There are 5 previous versions of this script.
// ==UserScript==
// @name Google Calendar from Evite
// @namespace http://www.indelible.org/
// @description Replaces the default calendar link in Evite invitations with a Google Calendar link instead.
// @author Jon Parise
// @version 1.5
// @include http://www.evite.com/pages/invite/*
// ==/UserScript==
function unwrap(e)
{
// The desired content may be wrapped in a <div> element.
var divs = e.getElementsByTagName('div');
if (divs.length > 0) {
return divs[0].innerHTML;
}
return e.innerHTML;
}
function getMonth(name)
{
switch (name) {
case 'January': return '01';
case 'February': return '02';
case 'March': return '03';
case 'April': return '04';
case 'May': return '05';
case 'June': return '06';
case 'July': return '07';
case 'August': return '08';
case 'September': return '09';
case 'October': return '10';
case 'November': return '11';
case 'December': return '12';
}
return '00';
}
function getDateTime(text)
{
// e.g. December 31, 7:00PM
var fields = text.split(' ', 3);
// e.g. December 31,
var year = new Date().getUTCFullYear();
var month = getMonth(fields[0]);
var day = fields[1].slice(0, -1);
// e.g. 7:00PM
var time = fields[2].split(':');
var hour = parseInt(time[0]);
var minute = time[1].substr(0, 2);
// Convert the hour field to 24-hour time if necessary.
if (hour == 12 && time[1].search(/AM/) != -1) {
hour = 0;
} else if (hour < 12 && time[1].search(/PM/) != -1) {
hour += 12;
}
hour = String(hour);
// Zero-fill the day and hour fields if necessary.
if (day.length == 1) day = '0' + day;
if (hour.length == 1) hour = '0' + hour;
return [year + month + day, hour + minute + '00'];
}
function parseDates(e)
{
// e.g. December 31, 7:00PM
dates = e.innerHTML.match(/(\w+ \d+, )?\d+:\d+(?:AM|PM)/g);
// We handle events with only a "start" time (in which case the "end" time
// is set to the start time) or both a explicit "start" and "end" time.
if (dates.length == 1) {
dates[0] = getDateTime(dates[0]);
dates[1] = dates[0];
} else if (dates.length == 2) {
// Handle the case where the start and end times are on the same day.
// Evite only prints the day once in this case, so we borrow the date
// portion from the start time and prepend it to the end time.
var dayRE = /\w+ \d+, /;
if (!dayRE.test(dates[1])) {
day = dayRE.exec(dates[0]);
dates[1] = day + dates[1];
}
dates[0] = getDateTime(dates[0]);
dates[1] = getDateTime(dates[1]);
// Compensate for events spanning the end of the year.
end = parseInt(dates[1][0]);
if (end < parseInt(dates[0][0])) {
end += 10000;
dates[1][0] = String(end);
}
}
// Lastly, format the UTC dates as Google expects them.
var start = dates[0][0] + 'T' + dates[0][1];
var end = dates[1][0] + 'T' + dates[1][1];
return [start, end];
}
function parseLocation(e)
{
var text = unwrap(e);
text = text.replace(/<br\s*\/?>/gi, ', ');
text = text.split("\n", 1)[0];
// Attempt to separate the location string into a place name and an
// address. We split the string into comma-delimited parts, and if the
// first part doesn't start with a number, it is used as the place name.
//
// Unfortunately, this fails to work for places whose names start with
// numbers. Fixing that probably involves considering the second part and
// checking if it also starts with a number, in which case the second part
// is probably the start of the address. That may be more error prone,
// however, and the current approach degrades safely.
parts = text.split(/\s?,\s?/);
if (parts.length > 1 && parts[0].match(/^\D/)) {
text = parts.slice(1).join(', ');
text += ' (' + parts[0] + ')';
}
return text;
}
function makeGoogleCalendarLink()
{
// Event Title
var title = document.getElementsByTagName('h1');
if (title) {
title = title[0].innerHTML;
}
// Event Details
var detailsIndex = -1, details, loc;
var whenRE = /When:/, locationRE = /Location:/, phoneRE = /Phone:/;
var tds = document.getElementsByTagName('td');
for (var i = 0; i < tds.length; ++i) {
if (tds[i].className != 'detailsName')
continue;
var text = tds[i].innerHTML;
if (locationRE.test(text)) {
loc = parseLocation(tds[++i]);
} else if (whenRE.test(text)) {
dates = parseDates(tds[++i]);
detailsIndex = i + 1;
} else if (phoneRE.test(text)) {
detailsIndex = i + 2;
}
}
var details = '';
if (detailsIndex != -1) {
details = unwrap(tds[detailsIndex]);
// Trim off any leading whitespace.
details = details.replace(/^\s*/, '');
// We need to limit the length of the details string to avoid
// exceeding the maximum accepted length of the GET request.
if (details.length > 1000) {
details = details.substr(0, 1000);
details += '...';
}
// Add some space between the details and the appending Evite link.
details += "\n\n";
}
details += document.location;
// http://www.google.com/googlecalendar/event_publisher_guide_detail.html
return 'http://www.google.com/calendar/event' +
'?action=TEMPLATE&text=' + escape(title) +
'&dates=' + dates[0] + '/' + dates[1] +
'&details=' + escape(details) +
'&location=' + escape(loc) +
'&trp=true&sprop=website:www.evite.com&sprop=name:Evite';
}
// Find the exsting calendar link element.
var calendarRE = /Calendar/;
var link, links = document.getElementsByTagName('a');
for (var i = 0; i < links.length; ++i) {
if (calendarRE.test(links[i].innerHTML)) {
link = links[i];
break;
}
}
// Replace the existing link with our Google Calendar link.
if (link) {
link.innerHTML = 'Add to Google Calendar';
link.setAttribute('href', makeGoogleCalendarLink());
}
