mirror of
https://gitlab.com/davical-project/davical.git
synced 2026-01-27 00:33:34 +00:00
488 lines
20 KiB
PHP
488 lines
20 KiB
PHP
<?php
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include_once('DAVResource.php');
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class WritableCollection extends DAVResource {
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/**
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* Get a TZID string from this VEVENT/VTODO/... component if we can
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* @param vComponent $comp
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* @return The TZID value we found, or null
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*/
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private static function GetTZID( vComponent $comp ) {
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$p = $comp->GetProperty('DTSTART');
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if ( !isset($p) && $comp->GetType() == 'VTODO' ) {
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$p = $comp->GetProperty('DUE');
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}
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if ( !isset($p) ) return null;
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return $p->GetParameterValue('TZID');
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}
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/**
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* Writes the data to a member in the collection and returns the segment_name of the
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* resource in our internal namespace.
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*
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* @param vCalendar $vcal The resource to be written.
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* @param boolean $create_resource True if this is a new resource.
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* @param boolean $do_scheduling True if we should also do scheduling for this write. Default false.
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* @param string $segment_name The name of the resource within the collection, or null if this
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* call should invent one based on the UID of the vCalendar.
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* @param boolean $log_action Whether to log this action. Defaults to false since this is normally called
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* in situations where one is writing secondary data.
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* @return string The segment_name of the resource within the collection, as written, or false on failure.
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*/
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function WriteCalendarMember( vCalendar $vcal, $create_resource, $do_scheduling=false, $segment_name = null, $log_action=false ) {
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if ( !$this->IsSchedulingCollection() && !$this->IsCalendar() ) {
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dbg_error_log( 'PUT', '"%s" is not a calendar or scheduling collection!', $this->dav_name);
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return false;
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}
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global $session, $caldav_context;
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$resources = $vcal->GetComponents('VTIMEZONE',false); // Not matching VTIMEZONE
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$user_no = $this->user_no();
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$collection_id = $this->collection_id();
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if ( !isset($resources[0]) ) {
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dbg_error_log( 'PUT', 'No calendar content!');
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rollback_on_error( $caldav_context, $user_no, $this->dav_name.'/'.$segment_name, translate('No calendar content'), 412 );
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return false;
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}
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else {
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$first = $resources[0];
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$resource_type = $first->GetType();
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}
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$uid = $vcal->GetUID();
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if ( empty($segment_name) ) {
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$segment_name = $uid.'.ics';
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}
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$path = $this->dav_name() . $segment_name;
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$caldav_data = $vcal->Render();
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$etag = md5($caldav_data);
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$weak_etag = null;
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$qry = new AwlQuery();
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$existing_transaction_state = $qry->TransactionState();
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if ( $existing_transaction_state == 0 ) $qry->Begin();
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if ( $create_resource ) {
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$qry->QDo('SELECT nextval(\'dav_id_seq\') AS dav_id');
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}
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else {
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$qry->QDo('SELECT dav_id FROM caldav_data WHERE dav_name = :dav_name ', array(':dav_name' => $path));
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}
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if ( $qry->rows() != 1 || !($row = $qry->Fetch()) ) {
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if ( !$create_resource ) {
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// Looks like we will have to create it, even if the caller thought we wouldn't
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$qry->QDo('SELECT nextval(\'dav_id_seq\') AS dav_id');
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if ( $qry->rows() != 1 || !($row = $qry->Fetch()) ) {
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// No dav_id? => We're toast!
