Implemented sharing api for CalDAV.

7 files changed, 316 insertions, 7 deletions

diff --git a/apps/calendar/appinfo/app.php b/apps/calendar/appinfo/app.php
index 9ae255853d5..00787055787 100644
--- a/apps/calendar/appinfo/app.php
+++ b/apps/calendar/appinfo/app.php
@@ -4,7 +4,11 @@ OC::$CLASSPATH['OC_Calendar_App'] = 'apps/calendar/lib/app.php';
 OC::$CLASSPATH['OC_Calendar_Calendar'] = 'apps/calendar/lib/calendar.php';
 OC::$CLASSPATH['OC_Calendar_Object'] = 'apps/calendar/lib/object.php';
 OC::$CLASSPATH['OC_Calendar_Hooks'] = 'apps/calendar/lib/hooks.php';
-OC::$CLASSPATH['OC_Connector_Sabre_CalDAV'] = 'apps/calendar/lib/connector_sabre.php';
+OC::$CLASSPATH['OC_Connector_Sabre_CalDAV'] = 'apps/calendar/lib/sabre/backend.php';
+OC::$CLASSPATH['OC_Connector_Sabre_CalDAV_CalendarRoot'] = 'apps/calendar/lib/sabre/calendarroot.php';
+OC::$CLASSPATH['OC_Connector_Sabre_CalDAV_UserCalendars'] = 'apps/calendar/lib/sabre/usercalendars.php';
+OC::$CLASSPATH['OC_Connector_Sabre_CalDAV_Calendar'] = 'apps/calendar/lib/sabre/calendar.php';
+OC::$CLASSPATH['OC_Connector_Sabre_CalDAV_CalendarObject'] = 'apps/calendar/lib/sabre/object.php';
 OC::$CLASSPATH['OC_Calendar_Repeat'] = 'apps/calendar/lib/repeat.php';
 OC::$CLASSPATH['OC_Calendar_Share'] = 'apps/calendar/lib/share.php';
 OC::$CLASSPATH['OC_Search_Provider_Calendar'] = 'apps/calendar/lib/search.php';
diff --git a/apps/calendar/appinfo/remote.php b/apps/calendar/appinfo/remote.php
index dd605072ce7..f499d909666 100644
--- a/apps/calendar/appinfo/remote.php
+++ b/apps/calendar/appinfo/remote.php
@@ -21,15 +21,15 @@ $principalBackend = new OC_Connector_Sabre_Principal();
 $caldavBackend    = new OC_Connector_Sabre_CalDAV();
 
 // Root nodes
-$Sabre_CalDAV_Principal_Collection = new Sabre_CalDAV_Principal_Collection($principalBackend); 
+$Sabre_CalDAV_Principal_Collection = new Sabre_CalDAV_Principal_Collection($principalBackend);
 $Sabre_CalDAV_Principal_Collection->disableListing = true; // Disable listening
 
-$Sabre_CalDAV_CalendarRootNode = new Sabre_CalDAV_CalendarRootNode($principalBackend, $caldavBackend); 
-$Sabre_CalDAV_CalendarRootNode->disableListing = true; // Disable listening
+$calendarRoot = new OC_Connector_Sabre_CalDAV_CalendarRoot($principalBackend, $caldavBackend);
+$calendarRoot->disableListing = true; // Disable listening
 
-$nodes = array( 
-	$Sabre_CalDAV_Principal_Collection, 
-	$Sabre_CalDAV_CalendarRootNode,
+$nodes = array(
+	$Sabre_CalDAV_Principal_Collection,
+	$calendarRoot,
 	);
 
