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import copy
import botocore.parsers
import botocore.serialize
from botocore.args import ClientArgsCreator, EPRBuiltins
from .config import AioConfig
from .endpoint import DEFAULT_HTTP_SESSION_CLS, AioEndpointCreator
from .parsers import create_parser
from .regions import AioEndpointRulesetResolver
from .signers import AioRequestSigner
class AioClientArgsCreator(ClientArgsCreator):
# NOTE: we override this so we can pull out the custom AioConfig params and
# use an AioEndpointCreator
async def get_client_args(
self,
service_model,
region_name,
is_secure,
endpoint_url,
verify,
credentials,
scoped_config,
client_config,
endpoint_bridge,
auth_token=None,
endpoints_ruleset_data=None,
partition_data=None,
):
final_args = self.compute_client_args(
service_model,
client_config,
endpoint_bridge,
region_name,
endpoint_url,
is_secure,
scoped_config,
)
service_name = final_args['service_name'] # noqa
parameter_validation = final_args['parameter_validation']
endpoint_config = final_args['endpoint_config']
protocol = final_args['protocol']
config_kwargs = final_args['config_kwargs']
s3_config = final_args['s3_config']
partition = endpoint_config['metadata'].get('partition', None)
socket_options = final_args['socket_options']
configured_endpoint_url = final_args['configured_endpoint_url']
signing_region = endpoint_config['signing_region']
endpoint_region_name = endpoint_config['region_name']
account_id_endpoint_mode = config_kwargs['account_id_endpoint_mode']
event_emitter = copy.copy(self._event_emitter)
signer = AioRequestSigner(
service_model.service_id,
signing_region,
endpoint_config['signing_name'],
endpoint_config['signature_version'],
credentials,
event_emitter,
auth_token,
)
config_kwargs['s3'] = s3_config
# aiobotocore addition
if isinstance(client_config, AioConfig):
connector_args = client_config.connector_args
http_session_cls = client_config.http_session_cls
else:
connector_args = None
http_session_cls = DEFAULT_HTTP_SESSION_CLS
new_config = AioConfig(connector_args, **config_kwargs)
endpoint_creator = AioEndpointCreator(event_emitter)
endpoint = endpoint_creator.create_endpoint(
service_model,
region_name=endpoint_region_name,
endpoint_url=endpoint_config['endpoint_url'],
verify=verify,
response_parser_factory=self._response_parser_factory,
timeout=(new_config.connect_timeout, new_config.read_timeout),
max_pool_connections=new_config.max_pool_connections,
http_session_cls=http_session_cls,
proxies=new_config.proxies,
socket_options=socket_options,
client_cert=new_config.client_cert,
proxies_config=new_config.proxies_config,
connector_args=new_config.connector_args,
)
# Emit event to allow service-specific or customer customization of serializer kwargs
event_name = f'creating-serializer.{service_name}'
serializer_kwargs = {
'timestamp_precision': botocore.serialize.TIMESTAMP_PRECISION_DEFAULT
}
await event_emitter.emit(
event_name,
protocol_name=protocol,
service_model=service_model,
serializer_kwargs=serializer_kwargs,
)
serializer = botocore.serialize.create_serializer(
protocol,
parameter_validation,
timestamp_precision=serializer_kwargs['timestamp_precision'],
)
response_parser = create_parser(protocol)
ruleset_resolver = self._build_endpoint_resolver(
endpoints_ruleset_data,
partition_data,
client_config,
service_model,
endpoint_region_name,
region_name,
configured_endpoint_url,
endpoint,
is_secure,
endpoint_bridge,
event_emitter,
credentials,
account_id_endpoint_mode,
)
# Copy the session's user agent factory and adds client configuration.
client_ua_creator = self._session_ua_creator.with_client_config(
new_config
)
supplied_ua = client_config.user_agent if client_config else None
new_config._supplied_user_agent = supplied_ua
return {
'serializer': serializer,
'endpoint': endpoint,
'response_parser': response_parser,
'event_emitter': event_emitter,
'request_signer': signer,
'service_model': service_model,
'loader': self._loader,
'client_config': new_config,
'partition': partition,
'exceptions_factory': self._exceptions_factory,
'endpoint_ruleset_resolver': ruleset_resolver,
'user_agent_creator': client_ua_creator,
}
def _build_endpoint_resolver(
self,
endpoints_ruleset_data,
partition_data,
client_config,
service_model,
endpoint_region_name,
region_name,
endpoint_url,
endpoint,
is_secure,
endpoint_bridge,
event_emitter,
credentials,
account_id_endpoint_mode,
):
if endpoints_ruleset_data is None:
return None
# The legacy EndpointResolver is global to the session, but
# EndpointRulesetResolver is service-specific. Builtins for
# EndpointRulesetResolver must not be derived from the legacy
# endpoint resolver's output, including final_args, s3_config,
# etc.
s3_config_raw = self.compute_s3_config(client_config) or {}
service_name_raw = service_model.endpoint_prefix
# Maintain complex logic for s3 and sts endpoints for backwards
# compatibility.
if service_name_raw in ['s3', 'sts'] or region_name is None:
eprv2_region_name = endpoint_region_name
else:
eprv2_region_name = region_name
resolver_builtins = self.compute_endpoint_resolver_builtin_defaults(
region_name=eprv2_region_name,
service_name=service_name_raw,
s3_config=s3_config_raw,
endpoint_bridge=endpoint_bridge,
client_endpoint_url=endpoint_url,
legacy_endpoint_url=endpoint.host,
credentials=credentials,
account_id_endpoint_mode=account_id_endpoint_mode,
)
# replace with async version
resolver_builtins[EPRBuiltins.ACCOUNT_ID] = (
credentials.get_account_id if credentials else None
)
# Client context params for s3 conflict with the available settings
# in the `s3` parameter on the `Config` object. If the same parameter
# is set in both places, the value in the `s3` parameter takes priority.
if client_config is not None:
client_context = client_config.client_context_params or {}
else:
client_context = {}
if self._is_s3_service(service_name_raw):
client_context.update(s3_config_raw)
sig_version = (
client_config.signature_version
if client_config is not None
else None
)
return AioEndpointRulesetResolver(
endpoint_ruleset_data=endpoints_ruleset_data,
partition_data=partition_data,
service_model=service_model,
builtins=resolver_builtins,
client_context=client_context,
event_emitter=event_emitter,
use_ssl=is_secure,
requested_auth_scheme=sig_version,
)
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