X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/b0e7e2e123079a2e68924cfb90d19c44571b1f65..0b977fa22cabf8e1050857412123015c07c30c19:/IkiWiki.pm?ds=sidebyside diff --git a/IkiWiki.pm b/IkiWiki.pm index a2af406a9..0c1df8b47 100644 --- a/IkiWiki.pm +++ b/IkiWiki.pm @@ -3,62 +3,136 @@ package IkiWiki; use warnings; use strict; -use File::Spec; -use HTML::Template; +use Encode; +use HTML::Entities; +use URI::Escape q{uri_escape_utf8}; +use POSIX; +use open qw{:utf8 :std}; -use vars qw{%config %links %oldlinks %oldpagemtime %pagectime - %renderedfiles %pagesources %depends %hooks}; +use vars qw{%config %links %oldlinks %pagemtime %pagectime %pagecase + %renderedfiles %oldrenderedfiles %pagesources %destsources + %depends %hooks %forcerebuild $gettext_obj}; + +use Exporter q{import}; +our @EXPORT = qw(hook debug error template htmlpage add_depends pagespec_match + bestlink htmllink readfile writefile pagetype srcfile pagename + displaytime will_render gettext urlto targetpage + add_underlay + %config %links %renderedfiles %pagesources %destsources); +our $VERSION = 2.00; # plugin interface version, next is ikiwiki version +our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE +my $installdir=''; # INSTALLDIR_AUTOREPLACE done by Makefile, DNE + +# Optimisation. +use Memoize; +memoize("abs2rel"); +memoize("pagespec_translate"); +memoize("file_pruned"); sub defaultconfig () { #{{{ - wiki_file_prune_regexp => qr{((^|/).svn/|\.\.|^\.|\/\.|\.html?$|\.rss$)}, - wiki_link_regexp => qr/\[\[(?:([^\]\|]+)\|)?([^\s\]]+)\]\]/, - wiki_processor_regexp => qr/\[\[(\w+)\s+([^\]]*)\]\]/, + return + wiki_file_prune_regexps => [qr/\.\./, qr/^\./, qr/\/\./, + qr/\.x?html?$/, qr/\.ikiwiki-new$/, + qr/(^|\/).svn\//, qr/.arch-ids\//, qr/{arch}\//, + qr/(^|\/)_MTN\//, + qr/\.dpkg-tmp$/], + wiki_link_regexp => qr{ + \[\[ # beginning of link + (?: + ([^\]\|\n]+) # 1: link text + \| # followed by '|' + )? # optional + + ([^\s\]#]+) # 2: page to link to + (?: + \# # '#', beginning of anchor + ([^\s\]]+) # 3: anchor text + )? # optional + + \]\] # end of link + }x, wiki_file_regexp => qr/(^[-[:alnum:]_.:\/+]+$)/, + web_commit_regexp => qr/^web commit (by (.*?(?=: |$))|from (\d+\.\d+\.\d+\.\d+)):?(.*)/, verbose => 0, + syslog => 0, wikiname => "wiki", - default_pageext => ".mdwn", + default_pageext => "mdwn", + htmlext => "html", cgi => 0, - rcs => 'svn', + post_commit => 0, + rcs => '', notify => 0, url => '', cgiurl => '', historyurl => '', diffurl => '', - anonok => 0, rss => 0, + atom => 0, discussion => 1, rebuild => 0, refresh => 0, getctime => 0, + w3mmode => 0, wrapper => undef, wrappermode => undef, svnrepo => undef, svnpath => "trunk", + gitorigin_branch => "origin", + gitmaster_branch => "master", srcdir => undef, destdir => undef, pingurl => [], - templatedir => "/usr/share/ikiwiki/templates", - underlaydir => "/usr/share/ikiwiki/basewiki", + templatedir => "$installdir/share/ikiwiki/templates", + underlaydir => "$installdir/share/ikiwiki/basewiki", + underlaydirs => [], setup => undef, adminuser => undef, adminemail => undef, - plugin => [qw{inline htmlscrubber}], + plugin => [qw{mdwn inline htmlscrubber passwordauth openid signinedit + lockedit conditional}], + libdir => undef, timeformat => '%c', + locale => undef, + sslcookie => 0, + httpauth => 0, + userdir => "", + usedirs => 1, + numbacklinks => 10, + account_creation_password => "", } #}}} - + sub checkconfig () { #{{{ - if ($config{cgi} && ! length $config{url}) { - error("Must specify url to wiki with --url when using --cgi\n"); + # locale stuff; avoid LC_ALL since it overrides everything + if (defined $ENV{LC_ALL}) { + $ENV{LANG} = $ENV{LC_ALL}; + delete $ENV{LC_ALL}; } - if ($config{rss} && ! length $config{url}) { - error("Must specify url to wiki with --url when using --rss\n"); + if (defined $config{locale}) { + if (POSIX::setlocale(&POSIX::LC_ALL, $config{locale})) { + $ENV{LANG}=$config{locale}; + $gettext_obj=undef; + } + } + + if ($config{w3mmode}) { + eval q{use Cwd q{abs_path}}; + error($@) if $@; + $config{srcdir}=possibly_foolish_untaint(abs_path($config{srcdir})); + $config{destdir}=possibly_foolish_untaint(abs_path($config{destdir})); + $config{cgiurl}="file:///\$LIB/ikiwiki-w3m.cgi/".$config{cgiurl} + unless $config{cgiurl} =~ m!file:///!; + $config{url}="file://".