Generates a vCalendar file from PeopleSoft Campus Solutions "my class schedule".

peoplesoft_cs_calendar.js

// ==UserScript==
// @name         Portal Events finder
// @namespace    http://www.bevroren.com/
// @version      0.1
// @description  Transfers events from the portal page to google calendar
// @author       Thomas Nijssen
// @match        https://ais-cs.ucsc.edu/psc/csprd/EMPLOYEE/PSFT_CSPRD/c/SA_LEARNER_SERVICES.SSR_SSENRL_LIST.GBL*
// @match        https://ais-cs.ucsc.edu/psc/csprd/EMPLOYEE/HRMS/c/SA_LEARNER_SERVICES.SSR_SSENRL_LIST.GBL*
// @match        https://my.ucsc.edu/psc/csprd/EMPLOYEE/PSFT_CSPRD/c/SA_LEARNER_SERVICES.SSR_SSENRL_LIST.GBL*
// @match        https://my.ucsc.edu/psc/csprd/EMPLOYEE/HRMS/c/SA_LEARNER_SERVICES.SSR_SSENRL_LIST.GBL*
// @grant        none
// @require		 http://code.jquery.com/jquery.js
// ==/UserScript==

//(function() {
var events = [];
jQuery("tr[id^='trCLASS_MTG_VW']").each(function(i, el) {
	var cname = jQuery(jQuery(el.closest("table.PSGROUPBOXWBO")).find("td")[0]).text().trim().split(" - ");
	var times = parsetimes(jQuery(el.cells[3]).text().trim());
	var daterange = jQuery(el.cells[6]).text().trim().split(" - ");
	var sectionid = jQuery(el.cells[1]).text().trim();
	var sectiontype = jQuery(el.cells[2]).text().trim(); //lecture, discussion, etc
	var room = jQuery(el.cells[4]).text().trim();

	if(!times.start) return null; //like an online class

	events.push({
		classid: cname[0],
		classname: cname[1],
		sectionid: sectionid,
		sectiontype: sectiontype,
		endday: new Date(daterange[1]),
		start: datetimeconv(daterange[0], times.start, times.days[0]),
		end: datetimeconv(daterange[0], times.end, times.days[0]),
		days: times.days,
		room: room
	});
});

//window.prompt("Send this to Thomas:", JSON.stringify(events));
//sendevents(events);
window.myevents = events;
makeical(events);

function titlefmt(e, formatstring) {
	return formatstring.replace(/\*([a-z]+)/g, function() {
		return e[arguments[1]];
	});
}

function icaldatefmt(dobj) {
	var thingy = function(want, i, arr) {
		var f = this["get" + want];
		//console.log(arguments);
		//console.dir(this);
		try {
			var s = f.call(this);
			s += arr[i] == "Month" ? 1 : 0;
			if(("" + s).length == 1) s = "0" + s;
			return s;
		} catch(e) {
			return "OOPS";
		}

	};
	return ["FullYear", "Month", "Date"].map(thingy, dobj).join("") + "T" + ["Hours", "Minutes", "Seconds"].map(thingy, dobj).join("");
}

function makeical(eventslist) {
	var myname = jQuery("*[id*='PERSON_NAME']")[0].textContent.trim();
	var icaltext = ["BEGIN:VCALENDAR", "VERSION:2.0", "CALSCALE:GREGORIAN", "X-NAME:" + myname];
	for(var eventindex in eventslist) {
		var event = eventslist[eventindex];
		if(!event || !event.start) continue;

		icaltext.push("BEGIN:VEVENT");
		icaltext.push("DTSTART:" + icaldatefmt(event.start));
		icaltext.push("DTEND:" + icaldatefmt(event.end));
		icaltext.push("UID:" + ("" + Math.random()).replace("0.", "") + "@" + location.hostname);
		icaltext.push("SUMMARY:" + titlefmt(event, "*classid *sectionid - *sectiontype"));
        event.endday.setHours(23, 59, 59);
		icaltext.push("RRULE:FREQ=WEEKLY;UNTIL=" + icaldatefmt(event.endday) + ";WKST=" + event.days[0] + ";BYDAY=" + event.days.join(","));
		icaltext.push("LOCATION:" + event.room);
		icaltext.push("END:VEVENT");
	}
	icaltext.push("END:VCALENDAR");
	//var icalfile = btoa(icaltext.join("\r\n"));
    var icalfile = encodeURIComponent(icaltext.join("\r\n"));
	//jQuery("#ACE_width > tbody > tr:nth-child(9)").html('<td colspan=3></td><td colspan=3><a href="data:text/calendar;base64,' + icalfile + '">Download</a>');
    jQuery("#ACE_width > tbody > tr:nth-child(9)").html('<td colspan=3></td><td colspan=3><a href="data:text/calendar,' + icalfile + '">Download</a>');
}

function __thing(x, i) {
	if(!x.start) return [];
	var ret = [ jQuery("<input />", { type: "hidden", name: "havethis", value: i }) ];
	for(var prop in x) {
		ret.push(jQuery("<input />", { type: "hidden", name: i + prop, value: x[prop] }));
	}
	return ret;
}


function datetimeconv(day, time, firstday) {
	if(!time) return null; //online classes have no time
	var timeparts = time.match(/(\d+):(\d+)(P|A)/);
	var d = new Date(day);
	var h = parseInt(timeparts[1]);
	d.setHours(parseInt(h) + ((timeparts[3] == "P" && h < 12)? 12 : 0));
	d.setMinutes(parseInt(timeparts[2]));
	
	//set first day to be the right day of the week
	var weekdays = ["SU", "MO", "TU", "WE", "TH", "FR", "SA"];
	var oldday = d.getDay();
	var actualday = weekdays.indexOf(firstday);
	d.setHours(d.getHours() + (24 * (actualday - oldday)));
	return d;
}

function parsetimes(text) {
	var parts = text.split(/\s/);
	var dayparts = parts[0].split("");
	var days = [];
	for(var i = 0; i < dayparts.length; i += 2) {
		days.push(("" + dayparts[i] + dayparts[i + 1]).toUpperCase());
	}
	return {
		days: days,
		start: parts[1],
		end: parts[3]
	};
}
//})();