Since ikiwiki uses open :utf8, perl assumes that files contain valid utf-8.
If it turns out to be malformed it may later crash while processing strings
read from them, with 'Malformed UTF-8 character (fatal)'.
As at least a quick fix, use utf8::valid as soon as data is read, and if
it's not valid, call encode_utf8 on the string, thus clearing the utf-8
flag. This may cause follow-on encoding problems, but will avoid this
crash, and the input file was broken anyway, so GIGO is a reasonable
response. (I looked at calling decode_utf8 after, but it seemed to cause
more trouble than it was worth. BTW, use open ':encoding(utf8)' avaoids
this problem, but the corrupted data later causes Storable to crash when
writing the index.)
This is a quick fix, clearly imperfect:
- It might be better to explicitly call decode_utf8 when reading files,
rather than using the IO layer.
- Data read other than by readfile() can still sneak in bad utf-8. While
ikiwiki does very little file input not using it, stdin for the CGI
would be one way.
* Stop busy-waiting in lockwiki, as this could delay ikiwiki from waking up
for up to one second. The bailout code is no longer needed.
* Remove support for unused optional wait parameter from lockwiki.
Yahoo! has been pounding on ikiwiki.cgi again. While I'd prefer ikiwiki to
generate sites that avoided robots hitting it in other ways, I'm adding a
robots.txt, at least temporarily.
ikiwiki/markdown is a basewiki page and shouldn't link to pages in tips.
Instead, make the tips link to it, so backlinks will point back to them.
While I'm at it, move the info about the emacs mode to a tip.
Joey Hess
http://smcv.pseudorandom.co.uk/
Simon McVittie
intrigeri
http://edward.myopenid.com/
bcdugga
Jon Dowland
Jon Dowland
http://alcopop.org/me/openid/
http://a1fie.livejournal.com/
AlexandreDupas
http://josephturian.blogspot.com/