391 lines
13 KiB
JavaScript
391 lines
13 KiB
JavaScript
/*
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The MIT License (MIT)
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Copyright (c) 2013 Calvin Montgomery
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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var http = require("http");
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var https = require("https");
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var Logger = require("./logger.js");
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var Media = require("./media.js").Media;
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// Helper function for making an HTTP request and getting the result
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// as JSON
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function getJSON(options, callback) {
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var req = http.request(options, function(res) {
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var buffer = "";
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res.setEncoding("utf8");
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res.on("data", function (chunk) {
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buffer += chunk;
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});
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res.on("end", function() {
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try {
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var data = JSON.parse(buffer);
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}
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catch(e) {
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Logger.errlog.log("JSON fail: " + options.path);
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var m = buffer.match(/<internalReason>([^<]+)<\/internalReason>/);
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if(m) {
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callback(m[1], res.statusCode, null);
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}
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else {
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callback(true, res.statusCode, null);
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}
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return;
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}
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callback(false, res.statusCode, data);
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});
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});
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req.end();
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};
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// Dailymotion uses HTTPS for anonymous requests... [](/picard)
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function getJSONHTTPS(options, callback) {
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var req = https.request(options, function(res) {
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var buffer = "";
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res.setEncoding("utf8");
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res.on("data", function (chunk) {
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buffer += chunk;
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});
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res.on("end", function() {
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try {
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var data = JSON.parse(buffer);
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}
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catch(e) {
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Logger.errlog.log("JSON fail: " + options.path);
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var m = buffer.match(/<internalReason>([^<]+)<\/internalReason>/);
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if(m) {
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callback(m[1], res.statusCode, null);
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}
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else {
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callback(true, res.statusCode, null);
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}
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return;
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}
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callback(false, res.statusCode, data);
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});
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});
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req.end();
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};
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// Look up YouTube metadata
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// Fairly straightforward
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exports.getYTInfo = function(id, callback) {
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getJSON({
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host: "gdata.youtube.com",
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port: 80,
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path: "/feeds/api/videos/" + id + "?v=2&alt=json",
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method: "GET",
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dataType: "jsonp",
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timeout: 1000}, callback);
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}
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// Look up a YouTube playlist
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exports.getYTPlaylist = function(id, callback, url) {
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var path = "/feeds/api/playlists/" + id + "?v=2&alt=json";
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if(url) {
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path = "/" + url.split("gdata.youtube.com")[1];
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}
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getJSON({
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host: "gdata.youtube.com",
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port: 80,
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path: path,
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method: "GET",
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dataType: "jsonp",
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timeout: 1000}, callback);
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}
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// Search YouTube
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exports.searchYT = function(terms, callback) {
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// I really miss Python's list comprehensions
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for(var i = 0; i < terms.length; i++) {
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terms[i] = escape(terms[i]);
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}
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var query = terms.join("+");
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getJSON({
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host: "gdata.youtube.com",
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port: 80,
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path: "/feeds/api/videos/?q=" + query + "&v=2&alt=json",
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method: "GET",
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dataType: "jsonp",
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timeout: 1000}, callback);
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}
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exports.getYTSearchResults = function(query, callback) {
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var cback = function(err, res, data) {
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if(err || res != 200) {
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callback(true, null);
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return;
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}
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var vids = [];
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try {
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if(data.feed.entry.length === undefined) {
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return;
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}
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for(var i = 0; i < data.feed.entry.length; i++) {
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try {
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var item = data.feed.entry[i];
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var id = item.media$group.yt$videoid.$t;
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var title = item.title.$t;
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var seconds = item.media$group.yt$duration.seconds;
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var media = new Media(id, title, seconds, "yt");
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media.thumb = item.media$group.media$thumbnail[0];
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vids.push(media);
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}
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catch(e) {
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Logger.errlog.log("getYTSearchResults failed: ");
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Logger.errlog.log(e);
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}
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}
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}
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catch(e) {
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Logger.errlog.log("getYTSearchResults failed: ");
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Logger.errlog.log(e);
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}
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callback(false, vids);
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}
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exports.searchYT(query.split(" "), cback);
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}
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// Look up Soundcloud metadata
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exports.getSCInfo = function(url, callback) {
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const SC_CLIENT = "2e0c82ab5a020f3a7509318146128abd";
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getJSON({
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host: "api.soundcloud.com",
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port: 80,
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path: "/resolve.json?url="+url+"&client_id=" + SC_CLIENT,
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method: "GET",
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dataType: "jsonp",
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timeout: 1000}, function(err, status, data) {
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// This time we can ACTUALLY get the data we want
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getJSON({
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host: "api.soundcloud.com",
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port: 80,
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path: data.location,
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method: "GET",
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dataType: "jsonp",
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timeout: 1000}, callback);
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});
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}
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// Look up Vimeo metadata. Fairly straightforward
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exports.getVIInfo = function(id, callback) {
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getJSON({
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host: "vimeo.com",
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port: 80,
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path: "/api/v2/video/" + id + ".json",
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method: "GET",
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dataType: "jsonp",
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timeout: 1000}, callback);
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}
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// Look up Dailymotion info
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exports.getDMInfo = function(id, callback) {
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var fields = "duration,title"
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getJSONHTTPS({
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host: "api.dailymotion.com",
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port: 443,
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path: "/video/" + id + "?fields=" + fields,
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method: "GET",
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dataType: "jsonp",
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timeout: 1000}, callback);
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}
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// Ustream requires a developer key for their API, and on top of that
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// I couldn't figure out how to use it.
