mirror of
https://github.com/FH-Complete/FHC-Core.git
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WIP: Second version of cal dav with new tempus structure
This commit is contained in:
Ivymaster
@@ -1,971 +1,16 @@
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<?php
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require_once __DIR__.'/caldav/SabreDAVACLPrincipalBackend.php';
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require_once __DIR__.'/caldav/SabreDAVCalDAVBackend.php';
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require_once __DIR__.'/caldav/SabreDAVReadOnlyACL.php';
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require_once __DIR__.'/caldav/SabreDAVReadOnlyCalendarRoot.php';
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require_once __DIR__.'/caldav/SabreDAVReadOnlyCalendarHome.php';
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require_once __DIR__.'/caldav/SabreDAVReadOnlyCalendar.php';
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require_once __DIR__.'/caldav/SabreDAVReadOnlyCalendarObject.php';
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/**
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* SabreDAV CalDAV classes for the LVPlan calendar endpoint.
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* Loads the SabreDAV CalDAV classes for the LVPlan calendar endpoint.
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*/
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class SabreDAVCalDAVLib
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{
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}
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/**
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* PDO principal backend
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*
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* This is a simple principal backend that maps exactly to the users table, as
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* used by Sabre_DAV_Auth_Backend_PDO.
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*
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* It assumes all principals are in a single collection. The default collection
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* is 'principals/', but this can be overriden.
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*
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* @package Sabre
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* @subpackage DAVACL
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* @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
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* @author Evert Pot (http://www.rooftopsolutions.nl/)
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* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
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*/
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class SabreDAVACLPrincipalBackendLib implements \Sabre\DAVACL\PrincipalBackend\BackendInterface
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{
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/**
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* PDO table name for 'principals'
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*
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* @var string
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*/
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protected $tableName;
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/**
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* PDO table name for 'group members'
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*
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* @var string
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*/
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protected $groupMembersTableName;
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protected $result_ma;
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protected $auth;
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/**
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* Sets up the backend.
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*
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* @param PDO $pdo
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* @param string $tableName
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*/
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public function __construct($auth)
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{
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$this->auth = $auth;
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/*
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$ma = new mitarbeiter();
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$this->result_ma = $ma->getMitarbeiter(null,null,null);
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*/
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}
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/**
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* Liefert den eingeloggten User
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*/
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function getUser()
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{
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return $this->auth->getCurrentUser();
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}
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/**
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* Returns a list of principals based on a prefix.
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*
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* This prefix will often contain something like 'principals'. You are only
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* expected to return principals that are in this base path.
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*
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* You are expected to return at least a 'uri' for every user, you can
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* return any additional properties if you wish so. Common properties are:
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* {DAV:}displayname
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* {http://sabredav.org/ns}email-address - This is a custom SabreDAV
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* field that's actualy injected in a number of other properties. If
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* you have an email address, use this property.
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*
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* @param string $prefixPath
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* @return array
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*/
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public function getPrincipalsByPrefix($prefixPath)
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{
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//$prefixPath = principals
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//error_log('Principal.php/getPrincipalsByPrefix('.$prefixPath.')');
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$principals = array();
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$user = $this->getUser();
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if($prefixPath=='principals')
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{
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$principals[] = array(
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'id' => $user,
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'uri' => 'principals/'.$user,
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'{DAV:}displayname' => $user,
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'{http://sabredav.org/ns}email-address' => $user.'@example.com',
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);
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}
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return $principals;
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}
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/**
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* Returns a specific principal, specified by it's path.
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* The returned structure should be the exact same as from
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* getPrincipalsByPrefix.
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*
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* @param string $path
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* @return array
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*/
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public function getPrincipalByPath($path)
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{
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$user = mb_substr($path,11);
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$result = array(
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'id' => $user,
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'uri' => 'principals/'.$user,
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'{DAV:}displayname' => $user,
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'{http://sabredav.org/ns}email-address' => $user.'@example.com',
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);
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return $result;
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}
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/**
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* Returns the list of members for a group-principal
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*
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* @param string $principal
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* @return array
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*/
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public function getGroupMemberSet($principal)
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{
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$result = array();
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return $result;
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}
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/**
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* Returns the list of groups a principal is a member of
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*
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* @param string $principal
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* @return array
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*/
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public function getGroupMembership($principal)
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{
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$result = array();
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if(preg_match('/^principals\/[0-9A-Za-z\-]*$/',$principal))
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{
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$user = mb_substr($principal,11);
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}
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return $result;
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}
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/**
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* Updates the list of group members for a group principal.
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*
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* The principals should be passed as a list of uri's.
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*
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* @param string $principal
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* @param array $members
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* @return void
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*/
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public function setGroupMemberSet($principal, array $members)
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{
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throw new \Sabre\DAV\Exception('Not implemented');
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}
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public function updatePrincipal($path, \Sabre\DAV\PropPatch $propPatch)
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{
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$propPatch->setRemainingResultCode(403);
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}
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public function searchPrincipals($prefixPath, array $searchProperties, $test = 'allof')
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{
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return array();
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}
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public function findByUri($uri, $principalPrefix)
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{
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return null;
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}
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}
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/**
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* CalDAV backend
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*/
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class SabreDAVCalDAVBackendLib extends \Sabre\CalDAV\Backend\AbstractBackend
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{
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protected $auth;
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protected $CI;
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/**
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* Creates the backend
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*
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* @param AuthBackend $auth
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*/
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public function __construct($auth)
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{
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$this->auth = $auth;
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$this->CI =& get_instance();
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}
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/**
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* Liefert den eingeloggten User
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*/
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function getUser()
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{
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return $this->auth->getCurrentUser();
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}
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/**
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* Returns a list of calendars for a principal.
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*
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* Every project is an array with the following keys:
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* * id, a unique id that will be used by other functions to modify the
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* calendar. This can be the same as the uri or a database key.
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* * uri, which the basename of the uri with which the calendar is
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* accessed.
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* * principalUri. The owner of the calendar. Almost always the same as
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* principalUri passed to this method.
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*
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* Furthermore it can contain webdav properties in clark notation. A very
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* common one is '{DAV:}displayname'.
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*
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* @param string $principalUri
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* @return array
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*/
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public function getCalendarsForUser($principalUri)
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{
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$user = mb_substr($principalUri,11);
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$calendars = array();
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$calendar = array(
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'id' => $user,
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'uri' => 'LVPlan-'.$user,
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'principaluri' => 'principals/'.$user,
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'{' . \Sabre\CalDAV\Plugin::NS_CALENDARSERVER . '}getctag' => $this->buildCalendarCtag($user),
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'{' . \Sabre\CalDAV\Plugin::NS_CALDAV . '}supported-calendar-component-set' => new \Sabre\CalDAV\Xml\Property\SupportedCalendarComponentSet(array('VEVENT')),
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'{DAV:}displayname' => 'LVPlan',
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'{urn:ietf:params:xml:ns:caldav}calendar-description' => 'description comes here',
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'{urn:ietf:params:xml:ns:caldav}calendar-timezone' => 'Europe/Vienna',
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'{http://apple.com/ns/ical/}calendar-order' => '1',
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'{http://apple.com/ns/ical/}calendar-color' => '#FF0000',
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'{http://sabredav.org/ns}read-only' => 1
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);
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$calendars[] = $calendar;
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return $calendars;
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}
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/**
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* Creates a new calendar for a principal.
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*
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* If the creation was a success, an id must be returned that can be used to reference
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* this calendar in other methods, such as updateCalendar
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*
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* @param string $principalUri
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* @param string $calendarUri
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* @param array $properties
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*/
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public function createCalendar($principalUri,$calendarUri, array $properties)
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{
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return $calendarUri;
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}
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/**
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* Updates properties for a calendar.
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*
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* The mutations array uses the propertyName in clark-notation as key,
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* and the array value for the property value. In the case a property
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* should be deleted, the property value will be null.
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*
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* This method must be atomic. If one property cannot be changed, the
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* entire operation must fail.
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*
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* If the operation was successful, true can be returned.
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* If the operation failed, false can be returned.
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*
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* Deletion of a non-existant property is always succesful.
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*
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* Lastly, it is optional to return detailed information about any
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* failures. In this case an array should be returned with the following
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* structure:
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*
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* array(
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* 403 => array(
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* '{DAV:}displayname' => null,
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* ),
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* 424 => array(
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* '{DAV:}owner' => null,
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* )
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* )
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*
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* In this example it was forbidden to update {DAV:}displayname.
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* (403 Forbidden), which in turn also caused {DAV:}owner to fail
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* (424 Failed Dependency) because the request needs to be atomic.
