merge master into filesystem

3rdparty/Sabre.includes.php

@@ -1,26 +0,0 @@
-<?php
-
-/**
- * Library include file
- *
- * This file is deprecated, don't use it!
- * Instead, use the specific includes files that are in the sub-packages.
- *
- *   Sabre/DAV/includes.php
- *   Sabre/HTTP/includes.php
- *
- *   etc..
- *
- * This file contains all includes to the rest of the SabreDAV library
- * Make sure the lib/ directory is in PHP's include_path.
- *
- * @package Sabre
- * @deprecated Don't use this file, it will be remove in a future version
- * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-
-include 'Sabre/HTTP/includes.php';
-include 'Sabre/DAV/includes.php';
-

3rdparty/Sabre/CalDAV/Backend/Abstract.php

@@ -1,47 +1,19 @@
 <?php
 
+use Sabre\VObject;
+
 /**
  * Abstract Calendaring backend. Extend this class to create your own backends.
  *
+ * Checkout the BackendInterface for all the methods that must be implemented.
+ *
  * @package Sabre
  * @subpackage CalDAV
  * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
  * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
  */
-abstract class Sabre_CalDAV_Backend_Abstract {
-
-    /**
-     * 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 $principalUri
-     * @return array
-     */
-    abstract function getCalendarsForUser($principalUri);
-
-    /**
-     * 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 $properties
-     * @return void
-     */
-    abstract function createCalendar($principalUri,$calendarUri,array $properties);
+abstract class Sabre_CalDAV_Backend_Abstract implements Sabre_CalDAV_Backend_BackendInterface {
 
     /**
      * Updates properties for a calendar.
@@ -75,7 +47,7 @@ abstract class Sabre_CalDAV_Backend_Abstract {
      * (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 mixed $calendarId
      * @param array $mutations
      * @return bool|array
      */
@@ -86,83 +58,97 @@ abstract class Sabre_CalDAV_Backend_Abstract {
     }
 
     /**
-     * Delete a calendar and all it's objects
+     * Performs a calendar-query on the contents of this calendar.
      *
-     * @param string $calendarId
-     * @return void
-     */
-    abstract function deleteCalendar($calendarId);
-
-    /**
-     * 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 calendar 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.
-     *   * size - The size of the calendar objects, in bytes.
-     *
-     * 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.
-     *
-     * If neither etag or size are specified, the calendardata will be
-     * used/fetched to determine these numbers. If both are specified the
-     * amount of times this is needed is reduced by a great degree.
-     *
-     * @param string $calendarId
-     * @return array
-     */
-    abstract function getCalendarObjects($calendarId);
-
-    /**
-     * Returns information from a single calendar object, based on it's object
-     * uri.
+     * The calendar-query is defined in RFC4791 : CalDAV. Using the
+     * calendar-query it is possible for a client to request a specific set of
+     * object, based on contents of iCalendar properties, date-ranges and
+     * iCalendar component types (VTODO, VEVENT).
+     *
+     * This method should just return a list of (relative) urls that match this
+     * query.
+     *
+     * The list of filters are specified as an array. The exact array is
+     * documented by Sabre_CalDAV_CalendarQueryParser.
+     *
+     * Note that it is extremely likely that getCalendarObject for every path
+     * returned from this method will be called almost immediately after. You
+     * may want to anticipate this to speed up these requests.
      *
-     * The returned array must have the same keys as getCalendarObjects. The
-     * 'calendardata' object is required here though, while it's not required
-     * for getCalendarObjects.
+     * This method provides a default implementation, which parses *all* the
+     * iCalendar objects in the specified calendar.
      *
-     * @param string $calendarId
-     * @param string $objectUri
+     * This default may well be good enough for personal use, and calendars
+     * that aren't very large. But if you anticipate high usage, big calendars
+     * or high loads, you are strongly adviced to optimize certain paths.
+     *
+     * The best way to do so is override this method and to optimize
+     * specifically for 'common filters'.
+     *
+     * Requests that are extremely common are:
+     *   * requests for just VEVENTS
+     *   * requests for just VTODO
+     *   * requests with a time-range-filter on either VEVENT or VTODO.
+     *
+     * ..and combinations of these requests. It may not be worth it to try to
+     * handle every possible situation and just rely on the (relatively
+     * easy to use) CalendarQueryValidator to handle the rest.
+     *
+     * Note that especially time-range-filters may be difficult to parse. A
+     * time-range filter specified on a VEVENT must for instance also handle
+     * recurrence rules correctly.
+     * A good example of how to interprete all these filters can also simply
+     * be found in Sabre_CalDAV_CalendarQueryFilter. This class is as correct
+     * as possible, so it gives you a good idea on what type of stuff you need
+     * to think of.
+     *
+     * @param mixed $calendarId
+     * @param array $filters
      * @return array
      */
-    abstract function getCalendarObject($calendarId,$objectUri);
+    public function calendarQuery($calendarId, array $filters) {
 
-    /**
-     * Creates a new calendar object.
-     *
-     * @param string $calendarId
-     * @param string $objectUri
-     * @param string $calendarData
-     * @return void
-     */
-    abstract function createCalendarObject($calendarId,$objectUri,$calendarData);
+        $result = array();
+        $objects = $this->getCalendarObjects($calendarId);
 
-    /**
-     * Updates an existing calendarobject, based on it's uri.
-     *
-     * @param string $calendarId
-     * @param string $objectUri
-     * @param string $calendarData
-     * @return void
-     */
-    abstract function updateCalendarObject($calendarId,$objectUri,$calendarData);
+        $validator = new Sabre_CalDAV_CalendarQueryValidator();
+
+        foreach($objects as $object) {
+
+            if ($this->validateFilterForObject($object, $filters)) {
+                $result[] = $object['uri'];
+            }
+
+        }
+
+        return $result;
+
+    }
 
     /**
-     * Deletes an existing calendar object.
+     * This method validates if a filters (as passed to calendarQuery) matches
+     * the given object.
      *
-     * @param string $calendarId
-     * @param string $objectUri
-     * @return void
+     * @param array $object
+     * @param array $filter
+     * @return bool
      */
-    abstract function deleteCalendarObject($calendarId,$objectUri);
+    protected function validateFilterForObject(array $object, array $filters) {
+
+        // Unfortunately, setting the 'calendardata' here is optional. If
+        // it was excluded, we actually need another call to get this as
+        // well.
+        if (!isset($object['calendardata'])) {
+            $object = $this->getCalendarObject($object['calendarid'], $object['uri']);
+        }
+
+        $data = is_resource($object['calendardata'])?stream_get_contents($object['calendardata']):$object['calendardata'];
+        $vObject = VObject\Reader::read($data);
+
+        $validator = new Sabre_CalDAV_CalendarQueryValidator();
+        return $validator->validate($vObject, $filters);
+
+    }
+
 
 }

3rdparty/Sabre/CalDAV/Backend/BackendInterface.php

@@ -0,0 +1,231 @@
+<?php
+
+/**
+ * Every CalDAV backend must at least implement this interface.
+ * 
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+interface Sabre_CalDAV_Backend_BackendInterface {
+
+    /**
+     * 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);
+
+    /**
+     * 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 $properties
+     * @return void
+     */
+    public function createCalendar($principalUri,$calendarUri,array $properties);
+
+    /**
+     * 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-existent property is always successful.
+     *
+     * 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 mixed $calendarId
+     * @param array $mutations
+     * @return bool|array
+     */
+    public function updateCalendar($calendarId, array $mutations); 
+
+    /**
+     * Delete a calendar and all it's objects
+     *
+     * @param mixed $calendarId
+     * @return void
+     */
+    public function deleteCalendar($calendarId);
+
+    /**
+     * 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 calendar 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.
+     *   * size - The size of the calendar objects, in bytes.
+     *
+     * 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.
+     *
+     * If neither etag or size are specified, the calendardata will be
+     * used/fetched to determine these numbers. If both are specified the
+     * amount of times this is needed is reduced by a great degree.
+     *
+     * @param mixed $calendarId
+     * @return array
+     */
+    public function getCalendarObjects($calendarId);
+
+    /**
+     * 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 mixed $calendarId
+     * @param string $objectUri
+     * @return array
+     */
+    public function getCalendarObject($calendarId,$objectUri);
+
+    /**
+     * Creates a new calendar object.
+     *
+     * It is possible return an etag from this function, which will be used in
+     * the response to this PUT request. Note that the ETag must be surrounded
+     * by double-quotes.
+     *
+     * However, you should only really return this ETag if you don't mangle the
+     * calendar-data. If the result of a subsequent GET to this object is not
+     * the exact same as this request body, you should omit the ETag.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @param string $calendarData
+     * @return string|null
+     */
+    public function createCalendarObject($calendarId,$objectUri,$calendarData);
+
+    /**
+     * Updates an existing calendarobject, based on it's uri.
+     *
+     * It is possible return an etag from this function, which will be used in
+     * the response to this PUT request. Note that the ETag must be surrounded
+     * by double-quotes.
+     *
+     * However, you should only really return this ETag if you don't mangle the
+     * calendar-data. If the result of a subsequent GET to this object is not
+     * the exact same as this request body, you should omit the ETag.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @param string $calendarData
+     * @return string|null
+     */
+    public function updateCalendarObject($calendarId,$objectUri,$calendarData);
+
+    /**
+     * Deletes an existing calendar object.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @return void
+     */
+    public function deleteCalendarObject($calendarId,$objectUri);
+
+    /**
+     * Performs a calendar-query on the contents of this calendar.
+     *
+     * The calendar-query is defined in RFC4791 : CalDAV. Using the
+     * calendar-query it is possible for a client to request a specific set of
+     * object, based on contents of iCalendar properties, date-ranges and
+     * iCalendar component types (VTODO, VEVENT).
+     *
+     * This method should just return a list of (relative) urls that match this
+     * query.
+     *
+     * The list of filters are specified as an array. The exact array is
+     * documented by Sabre_CalDAV_CalendarQueryParser.
+     *
+     * Note that it is extremely likely that getCalendarObject for every path
+     * returned from this method will be called almost immediately after. You
+     * may want to anticipate this to speed up these requests.
+     *
+     * This method provides a default implementation, which parses *all* the
+     * iCalendar objects in the specified calendar.
+     *
+     * This default may well be good enough for personal use, and calendars
+     * that aren't very large. But if you anticipate high usage, big calendars
+     * or high loads, you are strongly adviced to optimize certain paths.
+     *
+     * The best way to do so is override this method and to optimize
+     * specifically for 'common filters'.
+     *
+     * Requests that are extremely common are:
+     *   * requests for just VEVENTS
+     *   * requests for just VTODO
+     *   * requests with a time-range-filter on either VEVENT or VTODO.
+     *
+     * ..and combinations of these requests. It may not be worth it to try to
+     * handle every possible situation and just rely on the (relatively
+     * easy to use) CalendarQueryValidator to handle the rest.
+     *
+     * Note that especially time-range-filters may be difficult to parse. A
+     * time-range filter specified on a VEVENT must for instance also handle
+     * recurrence rules correctly.
+     * A good example of how to interprete all these filters can also simply
+     * be found in Sabre_CalDAV_CalendarQueryFilter. This class is as correct
+     * as possible, so it gives you a good idea on what type of stuff you need
+     * to think of.
+     *
+     * @param mixed $calendarId
+     * @param array $filters
+     * @return array
+     */
+    public function calendarQuery($calendarId, array $filters); 
+
+}

3rdparty/Sabre/CalDAV/Backend/NotificationSupport.php

@@ -0,0 +1,47 @@
+<?php
+
+/**
+ * Adds caldav notification support to a backend.
+ *
+ * Note: This feature is experimental, and may change in between different
+ * SabreDAV versions.
+ *
+ * Notifications are defined at:
+ * http://svn.calendarserver.org/repository/calendarserver/CalendarServer/trunk/doc/Extensions/caldav-notifications.txt
+ *
+ * These notifications are basically a list of server-generated notifications 
+ * displayed to the user. Users can dismiss notifications by deleting them.
+ *
+ * The primary usecase is to allow for calendar-sharing.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+interface Sabre_CalDAV_Backend_NotificationSupport extends Sabre_CalDAV_Backend_BackendInterface {
+
+    /**
+     * Returns a list of notifications for a given principal url.
+     *
+     * The returned array should only consist of implementations of
+     * Sabre_CalDAV_Notifications_INotificationType. 
+     * 
+     * @param string $principalUri
+     * @return array 
+     */
+    public function getNotificationsForPrincipal($principalUri);
+
+    /**
+     * This deletes a specific notifcation.
+     *
+     * This may be called by a client once it deems a notification handled. 
+     * 
+     * @param string $principalUri 
+     * @param Sabre_CalDAV_Notifications_INotificationType $notification 
+     * @return void
+     */
+    public function deleteNotification($principalUri, Sabre_CalDAV_Notifications_INotificationType $notification); 
+
+}

3rdparty/Sabre/CalDAV/Backend/PDO.php

@@ -1,5 +1,7 @@
 <?php
 
+use Sabre\VObject;
+
 /**
  * PDO CalDAV backend
  *
@@ -9,11 +11,21 @@
  * @package Sabre
  * @subpackage CalDAV
  * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
  * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
  */
 class Sabre_CalDAV_Backend_PDO extends Sabre_CalDAV_Backend_Abstract {
 
+    /**
+     * We need to specify a max date, because we need to stop *somewhere*
+     *
+     * On 32 bit system the maximum for a signed integer is 2147483647, so
+     * MAX_DATE cannot be higher than date('Y-m-d', 2147483647) which results
+     * in 2038-01-19 to avoid problems when the date is converted
+     * to a unix timestamp.
+     */
+    const MAX_DATE = '2038-01-01';
+
     /**
      * pdo
      *
@@ -37,8 +49,9 @@ class Sabre_CalDAV_Backend_PDO extends Sabre_CalDAV_Backend_Abstract {
 
     /**
      * List of CalDAV properties, and how they map to database fieldnames
+     * Add your own properties by simply adding on to this array.
      *
-     * Add your own properties by simply adding on to this array
+     * Note that only string-based properties are supported here.
      *
      * @var array
      */
@@ -90,6 +103,7 @@ class Sabre_CalDAV_Backend_PDO extends Sabre_CalDAV_Backend_Abstract {
         $fields[] = 'ctag';
         $fields[] = 'components';
         $fields[] = 'principaluri';
+        $fields[] = 'transparent';
 
         // Making fields a comma-delimited list
         $fields = implode(', ', $fields);
@@ -110,6 +124,7 @@ class Sabre_CalDAV_Backend_PDO extends Sabre_CalDAV_Backend_Abstract {
                 'principaluri' => $row['principaluri'],
                 '{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}getctag' => $row['ctag']?$row['ctag']:'0',
                 '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}supported-calendar-component-set' => new Sabre_CalDAV_Property_SupportedCalendarComponentSet($components),
+                '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}schedule-calendar-transp' => new Sabre_CalDAV_Property_ScheduleCalendarTransp($row['transparent']?'transparent':'opaque'),
             );
 
 
@@ -142,11 +157,13 @@ class Sabre_CalDAV_Backend_PDO extends Sabre_CalDAV_Backend_Abstract {
             'principaluri',
             'uri',
             'ctag',
+            'transparent',
         );
         $values = array(
             ':principaluri' => $principalUri,
             ':uri'          => $calendarUri,
             ':ctag'         => 1,
+            ':transparent'  => 0,
         );
 
         // Default value
@@ -160,6 +177,10 @@ class Sabre_CalDAV_Backend_PDO extends Sabre_CalDAV_Backend_Abstract {
             }
             $values[':components'] = implode(',',$properties[$sccs]->getValue());
         }
+        $transp = '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}schedule-calendar-transp';
+        if (isset($properties[$transp])) {
+            $values[':transparent'] = $properties[$transp]->getValue()==='transparent';
+        }
 
         foreach($this->propertyMap as $xmlName=>$dbName) {
             if (isset($properties[$xmlName])) {
@@ -225,17 +246,25 @@ class Sabre_CalDAV_Backend_PDO extends Sabre_CalDAV_Backend_Abstract {
 
         foreach($mutations as $propertyName=>$propertyValue) {
 
-            // We don't know about this property.
-            if (!isset($this->propertyMap[$propertyName])) {
-                $hasError = true;
-                $result[403][$propertyName] = null;
-                unset($mutations[$propertyName]);
-                continue;
+            switch($propertyName) {
+                case '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}schedule-calendar-transp' :
+                    $fieldName = 'transparent';
+                    $newValues[$fieldName] = $propertyValue->getValue()==='transparent';
+                    break;
+                default :
+                    // Checking the property map
+                    if (!isset($this->propertyMap[$propertyName])) {
+                        // We don't know about this property.
+                        $hasError = true;
+                        $result[403][$propertyName] = null;
+                        unset($mutations[$propertyName]);
+                        continue;
+                    }
+
+                    $fieldName = $this->propertyMap[$propertyName];
+                    $newValues[$fieldName] = $propertyValue;
             }
 
-            $fieldName = $this->propertyMap[$propertyName];
-            $newValues[$fieldName] = $propertyValue;
-
         }
 
         // If there were any errors we need to fail the request
@@ -316,9 +345,22 @@ class Sabre_CalDAV_Backend_PDO extends Sabre_CalDAV_Backend_Abstract {
      */
     public function getCalendarObjects($calendarId) {
 
-        $stmt = $this->pdo->prepare('SELECT * FROM '.$this->calendarObjectTableName.' WHERE calendarid = ?');
+        $stmt = $this->pdo->prepare('SELECT id, uri, lastmodified, etag, calendarid, size FROM '.$this->calendarObjectTableName.' WHERE calendarid = ?');
         $stmt->execute(array($calendarId));
-        return $stmt->fetchAll();
+
+        $result = array();
+        foreach($stmt->fetchAll(\PDO::FETCH_ASSOC) as $row) {
+            $result[] = array(
+                'id'           => $row['id'],
+                'uri'          => $row['uri'],
+                'lastmodified' => $row['lastmodified'],
+                'etag'         => '"' . $row['etag'] . '"',
+                'calendarid'   => $row['calendarid'],
+                'size'         => (int)$row['size'],
+            );
+        }
+
+        return $result;
 
     }
 
@@ -336,44 +378,166 @@ class Sabre_CalDAV_Backend_PDO extends Sabre_CalDAV_Backend_Abstract {
      */
     public function getCalendarObject($calendarId,$objectUri) {
 
-        $stmt = $this->pdo->prepare('SELECT * FROM '.$this->calendarObjectTableName.' WHERE calendarid = ? AND uri = ?');
+        $stmt = $this->pdo->prepare('SELECT id, uri, lastmodified, etag, calendarid, size, calendardata FROM '.$this->calendarObjectTableName.' WHERE calendarid = ? AND uri = ?');
         $stmt->execute(array($calendarId, $objectUri));
-        return $stmt->fetch();
+        $row = $stmt->fetch(\PDO::FETCH_ASSOC);
+
+        if(!$row) return null;
+
+        return array(
+            'id'           => $row['id'],
+            'uri'          => $row['uri'],
+            'lastmodified' => $row['lastmodified'],
+            'etag'         => '"' . $row['etag'] . '"',
+            'calendarid'   => $row['calendarid'],
+            'size'         => (int)$row['size'],
+            'calendardata' => $row['calendardata'],
+         );
 
     }
 
+
     /**
      * Creates a new calendar object.
      *
-     * @param string $calendarId
+     * It is possible return an etag from this function, which will be used in
+     * the response to this PUT request. Note that the ETag must be surrounded
+     * by double-quotes.
+     *
+     * However, you should only really return this ETag if you don't mangle the
+     * calendar-data. If the result of a subsequent GET to this object is not
+     * the exact same as this request body, you should omit the ETag.
+     *
+     * @param mixed $calendarId
      * @param string $objectUri
      * @param string $calendarData
-     * @return void
+     * @return string|null
      */
     public function createCalendarObject($calendarId,$objectUri,$calendarData) {
 
-        $stmt = $this->pdo->prepare('INSERT INTO '.$this->calendarObjectTableName.' (calendarid, uri, calendardata, lastmodified) VALUES (?,?,?,?)');
-        $stmt->execute(array($calendarId,$objectUri,$calendarData,time()));
+        $extraData = $this->getDenormalizedData($calendarData);
+
+        $stmt = $this->pdo->prepare('INSERT INTO '.$this->calendarObjectTableName.' (calendarid, uri, calendardata, lastmodified, etag, size, componenttype, firstoccurence, lastoccurence) VALUES (?,?,?,?,?,?,?,?,?)');
+        $stmt->execute(array(
+            $calendarId,
+            $objectUri,
+            $calendarData,
+            time(),
+            $extraData['etag'],
+            $extraData['size'],
+            $extraData['componentType'],
+            $extraData['firstOccurence'],
+            $extraData['lastOccurence'],
+        ));
         $stmt = $this->pdo->prepare('UPDATE '.$this->calendarTableName.' SET ctag = ctag + 1 WHERE id = ?');
         $stmt->execute(array($calendarId));
 
+        return '"' . $extraData['etag'] . '"';
+
     }
 
     /**
      * Updates an existing calendarobject, based on it's uri.
      *
-     * @param string $calendarId
+     * It is possible return an etag from this function, which will be used in
+     * the response to this PUT request. Note that the ETag must be surrounded
+     * by double-quotes.
+     *
+     * However, you should only really return this ETag if you don't mangle the
+     * calendar-data. If the result of a subsequent GET to this object is not
+     * the exact same as this request body, you should omit the ETag.
+     *
+     * @param mixed $calendarId
      * @param string $objectUri
      * @param string $calendarData
-     * @return void
+     * @return string|null
      */
     public function updateCalendarObject($calendarId,$objectUri,$calendarData) {
 
-        $stmt = $this->pdo->prepare('UPDATE '.$this->calendarObjectTableName.' SET calendardata = ?, lastmodified = ? WHERE calendarid = ? AND uri = ?');
-        $stmt->execute(array($calendarData,time(),$calendarId,$objectUri));
+        $extraData = $this->getDenormalizedData($calendarData);
+
+        $stmt = $this->pdo->prepare('UPDATE '.$this->calendarObjectTableName.' SET calendardata = ?, lastmodified = ?, etag = ?, size = ?, componenttype = ?, firstoccurence = ?, lastoccurence = ? WHERE calendarid = ? AND uri = ?');
+        $stmt->execute(array($calendarData,time(), $extraData['etag'], $extraData['size'], $extraData['componentType'], $extraData['firstOccurence'], $extraData['lastOccurence'] ,$calendarId,$objectUri));
         $stmt = $this->pdo->prepare('UPDATE '.$this->calendarTableName.' SET ctag = ctag + 1 WHERE id = ?');
         $stmt->execute(array($calendarId));
 
