X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/e15352066de1815f43ae4bb9891f303caf2b5adb..d7359b76cb626e199c37c2610ecf8980a0c81bc4:/doc/patchqueue/various_fixes.mdwn diff --git a/doc/patchqueue/various_fixes.mdwn b/doc/patchqueue/various_fixes.mdwn index 8de4974e4..318e7e941 100644 --- a/doc/patchqueue/various_fixes.mdwn +++ b/doc/patchqueue/various_fixes.mdwn @@ -36,6 +36,21 @@ sure what the CGI was running under. > Can you reproduce the problem running svn info outside of ikiwiki? > --[[Joey]] +>> I've now managed to reproduce the problem. I'll try and give some more information. +>> When going to the Recent Changes link I get + + [Sat Sep 16 15:16:08 2006] [error] [client xxxx] svn: Can't check path '/home/jw2328/.subversion': Permission denied, referer: http://xxxxx/test/sandbox.html + [Sat Sep 16 15:16:08 2006] [error] [client xxxx] Use of uninitialized value in concatenation (.) or string at /usr/lib/perl5/site_perl/5.8.3/IkiWiki/Rcs/svn.pm line 145., referer: http://xxxx/test/sandbox.html + [Sat Sep 16 15:16:08 2006] [error] [client xxxxx] svn: Can't check path '/home/jw2328/.subversion': Permission denied, referer: http://xxxx/test/sandbox.html + [Sat Sep 16 15:16:09 2006] [error] [client xxxx] File does not exist: at /usr/lib/perl5/site_perl/5.8.3/IkiWiki/Rcs/svn.pm line 145, referer: http://xxxx/test/sandbox.html + [Sat Sep 16 15:16:09 2006] [error] [client xxxx] Premature end of script headers: ikitest, referer: http://xxxx/test/sandbox.html + +>> which the $svn_url is causing the uninitialised value, due to the +>> LANG=C it seems, as if I remove it it goes away. +>> The file does not exist is due to the unreadable .subversion. +>> echoing the LANG before it is set shows that the variable is normally +>> empty for the user that is running it. + The second removes problems with cannot access /home/$user/.svnsomething in the logs. I think this problem was also fatal (I should have reported these sooner). @@ -57,26 +72,20 @@ much help I'm afraid. > > What's the error message? --[[Joey]] ----- +>> `svn: Can't check path '/home/jw2328/.subversion': Permission denied,` +>> where jw2328 is my usual user. +>> I have restrictive permissions of 0700 on home dirs on the server, +>> and the CGI is running as uid apache, euid root. (Not my setup anymore). +>> The way I had it set up, was jw2328 owning thesource dir, and the svn repo, +>> with g+sw on them both. I ran sudo ikiwiki --setup though, as I was reluctant +>> to adjust permissions on my cgi-dir. This seems to be the root of the +>> problem. + +>>> Ah, I think it's better to keep the permissions of the repository +>>> and source directory sane (755) and make the cgi suid to your user, +>>> which is how it's designed to work. - --- IkiWiki/Plugin/search.pm - +++ IkiWiki/Plugin/search.pm - @@ -99,7 +99,7 @@ - close TEMPLATE; - $cgi="$estdir/".IkiWiki::basename($config{cgiurl}); - unlink($cgi); - - symlink("/usr/lib/estraier/estseek.cgi", $cgi) || - + symlink("/usr/local/libexec/estseek.cgi", $cgi) || - error("symlink $cgi: $!"); - } # }}} - -obviously I'm not asking you to include this patch, but it would -be good if this sort of thing was configurable (at build time?). I can -have a go if you like, but I'm not sure what would be acceptable to -you. - -> This should be made configurable via an option in %IkiWiki::config, -> the search plugin could register a getopt hook to handle it. --[[Joey]] +>>>> I realise that now, and I now have a much more sane setup that works. ---- @@ -133,25 +142,31 @@ informative if that code path is ever taken, but I hope that it never is. > > --[[Joey]] ----- - -As for backports there is a problem with the sarge version of libcgi-session-perl -and my sslcookie patch (complaints about a missing include file auto/CGI/Session/cookie.al IIRC). -This file does not and has not ever existed, but it appears to be fixed in -the backport of libcgi-session-perl that I did. That puts the dependency -required at somewhere between 3.95-2 and 4.14-1. This could then be added -to debian/control. It would mean one more package to backport, but stops the -bug if anyone actually uses my sslcookie option except me. - -> May as well, done --[[Joey]] - -As for backports I managed with - - * ikiwiki_1.26 - * libcgi-formbuilder-perl_3.03.01-1 - * libcgi-session-perl_4.14-1 - -backported to sarge, with bpo in sources.list. This only covers Depends: though, -for instance hyperestraier needs to be backported, which I haven't got -round to yet as there is a chain to do. - +>> It seems like it is always the (with instrumentation) + + elsif ($word =~ /^(link|backlink|created_before|created_after|creation_month|creation_year|creation_day)\((.+)\)$/) { + warn("\$1 tainted=".tainted($1).", \$2 tainted=".tainted($2)." \$code tainted=".tainted($code)); + $code.=" match_$1(\$page, ".safequote($2).")"; + warn("\$1 tainted=".tainted($1).", \$2 tainted=".tainted($2)." \$code tainted=".tainted($code)); + warn("safequote tainted=".tainted(safequote($2))); + } + +>> bit that causes it. With the following trace: + + $1 tainted=0, $2 tainted=0 $code tainted=0 at IkiWiki.pm line 718. + $1 tainted=0, $2 tainted=0 $code tainted=1 at IkiWiki.pm line 720. + safequote tainted=0 at IkiWiki.pm line 721. + +>> which shows that `$code` appears to become tainted from nowhere. +>> +>> is what pointed me to find the problem/workaround. + +>>> Given that verification, an untaint contingent on the value of $^V +>>> sounds reasonable and I'd accept such a patch. I'm not quite sure which +>>> version(s) of perl it should check for. + +>>>> I'm not going to write one though. I don't know what versions either, +>>>> but I think the evil of the special case is too much in this case. If +>>>> you are happy to insist on a newer version of perl then I will leave +>>>> it at that and sort something out locally. If you want the patch I will +>>>> code it though, as I realise you may want to support sarge installs.