1055 lines
43 KiB
Python
1055 lines
43 KiB
Python
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# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"). You
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# may not use this file except in compliance with the License. A copy of
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# the License is located at
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#
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# http://aws.amazon.com/apache2.0/
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#
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# or in the "license" file accompanying this file. This file is
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# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
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# ANY KIND, either express or implied. See the License for the specific
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# language governing permissions and limitations under the License.
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"""Builtin event handlers.
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This module contains builtin handlers for events emitted by botocore.
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"""
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import base64
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import logging
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import xml.etree.cElementTree
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import copy
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import re
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import warnings
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import uuid
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from botocore.compat import unquote, json, six, unquote_str, \
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ensure_bytes, get_md5, MD5_AVAILABLE, OrderedDict
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from botocore.docs.utils import AutoPopulatedParam
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from botocore.docs.utils import HideParamFromOperations
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from botocore.docs.utils import AppendParamDocumentation
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from botocore.signers import add_generate_presigned_url
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from botocore.signers import add_generate_presigned_post
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from botocore.signers import add_generate_db_auth_token
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from botocore.exceptions import ParamValidationError
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from botocore.exceptions import AliasConflictParameterError
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from botocore.exceptions import UnsupportedTLSVersionWarning
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from botocore.utils import percent_encode, SAFE_CHARS
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from botocore.utils import switch_host_with_param
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from botocore.utils import hyphenize_service_id
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from botocore import retryhandler
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from botocore import utils
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from botocore import translate
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import botocore
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import botocore.auth
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logger = logging.getLogger(__name__)
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REGISTER_FIRST = object()
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REGISTER_LAST = object()
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# From the S3 docs:
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# The rules for bucket names in the US Standard region allow bucket names
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# to be as long as 255 characters, and bucket names can contain any
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# combination of uppercase letters, lowercase letters, numbers, periods
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# (.), hyphens (-), and underscores (_).
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VALID_BUCKET = re.compile(r'^[a-zA-Z0-9.\-_]{1,255}$')
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VERSION_ID_SUFFIX = re.compile(r'\?versionId=[^\s]+$')
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SERVICE_NAME_ALIASES = {
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'runtime.sagemaker': 'sagemaker-runtime'
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}
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def handle_service_name_alias(service_name, **kwargs):
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return SERVICE_NAME_ALIASES.get(service_name, service_name)
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def check_for_200_error(response, **kwargs):
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# From: http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectCOPY.html
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# There are two opportunities for a copy request to return an error. One
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# can occur when Amazon S3 receives the copy request and the other can
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# occur while Amazon S3 is copying the files. If the error occurs before
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# the copy operation starts, you receive a standard Amazon S3 error. If the
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# error occurs during the copy operation, the error response is embedded in
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# the 200 OK response. This means that a 200 OK response can contain either
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# a success or an error. Make sure to design your application to parse the
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# contents of the response and handle it appropriately.
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#
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# So this handler checks for this case. Even though the server sends a
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# 200 response, conceptually this should be handled exactly like a
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# 500 response (with respect to raising exceptions, retries, etc.)
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# We're connected *before* all the other retry logic handlers, so as long
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# as we switch the error code to 500, we'll retry the error as expected.
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if response is None:
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# A None response can happen if an exception is raised while
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# trying to retrieve the response. See Endpoint._get_response().
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return
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http_response, parsed = response
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if _looks_like_special_case_error(http_response):
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logger.debug("Error found for response with 200 status code, "
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"errors: %s, changing status code to "
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"500.", parsed)
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http_response.status_code = 500
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def _looks_like_special_case_error(http_response):
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if http_response.status_code == 200:
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parser = xml.etree.cElementTree.XMLParser(
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target=xml.etree.cElementTree.TreeBuilder(),
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encoding='utf-8')
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parser.feed(http_response.content)
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root = parser.close()
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if root.tag == 'Error':
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return True
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return False
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def set_operation_specific_signer(context, signing_name, **kwargs):
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""" Choose the operation-specific signer.
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Individual operations may have a different auth type than the service as a
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whole. This will most often manifest as operations that should not be
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authenticated at all, but can include other auth modes such as sigv4
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without body signing.
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"""
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auth_type = context.get('auth_type')
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# Auth type will be None if the operation doesn't have a configured auth
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# type.
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if not auth_type:
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return
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# Auth type will be the string value 'none' if the operation should not
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# be signed at all.
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if auth_type == 'none':
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return botocore.UNSIGNED
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if auth_type.startswith('v4'):
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signature_version = 'v4'
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if signing_name == 's3':
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signature_version = 's3v4'
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# If the operation needs an unsigned body, we set additional context
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# allowing the signer to be aware of this.
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if auth_type == 'v4-unsigned-body':
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context['payload_signing_enabled'] = False
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return signature_version
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def decode_console_output(parsed, **kwargs):
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if 'Output' in parsed:
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try:
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# We're using 'replace' for errors because it is
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# possible that console output contains non string
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# chars we can't utf-8 decode.
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value = base64.b64decode(six.b(parsed['Output'])).decode(
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'utf-8', 'replace')
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parsed['Output'] = value
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except (ValueError, TypeError, AttributeError):
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logger.debug('Error decoding base64', exc_info=True)
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def generate_idempotent_uuid(params, model, **kwargs):
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for name in model.idempotent_members:
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if name not in params:
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params[name] = str(uuid.uuid4())
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logger.debug("injecting idempotency token (%s) into param '%s'." %
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(params[name], name))
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def decode_quoted_jsondoc(value):
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try:
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value = json.loads(unquote(value))
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except (ValueError, TypeError):
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logger.debug('Error loading quoted JSON', exc_info=True)
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return value
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def json_decode_template_body(parsed, **kwargs):
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if 'TemplateBody' in parsed:
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try:
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value = json.loads(
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parsed['TemplateBody'], object_pairs_hook=OrderedDict)
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parsed['TemplateBody'] = value
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except (ValueError, TypeError):
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logger.debug('error loading JSON', exc_info=True)
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def calculate_md5(params, **kwargs):
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request_dict = params
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if request_dict['body'] and 'Content-MD5' not in params['headers']:
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body = request_dict['body']
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if isinstance(body, (bytes, bytearray)):
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binary_md5 = _calculate_md5_from_bytes(body)
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else:
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binary_md5 = _calculate_md5_from_file(body)
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base64_md5 = base64.b64encode(binary_md5).decode('ascii')
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params['headers']['Content-MD5'] = base64_md5
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def _calculate_md5_from_bytes(body_bytes):
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md5 = get_md5(body_bytes)
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return md5.digest()
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def _calculate_md5_from_file(fileobj):
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start_position = fileobj.tell()
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md5 = get_md5()
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for chunk in iter(lambda: fileobj.read(1024 * 1024), b''):
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md5.update(chunk)
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fileobj.seek(start_position)
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return md5.digest()
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def conditionally_calculate_md5(params, context, request_signer, **kwargs):
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"""Only add a Content-MD5 if the system supports it."""
