static List <byte[]> computePartHashs(Stream stream) { long initialPosition = stream.Position; SHA256 sha = SHA256.Create(); List <byte[]> hashes = new List <byte[]>(); while (stream.Position < stream.Length) { PartStreamWrapper wrapper = new PartStreamWrapper(stream, MB); byte[] currentHash = sha.ComputeHash(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 }; initiateRequest.BeforeRequestEvent += new UserAgentPostFix("MultiUpload").UserAgentRequestEventHandlerSync; InitiateMultipartUploadResult initiateResult = this.manager.GlacierClient.InitiateMultipartUpload(initiateRequest).InitiateMultipartUploadResult; uploadId = initiateResult.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; } PartStreamWrapper partStream = new PartStreamWrapper(fileStream, length); string checksum = TreeHashGenerator.CalculateTreeHash(partStream); partTreeHashs.Add(checksum); UploadMultipartPartRequest uploadRequest = new UploadMultipartPartRequest { AccountId = this.options.AccountId, Checksum = checksum, Body = partStream, Range = ("bytes " + currentPosition + "-" + (currentPosition + length - 1) + "/*"), UploadId = uploadId, VaultName = vaultName }; uploadRequest.StreamTransferProgress += this.ProgressCallback; uploadRequest.BeforeRequestEvent += new UserAgentPostFix("MultiUpload").UserAgentRequestEventHandlerSync; this.manager.GlacierClient.UploadMultipartPart(uploadRequest); currentPosition += partSize; } string totalFileChecksum = TreeHashGenerator.CalculateTreeHash(partTreeHashs); string archiveSize = fileInfo.Length.ToString(); CompleteMultipartUploadRequest compRequest = new CompleteMultipartUploadRequest { AccountId = this.options.AccountId, ArchiveSize = archiveSize, VaultName = vaultName, Checksum = totalFileChecksum, UploadId = uploadId }; compRequest.BeforeRequestEvent += new UserAgentPostFix("MultiUpload").UserAgentRequestEventHandlerSync; CompleteMultipartUploadResult completeMultipartUploadResult = this.manager.GlacierClient.CompleteMultipartUpload(compRequest).CompleteMultipartUploadResult; string archiveId = completeMultipartUploadResult.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 }; abortRequest.BeforeRequestEvent += new UserAgentPostFix("MultiUpload").UserAgentRequestEventHandlerSync; this.manager.GlacierClient.AbortMultipartUpload(abortRequest); } throw; } finally { try { fileStream.Close(); } catch (Exception) { } } }