public Stream GetNonWrapperBaseStream()
{
Stream stream = this;
do
{
PartialWrapperStream partialWrapperStream = stream as PartialWrapperStream;
if (partialWrapperStream != null)
{
return(partialWrapperStream);
}
stream = (stream as WrapperStream).BaseStream;
}while (stream is WrapperStream);
return(stream);
}
static List<byte[]> computePartHashs(Stream stream)
{
long initialPosition = stream.Position;
List<byte[]> hashes = new List<byte[]>();
while (stream.Position < stream.Length)
{
Stream wrapper = new PartialWrapperStream(stream, MB);
byte[] currentHash = CryptoUtilFactory.CryptoInstance.ComputeSHA256Hash(wrapper);
hashes.Add(currentHash);
}
stream.Seek(initialPosition, SeekOrigin.Begin);
return hashes;
}
internal override void Execute()
{
FileInfo fileInfo = new FileInfo(filePath);
FileStream fileStream = File.OpenRead(filePath);
string uploadId = null;
try
{
this.currentUploadProgressArgs = new StreamTransferProgressArgs(0, 0, fileInfo.Length);
long partSize = CalculatePartSize(fileInfo.Length);
InitiateMultipartUploadRequest initiateRequest = new InitiateMultipartUploadRequest()
{
AccountId = this.options.AccountId,
ArchiveDescription = archiveDescription,
VaultName = vaultName,
PartSize = partSize
};
((Amazon.Runtime.Internal.IAmazonWebServiceRequest)initiateRequest).AddBeforeRequestHandler(new ArchiveTransferManager.UserAgentPostFix("MultiUpload").UserAgentRequestEventHandlerSync);
InitiateMultipartUploadResponse initiateResponse = this.manager.GlacierClient.InitiateMultipartUpload(initiateRequest);
uploadId = initiateResponse.UploadId;
List<string> partTreeHashs = new List<string>();
long currentPosition = 0;
while (currentPosition < fileInfo.Length)
{
long length = partSize;
if (currentPosition + partSize > fileInfo.Length)
{
length = fileInfo.Length - currentPosition;
}
Stream partStream = new PartialWrapperStream(fileStream, length);
string checksum = TreeHashGenerator.CalculateTreeHash(partStream);
partTreeHashs.Add(checksum);
UploadMultipartPartRequest uploadRequest = new UploadMultipartPartRequest()
{
AccountId = this.options.AccountId,
Checksum = checksum,
Range = "bytes " + currentPosition + "-" + (currentPosition + length - 1) + "/*",
UploadId = uploadId,
VaultName = vaultName,
Body = partStream
};
uploadRequest.StreamTransferProgress += this.ProgressCallback;
((Amazon.Runtime.Internal.IAmazonWebServiceRequest)uploadRequest).AddBeforeRequestHandler(new ArchiveTransferManager.UserAgentPostFix("MultiUpload").UserAgentRequestEventHandlerSync);
this.manager.GlacierClient.UploadMultipartPart(uploadRequest);
currentPosition += partSize;
}
string totalFileChecksum = TreeHashGenerator.CalculateTreeHash(partTreeHashs);
string archiveSize = fileInfo.Length.ToString(CultureInfo.InvariantCulture);
CompleteMultipartUploadRequest compRequest = new CompleteMultipartUploadRequest()
{
AccountId = this.options.AccountId,
ArchiveSize = archiveSize,
VaultName = vaultName,
Checksum = totalFileChecksum,
UploadId = uploadId
};
((Amazon.Runtime.Internal.IAmazonWebServiceRequest)compRequest).AddBeforeRequestHandler(new ArchiveTransferManager.UserAgentPostFix("MultiUpload").UserAgentRequestEventHandlerSync);
CompleteMultipartUploadResponse completeMultipartUploadResponse = this.manager.GlacierClient.CompleteMultipartUpload(compRequest);
string archiveId = completeMultipartUploadResponse.ArchiveId;
this.UploadResult = new UploadResult(archiveId, totalFileChecksum);
}
catch (Exception)
{
// If we got an unrecoverable then abort the upload.
if (!string.IsNullOrEmpty(uploadId))
{
AbortMultipartUploadRequest abortRequest = new AbortMultipartUploadRequest()
{
AccountId = this.options.AccountId,
VaultName = this.vaultName,
UploadId = uploadId
};
((Amazon.Runtime.Internal.IAmazonWebServiceRequest)abortRequest).AddBeforeRequestHandler(new ArchiveTransferManager.UserAgentPostFix("MultiUpload").UserAgentRequestEventHandlerSync);
this.manager.GlacierClient.AbortMultipartUpload(abortRequest);
}
throw;
}
finally
{
try { fileStream.Close(); }
catch (Exception) { }
}
}