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if MD5_AVAILABLE:
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calculate_md5(params, **kwargs)
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def validate_bucket_name(params, **kwargs):
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if 'Bucket' not in params:
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return
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bucket = params['Bucket']
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if VALID_BUCKET.search(bucket) is None:
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error_msg = (
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'Invalid bucket name "%s": Bucket name must match '
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'the regex "%s"' % (bucket, VALID_BUCKET.pattern))
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raise ParamValidationError(report=error_msg)
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def sse_md5(params, **kwargs):
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"""
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S3 server-side encryption requires the encryption key to be sent to the
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server base64 encoded, as well as a base64-encoded MD5 hash of the
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encryption key. This handler does both if the MD5 has not been set by
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the caller.
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"""
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_sse_md5(params, 'SSECustomer')
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def copy_source_sse_md5(params, **kwargs):
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"""
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S3 server-side encryption requires the encryption key to be sent to the
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server base64 encoded, as well as a base64-encoded MD5 hash of the
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encryption key. This handler does both if the MD5 has not been set by
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the caller specifically if the parameter is for the copy-source sse-c key.
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"""
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_sse_md5(params, 'CopySourceSSECustomer')
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def _sse_md5(params, sse_member_prefix='SSECustomer'):
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if not _needs_s3_sse_customization(params, sse_member_prefix):
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return
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sse_key_member = sse_member_prefix + 'Key'
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sse_md5_member = sse_member_prefix + 'KeyMD5'
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key_as_bytes = params[sse_key_member]
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if isinstance(key_as_bytes, six.text_type):
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key_as_bytes = key_as_bytes.encode('utf-8')
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key_md5_str = base64.b64encode(
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get_md5(key_as_bytes).digest()).decode('utf-8')
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key_b64_encoded = base64.b64encode(key_as_bytes).decode('utf-8')
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params[sse_key_member] = key_b64_encoded
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params[sse_md5_member] = key_md5_str
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def _needs_s3_sse_customization(params, sse_member_prefix):
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return (params.get(sse_member_prefix + 'Key') is not None and
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sse_member_prefix + 'KeyMD5' not in params)
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# NOTE: Retries get registered in two separate places in the botocore
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# code: once when creating the client and once when you load the service
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# model from the session. While at first this handler seems unneeded, it
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# would be a breaking change for the AWS CLI to have it removed. This is
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# because it relies on the service model from the session to create commands
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# and this handler respects operation granular retry logic while the client
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# one does not. If this is ever to be removed the handler, the client
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# will have to respect per-operation level retry configuration.
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def register_retries_for_service(service_data, session,
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service_name, **kwargs):
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loader = session.get_component('data_loader')
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endpoint_prefix = service_data.get('metadata', {}).get('endpointPrefix')
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if endpoint_prefix is None:
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logger.debug("Not registering retry handlers, could not endpoint "
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"prefix from model for service %s", service_name)
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return
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service_id = service_data.get('metadata', {}).get('serviceId')
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service_event_name = hyphenize_service_id(service_id)
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config = _load_retry_config(loader, endpoint_prefix)
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if not config:
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return
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logger.debug("Registering retry handlers for service: %s", service_name)
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handler = retryhandler.create_retry_handler(
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config, endpoint_prefix)
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unique_id = 'retry-config-%s' % service_event_name
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session.register('needs-retry.%s' % service_event_name,
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handler, unique_id=unique_id)
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_register_for_operations(config, session, service_event_name)
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def _load_retry_config(loader, endpoint_prefix):
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original_config = loader.load_data('_retry')
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retry_config = translate.build_retry_config(
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endpoint_prefix, original_config['retry'],
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original_config.get('definitions', {}))
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return retry_config
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def _register_for_operations(config, session, service_event_name):
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# There's certainly a tradeoff for registering the retry config
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# for the operations when the service is created. In practice,
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# there aren't a whole lot of per operation retry configs so
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# this is ok for now.
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for key in config:
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if key == '__default__':
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continue
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handler = retryhandler.create_retry_handler(config, key)
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unique_id = 'retry-config-%s-%s' % (service_event_name, key)
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session.register('needs-retry.%s.%s' % (service_event_name, key),
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handler, unique_id=unique_id)
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def disable_signing(**kwargs):
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"""
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This handler disables request signing by setting the signer
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name to a special sentinel value.
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"""
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return botocore.UNSIGNED
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def add_expect_header(model, params, **kwargs):
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if model.http.get('method', '') not in ['PUT', 'POST']:
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return
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if 'body' in params:
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body = params['body']
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if hasattr(body, 'read'):
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# Any file like object will use an expect 100-continue
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# header regardless of size.
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logger.debug("Adding expect 100 continue header to request.")
