https://bugzilla.wikimedia.org/show_bug.cgi?id=19006
Summary: {{REVISIONUSER}} acts like {{CURRENTUSER}} when $this-
>mRevisionId is false
Product: MediaWiki
Version: 1.15-svn
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: Normal
Component: User interface
AssignedTo: [email protected]
ReportedBy: [email protected]
The {{REVISIONUSER}} variable and soon-to-be (per r49575) parserfunction of the
same name have an interesting feature. When subst'd, they act the same as
{{CURRENTUSER}}.
function getRevisionUser() {
// if this template is subst: the revision id will be blank,
// so just use the current user's name
However, this has some interesting side effects, anytime $this->mRevisionId is
false, it uses the current user's name. First noticed in the comments of the
Special:Code extension ->
http://www.mediawiki.org/wiki/Special:Code/MediaWiki/49575#code-comments and
later in http://www.mediawiki.org/wiki/Special:Code/MediaWiki/48837#c2257
(though not in the recent comments feed at
http://www.mediawiki.org/w/index.php?title=Special:Code/MediaWiki/comments&offset=20090420132558&limit=1
).
Also happens in preview, expandtemplates
http://en.wikipedia.org/wiki/Special:ExpandTemplates?input=%3D%3DFoobar%3D%3D%0A%0A%0A%7B%7BREVISIONUSER%7D%7D#Foobar
and any parsing with no revisions:
http://en.wikipedia.org/w/api.php?action=parse&text={{REVISIONUSER}}
This is also possible with many system messages, most notably Newarticletext
and Editnotice. I brought this up at the VPT
http://en.wikipedia.org/w/index.php?title=Wikipedia:Village_pump_(technical)&oldid=293258249#Constructed_link_in_editnotice_is_a_problem
after a quick test in
http://test.wikipedia.org/w/index.php?title=MediaWiki:Newarticletext&diff=74417&oldid=73916
... and soon a very interesting hack was performed:
http://en.wikipedia.org/w/index.php?title=Template:Editnotices/Page/User:Amalthea/test16&oldid=293105080&action=edit
is used on User:Amalthea/test16?action=edit and transcludes the currently
editing user's userpage.
This sort of behavior should probably be disabled? Though would that preclude
the ability to subst it (similar to REVISIONID) or is there a workaround?
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