 // Fire up server
diff --git a/apps/calendar/lib/connector_sabre.php b/apps/calendar/lib/sabre/backend.php
index ac3b26ceb33..ac3b26ceb33 100644
--- a/apps/calendar/lib/connector_sabre.php
+++ b/apps/calendar/lib/sabre/backend.php
diff --git a/apps/calendar/lib/sabre/calendar.php b/apps/calendar/lib/sabre/calendar.php
new file mode 100644
index 00000000000..179be1b2813
--- /dev/null
+++ b/apps/calendar/lib/sabre/calendar.php
@@ -0,0 +1,127 @@
+<?php
+/**
+ * ownCloud - OC_Connector_Sabre_Sabre_CalDAV_Calendar
+ *
+ * @author Thomas Tanghus
+ * @copyright 2012 Thomas Tanghus (thomas@tanghus.net)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * This class overrides Sabre_CalDAV_Calendar::getACL() to return read/write
+ * permissions based on user and shared state and it overrides
+ * Sabre_CalDAV_Calendar::getChild() and Sabre_CalDAV_Calendar::getChildren()
+ * to instantiate OC_Connector_Sabre_CalDAV_CalendarObjects.
+*/
+class OC_Connector_Sabre_CalDAV_Calendar extends Sabre_CalDAV_Calendar {
+
+	/**
+	* 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() {
+
+		$readprincipal = $this->getOwner();
+		$writeprincipal = $this->getOwner();
+		$uid = OC_Calendar_Calendar::extractUserID($this->getOwner());
+
+		if($uid != OCP\USER::getUser()) {
+			$sharedCalendar = OCP\Share::getItemSharedWithBySource('calendar', $this->$calendarInfo['id']);
+			if ($sharedCalendar && ($sharedCalendar['permissions'] & OCP\Share::PERMISSION_READ)) {
+				$readprincipal = 'principals/' . OCP\USER::getUser();
+			}
+			if ($sharedCalendar && ($sharedCalendar['permissions'] & OCP\Share::PERMISSION_UPDATE)) {
+				$writeprincipal = 'principals/' . OCP\USER::getUser();
+			}
+		}
+
+		return array(
+			array(
+				'privilege' => '{DAV:}read',
+				'principal' => $readprincipal,
+				'protected' => true,
+			),
+			array(
+				'privilege' => '{DAV:}write',
+				'principal' => $writeprincipal,
+				'protected' => true,
+			),
+			array(
+				'privilege' => '{DAV:}read',
+				'principal' => $readprincipal . '/calendar-proxy-write',
+				'protected' => true,
+			),
+			array(
+				'privilege' => '{DAV:}write',
+				'principal' => $writeprincipal . '/calendar-proxy-write',
+				'protected' => true,
+			),
+			array(
+				'privilege' => '{DAV:}read',
+				'principal' => $readprincipal . '/calendar-proxy-read',
+				'protected' => true,
+			),
+			array(
+				'privilege' => '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}read-free-busy',
+				'principal' => '{DAV:}authenticated',
+				'protected' => true,
+			),
+
+		);
+
+	}
+
+	/**
+	* Returns a calendar object
+	*
+	* The contained calendar objects are for example Events or Todo's.
+	*
+	* @param string $name
+	* @return Sabre_DAV_ICalendarObject
+	*/
+	public function getChild($name) {
+
+		$obj = $this->caldavBackend->getCalendarObject($this->calendarInfo['id'],$name);
+		if (!$obj) throw new Sabre_DAV_Exception_NotFound('Calendar object not found');
+		return new OC_Connector_Sabre_CalDAV_CalendarObject($this->caldavBackend,$this->calendarInfo,$obj);
+
+	}
+
+	/**
+	* Returns the full list of calendar objects
+	*
+	* @return array
+	*/
+	public function getChildren() {
+
+		$objs = $this->caldavBackend->getCalendarObjects($this->calendarInfo['id']);
+		$children = array();
+		foreach($objs as $obj) {
+			$children[] = new OC_Connector_Sabre_CalDAV_CalendarObject($this->caldavBackend,$this->calendarInfo,$obj);
+		}
+		return $children;
+
+	}
+
+}
\ No newline at end of file
diff --git a/apps/calendar/lib/sabre/calendarroot.php b/apps/calendar/lib/sabre/calendarroot.php
new file mode 100644
index 00000000000..e09731c95b7
--- /dev/null
+++ b/apps/calendar/lib/sabre/calendarroot.php
@@ -0,0 +1,45 @@
+<?php
+/**
+ * ownCloud - OC_Connector_Sabre_CalDAV_CalendarRoot
+ *
+ * @author Thomas Tanghus
+ * @copyright 2012 Thomas Tanghus (thomas@tanghus.net)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * This class overrides Sabre_CalDAV_CalendarRootNode::getChildForPrincipal()
