403 lines
12 KiB
PHP
403 lines
12 KiB
PHP
<?php
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/**
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* module.calendar.php, zarafa calender to ics im/exporter
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*
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* Author: Christoph Haas <christoph.h@sprinternet.at>
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* Copyright (C) 2012-2014 Christoph Haas
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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include_once('vendor/autoload.php');
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use Sabre\VObject;
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class CalendarModule extends Module
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{
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private $DEBUG = true; // enable error_log debugging
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/**
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* @constructor
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* @param $id
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* @param $data
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*/
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public function __construct($id, $data)
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{
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parent::Module($id, $data);
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}
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/**
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* Executes all the actions in the $data variable.
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* Exception part is used for authentication errors also
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* @return boolean true on success or false on failure.
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*/
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public function execute()
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{
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$result = false;
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if (!$this->DEBUG) {
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/* disable error printing - otherwise json communication might break... */
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ini_set('display_errors', '0');
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}
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foreach ($this->data as $actionType => $actionData) {
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if (isset($actionType)) {
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try {
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if ($this->DEBUG) {
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error_log("exec: " . $actionType);
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}
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switch ($actionType) {
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case "load":
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$result = $this->loadCalendar($actionType, $actionData);
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break;
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case "export":
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$result = $this->exportCalendar($actionType, $actionData);
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break;
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case "import":
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$result = $this->importCalendar($actionType, $actionData);
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break;
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case "importattachment":
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$result = $this->getAttachmentPath($actionType, $actionData);
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break;
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default:
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$this->handleUnknownActionType($actionType);
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}
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} catch (MAPIException $e) {
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if ($this->DEBUG) {
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error_log("mapi exception: " . $e->getMessage());
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}
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} catch (Exception $e) {
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if ($this->DEBUG) {
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error_log("exception: " . $e->getMessage());
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}
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}
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}
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}
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return $result;
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}
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/**
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* Generates a random string with variable length.
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* @param $length the lenght of the generated string
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* @return string a random string
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*/
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private function randomstring($length = 6)
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{
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// $chars - all allowed charakters
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$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
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srand((double)microtime() * 1000000);
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$i = 0;
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$pass = "";
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while ($i < $length) {
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$num = rand() % strlen($chars);
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$tmp = substr($chars, $num, 1);
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$pass = $pass . $tmp;
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$i++;
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}
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return $pass;
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}
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/**
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* The main export function, creates the ics file for download
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* @param $actionType
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* @param $actionData
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*/
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private function exportCalendar($actionType, $actionData)
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{
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// TODO: implement
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}
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/**
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* The main import function, parses the uploaded ics file
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* @param $actionType
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* @param $actionData
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*/
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private function importCalendar($actionType, $actionData)
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{
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// TODO: implement
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}
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/**
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* Store the file to a temporary directory, prepare it for oc upload
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* @param $actionType
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* @param $actionData
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* @private
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*/
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private function getAttachmentPath($actionType, $actionData)
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{
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// Get store id
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$storeid = false;
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if (isset($actionData["store"])) {
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$storeid = $actionData["store"];
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}
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// Get message entryid
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$entryid = false;
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if (isset($actionData["entryid"])) {
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$entryid = $actionData["entryid"];
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}
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// Check which type isset
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$openType = "attachment";
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// Get number of attachment which should be opened.
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$attachNum = false;
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if (isset($actionData["attachNum"])) {
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$attachNum = $actionData["attachNum"];
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}
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// Check if storeid and entryid isset
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if ($storeid && $entryid) {
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// Open the store
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$store = $GLOBALS["mapisession"]->openMessageStore(hex2bin($storeid));
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if ($store) {
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// Open the message
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$message = mapi_msgstore_openentry($store, hex2bin($entryid));
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if ($message) {
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$attachment = false;
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// Check if attachNum isset
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if ($attachNum) {
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// Loop through the attachNums, message in message in message ...
