X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/11a9853d4b73aec4eaabc7c7714c38219cee3468..e6e8d906d13313a34320c3de20254077e4f25a97:/IkiWiki.pm

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 51e683bb4..2ad2f792d 100644
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -12,16 +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
-	    %loaded_plugins};
+	    %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 $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE
@@ -41,6 +42,28 @@ sub getsetup () { #{{{
 		safe => 1,
 		rebuild => 1,
 	},
+	adminemail => {
+		type => "string",
+		default => undef,
+		example => 'me@example.com',
+		description => "contact email for wiki",
+		safe => 1,
+		rebuild => 0,
+	},
+	adminuser => {
+		type => "string",
+		default => [],
+		description => "users who are wiki admins",
+		safe => 1,
+		rebuild => 0,
+	},
+	banned_users => {
+		type => "string",
+		default => [],
+		description => "users who are banned from the wiki",
+		safe => 1,
+		rebuild => 0,
+	},
 	srcdir => {
 		type => "string",
 		default => undef,
@@ -57,21 +80,6 @@ sub getsetup () { #{{{
 		safe => 0, # path
 		rebuild => 1,
 	},
-	adminuser => {
-		type => "string",
-		default => [],
-		description => "user names of wiki admins",
-		safe => 1,
-		rebuild => 0,
-	},
-	adminemail => {
-		type => "string",
-		default => undef,
-		example => 'me@example.com',
-		description => "contact email for wiki",
-		safe => 1,
-		rebuild => 0,
-	},
 	url => {
 		type => "string",
 		default => '',
@@ -112,9 +120,9 @@ sub getsetup () { #{{{
 	},
 	default_plugins => {
 		type => "internal",
-		default => [qw{mdwn link inline htmlscrubber passwordauth
+		default => [qw{mdwn link inline meta htmlscrubber passwordauth
 				openid signinedit lockedit conditional
-				recentchanges parentlinks}],
+				recentchanges parentlinks editpage}],
 		description => "plugins to enable by default",
 		safe => 0,
 		rebuild => 1,
@@ -137,6 +145,7 @@ sub getsetup () { #{{{
 		type => "string",
 		default => "$installdir/share/ikiwiki/templates",
 		description => "location of template files",
+		advanced => 1,
 		safe => 0, # path
 		rebuild => 1,
 	},
@@ -144,6 +153,7 @@ sub getsetup () { #{{{
 		type => "string",
 		default => "$installdir/share/ikiwiki/basewiki",
 		description => "base wiki source location",
+		advanced => 1,
 		safe => 0, # path
 		rebuild => 0,
 	},
@@ -163,14 +173,14 @@ sub getsetup () { #{{{
 	},
 	verbose => {
 		type => "boolean",
-		default => 0,
+		example => 1,
 		description => "display verbose messages when building?",
 		safe => 1,
 		rebuild => 0,
 	},
 	syslog => {
 		type => "boolean",
-		default => 0,
+		example => 1,
 		description => "log to syslog?",
 		safe => 1,
 		rebuild => 0,
@@ -189,6 +199,13 @@ sub getsetup () { #{{{
 		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,
@@ -196,6 +213,14 @@ sub getsetup () { #{{{
 		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",
@@ -214,6 +239,7 @@ sub getsetup () { #{{{
 		type => "string",
 		default => '%c',
 		description => "strftime format string to display date",
+		advanced => 1,
 		safe => 1,
 		rebuild => 1,
 	},
@@ -222,16 +248,10 @@ sub getsetup () { #{{{
 		default => undef,
 		example => "en_US.UTF-8",
 		description => "UTF-8 locale to use",
+		advanced => 1,
 		safe => 0,
 		rebuild => 1,
 	},
-	sslcookie => {
-		type => "boolean",
-		default => 0,
-		description => "only send cookies over SSL connections?",
-		safe => 1,
-		rebuild => 0,
-	},
 	userdir => {
 		type => "string",
 		default => "",
@@ -251,14 +271,23 @@ sub getsetup () { #{{{
 		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,
+	},
+	wrappergroup => {
+		type => "string",
+		example => "ikiwiki",
+		description => "group for wrappers to run in",
+		advanced => 1,
 		safe => 0, # paranoia
 		rebuild => 0,
 	},
@@ -267,6 +296,7 @@ sub getsetup () { #{{{
 		default => "",
 		example => "$ENV{HOME}/.ikiwiki/",
 		description => "extra library and plugin directory",
+		advanced => 1,
 		safe => 0, # directory
 		rebuild => 0,
 	},
@@ -282,16 +312,10 @@ sub getsetup () { #{{{
 		default => undef,
 		example => '\.wav$',
 		description => "regexp of source files to ignore",
+		advanced => 1,
 		safe => 0, # regexp
 		rebuild => 1,
 	},
-	banned_users => {
-		type => "string",
-		default => [],
-		description => "users who are banned from the wiki",
-		safe => 1,
-		rebuild => 0,
-	},
 	wiki_file_prune_regexps => {
 		type => "internal",
 		default => [qr/(^|\/)\.\.(\/|$)/, qr/^\./, qr/\/\./,
@@ -303,9 +327,15 @@ sub getsetup () { #{{{
 		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",
-		default => qr/(^[-[:alnum:]_.:\/+]+$)/,
 		description => "regexp of legal source files",
 		safe => 0,
 		rebuild => 1,
@@ -345,6 +375,13 @@ sub getsetup () { #{{{
 		safe => 0,
 		rebuild => 0,
 	},
+	setup => {
+		type => "internal",
+		default => undef,
+		description => "running in setup mode",
+		safe => 0,
+		rebuild => 0,
+	},
 	refresh => {
 		type => "internal",
 		default => 0,
@@ -352,6 +389,13 @@ sub getsetup () { #{{{
 		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,
@@ -366,10 +410,24 @@ sub getsetup () { #{{{
 		safe => 0,
 		rebuild => 0,
 	},
-	setup => {
+	wikistatedir => {
+		type => "internal",
+		default => undef,
+		description => "path to the .ikiwiki directory holding ikiwiki state",
+		safe => 0,
+		rebuild => 0,
+	},
+	setupfile => {
 		type => "internal",
 		default => undef,
-		description => "setup file to read",
+		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,
 	},
@@ -397,6 +455,10 @@ 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}}) {
@@ -419,7 +481,7 @@ sub checkconfig () { #{{{
 	}
 	