+ * to instantiate OC_Connector_Sabre_CalDAV_UserCalendars.
+*/
+class OC_Connector_Sabre_CalDAV_CalendarRoot extends Sabre_CalDAV_CalendarRootNode {
+
+	/**
+	* This method returns a node for a principal.
+	*
+	* The passed array contains principal information, and is guaranteed to
+	* at least contain a uri item. Other properties may or may not be
+	* supplied by the authentication backend.
+	*
+	* @param array $principal
+	* @return Sabre_DAV_INode
+	*/
+	public function getChildForPrincipal(array $principal) {
+
+		return new OC_Connector_Sabre_CalDAV_UserCalendars($this->principalBackend, $this->caldavBackend, $principal['uri']);
+
+	}
+
+}
\ No newline at end of file
diff --git a/apps/calendar/lib/sabre/object.php b/apps/calendar/lib/sabre/object.php
new file mode 100644
index 00000000000..25954e6ee55
--- /dev/null
+++ b/apps/calendar/lib/sabre/object.php
@@ -0,0 +1,87 @@
+<?php
+/**
+ * ownCloud - OC_Connector_Sabre_CalDAV_CalendarObject
+ *
+ * @author Thomas Tanghus
+ * @copyright 2012 Thomas Tanghus (thomas@tanghus.net)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * This class overrides Sabre_CalDAV_CalendarObject::getACL()
+ * to return read/write permissions based on user and shared state.
+*/
+class OC_Connector_Sabre_CalDAV_CalendarObject extends Sabre_CalDAV_CalendarObject {
+
+	/**
+	* 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() {
+
+		$readprincipal = $this->getOwner();
+		$writeprincipal = $this->getOwner();
+		$uid = OC_Calendar_Calendar::extractUserID($this->getOwner());
+
+		if($uid != OCP\USER::getUser()) {
+			$sharedAddressbook = OCP\Share::getItemSharedWithBySource('calendar', $this->$calendarInfo['id']);
+			if ($sharedAddressbook && ($sharedAddressbook['permissions'] & OCP\Share::PERMISSION_READ)) {
+				$readprincipal = 'principals/' . OCP\USER::getUser();
+			}
+			if ($sharedAddressbook && ($sharedAddressbook['permissions'] & OCP\Share::PERMISSION_UPDATE)) {
+				$writeprincipal = 'principals/' . OCP\USER::getUser();
+			}
+		}
+
+		return array(
+			array(
+				'privilege' => '{DAV:}read',
+				'principal' => $readprincipal,
+				'protected' => true,
+			),
+			array(
+				'privilege' => '{DAV:}write',
+				'principal' => $writeprincipal,
+				'protected' => true,
+			),
+			array(
+				'privilege' => '{DAV:}read',
+				'principal' => $readprincipal . '/calendar-proxy-write',
+				'protected' => true,
+			),
+			array(
+				'privilege' => '{DAV:}write',
+				'principal' => $writeprincipal . '/calendar-proxy-write',
+				'protected' => true,
+			),
+			array(
+				'privilege' => '{DAV:}read',
+				'principal' => $readprincipal . '/calendar-proxy-read',
+				'protected' => true,
+			),
+		);
+
+	}
+
+}
\ No newline at end of file
diff --git a/apps/calendar/lib/sabre/usercalendars.php b/apps/calendar/lib/sabre/usercalendars.php
new file mode 100644
index 00000000000..919f6b27e18
--- /dev/null
+++ b/apps/calendar/lib/sabre/usercalendars.php
@@ -0,0 +1,46 @@
+<?php
+/**
+ * ownCloud - OC_Connector_Sabre_CalDAV_UserCalendars
+ *
+ * @author Thomas Tanghus
+ * @copyright 2012 Thomas Tanghus (thomas@tanghus.net)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * This class overrides Sabre_CalDAV_UserCalendars::getChildren()
+ * to instantiate OC_Connector_Sabre_CalDAV_Calendars.
+*/
+class OC_Connector_Sabre_CalDAV_UserCalendars extends Sabre_CalDAV_UserCalendars {
+
+	/**
+	* Returns a list of calendars
+	*
+	* @return array
+	*/
+	public function getChildren() {
+
+		$calendars = $this->caldavBackend->getCalendarsForUser($this->principalInfo['uri']);
+		$objs = array();
+		foreach($calendars as $calendar) {
+			$objs[] = new OC_Connector_Sabre_CalDAV_Calendar($this->principalBackend, $this->caldavBackend, $calendar);
+		}
+		$objs[] = new Sabre_CalDAV_Schedule_Outbox($this->principalInfo['uri']);
+		return $objs;
+
+	}
+
+}
\ No newline at end of file