Файловый менеджер

Файловый менеджер - Редактировать - /var/www/biopower/html/wp-content/plugins/jetpack/_inc/lib/icalendar-reader.php

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<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName /** * Get and render iCal feeds. * Used by the Upcoming Events widget and the [upcomingevents] shortcode. * * @package automattic/jetpack / // phpcs:disable Universal.Files.SeparateFunctionsFromOO.Mixed -- TODO: Move classes to appropriately-named class files. /* * Calendar utilities class. * * phpcs:disable PEAR.NamingConventions.ValidClassName.StartWithCapital / class iCalendarReader { // phpcs:enable PEAR.NamingConventions.ValidClassName.StartWithCapital // phpcs:disable WordPress.DateTime.RestrictedFunctions.date_date -- we manually handle timezones all over the file. // @todo Verify that we're manually handling timezones correctly. We probably need more `DateTime` with `$this->timezone` and maybe `wp_date()` and less `strtotime()` and `date()` and `date_i18n()`. /* * Count To Do events in calendar. * * @var int / public $todo_count = 0; /* * How many events can be found in calendar. * * @var int / public $event_count = 0; /* * Details about our calendar. * * @var array / public $cal = array(); /* * Timezone parsed from the iCalendar feed, if any. * * @var null\|DateTimeZone / public $timezone = null; /* * Class constructor * * @return void / public function __construct() {} /* * Return an array of events * * @param string $url (default: '') URL of the iCal feed. * @param int $count Count the number of events. * * @return array \| false on failure / public function get_events( $url = '', $count = 5 ) { $count = (int) $count; $transient_id = 'icalendar_vcal_' . md5( $url ) . '_' . $count; $vcal = get_transient( $transient_id ); $vcal = false; if ( ! empty( $vcal ) ) { if ( isset( $vcal['TIMEZONE'] ) ) { $this->timezone = $this->timezone_from_string( $vcal['TIMEZONE'] ); } if ( isset( $vcal['VEVENT'] ) ) { $vevent = $vcal['VEVENT']; if ( $count > 0 ) { $vevent = array_slice( $vevent, 0, $count ); } $this->cal['VEVENT'] = $vevent; return $this->cal['VEVENT']; } } if ( ! $this->parse( $url ) ) { return false; } $vcal = array(); if ( $this->timezone ) { $vcal['TIMEZONE'] = $this->timezone->getName(); } else { $this->timezone = $this->timezone_from_string( '' ); } if ( ! empty( $this->cal['VEVENT'] ) ) { $vevent = $this->cal['VEVENT']; // check for recurring events. // $vevent = $this->add_recurring_events( $vevent );. // remove before caching - no sense in hanging onto the past. $vevent = $this->filter_past_and_recurring_events( $vevent ); // order by soonest start date. $vevent = $this->sort_by_recent( $vevent ); $vcal['VEVENT'] = $vevent; } set_transient( $transient_id, $vcal, HOUR_IN_SECONDS ); if ( ! isset( $vcal['VEVENT'] ) ) { return false; } if ( $count > 0 ) { return array_slice( $vcal['VEVENT'], 0, $count ); } return $vcal['VEVENT']; } /* * Adjust event's time based on site's timezone. * * @param array $events Array of events. * * @return array / public function apply_timezone_offset( $events ) { if ( ! $events ) { return $events; } // get timezone offset from the timezone name. $timezone = wp_timezone(); $offsetted_events = array(); foreach ( $events as $event ) { // Don't handle all-day events. if ( 8 < strlen( $event['DTSTART'] ) ) { $start_time = preg_replace( '/Z$/', '', $event['DTSTART'] ); $start_time = new DateTime( $start_time, $this->timezone ); $start_time->setTimeZone( $timezone ); $event['DTSTART'] = $start_time->format( 'YmdHis\Z' ); if ( isset( $event['DTEND'] ) ) { $end_time = preg_replace( '/Z$/', '', $event['DTEND'] ); $end_time = new