+        return '"' . $extraData['etag'] . '"';
+
+    }
+
+    /**
+     * Parses some information from calendar objects, used for optimized
+     * calendar-queries.
+     *
+     * Returns an array with the following keys:
+     *   * etag
+     *   * size
+     *   * componentType
+     *   * firstOccurence
+     *   * lastOccurence
+     *
+     * @param string $calendarData
+     * @return array
+     */
+    protected function getDenormalizedData($calendarData) {
+
+        $vObject = VObject\Reader::read($calendarData);
+        $componentType = null;
+        $component = null;
+        $firstOccurence = null;
+        $lastOccurence = null;
+        foreach($vObject->getComponents() as $component) {
+            if ($component->name!=='VTIMEZONE') {
+                $componentType = $component->name;
+                break;
+            }
+        }
+        if (!$componentType) {
+            throw new Sabre_DAV_Exception_BadRequest('Calendar objects must have a VJOURNAL, VEVENT or VTODO component');
+        }
+        if ($componentType === 'VEVENT') {
+            $firstOccurence = $component->DTSTART->getDateTime()->getTimeStamp();
+            // Finding the last occurence is a bit harder
+            if (!isset($component->RRULE)) {
+                if (isset($component->DTEND)) {
+                    $lastOccurence = $component->DTEND->getDateTime()->getTimeStamp();
+                } elseif (isset($component->DURATION)) {
+                    $endDate = clone $component->DTSTART->getDateTime();
+                    $endDate->add(VObject\DateTimeParser::parse($component->DURATION->value));
+                    $lastOccurence = $endDate->getTimeStamp();
+                } elseif ($component->DTSTART->getDateType()===VObject\Property\DateTime::DATE) {
+                    $endDate = clone $component->DTSTART->getDateTime();
+                    $endDate->modify('+1 day');
+                    $lastOccurence = $endDate->getTimeStamp();
+                } else {
+                    $lastOccurence = $firstOccurence;
+                }
+            } else {
+                $it = new VObject\RecurrenceIterator($vObject, (string)$component->UID);
+                $maxDate = new DateTime(self::MAX_DATE);
+                if ($it->isInfinite()) {
+                    $lastOccurence = $maxDate->getTimeStamp();
+                } else {
+                    $end = $it->getDtEnd();
+                    while($it->valid() && $end < $maxDate) {
+                        $end = $it->getDtEnd();
+                        $it->next();
+
+                    }
+                    $lastOccurence = $end->getTimeStamp();
+                }
+
+            }
+        }
+
+        return array(
+            'etag' => md5($calendarData),
+            'size' => strlen($calendarData),
+            'componentType' => $componentType,
+            'firstOccurence' => $firstOccurence,
+            'lastOccurence'  => $lastOccurence,
+        );
+
     }
 
     /**
@@ -392,5 +556,132 @@ class Sabre_CalDAV_Backend_PDO extends Sabre_CalDAV_Backend_Abstract {
 
     }
 
+    /**
+     * Performs a calendar-query on the contents of this calendar.
+     *
+     * The calendar-query is defined in RFC4791 : CalDAV. Using the
+     * calendar-query it is possible for a client to request a specific set of
+     * object, based on contents of iCalendar properties, date-ranges and
+     * iCalendar component types (VTODO, VEVENT).
+     *
+     * This method should just return a list of (relative) urls that match this
+     * query.
+     *
+     * The list of filters are specified as an array. The exact array is
+     * documented by Sabre_CalDAV_CalendarQueryParser.
+     *
+     * Note that it is extremely likely that getCalendarObject for every path
+     * returned from this method will be called almost immediately after. You
+     * may want to anticipate this to speed up these requests.
+     *
+     * This method provides a default implementation, which parses *all* the
+     * iCalendar objects in the specified calendar.
+     *
+     * This default may well be good enough for personal use, and calendars
+     * that aren't very large. But if you anticipate high usage, big calendars
+     * or high loads, you are strongly adviced to optimize certain paths.
+     *
+     * The best way to do so is override this method and to optimize
+     * specifically for 'common filters'.
+     *
+     * Requests that are extremely common are:
+     *   * requests for just VEVENTS
+     *   * requests for just VTODO
+     *   * requests with a time-range-filter on a VEVENT.
+     *
+     * ..and combinations of these requests. It may not be worth it to try to
+     * handle every possible situation and just rely on the (relatively
+     * easy to use) CalendarQueryValidator to handle the rest.
+     *
+     * Note that especially time-range-filters may be difficult to parse. A
+     * time-range filter specified on a VEVENT must for instance also handle
+     * recurrence rules correctly.
+     * A good example of how to interprete all these filters can also simply
+     * be found in Sabre_CalDAV_CalendarQueryFilter. This class is as correct
+     * as possible, so it gives you a good idea on what type of stuff you need
+     * to think of.
+     *
+     * This specific implementation (for the PDO) backend optimizes filters on
+     * specific components, and VEVENT time-ranges.
+     *
+     * @param string $calendarId
+     * @param array $filters
+     * @return array
+     */
+    public function calendarQuery($calendarId, array $filters) {
+
+        $result = array();
+        $validator = new Sabre_CalDAV_CalendarQueryValidator();
+
+        $componentType = null;
+        $requirePostFilter = true;
+        $timeRange = null;
+
+        // if no filters were specified, we don't need to filter after a query
+        if (!$filters['prop-filters'] && !$filters['comp-filters']) {
+            $requirePostFilter = false;
+        }
+
+        // Figuring out if there's a component filter
+        if (count($filters['comp-filters']) > 0 && !$filters['comp-filters'][0]['is-not-defined']) {
+            $componentType = $filters['comp-filters'][0]['name'];
+
+            // Checking if we need post-filters
+            if (!$filters['prop-filters'] && !$filters['comp-filters'][0]['comp-filters'] && !$filters['comp-filters'][0]['time-range'] && !$filters['comp-filters'][0]['prop-filters']) {
+                $requirePostFilter = false;
+            }
+            // There was a time-range filter
+            if ($componentType == 'VEVENT' && isset($filters['comp-filters'][0]['time-range'])) {
+                $timeRange = $filters['comp-filters'][0]['time-range'];
+
+                // If start time OR the end time is not specified, we can do a
+                // 100% accurate mysql query.
+                if (!$filters['prop-filters'] && !$filters['comp-filters'][0]['comp-filters'] && !$filters['comp-filters'][0]['prop-filters'] && (!$timeRange['start'] || !$timeRange['end'])) {
+                    $requirePostFilter = false;
+                }
+            }
 
+        }
+
+        if ($requirePostFilter) {
+            $query = "SELECT uri, calendardata FROM ".$this->calendarObjectTableName." WHERE calendarid = :calendarid";
+        } else {
+            $query = "SELECT uri FROM ".$this->calendarObjectTableName." WHERE calendarid = :calendarid";
+        }
+
+        $values = array(
+            'calendarid' => $calendarId,
+        );
+
+        if ($componentType) {
+            $query.=" AND componenttype = :componenttype";
+            $values['componenttype'] = $componentType;
+        }
+
+        if ($timeRange && $timeRange['start']) {
+            $query.=" AND lastoccurence > :startdate";
+            $values['startdate'] = $timeRange['start']->getTimeStamp();
+        }
+        if ($timeRange && $timeRange['end']) {
+            $query.=" AND firstoccurence < :enddate";
+            $values['enddate'] = $timeRange['end']->getTimeStamp();
+        }
+
+        $stmt = $this->pdo->prepare($query);
+        $stmt->execute($values);
+
+        $result = array();
+        while($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+            if ($requirePostFilter) {
+                if (!$this->validateFilterForObject($row, $filters)) {
+                    continue;
+                }
+            }
+            $result[] = $row['uri'];
+
+        }
+
+        return $result;
+
+    }
 }

3rdparty/Sabre/CalDAV/Backend/SharingSupport.php

@@ -0,0 +1,238 @@
+<?php
+
+/**
+ * Adds support for sharing features to a CalDAV server.
+ *
+ * Note: This feature is experimental, and may change in between different
+ * SabreDAV versions.
+ *
+ * Early warning: Currently SabreDAV provides no implementation for this. This
+ * is, because in it's current state there is no elegant way to do this.
+ * The problem lies in the fact that a real CalDAV server with sharing support
+ * would first need email support (with invite notifications), and really also
+ * a browser-frontend that allows people to accept or reject these shares.
+ *
+ * In addition, the CalDAV backends are currently kept as independent as
+ * possible, and should not be aware of principals, email addresses or
+ * accounts.
+ *
+ * Adding an implementation for Sharing to standard-sabredav would contradict
+ * these goals, so for this reason this is currently not implemented, although
+ * it may very well in the future; but probably not before SabreDAV 2.0.
+ *
+ * The interface works however, so if you implement all this, and do it
+ * correctly sharing _will_ work. It's not particularly easy, and I _urge you_
+ * to make yourself acquainted with the following document first:
+ *
+ * https://trac.calendarserver.org/browser/CalendarServer/trunk/doc/Extensions/caldav-sharing.txt
+ *
+ * An overview
+ * ===========
+ *
+ * Implementing this interface will allow a user to share his or her calendars
+ * to other users. Effectively, when a calendar is shared the calendar will
+ * show up in both the Sharer's and Sharee's calendar-home root.
+ * This interface adds a few methods that ensure that this happens, and there
+ * are also a number of new requirements in the base-class you must now follow.
+ *
+ *
+ * How it works
+ * ============
+ *
+ * When a user shares a calendar, the addShare() method will be called with a
+ * list of sharees that are now added, and a list of sharees that have been
+ * removed.
+ * Removal is instant, but when a sharee is added the sharee first gets a
+ * chance to accept or reject the invitation for a share.
+ *
+ * After a share is accepted, the calendar will be returned from
+ * getUserCalendars for both the sharer, and the sharee.
+ *
+ * If the sharee deletes the calendar, only their share gets deleted. When the
+ * owner deletes a calendar, it will be removed for everybody.
+ *
+ *
+ * Notifications
+ * =============
+ *
+ * During all these sharing operations, a lot of notifications are sent back
+ * and forward.
+ *
+ * Whenever the list of sharees for a calendar has been changed (they have been
+ * added, removed or modified) all sharees should get a notification for this
+ * change.
+ * This notification is always represented by:
+ *
+ * Sabre_CalDAV_Notifications_Notification_Invite
+ *
+ * In the case of an invite, the sharee may reply with an 'accept' or
+ * 'decline'. These are always represented by:
+ *
+ * Sabre_CalDAV_Notifications_Notification_Invite
+ *
+ *
+ * Calendar access by sharees
+ * ==========================
+ *
+ * As mentioned earlier, shared calendars must now also be returned for
+ * getCalendarsForUser for sharees. A few things change though.
+ *
+ * The following properties must be specified:
+ *
+ * 1. {http://calendarserver.org/ns/}shared-url
+ *
+ * This property MUST contain the url to the original calendar, that is.. the
+ * path to the calendar from the owner.
+ *
+ * 2. {http://sabredav.org/ns}owner-principal
+ *
+ * This is a url to to the principal who is sharing the calendar.
+ *
+ * 3. {http://sabredav.org/ns}read-only
+ *
+ * This should be either 0 or 1, depending on if the user has read-only or
+ * read-write access to the calendar.
+ *
+ * Only when this is done, the calendar will correctly be marked as a calendar
+ * that's shared to him, thus allowing clients to display the correct interface
+ * and ACL enforcement.
+ *
+ * If a sharee deletes their calendar, only their instance of the calendar
+ * should be deleted, the original should still exists.
+ * Pretty much any 'dead' WebDAV properties on these shared calendars should be
+ * specific to a user. This means that if the displayname is changed by a
+ * sharee, the original is not affected. This is also true for:
+ *   * The description
+ *   * The color
+ *   * The order
+ *   * And any other dead properties.
+ *
+ * Properties like a ctag should not be different for multiple instances of the
+ * calendar.
+ *
+ * Lastly, objects *within* calendars should also have user-specific data. The
+ * two things that are user-specific are:
+ *   * VALARM objects
+ *   * The TRANSP property
+ *
+ * This _also_ implies that if a VALARM is deleted by a sharee for some event,
+ * this has no effect on the original VALARM.
+ *
+ * Understandably, the this last requirement is one of the hardest.
+ * Realisticly, I can see people ignoring this part of the spec, but that could
+ * cause a different set of issues.
+ *
+ *
+ * Publishing
+ * ==========
+ *
+ * When a user publishes a url, the server should generate a 'publish url'.
+ * This is a read-only url, anybody can use to consume the calendar feed.
+ *
+ * Calendars are in one of two states:
+ *   * published
+ *   * unpublished
+ *
+ * If a calendar is published, the following property should be returned
+ * for each calendar in getCalendarsForPrincipal.
+ *
+ * {http://calendarserver.org/ns/}publish-url
+ *
+ * This element should contain a {DAV:}href element, which points to the
+ * public url that does not require authentication. Unlike every other href,
+ * this url must be absolute.
+ *
+ * Ideally, the following property is always returned
+ *
+ * {http://calendarserver.org/ns/}pre-publish-url
+ *
+ * This property should contain the url that the calendar _would_ have, if it
+ * were to be published. iCal uses this to display the url, before the user
+ * will actually publish it.
+ *
+ *
+ * Selectively disabling publish or share feature
+ * ==============================================
+ *
+ * If Sabre_CalDAV_Property_AllowedSharingModes is returned from
+ * getCalendarsByUser, this allows the server to specify wether either sharing,
+ * or publishing is supported.
+ *
+ * This allows a client to determine in advance which features are available,
+ * and update the interface appropriately. If this property is not returned by
+ * the backend, the SharingPlugin automatically injects it and assumes both
+ * features are available.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+interface Sabre_CalDAV_Backend_SharingSupport extends Sabre_CalDAV_Backend_NotificationSupport {
+
+    /**
+     * Updates the list of shares.
+     *
+     * The first array is a list of people that are to be added to the
+     * calendar.
+     *
+     * Every element in the add array has the following properties:
+     *   * href - A url. Usually a mailto: address
+     *   * commonName - Usually a first and last name, or false
+     *   * summary - A description of the share, can also be false
+     *   * readOnly - A boolean value
+     *
+     * Every element in the remove array is just the address string.
+     *
+     * Note that if the calendar is currently marked as 'not shared' by and
+     * this method is called, the calendar should be 'upgraded' to a shared
+     * calendar.
+     *
+     * @param mixed $calendarId
+     * @param array $add
+     * @param array $remove
+     * @return void
+     */
+    function updateShares($calendarId, array $add, array $remove);
+
+    /**
+     * Returns the list of people whom this calendar is shared with.
+     *
+     * Every element in this array should have the following properties:
+     *   * href - Often a mailto: address
+     *   * commonName - Optional, for example a first + last name
+     *   * status - See the Sabre_CalDAV_SharingPlugin::STATUS_ constants.
+     *   * readOnly - boolean
+     *   * summary - Optional, a description for the share
+     *
+     * @param mixed $calendarId
+     * @return array
+     */
+    function getShares($calendarId);
+
+    /**
+     * This method is called when a user replied to a request to share.
+     *
+     * If the user chose to accept the share, this method should return the
+     * newly created calendar url.
+     *
+     * @param string href The sharee who is replying (often a mailto: address)
+     * @param int status One of the SharingPlugin::STATUS_* constants
+     * @param string $calendarUri The url to the calendar thats being shared
+     * @param string $inReplyTo The unique id this message is a response to
+     * @param string $summary A description of the reply
+     * @return null|string
+     */
+    function shareReply($href, $status, $calendarUri, $inReplyTo, $summary = null);
+
+    /**
+     * Publishes a calendar
+     *
+     * @param mixed $calendarId
+     * @param bool $value
+     * @return void
+     */
+    function setPublishStatus($calendarId, $value);
+
+}

3rdparty/Sabre/CalDAV/Calendar.php

@@ -9,7 +9,7 @@
  * @package Sabre
  * @subpackage CalDAV
  * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @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_CalDAV_ICalendar, Sabre_DAV_IProperties, Sabre_DAVACL_IACL {
@@ -24,7 +24,7 @@ class Sabre_CalDAV_Calendar implements Sabre_CalDAV_ICalendar, Sabre_DAV_IProper
     /**
      * CalDAV backend
      *
-     * @var Sabre_CalDAV_Backend_Abstract
+     * @var Sabre_CalDAV_Backend_BackendInterface
      */
     protected $caldavBackend;
 
@@ -39,16 +39,15 @@ class Sabre_CalDAV_Calendar implements Sabre_CalDAV_ICalendar, Sabre_DAV_IProper
      * Constructor
      *
      * @param Sabre_DAVACL_IPrincipalBackend $principalBackend
-     * @param Sabre_CalDAV_Backend_Abstract $caldavBackend
+     * @param Sabre_CalDAV_Backend_BackendInterface $caldavBackend
      * @param array $calendarInfo
      */
-    public function __construct(Sabre_DAVACL_IPrincipalBackend $principalBackend, Sabre_CalDAV_Backend_Abstract $caldavBackend, $calendarInfo) {
+    public function __construct(Sabre_DAVACL_IPrincipalBackend $principalBackend, Sabre_CalDAV_Backend_BackendInterface $caldavBackend, $calendarInfo) {
 
         $this->caldavBackend = $caldavBackend;
         $this->principalBackend = $principalBackend;
         $this->calendarInfo = $calendarInfo;
 
-
     }
 
     /**
@@ -92,9 +91,6 @@ class Sabre_CalDAV_Calendar implements Sabre_CalDAV_ICalendar, Sabre_DAV_IProper
             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_DAVACL_Property_Principal(Sabre_DAVACL_Property_Principal::HREF,$this->calendarInfo['principaluri']);
-                break;
             default :
                 if (isset($this->calendarInfo[$prop])) $response[$prop] = $this->calendarInfo[$prop];
                 break;
@@ -110,12 +106,21 @@ class Sabre_CalDAV_Calendar implements Sabre_CalDAV_ICalendar, Sabre_DAV_IProper
      * The contained calendar objects are for example Events or Todo's.
      *
      * @param string $name
-     * @return Sabre_DAV_ICalendarObject
+     * @return Sabre_CalDAV_ICalendarObject
      */
     public function getChild($name) {
 
         $obj = $this->caldavBackend->getCalendarObject($this->calendarInfo['id'],$name);
         if (!$obj) throw new Sabre_DAV_Exception_NotFound('Calendar object not found');
+
+        $obj['acl'] = $this->getACL();
+        // Removing the irrelivant
+        foreach($obj['acl'] as $key=>$acl) {
+            if ($acl['privilege'] === '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}read-free-busy') {
+                unset($obj['acl'][$key]);
+            }
+        }
+
         return new Sabre_CalDAV_CalendarObject($this->caldavBackend,$this->calendarInfo,$obj);
 
     }
@@ -130,6 +135,13 @@ class Sabre_CalDAV_Calendar implements Sabre_CalDAV_ICalendar, Sabre_DAV_IProper
         $objs = $this->caldavBackend->getCalendarObjects($this->calendarInfo['id']);
         $children = array();
         foreach($objs as $obj) {
+            $obj['acl'] = $this->getACL();
+            // Removing the irrelivant
+            foreach($obj['acl'] as $key=>$acl) {
+                if ($acl['privilege'] === '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}read-free-busy') {
+                    unset($obj['acl'][$key]);
+                }
+            }
             $children[] = new Sabre_CalDAV_CalendarObject($this->caldavBackend,$this->calendarInfo,$obj);
         }
         return $children;
@@ -262,27 +274,27 @@ class Sabre_CalDAV_Calendar implements Sabre_CalDAV_ICalendar, Sabre_DAV_IProper
         return array(
             array(
                 'privilege' => '{DAV:}read',
-                'principal' => $this->calendarInfo['principaluri'],
+                'principal' => $this->getOwner(),
                 'protected' => true,
             ),
             array(
                 'privilege' => '{DAV:}write',
-                'principal' => $this->calendarInfo['principaluri'],
+                'principal' => $this->getOwner(),
                 'protected' => true,
             ),
             array(
                 'privilege' => '{DAV:}read',
-                'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-write',
+                'principal' => $this->getOwner() . '/calendar-proxy-write',
                 'protected' => true,
             ),
             array(
                 'privilege' => '{DAV:}write',
-                'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-write',
+                'principal' => $this->getOwner() . '/calendar-proxy-write',
                 'protected' => true,
             ),
             array(
                 'privilege' => '{DAV:}read',
-                'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-read',
+                'principal' => $this->getOwner() . '/calendar-proxy-read',
                 'protected' => true,
             ),
             array(
@@ -340,4 +352,27 @@ class Sabre_CalDAV_Calendar implements Sabre_CalDAV_ICalendar, Sabre_DAV_IProper
 
     }
 
+    /**
+     * Performs a calendar-query on the contents of this calendar.
+     *
+     * The calendar-query is defined in RFC4791 : CalDAV. Using the
+     * calendar-query it is possible for a client to request a specific set of
+     * object, based on contents of iCalendar properties, date-ranges and
+     * iCalendar component types (VTODO, VEVENT).
+     *
+     * This method should just return a list of (relative) urls that match this
+     * query.
+     *
+     * The list of filters are specified as an array. The exact array is
+     * documented by Sabre_CalDAV_CalendarQueryParser.
+     *
+     * @param array $filters
+     * @return array
+     */
+    public function calendarQuery(array $filters) {
+
+        return $this->caldavBackend->calendarQuery($this->calendarInfo['id'], $filters);
+
+    }
+
 }

3rdparty/Sabre/CalDAV/CalendarObject.php

@@ -6,13 +6,13 @@
  * @package Sabre
  * @subpackage CalDAV
  * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
  * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
  */
 class Sabre_CalDAV_CalendarObject extends Sabre_DAV_File implements Sabre_CalDAV_ICalendarObject, Sabre_DAVACL_IACL {
 