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trace_bug( 'No dav_id for "%s" on %s!!!', $path, ($create_resource ? 'create': 'update'));
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rollback_on_error( $caldav_context, $user_no, $path);
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return false;
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}
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$create_resource = true;
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dbg_error_log( 'PUT', 'Unexpected need to create resource at "%s"', $path);
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}
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}
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$dav_id = $row->dav_id;
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$calitem_params = array(
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':dav_name' => $path,
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':user_no' => $user_no,
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':etag' => $etag,
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':dav_id' => $dav_id
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);
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$dav_params = array_merge($calitem_params, array(
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':dav_data' => $caldav_data,
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':caldav_type' => $resource_type,
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':session_user' => $session->user_no,
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':weak_etag' => $weak_etag
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) );
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if ( !$this->IsSchedulingCollection() && $do_scheduling ) {
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if ( do_scheduling_requests($vcal, $create_resource ) ) {
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$dav_params[':dav_data'] = $vcal->Render(null, true);
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$etag = null;
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}
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}
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if ( $create_resource ) {
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$sql = 'INSERT INTO caldav_data ( dav_id, user_no, dav_name, dav_etag, caldav_data, caldav_type, logged_user, created, modified, collection_id, weak_etag )
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VALUES( :dav_id, :user_no, :dav_name, :etag, :dav_data, :caldav_type, :session_user, current_timestamp, current_timestamp, :collection_id, :weak_etag )';
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$dav_params[':collection_id'] = $collection_id;
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}
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else {
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$sql = 'UPDATE caldav_data SET caldav_data=:dav_data, dav_etag=:etag, caldav_type=:caldav_type, logged_user=:session_user,
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modified=current_timestamp, weak_etag=:weak_etag WHERE dav_id=:dav_id';
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}
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if ( !$qry->QDo($sql,$dav_params) ) {
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rollback_on_error( $caldav_context, $user_no, $path);
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return false;
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}
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$dtstart = $first->GetPValue('DTSTART');
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$calitem_params[':dtstart'] = $dtstart;
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if ( (!isset($dtstart) || $dtstart == '') && $first->GetPValue('DUE') != '' ) {
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$dtstart = $first->GetPValue('DUE');
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}
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$dtend = $first->GetPValue('DTEND');
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if ( isset($dtend) && $dtend != '' ) {
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dbg_error_log( 'PUT', ' DTEND: "%s", DTSTART: "%s", DURATION: "%s"', $dtend, $dtstart, $first->GetPValue('DURATION') );
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$calitem_params[':dtend'] = $dtend;
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$dtend = ':dtend';
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}
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else {
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$dtend = 'NULL';
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if ( $first->GetPValue('DURATION') != '' AND $dtstart != '' ) {
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$duration = preg_replace( '#[PT]#', ' ', $first->GetPValue('DURATION') );
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$dtend = '(:dtstart::timestamp with time zone + :duration::interval)';
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$calitem_params[':duration'] = $duration;
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}
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elseif ( $first->GetType() == 'VEVENT' ) {
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/**
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* From RFC2445 4.6.1:
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* For cases where a "VEVENT" calendar component specifies a "DTSTART"
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* property with a DATE data type but no "DTEND" property, the events
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* non-inclusive end is the end of the calendar date specified by the
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* "DTSTART" property. For cases where a "VEVENT" calendar component specifies
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* a "DTSTART" property with a DATE-TIME data type but no "DTEND" property,
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* the event ends on the same calendar date and time of day specified by the
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* "DTSTART" property.
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*
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* So we're looking for 'VALUE=DATE', to identify the duration, effectively.
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*
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*/
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$value_type = $first->GetPParamValue('DTSTART','VALUE');
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dbg_error_log('PUT','DTSTART without DTEND. DTSTART value type is %s', $value_type );
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if ( isset($value_type) && $value_type == 'DATE' )
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$dtend = '(:dtstart::timestamp with time zone::date + \'1 day\'::interval)';
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else
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$dtend = ':dtstart';
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}
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}
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$last_modified = $first->GetPValue('LAST-MODIFIED');
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if ( !isset($last_modified) || $last_modified == '' ) {
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$last_modified = gmdate( 'Ymd\THis\Z' );
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}
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$calitem_params[':modified'] = $last_modified;
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$dtstamp = $first->GetPValue('DTSTAMP');
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if ( !isset($dtstamp) || $dtstamp == '' ) {
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$dtstamp = $last_modified;
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}
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$calitem_params[':dtstamp'] = $dtstamp;
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$class = $first->GetPValue('CLASS');
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/*
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* It seems that some calendar clients don't set a class...
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* RFC2445, 4.8.1.3: Default is PUBLIC
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*/
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if ( $this->IsPublicOnly() || !isset($class) || $class == '' ) {
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$class = 'PUBLIC';
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}
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$calitem_params[':class'] = $class;
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/** Calculate what timezone to set, first, if possible */
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$last_olson = 'Turkmenikikamukau'; // I really hope this location doesn't exist!
