commit changes for email subscriptions

[git.ikiwiki.info.git] / ikiwiki

diff --git a/ikiwiki b/ikiwiki
index 44e2197e67bee1889f81ad69463945f3847823ea..3cf2a7cb3a0f49fc27c2197a34391602524d17d0 100755 (executable)
--- a/ikiwiki
+++ b/ikiwiki
@@ -1,61 +1,140 @@
 #!/usr/bin/perl -T
 #!/usr/bin/perl -T

+$ENV{PATH}="/usr/local/bin:/usr/bin:/bin";

 
 

+package IkiWiki;

 use warnings;
 use strict;
 use warnings;
 use strict;

-use File::Find;
-use Memoize;

 use File::Spec;
 use HTML::Template;
 use File::Spec;
 use HTML::Template;

+use lib '.'; # For use without installation, removed by Makefile.
+
+use vars qw{%config %links %oldlinks %oldpagemtime %pagectime
+            %renderedfiles %pagesources %inlinepages};
+
+sub usage () { #{{{
+       die "usage: ikiwiki [options] source dest\n";
+} #}}}
+
+sub getconfig () { #{{{
+       if (! exists $ENV{WRAPPED_OPTIONS}) {
+               %config=(
+                       wiki_file_prune_regexp => qr{((^|/).svn/|\.\.|^\.|\/\.|\.html?$|\.rss$)},
+                       wiki_link_regexp => qr/\[\[(?:([^\s\]\|]+)\|)?([^\s\]]+)\]\]/,
+                       wiki_processor_regexp => qr/\[\[(\w+)\s+([^\]]+)\]\]/,
+                       wiki_file_regexp => qr/(^[-[:alnum:]_.:\/+]+$)/,
+                       verbose => 0,
+                       wikiname => "wiki",
+                       default_pageext => ".mdwn",
+                       cgi => 0,
+                       svn => 1,
+                       notify => 0,
+                       url => '',
+                       cgiurl => '',
+                       historyurl => '',
+                       diffurl => '',
+                       anonok => 0,
+                       rss => 0,
+                       rebuild => 0,
+                       refresh => 0,
+                       getctime => 0,
+                       hyperestraier => 0,
+                       wrapper => undef,
+                       wrappermode => undef,
+                       svnrepo => undef,
+                       svnpath => "trunk",
+                       srcdir => undef,
+                       destdir => undef,
+                       templatedir => "/usr/share/ikiwiki/templates",
+                       underlaydir => "/usr/share/ikiwiki/basewiki",
+                       setup => undef,
+                       adminuser => undef,
+                       adminemail => undef,
+               );

 
 

-BEGIN {
-       $blosxom::version="is a proper perl module too much to ask?";
-       do "/usr/bin/markdown";
-}
-
-$ENV{PATH}="/usr/local/bin:/usr/bin:/bin";
-my ($srcdir, $templatedir, $destdir, %links, %oldlinks, %oldpagemtime,
-    %renderedfiles, %pagesources);
-my $wiki_link_regexp=qr/\[\[([^\s]+)\]\]/;
-my $wiki_file_regexp=qr/(^[-A-Za-z0-9_.:\/+]+$)/;
-my $wiki_file_prune_regexp=qr!((^|/).svn/|\.\.|^\.|\/\.|\.html?$)!;
-my $verbose=0;
-my $wikiname="wiki";
-my $default_pagetype=".mdwn";
-my $cgi=0;
-my $url="";
-my $cgiurl="";
-my $historyurl="";
-my $svn=1;
-my $anonok=0;
-
-sub usage { #{{{
-       die "usage: ikiwiki [options] source templates dest\n";
-} #}}}
+               eval q{use Getopt::Long};
+               GetOptions(
+                       "setup|s=s" => \$config{setup},
+                       "wikiname=s" => \$config{wikiname},
+                       "verbose|v!" => \$config{verbose},
+                       "rebuild!" => \$config{rebuild},
+                       "refresh!" => \$config{refresh},
+                       "getctime" => \$config{getctime},
+                       "wrappermode=i" => \$config{wrappermode},
+                       "svn!" => \$config{svn},
+                       "anonok!" => \$config{anonok},
+                       "hyperestraier" => \$config{hyperestraier},
+                       "rss!" => \$config{rss},
+                       "cgi!" => \$config{cgi},
+                       "notify!" => \$config{notify},
+                       "url=s" => \$config{url},
+                       "cgiurl=s" => \$config{cgiurl},
+                       "historyurl=s" => \$config{historyurl},
+                       "diffurl=s" => \$config{diffurl},
+                       "svnrepo" => \$config{svnrepo},
+                       "svnpath" => \$config{svnpath},
+                       "adminemail=s" => \$config{adminemail},
+                       "exclude=s@" => sub {
+                               $config{wiki_file_prune_regexp}=qr/$config{wiki_file_prune_regexp}|$_[1]/;
+                       },
+                       "adminuser=s@" => sub {
+                               push @{$config{adminuser}}, $_[1]
+                       },
+                       "templatedir=s" => sub {
+                               $config{templatedir}=possibly_foolish_untaint($_[1])
+                       },
+                       "underlaydir=s" => sub {
+                               $config{underlaydir}=possibly_foolish_untaint($_[1])
+                       },
+                       "wrapper:s" => sub {
+                               $config{wrapper}=$_[1] ? $_[1] : "ikiwiki-wrap"
+                       },
+               ) || usage();

 
 

-sub error ($) { #{{{
-       if ($cgi) {
-               print "Content-type: text/html\n\n";
-               print misctemplate("Error", "<p>Error: @_</p>");
-               exit 1;
+               if (! $config{setup}) {
+                       usage() unless @ARGV == 2;
+                       $config{srcdir} = possibly_foolish_untaint(shift @ARGV);
+                       $config{destdir} = possibly_foolish_untaint(shift @ARGV);
+                       checkconfig();
+               }

