Page Comparison

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• Internal to Gateway, all header values are treated as case-insensitive.

• Dates are in the rfc1123 format, e.g. "Wed, 12 Dec 2016 15:59:02 GMT". For S3 these are translated in to the ISO8601 format.

• The x-object-lock-meta-retain-until-date header applies to retention periods and specifies the end date of the retention period. The x-object-lock-meta-legal-hold header applies to legal hold. Both a retention period and a legal hold can both be set on the same object version.

• The x-object-lock-meta-original-lifepoints header stores the complete set of user defined delete/deletable lifepoint headers found on the object at the time the retention period/legal hold was applied. The original delete/deletable lifepoint headers are removed. Swarm no longer considers these lifepoints.
  Gateway manipulates delete/deletable type lifepoints, all other lifepoints are unaffected and continue functioning normally.
  An object lock in effect takes precedence over any user-defined delete/deletable lifepoints, blocking delete. The user-defined lifepoints take effect again when an object lock expires ( or gets is removed).

• Object locking works for tenanted objects. Object locking cannot be set on untenanted and unnamed objects in a cluster.

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Differences Between S3 and Swarm's Implementation of Object Locking

In S3, a DELETE request results in a delete marker, shadowing the locked object version. Swarm's implementation deviates from this logic – it rejects any DELETE requests for indelible objects with an HTTP 403 Forbidden error.

Gateway checks if the object is locked when it gets a receives an HTTP 403 Forbidden error from Swarm. Gateway simulates the S3 behavior creating a new (unlocked) object version, immediately followed by a DELETE, thus creating a delete marker.

For SCSP, use a configuration flag to pick the desired behavior:

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