){
					return {images:new Array()};
				}
			}
			catch(err) {
				return {images:new Array()};
			}
			
			var images = Async.runSync(function(done) {
				var findedImages = new Array();
				$ = cheerio.load(urlResponse.content);
				
				var meta = $('meta');
				var keys = Object.keys(meta);
			
				keys.forEach(function(key){
					if (  meta[key].attribs && meta[key].attribs.property && meta[key].attribs.property === 'og:image') {
						var src = meta[key].attribs.content;
						console.log(src);
						var fullUrl = '';
						if(src.indexOf('http') != -1){
							fullUrl = src;
						}
						else{
							fullUrl = url + src;
						}	
						findedImages.push(fullUrl);
					}
				});
				done(null, findedImages);
			});

			return {images:images.result};
		}
	});