[Koha-devel] Kanopy and SIP2 hack

[Mark Alexander]

Excerpts from Katrin Fischer's message of 2018-10-14 12:02:44 +0200:
> reading your use case made me think of some open bugs we have, the first 
> being maybe a similar use case to yours:
> 
> *Bug 16694* 
> <https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=16694> - 
> Limit SIP2 auth by patron attribute

Thank you for that!  It's very similar, except that our use case is more
complicated than I said.

It turns out our library has to deal with two different services in
the SIP2 code.  One service is Kanopy, as I mentioned; the other is a
consortium connected to Overdrive that provides ebooks and audio
books.  Each service has to be handled slightly differently, perhaps
using a separate patron attribute for each.  We need to find out which
service is performing the SIP2 request by examining the client IP
address.

In the bug mentioned above, Marcel suggested putting the validation
code in Patron.pm.  But our very site-specific complications led me to
think of putting the validation code into a plugin.