DateTime( $end_time, $this->timezone ); $end_time->setTimeZone( $timezone ); $event['DTEND'] = $end_time->format( 'YmdHis\Z' ); } } $offsetted_events[] = $event; } return $offsetted_events; } /* * Reorganize events into an array of events with standardized data. * * @param array $events Array of events. * * @return array / protected function filter_past_and_recurring_events( $events ) { $upcoming = array(); $set_recurring_events = array(); /* * This filter allows any time to be passed in for testing or changing timezones, etc... * * @module widgets * * @since 3.4.0 * * @param object time() A time object. / $current = apply_filters( 'ical_get_current_time', time() ); foreach ( $events as $event ) { $date_from_ics = strtotime( $event['DTSTART'] ); if ( isset( $event['DTEND'] ) ) { $duration = strtotime( $event['DTEND'] ) - strtotime( $event['DTSTART'] ); } else { $duration = 0; } if ( isset( $event['RRULE'] ) && $this->timezone->getName() && 8 !== strlen( $event['DTSTART'] ) ) { try { $adjusted_time = new DateTime( $event['DTSTART'], new DateTimeZone( 'UTC' ) ); $adjusted_time->setTimeZone( new DateTimeZone( $this->timezone->getName() ) ); $event['DTSTART'] = $adjusted_time->format( 'Ymd\THis' ); $date_from_ics = strtotime( $event['DTSTART'] ); $event['DTEND'] = date( 'Ymd\THis', strtotime( $event['DTSTART'] ) + $duration ); } catch ( Exception $e ) { // phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedCatch // Invalid argument to DateTime. } if ( isset( $event['EXDATE'] ) ) { $exdates = array(); foreach ( (array) $event['EXDATE'] as $exdate ) { try { $adjusted_time = new DateTime( $exdate, new DateTimeZone( 'UTC' ) ); $adjusted_time->setTimeZone( new DateTimeZone( $this->timezone->getName() ) ); if ( 8 === strlen( $event['DTSTART'] ) ) { $exdates[] = $adjusted_time->format( 'Ymd' ); } else { $exdates[] = $adjusted_time->format( 'Ymd\THis' ); } } catch ( Exception $e ) { // phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedCatch // Invalid argument to DateTime. } } $event['EXDATE'] = $exdates; } else { $event['EXDATE'] = array(); } } if ( ! isset( $event['DTSTART'] ) ) { continue; } // Process events with RRULE before other events. $rrule = isset( $event['RRULE'] ) ? $event['RRULE'] : false; $uid = isset( $event['UID'] ) ? $event['UID'] : false; if ( $rrule && $uid && ! in_array( $uid, $set_recurring_events, true ) ) { // Break down the RRULE into digestible chunks. $rrule_array = array(); foreach ( explode( ';', $event['RRULE'] ) as $rline ) { list( $rkey, $rvalue ) = explode( '=', $rline, 2 ); $rrule_array[ $rkey ] = $rvalue; } $interval = ( isset( $rrule_array['INTERVAL'] ) ) ? $rrule_array['INTERVAL'] : 1; $rrule_count = ( isset( $rrule_array['COUNT'] ) ) ? $rrule_array['COUNT'] : 0; $until = ( isset( $rrule_array['UNTIL'] ) ) ? strtotime( $rrule_array['UNTIL'] ) : strtotime( '+1 year', $current ); // Used to bound event checks. $echo_limit = 10; $noop = false; // Set bydays for the event. $weekdays = array( 'SU', 'MO', 'TU', 'WE', 'TH', 'FR', 'SA' ); $bydays = $weekdays; // Calculate a recent start date for incrementing depending on the frequency and interval. switch ( $rrule_array['FREQ'] ) { case 'DAILY': $frequency = 'day'; $echo_limit = 10; if ( $date_from_ics >= $current ) { $recurring_event_date_start = date( 'Ymd\THis', strtotime( $event['DTSTART'] ) ); } else { // Interval and count. $catchup = floor( ( $current - strtotime( $event['DTSTART'] ) ) / ( $interval DAY_IN_SECONDS ) ); if ( $rrule_count && $catchup > 0 ) { if ( $catchup < $rrule_count ) { $rrule_count = $rrule_count - $catchup; $recurring_event_date_start = date( 'Ymd', strtotime( '+ ' . ( $interval * $catchup ) . ' days', strtotime( $event['DTSTART'] ) ) ) . date( '\THis', strtotime( $event['DTSTART'] ) ); } else { $noop = true; } } else { $recurring_event_date_start = date( 'Ymd', strtotime( '+ ' . ( $interval * $catchup ) . ' days', strtotime( $event['DTSTART'] ) ) ) . date( '\THis', strtotime( $event['DTSTART'] ) ); } } break; case 'WEEKLY': $frequency = 'week'; $echo_limit = 4; // BYDAY exception to current date. $day = false; if ( ! isset( $rrule_array['BYDAY'] ) ) { $rrule_array['BYDAY'] = strtoupper( substr( date( 'D', strtotime( $event['DTSTART'] ) ), 0, 2 ) ); $day = $rrule_array['BYDAY']; } $bydays = explode( ',', $rrule_array['BYDAY'] ); if ( $date_from_ics >= $current ) { $recurring_event_date_start = date( 'Ymd\THis', strtotime( $event['DTSTART'] ) ); } else { // Interval and count. $catchup = floor( ( $current - strtotime( $event['DTSTART'] ) ) / ( $interval * WEEK_IN_SECONDS ) ); if ( $rrule_count && $catchup > 0 ) { if ( ( $catchup * count( $bydays ) ) < $rrule_count ) { $rrule_count = $rrule_count - ( $catchup * count( $bydays ) ); // Estimate current event count. $recurring_event_date_start = date( 'Ymd', strtotime( '+ ' . ( $interval * $catchup ) . ' weeks', strtotime( $event['DTSTART'] ) ) ) . date( '\THis', strtotime( $event['DTSTART'] ) ); } else { $noop = true; } } else { $recurring_event_date_start = date( 'Ymd', strtotime( '+ ' . ( $interval * $catchup ) . ' weeks', strtotime( $event['DTSTART'] ) ) ) . date( '\THis', strtotime( $event['DTSTART'] ) ); } } // Set to Sunday start. if ( ! $noop && 'SU' !== strtoupper( substr( date( 'D', strtotime( $recurring_event_date_start ) ), 0, 2 ) ) ) { $recurring_event_date_start = date( 'Ymd', strtotime( 'last Sunday', strtotime( $recurring_event_date_start ) ) ) . date( '\THis', strtotime( $event['DTSTART'] ) ); } break; case 'MONTHLY': $frequency = 'month'; $echo_limit = 1; if ( $date_from_ics >= $current ) { $recurring_event_date_start = date( 'Ymd\THis', strtotime( $event['DTSTART'] ) ); } else { // Describe the date in the month. if ( isset( $rrule_array['BYDAY'] ) && preg_match( '/^(-?\d)([A-Z]{2})/', $rrule_array['BYDAY'], $matches ) ) { $day_number = $matches[1]; $week_day = $matches[2]; $day_cardinals = array( -3 => 'third to last', -2 => 'second to last', -1 => 'last', 1 => 'first', 2 => 'second', 3 => 'third', 4 => 'fourth', 5 => 'fifth', ); $weekdays = array( 'SU' => 'Sunday', 'MO' => 'Monday', 'TU' => 'Tuesday', 'WE' => 'Wednesday', 'TH' => 'Thursday', 'FR' => 'Friday', 'SA' => 'Saturday', ); $day_cardinal = $day_cardinals[ $day_number ] ?? ''; $weekday = $weekdays[ $week_day ] ?? ''; $event_date_desc = "$day_cardinal $weekday of "; } else { $event_date_desc = date( 'd ', strtotime( $event['DTSTART'] ) ); } // Interval only. if ( $interval > 1 ) { $catchup = 0; $maybe = strtotime( $event['DTSTART'] ); while ( $maybe < $current ) { $maybe = strtotime( '+ ' . ( $interval * $catchup ) . ' months', strtotime( $event['DTSTART'] ) ); ++$catchup; } $recurring_event_date_start = date( 'Ymd', strtotime( $event_date_desc . date( 'F Y', strtotime( '+ ' . ( $interval * ( $catchup - 1 ) ) . ' months', strtotime( $event['DTSTART'] ) ) ) ) ) . date( '\THis', strtotime( $event['DTSTART'] ) ); } else { $recurring_event_date_start = date( 'Ymd', strtotime( $event_date_desc . date( 'F Y', $current ) ) ) . date( '\THis', strtotime( $event['DTSTART'] ) ); } // Add one interval if necessary. if ( strtotime( $recurring_event_date_start ) < $current ) { if ( $interval > 1 ) { $recurring_event_date_start = date( 'Ymd', strtotime( $event_date_desc . date( 'F Y', strtotime( '+ ' . ( $interval * $catchup ) . ' months', strtotime( $event['DTSTART'] ) ) ) ) ) . date( '\THis', strtotime( $event['DTSTART'] ) ); } else { try { $adjustment = new DateTime( date( 'Y-m-d', $current ) ); $adjustment->modify( 'first day of next month' ); $recurring_event_date_start = date( 'Ymd', strtotime( $event_date_desc . $adjustment->format( 'F Y' ) ) ) . date( '\THis', strtotime( $event['DTSTART'] ) ); } catch ( Exception $e ) { // phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedCatch // Invalid argument to DateTime. } } } } break; case 'YEARLY': $frequency = 'year'; $echo_limit = 1; if ( $date_from_ics >= $current ) { $recurring_event_date_start = date( 'Ymd\THis', strtotime( $event['DTSTART'] ) ); } else { $recurring_event_date_start = date( 'Y', $current ) . date( 'md\THis', strtotime( $event['DTSTART'] ) ); if ( strtotime( $recurring_event_date_start ) < $current ) { try { $next = new DateTime( date( 'Y-m-d', $current ) ); $next->modify( 'first day of next year' ); $recurring_event_date_start = $next->format( 'Y' ) . date( 'md\THis', strtotime( $event['DTSTART'] ) ); } catch ( Exception $e ) { // phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedCatch // Invalid argument to DateTime. } } } break; default: $frequency = false; } if ( false !== $frequency && ! $noop ) { $count_counter = 1; // If no COUNT limit, go to 10. if ( empty( $rrule_count ) ) { $rrule_count = 10; } // Set up EXDATE handling for the event. $exdates = ( isset( $event['EXDATE'] ) ) ? $event['EXDATE'] : array(); for ( $i = 1; $i <= $echo_limit; $i++ ) { // Weeks need a daily loop and must check for inclusion in BYDAYS. if ( 'week' === $frequency ) { $byday_event_date_start = strtotime( $recurring_event_date_start ); foreach ( $weekdays as $day ) { $event_start_timestamp = $byday_event_date_start; $start_time = date( 'His', $event_start_timestamp ); $event_end_timestamp = $event_start_timestamp + $duration; $end_time = date( 'His', $event_end_timestamp ); if ( 8 === strlen( $event['DTSTART'] ) ) { $exdate_compare = date( 'Ymd', $event_start_timestamp ); } else { $exdate_compare = date( 'Ymd\THis', $event_start_timestamp ); } if ( in_array( $day, $bydays, true ) && $event_end_timestamp > $current && $event_start_timestamp < $until && $count_counter <= $rrule_count && $event_start_timestamp >= $date_from_ics && ! in_array( $exdate_compare, $exdates, true ) ) { if ( 8 === strlen( $event['DTSTART'] ) ) { $event['DTSTART'] = date( 'Ymd', $event_start_timestamp ); $event['DTEND'] = date( 'Ymd', $event_end_timestamp ); } else { $event['DTSTART'] = date( 'Ymd\THis', $event_start_timestamp ); $event['DTEND'] = date( 'Ymd\THis', $event_end_timestamp ); } if ( $this->timezone->getName() && 8 !== strlen( $event['DTSTART'] ) ) { try { $adjusted_time = new DateTime( $event['DTSTART'], new DateTimeZone( $this->timezone->getName() ) ); $adjusted_time->setTimeZone( new DateTimeZone( 'UTC' ) ); $event['DTSTART'] = $adjusted_time->format( 'Ymd\THis' ); $event['DTEND'] = date( 'Ymd\THis', strtotime( $event['DTSTART'] ) + $duration ); } catch ( Exception $e ) { // phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedCatch // Invalid argument to DateTime. } } $upcoming[] = $event; ++$count_counter; } // Move forward one day. $byday_event_date_start = strtotime( date( 'Ymd\T', strtotime( '+ 1 day', $event_start_timestamp ) ) . $start_time ); } // Restore first event timestamp. $event_start_timestamp = strtotime( $recurring_event_date_start ); } else { $event_start_timestamp = strtotime( $recurring_event_date_start ); $start_time = date( 'His', $event_start_timestamp ); $event_end_timestamp = $event_start_timestamp + $duration; $end_time = date( 'His', $event_end_timestamp ); if ( 8 === strlen( $event['DTSTART'] ) ) { $exdate_compare = date( 'Ymd', $event_start_timestamp ); } else { $exdate_compare = date( 'Ymd\THis', $event_start_timestamp ); } if ( $event_end_timestamp > $current && $event_start_timestamp < $until && $count_counter <= $rrule_count && $event_start_timestamp >= $date_from_ics && ! in_array( $exdate_compare, $exdates, true ) ) { if ( 8 === strlen( $event['DTSTART'] ) ) { $event['DTSTART'] = date( 'Ymd', $event_start_timestamp ); $event['DTEND'] = date( 'Ymd', $event_end_timestamp ); } else { $event['DTSTART'] = date( 'Ymd\T', $event_start_timestamp ) . $start_time; $event['DTEND'] = date( 'Ymd\T', $event_end_timestamp ) . $end_time; } if ( $this->timezone->getName() && 8 !== strlen( $event['DTSTART'] ) ) { try { $adjusted_time = new DateTime( $event['DTSTART'], new DateTimeZone( $this->timezone->getName() ) ); $adjusted_time->setTimeZone( new DateTimeZone( 'UTC' ) ); $event['DTSTART'] = $adjusted_time->format( 'Ymd\THis' ); $event['DTEND'] = date( 'Ymd\THis', strtotime( $event['DTSTART'] ) + $duration ); } catch ( Exception $e ) { // phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedCatch // Invalid argument to DateTime. } } $upcoming[] = $event; ++$count_counter; } } // Set up next interval and reset $event['DTSTART'] and $event['DTEND'], keeping timestamps intact. $next_start_timestamp = strtotime( "+ {$interval} {$frequency}s", $event_start_timestamp ); if ( 8 === strlen( $event['DTSTART'] ) ) { $event['DTSTART'] = date( 'Ymd', $next_start_timestamp ); $event['DTEND'] = date( 'Ymd', strtotime( $event['DTSTART'] ) + $duration ); } else { $event['DTSTART'] = date( 'Ymd\THis', $next_start_timestamp ); $event['DTEND'] = date( 'Ymd\THis', strtotime( $event['DTSTART'] ) + $duration ); } // Move recurring event date forward. $recurring_event_date_start = $event['DTSTART']; } $set_recurring_events[] = $uid; } } elseif ( strtotime( isset( $event['DTEND'] ) ? $event['DTEND'] : $event['DTSTART'] ) >= $current ) { // Process normal events. $upcoming[] = $event; } } return $upcoming; } /** * Parse events from an iCalendar feed * * @param string $url (default: ''). * @return array \| false on failure / public function parse( $url = '' ) { $cache_group = 'icalendar_reader_parse'; $disable_get_key = 'disable:' . md5( $url ); // Check to see if previous attempts have failed. if ( false !== wp_cache_get( $disable_get_key, $cache_group ) ) { return false; } // rewrite webcal: URI scheme to HTTP. $url = preg_replace( '/^webcal/', 'http', $url ); // try to fetch. $r = wp_safe_remote_get( $url, array( 'timeout' => 3, 'sslverify' => false, ) ); if ( 200 !== wp_remote_retrieve_response_code( $r ) ) { // We were unable to fetch any content, so don't try again for another 60 seconds. wp_cache_set( $disable_get_key, 1, $cache_group, 60 ); return false; } $body = wp_remote_retrieve_body( $r ); if ( empty( $body ) ) { return false; } $body = str_replace( "\r\n", "\n", $body ); $lines = preg_split( "/\n(?=[A-Z])/", $body ); if ( empty( $lines ) ) { return false; } if ( false === stristr( $lines[0], 'BEGIN:VCALENDAR' ) ) { return false; } $type = ''; foreach ( $lines as $line ) { $add = $this->key_value_from_string( $line ); if ( ! $add ) { $this->add_component( $type, false, $line ); continue; } list( $keyword, $value ) = $add; switch ( $keyword ) { case 'BEGIN': case 'END': switch ( $line ) { case 'BEGIN:VTODO': ++$this->todo_count; $type = 'VTODO'; break; case 'BEGIN:VEVENT': ++$this->event_count; $type = 'VEVENT'; break; case 'BEGIN:VCALENDAR': case 'BEGIN:DAYLIGHT': case 'BEGIN:VTIMEZONE': case 'BEGIN:STANDARD': $type = $value; break; case 'END:VTODO': case 'END:VEVENT': case 'END:VCALENDAR': case 'END:DAYLIGHT': case 