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Initial Release of the calendar plugin
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Tobias Hößl
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commit
7115197a33
561 changed files with 189494 additions and 0 deletions
260
dav/SabreDAV/lib/Sabre/VObject/Property/DateTime.php
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260
dav/SabreDAV/lib/Sabre/VObject/Property/DateTime.php
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<?php
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/**
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* DateTime property
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*
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* This element is used for iCalendar properties such as the DTSTART property.
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* It basically provides a few helper functions that make it easier to deal
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* with these. It supports both DATE-TIME and DATE values.
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*
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* In order to use this correctly, you must call setDateTime and getDateTime to
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* retrieve and modify dates respectively.
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*
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* If you use the 'value' or properties directly, this object does not keep
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* reference and results might appear incorrectly.
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*
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* @package Sabre
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* @subpackage VObject
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* @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
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* @author Evert Pot (http://www.rooftopsolutions.nl/)
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* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
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*/
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class Sabre_VObject_Property_DateTime extends Sabre_VObject_Property {
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/**
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* Local 'floating' time
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*/
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const LOCAL = 1;
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/**
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* UTC-based time
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*/
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const UTC = 2;
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/**
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* Local time plus timezone
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*/
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const LOCALTZ = 3;
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/**
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* Only a date, time is ignored
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*/
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const DATE = 4;
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/**
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* DateTime representation
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*
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* @var DateTime
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*/
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protected $dateTime;
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/**
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* dateType
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*
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* @var int
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*/
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protected $dateType;
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/**
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* Updates the Date and Time.
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*
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* @param DateTime $dt
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* @param int $dateType
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* @return void
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*/
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public function setDateTime(DateTime $dt, $dateType = self::LOCALTZ) {
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switch($dateType) {
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case self::LOCAL :
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$this->setValue($dt->format('Ymd\\THis'));
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$this->offsetUnset('VALUE');
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$this->offsetUnset('TZID');
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$this->offsetSet('VALUE','DATE-TIME');
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break;
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case self::UTC :
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$dt->setTimeZone(new DateTimeZone('UTC'));
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$this->setValue($dt->format('Ymd\\THis\\Z'));
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$this->offsetUnset('VALUE');
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$this->offsetUnset('TZID');
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$this->offsetSet('VALUE','DATE-TIME');
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break;
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case self::LOCALTZ :
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$this->setValue($dt->format('Ymd\\THis'));
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$this->offsetUnset('VALUE');
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$this->offsetUnset('TZID');
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$this->offsetSet('VALUE','DATE-TIME');
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$this->offsetSet('TZID', $dt->getTimeZone()->getName());
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break;
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case self::DATE :
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$this->setValue($dt->format('Ymd'));
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$this->offsetUnset('VALUE');
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$this->offsetUnset('TZID');
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$this->offsetSet('VALUE','DATE');
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break;
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default :
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throw new InvalidArgumentException('You must pass a valid dateType constant');
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}
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$this->dateTime = $dt;
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$this->dateType = $dateType;
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}
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/**
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* Returns the current DateTime value.
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*
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* If no value was set, this method returns null.
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*
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* @return DateTime|null
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*/
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public function getDateTime() {
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if ($this->dateTime)
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return $this->dateTime;
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list(
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$this->dateType,
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$this->dateTime
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) = self::parseData($this->value, $this);
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return $this->dateTime;
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}
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/**
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* Returns the type of Date format.
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*
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* This method returns one of the format constants. If no date was set,
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* this method will return null.
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*
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* @return int|null
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*/
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public function getDateType() {
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if ($this->dateType)
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return $this->dateType;
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list(
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$this->dateType,
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$this->dateTime,
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) = self::parseData($this->value, $this);
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return $this->dateType;
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}
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/**
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* Parses the internal data structure to figure out what the current date
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* and time is.
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*
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* The returned array contains two elements:
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* 1. A 'DateType' constant (as defined on this class), or null.
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* 2. A DateTime object (or null)
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*
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* @param string|null $propertyValue The string to parse (yymmdd or
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* ymmddThhmmss, etc..)
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* @param Sabre_VObject_Property|null $property The instance of the
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* property we're parsing.
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* @return array
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*/
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static public function parseData($propertyValue, Sabre_VObject_Property $property = null) {
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if (is_null($propertyValue)) {
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return array(null, null);
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}
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$date = '(?P<year>[1-2][0-9]{3})(?P<month>[0-1][0-9])(?P<date>[0-3][0-9])';
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$time = '(?P<hour>[0-2][0-9])(?P<minute>[0-5][0-9])(?P<second>[0-5][0-9])';
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$regex = "/^$date(T$time(?P<isutc>Z)?)?$/";
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if (!preg_match($regex, $propertyValue, $matches)) {
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throw new InvalidArgumentException($propertyValue . ' is not a valid DateTime or Date string');
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}
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if (!isset($matches['hour'])) {
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// Date-only
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return array(
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self::DATE,
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new DateTime($matches['year'] . '-' . $matches['month'] . '-' . $matches['date'] . ' 00:00:00'),
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);
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}
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$dateStr =
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$matches['year'] .'-' .
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$matches['month'] . '-' .
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$matches['date'] . ' ' .
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$matches['hour'] . ':' .
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$matches['minute'] . ':' .
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$matches['second'];
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if (isset($matches['isutc'])) {
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$dt = new DateTime($dateStr,new DateTimeZone('UTC'));
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$dt->setTimeZone(new DateTimeZone('UTC'));
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return array(
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self::UTC,
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$dt
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);
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}
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// Finding the timezone.
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$tzid = $property['TZID'];
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if (!$tzid) {
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return array(
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self::LOCAL,
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new DateTime($dateStr)
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);
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}
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try {
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// tzid an Olson identifier?
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$tz = new DateTimeZone($tzid->value);
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} catch (Exception $e) {
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// Not an Olson id, we're going to try to find the information
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// through the time zone name map.
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$newtzid = Sabre_VObject_WindowsTimezoneMap::lookup($tzid->value);
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if (is_null($newtzid)) {
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// Not a well known time zone name either, we're going to try
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// to find the information through the VTIMEZONE object.
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// First we find the root object
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$root = $property;
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while($root->parent) {
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$root = $root->parent;
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}
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if (isset($root->VTIMEZONE)) {
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foreach($root->VTIMEZONE as $vtimezone) {
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if (((string)$vtimezone->TZID) == $tzid) {
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if (isset($vtimezone->{'X-LIC-LOCATION'})) {
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$newtzid = (string)$vtimezone->{'X-LIC-LOCATION'};
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} else {
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// No libical location specified. As a last resort we could
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// try matching $vtimezone's DST rules against all known
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// time zones returned by DateTimeZone::list*
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// TODO
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}
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}
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}
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}
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}
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try {
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$tz = new DateTimeZone($newtzid);
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} catch (Exception $e) {
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// If all else fails, we use the default PHP timezone
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$tz = new DateTimeZone(date_default_timezone_get());
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}
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}
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$dt = new DateTime($dateStr, $tz);
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$dt->setTimeZone($tz);
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return array(
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self::LOCALTZ,
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$dt
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);
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}
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}
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