nextcloud / server

			throw new \InvalidArgumentException();

		}

		if (!isset($parsedParameters['user'])) {

			// External user via public link share

			$subject = str_replace('{user}', $this->activityLang->t('"remote user"'), $subject);

		}

		$this->setSubjects($event, $subject, $parsedParameters);

			$event->setSubject($event->getSubject() . '_enc', $event->getSubjectParameters());

		}

		if (!isset($parsedParameters['user'])) {

			// External user via public link share

			$subject = str_replace('{user}', $this->activityLang->t('"remote user"'), $subject);

		}

		$this->setSubjects($event, $subject, $parsedParameters);