]> git.vanrenterghem.biz Git - git.ikiwiki.info.git/blobdiff - IkiWiki.pm
po plugin: slave pages link to the master's discussion page
[git.ikiwiki.info.git] / IkiWiki.pm
index 8af0d7889ae6daa457e16e8d819160aaf1d776b8..bab7b707aa6c485338fb3b863760e8019cd65e1c 100644 (file)
@@ -1,6 +1,7 @@
 #!/usr/bin/perl
 
 package IkiWiki;
+
 use warnings;
 use strict;
 use Encode;
@@ -11,15 +12,17 @@ use Storable;
 use open qw{:utf8 :std};
 
 use vars qw{%config %links %oldlinks %pagemtime %pagectime %pagecase
-           %pagestate %renderedfiles %oldrenderedfiles %pagesources
-           %destsources %depends %hooks %forcerebuild $gettext_obj};
+           %pagestate %wikistate %renderedfiles %oldrenderedfiles
+           %pagesources %destsources %depends %hooks %forcerebuild
+           $gettext_obj %loaded_plugins};
 
 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 %pagestate %renderedfiles
+                add_underlay pagetitle titlepage linkpage newpagefile
+                inject
+                 %config %links %pagestate %wikistate %renderedfiles
                  %pagesources %destsources);
 our $VERSION = 2.00; # plugin interface version, next is ikiwiki version
 our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE
@@ -31,63 +34,399 @@ memoize("abs2rel");
 memoize("pagespec_translate");
 memoize("file_pruned");
 