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*
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* @param string $calendarId
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* @param array $mutations
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* @return bool|array
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*/
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public function updateCalendar($calendarId, \Sabre\DAV\PropPatch $propPatch)
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{
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$propPatch->setRemainingResultCode(200);
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}
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/**
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* Delete a calendar and all it's objects
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*
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* @param string $calendarId
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* @return void
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*/
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public function deleteCalendar($calendarId)
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{
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return null;
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}
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public function getCalendarData($userUID, $objectUri=null)
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{
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$this->CI->load->model("ressource/Mitarbeiter_model", "MitarbeiterModel");
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$this->CI->load->model("person/Benutzer_model", "BenutzerModel");
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$user = $this->CI->BenutzerModel->loadWhere(array("uid" => $userUID));
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if(!$user)
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die('User invalid');
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$this->CI->load->library('KalenderLib', ['uid' => $userUID]);
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$isUserEmployeeResult = $this->CI->MitarbeiterModel->isMitarbeiter($userUID);
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if (isError($isUserEmployeeResult)) {
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return;
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}
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$isUserEmployee = getData($isUserEmployeeResult);
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$startDate = date('Y-m-d', mktime(0,0,0,date('m'),date('d')-14,date('Y')));
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$endDate = date('Y-m-d', mktime(0,0,0,date('m')+6,date('d'),date('Y')));
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$data = [];
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if ($isUserEmployee) {
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$data = $this->CI->kalenderlib->getPlanForLecturerByLecturer($startDate, $endDate, $userUID);
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} else {
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$data = $this->CI->kalenderlib->getPlanForStudentByStudent($startDate, $endDate, $userUID);
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}
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if(!is_array($data))
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$data = array();
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foreach($data as $item)
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{
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$item->calendarDataFragment = $this->buildCalendarDataFragment($item);
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}
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if (is_null($objectUri))
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{
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return $data;
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}
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$normalizedObjectUri = $this->normalizeObjectUri($objectUri);
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foreach($data as $row)
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{
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if(md5($row->eindeutige_gruppen_id) == $normalizedObjectUri)
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{
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return $row;
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}
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}
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return null;
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}
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public function makeCal($event)
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{
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return $this->buildICalLine('BEGIN', 'VCALENDAR')
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.$this->buildICalLine('VERSION', '2.0')
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.$this->buildICalTextLine('PRODID', 'FH Technikum Wien')
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.$this->buildICalLine('BEGIN', 'VTIMEZONE')
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.$this->buildICalLine('TZID', 'Europe/Vienna')
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.$this->buildICalLine('BEGIN', 'DAYLIGHT')
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.$this->buildICalLine('TZOFFSETFROM', '+0100')
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.$this->buildICalLine('RRULE', 'FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU')
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.$this->buildICalLine('DTSTART', '19810329T020000')
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.$this->buildICalLine('TZNAME', 'GMT+02:00')
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.$this->buildICalLine('TZOFFSETTO', '+0200')
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.$this->buildICalLine('END', 'DAYLIGHT')
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.$this->buildICalLine('BEGIN', 'STANDARD')
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.$this->buildICalLine('TZOFFSETFROM', '+0200')
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.$this->buildICalLine('RRULE', 'FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU')
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.$this->buildICalLine('DTSTART', '19961027T030000')
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.$this->buildICalLine('TZNAME', 'GMT+01:00')
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.$this->buildICalLine('TZOFFSETTO', '+0100')
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.$this->buildICalLine('END', 'STANDARD')
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.$this->buildICalLine('END', 'VTIMEZONE')
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.$event
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.$this->buildICalLine('END', 'VCALENDAR');
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}
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protected function buildCalendarDataFragment($item)
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{
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$summary = $item->type == 'reservierung' ? $item->titel : $item->topic;
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$description = "";
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if ($item->type == 'reservierung') {
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$description = $item->beschreibung;
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} else {
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$description = $item->lehrfach_bez . "\r\n";
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if (isset($item->lektor) && is_array($item->lektor) && count($item->lektor) > 0) {
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$description .= "Lehrer: " . join(", ", array_map(function($teacher) { return $teacher["kurzbz"]; }, $item->lektor)) . "\r\n";
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}
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}
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$parsedStartDate = $this->formatICalLocalDateTime($item->isostart);
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$parsedEndDate = $this->formatICalLocalDateTime($item->isoend);
|
||||
$lastModified = $this->formatICalUtcDateTime(isset($item->updateamum) ? $item->updateamum : null);
|
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$dtStamp = $lastModified ?: $this->formatICalUtcDateTime($item->isostart);
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||||
|
||||
if($dtStamp === null)
|
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$dtStamp = '19700101T000000Z';
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||||
|
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$fragment = $this->buildICalLine('BEGIN', 'VEVENT')
|
||||
.$this->buildICalTextLine('UID', $item->eindeutige_gruppen_id)
|
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.$this->buildICalLine('SEQUENCE', (int)$item->kalender_id)
|
||||
.$this->buildICalTextLine('SUMMARY', $summary)
|
||||
.$this->buildICalTextLine('DESCRIPTION', 'TODO')
|
||||
.$this->buildICalTextLine('LOCATION', isset($item->ort_kurzbz) ? $item->ort_kurzbz : '')
|
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.$this->buildICalTextLine('CATEGORIES', 'Stundenplans')
|
||||
.$this->buildICalLine('DTSTART', $parsedStartDate, array('TZID' => 'Europe/Vienna'))
|
||||
.$this->buildICalLine('DTEND', $parsedEndDate, array('TZID' => 'Europe/Vienna'));
