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https://issues.apache.org/jira/browse/JCLOUDS-1580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Gaul updated JCLOUDS-1580:
---------------------------------
Labels: openstack-swift (was: )
> BlobStore.blobMetadata().getUserMetadata() returns empty Map when cloud
> provider returns lowercase metadata headers
> -------------------------------------------------------------------------------------------------------------------
>
> Key: JCLOUDS-1580
> URL: https://issues.apache.org/jira/browse/JCLOUDS-1580
> Project: jclouds
> Issue Type: Bug
> Components: jclouds-blobstore
> Affects Versions: 2.3.0
> Reporter: Erik Ebert
> Priority: Major
> Labels: openstack-swift
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> I believe this is happening because jclouds/swift is specifically looking for
> user metadata with the prefix "X-Object-Meta-", case SENSITIVE:
> X-Object-Meta-foo
>
> But since header names are case-INSENSITIVE. per RFC 2616, this fails if the
> cloud provider returns header names in lower case:
> x-object-meta-foo
>
> I discovered this while using "openstack-swift" to access SAP's Converged
> Cloud, but it would affect any cloud provider that returns lower-case header
> names.
>
> In my case, this is an example of what is returned by Converged Cloud:
> curl <object url> --head -H "X-Auth-Token:<token>"
> HTTP/1.1 200 OK
> content-type: application/octet-stream
> *x-object-meta-original-created-time*: 1623984822180
> *x-object-meta-content-md5*: rREHajOaHzUiU8DQoap9NA==
> etag: xxxxx
> last-modified: Fri, 18 Jun 2021 02:53:53 GMT
> x-timestamp: 1623984832.86825
> accept-ranges: bytes
> content-length: 12
> x-trans-id: xxxx
> x-openstack-request-id: xxxxx
> date: Fri, 18 Jun 2021 03:16:46 GMT
>
> Sample jclouds code:
>
> {code:java}
> BlobStoreContext blobStoreContext =
> ContextBuilder.newBuilder("openstack-swift")
> .endpoint(ENDPOINT)
> .credentials(INDENTITY, CREDENTIAL)
> .overrides(overrides)
> .buildApi(BlobStoreContext.class);
> BlobStore blobStore = blobStoreContext.getBlobStore();
> BlobMetadata blobMetadata = blobStore.blobMetadata(CONTAINER, PATH);
> Map<String, String> userMetadata = blobMetadata.getUserMetadata()
> System.out.println(userMetadata.toString())
>
> {code}
>
> blobMetadata.getUserMetadata() SHOULD return something like:
> *original-created-time*: 1623984822180
> *content-md5*: rREHajOaHzUiU8DQoap9NA==
> (or similar), but instead it returns an empty Map object.
>
> Stepping through the code, I believe the source of the problem is line 41 of
> EntriesWithoutMetaPrefix.java:
> [https://github.com/apache/jclouds/blob/0b89ee0825d45de1193090cdd5efc5f1135fa200/apis/openstack-swift/src/main/java/org/jclouds/openstack/swift/v1/functions/EntriesWithoutMetaPrefix.java]
>
> Partial stack trace from the code example above:
> {code:java}
> at
> org.jclouds.openstack.swift.v1.functions.EntriesWithoutMetaPrefix.apply(EntriesWithoutMetaPrefix.java:41)
> at
> org.jclouds.openstack.swift.v1.functions.ParseObjectFromResponse.apply(ParseObjectFromResponse.java:81)
> at
> org.jclouds.openstack.swift.v1.functions.ParseObjectFromResponse.apply(ParseObjectFromResponse.java:41)
> at
> org.jclouds.rest.internal.InvokeHttpMethod.invoke(InvokeHttpMethod.java:91)
> at
> org.jclouds.rest.internal.InvokeHttpMethod.apply(InvokeHttpMethod.java:74)
> at
> org.jclouds.rest.internal.InvokeHttpMethod.apply(InvokeHttpMethod.java:45)
> at
> org.jclouds.reflect.FunctionalReflection$FunctionalInvocationHandler.handleInvocation(FunctionalReflection.java:117)
> at
> com.google.common.reflect.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:86)
> at com.sun.proxy.$Proxy199.getWithoutBody(Unknown Source:-1)
> {code}
>
> I believe the fix would be to change line 41 of EntriesWithoutMetaPrefix.java
> from
> int index = header.getKey().indexOf("\-Meta\-");
> to something like:
> int index = header.getKey()*.toLowerCase()*.indexOf("*\-meta\-*");
>
> {code:java}
> 41c41
> < int index = header.getKey().indexOf("-Meta-");
> ---
> > int index = header.getKey().toLowerCase().indexOf("-meta-");
> {code}
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