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egroupware_official/calendar/inc/class.boicalendar.inc.php

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<?php
/**************************************************************************\
* phpGroupWare - iCalendar Parser *
* http://www.phpgroupware.org *
* Written by Mark Peters <skeeter@phpgroupware.org> *
* -------------------------------------------- *
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; either version 2 of the License, or (at your *
* option) any later version. *
\**************************************************************************/
/* $Id$ */
define('FOLD_LENGTH',75);
define('VEVENT',1);
define('VTODO',2);
define('NONE',0);
define('CHAIR',1);
define('REQ_PARTICIPANT',2);
define('OPT_PARTICIPANT',3);
define('NON_PARTICIPANT',4);
define('INDIVIDUAL',1);
define('GROUP',2);
define('RESOURCE',4);
define('ROOM',8);
define('UNKNOWN',16);
define('NEEDS_ACTION',0);
define('ACCEPTED',1);
define('DECLINED',2);
define('TENTATIVE',3);
define('DELEGATED',4);
define('COMPLETED',5);
define('IN_PROCESS',6);
/*
* Class
*/
define('PRIVATE',0);
define('PUBLIC',1);
define('CONFIDENTIAL',3);
/*
* Transparency
*/
define('TRANSPARENT',0);
define('OPAQUE',1);
/*
* Frequency
*/
define('SECONDLY',1);
define('MINUTELY',2);
define('HOURLY',3);
define('DAILY',4);
define('WEEKLY',5);
define('MONTHLY',6);
define('YEARLY',7);
define('FREE',0);
define('BUSY',1);
define('BUSY_UNAVAILABLE',2);
define('BUSY_TENTATIVE',3);
define('THISANDPRIOR',0);
define('THISANDFUTURE',1);
define('START',0);
define('END',1);
define('_8BIT',0);
define('_BASE64',1);
define('OTHER',99);
class boicalendar
{
var $ical;
var $line = 0;
var $event = Array();
var $todo = Array();
var $journal = Array();
var $freebusy = Array();
var $timezone = Array();
var $property = Array();
var $parameter = Array();
var $debug_str = False;
var $api = True;
/*
* Base Functions
*/
function boicalendar()
{
$this->property = Array(
'action' => Array(
'type' => 'text',
'to_text' => True,
'valarm' => Array(
'state' => 'required',
'multiples' => False
)
),
'attach' => Array(
'type' => 'uri',
'to_text' => True,
'vevent' => Array(
'state' => 'optional',
'multiples' => True
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => True
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => True
),
'valarm' => Array(
'state' => 'optional',
'multiples' => True
)
),
'attendee' => Array(
'type' => 'cal-address',
'to_text' => False,
'vevent' => Array(
'state' => 'optional',
'multiples' => True
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => True
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => True
),
'valarm' => Array(
'state' => 'optional',
'multiples' => True
),
'vfreebusy' => Array(
'state' => 'optional',
'multiples' => True
)
),
'categories' => Array(
'type' => 'text',
'to_text' => True,
'vevent' => Array(
'state' => 'optional',
'multiples' => True
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => True
)
),
'class' => Array(
'type' => 'text',
'to_text' => True,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => False
)
),
'comment' => Array(
'type' => 'text',
'to_text' => True,
'daylight' => Array(
'state' => 'optional',
'multiples' => True
),
'standard' => Array(
'state' => 'optional',
'multiples' => True
),
'valarm' => Array(
'state' => 'optional',
'multiples' => True
),
'vevent' => Array(
'state' => 'optional',
'multiples' => True
),
'vfreebusy' => Array(
'state' => 'optional',
'multiples' => True
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => True
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => True
)
),
'completed' => Array(
'type' => 'date-time',
'to_text' => False,
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
)
),
'contact' => Array(
'type' => 'text',
'to_text' => True,
'vevent' => Array(
'state' => 'optional',
'multiples' => True
),
'vfreebusy' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => True
)
),
'created' => Array(
'type' => 'date-time',
'to_text' => False,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => False
)
),
'description' => Array(
'type' => 'text',
'to_text' => True,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => True
),
'valarm' => Array(
'state' => 'optional',
'multiples' => False
)
),
'dtend' => Array(
'type' => 'date-time',
'to_text' => False,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vfreebusy' => Array(
'state' => 'optional',
'multiples' => False
)
),
'dtstamp' => Array(
'type' => 'date-time',
'to_text' => False,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => True
),
'vfreebusy' => Array(
'state' => 'optional',
'multiples' => False
)
),
'dtstart' => Array(
'type' => 'date-time',
'to_text' => False,
'daylight' => Array(
'state' => 'required',
'multiples' => False
),
'standard' => Array(
'state' => 'required',
'multiples' => False
),
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vfreebusy' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
)
),
'due' => Array(
'type' => 'date-time',
'to_text' => False,
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
)
),
'duration' => Array(
'type' => 'duration',
'to_text' => False,
'valarm' => Array(
'state' => 'optional',
'multiples' => False
),
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vfreebusy' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
)
),
'exdate' => Array(
'type' => 'date-time',
'to_text' => False,
'vevent' => Array(
'state' => 'optional',
'multiples' => True
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => True
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => True
