inline has a format hook that is an optimisation hack. Until this hook
runs, the inlined content is not present on the page. This can prevent
other format hooks, that process that content, from acting on inlined
content. In bug ##509710, we discovered this happened commonly for the
embed plugin, but it could in theory happen for many other plugins (color,
cutpaste, etc) that use format to fill in special html after sanitization.
The ordering was essentially random (hash key order). That's kinda a good
thing, because hooks should be independent of other hooks and able to run
in any order. But for things like inline, that just doesn't work.
To fix the immediate problem, let's make hooks able to be registered as
running "first". There was already the ability to make them run "last".
Now, this simple first/middle/last ordering is obviously not going to work
if a lot of things need to run first, or last, since then we'll be back to
being unable to specify ordering inside those sets. But before worrying about
that too much, and considering dependency ordering, etc, observe how few
plugins use last ordering: Exactly one needs it. And, so far, exactly one
needs first ordering. So for now, KISS.
Another implementation note: I could have sorted the plugins with
first/last/middle as the primary key, and plugin name secondary, to get a
guaranteed stable order. Instead, I chose to preserve hash order. Two
opposing things pulled me toward that decision:
1. Since has order is randomish, it will ensure that no accidental
ordering assumptions are made.
2. Assume for a minute that ordering matters a lot more than expected.
Drastically changing the order a particular configuration uses could
result in a lot of subtle bugs cropping up. (I hope this assumption is
false, partly due to #1, but can't rule it out.)
People seem to be able to expect to enter www.foo.com and get away with it.
The resulting my.wiki/www.foo.com link was not ideal.
To fix it, use URI::Heuristic to expand such things into a real url. It
even looks up hostnames in the DNS if necessary.
A new ikiwiki-transition moveprefs subcommand can pull the old data out of
the userdb and inject it into the setup file.
Note that it leaves the old values behind in the userdb too. I did this
because I didn't want to lose data if it fails writing the setup file for
some reason, and the old data in the userdb will only use a small amount of
space. Running the command multiple times will mostly not change anything.
This leads to better display for OpenIDs like smcv.pseudorandom.co.uk
and thm.id.fedoraproject.org (to take a couple of examples from the
IkiWiki commit history).
None of the comment state needs to be stored through the a later run of
ikiwiki, so move it all from pagestate to a more transient storage.
This is assuming that we'll never want to add pagespecs to search against
the comment state. Pagespecs like author() are why the meta plugin does
store its meta data in pagestate -- the data can be needed later to match
against.
The thinking here is that having both a Discussion page and comments for
the same page is redundant, and certianly not what you want if you enable
comments for a page. At first I considered making configurable via pagespec
what pages got discussion links. But that would mean testing a new pagespec
for every page, and a redundant config setting to keep in sync. So intead,
take a lead from my previous change to make inlined pages have a comments
link, and change the discussion link at the top of regular pages to link to
their comments.
(Implementation is a bit optimised to avoid redundant pagespec checking.)
Jumping to the just posted comment was the imputus, but I killed a number
of birds here.
Added a INLINEPAGE template variable, which can be used to add anchors to
any inline template.
To keep that sufficiently general, it is the full page name, so the
comment anchors and links changed form.
Got rid of the FIXMEd hardcoded html anchor div.
More importantly, the anchor is now to the very top of the comment, not the
text below. So you can see the title, and how it attributes you.
Avoid changing the permalink of pages that are not really comments, but
happen to contain the _comment directive. I think that behavior was a bug,
though not a likely one to occur since _comment should only really be used
on comment pages.
I think it is clearer to have one pagespec that controls all pages with
comments, and a separate pagespec that can be used to close new comments on
a subset of those pages.
Not compacting whitespace is the most important one: now that we run
sanitize hooks on individual posted comments in the comments plugin,
whitespace that is significant to Markdown (but not HTML) is lost.
(cherry picked from commit cb5aaa3cee)
The [[!_comment]] directive is a serialization format, not something for
presentation to users, so we should use the least ambiguous possible
representation.
This delays all comment formatting until the last possible time, allows
us to set metadata without worrying that commenters may be able to evade
it, and means that changes to how a comment is saved can be handled
gracefully. It also gives us somewhere to put the commenter's username
or IP address for later reference.
Not compacting whitespace is the most important one: now that we run
sanitize hooks on individual posted comments in the comments plugin,
whitespace that is significant to Markdown (but not HTML) is lost.
This should ensure that users can't "break out" from the enclosing
<div>, making it impossible to forge comments (assuming htmlscrubber
is enabled, and so is either htmlbalance or htmltidy).
wikilinks are harmless, so we might as well allow them.
Access control for this plugin is a bit odd, since we specifically
don't want to allow comments to be edited - so the check is whether the
user is allowed to edit a deliberately invalid page name,
page/commented/on[smcvpostcomment]. You can put smcvpostcomment(*)
or smcvpostcomment(some/subdir/*) in $config{anonok_pagespec}
or the opposite in $config{locked_pages} to allow "editing" (really
just posting) comments.
I wanted this nearer to the top, but decided to put it after the
add_depends. Reasoning: It's possible with a combinaton of feedpages and
show options to make @list and @feedlist contain completly differing sets
of pages. We want to add_depends all pages in both sets. We could combine
the two lists and add_depends that, but it's slightly more efficient to
defer reducing @feedlist, and add_depends whichever list is longer.
holger reported that decode_utf8 was crashing with perl 5.8.8. Earlier, I
thought that passing 0 to the function avoided this with old perls, but
that was apparently not enough, it still crashes. So, put it inside the
eval, so we can at least recover from it crashing.
The old code actually did the same thing, just obfuscated -- since the eval
use wasn't quoted, it used the modules on load. Thus, the error (not to
mentioned the return) was bypassed, and it just failed on load.
But that seems like the right thing to do, really, so just made it clearer
that's what happens.
This is necessary so that things that fork to the background,
like pinger, and inline ping, don't block other cgis from running.
Note that websetup also calls unlockwiki, before refreshing / rebuilding
the wiki. It makes perfect sense for that not to block other cgis.
Fixed by making the cgi wrapper wait on a cgilock.
If you had to set apache's MaxClients low to avoid ikiwiki thrashing
your server, you can now turn it up to a high value.
The downside to this is that a cgi call that doesn't need to call lockwiki
will be serialised by this so only one can run at a time. (For example,
do=search.) There are few such calls, and all of them call loadindex,
so each still eats gobs of memory, so serialising them still seems ok.
This is not needed now that tagpage returns a page name starting with a
slash.
(Also fixes a minor bug that the edit links started with double slashes due
to the hack.)
This speeds up web commits by 1/4th of a second or so, since perl does
not have to start up for the post commit hook.
perl's locking is completly FuBar, since it's impossible to tell what perl
flock() really does, and thus difficult to write code in other languages
that interoperates with perl's locking. (Let alone interoperating with
existing fcntl locking from perl...)
In this particular case, I think I was able to find a way to avoid the
insanity, mostly. The C code does a true flock(2), and if perl is using an
incompatable lock method that does not use the same locking primative at
the kernel level, then the C code's test will fail, and it will go ahead
and run the perl code. Then the perl code's test will test the right thing.
On Debian, at least lately, perl's flock() does a true flock(2), so the
optimisation does work.
Add an inject function, that can be used by plugins that want to replace
one of ikiwiki's functions with their own version. (This is a scary thing
that grubs through the symbol table, and replaces all exported occurances
of a function with the injected version.)
external: RPC functions can be injected to replace exported functions.
Removed the stupid displaytime hook, and use injection instead.
Joey Hess
Simon McVittie
Joey Hess