From d253841d6f0838f4aa1313b6f4e4bbe6e5a31a1e Mon Sep 17 00:00:00 2001
From: aemous <amoustafa0518@gmail.com>
Date: Tue, 24 Sep 2024 09:19:54 -0400
Subject: [PATCH] Progress on porting the commit.

---
 awscli/botocore/args.py   |  3 +++
 awscli/botocore/auth.py   | 27 ++++++++++++++++++++++++++-
 awscli/botocore/client.py | 12 ++++++++----
 3 files changed, 37 insertions(+), 5 deletions(-)

diff --git a/awscli/botocore/args.py b/awscli/botocore/args.py
index dba2dbce18af..d2ec4b63adf9 100644
--- a/awscli/botocore/args.py
+++ b/awscli/botocore/args.py
@@ -214,6 +214,9 @@ def compute_client_args(self, service_model, client_config,
                 ),
                 user_agent_extra=client_config.user_agent_extra,
                 user_agent_appid=client_config.user_agent_appid,
+                sigv4a_signing_region_set=(
+                    client_config.sigv4a_signing_region_set
+                ),
             )
         self._compute_retry_config(config_kwargs)
         self._compute_request_compression_config(config_kwargs)
diff --git a/awscli/botocore/auth.py b/awscli/botocore/auth.py
index 3bc271dc2fb0..923b1ca2759e 100644
--- a/awscli/botocore/auth.py
+++ b/awscli/botocore/auth.py
@@ -32,7 +32,12 @@
     urlsplit,
     urlunsplit,
 )
-from botocore.exceptions import NoAuthTokenError, NoCredentialsError
+from botocore.exceptions import (
+    NoAuthTokenError,
+    NoCredentialsError,
+    UnknownSignatureVersionError,
+    UnsupportedSignatureVersionError,
+)
 from botocore.utils import (
     is_valid_ipv6_endpoint_url,
     normalize_url_path,
@@ -851,6 +856,19 @@ def add_auth(self, request):
 # a separate utility module to avoid any potential circular import.
 import botocore.crt.auth
 
+def resolve_auth_type(auth_trait):
+    for auth_type in auth_trait:
+        if auth_type == 'smithy.api#noAuth':
+            return AUTH_TYPE_TO_SIGNATURE_VERSION[auth_type]
+        elif auth_type in AUTH_TYPE_TO_SIGNATURE_VERSION:
+            signature_version = AUTH_TYPE_TO_SIGNATURE_VERSION[auth_type]
+            if signature_version in AUTH_TYPE_MAPS:
+                return signature_version
+        else:
+            raise UnknownSignatureVersionError(signature_version=auth_type)
+    raise UnsupportedSignatureVersionError(signature_version=auth_trait)
+
+
 # Defined at the bottom instead of the top of the module because the Auth
 # classes weren't defined yet.
 AUTH_TYPE_MAPS = {
@@ -870,3 +888,10 @@ def add_auth(self, request):
     'v4-s3express-presign-post': S3ExpressPostAuth,
     'bearer': BearerAuth,
 }
+
+AUTH_TYPE_TO_SIGNATURE_VERSION = {
+    'aws.auth#sigv4': 'v4',
+    'aws.auth#sigv4a': 'v4a',
+    'smithy.api#httpBearerAuth': 'bearer',
+    'smithy.api#noAuth': 'none',
+}
\ No newline at end of file
diff --git a/awscli/botocore/client.py b/awscli/botocore/client.py
index 0dcc3b832a50..55c5faed23eb 100644
--- a/awscli/botocore/client.py
+++ b/awscli/botocore/client.py
@@ -15,7 +15,7 @@
 
 from botocore import UNSIGNED, waiter, xform_name
 from botocore.args import ClientArgsCreator
-from botocore.auth import AUTH_TYPE_MAPS
+from botocore.auth import AUTH_TYPE_MAPS, resolve_auth_type
 from botocore.awsrequest import prepare_request_dict
 from botocore.compress import maybe_compress_request
 from botocore.config import Config
@@ -118,13 +118,17 @@ def create_client(self, service_name, region_name, is_secure=True,
         cls = self._create_client_class(service_name, service_model)
         region_name, client_config = self._normalize_fips_region(
             region_name, client_config)
+        if auth := service_model.metadata.get('auth'):
+            service_signature_version = resolve_auth_type(auth)
+        else:
+            service_signature_version = service_model.metadata.get(
+                'signatureVersion'
+            )
         endpoint_bridge = ClientEndpointBridge(
             self._endpoint_resolver, scoped_config, client_config,
             service_signing_name=service_model.metadata.get('signingName'),
             config_store=self._config_store,
-            service_signature_version=service_model.metadata.get(
-                'signatureVersion'
-            ),
+            service_signature_version=service_signature_version,
         )
         client_args = self._get_client_args(
             service_model, region_name, is_secure, endpoint_url,