$config{destdir}; + } + + if ($config{cgi} && ! length $config{url}) { + error(gettext("Must specify url to wiki with --url when using --cgi")); } $config{wikistatedir}="$config{srcdir}/.ikiwiki" unless exists $config{wikistatedir}; if ($config{rcs}) { - eval qq{require IkiWiki::Rcs::$config{rcs}}; + eval qq{use IkiWiki::Rcs::$config{rcs}}; if ($@) { error("Failed to load RCS module IkiWiki::Rcs::$config{rcs}: $@"); } @@ -67,42 +141,96 @@ sub checkconfig () { #{{{ require IkiWiki::Rcs::Stub; } - foreach my $plugin (@{$config{plugin}}) { - my $mod="IkiWiki::Plugin::".possibly_foolish_untaint($plugin); - eval qq{use $mod}; - if ($@) { - error("Failed to load plugin $mod: $@"); + run_hooks(checkconfig => sub { shift->() }); + + return 1; +} #}}} + +sub loadplugins () { #{{{ + if (defined $config{libdir}) { + unshift @INC, possibly_foolish_untaint($config{libdir}); + } + + loadplugin($_) foreach @{$config{plugin}}; + + run_hooks(getopt => sub { shift->() }); + if (grep /^-/, @ARGV) { + print STDERR "Unknown option: $_\n" + foreach grep /^-/, @ARGV; + usage(); + } + + return 1; +} #}}} + +sub loadplugin ($) { #{{{ + my $plugin=shift; + + return if grep { $_ eq $plugin} @{$config{disable_plugins}}; + + foreach my $dir (defined $config{libdir} ? possibly_foolish_untaint($config{libdir}) : undef, + "$installdir/lib/ikiwiki") { + if (defined $dir && -x "$dir/plugins/$plugin") { + require IkiWiki::Plugin::external; + import IkiWiki::Plugin::external "$dir/plugins/$plugin"; + return 1; } } - if (exists $hooks{checkconfig}) { - foreach my $id (keys %{$hooks{checkconfig}}) { - $hooks{checkconfig}{$id}{call}->(); - } - } + my $mod="IkiWiki::Plugin::".possibly_foolish_untaint($plugin); + eval qq{use $mod}; + if ($@) { + error("Failed to load plugin $mod: $@"); + } + return 1; } #}}} -sub error ($) { #{{{ +sub error ($;$) { #{{{ + my $message=shift; + my $cleaner=shift; if ($config{cgi}) { print "Content-type: text/html\n\n"; - print misctemplate("Error", "

Error: @_

"); + print misctemplate(gettext("Error"), + "

".gettext("Error").": $message

"); } - die @_; + log_message('err' => $message) if $config{syslog}; + if (defined $cleaner) { + $cleaner->(); + } + die $message."\n"; } #}}} sub debug ($) { #{{{ return unless $config{verbose}; - if (! $config{cgi}) { - print "@_\n"; + return log_message(debug => @_); +} #}}} + +my $log_open=0; +sub log_message ($$) { #{{{ + my $type=shift; + + if ($config{syslog}) { + require Sys::Syslog; + if (! $log_open) { + Sys::Syslog::setlogsock('unix'); + Sys::Syslog::openlog('ikiwiki', '', 'user'); + $log_open=1; + } + return eval { + Sys::Syslog::syslog($type, "[$config{wikiname}] %s", join(" ", @_)); + }; + } + elsif (! $config{cgi}) { + return print "@_\n"; } else { - print STDERR "@_\n"; + return print STDERR "@_\n"; } } #}}} sub possibly_foolish_untaint ($) { #{{{ my $tainted=shift; - my ($untainted)=$tainted=~/(.*)/; + my ($untainted)=$tainted=~/(.*)/s; return $untainted; } #}}} @@ -123,12 +251,10 @@ sub dirname ($) { #{{{ sub pagetype ($) { #{{{ my $page=shift; - if ($page =~ /\.mdwn$/) { - return ".mdwn"; - } - else { - return "unknown"; + if ($page =~ /\.([^.]+)$/) { + return $1 if exists $hooks{htmlize}{$1}; } + return; } #}}} sub pagename ($) { #{{{ @@ -136,50 +262,75 @@ sub pagename ($) { #{{{ my $type=pagetype($file); my $page=$file; - $page=~s/\Q$type\E*$// unless $type eq 'unknown'; + $page=~s/\Q.$type\E*$// if defined $type; return $page; } #}}} -sub htmlpage ($) { #{{{ +sub targetpage ($$) { #{{{ my $page=shift; + my $ext=shift; + + if (! $config{usedirs} || $page =~ /^index$/ ) { + return $page.".".$ext; + } else { + return $page."/index.".$ext; + } +} #}}} - return $page.".html"; +sub htmlpage ($) { #{{{ + my $page=shift; + + return targetpage($page, $config{htmlext}); } #}}} sub srcfile ($) { #{{{ my $file=shift; return "$config{srcdir}/$file" if -e "$config{srcdir}/$file"; - return "$config{underlaydir}/$file" if -e "$config{underlaydir}/$file"; - error("internal error: $file cannot be found"); + foreach my $dir (@{$config{underlaydirs}}, $config{underlaydir}) { + return "$dir/$file" if -e "$dir/$file"; + } + error("internal error: $file cannot be found in $config{srcdir} or underlay"); + return; } #}}} -sub readfile ($;$) { #{{{ +sub add_underlay ($) { #{{{ + my $dir=shift; + + if ($dir=~/^\//) { + unshift @{$config{underlaydirs}}, $dir; + } + else { + unshift @{$config{underlaydirs}}, "$config{underlaydir}/../$dir"; + } + + return 1; +} #}}} + +sub readfile ($;$$) { #{{{ my $file=shift; my $binary=shift; + my $wantfd=shift; if (-l $file) { error("cannot read a symlink ($file)"); } local $/=undef; - open (IN, $file) || error("failed to read $file: $!"); - if (! $binary) { - binmode(IN, ":utf8"); - } - else { - binmode(IN); - } - my $ret=; - close IN; + open (my $in, "<", $file) || error("failed to read $file: $!"); + binmode($in) if ($binary); + return \*$in if $wantfd; + my $ret=<$in>; + close $in || error("failed to read $file: $!"); return $ret; } #}}} -sub writefile ($$$;$) { #{{{ +sub writefile ($$$;$$) { #{{{ my $file=shift; # can include subdirs my $destdir=shift; # directory to put file in my $content=shift; my $binary=shift; + my $writer=shift; my $test=$file; while (length $test) { @@ -188,8 +339,12 @@ sub writefile ($$$;$) { #{{{ } $test=dirname($test); } + my $newfile="$destdir/$file.ikiwiki-new"; + if (-l $newfile) { + error("cannot write to a symlink ($newfile)"); + } - my $dir=dirname("$destdir/$file"); + my $dir=dirname($newfile); if (! -d $dir) { my $d=""; foreach my $s (split(m!/+!, $dir)) { @@ -199,39 +354,83 @@ sub writefile ($$$;$) { #{{{ } } } - - open (OUT, ">$destdir/$file") || error("failed to write $destdir/$file: $!"); - if (! $binary) { - binmode(OUT, ":utf8"); + + my $cleanup = sub { unlink($newfile) }; + open (my $out, '>', $newfile) || error("failed to write $newfile: $!", $cleanup); + binmode($out) if ($binary); + if ($writer) { + $writer->(\*$out, $cleanup); } else { - binmode(OUT); + print $out $content or error("failed writing to $newfile: $!", $cleanup); } - print OUT $content; - close OUT; + close $out || error("failed saving $newfile: $!", $cleanup); + rename($newfile, "$destdir/$file") || + error("failed renaming $newfile to $destdir/$file: $!", $cleanup); + + return 1; +} #}}} + +my %cleared; +sub will_render ($$;$) { #{{{ + my $page=shift; + my $dest=shift; + my $clear=shift; + + # Important security check. + if (-e "$config{destdir}/$dest" && ! $config{rebuild} && + ! grep { $_ eq $dest } (@{$renderedfiles{$page}}, @{$oldrenderedfiles{$page}})) { + error("$config{destdir}/$dest independently created, not overwriting with version from $page"); + } + + if (! $clear || $cleared{$page}) { + $renderedfiles{$page}=[$dest, grep { $_ ne $dest } @{$renderedfiles{$page}}]; + } + else { + foreach my $old (@{$renderedfiles{$page}}) { + delete $destsources{$old}; + } + $renderedfiles{$page}=[$dest]; + $cleared{$page}=1; + } + $destsources{$dest}=$page; + + return 1; } #}}} sub bestlink ($$) { #{{{ - # Given a page and the text of a link on the page, determine which - # existing page that link best points to. Prefers pages under a - # subdirectory with the same name as the source page, failing that - # goes down the directory tree to the base looking for matching - # pages. my $page=shift; - my $link=lc(shift); + my $link=shift; my $cwd=$page; + if ($link=~s/^\/+//) { + # absolute links + $cwd=""; + } + do { my $l=$cwd; $l.="/" if length $l; $l.=$link; if (exists $links{$l}) { - #debug("for $page, \"$link\", use $l"); return $l; } + elsif (exists $pagecase{lc $l}) { + return $pagecase{lc $l}; + } } while $cwd=~s!/?[^/]+$!!; + if (length $config{userdir}) { + my $l = "$config{userdir}/".lc($link); + if (exists $links{$l}) { + return $l; + } + elsif (exists $pagecase{lc $l}) { + return $pagecase{lc $l}; + } + } + #print STDERR "warning: page $page, broken link: $link\n"; return ""; } #}}} @@ -239,117 +438,401 @@ sub bestlink ($$) { #{{{ sub isinlinableimage ($) { #{{{ my $file=shift; - $file=~/\.(png|gif|jpg|jpeg)$/i; + return $file =~ /\.(png|gif|jpg|jpeg)$/i; } #}}} -sub pagetitle ($) { #{{{ +sub pagetitle ($;$) { #{{{ my $page=shift; - $page=~s/__(\d+)__/&#$1;/g; - $page=~y/_/ /; + my $unescaped=shift; + + if ($unescaped) { + $page=~s/(__(\d+)__|_)/$1 eq '_' ? ' ' : chr($2)/eg; + } + else { + $page=~s/(__(\d+)__|_)/$1 eq '_' ? ' ' : "&#$2;"/eg; + } + return $page; } #}}} sub titlepage ($) { #{{{ my $title=shift; - $title=~y/ /_/; - $title=~s/([^-[:alnum:]_:+\/.])/"__".ord($1)."__"/eg; + $title=~s/([^-[:alnum:]:+\/.])/$1 eq ' ' ? '_' : "__".ord($1)."__"/eg; return $title; } #}}} +sub linkpage ($) { #{{{ + my $link=shift; + $link=~s/([^-[:alnum:]:+\/._])/$1 eq ' ' ? '_' : "__".ord($1)."__"/eg; + return $link; +} #}}} + sub cgiurl (@) { #{{{ my %params=@_; - return $config{cgiurl}."?".join("&", map "$_=$params{$_}", keys %params); + return $config{cgiurl}."?". + join("&", map $_."