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FDU_Class_Schedule_Generator

Generate an .ics format document from eHall(https://my.fudan.edu.cn/list/bks_xx_kcb)

  1. // ==UserScript==
  2. // @name FDU_Class_Schedule_Generator
  3. // @name:zh 复旦大学课表生成器
  4. // @description Generate an .ics format document from eHall(https://my.fudan.edu.cn/list/bks_xx_kcb)
  5. // @description:zh 从eHall个人信息（https://my.fudan.edu.cn/list/bks_xx_kcb）生成ics格式的课表
  6. // @version 1.0.0
  7. // @include https://my.fudan.edu.cn/list/bks_xx_kcb
  8. // @supportURL qsliu2017@outlook.com
  9. // @namespace https://greasyfork.org/users/666994
  10. // ==/UserScript==
  11.  
  12.  
  13. function chooseSemester() {
  14.     //get semesters id
  15.     const nav = document.getElementsByClassName("nav")[0];
  16.     semesters = {};
  17.     for (const child of nav.children) {
  18.         const semesterNavReg = /nav-(\d{10})/;
  19.         if (semesterNavReg.test(child.id))
  20.             semesters[RegExp.$1] = child.firstElementChild.innerHTML;
  21.     }
  22.  
  23.     //generate choose form
  24.     let formHTML = "";
  25.     for (const semestersId in semesters) {
  26.         formHTML += `
  27.     <div class="radio">
  28.     <label>
  29.     <input type="radio" name="semesterOption" id="${semestersId}" value="${semestersId}">
  30.     ${semesters[semestersId]}
  31.     </label>
  32.     </div>
  33. `
  34.     }
  35.  
  36.     //include bootstrap
  37.     let headElement = document.getElementsByTagName('head')[0];
  38.     headElement.innerHTML += `
  39.     <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
  40.     <script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
  41.     <script src="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/js/bootstrap.min.js"></script>
  42.     `;
  43.  
  44.     //generate choose modal
  45.     let bodyElement = document.getElementsByTagName('body')[0];
  46.     bodyElement.innerHTML += `
  47.     <!-- Modal -->
  48.     <div class="modal fade" id="chooseModal" tabindex="-1" role="dialog" aria-labelledby="chooseModalLabel">
  49.     <div class="modal-dialog" role="document">
  50.     <div class="modal-content">
  51.     <div class="modal-header">
  52.     <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
  53.     <h4 class="modal-title" id="chooseModalLabel">选择学期</h4>
  54.     </div>
  55.     <form name="chooseForm" class="modal-body">
  56.     ${formHTML}
  57.     <h5>请从<a href="http://www.jwc.fudan.edu.cn/">教务处</a>找到这个学期的起始，即第0周的星期日</h5>
  58.     <h6>如果是暑假学期，第0周应该是教务处公布的开始上课时间的前一周</h6>
  59.     <input type="datetime-local" name="fisrtDate" id="firstDate">
  60.     </form>
  61.     <div class="modal-footer">
  62.     <button class="btn btn-primary" id="chooseModalSubmit" data-dismiss="modal">生成课表</button>
  63.     </div>
  64.     </div>
  65.     </div>
  66.     </div>
  67.     `;
  68.     document.getElementById("chooseModalSubmit")
  69.         .addEventListener("click", generateClassSchedule);
  70.     $('#chooseModal').modal('show');
  71. }
  72.  
  73. function generateClassSchedule() {
  74.     const semesterId = document.chooseForm.semesterOption.value,
  75.         firstDate = document.chooseForm.fisrtDate.value;
  76.     FirstdateOfSemester = firstDate.slice(0, 10);
  77.     PublicClassTime = getPublicClassTime(semesterId);
  78.     includeFileSaver();
  79.     let blob = new Blob([iCalendarFormatter.ClassesCalendar(getClasses(semesterId))], { type: "text/plain;charset=utf-8" });
  80.     saveAs(blob, semesters[semesterId] + ".ics");
  81. }
  82.  
  83. class ClassTimeAndPlace {
  84.  
  85.     //教室、上课时间、上课周
  86.     constructor(classroom, time, weeks) {
  87.         this.classroom = classroom;
  88.         this.parseTime(time);
  89.         this.parseWeeks(weeks);
  90.     }
  91.  
