o Rh@sdZddlZddlZddlmZddlmZmZm Z m Z m Z da da eZdZddZdd Zd d Zd d ZddZGdddZddZddZddZdS)a6 This file contains private functionality for interacting with the AWS Common Runtime library (awscrt) in boto3. All code contained within this file is for internal usage within this project and is not intended for external consumption. All interfaces contained within are subject to abrupt breaking changes. N)Session)BotocoreCRTCredentialsWrapperBotocoreCRTRequestSerializerCRTTransferManageracquire_crt_s3_process_lockcreate_s3_crt_clientboto3cCs|d|d}tdi|S)zCreate a CRT S3 Client for file transfer. Instantiating many of these may lead to degraded performance or system resource exhaustion. T)regionuse_sslcrt_credentials_providerN)r)sessionconfig region_name cred_providercreate_crt_client_kwargsr r K/home/air/sanwanet/backup_V2/venv/lib/python3.10/site-packages/boto3/crt.py_create_crt_client*s rcCst||ddS)N)r endpoint_url)r)r rr r r_create_crt_request_serializer8s rcKs(t|}|}tt|||||||S)zFCreate boto3 wrapper class to manage crt lock reference and S3 client.)rto_crt_credentials_provider CRTS3Clientr)r rr credentialslockkwargs cred_wrapperrr r r_create_crt_s3_client>s rcCsLtt}|dur dSt}|jj}|}t||}t|||||}||fS)N)NN)rPROCESS_LOCK_NAMErmetar_get_credentialsrr)clientrrr rr serializer s3_clientr r r#_initialize_crt_transfer_primativesLs  r#cCsXt tdurt||\}}|a|aWdtSWdtS1s%wYtSN)CLIENT_CREATION_LOCK CRT_S3_CLIENTr#BOTOCORE_CRT_SERIALIZER)r rr!r"r r rget_crt_s3_client_s  r(c@seZdZdZddZdS)ra This wrapper keeps track of our underlying CRT client, the lock used to acquire it and the region we've used to instantiate the client. Due to limitations in the existing CRT interfaces, we can only make calls in a single region and does not support redirects. We track the region to ensure we don't use the CRT client when a successful request cannot be made. cCs||_||_||_||_dSr$) crt_client process_lockr r)selfr)r*r rr r r__init__xs zCRTS3Client.__init__N)__name__ __module__ __qualname____doc__r,r r r rrns rcCsF|durdS|}|durdSt||j}|jj|jk}|o"|S)z Boto3 client must use same signing region and credentials as the CRT_S3_CLIENT singleton. Otherwise fallback to classic. NF)rcompare_identityget_frozen_credentialsrrrr )r crt_s3_client boto3_credsis_same_identityis_same_regionr r ris_crt_compatible_requests r7cCsLz|}Wn tjjyYdSw|j|jko#|j|jko#|j|jk}|S)NF) botocore exceptionsNoCredentialsError access_key access_key_id secret_keysecret_access_keytoken session_token)r4 crt_s3_creds crt_credsis_matching_identityr r rr1s    r1cCs$t||}t||rt|jtSdS)z8Create a CRTTransferManager for optimized data transfer.N)r(r7rr)r')r rr3r r rcreate_crt_transfer_managers  rD)r0 threadingbotocore.exceptionsr8botocore.sessionrs3transfer.crtrrrrrr&r'Lockr%rrrrr#r(rr7r1rDr r r rs$