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<?php
/*********************************************************************************/
/**
* iCalcreator class v2.6
* copyright (c) 2007-2008 Kjell-Inge Gustafsson kigkonsult
* www.kigkonsult.se/iCalcreator/index.php
* ical@kigkonsult.se
*
* Description:
* This file is a PHP implementation of RFC 2445.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*********************************************************************************/
/*********************************************************************************/
/* A little setup */
/*********************************************************************************/
/* your local language code */
// define( 'ICAL_LANG', 'sv' );
// alt. autosetting
/*
$langstr = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
$pos = strpos( $langstr, ';' );
if ($pos !== false) {
$langstr = substr( $langstr, 0, $pos );
$pos = strpos( $langstr, ',' );
if ($pos !== false) {
$pos = strpos( $langstr, ',' );
$langstr = substr( $langstr, 0, $pos );
}
define( 'ICAL_LANG', $langstr );
}
*/
/* only for phpversion 5.x, date management, default timezone setting */
if (substr(phpversion(), 0, 1) >= '5') // && ( 'UTC' == date_default_timezone_get() )) {
date_default_timezone_set('Europe/Stockholm');
/* version string, do NOT remove!! */
define('ICALCREATOR_VERSION', 'iCalcreator 2.6');
/*********************************************************************************/
/*********************************************************************************/
/**
* vcalendar class
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.2.13 - 2007-12-30
*/
class vcalendar
{
// calendar property variables
var $calscale;
var $method;
var $prodid;
var $version;
var $xprop;
// container for calendar components
var $components;
// component config variables
var $allowEmpty;
var $unique_id;
var $language;
var $directory;
var $filename;
var $url;
var $delimiter;
var $nl;
var $format;
// component internal variables
var $attributeDelimiter;
var $valueInit;
// component xCal declaration container
var $xcaldecl;
/*
* constructor for calendar object
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.2.13 - 2007-12-30
* @return void
*/
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function vcalendar()
{
$this->_makeVersion();
$this->calscale = null;
$this->method = null;
$this->_makeUnique_id();
$this->prodid = null;
$this->xprop = array();
/**
* language = <Text identifying a language, as defined in [RFC 1766]>
*/
if (defined('ICAL_LANG'))
$this->setConfig('language', ICAL_LANG);
$this->setConfig('allowEmpty', TRUE);
$this->setConfig('nl', "\n");
$this->setConfig('format', 'iCal');
$this->directory = null;
$this->filename = null;
$this->url = null;
$this->setConfig('delimiter', DIRECTORY_SEPARATOR);
$this->xcaldecl = array();
$this->components = array();
}
/*********************************************************************************/
/**
* Property Name: CALSCALE
*/
/**
* creates formatted output for calendar property calscale
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.4.8 - 2008-10-21
* @return string
*/
function createCalscale()
{
if (empty($this->calscale)) return FALSE;
switch ($this->format) {
case 'xcal':
return ' calscale="' . $this->calscale . '"' . $this->nl;
break;
default:
return 'CALSCALE:' . $this->calscale . $this->nl;
break;
}
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/**
* set calendar property calscale
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.4.8 - 2008-10-21
* @param string $value
* @return void
*/
function setCalscale($value)
{
if (empty($value)) return FALSE;
$this->calscale = $value;
}
/*********************************************************************************/
/**
* Property Name: METHOD
*/
/**
* creates formatted output for calendar property method
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 0.9.7 - 2006-11-20
* @return string
*/
function createMethod()
{
if (empty($this->method)) return FALSE;
switch ($this->format) {
case 'xcal':
return ' method="' . $this->method . '"' . $this->nl;
break;
default:
return 'METHOD:' . $this->method . $this->nl;
break;
}
/**
* set calendar property method
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.4.8 - 2008-20-23
* @param string $value
* @return bool
*/
function setMethod($value)
{
if (empty($value)) return FALSE;
$this->method = $value;
return TRUE;
}
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/*********************************************************************************/
/**
* Property Name: PRODID
*
* The identifier is RECOMMENDED to be the identical syntax to the
* [RFC 822] addr-spec. A good method to assure uniqueness is to put the
* domain name or a domain literal IP address of the host on which.. .