 	$config{wikistatedir}="$config{srcdir}/.ikiwiki"
-		unless exists $config{wikistatedir};
+		unless exists $config{wikistatedir} && defined $config{wikistatedir};
 
 	if (defined $config{umask}) {
 		umask(possibly_foolish_untaint($config{umask}));
@@ -455,7 +517,9 @@ sub loadplugins () { #{{{
 		unshift @INC, possibly_foolish_untaint($config{libdir});
 	}
 
-	loadplugin($_) foreach @{$config{default_plugins}}, @{$config{add_plugins}};
+	foreach my $plugin (@{$config{default_plugins}}, @{$config{add_plugins}}) {
+		loadplugin($plugin);
+	}
 	
 	if ($config{rcs}) {
 		if (exists $IkiWiki::hooks{rcs}) {
@@ -485,7 +549,11 @@ sub loadplugin ($) { #{{{
 	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;
@@ -579,17 +647,33 @@ 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;
 	}
 } #}}}
@@ -619,11 +703,12 @@ 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;
@@ -643,6 +728,10 @@ sub readfile ($;$$) { #{{{
 	binmode($in) if ($binary);
 	return \*$in if $wantfd;
 	my $ret=<$in>;
+	# check for invalid utf-8, and toss it back to avoid crashes
+	if (! utf8::valid($ret)) {
+		$ret=encode_utf8($ret);
+	}
 	close $in || error("failed to read $file: $!");
 	return $ret;
 } #}}}
@@ -711,7 +800,7 @@ sub will_render ($$;$) { #{{{
 