)
),
'exrule' => Array(
'type' => 'recur',
'to_text' => False,
'vevent' => Array(
'state' => 'optional',
'multiples' => True
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => True
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => True
)
),
'freebusy' => Array(
'type' => 'freebusy',
'to_text' => False,
'vfreebusy' => Array(
'state' => 'optional',
'multiples' => True
)
),
'geo' => Array(
'type' => 'float',
'to_text' => True,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
)
),
'last_modified' => Array(
'type' => 'date-time',
'to_text' => False,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => False
),
'vtimezone' => Array(
'state' => 'optional',
'multiples' => False
)
),
'location' => Array(
'type' => 'text',
'to_text' => True,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
)
),
'method' => Array(
'type' => 'text',
'to_text' => True,
'ical' => Array(
'state' => 'required',
'multiples' => False
)
),
'organizer' => Array(
'type' => 'cal-address',
'to_text' => False,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => False
),
'vfreebusy' => Array(
'state' => 'optional',
'multiples' => False
)
),
'percent_complete' => Array(
'type' => 'integer',
'to_text' => False,
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
)
),
'priority' => Array(
'type' => 'integer',
'to_text' => True,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
)
),
'prodid' => Array(
'type' => 'text',
'to_text' => True,
'ical' => Array(
'state' => 'required',
'multiples' => False
)
),
'rdate' => Array(
'type' => 'date-time',
'to_text' => False,
'daylight' => Array(
'state' => 'optional',
'multiples' => True
),
'standard' => Array(
'state' => 'optional',
'multiples' => True
),
'vevent' => Array(
'state' => 'optional',
'multiples' => True
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => True
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => True
)
),
'recurrence_id' => Array(
'type' => 'date-time',
'to_text' => False,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
)
),
'related_to' => Array(
'type' => 'text',
'to_text' => False,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => True
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => True
)
),
'request_status' => Array(
'type' => 'text',
'to_text' => True,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => True
),
'vfreebusy' => Array(
'state' => 'optional',
'multiples' => True
)
),
'resources' => Array(
'type' => 'text',
'to_text' => False,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
)
),
'rrule' => Array(
'type' => 'recur',
'to_text' => False,
'daylight' => Array(
'state' => 'optional',
'multiples' => True
),
'standard' => Array(
'state' => 'optional',
'multiples' => True
),
'vevent' => Array(
'state' => 'optional',
'multiples' => True
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => True
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => True
)
),
'sequence' => Array(
'type' => 'integer',
'to_text' => True,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
)
),
'status' => Array(
'type' => 'text',
'to_text' => True,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
)
),
'summary' => Array(
'type' => 'text',
'to_text' => True,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'optional',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => False
),
'valarm' => Array(
'state' => 'optional',
'multiples' => False
)
),
'transp' => Array(
'type' => 'text',
'to_text' => True,
'vevent' => Array(
'state' => 'optional',
'multiples' => False
)
),
'trigger' => Array(
'type' => 'text',
'to_text' => True,
'valarm' => Array(
'state' => 'optional',
'multiples' => False
)
),
'tzid' => Array(
'type' => 'text',
'to_text' => True,
'vtimezone' => Array(
'state' => 'required',
'multiples' => False
)
),
'tzname' => Array(
'type' => 'text',
'to_text' => True,
'daylight' => Array(
'state' => 'optional',
'multiples' => True
),
'standard' => Array(
'state' => 'optional',
'multiples' => True
)
),
'tzoffsetfrom' => Array(
'type' => 'utc-offset',
'to_text' => True,
'daylight' => Array(
'state' => 'required',
'multiples' => False
),
'standard' => Array(
'state' => 'required',
'multiples' => False
)
),
'tzoffsetto' => Array(
'type' => 'utc-offset',
'to_text' => True,
'daylight' => Array(
'state' => 'required',
'multiples' => False
),
'standard' => Array(
'state' => 'required',
'multiples' => False
)
),
'tzurl' => Array(
'type' => 'uri',
'to_text' => True,
'vtimezone' => Array(
'state' => 'optional',
'multiples' => False
)
),
'uid' => Array(
'type' => 'text',
'to_text' => True,
'vevent' => Array(
'state' => 'required',
'multiples' => False
),
'vfreebusy' => Array(
'state' => 'required',
'multiples' => False
),
'vjournal' => Array(
'state' => 'required',
'multiples' => False
),
'vtodo' => Array(
'state' => 'required',
'multiples' => False
)
),
'url' => Array(
'type' => 'text',
'to_text' => True,
'vevent' => Array(
'state' => 'required',
'multiples' => False
),
'vfreebusy' => Array(
'state' => 'required',
'multiples' => False
),
'vjournal' => Array(
'state' => 'optional',
'multiples' => False
),
'vtodo' => Array(
'state' => 'required',
'multiples' => False
)
),
'version' => Array(
'type' => 'text',
'to_text' => True,
'ical' => Array(
'state' => 'required',
'multiples' => False
)
)
);
$this->parameter = Array(
'altrep' => Array(
'type' => 'uri',
'quoted' => True,
'to_text' => True,
'properties' => Array(
'comment' => True,
'description' => True,
'location' => True,
'prodid' => True,
'resources' => True,
'summary' => True,
'contact' => True
)
),
'byday' => Array(