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$tzid = self::GetTZID($first);
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if ( !empty($tzid) ) {
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$tz = $vcal->GetTimeZone($tzid);
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$olson = $vcal->GetOlsonName($tz);
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if ( !empty($olson) && ($olson != $last_olson) ) {
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dbg_error_log( 'PUT', ' Setting timezone to %s', $olson );
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$qry->QDo('SET TIMEZONE TO \''.$olson."'" );
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$last_olson = $olson;
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}
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}
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$created = $first->GetPValue('CREATED');
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if ( $created == '00001231T000000Z' ) $created = '20001231T000000Z';
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$calitem_params[':created'] = $created;
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$calitem_params[':tzid'] = $tzid;
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$calitem_params[':uid'] = $uid;
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$calitem_params[':summary'] = $first->GetPValue('SUMMARY');
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$calitem_params[':location'] = $first->GetPValue('LOCATION');
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$calitem_params[':transp'] = $first->GetPValue('TRANSP');
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$calitem_params[':description'] = $first->GetPValue('DESCRIPTION');
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$calitem_params[':rrule'] = $first->GetPValue('RRULE');
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$calitem_params[':url'] = $first->GetPValue('URL');
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$calitem_params[':priority'] = $first->GetPValue('PRIORITY');
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$calitem_params[':due'] = $first->GetPValue('DUE');
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$calitem_params[':percent_complete'] = $first->GetPValue('PERCENT-COMPLETE');
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$calitem_params[':status'] = $first->GetPValue('STATUS');
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if ( $create_resource ) {
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$sql = <<<EOSQL
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INSERT INTO calendar_item (user_no, dav_name, dav_id, dav_etag, uid, dtstamp,
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dtstart, dtend, summary, location, class, transp,
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description, rrule, tz_id, last_modified, url, priority,
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created, due, percent_complete, status, collection_id )
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VALUES ( :user_no, :dav_name, currval('dav_id_seq'), :etag, :uid, :dtstamp,
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:dtstart, $dtend, :summary, :location, :class, :transp,
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:description, :rrule, :tzid, :modified, :url, :priority,
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:created, :due, :percent_complete, :status, $collection_id )
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EOSQL;
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$sync_change = 201;
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}
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else {
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$sql = <<<EOSQL
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UPDATE calendar_item SET dav_etag=:etag, uid=:uid, dtstamp=:dtstamp,
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dtstart=:dtstart, dtend=$dtend, summary=:summary, location=:location, class=:class, transp=:transp,
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description=:description, rrule=:rrule, tz_id=:tzid, last_modified=:modified, url=:url, priority=:priority,
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created=:created, due=:due, percent_complete=:percent_complete, status=:status
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WHERE user_no=:user_no AND dav_name=:dav_name
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EOSQL;
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$sync_change = 200;
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}
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if ( !$this->IsSchedulingCollection() ) {
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$this->WriteCalendarAlarms($dav_id, $vcal);
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$this->WriteCalendarAttendees($dav_id, $vcal);
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if ( $log_action && function_exists('log_caldav_action') ) {
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log_caldav_action( $put_action_type, $first->GetPValue('UID'), $user_no, $collection_id, $path );
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}
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else if ( $log_action ) {
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dbg_error_log( 'PUT', 'No log_caldav_action( %s, %s, %s, %s, %s) can be called.',
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$put_action_type, $first->GetPValue('UID'), $user_no, $collection_id, $path );
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}
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}
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$qry = new AwlQuery( $sql, $calitem_params );
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if ( !$qry->Exec('PUT',__LINE__,__FILE__) ) {
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rollback_on_error( $caldav_context, $user_no, $path);
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return false;
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}
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$qry->QDo("SELECT write_sync_change( $collection_id, $sync_change, :dav_name)", array(':dav_name' => $path ) );
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if ( $existing_transaction_state == 0 ) $qry->Commit();
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dbg_error_log( 'PUT', 'User: %d, ETag: %s, Path: %s', $session->user_no, $etag, $path);
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return $segment_name;
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}
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/**
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* Writes the data to a member in the collection and returns the segment_name of the
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* resource in our internal namespace.
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*
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* A caller who wants scheduling not to happen for this write must already
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* know they are dealing with a calendar, so should be calling WriteCalendarMember
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* directly.
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*
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* @param $resource mixed The resource to be written.
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* @param $create_resource boolean True if this is a new resource.
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* @param $segment_name The name of the resource within the collection, or false on failure.
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* @param boolean $log_action Whether to log this action. Defaults to true since this is normally called
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* in situations where one is writing primary data.
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* @return string The segment_name that was given, or one that was assigned if null was given.
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*/
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function WriteMember( $resource, $create_resource, $segment_name = null, $log_action=true ) {
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if ( ! $this->IsCollection() ) {
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dbg_error_log( 'PUT', '"%s" is not a collection path', $this->dav_name);
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return false;
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}
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if ( ! is_object($resource) ) {
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dbg_error_log( 'PUT', 'No data supplied!' );
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return false;
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}
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if ( $resource instanceof vCalendar ) {
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return $this->WriteCalendarMember($resource,$create_resource,true,$segment_name,$log_action);
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}
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else if ( $resource instanceof VCard )
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return $this->WriteAddressbookMember($resource,$create_resource,$segment_name, $log_action);
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return $segment_name;
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}
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/**
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* Given a dav_id and an original vCalendar, pull out each of the VALARMs
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* and write the values into the calendar_alarm table.
