一键导出课表为ics文件
目前為
// ==UserScript==
// @name 课表助手
// @namespace http://tampermonkey.net/
// @version 0.2.2
// @description 一键导出课表为ics文件
// @author Qingao Chai
// @match http://bkjw.whu.edu.cn/stu/stu_index.jsp
// @require https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/1.3.8/FileSaver.min.js
// @grant none
// ==/UserScript==
(function () {
'use strict';
// 窗口加载完成调用函数
window.onload = function () {
// 获取main-->page_iframe-->iframe0
var page_iframe = document.getElementById("page_iframe");
if (page_iframe === null || typeof page_iframe === "undefined") return;
var iframe0 = page_iframe.contentDocument.getElementById("iframe0");
// 非课表页面直接return
if (iframe0 === null || typeof iframe0 === "undefined") return;
if (iframe0.getAttribute("src").search("/servlet/Svlt_QueryStuLsn") == -1) return;
// 获取当前周，因为只有周历模式才有数据，这里利用ajax请求获取页面并解析当前周
if (typeof window.currentWeek === "undefined") {
var form = $(iframe0.contentDocument).find("form")[0];
if (typeof form !== "undefined") {
$.ajax({
cache: true,
type: "POST",
url: "/servlet/Svlt_QueryStuLsn",
data: $(form).serialize(),
async: false,
error: function (request) {
console.log("Connection error:" + request.error);
},
success: function (data) {
var parser = new DOMParser();
var htmlDoc = parser.parseFromString(data, "text/html");
window.currentWeek = parseInt($(htmlDoc.getElementById("thead_title")).find("span")[0].getAttribute("data-lang-args").split('~')[3]);
}
});
$.ajax({
cache: true,
type: "POST",
url: "../stu/stu_course_parent.jsp",
data: $(form).serialize(),
async: false
});
}
}
// 添加按钮"保存ics"
var buttons = iframe0.contentDocument.getElementsByName("submit");
if (buttons === null || typeof buttons === "undefined") return;
if (buttons.length !== 1) return;
var button = buttons[0];
button.outerHTML += '<input type="button" onclick="save()" style="color: #FFF;width: 63px;height: 23px;padding: 0 10px;border: 0;cursor: pointer;margin-left: 10px;border: 1px solid lightgrey;border-radius: 4px;background-image: linear-gradient(#008CDD, #1A55A2);" name="submit" value="保存ics">';
// 设置上课时间及下课时间
window.class_start = [[], [8, 0], [8, 50], [9, 50], [10, 40], [11, 30], [14, 5], [14, 55], [15, 45], [16, 40], [17, 30], [18, 30], [19, 20], [20, 10]];
window.class_time = 45;
window.weekToNum = { "日": 0, "一": 1, "二": 2, "三": 3, "四": 4, "五": 5, "六": 6 }
// 添加按钮操作，核心部分
iframe0.contentWindow.save = function () {
if (navigator.userAgent.indexOf('MISE') > -1 && navigator.userAgent.indexOf('MSIE 10') == -1) {
alert('不支持的浏览器');
return;
}
var SEPARATOR = (navigator.appVersion.indexOf('Win') !== -1) ? '\r\n' : '\n';
var calendar_start = [
'BEGIN:VCALENDAR',
'VERSION:2.0',
'PRODID:Curriculum-to-iCalendar'
].join(SEPARATOR);
var calendar_end = SEPARATOR + 'END:VCALENDAR' + SEPARATOR;
var calendarEvents = [];
// 获取到课程表
var iframe0 = document.getElementById("page_iframe").contentDocument.getElementById("iframe0");
var table = iframe0.contentDocument.getElementsByTagName("table")[0];
var rows = table.rows.length;
var year = $(iframe0.contentDocument).find("select")[0].value;
var term = $(iframe0.contentDocument).find("select")[1].value;
var toString = function (date) {
return date.toISOString().split(/-|:|[.]/).slice(0, 4).join("") + "00Z";
}
// 逐行添加event至cal
for (let i = 1; i < rows; i++) {
var courseName = table.rows[i].cells[1].innerText;
var teacherName = table.rows[i].cells[5].innerText;
var timeAddress = table.rows[i].cells[9].innerText
if (courseName != "" && timeAddress != "") {
var events = timeAddress.split(' ').filter(n => n != "");
for (let j = 0; j < events.length; j++) {
//周一:1-11周,每1周;1-2节,3区,附3-401 ==> [一,1-11,1,1-2,3区,附3-401]
var informations = events[j].split(/周,每|周|节,|:|,|;/).filter(n => n != "");
var description = "第" + events[j].split(";")[1] + " " + teacherName;
var weekDay = weekToNum[informations[0]];
var startWeek = parseInt(informations[1].split("-")[0]);
var endWeek = parseInt(informations[1].split("-")[1]);
var interval = parseInt(informations[2]);
var startTime = class_start[parseInt(informations[3].split('-')[0])];
var endTime = class_start[parseInt(informations[3].split('-')[1])];
var address = [informations[4], informations[5], teacherName].join(" ");
var startDate = new Date(),endDate=new Date(),untilDate=new Date();
startDate.setDate(startDate.getDate() - startDate.getDay() - (currentWeek - startWeek) * 7 + weekDay);
startDate.setHours(startTime[0], startTime[1], 0, 0);
endDate.setDate(endDate.getDate() - endDate.getDay() - (currentWeek - startWeek) * 7 + weekDay);
endDate.setHours(endTime[0],endTime[1]+class_time);
untilDate.setDate(untilDate.getDate() - untilDate.getDay() + (endWeek - currentWeek) * 7 + weekDay + 1);
untilDate.setHours(endTime[0],endTime[1]+class_time);
calendarEvents.push([
'BEGIN:VEVENT',
'DTSTAMP:' + toString(new Date()),
'UID:' + calendarEvents.length + '@' + 'https://chaiqingao.github.io/',
'SUMMARY:' + courseName,
'DTSTART:' + toString(startDate),
'DTEND:' + toString(endDate),
'RRULE:FREQ=WEEKLY;UNTIL=' + toString(untilDate) + ';INTERVAL=' + interval,
'LOCATION:' + address,
'DESCRIPTION:' + description,
'END:VEVENT'
].join(SEPARATOR));
}
}
}
//保存
if (calendarEvents.length < 1) {
alert('课表里没课哦~😆');
} else {
var fileName = year + "学年第" + term + "学期.ics";
var calendar = calendar_start + SEPARATOR + calendarEvents.join(SEPARATOR) + calendar_end;
var blob;
if (navigator.userAgent.indexOf('MSIE 10') === -1) { // chrome or firefox
blob = new Blob([calendar]);
} else { // ie
var bb = new BlobBuilder();
bb.append(calendar);
blob = bb.getBlob('text/x-vCalendar;charset=' + document.characterSet);
}
saveAs(blob, fileName);
}
}
};
// 保证页面刷新后重新执行
setInterval(onload, 50);
})();
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