+sub getsetup () { #{{{
+       wikiname => {
+               type => "string",
+               default => "wiki",
+               description => "name of the wiki",
+               safe => 1,
+               rebuild => 1,
+       },
+       adminemail => {
+               type => "string",
+               default => undef,
+               example => 'me@example.com',
+               description => "contact email for wiki",
+               safe => 1,
+               rebuild => 0,
+       },
+       adminuser => {
+               type => "string",
+               default => [],
+               description => "users who are wiki admins",
+               safe => 1,
+               rebuild => 0,
+       },
+       banned_users => {
+               type => "string",
+               default => [],
+               description => "users who are banned from the wiki",
+               safe => 1,
+               rebuild => 0,
+       },
+       srcdir => {
+               type => "string",
+               default => undef,
+               example => "$ENV{HOME}/wiki",
+               description => "where the source of the wiki is located",
+               safe => 0, # path
+               rebuild => 1,
+       },
+       destdir => {
+               type => "string",
+               default => undef,
+               example => "/var/www/wiki",
+               description => "where to build the wiki",
+               safe => 0, # path
+               rebuild => 1,
+       },
+       url => {
+               type => "string",
+               default => '',
+               example => "http://example.com/wiki",
+               description => "base url to the wiki",
+               safe => 1,
+               rebuild => 1,
+       },
+       cgiurl => {
+               type => "string",
+               default => '',
+               example => "http://example.com/wiki/ikiwiki.cgi",
+               description => "url to the ikiwiki.cgi",
+               safe => 1,
+               rebuild => 1,
+       },
+       cgi_wrapper => {
+               type => "string",
+               default => '',
+               example => "/var/www/wiki/ikiwiki.cgi",
+               description => "cgi wrapper to generate",
+               safe => 0, # file
+               rebuild => 0,
+       },
+       cgi_wrappermode => {
+               type => "string",
+               default => '06755',
+               description => "mode for cgi_wrapper (can safely be made suid)",
+               safe => 0,
+               rebuild => 0,
+       },
+       rcs => {
+               type => "string",
+               default => '',
+               description => "rcs backend to use",
+               safe => 0, # don't allow overriding
+               rebuild => 0,
+       },
+       default_plugins => {
+               type => "internal",
+               default => [qw{mdwn link inline htmlscrubber passwordauth
+                               openid signinedit lockedit conditional
+                               recentchanges parentlinks editpage}],
+               description => "plugins to enable by default",
+               safe => 0,
+               rebuild => 1,
+       },
+       add_plugins => {
+               type => "string",
+               default => [],
+               description => "plugins to add to the default configuration",
+               safe => 1,
+               rebuild => 1,
+       },
+       disable_plugins => {
+               type => "string",
+               default => [],
+               description => "plugins to disable",
+               safe => 1,
+               rebuild => 1,
+       },
+       templatedir => {
+               type => "string",
+               default => "$installdir/share/ikiwiki/templates",
+               description => "location of template files",
+               advanced => 1,
+               safe => 0, # path
+               rebuild => 1,
+       },
+       underlaydir => {
+               type => "string",
+               default => "$installdir/share/ikiwiki/basewiki",
+               description => "base wiki source location",
+               advanced => 1,
+               safe => 0, # path
+               rebuild => 0,
+       },
+       wrappers => {
+               type => "internal",
+               default => [],
+               description => "wrappers to generate",
+               safe => 0,
+               rebuild => 0,
+       },
+       underlaydirs => {
+               type => "internal",
+               default => [],
+               description => "additional underlays to use",
+               safe => 0,
+               rebuild => 0,
+       },
+       verbose => {
+               type => "boolean",
+               example => 1,
+               description => "display verbose messages when building?",
+               safe => 1,
+               rebuild => 0,
+       },
+       syslog => {
+               type => "boolean",
+               example => 1,
+               description => "log to syslog?",
+               safe => 1,
+               rebuild => 0,
+       },
+       usedirs => {
+               type => "boolean",
+               default => 1,
+               description => "create output files named page/index.html?",
+               safe => 0, # changing requires manual transition
+               rebuild => 1,
+       },
+       prefix_directives => {
+               type => "boolean",
+               default => 0,
+               description => "use '!'-prefixed preprocessor directives?",
+               safe => 0, # changing requires manual transition
+               rebuild => 1,
+       },
+       indexpages => {
+               type => "boolean",
+               default => 0,
+               description => "use page/index.mdwn source files",
+               safe => 1,
+               rebuild => 1,
+       },
+       discussion => {
+               type => "boolean",
+               default => 1,
+               description => "enable Discussion pages?",
+               safe => 1,
+               rebuild => 1,
+       },
+       sslcookie => {
+               type => "boolean",
+               default => 0,
+               description => "only send cookies over SSL connections?",
+               advanced => 1,
+               safe => 1,
+               rebuild => 0,
+       },
+       default_pageext => {
+               type => "string",
+               default => "mdwn",
+               description => "extension to use for new pages",
+               safe => 0, # not sanitized
+               rebuild => 0,
+       },
+       htmlext => {
+               type => "string",
+               default => "html",
+               description => "extension to use for html files",
+               safe => 0, # not sanitized
+               rebuild => 1,
+       },
+       timeformat => {
+               type => "string",
+               default => '%c',
+               description => "strftime format string to display date",
+               advanced => 1,
+               safe => 1,
+               rebuild => 1,
+       },
+       locale => {
+               type => "string",
+               default => undef,
+               example => "en_US.UTF-8",
+               description => "UTF-8 locale to use",
+               advanced => 1,
+               safe => 0,