|
||||
|
||||
if($lastModified !== null)
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||||
$fragment .= $this->buildICalLine('LAST-MODIFIED', $lastModified);
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||||
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return $fragment
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||||
.$this->buildICalLine('DTSTAMP', $dtStamp)
|
||||
.$this->buildICalLine('END', 'VEVENT');
|
||||
}
|
||||
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||||
protected function buildCalendarCtag($userUID)
|
||||
{
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||||
$data = $this->getCalendarData($userUID);
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||||
if(!is_array($data))
|
||||
$data = array();
|
||||
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||||
$fragments = array();
|
||||
foreach($data as $row)
|
||||
{
|
||||
$lastModified = isset($row->updateamum) ? $this->getLastModifiedTimestamp($row->updateamum) : null;
|
||||
$calendarData = isset($row->calendarDataFragment) ? $this->makeCal($row->calendarDataFragment) : '';
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||||
$fragments[] = $this->getObjectUri($row).':'.$lastModified.':'.md5($calendarData);
|
||||
}
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||||
|
||||
sort($fragments, SORT_STRING);
|
||||
return 'LVPlan-'.$userUID.'-'.md5(implode('|', $fragments));
|
||||
}
|
||||
|
||||
protected function buildICalTextLine($name, $value, array $parameters = array())
|
||||
{
|
||||
return $this->buildICalLine($name, $this->escapeICalText($value), $parameters);
|
||||
}
|
||||
|
||||
protected function buildICalLine($name, $value, array $parameters = array())
|
||||
{
|
||||
$line = strtoupper($name);
|
||||
|
||||
foreach($parameters as $parameterName => $parameterValue)
|
||||
{
|
||||
$parameterValues = is_array($parameterValue) ? $parameterValue : array($parameterValue);
|
||||
$escapedValues = array();
|
||||
|
||||
foreach($parameterValues as $singleParameterValue)
|
||||
$escapedValues[] = $this->escapeICalParameterValue($singleParameterValue);
|
||||
|
||||
$line .= ';'.strtoupper($parameterName).'='.implode(',', $escapedValues);
|
||||
}
|
||||
|
||||
return $this->foldICalLine($line.':'.(string)$value);
|
||||
}
|
||||
|
||||
protected function foldICalLine($line)
|
||||
{
|
||||
$line = (string)$line;
|
||||
$folded = '';
|
||||
|
||||
while(strlen($line) > 75)
|
||||
{
|
||||
$part = mb_strcut($line, 0, 75, 'UTF-8');
|
||||
$folded .= $part."\r\n";
|
||||
$line = ' '.mb_strcut($line, strlen($part), strlen($line) - strlen($part), 'UTF-8');
|
||||
}
|
||||
|
||||
return $folded.$line."\r\n";
|
||||
}
|
||||
|
||||
protected function escapeICalText($value)
|
||||
{
|
||||
$value = (string)$value;
|
||||
$value = str_replace('\\', '\\\\', $value);
|
||||
$value = str_replace(array("\r\n", "\r", "\n"), '\n', $value);
|
||||
return str_replace(array(';', ','), array('\;', '\,'), $value);
|
||||
}
|
||||
|
||||
protected function escapeICalParameterValue($value)
|
||||
{
|
||||
$value = (string)$value;
|
||||
$value = str_replace(array('\\', '"', "\r", "\n"), array('\\\\', '\"', '', ''), $value);
|
||||
|
||||
if(preg_match('/[;:,]/', $value))
|
||||
return '"'.$value.'"';
|
||||
|
||||
return $value;
|
||||
}
|
||||
|
||||
protected function formatICalLocalDateTime($dateTime)
|
||||
{
|
||||
$dateTime = $this->createDateTime($dateTime);
|
||||
if($dateTime === null)
|
||||
return null;
|
||||
|
||||
$dateTime->setTimezone(new DateTimeZone('Europe/Vienna'));
|
||||
return $dateTime->format('Ymd\THis');
|
||||
}
|
||||
|
||||
protected function formatICalUtcDateTime($dateTime)
|
||||
{
|
||||
$dateTime = $this->createDateTime($dateTime);
|
||||
if($dateTime === null)
|
||||
return null;
|
||||
|
||||
$dateTime->setTimezone(new DateTimeZone('UTC'));
|
||||
return $dateTime->format('Ymd\THis\Z');
|
||||
}
|
||||
|
||||
protected function createDateTime($dateTime)
|
||||
{
|
||||
if($dateTime instanceof DateTime)
|
||||
return clone $dateTime;
|
||||
|
||||
if($dateTime === null || $dateTime === '')
|
||||
return null;
|
||||
|
||||
try
|
||||
{
|
||||
if(is_numeric($dateTime))
|
||||
return new DateTime('@'.(int)$dateTime);
|
||||
|
||||
return new DateTime($dateTime);
|
||||
}
|
||||
catch(Exception $e)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
protected function getObjectUri($row)
|
||||
{
|
||||
return md5($row->eindeutige_gruppen_id).'.ics';
|
||||
}
|
||||
|
||||
protected function normalizeObjectUri($objectUri)
|
||||
{
|
||||
$normalizedObjectUri = (string)$objectUri;
|
||||
|
||||
if(substr($normalizedObjectUri, -4) === '.ics')
|
||||
$normalizedObjectUri = substr($normalizedObjectUri, 0, -4);
|
||||
|
||||
if(mb_strpos($normalizedObjectUri, '@') !== false)
|
||||
$normalizedObjectUri = mb_substr($normalizedObjectUri, mb_strpos($normalizedObjectUri, '@') + 1);
|
||||
|
||||
if($this->hasObjectUriDatePrefix($normalizedObjectUri))
|
||||
return mb_substr($normalizedObjectUri, mb_strpos($normalizedObjectUri, '-') + 1);
|
||||
|
||||
return $normalizedObjectUri;
|
||||
}
|
||||
|
||||
protected function hasObjectUriDatePrefix($objectUri)
|
||||
{
|
||||
$hyphenPosition = mb_strpos($objectUri, '-');
|
||||
if($hyphenPosition !== 15)
|
||||
return false;
|
||||
|
||||
return preg_match('/^\d{8}T\d{6}$/', mb_substr($objectUri, 0, 15)) === 1;
|
||||
}
|
||||
|
||||
protected function buildCalendarObject($row, $calendarId)
|
||||
{
|
||||
$calendarData = $this->makeCal($row->calendarDataFragment);
|
||||
|
||||
return array(
|
||||
"id"=>$row->eindeutige_gruppen_id,
|
||||
"calendardata"=>$calendarData,
|
||||
"uri"=>$this->getObjectUri($row),
|
||||
"lastmodified"=>$this->getLastModifiedTimestamp($row->updateamum),
|
||||
"etag"=>'"'.md5($calendarData).'"',
|
||||
"calendarid"=>$calendarId,
|
||||
"size"=>strlen($calendarData),
|
||||
"component"=>'vevent'
|
||||
);
|
||||
}
|
||||
|
||||
protected function getLastModifiedTimestamp($lastModified)
|
||||
{
|
||||
if($lastModified === null || $lastModified === '')
|
||||
return null;
|
||||
|
||||
if(is_numeric($lastModified))
|
||||
return (int)$lastModified;
|
||||
|
||||
$timestamp = strtotime($lastModified);
|
||||
if($timestamp === false)
|
||||
return null;
|
||||
|
||||
return $timestamp;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns all calendar objects within a calendar.
|
||||
*
|
||||
* Every item contains an array with the following keys:
|
||||
* * id - unique identifier which will be used for subsequent updates
|
||||
* * calendardata - The iCalendar-compatible calnedar data
|
||||
* * uri - a unique key which will be used to construct the uri. This can be any arbitrary string.
|
||||
* * lastmodified - a timestamp of the last modification time
|
||||
* * etag - An arbitrary string, surrounded by double-quotes. (e.g.:
|
||||
* ' "abcdef"')
|
||||
* * calendarid - The calendarid as it was passed to this function.
|
||||
*
|
||||
* Note that the etag is optional, but it's highly encouraged to return for
|
||||
* speed reasons.
|
||||
*
|
||||
* The calendardata is also optional. If it's not returned
|
||||
* 'getCalendarObject' will be called later, which *is* expected to return
|
||||
* calendardata.
|
||||
*
|
||||
* @param string $calendarId
|
||||
* @return array
|
||||
*/
|
||||
public function getCalendarObjects($calendarId)
|
||||
{
|
||||
//$user = $this->getUser();
|
||||
$user = $calendarId;
|
||||
$data = $this->getCalendarData($user);
|
||||
|
||||
//error_log("Caldav_Backend.php/getCalendarObjects($calendarId) ");
|
||||
$return = array();
|
||||
|
||||
if(!is_array($data))
|
||||
return $return;
|
||||
|
||||
foreach($data as $row)
|
||||
{
|
||||
$return[] = $this->buildCalendarObject($row, $calendarId);
|
||||
}
|
||||
return $return;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns information from a single calendar object, based on it's object
|
||||
* uri.
|
||||
*
|
||||
* The returned array must have the same keys as getCalendarObjects. The
|
||||
* 'calendardata' object is required here though, while it's not required
|
||||
* for getCalendarObjects.
|
||||
*
|
||||
* @param string $calendarId
|
||||
* @param string $objectUri
|
||||
* @return array
|
||||
*/
|
||||
public function getCalendarObject($calendarId,$objectUri)
|
||||
{
|
||||
$user = $calendarId;
|
||||
$data = $this->getCalendarData($user,$objectUri);
|
||||
|
||||
if(empty($data))
|
||||
{
|
||||
return null;
|
||||
}
|
||||
elseif(is_object($data))
|
||||
{
|
||||
$ret = $this->buildCalendarObject($data, $calendarId);
|
||||
}
|
||||
|
||||
return isset($ret) ? $ret : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a new calendar object.
|
||||
*
|
||||
* @param string $calendarId
|
||||
* @param string $objectUri
|
||||
* @param string $calendarData
|
||||
* @return void
|
||||
*/
|
||||
public function createCalendarObject($calendarId,$objectUri,$calendarData)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Updates an existing calendarobject, based on it's uri.
|
||||
*
|
||||
* @param string $calendarId
|
||||
* @param string $objectUri
|
||||
* @param string $calendarData
|
||||
* @return void
|
||||
*/
|
||||
public function updateCalendarObject($calendarId,$objectUri,$calendarData)
|
||||
{
|
||||
if(is_resource($calendarData))
|
||||
$calendarData = stream_get_contents($calendarData);
|
||||
|
||||
return '"'.md5((string)$calendarData).'"';
|
||||
}
|
||||
|
||||
/**
|
||||
* Deletes an existing calendar object.
|
||||
*
|
||||
* @param string $calendarId
|
||||
* @param string $objectUri
|
||||
* @return void
|
||||
*/
|
||||
public function deleteCalendarObject($calendarId,$objectUri)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Read-only CalDAV node wrappers for DB-owned calendars.