'type' => 'text',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'byhour' => Array(
'type' => 'text',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'byminute' => Array(
'type' => 'text',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'bymonth' => Array(
'type' => 'text',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'bymonthday' => Array(
'type' => 'text',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'bysecond' => Array(
'type' => 'text',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'bysetpos' => Array(
'type' => 'text',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'byweekno' => Array(
'type' => 'text',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'byyearday' => Array(
'type' => 'text',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'class' => Array(
'type' => 'function',
'function' => 'switch_class',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'class' => True
)
),
'cn' => Array(
'type' => 'text',
'quoted' => True,
'to_text' => False,
'properties' => Array(
'attendee' => True,
'organizer' => True
)
),
'count' => Array(
'type' => 'integer',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'cu' => Array(
'type' => 'function',
'function' => 'switch_cu',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'attendee' => True
)
),
'delegated_from' => Array(
'type' => 'function',
'function' => 'switch_mailto',
'quoted' => True,
'to_text' => False,
'properties' => Array(
'attendee' => True
)
),
'delegated_to' => Array(
'type' => 'function',
'function' => 'switch_mailto',
'quoted' => True,
'to_text' => False,
'properties' => Array(
'attendee' => True
)
),
'dir' => Array(
'type' => 'dir',
'quoted' => True,
'to_text' => True,
'properties' => Array(
'attendee' => True,
'organizer' => True
)
),
'dtend' => Array(
'type' => 'function',
'function' => 'switch_date',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'dtend' => True
)
),
'dtstamp' => Array(
'type' => 'function',
'function' => 'switch_date',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'dtstamp' => True
)
),
'dtstart' => Array(
'type' => 'function',
'function' => 'switch_date',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'dtstart' => True
)
),
'enocding' => Array(
'type' => 'function',
'function' => 'switch_encoding',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'attach' => True
)
),
'fmttype' => Array(
'type' => 'text',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'attach' => True
)
),
'fbtype' => Array(
'type' => 'function',
'function' => 'switch_fbtype',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'attach' => True
)
),
'freq' => Array(
'type' => 'function',
'function' => 'switch_freq',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'interval' => Array(
'type' => 'integer',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'language' => Array(
'type' => 'text',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'categories' => True,
'comment' => True,
'description' => True,
'location' => True,
'resources' => True,
'summary' => True,
'tzname' => True,
'attendee' => True,
'contact' => True,
'organizer' => True,
'x-type' => True
)
),
'last_modified' => Array(
'type' => 'function',
'function' => 'switch_date',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'last_modified' => True
)
),
'mailto' => Array(
'type' => 'function',
'function' => 'switch_mailto',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'attendee' => True,
'organizer' => True
)
),
'member' => Array(
'type' => 'function',
'function' => 'switch_mailto',
'quoted' => True,
'to_text' => False,
'properties' => Array(
'attendee' => True
)
),
'partstat' => Array(
'type' => 'function',
'function' => 'switch_partstat',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'attendee' => True,
'organizer' => True
)
),
'range' => Array(
'type' => 'function',
'function' => 'switch_range',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'recurrence_id' => True
)
),
'related' => Array(
'type' => 'function',
'function' => 'switch_related',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'related_to' => True
)
),
'role' => Array(
'type' => 'function',
'function' => 'switch_role',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'attendee' => True,
'organizer' => True
)
),
'rsvp' => Array(
'type' => 'function',
'function' => 'switch_rsvp',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'attendee' => True
)
),
'sent_by' => Array(
'type' => 'function',
'function' => 'parse_user_host',
'quoted' => True,
'to_text' => False,
'properties' => Array(
'attendee' => True,
'organizer' => True
)
),
'tzid' => Array(
'type' => 'text',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'dtend' => True,
'due' => True,
'dtstart' => True,
'exdate' => True,
'rdate' => True,
'recurrence_id' => True
)
),
'until' => Array(
'type' => 'function',
'function' => 'switch_date',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'value' => Array(
'type' => 'value',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'calscale' => True,
'prodid' => True,
'method' => True,
'version' => True,
'attach' => True,
'categories' => True,
'class' => True,
'comment' => True,
'description' => True,
'geo' => True,
'location' => True,
'percent' => True,
'priority' => True,
'resources' => True,
'status' => True,
'summary' => True,
'completed' => True,
'dtend' => True,
'due' => True,
'dtstart' => True,
'duration' => True,
'freebusy' => True,
'transp' => True,
'tzid' => True,
'tzname' => True,
'tzoffsetfrom' => True,
'tzoffsetto' => True,
'tzurl' => True,
'attendee' => True,
'contact' => True,
