+ protected function doPreparation()
+ {
+ // showstream requires a nickname
+ $nickname_arg = $this->trimmed('nickname');
+ $nickname = common_canonical_nickname($nickname_arg);
+
+ // Permanent redirect on non-canonical nickname
+ if ($nickname_arg !== $nickname) {
+ $args = array('nickname' => $nickname);
+ if ($this->arg('page') && $this->arg('page') != 1) {
+ $args['page'] = $this->arg['page'];
+ }
+ common_redirect(common_local_url($this->getActionName(), $args), 301);
+ }
+
+ try {
+ $user = User::getByNickname($nickname);
+ } catch (NoSuchUserException $e) {
+ $group = Local_group::getKV('nickname', $nickname);
+ if ($group instanceof Local_group) {
+ common_redirect($group->getProfile()->getUrl());
+ }
+
+ // No user nor group found, throw the NoSuchUserException again
+ throw $e;
+ }
+
+ $this->target = $user->getProfile();
+ }
+