|
||||
*/
|
||||
class SabreDAVReadOnlyACLLib
|
||||
{
|
||||
public static function getAcl($principalUri, $includeFreeBusy = false)
|
||||
{
|
||||
$acl = array(
|
||||
array(
|
||||
'privilege' => '{DAV:}read',
|
||||
'principal' => $principalUri,
|
||||
'protected' => true,
|
||||
),
|
||||
array(
|
||||
'privilege' => '{DAV:}read',
|
||||
'principal' => $principalUri.'/calendar-proxy-read',
|
||||
'protected' => true,
|
||||
),
|
||||
);
|
||||
|
||||
if($includeFreeBusy)
|
||||
{
|
||||
$acl[] = array(
|
||||
'privilege' => '{'.\Sabre\CalDAV\Plugin::NS_CALDAV.'}read-free-busy',
|
||||
'principal' => '{DAV:}authenticated',
|
||||
'protected' => true,
|
||||
);
|
||||
}
|
||||
|
||||
return $acl;
|
||||
}
|
||||
|
||||
public static function ignoreWrite()
|
||||
{
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
class SabreDAVReadOnlyCalendarRootLib extends \Sabre\CalDAV\CalendarRoot
|
||||
{
|
||||
protected $readOnlyCaldavBackend;
|
||||
|
||||
public function __construct(\Sabre\DAVACL\PrincipalBackend\BackendInterface $principalBackend, \Sabre\CalDAV\Backend\BackendInterface $caldavBackend, $principalPrefix = 'principals')
|
||||
{
|
||||
parent::__construct($principalBackend, $caldavBackend, $principalPrefix);
|
||||
$this->readOnlyCaldavBackend = $caldavBackend;
|
||||
}
|
||||
|
||||
public function getChildForPrincipal(array $principal)
|
||||
{
|
||||
return new SabreDAVReadOnlyCalendarHomeLib($this->readOnlyCaldavBackend, $principal);
|
||||
}
|
||||
}
|
||||
|
||||
class SabreDAVReadOnlyCalendarHomeLib extends \Sabre\CalDAV\CalendarHome
|
||||
{
|
||||
protected $readOnlyCaldavBackend;
|
||||
protected $readOnlyPrincipalInfo;
|
||||
|
||||
public function __construct(\Sabre\CalDAV\Backend\BackendInterface $caldavBackend, $principalInfo)
|
||||
{
|
||||
parent::__construct($caldavBackend, $principalInfo);
|
||||
$this->readOnlyCaldavBackend = $caldavBackend;
|
||||
$this->readOnlyPrincipalInfo = $principalInfo;
|
||||
}
|
||||
|
||||
public function getChildren()
|
||||
{
|
||||
$calendars = $this->readOnlyCaldavBackend->getCalendarsForUser($this->readOnlyPrincipalInfo['uri']);
|
||||
$objs = array();
|
||||
|
||||
foreach($calendars as $calendar)
|
||||
{
|
||||
$objs[] = new SabreDAVReadOnlyCalendarLib($this->readOnlyCaldavBackend, $calendar);
|
||||
}
|
||||
|
||||
return $objs;
|
||||
}
|
||||
|
||||
public function createExtendedCollection($name, \Sabre\DAV\MkCol $mkCol)
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::ignoreWrite();
|
||||
}
|
||||
|
||||
public function createFile($filename, $data = null)
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::ignoreWrite();
|
||||
}
|
||||
|
||||
public function createDirectory($filename)
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::ignoreWrite();
|
||||
}
|
||||
|
||||
public function delete()
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::ignoreWrite();
|
||||
}
|
||||
|
||||
public function setName($name)
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::ignoreWrite();
|
||||
}
|
||||
|
||||
public function getACL()
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::getAcl($this->readOnlyPrincipalInfo['uri']);
|
||||
}
|
||||
}
|
||||
|
||||
class SabreDAVReadOnlyCalendarLib extends \Sabre\CalDAV\Calendar
|
||||
{
|
||||
protected $readOnlyCaldavBackend;
|
||||
protected $readOnlyCalendarInfo;
|
||||
|
||||
public function __construct(\Sabre\CalDAV\Backend\BackendInterface $caldavBackend, $calendarInfo)
|
||||
{
|
||||
parent::__construct($caldavBackend, $calendarInfo);
|
||||
$this->readOnlyCaldavBackend = $caldavBackend;
|
||||
$this->readOnlyCalendarInfo = $calendarInfo;
|
||||
}
|
||||
|
||||
public function getChild($name)
|
||||
{
|
||||
$obj = $this->readOnlyCaldavBackend->getCalendarObject($this->readOnlyCalendarInfo['id'], $name);
|
||||
|
||||
if(!$obj)
|
||||
throw new \Sabre\DAV\Exception\NotFound('Calendar object not found');
|
||||
|
||||
$obj['acl'] = $this->getCalendarObjectAcl();
|
||||
|
||||
return new SabreDAVReadOnlyCalendarObjectLib($this->readOnlyCaldavBackend, $this->readOnlyCalendarInfo, $obj);
|
||||
}
|
||||
|
||||
public function getChildren()
|
||||
{
|
||||
$objs = $this->readOnlyCaldavBackend->getCalendarObjects($this->readOnlyCalendarInfo['id']);
|
||||
$children = array();
|
||||
|
||||
foreach($objs as $obj)
|
||||
{
|
||||
$obj['acl'] = $this->getCalendarObjectAcl();
|
||||
$children[] = new SabreDAVReadOnlyCalendarObjectLib($this->readOnlyCaldavBackend, $this->readOnlyCalendarInfo, $obj);
|
||||
}
|
||||
|
||||
return $children;
|
||||
}
|
||||
|
||||
public function createFile($name, $calendarData = null)
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::ignoreWrite();
|
||||
}
|
||||
|
||||
public function createDirectory($name)
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::ignoreWrite();
|
||||
}
|
||||
|
||||
public function delete()
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::ignoreWrite();
|
||||
}
|
||||
|
||||
public function setName($newName)
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::ignoreWrite();
|
||||
}
|
||||
|
||||
public function updateProperties($mutations)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
||||
public function propPatch(\Sabre\DAV\PropPatch $propPatch)
|
||||
{
|
||||
$propPatch->setRemainingResultCode(200);
|
||||
}
|
||||
|
||||
public function getACL()
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::getAcl($this->getOwner(), true);
|
||||
}
|
||||
|
||||
protected function getCalendarObjectAcl()
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::getAcl($this->getOwner());
|
||||
}
|
||||
}
|
||||
|
||||
class SabreDAVReadOnlyCalendarObjectLib extends \Sabre\CalDAV\CalendarObject
|
||||
{
|
||||
protected $readOnlyCalendarInfo;
|
||||
|
||||
public function __construct(\Sabre\CalDAV\Backend\BackendInterface $caldavBackend, array $calendarInfo, array $objectData)
|
||||
{
|
||||
parent::__construct($caldavBackend, $calendarInfo, $objectData);
|
||||
$this->readOnlyCalendarInfo = $calendarInfo;
|
||||
}
|
||||
|
||||
public function put($calendarData)
|
||||
{
|
||||
return $this->getETag();
|
||||
}
|
||||
|
||||
public function getETag()
|
||||
{
|
||||
if(isset($_SERVER['REQUEST_METHOD']) && in_array($_SERVER['REQUEST_METHOD'], array('PUT', 'DELETE'), true))
|
||||
{
|
||||
$ifMatch = isset($_SERVER['HTTP_IF_MATCH']) ? trim($_SERVER['HTTP_IF_MATCH']) : '';
|
||||
if($ifMatch !== '' && $ifMatch !== '*')
|
||||
{
|
||||
$requestedEtags = explode(',', $ifMatch);
|
||||
foreach($requestedEtags as $requestedEtag)
|
||||
{
|
||||
$requestedEtag = trim($requestedEtag);
|
||||
if($requestedEtag !== '')
|
||||
return $requestedEtag;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return parent::getETag();
|
||||
}
|
||||
|
||||
public function delete()
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::ignoreWrite();
|
||||
}
|
||||
|
||||
public function setName($name)
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::ignoreWrite();
|
||||
}
|
||||
|
||||
public function getACL()
|
||||
{
|
||||
return SabreDAVReadOnlyACLLib::getAcl($this->readOnlyCalendarInfo['principaluri']);
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,179 @@
|
||||
<?php
|
||||
|
||||
/**
|
||||
* PDO principal backend
|
||||
*
|
||||
* This is a simple principal backend that maps exactly to the users table, as
|
||||
* used by Sabre_DAV_Auth_Backend_PDO.
|
||||
*
|
||||
* It assumes all principals are in a single collection. The default collection
|
||||
* is 'principals/', but this can be overriden.
|
||||
*
|
||||
* @package Sabre
|
||||
* @subpackage DAVACL
|
||||
* @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
|
||||
* @author Evert Pot (http://www.rooftopsolutions.nl/)
|
||||
* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
|
||||
*/
|
||||
class SabreDAVACLPrincipalBackend implements \Sabre\DAVACL\PrincipalBackend\BackendInterface
|
||||
{
|
||||
/**
|
||||
* PDO table name for 'principals'
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $tableName;
|
||||
|
||||
/**
|
||||
* PDO table name for 'group members'
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $groupMembersTableName;
|
||||
|
||||
protected $result_ma;
|
||||
protected $auth;
|
||||
/**
|
||||
* Sets up the backend.
|
||||
*
|
||||
* @param PDO $pdo
|
||||
* @param string $tableName
|
||||
*/
|
||||
public function __construct($auth)
|
||||
{
|
||||
$this->auth = $auth;
|
||||
|
||||
/*
|
||||
$ma = new mitarbeiter();
|
||||
$this->result_ma = $ma->getMitarbeiter(null,null,null);
|
||||
*/
|
||||
}
|
||||
|
||||
/**
|
||||
* Liefert den eingeloggten User
|
||||
*/
|
||||
function getUser()
|
||||
{
|
||||
return $this->auth->getCurrentUser();
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Returns a list of principals based on a prefix.
|
||||
*
|
||||
* This prefix will often contain something like 'principals'. You are only
|
||||
* expected to return principals that are in this base path.
|
||||
*
|
||||
* You are expected to return at least a 'uri' for every user, you can
|
||||
* return any additional properties if you wish so. Common properties are:
|
||||
* {DAV:}displayname
|
||||
* {http://sabredav.org/ns}email-address - This is a custom SabreDAV
|
||||
* field that's actualy injected in a number of other properties. If
|
||||
* you have an email address, use this property.
