[Zope] query variable lost with exUserFolder

[Hong Yuan]

Hi there,

I justed tried out exUserFolder (0.20.1 on Zope 2.7.0) to authenticate 
part of my site against a PostgreSQL data source, but find that after 
the user is correctly authenticated by the default docLogin form, the 
redirect back to the original URL is not working as I expected, in that 
all the query variables were lost. As an example, the original URL that 
should be protected by authentication is for example:

http://192.168.192.128:8080/test/supplier/addItemForm?art=10000261

It is redirected to the docLogin form by docLoginRedirect.dtml using the 
following URL:

http://192.168.192.128:8080/test/supplier/acl_users/redirectToLogin?destination=http://192.168.192.128:8080/test/supplier/addItemForm

The query_string part of the original URL is now there anymore!

Having looked at docLoginRedirect.dtml, I noticed that it called 
makeRedirectPath, which is supposed to calculate the correct redirect 
path, including query string. But the path is returned in variable 
destination, which is not ever used in docLoginRedirect. I think this 
should be a bug.

Even if the query_string can be preserved by e.g. using dtml-destination 
in place of dtml-URL in docLoginRedirect.dtml, I still can't get the 
redirect to work. The docLogin form is using <FORM 
ACTION="&dtml-destination;" METHOD="POST"> to go back to the original 
page. But it seems that the ACTION field can't simply take URL with 
query strings. The URL is correct now, but browser shows a HTTP 500 
error and displays nothing. Only when I refresh the page does the 
content get displayed correctly.

Can someone advise how to get exuserfolder work smoothly with URL with 
query string?

Thanks for any advice.

Hong Yuan