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HLJU Class Schedule

Export your classes to a ics file.

  1. // ==UserScript==
  2. // @name        HLJU Class Schedule
  3. // @namespace   https://fuyuhin.me
  4. // @description Export your classes to a ics file.
  5. // @include     http://*.hlju.edu.cn/xsxk/index.xk
  6. // @version     0.2
  7. // @grant       none
  8. // ==/UserScript==
  9. function get_first_week_num(week_sequence){
  10.     return week_sequence.indexOf('1') + 1;
  11. }
  12.  
  13. function get_last_week_num(week_sequence){
  14.     return week_sequence.lastIndexOf('1') + 1;
  15. }
  16.  
  17. function date_to_ics_format_string(date) {
  18.     var s = '';
  19.     s = s + date.getFullYear(); 
  20.     var month = date.getMonth() + 1;
  21.     if (month > 9) { 
  22.         s = s + month.toString();
  23.     }
  24.     else{
  25.         s = s + '0' + month.toString();
  26.     }
  27.     var d = date.getDate();
  28.     if (d > 9) {
  29.         s = s + d.toString();
  30.     }
  31.     else{
  32.         s = s + '0' + d.toString();
  33.     }
  34.     s = s + 'T';
  35.     var hour = date.getHours();
  36.     if (hour > 9) {
  37.         s = s + hour.toString();
  38.     }
  39.     else{
  40.         s = s + '0' + hour.toString();
  41.     }
  42.     var minute = date.getMinutes();
  43.     if (minute > 9) {
  44.         s = s + minute.toString();
  45.     }
  46.     else{
  47.         s = s + '0' + minute.toString();
  48.     }
  49.     s = s + '00';
  50.     return s;
  51. }
  52.  
  53. function get_repead_rule(week_sequence, weekday, until_date)
  54. {
  55.     var week_array = new Array();
  56.     for (var i = 0; i < week_sequence.length; i++) {
  57.         if (week_sequence[i] == '1'){
  58.             week_array.push(i + 1);
  59.         }
  60.     }
  61.     var interval;
  62.     if (week_array[week_array.length - 1] - week_array[0] == week_array.length - 1) {
  63.         interval = '1';
  64.     }
  65.     else{
  66.         interval = '2';
  67.     }
  68.     var byday;
  69.     switch(weekday){
  70.         case '1': byday = 'MO'; break;
  71.         case '2': byday = 'TU'; break;
  72.         case '3': byday = 'WE'; break;
  73.         case '4': byday = 'TH'; break;
  74.         case '5': byday = 'FR'; break;
  75.         case '6': byday = 'SA'; break;
  76.         case '7': byday = 'SU'; break;
  77.     };
  78.     var until = date_to_ics_format_string(until_date);
  79.     return 'RRULE:FREQ=WEEKLY;UNTIL=' + until + 'Z;INTERVAL=' + interval + ';BYDAY=' + byday + ';WKST=SU';
  80. }
  81.  
  82. function lesson_start_time(begin_session){
  83.     switch (begin_session){
  84.         case '1': return 0800;
  85.         case '2': return 0900;
  86.         case '3': return 1020;
  87.         case '4': return 1120;
  88.         case '5': return 1330;
  89.         case '6': return 1430;
  90.         case '7': return 1540;
  91.         case '8': return 1640;
  92.         case '9': return 1830;
  93.         case '10': return 1925;
  94.         case '11': return 2020;
  95.     }
  96. }
  97.  
  98. function lesson_end_time(begin_session){
  99.     switch (begin_session){ 
  100.         case '1': return 0850;
  101.         case '2': return 0950;
  102.         case '3': return 1110;
  103.         case '4': return 1210;
  104.         case '5': return 1420;
  105.         case '6': return 1520;
  106.         case '7': return 1630;
  107.         case '8': return 1730;
  108.         case '9': return 1920;
  109.         case '10': return 2015;
  110.         case '11': return 2110;
  111.     }
  112. }
  113.  
  114. function fuck(week_fuck, weekday_fuck)
  115. {
  116.     var a = 0;
  117.     var b = 0;
  118.     var c = 0;
  119.     var d = 0;
  120.     a = week_fuck - 1;
  121.     b = a * 7;
  122.     c = b + weekday_fuck;
  123.     d = c - 1;
  124.     return d;
  125. }
  126.  