  92.     //把上课时间转化为Datetime格式
  93.     parseTime(time) {
  94.         const timeReg = /星期(.) 第(\d*)-(\d*)节/;
  95.         if (timeReg.exec(time)) {
  96.             this.weekday = ClassTimeAndPlace.WEEKDAYS()[RegExp.$1];
  97.             this.starttime = PublicClassTime[parseInt(RegExp.$2) - 1][0];
  98.             this.endtime = PublicClassTime[parseInt(RegExp.$3) - 1][1];
  99.         }
  100.     }
  101.  
  102.     //把上课周转化为数组
  103.     parseWeeks(weeks) {
  104.         const weeksReg = /(\d+-\d+|\d)/g,
  105.             weekReg = /(\d+)/,
  106.             durationReg = /(\d+)-(\d+)/;
  107.         this.weeks = [];
  108.         let weekDurations = [];
  109.         while (weeksReg.test(weeks)) {
  110.             weekDurations.push(RegExp.$1);
  111.         }
  112.         for (const duration of weekDurations) {
  113.             if (durationReg.test(duration)) {
  114.                 this.weeks.push(
  115.                     [firstDatetimeOfWeek(parseInt(RegExp.$1)),
  116.                     lastDatetimeOfWeek(parseInt(RegExp.$2))]);
  117.             }
  118.             else if (weekReg.test(duration)) {
  119.                 this.weeks.push(
  120.                     [firstDatetimeOfWeek(parseInt(RegExp.$1)),
  121.                     lastDatetimeOfWeek(parseInt(RegExp.$1))])
  122.             }
  123.         }
  124.     }
  125.  
  126.     //获取第一次课的开始时间
  127.     getFirstStartDatetime() {
  128.         const firstWeek = this.weeks[0][0],
  129.             firstDate = dateToDatetime(new Date(datetimeToDate(firstWeek).getTime() + ClassTimeAndPlace.WEEKDAYS_TO_NUM()[this.weekday] * 24 * 60 * 60 * 1000));
  130.         return firstDate.slice(0, -6) + this.starttime;
  131.     }
  132.  
  133.     //获取第一次课的结束时间
  134.     getFirstEndDatetime() {
  135.         const firstWeek = this.weeks[0][0],
  136.             firstDate = dateToDatetime(new Date(datetimeToDate(firstWeek).getTime() + ClassTimeAndPlace.WEEKDAYS_TO_NUM()[this.weekday] * 24 * 60 * 60 * 1000));
  137.         return firstDate.slice(0, -6) + this.endtime;
  138.     }
  139.     static WEEKDAYS() {
  140.         return {
  141.             "日": "SU",
  142.             "一": "MO",
  143.             "二": "TU",
  144.             "三": "WE",
  145.             "四": "TH",
  146.             "五": "FR",
  147.             "六": "SA"
  148.         }
  149.     }
  150.     static WEEKDAYS_TO_NUM() {
  151.         return {
  152.             "SU": 0,
  153.             "MO": 1,
  154.             "TU": 2,
  155.             "WE": 3,
  156.             "TH": 4,
  157.             "FR": 5,
  158.             "SA": 6
  159.         }
  160.     }
  161. }
  162.  
  163. class Class {
  164.     constructor(id, name) {
  165.         this.id = id;
  166.         this.name = name;
  167.         this.timeAndPlace = [];
  168.     }
  169.     AddTimeAndPlace(classroom, time, weeks) {
  170.         this.timeAndPlace.push(new ClassTimeAndPlace(classroom, time, weeks));
  171.     }
  172. }
  173.  
