uses the setting for validating rooms renaming - closes #2297

packages/rocketchat-channel-settings/client/views/channelSettings.coffee

@@ -65,7 +65,13 @@ Template.channelSettings.onCreated ->
 			return false
 
 		name = $('input[name=roomName]').val()
-		if not /^[0-9a-z-_]+$/.test name
+
+		try
+			nameValidation = new RegExp '^' + RocketChat.settings.get('UTF8_Names_Validation') + '$'
+		catch
+			nameValidation = new RegExp '^[0-9a-zA-Z-_.]+$'
+
+		if not nameValidation.test name
 			toastr.error t('Invalid_room_name', name)
 			return false
 

packages/rocketchat-channel-settings/server/functions/saveRoomName.coffee

@@ -11,7 +11,12 @@ RocketChat.saveRoomName = (rid, name) ->
 	#if room.u._id isnt Meteor.userId() and not hasPermission
 		throw new Meteor.Error 403, 'Not allowed'
 
-	if not /^[0-9a-z-_]+$/.test name
+	try
+		nameValidation = new RegExp '^' + RocketChat.settings.get('UTF8_Names_Validation') + '$'
+	catch
+		nameValidation = new RegExp '^[0-9a-zA-Z-_.]+$'
+
+	if not nameValidation.test name
 		throw new Meteor.Error 'name-invalid', 'Invalid_room_name', { channelName: name }
 
 	name = _.slugify name

packages/rocketchat-ui-admin/admin/rooms/adminRoomInfo.coffee

@@ -95,7 +95,13 @@ Template.adminRoomInfo.onCreated ->
 			return false
 
 		name = $('input[name=roomName]').val()
-		if not /^[0-9a-z-_]+$/.test name
+
+		try
+			nameValidation = new RegExp '^' + RocketChat.settings.get('UTF8_Names_Validation') + '$'
+		catch
+			nameValidation = new RegExp '^[0-9a-zA-Z-_.]+$'
+
+		if not nameValidation.test name
 			toastr.error t('Invalid_room_name', name)
 			return false