 	# 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");
 	}
 
@@ -752,7 +841,7 @@ 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($link);
@@ -790,13 +879,16 @@ sub pagetitle ($;$) { #{{{
 
 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;
 } #}}}
 
@@ -832,6 +924,13 @@ 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 $format) {
@@ -850,9 +949,9 @@ sub beautify_urlpath ($) { #{{{
 		$url =~ s!/index.$config{htmlext}$!/!;
 	}
 
-	# Ensure url is not an empty link, and
-	# if it's relative, make that explicit to avoid colon confusion.
-	if ($url !~ /^\//) {
+	# Ensure url is not an empty link, and if necessary,
+	# add ./ to avoid colon confusion.
+	if ($url !~ /^\// && $url !~ /^\.\.\//) {
 		$url="./$url";
 	}
 
@@ -1034,6 +1133,8 @@ sub preprocess ($$$;$$) { #{{{
 		my $prefix=shift;
 		my $command=shift;
 		my $params=shift;
+		$params="" if ! defined $params;
+
 		if (length $escape) {
 			return "[[$prefix$command $params]]";
 		}
@@ -1190,8 +1291,7 @@ sub indexlink () { #{{{
 
 my $wikilock;
 
-sub lockwiki (;$) { #{{{
-	my $wait=@_ ? shift : 1;
+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 $config{wikistatedir}) {
@@ -1199,25 +1299,14 @@ sub lockwiki (;$) { #{{{
 	}
 	open($wikilock, '>', "$config{wikistatedir}/lockfile") ||
 		error ("cannot write to $config{wikistatedir}/lockfile: $!");
-	if (! flock($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 $wait seconds without lock being freed (possible stuck process or stale lock?)");
-		}
-		else {
-			return 0;
-		}
+	if (! flock($wikilock, 2)) { # LOCK_EX
+		error("failed to get lock");
 	}
 	return 1;
 } #}}}
 
 sub unlockwiki () { #{{{
+	POSIX::close($ENV{IKIWIKI_CGILOCK_FD}) if exists $ENV{IKIWIKI_CGILOCK_FD};
 	return close($wikilock) if $wikilock;
 	return;
 } #}}}
@@ -1265,31 +1354,42 @@ 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;
@@ -1315,12 +1415,13 @@ 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},
@@ -1328,17 +1429,26 @@ 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: $!", $cleanup);
@@ -1478,6 +1588,10 @@ sub rcs_getctime ($) { #{{{
 	$hooks{rcs}{rcs_getctime}{call}->(@_);
 } #}}}
 
+sub rcs_receive () { #{{{
+	$hooks{rcs}{rcs_receive}{call}->();
+} #}}}
+
 sub globlist_to_pagespec ($) { #{{{
 	my @globlist=split(' ', shift);
 
@@ -1570,6 +1684,31 @@ sub yesno ($) { #{{{
 	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 ($$) { #{{{
 	my $a=shift;
 	my $b=shift;
@@ -1664,7 +1803,7 @@ sub pagespec_valid ($) { #{{{
 	my $sub=pagespec_translate($spec);
 	return ! $@;
 } #}}}
-	
+
 sub glob2re ($) { #{{{
 	my $re=quotemeta(shift);
 	$re=~s/\\\*/.*/g;
@@ -1761,6 +1900,10 @@ sub match_link ($$;@) { #{{{
 		else {
 			return IkiWiki::SuccessReason->new("$page links to page $p matching $link")
 				if match_glob($p, $link, %params);
+			$p=~s/^\///;
+			$link=~s/^\///;
+			return IkiWiki::SuccessReason->new("$page links to page $p matching $link")
+				if match_glob($p, $link, %params);
 		}
 	}
 	return IkiWiki::FailReason->new("$page does not link to $link");
@@ -1831,4 +1974,61 @@ 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