Item5524: LdapContrib breaks EditTablePlugin authorization

On Twiki 4.2.0, we have just implemented LdapContrib, which we eventually configured to work very well. Using web-level and topic-level access control works great using ldap logins and TWiki groups. Then I noticed that whenever I hit the button to Edit on a EditTable, I get an "Access Denied" oops, even though editing the topic which contains the table works fine. This problem seems to only occur when there is a topic- or web-level access control in effect (ALLOWTOPICVIEW, ALLOWWEBCHANGE, etc). I added a little extra debug output to EditTable's Core.pm and get the following in debug.txt:

| 11 Apr 2008 - 10:44 | - TWiki::Plugins::EditTablePlugin::initPlugin( SslInfo ) is OK
| 11 Apr 2008 - 10:44 | - EditTablePlugin::commonTagsHandler( SslInfo )
| 11 Apr 2008 - 10:44 | - EditTablePlugin::doEnableEdit( SysEng, SslInfo )
| 11 Apr 2008 - 10:44 | - TWiki::Func::getWikiName() = CharlesHerron
- TWiki::Func::checkAccessPermission('change', CharlesHerron, undef, SslInfo, SysEng)
| 11 Apr 2008 - 10:44 | - TWiki::Plugins::EditTablePlugin::initPlugin( SslInfo ) is OK

From the error.log (LdapContrib's output):

constructed a new LdapContrib object
cacheAge=1579, lastUpdate=1207923697, refresh=0
cacheAge=1579, lastUpdate=1207923697, refresh=0
called lookupWikiName(cherron)
called lookupWikiName(cherron)
called lookupWikiName(CharlieHerron)
called lookupWikiName(CharlieHerron)
called lookupWikiName(CharlesHerron)
finishing
constructed a new LdapContrib object
cacheAge=1580, lastUpdate=1207923697, refresh=0
cacheAge=1580, lastUpdate=1207923697, refresh=0
called lookupWikiName(cherron)
called lookupWikiName(cherron)
finishing

-- TWiki:Main/CharlieHerron - 11 Apr 2008

I can confirm this behavior. It seems that only LDAP Users are concerned. If you login in as a TWikiAdmin the EditTablePlugin works just fine.

-- GerhardHeeke - 04 Jun 2008

The patches to TWiki-4.2's user code in Item5118 fixed that for me.

-- MichaelDaum - 04 Jun 2008

Doesn't seem to be related to LdapContrib.

-- MichaelDaum - 09 Nov 2010