     /**
-     * Sabre_CalDAV_Backend_Abstract
+     * Sabre_CalDAV_Backend_BackendInterface
      *
      * @var array
      */
@@ -35,11 +35,11 @@ class Sabre_CalDAV_CalendarObject extends Sabre_DAV_File implements Sabre_CalDAV
     /**
      * Constructor
      *
-     * @param Sabre_CalDAV_Backend_Abstract $caldavBackend
+     * @param Sabre_CalDAV_Backend_BackendInterface $caldavBackend
      * @param array $calendarInfo
      * @param array $objectData
      */
-    public function __construct(Sabre_CalDAV_Backend_Abstract $caldavBackend,array $calendarInfo,array $objectData) {
+    public function __construct(Sabre_CalDAV_Backend_BackendInterface $caldavBackend,array $calendarInfo,array $objectData) {
 
         $this->caldavBackend = $caldavBackend;
 
@@ -85,8 +85,8 @@ class Sabre_CalDAV_CalendarObject extends Sabre_DAV_File implements Sabre_CalDAV
     /**
      * Updates the ICalendar-formatted object
      *
-     * @param string $calendarData
-     * @return void
+     * @param string|resource $calendarData
+     * @return string
      */
     public function put($calendarData) {
 
@@ -119,7 +119,7 @@ class Sabre_CalDAV_CalendarObject extends Sabre_DAV_File implements Sabre_CalDAV
      */
     public function getContentType() {
 
-        return 'text/calendar';
+        return 'text/calendar; charset=utf-8';
 
     }
 
@@ -143,7 +143,7 @@ class Sabre_CalDAV_CalendarObject extends Sabre_DAV_File implements Sabre_CalDAV
     /**
      * Returns the last modification date as a unix timestamp
      *
-     * @return time
+     * @return int
      */
     public function getLastModified() {
 
@@ -206,6 +206,12 @@ class Sabre_CalDAV_CalendarObject extends Sabre_DAV_File implements Sabre_CalDAV
      */
     public function getACL() {
 
+        // An alternative acl may be specified in the object data.
+        if (isset($this->objectData['acl'])) {
+            return $this->objectData['acl'];
+        }
+
+        // The default ACL
         return array(
             array(
                 'privilege' => '{DAV:}read',

3rdparty/Sabre/CalDAV/CalendarQueryParser.php

@@ -1,5 +1,7 @@
 <?php
 
+use Sabre\VObject;
+
 /**
  * Parses the calendar-query report request body.
  *
@@ -68,7 +70,7 @@ class Sabre_CalDAV_CalendarQueryParser {
 
         $this->xpath = new DOMXPath($dom);
         $this->xpath->registerNameSpace('cal',Sabre_CalDAV_Plugin::NS_CALDAV);
-        $this->xpath->registerNameSpace('dav','urn:DAV');
+        $this->xpath->registerNameSpace('dav','DAV:');
 
     }
 
@@ -241,12 +243,12 @@ class Sabre_CalDAV_CalendarQueryParser {
         $timeRangeNode = $timeRangeNodes->item(0);
 
         if ($start = $timeRangeNode->getAttribute('start')) {
-            $start = Sabre_VObject_DateTimeParser::parseDateTime($start);
+            $start = VObject\DateTimeParser::parseDateTime($start);
         } else {
             $start = null;
         }
         if ($end = $timeRangeNode->getAttribute('end')) {
-            $end = Sabre_VObject_DateTimeParser::parseDateTime($end);
+            $end = VObject\DateTimeParser::parseDateTime($end);
         } else {
             $end = null;
         }
@@ -274,13 +276,13 @@ class Sabre_CalDAV_CalendarQueryParser {
         if(!$start) {
             throw new Sabre_DAV_Exception_BadRequest('The "start" attribute is required for the CALDAV:expand element');
         } 
-        $start = Sabre_VObject_DateTimeParser::parseDateTime($start);
+        $start = VObject\DateTimeParser::parseDateTime($start);
 
         $end = $parentNode->getAttribute('end');
         if(!$end) {
             throw new Sabre_DAV_Exception_BadRequest('The "end" attribute is required for the CALDAV:expand element');
         } 
-        $end = Sabre_VObject_DateTimeParser::parseDateTime($end);
+        $end = VObject\DateTimeParser::parseDateTime($end);
         
         if ($end <= $start) {
             throw new Sabre_DAV_Exception_BadRequest('The end-date must be larger than the start-date in the expand element.');

3rdparty/Sabre/CalDAV/CalendarQueryValidator.php

@@ -1,5 +1,7 @@
 <?php
 
+use Sabre\VObject;
+
 /**
  * CalendarQuery Validator
  *
@@ -22,11 +24,11 @@ class Sabre_CalDAV_CalendarQueryValidator {
      *
      * The list of filters must be formatted as parsed by Sabre_CalDAV_CalendarQueryParser
      *
-     * @param Sabre_VObject_Component $vObject
+     * @param VObject\Component $vObject
      * @param array $filters
      * @return bool
      */
-    public function validate(Sabre_VObject_Component $vObject,array $filters) {
+    public function validate(VObject\Component $vObject,array $filters) {
 
         // The top level object is always a component filter.
         // We'll parse it manually, as it's pretty simple.
@@ -48,11 +50,11 @@ class Sabre_CalDAV_CalendarQueryValidator {
      * component we're checking should be specified, not the component to check
      * itself.
      *
-     * @param Sabre_VObject_Component $parent
+     * @param VObject\Component $parent
      * @param array $filters
      * @return bool
      */
-    protected function validateCompFilters(Sabre_VObject_Component $parent, array $filters) {
+    protected function validateCompFilters(VObject\Component $parent, array $filters) {
 
         foreach($filters as $filter) {
 
@@ -117,11 +119,11 @@ class Sabre_CalDAV_CalendarQueryValidator {
      * property we're checking should be specified, not the property to check
      * itself.
      *
-     * @param Sabre_VObject_Component $parent
+     * @param VObject\Component $parent
      * @param array $filters
      * @return bool
      */
-    protected function validatePropFilters(Sabre_VObject_Component $parent, array $filters) {
+    protected function validatePropFilters(VObject\Component $parent, array $filters) {
 
         foreach($filters as $filter) {
 
@@ -187,11 +189,11 @@ class Sabre_CalDAV_CalendarQueryValidator {
      * parameter we're checking should be specified, not the parameter to check
      * itself.
      *
-     * @param Sabre_VObject_Property $parent
+     * @param VObject\Property $parent
      * @param array $filters
      * @return bool
      */
-    protected function validateParamFilters(Sabre_VObject_Property $parent, array $filters) {
+    protected function validateParamFilters(VObject\Property $parent, array $filters) {
 
         foreach($filters as $filter) {
 
@@ -243,11 +245,11 @@ class Sabre_CalDAV_CalendarQueryValidator {
      * A single text-match should be specified as well as the specific property
      * or parameter we need to validate.
      *
-     * @param Sabre_VObject_Node $parent
+     * @param VObject\Node $parent
      * @param array $textMatch
      * @return bool
      */
-    protected function validateTextMatch(Sabre_VObject_Node $parent, array $textMatch) {
+    protected function validateTextMatch(VObject\Node $parent, array $textMatch) {
 
         $value = (string)$parent;
 
@@ -263,12 +265,12 @@ class Sabre_CalDAV_CalendarQueryValidator {
      * This is all based on the rules specified in rfc4791, which are quite
      * complex.
      *
-     * @param Sabre_VObject_Node $component
+     * @param VObject\Node $component
      * @param DateTime $start
      * @param DateTime $end
      * @return bool
      */
-    protected function validateTimeRange(Sabre_VObject_Node $component, $start, $end) {
+    protected function validateTimeRange(VObject\Node $component, $start, $end) {
 
         if (is_null($start)) {
             $start = new DateTime('1900-01-01');
@@ -296,7 +298,7 @@ class Sabre_CalDAV_CalendarQueryValidator {
                 if ($component->parent->name === 'VEVENT' && $component->parent->RRULE) {
 
                     // Fire up the iterator!
-                    $it = new Sabre_VObject_RecurrenceIterator($component->parent->parent, (string)$component->parent->UID);
+                    $it = new VObject\RecurrenceIterator($component->parent->parent, (string)$component->parent->UID);
                     while($it->valid()) {
                         $expandedEvent = $it->getEventObject();
 

3rdparty/Sabre/CalDAV/CalendarRootNode.php

@@ -1,14 +1,15 @@
 <?php
 
 /**
- * Users collection
+ * Calendars collection
  *
- * This object is responsible for generating a collection of users.
+ * This object is responsible for generating a list of calendar-homes for each
+ * user.
  *
  * @package Sabre
  * @subpackage CalDAV
  * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
  * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
  */
 class Sabre_CalDAV_CalendarRootNode extends Sabre_DAVACL_AbstractPrincipalCollection {
@@ -16,7 +17,7 @@ class Sabre_CalDAV_CalendarRootNode extends Sabre_DAVACL_AbstractPrincipalCollec
     /**
      * CalDAV backend
      *
-     * @var Sabre_CalDAV_Backend_Abstract
+     * @var Sabre_CalDAV_Backend_BackendInterface
      */
     protected $caldavBackend;
 
@@ -32,10 +33,10 @@ class Sabre_CalDAV_CalendarRootNode extends Sabre_DAVACL_AbstractPrincipalCollec
      *
      *
      * @param Sabre_DAVACL_IPrincipalBackend $principalBackend
-     * @param Sabre_CalDAV_Backend_Abstract $caldavBackend
+     * @param Sabre_CalDAV_Backend_BackendInterface $caldavBackend
      * @param string $principalPrefix
      */
-    public function __construct(Sabre_DAVACL_IPrincipalBackend $principalBackend,Sabre_CalDAV_Backend_Abstract $caldavBackend, $principalPrefix = 'principals') {
+    public function __construct(Sabre_DAVACL_IPrincipalBackend $principalBackend,Sabre_CalDAV_Backend_BackendInterface $caldavBackend, $principalPrefix = 'principals') {
 
         parent::__construct($principalBackend, $principalPrefix);
         $this->caldavBackend = $caldavBackend;

3rdparty/Sabre/CalDAV/Exception/InvalidComponentType.php

@@ -0,0 +1,32 @@
+<?php
+
+/**
+ * Sabre_CalDAV_Exception_InvalidComponentType
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 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_Exception_InvalidComponentType extends Sabre_DAV_Exception_Forbidden {
+
+    /**
+     * Adds in extra information in the xml response.
+     *
+     * This method adds the {CALDAV:}supported-calendar-component as defined in rfc4791
+     *
+     * @param Sabre_DAV_Server $server
+     * @param DOMElement $errorNode
+     * @return void
+     */
+    public function serialize(Sabre_DAV_Server $server,DOMElement $errorNode) {
+
+        $doc = $errorNode->ownerDocument;
+
+        $np = $doc->createElementNS(Sabre_CalDAV_Plugin::NS_CALDAV,'cal:supported-calendar-component');
+        $errorNode->appendChild($np);
+
+    }
+
+}

3rdparty/Sabre/CalDAV/ICSExportPlugin.php

@@ -1,5 +1,7 @@
 <?php
 
+use Sabre\VObject;
+
 /**
  * ICS Exporter
  *
@@ -82,7 +84,7 @@ class Sabre_CalDAV_ICSExportPlugin extends Sabre_DAV_ServerPlugin {
      */
     public function generateICS(array $nodes) {
 
-        $calendar = new Sabre_VObject_Component('vcalendar');
+        $calendar = new VObject\Component('vcalendar');
         $calendar->version = '2.0';
         if (Sabre_DAV_Server::$exposeVersion) {
             $calendar->prodid = '-//SabreDAV//SabreDAV ' . Sabre_DAV_Version::VERSION . '//EN';
@@ -103,7 +105,7 @@ class Sabre_CalDAV_ICSExportPlugin extends Sabre_DAV_ServerPlugin {
             }
             $nodeData = $node[200]['{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}calendar-data'];
 
-            $nodeComp = Sabre_VObject_Reader::read($nodeData);
+            $nodeComp = VObject\Reader::read($nodeData);
 
             foreach($nodeComp->children() as $child) {
 

3rdparty/Sabre/CalDAV/ICalendar.php

@@ -8,11 +8,28 @@
  * @package Sabre
  * @subpackage CalDAV
  * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
  * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
  */
 interface Sabre_CalDAV_ICalendar extends Sabre_DAV_ICollection {
 
-
+    /**
+     * Performs a calendar-query on the contents of this calendar.
+     *
+     * The calendar-query is defined in RFC4791 : CalDAV. Using the
+     * calendar-query it is possible for a client to request a specific set of
+     * object, based on contents of iCalendar properties, date-ranges and
+     * iCalendar component types (VTODO, VEVENT).
+     *
+     * This method should just return a list of (relative) urls that match this
+     * query.
+     *
+     * The list of filters are specified as an array. The exact array is
+     * documented by Sabre_CalDAV_CalendarQueryParser.
+     *
+     * @param array $filters
+     * @return array
+     */
+    public function calendarQuery(array $filters);
 
 }

3rdparty/Sabre/CalDAV/IShareableCalendar.php

@@ -0,0 +1,48 @@
+<?php
+
+/**
+ * This interface represents a Calendar that can be shared with other users.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+interface Sabre_CalDAV_IShareableCalendar extends Sabre_CalDAV_ICalendar {
+
+    /**
+     * Updates the list of shares.
+     *
+     * The first array is a list of people that are to be added to the
+     * calendar.
+     *
+     * Every element in the add array has the following properties:
+     *   * href - A url. Usually a mailto: address
+     *   * commonName - Usually a first and last name, or false
+     *   * summary - A description of the share, can also be false
+     *   * readOnly - A boolean value
+     *
+     * Every element in the remove array is just the address string.
+     *
+     * @param array $add
+     * @param array $remove
+     * @return void
+     */
+    function updateShares(array $add, array $remove);
+
+    /**
+     * Returns the list of people whom this calendar is shared with.
+     *
+     * Every element in this array should have the following properties:
+     *   * href - Often a mailto: address
+     *   * commonName - Optional, for example a first + last name
+     *   * status - See the Sabre_CalDAV_SharingPlugin::STATUS_ constants.
+     *   * readOnly - boolean
+     *   * summary - Optional, a description for the share
+     *
+     * @return array
+     */
+    function getShares();
+
+}

3rdparty/Sabre/CalDAV/ISharedCalendar.php

@@ -0,0 +1,22 @@
+<?php
+
+/**
+ * This interface represents a Calendar that is shared by a different user.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+interface Sabre_CalDAV_ISharedCalendar extends Sabre_CalDAV_ICalendar {
+
+    /**
+     * This method should return the url of the owners' copy of the shared
+     * calendar.
+     *
+     * @return string
+     */
+    function getSharedUrl();
+
+}

3rdparty/Sabre/CalDAV/Notifications/Collection.php

@@ -0,0 +1,169 @@
+<?php
+
+/**
+ * This node represents a list of notifications.
+ *
+ * It provides no additional functionality, but you must implement this
+ * interface to allow the Notifications plugin to mark the collection
+ * as a notifications collection.
+ *
+ * This collection should only return Sabre_CalDAV_Notifications_INode nodes as
+ * its children.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 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_Notifications_Collection extends Sabre_DAV_Collection implements Sabre_CalDAV_Notifications_ICollection, Sabre_DAVACL_IACL {
+
+    /**
+     * The notification backend
+     *
+     * @var Sabre_CalDAV_Backend_NotificationSupport
+     */
+    protected $caldavBackend;
+
+    /**
+     * Principal uri
+     *
+     * @var string
+     */
+    protected $principalUri;
+
+    /**
+     * Constructor
+     *
+     * @param Sabre_CalDAV_Backend_NotificationSupport $caldavBackend
+     * @param string $principalUri
+     */
+    public function __construct(Sabre_CalDAV_Backend_NotificationSupport $caldavBackend, $principalUri) {
+
+        $this->caldavBackend = $caldavBackend;
+        $this->principalUri = $principalUri;
+
+    }
+
+    /**
+     * Returns all notifications for a principal
+     *
+     * @return array
+     */
+    public function getChildren() {
+
+        $children = array();
+        $notifications = $this->caldavBackend->getNotificationsForPrincipal($this->principalUri);
+
+        foreach($notifications as $notification) {
+
+            $children[] = new Sabre_CalDAV_Notifications_Node(
+                $this->caldavBackend,
+                $this->principalUri,
+                $notification
+            );
+        }
+
+        return $children;
+
+    }
+
+    /**
+     * Returns the name of this object
+     *
+     * @return string
+     */
+    public function getName() {
+
+        return 'notifications';
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    public function getOwner() {
+
+        return $this->principalUri;
+
+    }
+
+    /**
+     * Returns a group principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    public function getGroup() {
+
+        return null;
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    public function getACL() {
+
+        return array(
+            array(
+                'principal' => $this->getOwner(),
+                'privilege' => '{DAV:}read',
+                'protected' => true,
+            ),
+            array(
+                'principal' => $this->getOwner(),
+                'privilege' => '{DAV:}write',
+                'protected' => true,
+            )
+        );
+
+    }
+
+    /**
+     * Updates the ACL
+     *
+     * This method will receive a list of new ACE's as an array argument.
+     *
+     * @param array $acl
+     * @return void
+     */
+    public function setACL(array $acl) {
+
+        throw new Sabre_DAV_Exception_NotImplemented('Updating ACLs is not implemented here');
+
+    }
+
+    /**
+     * Returns the list of supported privileges for this node.
+     *
+     * The returned data structure is a list of nested privileges.
+     * See Sabre_DAVACL_Plugin::getDefaultSupportedPrivilegeSet for a simple
+     * standard structure.
+     *
+     * If null is returned from this method, the default privilege set is used,
+     * which is fine for most common usecases.
+     *
+     * @return array|null
+     */
+    public function getSupportedPrivilegeSet() {
+
+        return null;
+
+    }
+
+}

3rdparty/Sabre/CalDAV/Notifications/ICollection.php

@@ -0,0 +1,22 @@
+<?php
+
+/**
+ * This node represents a list of notifications.
+ *
+ * It provides no additional functionality, but you must implement this
+ * interface to allow the Notifications plugin to mark the collection
+ * as a notifications collection.
+ *
+ * This collection should only return Sabre_CalDAV_Notifications_INode nodes as
+ * its children.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+interface Sabre_CalDAV_Notifications_ICollection extends Sabre_DAV_ICollection {
+
+
+}

3rdparty/Sabre/CalDAV/Notifications/INode.php

@@ -0,0 +1,38 @@
+<?php
+
+/**
+ * This node represents a single notification.
+ *
+ * The signature is mostly identical to that of Sabre_DAV_IFile, but the get() method
+ * MUST return an xml document that matches the requirements of the
+ * 'caldav-notifications.txt' spec.
+ *
+ * For a complete example, check out the Notification class, which contains
+ * some helper functions.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+interface Sabre_CalDAV_Notifications_INode {
+
+    /**
+     * This method must return an xml element, using the
+     * Sabre_CalDAV_Notifications_INotificationType classes.
+     *
+     * @return Sabre_DAVNotification_INotificationType
+     */
+    function getNotificationType();
+
+    /**
+     * Returns the etag for the notification.
+     *
+     * The etag must be surrounded by litteral double-quotes.
+     *
+     * @return string
+     */
+    function getETag();
+
+}

3rdparty/Sabre/CalDAV/Notifications/INotificationType.php

@@ -0,0 +1,43 @@
+<?php
+
+/**
+ * This interface reflects a single notification type.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+interface Sabre_CalDAV_Notifications_INotificationType extends Sabre_DAV_PropertyInterface {
+
+    /**
+     * This method serializes the entire notification, as it is used in the
+     * response body.
+     *
+     * @param Sabre_DAV_Server $server
+     * @param DOMElement $node
+     * @return void
+     */
+    function serializeBody(Sabre_DAV_Server $server, \DOMElement $node);
+
+    /**
+     * Returns a unique id for this notification
+     *
+     * This is just the base url. This should generally be some kind of unique
+     * id.
+     *
+     * @return string
+     */
+    function getId();
+
+    /**
+     * Returns the ETag for this notification.
+     *
+     * The ETag must be surrounded by literal double-quotes.
+     *
+     * @return string
+     */
+    function getETag();
+
+}

3rdparty/Sabre/CalDAV/Notifications/Node.php

@@ -0,0 +1,188 @@
+<?php
+
+/**
+ * This node represents a single notification.
+ *
+ * The signature is mostly identical to that of Sabre_DAV_IFile, but the get() method
+ * MUST return an xml document that matches the requirements of the
+ * 'caldav-notifications.txt' spec.
+
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 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_Notifications_Node extends Sabre_DAV_File implements Sabre_CalDAV_Notifications_INode, Sabre_DAVACL_IACL {
+
+    /**
+     * The notification backend
+     *
+     * @var Sabre_CalDAV_Backend_NotificationSupport
+     */
+    protected $caldavBackend;
+
+    /**
+     * The actual notification
+     *
+     * @var Sabre_CalDAV_Notifications_INotificationType
+     */
+    protected $notification;
+
+    /**
+     * Owner principal of the notification
+     *
+     * @var string
+     */
+    protected $principalUri;
+
+    /**
+     * Constructor
+     *
+     * @param Sabre_CalDAV_Backend_NotificationSupport $caldavBackend
+     * @param string $principalUri
+     * @param Sabre_CalDAV_Notifications_INotificationType $notification
+     */
+    public function __construct(Sabre_CalDAV_Backend_NotificationSupport $caldavBackend, $principalUri, Sabre_CalDAV_Notifications_INotificationType $notification) {
+
+        $this->caldavBackend = $caldavBackend;
+        $this->principalUri = $principalUri;
+        $this->notification = $notification;
+
+    }
+
+    /**
+     * Returns the path name for this notification
+     *
+     * @return id
+     */
+    public function getName() {
+
+        return $this->notification->getId() . '.xml';
+
+    }
+
+    /**
+     * Returns the etag for the notification.
+     *
+     * The etag must be surrounded by litteral double-quotes.
+     *
+     * @return string
+     */
+    public function getETag() {
+
+        return $this->notification->getETag();
+
+    }
+
+    /**
+     * This method must return an xml element, using the
+     * Sabre_CalDAV_Notifications_INotificationType classes.
+     *
+     * @return Sabre_DAVNotification_INotificationType
+     */
+    public function getNotificationType() {
+
+        return $this->notification;
+
+    }
+
+    /**
+     * Deletes this notification
+     *
+     * @return void
+     */
+    public function delete() {
+
+        $this->caldavBackend->deleteNotification($this->getOwner(), $this->notification);
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    public function getOwner() {
+
+        return $this->principalUri;
+
+    }
+
+    /**
+     * Returns a group principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    public function getGroup() {
+
+        return null;
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    public function getACL() {
+
+        return array(
+            array(
+                'principal' => $this->getOwner(),
+                'privilege' => '{DAV:}read',
+                'protected' => true,
+            ),
+            array(
+                'principal' => $this->getOwner(),
+                'privilege' => '{DAV:}write',
+                'protected' => true,
+            )
+        );
+
+    }
+
+    /**
+     * Updates the ACL
+     *
+     * This method will receive a list of new ACE's as an array argument.
+     *
+     * @param array $acl
+     * @return void
+     */
+    public function setACL(array $acl) {
+
+        throw new Sabre_DAV_Exception_NotImplemented('Updating ACLs is not implemented here');
+
+    }
+
+    /**
+     * Returns the list of supported privileges for this node.
+     *
+     * The returned data structure is a list of nested privileges.
+     * See Sabre_DAVACL_Plugin::getDefaultSupportedPrivilegeSet for a simple
+     * standard structure.
+     *
+     * If null is returned from this method, the default privilege set is used,
+     * which is fine for most common usecases.
+     *
+     * @return array|null
+     */
+    public function getSupportedPrivilegeSet() {
+
+        return null;
+
+    }
+
+}

