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https://gitlab.com/davical-project/davical.git
synced 2026-01-27 00:33:34 +00:00
Apparently CentOS 5 doesn't have DateTime class in it's PHP :-(
This commit is contained in:
Andrew McMillan
parent
459c50c9f9
commit
4e7ad35dfb
@ -9,6 +9,8 @@
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* @license http://gnu.org/copyleft/gpl.html GNU GPL v2 or later
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*/
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if ( !class_exists('DateTime') ) return;
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$rrule_expand_limit = array(
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'YEARLY' => array( 'bymonth' => 'expand', 'byweekno' => 'expand', 'byyearday' => 'expand', 'bymonthday' => 'expand',
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'byday' => 'expand', 'byhour' => 'expand', 'byminute' => 'expand', 'bysecond' => 'expand' ),
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@ -67,161 +67,162 @@ switch( $xmltree->GetTag() ) {
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}
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/**
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* Expand the event instances for an RDATE or EXDATE property
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*
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* @param string $property RDATE or EXDATE, depending...
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* @param array $component An iCalComponent which is applies for these instances
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* @param array $range_end A date after which we care less about expansion
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*
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* @return array An array keyed on the UTC dates, referring to the component
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*/
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function rdate_expand( $property, $component, $range_end ) {
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$timezone = $comp->GetPParamValue($property, 'TZID');
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$rdate = $comp->GetPValue($property);
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$rdates = explode( ',', $rdate );
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$expansion = array();
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foreach( $rdates AS $k => $v ) {
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$rdate = new RepeatRuleDateTime( $v, $timezone);
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$expansion[$rdate->UTC()] = $component;
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}
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return $expansion;
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}
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/**
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* Expand the event instances for an RRULE property
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*
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* @param object $dtstart A RepeatRuleDateTime which is the master dtstart
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* @param string $property RDATE or EXDATE, depending...
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* @param array $component An iCalComponent which is applies for these instances
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* @param array $range_end A date after which we care less about expansion
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*
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* @return array An array keyed on the UTC dates, referring to the component
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*/
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function rrule_expand( $dtstart, $property, $component, $range_end ) {
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$expansion = array();
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$recur = $comp->GetPValue($property);
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if ( !isset($recur) ) return $expansion;
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$this_start = $comp->GetPValue('DTSTART');
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if ( isset($this_start) ) {
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$timezone = $comp->GetPParamValue('DTSTART', 'TZID');
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$this_start = new RepeatRuleDateTime($this_start,$timezone);
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}
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else {
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$this_start = clone($dtstart);
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}
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$rule = new RepeatRule( $this_start, $recur );
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$i = 0;
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$result_limit = 1000;
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while( $date = $rule->next() ) {
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$expansion[$date->UTC()] = $component;
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if ( $i >= $result_limit ) break;
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}
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return $expansion;
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}
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/**
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* Expand the event instances for an iCalendar VEVENT (or VTODO)
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*
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* @param object $ics An iCalComponent which is the master VCALENDAR
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* @param object $range_start A RepeatRuleDateTime which is the beginning of the range for events
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* @param object $range_end A RepeatRuleDateTime which is the end of the range for events
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*
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* @return iCalComponent The original iCalComponent with expanded events in the range.
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*/
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function expand_event_instances( $ics, $range_start = null, $range_end = null ) {
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$components = $ics->GetComponents();
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if ( !isset($range_start) ) { $range_start = new RepeatRuleDateTime($range_start); $range_start->modify('-6 weeks'); }
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if ( !isset($range_end) ) { $range_end = new RepeatRuleDateTime($range_end); $range_end->modify('+4 months'); }
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$new_components = array();
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$result_limit = 1000;
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$instances = array();
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$expand = false;
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$dtstart = null;
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foreach( $components AS $k => $comp ) {
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if ( $comp->GetType() != 'VEVENT' && $comp->GetType() != 'VTODO' && $comp->GetType() != 'VJOURNAL' ) {
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$new_components[] = $comp;
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continue;
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if ( class_exists('RepeatRule') ) {
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/**
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* Expand the event instances for an RDATE or EXDATE property
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*
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* @param string $property RDATE or EXDATE, depending...
