[Zope] Handling login failures

[Håkan Johansson]

Hi everyone.

I want to be able to block a user from logging in if he fails to give 
the right login/password three times in a row. The problem is that I 
don't know how to do this.

First, I need to know if an attempt failed. This, I have no idea how to 
do.

Second, I need to block the user without deleting him. One problem here 
is that the user can write different login names for the different 
login attempts. We have been thinking about blocking the offender's IP 
for 30 minutes or so and leave it at that. It seems to me that 
SiteAccess.AccessRule could be used for that, but I haven't looked much 
into it yet. The documentation is extremely light.


I have a very clean Zope 2.8.4 installation on a SuSE linux machine.
Logins are handled in the standard Zope way, nothing special added.
The Zope is running as a stand alone server, i.e. no Apache at all.


Another thing: How do I get Zope to log failed authentication attempts? 
Neither event.log or Z2.log shows anything. As Z2.log is the access 
log, I would have guessed that such things should be logged there. If 
not, where and how?