+               rebuild => 1,
+       },
+       userdir => {
+               type => "string",
+               default => "",
+               example => "users",
+               description => "put user pages below specified page",
+               safe => 1,
+               rebuild => 1,
+       },
+       numbacklinks => {
+               type => "integer",
+               default => 10,
+               description => "how many backlinks to show before hiding excess (0 to show all)",
+               safe => 1,
+               rebuild => 1,
+       },
+       hardlink => {
+               type => "boolean",
+               default => 0,
+               description => "attempt to hardlink source files? (optimisation for large files)",
+               advanced => 1,
+               safe => 0, # paranoia
+               rebuild => 0,
+       },
+       umask => {
+               type => "integer",
+               description => "",
+               example => "022",
+               description => "force ikiwiki to use a particular umask",
+               advanced => 1,
+               safe => 0, # paranoia
+               rebuild => 0,
+       },
+       libdir => {
+               type => "string",
+               default => "",
+               example => "$ENV{HOME}/.ikiwiki/",
+               description => "extra library and plugin directory",
+               advanced => 1,
+               safe => 0, # directory
+               rebuild => 0,
+       },
+       ENV => {
+               type => "string", 
+               default => {},
+               description => "environment variables",
+               safe => 0, # paranoia
+               rebuild => 0,
+       },
+       exclude => {
+               type => "string",
+               default => undef,
+               example => '\.wav$',
+               description => "regexp of source files to ignore",
+               advanced => 1,
+               safe => 0, # regexp
+               rebuild => 1,
+       },
+       wiki_file_prune_regexps => {
+               type => "internal",
+               default => [qr/(^|\/)\.\.(\/|$)/, qr/^\./, qr/\/\./,
+                       qr/\.x?html?$/, qr/\.ikiwiki-new$/,
+                       qr/(^|\/).svn\//, qr/.arch-ids\//, qr/{arch}\//,
+                       qr/(^|\/)_MTN\//,
+                       qr/\.dpkg-tmp$/],
+               description => "regexps of source files to ignore",
+               safe => 0,
+               rebuild => 1,
+       },
+       wiki_file_chars => {
+               type => "string",
+               description => "specifies the characters that are allowed in source filenames",
+               default => "-[:alnum:]+/.:_",
+               safe => 0,
+               rebuild => 1,
+       },
+       wiki_file_regexp => {
+               type => "internal",
+               description => "regexp of legal source files",
+               safe => 0,
+               rebuild => 1,
+       },
+       web_commit_regexp => {
+               type => "internal",
+               default => qr/^web commit (by (.*?(?=: |$))|from (\d+\.\d+\.\d+\.\d+)):?(.*)/,
+               description => "regexp to parse web commits from logs",
+               safe => 0,
+               rebuild => 0,
+       },
+       cgi => {
+               type => "internal",
+               default => 0,
+               description => "run as a cgi",
+               safe => 0,
+               rebuild => 0,
+       },
+       cgi_disable_uploads => {
+               type => "internal",
+               default => 1,
+               description => "whether CGI should accept file uploads",
+               safe => 0,
+               rebuild => 0,
+       },
+       post_commit => {
+               type => "internal",
+               default => 0,
+               description => "run as a post-commit hook",
+               safe => 0,
+               rebuild => 0,
+       },
+       rebuild => {
+               type => "internal",
+               default => 0,
+               description => "running in rebuild mode",
+               safe => 0,
+               rebuild => 0,
+       },
+       setup => {
+               type => "internal",
+               default => undef,
+               description => "running in setup mode",
+               safe => 0,
+               rebuild => 0,
+       },
+       refresh => {
+               type => "internal",
+               default => 0,
+               description => "running in refresh mode",
+               safe => 0,
+               rebuild => 0,
+       },
+       test_receive => {
+               type => "internal",
+               default => 0,
+               description => "running in receive test mode",
+               safe => 0,
+               rebuild => 0,
+       },
+       getctime => {
+               type => "internal",
+               default => 0,
+               description => "running in getctime mode",
+               safe => 0,
+               rebuild => 0,
+       },
+       w3mmode => {
+               type => "internal",
+               default => 0,
+               description => "running in w3mmode",
+               safe => 0,
+               rebuild => 0,
+       },
+       setupfile => {
+               type => "internal",
+               default => undef,
+               description => "path to setup file",
+               safe => 0,
+               rebuild => 0,
+       },
+       allow_symlinks_before_srcdir => {
+               type => "boolean",
+               default => 0,
+               description => "allow symlinks in the path leading to the srcdir (potentially insecure)",
+               safe => 0,
+               rebuild => 0,
+       },
+} #}}}
+
 sub defaultconfig () { #{{{
-       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_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",
-       htmlext => "html",
-       cgi => 0,
-       post_commit => 0,
-       rcs => '',
-       url => '',
-       cgiurl => '',
-       historyurl => '',
-       diffurl => '',
-       rss => 0,
-       atom => 0,
-       allowrss => 0,
-       allowatom => 0,
-       discussion => 1,
-       rebuild => 0,
-       refresh => 0,
-       getctime => 0,
-       w3mmode => 0,
-       wrapper => undef,
-       wrappermode => undef,
-       svnpath => "trunk",
-       gitorigin_branch => "origin",
-       gitmaster_branch => "master",
-       srcdir => undef,
-       destdir => undef,
-       pingurl => [],
-       templatedir => "$installdir/share/ikiwiki/templates",
-       underlaydir => "$installdir/share/ikiwiki/basewiki",
-       underlaydirs => [],
-       setup => undef,
-       adminuser => undef,
-       adminemail => undef,
-       plugin => [qw{mdwn link inline htmlscrubber passwordauth openid
-                       signinedit lockedit conditional recentchanges}],
-       libdir => undef,
-       timeformat => '%c',
-       locale => undef,
-       sslcookie => 0,
-       httpauth => 0,
-       userdir => "",
-       usedirs => 1,
-       numbacklinks => 10,
-       account_creation_password => "",
-       prefix_directives => 0,
-       hardlink => 0,
+       my %s=getsetup();
+       my @ret;
+       foreach my $key (keys %s) {
+               push @ret, $key, $s{$key}->{default};
+       }
+       use Data::Dumper;
+       return @ret;
 } #}}}
 