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* @param array $component An iCalComponent which is applies for these instances
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* @param array $range_end A date after which we care less about expansion
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*
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* @return array An array keyed on the UTC dates, referring to the component
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*/
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function rdate_expand( $property, $component, $range_end ) {
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$timezone = $comp->GetPParamValue($property, 'TZID');
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$rdate = $comp->GetPValue($property);
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$rdates = explode( ',', $rdate );
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$expansion = array();
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foreach( $rdates AS $k => $v ) {
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$rdate = new RepeatRuleDateTime( $v, $timezone);
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$expansion[$rdate->UTC()] = $component;
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}
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if ( !isset($dtstart) ) {
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$dtstart = new RepeatRuleDateTime( $comp->GetPValue('DTSTART'), $comp->GetPParamValue('DTSTART', 'TZID') );
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$instances[$dtstart->UTC()] = $comp;
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return $expansion;
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}
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/**
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* Expand the event instances for an RRULE property
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*
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* @param object $dtstart A RepeatRuleDateTime which is the master dtstart
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* @param string $property RDATE or EXDATE, depending...
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* @param array $component An iCalComponent which is applies for these instances
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* @param array $range_end A date after which we care less about expansion
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*
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* @return array An array keyed on the UTC dates, referring to the component
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*/
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function rrule_expand( $dtstart, $property, $component, $range_end ) {
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$expansion = array();
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$recur = $comp->GetPValue($property);
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if ( !isset($recur) ) return $expansion;
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$this_start = $comp->GetPValue('DTSTART');
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if ( isset($this_start) ) {
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$timezone = $comp->GetPParamValue('DTSTART', 'TZID');
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$this_start = new RepeatRuleDateTime($this_start,$timezone);
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}
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$p = $comp->GetPValue('RECURRENCE-ID');
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if ( isset($p) && $p != '' ) {
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$range = $comp->GetPParamValue('RECURRENCE-ID', 'RANGE');
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$recur_tzid = $comp->GetPParamValue('RECURRENCE-ID', 'TZID');
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$recur_utc = new RepeatRuleDateTime($p,$recur_tzid);
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$recur_utc = $recur_utc->UTC();
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if ( isset($range) && $range == 'THISANDFUTURE' ) {
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foreach( $instances AS $k => $v ) {
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if ( $k >= $recur_utc ) unset($instances[$k]);
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}
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else {
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$this_start = clone($dtstart);
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}
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$rule = new RepeatRule( $this_start, $recur );
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$i = 0;
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$result_limit = 1000;
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while( $date = $rule->next() ) {
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$expansion[$date->UTC()] = $component;
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if ( $i >= $result_limit ) break;
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}
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return $expansion;
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}
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/**
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* Expand the event instances for an iCalendar VEVENT (or VTODO)
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*
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* @param object $ics An iCalComponent which is the master VCALENDAR
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* @param object $range_start A RepeatRuleDateTime which is the beginning of the range for events
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* @param object $range_end A RepeatRuleDateTime which is the end of the range for events
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*
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* @return iCalComponent The original iCalComponent with expanded events in the range.
