urlParser to get extract information like provider, videoId and other from urls
目前為
此腳本不應該直接安裝，它是一個供其他腳本使用的函式庫。欲使用本函式庫，請在腳本 metadata 寫上： // @require https://update.greatest.deepsurf.us/scripts/2859/8038/Video%20Url%20Parser.js
// ==UserScript==
// @name Video Url Parser
// @namespace Zod-
// @description urlParser to get extract information like provider, videoId and other from urls
// @source https://github.com/Zod-/jsVideoUrlParser
// @copyright Julian Hangstörfer
// @version 0.1
// @license GPL 3
// ==/UserScript==
var urlParser = (function () {
"use strict";
var plugins = {};
return {
'parse': function (url) {
var match = url.match(/(https?:\/\/)?([^\.]+\.)?(\w+)\./i),
provider = match ? match[3] : undefined,
result,
createdUrl;
if (match && provider && plugins[provider]) {
result = plugins[provider].parse.call(this, url);
if (result) {
result.provider = plugins[provider].provider;
return result;
}
}
return undefined;
},
'bind': function (plugin) {
plugins[plugin.provider] = plugin;
if (plugin.alternatives) {
var i;
for (i = 0; i < plugin.alternatives.length; i += 1) {
plugins[plugin.alternatives[i]] = plugin;
}
}
},
'create': function (videoInfo) {
if (plugins[videoInfo.provider].create) {
return plugins[videoInfo.provider].create.call(this, videoInfo);
}
return undefined;
}
};
}());
//parses strings like 1h30m20s to seconds
function getTime(timestring) {
"use strict";
var totalSeconds = 0,
currentValue = 0,
i,
timeValues = {
's': 1,
'm': 1 * 60,
'h': 1 * 60 * 60,
'd': 1 * 60 * 60 * 24,
'w': 1 * 60 * 60 * 24 * 7
};
//is the format 1h30m20s etc
if (!timestring.match(/^(\d+[smhdw]?)+$/)) {
return 0;
}
for (i = 0; i < timestring.length; i += 1) {
if (timestring[i] >= '0' && timestring[i] <= '9') {
//parse the string to decimal
currentValue = 10 * currentValue + parseInt(timestring[i], 10);
} else if (timestring[i] in timeValues) {
//convert to seconds and delete the entry so there can only be one of this element e.g no 20s20s
totalSeconds += timeValues[timestring[i]] * currentValue;
delete timeValues[timestring[i]];
currentValue = 0;
} else {
//discard the value if the format doesn't fit the others
currentValue = 0;
}
}
//if the last string was just numbers and the s tag hasn't been used before then add it as seconds
if (currentValue !== 0 && 's' in timeValues) {
totalSeconds += currentValue;
delete timeValues.s;
}
return totalSeconds;
}
//http://joquery.com/2012/string-format-for-javascript
if (typeof String.prototype.format !== 'function') {
String.prototype.format = function () {
// The string containing the format items (e.g. "{0}")
// will and always has to be the first argument.
