By esquifit
—
Last update
Nov 15, 2008
—
Installed
29 times.
// ==UserScript==
// @name iCalendar for Deutsche Bahn Grosskundenportal
// @namespace http://esquifit.myopenid.com/
// @description Adds iCalendar buttons for downloading Hinfart and Rückfahrt calendar events
// @include https://grosskunden.bahn.de/grosskunde/buchen/kasse.post;*
// ==/UserScript==
const UNST = XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE;
const FONT = XPathResult.FIRST_ORDERED_NODE_TYPE;
const mainTab_xpath = '//table[contains(@class,"result")]/tbody';
const CRLF = "\n";
/*
The Calendar icon is taken from Mark James' "Silk Icons" free icons collection:
http://www.famfamfam.com/ (c) by Mark James, Creative Commons Attribution 2.5
License available under: http://creativecommons.org/licenses/by/2.5/
Converted to data: pseudo-protocol with the aid of "The data URL Kitchen"
available under http://software.hixie.ch/utilities/cgi/data/data
(c) 2003-2006 by Ian Hickson
*/
const CAL_ICON = "data:image/png;base64," +
"iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8%2F9hAAAABGdBTUEAAK%2FINwWK6QAAABl0RVh0" +
"U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAJlSURBVDjLpZNbaM9hGMc%2Fv8NsTqF2yMhZKI" +
"exmpFyRZIiblwouZDauLYoTVEryg2uXIoIOUU5zJkh4e9QDmtJbWxrbUzz%2F72%2F9%2Fm6%2BP3HLs" +
"lbT9%2F3ufm%2Bn%2Ff7Pm8gif9ZMcDxe717JLZ62UQzwxukZnhveBOptyHl8anwZk%2F3b5pZEwOYtG" +
"NDzejSfzm58dTH%2Bb8JvFkpwMizdSCBT8E8OJftkzy4BPIOnONHQzPO%2BeIhBoM5CCrLwNKslBZM8u" +
"DykCbwtgMAl%2Fo%2FGXhvBYMA2rtAlpGYZSR%2BUIGKCgCSggGSOHy1Q%2F0DTifufZUknbr%2FRZJ0" +
"%2BmHWn3mU9edbMu3qG9DmQ08lKSNw3jCJOIKzjzqJopBzLZ3EEVx40smDr%2Fu4e96QGUXPGpkzYQSJ" +
"ywjCwSsIiKOADUvKiUNYX1tOUQhra8oJg4hZ02cQhhGrqyuyp03tTwbOGzKIQ7j8rIsn3Qd4fEVIIn6%" +
"2BkzAMaH35Fn37wbZD68gnCUl%2BEbAkI3CpIYmiCNZUlwEwbfIUgiBg1cIyJqbzGFPiWbl8GXUb66mq" +
"nkrJ2IvUbq88GEI2dQBRGHDjZTcAbZ8%2BERDQnOvm%2BfszVM1egA89C8avwAeO2nlLAeqRxK7j79Tz" +
"Pa%2FmXJck6darTG8XdM3uhbry%2BpiGrou5I1pcP17h7wwk5k4aRUfPANMrhtP2pZ8J44bx7nMfff29" +
"vGl%2FSNP1LQA0XdtCa2cO4GdhkPRg78kPVYm3kS71uNTjU8N5I%2FUpxSWracndZOn8ZVx6dZRhQcz9" +
"F3cAjgR%2F%2B51rt1c2AXXAaOA7cLTlcHvDL6y6kIpO9lqsAAAAAElFTkSuQmCC";
var main_tab = document.evaluate(mainTab_xpath,document,null,FONT,null).singleNodeValue;
var tab = dom2e4x( main_tab );
var i = 1;
// TODO: exception handling in access to e4x objects?
while (tab.TR[i]){ // while rows are available
// event rows
var event = i;
// initialize event data
var summary = '';
var location = '';
var description = '';
var timestamp = '';
var uid = '';
var timestamp = '';
// START TIME
// TODO: exception handling in access to e4x objects?
var event_day, event_time, time_start, time_end;
event_day = tab.TR[i].TD[2].text()[0].toString().replace(/\D*(\d+)\.(\d+)\.(\d+).*/, "$3$2$1");
event_time = tab.TR[i].TD[3].text()[0].toString().replace( /\D*(\d+):(\d+).*/, "$1$2"+"00");
time_start = event_day + 'T' + event_time;
// LOCATION
// TODO: exception handling in access to e4x objects?
location = tab.TR[i].TD[1].text()[0];
// TIMESTAMP (UTC)
var now = new Date();
var year = now.getUTCFullYear();
var month = now.getUTCMonth();
var day = now.getUTCDate();
var hours = now.getUTCHours();
var mins = now.getUTCMinutes();
var secs = now.getUTCSeconds();
timestamp = year +
(month < 10 ? '0' + month : month.toString() ) +
(day < 10 ? '0' + day : day.toString() ) + 'T' +
(hours < 10 ? '0' + hours : hours.toString() ) +
(mins < 10 ? '0' + mins : mins.toString() ) +
(secs < 10 ? '0' + secs : secs.toString() ) + 'Z';
// UID
uid = 'iCal_DBahn-' + timestamp;
// DESCRIPTION
do{
// TODO: exception handling in access to e4x objects?
var desc = tab.TR[i].TD[4].text()[0] + "\\n" + // Zug ID
tab.TR[i].TD[1].text()[0] + " " + tab.TR[i].TD[3].text()[0] + "\\n" + // München ab 06:00
tab.TR[i].TD[1].text()[1] + " " + tab.TR[i].TD[3].text()[1] + "\\n" + // Nürnberg an 07:24
tab.TR[i].TD[5].text()[0] + "\\n \\n"; // Reservierung ...
description = description.concat(desc);
i++;
// TODO: exception handling in access to e4x objects?
