calendarimporter/php/module.calendarexporter.php

170 lines
4.6 KiB
PHP

<?php
/**
* class.calendarexporter.php, zarafa calender to ics exporter
*
* Author: Christoph Haas <christoph.h@sprinternet.at>
* Copyright (C) 2012 Christoph Haas
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/**
* This module integrates Owncloud into attachment part of emails
* @class OwncloudModule
* @extends Module
*/
class CalendarexporterModule extends Module {
private $DEBUG = true; // enable error_log debugging
/**
* @constructor
* @param $id
* @param $data
*/
public function __construct($id, $data) {
parent::Module($id, $data);
}
/**
* Executes all the actions in the $data variable.
* Exception part is used for authentication errors also
* @return boolean true on success or false on failure.
*/
public function execute() {
$result = false;
foreach($this->data as $actionType => $actionData) {
if(isset($actionType)) {
try {
if($this->DEBUG) {
error_log("exec: " . $actionType);
}
switch($actionType) {
case "export":
$result = $this->exportCalendar($actionType, $actionData);
break;
default:
$this->handleUnknownActionType($actionType);
}
} catch (MAPIException $e) {
if($this->DEBUG) {
error_log("mapi exception: " . $e->getMessage());
}
} catch (Exception $e) {
if($this->DEBUG) {
error_log("exception: " . $e->getMessage());
}
}
}
}
return $result;
}
private function randomstring($length = 6) {
// $chars - all allowed charakters
$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
srand((double)microtime()*1000000);
$i = 0;
while ($i < $length) {
$num = rand() % strlen($chars);
$tmp = substr($chars, $num, 1);
$pass = $pass . $tmp;
$i++;
}
return $pass;
}
private function createSecIDFile($secid) {
$lockFile = TMP_PATH . "/secid." . $secid;
$fh = fopen($lockFile, 'w') or die("can't open secid file");
$stringData = date(DATE_RFC822);
fwrite($fh, $stringData);
fclose($fh);
}
private function writeICSHead($fh, $calname) {
$icshead = "BEGIN:VCALENDAR\nVERSION:2.0\nPRODID:-//Zarafa Webapp//Zarafa Calendar Exporter//DE\nMETHOD:PUBLISH\nX-WR-CALNAME:" . $calname. "\n";
fwrite($fh, $icshead);
}
private function writeICSEnd($fh) {
$icsend = "END:VCALENDAR";
fwrite($fh, $icsend);
}
private function writeEvent($fh, $event) {
$head = "BEGIN:VEVENT\n";
$end = "END:VEVENT\n";
$fields = array(
"DTSTART" => $event["startdate"],
"DTEND" => $event["duedate"],
"DTSTAMP" => $event["creation_time"],
"DESCRIPTION" => "nothing...",
"LOCATION" => $event["location"],
"SUMMARY" => $event["subject"]
);
fwrite($fh, $head);
// event fields:
foreach ($fields as $key => $value) {
fwrite($fh, $key . ": " . $value . "\n");
}
unset($fields);
fwrite($fh, $end);
}
private function exportCalendar($actionType, $actionData) {
$secid = $this->randomstring();
$this->createSecIDFile($secid);
$tmpname = stripslashes($actionData["calendar"] . ".ics." . $this->randomstring(8));
$filename = TMP_PATH . "/" . $tmpname . "." . $secid;
// create ics file....
$fh = fopen($filename, 'w') or die("can't open ics file");
$this->writeICSHead($fh, $actionData["calendar"]);
foreach($actionData["data"]["item"] as $event) {
$this->writeEvent($fh, $event["props"]);
}
$this->writeICSEnd($fh);
fclose($fh);
$response['status'] = true;
$response['fileid'] = $tmpname; // number of entries that will be exported
$response['basedir'] = TMP_PATH;
$response['secid'] = $secid;
$response['realname'] = $actionData["calendar"];
$this->addActionData($actionType, $response);
$GLOBALS["bus"]->addData($this->getResponseData());
if($this->DEBUG) {
error_log("export done, bus data written!");
}
}
};
?>