mirror of
https://gitlab.com/davical-project/davical.git
synced 2026-03-02 06:14:17 +00:00
196 lines
8.0 KiB
PHP
196 lines
8.0 KiB
PHP
<?php
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/**
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* Check if the user wants to put just one EVENT/TODO or a whole calendar
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* if the collection = calendar = $request_container doesn't exist then create it
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* return true if it's a whole calendar
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*/
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include_once("iCalendar.php");
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function controlRequestContainer( $username, $user_no, $path, $context ) {
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// Check to see if the path is like /foo /foo/bar or /foo/bar/baz etc. (not ending with a '/', but contains at least one)
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if ( preg_match( '#^(.*/)([^/]+)$#', $path, $matches ) ) {//(
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$request_container = $matches[1]; // get everything up to the last '/'
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$is_collection = false; // get after the last '/'
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}
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else {
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// In this case we must have a URL with a trailing '/', so it must be a collection.
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$request_container = $path;
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$is_collection = true;
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}
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/**
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* Before we write the event, we check the container exists, creating it if it doesn't
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*/
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if ( $request_container == "/$username/" ) {
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/**
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* Well, it exists, and we support it, but it is against the CalDAV spec
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*/
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dbg_error_log( "WARN", " Storing events directly in user's base folders is not recommended!");
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}
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else {
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$sql = "SELECT * FROM collection WHERE user_no = ? AND dav_name = ?;";
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$qry = new PgQuery( $sql, $user_no, $request_container );
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if ( ! $qry->Exec("PUT") ) {
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if($context){
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global $request;
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$request->DoResponse( 500, translate("Error querying database.") );
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}
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else {
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global $c;
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$c->messages[] = sprintf("Status: %d, Message: %s, User: %d, Path: %s", 500, translate("Error querying database."),$user_no,$path);
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}
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}
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if ( $qry->rows == 0 ) {
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if ( preg_match( '#^(.*/)([^/]+/)$#', $request_container, $matches ) ) {//(
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$parent_container = $matches[1];
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$displayname = $matches[2];
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}
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$sql = "INSERT INTO collection ( user_no, parent_container, dav_name, dav_etag, dav_displayname, is_calendar, created, modified ) VALUES( ?, ?, ?, ?, ?, TRUE, current_timestamp, current_timestamp );";
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$qry = new PgQuery( $sql, $user_no, $parent_container, $request_container, md5($user_no. $request_container), $displayname );
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$qry->Exec("PUT");
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}
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}
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//I don't think useful because there is already a $request->IsCollection() that does the job
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//Andrew If you think it's unuseful then remove $is_collection in this function
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return $is_collection;
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}
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/**
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* This function launches an error
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* @param int $user_no the user wich will receive this ics file
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* @param string $path the $path where it will be store such as /user_foo/home/
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* @param boolean $context is true if this function is called from a way where $request is defined
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*/
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function rollback_on_error($context,$user_no,$path) {
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$qry = new PgQuery("ROLLBACK;"); $qry->Exec("PUT-collection");
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if($context){
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global $request;
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$request->DoResponse( 500, translate("Database error") );
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}
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else {
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global $c;
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$c->messages[] = sprintf("Status: %d, Message: %s, User: %d, Path: %s", 500, translate("Database error"),$user_no,$path);
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}
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}
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/**
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* This function will import a whole calendar
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* @param string $ics_content the ics file to import
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* @param int $user_no the user wich will receive this ics file
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* @param string $path the $path where it will be store such as /user_foo/home/
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* @param boolean $context is true if this function is called from a way where $request is defined
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*/
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function import_collection($ics_content, $user_no, $path,$context){
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// According to RFC2445 we should always end with CRLF, but the CalDAV spec says
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// that normalising XML parses often muck with it and may remove the CR.