3rdparty/Sabre/CalDAV/Notifications/Notification/Invite.php

@@ -0,0 +1,276 @@
+<?php
+
+use Sabre_CalDAV_SharingPlugin as SharingPlugin;
+
+/**
+ * This class represents the cs:invite-notification notification element.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 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_Notifications_Notification_Invite extends Sabre_DAV_Property implements Sabre_CalDAV_Notifications_INotificationType {
+
+    /**
+     * A unique id for the message
+     *
+     * @var string
+     */
+    protected $id;
+
+    /**
+     * Timestamp of the notification
+     *
+     * @var DateTime
+     */
+    protected $dtStamp;
+
+    /**
+     * A url to the recipient of the notification. This can be an email
+     * address (mailto:), or a principal url.
+     *
+     * @var string
+     */
+    protected $href;
+
+    /**
+     * The type of message, see the SharingPlugin::STATUS_* constants.
+     *
+     * @var int
+     */
+    protected $type;
+
+    /**
+     * True if access to a calendar is read-only.
+     *
+     * @var bool
+     */
+    protected $readOnly;
+
+    /**
+     * A url to the shared calendar.
+     *
+     * @var string
+     */
+    protected $hostUrl;
+
+    /**
+     * Url to the sharer of the calendar
+     *
+     * @var string
+     */
+    protected $organizer;
+
+    /**
+     * The name of the sharer.
+     *
+     * @var string
+     */
+    protected $commonName;
+
+    /**
+     * A description of the share request
+     *
+     * @var string
+     */
+    protected $summary;
+
+    /**
+     * The Etag for the notification
+     *
+     * @var string
+     */
+    protected $etag;
+
+    /**
+     * The list of supported components
+     *
+     * @var Sabre_CalDAV_Property_SupportedCalendarComponentSet
+     */
+    protected $supportedComponents;
+
+    /**
+     * Creates the Invite notification.
+     *
+     * This constructor receives an array with the following elements:
+     *
+     *   * id           - A unique id
+     *   * etag         - The etag
+     *   * dtStamp      - A DateTime object with a timestamp for the notification.
+     *   * type         - The type of notification, see SharingPlugin::STATUS_*
+     *                    constants for details.
+     *   * readOnly     - This must be set to true, if this is an invite for
+     *                    read-only access to a calendar.
+     *   * hostUrl      - A url to the shared calendar.
+     *   * organizer    - Url to the sharer principal.
+     *   * commonName   - The real name of the sharer (optional).
+     *   * summary      - Description of the share, can be the same as the
+     *                    calendar, but may also be modified (optional).
+     *   * supportedComponents - An instance of
+     *                    Sabre_CalDAV_Property_SupportedCalendarComponentSet.
+     *                    This allows the client to determine which components
+     *                    will be supported in the shared calendar. This is
+     *                    also optional.
+     *
+     * @param array $values All the options
+     */
+    public function __construct(array $values) {
+
+        $required = array(
+            'id',
+            'etag',
+            'href',
+            'dtStamp',
+            'type',
+            'readOnly',
+            'hostUrl',
+            'organizer',
+        );
+        foreach($required as $item) {
+            if (!isset($values[$item])) {
+                throw new InvalidArgumentException($item . ' is a required constructor option');
+            }
+        }
+
+        foreach($values as $key=>$value) {
+            if (!property_exists($this, $key)) {
+                throw new InvalidArgumentException('Unknown option: ' . $key);
+            }
+            $this->$key = $value;
+        }
+
+    }
+
+    /**
+     * Serializes the notification as a single property.
+     *
+     * You should usually just encode the single top-level element of the
+     * notification.
+     *
+     * @param Sabre_DAV_Server $server
+     * @param DOMElement $node
+     * @return void
+     */
+    public function serialize(Sabre_DAV_Server $server, \DOMElement $node) {
+
+        $prop = $node->ownerDocument->createElement('cs:invite-notification');
+        $node->appendChild($prop);
+
+    }
+
+    /**
+     * This method serializes the entire notification, as it is used in the
+     * response body.
+     *
+     * @param Sabre_DAV_Server $server
+     * @param DOMElement $node
+     * @return void
+     */
+    public function serializeBody(Sabre_DAV_Server $server, \DOMElement $node) {
+
+        $doc = $node->ownerDocument;
+
+        $dt = $doc->createElement('cs:dtstamp');
+        $this->dtStamp->setTimezone(new \DateTimezone('GMT'));
+        $dt->appendChild($doc->createTextNode($this->dtStamp->format('Ymd\\THis\\Z')));
+        $node->appendChild($dt);
+
+        $prop = $doc->createElement('cs:invite-notification');
+        $node->appendChild($prop);
+
+        $uid = $doc->createElement('cs:uid');
+        $uid->appendChild( $doc->createTextNode($this->id) );
+        $prop->appendChild($uid);
+
+        $href = $doc->createElement('d:href');
+        $href->appendChild( $doc->createTextNode( $this->href ) );
+        $prop->appendChild($href);
+
+        $nodeName = null;
+        switch($this->type) {
+
+            case SharingPlugin::STATUS_ACCEPTED :
+                $nodeName = 'cs:invite-accepted';
+                break;
+            case SharingPlugin::STATUS_DECLINED :
+                $nodeName = 'cs:invite-declined';
+                break;
+            case SharingPlugin::STATUS_DELETED :
+                $nodeName = 'cs:invite-deleted';
+                break;
+            case SharingPlugin::STATUS_NORESPONSE :
+                $nodeName = 'cs:invite-noresponse';
+                break;
+
+        }
+        $prop->appendChild(
+            $doc->createElement($nodeName)
+        );
+        $hostHref = $doc->createElement('d:href', $server->getBaseUri() . $this->hostUrl);
+        $hostUrl  = $doc->createElement('cs:hosturl');
+        $hostUrl->appendChild($hostHref);
+        $prop->appendChild($hostUrl);
+
+        $access = $doc->createElement('cs:access');
+        if ($this->readOnly) {
+            $access->appendChild($doc->createElement('cs:read'));
+        } else {
+            $access->appendChild($doc->createElement('cs:read-write'));
+        }
+        $prop->appendChild($access);
+
+        $organizerHref = $doc->createElement('d:href', $server->getBaseUri() . $this->organizer);
+        $organizerUrl  = $doc->createElement('cs:organizer');
+        if ($this->commonName) {
+            $commonName = $doc->createElement('cs:common-name');
+            $commonName->appendChild($doc->createTextNode($this->commonName));
+            $organizerUrl->appendChild($commonName);
+        }
+        $organizerUrl->appendChild($organizerHref);
+        $prop->appendChild($organizerUrl);
+
+        if ($this->summary) {
+            $summary = $doc->createElement('cs:summary');
+            $summary->appendChild($doc->createTextNode($this->summary));
+            $prop->appendChild($summary);
+        }
+        if ($this->supportedComponents) {
+
+            $xcomp = $doc->createElement('cal:supported-calendar-component-set');
+            $this->supportedComponents->serialize($server, $xcomp);
+            $prop->appendChild($xcomp);
+
+        }
+
+    }
+
+    /**
+     * Returns a unique id for this notification
+     *
+     * This is just the base url. This should generally be some kind of unique
+     * id.
+     *
+     * @return string
+     */
+    public function getId() {
+
+        return $this->id;
+
+    }
+
+    /**
+     * Returns the ETag for this notification.
+     *
+     * The ETag must be surrounded by literal double-quotes.
+     *
+     * @return string
+     */
+    public function getETag() {
+
+        return $this->etag;
+
+    }
+
+}

3rdparty/Sabre/CalDAV/Notifications/Notification/InviteReply.php

@@ -0,0 +1,216 @@
+<?php
+
+use Sabre_CalDAV_SharingPlugin as SharingPlugin;
+
+/**
+ * This class represents the cs:invite-reply notification element.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 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_Notifications_Notification_InviteReply extends Sabre_DAV_Property implements Sabre_CalDAV_Notifications_INotificationType {
+
+    /**
+     * A unique id for the message
+     *
+     * @var string
+     */
+    protected $id;
+
+    /**
+     * Timestamp of the notification
+     *
+     * @var DateTime
+     */
+    protected $dtStamp;
+
+    /**
+     * The unique id of the notification this was a reply to.
+     *
+     * @var string
+     */
+    protected $inReplyTo;
+
+    /**
+     * A url to the recipient of the original (!) notification.
+     *
+     * @var string
+     */
+    protected $href;
+
+    /**
+     * The type of message, see the SharingPlugin::STATUS_ constants.
+     *
+     * @var int
+     */
+    protected $type;
+
+    /**
+     * A url to the shared calendar.
+     *
+     * @var string
+     */
+    protected $hostUrl;
+
+    /**
+     * A description of the share request
+     *
+     * @var string
+     */
+    protected $summary;
+
+    /**
+     * Notification Etag
+     *
+     * @var string
+     */
+    protected $etag;
+
+    /**
+     * Creates the Invite Reply Notification.
+     *
+     * This constructor receives an array with the following elements:
+     *
+     *   * id           - A unique id
+     *   * etag         - The etag
+     *   * dtStamp      - A DateTime object with a timestamp for the notification.
+     *   * inReplyTo    - This should refer to the 'id' of the notification
+     *                    this is a reply to.
+     *   * type         - The type of notification, see SharingPlugin::STATUS_*
+     *                    constants for details.
+     *   * hostUrl      - A url to the shared calendar.
+     *   * summary      - Description of the share, can be the same as the
+     *                    calendar, but may also be modified (optional).
+     */
+    public function __construct(array $values) {
+
+        $required = array(
+            'id',
+            'etag',
+            'href',
+            'dtStamp',
+            'inReplyTo',
+            'type',
+            'hostUrl',
+        );
+        foreach($required as $item) {
+            if (!isset($values[$item])) {
+                throw new InvalidArgumentException($item . ' is a required constructor option');
+            }
+        }
+
+        foreach($values as $key=>$value) {
+            if (!property_exists($this, $key)) {
+                throw new InvalidArgumentException('Unknown option: ' . $key);
+            }
+            $this->$key = $value;
+        }
+
+    }
+
+    /**
+     * Serializes the notification as a single property.
+     *
+     * You should usually just encode the single top-level element of the
+     * notification.
+     *
+     * @param Sabre_DAV_Server $server
+     * @param DOMElement $node
+     * @return void
+     */
+    public function serialize(Sabre_DAV_Server $server, \DOMElement $node) {
+
+        $prop = $node->ownerDocument->createElement('cs:invite-reply');
+        $node->appendChild($prop);
+
+    }
+
+    /**
+     * This method serializes the entire notification, as it is used in the
+     * response body.
+     *
+     * @param Sabre_DAV_Server $server
+     * @param DOMElement $node
+     * @return void
+     */
+    public function serializeBody(Sabre_DAV_Server $server, \DOMElement $node) {
+
+        $doc = $node->ownerDocument;
+
+        $dt = $doc->createElement('cs:dtstamp');
+        $this->dtStamp->setTimezone(new \DateTimezone('GMT'));
+        $dt->appendChild($doc->createTextNode($this->dtStamp->format('Ymd\\THis\\Z')));
+        $node->appendChild($dt);
+
+        $prop = $doc->createElement('cs:invite-reply');
+        $node->appendChild($prop);
+
+        $uid = $doc->createElement('cs:uid');
+        $uid->appendChild($doc->createTextNode($this->id));
+        $prop->appendChild($uid);
+
+        $inReplyTo = $doc->createElement('cs:in-reply-to');
+        $inReplyTo->appendChild( $doc->createTextNode($this->inReplyTo) );
+        $prop->appendChild($inReplyTo);
+
+        $href = $doc->createElement('d:href');
+        $href->appendChild( $doc->createTextNode($this->href) );
+        $prop->appendChild($href);
+
+        $nodeName = null;
+        switch($this->type) {
+
+            case SharingPlugin::STATUS_ACCEPTED :
+                $nodeName = 'cs:invite-accepted';
+                break;
+            case SharingPlugin::STATUS_DECLINED :
+                $nodeName = 'cs:invite-declined';
+                break;
+
+        }
+        $prop->appendChild(
+            $doc->createElement($nodeName)
+        );
+        $hostHref = $doc->createElement('d:href', $server->getBaseUri() . $this->hostUrl);
+        $hostUrl  = $doc->createElement('cs:hosturl');
+        $hostUrl->appendChild($hostHref);
+        $prop->appendChild($hostUrl);
+
+        if ($this->summary) {
+            $summary = $doc->createElement('cs:summary');
+            $summary->appendChild($doc->createTextNode($this->summary));
+            $prop->appendChild($summary);
+        }
+
+    }
+
+    /**
+     * Returns a unique id for this notification
+     *
+     * This is just the base url. This should generally be some kind of unique
+     * id.
+     *
+     * @return string
+     */
+    public function getId() {
+
+        return $this->id;
+
+    }
+
+    /**
+     * Returns the ETag for this notification.
+     *
+     * The ETag must be surrounded by literal double-quotes.
+     *
+     * @return string
+     */
+    public function getETag() {
+
+        return $this->etag;
+
+    }
+}

3rdparty/Sabre/CalDAV/Notifications/Notification/SystemStatus.php

@@ -0,0 +1,179 @@
+<?php
+
+/**
+ * SystemStatus notification
+ *
+ * This notification can be used to indicate to the user that the system is
+ * down.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 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_Notifications_Notification_SystemStatus extends Sabre_DAV_Property implements Sabre_CalDAV_Notifications_INotificationType {
+
+    const TYPE_LOW = 1;
+    const TYPE_MEDIUM = 2;
+    const TYPE_HIGH = 3;
+
+    /**
+     * A unique id
+     *
+     * @var string
+     */
+    protected $id;
+
+    /**
+     * The type of alert. This should be one of the TYPE_ constants.
+     *
+     * @var int
+     */
+    protected $type;
+
+    /**
+     * A human-readable description of the problem.
+     *
+     * @var string
+     */
+    protected $description;
+
+    /**
+     * A url to a website with more information for the user.
+     *
+     * @var string
+     */
+    protected $href;
+
+    /**
+     * Notification Etag
+     *
+     * @var string
+     */
+    protected $etag;
+
+    /**
+     * Creates the notification.
+     *
+     * Some kind of unique id should be provided. This is used to generate a
+     * url.
+     *
+     * @param string $id
+     * @param string $etag
+     * @param int $type
+     * @param string $description
+     * @param string $href
+     */
+    public function __construct($id, $etag, $type = self::TYPE_HIGH, $description = null, $href = null) {
+
+        $this->id = $id;
+        $this->type = $type;
+        $this->description = $description;
+        $this->href = $href;
+        $this->etag = $etag;
+
+    }
+
+    /**
+     * Serializes the notification as a single property.
+     *
+     * You should usually just encode the single top-level element of the
+     * notification.
+     *
+     * @param Sabre_DAV_Server $server
+     * @param DOMElement $node
+     * @return void
+     */
+    public function serialize(Sabre_DAV_Server $server, \DOMElement $node) {
+
+        switch($this->type) {
+            case self::TYPE_LOW :
+                $type = 'low';
+                break;
+            case self::TYPE_MEDIUM :
+                $type = 'medium';
+                break;
+            default :
+            case self::TYPE_HIGH :
+                $type = 'high';
+                break;
+        }
+
+        $prop = $node->ownerDocument->createElement('cs:systemstatus');
+        $prop->setAttribute('type', $type);
+
+        $node->appendChild($prop);
+
+    }
+
+    /**
+     * This method serializes the entire notification, as it is used in the
+     * response body.
+     *
+     * @param Sabre_DAV_Server $server
+     * @param DOMElement $node
+     * @return void
+     */
+    public function serializeBody(Sabre_DAV_Server $server, \DOMElement $node) {
+
+        switch($this->type) {
+            case self::TYPE_LOW :
+                $type = 'low';
+                break;
+            case self::TYPE_MEDIUM :
+                $type = 'medium';
+                break;
+            default :
+            case self::TYPE_HIGH :
+                $type = 'high';
+                break;
+        }
+
+        $prop = $node->ownerDocument->createElement('cs:systemstatus');
+        $prop->setAttribute('type', $type);
+
+        if ($this->description) {
+            $text = $node->ownerDocument->createTextNode($this->description);
+            $desc = $node->ownerDocument->createElement('cs:description');
+            $desc->appendChild($text);
+            $prop->appendChild($desc);
+        }
+        if ($this->href) {
+            $text = $node->ownerDocument->createTextNode($this->href);
+            $href = $node->ownerDocument->createElement('d:href');
+            $href->appendChild($text);
+            $prop->appendChild($href);
+        }
+
+        $node->appendChild($prop);
+
+    }
+
+    /**
+     * Returns a unique id for this notification
+     *
+     * This is just the base url. This should generally be some kind of unique
+     * id.
+     *
+     * @return string
+     */
+    public function getId() {
+
+        return $this->id;
+
+    }
+
+    /*
+     * Returns the ETag for this notification.
+     *
+     * The ETag must be surrounded by literal double-quotes.
+     *
+     * @return string
+     */
+    public function getETag() {
+
+        return $this->etag;
+
+    }
+}

3rdparty/Sabre/CalDAV/Plugin.php

@@ -1,5 +1,7 @@
 <?php
 
+use Sabre\VObject;
+
 /**
  * CalDAV plugin
  *
@@ -24,16 +26,6 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
      */
     const NS_CALENDARSERVER = 'http://calendarserver.org/ns/';
 
-    /**
-     * The following constants are used to differentiate
-     * the various filters for the calendar-query report
-     */
-    const FILTER_COMPFILTER   = 1;
-    const FILTER_TIMERANGE    = 3;
-    const FILTER_PROPFILTER   = 4;
-    const FILTER_PARAMFILTER  = 5;
-    const FILTER_TEXTMATCH    = 6;
-
     /**
      * The hardcoded root for calendar objects. It is unfortunate
      * that we're stuck with it, but it will have to do for now
@@ -172,16 +164,19 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
         $server->subscribeEvent('onBrowserPostAction', array($this,'browserPostAction'));
         $server->subscribeEvent('beforeWriteContent', array($this, 'beforeWriteContent'));
         $server->subscribeEvent('beforeCreateFile', array($this, 'beforeCreateFile'));
+        $server->subscribeEvent('beforeMethod', array($this,'beforeMethod'));
 
         $server->xmlNamespaces[self::NS_CALDAV] = 'cal';
         $server->xmlNamespaces[self::NS_CALENDARSERVER] = 'cs';
 
         $server->propertyMap['{' . self::NS_CALDAV . '}supported-calendar-component-set'] = 'Sabre_CalDAV_Property_SupportedCalendarComponentSet';
+        $server->propertyMap['{' . self::NS_CALDAV . '}schedule-calendar-transp'] = 'Sabre_CalDAV_Property_ScheduleCalendarTransp';
 
         $server->resourceTypeMapping['Sabre_CalDAV_ICalendar'] = '{urn:ietf:params:xml:ns:caldav}calendar';
         $server->resourceTypeMapping['Sabre_CalDAV_Schedule_IOutbox'] = '{urn:ietf:params:xml:ns:caldav}schedule-outbox';
         $server->resourceTypeMapping['Sabre_CalDAV_Principal_ProxyRead'] = '{http://calendarserver.org/ns/}calendar-proxy-read';
         $server->resourceTypeMapping['Sabre_CalDAV_Principal_ProxyWrite'] = '{http://calendarserver.org/ns/}calendar-proxy-write';
+        $server->resourceTypeMapping['Sabre_CalDAV_Notifications_ICollection'] = '{' . self::NS_CALENDARSERVER . '}notification';
 
         array_push($server->protectedProperties,
 
@@ -205,7 +200,9 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
             // CalendarServer extensions
             '{' . self::NS_CALENDARSERVER . '}getctag',
             '{' . self::NS_CALENDARSERVER . '}calendar-proxy-read-for',
-            '{' . self::NS_CALENDARSERVER . '}calendar-proxy-write-for'
+            '{' . self::NS_CALENDARSERVER . '}calendar-proxy-write-for',
+            '{' . self::NS_CALENDARSERVER . '}notification-URL',
+            '{' . self::NS_CALENDARSERVER . '}notificationtype'
 
         );
     }
@@ -226,6 +223,13 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
                 // unknownMethod event.
                 return false;
             case 'POST' :
+
+                // Checking if this is a text/calendar content type
+                $contentType = $this->server->httpRequest->getHeader('Content-Type');
+                if (strpos($contentType, 'text/calendar')!==0) {
+                    return;
+                }
+
                 // Checking if we're talking to an outbox
                 try {
                     $node = $this->server->tree->getNodeForPath($uri);
@@ -235,7 +239,7 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
                 if (!$node instanceof Sabre_CalDAV_Schedule_IOutbox)
                     return;
 
-                $this->outboxRequest($node);
+                $this->outboxRequest($node, $uri);
                 return false;
 
         }
@@ -348,7 +352,7 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
             if (in_array($calProp,$requestedProperties)) {
 
                 $addresses = $node->getAlternateUriSet();
-                $addresses[] = $this->server->getBaseUri() . $node->getPrincipalUrl();
+                $addresses[] = $this->server->getBaseUri() . $node->getPrincipalUrl() . '/';
                 unset($requestedProperties[$calProp]);
                 $returnedProperties[200][$calProp] = new Sabre_DAV_Property_HrefList($addresses, false);
 