 sub checkconfig () { #{{{
@@ -102,6 +441,10 @@ sub checkconfig () { #{{{
                        $gettext_obj=undef;
                }
        }
+               
+       if (! defined $config{wiki_file_regexp}) {
+               $config{wiki_file_regexp}=qr/(^[$config{wiki_file_chars}]+$)/;
+       }
 
        if (ref $config{ENV} eq 'HASH') {
                foreach my $val (keys %{$config{ENV}}) {
@@ -125,18 +468,8 @@ sub checkconfig () { #{{{
        
        $config{wikistatedir}="$config{srcdir}/.ikiwiki"
                unless exists $config{wikistatedir};
-       
-       if ($config{rcs}) {
-               eval qq{use IkiWiki::Rcs::$config{rcs}};
-               if ($@) {
-                       error("Failed to load RCS module IkiWiki::Rcs::$config{rcs}: $@");
-               }
-       }
-       else {
-               require IkiWiki::Rcs::Stub;
-       }
 
-       if (exists $config{umask}) {
+       if (defined $config{umask}) {
                umask(possibly_foolish_untaint($config{umask}));
        }
 
@@ -145,12 +478,44 @@ sub checkconfig () { #{{{
        return 1;
 } #}}}
 
+sub listplugins () { #{{{
+       my %ret;
+
+       foreach my $dir (@INC, $config{libdir}) {
+               next unless defined $dir && length $dir;
+               foreach my $file (glob("$dir/IkiWiki/Plugin/*.pm")) {
+                       my ($plugin)=$file=~/.*\/(.*)\.pm$/;
+                       $ret{$plugin}=1;
+               }
+       }
+       foreach my $dir ($config{libdir}, "$installdir/lib/ikiwiki") {
+               next unless defined $dir && length $dir;
+               foreach my $file (glob("$dir/plugins/*")) {
+                       $ret{basename($file)}=1 if -x $file;
+               }
+       }
+
+       return keys %ret;
+} #}}}
+
 sub loadplugins () { #{{{
-       if (defined $config{libdir}) {
+       if (defined $config{libdir} && length $config{libdir}) {
                unshift @INC, possibly_foolish_untaint($config{libdir});
        }
 
-       loadplugin($_) foreach @{$config{plugin}};
+       foreach my $plugin (@{$config{default_plugins}}, @{$config{add_plugins}}) {
+               loadplugin($plugin);
+       }
+       
+       if ($config{rcs}) {
+               if (exists $IkiWiki::hooks{rcs}) {
+                       error(gettext("cannot use multiple rcs plugins"));
+               }
+               loadplugin($config{rcs});
+       }
+       if (! exists $IkiWiki::hooks{rcs}) {
+               loadplugin("norcs");
+       }
 
        run_hooks(getopt => sub { shift->() });
        if (grep /^-/, @ARGV) {
@@ -170,8 +535,13 @@ sub loadplugin ($) { #{{{
        foreach my $dir (defined $config{libdir} ? possibly_foolish_untaint($config{libdir}) : undef,
                         "$installdir/lib/ikiwiki") {
                if (defined $dir && -x "$dir/plugins/$plugin") {
-                       require IkiWiki::Plugin::external;
+                       eval { require IkiWiki::Plugin::external };
+                       if ($@) {
+                               my $reason=$@;
+                               error(sprintf(gettext("failed to load external plugin needed for %s plugin: %s"), $plugin, $reason));
+                       }
                        import IkiWiki::Plugin::external "$dir/plugins/$plugin";
+                       $loaded_plugins{$plugin}=1;
                        return 1;
                }
        }
@@ -181,17 +551,13 @@ sub loadplugin ($) { #{{{
        if ($@) {
                error("Failed to load plugin $mod: $@");
        }
+       $loaded_plugins{$plugin}=1;
        return 1;
 } #}}}
 
 sub error ($;$) { #{{{
        my $message=shift;
        my $cleaner=shift;
-       if ($config{cgi}) {
-               print "Content-type: text/html\n\n";
-               print misctemplate(gettext("Error"),
-                       "<p>".gettext("Error").": $message</p>");
-       }
        log_message('err' => $message) if $config{syslog};
        if (defined $cleaner) {
                $cleaner->();
@@ -267,17 +633,33 @@ sub pagename ($) { #{{{
 
        my $type=pagetype($file);
        my $page=$file;
-       $page=~s/\Q.$type\E*$// if defined $type;
+       $page=~s/\Q.$type\E*$// if defined $type && !$hooks{htmlize}{$type}{keepextension};
+       if ($config{indexpages} && $page=~/(.*)\/index$/) {
+               $page=$1;
+       }
        return $page;
 } #}}}
 
+sub newpagefile ($$) { #{{{
+       my $page=shift;
+       my $type=shift;
+
+       if (! $config{indexpages} || $page eq 'index') {
+               return $page.".".$type;
+       }
+       else {
+               return $page."/index.".$type;
+       }
+} #}}}
+
 sub targetpage ($$) { #{{{
        my $page=shift;
        my $ext=shift;
        
-       if (! $config{usedirs} || $page =~ /^index$/ ) {
+       if (! $config{usedirs} || $page eq 'index') {
                return $page.".".$ext;
-       } else {
+       }
+       else {
                return $page."/index.".$ext;
        }
 } #}}}
@@ -307,11 +689,12 @@ sub srcfile ($;$) { #{{{
 sub add_underlay ($) { #{{{
        my $dir=shift;
 