|
||||
*
|
||||
* @param string $prefixPath
|
||||
* @return array
|
||||
*/
|
||||
public function getPrincipalsByPrefix($prefixPath)
|
||||
{
|
||||
//$prefixPath = principals
|
||||
//error_log('Principal.php/getPrincipalsByPrefix('.$prefixPath.')');
|
||||
$principals = array();
|
||||
$user = $this->getUser();
|
||||
|
||||
if($prefixPath=='principals')
|
||||
{
|
||||
|
||||
$principals[] = array(
|
||||
'id' => $user,
|
||||
'uri' => 'principals/'.$user,
|
||||
'{DAV:}displayname' => $user,
|
||||
'{http://sabredav.org/ns}email-address' => $user.'@example.com',
|
||||
);
|
||||
}
|
||||
|
||||
return $principals;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a specific principal, specified by it's path.
|
||||
* The returned structure should be the exact same as from
|
||||
* getPrincipalsByPrefix.
|
||||
*
|
||||
* @param string $path
|
||||
* @return array
|
||||
*/
|
||||
public function getPrincipalByPath($path)
|
||||
{
|
||||
$user = mb_substr($path,11);
|
||||
|
||||
$result = array(
|
||||
'id' => $user,
|
||||
'uri' => 'principals/'.$user,
|
||||
'{DAV:}displayname' => $user,
|
||||
'{http://sabredav.org/ns}email-address' => $user.'@example.com',
|
||||
);
|
||||
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the list of members for a group-principal
|
||||
*
|
||||
* @param string $principal
|
||||
* @return array
|
||||
*/
|
||||
public function getGroupMemberSet($principal)
|
||||
{
|
||||
$result = array();
|
||||
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the list of groups a principal is a member of
|
||||
*
|
||||
* @param string $principal
|
||||
* @return array
|
||||
*/
|
||||
public function getGroupMembership($principal)
|
||||
{
|
||||
$result = array();
|
||||
if(preg_match('/^principals\/[0-9A-Za-z\-]*$/',$principal))
|
||||
{
|
||||
$user = mb_substr($principal,11);
|
||||
}
|
||||
return $result;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Updates the list of group members for a group principal.
|
||||
*
|
||||
* The principals should be passed as a list of uri's.
|
||||
*
|
||||
* @param string $principal
|
||||
* @param array $members
|
||||
* @return void
|
||||
*/
|
||||
public function setGroupMemberSet($principal, array $members)
|
||||
{
|
||||
throw new \Sabre\DAV\Exception('Not implemented');
|
||||
}
|
||||
|
||||
public function updatePrincipal($path, \Sabre\DAV\PropPatch $propPatch)
|
||||
{
|
||||
$propPatch->setRemainingResultCode(403);
|
||||
}
|
||||
|
||||
public function searchPrincipals($prefixPath, array $searchProperties, $test = 'allof')
|
||||
{
|
||||
return array();
|
||||
}
|
||||
|
||||
public function findByUri($uri, $principalPrefix)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,546 @@
|
||||
<?php
|
||||
|
||||
/**
|
||||
* CalDAV backend
|
||||
*/
|
||||
class SabreDAVCalDAVBackend extends \Sabre\CalDAV\Backend\AbstractBackend
|
||||
{
|
||||
protected $auth;
|
||||
|
||||
protected $CI;
|
||||
|
||||
/**
|
||||
* Creates the backend
|
||||
*
|
||||
* @param AuthBackend $auth
|
||||
*/
|
||||
public function __construct($auth)
|
||||
{
|
||||
$this->auth = $auth;
|
||||
|
||||
$this->CI =& get_instance();
|
||||
}
|
||||
|
||||
/**
|
||||
* Liefert den eingeloggten User
|
||||
*/
|
||||
function getUser()
|
||||
{
|
||||
return $this->auth->getCurrentUser();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a list of calendars for a principal.
|
||||
*
|
||||
* Every project is an array with the following keys:
|
||||
* * id, a unique id that will be used by other functions to modify the
|
||||
* calendar. This can be the same as the uri or a database key.
|
||||
* * uri, which the basename of the uri with which the calendar is
|
||||
* accessed.
|
||||
* * principalUri. The owner of the calendar. Almost always the same as
|
||||
* principalUri passed to this method.
|
||||
*
|
||||
* Furthermore it can contain webdav properties in clark notation. A very
|
||||
* common one is '{DAV:}displayname'.
|
||||
*
|
||||
* @param string $principalUri
|
||||
* @return array
|
||||
*/
|
||||
public function getCalendarsForUser($principalUri)
|
||||
{
|
||||
$user = mb_substr($principalUri,11);
|
||||
$calendars = array();
|
||||
$calendar = array(
|
||||
'id' => $user,
|
||||
'uri' => 'LVPlan-'.$user,
|
||||
'principaluri' => 'principals/'.$user,
|
||||
'{' . \Sabre\CalDAV\Plugin::NS_CALENDARSERVER . '}getctag' => $this->buildCalendarCtag($user),
|
||||
'{' . \Sabre\CalDAV\Plugin::NS_CALDAV . '}supported-calendar-component-set' => new \Sabre\CalDAV\Xml\Property\SupportedCalendarComponentSet(array('VEVENT')),
|
||||
'{DAV:}displayname' => 'LVPlan',
|
||||
'{urn:ietf:params:xml:ns:caldav}calendar-description' => 'description comes here',
|
||||
'{urn:ietf:params:xml:ns:caldav}calendar-timezone' => 'Europe/Vienna',
|
||||
'{http://apple.com/ns/ical/}calendar-order' => '1',
|
||||
'{http://apple.com/ns/ical/}calendar-color' => '#FF0000',
|
||||
'{http://sabredav.org/ns}read-only' => 1
|
||||
);
|
||||
$calendars[] = $calendar;
|
||||
|
||||
return $calendars;
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a new calendar for a principal.
|
||||
*
|
||||
* If the creation was a success, an id must be returned that can be used to reference
|
||||
* this calendar in other methods, such as updateCalendar
|
||||
*
|
||||
* @param string $principalUri
|
||||
* @param string $calendarUri
|
||||
* @param array $properties
|
||||
*/
|
||||
public function createCalendar($principalUri,$calendarUri, array $properties)
|
||||
{
|
||||
return $calendarUri;
|
||||
}
|
||||
|
||||
/**
|
||||
* Updates properties for a calendar.
|
||||
*
|
||||
* The mutations array uses the propertyName in clark-notation as key,
|
||||
* and the array value for the property value. In the case a property
|
||||
* should be deleted, the property value will be null.
|
||||
*
|
||||
* This method must be atomic. If one property cannot be changed, the
|
||||
* entire operation must fail.
|
||||
*
|
||||
* If the operation was successful, true can be returned.
|
||||
* If the operation failed, false can be returned.
|
||||
*
|
||||
* Deletion of a non-existant property is always succesful.
|
||||
*
|
||||
* Lastly, it is optional to return detailed information about any
|
||||
* failures. In this case an array should be returned with the following
|
||||
* structure:
|
||||
*
|
||||
* array(
|
||||
* 403 => array(
|
||||
* '{DAV:}displayname' => null,
|
||||
* ),
|
||||
* 424 => array(
|
||||
* '{DAV:}owner' => null,
|
||||
* )
|
||||
* )
|
||||
*
|
||||
* In this example it was forbidden to update {DAV:}displayname.
|
||||
* (403 Forbidden), which in turn also caused {DAV:}owner to fail
|
||||
* (424 Failed Dependency) because the request needs to be atomic.