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params['headers']['Expect'] = '100-continue'
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def document_copy_source_form(section, event_name, **kwargs):
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if 'request-example' in event_name:
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parent = section.get_section('structure-value')
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param_line = parent.get_section('CopySource')
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value_portion = param_line.get_section('member-value')
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value_portion.clear_text()
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value_portion.write("'string' or {'Bucket': 'string', "
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"'Key': 'string', 'VersionId': 'string'}")
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elif 'request-params' in event_name:
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param_section = section.get_section('CopySource')
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type_section = param_section.get_section('param-type')
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type_section.clear_text()
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type_section.write(':type CopySource: str or dict')
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doc_section = param_section.get_section('param-documentation')
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doc_section.clear_text()
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doc_section.write(
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"The name of the source bucket, key name of the source object, "
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"and optional version ID of the source object. You can either "
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"provide this value as a string or a dictionary. The "
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"string form is {bucket}/{key} or "
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"{bucket}/{key}?versionId={versionId} if you want to copy a "
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"specific version. You can also provide this value as a "
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"dictionary. The dictionary format is recommended over "
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"the string format because it is more explicit. The dictionary "
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"format is: {'Bucket': 'bucket', 'Key': 'key', 'VersionId': 'id'}."
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" Note that the VersionId key is optional and may be omitted."
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)
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def handle_copy_source_param(params, **kwargs):
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"""Convert CopySource param for CopyObject/UploadPartCopy.
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This handler will deal with two cases:
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* CopySource provided as a string. We'll make a best effort
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to URL encode the key name as required. This will require
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parsing the bucket and version id from the CopySource value
|
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and only encoding the key.
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* CopySource provided as a dict. In this case we're
|
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explicitly given the Bucket, Key, and VersionId so we're
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able to encode the key and ensure this value is serialized
|
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and correctly sent to S3.
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"""
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source = params.get('CopySource')
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if source is None:
|
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# The call will eventually fail but we'll let the
|
||
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# param validator take care of this. It will
|
||
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# give a better error message.
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||
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return
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if isinstance(source, six.string_types):
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params['CopySource'] = _quote_source_header(source)
|
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elif isinstance(source, dict):
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params['CopySource'] = _quote_source_header_from_dict(source)
|
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def _quote_source_header_from_dict(source_dict):
|
||
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try:
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bucket = source_dict['Bucket']
|
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key = percent_encode(source_dict['Key'], safe=SAFE_CHARS + '/')
|
||
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version_id = source_dict.get('VersionId')
|
||
|
except KeyError as e:
|
||
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raise ParamValidationError(
|
||
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report='Missing required parameter: %s' % str(e))
|
||
|
final = '%s/%s' % (bucket, key)
|
||
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if version_id is not None:
|
||
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final += '?versionId=%s' % version_id
|
||
|
return final
|
||
|
|
||
|
|
||
|
def _quote_source_header(value):
|
||
|
result = VERSION_ID_SUFFIX.search(value)
|
||
|
if result is None:
|
||
|
return percent_encode(value, safe=SAFE_CHARS + '/')
|
||
|
else:
|
||
|
first, version_id = value[:result.start()], value[result.start():]
|
||
|
return percent_encode(first, safe=SAFE_CHARS + '/') + version_id
|
||
|
|
||
|
|
||
|
def _get_cross_region_presigned_url(request_signer, request_dict, model,
|
||
|
source_region, destination_region):
|
||
|
# The better way to do this is to actually get the
|
||
|
# endpoint_resolver and get the endpoint_url given the
|
||
|
# source region. In this specific case, we know that
|
||
|
# we can safely replace the dest region with the source
|
||
|
# region because of the supported EC2 regions, but in
|
||
|
# general this is not a safe assumption to make.
|
||
|
# I think eventually we should try to plumb through something
|
||
|
# that allows us to resolve endpoints from regions.
|
||
|
request_dict_copy = copy.deepcopy(request_dict)
|
||
|
request_dict_copy['body']['DestinationRegion'] = destination_region
|
||
|
request_dict_copy['url'] = request_dict['url'].replace(
|
||
|
destination_region, source_region)
|
||
|
request_dict_copy['method'] = 'GET'
|
||
|
request_dict_copy['headers'] = {}
|
||
|
return request_signer.generate_presigned_url(
|
||
|
request_dict_copy, region_name=source_region,
|
||
|
operation_name=model.name)
|
||
|
|
||
|
|
||
|
def _get_presigned_url_source_and_destination_regions(request_signer, params):
|
||
|
# Gets the source and destination regions to be used
|
||
|
destination_region = request_signer._region_name
|
||
|
source_region = params.get('SourceRegion')
|
||
|
return source_region, destination_region
|
||
|
|
||
|
|
||
|
def inject_presigned_url_ec2(params, request_signer, model, **kwargs):
|
||
|
# The customer can still provide this, so we should pass if they do.
|
||
|
if 'PresignedUrl' in params['body']:
|
||
|
return
|
||
|
src, dest = _get_presigned_url_source_and_destination_regions(
|
||
|
request_signer, params['body'])
|
||
|
url = _get_cross_region_presigned_url(
|
||
|
request_signer, params, model, src, dest)
|
||
|
params['body']['PresignedUrl'] = url
|
||
|
# EC2 Requires that the destination region be sent over the wire in
|
||
|
# addition to the source region.
|
||
|
params['body']['DestinationRegion'] = dest
|
||
|
|
||
|
|
||
|
def inject_presigned_url_rds(params, request_signer, model, **kwargs):
|
||
|
# SourceRegion is not required for RDS operations, so it's possible that
|
||
|
# it isn't set. In that case it's probably a local copy so we don't need
|
||
|
# to do anything else.
|
||
|
if 'SourceRegion' not in params['body']:
|
||
|
return
|
||
|
|
||
|
src, dest = _get_presigned_url_source_and_destination_regions(
|
||
|
request_signer, params['body'])
|
||
|
|
||
|
# Since SourceRegion isn't actually modeled for RDS, it needs to be
|
||
|
# removed from the request params before we send the actual request.
|
||
|
del params['body']['SourceRegion']
|
||
|
|
||
|
if 'PreSignedUrl' in params['body']:
|
||
|
return
|
||
|
|
||
|
url = _get_cross_region_presigned_url(
|
||
|
request_signer, params, model, src, dest)
|
||
|
params['body']['PreSignedUrl'] = url
|
||
|
|
||
|
|
||
|
def json_decode_policies(parsed, model, **kwargs):
