* s3tables: honor a table policy Deny for maintenance operations
authorizeMaintenanceTable evaluated only the bucket policy, so a Deny in the table policy never vetoed PutTableMaintenanceConfiguration, GetTableMaintenanceConfiguration or GetTableMaintenanceJobStatus even though they act on the table ARN. The stored table policy is now checked for a matching Deny first via deniedByPolicy, a veto helper that keeps the admin exemption, and resource and bucket tags are loaded into the policy context so tag-conditioned Denies evaluate. readBucketPolicy is renamed to readPolicy and reused for the table path.
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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
* s3tables: honor the stored policy's Deny on policy management operations
PutTablePolicy, GetTablePolicy and DeleteTablePolicy only evaluated the bucket policy, so a Deny in the table's own policy was ignored and a bucket-level Allow could strip or replace the policy guarding a table. The existing table policy is now loaded and a matching Deny vetoes the call. PutTableBucketPolicy likewise consults the existing bucket policy for a Deny before replacing it. Resource and bucket tags populate the policy context so tag-conditioned Denies evaluate, and policy writes assert the policy authorized against is still in force, returning a conflict when it changed mid-request.
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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
* s3tables: apply a table policy Deny to tag operations
TagResource, ListTagsForResource and UntagResource evaluated only the bucket policy; a Deny in the table's own policy is now honored when the target ARN is a table. ListTagsForResource and UntagResource also returned early when the resource carried no tags attribute, skipping the permission check entirely; the check now always runs. Policy evaluation uses the canonical resource ARN rebuilt from stored metadata, so a request ARN with a forged account or region cannot dodge the Deny.
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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
* s3tables: regression tests for resource policy denies
Cover the case where a bucket policy grants an identity s3tables:* while the table policy denies it: the policy, tag and maintenance operations must stay denied so the protection cannot be stripped. Also cover a bucket policy that denies PutTableBucketPolicy under the open fallback, and a tag-conditioned Deny, which vetoes only while the stored tag matches.
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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
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Co-authored-by: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
see https://blog.aqwari.net/xml-schema-go/
1. go get aqwari.net/xml/cmd/xsdgen
2. Add EncodingType element for ListBucketResult in AmazonS3.xsd
3. xsdgen -o s3api_xsd_generated.go -pkg s3api AmazonS3.xsd
4. Remove empty Grantee struct in s3api_xsd_generated.go
5. Remove xmlns: sed s'/http:\/\/s3.amazonaws.com\/doc\/2006-03-01\/\ //' s3api_xsd_generated.go