=".uri_escape_utf8($params{$_}), keys %params); } #}}} -sub styleurl (;$) { #{{{ +sub baseurl (;$) { #{{{ my $page=shift; - return "$config{url}/style.css" if ! defined $page; + return "$config{url}/" if ! defined $page; + $page=htmlpage($page); $page=~s/[^\/]+$//; $page=~s/[^\/]+\//..\//g; - return $page."style.css"; + return $page; +} #}}} + +sub abs2rel ($$) { #{{{ + # Work around very innefficient behavior in File::Spec if abs2rel + # is passed two relative paths. It's much faster if paths are + # absolute! (Debian bug #376658; fixed in debian unstable now) + my $path="/".shift; + my $base="/".shift; + + require File::Spec; + my $ret=File::Spec->abs2rel($path, $base); + $ret=~s/^// if defined $ret; + return $ret; +} #}}} + +sub displaytime ($) { #{{{ + my $time=shift; + + # strftime doesn't know about encodings, so make sure + # its output is properly treated as utf8 + return decode_utf8(POSIX::strftime( + $config{timeformat}, localtime($time))); +} #}}} + +sub beautify_url ($) { #{{{ + my $url=shift; + + $url =~ s!/index.$config{htmlext}$!/!; + $url =~ s!^$!./!; # Browsers don't like empty links... + + return $url; +} #}}} + +sub urlto ($$) { #{{{ + my $to=shift; + my $from=shift; + + if (! length $to) { + return beautify_url(baseurl($from)); + } + + if (! $destsources{$to}) { + $to=htmlpage($to); + } + + my $link = abs2rel($to, dirname(htmlpage($from))); + + return beautify_url($link); } #}}} -sub htmllink ($$$;$$$) { #{{{ +sub htmllink ($$$;@) { #{{{ my $lpage=shift; # the page doing the linking my $page=shift; # the page that will contain the link (different for inline) my $link=shift; - my $noimageinline=shift; # don't turn links into inline html images - my $forcesubpage=shift; # force a link to a subpage - my $linktext=shift; # set to force the link text to something + my %opts=@_; my $bestlink; - if (! $forcesubpage) { + if (! $opts{forcesubpage}) { $bestlink=bestlink($lpage, $link); } else { $bestlink="$lpage/".lc($link); } - $linktext=pagetitle(basename($link)) unless defined $linktext; + my $linktext; + if (defined $opts{linktext}) { + $linktext=$opts{linktext}; + } + else { + $linktext=pagetitle(basename($link)); + } - return $linktext if length $bestlink && $page eq $bestlink; + return "$linktext" + if length $bestlink && $page eq $bestlink; - # TODO BUG: %renderedfiles may not have it, if the linked to page - # was also added and isn't yet rendered! Note that this bug is - # masked by the bug that makes all new files be rendered twice. - if (! grep { $_ eq $bestlink } values %renderedfiles) { + if (! $destsources{$bestlink}) { $bestlink=htmlpage($bestlink); - } - if (! grep { $_ eq $bestlink } values %renderedfiles) { - return " "create", page => $link, from => $page). - "\">?$linktext" + + if (! $destsources{$bestlink}) { + return $linktext unless length $config{cgiurl}; + return " "create", + page => pagetitle(lc($link), 1), + from => $lpage + ). + "\">?$linktext" + } } - $bestlink=File::Spec->abs2rel($bestlink, dirname($page)); + $bestlink=abs2rel($bestlink, dirname(htmlpage($page))); + $bestlink=beautify_url($bestlink); - if (! $noimageinline && isinlinableimage($bestlink)) { + if (! $opts{noimageinline} && isinlinableimage($bestlink)) { return "\"$linktext\""; } - return "$linktext"; + + if (defined $opts{anchor}) { + $bestlink.="#".$opts{anchor}; + } + + my @attrs; + if (defined $opts{rel}) { + push @attrs, ' rel="'.$opts{rel}.'"'; + } + + return "$linktext"; +} #}}} + +sub htmlize ($$$) { #{{{ + my $page=shift; + my $type=shift; + my $content=shift; + + if (exists $hooks{htmlize}{$type}) { + $content=$hooks{htmlize}{$type}{call}->( + page => $page, + content => $content, + ); + } + else { + error("htmlization of $type not supported"); + } + + run_hooks(sanitize => sub { + $content=shift->( + page => $page, + content => $content, + ); + }); + + return $content; +} #}}} + +sub linkify ($$$) { #{{{ + my $lpage=shift; # the page containing the links + my $page=shift; # the page the link will end up on (different for inline) + my $content=shift; + + $content =~ s{(\\?)$config{wiki_link_regexp}}{ + defined $2 + ? ( $1 + ? "[[$2|$3".($4 ? "#$4" : "")."]]" + : htmllink($lpage, $page, linkpage($3), + anchor => $4, linktext => pagetitle($2))) + : ( $1 + ? "[[$3".