*/
/**
* creates formatted output for calendar property prodid
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 0.9.7 - 2006-11-20
* @return string
*/
function createProdid()
{
if (!isset($this->prodid))
$this->_makeProdid();
switch ($this->format) {
case 'xcal':
return ' prodid="' . $this->prodid . '"' . $this->nl;
break;
default:
return 'PRODID:' . $this->prodid . $this->nl;
break;
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}
/**
* make default value for calendar prodid
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 0.3.0 - 2006-08-10
* @return void
*/
function _makeProdid()
{
$this->prodid = '-//' . $this->unique_id . '//NONSGML ' . ICALCREATOR_VERSION . '//' . strtoupper($this->language);
}
/**
* Conformance: The property MUST be specified once in an iCalendar object.
* Description: The vendor of the implementation SHOULD assure that this
* is a globally unique identifier; using some technique such as an FPI
* value, as defined in [ISO 9070].
*/
/**
* make default unique_id for calendar prodid
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 0.3.0 - 2006-08-10
* @return void
*/
function _makeUnique_id()
{
$this->unique_id = (isset($_SERVER['SERVER_NAME'])) ? gethostbyname($_SERVER['SERVER_NAME']) : 'localhost';
}
/*********************************************************************************/
/**
* Property Name: VERSION
*
* Description: A value of "2.0" corresponds to this memo.
*/
/**
* creates formatted output for calendar property version
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 0.9.7 - 2006-11-20
* @return string
*/
function createVersion()
{
if (empty($this->version))
$this->_makeVersion();
switch ($this->format) {
case 'xcal':
return ' version="' . $this->version . '"' . $this->nl;
break;
default:
return 'VERSION:' . $this->version . $this->nl;
break;
/**
* set default calendar version
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 0.3.0 - 2006-08-10
* @return void
*/
function _makeVersion()
{
$this->version = '2.0';
/**
* set calendar version
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.4.8 - 2008-10-23
* @param string $value
* @return void
*/
function setVersion($value)
{
if (empty($value)) return FALSE;
$this->version = $value;
return TRUE;
}
/*********************************************************************************/
/**
* Property Name: x-prop
*/
/**
* creates formatted output for calendar property x-prop, iCal format only
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.4.11 - 2008-11-03
* @return string
*/
function createXprop()
{
if ('xcal' == $this->format)
return false;
if (0 >= count($this->xprop))
return;
$output = null;
$toolbox = new calendarComponent();
$toolbox->setConfig('language', $this->getConfig('language'));
$toolbox->setConfig('nl', $this->getConfig('nl'));
$toolbox->_createFormat($this->getConfig('format'));
foreach ($this->xprop as $label => $xpropPart) {
if (empty($xpropPart['value'])) {
$output .= $toolbox->_createElement($label);
continue;
}
$attributes = $toolbox->_createParams($xpropPart['params'], array('LANGUAGE'));
if (is_array($xpropPart['value'])) {
foreach ($xpropPart['value'] as $pix => $theXpart)
$xpropPart['value'][$pix] = $toolbox->_strrep($theXpart);
$xpropPart['value'] = implode(',', $xpropPart['value']);
} else
$xpropPart['value'] = $toolbox->_strrep($xpropPart['value']);
$output .= $toolbox->_createElement($label, $attributes, $xpropPart['value']);
return $output;
/**
* set calendar property x-prop
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.4.11 - 2008-11-04
* @param string $label
* @param string $value
* @param array $params optional
* @return bool
*/
function setXprop($label, $value, $params = FALSE)
{
if (empty($value)) if ($this->getConfig('allowEmpty')) $value = null; else return FALSE;
if (empty($label)) return FALSE;
$xprop = array('value' => $value);
$toolbox = new calendarComponent();
$xprop['params'] = $toolbox->_setParams($params);
if (!is_array($this->xprop)) $this->xprop = array();
$this->xprop[strtoupper($label)] = $xprop;
return TRUE;
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/*********************************************************************************/
/**
* delete calendar property value
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.4.5 - 2008-11-14
* @param mixed $propName , bool FALSE => X-property
* @param int @propix, optional, if specific property is wanted in case of multiply occurences
* @return bool, if successfull delete
*/
function deleteProperty($propName, $propix = FALSE)
{
$propName = ($propName) ? strtoupper($propName) : 'X-PROP';
if (!$propix)
