draft-bryan-metalinkhttp-22 and redirects
Matt Domsch <Matt_Domsch@dell.com> Thu, 31 March 2011 01:42 UTC
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Date: Wed, 30 Mar 2011 20:38:57 -0500
From: Matt Domsch <Matt_Domsch@dell.com>
To: ietf-http-wg@w3.org
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Subject: draft-bryan-metalinkhttp-22 and redirects
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Regarding section 7: 7. Client / Server Multi-source Download Interaction Metalink clients begin a download with a standard HTTP [RFC2616] GET request to the Metalink server. Metalink clients MAY use a Range limit if desired. GET /distribution/example.ext HTTP/1.1 Host: www.example.com The Metalink server responds with the data and these header fields: HTTP/1.1 200 OK Accept-Ranges: bytes Content-Length: 14867603 Content-Type: application/x-cd-image Etag: "thvDyvhfIqlvFe+A9MYgxAfm1q5=" Link: <http://www2.example.com/example.ext>; rel=duplicate; pref ... HTTP Servers are permitted to respond to an HTTP GET request with a HTTP REDIRECT (30x) response, including a Location header, the target of the redirect. I presume this continues to be permitted, and that the Link and other headers specified here may also be returned by the server along with the redirect response. In this case, I would expect Link rel=duplicate headers should be considered as alternate Location headers, and that the Metalink client may issue the subsequent request to any of the rel=duplicate URLs using the priority field as appropriate, and should that subsequent request fail, the client is permitted to re-issue the subsequent request to another listed mirror from the Link list. Please confirm, and clarify in the document if appropriate. Thanks, Matt MirrorManager author (http://mirrormanager.org) -- Matt Domsch Technology Strategist, Dell Office of the CTO
- draft-bryan-metalinkhttp-22 and redirects Matt Domsch