  174. function getClasses(semesterId) {
  175.     let listId = "list-" + semesterId,
  176.         list = document.getElementById(listId),
  177.         table = list
  178.             .getElementsByTagName("table")[0]
  179.             .getElementsByTagName("tbody")[0],
  180.         rowSpan = 0,
  181.         currentClass,
  182.         Classes = [];
  183.     for (const record of table.children) {
  184.         if (rowSpan <= 0) {
  185.             rowSpan = record.children[0].rowSpan;
  186.             currentClass = new Class(
  187.                 record.children[0].innerHTML,
  188.                 record.children[1].innerHTML);
  189.             currentClass.AddTimeAndPlace(
  190.                 record.children[2].innerHTML,
  191.                 record.children[3].innerHTML,
  192.                 record.children[4].innerHTML);
  193.         }
  194.         else {
  195.             currentClass.AddTimeAndPlace(
  196.                 record.children[0].innerHTML,
  197.                 record.children[1].innerHTML,
  198.                 record.children[2].innerHTML);
  199.         }
  200.         rowSpan--;
  201.         if (rowSpan <= 0) {
  202.             Classes.push(currentClass);
  203.         }
  204.     }
  205.     return Classes;
  206. }
  207.  
  208. function getPublicClassTime(semesterId) {
  209.     const tableId = "table-" + semesterId + "-1",
  210.         table = document.getElementById(tableId).getElementsByTagName("tbody")[0],
  211.         timeReg = /(\d+):(\d+)-(\d+):(\d+)/;
  212.     let times = [];
  213.     for (const row of table.children) {
  214.         const record = row.firstElementChild.rowSpan == 1 ? row.firstElementChild : row.firstElementChild.nextElementSibling;
  215.         if (timeReg.exec(record.innerHTML)) {
  216.             let begintime = (RegExp.$1.length == 1 ? "0" : "") + RegExp.$1 + RegExp.$2 + "00",
  217.                 endtime = (RegExp.$3.length == 1 ? "0" : "") + RegExp.$3 + RegExp.$4 + "00";
  218.             times.push([begintime, endtime]);
  219.         }
  220.     }
  221.     return times;
  222. }
  223.  
  224. function firstDatetimeOfWeek(week) {
  225.     const FirstDateOfSemester = new Date(FirstdateOfSemester),
  226.         FirstDateOfWeek = new Date(FirstDateOfSemester.getTime() + week * 7 * 24 * 60 * 60 * 1000);
  227.     return dateToDatetime(FirstDateOfWeek);
  228. }
  229.  
  230. function lastDatetimeOfWeek(week) {
  231.     const FirstDatetimeOfSemester = new Date(FirstdateOfSemester),
  232.         LastDatetimeOfWeek = new Date(FirstDatetimeOfSemester.getTime() + (week + 1) * 7 * 24 * 60 * 60 * 1000 - 1);
  233.     return dateToDatetime(LastDatetimeOfWeek)
  234. }
  235.  
  236. function dateToDatetime(date) {
  237.     return ""
  238.         + date.getFullYear()
  239.         + ("0" + (date.getMonth() + 1)).slice(-2)
  240.         + ("0" + date.getDate()).slice(-2)
  241.         + "T"
  242.         + ("0" + date.getHours()).slice(-2)
  243.         + ("0" + date.getMinutes()).slice(-2)
  244.         + ("0" + date.getSeconds()).slice(-2);
  245. }
  246.  
  247. function datetimeToDate(datetime) {
  248.     let date = datetime.slice(0, 4) + "/";
  249.     date += datetime.slice(4, 6) + "/";
  250.     date += datetime.slice(6, 8) + " ";
  251.     date += datetime.slice(9, 11) + ":";
  252.     date += datetime.slice(11, 13) + ":";
  253.     date += datetime.slice(13, 15);
  254.     return new Date(date);
  255. }
  256.  
  257. class iCalendarFormatter {
  258.     static ClassEvent(ClassRecord) {
  259.         let event = "";
  260.         for (const Class of ClassRecord.timeAndPlace) {
  261.             event += "BEGIN:VEVENT\n";
  262.             event += "SUMMARY:" + ClassRecord.name + "\n";
  263.             event += "LOCATION:" + Class.classroom + "\n";
  264.             event += "DTSTART:" + Class.getFirstStartDatetime() + "\n";
  265.             event += "DTEND:" + Class.getFirstEndDatetime() + "\n";
  266.             event += "RRULE:FREQ=WEEKLY;"
  267.                 + "BYDAY=" + Class.weekday + "\n";
  268.             event += "RDATE;VALUE=PERIOD:"
  269.             for (const week of Class.weeks) {
  270.                 event += week[0] + "/" + week[1] + ",";
  271.             } event = event.slice(0, -1) + "\n";
  272.             event += "END:VEVENT\n";
  273.         }
  274.         return event;
  275.     }
  276.     static ClassesCalendar(Classes) {
  277.         let calendar = "BEGIN:VCALENDAR\nVERSION:2.0\n";
  278.         for (const Class of Classes) {
  279.             calendar += iCalendarFormatter.ClassEvent(Class);
  280.         }
  281.         calendar += "END:VCALENDAR\n";
  282.         return calendar;
  283.     }
  284. }
  285.  