var theString = this,
i,
regEx;
// start with the second argument (i = 1)
for (i = 0; i < arguments.length; i += 1) {
// "gm" = RegEx options for Global search (more than one instance)
// and for Multiline search
regEx = new RegExp("\\{" + (i) + "\\}", "gm");
theString = theString.replace(regEx, arguments[i]);
}
return theString;
};
}
urlParser.bind({
'provider': 'dailymotion',
'alternatives': ['dai'],
'parse': function (url) {
"use strict";
var match,
id,
startTime,
result = {};
match = url.match(/((\/video)|(ly))\/([A-Za-z0-9]+)/i);
id = match ? match[4] : undefined;
match = url.match(/[#\?&]start=([A-Za-z0-9]+)/i);
startTime = match ? getTime(match[1]) : undefined;
if (!id) {
return undefined;
}
result.mediaType = 'video';
result.id = id;
if (startTime) {
result.startTime = startTime;
}
return result;
},
'create': function (videoInfo) {
"use strict";
if (videoInfo.startTime) {
return 'http://www.dailymotion.com/video/{0}?start={1}'.format(videoInfo.id, videoInfo.startTime);
}
return 'http://dai.ly/{0}'.format(videoInfo.id);
}
});
//not finished
urlParser.bind({
'provider': 'livestream',
'parse': function (url) {
"use strict";
var match,
channel;
match = url.match(/livestream\.com\/(\w+)/i);
channel = match ? match[1] : undefined;
if (!channel) {
return undefined;
}
return {
'mediaType': 'stream',
'channel': channel
};
}
});
urlParser.bind({
'provider': 'twitch',
'parse': function (url) {
"use strict";
var match,
id,
channel,
videoIdPrefix,
result = {};
match = url.match(/twitch\.tv\/(\w+)(\/(.)\/(\d+))?/i);
channel = match ? match[1] : undefined;
videoIdPrefix = match ? match[3] : undefined;
id = match ? match[4] : undefined;
match = url.match(/((\?channel)|(\&utm_content))=(\w+)/i);
channel = match ? match[4] : channel;
if (!channel) {
return undefined;
}
if (id) {
result.mediaType = 'video';
result.id = id;
result.videoIdPrefix = videoIdPrefix;
} else {
result.mediaType = 'stream';
}
result.channel = channel;
return result;
},
'create': function (videoInfo) {
"use strict";
var url;
if (videoInfo.mediaType === 'stream') {
url = 'http://twitch.tv/{0}'.format(videoInfo.channel);
} else if (videoInfo.mediaType === 'video') {
url = 'http://twitch.tv/{0}/{1}/{2}'.format(videoInfo.channel, videoInfo.videoIdPrefix, videoInfo.id);
}
return url;
}
});
urlParser.bind({
'provider': 'vimeo',
'alternatives': ['vimeopro'],
'parse': function (url) {
"use strict";
var match,
id;
match = url.match(/(\/((channels\/[\w]+)|((album\/\d+\/)?videos?)))?\/(\d+)/i);
id = match ? match[6] : undefined;
if (!id) {
return undefined;
}
return {
'mediaType': 'video',
'id': id
};
},
'create': function (videoInfo) {
"use strict";
return 'http://vimeo.com/{0}'.format(videoInfo.id);
}
});
urlParser.bind({
'provider': 'youtube',
'alternatives': ['youtu'],
'parse': function (url) {
"use strict";
var match,
id,
playlistId,
startTime,
result = {};
match = url.match(/(((v|be|videos)\/)|(v=))([\w\-]{11})/i);
id = match ? match[5] : undefined;
match = url.match(/list=([\w\-]+)/i);
playlistId = match ? match[1] : undefined;
match = url.match(/[#\?&](star)?t=([A-Za-z0-9]+)/i);
startTime = match ? getTime(match[2]) : undefined;
if (id) {
result.mediaType = 'video';
result.id = id;
if (playlistId) {
result.playlistId = playlistId;
}
if (startTime) {
result.startTime = startTime;
}
} else if (playlistId) {
result.mediaType = 'playlist';
result.playlistId = playlistId;
} else {
return undefined;
}
return result;
},
'create': function (videoInfo) {
"use strict";
var url;
if (videoInfo.mediaType === 'video') {
if (!videoInfo.playlistId) {
url = 'http://youtu.be/{0}'.format(videoInfo.id);
} else {
url = 'https://www.youtube.com/watch?v={0}&list={1}'.format(videoInfo.id, videoInfo.playlistId);
}
if (videoInfo.startTime) {
url += '#t={0}'.format(videoInfo.startTime);
}
} else if (videoInfo.mediaType === 'playlist') {
url = 'https://www.youtube.com/playlist?feature=share&list={0}'.format(videoInfo.playlistId);
}
return url;
}
});