        }
        else {
        }
        else {

-               die @_;
+               # wrapper passes a full config structure in the environment
+               # variable
+               eval possibly_foolish_untaint($ENV{WRAPPED_OPTIONS});
+               checkconfig();

        }
 } #}}}
 
        }
 } #}}}
 

-sub debug ($) { #{{{
-       if (! $cgi) {
-               print "@_\n" if $verbose;
+sub checkconfig () { #{{{
+       if ($config{cgi} && ! length $config{url}) {
+               error("Must specify url to wiki with --url when using --cgi\n");
+       }
+       if ($config{rss} && ! length $config{url}) {
+               error("Must specify url to wiki with --url when using --rss\n");
+       }
+       if ($config{hyperestraier} && ! length $config{url}) {
+               error("Must specify --url when using --hyperestraier\n");
+       }
+       
+       $config{wikistatedir}="$config{srcdir}/.ikiwiki"
+               unless exists $config{wikistatedir};
+       
+       if ($config{svn}) {
+               require IkiWiki::Rcs::SVN;
+               $config{rcs}=1;

        }
        else {
        }
        else {

-               print STDERR "@_\n" if $verbose;
+               require IkiWiki::Rcs::Stub;
+               $config{rcs}=0;

        }
 } #}}}
 
        }
 } #}}}
 

-sub mtime ($) { #{{{
-       my $page=shift;
-       
-       return (stat($page))[9];
+sub error ($) { #{{{
+       if ($config{cgi}) {
+               print "Content-type: text/html\n\n";
+               print misctemplate("Error", "<p>Error: @_</p>");
+       }
+       die @_;

 } #}}}
 
 sub possibly_foolish_untaint ($) { #{{{
 } #}}}
 
 sub possibly_foolish_untaint ($) { #{{{


@@ -64,6 +143,16 @@ sub possibly_foolish_untaint ($) { #{{{
        return $untainted;
 } #}}}
 
        return $untainted;
 } #}}}
 

+sub debug ($) { #{{{
+       return unless $config{verbose};
+       if (! $config{cgi}) {
+               print "@_\n";
+       }
+       else {
+               print STDERR "@_\n";
+       }
+} #}}}
+

 sub basename ($) { #{{{
        my $file=shift;
 
 sub basename ($) { #{{{
        my $file=shift;
 


@@ -104,21 +193,45 @@ sub htmlpage ($) { #{{{
        return $page.".html";
 } #}}}
 
        return $page.".html";
 } #}}}
 

-sub readfile ($) { #{{{
+sub srcfile ($) { #{{{
+       my $file=shift;
+
+       return "$config{srcdir}/$file" if -e "$config{srcdir}/$file";
+       return "$config{underlaydir}/$file" if -e "$config{underlaydir}/$file";
+       error("internal error: $file cannot be found");
+} #}}}
+
+sub readfile ($;$) { #{{{

        my $file=shift;
        my $file=shift;

+       my $binary=shift;

 
 

+       if (-l $file) {
+               error("cannot read a symlink ($file)");
+       }
+       

        local $/=undef;
        local $/=undef;

-       open (IN, "$file") || error("failed to read $file: $!");
+       open (IN, $file) || error("failed to read $file: $!");
+       binmode(IN) if $binary;

        my $ret=<IN>;
        close IN;
        return $ret;
 } #}}}
 
        my $ret=<IN>;
        close IN;
        return $ret;
 } #}}}
 

-sub writefile ($$) { #{{{
-       my $file=shift;
+sub writefile ($$$;$) { #{{{
+       my $file=shift; # can include subdirs
+       my $destdir=shift; # directory to put file in

        my $content=shift;
        my $content=shift;

+       my $binary=shift;
+       
+       my $test=$file;
+       while (length $test) {
+               if (-l "$destdir/$test") {
+                       error("cannot write to a symlink ($test)");
+               }
+               $test=dirname($test);
+       }

 
 

-       my $dir=dirname($file);
+       my $dir=dirname("$destdir/$file");

        if (! -d $dir) {
                my $d="";
                foreach my $s (split(m!/+!, $dir)) {
        if (! -d $dir) {
                my $d="";
                foreach my $s (split(m!/+!, $dir)) {


@@ -129,26 +242,18 @@ sub writefile ($$) { #{{{
                }
        }
        
                }
        }
        

-       open (OUT, ">$file") || error("failed to write $file: $!");
+       open (OUT, ">$destdir/$file") || error("failed to write $destdir/$file: $!");
+       binmode(OUT) if $binary;

        print OUT $content;
        close OUT;
 } #}}}
 
        print OUT $content;
        close OUT;
 } #}}}
 

-sub findlinks ($) { #{{{
-       my $content=shift;
-
-       my @links;
-       while ($content =~ /$wiki_link_regexp/g) {
-               push @links, lc($1);
-       }
-       return @links;
-} #}}}
-
-# 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.

 sub bestlink ($$) { #{{{
 sub bestlink ($$) { #{{{

+       # 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 $page=shift;
        my $link=lc(shift);
        


@@ -171,852 +276,232 @@ sub bestlink ($$) { #{{{
 sub isinlinableimage ($) { #{{{
        my $file=shift;
        
 sub isinlinableimage ($) { #{{{
        my $file=shift;
        

-       $file=~/\.(png|gif|jpg|jpeg)$/;
+       $file=~/\.(png|gif|jpg|jpeg)$/i;