-       if ($dir=~/^\//) {
-               unshift @{$config{underlaydirs}}, $dir;
+       if ($dir !~ /^\//) {
+               $dir="$config{underlaydir}/../$dir";
        }
-       else {
-               unshift @{$config{underlaydirs}}, "$config{underlaydir}/../$dir";
+
+       if (! grep { $_ eq $dir } @{$config{underlaydirs}}) {
+               unshift @{$config{underlaydirs}}, $dir;
        }
 
        return 1;
@@ -335,7 +718,7 @@ sub readfile ($;$$) { #{{{
        return $ret;
 } #}}}
 
-sub prep_writefile ($$) {
+sub prep_writefile ($$) { #{{{
        my $file=shift;
        my $destdir=shift;
        
@@ -359,7 +742,7 @@ sub prep_writefile ($$) {
        }
 
        return 1;
-}
+} #}}}
 
 sub writefile ($$$;$$) { #{{{
        my $file=shift; # can include subdirs
@@ -399,7 +782,7 @@ sub will_render ($$;$) { #{{{
 
        # Important security check.
        if (-e "$config{destdir}/$dest" && ! $config{rebuild} &&
-           ! grep { $_ eq $dest } (@{$renderedfiles{$page}}, @{$oldrenderedfiles{$page}})) {
+           ! grep { $_ eq $dest } (@{$renderedfiles{$page}}, @{$oldrenderedfiles{$page}}, @{$wikistate{editpage}{previews}})) {
                error("$config{destdir}/$dest independently created, not overwriting with version from $page");
        }
 
@@ -440,7 +823,7 @@ sub bestlink ($$) { #{{{
                elsif (exists $pagecase{lc $l}) {
                        return $pagecase{lc $l};
                }
-       } while $cwd=~s!/?[^/]+$!!;
+       } while $cwd=~s{/?[^/]+$}{};
 
        if (length $config{userdir}) {
                my $l = "$config{userdir}/".lc($link);
@@ -478,13 +861,16 @@ sub pagetitle ($;$) { #{{{
 
 sub titlepage ($) { #{{{
        my $title=shift;
-       $title=~s/([^-[:alnum:]:+\/.])/$1 eq ' ' ? '_' : "__".ord($1)."__"/eg;
+       # support use w/o %config set
+       my $chars = defined $config{wiki_file_chars} ? $config{wiki_file_chars} : "-[:alnum:]+/.:_";
+       $title=~s/([^$chars]|_)/$1 eq ' ' ? '_' : "__".ord($1)."__"/eg;
        return $title;
 } #}}}
 
 sub linkpage ($) { #{{{
        my $link=shift;
-       $link=~s/([^-[:alnum:]:+\/._])/$1 eq ' ' ? '_' : "__".ord($1)."__"/eg;
+       my $chars = defined $config{wiki_file_chars} ? $config{wiki_file_chars} : "-[:alnum:]+/.:_";
+       $link=~s/([^$chars])/$1 eq ' ' ? '_' : "__".ord($1)."__"/eg;
        return $link;
 } #}}}
 
@@ -520,6 +906,13 @@ sub abs2rel ($$) { #{{{
 } #}}}
 
 sub displaytime ($;$) { #{{{
+       # Plugins can override this function to mark up the time to
+       # display.
+       return '<span class="date">'.formattime(@_).'</span>';
+} #}}}
+
+sub formattime ($;$) { #{{{
+       # Plugins can override this function to format the time.
        my $time=shift;
        my $format=shift;
        if (! defined $format) {
@@ -531,32 +924,42 @@ sub displaytime ($;$) { #{{{
        return decode_utf8(POSIX::strftime($format, localtime($time)));
 } #}}}
 
-sub beautify_url ($) { #{{{
+sub beautify_urlpath ($) { #{{{
        my $url=shift;
 
        if ($config{usedirs}) {
                $url =~ s!/index.$config{htmlext}$!/!;
        }
-       $url =~ s!^$!./!; # Browsers don't like empty links...
+
+       # Ensure url is not an empty link, and
+       # if it's relative, make that explicit to avoid colon confusion.
+       if ($url !~ /^\//) {
+               $url="./$url";
+       }
 
        return $url;
 } #}}}
 
-sub urlto ($$) { #{{{
+sub urlto ($$;$) { #{{{
        my $to=shift;
        my $from=shift;
-
+       my $absolute=shift;
+       
        if (! length $to) {
-               return beautify_url(baseurl($from));
+               return beautify_urlpath(baseurl($from)."index.$config{htmlext}");
        }
 
        if (! $destsources{$to}) {
                $to=htmlpage($to);
        }
 
+       if ($absolute) {
+               return $config{url}.beautify_urlpath("/".$to);
+       }
+
        my $link = abs2rel($to, dirname(htmlpage($from)));
 