$propix = (isset($this->propdelix[$propName])) ? $this->propdelix[$propName] + 2 : 1;
$this->propdelix[$propName] = --$propix;
$return = FALSE;
switch ($propName) {
case 'CALSCALE':
if (isset($this->calscale)) {
$this->calscale = null;
$return = TRUE;
}
break;
case 'METHOD':
if (isset($this->method)) {
$this->method = null;
$return = TRUE;
}
break;
default:
$reduced = array();
if ($propName != 'X-PROP') {
if (!isset($this->xprop[$propName])) return FALSE;
foreach ($this->xprop as $k => $a) {
if (($k != $propName) && !empty($a))
$reduced[$k] = $a;
}
} else {
if (count($this->xprop) <= $propix) return FALSE;
$xpropno = 0;
foreach ($this->xprop as $xpropkey => $xpropvalue) {
if ($propix != $xpropno)
$reduced[$xpropkey] = $xpropvalue;
$xpropno++;
}
}
$this->xprop = $reduced;
return TRUE;
return $return;
}
/**
* get calendar property value/params
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.5.1 - 2008-11-02
* @param string $propName , optional
* @param int @propix, optional, if specific property is wanted in case of multiply occurences
* @param bool $inclParam =FALSE
* @return mixed
*/
function getProperty($propName = FALSE, $propix = FALSE, $inclParam = FALSE)
{
$propName = ($propName) ? strtoupper($propName) : 'X-PROP';
if ('X-PROP' == $propName) {
if (!$propix)
$propix = (isset($this->propix[$propName])) ? $this->propix[$propName] + 2 : 1;
$this->propix[$propName] = --$propix;
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switch ($propName) {
case 'CALSCALE':
return (!empty($this->calscale)) ? $this->calscale : null;
break;
case 'METHOD':
return (!empty($this->method)) ? $this->method : null;
break;
case 'PRODID':
if (empty($this->prodid))
$this->_makeProdid();
return $this->prodid;
break;
case 'VERSION':
return (!empty($this->version)) ? $this->version : null;
break;
default:
if ($propName != 'X-PROP') {
if (!isset($this->xprop[$propName])) return FALSE;
return ($inclParam) ? array($propName, $this->xprop[$propName])
: array($propName, $this->xprop[$propName]['value']);
} else {
if (empty($this->xprop)) return FALSE;
$xpropno = 0;
foreach ($this->xprop as $xpropkey => $xpropvalue) {
if ($propix == $xpropno)
return ($inclParam) ? array($xpropkey, $this->xprop[$xpropkey])
: array($xpropkey, $this->xprop[$xpropkey]['value']);
else
$xpropno++;
}
return FALSE; // not found ??
return FALSE;
}
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/**
* general vcalendar property setting
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.2.13 - 2007-11-04
* @param mixed $args variable number of function arguments,
* first argument is ALWAYS component name,
* second ALWAYS component value!
* @return bool
*/
function setProperty()
{
$numargs = func_num_args();
if (1 > $numargs)
return FALSE;
$arglist = func_get_args();
$arglist[0] = strtoupper($arglist[0]);
switch ($arglist[0]) {
case 'CALSCALE':
return $this->setCalscale($arglist[1]);
case 'METHOD':
return $this->setMethod($arglist[1]);
case 'VERSION':
return $this->setVersion($arglist[1]);
default:
if (!isset($arglist[1])) $arglist[1] = null;
if (!isset($arglist[2])) $arglist[2] = null;
return $this->setXprop($arglist[0], $arglist[1], $arglist[2]);
}
return FALSE;
}
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/*********************************************************************************/
/**
* get vcalendar config values or * calendar components
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.4.10 - 2008-10-23
* @param string $config
* @return value
*/
function getConfig($config)
{
switch (strtoupper($config)) {
case 'ALLOWEMPTY':
return $this->allowEmpty;
break;
case 'COMPSINFO':
unset($this->compix);
$info = array();
foreach ($this->components as $cix => $component) {
if (empty($component)) continue;
unset($component->propix);
$info[$cix]['ordno'] = $cix + 1;
$info[$cix]['type'] = $component->objName;
$info[$cix]['uid'] = $component->getProperty('uid');
$info[$cix]['props'] = $component->getConfig('propinfo');
$info[$cix]['sub'] = $component->getConfig('compsinfo');
unset($component->propix);
return $info;
case 'DELIMITER':
return $this->delimiter;
case 'DIRECTORY':
if (empty($this->directory))
$this->directory = '.';
return $this->directory;
case 'DIRFILE':
return $this->getConfig('directory') . $this->getConfig('delimiter') . $this->getConfig('filename');
case 'FILEINFO':
return array($this->getConfig('directory')
, $this->getConfig('filename')
, $this->getConfig('filesize'));
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case 'FILENAME':
if (empty($this->filename)) {
if ('xcal' == $this->format)
$this->filename = date('YmdHis') . '.xml'; // recommended xcs.. .