|
||||
*
|
||||
* @param string $calendarId
|
||||
* @param array $mutations
|
||||
* @return bool|array
|
||||
*/
|
||||
public function updateCalendar($calendarId, \Sabre\DAV\PropPatch $propPatch)
|
||||
{
|
||||
$propPatch->setRemainingResultCode(200);
|
||||
}
|
||||
|
||||
/**
|
||||
* Delete a calendar and all it's objects
|
||||
*
|
||||
* @param string $calendarId
|
||||
* @return void
|
||||
*/
|
||||
public function deleteCalendar($calendarId)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
|
||||
|
||||
public function getCalendarData($userUID, $objectUri=null)
|
||||
{
|
||||
$this->CI->load->model("ressource/Mitarbeiter_model", "MitarbeiterModel");
|
||||
$this->CI->load->model("person/Benutzer_model", "BenutzerModel");
|
||||
|
||||
$user = $this->CI->BenutzerModel->loadWhere(array("uid" => $userUID));
|
||||
if(!$user)
|
||||
die('User invalid');
|
||||
|
||||
$this->CI->load->library('KalenderLib', ['uid' => $userUID]);
|
||||
|
||||
$isUserEmployeeResult = $this->CI->MitarbeiterModel->isMitarbeiter($userUID);
|
||||
if (isError($isUserEmployeeResult)) {
|
||||
return;
|
||||
}
|
||||
$isUserEmployee = getData($isUserEmployeeResult);
|
||||
|
||||
$startDate = date('Y-m-d', mktime(0,0,0,date('m'),date('d')-14,date('Y')));
|
||||
$endDate = date('Y-m-d', mktime(0,0,0,date('m')+6,date('d'),date('Y')));
|
||||
|
||||
$data = [];
|
||||
|
||||
if ($isUserEmployee) {
|
||||
$data = $this->CI->kalenderlib->getPlanForLecturerByLecturer($startDate, $endDate, $userUID);
|
||||
} else {
|
||||
$data = $this->CI->kalenderlib->getPlanForStudentByStudent($startDate, $endDate, $userUID);
|
||||
}
|
||||
|
||||
if(!is_array($data))
|
||||
$data = array();
|
||||
|
||||
foreach($data as $item)
|
||||
{
|
||||
$item->calendarDataFragment = $this->buildCalendarDataFragment($item);
|
||||
}
|
||||
|
||||
if (is_null($objectUri))
|
||||
{
|
||||
return $data;
|
||||
}
|
||||
|
||||
$normalizedObjectUri = $this->normalizeObjectUri($objectUri);
|
||||
foreach($data as $row)
|
||||
{
|
||||
if(md5($row->eindeutige_gruppen_id) == $normalizedObjectUri)
|
||||
{
|
||||
return $row;
|
||||
}
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
public function makeCal($event)
|
||||
{
|
||||
return $this->buildICalLine('BEGIN', 'VCALENDAR')
|
||||
.$this->buildICalLine('VERSION', '2.0')
|
||||
.$this->buildICalTextLine('PRODID', 'FH Technikum Wien')
|
||||
.$this->buildICalLine('BEGIN', 'VTIMEZONE')
|
||||
.$this->buildICalLine('TZID', 'Europe/Vienna')
|
||||
.$this->buildICalLine('BEGIN', 'DAYLIGHT')
|
||||
.$this->buildICalLine('TZOFFSETFROM', '+0100')
|
||||
.$this->buildICalLine('RRULE', 'FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU')
|
||||
.$this->buildICalLine('DTSTART', '19810329T020000')
|
||||
.$this->buildICalLine('TZNAME', 'GMT+02:00')
|
||||
.$this->buildICalLine('TZOFFSETTO', '+0200')
|
||||
.$this->buildICalLine('END', 'DAYLIGHT')
|
||||
.$this->buildICalLine('BEGIN', 'STANDARD')
|
||||
.$this->buildICalLine('TZOFFSETFROM', '+0200')
|
||||
.$this->buildICalLine('RRULE', 'FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU')
|
||||
.$this->buildICalLine('DTSTART', '19961027T030000')
|
||||
.$this->buildICalLine('TZNAME', 'GMT+01:00')
|
||||
.$this->buildICalLine('TZOFFSETTO', '+0100')
|
||||
.$this->buildICalLine('END', 'STANDARD')
|
||||
.$this->buildICalLine('END', 'VTIMEZONE')
|
||||
.$event
|
||||
.$this->buildICalLine('END', 'VCALENDAR');
|
||||
}
|
||||
|
||||
protected function buildCalendarDataFragment($item)
|
||||
{
|
||||
$summary = $item->type == 'reservierung' ? $item->titel : $item->topic;
|
||||
|
||||
$description = "";
|
||||
if ($item->type == 'reservierung') {
|
||||
$description = $item->beschreibung;
|
||||
} else {
|
||||
$description = $item->lehrfach_bez . "\r\n";
|
||||
|
||||
if (isset($item->lektor) && is_array($item->lektor) && count($item->lektor) > 0) {
|
||||
$description .= "Lehrer: " . join(", ", array_map(function($teacher) { return $teacher["kurzbz"]; }, $item->lektor)) . "\r\n";
|
||||
}
|
||||
}
|
||||
|
||||
$parsedStartDate = $this->formatICalLocalDateTime($item->isostart);
|
||||
$parsedEndDate = $this->formatICalLocalDateTime($item->isoend);
|
||||
$lastModified = $this->formatICalUtcDateTime(isset($item->updateamum) ? $item->updateamum : null);
|
||||
$dtStamp = $lastModified ?: $this->formatICalUtcDateTime($item->isostart);
|
||||
|
||||
if($dtStamp === null)
|
||||
$dtStamp = '19700101T000000Z';
|
||||
|
||||
$fragment = $this->buildICalLine('BEGIN', 'VEVENT')
|
||||
.$this->buildICalTextLine('UID', $item->eindeutige_gruppen_id)
|
||||
.$this->buildICalLine('SEQUENCE', (int)$item->kalender_id)
|
||||
.$this->buildICalTextLine('SUMMARY', $summary)
|
||||
.$this->buildICalTextLine('DESCRIPTION', $description)
|
||||
.$this->buildICalTextLine('LOCATION', isset($item->ort_kurzbz) ? $item->ort_kurzbz : '')
|
||||
.$this->buildICalTextLine('CATEGORIES', 'Stundenplans')
|
||||
.$this->buildICalLine('DTSTART', $parsedStartDate, array('TZID' => 'Europe/Vienna'))
|
||||
.$this->buildICalLine('DTEND', $parsedEndDate, array('TZID' => 'Europe/Vienna'));
|
||||
|
||||
if($lastModified !== null)
|
||||
$fragment .= $this->buildICalLine('LAST-MODIFIED', $lastModified);
|
||||
|
||||
return $fragment
|
||||
.$this->buildICalLine('DTSTAMP', $dtStamp)
|
||||
.$this->buildICalLine('END', 'VEVENT');
|
||||
}
|
||||
|
||||
protected function buildCalendarCtag($userUID)
|
||||
{
|
||||
$data = $this->getCalendarData($userUID);
|
||||
if(!is_array($data))
|
||||
$data = array();
|
||||
|
||||
$fragments = array();
|
||||
foreach($data as $row)
|
||||
{
|
||||
$lastModified = isset($row->updateamum) ? $this->getLastModifiedTimestamp($row->updateamum) : null;
|
||||
$calendarData = isset($row->calendarDataFragment) ? $this->makeCal($row->calendarDataFragment) : '';
|
||||
$fragments[] = $this->getObjectUri($row).':'.$lastModified.':'.md5($calendarData);
|
||||
}
|
||||
|
||||
sort($fragments, SORT_STRING);
|
||||
return 'LVPlan-'.$userUID.'-'.md5(implode('|', $fragments));
|
||||
}
|
||||
|
||||
protected function buildICalTextLine($name, $value, array $parameters = array())
|
||||
{
|
||||
return $this->buildICalLine($name, $this->escapeICalText($value), $parameters);
|
||||
}
|
||||
|
||||
protected function buildICalLine($name, $value, array $parameters = array())
|
||||
{
|
||||
$line = strtoupper($name);
|
||||
|
||||
foreach($parameters as $parameterName => $parameterValue)
|
||||
{
|
||||
$parameterValues = is_array($parameterValue) ? $parameterValue : array($parameterValue);
|
||||
$escapedValues = array();
|
||||
|
||||
foreach($parameterValues as $singleParameterValue)
|
||||
$escapedValues[] = $this->escapeICalParameterValue($singleParameterValue);
|
||||
|
||||
$line .= ';'.strtoupper($parameterName).'='.implode(',', $escapedValues);
|
||||
}
|
||||
|
||||
return $this->foldICalLine($line.':'.(string)$value);
|
||||
}
|
||||
|
||||
protected function foldICalLine($line)
|
||||
{
|
||||
$line = (string)$line;
|
||||
$folded = '';
|
||||
|
||||
while(strlen($line) > 75)
|
||||
