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https://issues.apache.org/jira/browse/JCLOUDS-1428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16806226#comment-16806226
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Ignasi Barrera commented on JCLOUDS-1428:
-----------------------------------------
It is called
[here|https://github.com/apache/jclouds/blob/master/providers/azureblob/src/main/java/org/jclouds/azureblob/blobstore/functions/BlobPropertiesToBlobMetadata.java#L58].
That {{BlobPropertiesToBlobMetadata}} function is called everytime a blob is
retrieved using the {{AzureBlobStore}}. If you look at the usages of [these
two|https://github.com/apache/jclouds/blob/master/providers/azureblob/src/main/java/org/jclouds/azureblob/blobstore/AzureBlobStore.java#L93-L94]
variables and [this
one|https://github.com/apache/jclouds/blob/master/providers/azureblob/src/main/java/org/jclouds/azureblob/blobstore/AzureBlobStore.java#L96],
you'll see when that gets called, which is basically when getting a blob, or
getting a list of blobs, so, in practice, it will always fail for SAS tokens,
I wonder if it would make sense to disable getting that info when we already
know it can't be retrieved with the provided credntials? [~gaul] WDYT?
> Support for SAS token based Authentication for Azure Blob Storage
> -----------------------------------------------------------------
>
> Key: JCLOUDS-1428
> URL: https://issues.apache.org/jira/browse/JCLOUDS-1428
> Project: jclouds
> Issue Type: Improvement
> Components: jclouds-blobstore
> Reporter: Himanshu Jain
> Priority: Major
> Labels: azureblob
> Fix For: 2.2.0, 2.1.3
>
> Attachments: azure_stacktrace.txt
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Hi,
> We have one use case where we want to provide limited access to objects in
> our storage accounts. We figured that the best way to do this is by using
> SAS token based authentication mechanism to upload/download objects to Azure
> Blob Storage - [SAS based
> Authentication|https://docs.microsoft.com/en-us/azure/storage/common/storage-dotnet-shared-access-signature-part-1]
> We found that JClouds client library provides support for Azure Blob Storage
> using account keys which might not fit our use case because of security
> reasons.
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