Question

Hello,

when I restrict a web with ALLOWTOPICVIEW to a group of users, the Revision History denies view access, even if I am Main TWiki Administrator. Any idea, what I meade wrong? JR

Added Comment from JensRoeder:

I found out that the rdiffauth does work properly, only the switching from rdiff to rdiffauth does not. When checking the sent output, the Moved redirection leads to the deny oops:

Location: [...] /bin/oops/Termine/WebHome?template=oopsaccessview

instead to the rdiffauth. Any idea, why?

Environment

-- JensRoeder - 10 Apr 2005

Answer

It looks like your installation does not track users, so rdiff always sees just TWikiGuest, also if it is you. Enable partial authentication (TWikiUserAuthentication#Partial_Authentication) or track the user with cookies.

-- PeterThoeny - 07 Jun 2005

I have had a similar problem from beginning, but never got time to diagnose it. Today, I looked at it bit closely.

The '>' links and 'Total page history' links on Topics controlled by either ALLOWTOPICVIEW or ALLOWWEBVIEW go via 'rdiff' instead of 'rdiffauth'.

.../twiki/bin/rdiff/KnowledgeBase/MyTopic?rev1=1.53&rev2=1.52

If I just change cut-n-paste the above URL in my browser and change 'rdiff' to 'rdiffauth', I get the expected results.

So, the '>' and 'Total page history' link generation in 'view' code needs to be fixed to use 'rdiffauth' instead of 'rdiff' when handling the protected topics (e.g. via ALLOWTOPICVIEW or ALLOWWEBVIEW).

-- RahulPandey - 19 Feb 2006

Just to confirm Peter Thoeny comment. When I do a compare revision, I get the Revision 17 is unreadable message in the result comparison page.

The access rights in my WebPreferences are set as follow:

#Set DENYWEBVIEW =
Set ALLOWWEBVIEW = TWikiAdminGroup , SAAMDeveloppersGroup, SAAMReadOnlyGroup 

The data/logxxxxxx.txt file does show rdiff being executed on behalves of TWikiGuest:

| 19 Jul 2007 - 15:16 | TWikiGuest | rdiff | SAAM.WikiSaamInstallationGuide | 6 5 Mozilla | 153.98.68.197 |

If I add TWikiGuest to the Set ALLOWWEBVIEW the problem disappears. (This is a quick fix and I really should follow Peter's recommendation if I want to keep my access rights as before)

Keywords for search engines: twiki revision unreadable

My configuration: TWiki-4.1.1, Mon, 05 Feb 2007, build 12770

-- MichelDenys - 20 Jul 2007