Added restricted file extensions for uploads

Teknik/Areas/API/Controllers/APIv1Controller.cs

@@ -90,7 +90,7 @@ namespace Teknik.Areas.API.Controllers
                             // Check content type restrictions (Only for encrypting server side
                             if (model.encrypt || !string.IsNullOrEmpty(model.key))
                             {
-                                if (Config.UploadConfig.RestrictedContentTypes.Contains(model.contentType))
+                                if (Config.UploadConfig.RestrictedContentTypes.Contains(model.contentType) || Config.UploadConfig.RestrictedExtensions.Contains(fileExt))
                                 {
                                     return Json(new { error = new { message = "File Type Not Allowed" } });
                                 }

Teknik/Areas/Upload/Controllers/UploadController.cs

@@ -88,7 +88,7 @@ namespace Teknik.Areas.Upload.Controllers
                         // Check content type restrictions (Only for encrypting server side
                         if (encrypt)
                         {
-                            if (Config.UploadConfig.RestrictedContentTypes.Contains(fileType))
+                            if (Config.UploadConfig.RestrictedContentTypes.Contains(fileType) || Config.UploadConfig.RestrictedExtensions.Contains(fileExt))
                             {
                                 return Json(new { error = new { message = "File Type Not Allowed" } });
                             }

Utilities/Configuration/UploadConfig.cs

@@ -35,6 +35,7 @@ namespace Teknik.Configuration
         public int ClamPort { get; set; }
         // Content Type Restrictions
         public List<string> RestrictedContentTypes { get; set; }
+        public List<string> RestrictedExtensions { get; set; }
 
         public UploadConfig()
         {
@@ -61,6 +62,7 @@ namespace Teknik.Configuration
             ClamServer = "localhost";
             ClamPort = 3310;
             RestrictedContentTypes = new List<string>();
+            RestrictedExtensions = new List<string>();
         }
     }
 }