 } #}}}
 
 } #}}}
 

-sub htmllink { #{{{
+sub pagetitle ($) { #{{{

        my $page=shift;
        my $page=shift;

-       my $link=shift;
-       my $noimagelink=shift;
-
-       my $bestlink=bestlink($page, $link);
+       $page=~s/__(\d+)__/&#$1;/g;
+       $page=~y/_/ /;
+       return $page;
+} #}}}

 
 

-       return $link if $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 mentioned below that makes all new files
-       # be rendered twice.
-       if (! grep { $_ eq $bestlink } values %renderedfiles) {
-               $bestlink=htmlpage($bestlink);
-       }
-       if (! grep { $_ eq $bestlink } values %renderedfiles) {
-               return "<a href=\"$cgiurl?do=create&page=$link&from=$page\">?</a>$link"
-       }
-       
-       $bestlink=File::Spec->abs2rel($bestlink, dirname($page));
-       
-       if (! $noimagelink && isinlinableimage($bestlink)) {
-               return "<img src=\"$bestlink\">";
-       }
-       return "<a href=\"$bestlink\">$link</a>";
+sub titlepage ($) { #{{{
+       my $title=shift;
+       $title=~y/ /_/;
+       $title=~s/([^-[:alnum:]_:+\/.])/"__".ord($1)."__"/eg;
+       return $title;

 } #}}}
 
 } #}}}
 

-sub linkify ($$) { #{{{
-       my $content=shift;
-       my $file=shift;
+sub cgiurl (@) { #{{{
+       my %params=@_;

 
 

-       $content =~ s/$wiki_link_regexp/htmllink(pagename($file), $1)/eg;
-       
-       return $content;
+       return $config{cgiurl}."?".join("&amp;", map "$_=$params{$_}", keys %params);

 } #}}}
 
 } #}}}
 

-sub htmlize ($$) { #{{{
-       my $type=shift;
-       my $content=shift;
+sub styleurl (;$) { #{{{
+       my $page=shift;
+
+       return "$config{url}/style.css" if ! defined $page;

        
        

-       if ($type eq '.mdwn') {
-               return Markdown::Markdown($content);
-       }
-       else {
-               error("htmlization of $type not supported");
-       }
+       $page=~s/[^\/]+$//;
+       $page=~s/[^\/]+\//..\//g;
+       return $page."style.css";

 } #}}}
 
 } #}}}
 

-sub backlinks ($) { #{{{
+sub htmllink ($$;$$$) { #{{{

        my $page=shift;
        my $page=shift;

+       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 @links;
-       foreach my $p (keys %links) {
-               next if bestlink($page, $p) eq $page;
-               if (grep { length $_ && bestlink($p, $_) eq $page } @{$links{$p}}) {
-                       my $href=File::Spec->abs2rel(htmlpage($p), dirname($page));
-                       
-                       # Trim common dir prefixes from both pages.
-                       my $p_trimmed=$p;
-                       my $page_trimmed=$page;
-                       my $dir;
-                       1 while (($dir)=$page_trimmed=~m!^([^/]+/)!) &&
-                               defined $dir &&
-                               $p_trimmed=~s/^\Q$dir\E// &&
-                               $page_trimmed=~s/^\Q$dir\E//;
-                                      
-                       push @links, { url => $href, page => $p_trimmed };
-               }
+       my $bestlink;
+       if (! $forcesubpage) {
+               $bestlink=bestlink($page, $link);

        }
        }

-
-       return sort { $a->{page} cmp $b->{page} } @links;
-} #}}}
-       
-sub parentlinks ($) { #{{{
-       my $page=shift;
-       
-       my @ret;
-       my $pagelink="";
-       my $path="";
-       my $skip=1;
-       foreach my $dir (reverse split("/", $page)) {
-               if (! $skip) {
-                       unshift @ret, { url => "$path$dir.html", page => $dir };
-               }
-               else {
-                       $skip=0;
-               }
-               $path.="../";
+       else {
+               $bestlink="$page/".lc($link);

        }
        }

-       unshift @ret, { url => $path , page => $wikiname };
-       return @ret;
-} #}}}
-
-sub indexlink () { #{{{
-       return "<a href=\"$url\">$wikiname</a>";
-} #}}}
-       
-sub finalize ($$) { #{{{
-       my $content=shift;
-       my $page=shift;

 
 

-       my $title=basename($page);
-       $title=~s/_/ /g;
+       $linktext=pagetitle(basename($link)) unless defined $linktext;

        
        

-       my $template=HTML::Template->new(blind_cache => 1,
-               filename => "$templatedir/page.tmpl");
+       return $linktext if length $bestlink && $page eq $bestlink;

        
        

-       if (length $cgiurl) {
-               $template->param(editurl => "$cgiurl?do=edit&page=$page");
-               if ($svn) {
-                       $template->param(recentchangesurl => "$cgiurl?do=recentchanges");
-               }
+       # 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 mentioned below that makes all new files
+       # be rendered twice.
+       if (! grep { $_ eq $bestlink } values %renderedfiles) {
+               $bestlink=htmlpage($bestlink);

        }
        }

-
-       if (length $historyurl) {
-               my $u=$historyurl;
-               $u=~s/\[\[\]\]/$pagesources{$page}/g;
-               $template->param(historyurl => $u);
+       if (! grep { $_ eq $bestlink } values %renderedfiles) {
+               return "<span><a href=\"".
+                       cgiurl(do => "create", page => $link, from =>$page).
+                       "\">?</a>$linktext</span>"

        }
        
        }
        

-       $template->param(
-               title => $title,
-               wikiname => $wikiname,
-               parentlinks => [parentlinks($page)],
-               content => $content,
-               backlinks => [backlinks($page)],
-       );
+       $bestlink=File::Spec->abs2rel($bestlink, dirname($page));