@@ -390,8 +394,31 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
 
             }
 
+            // notification-URL property
+            $notificationUrl = '{' . self::NS_CALENDARSERVER . '}notification-URL';
+            if (($index = array_search($notificationUrl, $requestedProperties)) !== false) {
+                $principalId = $node->getName();
+                $calendarHomePath = 'calendars/' . $principalId . '/notifications/';
+                unset($requestedProperties[$index]);
+                $returnedProperties[200][$notificationUrl] = new Sabre_DAV_Property_Href($calendarHomePath);
+            }
+
         } // instanceof IPrincipal
 
+        if ($node instanceof Sabre_CalDAV_Notifications_INode) {
+
+            $propertyName = '{' . self::NS_CALENDARSERVER . '}notificationtype';
+            if (($index = array_search($propertyName, $requestedProperties)) !== false) {
+
+                $returnedProperties[200][$propertyName] =
+                    $node->getNotificationType();
+
+                unset($requestedProperties[$index]);
+
+            }
+
+        } // instanceof Notifications_INode
+
 
         if ($node instanceof Sabre_CalDAV_ICalendarObject) {
             // The calendar-data property is not supposed to be a 'real'
@@ -424,11 +451,11 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
     public function calendarMultiGetReport($dom) {
 
         $properties = array_keys(Sabre_DAV_XMLUtil::parseProperties($dom->firstChild));
-        $hrefElems = $dom->getElementsByTagNameNS('urn:DAV','href');
+        $hrefElems = $dom->getElementsByTagNameNS('DAV:','href');
 
         $xpath = new DOMXPath($dom);
         $xpath->registerNameSpace('cal',Sabre_CalDAV_Plugin::NS_CALDAV);
-        $xpath->registerNameSpace('dav','urn:DAV');
+        $xpath->registerNameSpace('dav','DAV:');
 
         $expand = $xpath->query('/cal:calendar-multiget/dav:prop/cal:calendar-data/cal:expand');
         if ($expand->length>0) {
@@ -438,8 +465,8 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
             if(!$start || !$end) {
                 throw new Sabre_DAV_Exception_BadRequest('The "start" and "end" attributes are required for the CALDAV:expand element');
             }
-            $start = Sabre_VObject_DateTimeParser::parseDateTime($start);
-            $end = Sabre_VObject_DateTimeParser::parseDateTime($end);
+            $start = VObject\DateTimeParser::parseDateTime($start);
+            $end = VObject\DateTimeParser::parseDateTime($end);
 
             if ($end <= $start) {
                 throw new Sabre_DAV_Exception_BadRequest('The end-date must be larger than the start-date in the expand element.');
@@ -458,7 +485,7 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
             list($objProps) = $this->server->getPropertiesForPath($uri,$properties);
 
             if ($expand && isset($objProps[200]['{' . self::NS_CALDAV . '}calendar-data'])) {
-                $vObject = Sabre_VObject_Reader::read($objProps[200]['{' . self::NS_CALDAV . '}calendar-data']);
+                $vObject = VObject\Reader::read($objProps[200]['{' . self::NS_CALDAV . '}calendar-data']);
                 $vObject->expand($start, $end);
                 $objProps[200]['{' . self::NS_CALDAV . '}calendar-data'] = $vObject->serialize();
             }
@@ -467,9 +494,12 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
 
         }
 
+        $prefer = $this->server->getHTTPPRefer();
+
         $this->server->httpResponse->sendStatus(207);
         $this->server->httpResponse->setHeader('Content-Type','application/xml; charset=utf-8');
-        $this->server->httpResponse->sendBody($this->server->generateMultiStatus($propertyList));
+        $this->server->httpResponse->setHeader('Vary','Brief,Prefer');
+        $this->server->httpResponse->sendBody($this->server->generateMultiStatus($propertyList, $prefer['return-minimal']));
 
     }
 
@@ -487,54 +517,95 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
         $parser = new Sabre_CalDAV_CalendarQueryParser($dom);
         $parser->parse();
 
-        $requestedCalendarData = true;
-        $requestedProperties = $parser->requestedProperties;
+        $node = $this->server->tree->getNodeForPath($this->server->getRequestUri());
+        $depth = $this->server->getHTTPDepth(0);
 
-        if (!in_array('{urn:ietf:params:xml:ns:caldav}calendar-data', $requestedProperties)) {
+        // The default result is an empty array
+        $result = array();
 
-            // We always retrieve calendar-data, as we need it for filtering.
-            $requestedProperties[] = '{urn:ietf:params:xml:ns:caldav}calendar-data';
+        // The calendarobject was requested directly. In this case we handle
+        // this locally.
+        if ($depth == 0 && $node instanceof Sabre_CalDAV_ICalendarObject) {
 
-            // If calendar-data wasn't explicitly requested, we need to remove
-            // it after processing.
-            $requestedCalendarData = false;
-        }
+            $requestedCalendarData = true;
+            $requestedProperties = $parser->requestedProperties;
 
-        // These are the list of nodes that potentially match the requirement
-        $candidateNodes = $this->server->getPropertiesForPath(
-            $this->server->getRequestUri(),
-            $requestedProperties,
-            $this->server->getHTTPDepth(0)
-        );
+            if (!in_array('{urn:ietf:params:xml:ns:caldav}calendar-data', $requestedProperties)) {
 
-        $verifiedNodes = array();
+                // We always retrieve calendar-data, as we need it for filtering.
+                $requestedProperties[] = '{urn:ietf:params:xml:ns:caldav}calendar-data';
 
-        $validator = new Sabre_CalDAV_CalendarQueryValidator();
+                // If calendar-data wasn't explicitly requested, we need to remove
+                // it after processing.
+                $requestedCalendarData = false;
+            }
 
-        foreach($candidateNodes as $node) {
+            $properties = $this->server->getPropertiesForPath(
+                $this->server->getRequestUri(),
+                $requestedProperties,
+                0
+            );
 
-            // If the node didn't have a calendar-data property, it must not be a calendar object
-            if (!isset($node[200]['{urn:ietf:params:xml:ns:caldav}calendar-data']))
-                continue;
+            // This array should have only 1 element, the first calendar
+            // object.
+            $properties = current($properties);
 
-            $vObject = Sabre_VObject_Reader::read($node[200]['{urn:ietf:params:xml:ns:caldav}calendar-data']);
-            if ($validator->validate($vObject,$parser->filters)) {
+            // If there wasn't any calendar-data returned somehow, we ignore
+            // this.
+            if (isset($properties[200]['{urn:ietf:params:xml:ns:caldav}calendar-data'])) {
+
+                $validator = new Sabre_CalDAV_CalendarQueryValidator();
+                $vObject = VObject\Reader::read($properties[200]['{urn:ietf:params:xml:ns:caldav}calendar-data']);
+                if ($validator->validate($vObject,$parser->filters)) {
+
+                    // If the client didn't require the calendar-data property,
+                    // we won't give it back.
+                    if (!$requestedCalendarData) {
+                        unset($properties[200]['{urn:ietf:params:xml:ns:caldav}calendar-data']);
+                    } else {
+                        if ($parser->expand) {
+                            $vObject->expand($parser->expand['start'], $parser->expand['end']);
+                            $properties[200]['{' . self::NS_CALDAV . '}calendar-data'] = $vObject->serialize();
+                        }
+                    }
+
+                    $result = array($properties);
 
-                if (!$requestedCalendarData) {
-                    unset($node[200]['{urn:ietf:params:xml:ns:caldav}calendar-data']);
                 }
+
+            }
+
+        }
+        // If we're dealing with a calendar, the calendar itself is responsible
+        // for the calendar-query.
+        if ($node instanceof Sabre_CalDAV_ICalendar && $depth = 1) {
+
+            $nodePaths = $node->calendarQuery($parser->filters);
+
+            foreach($nodePaths as $path) {
+
+                list($properties) =
+                    $this->server->getPropertiesForPath($this->server->getRequestUri() . '/' . $path, $parser->requestedProperties);
+
                 if ($parser->expand) {
+                    // We need to do some post-processing
+                    $vObject = VObject\Reader::read($properties[200]['{urn:ietf:params:xml:ns:caldav}calendar-data']);
                     $vObject->expand($parser->expand['start'], $parser->expand['end']);
-                    $node[200]['{' . self::NS_CALDAV . '}calendar-data'] = $vObject->serialize();
+                    $properties[200]['{' . self::NS_CALDAV . '}calendar-data'] = $vObject->serialize();
                 }
-                $verifiedNodes[] = $node;
+
+                $result[] = $properties;
+
             }
 
         }
 
+        $prefer = $this->server->getHTTPPRefer();
+
         $this->server->httpResponse->sendStatus(207);
         $this->server->httpResponse->setHeader('Content-Type','application/xml; charset=utf-8');
-        $this->server->httpResponse->sendBody($this->server->generateMultiStatus($verifiedNodes));
+        $this->server->httpResponse->setHeader('Vary','Brief,Prefer');
+        $this->server->httpResponse->sendBody($this->server->generateMultiStatus($result, $prefer['return-minimal']));
 
     }
 
@@ -561,10 +632,10 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
 
         }
         if ($start) {
-            $start = Sabre_VObject_DateTimeParser::parseDateTime($start);
+            $start = VObject\DateTimeParser::parseDateTime($start);
         }
         if ($end) {
-            $end = Sabre_VObject_DateTimeParser::parseDateTime($end);
+            $end = VObject\DateTimeParser::parseDateTime($end);
         }
 
         if (!$start && !$end) {
@@ -583,15 +654,33 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
             throw new Sabre_DAV_Exception_NotImplemented('The free-busy-query REPORT is only implemented on calendars');
         }
 
-        $objects = array_map(function($child) {
-            $obj = $child->get();
-            if (is_resource($obj)) {
-                $obj = stream_get_contents($obj);
-            }
+        // Doing a calendar-query first, to make sure we get the most
+        // performance.
+        $urls = $calendar->calendarQuery(array(
+            'name' => 'VCALENDAR',
+            'comp-filters' => array(
+                array(
+                    'name' => 'VEVENT',
+                    'comp-filters' => array(),
+                    'prop-filters' => array(),
+                    'is-not-defined' => false,
+                    'time-range' => array(
+                        'start' => $start,
+                        'end' => $end,
+                    ),
+                ),
+            ),
+            'prop-filters' => array(),
+            'is-not-defined' => false,
+            'time-range' => null,
+        ));
+
+        $objects = array_map(function($url) use ($calendar) {
+            $obj = $calendar->getChild($url)->get();
             return $obj;
-        }, $calendar->getChildren());
+        }, $urls);
 
-        $generator = new Sabre_VObject_FreeBusyGenerator();
+        $generator = new VObject\FreeBusyGenerator();
         $generator->setObjects($objects);
         $generator->setTimeRange($start, $end);
         $result = $generator->getResult();
@@ -620,7 +709,7 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
         if (!$node instanceof Sabre_CalDAV_ICalendarObject)
             return;
 
-        $this->validateICalendar($data);
+        $this->validateICalendar($data, $path);
 
     }
 
@@ -640,7 +729,52 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
         if (!$parentNode instanceof Sabre_CalDAV_Calendar)
             return;
 
-        $this->validateICalendar($data);
+        $this->validateICalendar($data, $path);
+
+    }
+
+    /**
+     * This event is triggered before any HTTP request is handled.
+     *
+     * We use this to intercept GET calls to notification nodes, and return the
+     * proper response.
+     *
+     * @param string $method
+     * @param string $path
+     * @return void
+     */
+    public function beforeMethod($method, $path) {
+
+        if ($method!=='GET') return;
+
+        try {
+            $node = $this->server->tree->getNodeForPath($path);
+        } catch (Sabre_DAV_Exception_NotFound $e) {
+            return;
+        }
+
+        if (!$node instanceof Sabre_CalDAV_Notifications_INode)
+            return;
+
+        if (!$this->server->checkPreconditions(true)) return false;
+
+        $dom = new DOMDocument('1.0', 'UTF-8');
+        $dom->formatOutput = true;
+
+        $root = $dom->createElement('cs:notification');
+        foreach($this->server->xmlNamespaces as $namespace => $prefix) {
+            $root->setAttribute('xmlns:' . $prefix, $namespace);
+        }
+
+        $dom->appendChild($root);
+        $node->getNotificationType()->serializeBody($this->server, $root);
+
+        $this->server->httpResponse->setHeader('Content-Type','application/xml');
+        $this->server->httpResponse->setHeader('ETag',$node->getETag());
+        $this->server->httpResponse->sendStatus(200);
+        $this->server->httpResponse->sendBody($dom->saveXML());
+
+        return false;
 
     }
 
@@ -650,9 +784,10 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
      * An exception is thrown if it's not.
      *
      * @param resource|string $data
+     * @param string $path
      * @return void
      */
-    protected function validateICalendar(&$data) {
+    protected function validateICalendar(&$data, $path) {
 
         // If it's a stream, we convert it to a string first.
         if (is_resource($data)) {
@@ -664,9 +799,9 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
 
         try {
 
-            $vobj = Sabre_VObject_Reader::read($data);
+            $vobj = VObject\Reader::read($data);
 
-        } catch (Sabre_VObject_ParseException $e) {
+        } catch (VObject\ParseException $e) {
 
             throw new Sabre_DAV_Exception_UnsupportedMediaType('This resource only supports valid iCalendar 2.0 data. Parse error: ' . $e->getMessage());
 
@@ -676,6 +811,11 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
             throw new Sabre_DAV_Exception_UnsupportedMediaType('This collection can only support iCalendar objects.');
         }
 
+        // Get the Supported Components for the target calendar
+        list($parentPath,$object) = Sabre_Dav_URLUtil::splitPath($path);
+        $calendarProperties = $this->server->getProperties($parentPath,array('{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set'));
+        $supportedComponents = $calendarProperties['{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set']->getValue();
+
         $foundType = null;
         $foundUID = null;
         foreach($vobj->getComponents() as $component) {
@@ -687,6 +827,9 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
                 case 'VJOURNAL' :
                     if (is_null($foundType)) {
                         $foundType = $component->name;
+                        if (!in_array($foundType, $supportedComponents)) {
+                            throw new Sabre_CalDAV_Exception_InvalidComponentType('This calendar only supports ' . implode(', ', $supportedComponents) . '. We found a ' . $foundType);
+                        }
                         if (!isset($component->UID)) {
                             throw new Sabre_DAV_Exception_BadRequest('Every ' . $component->name . ' component must have an UID');
                         }
@@ -711,12 +854,81 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
     }
 
     /**
-     * This method handles POST requests to the schedule-outbox
+     * This method handles POST requests to the schedule-outbox.
+     *
+     * Currently, two types of requests are support:
+     *   * FREEBUSY requests from RFC 6638
+     *   * Simple iTIP messages from draft-desruisseaux-caldav-sched-04
+     *
+     * The latter is from an expired early draft of the CalDAV scheduling
+     * extensions, but iCal depends on a feature from that spec, so we
+     * implement it.
      *
      * @param Sabre_CalDAV_Schedule_IOutbox $outboxNode
+     * @param string $outboxUri
+     * @return void
+     */
+    public function outboxRequest(Sabre_CalDAV_Schedule_IOutbox $outboxNode, $outboxUri) {
+
+        // Parsing the request body
+        try {
+            $vObject = VObject\Reader::read($this->server->httpRequest->getBody(true));
+        } catch (VObject\ParseException $e) {
+            throw new Sabre_DAV_Exception_BadRequest('The request body must be a valid iCalendar object. Parse error: ' . $e->getMessage());
+        }
+
+        // The incoming iCalendar object must have a METHOD property, and a
+        // component. The combination of both determines what type of request
+        // this is.
+        $componentType = null;
+        foreach($vObject->getComponents() as $component) {
+            if ($component->name !== 'VTIMEZONE') {
+                $componentType = $component->name;
+                break;
+            }
+        }
+        if (is_null($componentType)) {
+            throw new Sabre_DAV_Exception_BadRequest('We expected at least one VTODO, VJOURNAL, VFREEBUSY or VEVENT component');
+        }
+
+        // Validating the METHOD
+        $method = strtoupper((string)$vObject->METHOD);
+        if (!$method) {
+            throw new Sabre_DAV_Exception_BadRequest('A METHOD property must be specified in iTIP messages');
+        }
+
+        // So we support two types of requests:
+        //
+        // REQUEST with a VFREEBUSY component
+        // REQUEST, REPLY, ADD, CANCEL on VEVENT components
+
+        $acl = $this->server->getPlugin('acl');
+
+        if ($componentType === 'VFREEBUSY' && $method === 'REQUEST') {
+
+            $acl && $acl->checkPrivileges($outboxUri,'{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}schedule-query-freebusy');
+            $this->handleFreeBusyRequest($outboxNode, $vObject);
+
+        } elseif ($componentType === 'VEVENT' && in_array($method, array('REQUEST','REPLY','ADD','CANCEL'))) {
+
+            $acl && $acl->checkPrivileges($outboxUri,'{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}schedule-post-vevent');
+            $this->handleEventNotification($outboxNode, $vObject);
+
+        } else {
+
+            throw new Sabre_DAV_Exception_NotImplemented('SabreDAV supports only VFREEBUSY (REQUEST) and VEVENT (REQUEST, REPLY, ADD, CANCEL)');
+
+        }
+
+    }
+
+    /**
+     * This method handles the REQUEST, REPLY, ADD and CANCEL methods for
+     * VEVENT iTip messages.
+     *
      * @return void
      */
-    public function outboxRequest(Sabre_CalDAV_Schedule_IOutbox $outboxNode) {
+    protected function handleEventNotification(Sabre_CalDAV_Schedule_IOutbox $outboxNode, VObject\Component $vObject) {
 
         $originator = $this->server->httpRequest->getHeader('Originator');
         $recipients = $this->server->httpRequest->getHeader('Recipient');
@@ -760,38 +972,10 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
             throw new Sabre_DAV_Exception_Forbidden('The addresses specified in the Originator header did not match any addresses in the owners calendar-user-address-set header');
         }
 
-        try {
-            $vObject = Sabre_VObject_Reader::read($this->server->httpRequest->getBody(true));
-        } catch (Sabre_VObject_ParseException $e) {
-            throw new Sabre_DAV_Exception_BadRequest('The request body must be a valid iCalendar object. Parse error: ' . $e->getMessage());
-        }
-
-        // Checking for the object type
-        $componentType = null;
-        foreach($vObject->getComponents() as $component) {
-            if ($component->name !== 'VTIMEZONE') {
-                $componentType = $component->name;
-                break;
-            }
-        }
-        if (is_null($componentType)) {
-            throw new Sabre_DAV_Exception_BadRequest('We expected at least one VTODO, VJOURNAL, VFREEBUSY or VEVENT component');
-        }
-
-        // Validating the METHOD
-        $method = strtoupper((string)$vObject->METHOD);
-        if (!$method) {
-            throw new Sabre_DAV_Exception_BadRequest('A METHOD property must be specified in iTIP messages');
-        }
-
-        if (in_array($method, array('REQUEST','REPLY','ADD','CANCEL')) && $componentType==='VEVENT') {
-            $result = $this->iMIPMessage($originator, $recipients, $vObject);
-            $this->server->httpResponse->sendStatus(200);
-            $this->server->httpResponse->setHeader('Content-Type','application/xml');
-            $this->server->httpResponse->sendBody($this->generateScheduleResponse($result));
-        } else {
-            throw new Sabre_DAV_Exception_NotImplemented('This iTIP method is currently not implemented');
-        }
+        $result = $this->iMIPMessage($originator, $recipients, $vObject, $principal);
+        $this->server->httpResponse->sendStatus(200);
+        $this->server->httpResponse->setHeader('Content-Type','application/xml');
+        $this->server->httpResponse->sendBody($this->generateScheduleResponse($result));
 
     }
 
@@ -813,15 +997,15 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
      *
      * @param string $originator
      * @param array $recipients
-     * @param Sabre_VObject_Component $vObject
+     * @param Sabre\VObject\Component $vObject
      * @return array
      */
-    protected function iMIPMessage($originator, array $recipients, Sabre_VObject_Component $vObject) {
+    protected function iMIPMessage($originator, array $recipients, VObject\Component $vObject, $principal) {
 
         if (!$this->imipHandler) {
             $resultStatus = '5.2;This server does not support this operation';
         } else {
-            $this->imipHandler->sendMessage($originator, $recipients, $vObject);
+            $this->imipHandler->sendMessage($originator, $recipients, $vObject, $principal);
             $resultStatus = '2.0;Success';
         }
 
@@ -832,7 +1016,6 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
 
         return $result;
 
-
     }
 
     /**
@@ -877,6 +1060,204 @@ class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
 
