Lynda Subtitles Downloader

Lynda-Subtitle-Downloader.js

// ==UserScript==
// @id             nima-rahbar
// @name           Lynda Subtitles Downloader
// @name:el        Λήψη υποτίτλων Lynda
// @name:fa        دانلود زیرنویس های سایت لیندا
// @version        1.1.3
// @author         Nima Rahbar
// @namespace      https://www.github.com/nima-rahbar
// @description    Download subtitles on Lynda.com
// @icon           https://nimarahbar.com/wp-content/uploads/2017/07/favicon.png
// @match          https://www.lynda.com/*
// @grant          GM_xmlhttpRequest
// @require        https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js
// @require        https://cdnjs.cloudflare.com/ajax/libs/jszip/3.5.0/jszip.min.js
// @require        https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/2.0.5/FileSaver.min.js
// @downloadURL    https://raw.githubusercontent.com/nima-rahbar/Lynda-Subtitles-Downloader/main/Lynda-Subtitles-Downloader.js
// @updateURL      https://raw.githubusercontent.com/nima-rahbar/Lynda-Subtitles-Downloader/main/Lynda-Subtitles-Downloader.js
// ==/UserScript==


this.$ = this.jQuery = jQuery.noConflict(true);
$(document).ready(function(){
    if( $('div.col-xs-11.col-md-10.video-name-cont').length != 0 ){

            $('<div />', {
                id: "allsubs",
                style: "width:100%; max-height:300px; margin:20px 0; padding: 10px 15px; background-color:rgba(51,51,51,.8); color: #fff; overflow-y: auto; border-radius: 5px;",
                html: '<h3>Download Subtitles</h3>',
            }).appendTo('#course-feedback');

            var defaultTitle = $('.default-title').text();
            var videoList = $('div.col-xs-11.col-md-10.video-name-cont');
            var courseID = $('#video-container').data('course-id');
            $('#allsubs').append('<ul></ul>');
            var subDown = $('#allsubs ul');
            $('<button />',{
                id: "srt-archive",
                text: 'Download zip file',
                style: 'display: block; margin: 25px 0; background-color: #fff; color: #000; border: none; padding: 7px 10px;',
            }).appendTo('#allsubs');

            var zip = new JSZip();

            $(videoList).each(function(v_i, item){
                var videoData = $(item).find('a'),
                    videoID = $(videoData).data('ga-value'),
                    videoSrt = 'https://www.lynda.com/ajax/player/transcript?courseID=' + courseID + '&videoID=' + videoID,
                    rawTitle = trim($(item).find('a').html()),
                    forbidden_chars = ['?', ':', '<', '>', '*', '/'],
                    wholeTitle = (v_i + 1) + ' - ' + rawTitle.replace(/^\.{1,}(.+)$/m, '$1'); // Remove first dot (if exists)
                for(var i = 0; i < forbidden_chars.length; i++){
                    while(wholeTitle.indexOf(forbidden_chars[i]) != -1){
                        wholeTitle = wholeTitle.replace(forbidden_chars[i], "");
                    }
                }
                if( v_i < 9 ){
                    wholeTitle = "0" + wholeTitle;
                }
                $(subDown).append( '<li style="margin: 5px 0;"><a href="' + videoSrt + '" download="' + wholeTitle + '.srt' + '" style="font-size: 1.2rem;">' + wholeTitle + '</a></li>' );

                $.ajax({
                    url: 'https://www.lynda.com/ajax/player/transcript?courseID=' + courseID + '&videoID=' + videoID,
                    success: function(response) {
                        zip.file(wholeTitle + '.srt', response);
                    },
                    dataType: 'text'
                });

            });

            function trim(str){
                return str.replace(/(^\s*)|(\s*$)/g, '');
            }

            $("#srt-archive").on("click", function () {
                zip.generateAsync({type:"blob"}).then(function (blob) {
                    saveAs(blob, defaultTitle + ".zip");
                }, function (err) {
                    $("#srt-archive").text(err);
                });
            });

    }
});