[storage-file-share] Fix empty continuation token with list methods#26676
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xirzec merged 1 commit intoAzure:mainfrom Aug 1, 2023
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[storage-file-share] Fix empty continuation token with list methods#26676xirzec merged 1 commit intoAzure:mainfrom
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…26676) ### Packages impacted by this PR `@azure/storage-file-share` ### Describe the problem that is addressed by this PR When the empty string was passed as a continuationToken to the `byPage` method of any `list` operation, the constructed url would have an empty marker parameter `&marker=&`. This was causing issues with SharedKey authentication since we now share the same credential signing logic as `storage-blob` and the implementation of `getURLQueries` in storage-blob ignores query parameters without a value: https://github.com/Azure/azure-sdk-for-js/blob/b4e1a63cd2499016f91852c7208f0c4c569651d4/sdk/storage/storage-blob/src/utils/utils.common.ts#L371 However, the previous copy of this method in `storage-file-share` did not: https://github.com/Azure/azure-sdk-for-js/blob/b4e1a63cd2499016f91852c7208f0c4c569651d4/sdk/storage/storage-file-share/src/utils/utils.common.ts#L306 Notice the missing `&& lastIndexOfEqual < value.length - 1` in the second implementation. ### What are the possible designs available to address the problem? If there are more than one possible design, why was the one in this PR chosen? While it is possible to change the way storage-blob does this signing to match storage-file-share, given that storage-blob is a far more popular package, there is considerable risk to changing behavior there. Since existing storage-file-share customers (such as Storage Explorer) may be already passing the empty string today, there is a strong desire to maintain that contract. Rather than diverge the signing logic around SharedKeyCredential again, I believe the least invasive fix is to have the list methods in storage-file-share ignore the empty string as demonstrated in this PR.
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Update readme.python.md (Azure#26676)
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Packages impacted by this PR
@azure/storage-file-shareDescribe the problem that is addressed by this PR
When the empty string was passed as a continuationToken to the
byPagemethod of anylistoperation, the constructed url would have an empty marker parameter&marker=&.This was causing issues with SharedKey authentication since we now share the same credential signing logic as
storage-bloband the implementation ofgetURLQueriesin storage-blob ignores query parameters without a value:azure-sdk-for-js/sdk/storage/storage-blob/src/utils/utils.common.ts
Line 371 in b4e1a63
However, the previous copy of this method in
storage-file-sharedid not:azure-sdk-for-js/sdk/storage/storage-file-share/src/utils/utils.common.ts
Line 306 in b4e1a63
Notice the missing
&& lastIndexOfEqual < value.length - 1in the second implementation.What are the possible designs available to address the problem? If there are more than one possible design, why was the one in this PR chosen?
While it is possible to change the way storage-blob does this signing to match storage-file-share, given that storage-blob is a far more popular package, there is considerable risk to changing behavior there.
Since existing storage-file-share customers (such as Storage Explorer) may be already passing the empty string today, there is a strong desire to maintain that contract.
Rather than diverge the signing logic around SharedKeyCredential again, I believe the least invasive fix is to have the list methods in storage-file-share ignore the empty string as demonstrated in this PR.