     }
 
+    /**
+     * This method is responsible for parsing a free-busy query request and
+     * returning it's result.
+     *
+     * @param Sabre_CalDAV_Schedule_IOutbox $outbox
+     * @param string $request
+     * @return string
+     */
+    protected function handleFreeBusyRequest(Sabre_CalDAV_Schedule_IOutbox $outbox, VObject\Component $vObject) {
+
+        $vFreeBusy = $vObject->VFREEBUSY;
+        $organizer = $vFreeBusy->organizer;
+
+        $organizer = (string)$organizer;
+
+        // Validating if the organizer matches the owner of the inbox.
+        $owner = $outbox->getOwner();
+
+        $caldavNS = '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}';
+
+        $uas = $caldavNS . 'calendar-user-address-set';
+        $props = $this->server->getProperties($owner,array($uas));
+
+        if (empty($props[$uas]) || !in_array($organizer, $props[$uas]->getHrefs())) {
+            throw new Sabre_DAV_Exception_Forbidden('The organizer in the request did not match any of the addresses for the owner of this inbox');
+        }
+
+        if (!isset($vFreeBusy->ATTENDEE)) {
+            throw new Sabre_DAV_Exception_BadRequest('You must at least specify 1 attendee');
+        }
+
+        $attendees = array();
+        foreach($vFreeBusy->ATTENDEE as $attendee) {
+            $attendees[]= (string)$attendee;
+        }
+
+
+        if (!isset($vFreeBusy->DTSTART) || !isset($vFreeBusy->DTEND)) {
+            throw new Sabre_DAV_Exception_BadRequest('DTSTART and DTEND must both be specified');
+        }
+
+        $startRange = $vFreeBusy->DTSTART->getDateTime();
+        $endRange = $vFreeBusy->DTEND->getDateTime();
+
+        $results = array();
+        foreach($attendees as $attendee) {
+            $results[] = $this->getFreeBusyForEmail($attendee, $startRange, $endRange, $vObject);
+        }
+
+        $dom = new DOMDocument('1.0','utf-8');
+        $dom->formatOutput = true;
+        $scheduleResponse = $dom->createElement('cal:schedule-response');
+        foreach($this->server->xmlNamespaces as $namespace=>$prefix) {
+
+            $scheduleResponse->setAttribute('xmlns:' . $prefix,$namespace);
+
+        }
+        $dom->appendChild($scheduleResponse);
+
+        foreach($results as $result) {
+            $response = $dom->createElement('cal:response');
+
+            $recipient = $dom->createElement('cal:recipient');
+            $recipientHref = $dom->createElement('d:href');
+
+            $recipientHref->appendChild($dom->createTextNode($result['href']));
+            $recipient->appendChild($recipientHref);
+            $response->appendChild($recipient);
+
+            $reqStatus = $dom->createElement('cal:request-status');
+            $reqStatus->appendChild($dom->createTextNode($result['request-status']));
+            $response->appendChild($reqStatus);
+
+            if (isset($result['calendar-data'])) {
+
+                $calendardata = $dom->createElement('cal:calendar-data');
+                $calendardata->appendChild($dom->createTextNode(str_replace("\r\n","\n",$result['calendar-data']->serialize())));
+                $response->appendChild($calendardata);
+
+            }
+            $scheduleResponse->appendChild($response);
+        }
+
+        $this->server->httpResponse->sendStatus(200);
+        $this->server->httpResponse->setHeader('Content-Type','application/xml');
+        $this->server->httpResponse->sendBody($dom->saveXML());
+
+    }
+
+    /**
+     * Returns free-busy information for a specific address. The returned
+     * data is an array containing the following properties:
+     *
+     * calendar-data : A VFREEBUSY VObject
+     * request-status : an iTip status code.
+     * href: The principal's email address, as requested
+     *
+     * The following request status codes may be returned:
+     *   * 2.0;description
+     *   * 3.7;description
+     *
+     * @param string $email address
+     * @param DateTime $start
+     * @param DateTime $end
+     * @param Sabre_VObject_Component $request
+     * @return Sabre_VObject_Component
+     */
+    protected function getFreeBusyForEmail($email, DateTime $start, DateTime $end, VObject\Component $request) {
+
+        $caldavNS = '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}';
+
+        $aclPlugin = $this->server->getPlugin('acl');
+        if (substr($email,0,7)==='mailto:') $email = substr($email,7);
+
+        $result = $aclPlugin->principalSearch(
+            array('{http://sabredav.org/ns}email-address' => $email),
+            array(
+                '{DAV:}principal-URL', $caldavNS . 'calendar-home-set',
+                '{http://sabredav.org/ns}email-address',
+            )
+        );
+
+        if (!count($result)) {
+            return array(
+                'request-status' => '3.7;Could not find principal',
+                'href' => 'mailto:' . $email,
+            );
+        }
+
+        if (!isset($result[0][200][$caldavNS . 'calendar-home-set'])) {
+            return array(
+                'request-status' => '3.7;No calendar-home-set property found',
+                'href' => 'mailto:' . $email,
+            );
+        }
+        $homeSet = $result[0][200][$caldavNS . 'calendar-home-set']->getHref();
+
+        // Grabbing the calendar list
+        $objects = array();
+        foreach($this->server->tree->getNodeForPath($homeSet)->getChildren() as $node) {
+            if (!$node instanceof Sabre_CalDAV_ICalendar) {
+                continue;
+            }
+            $aclPlugin->checkPrivileges($homeSet . $node->getName() ,$caldavNS . 'read-free-busy');
+
+            // Getting the list of object uris within the time-range
+            $urls = $node->calendarQuery(array(
+                'name' => 'VCALENDAR',
+                'comp-filters' => array(
+                    array(
+                        'name' => 'VEVENT',
+                        'comp-filters' => array(),
+                        'prop-filters' => array(),
+                        'is-not-defined' => false,
+                        'time-range' => array(
+                            'start' => $start,
+                            'end' => $end,
+                        ),
+                    ),
+                ),
+                'prop-filters' => array(),
+                'is-not-defined' => false,
+                'time-range' => null,
+            ));
+
+            $calObjects = array_map(function($url) use ($node) {
+                $obj = $node->getChild($url)->get();
+                return $obj;
+            }, $urls);
+
+            $objects = array_merge($objects,$calObjects);
+
+        }
+
+        $vcalendar = VObject\Component::create('VCALENDAR');
+        $vcalendar->VERSION = '2.0';
+        $vcalendar->METHOD = 'REPLY';
+        $vcalendar->CALSCALE = 'GREGORIAN';
+        $vcalendar->PRODID = '-//SabreDAV//SabreDAV ' . Sabre_DAV_Version::VERSION . '//EN';
+
+        $generator = new VObject\FreeBusyGenerator();
+        $generator->setObjects($objects);
+        $generator->setTimeRange($start, $end);
+        $generator->setBaseObject($vcalendar);
+
+        $result = $generator->getResult();
+
+        $vcalendar->VFREEBUSY->ATTENDEE = 'mailto:' . $email;
+        $vcalendar->VFREEBUSY->UID = (string)$request->VFREEBUSY->UID;
+        $vcalendar->VFREEBUSY->ORGANIZER = clone $request->VFREEBUSY->ORGANIZER;
+
+        return array(
+            'calendar-data' => $result,
+            'request-status' => '2.0;Success',
+            'href' => 'mailto:' . $email,
+        );
+    }
+
     /**
      * This method is used to generate HTML output for the
      * Sabre_DAV_Browser_Plugin. This allows us to generate an interface users

3rdparty/Sabre/CalDAV/Property/AllowedSharingModes.php

@@ -0,0 +1,72 @@
+<?php
+
+/**
+ * AllowedSharingModes
+ *
+ * This property encodes the 'allowed-sharing-modes' property, as defined by
+ * the 'caldav-sharing-02' spec, in the http://calendarserver.org/ns/
+ * namespace.
+ *
+ * This property is a representation of the supported-calendar_component-set
+ * property in the CalDAV namespace. It simply requires an array of components,
+ * such as VEVENT, VTODO
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @see https://trac.calendarserver.org/browser/CalendarServer/trunk/doc/Extensions/caldav-sharing-02.txt
+ * @copyright Copyright (C) 2007-2012 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_Property_AllowedSharingModes extends Sabre_DAV_Property {
+
+    /**
+     * Whether or not a calendar can be shared with another user
+     *
+     * @var bool
+     */
+    protected $canBeShared;
+
+    /**
+     * Whether or not the calendar can be placed on a public url.
+     *
+     * @var bool
+     */
+    protected $canBePublished;
+
+    /**
+     * Constructor
+     *
+     * @param bool $canBeShared
+     * @param bool $canBePublished
+     * @return void
+     */
+    public function __construct($canBeShared, $canBePublished) {
+
+        $this->canBeShared = $canBeShared;
+        $this->canBePublished = $canBePublished;
+
+    }
+
+    /**
+     * Serializes the property in a DOMDocument
+     *
+     * @param Sabre_DAV_Server $server
+     * @param DOMElement $node
+     * @return void
+     */
+    public function serialize(Sabre_DAV_Server $server,DOMElement $node) {
+
+       $doc = $node->ownerDocument;
+       if ($this->canBeShared) {
+            $xcomp = $doc->createElement('cs:can-be-shared');
+            $node->appendChild($xcomp);
+       }
+       if ($this->canBePublished) {
+            $xcomp = $doc->createElement('cs:can-be-published');
+            $node->appendChild($xcomp);
+       }
+
+    }
+
+}

3rdparty/Sabre/CalDAV/Property/Invite.php

@@ -0,0 +1,173 @@
+<?php
+
+use Sabre_CalDAV_SharingPlugin as SharingPlugin;
+
+/**
+ * Invite property
+ *
+ * This property encodes the 'invite' property, as defined by
+ * the 'caldav-sharing-02' spec, in the http://calendarserver.org/ns/
+ * namespace.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @see https://trac.calendarserver.org/browser/CalendarServer/trunk/doc/Extensions/caldav-sharing-02.txt
+ * @copyright Copyright (C) 2007-2012 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_Property_Invite extends Sabre_DAV_Property {
+
+    /**
+     * The list of users a calendar has been shared to.
+     *
+     * @var array
+     */
+    protected $users;
+
+    /**
+     * Creates the property.
+     *
+     * Users is an array. Each element of the array has the following
+     * properties:
+     *
+     *   * href - Often a mailto: address
+     *   * commonName - Optional, for example a first and lastname for a user.
+     *   * status - One of the SharingPlugin::STATUS_* constants.
+     *   * readOnly - true or false
+     *   * summary - Optional, description of the share
+     *
+     * @param array $users
+     */
+    public function __construct(array $users) {
+
+        $this->users = $users;
+
+    }
+
+    /**
+     * Returns the list of users, as it was passed to the constructor.
+     *
+     * @return array
+     */
+    public function getValue() {
+
+        return $this->users;
+
+    }
+
+    /**
+     * Serializes the property in a DOMDocument
+     *
+     * @param Sabre_DAV_Server $server
+     * @param DOMElement $node
+     * @return void
+     */
+    public function serialize(Sabre_DAV_Server $server,DOMElement $node) {
+
+       $doc = $node->ownerDocument;
+       foreach($this->users as $user) {
+
+           $xuser = $doc->createElement('cs:user');
+
+           $href = $doc->createElement('d:href');
+           $href->appendChild($doc->createTextNode($user['href']));
+           $xuser->appendChild($href);
+
+           if (isset($user['commonName']) && $user['commonName']) {
+               $commonName = $doc->createElement('cs:common-name');
+               $commonName->appendChild($doc->createTextNode($user['commonName']));
+               $xuser->appendChild($commonName);
+           }
+
+           switch($user['status']) {
+
+               case SharingPlugin::STATUS_ACCEPTED :
+                   $status = $doc->createElement('cs:invite-accepted');
+                   $xuser->appendChild($status);
+                   break;
+               case SharingPlugin::STATUS_DECLINED :
+                   $status = $doc->createElement('cs:invite-declined');
+                   $xuser->appendChild($status);
+                   break;
+               case SharingPlugin::STATUS_NORESPONSE :
+                   $status = $doc->createElement('cs:invite-noresponse');
+                   $xuser->appendChild($status);
+                   break;
+               case SharingPlugin::STATUS_INVALID :
+                   $status = $doc->createElement('cs:invite-invalid');
+                   $xuser->appendChild($status);
+                   break;
+
+           }
+
+           $xaccess = $doc->createElement('cs:access');
+
+           if ($user['readOnly']) {
+                $xaccess->appendChild(
+                    $doc->createElement('cs:read')
+                );
+           } else {
+                $xaccess->appendChild(
+                    $doc->createElement('cs:read-write')
+                );
+           }
+           $xuser->appendChild($xaccess);
+
+           if (isset($user['summary']) && $user['summary']) {
+               $summary = $doc->createElement('cs:summary');
+               $summary->appendChild($doc->createTextNode($user['summary']));
+               $xuser->appendChild($summary);
+           }
+
+           $node->appendChild($xuser);
+
+       }
+
+    }
+
+    /**
+     * Unserializes the property.
+     *
+     * This static method should return a an instance of this object.
+     *
+     * @param DOMElement $prop
+     * @return Sabre_DAV_IProperty
+     */
+    static function unserialize(DOMElement $prop) {
+
+        $xpath = new \DOMXPath($prop->ownerDocument);
+        $xpath->registerNamespace('cs', Sabre_CalDAV_Plugin::NS_CALENDARSERVER);
+        $xpath->registerNamespace('d',  'DAV:');
+
+        $users = array();
+
+        foreach($xpath->query('cs:user', $prop) as $user) {
+
+            $status = null;
+            if ($xpath->evaluate('boolean(cs:invite-accepted)', $user)) {
+                $status = SharingPlugin::STATUS_ACCEPTED;
+            } elseif ($xpath->evaluate('boolean(cs:invite-declined)', $user)) {
+                $status = SharingPlugin::STATUS_DECLINED;
+            } elseif ($xpath->evaluate('boolean(cs:invite-noresponse)', $user)) {
+                $status = SharingPlugin::STATUS_NORESPONSE;
+            } elseif ($xpath->evaluate('boolean(cs:invite-invalid)', $user)) {
+                $status = SharingPlugin::STATUS_INVALID;
+            } else {
+                throw new Sabre_DAV_Exception('Every cs:user property must have one of cs:invite-accepted, cs:invite-declined, cs:invite-noresponse or cs:invite-invalid');
+            }
+            $users[] = array(
+                'href' => $xpath->evaluate('string(d:href)', $user),
+                'commonName' => $xpath->evaluate('string(cs:common-name)', $user),
+                'readOnly' => $xpath->evaluate('boolean(cs:access/cs:read)', $user),
+                'summary' => $xpath->evaluate('string(cs:summary)', $user),
+                'status' => $status,
+            );
+
+        }
+
+        return new self($users);
+
+    }
+
+}

3rdparty/Sabre/CalDAV/Property/ScheduleCalendarTransp.php

@@ -0,0 +1,99 @@
+<?php
+
+/**
+ * schedule-calendar-transp property.
+ *
+ * This property is a representation of the schedule-calendar-transp property.
+ * This property is defined in RFC6638 (caldav scheduling).
+ *
+ * Its values are either 'transparent' or 'opaque'. If it's transparent, it
+ * means that this calendar will not be taken into consideration when a
+ * different user queries for free-busy information. If it's 'opaque', it will.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 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_Property_ScheduleCalendarTransp extends Sabre_DAV_Property {
+
+    const TRANSPARENT = 'transparent';
+    const OPAQUE = 'opaque';
+
+    protected $value;
+
+    /**
+     * Creates the property
+     *
+     * @param string $value
+     */
+    public function __construct($value) {
+
+        if ($value !== self::TRANSPARENT && $value !== self::OPAQUE) {
+            throw new \InvalidArgumentException('The value must either be specified as "transparent" or "opaque"');
+        }
+        $this->value = $value;
+
+    }
+
+    /**
+     * Returns the current value
+     *
+     * @return string
+     */
+    public function getValue() {
+
+        return $this->value;
+
+    }
+
+    /**
+     * Serializes the property in a DOMDocument
+     *
+     * @param Sabre_DAV_Server $server
+     * @param DOMElement $node
+     * @return void
+     */
+    public function serialize(Sabre_DAV_Server $server,DOMElement $node) {
+
+        $doc = $node->ownerDocument;
+        switch($this->value) {
+            case self::TRANSPARENT :
+                $xval = $doc->createElement('cal:transparent');
+                break;
+            case self::OPAQUE :
+                $xval = $doc->createElement('cal:opaque');
+                break;
+        }
+
+        $node->appendChild($xval);
+
+    }
+
+    /**
+     * Unserializes the DOMElement back into a Property class.
+     *
+     * @param DOMElement $node
+     * @return Sabre_CalDAV_Property_ScheduleCalendarTransp
+     */
+    static function unserialize(DOMElement $node) {
+
+        $value = null;
+        foreach($node->childNodes as $childNode) {
+            switch(Sabre_DAV_XMLUtil::toClarkNotation($childNode)) {
+                case '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}opaque' :
+                    $value = self::OPAQUE;
+                    break;
+                case '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}transparent' :
+                    $value = self::TRANSPARENT;
+                    break;
+            }
+        }
+        if (is_null($value))
+           return null;
+
+        return new self($value);
+
+    }
+}

3rdparty/Sabre/CalDAV/Schedule/IMip.php

@@ -1,5 +1,7 @@
 <?php
 
+use Sabre\VObject;
+
 /**
  * iMIP handler.
  *
@@ -42,12 +44,13 @@ class Sabre_CalDAV_Schedule_IMip {
     /**
      * Sends one or more iTip messages through email.
      *
-     * @param string $originator
-     * @param array $recipients
-     * @param Sabre_VObject_Component $vObject
+     * @param string $originator Originator Email
+     * @param array $recipients Array of email addresses
+     * @param Sabre\VObject\Component $vObject
+     * @param string $principal Principal Url of the originator
      * @return void
      */
-    public function sendMessage($originator, array $recipients, Sabre_VObject_Component $vObject) {
+    public function sendMessage($originator, array $recipients, VObject\Component $vObject, $principal) {
 
         foreach($recipients as $recipient) {
 
@@ -83,6 +86,9 @@ class Sabre_CalDAV_Schedule_IMip {
 
     }
 
+    // @codeCoverageIgnoreStart
+    // This is deemed untestable in a reasonable manner
+
     /**
      * This function is reponsible for sending the actual email.
      *
@@ -94,11 +100,11 @@ class Sabre_CalDAV_Schedule_IMip {
      */
     protected function mail($to, $subject, $body, array $headers) {
 
+
         mail($to, $subject, $body, implode("\r\n", $headers));
 
     }
 
+    // @codeCoverageIgnoreEnd
 
 }
-
-?>

3rdparty/Sabre/CalDAV/Schedule/Outbox.php

@@ -13,7 +13,7 @@
  * @author Evert Pot (http://www.rooftopsolutions.nl/)
  * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
  */
-class Sabre_CalDAV_Schedule_Outbox extends Sabre_DAV_Directory implements Sabre_CalDAV_Schedule_IOutbox {
+class Sabre_CalDAV_Schedule_Outbox extends Sabre_DAV_Collection implements Sabre_CalDAV_Schedule_IOutbox {
 
     /**
      * The principal Uri
@@ -103,6 +103,11 @@ class Sabre_CalDAV_Schedule_Outbox extends Sabre_DAV_Directory implements Sabre_
                 'principal' => $this->getOwner(),
                 'protected' => true,
             ),
+            array(
+                'privilege' => '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}schedule-post-vevent',
+                'principal' => $this->getOwner(),
+                'protected' => true,
+            ),
             array(
                 'privilege' => '{DAV:}read',
                 'principal' => $this->getOwner(),
@@ -144,6 +149,9 @@ class Sabre_CalDAV_Schedule_Outbox extends Sabre_DAV_Directory implements Sabre_
         $default['aggregates'][] = array(
             'privilege' => '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}schedule-query-freebusy',
         );
+        $default['aggregates'][] = array(
+            'privilege' => '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}schedule-post-vevent',
+        );
 
         return $default;
 

3rdparty/Sabre/CalDAV/Server.php

@@ -1,68 +0,0 @@
-<?php
-
-/**
- * CalDAV server
- *
- * Deprecated! Warning: This class is now officially deprecated
- *
- * This script is a convenience script. It quickly sets up a WebDAV server
- * with caldav and ACL support, and it creates the root 'principals' and
- * 'calendars' collections.
- *
- * Note that if you plan to do anything moderately complex, you are advised to
- * not subclass this server, but use Sabre_DAV_Server directly instead. This
- * class is nothing more than an 'easy setup'.
- *
- * @package Sabre
- * @subpackage CalDAV
- * @deprecated Don't use this class anymore, it will be removed in version 1.7.
- * @copyright Copyright (C) 2007-2012 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_Server extends Sabre_DAV_Server {
-
-    /**
-     * The authentication realm
-     *
-     * Note that if this changes, the hashes in the auth backend must also
-     * be recalculated.
-     *
-     * @var string
-     */
-    public $authRealm = 'SabreDAV';
-
-    /**
-     * Sets up the object. A PDO object must be passed to setup all the backends.
-     *
-     * @param PDO $pdo
-     */
-    public function __construct(PDO $pdo) {
-
-        /* Backends */
-        $authBackend = new Sabre_DAV_Auth_Backend_PDO($pdo);
-        $calendarBackend = new Sabre_CalDAV_Backend_PDO($pdo);
-        $principalBackend = new Sabre_DAVACL_PrincipalBackend_PDO($pdo);
-
-        /* Directory structure */
-        $tree = array(
-            new Sabre_CalDAV_Principal_Collection($principalBackend),
-            new Sabre_CalDAV_CalendarRootNode($principalBackend, $calendarBackend),
-        );
-
-        /* Initializing server */
-        parent::__construct($tree);
-
-        /* Server Plugins */
-        $authPlugin = new Sabre_DAV_Auth_Plugin($authBackend,$this->authRealm);
-        $this->addPlugin($authPlugin);
-
-        $aclPlugin = new Sabre_DAVACL_Plugin();
-        $this->addPlugin($aclPlugin);
-
-        $caldavPlugin = new Sabre_CalDAV_Plugin();
-        $this->addPlugin($caldavPlugin);
-
-    }
-
-}

3rdparty/Sabre/CalDAV/ShareableCalendar.php

@@ -0,0 +1,72 @@
+<?php
+
+/**
+ * This object represents a CalDAV calendar that can be shared with other
+ * users.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 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_ShareableCalendar extends Sabre_CalDAV_Calendar implements Sabre_CalDAV_IShareableCalendar {
+
+    /**
+     * Updates the list of shares.
+     *
+     * The first array is a list of people that are to be added to the
+     * calendar.
+     *
+     * Every element in the add array has the following properties:
+     *   * href - A url. Usually a mailto: address
+     *   * commonName - Usually a first and last name, or false
+     *   * summary - A description of the share, can also be false
+     *   * readOnly - A boolean value
+     *
+     * Every element in the remove array is just the address string.
+     *
+     * @param array $add
+     * @param array $remove
+     * @return void
+     */
+    public function updateShares(array $add, array $remove) {
+
+        $this->caldavBackend->updateShares($this->calendarInfo['id'], $add, $remove);
+
+    }
+
+    /**
+     * Returns the list of people whom this calendar is shared with.
+     *
+     * Every element in this array should have the following properties:
+     *   * href - Often a mailto: address
+     *   * commonName - Optional, for example a first + last name
+     *   * status - See the Sabre_CalDAV_SharingPlugin::STATUS_ constants.
+     *   * readOnly - boolean
+     *   * summary - Optional, a description for the share
+     *
+     * @return array
+     */
+    public function getShares() {
+
+        return $this->caldavBackend->getShares($this->calendarInfo['id']);
+
+    }
+
+    /**
+     * Marks this calendar as published.
+     *
+     * Publishing a calendar should automatically create a read-only, public,
+     * subscribable calendar.
+     *
+     * @param bool $value
+     * @return void
+     */
+    public function setPublishStatus($value) {
+
+        $this->caldavBackend->setPublishStatus($this->calendarInfo['id'], $value);
+
+    }
+
+}

