Maruku uses greedy Regexps in a number of places, which,
in unfavourable circumstances, can lead to exponential
slowdowns (an apparent hang).
We worked around one such bug in Revision 355. Recently,
Toby Bartels found another (in Table Header parsing).
The "real" solution seems to be to make sure the Regexps
are not greedy. (Thanks to Sam Ruby for spotting the problem!)
Reverted the workaround in Revision 355, fixed Toby's
bug, and several other similar Regexps.
Using <object> and <embed> were forbidden for obvious
security reasons. Instiki now permits embedding video
via the HTML5 <video> element (Ogg/Theora encoded videos
only, with .ogg or .ogv extensions). You can even upload
videos with
[[foo.ogg:video]]
Instiki now support x-sendfile. See the Proxying page for
configuring Apache (with the x-sendfile module). Lighttpd
should work similarly.
Update Rails to latest Edge (hopefully converging on RC2!).
A Maruku-syntax <div> with an unclosed IAL (and, it seems, at least one equation)
would cause Instiki to hang. Badly. Requiring a 'kill -9' to terminate it.
Reverting the OpenDiv and CloseDiv Regexps to my, more simple-minded, versions
fixes the problem.
Instiki now runs on the Rails 2.3.0 Candidate Release.
Among other improvements, this means that it now
automagically selects between WEBrick and Mongrel.
Just run
./instiki --daemon
Some more tests from Clint Ruoho. The main branch of Instiki (and, I guess,
the old sanitizer) are vulnerable.
Also: under Ruby 1.8.x, CGI.unescapeHTML screws up horribly decoding NCRs
which represent high-bit ASCII characters. UTF-8 agrees with 7-bit ASCII,
but CGI.unescapeHTML doesn't seem to know that they disagree for i>127.
Update dnsbl_check plugin to latest version.
Update Maruku to latest version.
In the wiki_controller, only apply the dnsbl_check before_filter
to the :edit, :new, and :save actions, instead of all actions.
This makes mundane "show" requests faster, but does not
compromise spam-fighting ability.
Fix Session CookieOverflow bug when rescuing an InstikiValidation error.
Fix some random things which will cause problems with Ruby 1.9. (Plenty
more where those came from.)
Implement amsthm-like Theorem environments with Maruku.
Support is based on Maruku "div"s with special class-names.
Classes
num_*
produce numbered environments, and
un_*
produce un-numbered environments, where * is one of
theorem (for Theorem)
lemma (for Lemma)
prop (for Proposition)
cor (for Corollary)
def (for Definition)
example (for Example)
remark (for Remark)
note (for Note)
In addition, the class
proof
produces a Proof environment.
The LaTeX export works as expected, and these also work in the S5 view.
Bumped version number.
Start work (which may not pan out) on a new sanitizer. Right now, it passes
all but 1 of the HTML5lib Sanitizer's unit tests. But it doesn't do much
of anything to ensure well-formedness. This is not an issue for Maruku-processed
content, but it is a concern for <nowiki> blocks.
(One solution would be to use the HTML5lib parser on <nowiki> blocks.)
In any case, this baby is 3 times as fast as the HTML5lib sanitizer.
The action_cache plugin is now rather superfluous (Rails has native support for ETags, for instance).
And it wasn't working right with Rails 2.0.x (pages were being cached, and 304s were being returned
as appropriate, but cached pages were not being served).
Sessions are now stored in a cookie (signed and Base-64 encoded).
Form_spam_protection stores form_keys in the session.
Make sure spambots implement both cookies and javascript, by storing hashed (with salt) keys in the session.
In each session, keep only the 30 most recent :form_keys generated by form_spam_protection.
This should be more than enough for ordinary usage, but prevents the session data from
becoming inordinately large.
Also, burnt-orange rulz!
Sam Ruby has been doing a bang-up job fixing the bugs in REXML.
Who knows when these improvements will trickle down to vendor distributions of Ruby.
In the meantime, let's bundle the latest version of REXML with Instiki.
We check the version number of the bundled REXML against that of the System REXML, and use whichever is later.
Upgraded to Rails 2.0.2, except that we maintain
vendor/rails/actionpack/lib/action_controller/routing.rb
from Rail 1.2.6 (at least for now), so that Routes don't change. We still
get to enjoy Rails's many new features.
Also fixed a bug in Chunk-handling: disable WikiWord processing in tags (for real this time).
Create a test case for utf-8 bug reported by Diego Restrepo. Seems to be related to WikiWord chunk handling.
Add some other tests, and fix a minor bug in vendor/plugins/maruku/lib/maruku/ext/math/latex_fix.rb.
Fixed a bug in the HTML5lib tokenizer (affects S5 slideshows).
Some miscellaneous code cleanup. In particular, don't bother with zapping control characters;
instead, rely on is_utf8? method to raise an exception (which we do anyway).
Added support for S5 Themes. Themes are stored in the public/s5/themes/ directory.
6 themes are included: default, nautilus, blue, flower, i18n, pixel.
Files with "+"s in their names (e.g. from Wiki pages with spaces in their names) were not being expired properly. This is actually a Rails bug, but I fixed it by patching the action_cache plugin.
Synced with latest version of HTML5lib, which fixes problem with Astral plane characters.
I should really do some tests, but the HTML5lib Sanitizer seems to be 2-5 times slower than the old sanitizer.
Added the action_cache plugin
http://agilewebdevelopment.com/plugins/action_cache
which does action-caching with ETags support. The built-in Rails ETags "solution" sucks, because it forces a page-rerender, even when the content is unchanged.
