sync/lib/channel/mediarefresher.js

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var ChannelModule = require("./module");
var Config = require("../config");
var InfoGetter = require("../get-info");
var Logger = require("../logger");
function MediaRefresherModule(channel) {
ChannelModule.apply(this, arguments);
this._interval = false;
this._media = null;
}
MediaRefresherModule.prototype = Object.create(ChannelModule.prototype);
MediaRefresherModule.prototype.onPreMediaChange = function (data, cb) {
if (this._interval) clearInterval(this._interval);
this._media = data;
switch (data.type) {
case "gd":
return this.initGoogleDocs(data, function () {
cb(null, ChannelModule.PASSTHROUGH);
});
case "gp":
return this.initGooglePlus(data, function () {
cb(null, ChannelModule.PASSTHROUGH);
});
case "vi":
return this.initVimeo(data, function () {
cb(null, ChannelModule.PASSTHROUGH);
});
default:
return cb(null, ChannelModule.PASSTHROUGH);
}
};
MediaRefresherModule.prototype.initGoogleDocs = function (data, cb) {
var self = this;
self.refreshGoogleDocs(data, cb);
/*
* Refresh every 55 minutes.
* The expiration is 1 hour, but refresh 5 minutes early to be safe
*/
self._interval = setInterval(function () {
self.refreshGoogleDocs(data);
}, 55 * 60 * 1000);
};
MediaRefresherModule.prototype.initVimeo = function (data, cb) {
if (!Config.get("vimeo-workaround")) {
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if (cb) cb();
return;
}
var self = this;
self.channel.activeLock.lock();
InfoGetter.vimeoWorkaround(data.id, function (hack) {
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if (self.dead || self.channel.dead) {
return;
}
if (self._media === data) {
self.channel.logger.log("[mediarefresher] Refreshed vimeo video with ID " +
data.id);
data.meta.direct = hack;
}
self.channel.activeLock.release();
if (cb) cb();
});
};
MediaRefresherModule.prototype.refreshGoogleDocs = function (media, cb) {
var self = this;
if (self.dead || self.channel.dead) {
return;
}
self.channel.activeLock.lock();
InfoGetter.getMedia(media.id, "gd", function (err, data) {
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if (self.dead || self.channel.dead) {
return;
}
switch (err) {
case "HTTP 302":
case "Video not found":
case "Private video":
case "Google Docs error: Video has exceeded quota":
case "There is currently a bug with Google Drive which prevents playback of videos 1 hour long or longer.":
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self.channel.logger.log("[mediarefresher] Google Docs refresh failed: " +
err);
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self.channel.activeLock.release();
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if (cb) cb();
return;
default:
if (err) {
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self.channel.logger.log("[mediarefresher] Google Docs refresh failed: " +
err);
Logger.errlog.log("Google Docs refresh failed for ID " + media.id +
": " + err);
self.channel.activeLock.release();
if (cb) cb();
return;
}
}
if (media !== self._media) {
self.channel.activeLock.release();
if (cb) cb();
return;
}
self.channel.logger.log("[mediarefresher] Refreshed Google Docs video with ID " +
media.id);
media.meta = data.meta;
self.channel.activeLock.release();
if (cb) cb();
});
};
MediaRefresherModule.prototype.initGooglePlus = function (media, cb) {
var self = this;
if (self.dead || self.channel.dead) {
return;
}
self.channel.activeLock.lock();
InfoGetter.getMedia(media.id, "gp", function (err, data) {
if (self.dead || self.channel.dead) {
return;
}
switch (err) {
case "HTTP 302":
case "Video not found":
case "Private video":
case "Unable to retreive duration from Google+. This might be because the video is still processing.":
self.channel.logger.log("[mediarefresher] Google+ refresh failed: " +
err);
self.channel.activeLock.release();
if (cb) cb();
return;
default:
if (err) {
self.channel.logger.log("[mediarefresher] Google+ refresh failed: " +
err);
Logger.errlog.log("Google+ refresh failed for ID " + media.id +
": " + err);
self.channel.activeLock.release();
if (cb) cb();
return;
}
}
if (media !== self._media) {
self.channel.activeLock.release();
if (cb) cb();
return;
}
self.channel.logger.log("[mediarefresher] Refreshed Google+ video with ID " +
media.id);
media.meta = data.meta;
self.channel.activeLock.release();
if (cb) cb();
});
};
module.exports = MediaRefresherModule;