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Quickly see the .ics calendar file event information directly on your browser without having to download it or add it to any calendars!
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// ==UserScript==
// @name Ics Viewer - ProtonMail
// @namespace http://greasyfork.icu/en/users/670188-hacker09?sort=daily_installs
// @version 2
// @description Quickly see the .ics calendar file event information directly on your browser without having to download it or add it to any calendars!
// @author hacker09
// @include https://mail.protonmail.com/*
// @include https://protonirockerxow.onion/*
// @icon https://protonmail.com/images/favicon.ico
// @require http://greasyfork.icu/scripts/21927-arrive-js/code/arrivejs.js
// @run-at document-end
// @grant none
// ==/UserScript==
(function() {
'use strict';
document.arrive('div.file-preview-text', (async function() { //Create a new async arrive function
if (document.querySelector("div.file-preview-text").innerText.match('BEGIN:VCALENDAR') !== null) //If the file preview is of an .ics file
{ //Starts the if condition
var Emails = []; //Creates a new array
var Attendees = []; //Creates a new array
var Location = ''; //Creates a new blank variable
var Organizer = document.querySelector("div.file-preview-text").innerText.match(/(?<=ORGANIZER;CN=)[^:]+/)[0]; //Saves the Organizer name
var TimeZone = document.querySelector("div.file-preview-text").innerText.match(/DTEND;TZID=(.*):/)[1].trim(); //Saves the TimeZone
var Dates = document.querySelector("div.file-preview-text").innerText.match(/DTEND;TZID=.*:([0-9]*)/)[1].match(/.{1,2}/g); //Saves the event dates
var TimeEnd = document.querySelector("div.file-preview-text").innerText.match(/DTEND;TZID=.*T([0-9]*)/)[1].match(/.{1,2}/g); //Saves the event end time
var TimeStart = document.querySelector("div.file-preview-text").innerText.match(/DTSTART;TZID=.*T([0-9]*)/)[1].match(/.{1,2}/g); //Saves the event start time
if (document.querySelector("div.file-preview-text").innerText.match(/LOCATION;LANGUAGE=.*:(.*\))/) !== null) //If the Location exists
{ //Starts the if condition
Location = '\n\nLocation: ' + document.querySelector("div.file-preview-text").innerText.match(/LOCATION;LANGUAGE=.*:(.*\))/)[1].replaceAll('\\', ''); //Saves the event location
} //Finishes the if condition
document.querySelector("div.file-preview-text").innerText.match(/(?<=RSVP=.*;CN=)[^:]+/g).forEach(el => Attendees.push(el.replaceAll(/\r|\n /g, ''))); //Add each attendee to an array
document.querySelector("div.file-preview-text").innerText.match(/(?<=:mailto:)[^;\\@]+@[^;\\@\r\n]*/g).forEach(el => Emails.push(el.replaceAll(/\r|\n /g, ''))); //Add each attendee email to an array
document.querySelector("div.file-preview-text").innerText = 'Organizer: ' + Organizer + ' (' + Emails[0] + ')\n\nStarts: (YYYY/MM/DD) ' + Dates[0] + Dates[1] + '/' + Dates[2] + '/' + Dates[3] + ' at ' + TimeStart[0] + ':' + TimeStart[1] + ':' + TimeStart[2] + ' (' + TimeZone + ')\n\nEnds: (YYYY/MM/DD) ' + Dates[0] + Dates[1] + '/' + Dates[2] + '/' + Dates[3] + ' at ' + +TimeEnd[0] + ':' + TimeEnd[1] + ':' + TimeEnd[2] + ' (' + TimeZone + ')' + Location; //Show Organizer, Times and Location informations
Attendees.forEach(function(el, i) { //ForEach Attendee
document.querySelector("div.file-preview-text").innerText += '\n\nAttendees: ' + el + ' (' + Emails[i + 1] + ')'; //Show the Attendees names and emails
}); //Finishes the foreach loop
if (document.querySelector("div.file-preview-text").innerText.match(/(?<=DESCRIPTION;LANGUAGE=[^:]*:)[^:]*(?=UID:)/) !== null) //If the Description exists
{ //Starts the if condition
var Description = document.querySelector("div.file-preview-text").innerText.match(/(?<=DESCRIPTION;LANGUAGE=[^:]*:)[^:]*(?=UID:)/)[0].replaceAll(/[\\]{1,2}[rn]? ?|\r|\n ?/g, '').replaceAll(/ /g, ' '); //Saves the event Description
document.querySelector("div.file-preview-text").innerText += '\n\nDescription: ' + Description; //Show the event description
} //Finishes the if condition
} //Finishes the if condition
})); //Finishes the async function
})();