  286. function includeFileSaver() {
  287.     (function (global, factory) {
  288.         if (typeof define === "function" && define.amd) {
  289.             define([], factory);
  290.         } else if (typeof exports !== "undefined") {
  291.             factory();
  292.         } else {
  293.             var mod = {
  294.                 exports: {}
  295.             };
  296.             factory();
  297.             global.FileSaver = mod.exports;
  298.         }
  299.     })(this, function () {
  300.         "use strict";
  301.  
  302.         /*
  303.         * FileSaver.js
  304.         * A saveAs() FileSaver implementation.
  305.         *
  306.         * By Eli Grey, http://eligrey.com
  307.         *
  308.         * License : https://github.com/eligrey/FileSaver.js/blob/master/LICENSE.md (MIT)
  309.         * source  : http://purl.eligrey.com/github/FileSaver.js
  310.         */
  311.         // The one and only way of getting global scope in all environments
  312.         // https://stackoverflow.com/q/3277182/1008999
  313.         var _global = typeof window === 'object' && window.window === window ? window : typeof self === 'object' && self.self === self ? self : typeof global === 'object' && global.global === global ? global : void 0;
  314.  
  315.         function bom(blob, opts) {
  316.             if (typeof opts === 'undefined') opts = {
  317.                 autoBom: false
  318.             }; else if (typeof opts !== 'object') {
  319.                 console.warn('Deprecated: Expected third argument to be a object');
  320.                 opts = {
  321.                     autoBom: !opts
  322.                 };
  323.             } // prepend BOM for UTF-8 XML and text/* types (including HTML)
  324.             // note: your browser will automatically convert UTF-16 U+FEFF to EF BB BF
  325.  
  326.             if (opts.autoBom && /^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(blob.type)) {
  327.                 return new Blob([String.fromCharCode(0xFEFF), blob], {
  328.                     type: blob.type
  329.                 });
  330.             }
  331.  
  332.             return blob;
  333.         }
  334.  
  335.         function download(url, name, opts) {
  336.             var xhr = new XMLHttpRequest();
  337.             xhr.open('GET', url);
  338.             xhr.responseType = 'blob';
  339.  
  340.             xhr.onload = function () {
  341.                 saveAs(xhr.response, name, opts);
  342.             };
  343.  
  344.             xhr.onerror = function () {
  345.                 console.error('could not download file');
  346.             };
  347.  
  348.             xhr.send();
  349.         }
  350.  
  351.         function corsEnabled(url) {
  352.             var xhr = new XMLHttpRequest(); // use sync to avoid popup blocker
  353.  
  354.             xhr.open('HEAD', url, false);
  355.  
  356.             try {
  357.                 xhr.send();
  358.             } catch (e) { }
  359.  
  360.             return xhr.status >= 200 && xhr.status <= 299;
  361.         } // `a.click()` doesn't work for all browsers (#465)
  362.  
  363.  
  364.         function click(node) {
  365.             try {
  366.                 node.dispatchEvent(new MouseEvent('click'));
  367.             } catch (e) {
  368.                 var evt = document.createEvent('MouseEvents');
  369.                 evt.initMouseEvent('click', true, true, window, 0, 0, 0, 80, 20, false, false, false, false, 0, null);
  370.                 node.dispatchEvent(evt);
  371.             }
  372.         }
  373.  