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// I'm regexing the stream ID out of the HTML
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// So sue me
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exports.getUstream = function(name, callback) {
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var opts = {
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host: "www.ustream.tv",
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port: 80,
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path: "/" + name
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};
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http.get(opts, function(res) {
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var html = "";
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res.on("data", function(cnk) {
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html += cnk;
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});
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res.on("end", function() {
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var lines = html.split("\n");
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const re = /cid":([0-9]+)/;
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for(var i = 0; i < lines.length; i++) {
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var m = lines[i].match(re);
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if(m) {
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callback(m[1]);
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return;
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}
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}
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});
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}).on("error", function(err) {
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Logger.errlog.log(err.message);
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});
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}
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exports.getMedia = function(id, type, callback) {
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switch(type) {
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case "yt":
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exports.getYTInfo(id, function(err, res, data) {
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if(err || res != 200) {
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callback(err || true, null);
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return;
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}
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try {
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// Whoever named this should be fired
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var seconds = data.entry.media$group.yt$duration.seconds;
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var title = data.entry.title.$t;
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var media = new Media(id, title, seconds, "yt");
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callback(false, media);
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}
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catch(e) {
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Logger.errlog.log("getMedia failed: ");
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Logger.errlog.log(e.stack);
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callback(true, null);
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}
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});
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break;
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case "vi":
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exports.getVIInfo(id, function(err, res, data) {
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if(err || res != 200) {
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callback(true, null);
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return;
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}
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try {
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data = data[0];
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var seconds = data.duration;
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var title = data.title;
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var media = new Media(id, title, seconds, "vi");
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callback(false, media);
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}
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catch(e) {
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Logger.errlog.log("getMedia failed: ");
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Logger.errlog.log(e);
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callback(true, null);
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}
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});
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break;
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case "dm":
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exports.getDMInfo(id, function(err, res, data) {
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if(err || res != 200) {
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callback(true, null);
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return;
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}
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try {
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var seconds = data.duration;
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var title = data.title;
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var media = new Media(id, title, seconds, "dm");
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callback(false, media);
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}
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catch(e) {
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Logger.errlog.log("getMedia failed: ");
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Logger.errlog.log(e);
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callback(true, null);
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}
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});
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break;
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case "sc":
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exports.getSCInfo(id, function(err, res, data) {
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if(err || res != 200) {
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callback(true, null);
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return;
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}
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try {
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// Soundcloud's durations are in ms
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var seconds = data.duration / 1000;
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var title = data.title;
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var media = new Media(id, title, seconds, "sc");
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callback(false, media);
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}
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catch(e) {
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Logger.errlog.log("getMedia failed: ");
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Logger.errlog.log(e);
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callback(true, null);
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}
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});
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break;
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case "yp":
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var cback = function(err, res, data) {
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if(err || res != 200) {
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callback(true, null);
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return;
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}
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try {
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var vids = [];
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for(var i = 0; i < data.feed.entry.length; i++) {
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try {
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var item = data.feed.entry[i];
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var id = item.media$group.yt$videoid.$t;
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var title = item.title.$t;
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var seconds = item.media$group.yt$duration.seconds;
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var media = new Media(id, title, seconds, "yt");
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vids.push(media);
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}
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catch(e) {
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Logger.errlog.log("getMedia failed: ");
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Logger.errlog.log(e);
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}
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}
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callback(false, vids);
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var links = data.feed.link;
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for(var i = 0; i < links.length; i++) {
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if(links[i].rel == "next") {
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exports.getYTPlaylist(id, cback, links[i].href);
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}
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}
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}
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catch(e) {
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Logger.errlog.log("getMedia failed: ");
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Logger.errlog.log(e);
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callback(true, null);
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}
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}
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exports.getYTPlaylist(id, cback);
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break;
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case "li":
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case "tw":
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case "jt":
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case "us":
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case "jw":
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const prefix = {
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"li": "Livestream.com - ",
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"tw": "Twitch.tv - ",
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"jt": "Justin.tv - ",
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"us": "Ustream.tv - ",
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"jw": "JWPlayer Stream - "
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};
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var media = new Media(data.id, prefix[data.type] + data.id, "--:--", data.type);
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callback(false, media);
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break;
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case "rt":
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case "im":
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const names = {
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"rt": "Livestream",
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"im": "Imgur Album"
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};
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var media = new Media(data.id, names[data.type], "--:--", data.type);
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callback(false, media);
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break;
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default:
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break;
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}
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}
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