mirror of https://github.com/calzoneman/sync.git
522 lines
19 KiB
JavaScript
522 lines
19 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 domain = require("domain");
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var Logger = require("./logger.js");
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var Media = require("./media.js").Media;
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var CustomEmbedFilter = require("./customembed").filter;
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module.exports = function (Server) {
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var urlRetrieve = function (transport, options, callback) {
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// Catch any errors that crop up along the way of the request
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// in order to prevent them from reaching the global handler.
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// This should cut down on needing to restart the server
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var d = domain.create();
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d.on("error", function (err) {
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Logger.errlog.log("urlRetrieve failed: " + err);
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Logger.errlog.log("Request was: " + options.host + options.path);
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callback(503, err);
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});
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d.run(function () {
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var req = transport.request(options, function (res) {
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var buffer = "";
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res.setEncoding("utf-8");
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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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callback(res.statusCode, buffer);
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});
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});
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req.end();
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});
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};
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var Getters = {
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/* youtube.com */
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yt: function (id, callback) {
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if(Server.cfg["enable-ytv3"] && Server.cfg["ytv3apikey"]) {
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Getters["ytv3"](id, callback);
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return;
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}
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var options = {
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host: "gdata.youtube.com",
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port: 443,
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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
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};
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if(Server.cfg["ytv2devkey"]) {
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options.headers = {
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"X-Gdata-Key": "key=" + Server.cfg["ytv2devkey"]
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};
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}
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urlRetrieve(https, options, function (status, data) {
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if(status === 404) {
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callback("Video not found", null);
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return;
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} else if(status === 403) {
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callback("Private video", null);
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return;
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} else if(status === 503) {
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callback("API failure", null);
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return;
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} else if(status !== 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 = JSON.parse(data);
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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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} catch(e) {
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// Gdata version 2 has the rather silly habit of
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// returning error codes in XML when I explicitly asked
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// for JSON
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var m = buffer.match(/<internalReason>([^<]+)<\/internalReason>/);
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if(m === null)
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m = buffer.match(/<code>([^<]+)<\/code>/);
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var err = true;
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if(m) {
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if(m[1] === "too_many_recent_calls") {
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err = "YouTube is throttling the server right "+
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"now for making too many requests. "+
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"Please try again in a moment.";
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} else {
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err = m[1];
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}
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}
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callback(err, null);
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}
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});
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},
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/* youtube.com API v3 (requires API key) */
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ytv3: function (id, callback) {
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var params = [
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"part=" + encodeURIComponent("id,snippet,contentDetails"),
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"id=" + id,
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"key=" + Server.cfg["ytapikey"]
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].join("&");
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var options = {
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host: "www.googleapis.com",
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port: 443,
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path: "/youtube/v3/videos?" + params,
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method: "GET",
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dataType: "jsonp",
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timeout: 1000
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};
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urlRetrieve(https, options, function (status, data) {
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if(status !== 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 = JSON.parse(data);
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// I am a bit disappointed that the API v3 just doesn't
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// return anything in any error case
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if(data.pageInfo.totalResults !== 1) {
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callback(true, null);
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return;
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}
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var vid = data.items[0];
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var title = vid.snippet.title;
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// No, it's not possible to get a number representing
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// the video length. Instead, I get a time of the format
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// PT#M#S which represents
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// "Period of Time" # Minutes, # Seconds
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var m = vid.contentDetails.duration.match(/PT(\d+)M(\d+)S/);
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var seconds = parseInt(m[1]) * 60 + parseInt(m[2]);
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var media = new Media(id, title, seconds, "yt");
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callback(false, media);
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} catch(e) {
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callback(true, media);
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}
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});
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},
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/* youtube.com playlists */
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yp: function (id, callback, url) {
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var path = "/feeds/api/playlists/" + id + "?v=2&alt=json";
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// YouTube only returns 25 at a time, so I have to keep asking
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// for more with the URL they give me
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if(url !== undefined) {
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path = "/" + url.split("gdata.youtube.com")[1];
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}
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var options = {
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host: "gdata.youtube.com",
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port: 443,
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path: path,
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method: "GET",
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dataType: "jsonp",
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timeout: 1000
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};
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if(Server.cfg["ytv2devkey"]) {
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options.headers = {
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"X-Gdata-Key": "key=" + Server.cfg["ytv2devkey"]
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};
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}
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urlRetrieve(https, options, function (status, data) {
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if(status === 404) {
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callback("Playlist not found", null);
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return;
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} else if(status === 403) {
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callback("Playlist is private", null);
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return;
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} else if(status === 503) {
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callback("API failure", null);
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return;
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} else if(status !== 200) {
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callback(true, null);
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}
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try {
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data = JSON.parse(data);
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var vids = [];
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for(var i in data.feed.entry) {
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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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} catch(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 in links) {
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if(links[i].rel === "next")
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Getters["yp"](id, callback, links[i].href);
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}
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} catch(e) {
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callback(true, null);
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}
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});
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},
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/* youtube.com search */
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ytSearch: function (terms, callback) {
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for(var i in terms)
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terms[i] = encodeURIComponent(terms[i]);
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var query = terms.join("+");
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var options = {
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host: "gdata.youtube.com",
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port: 443,
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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
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};
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if(Server.cfg["ytv2devkey"]) {
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options.headers = {
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"X-Gdata-Key": "key=" + Server.cfg["ytv2devkey"]
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};
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}
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urlRetrieve(https, options, function (status, data) {
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if(status !== 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 = JSON.parse(data);
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var vids = [];
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for(var i in data.feed.entry) {
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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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} catch(e) {
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}
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}
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callback(false, vids);
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} catch(e) {
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callback(true, null);
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}