{
|
||||
$part = mb_strcut($line, 0, 75, 'UTF-8');
|
||||
$folded .= $part."\r\n";
|
||||
$line = ' '.mb_strcut($line, strlen($part), strlen($line) - strlen($part), 'UTF-8');
|
||||
}
|
||||
|
||||
return $folded.$line."\r\n";
|
||||
}
|
||||
|
||||
protected function escapeICalText($value)
|
||||
{
|
||||
$value = (string)$value;
|
||||
$value = str_replace('\\', '\\\\', $value);
|
||||
$value = str_replace(array("\r\n", "\r", "\n"), '\n', $value);
|
||||
return str_replace(array(';', ','), array('\;', '\,'), $value);
|
||||
}
|
||||
|
||||
protected function escapeICalParameterValue($value)
|
||||
{
|
||||
$value = (string)$value;
|
||||
$value = str_replace(array('\\', '"', "\r", "\n"), array('\\\\', '\"', '', ''), $value);
|
||||
|
||||
if(preg_match('/[;:,]/', $value))
|
||||
return '"'.$value.'"';
|
||||
|
||||
return $value;
|
||||
}
|
||||
|
||||
protected function formatICalLocalDateTime($dateTime)
|
||||
{
|
||||
$dateTime = $this->createDateTime($dateTime);
|
||||
if($dateTime === null)
|
||||
return null;
|
||||
|
||||
$dateTime->setTimezone(new DateTimeZone('Europe/Vienna'));
|
||||
return $dateTime->format('Ymd\THis');
|
||||
}
|
||||
|
||||
protected function formatICalUtcDateTime($dateTime)
|
||||
{
|
||||
$dateTime = $this->createDateTime($dateTime);
|
||||
if($dateTime === null)
|
||||
return null;
|
||||
|
||||
$dateTime->setTimezone(new DateTimeZone('UTC'));
|
||||
return $dateTime->format('Ymd\THis\Z');
|
||||
}
|
||||
|
||||
protected function createDateTime($dateTime)
|
||||
{
|
||||
if($dateTime instanceof DateTime)
|
||||
return clone $dateTime;
|
||||
|
||||
if($dateTime === null || $dateTime === '')
|
||||
return null;
|
||||
|
||||
try
|
||||
{
|
||||
if(is_numeric($dateTime))
|
||||
return new DateTime('@'.(int)$dateTime);
|
||||
|
||||
return new DateTime($dateTime);
|
||||
}
|
||||
catch(Exception $e)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
protected function getObjectUri($row)
|
||||
{
|
||||
return md5($row->eindeutige_gruppen_id).'.ics';
|
||||
}
|
||||
|
||||
protected function normalizeObjectUri($objectUri)
|
||||
{
|
||||
$normalizedObjectUri = (string)$objectUri;
|
||||
|
||||
if(substr($normalizedObjectUri, -4) === '.ics')
|
||||
$normalizedObjectUri = substr($normalizedObjectUri, 0, -4);
|
||||
|
||||
if(mb_strpos($normalizedObjectUri, '@') !== false)
|
||||
$normalizedObjectUri = mb_substr($normalizedObjectUri, mb_strpos($normalizedObjectUri, '@') + 1);
|
||||
|
||||
if($this->hasObjectUriDatePrefix($normalizedObjectUri))
|
||||
return mb_substr($normalizedObjectUri, mb_strpos($normalizedObjectUri, '-') + 1);
|
||||
|
||||
return $normalizedObjectUri;
|
||||
}
|
||||
|
||||
protected function hasObjectUriDatePrefix($objectUri)
|
||||
{
|
||||
$hyphenPosition = mb_strpos($objectUri, '-');
|
||||
if($hyphenPosition !== 15)
|
||||
return false;
|
||||
|
||||
return preg_match('/^\d{8}T\d{6}$/', mb_substr($objectUri, 0, 15)) === 1;
|
||||
}
|
||||
|
||||
protected function buildCalendarObject($row, $calendarId)
|
||||
{
|
||||
$calendarData = $this->makeCal($row->calendarDataFragment);
|
||||
|
||||
return array(
|
||||
"id"=>$row->eindeutige_gruppen_id,
|
||||
"calendardata"=>$calendarData,
|
||||
"uri"=>$this->getObjectUri($row),
|
||||
"lastmodified"=>$this->getLastModifiedTimestamp($row->updateamum),
|
||||
"etag"=>'"'.md5($calendarData).'"',
|
||||
"calendarid"=>$calendarId,
|
||||
"size"=>strlen($calendarData),
|
||||
"component"=>'vevent'
|
||||
);
|
||||
}
|
||||
|
||||
protected function getLastModifiedTimestamp($lastModified)
|
||||
{
|
||||
if($lastModified === null || $lastModified === '')
|
||||
return null;
|
||||
|
||||
if(is_numeric($lastModified))
|
||||
return (int)$lastModified;
|
||||
|
||||
$timestamp = strtotime($lastModified);
|
||||
if($timestamp === false)
|
||||
return null;
|
||||
|
||||
return $timestamp;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns all calendar objects within a calendar.
|
||||
*
|
||||
* Every item contains an array with the following keys:
|
||||
* * id - unique identifier which will be used for subsequent updates
|
||||
* * calendardata - The iCalendar-compatible calnedar data
|
||||
* * uri - a unique key which will be used to construct the uri. This can be any arbitrary string.
|
||||
* * lastmodified - a timestamp of the last modification time
|
||||
* * etag - An arbitrary string, surrounded by double-quotes. (e.g.:
|
||||
* ' "abcdef"')
|
||||
* * calendarid - The calendarid as it was passed to this function.
|
||||
*
|
||||
* Note that the etag is optional, but it's highly encouraged to return for
|
||||
* speed reasons.
|
||||
*
|
||||
* The calendardata is also optional. If it's not returned
|
||||
* 'getCalendarObject' will be called later, which *is* expected to return
|
||||
* calendardata.
|
||||
*
|
||||
* @param string $calendarId
|
||||
* @return array
|
||||
*/
|
||||
public function getCalendarObjects($calendarId)
|
||||
{
|
||||
//$user = $this->getUser();
|
||||
$user = $calendarId;
|
||||
$data = $this->getCalendarData($user);
|
||||
|
||||
//error_log("Caldav_Backend.php/getCalendarObjects($calendarId) ");
|
||||
$return = array();
|
||||
|
||||
if(!is_array($data))
|
||||
return $return;
|
||||
|
||||
foreach($data as $row)
|
||||
{
|
||||
$return[] = $this->buildCalendarObject($row, $calendarId);
|
||||
}
|
||||
return $return;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns information from a single calendar object, based on it's object
|
||||
* uri.
|
||||
*
|
||||
* The returned array must have the same keys as getCalendarObjects. The
|
||||
* 'calendardata' object is required here though, while it's not required
|
||||
* for getCalendarObjects.
|
||||
*
|
||||
* @param string $calendarId
|
||||
* @param string $objectUri
|
||||
* @return array
|
||||
*/
|
||||
public function getCalendarObject($calendarId,$objectUri)
|
||||
{
|
||||
$user = $calendarId;
|
||||
$data = $this->getCalendarData($user,$objectUri);
|
||||
|
||||
if(empty($data))
|
||||
{
|
||||
return null;
|
||||
}
|
||||
elseif(is_object($data))
|
||||
{
|
||||
$ret = $this->buildCalendarObject($data, $calendarId);
|
||||
}
|
||||
|
||||
return isset($ret) ? $ret : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a new calendar object.
|
||||
*
|
||||
* @param string $calendarId
|
||||
* @param string $objectUri
|
||||
* @param string $calendarData
|
||||
* @return void
|
||||
*/
|
||||
public function createCalendarObject($calendarId,$objectUri,$calendarData)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Updates an existing calendarobject, based on it's uri.
|
||||
*
|
||||
* @param string $calendarId
|
||||
* @param string $objectUri
|
||||
* @param string $calendarData
|
||||
* @return void
|
||||
*/
|
||||
public function updateCalendarObject($calendarId,$objectUri,$calendarData)
|
||||
{
|
||||
if(is_resource($calendarData))
|
||||
$calendarData = stream_get_contents($calendarData);
|
||||
|
||||
return '"'.md5((string)$calendarData).'"';
|
||||
}
|
||||
|
||||
/**
|
||||
* Deletes an existing calendar object.
