ayg wrote:

Already the case for trying to edit protected or interface pages, but oddly not
for blocked users or for wikis you can't edit altogether
(!$wgGroupPermissions[you]['edit']).

• This bug has been marked as a duplicate of 1859 ***

rotemliss wrote:

I think that this bug suggests not to just show the source, but make it a
*complete* edit view, along with the possibility to preview pages, show diffs,
etc. - but with disabled save buttons, and error if trying to save.

However, there is a problem with this proposal: When using wikis with no read
permissions but with some whitelisted pages, the user can use the template
syntax and preview it to show pages, and therefore can view pages – he is not
required to edit, just to preview. The right way may be to disable editing
completely (and everything else, actually) if the user cannot read, even in
viewable pages – automatically.