3rdparty/Sabre/CalDAV/SharedCalendar.php

@@ -0,0 +1,98 @@
+<?php
+
+/**
+ * This object represents a CalDAV calendar that is shared by a different user.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 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_SharedCalendar extends Sabre_CalDAV_Calendar implements Sabre_CalDAV_ISharedCalendar {
+
+    /**
+     * Constructor
+     *
+     * @param Sabre_DAVACL_IPrincipalBackend $principalBackend
+     * @param Sabre_CalDAV_Backend_BackendInterface $caldavBackend
+     * @param array $calendarInfo
+     */
+    public function __construct(Sabre_DAVACL_IPrincipalBackend $principalBackend, Sabre_CalDAV_Backend_BackendInterface $caldavBackend, $calendarInfo) {
+
+        $required = array(
+            '{http://calendarserver.org/ns/}shared-url',
+            '{http://sabredav.org/ns}owner-principal',
+            '{http://sabredav.org/ns}read-only',
+        );
+        foreach($required as $r) {
+            if (!isset($calendarInfo[$r])) {
+                throw new InvalidArgumentException('The ' . $r . ' property must be specified for SharedCalendar(s)');
+            }
+        }
+
+        parent::__construct($principalBackend, $caldavBackend, $calendarInfo);
+
+    }
+
+    /**
+     * This method should return the url of the owners' copy of the shared
+     * calendar.
+     *
+     * @return string
+     */
+    public function getSharedUrl() {
+
+        return $this->calendarInfo['{http://calendarserver.org/ns/}shared-url'];
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    public function getOwner() {
+
+        return $this->calendarInfo['{http://sabredav.org/ns}owner-principal'];
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    public function getACL() {
+
+        // The top-level ACL only contains access information for the true
+        // owner of the calendar, so we need to add the information for the
+        // sharee.
+        $acl = parent::getACL();
+        $acl[] = array(
+            'privilege' => '{DAV:}read',
+            'principal' => $this->calendarInfo['principaluri'],
+            'protected' => true,
+        );
+        if (!$this->calendarInfo['{http://sabredav.org/ns}read-only']) {
+            $acl[] = array(
+                'privilege' => '{DAV:}write',
+                'principal' => $this->calendarInfo['principaluri'],
+                'protected' => true,
+            );
+        }
+        return $acl;
+
+    }
+
+
+}

3rdparty/Sabre/CalDAV/SharingPlugin.php

@@ -0,0 +1,475 @@
+<?php
+
+/**
+ * This plugin implements support for caldav sharing.
+ *
+ * This spec is defined at:
+ * http://svn.calendarserver.org/repository/calendarserver/CalendarServer/trunk/doc/Extensions/caldav-sharing.txt
+ *
+ * See:
+ * Sabre_CalDAV_Backend_SharingSupport for all the documentation.
+ *
+ * Note: This feature is experimental, and may change in between different
+ * SabreDAV versions.
+ *
+ * @package Sabre
+ * @subpackage CalDAV
+ * @copyright Copyright (C) 2007-2012 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_SharingPlugin extends Sabre_DAV_ServerPlugin {
+
+    /**
+     * These are the various status constants used by sharing-messages.
+     */
+    const STATUS_ACCEPTED = 1;
+    const STATUS_DECLINED = 2;
+    const STATUS_DELETED = 3;
+    const STATUS_NORESPONSE = 4;
+    const STATUS_INVALID = 5;
+
+    /**
+     * Reference to SabreDAV server object.
+     *
+     * @var Sabre_DAV_Server
+     */
+    protected $server;
+
+    /**
+     * This method should return a list of server-features.
+     *
+     * This is for example 'versioning' and is added to the DAV: header
+     * in an OPTIONS response.
+     *
+     * @return array
+     */
+    public function getFeatures() {
+
+        return array('calendarserver-sharing');
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using Sabre_DAV_Server::getPlugin
+     *
+     * @return string
+     */
+    public function getPluginName() {
+
+        return 'caldav-sharing';
+
+    }
+
+    /**
+     * This initializes the plugin.
+     *
+     * This function is called by Sabre_DAV_Server, after
+     * addPlugin is called.
+     *
+     * This method should set up the required event subscriptions.
+     *
+     * @param Sabre_DAV_Server $server
+     * @return void
+     */
+    public function initialize(Sabre_DAV_Server $server) {
+
+        $this->server = $server;
+        //$server->resourceTypeMapping['Sabre_CalDAV_IShareableCalendar'] = '{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}shared-owner';
+        $server->resourceTypeMapping['Sabre_CalDAV_ISharedCalendar'] = '{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}shared';
+
+        array_push(
+            $this->server->protectedProperties,
+            '{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}invite',
+            '{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}allowed-sharing-modes',
+            '{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}shared-url'
+        );
+
+        $this->server->subscribeEvent('beforeGetProperties', array($this, 'beforeGetProperties'));
+        $this->server->subscribeEvent('afterGetProperties', array($this, 'afterGetProperties'));
+        $this->server->subscribeEvent('updateProperties', array($this, 'updateProperties'));
+        $this->server->subscribeEvent('unknownMethod', array($this,'unknownMethod'));
+
+    }
+
+    /**
+     * This event is triggered when properties are requested for a certain
+     * node.
+     *
+     * This allows us to inject any properties early.
+     *
+     * @param string $path
+     * @param Sabre_DAV_INode $node
+     * @param array $requestedProperties
+     * @param array $returnedProperties
+     * @return void
+     */
+    public function beforeGetProperties($path, Sabre_DAV_INode $node, &$requestedProperties, &$returnedProperties) {
+
+        if ($node instanceof Sabre_CalDAV_IShareableCalendar) {
+            if (($index = array_search('{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}invite', $requestedProperties))!==false) {
+
+                unset($requestedProperties[$index]);
+                $returnedProperties[200]['{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}invite'] =
+                    new Sabre_CalDAV_Property_Invite(
+                        $node->getShares()
+                    );
+
+            }
+
+        }
+        if ($node instanceof Sabre_CalDAV_ISharedCalendar) {
+            if (($index = array_search('{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}shared-url', $requestedProperties))!==false) {
+
+                unset($requestedProperties[$index]);
+                $returnedProperties[200]['{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}shared-url'] =
+                    new Sabre_DAV_Property_Href(
+                        $node->getSharedUrl()
+                    );
+
+            }
+
+        }
+
+    }
+
+    /**
+     * This method is triggered *after* all properties have been retrieved.
+     * This allows us to inject the correct resourcetype for calendars that
+     * have been shared.
+     *
+     * @param string $path
+     * @param array $properties
+     * @param Sabre_DAV_INode $node
+     * @return void
+     */
+    public function afterGetProperties($path, &$properties, Sabre_DAV_INode $node) {
+
+        if ($node instanceof Sabre_CalDAV_IShareableCalendar) {
+            if (isset($properties[200]['{DAV:}resourcetype'])) {
+                if (count($node->getShares())>0) {
+                    $properties[200]['{DAV:}resourcetype']->add(
+                        '{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}shared-owner'
+                    );
+                }
+            }
+            $propName = '{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}allowed-sharing-modes';
+            if (array_key_exists($propName, $properties[404])) {
+                unset($properties[404][$propName]);
+                $properties[200][$propName] = new Sabre_CalDAV_Property_AllowedSharingModes(true,false);
+            }
+
+        }
+
+    }
+
+    /**
+     * This method is trigged when a user attempts to update a node's
+     * properties.
+     *
+     * A previous draft of the sharing spec stated that it was possible to use
+     * PROPPATCH to remove 'shared-owner' from the resourcetype, thus unsharing
+     * the calendar.
+     *
+     * Even though this is no longer in the current spec, we keep this around
+     * because OS X 10.7 may still make use of this feature.
+     *
+     * @param array $mutations
+     * @param array $result
+     * @param Sabre_DAV_INode $node
+     * @return void
+     */
+    public function updateProperties(array &$mutations, array &$result, Sabre_DAV_INode $node) {
+
+        if (!$node instanceof Sabre_CalDAV_IShareableCalendar)
+            return;
+
+        if (!isset($mutations['{DAV:}resourcetype'])) {
+            return;
+        }
+
+        // Only doing something if shared-owner is indeed not in the list.
+        if($mutations['{DAV:}resourcetype']->is('{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}shared-owner')) return; 
+
+        $shares = $node->getShares();
+        $remove = array();
+        foreach($shares as $share) {
+            $remove[] = $share['href'];
+        }
+        $node->updateShares(array(), $remove);
+
+        // We're marking this update as 200 OK
+        $result[200]['{DAV:}resourcetype'] = null;
+
+        // Removing it from the mutations list
+        unset($mutations['{DAV:}resourcetype']);
+
+    }
+
+    /**
+     * This event is triggered when the server didn't know how to handle a
+     * certain request.
+     *
+     * We intercept this to handle POST requests on calendars.
+     *
+     * @param string $method
+     * @param string $uri
+     * @return null|bool
+     */
+    public function unknownMethod($method, $uri) {
+
+        if ($method!=='POST') {
+            return;
+        }
+
+        // Only handling xml
+        $contentType = $this->server->httpRequest->getHeader('Content-Type');
+        if (strpos($contentType,'application/xml')===false && strpos($contentType,'text/xml')===false)
+            return;
+
+        // Making sure the node exists
+        try {
+            $node = $this->server->tree->getNodeForPath($uri);
+        } catch (Sabre_DAV_Exception_NotFound $e) {
+            return;
+        }
+
+
+        $dom = Sabre_DAV_XMLUtil::loadDOMDocument($this->server->httpRequest->getBody(true));
+
+        $documentType = Sabre_DAV_XMLUtil::toClarkNotation($dom->firstChild);
+
+        switch($documentType) {
+
+            // Dealing with the 'share' document, which modified invitees on a
+            // calendar.
+            case '{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}share' :
+
+                // We can only deal with IShareableCalendar objects
+                if (!$node instanceof Sabre_CalDAV_IShareableCalendar) {
+                    return;
+                }
+
+                // Getting ACL info
+                $acl = $this->server->getPlugin('acl');
+
+                // If there's no ACL support, we allow everything
+                if ($acl) {
+                    $acl->checkPrivileges($uri, '{DAV:}write');
+                }
+
+                $mutations = $this->parseShareRequest($dom);
+
+                $node->updateShares($mutations[0], $mutations[1]);
+
+                $this->server->httpResponse->sendStatus(200);
+                // Adding this because sending a response body may cause issues,
+                // and I wanted some type of indicator the response was handled.
+                $this->server->httpResponse->setHeader('X-Sabre-Status', 'everything-went-well');
+
+                // Breaking the event chain
+                return false;
+
+            // The invite-reply document is sent when the user replies to an
+            // invitation of a calendar share.
+            case '{'. Sabre_CalDAV_Plugin::NS_CALENDARSERVER.'}invite-reply' :
+
+                // This only works on the calendar-home-root node.
+                if (!$node instanceof Sabre_CalDAV_UserCalendars) {
+                    return;
+                }
+
+                // Getting ACL info
+                $acl = $this->server->getPlugin('acl');
+
+                // If there's no ACL support, we allow everything
+                if ($acl) {
+                    $acl->checkPrivileges($uri, '{DAV:}write');
+                }
+
+                $message = $this->parseInviteReplyRequest($dom);
+
+                $url = $node->shareReply(
+                    $message['href'],
+                    $message['status'],
+                    $message['calendarUri'],
+                    $message['inReplyTo'],
+                    $message['summary']
+                );
+
+                $this->server->httpResponse->sendStatus(200);
+                // Adding this because sending a response body may cause issues,
+                // and I wanted some type of indicator the response was handled.
+                $this->server->httpResponse->setHeader('X-Sabre-Status', 'everything-went-well');
+
+                if ($url) {
+                    $dom = new DOMDocument('1.0', 'UTF-8');
+                    $dom->formatOutput = true;
+
+                    $root = $dom->createElement('cs:shared-as');
+                    foreach($this->server->xmlNamespaces as $namespace => $prefix) {
+                        $root->setAttribute('xmlns:' . $prefix, $namespace);
+                    }
+
+                    $dom->appendChild($root);
+                    $href = new Sabre_DAV_Property_Href($url);
+
+                    $href->serialize($this->server, $root);
+                    $this->server->httpResponse->setHeader('Content-Type','application/xml');
+                    $this->server->httpResponse->sendBody($dom->saveXML());
+
+                }
+
+                // Breaking the event chain
+                return false;
+
+            case '{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}publish-calendar' :
+
+                // We can only deal with IShareableCalendar objects
+                if (!$node instanceof Sabre_CalDAV_IShareableCalendar) {
+                    return;
+                }
+
+                // Getting ACL info
+                $acl = $this->server->getPlugin('acl');
+
+                // If there's no ACL support, we allow everything
+                if ($acl) {
+                    $acl->checkPrivileges($uri, '{DAV:}write');
+                }
+
+                $node->setPublishStatus(true);
+
+                // iCloud sends back the 202, so we will too.
+                $this->server->httpResponse->sendStatus(202);
+
+                // Adding this because sending a response body may cause issues,
+                // and I wanted some type of indicator the response was handled.
+                $this->server->httpResponse->setHeader('X-Sabre-Status', 'everything-went-well');
+
+                // Breaking the event chain
+                return false;
+
+            case '{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}unpublish-calendar' :
+
+                // We can only deal with IShareableCalendar objects
+                if (!$node instanceof Sabre_CalDAV_IShareableCalendar) {
+                    return;
+                }
+
+                // Getting ACL info
+                $acl = $this->server->getPlugin('acl');
+
+                // If there's no ACL support, we allow everything
+                if ($acl) {
+                    $acl->checkPrivileges($uri, '{DAV:}write');
+                }
+
+                $node->setPublishStatus(false);
+
+                $this->server->httpResponse->sendStatus(200);
+
+                // Adding this because sending a response body may cause issues,
+                // and I wanted some type of indicator the response was handled.
+                $this->server->httpResponse->setHeader('X-Sabre-Status', 'everything-went-well');
+
+                // Breaking the event chain
+                return false;
+
+        }
+
+
+    }
+
+    /**
+     * Parses the 'share' POST request.
+     *
+     * This method returns an array, containing two arrays.
+     * The first array is a list of new sharees. Every element is a struct
+     * containing a:
+     *   * href element. (usually a mailto: address)
+     *   * commonName element (often a first and lastname, but can also be
+     *     false)
+     *   * readOnly (true or false)
+     *   * summary (A description of the share, can also be false)
+     *
+     * The second array is a list of sharees that are to be removed. This is
+     * just a simple array with 'hrefs'.
+     *
+     * @param DOMDocument $dom
+     * @return array
+     */
+    protected function parseShareRequest(DOMDocument $dom) {
+
+        $xpath = new \DOMXPath($dom);
+        $xpath->registerNamespace('cs', Sabre_CalDAV_Plugin::NS_CALENDARSERVER);
+        $xpath->registerNamespace('d', 'DAV:');
+
+
+        $set = array();
+        $elems = $xpath->query('cs:set');
+
+        for($i=0; $i < $elems->length; $i++) {
+
+            $xset = $elems->item($i);
+            $set[] = array(
+                'href' => $xpath->evaluate('string(d:href)', $xset),
+                'commonName' => $xpath->evaluate('string(cs:common-name)', $xset),
+                'summary' => $xpath->evaluate('string(cs:summary)', $xset),
+                'readOnly' => $xpath->evaluate('boolean(cs:read)', $xset)!==false
+            );
+
+        }
+
+        $remove = array();
+        $elems = $xpath->query('cs:remove');
+
+        for($i=0; $i < $elems->length; $i++) {
+
+            $xremove = $elems->item($i);
+            $remove[] = $xpath->evaluate('string(d:href)', $xremove);
+
+        }
+
+        return array($set, $remove);
+
+    }
+
+    /**
+     * Parses the 'invite-reply' POST request.
+     *
+     * This method returns an array, containing the following properties:
+     *   * href - The sharee who is replying
+     *   * status - One of the self::STATUS_* constants
+     *   * calendarUri - The url of the shared calendar
+     *   * inReplyTo - The unique id of the share invitation.
+     *   * summary - Optional description of the reply.
+     *
+     * @param DOMDocument $dom
+     * @return array
+     */
+    protected function parseInviteReplyRequest(DOMDocument $dom) {
+
+        $xpath = new \DOMXPath($dom);
+        $xpath->registerNamespace('cs', Sabre_CalDAV_Plugin::NS_CALENDARSERVER);
+        $xpath->registerNamespace('d', 'DAV:');
+
+        $hostHref = $xpath->evaluate('string(cs:hosturl/d:href)');
+        if (!$hostHref) {
+            throw new Sabre_DAV_Exception_BadRequest('The {' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}hosturl/{DAV:}href element is required');
+        }
+
+        return array(
+            'href' => $xpath->evaluate('string(d:href)'),
+            'calendarUri' => $this->server->calculateUri($hostHref),
+            'inReplyTo' => $xpath->evaluate('string(cs:in-reply-to)'),
+            'summary' => $xpath->evaluate('string(cs:summary)'),
+            'status' => $xpath->evaluate('boolean(cs:invite-accepted)')?self::STATUS_ACCEPTED:self::STATUS_DECLINED
+        );
+
+    }
+
+}

3rdparty/Sabre/CalDAV/UserCalendars.php

@@ -6,7 +6,7 @@
  * @package Sabre
  * @subpackage CalDAV
  * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
  * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
  */
 class Sabre_CalDAV_UserCalendars implements Sabre_DAV_IExtendedCollection, Sabre_DAVACL_IACL {
@@ -21,7 +21,7 @@ class Sabre_CalDAV_UserCalendars implements Sabre_DAV_IExtendedCollection, Sabre
     /**
      * CalDAV backend
      *
-     * @var Sabre_CalDAV_Backend_Abstract
+     * @var Sabre_CalDAV_Backend_BackendInterface
      */
     protected $caldavBackend;
 
@@ -36,10 +36,10 @@ class Sabre_CalDAV_UserCalendars implements Sabre_DAV_IExtendedCollection, Sabre
      * Constructor
      *
      * @param Sabre_DAVACL_IPrincipalBackend $principalBackend
-     * @param Sabre_CalDAV_Backend_Abstract $caldavBackend
+     * @param Sabre_CalDAV_Backend_BackendInterface $caldavBackend
      * @param mixed $userUri
      */
-    public function __construct(Sabre_DAVACL_IPrincipalBackend $principalBackend, Sabre_CalDAV_Backend_Abstract $caldavBackend, $userUri) {
+    public function __construct(Sabre_DAVACL_IPrincipalBackend $principalBackend, Sabre_CalDAV_Backend_BackendInterface $caldavBackend, $userUri) {
 
         $this->principalBackend = $principalBackend;
         $this->caldavBackend = $caldavBackend;
@@ -168,9 +168,22 @@ class Sabre_CalDAV_UserCalendars implements Sabre_DAV_IExtendedCollection, Sabre
         $calendars = $this->caldavBackend->getCalendarsForUser($this->principalInfo['uri']);
         $objs = array();
         foreach($calendars as $calendar) {
-            $objs[] = new Sabre_CalDAV_Calendar($this->principalBackend, $this->caldavBackend, $calendar);
+            if ($this->caldavBackend instanceof Sabre_CalDAV_Backend_SharingSupport) {
+                if (isset($calendar['{http://calendarserver.org/ns/}shared-url'])) {
+                    $objs[] = new Sabre_CalDAV_SharedCalendar($this->principalBackend, $this->caldavBackend, $calendar);
+                } else {
+                    $objs[] = new Sabre_CalDAV_ShareableCalendar($this->principalBackend, $this->caldavBackend, $calendar);
+                }
+            } else {
+                $objs[] = new Sabre_CalDAV_Calendar($this->principalBackend, $this->caldavBackend, $calendar);
+            }
         }
         $objs[] = new Sabre_CalDAV_Schedule_Outbox($this->principalInfo['uri']);
+
+        // We're adding a notifications node, if it's supported by the backend.
+        if ($this->caldavBackend instanceof Sabre_CalDAV_Backend_NotificationSupport) {
+            $objs[] = new Sabre_CalDAV_Notifications_Collection($this->caldavBackend, $this->principalInfo['uri']);
+        }
         return $objs;
 
     }
@@ -185,8 +198,22 @@ class Sabre_CalDAV_UserCalendars implements Sabre_DAV_IExtendedCollection, Sabre
      */
     public function createExtendedCollection($name, array $resourceType, array $properties) {
 
-        if (!in_array('{urn:ietf:params:xml:ns:caldav}calendar',$resourceType) || count($resourceType)!==2) {
-            throw new Sabre_DAV_Exception_InvalidResourceType('Unknown resourceType for this collection');
+        $isCalendar = false;
+        foreach($resourceType as $rt) {
+            switch ($rt) {
+                case '{DAV:}collection' :
+                case '{http://calendarserver.org/ns/}shared-owner' :
+                    // ignore
+                    break;
+                case '{urn:ietf:params:xml:ns:caldav}calendar' :
+                    $isCalendar = true;
+                    break;
+                default :
+                    throw new Sabre_DAV_Exception_InvalidResourceType('Unknown resourceType: ' . $rt);
+            }
+        }
+        if (!$isCalendar) {
+            throw new Sabre_DAV_Exception_InvalidResourceType('You can only create calendars in this collection');
         }
         $this->caldavBackend->createCalendar($this->principalInfo['uri'], $name, $properties);
 
@@ -295,4 +322,27 @@ class Sabre_CalDAV_UserCalendars implements Sabre_DAV_IExtendedCollection, Sabre
 
     }
 
+    /**
+     * This method is called when a user replied to a request to share.
+     *
+     * This method should return the url of the newly created calendar if the
+     * share was accepted.
+     *
+     * @param string href The sharee who is replying (often a mailto: address)
+     * @param int status One of the SharingPlugin::STATUS_* constants
+     * @param string $calendarUri The url to the calendar thats being shared
+     * @param string $inReplyTo The unique id this message is a response to
+     * @param string $summary A description of the reply
+     * @return null|string
+     */
+    public function shareReply($href, $status, $calendarUri, $inReplyTo, $summary = null) {
+
+        if (!$this->caldavBackend instanceof Sabre_CalDAV_Backend_SharingSupport) {
+            throw new Sabre_DAV_Exception_NotImplemented('Sharing support is not implemented by this backend.');
+        }
+
+        return $this->caldavBackend->shareReply($href, $status, $calendarUri, $inReplyTo, $summary);
+
+    }
+
 }

3rdparty/Sabre/CalDAV/Version.php

@@ -14,7 +14,7 @@ class Sabre_CalDAV_Version {
     /**
      * Full version number
      */
-    const VERSION = '1.6.4';
+    const VERSION = '1.7.0';
 
