[stable10] Email autocomplete for link shares without local users

apps/dav/lib/CardDAV/AddressBookImpl.php

@@ -241,9 +241,13 @@ protected function vCard2Array($uri, VCard $vCard) {
 				$result[$property->name] = $property->getValue();
 			}
 		}
-		if ($this->addressBookInfo['principaluri'] === 'principals/system/system' &&
-			$this->addressBookInfo['uri'] === 'system') {
-			$result['isLocalSystemBook'] = true;
+		if ($this->addressBookInfo['principaluri'] === 'principals/system/system' ) {
+			$result['isSystemBook'] = true;
+			if ($this->addressBookInfo['uri'] === 'system') {
+				$result['isLocalSystemBook'] = true;
+			} else {
+				$result['isFederatedSystemBook'] = true;
+			}
 		}
 		return $result;
 	}

core/ajax/share.php

@@ -307,12 +307,23 @@ function usersInGroup($gid, $search = '', $limit = -1, $offset = 0) {
 			if (isset($_GET['search'])) {
 				$cm = OC::$server->getContactsManager();
 
-				$userEnumerationAllowed = OC::$server->getConfig()
-					->getAppValue('core', 'shareapi_allow_share_dialog_user_enumeration', 'yes') == 'yes';
+				$config = OC::$server->getConfig();
+				$userEnumerationAllowed = $config
+					->getAppValue('core', 'shareapi_allow_share_dialog_user_enumeration', 'yes') === 'yes';
+				$pattern = (string)$_GET['search'];
+				$searchConfig =  new \OCP\Util\UserSearch($config);
+				if (!$searchConfig->isSearchable($pattern)) {
+					OC_JSON::error();
+					return;
+				}
 
-				if (!is_null($cm) && $cm->isEnabled() && $userEnumerationAllowed) {
-					$contacts = $cm->search((string)$_GET['search'], ['FN', 'EMAIL']);
+				if ($cm !== null && $cm->isEnabled() && $userEnumerationAllowed) {
+					$contacts = $cm->search($pattern, ['FN', 'EMAIL']);
 					foreach ($contacts as $contact) {
+						// We don't want contacts from system address books
+						if (isset($contact['isSystemBook'])) {
+							continue;
+						}
 						if (!isset($contact['EMAIL'])) {
 							continue;
 						}

core/js/sharedialogmailview.js

@@ -186,15 +186,37 @@
 				containerCssClass: 'emailPrivateLinkForm--dropDown',
 				tags: true,
 				tokenSeparators:[","],
+				xhr: null,
 				query: function(query) {
 					// directly from search
-					query.callback({
-						results: [{
-							"id"       : query.term,
-							"text"     : query.term,
-							"disabled" : !_this.validateEmail(query.term)
-						}]
-					});
+					var data = [{
+						"id": query.term,
+						"text" : query.term
+					}];
+
+					// return query data ASAP
+					query.callback({results: data});
+
+					if (query.term.length >= OC.getCapabilities().files_sharing.search_min_length) {
+						if (this.xhr != null)
+							this.xhr.abort();
+
+						var xhr = $.get(OC.generateUrl('core/ajax/share.php'), {
+							'fetch' : 'getShareWithEmail',
+							'search': query.term
+						}).done(function(result) {
+							// enrich with share results
+							ajaxData  = _.map(result.data, function(item) {
+								return {
+									'id'   : item.email,
+									'text' : item.displayname + ' (' + item.email + ')'
+								}
+							});
+
+							query.callback({results: data.concat(ajaxData)});
+						})
+						this.xhr = xhr;
+					}
 				}
 			}).on("change", function(e) {
 				if (e.added)