($4 ? "#$4" : "")."]]" + : htmllink($lpage, $page, linkpage($3), + anchor => $4)) + }eg; + + return $content; +} #}}} + +my %preprocessing; +our $preprocess_preview=0; +sub preprocess ($$$;$$) { #{{{ + my $page=shift; # the page the data comes from + my $destpage=shift; # the page the data will appear in (different for inline) + my $content=shift; + my $scan=shift; + my $preview=shift; + + # Using local because it needs to be set within any nested calls + # of this function. + local $preprocess_preview=$preview if defined $preview; + + my $handle=sub { + my $escape=shift; + my $command=shift; + my $params=shift; + if (length $escape) { + return "[[$command $params]]"; + } + elsif (exists $hooks{preprocess}{$command}) { + return "" if $scan && ! $hooks{preprocess}{$command}{scan}; + # Note: preserve order of params, some plugins may + # consider it significant. + my @params; + while ($params =~ m{ + (?:(\w+)=)? # 1: named parameter key? + (?: + """(.*?)""" # 2: triple-quoted value + | + "([^"]+)" # 3: single-quoted value + | + (\S+) # 4: unquoted value + ) + (?:\s+|$) # delimiter to next param + }sgx) { + my $key=$1; + my $val; + if (defined $2) { + $val=$2; + $val=~s/\r\n/\n/mg; + $val=~s/^\n+//g; + $val=~s/\n+$//g; + } + elsif (defined $3) { + $val=$3; + } + elsif (defined $4) { + $val=$4; + } + + if (defined $key) { + push @params, $key, $val; + } + else { + push @params, $val, ''; + } + } + if ($preprocessing{$page}++ > 3) { + # Avoid loops of preprocessed pages preprocessing + # other pages that preprocess them, etc. + #translators: The first parameter is a + #translators: preprocessor directive name, + #translators: the second a page name, the + #translators: third a number. + return "[[".sprintf(gettext("%s preprocessing loop detected on %s at depth %i"), + $command, $page, $preprocessing{$page}). + "]]"; + } + my $ret=$hooks{preprocess}{$command}{call}->( + @params, + page => $page, + destpage => $destpage, + preview => $preprocess_preview, + ); + $preprocessing{$page}--; + return $ret; + } + else { + return "[[$command $params]]"; + } + }; + + $content =~ s{ + (\\?) # 1: escape? + \[\[ # directive open + (\w+) # 2: command + \s+ + ( # 3: the parameters.. + (?: + (?:\w+=)? # named parameter key? + (?: + """.*?""" # triple-quoted value + | + "[^"]+" # single-quoted value + | + [^\s\]]+ # unquoted value + ) + \s* # whitespace or end + # of directive + ) + *) # 0 or more parameters + \]\] # directive closed + }{$handle->($1, $2, $3)}sexg; + return $content; +} #}}} + +sub filter ($$$) { #{{{ + my $page=shift; + my $destpage=shift; + my $content=shift; + + run_hooks(filter => sub { + $content=shift->(page => $page, destpage => $destpage, + content => $content); + }); + + return $content; } #}}} sub indexlink () { #{{{ return "$config{wikiname}"; } #}}} -sub lockwiki () { #{{{ +my $wikilock; + +sub lockwiki (;$) { #{{{ + my $wait=@_ ? shift : 1; # Take an exclusive lock on the wiki to prevent multiple concurrent # run issues. The lock will be dropped on program exit. if (! -d $config{wikistatedir}) { mkdir($config{wikistatedir}); } - open(WIKILOCK, ">$config{wikistatedir}/lockfile") || + open($wikilock, '>', "$config{wikistatedir}/lockfile") || error ("cannot write to $config{wikistatedir}/lockfile: $!"); - if (! flock(WIKILOCK, 2 | 4)) { - debug("wiki seems to be locked, waiting for lock"); - my $wait=600; # arbitrary, but don't hang forever to - # prevent process pileup - for (1..600) { - return if flock(WIKILOCK, 2 | 4); - sleep 1; + if (! flock($wikilock, 2 | 4)) { # LOCK_EX | LOCK_NB + if ($wait) { + debug("wiki seems to be locked, waiting for lock"); + my $wait=600; # arbitrary, but don't hang forever to + # prevent process pileup + for (1..$wait) { + return if flock($wikilock, 2 | 4); + sleep 1; + } + error("wiki is locked; waited $wait seconds without lock being freed (possible stuck process or stale lock?)"); + } + else { + return 0; } - error("wiki is locked; waited $wait seconds without lock being freed (possible stuck process or stale lock?)"); } + return 1; } #}}} sub unlockwiki () { #{{{ - close WIKILOCK; + return close($wikilock) if $wikilock; + return; +} #}}} + +my $commitlock; + +sub commit_hook_enabled () { #{{{ + open($commitlock, '+>', "$config{wikistatedir}/commitlock") || + error("cannot write to $config{wikistatedir}/commitlock: $!"); + if (! flock($commitlock, 1 | 4)) { # LOCK_SH | LOCK_NB to test + close($commitlock) || error("failed closing commitlock: $!"); + return 0; + } + close($commitlock) || error("failed closing commitlock: $!"); + return 1; +} #}}} + +sub disable_commit_hook () { #{{{ + open($commitlock, '>', "$config{wikistatedir}/commitlock") || + error("cannot write to $config{wikistatedir}/commitlock: $!"); + if (! flock($commitlock, 2)) { # LOCK_EX + error("failed to get commit lock"); + } + return 1; +} #}}} + +sub enable_commit_hook () { #{{{ + return close($commitlock) if $commitlock; + return; } #}}} sub loadindex () { #{{{ - open (IN, "$config{wikistatedir}/index") || return; - while () { + open (my $in, "<", "$config{wikistatedir}/index") || return; + while (<$in>) { $_=possibly_foolish_untaint($_); chomp; my %items; $items{link}=[]; + $items{dest}=[]; foreach my $i (split(/ /, $_)) { my ($item, $val)=split(/=/, $i, 2); - push @{$items{$item}}, $val; + push @{$items{$item}}, decode_entities($val); } next unless exists $items{src}; # skip bad lines for now @@ -357,108 +840,471 @@ sub loadindex () { #{{{ my $page=pagename($items{src}[0]); if (! $config{rebuild}) { $pagesources{$page}=$items{src}[0]; - $oldpagemtime{$page}=$items{mtime}[0]; + $pagemtime{$page}=$items{mtime}[0]; $oldlinks{$page}=[@{$items{link}}]; $links{$page}=[@{$items{link}}]; - $depends{$page}=join(" ", @{$items{depends}}) - if exists $items{depends}; - $renderedfiles{$page}=$items{dest}[0]; + $depends{$page}=$items{depends}[0] if exists $items{depends}; + $destsources{$_}=$page foreach @{$items{dest}}; + $renderedfiles{$page}=[@{$items{dest}}]; + $pagecase{lc $page}=$page; } + $oldrenderedfiles{$page}=[@{$items{dest}}]; $pagectime{$page}=$items{ctime}[0]; } - close IN; + return close($in); } #}}} sub saveindex () { #{{{ + run_hooks(savestate => sub { shift->() }); + if (! -d $config{wikistatedir}) { mkdir($config{wikistatedir}); } - open (OUT, ">$config{wikistatedir}/index") || - error("cannot write to $config{wikistatedir}/index: $!"); - foreach my $page (keys %oldpagemtime) { - next unless $oldpagemtime{$page}; - my $line="mtime=$oldpagemtime{$page} ". + my $newfile="$config{wikistatedir}/index.new"; + my $cleanup = sub { unlink($newfile) }; + open (my $out, '>', $newfile) || error("cannot write to $newfile: $!", $cleanup); + foreach my $page (keys %pagemtime) { + next unless $pagemtime{$page}; + my $line="mtime=$pagemtime{$page} ". "ctime=$pagectime{$page} ". - "src=$pagesources{$page} ". - "dest=$renderedfiles{$page}"; - $line.=" link=$_" foreach @{$links{$page}}; + "src=$pagesources{$page}"; + $line.=" dest=$_" foreach @{$renderedfiles{$page}}; + my %count; + $line.=" link=$_" foreach grep { ++$count{$_} == 1 } @{$links{$page}}; if (exists $depends{$page}) { - $line.=" depends=$_" foreach split " ", $depends{$page}; + $line.=" depends=".encode_entities($depends{$page}, " \t\n"); } - print OUT $line."\n"; + print $out $line."\n" || error("failed writing to $newfile: $!", $cleanup); } - close OUT; + close $out || error("failed saving to $newfile: $!", $cleanup); + rename($newfile, "$config{wikistatedir}/index") || + error("failed renaming $newfile to $config{wikistatedir}/index", $cleanup); + + return 1; +} #}}} + +sub template_file ($) { #{{{ + my $template=shift; + + foreach my $dir ($config{templatedir}, "$installdir/share/ikiwiki/templates") { + return "$dir/$template" if -e "$dir/$template"; + } + return; +} #}}} + +sub template_params (@) { #{{{ + my $filename=template_file(shift); + + if (! defined $filename) { + return if wantarray; + return ""; + } + + my @ret=( + filter => sub { + my $text_ref = shift; + ${$text_ref} = Encode::decode_utf8(${$text_ref}); + }, + filename => $filename, + loop_context_vars => 1, + die_on_bad_params => 0, + @_ + ); + return wantarray ? @ret : {@ret}; } #}}} -sub misctemplate ($$) { #{{{ +sub template ($;@) { #{{{ + require HTML::Template; + return HTML::Template->new(template_params(@_)); +} #}}} + +sub misctemplate ($$;@) { #{{{ my $title=shift; my $pagebody=shift; - my $template=HTML::Template->new( - filename => "$config{templatedir}/misc.tmpl" - ); + my $template=template("misc.tmpl"); $template->param( title => $title, indexlink => indexlink(), wikiname => $config{wikiname}, pagebody => $pagebody, - styleurl => styleurl(), - baseurl => "$config{url}/", + baseurl => baseurl(), + @_, ); + run_hooks(pagetemplate => sub { + shift->(page => "", destpage => "", template => $template); + }); return $template->output; }#}}} -sub glob_match ($$) { #{{{ - my $page=shift; - my $glob=shift; +sub hook (@) { # {{{ + my %param=@_; + + if (! exists $param{type} || ! ref $param{call} || ! exists $param{id}) { + error 'hook requires type, call, and id parameters'; + } - if ($glob =~ /^link\((.