Dean G Weber wrote:
> I've been struggling for a while with the dilemma of getting a user into a 
> group. Let me supply some background on what  we've been trying to do with 
> Xwiki.
> 
> We're trying to use Xwiki for an internal collaborative site. Management 
> has decided that users of the wiki must complete proper training. Without 
> the training, the user cannot add to the wiki pages. 
> 
> For authentication, we've connected the wiki to our LDAP server via the 
> xwik.cfg file. Authenticated users are automatically placed into the 
> XWikiAllGroup by default.  In order to accommodate management 
> requirements, I created a new user group... let's call it 
> "TrainedUsersGroup". 
> 
> Once authenticated, users are placed into the Webhome page of the wiki. 
> I've placed Velocity script on the Webhome page to check if the user is in 
> the TrainedUsersGroup. If the user is not in the group, the user is 
> redirected to the NoAccess.WebHome page. 
> 
> On the NoAccess.Webhome page another check is made to determine if the 
> user is in the TrainedUsersGroup. If the user is not in the group,  a call 
> is made to a Groovy class (on another page in the Groovy namespace). The 
> groovy code executes a system call to grep on the Linux system running the 
> Xwiki against a CSV file pulled from an intranet web report. The passed 
> user's login (which is the same as the LDAP user id) is checked against 
> this file. If the returned grep output shows that the training has been 
> completed, the NoAccess.WebHome page will attempt to add the user to the 
> TrainedUsersGroup. If the user is added to the TrainedUsersGroup as 
> determined after another check, the user is redirected back to the 
> originating WebHome page.
> 
> This mechanism works great if the user accessing the pages is an admin. 
> However, if the user is a regular user everything except the addition to 
> the group works. Instead, the code to place the user in the group displays 
> on the page. It does not run and put the user into the TrainedUsersGroup. 
> This is no good for our needs in which we must restrict Xwiki access for 
> non-trained users.
> 
> (My original goal was to connect to our Oracle database and based upon the 
> user id determine directly if the user has completed the training. I've 
> had luck with a simple Groovy script  running on my desktop and on the 
> Linux server. However, from within the Xwiki Groovy console or on a page, 
> I get no output. Therefore, I have abandoned the Oracle query check via 
> Groovy.)
> 
> I've been researching the Xwiki user list for weeks. I've poured over 
> xwiki documentation. I've peeked at wiki page source. I've done all this 
> in an attempt to figure out how to get a user to place himself into a 
> group. I've found a lot of confusing and contradicting information. 
> Programming rights are mentioned. The only place I found the ability to 
> set this right was in the xwiki administration. I can't determine if the 
> problem is even related to programming rights. I've put a debug statement 
> on the NoAccess.WebHome page to print whether the user visiting the page 
> has programming rights. In all cases it display that they do. Yet, only 
> admins can add themselves to the TrainedUsersGroup. This doesn't work for 
> me. I need to automatically add the visiting user to the TrainedUsersGroup 
> once the training has been validated.
> 
> What is the problem? Why won't the user go into the group? Is there a 
> better way of doing this? Any help, code snippets or suggestions would be 
> appreciated. 

How exactly are you adding the user to that group? If you create an 
XWikiGroups object, add it to the group document, then save it, you 
should use saveWithProgrammingRights() instead of save().

-- 
Sergiu Dumitriu
http://purl.org/net/sergiu/
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