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-rw-r--r--lib/private/Share20/DefaultShareProvider.php4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/private/Share20/DefaultShareProvider.php b/lib/private/Share20/DefaultShareProvider.php
index fe6472c31a0..e4ae26be13d 100644
--- a/lib/private/Share20/DefaultShareProvider.php
+++ b/lib/private/Share20/DefaultShareProvider.php
@@ -329,6 +329,10 @@ class DefaultShareProvider implements IShareProvider {
$group = $this->groupManager->get($share->getSharedWith());
$user = $this->userManager->get($recipient);
+ if (is_null($group)) {
+ throw new ProviderException('Group "' . $share->getSharedWith() . '" does not exist');
+ }
+
if (!$group->inGroup($user)) {
throw new ProviderException('Recipient not in receiving group');
}