'END:VTIMEZONE': case 'END:STANDARD': $type = 'VCALENDAR'; break; } break; case 'TZID': if ( 'VTIMEZONE' === $type && ! $this->timezone ) { $this->timezone = $this->timezone_from_string( $value ); } break; case 'X-WR-TIMEZONE': if ( ! $this->timezone ) { $this->timezone = $this->timezone_from_string( $value ); } break; default: $this->add_component( $type, $keyword, $value ); break; } } // Filter for RECURRENCE-IDs. $recurrences = array(); if ( array_key_exists( 'VEVENT', $this->cal ) ) { foreach ( $this->cal['VEVENT'] as $event ) { if ( isset( $event['RECURRENCE-ID'] ) ) { $recurrences[] = $event; } } foreach ( $recurrences as $recurrence ) { $count_vevent = count( $this->cal['VEVENT'] ); for ( $i = 0; $i < $count_vevent; $i++ ) { if ( $this->cal['VEVENT'][ $i ]['UID'] === $recurrence['UID'] && ! isset( $this->cal['VEVENT'][ $i ]['RECURRENCE-ID'] ) ) { $this->cal['VEVENT'][ $i ]['EXDATE'][] = $recurrence['RECURRENCE-ID']; break; } } } } return $this->cal; } /* * Parse key:value from a string * * @param string $text (default: ''). * @return array / public function key_value_from_string( $text = '' ) { preg_match( '/([^:]+)(;[^:]+)?[:]([\w\W])/', $text, $matches ); if ( 0 === count( $matches ) ) { return false; } return array( $matches[1], $matches[3] ); } /** * Convert a timezone name into a timezone object. * * @param string $text Timezone name. Example: America/Chicago. * @return object\|null A DateTimeZone object if the conversion was successful. / private function timezone_from_string( $text ) { try { $timezone = new DateTimeZone( $text ); } catch ( Exception $e ) { $blog_timezone = get_option( 'timezone_string' ); if ( ! $blog_timezone ) { $blog_timezone = 'Etc/UTC'; } $timezone = new DateTimeZone( $blog_timezone ); } return $timezone; } /* * Add a component to the calendar array * * @param string $component (default: ''). * @param bool\|string $keyword (default: ''). * @param string $value (default: ''). * @return void / public function add_component( $component = '', $keyword = '', $value = '' ) { if ( ! $keyword ) { $keyword = $this->last_keyword; switch ( $component ) { case 'VEVENT': $value = $this->cal[ $component ][ $this->event_count - 1 ][ $keyword ] . $value; break; case 'VTODO': $value = $this->cal[ $component ][ $this->todo_count - 1 ][ $keyword ] . $value; break; } } / * Some events have a specific timezone set in their start/end date, * and it may or may not be different than the calendar timzeone. * Valid formats include: * DTSTART;TZID=Pacific Standard Time:20141219T180000 * DTEND;TZID=Pacific Standard Time:20141219T200000 * EXDATE:19960402T010000Z,19960403T010000Z,19960404T010000Z * EXDATE;VALUE=DATE:2015050 * EXDATE;TZID=America/New_York:20150424T170000 * EXDATE;TZID=Pacific Standard Time:20120615T140000,20120629T140000,20120706T140000 / // Always store EXDATE as an array. if ( stristr( $keyword, 'EXDATE' ) ) { $value = explode( ',', $value ); } // Adjust DTSTART, DTEND, and EXDATE according to their TZID if set. if ( strpos( $keyword, ';' ) && ( stristr( $keyword, 'DTSTART' ) \|\| stristr( $keyword, 'DTEND' ) \|\| stristr( $keyword, 'EXDATE' ) \|\| stristr( $keyword, 'RECURRENCE-ID' ) ) ) { $keyword = explode( ';', $keyword ); $tzid = false; if ( 2 === count( $keyword ) ) { $tparam = $keyword[1]; if ( str_contains( $tparam, 'TZID' ) ) { $tzid = $this->timezone_from_string( str_replace( 'TZID=', '', $tparam ) ); } } // Normalize all times to default UTC. if ( $tzid ) { $adjusted_times = array(); foreach ( (array) $value as $v ) { try { $adjusted_time = new DateTime( $v, $tzid ); $adjusted_time->setTimeZone( new DateTimeZone( 'UTC' ) ); $adjusted_times[] = $adjusted_time->format( 'Ymd\THis' ); } catch ( Exception $e ) { // Invalid argument to DateTime. return; } } $value = $adjusted_times; } // Format for adding to event. $keyword = $keyword[0]; if ( 'EXDATE' !