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[Blob][Fileshare] Ensured that download fails if blob/file modified mid download #19276

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merged 4 commits into from
Jun 29, 2021
Merged

[Blob][Fileshare] Ensured that download fails if blob/file modified mid download #19276

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b039a3a
Ensured that download fails if blob/file modified mid download
tasherif-msft Jun 16, 2021
a68757f
fixed linter
tasherif-msft Jun 16, 2021
b1959fe
ResourceModifiedError
tasherif-msft Jun 25, 2021
05aa9a5
Merge branch 'main' into mod-download
tasherif-msft Jun 29, 2021
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4 changes: 1 addition & 3 deletions sdk/storage/azure-storage-blob/azure/storage/blob/_download.py
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Original file line number Diff line number Diff line change
Expand Up @@ -460,10 +460,8 @@ def _initial_request(self):
# If the file is small, the download is complete at this point.
# If file size is large, download the rest of the file in chunks.
if response.properties.size != self.size:
# Lock on the etag. This can be overriden by the user by specifying '*'
if self._request_options.get("modified_access_conditions"):
if not self._request_options["modified_access_conditions"].if_match:
self._request_options["modified_access_conditions"].if_match = response.properties.etag
self._request_options["modified_access_conditions"].if_match = response.properties.etag
else:
self._download_complete = True
return response
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4 changes: 1 addition & 3 deletions sdk/storage/azure-storage-blob/azure/storage/blob/aio/_download_async.py
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Original file line number Diff line number Diff line change
Expand Up @@ -352,10 +352,8 @@ async def _initial_request(self):
# If the file is small, the download is complete at this point.
# If file size is large, download the rest of the file in chunks.
if response.properties.size != self.size:
# Lock on the etag. This can be overriden by the user by specifying '*'
if self._request_options.get('modified_access_conditions'):
if not self._request_options['modified_access_conditions'].if_match:
self._request_options['modified_access_conditions'].if_match = response.properties.etag
self._request_options['modified_access_conditions'].if_match = response.properties.etag
else:
self._download_complete = True
return response
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