|
||
|
# Any time an IAM operation returns a policy document
|
||
|
# it is a string that is json that has been urlencoded,
|
||
|
# i.e urlencode(json.dumps(policy_document)).
|
||
|
# To give users something more useful, we will urldecode
|
||
|
# this value and json.loads() the result so that they have
|
||
|
# the policy document as a dictionary.
|
||
|
output_shape = model.output_shape
|
||
|
if output_shape is not None:
|
||
|
_decode_policy_types(parsed, model.output_shape)
|
||
|
|
||
|
|
||
|
def _decode_policy_types(parsed, shape):
|
||
|
# IAM consistently uses the policyDocumentType shape to indicate
|
||
|
# strings that have policy documents.
|
||
|
shape_name = 'policyDocumentType'
|
||
|
if shape.type_name == 'structure':
|
||
|
for member_name, member_shape in shape.members.items():
|
||
|
if member_shape.type_name == 'string' and \
|
||
|
member_shape.name == shape_name and \
|
||
|
member_name in parsed:
|
||
|
parsed[member_name] = decode_quoted_jsondoc(
|
||
|
parsed[member_name])
|
||
|
elif member_name in parsed:
|
||
|
_decode_policy_types(parsed[member_name], member_shape)
|
||
|
if shape.type_name == 'list':
|
||
|
shape_member = shape.member
|
||
|
for item in parsed:
|
||
|
_decode_policy_types(item, shape_member)
|
||
|
|
||
|
|
||
|
def parse_get_bucket_location(parsed, http_response, **kwargs):
|
||
|
# s3.GetBucketLocation cannot be modeled properly. To
|
||
|
# account for this we just manually parse the XML document.
|
||
|
# The "parsed" passed in only has the ResponseMetadata
|
||
|
# filled out. This handler will fill in the LocationConstraint
|
||
|
# value.
|
||
|
if 'LocationConstraint' in parsed:
|
||
|
# Response already set - a stub?
|
||
|
return
|
||
|
response_body = http_response.content
|
||
|
parser = xml.etree.cElementTree.XMLParser(
|
||
|
target=xml.etree.cElementTree.TreeBuilder(),
|
||
|
encoding='utf-8')
|
||
|
parser.feed(response_body)
|
||
|
root = parser.close()
|
||
|
region = root.text
|
||
|
parsed['LocationConstraint'] = region
|
||
|
|
||
|
|
||
|
def base64_encode_user_data(params, **kwargs):
|
||
|
if 'UserData' in params:
|
||
|
if isinstance(params['UserData'], six.text_type):
|
||
|
# Encode it to bytes if it is text.
|
||
|
params['UserData'] = params['UserData'].encode('utf-8')
|
||
|
params['UserData'] = base64.b64encode(
|
||
|
params['UserData']).decode('utf-8')
|
||
|
|
||
|
|
||
|
def document_base64_encoding(param):
|
||
|
description = ('**This value will be base64 encoded automatically. Do '
|
||
|
'not base64 encode this value prior to performing the '
|
||
|
'operation.**')
|
||
|
append = AppendParamDocumentation(param, description)
|
||
|
return append.append_documentation
|
||
|
|
||
|
|
||
|
def validate_ascii_metadata(params, **kwargs):
|
||
|
"""Verify S3 Metadata only contains ascii characters.
|
||
|
|
||
|
From: http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingMetadata.html
|
||
|
|
||
|
"Amazon S3 stores user-defined metadata in lowercase. Each name, value pair
|
||
|
must conform to US-ASCII when using REST and UTF-8 when using SOAP or
|
||
|
browser-based uploads via POST."
|
||
|
|
||
|
"""
|
||
|
metadata = params.get('Metadata')
|
||
|
if not metadata or not isinstance(metadata, dict):
|
||
|
# We have to at least type check the metadata as a dict type
|
||
|
# because this handler is called before param validation.
|
||
|
# We'll go ahead and return because the param validator will
|
||
|
# give a descriptive error message for us.
|
||
|
# We might need a post-param validation event.
|
||
|
return
|
||
|
for key, value in metadata.items():
|
||
|
try:
|
||
|
key.encode('ascii')
|
||
|
value.encode('ascii')
|
||
|
except UnicodeEncodeError as e:
|
||
|
error_msg = (
|
||
|
'Non ascii characters found in S3 metadata '
|
||
|
'for key "%s", value: "%s". \nS3 metadata can only '
|
||
|
'contain ASCII characters. ' % (key, value)
|
||
|
)
|
||
|
raise ParamValidationError(
|
||
|
report=error_msg)
|
||
|
|
||
|
|
||
|
def fix_route53_ids(params, model, **kwargs):
|
||
|
"""
|
||
|
Check for and split apart Route53 resource IDs, setting
|
||
|
only the last piece. This allows the output of one operation
|
||
|
(e.g. ``'foo/1234'``) to be used as input in another
|
||
|
operation (e.g. it expects just ``'1234'``).
|
||
|
"""
|
||
|
input_shape = model.input_shape
|
||
|
if not input_shape or not hasattr(input_shape, 'members'):
|
||
|
return
|
||
|
|
||
|
members = [name for (name, shape) in input_shape.members.items()
|
||
|
if shape.name in ['ResourceId', 'DelegationSetId']]
|
||
|
|
||
|
for name in members:
|
||
|
if name in params:
|
||
|
orig_value = params[name]
|
||
|
params[name] = orig_value.split('/')[-1]
|
||
|
logger.debug('%s %s -> %s', name, orig_value, params[name])
|
||
|
|
||
|
|
||
|
def inject_account_id(params, **kwargs):
|
||
|
if params.get('accountId') is None:
|
||
|
# Glacier requires accountId, but allows you
|
||
|
# to specify '-' for the current owners account.
|
||
|
# We add this default value if the user does not
|
||
|
# provide the accountId as a convenience.
|
||
|
params['accountId'] = '-'
|
||
|
|
||
|
|
||
|
def add_glacier_version(model, params, **kwargs):
|
||
|
request_dict = params
|
||
|
request_dict['headers']['x-amz-glacier-version'] = model.metadata[
|
||
|
'apiVersion']
|
||
|
|
||
|
|
||
|
def add_accept_header(model, params, **kwargs):
|
||
|
if params['headers'].get('Accept', None) is None:
|
||
|
request_dict = params
|
||
|
request_dict['headers']['Accept'] = 'application/json'
|
||
|
|
||
|
|
||
|
def add_glacier_checksums(params, **kwargs):
|
||
|
"""Add glacier checksums to the http request.
