Whitespace updates and use CleanFilename everywhere

Fixed
can now create with folders.
Save file and changes.
rename fielname. (not copying)

and added a check for existing filename, to prevent owerwriting existing stylesheet file.

src/Umbraco.Web/WebServices/SaveFileController.cs

@@ -39,13 +39,13 @@ namespace Umbraco.Web.WebServices
         [HttpPost]
         public JsonResult SavePartialViewMacro(string filename, string oldName, string contents)
         {
-            var svce = (FileService) Services.FileService;
+            var svce = (FileService)Services.FileService;
 
             return SavePartialView(svce,
                 filename, oldName, contents,
                 "MacroPartials/",
                 (s, n) => s.GetPartialViewMacro(n),
-                (s, v) => s.ValidatePartialViewMacro((PartialView) v),
+                (s, v) => s.ValidatePartialViewMacro((PartialView)v),
                 (s, v) => s.SavePartialViewMacro(v));
         }
 
@@ -59,13 +59,13 @@ namespace Umbraco.Web.WebServices
         [HttpPost]
         public JsonResult SavePartialView(string filename, string oldName, string contents)
         {
-            var svce = (FileService) Services.FileService;
+            var svce = (FileService)Services.FileService;
 
             return SavePartialView(svce,
                 filename, oldName, contents,
                 "Partials/",
                 (s, n) => s.GetPartialView(n),
-                (s, v) => s.ValidatePartialView((PartialView) v),
+                (s, v) => s.ValidatePartialView((PartialView)v),
                 (s, v) => s.SavePartialView(v));
         }
 
@@ -77,9 +77,7 @@ namespace Umbraco.Web.WebServices
             Func<IFileService, IPartialView, Attempt<IPartialView>> save)
         {
             // sanitize input - partial view names have an extension
-            filename = filename
+            filename = CleanFilename(filename);
-                .Replace('\\', '/')
-                .TrimStart('/');
 
             // sharing the editor with partial views & partial view macros,
             // using path prefix to differenciate,
@@ -206,11 +204,9 @@ namespace Umbraco.Web.WebServices
         public JsonResult SaveScript(string filename, string oldName, string contents)
         {
             // sanitize input - script names have an extension
-            filename = filename
+            filename = CleanFilename(filename);
-                .Replace('\\', '/')
-                .TrimStart('/');
 
-            var svce = (FileService) Services.FileService;
+            var svce = (FileService)Services.FileService;
             var script = svce.GetScriptByName(oldName);
             if (script == null)
                 script = new Script(filename);
@@ -245,12 +241,18 @@ namespace Umbraco.Web.WebServices
         public JsonResult SaveStylesheet(string filename, string oldName, string contents)
         {
             // sanitize input - stylesheet names have no extension
-            filename = filename
+            var svce = (FileService)Services.FileService;
-                .Replace('\\', '/')
+
-                .TrimStart('/')
+            filename = CleanFilename(filename);
-                .EnsureEndsWith(".css");
+            oldName = CleanFilename(oldName);
+
+            if (filename != oldName)
+            {
+                var stylesheetExists = svce.GetStylesheetByName(filename);
+                if (stylesheetExists != null)
+                    return Failed(ui.Text("speechBubbles", "cssErrorText"), "A file named '" + filename + ".css' already exists.");
+            }
 
-            var svce = (FileService) Services.FileService;
             var stylesheet = svce.GetStylesheetByName(oldName);
             if (stylesheet == null)
                 stylesheet = new Stylesheet(filename);
@@ -281,6 +283,14 @@ namespace Umbraco.Web.WebServices
                 });
         }
 
+        private static string CleanFilename(string filename)
+        {
+            return filename
+                .Replace('\\', '/')
+                .TrimStart('/')
+                .EnsureEndsWith(".css");
+        }
+
         /// <summary>
         /// Returns a successful message
         /// </summary>

src/Umbraco.Web/umbraco.presentation/umbraco/settings/stylesheet/editstylesheet.aspx.cs

@@ -63,7 +63,7 @@ namespace umbraco.cms.presentation.settings.stylesheet
             TreeSyncPath = DeepLink.GetTreePathFromFilePath(filename).TrimEnd(".css");
 
             // name derives from path, without the .css extension, clean for xss
-            NameTxt.Text = stylesheet.Path.TrimEnd(".css").CleanForXss('\\', '/');
+            NameTxt.Text = stylesheet.Path.TrimEnd(".css").CleanForXss('\\', '/').Replace("\\", "/");
 
             if (IsPostBack == false)
             {