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for ($i = 0; $i < (count($attachNum) - 1); $i++) {
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// Open the attachment
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$tempattach = mapi_message_openattach($message, (int)$attachNum[$i]);
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if ($tempattach) {
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// Open the object in the attachment
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$message = mapi_attach_openobj($tempattach);
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}
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}
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// Open the attachment
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$attachment = mapi_message_openattach($message, (int)$attachNum[(count($attachNum) - 1)]);
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}
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// Check if the attachment is opened
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if ($attachment) {
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// Get the props of the attachment
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$props = mapi_attach_getprops($attachment, array(PR_ATTACH_LONG_FILENAME, PR_ATTACH_MIME_TAG, PR_DISPLAY_NAME, PR_ATTACH_METHOD));
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// Content Type
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$contentType = "application/octet-stream";
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// Filename
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$filename = "ERROR";
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// Set filename
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if (isset($props[PR_ATTACH_LONG_FILENAME])) {
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$filename = $props[PR_ATTACH_LONG_FILENAME];
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} else {
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if (isset($props[PR_ATTACH_FILENAME])) {
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$filename = $props[PR_ATTACH_FILENAME];
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} else {
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if (isset($props[PR_DISPLAY_NAME])) {
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$filename = $props[PR_DISPLAY_NAME];
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}
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}
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}
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// Set content type
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if (isset($props[PR_ATTACH_MIME_TAG])) {
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$contentType = $props[PR_ATTACH_MIME_TAG];
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} else {
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// Parse the extension of the filename to get the content type
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if (strrpos($filename, ".") !== false) {
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$extension = strtolower(substr($filename, strrpos($filename, ".")));
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$contentType = "application/octet-stream";
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if (is_readable("mimetypes.dat")) {
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$fh = fopen("mimetypes.dat", "r");
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$ext_found = false;
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while (!feof($fh) && !$ext_found) {
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$line = fgets($fh);
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preg_match("/(\.[a-z0-9]+)[ \t]+([^ \t\n\r]*)/i", $line, $result);
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if ($extension == $result[1]) {
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$ext_found = true;
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$contentType = $result[2];
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}
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}
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fclose($fh);
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}
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}
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}
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$tmpname = tempnam(TMP_PATH, stripslashes($filename));
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// Open a stream to get the attachment data
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$stream = mapi_openpropertytostream($attachment, PR_ATTACH_DATA_BIN);
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$stat = mapi_stream_stat($stream);
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// File length = $stat["cb"]
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$fhandle = fopen($tmpname, 'w');
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$buffer = null;
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for ($i = 0; $i < $stat["cb"]; $i += BLOCK_SIZE) {
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// Write stream
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$buffer = mapi_stream_read($stream, BLOCK_SIZE);
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fwrite($fhandle, $buffer, strlen($buffer));
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}
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fclose($fhandle);
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$response = array();
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$response['tmpname'] = $tmpname;
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$response['filename'] = $filename;
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$response['status'] = true;
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$this->addActionData($actionType, $response);
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$GLOBALS["bus"]->addData($this->getResponseData());
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}
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}
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} else {
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$response['status'] = false;
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$response['message'] = "Store could not be opened!";
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$this->addActionData($actionType, $response);
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$GLOBALS["bus"]->addData($this->getResponseData());
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}
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} else {
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$response['status'] = false;
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$response['message'] = "Wrong call, store and entryid have to be set!";
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$this->addActionData($actionType, $response);
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$GLOBALS["bus"]->addData($this->getResponseData());
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}
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}
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/**
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* Function that parses the uploaded ics file and posts it via json
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* @param $actionType
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* @param $actionData
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*/
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private function loadCalendar($actionType, $actionData)
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{
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$error = false;
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$error_msg = "";
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if (is_readable($actionData["ics_filepath"])) {
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$parser = null;
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try {
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$parser = VObject\Reader::read(
