ics.php
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ics.php
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	<?php

	/**
	* DoukWiki DAVCal PlugIn - ICS support server
	*/

	if(!defined('DOKU_INC')) define('DOKU_INC', dirname(__FILE__).'/../../../');
	if (!defined('DOKU_DISABLE_GZIP_OUTPUT')) define('DOKU_DISABLE_GZIP_OUTPUT', 1);
	require_once(DOKU_INC.'inc/init.php');
	session_write_close(); //close session

	global $conf;
	if($conf['allowdebug'])
	dbglog('---- DAVCAL ics.php init');

	$path = explode('/', $_SERVER['REQUEST_URI']);
	$icsFile = end($path);

	// Load the helper plugin
	$hlp = null;
	$hlp =& plugin_load('helper', 'davcal');

	if(is_null($hlp))
	{
	if($conf['allowdebug'])
	dbglog('Error loading helper plugin');
	die('Error loading helper plugin');
	}

	if($hlp->getConfig('disable_ics') === 1)
	{
	if($conf['allowdebug'])
	dbglog('ICS synchronisation is disabled');
	die("ICS synchronisation is disabled");
	}

	// Retrieve calendar ID based on private URI
	$calid = $hlp->getCalendarForPrivateURL($icsFile);

	if($calid === false)
	{
	if($conf['allowdebug'])
	dbglog('No calendar with this name known: '.$icsFile);
	die("No calendar with this name known.");
	}

	// Retrieve calendar contents and serve
	$stream = $hlp->getCalendarAsICSFeed($calid);
	header("Content-Type: text/calendar");
	header("Content-Transfer-Encoding: Binary");
	header("Content-disposition: attachment; filename=\"calendar.ics\"");
	echo $stream;