Registry of Registries returns many entries that are technically not XML valid

[pahjbo]

As pointed out in http://mail.ivoa.net/pipermail/registry/2025-February/005622.html many entries in the RofR are invalid because of missing namespace declarations.

% curl "http://rofr.ivoa.net/oai?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo://src.pas/__system__/services/registry"

<oai:OAI-PMH xmlns:oai="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd">

<oai:responseDate>2025-02-11T08:12:20Z</oai:responseDate>
<oai:request verb="GetRecord" metadataPrefix="ivo_vor" identifier="ivo://src.pas/__system__/services/registry">[http://rofr.ivoa.net/oai</oai:request](http://rofr.ivoa.net/oai%3C/oai:request)>

<oai:GetRecord>
<oai:record>
<oai:header>
<oai:identifier>[ivo://src.pas/__system__/services/registry</oai:identifier](ivo://src.pas/__system__/services/registry%3C/oai:identifier)>
<oai:datestamp>2024-05-21T11:24:29Z</oai:datestamp>
<oai:setSpec>Registry:Publishers</oai:setSpec>
<oai:setSpec>ivoa_publishers</oai:setSpec>
<oai:setSpec>ivo_publishers</oai:setSpec>
</oai:header>
<oai:metadata>
<ri:Resource created="2018-08-14T11:46:33Z" status="active" updated="2024-05-21T11:24:29Z" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="vg:Registry" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0"><title>Pithia VO datacenter Registry</title><shortName>HPSL RG</shortName><identifier>[ivo://src.pas/__system__/services/registry</identifier](ivo://src.pas/__system__/services/registry%3C/identifier)><curation><publisher>The staff at the Pithia VO datacenter</publisher><creator><name>Lukasz Tomasik</name><logo>[http://pithia.cbk.waw.pl/static/img/logo_medium.png</logo](http://pithia.cbk.waw.pl/static/img/logo_medium.png%3C/logo)></creator><date role="updated">2024-07-23T15:08:56Z</date><contact><name>Lukasz Tomasik</name><address>Bartycka 18A/181,00-716 Warsaw, Poland</address><email>[tomasik at cbk.waw.pl](http://mail.ivoa.net/mailman/listinfo/registry)</email><telephone>+48 22 4966 200</telephone></contact></curation><content><subject>virtual-observatories</subject><description> The publishing registry for the Pithia VO datacenter.</description><referenceURL>[http://pithia.cbk.waw.pl/__system__/services/registry/info</referenceURL](http://pithia.cbk.waw.pl/__system__/services/registry/info%3C/referenceURL)></content><rights>public</rights><capability standardID="ivo://ivoa.net/std/Registry" xsi:type="vg:Harvest"><interface role="std" xsi:type="vg:OAIHTTP"><accessURL use="base">[http://pithia.cbk.waw.pl/oai.xml</accessURL](http://pithia.cbk.waw.pl/oai.xml%3C/accessURL)></interface><maxRecords>500</maxRecords></capability><capability standardID="ivo://ivoa.net/std/VOSI#availability"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="full">[http://pithia.cbk.waw.pl/__system__/services/registry/availability</accessURL](http://pithia.cbk.waw.pl/__system__/services/registry/availability%3C/accessURL)></interface></capability><capability standardID="ivo://ivoa.net/std/VOSI#capabilities"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="full">[http://pithia.cbk.waw.pl/__system__/services/registry/capabilities</accessURL](http://pithia.cbk.waw.pl/__system__/services/registry/capabilities%3C/accessURL)></interface></capability><capability standardID="ivo://ivoa.net/std/VOSI#tables"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="full">[http://pithia.cbk.waw.pl/__system__/services/registry/tableMetadata</accessURL](http://pithia.cbk.waw.pl/__system__/services/registry/tableMetadata%3C/accessURL)></interface></capability><full>false</full><managedAuthority>src.pas</managedAuthority><tableset><schema><name>default</name></schema></tableset></ri:Resource></oai:metadata>
</oai:record>
</oai:GetRecord>

</oai:OAI-PMH>

is invalid as there is no declaration of the namespace of the vg: prefix. Although it is obvious what namespace this is referring to, if the output is read via an XML processor it will immediately stop at this error.

[msdemlei]

On Fri, Mar 07, 2025 at 03:00:08AM -0800, Paul Harrison wrote: As pointed out in http://mail.ivoa.net/pipermail/registry/2025-February/005622.html many entries in the RofR are invalid because of missing namespace declarations.

This is (almost) always a result of a problem in the RofR's reharvester. @at88mph, can we charm you into fixing this? Also note, however, that for almost anything you would want to do with the list of publishing registries (except running your own global harvester, probably), it is probably better to do RegTAP queries with; anything registry-like you'll find with select * from rr.resource where res_type='vg:registry' Somewhat exotically, RegistryInterfaces does not use standardID to identify its capabilities. Still, to find the publishing registry's endpoints, something like select ivoid, access_url from rr.resource natural join rr.capability natural join rr.interface where res_type='vg:registry' and cap_type='vg:harvest' should still work well enough.