Add 'sip' login type

[Galen Charlton]

It could be convenient to add a new login type, to allow for setting a distinct authentication session timeout for SIPServer sessions.

At present, the SIP driver authenticates SIP terminal sessions using the 'opac' type, but the typical timeout for that type is pretty short. In some cases, a SIP2 selfcheck machine could sit for several minutes between uses, and not all SIP2 devices will retry authentication upon receiving no response to a message.

Since adding a login type currently requires touching C code, some thought should be given as to whether 'sip' is a good name for the new type or if it should be made more general (e.g., 'external').

Evergreen master

[Jason Stephenson (jstephenson)]

I'm looking at a related change for the Evergreen built-in selfcheck, and agree that this would also be a useful feature.

[Mike Rylander (mrylander)]

Would it be worth considering a change such that the XML elements define the types and the expiration of each, rather than a hard list of types? (Whoa are they who don't define the current in-use types!)

[Jason Stephenson (jstephenson)]

Mike, I was thinking of a lookup to map login type to org unit setting. It could be done in the XML or a database table. OPAC might be a decent fallback for missing types, or there could be a default value.