#2928 fixed Azure blob storage basepath issue (#2948)

src/OrchardCore/OrchardCore.FileStorage.AzureBlob/BlobFileStore.cs

@@ -50,6 +50,7 @@ public BlobFileStore(BlobStorageOptions options, IClock clock)
                 try
                 {
                     await _blobContainer.CreateIfNotExistsAsync();
+                    await CreateBasePathIfNotExistsAsync();
                     await _blobContainer.SetPermissionsAsync(new BlobContainerPermissions() { PublicAccess = BlobContainerPublicAccessType.Blob });
                 }
                 catch (Exception ex)
@@ -159,14 +160,13 @@ public async Task<bool> TryCreateDirectoryAsync(string path)
             if (await blob.ExistsAsync())
                 throw new FileStoreException($"Cannot create directory because the path '{path}' already exists and is a file.");
 
-            // Create a directory marker file to make this directory appear when
-            // listing directories.
-            var placeholderBlob = GetBlobReference(this.Combine(path, _directoryMarkerFileName));
-            await placeholderBlob.UploadTextAsync("This is a directory marker file created by Orchard Core. It is safe to delete it.");
+            await CreateDirectoryAsync(path);
 
             return true;
         }
 
+
+
         public async Task<bool> TryDeleteFileAsync(string path)
         {
             await _verifyContainerTask;
@@ -287,5 +287,29 @@ private CloudBlobDirectory GetBlobDirectoryReference(string path)
 
             return blobDirectory;
         }
+
+        private async Task CreateDirectoryAsync(string path)
+        {
+            var placeholderBlob = GetBlobReference(this.Combine(path, _directoryMarkerFileName));
+
+
+            // Create a directory marker file to make this directory appear when
+            // listing directories.
+            await placeholderBlob.UploadTextAsync(
+                "This is a directory marker file created by Orchard Core. It is safe to delete it.");
+        }
+
+        private async Task CreateBasePathIfNotExistsAsync()
+        {
+            if (string.IsNullOrEmpty(_options.BasePath))
+                return;
+
+            var path = string.Empty;
+            var blob = GetBlobReference(path);
+            if (await blob.ExistsAsync())
+                return;
+
+            await CreateDirectoryAsync(path);
+        }
     }
 }