Version 3.2.3

upload/ips_kernel/sabre/Sabre/CalDAV/Calendar.php

@@ -0,0 +1,254 @@
+<?php
+
+/**
+ * This object represents a CalDAV calendar.
+ *
+ * A calendar can contain multiple TODO and or Events. These are represented
+ * as Sabre_CalDAV_CalendarObject objects.
+ * 
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2010 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 Sabre_CalDAV_Calendar implements Sabre_DAV_ICollection, Sabre_DAV_IProperties {
+
+    /**
+     * This is an array with calendar information 
+     * 
+     * @var array 
+     */
+    private $calendarInfo;
+
+    /**
+     * CalDAV backend 
+     * 
+     * @var Sabre_CalDAV_Backend_Abstract 
+     */
+    private $caldavBackend;
+
+    /**
+     * Authentication backend
+     * 
+     * @var Sabre_DAV_Auth_Backend_Abstract 
+     */
+    private $authBackend;
+
+    /**
+     * Constructor 
+     * 
+     * @param Sabre_CalDAV_Backend_Abstract $caldavBackend 
+     * @param array $calendarInfo 
+     * @return void
+     */
+    public function __construct(Sabre_DAV_Auth_Backend_Abstract $authBackend, Sabre_CalDAV_Backend_Abstract $caldavBackend,$calendarInfo) {
+
+        $this->caldavBackend = $caldavBackend;
+        $this->authBackend = $authBackend;
+        $this->calendarInfo = $calendarInfo;
+
+
+    }
+
+    /**
+     * Returns the name of the calendar 
+     * 
+     * @return string 
+     */
+    public function getName() {
+
+        return $this->calendarInfo['uri'];
+
+    }
+
+    /**
+     * Updates properties such as the display name and description 
+     * 
+     * @param array $mutations 
+     * @return array 
+     */
+    public function updateProperties($mutations) {
+
+        if (!$this->hasPrivilege()) throw new Sabre_DAV_Exception_Forbidden('Permission denied to access this calendar');
+        return $this->caldavBackend->updateCalendar($this->calendarInfo['id'],$mutations);
+
+    }
+
+    /**
+     * Returns the list of properties 
+     * 
+     * @param array $properties 
+     * @return array 
+     */
+    public function getProperties($requestedProperties) {
+
+        $response = array();
+
+        if (!$this->hasPrivilege()) return array(); 
+
+        foreach($requestedProperties as $prop) switch($prop) {
+
+            case '{DAV:}resourcetype' : 
+                $response[$prop] =  new Sabre_DAV_Property_ResourceType(array('{urn:ietf:params:xml:ns:caldav}calendar','{DAV:}collection')); 
+                break;
+            case '{urn:ietf:params:xml:ns:caldav}supported-calendar-data' : 
+                $response[$prop] = new Sabre_CalDAV_Property_SupportedCalendarData(); 
+                break;
+            case '{urn:ietf:params:xml:ns:caldav}supported-collation-set' : 
+                $response[$prop] =  new Sabre_CalDAV_Property_SupportedCollationSet(); 
+                break;
+            case '{DAV:}owner' :
+                $response[$prop] = new Sabre_DAV_Property_Principal(Sabre_DAV_Property_Principal::HREF,$this->calendarInfo['principaluri']);
+                break;
+            default : 
+                if (isset($this->calendarInfo[$prop])) $response[$prop] = $this->calendarInfo[$prop];
+                break;
+
+        }
+        return $response;
+
+    }
+
+    /**
+     * Returns a calendar object
+     *
+     * The contained calendar objects are for example Events or Todo's.