        
        

-       return $template->output;
+       if (! $noimageinline && isinlinableimage($bestlink)) {
+               return "<img src=\"$bestlink\" alt=\"$linktext\" />";
+       }
+       return "<a href=\"$bestlink\">$linktext</a>";

 } #}}}
 
 } #}}}
 

-# Important security check. Make sure to call this before saving any files
-# to the source directory.
-sub check_overwrite ($$) { #{{{
-       my $dest=shift;
-       my $src=shift;
-       
-       if (! exists $renderedfiles{$src} && -e $dest) {
-               error("$dest exists and was not rendered from $src before, not overwriting");
+sub indexlink () { #{{{
+       return "<a href=\"$config{url}\">$config{wikiname}</a>";
+} #}}}
+
+sub lockwiki () { #{{{
+       # 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") ||
+               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;
+               }
+               error("wiki is locked; waited $wait seconds without lock being freed (possible stuck process or stale lock?)");

        }
 } #}}}
        }
 } #}}}

-               
-sub render ($) { #{{{
-       my $file=shift;
-       
-       my $type=pagetype($file);
-       my $content=readfile("$srcdir/$file");
-       if ($type ne 'unknown') {
-               my $page=pagename($file);
-               
-               $links{$page}=[findlinks($content)];
-               
-               $content=linkify($content, $file);
-               $content=htmlize($type, $content);
-               $content=finalize($content, $page);
-               
-               check_overwrite("$destdir/".htmlpage($page), $page);
-               writefile("$destdir/".htmlpage($page), $content);
-               $oldpagemtime{$page}=time;
-               $renderedfiles{$page}=htmlpage($page);
-       }
-       else {
-               $links{$file}=[];
-               check_overwrite("$destdir/$file", $file);
-               writefile("$destdir/$file", $content);
-               $oldpagemtime{$file}=time;
-               $renderedfiles{$file}=$file;
-       }
+
+sub unlockwiki () { #{{{
+       close WIKILOCK;

 } #}}}
 
 sub loadindex () { #{{{
 } #}}}
 
 sub loadindex () { #{{{

-       open (IN, "$srcdir/.ikiwiki/index") || return;
+       open (IN, "$config{wikistatedir}/index") || return;

        while (<IN>) {
                $_=possibly_foolish_untaint($_);
                chomp;
        while (<IN>) {
                $_=possibly_foolish_untaint($_);
                chomp;

-               my ($mtime, $file, $rendered, @links)=split(' ', $_);
-               my $page=pagename($file);
-               $pagesources{$page}=$file;
-               $oldpagemtime{$page}=$mtime;
-               $oldlinks{$page}=[@links];
-               $links{$page}=[@links];
-               $renderedfiles{$page}=$rendered;
-       }
-       close IN;
-} #}}}
-
-sub saveindex () { #{{{
-       if (! -d "$srcdir/.ikiwiki") {
-               mkdir("$srcdir/.ikiwiki");
-       }
-       open (OUT, ">$srcdir/.ikiwiki/index") || error("cannot write to index: $!");
-       foreach my $page (keys %oldpagemtime) {
-               print OUT "$oldpagemtime{$page} $pagesources{$page} $renderedfiles{$page} ".
-                       join(" ", @{$links{$page}})."\n"
-                               if $oldpagemtime{$page};
-       }
-       close OUT;
-} #}}}
-
-sub rcs_update () { #{{{
-       if (-d "$srcdir/.svn") {
-               if (system("svn", "update", "--quiet", $srcdir) != 0) {
-                       warn("svn update failed\n");
-               }
-       }
-} #}}}
-
-sub rcs_commit ($) { #{{{
-       my $message=shift;
-
-       if (-d "$srcdir/.svn") {
-               if (system("svn", "commit", "--quiet", "-m",
-                          possibly_foolish_untaint($message), $srcdir) != 0) {
-                       warn("svn commit failed\n");
+               my %items;
+               $items{link}=[];
+               foreach my $i (split(/ /, $_)) {
+                       my ($item, $val)=split(/=/, $i, 2);
+                       push @{$items{$item}}, $val;

                }
                }

-       }
-} #}}}
-
-sub rcs_add ($) { #{{{
-       my $file=shift;

 
 

-       if (-d "$srcdir/.svn") {
-               my $parent=dirname($file);
-               while (! -d "$srcdir/$parent/.svn") {
-                       $file=$parent;
-                       $parent=dirname($file);
-               }
-               
-               if (system("svn", "add", "--quiet", "$srcdir/$file") != 0) {
-                       warn("svn add failed\n");
+               next unless exists $items{src}; # skip bad lines for now
+
+               my $page=pagename($items{src}[0]);
+               if (! $config{rebuild}) {
+                       $pagesources{$page}=$items{src}[0];
+                       $oldpagemtime{$page}=$items{mtime}[0];
+                       $oldlinks{$page}=[@{$items{link}}];
+                       $links{$page}=[@{$items{link}}];
+                       $inlinepages{$page}=join(" ", @{$items{inlinepage}})
+                               if exists $items{inlinepage};
+                       $renderedfiles{$page}=$items{dest}[0];

                }
                }

+               $pagectime{$page}=$items{ctime}[0];

        }
        }

+       close IN;

