mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-10-07 10:42:31 +02:00
586 lines
11 KiB
PHP
Executable File
586 lines
11 KiB
PHP
Executable File
<?php
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/**************************************************************************\
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* phpGroupWare - vCalendar Parser *
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* http://www.phpgroupware.org *
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* Written by Mark Peters <skeeter@phpgroupware.org> *
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* -------------------------------------------- *
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* This program is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU General Public License as published by the *
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* Free Software Foundation; either version 2 of the License, or (at your *
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* option) any later version. *
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\**************************************************************************/
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/* $Id$ */
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define('VEVENT',1);
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define('VTODO',2);
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define('NONE',0);
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define('CHAIR',1);
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define('REQ_PARTICIPANT',2);
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define('OPT_PARTICIPANT',3);
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define('NON_PARTICIPANT',4);
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define('INDIVIDUAL',1);
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define('GROUP',2);
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define('RESOURCE',4);
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define('ROOM',8);
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define('UNKNOWN',16);
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define('NEEDS_ACTION',0);
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define('ACCEPTED',1);
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define('DECLINED',2);
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define('TENTATIVE',3);
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define('DELEGATED',4);
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define('COMPLETED',5);
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define('IN_PROCESS',6);
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define('PRIVATE',0);
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define('PUBLIC',1);
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define('CONFIDENTIAL',3);
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define('TRANSPARENT',0);
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define('OPAQUE',1);
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define('OTHER',99);
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class mailto
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{
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var $user;
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var $host;
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}
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class attendee
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{
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var $cn = 'Unknown';
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var $cutype = INDIVIDUAL;
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var $role = REQ_PARTICIPANT;
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var $rsvp = 0;
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var $mailto;
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var $sent_by;
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var $delegated_from;
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var $delegated_to;
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var $member;
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var $partstat = NEEDS_ACTION;
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}
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class organizer
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{
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var $cn;
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var $cutype = INDIVIDUAL;
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var $delegated_from;
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var $delegated_to;
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var $member;
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var $partstat = NEEDS_ACTION;
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var $mailto;
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var $sent_by;
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}
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class vCalendar_time
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{
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var $year;
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var $month;
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var $mday;
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var $hour;
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var $min;
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var $sec;
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var $date;
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var $allday = False;
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}
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class rrule
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{
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var $freq;
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var $enddate;
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var $interval;
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var $count;
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var $wkst;
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var $byday;
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}
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class vCalendar_event
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{
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var $type;
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var $attendee = Array();
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var $organizer;
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var $dtstart;
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var $dtend;
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var $location;
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var $transp = OPAQUE;
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var $sequence;
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var $uid;
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var $dtstamp;
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var $description;
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var $summary;
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var $priority;
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var $class = PUBLIC;
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var $rrule;
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}
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class vCal
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{
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var $prodid;
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var $version;
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var $method;
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var $event = Array();
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}
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class vCalendar
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{
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var $vcal;
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function splitdate($value)
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{
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$dtime = new vCalendar_time;
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if(strpos($value,':'))
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{
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$pos = explode(':',$value);
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$value = $pos[1];
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}
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$dtime->year = intval(substr($value,0,4));
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$dtime->month = intval(substr($value,4,2));
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$dtime->mday = intval(substr($value,6,2));
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if(substr($value,8,1) == 'T')
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{
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$dtime->hour = intval(substr($value,9,2));
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$dtime->min = intval(substr($value,11,2));
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$dtime->sec = intval(substr($value,13,2));
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}
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else
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{
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$dtime->hour = 0;
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$dtime->min = 0;
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$dtime->sec = 0;
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}
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return $dtime;
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}
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function split_address($address)
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{
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$parts = explode('@',$address);
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if(count($parts) == 2)
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{
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$temp_address = new mailto;
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$temp_address->user = $parts[0];
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$temp_address->host = $parts[1];
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return $temp_address;
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}
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else
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{
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return False;
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}
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}
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function set_var(&$event,$type,$value)
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{
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// if($value != False)
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// {
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$type = strtolower(str_replace('-','_',$type));
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$event->$type = $value;
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// }
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}
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function unfold(&$vcal_text,$current_line)
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{
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$next_line = $current_line;
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while(ereg("^[ \t]",substr($vcal_text[$next_line + 1],0,1)))
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{
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$vcal_text[$current_line] = str_replace("\r\n",'',$vcal_text[$current_line]);
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$vcal_text[$current_line] .= substr($vcal_text[$next_line + 1],1);
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$i = $next_line + 1;
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while($i + 1 <= count($vcal_text))
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{
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$vcal_text[$i] = $vcal_text[$i + 1];
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$i++;
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}
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$next_line++;