} while(tab.TR[i] && tab.TR[i].TD[0] == ''); // next row in same loop only if first cell is empty
// END TIME
// TODO: exception handling in access to e4x objects?
event_day = tab.TR[i-1].TD[2].text()[0].toString().replace(/\D*(\d+)\.(\d+)\.(\d+).*/, "$3$2$1");
event_time_ab = tab.TR[i-1].TD[3].text()[0].toString().replace( /\D*(\d+):(\d+).*/, "$1$2"+"00");
event_time_an = tab.TR[i-1].TD[3].text()[1].toString().replace( /\D*(\d+):(\d+).*/, "$1$2"+"00");
// if the last traject goes through midnight, arrival date is one day greater
if(event_time_an < event_time_ab) event_day = increment(event_day);
time_end = event_day + 'T' + event_time_an;
// SUMMARY
// TODO: exception handling in access to e4x objects?
summary = 'Reiseziel: ' + tab.TR[i-1].TD[1].text()[1];
// Create event url
var cal_string = getCalendarString(time_start, time_end, summary, location, description, uid, timestamp);
// Create clickable calendar icon
var cal_button = make_calendar( cal_string);
target = main_tab.rows[event].cells[0];
target.insertBefore(cal_button,target.firstChild);
}
function getCalendarString(time_start, time_end, summary, location, description, uid, timestamp) {
//GM_log( [time_start, time_end, summary, location, description, uid, timestamp].join("\n") );
description = iCalcFold(description);
// build RFC 2445 conform calendar object
var cal_string = [
"BEGIN:VCALENDAR"
, "VERSION:2.0" // required for reminder to work!
, "METHOD:PUBLISH" // new appointment
, "BEGIN:VEVENT"
// general data
, "DTSTART:" + time_start
, "DTEND:" + time_end
, "SUMMARY:" + summary
, "LOCATION:" + location
, "DESCRIPTION:" + description
, "UID:" + uid // mandatory
, "SEQUENCE:0" // initial appointment
, "DTSTAMP:" + timestamp // ex.: 20060707T143451Z (this is mandatory)
// reminder (one hour before start)
, "BEGIN:VALARM"
, "TRIGGER:-PT60M" // 60 min. before start
, "ACTION:DISPLAY" // other values: "AUDIO","EMAIL","PROCEDURE"
, "DESCRIPTION:Hey!" // ???
, "END:VALARM"
, "END:VEVENT"
,
"END:VCALENDAR"].join(CRLF);
// generate URL pointing to the calendar object (MIME type is text/calendar; see RFC 2445)
// Content-Type 'text/x-vCalendar;' is also used sometimes.
return "data:text/calendar;charset=utf-8," + encodeURIComponent(cal_string);
}
function make_calendar( cal_url){
var xmlParser = new DOMParser;
var icon_span = <span xmlns="http://www.w3.org/1999/xhtml" />;
icon_span.link = <a style="text-decoration:none;" href={cal_url}>
<img src={CAL_ICON} title='Kalender hinzufügen'/>
</a>;
var dom_tree_button = xmlParser.parseFromString(icon_span.toXMLString(),'text/xml'); // [object XMLDocument]
return dom_tree_button.firstChild; // [object HTMLUnknownElement]
}
function iCalcFold(string) {
// TODO: fold according to RFC 2445
// Content lines are delimited by a line break,
// which is a CRLF sequence (US-ASCII decimal 13, followed by US-ASCII decimal 10).
//
// Lines of text SHOULD NOT be longer than 75 octets, excluding the line break.
// Long content lines SHOULD be split into a multiple line
// representations using a line "folding" technique. That is, a long
// line can be split between any two characters by inserting a CRLF
// immediately followed by a single linear white space character (i.e.,
// SPACE, US-ASCII decimal 32 or HTAB, US-ASCII decimal 9).
// Any sequence of CRLF followed immediately by a single linear white space character
// is ignored (i.e., removed) when processing the content type.
return string;
}
function dom2e4x( doc ){
var serializer = new XMLSerializer();
return new XML(serializer.serializeToString(doc)); // now things like doc.td[1].text() are possible :)
}
// increment a date in format YYYYMMDD on one day
function increment(date){
var date_obj = new Date();
// For the Date objet, first day of the month is 0. Sigh...
date_obj.setFullYear(date.substring(0,4), parseInt(date.substring(4,6)) - 1 , date.substring(6,8) );
date_obj = new Date (date_obj.getTime() + 86400000);
var year = date_obj.getFullYear();
var month = date_obj.getMonth() + 1 ; if(month <10) month = '0' + month.toString();
var day = date_obj.getDate(); if(day<10) day = '0' + day.toString();
return [ year, month, day ].join('');
}