else
$this->filename = date('YmdHis') . '.ics';
}
return $this->filename;
break;
case 'FILESIZE':
$size = 0;
if (empty($this->url)) {
$dirfile = $this->getConfig('dirfile');
if (FALSE === ($size = filesize($dirfile)))
$size = 0;
clearstatcache();
}
return $size;
break;
case 'FORMAT':
return $this->format;
break;
case 'LANGUAGE':
/* get language for calendar component as defined in [RFC 1766] */
return $this->language;
break;
case 'NL':
case 'NEWLINECHAR':
return $this->nl;
break;
case 'UNIQUE_ID':
return $this->unique_id;
break;
case 'URL':
if (!empty($this->url))
return $this->url;
else
return FALSE;
break;
}
}
/**
* general vcalendar config setting
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.4.8 - 2008-10-24
* @param string $config
* @param string $value
* @return void
*/
function setConfig($config, $value)
{
$res = FALSE;
switch (strtoupper($config)) {
case 'ALLOWEMPTY':
$this->allowEmpty = $value;
$subcfg = array('ALLOWEMPTY' => $value);
$res = TRUE;
break;
case 'DELIMITER':
$this->delimiter = $value;
return TRUE;
break;
case 'DIRECTORY':
$value = trim($value);
$nl = $this->getConfig('delimiter');
if ($nl == substr($value, (0 - strlen($nl))))
$value = substr($value, 0, (strlen($value) - strlen($nl)));
if (is_dir($value)) {
/* local directory */
clearstatcache();
$this->directory = $value;
$this->url = null;
return TRUE;
} else
return FALSE;
break;
case 'FILENAME':
$value = trim($value);
if (!empty($this->url)) {
/* remote directory+file - URL */
$this->filename = $value;
return TRUE;
}
$dirfile = $this->getConfig('directory') . $this->getConfig('delimiter') . $value;
if (file_exists($dirfile)) {
/* local existing file */
if (is_readable($dirfile) || is_writable($dirfile)) {
clearstatcache();
$this->filename = $value;
return TRUE;
} else
return FALSE;
} elseif (FALSE !== touch($dirfile)) {
/* new local file created */
$this->filename = $value;
return TRUE;
} else
return FALSE;
break;
case 'FORMAT':
$value = trim($value);
if ('xcal' == strtolower($value)) {
$this->format = 'xcal';
$this->attributeDelimiter = $this->nl;
$this->valueInit = null;
} else {
$this->format = null;
$this->attributeDelimiter = ';';
$this->valueInit = ':';
}
$subcfg = array('FORMAT' => $value);
$res = TRUE;
break;
case 'LANGUAGE':
// set language for calendar component as defined in [RFC 1766]
$value = trim($value);
$this->language = $value;
$subcfg = array('LANGUAGE' => $value);
$res = TRUE;
break;
case 'NL':
case 'NEWLINECHAR':
$this->nl = $value;
$subcfg = array('NL' => $value);
$res = TRUE;
break;
case 'UNIQUE_ID':
$value = trim($value);
$this->unique_id = $value;
$subcfg = array('UNIQUE_ID' => $value);
$res = TRUE;
break;
case 'URL':
/* remote file - URL */
$value = trim($value);
$value = str_replace('HTTP://', 'http://', $value);
$value = str_replace('WEBCAL://', 'http://', $value);
$value = str_replace('webcal://', 'http://', $value);
$this->url = $value;
$this->directory = null;
$parts = pathinfo($value);
return $this->setConfig('filename', $parts['basename']);
break;
}
if (!$res) return FALSE;
if (isset($subcfg) && !empty($this->components)) {
foreach ($subcfg as $cfgkey => $cfgvalue) {
foreach ($this->components as $cix => $component) {
$res = $component->setConfig($cfgkey, $cfgvalue);
if (!$res)
break 2;
$this->components[$cix] = $component->copy(); // PHP4 compliant
}
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}
return $res;
}
/*********************************************************************************/
/**
* add calendar component to container
*
* alias to setComponent
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 1.x.x - 2007-04-24
* @param object $component calendar component
* @return void
*/
function addComponent($component)
{
$this->setComponent($component);
}
/**