|
||
|
|
||
|
This will add two headers to the http request:
|
||
|
|
||
|
* x-amz-content-sha256
|
||
|
* x-amz-sha256-tree-hash
|
||
|
|
||
|
These values will only be added if they are not present
|
||
|
in the HTTP request.
|
||
|
|
||
|
"""
|
||
|
request_dict = params
|
||
|
headers = request_dict['headers']
|
||
|
body = request_dict['body']
|
||
|
if isinstance(body, six.binary_type):
|
||
|
# If the user provided a bytes type instead of a file
|
||
|
# like object, we're temporarily create a BytesIO object
|
||
|
# so we can use the util functions to calculate the
|
||
|
# checksums which assume file like objects. Note that
|
||
|
# we're not actually changing the body in the request_dict.
|
||
|
body = six.BytesIO(body)
|
||
|
starting_position = body.tell()
|
||
|
if 'x-amz-content-sha256' not in headers:
|
||
|
headers['x-amz-content-sha256'] = utils.calculate_sha256(
|
||
|
body, as_hex=True)
|
||
|
body.seek(starting_position)
|
||
|
if 'x-amz-sha256-tree-hash' not in headers:
|
||
|
headers['x-amz-sha256-tree-hash'] = utils.calculate_tree_hash(body)
|
||
|
body.seek(starting_position)
|
||
|
|
||
|
|
||
|
def document_glacier_tree_hash_checksum():
|
||
|
doc = '''
|
||
|
This is a required field.
|
||
|
|
||
|
Ideally you will want to compute this value with checksums from
|
||
|
previous uploaded parts, using the algorithm described in
|
||
|
`Glacier documentation <http://docs.aws.amazon.com/amazonglacier/latest/dev/checksum-calculations.html>`_.
|
||
|
|
||
|
But if you prefer, you can also use botocore.utils.calculate_tree_hash()
|
||
|
to compute it from raw file by::
|
||
|
|
||
|
checksum = calculate_tree_hash(open('your_file.txt', 'rb'))
|
||
|
|
||
|
'''
|
||
|
return AppendParamDocumentation('checksum', doc).append_documentation
|
||
|
|
||
|
|
||
|
def document_cloudformation_get_template_return_type(section, event_name, **kwargs):
|
||
|
if 'response-params' in event_name:
|
||
|
template_body_section = section.get_section('TemplateBody')
|
||
|
type_section = template_body_section.get_section('param-type')
|
||
|
type_section.clear_text()
|
||
|
type_section.write('(*dict*) --')
|
||
|
elif 'response-example' in event_name:
|
||
|
parent = section.get_section('structure-value')
|
||
|
param_line = parent.get_section('TemplateBody')
|
||
|
value_portion = param_line.get_section('member-value')
|
||
|
value_portion.clear_text()
|
||
|
value_portion.write('{}')
|
||
|
|
||
|
|
||
|
def switch_host_machinelearning(request, **kwargs):
|
||
|
switch_host_with_param(request, 'PredictEndpoint')
|
||
|
|
||
|
|
||
|
def check_openssl_supports_tls_version_1_2(**kwargs):
|
||
|
import ssl
|
||
|
try:
|
||
|
openssl_version_tuple = ssl.OPENSSL_VERSION_INFO
|
||
|
if openssl_version_tuple < (1, 0, 1):
|
||
|
warnings.warn(
|
||
|
'Currently installed openssl version: %s does not '
|
||
|
'support TLS 1.2, which is required for use of iot-data. '
|
||
|
'Please use python installed with openssl version 1.0.1 or '
|
||
|
'higher.' % (ssl.OPENSSL_VERSION),
|
||
|
UnsupportedTLSVersionWarning
|
||
|
)
|
||
|
# We cannot check the openssl version on python2.6, so we should just
|
||
|
# pass on this conveniency check.
|
||
|
except AttributeError:
|
||
|
pass
|
||
|
|
||
|
|
||
|
def change_get_to_post(request, **kwargs):
|
||
|
# This is useful when we need to change a potentially large GET request
|
||
|
# into a POST with x-www-form-urlencoded encoding.
|
||
|
if request.method == 'GET' and '?' in request.url:
|
||
|
request.headers['Content-Type'] = 'application/x-www-form-urlencoded'
|
||
|
request.method = 'POST'
|
||
|
request.url, request.data = request.url.split('?', 1)
|
||
|
|
||
|
|
||
|
def set_list_objects_encoding_type_url(params, context, **kwargs):
|
||
|
if 'EncodingType' not in params:
|
||
|
# We set this context so that we know it wasn't the customer that
|
||
|
# requested the encoding.
|
||
|
context['encoding_type_auto_set'] = True
|
||
|
params['EncodingType'] = 'url'
|
||
|
|
||
|
|
||
|
def decode_list_object(parsed, context, **kwargs):
|
||
|
# This is needed because we are passing url as the encoding type. Since the
|
||
|
# paginator is based on the key, we need to handle it before it can be
|
||
|
# round tripped.
|
||
|
#
|
||
|
# From the documentation: If you specify encoding-type request parameter,
|
||
|
# Amazon S3 includes this element in the response, and returns encoded key
|
||
|
# name values in the following response elements:
|
||
|
# Delimiter, Marker, Prefix, NextMarker, Key.
|
||
|
_decode_list_object(
|
||
|
top_level_keys=['Delimiter', 'Marker', 'NextMarker'],
|
||
|
nested_keys=[('Contents', 'Key'), ('CommonPrefixes', 'Prefix')],
|
||
|
parsed=parsed,
|
||
|
context=context
|
||
|
)
|
||
|
|
||
|
def decode_list_object_v2(parsed, context, **kwargs):