 } #}}}
 
 } #}}}
 

-sub rcs_recentchanges ($) { #{{{
-       my $num=shift;
-       my @ret;
-       
-       eval q{use Date::Parse};
-       eval q{use Time::Duration};
-       
-       if (-d "$srcdir/.svn") {
-               my $info=`LANG=C svn info $srcdir`;
-               my ($svn_url)=$info=~/^URL: (.*)$/m;
-
-               # FIXME: currently assumes that the wiki is somewhere
-               # under trunk in svn, doesn't support other layouts.
-               my ($svn_base)=$svn_url=~m!(/trunk(?:/.*)?)$!;
-               
-               my $div=qr/^--------------------+$/;
-               my $infoline=qr/^r(\d+)\s+\|\s+([^\s]+)\s+\|\s+(\d+-\d+-\d+\s+\d+:\d+:\d+\s+[-+]?\d+).*/;
-               my $state='start';
-               my ($rev, $user, $when, @pages, @message);
-               foreach (`LANG=C svn log -v '$svn_url'`) {
-                       chomp;
-                       if ($state eq 'start' && /$div/) {
-                               $state='header';
-                       }
-                       elsif ($state eq 'header' && /$infoline/) {
-                               $rev=$1;
-                               $user=$2;
-                               $when=concise(ago(time - str2time($3)));
-                       }
-                       elsif ($state eq 'header' && /^\s+[A-Z]\s+\Q$svn_base\E\/(.+)$/) {
-                               push @pages, { link => htmllink("", pagename($1), 1) }
-                                       if length $1;
-                       }
-                       elsif ($state eq 'header' && /^$/) {
-                               $state='body';
-                       }
-                       elsif ($state eq 'body' && /$div/) {
-                               push @ret, { rev => $rev, user => $user,
-                                       when => $when, message => [@message],
-                                       pages => [@pages] } if @pages;
-                               return @ret if @ret >= $num;
-                               
-                               $state='header';
-                               $rev=$user=$when=undef;
-                               @pages=@message=();
-                       }
-                       elsif ($state eq 'body') {
-                               push @message, {line => $_},
-                       }
-               }
-       }
-
-       return @ret;
-} #}}}
-
-sub prune ($) { #{{{
-       my $file=shift;
-
-       unlink($file);
-       my $dir=dirname($file);
-       while (rmdir($dir)) {
-               $dir=dirname($dir);
-       }
-} #}}}
-
-sub refresh () { #{{{
-       # Find existing pages.
-       my %exists;
-       my @files;
-       find({
-               no_chdir => 1,
-               wanted => sub {
-                       if (/$wiki_file_prune_regexp/) {
-                               $File::Find::prune=1;
-                       }
-                       elsif (! -d $_) {
-                               my ($f)=/$wiki_file_regexp/; # untaint
-                               if (! defined $f) {
-                                       warn("skipping bad filename $_\n");
-                               }
-                               else {
-                                       $f=~s/^\Q$srcdir\E\/?//;
-                                       push @files, $f;
-                                       $exists{pagename($f)}=1;
-                               }
-                       }
-               },
-       }, $srcdir);
-
-       my %rendered;
-
-       # check for added or removed pages
-       my @add;
-       foreach my $file (@files) {
-               my $page=pagename($file);
-               if (! $oldpagemtime{$page}) {
-                       debug("new page $page");
-                       push @add, $file;
-                       $links{$page}=[];
-                       $pagesources{$page}=$file;
-               }
+sub saveindex () { #{{{
+       if (! -d $config{wikistatedir}) {
+               mkdir($config{wikistatedir});

        }
        }

-       my @del;
+       open (OUT, ">$config{wikistatedir}/index") || 
+               error("cannot write to $config{wikistatedir}/index: $!");

        foreach my $page (keys %oldpagemtime) {
        foreach my $page (keys %oldpagemtime) {

-               if (! $exists{$page}) {
-                       debug("removing old page $page");
-                       push @del, $renderedfiles{$page};
-                       prune($destdir."/".$renderedfiles{$page});
-                       delete $renderedfiles{$page};
-                       $oldpagemtime{$page}=0;
-                       delete $pagesources{$page};
-               }
-       }
-       
-       # render any updated files
-       foreach my $file (@files) {
-               my $page=pagename($file);
-               
-               if (! exists $oldpagemtime{$page} ||
-                   mtime("$srcdir/$file") > $oldpagemtime{$page}) {
-                       debug("rendering changed file $file");
-                       render($file);
-                       $rendered{$file}=1;
-               }
-       }
-       
-       # if any files were added or removed, check to see if each page
-       # needs an update due to linking to them
-       # TODO: inefficient; pages may get rendered above and again here;
-       # problem is the bestlink may have changed and we won't know until
-       # now
-       if (@add || @del) {
-FILE:          foreach my $file (@files) {
-                       my $page=pagename($file);
-                       foreach my $f (@add, @del) {
-                               my $p=pagename($f);
-                               foreach my $link (@{$links{$page}}) {
-                                       if (bestlink($page, $link) eq $p) {
-                                               debug("rendering $file, which links to $p");
-                                               render($file);
-                                               $rendered{$file}=1;
-                                               next FILE;
-                                       }
-                               }
-                       }
-               }
-       }
-
-       # handle backlinks; if a page has added/removed links, update the
-       # pages it links to
-       # TODO: inefficient; pages may get rendered above and again here;
-       # problem is the backlinks could be wrong in the first pass render
-       # above
-       if (%rendered) {
-               my %linkchanged;
-               foreach my $file (keys %rendered, @del) {
-                       my $page=pagename($file);
-                       if (exists $links{$page}) {
-                               foreach my $link (@{$links{$page}}) {
-                                       $link=bestlink($page, $link);
-                                       if (length $link &&
-                                           ! exists $oldlinks{$page} ||
-                                           ! grep { $_ eq $link } @{$oldlinks{$page}}) {
-                                               $linkchanged{$link}=1;
-                                       }
-                               }
-                       }
-                       if (exists $oldlinks{$page}) {
-                               foreach my $link (@{$oldlinks{$page}}) {
-                                       $link=bestlink($page, $link);
-                                       if (length $link &&
-                                           ! exists $links{$page} ||
-                                           ! grep { $_ eq $link } @{$links{$page}}) {
-                                               $linkchanged{$link}=1;
-                                       }
-                               }
-                       }
+               next unless $oldpagemtime{$page};
+               my $line="mtime=$oldpagemtime{$page} ".
+                       "ctime=$pagectime{$page} ".
+                       "src=$pagesources{$page} ".
+                       "dest=$renderedfiles{$page}";
+               $line.=" link=$_" foreach @{$links{$page}};
+               if (exists $inlinepages{$page}) {
+                       $line.=" inlinepage=$_" foreach split " ", $inlinepages{$page};