* delete calendar component from container
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.4.10 - 2008-08-05
* @param mixed $arg1 ordno / component type / component uid
* @param mixed $arg2 optional, ordno if arg1 = component type
* @return void
*/
function deleteComponent($arg1, $arg2 = FALSE)
{
$argType = $index = null;
if (ctype_digit((string)$arg1)) {
$argType = 'INDEX';
$index = (int)$arg1 - 1;
} elseif ((strlen($arg1) <= strlen('vfreebusy')) && (FALSE === strpos($arg1, '@'))) {
$argType = strtolower($arg1);
$index = (!empty($arg2) && ctype_digit((string)$arg2)) ? (( int )$arg2 - 1) : 0;
}
$cix1dC = 0;
foreach ($this->components as $cix => $component) {
if (empty($component)) continue;
unset($component->propix);
if (('INDEX' == $argType) && ($index == $cix)) {
unset($this->components[$cix]);
return TRUE;
} elseif ($argType == $component->objName) {
if ($index == $cix1dC) {
unset($this->components[$cix]);
return TRUE;
}
$cix1dC++;
} elseif (!$argType && ($arg1 == $component->getProperty('uid'))) {
unset($this->components[$cix]);
return TRUE;
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}
return FALSE;
}
/**
* get calendar component from container
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.4.10 - 2008-08-06
* @param mixed $arg1 optional, ordno/component type/ component uid
* @param mixed $arg2 optional, ordno if arg1 = component type
* @return object
*/
function getComponent($arg1 = FALSE, $arg2 = FALSE)
{
$index = $argType = null;
if (!$arg1) {
$argType = 'INDEX';
$index = $this->compix['INDEX'] =
(isset($this->compix['INDEX'])) ? $this->compix['INDEX'] + 1 : 1;
} elseif (ctype_digit((string)$arg1)) {
$argType = 'INDEX';
$index = (int)$arg1;
unset($this->compix);
} elseif ((strlen($arg1) <= strlen('vfreebusy')) && (FALSE === strpos($arg1, '@'))) {
unset($this->compix['INDEX']);
$argType = strtolower($arg1);
if (!$arg2)
$index = $this->compix[$argType] =
(isset($this->compix[$argType])) ? $this->compix[$argType] + 1 : 1;
else
$index = (int)$arg2;
}
$index -= 1;
$ckeys = array_keys($this->components);
if (!empty($index) && ($index > end($ckeys)))
return FALSE;
$cix1gC = 0;
foreach ($this->components as $cix => $component) {
if (empty($component)) continue;
unset($component->propix);
if (('INDEX' == $argType) && ($index == $cix))
return $component->copy();
elseif ($argType == $component->objName) {
if ($index == $cix1gC)
return $component->copy();
$cix1gC++;
} elseif (!$argType && ($arg1 == $component->getProperty('uid'))) {
unset($component->propix);
return $component->copy();
}
/* not found.. . */
unset($this->compix);
return FALSE;
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/**
* select components from calendar on date basis
*
* Ensure DTSTART is set for every component.
* No date controls occurs.
*
* @author Kjell-Inge Gustafsson <ical@kigkonsult.se>
* @since 2.4.16 - 2008-10-18
* @param int $startY optional, start Year, default current Year
* @param int $startM optional, start Month, default current Month
* @param int $startD optional, start Day, default current Day
* @param int $endY optional, end Year, default $startY
* @param int $endY optional, end Month, default $startM
* @param int $endY optional, end Day, default $startD
* @param mixed $cType optional, calendar component type(-s), default FALSE=all else string/array type(-s)
* @param bool $flat optional, FALSE (default) => output : array[Year][Month][Day][]
* TRUE => output : array[] (ignores split)
* @param bool $any optional, TRUE (default) - select component that take place within period
* FALSE - only components that starts within period
* @param bool $split optional, TRUE (default) - one component copy every day it take place during the
* period (implies flat=FALSE)