'organizer' => True,
'recurrence_id' => True,
'url' => True,
'uid' => True,
'exdate' => True,
'exrule' => True,
'rdate' => True,
'rrule' => True,
'action' => True,
'repeat' => True,
'trigger' => True,
'created' => True,
'dtstamp' => True,
'last_modified' => True,
'sequence' => True,
'x_type' => True,
'request_status' => True
)
),
'wkst' => Array(
'type' => 'string',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'rrule' => True
)
),
'x_type' => Array(
'type' => 'x_type',
'quoted' => False,
'to_text' => False,
'properties' => Array(
'calscale' => True,
'method' => True,
'prodid' => True,
'version' => True,
'attach' => True,
'categories' => True,
'class' => True,
'comment' => True,
'description' => True,
'geo' => True,
'location' => True,
'percent' => True,
'priority' => True,
'resources' => True,
'status' => True,
'summary' => True,
'completed' => True,
'dtend' => True,
'due' => True,
'dtstart' => True,
'duration' => True,
'freebusy' => True,
'transp' => True,
'tzid' => True,
'tzname' => True,
'tzoffsetfrom' => True,
'tzoffsetto' => True,
'tzurl' => True,
'attendee' => True,
'contact' => True,
'organizer' => True,
'recurrence_id' => True,
'url' => True,
'uid' => True,
'exdate' => True,
'exrule' => True,
'rdate' => True,
'rrule' => True,
'action' => True,
'repeat' => True,
'trigger' => True,
'created' => True,
'dtstamp' => True,
'last_modified' => True,
'sequence' => True,
'x_type' => True,
'request_status' => True
)
)
);
}
function set_var(&$event,$type,$value)
{
$type = strtolower(str_replace('-','_',$type));
$event[$type] = $value;
if(is_string($value))
{
$this->debug("Setting ".$type." = ".$value);
}
else
{
$this->debug("Setting ".$type." = "._debug_array($value));
}
}
function read_line_unfold($ical_text)
{
if($this->line < count($ical_text))
{
$str = str_replace("\r\n",'',$ical_text[$this->line]);
$this->line = $this->line + 1;
while(ereg("^[[:space:]]",$ical_text[$this->line]))
{
$str .= substr(str_replace("\r\n",'',$ical_text[$this->line]),1);
$this->line = $this->line + 1;
}
$this->debug("LINE : ".$str);
return $str;
}
else
{
return False;
}
}
function fold($str)
{
return chunk_split($str,FOLD_LENGTH,"\r\n");
}
function strip_quotes($str)
{
return str_replace('"','',$str);
}
function from_text($str)
{
$str = str_replace("\\,",",",$str);
$str = str_replace("\\;",";",$str);
$str = str_replace("\\N","\n",$str);
$str = str_replace("\\n","\n",$str);
$str = str_replace("\\\\","\\",$str);
return "$str";
}
function to_text($str)
{
$str = str_replace("\\","\\\\",$str);
$str = str_replace(",","\\,",$str);
$str = str_replace(";","\\;",$str);
$str = str_replace("\n","\\n",$str);
return "$str";
}
function from_dir($str)
{
return str_replace('=3D','=',str_replace('%20',' ',$str));
}
function to_dir($str)
{
return str_replace('=','=3D',str_replace(' ','%20',$str));
}
function find_parameters($property)
{
static $cached_returns;
if(isset($cached_returns[$property]))
{
reset($cached_returns[$property]);
return $cached_returns[$property];
}
reset($this->parameter);
while(list($key,$param_array) = each($this->parameter))
{
if($param_array['properties'][$property])
{
$param[] = $key;
$this->debug('Property : '.$property.' = Parameter : '.$key);
}
}
reset($param);
$cached_returns[$property] = $param;
return $param;
}
function find_properties($ical_type)
{
static $cached_returns;
if(isset($cached_returns[$ical_type]))
{
reset($cached_returns[$ical_type]);
return $cached_returns[$ical_type];
}
reset($this->property);
while(list($key,$param_array) = each($this->property))
{
if($param_array[$ical_type])
{
$prop[] = $key;
}
}
reset($prop);
$cached_returns[$ical_type] = $prop;
return $prop;
}
function new_ical()
{
return Array();
}
/*
* Parse Functions
*/
function parse_geo(&$event,$value)
{
// $return_value = $this->explode_param($value,True);
if(count($return_value) == 2)
{
$event['lat'] = $return_value[0];
$event['lon'] = $return_value[1];
}
}
function parse_xtype(&$event,$majortype,$value)
{
$temp_x_type['name'] = strtoupper(substr($majortype,2));
$temp_x_type['value'] = $value;
$event['x_type'][] = $temp_x_type;
}
function parse_parameters(&$event,$majortype,$value)
{
if(!ereg('[\=\;]',$value))
{
$return_value[] = Array(
'param' => $majortype,
'value' => $value
);
$value = '';
}
elseif(ereg('(.*(\:\\\\)?.*):(.*)',$value,$temp))
{
$this->debug('Value : '._debug_array($temp));
$this->debug('Param '.$majortype.' Value : '.$temp[3]);
if($temp[3])
{
$return_value[] = Array(
'param' => $majortype,
'value' => $temp[3]
);
$value = str_replace(':MAILTO','',$temp[1]);
}
while(ereg('(([A-Z\-]*)[=]([[:alnum:] \_\)\(\/\$\.\,\:\\\|\*\&\^\%\#\!\~\"\?\&\@\<\>\-]*))([\;]?)(.*)',$value,$temp))
{
$this->debug('Value : '._debug_array($temp));
$this->debug('Param '.$temp[2].' Value : '.$temp[3]);
$return_value[] = Array(
'param' => $temp[2],
'value' => $temp[3]
);
$value = chop($temp[5]);
$this->debug('Value would be = '.$value);
flush();
}
}
else
{
while(ereg('(([A-Z\-]*)[=]([[:alnum:] \_\)\(\/\$\.\,\:\\\|\*\&\^\%\#\!\~\"\?\&\@\<\>\-]*))([\;]?)(.*)',$value,$temp))
{
$this->debug('Value : '._debug_array($temp));
$this->debug('Param '.$temp[2].' Value : '.$temp[3]);
$return_value[] = Array(
'param' => $temp[2],
'value' => $temp[3]
);
$value = chop($temp[5]);
$this->debug('Value would be = '.$value);
flush();
}
}
for($i=0;$i<count($return_value);$i++)
{
$name = strtolower($return_value[$i]['param']);
$value = $this->strip_quotes($return_value[$i]['value']);
if(substr($name,0,2) == 'x-')
{
$param = 'x_type';
$name = str_replace('-','_',$return_value[$i]['param']);
}
else
{
$param = str_replace('-','_',strtolower($name));
