Username autocomplete option in admin menue now also toggles autocomp…

…lete for email input (share by e-mail) #26504

(cherry picked from commit 861011c) Backport: #1760

core/ajax/share.php

@@ -212,7 +212,11 @@
 			$result = array();
 			if (isset($_GET['search'])) {
 				$cm = OC::$server->getContactsManager();
-				if (!is_null($cm) && $cm->isEnabled()) {
+
+				$userEnumerationAllowed = OC::$server->getConfig()
+					->getAppValue('core', 'shareapi_allow_share_dialog_user_enumeration', 'no') == 'yes';
+
+				if (!is_null($cm) && $cm->isEnabled() && $userEnumerationAllowed) {
 					$contacts = $cm->search((string)$_GET['search'], array('FN', 'EMAIL'));
 					foreach ($contacts as $contact) {
 						if (!isset($contact['EMAIL'])) {