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https://issues.apache.org/jira/browse/OAK-7998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16888168#comment-16888168
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Matt Ryan commented on OAK-7998:
--------------------------------

Version 1.10.4 fixed in 
r[1863326|https://svn.apache.org/viewvc?view=revision&revision=1863326].

> [DirectBinaryAccess] Verify that binary exists in cloud before creating 
> signed download URI
> -------------------------------------------------------------------------------------------
>
>                 Key: OAK-7998
>                 URL: https://issues.apache.org/jira/browse/OAK-7998
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: blob-cloud, blob-cloud-azure
>    Affects Versions: 1.10.0
>            Reporter: Matt Ryan
>            Assignee: Matt Ryan
>            Priority: Major
>             Fix For: 1.16.0, 1.10.4
>
>
> The direct binary access download logic doesn't actually verify that the 
> requested blob is available in the cloud before creating the signed download 
> URI.  It is possible that a user could request a download URI for a blob that 
> is "in the repo" but hasn't actually been uploaded yet.
> We should verify this by uploading a new blob, preventing it being uploaded 
> to the cloud (retain in cache), and then request the download URI.  We should 
> get a null back or get some other error or exception; if we get a URI it 
> would return an HTTP 404 if the blob is not actually uploaded yet (maybe this 
> would also be ok).



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