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*/
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function expand_event_instances( $ics, $range_start = null, $range_end = null ) {
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$components = $ics->GetComponents();
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if ( !isset($range_start) ) { $range_start = new RepeatRuleDateTime($range_start); $range_start->modify('-6 weeks'); }
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if ( !isset($range_end) ) { $range_end = new RepeatRuleDateTime($range_end); $range_end->modify('+4 months'); }
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$new_components = array();
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$result_limit = 1000;
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$instances = array();
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$expand = false;
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$dtstart = null;
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foreach( $components AS $k => $comp ) {
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if ( $comp->GetType() != 'VEVENT' && $comp->GetType() != 'VTODO' && $comp->GetType() != 'VJOURNAL' ) {
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$new_components[] = $comp;
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continue;
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}
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else {
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unset($instances[$recur_utc]);
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if ( !isset($dtstart) ) {
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$dtstart = new RepeatRuleDateTime( $comp->GetPValue('DTSTART'), $comp->GetPParamValue('DTSTART', 'TZID') );
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$instances[$dtstart->UTC()] = $comp;
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}
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$instances[] = $comp;
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}
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$instances = array_merge( $instances, rrule_expand($dtstart, 'RRULE', $comp) );
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$instances = array_merge( $instances, rdate_expand($dtstart, 'RDATE', $comp) );
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foreach ( rdate_expand($dtstart, 'EXDATE', $comp) AS $k => $v ) {
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unset($instances[$k]);
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}
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}
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$last_duration = null;
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$in_range = false;
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$new_components = array();
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$start_utc = $range_start->UTC();
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$end_utc = $range_end->UTC();
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foreach( $instances AS $utc => $comp ) {
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if ( $utc < $start_utc ) {
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$duration = $comp->GetPValue('DURATION');
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if ( !isset($duration) ) {
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$dtend = new RepeatRuleDateTime( $comp->GetPValue('DTEND'), $comp->GetPValue('DTEND', 'TZID'));
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$dtsrt = new RepeatRuleDateTime( $comp->GetPValue('DTSTART'), $comp->GetPValue('DTSTART', 'TZID'));
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$duration = sprintf( '%d minutes', (($dtend->epoch() - $dtsrt->epoch()) / 60) );
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}
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if ( isset($duration) ) {
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if ( isset($last_duration) && $duration == $last_duration) {
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if ( $utc < $early_start ) continue;
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$p = $comp->GetPValue('RECURRENCE-ID');
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if ( isset($p) && $p != '' ) {
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$range = $comp->GetPParamValue('RECURRENCE-ID', 'RANGE');
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$recur_tzid = $comp->GetPParamValue('RECURRENCE-ID', 'TZID');
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$recur_utc = new RepeatRuleDateTime($p,$recur_tzid);
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$recur_utc = $recur_utc->UTC();
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if ( isset($range) && $range == 'THISANDFUTURE' ) {
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foreach( $instances AS $k => $v ) {
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if ( $k >= $recur_utc ) unset($instances[$k]);
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}
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}
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else {
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$latest_start = clone($range_start);
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$latest_start->modify('-'.$duration);
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$early_start = $latest_start->UTC();
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$last_duration = $duration;
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if ( $utc < $early_start ) continue;
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unset($instances[$recur_utc]);
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}
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$instances[] = $comp;
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}
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else {
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$instances = array_merge( $instances, rrule_expand($dtstart, 'RRULE', $comp) );
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$instances = array_merge( $instances, rdate_expand($dtstart, 'RDATE', $comp) );
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foreach ( rdate_expand($dtstart, 'EXDATE', $comp) AS $k => $v ) {
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unset($instances[$k]);
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}
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continue;
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}
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if ( $utc > $end_utc ) break;
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$new_components[] = $comp;
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$in_range = true;
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}
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if ( $in_range ) {
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$ics->SetComponents($new_components);
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}
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else {
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$ics->SetComponents(array());
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}
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$last_duration = null;
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$in_range = false;
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$new_components = array();
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$start_utc = $range_start->UTC();
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$end_utc = $range_end->UTC();
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foreach( $instances AS $utc => $comp ) {
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if ( $utc < $start_utc ) {
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$duration = $comp->GetPValue('DURATION');
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if ( !isset($duration) ) {
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$dtend = new RepeatRuleDateTime( $comp->GetPValue('DTEND'), $comp->GetPValue('DTEND', 'TZID'));
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$dtsrt = new RepeatRuleDateTime( $comp->GetPValue('DTSTART'), $comp->GetPValue('DTSTART', 'TZID'));
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$duration = sprintf( '%d minutes', (($dtend->epoch() - $dtsrt->epoch()) / 60) );
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}
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if ( isset($duration) ) {
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if ( isset($last_duration) && $duration == $last_duration) {
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if ( $utc < $early_start ) continue;
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}
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else {
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$latest_start = clone($range_start);
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$latest_start->modify('-'.$duration);
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$early_start = $latest_start->UTC();
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$last_duration = $duration;
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if ( $utc < $early_start ) continue;
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}
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}
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else {
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}
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continue;
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}
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if ( $utc > $end_utc ) break;
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$new_components[] = $comp;
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$in_range = true;
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}
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return $ics;
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if ( $in_range ) {
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$ics->SetComponents($new_components);
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}
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else {
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$ics->SetComponents(array());
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}
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return $ics;
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}
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}
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/**
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* Return XML for a single calendar (or todo) entry from the DB
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*
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