this command: $ curl -s 'http://ubuntu/cgi-bin/koha/oai.pl?verb=ListMetadataFormats' | xmllint --format - results in : http://pastebin.com/raw.php?i=SU52snk3 I believe this is a problem: <schema>http://www.loc.gov/MARC21/slim http://www.loc.gov/ standards/marcxml/schema/MARC21slim.xsd</schema> <metadataNamespace>http://www.loc.gov/MARC21/slim http://www.loc.gov/ standards/marcxml/schema/MARC21slim</metadataNamespace> shouldn't it be this instead? <schema>http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd</schema> <metadataNamespace>http://www.loc.gov/MARC21/slim</metadataNamespace> and not quite as important, but somewhat relevant I think this: <metadataPrefix>marcxml</metadataPrefix> should be this: <metadataPrefix>marc21</metadataPrefix> according to this: http://www.openarchives.org/OAI/2.0/guidelines-marcxml.htm "It is recommended that the metadataPrefix "marc21" be used with this metadata format."
Why is it a critical bug? Does it block any OAI-PMH harvester? Koha supports other MARC flavours that MARC21 that's the reason why it returns by default a 'neutral' MARCXML schema. If you need more control over your Koha OAI server, use it in extended mode: http://perldoc.koha-community.org/opac/oai.html
"Why is it a critical bug? Does it block any OAI-PMH harvester?" not per se, but the harvester has the wrong info about the format and thus can't do anything with the harvested records. "Koha supports other MARC flavours that MARC21 that's the reason why it returns by default a 'neutral' MARCXML schema." The intended schema and namespace are fine, but it seems there's a typo (note the spaces in the link you provided) metadataNamespace: http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim schema: http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd why are there two urls in each of those values. That is wrong isn't it?
> not per se, but the harvester has the wrong info about the format and > thus can't do anything with the harvested records. Please elaborate on this point. Current Koha OAI server is used by many libraries and harvested by several well known harversters without trouble, apparently. If it doesn't work for you, tell exacly why. Propose a patch or describe the issue so someone can try to fix it for you. > metadataNamespace: http://www.loc.gov/MARC21/slim > http://www.loc.gov/standards/marcxml/schema/MARC21slim > schema: http://www.loc.gov/MARC21/slim > http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd > why are there two urls in each of those values. That is wrong isn't > it? It seems so. This should be enough: http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd Since no harverster seems to complain about or fails to work properly, I would hesitate to fix that. So same as above, please report any harverster failing due to this 'strange' namespace.
Not sure what else to say except that you should re-read my initial comment. I clearly detailed the issue and offered what I think is the solution. Here's a couple more resources: http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd <complexType name="metadataFormatType"> <sequence> <element name="metadataPrefix" type="oai:metadataPrefixType"/> <element name="schema" type="anyURI"/> <element name="metadataNamespace" type="anyURI"/> </sequence> </complexType> http://www.w3.org/TR/xmlschema-2/#anyURI: "anyURI represents a Uniform Resource Identifier Reference (URI)" But koha is actually shoving in 2 uris into both schema and metadataNamespace - why?
I can confirm, that Koha still lists 2 URLs each in the response to ListMetadataFormats: <schema>http://www.loc.gov/MARC21/slim http://www.loc.gov/ standards/marcxml/schema/MARC21slim.xsd</schema><metadataNamespace>http://www.loc.gov/MARC21/slim http://www.loc.gov/ standards/marcxml/schema/MARC21slim</metadataNamespace>
It looks like it was changed in part, there is only 1 URL in schema, but 2 URLs in one namespace element separated by space. .../cgi-bin/koha/oai.pl?verb=ListMetadataFormats
marc21 Namespace http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim Schema http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd marcxml Namespace http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim Schema http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd Note: Schema links exist, Namespace links do not.