-       return beautify_url($link);
+       return beautify_urlpath($link);
 } #}}}
 
 sub htmllink ($$$;@) { #{{{
@@ -595,7 +998,7 @@ sub htmllink ($$$;@) { #{{{
                        return "<span class=\"createlink\"><a href=\"".
                                cgiurl(
                                        do => "create",
-                                       page => pagetitle(lc($link), 1),
+                                       page => lc($link),
                                        from => $lpage
                                ).
                                "\" rel=\"nofollow\">?</a>$linktext</span>"
@@ -603,7 +1006,7 @@ sub htmllink ($$$;@) { #{{{
        }
        
        $bestlink=abs2rel($bestlink, dirname(htmlpage($page)));
-       $bestlink=beautify_url($bestlink);
+       $bestlink=beautify_urlpath($bestlink);
        
        if (! $opts{noimageinline} && isinlinableimage($bestlink)) {
                return "<img src=\"$bestlink\" alt=\"$linktext\" />";
@@ -641,8 +1044,9 @@ sub userlink ($) { #{{{
        }
 } #}}}
 
-sub htmlize ($$$) { #{{{
+sub htmlize ($$$$) { #{{{
        my $page=shift;
+       my $destpage=shift;
        my $type=shift;
        my $content=shift;
        
@@ -661,6 +1065,7 @@ sub htmlize ($$$) { #{{{
        run_hooks(sanitize => sub {
                $content=shift->(
                        page => $page,
+                       destpage => $destpage,
                        content => $content,
                );
        });
@@ -692,7 +1097,7 @@ sub linkify ($$$) { #{{{
        return $content;
 } #}}}
 
-my %preprocessing;
+our %preprocessing;
 our $preprocess_preview=0;
 sub preprocess ($$$;$$) { #{{{
        my $page=shift; # the page the data comes from
@@ -710,6 +1115,8 @@ sub preprocess ($$$;$$) { #{{{
                my $prefix=shift;
                my $command=shift;
                my $params=shift;
+               $params="" if ! defined $params;
+
                if (length $escape) {
                        return "[[$prefix$command $params]]";
                }
@@ -754,31 +1161,37 @@ sub preprocess ($$$;$$) { #{{{
                        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}).
-                               "]]";
+                               return "[[!$command <span class=\"error\">".
+                                       sprintf(gettext("preprocessing loop detected on %s at depth %i"),
+                                               $page, $preprocessing{$page}).
+                                       "</span>]]";
                        }
                        my $ret;
                        if (! $scan) {
-                               $ret=$hooks{preprocess}{$command}{call}->(
-                                       @params,
-                                       page => $page,
-                                       destpage => $destpage,
-                                       preview => $preprocess_preview,
-                               );
+                               $ret=eval {
+                                       $hooks{preprocess}{$command}{call}->(
+                                               @params,
+                                               page => $page,
+                                               destpage => $destpage,
+                                               preview => $preprocess_preview,
+                                       );
+                               };
+                               if ($@) {
+                                       chomp $@;
+                                       $ret="[[!$command <span class=\"error\">".
+                                               gettext("Error").": $@"."</span>]]";
+                               }
                        }
                        else {
                                # use void context during scan pass
-                               $hooks{preprocess}{$command}{call}->(
-                                       @params,
-                                       page => $page,
-                                       destpage => $destpage,
-                                       preview => $preprocess_preview,
-                               );
+                               eval {
+                                       $hooks{preprocess}{$command}{call}->(
+                                               @params,
+                                               page => $page,
+                                               destpage => $destpage,
+                                               preview => $preprocess_preview,
+                                       );
+                               };
                                $ret="";
                        }
                        $preprocessing{$page}--;
@@ -812,7 +1225,8 @@ sub preprocess ($$$;$$) { #{{{
                        *)?             # 0 or more parameters
                        \]\]            # directive closed
                }sx;
-       } else {
+       }
+       else {
                $regex = qr{
                        (\\?)           # 1: escape?
                        \[\[(!?)        # directive open; 2: optional prefix
@@ -934,31 +1348,42 @@ sub loadindex () { #{{{
                        return;
                }
        }
-       my $ret=Storable::fd_retrieve($in);
-       if (! defined $ret) {
+
+       my $index=Storable::fd_retrieve($in);
+       if (! defined $index) {
                return 0;
        }
-       my %index=%$ret;
-       foreach my $src (keys %index) {
-               my %d=%{$index{$src}};
+
+       my $pages;
+       if (exists $index->{version} && ! ref $index->{version}) {
+               $pages=$index->{page};
+               %wikistate=%{$index->{state}};
+       }
+       else {
+               $pages=$index;
+               %wikistate=();
+       }
+
+       foreach my $src (keys %$pages) {
+               my $d=$pages->{$src};
                my $page=pagename($src);
-               $pagectime{$page}=$d{ctime};
+               $pagectime{$page}=$d->{ctime};
                if (! $config{rebuild}) {
                        $pagesources{$page}=$src;
-                       $pagemtime{$page}=$d{mtime};
-                       $renderedfiles{$page}=$d{dest};
-                       if (exists $d{links} && ref $d{links}) {
-                               $links{$page}=$d{links};
-                               $oldlinks{$page}=[@{$d{links}}];
+                       $pagemtime{$page}=$d->{mtime};
+                       $renderedfiles{$page}=$d->{dest};
+                       if (exists $d->{links} && ref $d->{links}) {
+                               $links{$page}=$d->{links};
+                               $oldlinks{$page}=[@{$d->{links}}];
                        }
-                       if (exists $d{depends}) {
-                               $depends{$page}=$d{depends};
+                       if (exists $d->{depends}) {
+                               $depends{$page}=$d->{depends};
                        }
-                       if (exists $d{state}) {
-                               $pagestate{$page}=$d{state};
+                       if (exists $d->{state}) {
+                               $pagestate{$page}=$d->{state};
                        }
                }
-               $oldrenderedfiles{$page}=[@{$d{dest}}];
+               $oldrenderedfiles{$page}=[@{$d->{dest}}];
        }
        foreach my $page (keys %pagesources) {
                $pagecase{lc $page}=$page;
@@ -984,12 +1409,13 @@ sub saveindex () { #{{{
        my $newfile="$config{wikistatedir}/indexdb.new";
        my $cleanup = sub { unlink($newfile) };
        open (my $out, '>', $newfile) || error("cannot write to $newfile: $!", $cleanup);
+
        my %index;
        foreach my $page (keys %pagemtime) {
                next unless $pagemtime{$page};
                my $src=$pagesources{$page};
 