|
||
|
# From the documentation: If you specify encoding-type request parameter,
|
||
|
# Amazon S3 includes this element in the response, and returns encoded key
|
||
|
# name values in the following response elements:
|
||
|
# Delimiter, Prefix, ContinuationToken, Key, and StartAfter.
|
||
|
_decode_list_object(
|
||
|
top_level_keys=['Delimiter', 'Prefix', 'StartAfter'],
|
||
|
nested_keys=[('Contents', 'Key'), ('CommonPrefixes', 'Prefix')],
|
||
|
parsed=parsed,
|
||
|
context=context
|
||
|
)
|
||
|
|
||
|
def _decode_list_object(top_level_keys, nested_keys, parsed, context):
|
||
|
if parsed.get('EncodingType') == 'url' and \
|
||
|
context.get('encoding_type_auto_set'):
|
||
|
# URL decode top-level keys in the response if present.
|
||
|
for key in top_level_keys:
|
||
|
if key in parsed:
|
||
|
parsed[key] = unquote_str(parsed[key])
|
||
|
# URL decode nested keys from the response if present.
|
||
|
for (top_key, child_key) in nested_keys:
|
||
|
if top_key in parsed:
|
||
|
for member in parsed[top_key]:
|
||
|
member[child_key] = unquote_str(member[child_key])
|
||
|
|
||
|
def convert_body_to_file_like_object(params, **kwargs):
|
||
|
if 'Body' in params:
|
||
|
if isinstance(params['Body'], six.string_types):
|
||
|
params['Body'] = six.BytesIO(ensure_bytes(params['Body']))
|
||
|
elif isinstance(params['Body'], six.binary_type):
|
||
|
params['Body'] = six.BytesIO(params['Body'])
|
||
|
|
||
|
|
||
|
def _add_parameter_aliases(handler_list):
|
||
|
# Mapping of original parameter to parameter alias.
|
||
|
# The key is <service>.<operation>.parameter
|
||
|
# The first part of the key is used for event registration.
|
||
|
# The last part is the original parameter name and the value is the
|
||
|
# alias to expose in documentation.
|
||
|
aliases = {
|
||
|
'ec2.*.Filter': 'Filters',
|
||
|
'logs.CreateExportTask.from': 'fromTime',
|
||
|
'cloudsearchdomain.Search.return': 'returnFields'
|
||
|
}
|
||
|
|
||
|
for original, new_name in aliases.items():
|
||
|
event_portion, original_name = original.rsplit('.', 1)
|
||
|
parameter_alias = ParameterAlias(original_name, new_name)
|
||
|
|
||
|
# Add the handlers to the list of handlers.
|
||
|
# One handler is to handle when users provide the alias.
|
||
|
# The other handler is to update the documentation to show only
|
||
|
# the alias.
|
||
|
parameter_build_event_handler_tuple = (
|
||
|
'before-parameter-build.' + event_portion,
|
||
|
parameter_alias.alias_parameter_in_call,
|
||
|
REGISTER_FIRST
|
||
|
)
|
||
|
docs_event_handler_tuple = (
|
||
|
'docs.*.' + event_portion + '.complete-section',
|
||
|
parameter_alias.alias_parameter_in_documentation)
|
||
|
handler_list.append(parameter_build_event_handler_tuple)
|
||
|
handler_list.append(docs_event_handler_tuple)
|
||
|
|
||
|
|
||
|
class ParameterAlias(object):
|
||
|
def __init__(self, original_name, alias_name):
|
||
|
self._original_name = original_name
|
||
|
self._alias_name = alias_name
|
||
|
|
||
|
def alias_parameter_in_call(self, params, model, **kwargs):
|
||
|
if model.input_shape:
|
||
|
# Only consider accepting the alias if it is modeled in the
|
||
|
# input shape.
|
||
|
if self._original_name in model.input_shape.members:
|
||
|
if self._alias_name in params:
|
||
|
if self._original_name in params:
|
||
|
raise AliasConflictParameterError(
|
||
|
original=self._original_name,
|
||
|
alias=self._alias_name,
|
||
|
operation=model.name
|
||
|
)
|
||
|
# Remove the alias parameter value and use the old name
|
||
|
# instead.
|
||
|
params[self._original_name] = params.pop(self._alias_name)
|
||
|
|
||
|
def alias_parameter_in_documentation(self, event_name, section, **kwargs):
|
||
|
if event_name.startswith('docs.request-params'):
|
||
|
if self._original_name not in section.available_sections:
|
||
|
return
|
||
|
# Replace the name for parameter type
|
||
|
param_section = section.get_section(self._original_name)
|
||
|
param_type_section = param_section.get_section('param-type')
|
||
|
self._replace_content(param_type_section)
|
||
|
|
||
|
# Replace the name for the parameter description
|
||
|
param_name_section = param_section.get_section('param-name')
|
||
|
self._replace_content(param_name_section)
|
||
|
elif event_name.startswith('docs.request-example'):
|
||
|
section = section.get_section('structure-value')
|
||
|
if self._original_name not in section.available_sections:
|
||
|
return
|
||
|
# Replace the name for the example
|
||
|
param_section = section.get_section(self._original_name)
|
||
|
self._replace_content(param_section)
|
||
|
|
||
|
def _replace_content(self, section):
|
||
|
content = section.getvalue().decode('utf-8')
|
||
|
updated_content = content.replace(
|
||
|
self._original_name, self._alias_name)
|
||
|
section.clear_text()
|
||
|
section.write(updated_content)
|
||
|
|
||
|
|
||
|
class ClientMethodAlias(object):
|
||
|
def __init__(self, actual_name):
|
||
|
""" Aliases a non-extant method to an existing method.
|
||
|
|
||
|
:param actual_name: The name of the method that actually exists on
|
||
|
the client.