== $keyword ) { $value = implode( (array) $value ); } } foreach ( (array) $value as $v ) { switch ( $component ) { case 'VTODO': if ( 'EXDATE' === $keyword ) { $this->cal[ $component ][ $this->todo_count - 1 ][ $keyword ][] = $v; } else { $this->cal[ $component ][ $this->todo_count - 1 ][ $keyword ] = $v; } break; case 'VEVENT': if ( 'EXDATE' === $keyword ) { $this->cal[ $component ][ $this->event_count - 1 ][ $keyword ][] = $v; } else { $this->cal[ $component ][ $this->event_count - 1 ][ $keyword ] = $v; } break; default: $this->cal[ $component ][ $keyword ] = $v; break; } } $this->last_keyword = $keyword; } /* * Escape strings with wp_kses, allow links * * @param string $string (default: '') The string to escape. * @return string / public function escape( $string = '' ) { // Unfold content lines per RFC 5545. $string = str_replace( "\n\t", '', $string ); $string = str_replace( "\n ", '', $string ); $allowed_html = array( 'a' => array( 'href' => array(), 'title' => array(), ), ); $allowed_tags = ''; foreach ( array_keys( $allowed_html ) as $tag ) { $allowed_tags .= "<{$tag}>"; } // Running strip_tags() first with allowed tags to get rid of remaining gallery markup, etc // because wp_kses() would only htmlentity'fy that. Then still running wp_kses(), for extra // safety and good measure. return wp_kses( strip_tags( $string, $allowed_tags ), $allowed_html ); } /* * Render the events * * @param string $url (default: '') URL of the iCal feed. * @param array $args Event options. * * @return mixed bool\|string false on failure, rendered HTML string on success. / public function render( $url = '', $args = array() ) { $args = wp_parse_args( $args, array( 'context' => 'widget', 'number' => 5, ) ); $events = $this->get_events( $url, $args['number'] ); $events = $this->apply_timezone_offset( $events ); if ( empty( $events ) ) { return false; } ob_start(); if ( 'widget' === $args['context'] ) : ?> <ul class="upcoming-events"> <?php foreach ( $events as $event ) : ?> <li> <strong class="event-summary"> <?php echo $this->escape( stripslashes( $event['SUMMARY'] ) ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- this method is built to escape. ?> </strong> <span class="event-when"><?php echo esc_html( $this->formatted_date( $event ) ); ?></span> <?php if ( ! empty( $event['LOCATION'] ) ) : ?> <span class="event-location"> <?php echo $this->escape( stripslashes( $event['LOCATION'] ) ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- this method is built to escape. ?> </span> <?php endif; ?> <?php if ( ! empty( $event['DESCRIPTION'] ) ) : ?> <span class="event-description"> <?php echo wp_trim_words( $this->escape( stripcslashes( $event['DESCRIPTION'] ) ) ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- this method is built to escape. ?> </span> <?php endif; ?> </li> <?php endforeach; ?> </ul> <?php endif; if ( 'shortcode' === $args['context'] ) : ?> <table class="upcoming-events"> <thead> <tr> <th><?php esc_html_e( 'Location', 'jetpack' ); ?></th> <th><?php esc_html_e( 'When', 'jetpack' ); ?></th> <th><?php esc_html_e( 'Summary', 'jetpack' ); ?></th> <th><?php esc_html_e( 'Description', 'jetpack' ); ?></th> </tr> </thead> <tbody> <?php foreach ( $events as $event ) : ?> <tr> <td> <?php echo empty( $event['LOCATION'] ) ? ' ' : $this->escape( stripslashes( $event['LOCATION'] ) ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- this method is built to escape. ?> </td> <td><?php echo esc_html( $this->formatted_date( $event ) ); ?