if(!isset($this->parameter[$param]) || $majortype == 'tzid')
{
if($majortype == 'attendee' || $majortype == 'organizer')
{
$param = 'mailto';
$name = $param;
}
else
{
$param = 'value';
}
}
}
$this->debug('name : '.$name.' : Param = '.$param);
if(@$this->parameter[$param]['properties'][$majortype])
{
switch(@$this->parameter[$param]['type'])
{
case 'dir':
$this->set_var($event,$name,$this->from_dir($value));
break;
case 'text':
$this->set_var($event,$name,$value);
break;
case 'x_type':
$this->parse_xtype($event,$name,$value);
break;
case 'function':
$function = $this->parameter[$param]['function'];
$this->set_var($event,$name,$this->$function($value));
break;
case 'uri':
if(@$this->parameter[$param]['to_text'])
{
$value = $this->to_text($value);
}
$this->set_var($event,$name,$value);
break;
case 'integer':
$this->set_var($event,$name,intval($value));
break;
case 'value':
if(@$this->property[$majortype]['type'] == 'date-time')
{
$this->set_var($event,$param,$this->switch_date($name));
}
elseif($value <> "\\n" && $value)
{
$this->set_var($event[$majortype],$param,$value);
}
$this->debug('Event : '._debug_array($event));
break;
}
}
}
}
function parse_value(&$event,$majortype,$value,$mode)
{
$var = Array();
$this->debug('Mode : '.$mode.' Majortype : '.$majortype);
$this->parse_parameters($var,$majortype,$value);
if($this->property[$majortype][$mode]['multiples'])
{
$this->debug(_debug_array($var));
$event[$majortype][] = $var;
}
else
{
$this->debug('Majortype : '.$majortype);
$this->debug('Property : '.$this->property[$majortype]['type']);
if($this->property[$majortype]['type'] == 'date-time')
{
$this->debug('Got a DATE-TIME type!');
$t_var = $var[$majortype];
unset($var[$majortype]);
reset($t_var);
while(list($key,$val) = each($t_var))
{
$var[$key] = $val;
}
$this->debug($majortype.' : '._debug_array($var));
}
$this->set_var($event,$majortype,$var);
}
}
/*
* Build-Card Functions
*/
function build_xtype($x_type,$seperator='=')
{
$quote = '';
if($seperator == '=')
{
$quote = '"';
}
$return_value = $this->fold('X-'.$x_type['name'].$seperator.$quote.$x_type['value'].$quote);
if($seperator == '=')
{
return str_replace("\r\n","",$return_value);
}
else
{
return $return_value;
}
}
function build_parameters($event,$property)
{
$str = '';
$include_mailto = False;
$include_datetime = False;
$param = $this->find_parameters($property);
while(list($dumb_key,$key) = each($param))
{
if($key == 'value')
{
continue;
}
if($key == 'mailto')
{
$include_mailto = True;
continue;
}
$param_array = @$this->parameter[$key];
$type = @$this->parameter[$key]['type'];
if($type == 'date-time')
{
$include_datetime = True;
continue;
}
$quote = (@$this->parameter[$key]['quoted']?'"':'');
if(isset($event[$key]) && @$this->parameter[$key]['properties'][$property])
{
$change_text = @$this->parameter[$key]['to_text'];
$value = $event[$key];
if($change_text && $type == 'text')
{
$value = $this->to_text($value);
}
switch($type)
{
case 'dir':
$str .= ';'.str_replace('_','-',strtoupper($key)).'='.$quote.$this->to_dir($value).$quote;
break;
case 'function':
// $this->debug_str = True;
$str .= ';'.str_replace('_','-',strtoupper($key)).'=';
$function = $this->parameter[$key]['function'];
$this->debug($key.' Function Param : '.$value);
$str .= $quote.$this->$function($value).$quote;
// $this->debug_str = False;
break;
case 'text':
case 'string':
$str .= ';'.strtoupper($key).'='.$quote.$value.$quote;
break;
case 'date-time':
$str .= ($key=='until'?':':';UNTIL=').date('Ymd\THis',mktime($event['hour'],$event['min'],$event['sec'],$event['month'],$event['mday'],$event['year'])).(!@isset($event['tzid'])?'Z':'');
}
unset($value);
}
}
if(!empty($event['x_type']))
{
$c_x_type = count($event['x_type']);
for($j=0;$j<$c_x_type;$j++)
{
$str .= ';'.$this->build_xtype($event['x_type'][$j],'=');
}
}
if(!empty($event['value']))
{
$str .= ':'.($this->parameter['value']['to_text']?$this->to_text($event['value']):$event['value']);
}
if($include_mailto == True)
{
$key = 'mailto';
$function = $this->parameter[$key]['function'];
$ret_value = $this->$function($event[$key]);
$str .= ($ret_value?':'.$ret_value:'');
}
if($include_datetime == True || @$this->property[$property]['type'] == 'date-time')
{
$str .= ':'.date('Ymd\THis',mktime($event['hour'],$event['min'],$event['sec'],$event['month'],$event['mday'],$event['year'])).(!@isset($event['tzid'])?'Z':'');
}
return ($property=='rrule'?':'.substr($str,1):$str);
}
function build_text($event,$property)
{
$str = '';
$param = $this->find_parameters($property);
while(list($dumb_key,$key) = each($param))
{
if(!empty($event[$key]) && $key != 'value')
{
$type = @$this->parameter[$key]['type'];
$quote = @$this->parameter[$key]['quote'];
if(@$this->parameter[$key]['to_text'] == True)
{
$value = $this->to_text($event[$key]);
}
else
{
$value = $event[$key];
}
switch($type)
{
case 'text':
$str .= ';'.strtoupper($key).'='.$quote.$value.$quote;
break;
}
}
}
if(!empty($event['x_type']))
{
$c_x_type = count($event['x_type']);
for($j=0;$j<$c_x_type;$j++)
{
$str .= ';'.$this->build_xtype($event['x_type'][$j],'=');
}
}
if(!empty($event['value']))
{
$str .= ':'.($this->parameter['value']['to_text']?$this->to_text($event['value']):$event['value']);
}
return $str;
}
function build_card_internals($ical_item,$event)
{
$prop = $this->find_properties($ical_item);
reset($prop);
while(list($dumb_key,$key) = each($prop))
{
$value = $key;
$varray = $this->property[$key];
$type = $varray['type'];
$to_text = $varray['to_text'];
$state = @$varray[$ical_item]['state'];
$multiples = @$varray[$ical_item]['multiples'];