|
||||
*
|
||||
* @param string $calendarId
|
||||
* @param string $objectUri
|
||||
* @return void
|
||||
*/
|
||||
public function deleteCalendarObject($calendarId,$objectUri)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,36 @@
|
||||
<?php
|
||||
|
||||
class SabreDAVReadOnlyACL
|
||||
{
|
||||
public static function getAcl($principalUri, $includeFreeBusy = false)
|
||||
{
|
||||
$acl = array(
|
||||
array(
|
||||
'privilege' => '{DAV:}read',
|
||||
'principal' => $principalUri,
|
||||
'protected' => true,
|
||||
),
|
||||
array(
|
||||
'privilege' => '{DAV:}read',
|
||||
'principal' => $principalUri.'/calendar-proxy-read',
|
||||
'protected' => true,
|
||||
),
|
||||
);
|
||||
|
||||
if($includeFreeBusy)
|
||||
{
|
||||
$acl[] = array(
|
||||
'privilege' => '{'.\Sabre\CalDAV\Plugin::NS_CALDAV.'}read-free-busy',
|
||||
'principal' => '{DAV:}authenticated',
|
||||
'protected' => true,
|
||||
);
|
||||
}
|
||||
|
||||
return $acl;
|
||||
}
|
||||
|
||||
public static function ignoreWrite()
|
||||
{
|
||||
return null;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,80 @@
|
||||
<?php
|
||||
|
||||
class SabreDAVReadOnlyCalendar extends \Sabre\CalDAV\Calendar
|
||||
{
|
||||
protected $readOnlyCaldavBackend;
|
||||
protected $readOnlyCalendarInfo;
|
||||
|
||||
public function __construct(\Sabre\CalDAV\Backend\BackendInterface $caldavBackend, $calendarInfo)
|
||||
{
|
||||
parent::__construct($caldavBackend, $calendarInfo);
|
||||
$this->readOnlyCaldavBackend = $caldavBackend;
|
||||
$this->readOnlyCalendarInfo = $calendarInfo;
|
||||
}
|
||||
|
||||
public function getChild($name)
|
||||
{
|
||||
$obj = $this->readOnlyCaldavBackend->getCalendarObject($this->readOnlyCalendarInfo['id'], $name);
|
||||
|
||||
if(!$obj)
|
||||
throw new \Sabre\DAV\Exception\NotFound('Calendar object not found');
|
||||
|
||||
$obj['acl'] = $this->getCalendarObjectAcl();
|
||||
|
||||
return new SabreDAVReadOnlyCalendarObject($this->readOnlyCaldavBackend, $this->readOnlyCalendarInfo, $obj);
|
||||
}
|
||||
|
||||
public function getChildren()
|
||||
{
|
||||
$objs = $this->readOnlyCaldavBackend->getCalendarObjects($this->readOnlyCalendarInfo['id']);
|
||||
$children = array();
|
||||
|
||||
foreach($objs as $obj)
|
||||
{
|
||||
$obj['acl'] = $this->getCalendarObjectAcl();
|
||||
$children[] = new SabreDAVReadOnlyCalendarObject($this->readOnlyCaldavBackend, $this->readOnlyCalendarInfo, $obj);
|
||||
}
|
||||
|
||||
return $children;
|
||||
}
|
||||
|
||||
public function createFile($name, $calendarData = null)
|
||||
{
|
||||
return SabreDAVReadOnlyACL::ignoreWrite();
|
||||
}
|
||||
|
||||
public function createDirectory($name)
|
||||
{
|
||||
return SabreDAVReadOnlyACL::ignoreWrite();
|
||||
}
|
||||
|
||||
public function delete()
|
||||
{
|
||||
return SabreDAVReadOnlyACL::ignoreWrite();
|
||||
}
|
||||
|
||||
public function setName($newName)
|
||||
{
|
||||
return SabreDAVReadOnlyACL::ignoreWrite();
|
||||
}
|
||||
|
||||
public function updateProperties($mutations)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
||||
public function propPatch(\Sabre\DAV\PropPatch $propPatch)
|
||||
{
|
||||
$propPatch->setRemainingResultCode(200);
|
||||
}
|
||||
|
||||
public function getACL()
|
||||
{
|
||||
return SabreDAVReadOnlyACL::getAcl($this->getOwner(), true);
|
||||
}
|
||||
|
||||
protected function getCalendarObjectAcl()
|
||||
{
|
||||
return SabreDAVReadOnlyACL::getAcl($this->getOwner());
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,57 @@
|
||||
<?php
|
||||
|
||||
class SabreDAVReadOnlyCalendarHome extends \Sabre\CalDAV\CalendarHome
|
||||
{
|
||||
protected $readOnlyCaldavBackend;
|
||||
protected $readOnlyPrincipalInfo;
|
||||
|
||||
public function __construct(\Sabre\CalDAV\Backend\BackendInterface $caldavBackend, $principalInfo)
|
||||
{
|
||||
parent::__construct($caldavBackend, $principalInfo);
|
||||
$this->readOnlyCaldavBackend = $caldavBackend;
|
||||
$this->readOnlyPrincipalInfo = $principalInfo;
|
||||
}
|
||||
|
||||
public function getChildren()
|
||||
{
|
||||
$calendars = $this->readOnlyCaldavBackend->getCalendarsForUser($this->readOnlyPrincipalInfo['uri']);
|
||||
$objs = array();
|
||||
|
||||
foreach($calendars as $calendar)
|
||||
{
|
||||
$objs[] = new SabreDAVReadOnlyCalendar($this->readOnlyCaldavBackend, $calendar);
|
||||
}
|
||||
|
||||
return $objs;
|
||||
}
|
||||
|
||||
public function createExtendedCollection($name, \Sabre\DAV\MkCol $mkCol)
|
||||
{
|
||||
return SabreDAVReadOnlyACL::ignoreWrite();
|
||||
}
|
||||
|
||||
public function createFile($filename, $data = null)
|
||||
{
|
||||
return SabreDAVReadOnlyACL::ignoreWrite();
|
||||
}
|
||||
|
||||
public function createDirectory($filename)
|
||||
{
|
||||
return SabreDAVReadOnlyACL::ignoreWrite();
|
||||
}
|
||||
|
||||
public function delete()
|
||||
{
|
||||
return SabreDAVReadOnlyACL::ignoreWrite();
|
||||
}
|
||||
|
||||
public function setName($name)
|
||||
{
|
||||
return SabreDAVReadOnlyACL::ignoreWrite();
|
||||
}
|
||||
|
||||
public function getACL()
|
||||
{
|
||||
return SabreDAVReadOnlyACL::getAcl($this->readOnlyPrincipalInfo['uri']);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,84 @@
|
||||
<?php
|
||||
|
||||
class SabreDAVReadOnlyCalendarObject extends \Sabre\CalDAV\CalendarObject
|
||||
{
|
||||
protected $readOnlyCalendarInfo;
|
||||
|
||||
public function __construct(\Sabre\CalDAV\Backend\BackendInterface $caldavBackend, array $calendarInfo, array $objectData)
|
||||
{
|
||||
parent::__construct($caldavBackend, $calendarInfo, $objectData);
|
||||
$this->readOnlyCalendarInfo = $calendarInfo;
|
||||
}
|
||||
|
||||
public function put($calendarData)
|
||||
{
|
||||
return $this->getCurrentETag();
|
||||
}
|
||||
|
||||
public function getETag()
|
||||
{
|
||||
if($this->isWriteRequest())
|
||||
{
|
||||
$ifMatch = isset($_SERVER['HTTP_IF_MATCH']) ? trim($_SERVER['HTTP_IF_MATCH']) : '';
|
||||
if($ifMatch !== '' && $ifMatch !== '*')
|
||||
{
|
||||
$requestedEtags = explode(',', $ifMatch);
|
||||
foreach($requestedEtags as $requestedEtag)
|
||||
{
|
||||
$requestedEtag = trim($requestedEtag);
|
||||
if($requestedEtag !== '')
|
||||
return $requestedEtag;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return parent::getETag();
|
||||
}
|
||||
|
||||
public function getLastModified()
|
||||
{
|
||||
if($this->isWriteRequest())
|
||||
{
|
||||
$ifUnmodifiedSince = isset($_SERVER['HTTP_IF_UNMODIFIED_SINCE']) ? trim($_SERVER['HTTP_IF_UNMODIFIED_SINCE']) : '';
|
||||
if($ifUnmodifiedSince !== '')
|
||||
{
|
||||
$timestamp = strtotime($ifUnmodifiedSince);
|
||||
if($timestamp !== false)
|
||||
return max(0, $timestamp - 1);
|
||||
}
|
||||
}
|
||||
|
||||
return parent::getLastModified();
|
||||
}
|
||||
|
||||
public function delete()
|
||||
{
|
||||
return SabreDAVReadOnlyACL::ignoreWrite();
|
||||
}
|
||||
|
||||
public function setName($name)
|
||||
{
|
||||
return SabreDAVReadOnlyACL::ignoreWrite();
|
||||
}
|
||||
|
||||
public function getACL()
|
||||
{
|
||||
return SabreDAVReadOnlyACL::getAcl($this->readOnlyCalendarInfo['principaluri']);
|
||||
}
|
||||
|
||||
protected function isWriteRequest()
|
||||
{
|
||||
if(!isset($_SERVER['REQUEST_METHOD']))
|
||||
return false;
|
||||
|
||||
return in_array(strtoupper($_SERVER['REQUEST_METHOD']), array('PUT', 'DELETE', 'PROPPATCH', 'MOVE', 'COPY', 'PATCH'), true);
|
||||
}
|
||||
|
||||
protected function getCurrentETag()
|
||||
{
|
||||
if(isset($this->objectData['etag']) && $this->objectData['etag'] !== '')
|
||||
return $this->objectData['etag'];
|
||||
|
||||
return parent::getETag();
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,17 @@
|
||||
<?php
|
||||
|
||||
class SabreDAVReadOnlyCalendarRoot extends \Sabre\CalDAV\CalendarRoot
|
||||
{
|
||||
protected $readOnlyCaldavBackend;
|
||||
|
||||
public function __construct(\Sabre\DAVACL\PrincipalBackend\BackendInterface $principalBackend, \Sabre\CalDAV\Backend\BackendInterface $caldavBackend, $principalPrefix = 'principals')
|
||||
{
|
||||
parent::__construct($principalBackend, $caldavBackend, $principalPrefix);
|
||||
$this->readOnlyCaldavBackend = $caldavBackend;
|
||||
}
|
||||
|
||||
public function getChildForPrincipal(array $principal)
|
||||
{
|
||||
return new SabreDAVReadOnlyCalendarHome($this->readOnlyCaldavBackend, $principal);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user