Add activity for unshare from group

Signed-off-by: Joas Schilling <coding@schilljs.com>

2 files changed, 37 insertions, 0 deletions

diff --git a/apps/dav/lib/CalDAV/Activity.php b/apps/dav/lib/CalDAV/Activity.php
index fbdc7b054d7..10945f887bc 100644
--- a/apps/dav/lib/CalDAV/Activity.php
+++ b/apps/dav/lib/CalDAV/Activity.php
@@ -39,6 +39,7 @@ class Activity implements IExtension {
 	const SUBJECT_UPDATE = 'calendar_update';
 	const SUBJECT_DELETE = 'calendar_delete';
 	const SUBJECT_UNSHARE_USER = 'calendar_user_unshare';
+	const SUBJECT_UNSHARE_GROUP = 'calendar_group_unshare';
 
 	/**
 	 * Subject keys for translation of the subjections
@@ -148,6 +149,8 @@ class Activity implements IExtension {
 				return (string) $l->t('You unshared calendar %2$s from %1$s', $params);
 			case self::SUBJECT_UNSHARE_USER . '_by':
 				return (string) $l->t('%1$s unshared calendar %2$s from themselves', $params);
+			case self::SUBJECT_UNSHARE_GROUP . '_you':
+				return (string) $l->t('You unshared calendar %2$s from group %1$s', $params);
 		}
 
 		return false;
@@ -168,8 +171,11 @@ class Activity implements IExtension {
 		if ($app === self::APP) {
 			switch ($text) {
 				case self::SUBJECT_ADD:
+				case self::SUBJECT_ADD . '_self':
 				case self::SUBJECT_DELETE:
+				case self::SUBJECT_DELETE . '_self':
 				case self::SUBJECT_UPDATE:
+				case self::SUBJECT_UPDATE . '_self':
 				case self::SUBJECT_UNSHARE_USER:
 				case self::SUBJECT_UNSHARE_USER . '_you':
 				case self::SUBJECT_UNSHARE_USER . '_by':
@@ -177,6 +183,11 @@ class Activity implements IExtension {
 						0 => 'username',
 						//1 => 'calendar',
 					];
+				case self::SUBJECT_UNSHARE_GROUP . '_you':
+					return [
+						//0 => 'group',
+						//1 => 'calendar',
+					];
 			}
 		}
 
diff --git a/apps/dav/lib/CalDAV/CalDavBackend.php b/apps/dav/lib/CalDAV/CalDavBackend.php
index 25cb3ce484d..a707b2c5afa 100644
--- a/apps/dav/lib/CalDAV/CalDavBackend.php
+++ b/apps/dav/lib/CalDAV/CalDavBackend.php
@@ -1833,6 +1833,32 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
 						);
 					$aM->publish($event);
 				}
+			} else if ($principal[1] === 'groups') {
+				$this->triggerActivityUnshareGroup($principal[2], $event, $properties);
+
+				$event->setAffectedUser($currentUser)
+					->setSubject(
+						Activity::SUBJECT_UNSHARE_GROUP . '_you',
+						[
+							$principal[2],
+							$properties['{DAV:}displayname'],
+						]
+					);
+				$aM->publish($event);
+			}
+		}
+	}
+
+	protected function triggerActivityUnshareGroup($gid, IEvent $event, array $properties) {
+		$gM = \OC::$server->getGroupManager();
+
+		$group = $gM->get($gid);
+		if ($group instanceof IGroup) {
+			foreach ($group->getUsers() as $user) {
+				// Exclude current user
+				if ($user !== $event->getAuthor()) {
+					$this->triggerActivityUnshareUser($user->getUID(), $event, $properties);
+				}
 			}
 		}
 	}