Overwrite files if they exist.

VsGallery.Core/IConfiguration.cs

@@ -5,7 +5,7 @@ public interface IStorageConfiguration
         string VsixStorageDirectory { get; }
         string UploadDirectory { get; }
         string UploadMaxFileSize { get; }
-
+        bool OverwriteFiles { get; }
     }
 
     public interface IGalleryConfiguration

VsGallery.WebService/Configuration.cs

@@ -59,6 +59,20 @@ public string UploadMaxFileSize
                 this[uploadMaxFileSizePropertyName] = value;
             }
         }
+
+        const string overwriteFilesPropertyName = "OverwriteFiles";
+        [ConfigurationProperty(overwriteFilesPropertyName, DefaultValue = "false", IsRequired = false)]
+        public bool OverwriteFiles
+        {
+            get
+            {
+                return (Boolean)this[overwriteFilesPropertyName];
+            }
+            set
+            {
+                this[overwriteFilesPropertyName] = value;
+            }
+        }
     }
 
     public class GalleryConfiguration : ConfigurationElement, IGalleryConfiguration

VsGallery.WebService/Controllers/UploadController.cs

@@ -41,15 +41,25 @@ public IHttpActionResult AddOrUpdateVsix()
             // Validate the uploaded image(optional)
 
             // Get the complete file path
-            foreach(var httpFile in httpFiles)
+            foreach (var httpFile in httpFiles)
             {
                 var fileSavePath = Path.Combine(_configuration.UploadDirectory, httpFile.FileName);
 
+                var destinationPath = Path.Combine(_configuration.VsixStorageDirectory, httpFile.FileName);
+
+                if (File.Exists(destinationPath))
+                {
+                    if (!_configuration.OverwriteFiles)
+                        return BadRequest($"File {httpFile.FileName} already exists.");
+
+                    File.Delete(destinationPath);
+                }
+
                 // Save the uploaded file to "UploadedFiles" folder
                 httpFile.SaveAs(fileSavePath);
 
                 // Now move all the files uploaded to the main storage directory
-                File.Move(fileSavePath, Path.Combine(_configuration.VsixStorageDirectory, httpFile.FileName));
+                File.Move(fileSavePath, destinationPath);
             }
 
             return Ok();

VsGallery.WebService/Web.config

@@ -10,8 +10,8 @@
     </configSections>
 
     <VsGallerySettings>
-        <Storage VsixStorageDirectory="~/App_Data/VsixStorage" UploadDirectory="~/App_Data/VsixUploads" />
-        <Gallery Guid="54F7969C-F561-4B16-9D6B-7325EDE0A3C1" Title="Super Productive Gallery" TrackDownloads="True" TrackRatings="True" />
+        <Storage VsixStorageDirectory="~/App_Data/VsixStorage" UploadDirectory="~/App_Data/VsixUploads" OverwriteFiles="false" />
+      <Gallery Guid="54F7969C-F561-4B16-9D6B-7325EDE0A3C1" Title="Super Productive Gallery" TrackDownloads="True" TrackRatings="True" />
     </VsGallerySettings>
 
   <system.web>

vsgallery/Configuration.cs

@@ -101,6 +101,7 @@ public class StorageConfiguration : BaseConfiguration, IStorageConfiguration
         public string VsixStorageDirectory => Get<string>(nameof(VsixStorageDirectory));
         public string UploadDirectory => Get<string>(nameof(UploadDirectory));
         public string UploadMaxFileSize => Get<string>(nameof(UploadMaxFileSize));
+        public bool OverwriteFiles => Get<bool>(nameof(OverwriteFiles));
 
         public StorageConfiguration(KeyDataCollection data) : base(data) { }
     }