+)\)$/) { - my $rev = $links{$page} or return undef; - foreach my $p (@$rev) { - return 1 if lc $p eq $1; + return if $param{no_override} && exists $hooks{$param{type}}{$param{id}}; + + $hooks{$param{type}}{$param{id}}=\%param; + return 1; +} # }}} + +sub run_hooks ($$) { # {{{ + # Calls the given sub for each hook of the given type, + # passing it the hook function to call. + my $type=shift; + my $sub=shift; + + if (exists $hooks{$type}) { + my @deferred; + foreach my $id (keys %{$hooks{$type}}) { + if ($hooks{$type}{$id}{last}) { + push @deferred, $id; + next; + } + $sub->($hooks{$type}{$id}{call}); } - return 0; - } elsif ($glob =~ /^backlink\((.+)\)$/) { - my $rev = $links{$1} or return undef; - foreach my $p (@$rev) { - return 1 if lc $p eq $page; + foreach my $id (@deferred) { + $sub->($hooks{$type}{$id}{call}); } - return 0; - } else { - # turn glob into safe regexp - $glob=quotemeta($glob); - $glob=~s/\\\*/.*/g; - $glob=~s/\\\?/./g; - $glob=~s!\\/!/!g; - - return $page=~/^$glob$/i; } + + return 1; } #}}} -sub globlist_match ($$) { #{{{ - my $page=shift; - my @globlist=split(" ", shift); +sub globlist_to_pagespec ($) { #{{{ + my @globlist=split(' ', shift); - # check any negated globs first + my (@spec, @skip); foreach my $glob (@globlist) { - return 0 if $glob=~/^!(.*)/ && glob_match($page, $1); + if ($glob=~/^!(.*)/) { + push @skip, $glob; + } + else { + push @spec, $glob; + } } - foreach my $glob (@globlist) { - return 1 if glob_match($page, $glob); + my $spec=join(' or ', @spec); + if (@skip) { + my $skip=join(' and ', @skip); + if (length $spec) { + $spec="$skip and ($spec)"; + } + else { + $spec=$skip; + } } - - return 0; + return $spec; } #}}} -sub hook (@) { # {{{ - my %param=@_; +sub is_globlist ($) { #{{{ + my $s=shift; + return ( $s =~ /[^\s]+\s+([^\s]+)/ && $1 ne "and" && $1 ne "or" ); +} #}}} + +sub safequote ($) { #{{{ + my $s=shift; + $s=~s/[{}]//g; + return "q{$s}"; +} #}}} + +sub add_depends ($$) { #{{{ + my $page=shift; + my $pagespec=shift; - if (! exists $param{type} || ! ref $param{call} || ! exists $param{id}) { - error "hook requires type, call, and id parameters"; + if (! exists $depends{$page}) { + $depends{$page}=$pagespec; } - - $hooks{$param{type}}{$param{id}}=\%param; + else { + $depends{$page}=pagespec_merge($depends{$page}, $pagespec); + } + + return 1; } # }}} +sub file_pruned ($$) { #{{{ + require File::Spec; + my $file=File::Spec->canonpath(shift); + my $base=File::Spec->canonpath(shift); + $file =~ s#^\Q$base\E/*##; + + my $regexp='('.join('|', @{$config{wiki_file_prune_regexps}}).')'; + return $file =~ m/$regexp/; +} #}}} + +sub gettext { #{{{ + # Only use gettext in the rare cases it's needed. + if ((exists $ENV{LANG} && length $ENV{LANG}) || + (exists $ENV{LC_ALL} && length $ENV{LC_ALL}) || + (exists $ENV{LC_MESSAGES} && length $ENV{LC_MESSAGES})) { + if (! $gettext_obj) { + $gettext_obj=eval q{ + use Locale::gettext q{textdomain}; + Locale::gettext->domain('ikiwiki') + }; + if ($@) { + print STDERR "$@"; + $gettext_obj=undef; + return shift; + } + } + return $gettext_obj->get(shift); + } + else { + return shift; + } +} #}}} + +sub pagespec_merge ($$) { #{{{ + my $a=shift; + my $b=shift; + + return $a if $a eq $b; + + # Support for old-style GlobLists. + if (is_globlist($a)) { + $a=globlist_to_pagespec($a); + } + if (is_globlist($b)) { + $b=globlist_to_pagespec($b); + } + + return "($a) or ($b)"; +} #}}} + +sub pagespec_translate ($) { #{{{ + # This assumes that $page is in scope in the function + # that evalulates the translated pagespec code. + my $spec=shift; + + # Support for old-style GlobLists. + if (is_globlist($spec)) { + $spec=globlist_to_pagespec($spec); + } + + # Convert spec to perl code. + my $code=""; + while ($spec=~m{ + \s* # ignore whitespace + ( # 1: match a single word + \! # ! + | + \( # ( + | + \) # ) + | + \w+\([^\)]*\) # command(params) + | + [^\s()]+ # any other text + ) + \s* # ignore whitespace + }igx) { + my $word=$1; + if (lc $word eq 'and') { + $code.=' &&'; + } + elsif (lc $word eq 'or') { + $code.=' ||'; + } + elsif ($word eq "(" || $word eq ")" || $word eq "!") { + $code.=' '.$word; + } + elsif ($word =~ /^(\w+)\((.*)\)$/) { + if (exists $IkiWiki::PageSpec::{"match_$1"}) { + $code.="IkiWiki::PageSpec::match_$1(\$page, ".safequote($2).", \@params)"; + } + else { + $code.=' 0'; + } + } + else { + $code.