                }
                }

-               foreach my $link (keys %linkchanged) {
-                       my $linkfile=$pagesources{$link};
-                       if (defined $linkfile) {
-                               debug("rendering $linkfile, to update its backlinks");
-                               render($linkfile);
-                       }
-               }
-       }
-} #}}}
-
-# Generates a C wrapper program for running ikiwiki in a specific way.
-# The wrapper may be safely made suid.
-sub gen_wrapper ($$) { #{{{
-       my ($svn, $rebuild)=@_;
-
-       eval q{use Cwd 'abs_path'};
-       $srcdir=abs_path($srcdir);
-       $destdir=abs_path($destdir);
-       my $this=abs_path($0);
-       if (! -x $this) {
-               error("$this doesn't seem to be executable");
-       }
-
-       my @params=($srcdir, $templatedir, $destdir, "--wikiname=$wikiname");
-       push @params, "--verbose" if $verbose;
-       push @params, "--rebuild" if $rebuild;
-       push @params, "--nosvn" if !$svn;
-       push @params, "--cgi" if $cgi;
-       push @params, "--url=$url" if $url;
-       push @params, "--cgiurl=$cgiurl" if $cgiurl;
-       push @params, "--historyurl=$historyurl" if $historyurl;
-       push @params, "--anonok" if $anonok;
-       my $params=join(" ", @params);
-       my $call='';
-       foreach my $p ($this, $this, @params) {
-               $call.=qq{"$p", };
-       }
-       $call.="NULL";
-       
-       my @envsave;
-       push @envsave, qw{REMOTE_ADDR QUERY_STRING REQUEST_METHOD REQUEST_URI
-                      CONTENT_TYPE CONTENT_LENGTH GATEWAY_INTERFACE
-                      HTTP_COOKIE} if $cgi;
-       my $envsave="";
-       foreach my $var (@envsave) {
-               $envsave.=<<"EOF"
-       if ((s=getenv("$var")))
-               asprintf(&newenviron[i++], "%s=%s", "$var", s);
-EOF
-       }
-       
-       open(OUT, ">ikiwiki-wrap.c") || error("failed to write ikiwiki-wrap.c: $!");;
-       print OUT <<"EOF";
-/* A wrapper for ikiwiki, can be safely made suid. */
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-
-extern char **environ;
-
-int main (int argc, char **argv) {
-       /* Sanitize environment. */
-       char *s;
-       char *newenviron[$#envsave+3];
-       int i=0;
-$envsave
-       newenviron[i++]="HOME=$ENV{HOME}";
-       newenviron[i]=NULL;
-       environ=newenviron;
-
-       if (argc == 2 && strcmp(argv[1], "--params") == 0) {
-               printf("$params\\n");
-               exit(0);
+               print OUT $line."\n";

        }
        }

-       
-       execl($call);
-       perror("failed to run $this");
-       exit(1);
-}
-EOF

        close OUT;
        close OUT;

-       if (system("gcc", "ikiwiki-wrap.c", "-o", "ikiwiki-wrap") != 0) {
-               error("failed to compile ikiwiki-wrap.c");
-       }
-       unlink("ikiwiki-wrap.c");
-       print "successfully generated ikiwiki-wrap\n";
-       exit 0;

 } #}}}
 } #}}}

-               
+

 sub misctemplate ($$) { #{{{
        my $title=shift;
        my $pagebody=shift;
        
        my $template=HTML::Template->new(
 sub misctemplate ($$) { #{{{
        my $title=shift;
        my $pagebody=shift;
        
        my $template=HTML::Template->new(

-               filename => "$templatedir/misc.tmpl"
+               filename => "$config{templatedir}/misc.tmpl"

        );
        $template->param(
                title => $title,
                indexlink => indexlink(),
        );
        $template->param(
                title => $title,
                indexlink => indexlink(),

-               wikiname => $wikiname,
+               wikiname => $config{wikiname},

                pagebody => $pagebody,
                pagebody => $pagebody,

+               styleurl => styleurl(),
+               baseurl => "$config{url}/",

        );
        return $template->output;
 }#}}}
 
        );
        return $template->output;
 }#}}}
 

-sub cgi_recentchanges ($) { #{{{
-       my $q=shift;
+sub glob_match ($$) { #{{{
+       my $page=shift;
+       my $glob=shift;
+
+       # turn glob into safe regexp
+       $glob=quotemeta($glob);
+       $glob=~s/\\\*/.*/g;
+       $glob=~s/\\\?/./g;
+       $glob=~s!\\/!/!g;

        
        

-       my $template=HTML::Template->new(
-               filename => "$templatedir/recentchanges.tmpl"
-       );
-       $template->param(
-               title => "RecentChanges",
-               indexlink => indexlink(),
-               wikiname => $wikiname,
-               changelog => [rcs_recentchanges(100)],
-       );
-       print $q->header, $template->output;
+       $page=~/^$glob$/i;