  374.         var saveAs = _global.saveAs || ( // probably in some web worker
  375.             typeof window !== 'object' || window !== _global ? function saveAs() { }
  376.                 /* noop */
  377.                 // Use download attribute first if possible (#193 Lumia mobile)
  378.                 : 'download' in HTMLAnchorElement.prototype ? function saveAs(blob, name, opts) {
  379.                     var URL = _global.URL || _global.webkitURL;
  380.                     var a = document.createElement('a');
  381.                     name = name || blob.name || 'download';
  382.                     a.download = name;
  383.                     a.rel = 'noopener'; // tabnabbing
  384.                     // TODO: detect chrome extensions & packaged apps
  385.                     // a.target = '_blank'
  386.  
  387.                     if (typeof blob === 'string') {
  388.                         // Support regular links
  389.                         a.href = blob;
  390.  
  391.                         if (a.origin !== location.origin) {
  392.                             corsEnabled(a.href) ? download(blob, name, opts) : click(a, a.target = '_blank');
  393.                         } else {
  394.                             click(a);
  395.                         }
  396.                     } else {
  397.                         // Support blobs
  398.                         a.href = URL.createObjectURL(blob);
  399.                         setTimeout(function () {
  400.                             URL.revokeObjectURL(a.href);
  401.                         }, 4E4); // 40s
  402.  
  403.                         setTimeout(function () {
  404.                             click(a);
  405.                         }, 0);
  406.                     }
  407.                 } // Use msSaveOrOpenBlob as a second approach
  408.                     : 'msSaveOrOpenBlob' in navigator ? function saveAs(blob, name, opts) {
  409.                         name = name || blob.name || 'download';
  410.  
  411.                         if (typeof blob === 'string') {
  412.                             if (corsEnabled(blob)) {
  413.                                 download(blob, name, opts);
  414.                             } else {
  415.                                 var a = document.createElement('a');
  416.                                 a.href = blob;
  417.                                 a.target = '_blank';
  418.                                 setTimeout(function () {
  419.                                     click(a);
  420.                                 });
  421.                             }
  422.                         } else {
  423.                             navigator.msSaveOrOpenBlob(bom(blob, opts), name);
  424.                         }
  425.                     } // Fallback to using FileReader and a popup
  426.                         : function saveAs(blob, name, opts, popup) {
  427.                             // Open a popup immediately do go around popup blocker
  428.                             // Mostly only available on user interaction and the fileReader is async so...
  429.                             popup = popup || open('', '_blank');
  430.  
  431.                             if (popup) {
  432.                                 popup.document.title = popup.document.body.innerText = 'downloading...';
  433.                             }
  434.  
  435.                             if (typeof blob === 'string') return download(blob, name, opts);
  436.                             var force = blob.type === 'application/octet-stream';
  437.  
  438.                             var isSafari = /constructor/i.test(_global.HTMLElement) || _global.safari;
  439.  
  440.                             var isChromeIOS = /CriOS\/[\d]+/.test(navigator.userAgent);
  441.  
  442.                             if ((isChromeIOS || force && isSafari) && typeof FileReader === 'object') {
  443.                                 // Safari doesn't allow downloading of blob URLs
  444.                                 var reader = new FileReader();
  445.  
  446.                                 reader.onloadend = function () {
  447.                                     var url = reader.result;
  448.                                     url = isChromeIOS ? url : url.replace(/^data:[^;]*;/, 'data:attachment/file;');
  449.                                     if (popup) popup.location.href = url; else location = url;
  450.                                     popup = null; // reverse-tabnabbing #460
  451.                                 };
  452.  
  453.                                 reader.readAsDataURL(blob);
  454.                             } else {
  455.                                 var URL = _global.URL || _global.webkitURL;
  456.                                 var url = URL.createObjectURL(blob);
  457.                                 if (popup) popup.location = url; else location.href = url;
  458.                                 popup = null; // reverse-tabnabbing #460
  459.  
  460.                                 setTimeout(function () {
  461.                                     URL.revokeObjectURL(url);
  462.                                 }, 4E4); // 40s
  463.                             }
  464.                         });
  465.         _global.saveAs = saveAs.saveAs = saveAs;
  466.  
  467.         if (typeof module !== 'undefined') {
  468.             module.exports = saveAs;
  469.         }
  470.     });
  471. }
  472.  
  473. chooseSemester()