|
||
|
"""
|
||
|
self._actual = actual_name
|
||
|
|
||
|
def __call__(self, client, **kwargs):
|
||
|
return getattr(client, self._actual)
|
||
|
|
||
|
|
||
|
def remove_subscribe_to_shard(class_attributes, **kwargs):
|
||
|
if 'subscribe_to_shard' in class_attributes:
|
||
|
# subscribe_to_shard requires HTTP 2 support
|
||
|
del class_attributes['subscribe_to_shard']
|
||
|
|
||
|
# This is a list of (event_name, handler).
|
||
|
# When a Session is created, everything in this list will be
|
||
|
# automatically registered with that Session.
|
||
|
|
||
|
BUILTIN_HANDLERS = [
|
||
|
('choose-service-name', handle_service_name_alias),
|
||
|
('getattr.mturk.list_hi_ts_for_qualification_type',
|
||
|
ClientMethodAlias('list_hits_for_qualification_type')),
|
||
|
('before-parameter-build.s3.UploadPart',
|
||
|
convert_body_to_file_like_object, REGISTER_LAST),
|
||
|
('before-parameter-build.s3.PutObject',
|
||
|
convert_body_to_file_like_object, REGISTER_LAST),
|
||
|
('creating-client-class.kinesis', remove_subscribe_to_shard),
|
||
|
('creating-client-class', add_generate_presigned_url),
|
||
|
('creating-client-class.s3', add_generate_presigned_post),
|
||
|
('creating-client-class.iot-data', check_openssl_supports_tls_version_1_2),
|
||
|
('after-call.iam', json_decode_policies),
|
||
|
|
||
|
('after-call.ec2.GetConsoleOutput', decode_console_output),
|
||
|
('after-call.cloudformation.GetTemplate', json_decode_template_body),
|
||
|
('after-call.s3.GetBucketLocation', parse_get_bucket_location),
|
||
|
|
||
|
('before-parameter-build', generate_idempotent_uuid),
|
||
|
|
||
|
('before-parameter-build.s3', validate_bucket_name),
|
||
|
|
||
|
('before-parameter-build.s3.ListObjects',
|
||
|
set_list_objects_encoding_type_url),
|
||
|
('before-parameter-build.s3.ListObjectsV2',
|
||
|
set_list_objects_encoding_type_url),
|
||
|
('before-call.s3.PutBucketTagging', calculate_md5),
|
||
|
('before-call.s3.PutBucketLifecycle', calculate_md5),
|
||
|
('before-call.s3.PutBucketLifecycleConfiguration', calculate_md5),
|
||
|
('before-call.s3.PutBucketCors', calculate_md5),
|
||
|
('before-call.s3.DeleteObjects', calculate_md5),
|
||
|
('before-call.s3.PutBucketReplication', calculate_md5),
|
||
|
('before-call.s3.PutObject', conditionally_calculate_md5),
|
||
|
('before-call.s3.UploadPart', conditionally_calculate_md5),
|
||
|
('before-call.s3.PutBucketAcl', conditionally_calculate_md5),
|
||
|
('before-call.s3.PutBucketLogging', conditionally_calculate_md5),
|
||
|
('before-call.s3.PutBucketNotification', conditionally_calculate_md5),
|
||
|
('before-call.s3.PutBucketPolicy', conditionally_calculate_md5),
|
||
|
('before-call.s3.PutBucketRequestPayment', conditionally_calculate_md5),
|
||
|
('before-call.s3.PutBucketVersioning', conditionally_calculate_md5),
|
||
|
('before-call.s3.PutBucketWebsite', conditionally_calculate_md5),
|
||
|
('before-call.s3.PutObjectAcl', conditionally_calculate_md5),
|
||
|
|
||
|
('before-parameter-build.s3.CopyObject',
|
||
|
handle_copy_source_param),
|
||
|
('before-parameter-build.s3.UploadPartCopy',
|
||
|
handle_copy_source_param),
|
||
|
('before-parameter-build.s3.CopyObject', validate_ascii_metadata),
|
||
|
('before-parameter-build.s3.PutObject', validate_ascii_metadata),
|
||
|
('before-parameter-build.s3.CreateMultipartUpload',
|
||
|
validate_ascii_metadata),
|
||
|
('docs.*.s3.CopyObject.complete-section', document_copy_source_form),
|
||
|
('docs.*.s3.UploadPartCopy.complete-section', document_copy_source_form),
|
||
|
|
||
|
('before-call.s3', add_expect_header),
|
||
|
('before-call.glacier', add_glacier_version),
|
||
|
('before-call.apigateway', add_accept_header),
|
||
|
('before-call.glacier.UploadArchive', add_glacier_checksums),
|
||
|
('before-call.glacier.UploadMultipartPart', add_glacier_checksums),
|
||
|
('before-call.ec2.CopySnapshot', inject_presigned_url_ec2),
|
||
|
('request-created.machinelearning.Predict', switch_host_machinelearning),
|
||
|
('needs-retry.s3.UploadPartCopy', check_for_200_error, REGISTER_FIRST),
|
||
|
('needs-retry.s3.CopyObject', check_for_200_error, REGISTER_FIRST),
|
||
|
('needs-retry.s3.CompleteMultipartUpload', check_for_200_error,
|
||
|
REGISTER_FIRST),
|
||
|
('service-data-loaded', register_retries_for_service),
|
||
|
('choose-signer.cognito-identity.GetId', disable_signing),
|
||
|
('choose-signer.cognito-identity.GetOpenIdToken', disable_signing),
|
||
|
('choose-signer.cognito-identity.UnlinkIdentity', disable_signing),
|
||
|
('choose-signer.cognito-identity.GetCredentialsForIdentity',
|
||
|
disable_signing),
|
||
|
('choose-signer.sts.AssumeRoleWithSAML', disable_signing),
|
||
|
('choose-signer.sts.AssumeRoleWithWebIdentity', disable_signing),
|
||
|
('choose-signer', set_operation_specific_signer),
|
||
|
('before-parameter-build.s3.HeadObject', sse_md5),
|
||
|
('before-parameter-build.s3.GetObject', sse_md5),
|
||
|
('before-parameter-build.s3.PutObject', sse_md5),
|
||
|
('before-parameter-build.s3.CopyObject', sse_md5),
|
||
|
('before-parameter-build.s3.CopyObject', copy_source_sse_md5),
|
||
|
('before-parameter-build.s3.CreateMultipartUpload', sse_md5),
|
||
|
('before-parameter-build.s3.UploadPart', sse_md5),
|
||
|
('before-parameter-build.s3.UploadPartCopy', sse_md5),
|
||
|
('before-parameter-build.s3.UploadPartCopy', copy_source_sse_md5),
|
||
|
('before-parameter-build.ec2.RunInstances', base64_encode_user_data),
|
||
|
('before-parameter-build.autoscaling.CreateLaunchConfiguration',
|
||
|
base64_encode_user_data),
|
||
|
('before-parameter-build.route53', fix_route53_ids),
|
||
|
('before-parameter-build.glacier', inject_account_id),
|
||
|
('after-call.s3.ListObjects', decode_list_object),
|
||
|
('after-call.s3.ListObjectsV2', decode_list_object_v2),
|
||
|
|
||
|
# Cloudsearchdomain search operation will be sent by HTTP POST
|
||
|
('request-created.cloudsearchdomain.Search',
|
||
|
change_get_to_post),
|
||
|
# Glacier documentation customizations
|
||
|
('docs.*.glacier.*.complete-section',
|
||
|
AutoPopulatedParam('accountId', 'Note: this parameter is set to "-" by'
|
||
|
'default if no value is not specified.')
