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获取视频下载链接，使用方法：进入任意课程点击下载即可。如http://www.imooc.com/learn/814。github:https://github.com/Ahaochan/Tampermonkey，欢迎star和fork。
当前为
// ==UserScript==
// @name 慕课网 下载视频
// @namespace https://github.com/Ahaochan/Tampermonkey
// @version 0.2.3
// @description 获取视频下载链接，使用方法：进入任意课程点击下载即可。如http://www.imooc.com/learn/814。github:https://github.com/Ahaochan/Tampermonkey，欢迎star和fork。
// @author Ahaochan
// @match http://www.imooc.com/learn/*
// @match https://www.imooc.com/learn/*
// @grant GM_xmlhttpRequest
// @grant GM_setClipboard
// @require http://code.jquery.com/jquery-1.11.0.min.js
// ==/UserScript==
(function () {
'use strict';
/**--------------------------------获取下载链接---------------------------------------------*/
var videoes = [];
var $medias = $('.mod-chapters').find('a.J-media-item');
var total = $medias.length;
var len = total;
//添加提示标签
$('.course-menu').append($('<li><a href="javascript:void(0)"><span id="downTip">视频解析中...</span></a></li>'));
if(!isLogin){
$('#downTip').text('视频下载异常，点击进行登录');
$('#downTip').click(function(){
var clickEvent = document.createEvent ('MouseEvents');
clickEvent.initEvent ('click', true, true);
document.getElementById('js-signin-btn').dispatchEvent (clickEvent);
});
return;
}
//遍历获取下载链接
$medias.each(function (key, value) {
var vid = $(this).parent().attr('data-media-id');
var name = $(this).text();
var pattern = /\(\d\d:\d\d\)/;
if (!pattern.test(name)) {
total--;
if (key == len - 1 && !total) {
$('#downTip').text('无视频下载');
}
return;
}
name = name.replace(/\(\d{2}:\d{2}\)/, '').replace(/\s/g, '');
//v2(vid, name, $(this));
v3(vid, name, $(this));
});
/**--------------------------------获取下载链接---------------------------------------------*/
/**--------------------------------视频下载解析接口-----------------------------------------*/
/** 旧版接口，只能解析v1,v2 */
function v2(vid, name, item){
$.getJSON('/course/ajaxmediainfo/?mid=' + vid + '&mode=flash', function(response) {
var url = response.data.result.mpath[0];
parseVideo(vid, name, url, item);
});
}
/** 新版接口，解析v1,v2,v3 */
function v3(vid, name, item){
GM_xmlhttpRequest({
method: 'GET',
url: 'http://m.imooc.com/video/'+vid,
onload: function(response) {
var pattern = /(http.+mp4)/;
var url = response.responseText.match(pattern)[0];
parseVideo(vid, name, url, item);
}
});
}
/**--------------------------------视频下载解析接口-----------------------------------------*/
/**--------------------------------处理数据-------------------------------------------------*/
function parseVideo(vid, name, url, item){
var urlL = url.replace('H.mp4','M.mp4').replace('M.mp4','L.mp4');
var urlM = url.replace('H.mp4','M.mp4').replace('L.mp4','M.mp4');
var urlH = url.replace('L.mp4','M.mp4').replace('M.mp4','H.mp4');
var video = {
vid: vid,
name: name,
url: [ urlL, urlM, urlH ]
};
videoes.push(video);
//添加单个下载链接
var $link = $('<a href="'+video.url[clarityType]+'" style="position:absolute;right:100px;top:0;" target="_blank">下载</a>');
$link.bind('DOMNodeInserted', function() { $(this).find('i').remove();} );//移除子标签
item.after($link);
//添加全部下载链接
if (videoes.length == total) {
$('#downTip').text('视频下载(' + total + ')，已复制到剪贴板');
videoes.sort(function(a,b){
if(a.name>b.name) return 1;
else if(a.name<b.name) return -1;
else return 0;
});
//显示
$('#downloadBox').append($('<div style="margin-top:24px;">' +
'<div style="border:1px solid #b7bbbf;box-sizing:border-box;border-radius:2px;">' +
'<textarea id="downLoadArea" style="width:97%;min-height:100px;padding:8px;color:#555;resize:none;line-height:18px;"></textarea>' +
'</div>')
);
textAreaChange();
}
}
/**--------------------------------处理数据-------------------------------------------------*/
/**--------------------------------导出设置-------------------------------------------------*/
var clarityType = 2;
var outTextType = 'idm';
$('div.mod-tab-menu').after(
$('<div id="downloadBox" class="course-brief">'+
'<div style="float:left;margin-right:30px;">'+
'<h4 style="font-weight:700;font-size: 16px;marginTop:10px">下载清晰度 : </h4>'+
'<label for="lowClarity" >普清(L)</label><input type="radio" id="lowClarity" name="clarity" value="0" />'+
'<label for="middleClarity">高清(M)</label><input type="radio" id="middleClarity" name="clarity" value="1" />'+
'<label for="highClarity" >超清(H)</label><input type="radio" id="highClarity" name="clarity" value="2" checked="checked" />'+
'</div>'+
'<div>'+
'<h4 style="font-weight:700;font-size: 16px;marginTop:10px">导出格式 : </h4>'+
'<label for="rawOutText" >raw </label><input type="radio" id="rawOutText" name="outText" value="raw"/>'+
'<label for="idmOutText" >idm </label><input type="radio" id="idmOutText" name="outText" value="idm" checked="checked" />'+
'<label for="xmlOutText" >xml </label><input type="radio" id="xmlOutText" name="outText" value="xml" />'+
'<label for="jsomOutText">json</label><input type="radio" id="jsomOutText" name="outText" value="json"/><br/>'+
'</div>'+
'</div>')
);
$('input:radio').css('margin','auto 50px auto 3px');//设置单选框
$('input:radio[name=clarity]').change(function() { clarityType = this.value; textAreaChange(); });
$('input:radio[name=outText]').change(function() { outTextType = this.value; textAreaChange(); });
function textAreaChange(){
var downloadTextArea = getTextLinks(clarityType,outTextType);
GM_setClipboard(downloadTextArea);
$('#downloadBox textarea').text(downloadTextArea);
}
/**--------------------------------导出设置-------------------------------------------------*/
/**--------------------------------格式化下载链接用以显示---------------------------------*/
function getTextLinks(clarityType, outTextType){
if(outTextType === 'json') return JSON.stringify(videoes);
else {
var str = '';
for(var i in videoes) {
if(outTextType === 'xml'){
str += '\t<video>\n\t\t<url>' + videoes[i].url[clarityType] + '</url>\n\t\t<name>' + videoes[i].name + '</name>\n\t</video>\n';
} else if(outTextType === 'raw'){
str += videoes[i].url[clarityType]+'\n';
} else {//idm
str += 'filename='+videoes[i].name+'&fileurl='+videoes[i].url[clarityType]+'\n';
}
}
if(outTextType === 'xml') str = '<?xml version="1.0" encoding="utf-8" ?>\n<videoes>\n'+str+'</videoes>';
return str;
}
}
/**--------------------------------格式化下载链接用以显示---------------------------------*/
})();