[Storage] Fix for inconsistent casing in x-ms-meta prefix extraction in response handler (Azure#37911)

Author: weirongw23-msft

sdk/storage/azure-storage-blob/azure/storage/blob/_shared/request_handlers.py

@@ -4,12 +4,11 @@
 # license information.
 # --------------------------------------------------------------------------
 
-from typing import Dict, Optional
-
 import logging
-from os import fstat
 import stat
 from io import (SEEK_END, SEEK_SET, UnsupportedOperation)
+from os import fstat
+from typing import Dict, Optional
 
 import isodate
 

sdk/storage/azure-storage-blob/azure/storage/blob/_shared/response_handlers.py

@@ -60,9 +60,9 @@ def normalize_headers(headers):
 
 def deserialize_metadata(response, obj, headers):  # pylint: disable=unused-argument
     try:
-        raw_metadata = {k: v for k, v in response.http_response.headers.items() if k.startswith("x-ms-meta-")}
+        raw_metadata = {k: v for k, v in response.http_response.headers.items() if k.lower().startswith('x-ms-meta-')}
     except AttributeError:
-        raw_metadata = {k: v for k, v in response.headers.items() if k.startswith("x-ms-meta-")}
+        raw_metadata = {k: v for k, v in response.headers.items() if k.lower().startswith('x-ms-meta-')}
     return {k[10:]: v for k, v in raw_metadata.items()}
 
 

sdk/storage/azure-storage-file-datalake/azure/storage/filedatalake/_shared/request_handlers.py

@@ -4,12 +4,11 @@
 # license information.
 # --------------------------------------------------------------------------
 
-from typing import Dict, Optional
-
 import logging
-from os import fstat
 import stat
 from io import (SEEK_END, SEEK_SET, UnsupportedOperation)
+from os import fstat
+from typing import Dict, Optional
 
 import isodate
 

sdk/storage/azure-storage-file-datalake/azure/storage/filedatalake/_shared/response_handlers.py

@@ -60,9 +60,9 @@ def normalize_headers(headers):
 
 def deserialize_metadata(response, obj, headers):  # pylint: disable=unused-argument
     try:
-        raw_metadata = {k: v for k, v in response.http_response.headers.items() if k.startswith("x-ms-meta-")}
+        raw_metadata = {k: v for k, v in response.http_response.headers.items() if k.lower().startswith('x-ms-meta-')}
     except AttributeError:
-        raw_metadata = {k: v for k, v in response.headers.items() if k.startswith("x-ms-meta-")}
+        raw_metadata = {k: v for k, v in response.headers.items() if k.lower().startswith('x-ms-meta-')}
     return {k[10:]: v for k, v in raw_metadata.items()}
 
 

sdk/storage/azure-storage-file-share/azure/storage/fileshare/_shared/request_handlers.py

@@ -4,12 +4,11 @@
 # license information.
 # --------------------------------------------------------------------------
 
-from typing import Dict, Optional
-
 import logging
-from os import fstat
 import stat
 from io import (SEEK_END, SEEK_SET, UnsupportedOperation)
+from os import fstat
+from typing import Dict, Optional
 
 import isodate
 

sdk/storage/azure-storage-file-share/azure/storage/fileshare/_shared/response_handlers.py

@@ -60,9 +60,9 @@ def normalize_headers(headers):
 
 def deserialize_metadata(response, obj, headers):  # pylint: disable=unused-argument
     try:
-        raw_metadata = {k: v for k, v in response.http_response.headers.items() if k.startswith("x-ms-meta-")}
+        raw_metadata = {k: v for k, v in response.http_response.headers.items() if k.lower().startswith('x-ms-meta-')}
     except AttributeError:
-        raw_metadata = {k: v for k, v in response.headers.items() if k.startswith("x-ms-meta-")}
+        raw_metadata = {k: v for k, v in response.headers.items() if k.lower().startswith('x-ms-meta-')}
     return {k[10:]: v for k, v in raw_metadata.items()}
 
 

sdk/storage/azure-storage-queue/azure/storage/queue/_shared/request_handlers.py

@@ -4,12 +4,11 @@
 # license information.
 # --------------------------------------------------------------------------
 
-from typing import Dict, Optional
-
 import logging
-from os import fstat
 import stat
 from io import (SEEK_END, SEEK_SET, UnsupportedOperation)
+from os import fstat
+from typing import Dict, Optional
 
 import isodate
 

sdk/storage/azure-storage-queue/azure/storage/queue/_shared/response_handlers.py

@@ -60,9 +60,9 @@ def normalize_headers(headers):
 
 def deserialize_metadata(response, obj, headers):  # pylint: disable=unused-argument
     try:
-        raw_metadata = {k: v for k, v in response.http_response.headers.items() if k.startswith("x-ms-meta-")}
+        raw_metadata = {k: v for k, v in response.http_response.headers.items() if k.lower().startswith('x-ms-meta-')}
     except AttributeError:
-        raw_metadata = {k: v for k, v in response.headers.items() if k.startswith("x-ms-meta-")}
+        raw_metadata = {k: v for k, v in response.headers.items() if k.lower().startswith('x-ms-meta-')}
     return {k[10:]: v for k, v in raw_metadata.items()}