[BUG] Azure batch delete blobs fails if blob contains cyrillic characters

Describe the bug Consider the following blob name which is uploaded successfully to Azure - здраве-и-красота-от-природатаjpg–xfgqfvhj.axp.jpg Deleting it using BlobBatchClient.DeleteBlobsAsync returns Azure.RequestFailedException and blobs are not deleted. Deleting other blobs having the same name structure but containing only latin characters are deleted successfully.

Expected behavior Delete selected blobs.

Actual behavior An exception is thrown:

Azure.RequestFailedException: Invalid response Status: 202 (Accepted)

Headers: Transfer-Encoding: chunked Server: Windows-Azure-Blob/1.0,Microsoft-HTTPAPI/2.0 x-ms-request-id: ca75dfea-301e-0037-034f-797a43000000 x-ms-version: 2020-08-04 x-ms-client-request-id: 92f5a687-8b59-4782-afff-8cd7f89b0ca3 Date: Thu, 15 Jul 2021 08:01:05 GMT Content-Type: multipart/mixed; boundary=batchresponse_34a11e24-f92f-4988-95fe-d61c91ab93c2

—> System.InvalidOperationException: Expected 2 responses for the batch request, not 1. at Azure.Storage.Blobs.Specialized.BlobBatchClient.UpdateOperationResponses(IList1 messages, Response rawResponse, Stream responseContent, String responseContentType, Boolean throwOnAnyFailure, Boolean async, CancellationToken cancellationToken) --- End of inner exception stack trace --- at Azure.Storage.Blobs.Specialized.BlobBatchClient.UpdateOperationResponses(IList1 messages, Response rawResponse, Stream responseContent, String responseContentType, Boolean throwOnAnyFailure, Boolean async, CancellationToken cancellationToken) at Azure.Storage.Blobs.Specialized.BlobBatchClient.SubmitBatchInternal(BlobBatch batch, Boolean throwOnAnyFailure, Boolean async, CancellationToken cancellationToken) at Azure.Storage.Blobs.Specialized.BlobBatchClient.DeleteBlobsInteral(IEnumerable1 blobUris, DeleteSnapshotsOption snapshotsOption, Boolean async, CancellationToken cancellationToken) at Azure.Storage.Blobs.Specialized.BlobBatchClient.DeleteBlobsAsync(IEnumerable1 blobUris, DeleteSnapshotsOption snapshotsOption, CancellationToken cancellationToken) at Smartalize.Web.Services.Implementations.StorageService.UnAssociateProductMedia(IEnumerable1 oldEntities, IEnumerable1 currentEntities, BlobBatchClient batchClient, BlobContainerClient container) in

To Reproduce

1. Create a file with name - здраве-и-красота-от-природатаjpg–xfgqfvhj.axp.jpg
2. Upload it to an Azure container
3. Try to delete it using BlobBatchClient.DeleteBlobsAsync(IEnumerable<Uri>, DeleteSnapshotsOption, CancellationToken) method

Environment:

• Azure.Storage.Blobs 12.9.1, Azure.Storage.Blobs.Batch 12.9.1
• .NET SDK (reflecting any global.json): Version: 5.0.302 Commit: c005824e35

Runtime Environment: OS Name: Windows OS Version: 10.0.19043 OS Platform: Windows RID: win10-x64 Base Path: C:\Program Files\dotnet\sdk\5.0.302\

Host (useful for support): Version: 5.0.8 Commit: 35964c9215

• Visual Studio 16.10.3

[gmantri]

@intenzive - I too think so. Considering the REST API accepts only container name and blob name, SDK should provide an override to specify string instead of URI.

[gmantri]

I posted an answer on your Stack Overflow question as well. Pasting the same answer here for completeness.

private static string connectionString =
    "DefaultEndpointsProtocol=https;AccountName=account-name;AccountKey=account-key==";
private static string containerName = "container-name";

static async Task Main(string[] args)
{
    BlobServiceClient blobServiceClient = new BlobServiceClient(connectionString);
    BlobBatchClient batchClient = new BlobBatchClient(blobServiceClient);
    
    List<string> blobNames = new List<string>()
    {
        "здраве-и-красота-от-природатаjpg--xfgqfvhj.axp.webp",
        "thumbs/здраве-и-красота-от-природатаjpg--xfgqfvhj.axp.webp"
    };
    BlobContainerClient containerClient = blobServiceClient.GetBlobContainerClient(containerName);
    List<BlobClient> blobClients = blobNames.Select(b => containerClient.GetBlobClient(b)).ToList();
    List<Uri> blobsToBeDeleted = blobClients.Select(b => new Uri(Uri.EscapeUriString(b.Uri.AbsoluteUri))).ToList();
    await batchClient.DeleteBlobsAsync(blobsToBeDeleted);
}