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}
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}
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function strip_quotes($str)
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{
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return str_replace('"','',$str);
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}
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function strip_param($str)
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{
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$extra_param = explode(':',$str);
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if(count($extra_param) == 1)
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{
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return $str;
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}
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else
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{
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return $extra_param[1];
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}
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}
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function switch_role($var)
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{
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if(gettype($var) == 'string')
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{
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switch($var)
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{
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case 'NONE':
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return NONE;
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break;
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case 'CHAIR':
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return CHAIR;
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break;
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case 'REQ-PARTICIPANT':
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return REQ_PARTICIPANT;
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break;
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case 'OPT-PARTICIPANT':
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return OPT_PARTICIPANT;
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break;
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case 'NON-PARTICIPANT':
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return NON_PARTICIPANT;
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break;
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}
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}
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elseif(gettype($var) == 'integer')
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{
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switch($var)
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{
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case NONE:
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return 'NONE';
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break;
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case CHAIR:
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return 'CHAIR';
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break;
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case REQ_PARTICIPANT:
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return 'REQ-PARTICIPANT';
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break;
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case OPT_PARTICIPANT:
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return 'OPT-PARTICIPANT';
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break;
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case NON_PARTICIPANT:
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return 'NON-PARTICIPANT';
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break;
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}
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}
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else
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{
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return $var;
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}
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}
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function switch_partstat($var)
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{
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if(gettype($var) == 'string')
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{
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switch($var)
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{
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case 'NEEDS-ACTION':
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return NEEDS_ACTION;
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break;
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case 'ACCEPTED':
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return ACCEPTED;
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break;
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case 'DECLINED':
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return DECLINED;
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break;
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case 'TENTATIVE':
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return TENTATIVE;
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break;
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case 'DELEGATED':
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return DELEGATED;
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break;
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case 'COMPLETED':
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return COMPLETED;
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break;
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case 'IN-PROCESS':
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return IN_PROCESS;
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break;
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default:
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return OTHER;
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break;
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}
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}
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elseif(gettype($var) == 'integer')
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{
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switch($var)
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{
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case NEEDS_ACTION:
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return 'NEEDS-ACTION';
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break;
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case ACCEPTED:
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return 'ACCEPTED';
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break;
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case DECLINED:
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return 'DECLINED';
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break;
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case TENTATIVE:
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return 'TENTATIVE';
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break;
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case DELEGATED:
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return 'DELEGATED';
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break;
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case COMPLETED:
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return 'COMPLETED';
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break;
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case IN_PROCESS:
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return 'IN-PROCESS';
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break;
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default:
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return 'X-OTHER';
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break;
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}
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}
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else
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{
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return $var;
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}
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}
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function switch_rsvp($var)
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{
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if(gettype($var) == 'string')
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{
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if($var == 'TRUE')
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{
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return 1;
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}
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else
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{
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return 0;
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}
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}
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elseif(gettype($var) == 'boolean')
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{
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if($var == 1)
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{
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return 'TRUE';
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}
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else
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{
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return 'FALSE';
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}
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}
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else
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{
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return $var;
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}
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}
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function parse_attendee(&$event,$value)
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{
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$param = explode(':',$value);
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for($j=0;$j<count($param);$j++)
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{
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$param_sub = explode(';',$param[$j]);
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for($k=0;$k<count($param_sub);$k++)
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{
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if(strpos($param_sub[$k],'='))
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{
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$type = explode('=',$param_sub[$k]);
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$type[0] = strtolower($type[0]);
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$type[1] = $this->strip_quotes($type[1]);
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switch($type[0])
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{
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case 'role':
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$val = $this->switch_role($type[1]);
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break;
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case 'partstat':
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$val = $this->switch_partstat($type[1]);
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break;
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case 'rsvp':
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$val = $this->switch_rsvp($type[1]);
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break;
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default:
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$val = $type[1];
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break;
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}
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$this->set_var($event,$type[0],$val);
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}
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else
