mirror of
https://gitlab.com/davical-project/davical.git
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323 lines
14 KiB
PHP
323 lines
14 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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* 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 $tz_regex, $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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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 = $first->GetPValue('UID');
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if ( empty($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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// No dav_id? => We're toast!
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dbg_error_log( 'PUT', 'No dav_id!!!', $path);
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rollback_on_error( $caldav_context, $user_no, $path);
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return false;
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}
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$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 ( $create_resource ) {
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if ( !$this->IsSchedulingCollection() && $do_scheduling ) do_scheduling_requests($vcal,true);
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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'] = $collection_id;
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}
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else {
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if ( !$this->IsSchedulingCollection() && $do_scheduling ) do_scheduling_requests($vcal,false);
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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 = $first->GetPValue('CLASS');
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/* Check and see if we should over ride the class. */
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/** @todo is there some way we can move this out of this function? Or at least get rid of the need for the SQL query here. */
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if ( public_events_only($user_no, $path) ) {
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$class = 'PUBLIC';
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}
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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:
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* Default is PUBLIC
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*/
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if ( !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_tz_locn = 'Turkmenikikamukau'; // I really hope this location doesn't exist!
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$dtstart_prop = $first->GetProperty('DTSTART');
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$tzid = $dtstart_prop->GetParameterValue('TZID');
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if ( empty($tzid) && $first->GetType() == 'VTODO' ) {
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$due_prop = $first->GetProperty('DUE');
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$tzid = $due_prop->GetParameterValue('TZID');
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}
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$timezones = $vcal->GetComponents('VTIMEZONE');
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foreach( $timezones AS $k => $tz ) {
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if ( $tz->GetPValue('TZID') != $tzid ) {
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/**
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* We'll skip any tz definitions that are for a TZID other than the DTSTART/DUE on the first VEVENT/VTODO
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*/
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dbg_error_log( 'ERROR', ' Event uses TZID[%s], skipping included TZID[%s]!', $tz->GetPValue('TZID'), $tzid );
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continue;
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}
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// This is the one
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$tz_locn = $tz->GetPValue('X-LIC-LOCATION');
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if ( ! isset($tz_locn) ) {
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if ( preg_match( '#([^/]+/[^/]+)$#', $tzid, $matches ) )
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$tz_locn = $matches[1];
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else if ( isset($tzid) && $tzid != '' ) {
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dbg_error_log( 'ERROR', ' Couldn\'t guess Olsen TZ from TZID[%s]. This may end in tears...', $tzid );
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}
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}
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else {
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if ( ! preg_match( $tz_regex, $tz_locn ) ) {
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if ( preg_match( '#([^/]+/[^/]+)$#', $tzid, $matches ) ) $tz_locn = $matches[1];
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}
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}
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dbg_error_log( 'PUT', ' Using TZID[%s] and location of [%s]', $tzid, (isset($tz_locn) ? $tz_locn : '') );
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if ( isset($tz_locn) && ($tz_locn != $last_tz_locn) && preg_match( $tz_regex, $tz_locn ) ) {
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dbg_error_log( 'PUT', ' Setting timezone to %s', $tz_locn );
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if ( $tz_locn != '' ) {
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$qry->QDo('SET TIMEZONE TO \''.$tz_locn."'" );
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}
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$last_tz_locn = $tz_locn;
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}
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$params = array( ':tzid' => $tzid);
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$qry = new AwlQuery('SELECT tz_locn FROM time_zone WHERE tz_id = :tzid', $params );
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if ( $qry->Exec('PUT',__LINE__,__FILE__) && $qry->rows() == 0 ) {
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$params[':tzlocn'] = $tz_locn;
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$params[':tzspec'] = (isset($tz) ? $tz->Render() : null );
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$qry->QDo('INSERT INTO time_zone (tz_id, tz_locn, tz_spec) VALUES(:tzid,:tzlocn,:tzspec)', $params );
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}
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if ( !isset($tz_locn) || $tz_locn == '' ) $tz_locn = $tzid;
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}
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$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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write_alarms($dav_id, $first);
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write_attendees($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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