-               $index{$src}={
+               $index{page}{$src}={
                        ctime => $pagectime{$page},
                        mtime => $pagemtime{$page},
                        dest => $renderedfiles{$page},
@@ -997,17 +1423,26 @@ sub saveindex () { #{{{
                };
 
                if (exists $depends{$page}) {
-                       $index{$src}{depends} = $depends{$page};
+                       $index{page}{$src}{depends} = $depends{$page};
                }
 
                if (exists $pagestate{$page}) {
                        foreach my $id (@hookids) {
                                foreach my $key (keys %{$pagestate{$page}{$id}}) {
-                                       $index{$src}{state}{$id}{$key}=$pagestate{$page}{$id}{$key};
+                                       $index{page}{$src}{state}{$id}{$key}=$pagestate{$page}{$id}{$key};
                                }
                        }
                }
        }
+
+       $index{state}={};
+       foreach my $id (@hookids) {
+               foreach my $key (keys %{$wikistate{$id}}) {
+                       $index{state}{$id}{$key}=$wikistate{$id}{$key};
+               }
+       }
+       
+       $index{version}="3";
        my $ret=Storable::nstore_fd(\%index, $out);
        return if ! defined $ret || ! $ret;
        close $out || error("failed saving to $newfile: $!", $cleanup);
@@ -1107,6 +1542,50 @@ sub run_hooks ($$) { # {{{
        return 1;
 } #}}}
 
+sub rcs_update () { #{{{
+       $hooks{rcs}{rcs_update}{call}->(@_);
+} #}}}
+
+sub rcs_prepedit ($) { #{{{
+       $hooks{rcs}{rcs_prepedit}{call}->(@_);
+} #}}}
+
+sub rcs_commit ($$$;$$) { #{{{
+       $hooks{rcs}{rcs_commit}{call}->(@_);
+} #}}}
+
+sub rcs_commit_staged ($$$) { #{{{
+       $hooks{rcs}{rcs_commit_staged}{call}->(@_);
+} #}}}
+
+sub rcs_add ($) { #{{{
+       $hooks{rcs}{rcs_add}{call}->(@_);
+} #}}}
+
+sub rcs_remove ($) { #{{{
+       $hooks{rcs}{rcs_remove}{call}->(@_);
+} #}}}
+
+sub rcs_rename ($$) { #{{{
+       $hooks{rcs}{rcs_rename}{call}->(@_);
+} #}}}
+
+sub rcs_recentchanges ($) { #{{{
+       $hooks{rcs}{rcs_recentchanges}{call}->(@_);
+} #}}}
+
+sub rcs_diff ($) { #{{{
+       $hooks{rcs}{rcs_diff}{call}->(@_);
+} #}}}
+
+sub rcs_getctime ($) { #{{{
+       $hooks{rcs}{rcs_getctime}{call}->(@_);
+} #}}}
+
+sub rcs_receive () { #{{{
+       $hooks{rcs}{rcs_receive}{call}->();
+} #}}}
+
 sub globlist_to_pagespec ($) { #{{{
        my @globlist=split(' ', shift);
 