* FALSE - one occurance of component only in output array</tr>
* @return array or FALSE
*/
function selectComponents($startY = FALSE, $startM = FALSE, $startD = FALSE, $endY = FALSE, $endM = FALSE, $endD = FALSE, $cType = FALSE, $flat = FALSE, $any = TRUE, $split = TRUE)
{
/* check if empty calendar */
if (0 >= count($this->components)) return FALSE;
/* check default dates */
if (!$startY) $startY = date('Y');
if (!$startM) $startM = date('m');
if (!$startD) $startD = date('d');
$startDate = mktime(0, 0, 0, $startM, $startD, $startY);
if (!$endY) $endY = $startY;
if (!$endM) $endM = $startM;
if (!$endD) $endD = $startD;
$endDate = mktime(23, 59, 59, $endM, $endD, $endY);
/* check component types */
$validTypes = array('vevent', 'vtodo', 'vjournal', 'vfreebusy');
if (is_array($cType)) {
foreach ($cType as $cix => $theType) {
$cType[$cix] = $theType = strtolower($theType);
if (!in_array($theType, $validTypes))
$cType[$cix] = 'vevent';
}
$cType = array_unique($cType);
} elseif (!empty($cType)) {
$cType = strtolower($cType);
if (!in_array($cType, $validTypes))
$cType = array('vevent');
else
$cType = array($cType);
} else
$cType = $validTypes;
if (0 >= count($cType))
$cType = $validTypes;
/* iterate components */
$result = array();
foreach ($this->components as $cix => $component) {
if (empty($component)) continue;
unset($component->propix, $start);
/* deselect unvalid type components */
if (!in_array($component->objName, $cType)) continue;
/* deselect components without dtstart set */
if (FALSE === ($start = $component->getProperty('dtstart'))) continue;
$dtendExist = $dueExist = $durationExist = $endAllDayEvent = FALSE;
unset($end, $startWdate, $endWdate, $rdurWsecs, $rdur, $exdatelist, $workstart, $workend); // clean up
$startWdate = $component->_date2timestamp($start);
$startDateFormat = (isset($start['hour'])) ? 'Y-m-d H:i:s' : 'Y-m-d';
/* get end date from dtend/due/duration properties */
$end = $component->getProperty('dtend');
if (!empty($end)) {
$dtendExist = TRUE;
$endDateFormat = (isset($end['hour'])) ? 'Y-m-d H:i:s' : 'Y-m-d';
}
// if( !empty($end)) echo 'selectComp 1 start='.implode('-',$start).' end='.implode('-',$end)."<br />\n"; // test ###
if (empty($end) && ($component->objName == 'vtodo')) {
$end = $component->getProperty('due');
if (!empty($end)) {
$dueExist = TRUE;
$endDateFormat = (isset($end['hour'])) ? 'Y-m-d H:i:s' : 'Y-m-d';
}
// if( !empty($end)) echo 'selectComp 2 start='.implode('-',$start).' end='.implode('-',$end)."<br />\n"; // test ###
}
if (!empty($end) && !isset($end['hour'])) {
/* a DTEND without time part regards an event that ends the day before,
for an all-day event DTSTART=20071201 DTEND=20071202 (taking place 20071201!!! */
$endAllDayEvent = TRUE;
$endWdate = mktime(23, 59, 59, $end['month'], ($end['day'] - 1), $end['year']);
$end['year'] = date('Y', $endWdate);
$end['month'] = date('m', $endWdate);
$end['day'] = date('d', $endWdate);
$end['hour'] = 23;
$end['min'] = $end['sec'] = 59;
// if( !empty($end)) echo 'selectComp 3 start='.implode('-',$start).' end='.implode('-',$end)."<br />\n"; // test ###
}
if (empty($end)) {
$end = $component->getProperty('duration', FALSE, FALSE, TRUE);// in dtend (array) format
if (!empty($end))
$durationExist = TRUE;
// if( !empty($end)) echo 'selectComp 4 start='.implode('-',$start).' end='.implode('-',$end)."<br />\n"; // test ###
}
if (empty($end)) { // assume one day duration if missing end date
$end = array('year' => $start['year'], 'month' => $start['month'], 'day' => $start['day'], 'hour' => 23, 'min' => 59, 'sec' => 59);
// if( isset($end)) echo 'selectComp 5 start='.implode('-',$start).' end='.implode('-',$end)."<br />\n"; // test ###
}
$endWdate = $component->_date2timestamp($end);
if ($endWdate < $startWdate) { // MUST be after start date!!