  127. function get_date(week, weekday, time){
  128.     var first_monday = new Date("2017-02-27");
  129.     var days = 0;
  130.     days = fuck(week, parseInt(weekday));
  131.     first_monday.setDate(first_monday.getDate() + days);
  132.     first_monday.setHours(parseInt(time / 100));
  133.     first_monday.setMinutes(parseInt(time % 100));
  134.     first_monday.setSeconds(0);
  135.     return first_monday;
  136. }
  137.  
  138. function Event(class_info){
  139.     this.uid = class_info.jxbid;
  140.     this.summary = class_info.kcm;
  141.     this.teacher = class_info.skjs;
  142.     this.print = function () {
  143.         var ics_vevent = '';
  144.         var lessons = class_info.pkxxList;
  145.         for (var i in lessons) {
  146.             var event_begin = 'BEGIN:VEVENT\r\n';
  147.             var event_end = 'END:VEVENT\r\n';
  148.             var dt_start = get_date(get_first_week_num(lessons[i].zcbh), 
  149.                                     parseInt(lessons[i].skxq), 
  150.                                     lesson_start_time(lessons[i].ksjc));
  151.             var dt_end = get_date(get_first_week_num(lessons[i].zcbh), 
  152.                                   parseInt(lessons[i].skxq), 
  153.                                   lesson_end_time(lessons[i].jsjc));
  154.             ics_vevent = ics_vevent + event_begin + 
  155.                     'DTSTART;TZID=Asia/Shanghai:' + date_to_ics_format_string(dt_start) + '\r\n' +
  156.                     'DTEND;TZID=Asia/Shanghai:' + date_to_ics_format_string(dt_end) + '\r\n' +
  157.                     get_repead_rule(lessons[i].zcbh, lessons[i].skxq, 
  158.                         get_date(get_last_week_num(lessons[i].zcbh), 
  159.                             parseInt(lessons[i].skxq), 
  160.                             lesson_end_time(lessons[i].jsjc))) + '\r\n' +
  161.                     'DTSTAMP:20160822T125937Z\r\n' + 
  162.                     'UID:' + this.uid + i.toString() + '\r\n' +
  163.                     'LOCATION:' + lessons[i].jsmc + '\r\n' + 
  164.                     'DESCRIPTION:' + lessons[i].zcmc + '\r\n' + 
  165.                     'SEQUENCE:0\r\n' + 
  166.                     'STATUS:CONFIRMED\r\n' + 
  167.                     'SUMMARY:' + this.summary + ' ' + this.teacher + '\r\n' +
  168.                     'TRANSP:OPAQUE\r\n' + 
  169.                     event_end;
  170.         }
  171.         return ics_vevent;
  172.     }
  173. }
  174.  
  175. var ics_vevents = '';
  176. for (var key in yxJxbList){
  177.     if (yxJxbList[key].pkxxList[0].jsmc !== '') {
  178.         var event = new Event(yxJxbList[key]);
  179.         ics_vevents = ics_vevents + event.print();
  180.     }
  181. }
  182. var event_begin = 'BEGIN:VCALENDAR\r\nPRODID:Fuyuhin.me\r\nVERSION:2.0\r\nCALSCALE:GREGORIAN\r\nMETHOD:PUBLISH\r\nX-WR-CALNAME:HLJU Class Schedule\r\nX-WR-TIMEZONE:Asia/Shanghai\r\nBEGIN:VTIMEZONE\r\nTZID:Asia/Shanghai\r\nX-LIC-LOCATION:Asia/Shanghai\r\nBEGIN:STANDARD\r\nTZOFFSETFROM:+0800\r\nTZOFFSETTO:+0800\r\nTZNAME:CST\r\nDTSTART:19700101T000000\r\nEND:STANDARD\r\nEND:VTIMEZONE\r\n';
  183. var event_end = 'END:VCALENDAR';
  184. var ics_content = event_begin + ics_vevents + event_end;
  185. // console.log(ics_content);
  186. // alert(ics_content);
  187.  
  188. function download(fileName, blob){
  189.     var aLink = document.createElement('a');
  190.     var evt = document.createEvent("MouseEvents");
  191.     evt.initEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
  192.     aLink.download = fileName;
  193.     aLink.href = URL.createObjectURL(blob);
  194.     aLink.dispatchEvent(evt);
  195. }
  196.  
  197.  
  198. function stringToBlob(text) {
  199.     var blob = new Blob([text], {"type":'text/plain; charset="UTF-8"'});
  200.     return blob;
  201. }
  202.  
  203. var blob = stringToBlob(ics_content);
  204. download('Class.ics', blob);