Author: fuujuhi-ml1

Description:
action=raw&templates=expand should return the source code of a page, with templates within the page expanded. However, if these templates contains extension tag that contains template parameters as value, these parameters are not expanded.

For instance, take extension RawFile (http://www.mediawiki.org/wiki/Extension:RawFile). This extension introduce a tag <file>:

<file name="myfile" tag="pre">download</file>
<pre>some text</pre>

When parsed, this tag generates HTML that allows downloading easily the content of the <pre> block.

Now lets create a template {{download}}:

<file name="{{{name}}}" tag="source">download</file>
{{{content}}}

If I create a page with as content:

{{download|name=myfile|content=<pre>
some text
</pre>

Then downloading that page with ?action=raw&templates=expand would produce:

<file name="{{{name}}}" tag="source">download</file>
<pre>
some text
</pre>

When I would in fact expect:

<file name="myfile" tag="source">download</file>
<pre>
some text
</pre>

The strange thing is that the non-replacement only occurs if the tag is indeed a registered tag. If the tag is not known, then all template parameters are replace as in regular wikitext.

I think this the same problem that requires tag parser hook to call $parser->recursiveTagParse( $text, $frame ) to have template parameters expanded. I would recommend to expand recursively as well with option templates=expand, or at least foresee another option (like templates=recurse or template=expandrecurse) that would do the same.

Version: 1.22.1
Severity: normal