ikiwiki/doc/bugs/CGI_problem_with_some_webse...

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The "ikwiki.cgi?page=index&do=edit" function has a problem
when running with [[!debpkg thttpd]] or [[!debpkg mini-httpd]]:
for some reason the headers ikiwiki outputs are transmitted
as the page content. Surprisingly, the "do=prefs" function
works as expected.
Here is what it looks like in iceweasel:
Set-Cookie: ikiwiki_session_apnkit=99dad8d796bc6c819523649ef25ea447; path=/
Date: Tue, 14 Aug 2007 17:16:32 GMT
Content-Type: text/html; charset=utf-8
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
(...)
Ikiwiki runs fine with [[!debpkg boa]].
--[[JeremieKoenig]]
It doesn't work for signin either.
What is the reason for these "header => 1" in FormBuilder initialisations?
Why do they appear two times with conflicting values in the very same hashes?
2007-08-14 20:06:18 +02:00
--[[JeremieKoenig]]
> Clearly those duplicate header settings are a mistake. But in all cases, the
> `header => 0` came second, so it _should_ override the other value and
> can't be causing this problem. (cgi_signin only sets it to 0, too).
>
> What version of formbuilder are you using? If you run ikiwiki.cgi at the
> command line, do you actually see duplicate headers? I don't:
joey@kodama:~/html>REQUEST_METHOD=GET QUERY_STRING="page=index&do=edit" ./ikiwiki.cgi
Set-Cookie: ikiwiki_session_joey=41a847ac9c31574c1e8f5c6081c74d12; path=/
Date: Tue, 14 Aug 2007 18:04:06 GMT
Content-Type: text/html; charset=utf-8
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
> Do thttpd and mini-httpd perhaps not realize that Set-Cookis is the start of
> the headers? --[[Joey]]
>> Thanks for your help: I think I found the problem!
>> Ikiwiki outputs (in my case) the following
>> error message on stderr, followed by an empty line:
/srv/ikiwiki/wc/index.mdwn: (Not a versioned resource)
>> Probably thttpd and mini-httpd read stderr as well as stdout, while apache
>> and boa don't. When using a shell-script wrapper as the CGI,
>> which redirects ikiwiki's error output to /dev/null, it works better.
>> The edit still fails to commit, because in my wiki, index.mdwn is
>> pulled from the base wiki and somehow ikiwiki wants to change it
>> rather that create it.
>> --[[JeremieKoenig]]
2007-08-14 22:10:52 +02:00
>>> If thttpd and mini-httpd interpret CGI's stderr as stdout, then
>>> they're not properly following the CGI spec, and will break with tons
>>> of cgi scripts besides ikiwiki. And of course there are many many cases
>>> where ikiwiki might output to stderr, and that's the right thing to do.
>>> So I don't see any way to address this in ikiwiki. --[[Joey]]
>>>> (reported as [[!debbug 437927]] and [[!debbug 437932]]) --[[JeremieKoenig]]
2007-08-22 03:06:35 +02:00
Marking [[done]] since it's not really an ikiwiki bug. --[[Joey]]
2009-07-12 22:31:09 +02:00
I'm getting some odd behaviour with boa. When I edit a page and click "Save
Page", the URL I get taken to produces a 403 - Forbidden error until I recompile
the wiki. For example, after editing the root page of the wiki it brings me back to
`http://localhost/~pdw/iki/?updated`, and I see a 403 error message. Then, if
I open up a terminal and type `ikiwiki --setup ikiwiki.setup`, and then go back
to the browser and hit Ctrl-R, the page displays correctly, with the same URL
that gave an error a moment ago. This is with boa 0.94.14rc21-3 and Firefox
3.0.11 on Ubuntu 9.04. I get the feeling I'm doing something wrong somewhere;
any suggestions where to start looking? This is a very basic setup, so feel
free to ask. --Paul
Tried setting up a git repository back-end for the wiki, in case the `post-update`
hook caused the right updates to happen; it didn't. (But I do now have my wiki
in git!)
Turns out that `.../destdir/index.html` was being recreated after a web edit, or
at least having its permissions modified, and being left without world-read
permissions. Boa was then rightly refusing to serve the page. Adding the
`umask 022` config option to `ikiwiki.setup` fixed everything, and all
appears to be working fine now. --Paul.
(I'm new to wiki etiquette - would it be more polite to leave these details on the
wiki, or to remove them and only leave a short summary? Thanks. --Paul)