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$icalendar = preg_replace('/\r?\n /', '', $ics_content );
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$fh = fopen('/tmp/PUT-2.txt','w');
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fwrite($fh,$icalendar);
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fclose($fh);
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$lines = preg_split('/\r?\n/', $icalendar );
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$events = array();
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$timezones = array();
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$current = "";
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$state = "";
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$tzid = 'unknown';
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foreach( $lines AS $lno => $line ) {
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dbg_error_log( "PUT", "CalendarLine[%04d] - %s: %s", $lno, $state, $line );
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if ( $state == "" ) {
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if ( preg_match( '/^BEGIN:(VEVENT|VTIMEZONE|VTODO)$/', $line, $matches ) ) {
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$current .= $line."\n";
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$state = $matches[1];
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}
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}
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else {
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$current .= $line."\n";
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if ( $line == "END:$state" ) {
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switch ( $state ) {
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case 'VEVENT':
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$events[] = array( 'data' => $current, 'tzid' => $tzid );
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break;
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case 'VTODO':
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$events[] = array( 'data' => $current, 'tzid' => $tzid );
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break;
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case 'VTIMEZONE':
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$timezones[$tzid] = $current;
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break;
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}
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$state = "";
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$current = "";
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$tzid = 'unknown';
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}
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else if ( preg_match( '/TZID=([^:]+)(:|$)/', $line, $matches ) ) {
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$tzid = $matches[1];
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}
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}
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}
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$qry = new PgQuery("BEGIN; DELETE FROM calendar_item WHERE user_no=? AND dav_name ~ ?; DELETE FROM caldav_data WHERE user_no=? AND dav_name ~ ?;", $user_no, $path.'[^/]+$', $user_no, $path.'[^/]+$');
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if ( !$qry->Exec("PUT") ) rollback_on_error();
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foreach( $events AS $k => $event ) {
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dbg_error_log( "PUT", "Putting event %d with data: %s", $k, $event['data'] );
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$icalendar = iCalendar::iCalHeader() . $event['data'] . $timezones[$event['tzid']] . iCalendar::iCalFooter();
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$ic = new iCalendar( array( 'icalendar' => $icalendar ) );
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$etag = md5($icalendar);
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$event_path = sprintf( "%s%d.ics", $path, $k);
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$qry = new PgQuery( "INSERT INTO caldav_data ( user_no, dav_name, dav_etag, caldav_data, caldav_type, logged_user, created, modified ) VALUES( ?, ?, ?, ?, ?, ?, current_timestamp, current_timestamp )",
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$user_no, $event_path, $etag, $icalendar, $ic->type, $session->user_no );
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if ( !$qry->Exec("PUT") ) rollback_on_error();
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$sql = "";
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if ( preg_match(':^(Africa|America|Antarctica|Arctic|Asia|Atlantic|Australia|Brazil|Canada|Chile|Etc|Europe|Indian|Mexico|Mideast|Pacific|US)/[a-z]+$:i', $ic->tz_locn ) ) {
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// We only set the timezone if it looks reasonable enough for us
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$sql = ( $ic->tz_locn == '' ? '' : "SET TIMEZONE TO ".qpg($ic->tz_locn).";" );
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}
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$dtstart = $ic->Get('dtstart');
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if ( (!isset($dtstart) || $dtstart == "") && $ic->Get('due') != "" ) {
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$dtstart = $ic->Get('due');
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}
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$dtend = $ic->Get('dtend');
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if ( (!isset($dtend) || "$dtend" == "") && $ic->Get('duration') != "" AND $dtstart != "" ) {
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$duration = preg_replace( '#[PT]#', ' ', $ic->Get('duration') );
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$dtend = '('.qpg($dtstart).'::timestamp with time zone + '.qpg($duration).'::interval)';
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}
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else {
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dbg_error_log( "PUT", " DTEND: '%s', DTSTART: '%s', DURATION: '%s'", $dtend, $dtstart, $ic->Get('duration') );
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$dtend = qpg($dtend);
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}
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$last_modified = $ic->Get("last-modified");
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if ( !isset($last_modified) || $last_modified == '' ) {
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$last_modified = gmdate( 'Ymd\THis\Z' );
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}
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$dtstamp = $ic->Get("dtstamp");
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if ( !isset($dtstamp) || $dtstamp == '' ) {
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$dtstamp = $last_modified;
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}
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$sql .= <<<EOSQL
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INSERT INTO calendar_item (user_no, dav_name, dav_etag, uid, dtstamp, dtstart, dtend, summary, location, class, transp,
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description, rrule, tz_id, last_modified, url, priority, created, due, percent_complete )
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VALUES ( ?, ?, ?, ?, ?, ?, $dtend, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?);
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EOSQL;
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$qry = new PgQuery( $sql, $user_no, $event_path, $etag, $ic->Get('uid'), $dtstamp,
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$ic->Get('dtstart'), $ic->Get('summary'), $ic->Get('location'),
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$ic->Get('class'), $ic->Get('transp'), $ic->Get('description'), $ic->Get('rrule'), $ic->Get('tz_id'),
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$last_modified, $ic->Get('url'), $ic->Get('priority'), $ic->Get('created'),
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$ic->Get('due'), $ic->Get('percent-complete')
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);
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if ( !$qry->Exec("PUT") ) rollback_on_error($context,$user_no,$path);
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}
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$qry = new PgQuery("COMMIT;");
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if ( !$qry->Exec("PUT") ) rollback_on_error($context,$user_no,$path);
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}
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?>
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