[pmwiki-users] Users not logged in get a blank page

Petko Yotov 5ko at 5ko.fr
Tue Mar 31 10:34:46 PDT 2020

Let's say that we need to first try to fix the blank pages problem and 
then the SMF integration (unless it is the integration that causes the 
blank pages).

Also: there appear to be 3 addons for SimpleMachinesForum integration in 
the PmWiki cookbook, which one do you use?


On 31/03/2020 19:28, Petko Yotov wrote:
> Completely blank pages without any message often are caused by a call
> to a function that is not defined - either mis-typed or
> deprecated/removed.
> I'd review all files in the "local" directory if some of them, notably
> those starting with "Engine" and "Main", make some suspicions calls.
> Otherwise, see the page Troubleshooting in the documentation -- it can
> be an older addon that calls an undefined function, or that calls
> htmlspecialchars(). Troubleshooting contains instructions on how to
> track the cause:
>   https://www.pmwiki.org/wiki/PmWiki/Troubleshooting
> First section for tracking, see also the section on blank pages near
> the middle of that page.
> Petko
> --
> If you upgrade :  http://www.pmwiki.org/Upgrades
> On 31/03/2020 18:48, Peter van Es wrote:
>> I have a weird problem on my PmWiki, and it’s behaviour has recently
>> started changing.
>> I have a recent PMWiki installation (version 2.2.127) running on a
>> Ubuntu 16.04.4 LTS version, with a recent plesk update and php7.3
>> It coexists with a SimpleMachinesForum (SMF) installation which is
>> used for user authentication. That install was recently upgraded to
>> version 2.0.17
>> Users logged into the forum have no problem seeing all the content of
>> my Wiki (except for restricted pages) — even if they do not have
>> edit rights.
>> However users not logged into the forum, who used to be able to see
>> all non-restricted content, now get served a completely blank page.
>> I do not have a log in box, because most people log in via the forums.
>> Then their
>> 	* AuthId:
>> 	* Author:
>> are both blank (empty).
>> I have no php errors in my log.
>> The other weird thing: pages which show up blank have images (i.e.
>> uploads) on them. The file and directory access rights have all been
>> set correctly.
>> A page which shows up blank is:
>> https://www.sl113.org/wiki/Engine/Start but it should not
>> Whereas this page just shows: https://www.sl113.org/wiki/Brake/Start
>> Restricted pages show a login box:
>> https://www.sl113.org/wiki/Restricted/Start and start with Group
>> Restricted
>> The startpage of my wiki is: https://www.sl113.org/wiki/ which has a
>> picture and shows just fine…
>> What I would like to achieve is that anonymous browsers can see all of
>> my non-restricted content on the Wiki again…

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