From the source of usage:

<a href="mailto:joey@ikiwiki.info">&#x6A;&#111;&#101;&#x79;&#64;i&#107;&#105;w&#105;&#107;&#x69;&#46;&#105;n&#x66;&#x6F;</a>

Text::Markdown obfuscates email addresses in the href= attribute and in the text. Apparently this can't be configured.

HTML::Scrubber doesn't set attr_encoded for its HTML::Parser, so the href= attribtute is decoded. Currently it seems it doesn't set attr_encoded for good reason: so attributes can be sanitized easily, e.g. as in htmlscrubber with $safe_url_regexp. This apparently can't be configured either.

So I can't see an obvious solution to this. Perhaps improvements to Text::Markdown or HTML::Scrubber can allow a fix.

One question is: how useful is email obfuscation? Don't spammers use HTML parsers?

I now see this was noted in the formatting discussion, and won't/can't be fixed. So I guess this is done. --Gabriel

I've patched mdwn.pm to prevent Text::Markdown from obfuscating the emails. The relevant commits are on the master branch of my "fork" of ikiwiki on Github:

  • 7d0970adbcf0b63e7e5532c239156f6967d10158
  • 52c241e723ced4d7c6a702dd08cda37feee75531

--Gabriel.

Thanks for coming up with a patch, but overriding Text::Markdown::_EncodeEmailAddress gets into its internals more than I'm comfortable with.

It would probably be best to add an option to Text::Markdown to let the email address munging be disabled. --Joey