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VOSpace public share protocol

This wiki page serves as the definition for a VOSpace transfer protocol for sharing node content.

The target use case is to enable users to get a simple URL that provides access to the node content using a simple HTTP GET request.

If a client includes the URI for this protocol in a PullFromVOSpace transfer request, then the endpoint URL in the VOSpace server response will contain a simple URL that provides HTTP GET access to the node content.

Basic requirements

  • The endpoint URL MUST work with a simple HTTP GET request.
  • The endpoint URL SHOULD be suitable for listing in a published paper.
  • The endpoint URL SHOULD be suitable for sending to someone in an email.
  • The endpoint URL MUST be able to be used multiple times by multiple clients.

Technical details

  • The URL of this wiki page serves as the URI for this transfer protocol.

  • This protocol SHOULD only valid for a PullFromVOSpace transfer request.
  • The UWS transfer job will complete immediately.
  • The endpoint URL MUST continue to be valid after the transfer job has completed.

  • The endpoint URL path MUST end with a valid file name based on the node name.
  • The header fields of a HTTP response to a HTTP GET requests MUST contain a valid file name based on the node name.
  • The header fields of a HTTP response to a HTTP GET requests MUST an appropriate mime-type based on the node content.

Technical issues

Things that need to be discussed..

  • What if the transfer request contains more than one protocol - do the others remain valid even if this one has completed ?
  • What happens if the node content changes ?

  • Do we want to define a ZippedArchive view that can be used in combination with this protocol to download the contents of a ContainerNode as a zipfile ?

Things that probably go in a separate ProtectedShare protocol ..

  • Do we want to add a property to control the URL lifetime ?
  • Do we want to add a property to control the number of downloads allowed ?
  • Do we want to add a property to control access ?

Topic revision: r1 - 2016-06-08 - DaveMorris
 
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