 } #}}}
 
 } #}}}
 

-sub cgi_signin ($$) { #{{{
-       my $q=shift;
-       my $session=shift;
-
-       eval q{use CGI::FormBuilder};
-       my $form = CGI::FormBuilder->new(
-               title => "$wikiname signin",
-               fields => [qw(do page name password confirm_password email)],
-               header => 1,
-               method => 'POST',
-               validate => {
-                       name => '/^\w+$/',
-                       confirm_password => {
-                               perl => q{eq $form->field("password")},
-                       },
-                       email => 'EMAIL',
-               },
-               required => 'NONE',
-               javascript => 0,
-               params => $q,
-               action => $q->request_uri,
-               header => 0,
-               template => (-e "$templatedir/signin.tmpl" ? "$templatedir/signin.tmpl" : "")
-       );
-       
-       $form->field(name => "name", required => 0);
-       $form->field(name => "do", type => "hidden");
-       $form->field(name => "page", type => "hidden");
-       $form->field(name => "password", type => "password", required => 0);
-       $form->field(name => "confirm_password", type => "password", required => 0);
-       $form->field(name => "email", required => 0);
-       if ($session->param("name")) {
-               $form->field(name => "name", value => $session->param("name"));
-       }
-       if ($q->param("do") ne "signin") {
-               $form->text("You need to log in before you can edit pages.");
-       }
-       
-       if ($form->submitted) {
-               # Set required fields based on how form was submitted.
-               my %required=(
-                       "Login" => [qw(name password)],
-                       "Register" => [qw(name password confirm_password email)],
-                       "Mail Password" => [qw(name)],
-               );
-               foreach my $opt (@{$required{$form->submitted}}) {
-                       $form->field(name => $opt, required => 1);
-               }
-       
-               # Validate password differently depending on how form was
-               # submitted.
-               if ($form->submitted eq 'Login') {
-                       $form->field(
-                               name => "password",
-                               validate => sub {
-                                       # TODO get real user password
-                                       shift eq "foo";
-                               },
-                       );
-               }
-               else {
-                       $form->field(name => "password", validate => 'VALUE');
-               }
-       }
-       else {
-               # Comments only shown first time.
-               $form->field(name => "name", comment => "use FirstnameLastName");
-               $form->field(name => "confirm_password", comment => "(only needed");
-               $form->field(name => "email",            comment => "for registration)");
-       }
+sub globlist_match ($$) { #{{{
+       my $page=shift;
+       my @globlist=split(" ", shift);

 
 

-       if ($form->submitted && $form->validate) {
-               if ($form->submitted eq 'Login') {
-                       $session->param("name", $form->field("name"));
-                       if (defined $form->field("do") && 
-                           $form->field("do") ne 'signin') {
-                               print $q->redirect(
-                                       "$cgiurl?do=".$form->field("do").
-                                       "&page=".$form->field("page"));
-                       }
-                       else {
-                               print $q->redirect($url);
-                       }
-               }
-               elsif ($form->submitted eq 'Register') {
-                       # TODO: save registration info
-                       $form->field(name => "confirm_password", type => "hidden");
-                       $form->field(name => "email", type => "hidden");
-                       $form->text("Registration successful. Now you can Login.");
-                       print $session->header();
-                       print misctemplate($form->title, $form->render(submit => ["Login"]));
-               }
-               elsif ($form->submitted eq 'Mail Password') {
-                       # TODO mail password
-                       $form->text("Your password has been emailed to you.");
-                       print $session->header();
-                       print misctemplate($form->title, $form->render(submit => ["Login", "Register", "Mail Password"]));
-               }
+       # check any negated globs first
+       foreach my $glob (@globlist) {
+               return 0 if $glob=~/^!(.*)/ && glob_match($page, $1);

        }
        }

-       else {
-               print $session->header();
-               print misctemplate($form->title, $form->render(submit => ["Login", "Register", "Mail Password"]));
-       }
-} #}}}

 
 

-sub cgi_editpage ($$) { #{{{
-       my $q=shift;
-       my $session=shift;
-
-       eval q{use CGI::FormBuilder};
-       my $form = CGI::FormBuilder->new(
-               fields => [qw(do from page content comments)],
-               header => 1,
-               method => 'POST',
-               validate => {},
-               required => [qw{}],
-               javascript => 0,
-               params => $q,
-               action => $q->request_uri,
-               table => 0,
-               template => "$templatedir/editpage.tmpl"
-       );
-       
-       my ($page)=$form->param('page')=~/$wiki_file_regexp/;
-       if (! defined $page || ! length $page || $page ne $q->param('page') ||
-           $page=~/$wiki_file_prune_regexp/ || $page=~/^\//) {
-               error("bad page name");
+       foreach my $glob (@globlist) {
+               return 1 if glob_match($page, $glob);

        }
        }

-       $page=lc($page);
-
-       $form->field(name => "do", type => 'hidden');
-       $form->field(name => "from", type => 'hidden');
-       $form->field(name => "page", value => "$page", force => 1);
-       $form->field(name => "comments", type => "text", size => 80);
-       $form->field(name => "content", type => "textarea", rows => 20,
-               cols => 80);

        
        