></td> <td> <?php echo empty( $event['SUMMARY'] ) ? ' ' : $this->escape( stripslashes( $event['SUMMARY'] ) ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- this method is built to escape. ?> </td> <td> <?php echo empty( $event['DESCRIPTION'] ) ? ' ' : wp_trim_words( $this->escape( stripcslashes( $event['DESCRIPTION'] ) ) ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- this method is built to escape. ?> </td> </tr> <?php endforeach; ?> </tbody> </table> <?php endif; $rendered = ob_get_clean(); if ( empty( $rendered ) ) { return false; } return $rendered; } /* * Return a localized string with information about the event's date and time, * or starting date and end date. * * @param array $event Info about the event. * * @return string / public function formatted_date( $event ) { $date_format = get_option( 'date_format' ); $time_format = get_option( 'time_format' ); $start = strtotime( $event['DTSTART'] ); $end = isset( $event['DTEND'] ) ? strtotime( $event['DTEND'] ) : false; $all_day = ( 8 === strlen( $event['DTSTART'] ) ); if ( ! $all_day && $this->timezone ) { try { $timezone_offset = $this->timezone->getOffset( new DateTime( $event['DTSTART'] ) ); $start += $timezone_offset; if ( $end ) { $end += $timezone_offset; } } catch ( Exception $e ) { // Invalid argument to DateTime. return ''; } } $single_day = $end ? ( $end - $start ) <= DAY_IN_SECONDS : true; / translators: Date and time / $date_with_time = __( '%1$s at %2$s', 'jetpack' ); / translators: Two dates with a separator / $two_dates = __( '%1$s – %2$s', 'jetpack' ); // we'll always have the start date. Maybe with time. if ( $all_day ) { $date = date_i18n( $date_format, $start ); } else { $date = sprintf( $date_with_time, date_i18n( $date_format, $start ), date_i18n( $time_format, $start ) ); } // single day, timed. if ( $single_day && ! $all_day && false !== $end ) { $date = sprintf( $two_dates, $date, date_i18n( $time_format, $end ) ); } // multi-day. if ( ! $single_day ) { if ( $all_day ) { // DTEND for multi-day events represents "until", not "including", so subtract one minute. $end_date = date_i18n( $date_format, $end - 60 ); } else { $end_date = sprintf( $date_with_time, date_i18n( $date_format, $end ), date_i18n( $time_format, $end ) ); } $date = sprintf( $two_dates, $date, $end_date ); } return $date; } /* * Sort list of events by event date. * * @param array $list List of events. * * @return array / protected function sort_by_recent( $list ) { $dates = array(); $sorted_list = array(); foreach ( $list as $key => $row ) { $date = $row['DTSTART']; // pad some time onto an all day date. if ( 8 === strlen( $date ) ) { $date .= 'T000000Z'; } $dates[ $key ] = $date; } asort( $dates ); foreach ( $dates as $key => $value ) { $sorted_list[ $key ] = $list[ $key ]; } unset( $list ); return $sorted_list; } // phpcs:enable WordPress.DateTime.RestrictedFunctions.date_date } /* * Wrapper function for iCalendarReader->get_events() * * @param string $url (default: ''). * @param int $count Number of events to fetch. * @return array / function icalendar_get_events( $url = '', $count = 5 ) { / * Find your calendar's address * https://support.google.com/calendar/bin/answer.py?hl=en&answer=37103 / return ( new iCalendarReader() )->get_events( $url, $count ); } /* * Wrapper function for iCalendarReader->render() * * @param string $url (default: ''). * @param array $args Options when rendering events. * * @return mixed bool\|string false on failure, rendered HTML string on success. */ function icalendar_render_events( $url = '', $args = array() ) { return ( new iCalendarReader() )->render( $url, $args ); }

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