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fopen($actionData["ics_filepath"],'r')
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);
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error_log(print_r($parser->VTIMEZONE, true));
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} catch (Exception $e) {
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$error = true;
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$error_msg = $e->getMessage();
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}
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if ($error) {
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$response['status'] = false;
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$response['message'] = $error_msg;
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} else {
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if (count($parser->VEVENT) == 0) {
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$response['status'] = false;
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$response['message'] = "No event in ics file";
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} else {
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$response['status'] = true;
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$response['parsed_file'] = $actionData["ics_filepath"];
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$response['parsed'] = array(
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'events' => $this->parseCalendarToArray($parser),
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'timezone' => isset($parser->VTIMEZONE->TZID) ? (string)$parser->VTIMEZONE->TZID : (string)$parser->{'X-WR-TIMEZONE'},
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'calendar' => (string)$parser->PRODID
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);
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}
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}
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} else {
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$response['status'] = false;
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$response['message'] = "File could not be read by server";
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}
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$this->addActionData($actionType, $response);
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$GLOBALS["bus"]->addData($this->getResponseData());
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if ($this->DEBUG) {
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error_log("parsing done, bus data written!");
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}
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}
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/**
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* Create a array with contacts
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*
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* @param {VObject} $calendar ics parser object
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* @return array parsed events
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* @private
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*/
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private function parseCalendarToArray($calendar)
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{
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$events = array();
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foreach ($calendar->VEVENT as $Index => $vEvent) {
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// Sabre\VObject\Parser\XML\Element\VEvent
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$properties = array();
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//uid - used for front/backend communication
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$properties["internal_fields"] = array();
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$properties["internal_fields"]["event_uid"] = base64_encode($Index . $vEvent->UID);
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$properties["startdate"] = (string)$vEvent->DTSTART->getDateTime()->getTimestamp();
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$properties["enddate"] = (string)$vEvent->DTEND->getDateTime()->getTimestamp();
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$properties["location"] = (string)$vEvent->LOCATION;
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$properties["subject"] = (string)$vEvent->SUMMARY;
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$properties["body"] = (string)$vEvent->DESCRIPTION;
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$properties["comment"] = (string)$vEvent->COMMENT;
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$properties["timezone"] = (string)$vEvent->DTSTART["TZID"];
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$properties["organizer"] = (string)$vEvent->ORGANIZER;
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$properties["busy"] = (string)$vEvent->{'X-MICROSOFT-CDO-INTENDEDSTATUS'}; // X-MICROSOFT-CDO-BUSYSTATUS
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$properties["transp"] = (string)$vEvent->TRANSP;
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//$properties["trigger"] = (string)$vEvent->COMMENT;
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$properties["priority"] = (string)$vEvent->PRIORITY;
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$properties["class"] = (string)$vEvent->CLASS;
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//$properties["label"] = (string)$vEvent->COMMENT;
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$properties["lastmodified"] = (string)$vEvent->{'LAST-MODIFIED'};
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$properties["created"] = (string)$vEvent->CREATED;
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$properties["rrule"] = (string)$vEvent->RRULE;
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// Attendees
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$properties["attendees"] = array();
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if(isset($vEvent->ATTENDEE) && count($vEvent->ATTENDEE) > 0) {
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foreach($vEvent->ATTENDEE as $attendee) {
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$properties["attendees"][] = array(
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"name" => (string)$attendee["CN"],
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"mail" => (string)$attendee,
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"status" => (string)$attendee["PARTSTAT"],
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"role" => (string)$attendee["ROLE"]
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);
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}
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}
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// Alarms
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$properties["alarms"] = array();
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if(isset($vEvent->VALARM) && count($vEvent->VALARM) > 0) {
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foreach($vEvent->VALARM as $alarm) {
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$properties["alarms"][] = array(
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"description" => (string)$alarm->DESCRIPTION,
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"trigger" => (string)$alarm->TRIGGER,
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"type" => (string)$alarm->TRIGGER["VALUE"]
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);
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}
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}
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array_push($events, $properties);
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}
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return $events;
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}
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}
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;
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?>
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