switch($type)
{
case 'date-time':
if(!empty($event[$value]))
{
if($multiples)
{
for($i=0;$i<count($event[$value]);$i++)
{
$str .= $this->fold(strtoupper($value).$this->build_parameters($event[$value][$i],$value));
}
}
else
{
$str .= $this->fold(strtoupper($value).$this->build_parameters($event[$value],$value));
}
}
elseif($value == 'dtstamp' || $value == 'created')
{
$str .= $this->fold(strtoupper($value).':'.gmdate('Ymd\THis\Z'));
}
break;
case 'uri':
if(!empty($event[$value]))
{
for($i=0;$i<count($event[$value]);$i++)
{
$str .= $this->fold(strtoupper($value).$this->build_parameters($event[$value][$i],$to_text));
}
}
break;
case 'recur':
if(!empty($event[$value]))
{
if($multiples)
{
for($i=0;$i<count($event[$value]);$i++)
{
$str .= $this->fold(strtoupper(str_replace('_','-',$value)).$this->build_parameters($event[$value][$i],$value));
}
}
else
{
$str .= $this->fold(strtoupper(str_replace('_','-',$value)).$this->build_parameters($event[$value],$value));
}
}
break;
case 'integer':
if(!empty($event[$value]))
{
$str .= $this->fold(strtoupper(str_replace('_','-',$value)).':'.$event[$value]);
}
elseif($value == 'sequence' || $value == 'percent_complete')
{
$str .= $this->fold(strtoupper(str_replace('_','-',$value)).':0');
}
break;
case 'function':
$str .= ';'.str_replace('_','-',strtoupper($value)).'=';
$function = @$this->parameter[$key]['function'];
$str .= (@$this->parameter[$key]['quoted']?'"':'').$this->$function($event[$key]).(@$this->parameter[$key]['quoted']?'"':'');
break;
case 'float':
if(!empty($event[$value]))
{
$str .= $this->fold(strtoupper(str_replace('_','-',$value)).':'.$event[$value]['lat'].';'.$event[$value]['lon']);
}
break;
case 'text':
if(isset($event[$value]))
{
if(@$this->parameter[$key]['type'] != 'function')
{
if($multiples && count($event[$value]) > 1)
{
for($i=0;$i<count($event[$value]);$i++)
{
$str .= $this->fold(strtoupper(str_replace('_','-',$value)).$this->build_parameters($event[$value][$i],$value));
}
}
else
{
$str .= $this->fold(strtoupper(str_replace('_','-',$value)).$this->build_parameters($event[$value],$value));
}
}
else
{
$function = $this->parameter[$value]['function'];
if($multiples)
{
for($i=0;$i<count($event[$value]);$i++)
{
$str .= $this->fold(strtoupper(str_replace('_','-',$value)).':'.$this->$function($event[$value][$i]));
}
}
else
{
$str .= $this->fold(strtoupper(str_replace('_','-',$value)).':'.$this->$function($event[$value]));
}
}
}
break;
case 'cal-address':
if(is_array($event[$value][0]))
{
for($j=0;$j<count($event[$value]);$j++)
{
$temp_output = $this->build_parameters($event[$value][$j],$value);
if($temp_output)
{
$str .= $this->fold(strtoupper($value).$temp_output);
}
}
}
else
{
$temp_output = $this->build_parameters($event[$value],$value);
if($temp_output)
{
$str .= $this->fold(strtoupper($value).$temp_output);
}
}
break;
}
}
if(!empty($event['x_type']))
{
for($i=0;$i<count($event['x_type']);$i++)
{
$str .= $this->build_xtype($event['x_type'][$i],':');
}
}
if($ical_item == 'vtimezone')
{
if($event['tzdata'])
{
for($k=0;$k<count($event['tzdata']);$k++)
{
$str .= 'BEGIN:'.strtoupper($event['tzdata'][$k]['type'])."\r\n";
$str .= $this->build_card_internals(strtolower($event['tzdata'][$k]['type']),$event['tzdata'][$k]);
$str .= 'END:'.strtoupper($event['tzdata'][$k]['type'])."\r\n";
}
}
}
elseif($event['alarm'])
{
for($k=0;$k<count($event['alarm']);$k++)
{
$str .= 'BEGIN:VALARM'."\r\n";
$str .= $this->build_card_internals('valarm',$event['alarm'][$k]);
$str .= 'END:VALARM'."\r\n";
}
}
return $str;
}
/*
* Switching Functions
*/
function switch_class($var)
{
if(is_string($var))
{
switch($var)
{
case 'PRIVATE':
return PRIVATE;
break;
case 'PUBLIC':
return PUBLIC;
break;
case 'CONFIDENTIAL':
return CONFIDENTIAL;
break;
}
}
elseif(is_int($var))
{
switch(intval($var))
{
case PRIVATE:
return 'PRIVATE';
break;
case PUBLIC:
return 'PUBLIC';
break;
case CONFIDENTIAL:
return 'CONFIDENTIAL';
break;
}
}
else
{
return $var;
}
}
function switch_cu($var)
{
if(gettype($var) == 'string')
{
switch($var)
{
case 'INDIVIDUAL':
return INDIVIDUAL;
break;
case 'GROUP':
return GROUP;
break;
case 'RESOURCE':
return RESOURCE;
break;
case 'ROOM':
return ROOM;
break;
case 'UNKNOWN':
return UNKNOWN;
break;
default:
return OTHER;
break;
}
}
elseif(gettype($var) == 'integer')
{
switch($var)
{
case INDIVIDUAL:
return 'INDIVIDUAL';
break;
case GROUP:
return 'GROUP';
break;
case RESOURCE:
return 'RESOURCE';
break;
case ROOM:
return 'ROOM';
break;
case UNKNOWN:
return 'UNKNOWN';
break;
default:
return 'X-OTHER';
break;
}
}
else
{
return $var;
}
}
function switch_date($var)
{
$this->debug('SWITCH_DATE: gettype = '.gettype($var));
if(is_string($var))
{
$dtime = Array();
if(strpos($var,':'))
{
$pos = explode(':',$var);
$var = $pos[1];
}
$this->set_var($dtime,'year',intval(substr($var,0,4)));
$this->set_var($dtime,'month',intval(substr($var,4,2)));
$this->set_var($dtime,'mday',intval(substr($var,6,2)));
if(substr($var,8,1) == 'T')
{
$this->set_var($dtime,'hour',intval(substr($var,9,2)));
$this->set_var($dtime,'min',intval(substr($var,11,2)));
$this->set_var($dtime,'sec',intval(substr($var,13,2)));
if(strlen($var) > 14)
{
if(substr($var,14,1) != 'Z')
{
if($this->api)
{
$dtime['hour'] -= $GLOBALS['phpgw_info']['users']['common']['tz_offset'];
if($dtime['hour'] < 0)
{
$dtime['mday'] -= 1;
$dtime['hour'] = 24 - $dtime['hour'];
}
elseif($dtime['hour'] >= 24)
{
$dtime['mday'] += 1;
$dtime['hour'] = $dtime['hour'] - 24;
}
}
}
}
else
{
/*
* The time provided by the iCal is considered local time.
*
* The implementor will need to consider how to convert that time to UTC.