-       if (! $form->submitted || ! $form->validate) {
-               if ($form->field("do") eq "create") {
-                       if (exists $pagesources{lc($page)}) {
-                               # hmm, someone else made the page in the
-                               # meantime?
-                               print $q->redirect("$url/".htmlpage($page));
-                               return;
-                       }
-                       
-                       my @page_locs;
-                       my ($from)=$form->param('from')=~/$wiki_file_regexp/;
-                       if (! defined $from || ! length $from ||
-                           $from ne $form->param('from') ||
-                           $from=~/$wiki_file_prune_regexp/ || $from=~/^\//) {
-                               @page_locs=$page;
-                       }
-                       else {
-                               my $dir=$from."/";
-                               $dir=~s![^/]+/$!!;
-                               push @page_locs, $dir.$page;
-                               push @page_locs, "$from/$page";
-                               while (length $dir) {
-                                       $dir=~s![^/]+/$!!;
-                                       push @page_locs, $dir.$page;
-                               }
-                       }
-
-                       $form->tmpl_param("page_select", 1);
-                       $form->field(name => "page", type => 'select',
-                               options => \@page_locs);
-                       $form->title("creating $page");
-               }
-               elsif ($form->field("do") eq "edit") {
-                       my $content="";
-                       if (exists $pagesources{lc($page)}) {
-                               $content=readfile("$srcdir/$pagesources{lc($page)}");
-                               $content=~s/\n/\r\n/g;
-                       }
-                       $form->tmpl_param("page_select", 0);
-                       $form->field(name => "content", value => $content,
-                               force => 1);
-                       $form->field(name => "page", type => 'hidden');
-                       $form->title("editing $page");
-               }
-               
-               $form->tmpl_param("can_commit", $svn);
-               $form->tmpl_param("indexlink", indexlink());
-               print $form->render(submit => ["Save Page"]);
-       }
-       else {
-               # save page
-               my $file=$page.$default_pagetype;
-               my $newfile=1;
-               if (exists $pagesources{lc($page)}) {
-                       $file=$pagesources{lc($page)};
-                       $newfile=0;
-               }
-               
-               my $content=$form->field('content');
-               $content=~s/\r\n/\n/g;
-               $content=~s/\r/\n/g;
-               writefile("$srcdir/$file", $content);
-               
-               my $message="web commit ";
-               if ($session->param("name")) {
-                       $message.="by ".$session->param("name");
-               }
-               else {
-                       $message.="from $ENV{REMOTE_ADDR}";
-               }
-               if (length $form->field('comments')) {
-                       $message.=": ".$form->field('comments');
-               }
-               
-               if ($svn) {
-                       if ($newfile) {
-                               rcs_add($file);
-                       }
-                       # presumably the commit will trigger an update
-                       # of the wiki
-                       rcs_commit($message);
-               }
-               else {
-                       refresh();
-               }
-               
-               print $q->redirect("$url/".htmlpage($page));
-       }
+       return 0;

 } #}}}
 
 } #}}}
 

-sub cgi () { #{{{
-       eval q{use CGI};
-       eval q{use CGI::Session};
-       
-       my $q=CGI->new;
+sub main () { #{{{
+       getconfig();

        
        

-       my $do=$q->param('do');
-       if (! defined $do || ! length $do) {
-               error("\"do\" parameter missing");
+       if ($config{cgi}) {
+               lockwiki();
+               loadindex();
+               require IkiWiki::CGI;
+               cgi();

        }
        }

-       
-       # This does not need a session.
-       if ($do eq 'recentchanges') {
-               cgi_recentchanges($q);
-               return;
+       elsif ($config{setup}) {
+               require IkiWiki::Setup;
+               setup();

        }
        }

-       
-       CGI::Session->name("ikiwiki_session");
-
-       my $oldmask=umask(077);
-       my $session = CGI::Session->new("driver:db_file", $q,
-               { FileName => "$srcdir/.ikiwiki/sessions.db" });
-       umask($oldmask);
-       
-       # Everything below this point needs the user to be signed in.
-       if ((! $anonok && ! defined $session->param("name")) || $do eq 'signin') {
-               cgi_signin($q, $session);
-       
-               # Force session flush with safe umask.
-               my $oldmask=umask(077);
-               $session->flush;
-               umask($oldmask);
-               
-               return;
-       }
-       
-       if ($do eq 'create' || $do eq 'edit') {
-               cgi_editpage($q, $session);
+       elsif ($config{wrapper}) {
+               lockwiki();
+               require IkiWiki::Wrapper;
+               gen_wrapper();

        }
        else {
        }
        else {

-               error("unknown do parameter");
+               lockwiki();
+               loadindex();
+               require IkiWiki::Render;
+               rcs_update();
+               rcs_notify() if $config{notify};
+               rcs_getctime() if $config{getctime};
+               refresh();
+               saveindex();

        }
 } #}}}
 
        }
 } #}}}
 

-# main {{{
-my $rebuild=0;
-my $wrapper=0;
-if (grep /^-/, @ARGV) {
-       eval {use Getopt::Long};
-       GetOptions(
-               "wikiname=s" => \$wikiname,
-               "verbose|v" => \$verbose,
-               "rebuild" => \$rebuild,
-               "wrapper" => \$wrapper,
-               "svn!" => \$svn,
-               "anonok!" => \$anonok,
-               "cgi" => \$cgi,
-               "url=s" => \$url,
-               "cgiurl=s" => \$cgiurl,
-               "historyurl=s" => \$historyurl,
-       ) || usage();
-}
-usage() unless @ARGV == 3;
-($srcdir) = possibly_foolish_untaint(shift);
-($templatedir) = possibly_foolish_untaint(shift);
-($destdir) = possibly_foolish_untaint(shift);
-
-if ($cgi && ! length $url) {
-       error("Must specify url to wiki with --url when using --cgi");
-}
-
-gen_wrapper($svn, $rebuild) if $wrapper;
-memoize('pagename');
-memoize('bestlink');
-loadindex() unless $rebuild;
-if ($cgi) {
-       cgi();
-}
-else {
-       rcs_update() if $svn;
-       refresh();
-       saveindex();
-}
-#}}}
+main;