private async Task UploadStreamToS3(Stream inputStream, Guid id)
{
if (!string.IsNullOrEmpty(_s3Options.CertificateSubject))
{
ServicePointManager.ServerCertificateValidationCallback +=
delegate(
object ssender,
X509Certificate certificate,
X509Chain chain,
SslPolicyErrors sslPolicyErrors)
{
if (certificate.Subject.IndexOf(_s3Options.CertificateSubject) > -1)
{
return(true);
}
return(sslPolicyErrors == SslPolicyErrors.None);
};
}
using (var client = _s3StorageClient.GetAmazonS3Client())
{
using (var transferUtility = new TransferUtility(client))
{
var s3Folder = _s3Options.DestinationFolder;
var req = new TransferUtilityUploadRequest
{
BucketName = _s3Options.BucketName
};
var fileName = s3Folder + "/doc-" + id.ToString();
req.Key = fileName;
req.InputStream = inputStream;
await transferUtility.UploadAsync(req);
}
}
}
private async Task DownloadFromS3(FileMetadata fileMetadata, HttpContext context)
{
if (!string.IsNullOrEmpty(_s3Options.CertificateSubject))
{
ServicePointManager.ServerCertificateValidationCallback +=
delegate(
object sender,
X509Certificate certificate,
X509Chain chain,
SslPolicyErrors sslPolicyErrors)
{
if (certificate.Subject.IndexOf(_s3Options.CertificateSubject) > -1)
{
return(true);
}
return(sslPolicyErrors == SslPolicyErrors.None);
};
}
using (var client = _s3StorageClient.GetAmazonS3Client())
{
GetObjectRequest getObjRequest = new GetObjectRequest
{
BucketName = _s3Options.BucketName
};
if (string.IsNullOrWhiteSpace(getObjRequest.BucketName))
{
throw new FrameworkException("Missing S3 storage bucket name.");
}
var s3Folder = _s3Options.DestinationFolder;
if (string.IsNullOrWhiteSpace(s3Folder))
{
throw new FrameworkException("Missing S3 folder name.");
}
getObjRequest.Key = s3Folder + "/doc-" + fileMetadata.FileContentId.ToString();
try
{
using (GetObjectResponse getObjResponse = await client.GetObjectAsync(getObjRequest))
{
fileMetadata.Size = getObjResponse.ContentLength;
await Download(fileMetadata, context, getObjResponse.ResponseStream);
}
}
catch (Exception ex)
{
_logger.Error("S3 storage error. Error: " + ex.ToString());
}
}
}