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{
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if(strpos($param_sub[$k],'@'))
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{
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$this->set_var($event,'mailto',$this->split_address($param_sub[$k]));
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}
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else
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{
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switch(strtolower($param_sub[$k]))
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{
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case 'mailto':
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$email_addy = $param_sub[$k + 1];
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$this->set_var($event,$param_sub[$k++],$this->split_address($email_addy));
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break;
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default:
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$var = $this->strip_param($this->strip_quotes($param_sub[$k + 1]));
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$this->set_var($event,$param_sub[$k++],$var);
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break;
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}
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}
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}
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}
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}
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}
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function parse_recurrence(&$event,$value)
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{
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$param = explode(';',$value);
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for($j=0;$j<count($param);$j++)
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{
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if(strpos($param[$j],'='))
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{
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$type = explode('=',$param[$j]);
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$type[0] = strtolower($type[0]);
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$type[1] = $this->strip_quotes($type[1]);
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$this->set_var($event,$type[0],$type[1]);
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}
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}
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}
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function read($vcal_text)
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{
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$i = 0;
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while(chop($vcal_text[$i]) != '')
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{
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// if(strlen($vcal_text[$i]) > 75)
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// {
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// continue;
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// }
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$this->unfold($vcal_text,$i);
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// Example #1
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//vcal_text[$i] = 'BEGIN:VCALENDAR'
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// Example #2
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//vcal_text[$i] = 'METHOD:REQUEST'
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// Example #3
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//vcal_text[$i] = 'ATTENDEE;CN="John Doe";ROLE=REQ-PARTICIPANT;RSVP=TRUE:MAILTO:john.doe@somewhere.com'
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// Example #4
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//vcal_text[$i] = 'ORGANIZER:MAILTO:jim.smith@elsewhere.com'
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// Example #5
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//vcal_text[$i] = 'DTSTART:20010302T150000Z'
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// Example #6
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//vcal_text[$i] = 'UID:040000008200E00074C5B7101A82E0080000000040A12C0042A2C0010000000000000000100'
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//vcal_text[$i+1] = ' 000009BDFF7C7650ED5118DD700805FA71291'
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// When unfolded becomes,
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//vcal_text[$i] = 'UID:040000008200E00074C5B7101A82E0080000000040A12C0042A2C0010000000000000000100000009BDFF7C7650ED5118DD700805FA71291'
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$colon = strpos($vcal_text[$i],':');
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if($colon == 0)
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{
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$colon = 65535;
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}
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$semi_colon = strpos($vcal_text[$i],';');
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if($semi_colon == 0)
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{
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$semi_colon = 65535;
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}
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if($colon == 65535 && $semi_colon == 65535)
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{
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continue;
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}
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else
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{
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$min_value = min($colon,$semi_colon);
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$majortype = strtolower(substr($vcal_text[$i],0,$min_value));
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$vcal_text[$i] = chop(substr($vcal_text[$i],$min_value + 1));
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$value = $vcal_text[$i];
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}
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switch($majortype)
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{
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case 'begin':
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switch(strtolower($value))
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{
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case 'vcalendar':
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$vcal = new vCal;
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break;
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case 'vevent':
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$event = new vCalendar_event;
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$event->type = strtolower($value);
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break;
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}
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break;
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case 'prodid':
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$this->set_var($vcal,$majortype,$value);
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break;
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case 'version':
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$this->set_var($vcal,$majortype,$value);
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break;
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case 'method':
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$this->set_var($vcal,$majortype,$value);
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break;
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case 'attendee':
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$attendee = new $majortype;
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$this->parse_attendee($attendee,$value);
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$event->attendee[] = $attendee;
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unset($attendee);
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break;
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case 'organizer':
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$event->$majortype = new $majortype;
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$this->parse_attendee($event->$majortype,$value);
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break;
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case 'end':
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switch(strtolower($value))
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{
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case 'vevent':
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$this->event[] = $event;
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break;
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case 'vcalendar':
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$this->vcal = $vcal;
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$this->vcal->event = $this->event;
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break 2;
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}
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break;
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case 'dtstart':
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case 'dtend':
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case 'dtstamp':
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$this->set_var($event,$majortype,$this->splitdate($value));
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break;
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case 'class':
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switch(strtolower($value))
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{
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case 'private':
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$class = PRIVATE;
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break;
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case 'public':
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$class = PUBLIC;
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break;
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case 'confidential':
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$class = CONFIDENTIAL;
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break;
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}
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$this->set_var($event,$majortype,$class);
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break;
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case 'transp':
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switch(strtolower($value))
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{
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case 'transparent':
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$transp = TRANSPARENT;
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break;
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case 'opaque':
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$transp = OPAQUE;
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break;
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}
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$this->set_var($event,$majortype,$transp);
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break;
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case 'rrule':
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$event->$majortype = new $majortype;
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$this->parse_recurrence($event->$majortype,$value);
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break;
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default:
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$this->set_var($event,$majortype,$value);
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break;
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}
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$i++;
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}
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return $this->vcal;
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}
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}
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?>
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