@@ -1193,6 +1672,37 @@ sub gettext { #{{{
        }
 } #}}}
 
+sub yesno ($) { #{{{
+       my $val=shift;
+
+       return (defined $val && lc($val) eq gettext("yes"));
+} #}}}
+
+sub inject { #{{{
+       # Injects a new function into the symbol table to replace an
+       # exported function.
+       my %params=@_;
+
+       # This is deep ugly perl foo, beware.
+       no strict;
+       no warnings;
+       if (! defined $params{parent}) {
+               $params{parent}='::';
+               $params{old}=\&{$params{name}};
+               $params{name}=~s/.*:://;
+       }
+       my $parent=$params{parent};
+       foreach my $ns (grep /^\w+::/, keys %{$parent}) {
+               $ns = $params{parent} . $ns;
+               inject(%params, parent => $ns) unless $ns eq '::main::';
+               *{$ns . $params{name}} = $params{call}
+                       if exists ${$ns}{$params{name}} &&
+                          \&{${$ns}{$params{name}}} == $params{old};
+       }
+       use strict;
+       use warnings;
+} #}}}
+
 sub pagespec_merge ($$) { #{{{
        my $a=shift;
        my $b=shift;
@@ -1288,6 +1798,13 @@ sub pagespec_valid ($) { #{{{
        return ! $@;
 } #}}}
 
+sub glob2re ($) { #{{{
+       my $re=quotemeta(shift);
+       $re=~s/\\\*/.*/g;
+       $re=~s/\\\?/./g;
+       return $re;
+} #}}}
+
 package IkiWiki::FailReason;
 
 use overload ( #{{{
@@ -1334,12 +1851,8 @@ sub match_glob ($$;@) { #{{{
                $glob="$from/$glob" if length $from;
        }
 
-       # turn glob into safe regexp
-       $glob=quotemeta($glob);
-       $glob=~s/\\\*/.*/g;
-       $glob=~s/\\\?/./g;
-
-       if ($page=~/^$glob$/i) {
+       my $regexp=IkiWiki::glob2re($glob);
+       if ($page=~/^$regexp$/i) {
                if (! IkiWiki::isinternal($page) || $params{internal}) {
                        return IkiWiki::SuccessReason->new("$glob matches $page");
                }
@@ -1451,4 +1964,61 @@ sub match_creation_year ($$;@) { #{{{
        }
 } #}}}
 
+sub match_user ($$;@) { #{{{
+       shift;
+       my $user=shift;
+       my %params=@_;
+       
+       if (! exists $params{user}) {
+               return IkiWiki::FailReason->new("no user specified");
+       }
+
+       if (defined $params{user} && lc $params{user} eq lc $user) {
+               return IkiWiki::SuccessReason->new("user is $user");
+       }
+       elsif (! defined $params{user}) {
+               return IkiWiki::FailReason->new("not logged in");
+       }
+       else {
+               return IkiWiki::FailReason->new("user is $params{user}, not $user");
+       }
+} #}}}
+
+sub match_admin ($$;@) { #{{{
+       shift;
+       shift;
+       my %params=@_;
+       
+       if (! exists $params{user}) {
+               return IkiWiki::FailReason->new("no user specified");
+       }
+
+       if (defined $params{user} && IkiWiki::is_admin($params{user})) {
+               return IkiWiki::SuccessReason->new("user is an admin");
+       }
+       elsif (! defined $params{user}) {
+               return IkiWiki::FailReason->new("not logged in");
+       }
+       else {
+               return IkiWiki::FailReason->new("user is not an admin");
+       }
+} #}}}
+
+sub match_ip ($$;@) { #{{{
+       shift;
+       my $ip=shift;
+       my %params=@_;
+       
+       if (! exists $params{ip}) {
+               return IkiWiki::FailReason->new("no IP specified");
+       }
+
+       if (defined $params{ip} && lc $params{ip} eq lc $ip) {
+               return IkiWiki::SuccessReason->new("IP is $ip");
+       }
+       else {
+               return IkiWiki::FailReason->new("IP is $params{ip}, not $ip");
+       }
+} #}}}
+
 1