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*
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* @return null
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*/
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function WriteCalendarAlarms( $dav_id, vCalendar $vcal ) {
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$qry = new AwlQuery('DELETE FROM calendar_alarm WHERE dav_id = '.$dav_id );
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$qry->Exec('PUT',__LINE__,__FILE__);
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$components = $vcal->GetComponents();
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$qry->SetSql('INSERT INTO calendar_alarm ( dav_id, action, trigger, summary, description, component, next_trigger )
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VALUES( '.$dav_id.', :action, :trigger, :summary, :description, :component,
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:related::timestamp with time zone + :related_trigger::interval )' );
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$qry->Prepare();
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foreach( $components AS $component ) {
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if ( $component->GetType() == 'VTIMEZONE' ) continue;
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$alarms = $component->GetComponents('VALARM');
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if ( count($alarms) < 1 ) return;
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foreach( $alarms AS $v ) {
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$trigger = array_merge($v->GetProperties('TRIGGER'));
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if ( $trigger == null ) continue; // Bogus data.
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$trigger = $trigger[0];
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$related = null;
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$related_trigger = '0M';
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$trigger_type = $trigger->GetParameterValue('VALUE');
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if ( !isset($trigger_type) || $trigger_type == 'DURATION' ) {
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switch ( $trigger->GetParameterValue('RELATED') ) {
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case 'DTEND': $related = $component->GetPValue('DTEND'); break;
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case 'DUE': $related = $component->GetPValue('DUE'); break;
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default: $related = $component->GetPValue('DTSTART');
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}
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$duration = $trigger->Value();
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if ( !preg_match('{^-?P(:?\d+W)?(:?\d+D)?(:?T(:?\d+H)?(:?\d+M)?(:?\d+S)?)?$}', $duration ) ) continue;
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$minus = (substr($duration,0,1) == '-');
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$related_trigger = trim(preg_replace( '#[PT-]#', ' ', $duration ));
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if ( $minus ) {
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$related_trigger = preg_replace( '{(\d+[WDHMS])}', '-$1 ', $related_trigger );
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}
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else {
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$related_trigger = preg_replace( '{(\d+[WDHMS])}', '$1 ', $related_trigger );
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}
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}
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else {
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if ( false === strtotime($trigger->Value()) ) continue; // Invalid date.
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}
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$qry->Bind(':action', $v->GetPValue('ACTION'));
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$qry->Bind(':trigger', $trigger->Render());
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$qry->Bind(':summary', $v->GetPValue('SUMMARY'));
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$qry->Bind(':description', $v->GetPValue('DESCRIPTION'));
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$qry->Bind(':component', $v->Render());
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$qry->Bind(':related', $related );
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$qry->Bind(':related_trigger', $related_trigger );
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$qry->Exec('PUT',__LINE__,__FILE__);
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}
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}
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}
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/**
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* Parse out the attendee property and write a row to the
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* calendar_attendee table for each one.
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* @param int $dav_id The dav_id of the caldav_data we're processing
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* @param vComponent The VEVENT or VTODO containing the ATTENDEEs
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* @return null
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*/
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function WriteCalendarAttendees( $dav_id, vCalendar $vcal ) {
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$qry = new AwlQuery('DELETE FROM calendar_attendee WHERE dav_id = '.$dav_id );
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$qry->Exec('PUT',__LINE__,__FILE__);
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$attendees = $vcal->GetAttendees();
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if ( count($attendees) < 1 ) return;
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$qry->SetSql('INSERT INTO calendar_attendee ( dav_id, status, partstat, cn, attendee, role, rsvp, property )
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VALUES( '.$dav_id.', :status, :partstat, :cn, :attendee, :role, :rsvp, :property )' );
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$qry->Prepare();
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$processed = array();
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foreach( $attendees AS $v ) {
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$attendee = $v->Value();
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if ( isset($processed[$attendee]) ) {
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dbg_error_log( 'LOG', 'Duplicate attendee "%s" in resource "%d"', $attendee, $dav_id );
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dbg_error_log( 'LOG', 'Original: "%s"', $processed[$attendee] );
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dbg_error_log( 'LOG', 'Duplicate: "%s"', $v->Render() );
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continue; /** @todo work out why we get duplicate ATTENDEE on one VEVENT */
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}
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$qry->Bind(':attendee', $attendee );
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$qry->Bind(':status', $v->GetParameterValue('STATUS') );
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$qry->Bind(':partstat', $v->GetParameterValue('PARTSTAT') );
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$qry->Bind(':cn', $v->GetParameterValue('CN') );
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$qry->Bind(':role', $v->GetParameterValue('ROLE') );
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$qry->Bind(':rsvp', $v->GetParameterValue('RSVP') );
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$qry->Bind(':property', $v->Render() );
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$qry->Exec('PUT',__LINE__,__FILE__);
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$processed[$attendee] = $v->Render();
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}
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}
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/**
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* Writes the data to a member in the collection and returns the segment_name of the
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* resource in our internal namespace.