     /**
      * Stability : alpha, beta, stable

3rdparty/Sabre/CalDAV/includes.php

@@ -16,28 +16,47 @@
  */
 
 // Begin includes
-include __DIR__ . '/Backend/Abstract.php';
-include __DIR__ . '/Backend/PDO.php';
+include __DIR__ . '/Backend/BackendInterface.php';
+include __DIR__ . '/Backend/NotificationSupport.php';
+include __DIR__ . '/Backend/SharingSupport.php';
 include __DIR__ . '/CalendarQueryParser.php';
 include __DIR__ . '/CalendarQueryValidator.php';
 include __DIR__ . '/CalendarRootNode.php';
+include __DIR__ . '/Exception/InvalidComponentType.php';
 include __DIR__ . '/ICalendar.php';
 include __DIR__ . '/ICalendarObject.php';
 include __DIR__ . '/ICSExportPlugin.php';
+include __DIR__ . '/IShareableCalendar.php';
+include __DIR__ . '/ISharedCalendar.php';
+include __DIR__ . '/Notifications/ICollection.php';
+include __DIR__ . '/Notifications/INode.php';
+include __DIR__ . '/Notifications/INotificationType.php';
+include __DIR__ . '/Notifications/Node.php';
+include __DIR__ . '/Notifications/Notification/Invite.php';
+include __DIR__ . '/Notifications/Notification/InviteReply.php';
+include __DIR__ . '/Notifications/Notification/SystemStatus.php';
 include __DIR__ . '/Plugin.php';
 include __DIR__ . '/Principal/Collection.php';
 include __DIR__ . '/Principal/ProxyRead.php';
 include __DIR__ . '/Principal/ProxyWrite.php';
 include __DIR__ . '/Principal/User.php';
+include __DIR__ . '/Property/AllowedSharingModes.php';
+include __DIR__ . '/Property/Invite.php';
+include __DIR__ . '/Property/ScheduleCalendarTransp.php';
 include __DIR__ . '/Property/SupportedCalendarComponentSet.php';
 include __DIR__ . '/Property/SupportedCalendarData.php';
 include __DIR__ . '/Property/SupportedCollationSet.php';
 include __DIR__ . '/Schedule/IMip.php';
 include __DIR__ . '/Schedule/IOutbox.php';
 include __DIR__ . '/Schedule/Outbox.php';
-include __DIR__ . '/Server.php';
+include __DIR__ . '/SharingPlugin.php';
 include __DIR__ . '/UserCalendars.php';
 include __DIR__ . '/Version.php';
+include __DIR__ . '/Backend/Abstract.php';
+include __DIR__ . '/Backend/PDO.php';
 include __DIR__ . '/Calendar.php';
 include __DIR__ . '/CalendarObject.php';
+include __DIR__ . '/Notifications/Collection.php';
+include __DIR__ . '/ShareableCalendar.php';
+include __DIR__ . '/SharedCalendar.php';
 // End includes

3rdparty/Sabre/CardDAV/AddressBook.php

@@ -55,7 +55,7 @@ class Sabre_CardDAV_AddressBook extends Sabre_DAV_Collection implements Sabre_Ca
      * Returns a card
      *
      * @param string $name
-     * @return Sabre_DAV_Card
+     * @return Sabre_CardDAV_ICard
      */
     public function getChild($name) {
 
@@ -104,7 +104,7 @@ class Sabre_CardDAV_AddressBook extends Sabre_DAV_Collection implements Sabre_Ca
      *
      * @param string $name
      * @param resource $vcardData
-     * @return void|null
+     * @return string|null
      */
     public function createFile($name,$vcardData = null) {
 

3rdparty/Sabre/CardDAV/Card.php

@@ -6,7 +6,7 @@
  * @package Sabre
  * @subpackage CardDAV
  * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
  * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
  */
 class Sabre_CardDAV_Card extends Sabre_DAV_File implements Sabre_CardDAV_ICard, Sabre_DAVACL_IACL {
@@ -78,7 +78,7 @@ class Sabre_CardDAV_Card extends Sabre_DAV_File implements Sabre_CardDAV_ICard,
      * Updates the VCard-formatted object
      *
      * @param string $cardData
-     * @return void
+     * @return string|null
      */
     public function put($cardData) {
 
@@ -114,7 +114,7 @@ class Sabre_CardDAV_Card extends Sabre_DAV_File implements Sabre_CardDAV_ICard,
      */
     public function getContentType() {
 
-        return 'text/x-vcard';
+        return 'text/x-vcard; charset=utf-8';
 
     }
 
@@ -128,7 +128,13 @@ class Sabre_CardDAV_Card extends Sabre_DAV_File implements Sabre_CardDAV_ICard,
         if (isset($this->cardData['etag'])) {
             return $this->cardData['etag'];
         } else {
-            return '"' . md5($this->get()) . '"';
+            $data = $this->get();
+            if (is_string($data)) {
+                return '"' . md5($data) . '"';
+            } else {
+                // We refuse to calculate the md5 if it's a stream.
+                return null;
+            }
         }
 
     }
@@ -136,7 +142,7 @@ class Sabre_CardDAV_Card extends Sabre_DAV_File implements Sabre_CardDAV_ICard,
     /**
      * Returns the last modification date as a unix timestamp
      *
-     * @return time
+     * @return int
      */
     public function getLastModified() {
 

3rdparty/Sabre/CardDAV/Plugin.php

@@ -1,5 +1,7 @@
 <?php
 
+use Sabre\VObject;
+
 /**
  * CardDAV plugin
  *
@@ -48,6 +50,7 @@ class Sabre_CardDAV_Plugin extends Sabre_DAV_ServerPlugin {
 
         /* Events */
         $server->subscribeEvent('beforeGetProperties', array($this, 'beforeGetProperties'));
+        $server->subscribeEvent('afterGetProperties',  array($this, 'afterGetProperties'));
         $server->subscribeEvent('updateProperties', array($this, 'updateProperties'));
         $server->subscribeEvent('report', array($this,'report'));
         $server->subscribeEvent('onHTMLActionsPanel', array($this,'htmlActionsPanel'));
@@ -153,10 +156,6 @@ class Sabre_CardDAV_Plugin extends Sabre_DAV_ServerPlugin {
                 if (is_resource($val))
                     $val = stream_get_contents($val);
 
-                // Taking out \r to not screw up the xml output
-                //$returnedProperties[200][$addressDataProp] = str_replace("\r","", $val);
-                // The stripping of \r breaks the Mail App in OSX Mountain Lion
-                // this is fixed in master, but not backported. /Tanghus
                 $returnedProperties[200][$addressDataProp] = $val;
 
             }
@@ -190,7 +189,7 @@ class Sabre_CardDAV_Plugin extends Sabre_DAV_ServerPlugin {
      * @param array $mutations
      * @param array $result
      * @param Sabre_DAV_INode $node
-     * @return void
+     * @return bool
      */
     public function updateProperties(&$mutations, &$result, $node) {
 
@@ -272,7 +271,7 @@ class Sabre_CardDAV_Plugin extends Sabre_DAV_ServerPlugin {
 
         $properties = array_keys(Sabre_DAV_XMLUtil::parseProperties($dom->firstChild));
 
-        $hrefElems = $dom->getElementsByTagNameNS('urn:DAV','href');
+        $hrefElems = $dom->getElementsByTagNameNS('DAV:','href');
         $propertyList = array();
 
         foreach($hrefElems as $elem) {
@@ -282,9 +281,12 @@ class Sabre_CardDAV_Plugin extends Sabre_DAV_ServerPlugin {
 
         }
 
+        $prefer = $this->server->getHTTPPRefer();
+
         $this->server->httpResponse->sendStatus(207);
         $this->server->httpResponse->setHeader('Content-Type','application/xml; charset=utf-8');
-        $this->server->httpResponse->sendBody($this->server->generateMultiStatus($propertyList));
+        $this->server->httpResponse->setHeader('Vary','Brief,Prefer');
+        $this->server->httpResponse->sendBody($this->server->generateMultiStatus($propertyList, $prefer['return-minimal']));
 
     }
 
@@ -348,9 +350,9 @@ class Sabre_CardDAV_Plugin extends Sabre_DAV_ServerPlugin {
 
         try {
 
-            $vobj = Sabre_VObject_Reader::read($data);
+            $vobj = VObject\Reader::read($data);
 
-        } catch (Sabre_VObject_ParseException $e) {
+        } catch (VObject\ParseException $e) {
 
             throw new Sabre_DAV_Exception_UnsupportedMediaType('This resource only supports valid vcard data. Parse error: ' . $e->getMessage());
 
@@ -360,6 +362,10 @@ class Sabre_CardDAV_Plugin extends Sabre_DAV_ServerPlugin {
             throw new Sabre_DAV_Exception_UnsupportedMediaType('This collection can only support vcard objects.');
         }
 
+        if (!isset($vobj->UID)) {
+            throw new Sabre_DAV_Exception_BadRequest('Every vcard must have an UID.');
+        }
+
     }
 
 
@@ -424,9 +430,12 @@ class Sabre_CardDAV_Plugin extends Sabre_DAV_ServerPlugin {
 
         }
 
+        $prefer = $this->server->getHTTPPRefer();
+
         $this->server->httpResponse->sendStatus(207);
         $this->server->httpResponse->setHeader('Content-Type','application/xml; charset=utf-8');
-        $this->server->httpResponse->sendBody($this->server->generateMultiStatus($result));
+        $this->server->httpResponse->setHeader('Vary','Brief,Prefer');
+        $this->server->httpResponse->sendBody($this->server->generateMultiStatus($result, $prefer['return-minimal']));
 
     }
 
@@ -440,7 +449,7 @@ class Sabre_CardDAV_Plugin extends Sabre_DAV_ServerPlugin {
      */
     public function validateFilters($vcardData, array $filters, $test) {
 
-        $vcard = Sabre_VObject_Reader::read($vcardData);
+        $vcard = VObject\Reader::read($vcardData);
 
         if (!$filters) return true;
 
@@ -615,6 +624,30 @@ class Sabre_CardDAV_Plugin extends Sabre_DAV_ServerPlugin {
 
     }
 
+    /**
+     * This event is triggered after webdav-properties have been retrieved.
+     *
+     * @return bool
+     */
+    public function afterGetProperties($uri, &$properties) {
+
+        // If the request was made using the SOGO connector, we must rewrite
+        // the content-type property. By default SabreDAV will send back
+        // text/x-vcard; charset=utf-8, but for SOGO we must strip that last
+        // part.
+        if (!isset($properties[200]['{DAV:}getcontenttype']))
+            return;
+
+        if (strpos($this->server->httpRequest->getHeader('User-Agent'),'Thunderbird')===false) {
+            return;
+        }
+
+        if (strpos($properties[200]['{DAV:}getcontenttype'],'text/x-vcard')===0) {
+            $properties[200]['{DAV:}getcontenttype'] = 'text/x-vcard';
+        }
+
+    }
+
     /**
      * This method is used to generate HTML output for the
      * Sabre_DAV_Browser_Plugin. This allows us to generate an interface users

3rdparty/Sabre/CardDAV/VCFExportPlugin.php

@@ -0,0 +1,107 @@
+<?php
+
+use Sabre\VObject;
+
+/**
+ * VCF Exporter
+ *
+ * This plugin adds the ability to export entire address books as .vcf files.
+ * This is useful for clients that don't support CardDAV yet. They often do
+ * support vcf files.
+ *
+ * @package Sabre
+ * @subpackage CardDAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @author Thomas Tanghus (http://tanghus.net/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class Sabre_CardDAV_VCFExportPlugin extends Sabre_DAV_ServerPlugin {
+
+    /**
+     * Reference to Server class
+     *
+     * @var Sabre_DAV_Server
+     */
+    private $server;
+
+    /**
+     * Initializes the plugin and registers event handlers
+     *
+     * @param Sabre_DAV_Server $server
+     * @return void
+     */
+    public function initialize(Sabre_DAV_Server $server) {
+
+        $this->server = $server;
+        $this->server->subscribeEvent('beforeMethod',array($this,'beforeMethod'), 90);
+
+    }
+
+    /**
+     * 'beforeMethod' event handles. This event handles intercepts GET requests ending
+     * with ?export
+     *
+     * @param string $method
+     * @param string $uri
+     * @return bool
+     */
+    public function beforeMethod($method, $uri) {
+
+        if ($method!='GET') return;
+        if ($this->server->httpRequest->getQueryString()!='export') return;
+
+        // splitting uri
+        list($uri) = explode('?',$uri,2);
+
+        $node = $this->server->tree->getNodeForPath($uri);
+
+        if (!($node instanceof Sabre_CardDAV_IAddressBook)) return;
+
+        // Checking ACL, if available.
+        if ($aclPlugin = $this->server->getPlugin('acl')) {
+            $aclPlugin->checkPrivileges($uri, '{DAV:}read');
+        }
+
+        $this->server->httpResponse->setHeader('Content-Type','text/directory');
+        $this->server->httpResponse->sendStatus(200);
+
+        $nodes = $this->server->getPropertiesForPath($uri, array(
+            '{' . Sabre_CardDAV_Plugin::NS_CARDDAV . '}address-data',
+        ),1);
+
+        $this->server->httpResponse->sendBody($this->generateVCF($nodes));
+
+        // Returning false to break the event chain
+        return false;
+
+    }
+
+    /**
+     * Merges all vcard objects, and builds one big vcf export
+     *
+     * @param array $nodes
+     * @return string
+     */
+    public function generateVCF(array $nodes) {
+
+        $output = "";
+
+        foreach($nodes as $node) {
+
+            if (!isset($node[200]['{' . Sabre_CardDAV_Plugin::NS_CARDDAV . '}address-data'])) {
+                continue;
+            }
+            $nodeData = $node[200]['{' . Sabre_CardDAV_Plugin::NS_CARDDAV . '}address-data'];
+
+            // Parsing this node so VObject can clean up the output.
+            $output .=
+               VObject\Reader::read($nodeData)->serialize();
+
+        }
+
+        return $output;
+
+    }
+
+}

3rdparty/Sabre/CardDAV/Version.php

@@ -16,7 +16,7 @@ class Sabre_CardDAV_Version {
     /**
      * Full version number
      */
-    const VERSION = '1.6.3';
+    const VERSION = '1.7.0';
 
     /**
      * Stability : alpha, beta, stable

3rdparty/Sabre/CardDAV/includes.php

@@ -26,6 +26,7 @@ include __DIR__ . '/IDirectory.php';
 include __DIR__ . '/Plugin.php';
 include __DIR__ . '/Property/SupportedAddressData.php';
 include __DIR__ . '/UserAddressBooks.php';
+include __DIR__ . '/VCFExportPlugin.php';
 include __DIR__ . '/Version.php';
 include __DIR__ . '/AddressBook.php';
 include __DIR__ . '/Card.php';

3rdparty/Sabre/DAV/Browser/Plugin.php

@@ -338,7 +338,7 @@ class Sabre_DAV_Browser_Plugin extends Sabre_DAV_ServerPlugin {
             $icon = '';
 
             if ($this->enableAssets) {
-                $node = $parent->getChild($name);
+                $node = $this->server->tree->getNodeForPath(($path?$path.'/':'') . $name);
                 foreach(array_reverse($this->iconMap) as $class=>$iconName) {
 
                     if ($node instanceof $class) {

3rdparty/Sabre/DAV/Client.php

@@ -16,12 +16,25 @@
  */
 class Sabre_DAV_Client {
 
+    /**
+     * The propertyMap is a key-value array.
+     *
+     * If you use the propertyMap, any {DAV:}multistatus responses with the
+     * proeprties listed in this array, will automatically be mapped to a
+     * respective class.
+     *
+     * The {DAV:}resourcetype property is automatically added. This maps to
+     * Sabre_DAV_Property_ResourceType
+     *
+     * @var array
+     */
     public $propertyMap = array();
 
     protected $baseUri;
     protected $userName;
     protected $password;
     protected $proxy;
+    protected $trustedCertificates;
 
     /**
      * Basic authentication
@@ -87,6 +100,18 @@ class Sabre_DAV_Client {
 
     }
 
+    /**
+     * Add trusted root certificates to the webdav client.
+     *
+     * The parameter certificates should be a absulute path to a file
+     * which contains all trusted certificates
+     *
+     * @param string $certificates
+     */
+    public function addTrustedCertificates($certificates) {
+        $this->trustedCertificates = $certificates;
+    }
+
     /**
      * Does a PROPFIND request
      *
@@ -143,13 +168,13 @@ class Sabre_DAV_Client {
         if ($depth===0) {
             reset($result);
             $result = current($result);
-            return $result[200];
+            return isset($result[200])?$result[200]:array();
         }
 
         $newResult = array();
         foreach($result as $href => $statusList) {
 
-            $newResult[$href] = $statusList[200];
+            $newResult[$href] = isset($statusList[200])?$statusList[200]:array();
 
         }
 
@@ -279,6 +304,10 @@ class Sabre_DAV_Client {
             CURLOPT_MAXREDIRS => 5,
         );
 
+        if($this->trustedCertificates) {
+            $curlSettings[CURLOPT_CAINFO] = $this->trustedCertificates;
+        }
+
         switch ($method) {
             case 'HEAD' :
 
@@ -363,10 +392,30 @@ class Sabre_DAV_Client {
 
         if ($response['statusCode']>=400) {
             switch ($response['statusCode']) {
+                case 400 :
+                    throw new Sabre_DAV_Exception_BadRequest('Bad request');
+                case 401 :
+                    throw new Sabre_DAV_Exception_NotAuthenticated('Not authenticated');
+                case 402 :
+                    throw new Sabre_DAV_Exception_PaymentRequired('Payment required');
+                case 403 :
+                    throw new Sabre_DAV_Exception_Forbidden('Forbidden');
                 case 404:
-                    throw new Sabre_DAV_Exception_NotFound('Resource ' . $url . ' not found.');
-                    break;
-
+                    throw new Sabre_DAV_Exception_NotFound('Resource not found.');
+                case 405 :
+                    throw new Sabre_DAV_Exception_MethodNotAllowed('Method not allowed');
+                case 409 :
+                    throw new Sabre_DAV_Exception_Conflict('Conflict');
+                case 412 :
+                    throw new Sabre_DAV_Exception_PreconditionFailed('Precondition failed');
+                case 416 :
+                    throw new Sabre_DAV_Exception_RequestedRangeNotSatisfiable('Requested Range Not Satisfiable');
+                case 500 :
+                    throw new Sabre_DAV_Exception('Internal server error');
+                case 501 :
+                    throw new Sabre_DAV_Exception_NotImplemented('Not Implemented');
+                case 507 :
+                    throw new Sabre_DAV_Exception_InsufficientStorage('Insufficient storage');
                 default:
                     throw new Sabre_DAV_Exception('HTTP error response. (errorcode ' . $response['statusCode'] . ')');
             }
@@ -386,6 +435,7 @@ class Sabre_DAV_Client {
      * @param array $settings
      * @return array
      */
+    // @codeCoverageIgnoreStart
     protected function curlRequest($url, $settings) {
 
         $curl = curl_init($url);
@@ -399,6 +449,7 @@ class Sabre_DAV_Client {
         );
 
     }
+    // @codeCoverageIgnoreEnd
 
     /**
      * Returns the full url based on the given url (which may be relative). All
@@ -453,19 +504,17 @@ class Sabre_DAV_Client {
      */
     public function parseMultiStatus($body) {
 
-        $body = Sabre_DAV_XMLUtil::convertDAVNamespace($body);
-
         $responseXML = simplexml_load_string($body, null, LIBXML_NOBLANKS | LIBXML_NOCDATA);
         if ($responseXML===false) {
             throw new InvalidArgumentException('The passed data is not valid XML');
         }
 
-        $responseXML->registerXPathNamespace('d', 'urn:DAV');
+        $responseXML->registerXPathNamespace('d', 'DAV:');
 
         $propResult = array();
 
         foreach($responseXML->xpath('d:response') as $response) {
-            $response->registerXPathNamespace('d', 'urn:DAV');
+            $response->registerXPathNamespace('d', 'DAV:');
             $href = $response->xpath('d:href');
             $href = (string)$href[0];
 
@@ -473,7 +522,7 @@ class Sabre_DAV_Client {
 
             foreach($response->xpath('d:propstat') as $propStat) {
 
-                $propStat->registerXPathNamespace('d', 'urn:DAV');
+                $propStat->registerXPathNamespace('d', 'DAV:');
                 $status = $propStat->xpath('d:status');
                 list($httpVersion, $statusCode, $message) = explode(' ', (string)$status[0],3);
 

3rdparty/Sabre/DAV/Collection.php

@@ -17,9 +17,13 @@ abstract class Sabre_DAV_Collection extends Sabre_DAV_Node implements Sabre_DAV_
     /**
      * Returns a child object, by its name.
      *
-     * This method makes use of the getChildren method to grab all the child nodes, and compares the name.
+     * This method makes use of the getChildren method to grab all the child
+     * nodes, and compares the name.
      * Generally its wise to override this, as this can usually be optimized
      *
+     * This method must throw Sabre_DAV_Exception_NotFound if the node does not
+     * exist.
+     *
      * @param string $name
      * @throws Sabre_DAV_Exception_NotFound
      * @return Sabre_DAV_INode

3rdparty/Sabre/DAV/Directory.php

@@ -1,17 +0,0 @@
-<?php
-
-/**
- * Directory class
- *
- * This class is now deprecated in favor of the Sabre_DAV_Collection class.
- *
- * @package Sabre
- * @subpackage DAV
- * @deprecated Use Sabre_DAV_Collection instead
- * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-abstract class Sabre_DAV_Directory extends Sabre_DAV_Collection {
-}
-

3rdparty/Sabre/DAV/Exception/ReportNotSupported.php

@@ -1,7 +1,7 @@
 <?php
 
 /**
- * ReportNotImplemented
+ * ReportNotSupported
  *
  * This exception is thrown when the client requested an unknown report through the REPORT method
  *
@@ -11,7 +11,7 @@
  * @author Evert Pot (http://www.rooftopsolutions.nl/) 
  * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
  */
-class Sabre_DAV_Exception_ReportNotImplemented extends Sabre_DAV_Exception_NotImplemented {
+class Sabre_DAV_Exception_ReportNotSupported extends Sabre_DAV_Exception_Forbidden {
 
     /**
      * This method allows the exception to include additional information into the WebDAV error response