/* (non-Javadoc) * @see com.amazonaws.services.s3.AmazonS3Client#initiateMultipartUpload(com.amazonaws.services.s3.model.InitiateMultipartUploadRequest) */ @Override public InitiateMultipartUploadResult initiateMultipartUpload( InitiateMultipartUploadRequest initiateMultipartUploadRequest) throws AmazonClientException, AmazonServiceException { appendUserAgent(initiateMultipartUploadRequest, USER_AGENT); // Generate a one-time use symmetric key and initialize a cipher to encrypt object data SecretKey envelopeSymmetricKey = EncryptionUtils.generateOneTimeUseSymmetricKey(); Cipher symmetricCipher = EncryptionUtils.createSymmetricCipher( envelopeSymmetricKey, Cipher.ENCRYPT_MODE, cryptoConfig.getCryptoProvider(), null); if (cryptoConfig.getStorageMode() == CryptoStorageMode.ObjectMetadata) { EncryptionMaterials encryptionMaterials = encryptionMaterialsProvider.getEncryptionMaterials(); // Encrypt the envelope symmetric key byte[] encryptedEnvelopeSymmetricKey = EncryptionUtils.getEncryptedSymmetricKey( envelopeSymmetricKey, encryptionMaterials, cryptoConfig.getCryptoProvider()); // Store encryption info in metadata ObjectMetadata metadata = EncryptionUtils.updateMetadataWithEncryptionInfo( initiateMultipartUploadRequest, encryptedEnvelopeSymmetricKey, symmetricCipher, encryptionMaterials.getMaterialsDescription()); // Update the request's metadata to the updated metadata initiateMultipartUploadRequest.setObjectMetadata(metadata); } InitiateMultipartUploadResult result = super.initiateMultipartUpload(initiateMultipartUploadRequest); EncryptedUploadContext encryptedUploadContext = new EncryptedUploadContext( initiateMultipartUploadRequest.getBucketName(), initiateMultipartUploadRequest.getKey(), envelopeSymmetricKey); encryptedUploadContext.setNextInitializationVector(symmetricCipher.getIV()); encryptedUploadContext.setFirstInitializationVector(symmetricCipher.getIV()); currentMultipartUploadSecretKeys.put(result.getUploadId(), encryptedUploadContext); return result; }
public static String xs3_init_multi_upload(String xs3_objname, int file_size, String file_type) { AWSCredentials xs3_credentials = new BasicAWSCredentials(xs3_access_key, xs3_secret_key); ClientConfiguration xs3_clientconfig = new ClientConfiguration(); xs3_clientconfig.setProtocol(Protocol.HTTP); S3ClientOptions xs3_client_options = new S3ClientOptions(); xs3_client_options.setPathStyleAccess(true); xs3_client = new AmazonS3Client(xs3_credentials, xs3_clientconfig); xs3_client.setEndpoint(xs3_endpoint); xs3_client.setS3ClientOptions(xs3_client_options); try { InitiateMultipartUploadRequest xs3_multi_req = new InitiateMultipartUploadRequest(xs3_bucketname, xs3_objname); xs3_multi_req.setCannedACL(CannedAccessControlList.PublicRead); ObjectMetadata xs3_meta = new ObjectMetadata(); xs3_meta.setContentType(file_type); xs3_multi_req.setObjectMetadata(xs3_meta); InitiateMultipartUploadResult xs3_multi_res = xs3_client.initiateMultipartUpload(xs3_multi_req); String xs3_multi_uploadid = xs3_multi_res.getUploadId(); String json_urls = gen_part_url(xs3_multi_uploadid, file_size, xs3_objname, file_type); return json_urls; } catch (AmazonServiceException ase) { System.out.println("xs3_svr_error_message:" + ase.getMessage()); System.out.println("xs3_svr_status_code: " + ase.getStatusCode()); System.out.println("xs3_svr_error_code: " + ase.getErrorCode()); System.out.println("xs3_svr_error_type: " + ase.getErrorType()); System.out.println("xs3_svr_request_id: " + ase.getRequestId()); } catch (AmazonClientException ace) { System.out.println("xs3_clt_error_message:" + ace.getMessage()); } return null; }