*/
// if($this->api)
// {
// $dtime['hour'] -= $GLOBALS['phpgw_info']['users']['common']['tz_offset'];
// if($dtime['hour'] < 0)
// {
// $dtime['mday'] -= 1;
// $dtime['hour'] = 24 - $dtime['hour'];
// }
// elseif($dtime['hour'] >= 24)
// {
// $dtime['mday'] += 1;
// $dtime['hour'] = $dtime['hour'] - 24;
// }
// }
}
}
else
{
$this->set_var($dtime,'hour',0);
$this->set_var($dtime,'min',0);
$this->set_var($dtime,'sec',0);
if($this->api)
{
$dtime['hour'] -= $GLOBALS['phpgw_info']['users']['common']['tz_offset'];
}
}
$this->debug('DATETIME : '._debug_array($dtime));
return $dtime;
}
elseif(is_array($var))
{
return date('Ymd\THis\Z',mktime($var['hour'],$var['min'],$var['sec'],$var['month'],$var['mday'],$var['year']));
}
else
{
return $var;
}
}
function switch_encoding($var)
{
if(is_string($var))
{
switch($var)
{
case '8BIT':
return _8BIT;
break;
case 'BASE64':
return _BASE64;
break;
default:
return OTHER;
break;
}
}
elseif(is_int($var))
{
switch($var)
{
case _8BIT:
return '8BIT';
break;
case _BASE64:
return 'BASE64';
break;
case OTHER:
return 'OTHER';
break;
}
}
else
{
return $var;
}
}
function switch_fbtype($var)
{
if(is_string($var))
{
switch($var)
{
case 'FREE':
return FREE;
break;
case 'BUSY':
return BUSY;
break;
case 'BUSY-UNAVAILABLE':
return BUSY_UNAVAILABLE;
break;
case 'BUSY-TENTATIVE':
return BUSY_TENTATIVE;
break;
default:
return OTHER;
break;
}
}
elseif(is_int($var))
{
switch($var)
{
case FREE:
return 'FREE';
break;
case BUSY:
return 'BUSY';
break;
case BUSY_UNAVAILABLE:
return 'BUSY-UNAVAILABLE';
break;
case BUSY_TENTATIVE:
return 'BUSY-TENTATIVE';
break;
default:
return 'OTHER';
break;
}
}
else
{
return $var;
}
}
function switch_freq($var)
{
if(is_string($var))
{
switch($var)
{
case 'SECONDLY':
return SECONDLY;
break;
case 'MINUTELY':
return MINUTELY;
break;
case 'HOURLY':
return HOURLY;
break;
case 'DAILY':
return DAILY;
break;
case 'WEEKLY':
return WEEKLY;
break;
case 'MONTHLY':
return MONTHLY;
break;
case 'YEARLY':
return YEARLY;
break;
}
}
elseif(is_int($var))
{
switch($var)
{
case SECONDLY:
return 'SECONDLY';
break;
case MINUTELY:
return 'MINUTELY';
break;
case HOURLY:
return 'HOURLY';
break;
case DAILY:
return 'DAILY';
break;
case WEEKLY:
return 'WEEKLY';
break;
case MONTHLY:
return 'MONTHLY';
break;
case YEARLY:
return 'YEARLY';
break;
}
}
else
{
return $var;
}
}
function switch_mailto($var)
{
if(is_string($var))
{
if(strpos(' '.$var,':'))
{
$parts = explode(':',$var);
$var = $parts[1];
}
$parts = explode('@',$var);
$this->debug("Count of mailto parts : ".count($parts));
if(count($parts) == 2)
{
$this->debug("Splitting ".$parts[0]." @ ".$parts[1]);
$temp_address = Array();
$temp_address['user'] = $parts[0];
$temp_address['host'] = $parts[1];
return $temp_address;
}
else
{
return False;
}
}
elseif(is_array($var))
{
// return 'MAILTO:'.$var['user'].'@'.$var['host'];
return $var['user'].'@'.$var['host'];
}
}
function switch_partstat($var)
{
// $this->debug_str = True;
$this->debug('PARTSTAT = '.$var);
// $this->debug_str = False;
if(is_string($var))
{
switch($var)
{
case 'NEEDS-ACTION':
return NEEDS_ACTION;
break;
case 'ACCEPTED':
return ACCEPTED;
break;
case 'DECLINED':
return DECLINED;
break;
case 'TENTATIVE':
return TENTATIVE;
break;
case 'DELEGATED':
return DELEGATED;
break;
case 'COMPLETED':
return COMPLETED;
break;
case 'IN-PROCESS':
return IN_PROCESS;
break;
default:
return OTHER;
break;
}
}
elseif(is_int($var))
{
switch(intval($var))
{
case NEEDS_ACTION:
return 'NEEDS-ACTION';
break;
case ACCEPTED:
return 'ACCEPTED';
break;
case DECLINED:
return 'DECLINED';
break;
case TENTATIVE:
return 'TENTATIVE';
break;
case DELEGATED:
return 'DELEGATED';
break;
case COMPLETED:
return 'COMPLETED';
break;
case IN_PROCESS:
return 'IN-PROCESS';
break;
default:
return 'X-OTHER';
break;
}
}
else
{
return $var;
}
}
function switch_range($var)
{
if(is_string($var))
{
switch($var)
{
case 'THISANDPRIOR':
return THISANDPRIOR;
break;
case 'THISANDFUTURE':
return THISANDFUTURE;
break;
}
}
elseif(is_int($var))
{
switch($var)
{
case THISANDPRIOR:
return 'THISANDPRIOR';
break;
case THISANDFUTURE:
return 'THISANDFUTURE';
break;
}
}
else
{
return $var;
}
}
function switch_related($var)
{
if(is_string($var))
{
switch($var)
{
case 'START':
return START;
break;
case 'END':
return END;
break;
}
}
elseif(is_int($var))
{
switch($var)
{
case START:
return 'START';
break;
case END:
return 'END';
break;
}
}
else
{
return $var;
}
}
function switch_reltype($var)
{
if(is_string($var))
{
switch($var)
{
case 'PARENT':
return PARENT;
break;
case 'CHILD':
return CHILD;
break;
case 'SIBLING':
return SIBLING;
break;
}
}
elseif(is_int($var))
{
switch($var)
{
case PARENT:
return 'PARENT';
break;
case CHILD:
return 'CHILD';
break;
case SIBLING:
return 'SIBLING';
break;
}
}
else
{
return $var;
}
}
function switch_role($var)
{
if(is_string($var))
{
switch($var)
{
case 'NONE':
return NONE;
break;
case 'CHAIR':
return CHAIR;
break;
case 'REQ-PARTICIPANT':
return REQ_PARTICIPANT;
break;
case 'OPT-PARTICIPANT':
return OPT_PARTICIPANT;
break;
case 'NON-PARTICIPANT':
return NON_PARTICIPANT;
break;
}
}
elseif(is_int($var))
{
switch($var)
{
case NONE:
return 'NONE';
break;
case CHAIR:
return 'CHAIR';
break;
case REQ_PARTICIPANT:
return 'REQ-PARTICIPANT';
break;
case OPT_PARTICIPANT:
return 'OPT-PARTICIPANT';
break;
case NON_PARTICIPANT:
return 'NON-PARTICIPANT';
break;
}
}
else
{
return $var;
}
}
function switch_rsvp($var)
{
if(is_string($var))
{