+     * 
+     * @param string $name 
+     * @return Sabre_DAV_ICalendarObject 
+     */
+    public function getChild($name) {
+
+        if (!$this->hasPrivilege()) throw new Sabre_DAV_Exception_Forbidden('Permission denied to access this calendar');
+        $obj = $this->caldavBackend->getCalendarObject($this->calendarInfo['id'],$name);
+        if (!$obj) throw new Sabre_DAV_Exception_FileNotFound('Calendar object not found');
+        return new Sabre_CalDAV_CalendarObject($this->caldavBackend,$this->calendarInfo,$obj);
+
+    }
+
+    /**
+     * Returns the full list of calendar objects  
+     * 
+     * @return array 
+     */
+    public function getChildren() {
+
+        if (!$this->hasPrivilege()) throw new Sabre_DAV_Exception_Forbidden('Permission denied to access this calendar');
+        $objs = $this->caldavBackend->getCalendarObjects($this->calendarInfo['id']);
+        $children = array();
+        foreach($objs as $obj) {
+            $children[] = new Sabre_CalDAV_CalendarObject($this->caldavBackend,$this->calendarInfo,$obj);
+        }
+        return $children;
+
+    }
+
+    /**
+     * Checks if a child-node exists. 
+     * 
+     * @param string $name 
+     * @return bool 
+     */
+    public function childExists($name) {
+
+        if (!$this->hasPrivilege()) throw new Sabre_DAV_Exception_Forbidden('Permission denied to access this calendar');
+        $obj = $this->caldavBackend->getCalendarObject($this->calendarInfo['id'],$name);
+        if (!$obj) 
+            return false;
+        else 
+            return true;
+
+    }
+
+    /**
+     * Creates a new directory
+     *
+     * We actually block this, as subdirectories are not allowed in calendars.
+     * 
+     * @param string $name 
+     * @return void
+     */
+    public function createDirectory($name) {
+
+        if (!$this->hasPrivilege()) throw new Sabre_DAV_Exception_Forbidden('Permission denied to access this calendar');
+        throw new Sabre_DAV_Exception_MethodNotAllowed('Creating collections in calendar objects is not allowed');
+
+    }
+
+    /**
+     * Creates a new file
+     *
+     * The contents of the new file must be a valid ICalendar string.
+     * 
+     * @param string $name 
+     * @param resource $calendarData 
+     * @return void
+     */
+    public function createFile($name,$calendarData = null) {
+
+        if (!$this->hasPrivilege()) throw new Sabre_DAV_Exception_Forbidden('Permission denied to access this calendar');
+        $calendarData = stream_get_contents($calendarData);
+
+        $supportedComponents = $this->calendarInfo['{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}supported-calendar-component-set']->getValue();
+        Sabre_CalDAV_ICalendarUtil::validateICalendarObject($calendarData, $supportedComponents);
+
+        $this->caldavBackend->createCalendarObject($this->calendarInfo['id'],$name,$calendarData);
+
+    }
+
+    /**
+     * Deletes the calendar. 
+     * 
+     * @return void
+     */
+    public function delete() {
+
+        if (!$this->hasPrivilege()) throw new Sabre_DAV_Exception_Forbidden('Permission denied to access this calendar');
+        $this->caldavBackend->deleteCalendar($this->calendarInfo['id']);
+
+    }
+
+    /**
+     * Renames the calendar. Note that most calendars use the 
+     * {DAV:}displayname to display a name to display a name. 
+     * 
+     * @param string $newName 
+     * @return void
+     */
+    public function setName($newName) {
+
+        if (!$this->hasPrivilege()) throw new Sabre_DAV_Exception_Forbidden('Permission denied to access this calendar');
+        throw new Sabre_DAV_Exception_MethodNotAllowed('Renaming calendars is not yet supported');
+
+    }
+
+    /**
+     * Returns the last modification date as a unix timestamp.
+     * 
+     * @return void
+     */
+    public function getLastModified() {
+
+        return null;
+
+    }
+
+    /**
+     * Check if user has access.
+     *
+     * This method does a check if the currently logged in user
+     * has permission to access this calendar. There is only read-write
+     * access, so you're in or you're out.
+     * 
+     * @return bool 
+     */
+    protected function hasPrivilege() {
+
+        if (!$user = $this->authBackend->getCurrentUser()) return false;
+        if ($user['uri']!==$this->calendarInfo['principaluri']) return false;
+        return true;
+
+    }
+
+}