/usr/share/php/Horde/Icalendar/Vtimezone.php is in php-horde-icalendar 2.1.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 | <?php
/**
* Class representing vTimezones.
*
* Copyright 2003-2016 Horde LLC (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.horde.org/licenses/lgpl21.
*
* @author Mike Cochrane <mike@graftonhall.co.nz>
* @category Horde
* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
* @package Icalendar
*/
class Horde_Icalendar_Vtimezone extends Horde_Icalendar
{
/**
* The component type of this class.
*
* @var string
*/
public $type = 'vTimeZone';
/**
* TODO
*
* @return TODO
*/
public function exportvCalendar()
{
return $this->_exportvData('VTIMEZONE');
}
/**
* Parses child components of vTimezone component.
*
* Returns an array with the exact time of the time change as well as the
* 'from' and 'to' offsets around the change. Time is arbitrarily based on
* UTC for comparison.
*
* @param Horde_Icalendar_Standard|Horde_Icalendar_Daylight $child
* A timezone component.
* @param integer $year
* The latest year we are interested in.
*
* @return array A list of hashes with "time", "from", and "to" elements.
*/
public function parseChild($child, $year)
{
$result['time'] = $result['end'] = 0;
try {
$t = $child->getAttribute('TZOFFSETFROM');
} catch (Horde_Icalendar_Exception $e) {
return array();
}
$result['from'] = ($t['hour'] * 60 * 60 + $t['minute'] * 60) * ($t['ahead'] ? 1 : -1);
try {
$t = $child->getAttribute('TZOFFSETTO');
} catch (Horde_Icalendar_Exception $e) {
return array();
}
$result['to'] = ($t['hour'] * 60 * 60 + $t['minute'] * 60) * ($t['ahead'] ? 1 : -1);
try {
$start = $child->getAttribute('DTSTART');
} catch (Horde_Icalendar_Exception $e) {
return array();
}
if (!is_int($start)) {
return array();
}
$start = getdate($start);
if ($start['year'] > $year) {
return array();
}
$results = array();
try {
$rdates = $child->getAttributeValues('RDATE');
foreach ($rdates as $rdate) {
if ($rdate['year'] == $year || $rdate['year'] == $year - 1) {
$result['time'] = $result['end'] = gmmktime(
$start['hours'], $start['minutes'], $start['seconds'],
$rdate['month'], $rdate['mday'], $rdate['year']
);
$results[] = $result;
}
}
} catch (Horde_Icalendar_Exception $e) {
}
try {
$rrules = $child->getAttribute('RRULE');
} catch (Horde_Icalendar_Exception $e) {
if (!$results) {
$result['time'] = $result['end'] = $start[0];
$results[] = $result;
}
return $results;
}
$rrules = explode(';', $rrules);
foreach ($rrules as $rrule) {
$t = explode('=', $rrule);
switch ($t[0]) {
case 'FREQ':
if ($t[1] != 'YEARLY') {
return array();
}
break;
case 'INTERVAL':
if ($t[1] != '1') {
return array();
}
break;
case 'BYMONTH':
$month = intval($t[1]);
break;
case 'BYDAY':
$len = strspn($t[1], '1234567890-+');
if ($len == 0) {
return array();
}
$weekday = substr($t[1], $len);
$weekdays = array(
'SU' => 0,
'MO' => 1,
'TU' => 2,
'WE' => 3,
'TH' => 4,
'FR' => 5,
'SA' => 6
);
$weekday = $weekdays[$weekday];
$which = intval(substr($t[1], 0, $len));
break;
case 'UNTIL':
$result['end'] = intval(substr($t[1], 0, 4));
break;
}
}
if (empty($month) || !isset($weekday)) {
return array();
}
// Get the timestamp for the first day of $month.
$when = gmmktime($start['hours'], $start['minutes'], $start['seconds'],
$month, 1, $year);
// Get the day of the week for the first day of $month.
$first_of_month_weekday = intval(gmstrftime('%w', $when));
// Go to the first $weekday before first day of $month.
if ($weekday >= $first_of_month_weekday) {
$weekday -= 7;
}
$when -= ($first_of_month_weekday - $weekday) * 60 * 60 * 24;
// If going backwards go to the first $weekday after last day
// of $month.
if ($which < 0) {
do {
$when += 60 * 60 * 24 * 7;
} while (intval(gmstrftime('%m', $when)) == $month);
}
// Calculate $weekday number $which.
$when += $which * 60 * 60 * 24 * 7;
$result['time'] = $when;
$results[] = $result;
return $results;
}
}
|