=" IkiWiki::PageSpec::match_glob(\$page, ".safequote($word).", \@params)"; + } + } + + return $code; +} #}}} + +sub pagespec_match ($$;@) { #{{{ + my $page=shift; + my $spec=shift; + my @params=@_; + + # Backwards compatability with old calling convention. + if (@params == 1) { + unshift @params, 'location'; + } + + my $ret=eval pagespec_translate($spec); + return IkiWiki::FailReason->new('syntax error') if $@; + return $ret; +} #}}} + +package IkiWiki::FailReason; + +use overload ( #{{{ + '""' => sub { ${$_[0]} }, + '0+' => sub { 0 }, + '!' => sub { bless $_[0], 'IkiWiki::SuccessReason'}, + fallback => 1, +); #}}} + +sub new { #{{{ + return bless \$_[1], $_[0]; +} #}}} + +package IkiWiki::SuccessReason; + +use overload ( #{{{ + '""' => sub { ${$_[0]} }, + '0+' => sub { 1 }, + '!' => sub { bless $_[0], 'IkiWiki::FailReason'}, + fallback => 1, +); #}}} + +sub new { #{{{ + return bless \$_[1], $_[0]; +}; #}}} + +package IkiWiki::PageSpec; + +sub match_glob ($$;@) { #{{{ + my $page=shift; + my $glob=shift; + my %params=@_; + + my $from=exists $params{location} ? $params{location} : ''; + + # relative matching + if ($glob =~ m!^\./!) { + $from=~s#/?[^/]+$##; + $glob=~s#^\./##; + $glob="$from/$glob" if length $from; + } + + # turn glob into safe regexp + $glob=quotemeta($glob); + $glob=~s/\\\*/.*/g; + $glob=~s/\\\?/./g; + + if ($page=~/^$glob$/i) { + return IkiWiki::SuccessReason->new("$glob matches $page"); + } + else { + return IkiWiki::FailReason->new("$glob does not match $page"); + } +} #}}} + +sub match_link ($$;@) { #{{{ + my $page=shift; + my $link=lc(shift); + my %params=@_; + + my $from=exists $params{location} ? $params{location} : ''; + + # relative matching + if ($link =~ m!^\.! && defined $from) { + $from=~s#/?[^/]+$##; + $link=~s#^\./##; + $link="$from/$link" if length $from; + } + + my $links = $IkiWiki::links{$page}; + return IkiWiki::FailReason->new("$page has no links") unless $links && @{$links}; + my $bestlink = IkiWiki::bestlink($from, $link); + foreach my $p (@{$links}) { + if (length $bestlink) { + return IkiWiki::SuccessReason->new("$page links to $link") + if $bestlink eq IkiWiki::bestlink($page, $p); + } + else { + return IkiWiki::SuccessReason->new("$page links to page matching $link") + if match_glob($p, $link, %params); + } + } + return IkiWiki::FailReason->new("$page does not link to $link"); +} #}}} + +sub match_backlink ($$;@) { #{{{ + return match_link($_[1], $_[0], @_); +} #}}} + +sub match_created_before ($$;@) { #{{{ + my $page=shift; + my $testpage=shift; + + if (exists $IkiWiki::pagectime{$testpage}) { + if ($IkiWiki::pagectime{$page} < $IkiWiki::pagectime{$testpage}) { + return IkiWiki::SuccessReason->new("$page created before $testpage"); + } + else { + return IkiWiki::FailReason->new("$page not created before $testpage"); + } + } + else { + return IkiWiki::FailReason->new("$testpage has no ctime"); + } +} #}}} + +sub match_created_after ($$;@) { #{{{ + my $page=shift; + my $testpage=shift; + + if (exists $IkiWiki::pagectime{$testpage}) { + if ($IkiWiki::pagectime{$page} > $IkiWiki::pagectime{$testpage}) { + return IkiWiki::SuccessReason->new("$page created after $testpage"); + } + else { + return IkiWiki::FailReason->new("$page not created after $testpage"); + } + } + else { + return IkiWiki::FailReason->new("$testpage has no ctime"); + } +} #}}} + +sub match_creation_day ($$;@) { #{{{ + if ((gmtime($IkiWiki::pagectime{shift()}))[3] == shift) { + return IkiWiki::SuccessReason->new('creation_day matched'); + } + else { + return IkiWiki::FailReason->new('creation_day did not match'); + } +} #}}} + +sub match_creation_month ($$;@) { #{{{ + if ((gmtime($IkiWiki::pagectime{shift()}))[4] + 1 == shift) { + return IkiWiki::SuccessReason->new('creation_month matched'); + } + else { + return IkiWiki::FailReason->new('creation_month did not match'); + } +} #}}} + +sub match_creation_year ($$;@) { #{{{ + if ((gmtime($IkiWiki::pagectime{shift()}))[5] + 1900 == shift) { + return IkiWiki::SuccessReason->new('creation_year matched'); + } + else { + return IkiWiki::FailReason->new('creation_year did not match'); + } +} #}}} + +sub match_user ($$;@) { #{{{ + shift; + my $user=shift; + my %params=@_; + + return IkiWiki::FailReason->new('cannot match user') + unless exists $params{user}; + if ($user eq $params{user}) { + return IkiWiki::SuccessReason->new("user is $user") + } + else { + return IkiWiki::FailReason->new("user is not $user"); + } +} #}}} + 1