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});
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},
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/* vimeo.com */
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vi: function (id, callback) {
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var options = {
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host: "vimeo.com",
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port: 443,
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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
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};
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urlRetrieve(https, options, function (status, data) {
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if(status === 404) {
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callback("Video not found", null);
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return;
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} else if(status === 403) {
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callback("Private video", null);
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return;
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} else if(status === 503) {
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callback("API failure", null);
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return;
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} else if(status !== 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 = JSON.parse(data);
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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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} catch(e) {
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var err = true;
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if(buffer.match(/not found/))
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err = "Video not found";
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callback(err, null);
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}
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});
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},
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/* dailymotion.com */
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dm: function (id, callback) {
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// Dailymotion's API is an example of an API done right
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// - Supports SSL
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// - I can ask for exactly which fields I want
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// - URL is simple
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// - Field names are sensible
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// Other media providers take notes, please
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var options = {
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host: "api.dailymotion.com",
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port: 443,
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path: "/video/" + id + "?fields=duration,title",
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method: "GET",
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dataType: "jsonp",
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timeout: 1000
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};
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urlRetrieve(https, options, function (status, data) {
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if(status !== 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 = JSON.parse(data);
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var title = data.title;
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var seconds = data.duration;
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if(title === "Deleted video" && seconds === 10) {
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callback("Video not found", null);
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return;
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}
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var media = new Media(id, title, seconds, "dm");
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callback(false, media);
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} catch(e) {
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callback(err, null);
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}
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});
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},
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/* soundcloud.com */
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sc: function (id, callback) {
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// Soundcloud's API is badly designed and badly documented
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// In order to lookup track data from a URL, I have to first
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// make a call to /resolve to get the track id, then make a second
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// call to /tracks/{track.id} to actally get useful data
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// This is a waste of bandwidth and a pain in the ass
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const SC_CLIENT = "2e0c82ab5a020f3a7509318146128abd";
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var options = {
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host: "api.soundcloud.com",
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port: 443,
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path: "/resolve.json?url=" + id + "&client_id=" + SC_CLIENT,
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method: "GET",
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dataType: "jsonp",
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timeout: 1000
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};
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urlRetrieve(https, options, function (status, data) {
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if(status === 404) {
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callback("Sound not found", null);
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return;
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} else if(status === 503) {
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callback("API failure", null);
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return;
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} else if(status !== 302) {
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callback(true, null);
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return;
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}
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var track = null;
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try {
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data = JSON.parse(data);
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track = data.location;
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} catch(e) {
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callback(true, null);
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return;
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}
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var options2 = {
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host: "api.soundcloud.com",
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port: 443,
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path: track,
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method: "GET",
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dataType: "jsonp",
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timeout: 1000
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};
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// I want to get off async's wild ride
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urlRetrieve(https, options2, function (status, data) {
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if(status !== 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 = JSON.parse(data);
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// Duration is in ms, but I want s
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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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} catch(e) {
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callback(true, null);
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}
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});
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});
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},
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/* livestream.com */
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li: function (id, callback) {
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var title = "Livestream.com - " + id;
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var media = new Media(id, title, "--:--", "li");
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callback(false, media);
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},
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/* twitch.tv */
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tw: function (id, callback) {
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var title = "Twitch.tv - " + id;
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var media = new Media(id, title, "--:--", "tw");
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callback(false, media);
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},
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/* justin.tv */
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jt: function (id, callback) {
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var title = "Justin.tv - " + id;
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var media = new Media(id, title, "--:--", "jt");
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callback(false, media);
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},
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/* ustream.tv */
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us: function (id, callback) {
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var options = {
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host: "www.ustream.tv",
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port: 80,
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path: "/" + id,
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method: "GET",
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timeout: 1000
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};
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urlRetrieve(http, options, function (status, data) {
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if(status !== 200) {
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callback(true, null);
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return;
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}
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// Regexing the ID out of the HTML because
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// Ustream's API is so horribly documented
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// I literally could not figure out how to retrieve
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// this information.
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//
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// [](/eatadick)
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var m = data.match(/cid":([0-9]+)/);
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if(m) {
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var title = "Ustream.tv - " + id;
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var media = new Media(m[1], title, "--:--", "us");
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callback(false, media);
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} else {
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callback(true, null);
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}
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});
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},
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/* JWPlayer */
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jw: function (id, callback) {
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var title = "JWPlayer - " + id;
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var media = new Media(id, title, "--:--", "jw");
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callback(false, media);
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},
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/* rtmp stream */
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rt: function (id, callback) {
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var title = "Livestream";
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var media = new Media(id, title, "--:--", "rt");
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callback(false, media);
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},
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/* imgur.com albums */
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im: function (id, callback) {
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var title = "Imgur Album - " + id;
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var media = new Media(id, title, "--:--", "im");
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callback(false, media);
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},
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/* custom embed */
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cu: function (id, callback) {
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id = CustomEmbedFilter(id);
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var media = new Media(id, "Custom Media", "--:--", "cu");
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callback(false, media);
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}
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};
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return {
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Getters: Getters,
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getMedia: function (id, type, callback) {
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if(type in this.Getters) {
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this.Getters[type](id, callback);
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}
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}
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};
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}
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