I can't get an Unauthorized exception view to work with current Zope
2.12 svn. My approach was:
- add a dummy PAS challenge plugin which does nothing, effectively
delegating everything to my Unauthorized exception view
- register a browser view for Unauthorized and return a proper error
message there
unexpectedly the result is a stock Zope2 site error page. What seems to
happen is that everything works correctly, up to this point the
zpublisher exception hook in Zope2.App.startup:
if issubclass(t, Unauthorized):
# Re-raise Unauthorized to make sure it is handled
# correctly. We can't do that with all exceptions
# because some don't work with the rendered v as
# argument.
raise t, v, traceback
v is the html as generated by my view. Reraising the exception transfers
control to the bare except in
ZPublisher.Publish.publish_module_standard, which generates the standard
site error page and returns that.
What is the reason for re-raising Unauthorized there? There is no
special processing for it anywhere up in the call stack, so I can see no
benefit to it. If I remove that code block so we always return the
result of the view everything works as I would expect.
Wichert.
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