if($var == 'TRUE')
{
return 1;
}
elseif($var == 'FALSE')
{
return 0;
}
}
elseif(is_int($var) || $var == False)
{
if($var == 1)
{
return 'TRUE';
}
elseif($var == 0)
{
return 'FALSE';
}
}
else
{
return $var;
}
}
function switch_transp($var)
{
if(is_string($var))
{
switch($var)
{
case 'TRANSPARENT':
return TRANSPARENT;
break;
case 'OPAQUE':
return OPAQUE;
break;
}
}
elseif(is_int($var))
{
switch($var)
{
case TRANSPARENT:
return 'TRANSPARENT';
break;
case OPAQUE:
return 'OPAQUE';
break;
}
}
else
{
return $var;
}
}
/*
* The brunt of the class
*/
function parse($ical_text)
{
$begin_regexp = '^';
$semi_colon_regexp = '[\;\:]';
$colon_regexp = '[\:]';
$catch_all_regexp = '(.*)';
$end_regexp = '$';
$property_regexp = $begin_regexp.'([A-Z\-]*)'.$semi_colon_regexp.$catch_all_regexp.$end_regexp;
$param_regexp = $begin_regexp.$catch_all_regexp.':'.$catch_all_regexp.$end_regexp;
$mode = 'none';
$text = $this->read_line_unfold($ical_text);
while($text)
{
// if(strlen($ical_text[$i]) > 75)
// {
// continue;
// }
ereg($property_regexp,$text,$temp);
$majortype = str_replace('-','_',strtolower($temp[1]));
$value = chop($temp[2]);
if($mode != 'none' && ($majortype != 'begin' && $majortype != 'end'))
{
$this->debug('PARSE:MAJORTYPE : '.$majortype);
if(isset($this->property[$majortype]))
{
$state = @$this->property[$majortype]["$mode"]['state'];
$type = @$this->property[$majortype]['type'];
$multiples = @$this->property[$majortype]["$mode"]['multiples'];
$do_to_text = @$this->property[$majortype]['to_text'];
}
elseif(substr($majortype,0,2) == 'x_')
{
$state = 'optional';
$type = 'xtype';
$multiples = True;
$do_to_test = True;
}
else
{
$state = '';
}
}
else
{
$state = 'required';
}
if($majortype == 'begin')
{
$tmode = $mode;
$mode = strtolower($value);
switch(strtolower($value))
{
case 'daylight':
case 'standard':
$t_event = Array();
$t_event = $event;
$event = Array();
break;
case 'valarm':
if($tmode == 'vevent' || $tmode == 'vtodo')
{
$t_event = $event;
unset($event);
$event = Array();
}
else
{
$mode = $tmode;
}
break;
case 'vcalendar':
$ical = $this->new_ical();
break;
case 'vevent':
case 'vfreebusy':
case 'vjournal':
case 'vtimezone':
case 'vtodo':
$event = Array();
break;
}
$event['type'] = strtolower($value);
}
elseif($majortype == 'end')
{
$mode = 'none';
switch(strtolower($value))
{
case 'daylight':
case 'standard':
$tzdata[] = $event;
unset($event);
$event = $t_event;
unset($t_event);
$mode = 'vtimezone';
break;
case 'valarm':
$alarm[] = $event;
unset($event);
$event = $t_event;
unset($t_event);
$mode = $tmode;
break;
case 'vevent':
if(!empty($alarm))
{
$event['alarm'] = $alarm;
unset($alarm);
}
$this->event[] = $event;
unset($event);
break;
case 'vfreebusy':
$this->freebusy[] = $event;
unset($event);
break;
case 'vjournal':
$this->journal[] = $event;
unset($event);
break;
case 'vtimezone':
if(!empty($tzdata))
{
$event['tzdata'] = $tzdata;
unset($tzdata);
}
$this->timezone[] = $event;
unset($event);
break;
case 'vtodo':
if(!empty($alarm))
{
$event['alarm'] = $alarm;
unset($alarm);
}
$this->todo[] = $event['alarm'];
unset($event);
break;
case 'vcalendar':
$this->ical = $ical;
$this->ical['event'] = $this->event;
$this->ical['freebusy'] = $this->freebusy;
$this->ical['journal'] = $this->journal;
$this->ical['timezone'] = $this->timezone;
$this->ical['todo'] = $this->todo;
break 2;
}
}
elseif($majortype == 'prodid' || $majortype == 'version' || $majortype == 'method' || $majortype == 'calscale')
{
$this->parse_parameters($ical,$majortype,$this->from_text($value));
}
elseif($state == 'optional' || $state == 'required')
{
$this->debug('Mode : '.$mode.' Majortype : '.$majortype);
if($do_to_text)
{
$value = $this->from_text($value);
}
switch($type)
{
case 'text':
$this->parse_parameters($event,$majortype,$value);
break;
case 'recur':
case 'date-time':
case 'cal-address':
$this->parse_value($event,$majortype,$value,$mode);
break;
case 'integer':
if($multiples)
{
$event[$majortype][] = intval($value);
}
else
{
$this->set_var($event,$majortype,intval($value));
}
break;
case 'float':
$event->$majortype = new class_geo;
$this->parse_geo($event->$majortype,$value);
break;
case 'utc-offset':
$this->set_var($event,$majortype,intval($value));
break;
case 'uri':
$new_var = Array();
$this->parse_parameters($new_var,$majortype,$value);
if($multiples)
{
switch($mode)
{
case 'valarm':
$alarm['attach'][] = $new_var;
break;
default:
$event[$majortype][] = $new_var;
break;
}
}
else
{
$event[$majortype] = $new_var;
}
unset($new_var);
break;
case 'xtype':
$this->parse_xtype($event,$majortype,$value);
break;
}
}
$text = $this->read_line_unfold($ical_text);
}
return $this->ical;
}
function build_ical($ical)
{
$var = Array(
'timezone',
'event',
'todo',
'journal',
'freebusy'
);
$str = 'BEGIN:VCALENDAR'."\r\n";
$str .= $this->fold('PRODID'.$this->build_text($ical['prodid'],'prodid'));
$str .= $this->fold('VERSION'.$this->build_text($ical['version'],'version'));
$str .= $this->fold('METHOD'.$this->build_text($ical['method'],'method'));
while(list($key,$vtype) = each($var))
{
if($ical[$vtype])
{
for($i=0;$i<count($ical[$vtype]);$i++)
{
$str .= 'BEGIN:V'.strtoupper($vtype)."\r\n";
$str .= $this->build_card_internals('v'.$vtype,$ical[$vtype][$i]);
$str .= 'END:V'.strtoupper($vtype)."\r\n";
}
}
}
$str .= 'END:VCALENDAR'."\r\n";
return $str;
}
function debug($str='')
{
if($this->debug_str)
{
echo $str."<br>\n";
}
}
}
?>
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