Upload File with Safe characters in Key causes Forbidden Error

[Playmountain710]

Hi,
i am trying to Upload files in our bucket. The file Key is looking something like that:
"file_(test)_file.csv"

But the Upload is failing with Error "Fobidden" - "The request signature we calculated does not match the signature you provided. Check your key and signing method"

Here is my code for the upload:

 _logger.LogInformation($"Write {obj.Name} to S3 Bucket {settings.ObsBucketName}");
            var credentials = new BasicAWSCredentials(settings.ObsAccessKey, settings.ObsSecretKey);
            var config = new AmazonS3Config()
            {
                ServiceURL = settings.ObsAccessPoint,
                ForcePathStyle = true
            };
            var client = new AmazonS3Client(credentials, config);
            var response = new S3ResponseDto();

        try
        {
            var uploadRequest = new TransferUtilityUploadRequest()
            {
                InputStream = obj.InputStream,
                Key = obj.Name,
                BucketName = obj.BucketName,
                CannedACL = S3CannedACL.NoACL,
                //DisableMD5Stream = true,
                //DisablePayloadSigning = true
            };

            // initialise the transfer/upload tools
            var transferUtility = new TransferUtility(client);

            // initiate the file upload
            await transferUtility.UploadAsync(uploadRequest);

            response.StatusCode = 201;
            response.Message = $"{obj.Name} has been uploaded successfully";
        }
        catch (AmazonS3Exception s3Ex)
        {
            response.StatusCode = (int)s3Ex.StatusCode;
            response.Message = s3Ex.Message;
        }
        catch (Exception ex)
        {
            response.StatusCode = 500;
            response.Message = ex.Message;
        }
        return response;

The expected behaviour is a successful upload of the file.
The parenthesis is on the safe character list.
Uploading the file only with underscores _ is working!
Do you have any ideas how to get this problem solved?

Best Regards,
Fabian

[dscpinheiro]

Sorry for the delay in the response, but what version of S3 are you using? Also, what does settings.ObsAccessPoint refer to in your environment?

Using AWSSDK.S3 3.7.105.1, I was able to upload that file name to my access point:

var config = new AmazonS3Config
{
    ForcePathStyle = true
};

var client = new AmazonS3Client(config);
var uploadRequest = new TransferUtilityUploadRequest
{
    FilePath = "C:\\Temp\\file_(test)_file.png",
    Key = "file_(test)_file.png",
    BucketName = "myap-random-string-s3alias",
    CannedACL = S3CannedACL.NoACL,
};

var transferUtility = new TransferUtility(client);
await transferUtility.UploadAsync(uploadRequest);