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*
|
|
* @param vCalendar $member_dav_name The path to the resource to be deleted.
|
|
* @return boolean Success is true, or false on failure.
|
|
*/
|
|
function actualDeleteCalendarMember( $member_dav_name ) {
|
|
global $session, $caldav_context;
|
|
|
|
// A quick sanity check...
|
|
$segment_name = str_replace( $this->dav_name(), '', $member_dav_name );
|
|
if ( strstr($segment_name, '/') !== false ) {
|
|
@dbg_error_log( "DELETE", "DELETE: Refused to delete member '%s' from calendar '%s'!", $member_dav_name, $this->dav_name() );
|
|
return false;
|
|
}
|
|
|
|
// We need to serialise access to this process just for this collection
|
|
$cache = getCacheInstance();
|
|
$myLock = $cache->acquireLock('collection-'.$this->dav_name());
|
|
|
|
$qry = new AwlQuery();
|
|
$params = array( ':dav_name' => $member_dav_name );
|
|
|
|
if ( $qry->QDo("SELECT write_sync_change(collection_id, 404, caldav_data.dav_name) FROM caldav_data WHERE dav_name = :dav_name", $params )
|
|
&& $qry->QDo("DELETE FROM property WHERE dav_name = :dav_name", $params )
|
|
&& $qry->QDo("DELETE FROM locks WHERE dav_name = :dav_name", $params )
|
|
&& $qry->QDo("DELETE FROM caldav_data WHERE dav_name = :dav_name", $params ) ) {
|
|
@dbg_error_log( "DELETE", "DELETE: Calendar member %s deleted from calendar '%s'", $member_dav_name, $this->dav_name() );
|
|
|
|
$cache->releaseLock($myLock);
|
|
|
|
return true;
|
|
}
|
|
|
|
$cache->releaseLock($myLock);
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
* @param unknown_type $some_old_token
|
|
*/
|
|
public function whatChangedSince( $some_old_token ) {
|
|
$params = array( ':collection_id' => $this->collection_id() );
|
|
if ( $some_old_token == 0 || empty($some_old_token) ) {
|
|
$sql = <<<EOSQL
|
|
SELECT calendar_item.*, caldav_data.*, addressbook_resource.*, 201 AS sync_status
|
|
FROM caldav_data
|
|
LEFT JOIN calendar_item USING (dav_id)
|
|
LEFT JOIN addressbook_resource USING (dav_id)
|
|
WHERE caldav_data.collection_id = :collection_id
|
|
ORDER BY caldav_data.collection_id, caldav_data.dav_id
|
|
EOSQL;
|
|
}
|
|
else {
|
|
$params[':sync_token'] = $some_old_token;
|
|
$sql = <<<EOSQL
|
|
SELECT calendar_item.*, caldav_data.*, addressbook_resource.*, sync_changes.*
|
|
FROM sync_changes
|
|
LEFT JOIN caldav_data USING (collection_id,dav_id)
|
|
LEFT JOIN calendar_item USING (collection_id,dav_id)
|
|
LEFT JOIN addressbook_resource USING (dav_id)
|
|
WHERE sync_changes.collection_id = :collection_id
|
|
AND sync_time >= (SELECT modification_time FROM sync_tokens WHERE sync_token = :sync_token)
|
|
ORDER BY sync_changes.collection_id, sync_changes.dav_id, sync_changes.sync_time
|
|
EOSQL;
|
|
|
|
}
|
|
$qry = new AwlQuery($sql, $params );
|
|
|
|
$changes = array();
|
|
if ( $qry->Exec() && $qry->rows() ) {
|
|
while( $change = $qry->Fetch() ) {
|
|
$changes[$change->uid] = $change;
|
|
}
|
|
}
|
|
|
|
return $changes;
|
|
}
|
|
}
|