|
||
|
.document_auto_populated_param),
|
||
|
('docs.*.glacier.UploadArchive.complete-section',
|
||
|
AutoPopulatedParam('checksum').document_auto_populated_param),
|
||
|
('docs.*.glacier.UploadMultipartPart.complete-section',
|
||
|
AutoPopulatedParam('checksum').document_auto_populated_param),
|
||
|
('docs.request-params.glacier.CompleteMultipartUpload.complete-section',
|
||
|
document_glacier_tree_hash_checksum()),
|
||
|
# Cloudformation documentation customizations
|
||
|
('docs.*.cloudformation.GetTemplate.complete-section',
|
||
|
document_cloudformation_get_template_return_type),
|
||
|
|
||
|
# UserData base64 encoding documentation customizations
|
||
|
('docs.*.ec2.RunInstances.complete-section',
|
||
|
document_base64_encoding('UserData')),
|
||
|
('docs.*.autoscaling.CreateLaunchConfiguration.complete-section',
|
||
|
document_base64_encoding('UserData')),
|
||
|
|
||
|
# EC2 CopySnapshot documentation customizations
|
||
|
('docs.*.ec2.CopySnapshot.complete-section',
|
||
|
AutoPopulatedParam('PresignedUrl').document_auto_populated_param),
|
||
|
('docs.*.ec2.CopySnapshot.complete-section',
|
||
|
AutoPopulatedParam('DestinationRegion').document_auto_populated_param),
|
||
|
# S3 SSE documentation modifications
|
||
|
('docs.*.s3.*.complete-section',
|
||
|
AutoPopulatedParam('SSECustomerKeyMD5').document_auto_populated_param),
|
||
|
# S3 SSE Copy Source documentation modifications
|
||
|
('docs.*.s3.*.complete-section',
|
||
|
AutoPopulatedParam(
|
||
|
'CopySourceSSECustomerKeyMD5').document_auto_populated_param),
|
||
|
# Add base64 information to Lambda
|
||
|
('docs.*.lambda.UpdateFunctionCode.complete-section',
|
||
|
document_base64_encoding('ZipFile')),
|
||
|
# The following S3 operations cannot actually accept a ContentMD5
|
||
|
('docs.*.s3.*.complete-section',
|
||
|
HideParamFromOperations(
|
||
|
's3', 'ContentMD5',
|
||
|
['DeleteObjects', 'PutBucketAcl', 'PutBucketCors',
|
||
|
'PutBucketLifecycle', 'PutBucketLogging', 'PutBucketNotification',
|
||
|
'PutBucketPolicy', 'PutBucketReplication', 'PutBucketRequestPayment',
|
||
|
'PutBucketTagging', 'PutBucketVersioning', 'PutBucketWebsite',
|
||
|
'PutObjectAcl']).hide_param),
|
||
|
|
||
|
#############
|
||
|
# RDS
|
||
|
#############
|
||
|
('creating-client-class.rds', add_generate_db_auth_token),
|
||
|
|
||
|
('before-call.rds.CopyDBClusterSnapshot',
|
||
|
inject_presigned_url_rds),
|
||
|
('before-call.rds.CreateDBCluster',
|
||
|
inject_presigned_url_rds),
|
||
|
('before-call.rds.CopyDBSnapshot',
|
||
|
inject_presigned_url_rds),
|
||
|
('before-call.rds.CreateDBInstanceReadReplica',
|
||
|
inject_presigned_url_rds),
|
||
|
|
||
|
# RDS PresignedUrl documentation customizations
|
||
|
('docs.*.rds.CopyDBClusterSnapshot.complete-section',
|
||
|
AutoPopulatedParam('PreSignedUrl').document_auto_populated_param),
|
||
|
('docs.*.rds.CreateDBCluster.complete-section',
|
||
|
AutoPopulatedParam('PreSignedUrl').document_auto_populated_param),
|
||
|
('docs.*.rds.CopyDBSnapshot.complete-section',
|
||
|
AutoPopulatedParam('PreSignedUrl').document_auto_populated_param),
|
||
|
('docs.*.rds.CreateDBInstanceReadReplica.complete-section',
|
||
|
AutoPopulatedParam('PreSignedUrl').document_auto_populated_param),
|
||
|
|
||
|
#############
|
||
|
# Neptune
|
||
|
#############
|
||
|
('before-call.neptune.CopyDBClusterSnapshot',
|
||
|
inject_presigned_url_rds),
|
||
|
('before-call.neptune.CreateDBCluster',
|
||
|
inject_presigned_url_rds),
|
||
|
|
||
|
# RDS PresignedUrl documentation customizations
|
||
|
('docs.*.neptune.CopyDBClusterSnapshot.complete-section',
|
||
|
AutoPopulatedParam('PreSignedUrl').document_auto_populated_param),
|
||
|
('docs.*.neptune.CreateDBCluster.complete-section',
|
||
|
AutoPopulatedParam('PreSignedUrl').document_auto_populated_param),
|
||
|
]
|
||
|
_add_parameter_aliases(BUILTIN_HANDLERS)
|