$end = array('year' => $start['year'], 'month' => $start['month'], 'day' => $start['day'], 'hour' => 23, 'min' => 59, 'sec' => 59);
$endWdate = $component->_date2timestamp($end);
}
$rdurWsecs = $endWdate - $startWdate; // compute component duration in seconds
$rdur = $component->_date2duration($start, $end); // compute component duration, array
/* make a list of optional exclude dates for component occurence from exrule and exdate */
$exdatelist = array();
$workstart = $component->_timestamp2date(($startDate - $rdurWsecs), 6);
$workend = $component->_timestamp2date(($endDate + $rdurWsecs), 6);
while (FALSE !== ($exrule = $component->getProperty('exrule'))) // check exrule
$component->_recur2date($exdatelist, $exrule, $start, $workstart, $workend);
while (FALSE !== ($exdate = $component->getProperty('exdate'))) { // check exdate
foreach ($exdate as $theExdate) {
$exWdate = $component->_date2timestamp($theExdate);
if ((($startDate - $rdurWsecs) <= $exWdate) && ($endDate >= $exWdate))
$exdatelist[$exWdate] = TRUE;
}
}
/* if 'any' components, check repeating components, removing all excluding dates */
if (TRUE === $any) {
/* make a list of optional repeating dates for component occurence, rrule, rdate */
$recurlist = array();
while (FALSE !== ($rrule = $component->getProperty('rrule'))) // check rrule
$component->_recur2date($recurlist, $rrule, $start, $workstart, $workend);
foreach ($recurlist as $recurkey => $recurvalue) // key=match date as timestamp
$recurlist[$recurkey] = $rdurWsecs; // add duration in seconds
while (FALSE !== ($rdate = $component->getProperty('rdate'))) { // check rdate
foreach ($rdate as $theRdate) {
if (is_array($theRdate) && (2 == count($theRdate)) && // all days within PERIOD
array_key_exists('0', $theRdate) && array_key_exists('1', $theRdate)
) {
$rstart = $component->_date2timestamp($theRdate[0]);
if (($rstart < ($startDate - $rdurWsecs)) || ($rstart > $endDate))
continue;
if (isset($theRdate[1]['year'])) // date-date period
$rend = $component->_date2timestamp($theRdate[1]);
else { // date-duration period
$rend = $component->duration2date($theRdate[0], $theRdate[1]);
$rend = $component->_date2timestamp($rend);
}
if ((($startDate - $rdurWsecs) <= $rstart) && ($endDate >= $rstart))
$recurlist[$rstart] = ($rstart - $rend); // set start date + rdate duration in seconds
} // PERIOD end
else { // single date
$theRdate = $component->_date2timestamp($theRdate);
if ((($startDate - $rdurWsecs) <= $theRdate) && ($endDate >= $theRdate))
$recurlist[$theRdate] = $rdurWsecs; // set start date + event duration in seconds
}
}
}
if (0 < count($recurlist)) {
ksort($recurlist);
foreach ($recurlist as $recurkey => $durvalue) {
if ((($startDate - $rdurWsecs) > $recurkey) || ($endDate < $recurkey)) // not within period
continue;
if (isset($exdatelist[$recurkey])) // check excluded dates
continue;
if ($startWdate >= $recurkey) // exclude component start date
continue;
$component2 = $component->copy();
$rstart = $component2->_timestamp2date($recurkey, 6);
$datevalue = $rstart['month'] . '/' . $rstart['day'] . '/' . $rstart['year'];
if (isset($start['hour']) || isset($start['min']) || isset($start['sec'])) {
$datevalue .= (isset($rstart['hour'])) ? ' ' . $rstart['hour'] : ' 00';
$datevalue .= (isset($rstart['min'])) ? ':' . $rstart['min'] : ':00';
$datevalue .= (isset($rstart['sec'])) ? ':' . $rstart['sec'] : ':00';
}
$datestring = date($startDateFormat, strtotime($datevalue));
if (isset($start['tz']))
$datestring .= ' ' . $start['tz'];
$component2->setProperty('X-CURRENT-DTSTART', $datestring);
$rend = $component2->_timestamp2date(($recurkey + $durvalue), 6);
if ($dtendExist || $dueExist) {
if ($endAllDayEvent) {
$rend2 = mktime(0, 0, 0, $rend['month'], ($rend['day'] + 1), $rend['year']);
$datevalue = date('m', $rend2) . '/' . date('d', $rend2) . '/' . date('Y', $rend2);
} else {
$datevalue = $rend['month'] . '/' . $rend['day'] . '/' . $rend['year'];
if (isset($end['hour']) || isset($end['min']) || isset($end['sec'])) {
$datevalue .= (isset($rend['hour'])) ? ' ' . $rend['hour'] : ' 00';