X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/88830016154d99a0155e1cee58582e9f32dcca51..4745391360cf0843e376676479fee306d0a8312d:/IkiWiki/Plugin/meta.pm

diff --git a/IkiWiki/Plugin/meta.pm b/IkiWiki/Plugin/meta.pm
index bac163469..4aa545a93 100644
--- a/IkiWiki/Plugin/meta.pm
+++ b/IkiWiki/Plugin/meta.pm
@@ -4,28 +4,40 @@ package IkiWiki::Plugin::meta;
 
 use warnings;
 use strict;
-use IkiWiki;
+use IkiWiki 2.00;
 
 my %meta;
 my %title;
+my %permalink;
+my %author;
+my %authorurl;
+my %license;
+my %copyright;
 
 sub import { #{{{
-	IkiWiki::hook(type => "preprocess", id => "meta", 
-		call => \&preprocess);
-	IkiWiki::hook(type => "filter", id => "meta", 
-		call => \&filter);
-	IkiWiki::hook(type => "pagetemplate", id => "meta", 
-		call => \&pagetemplate);
+	hook(type => "preprocess", id => "meta", call => \&preprocess, scan => 1);
+	hook(type => "filter", id => "meta", call => \&filter);
+	hook(type => "pagetemplate", id => "meta", call => \&pagetemplate);
 } # }}}
 
 sub filter (@) { #{{{
 	my %params=@_;
 	
 	$meta{$params{page}}='';
+	delete $pagestate{$params{page}}{meta}{redir};
 
 	return $params{content};
 } # }}}
 
+sub scrub ($) { #{{{
+	if (IkiWiki::Plugin::htmlscrubber->can("sanitize")) {
+		return IkiWiki::Plugin::htmlscrubber::sanitize(content => shift);
+	}
+	else {
+		return shift;
+	}
+} #}}}
+
 sub preprocess (@) { #{{{
 	if (! @_) {
 		return "";
@@ -36,7 +48,9 @@ sub preprocess (@) { #{{{
 	delete $params{$key};
 	my $page=$params{page};
 	delete $params{page};
+	my $destpage=$params{destpage};
 	delete $params{destpage};
+	delete $params{preview};
 
 	eval q{use HTML::Entities};
 	# Always dencode, even if encoding later, since it might not be
@@ -45,21 +59,105 @@ sub preprocess (@) { #{{{
 
 	if ($key eq 'link') {
 		if (%params) {
-			$meta{$page}.="<link href=\"".encode_entities($value)."\" ".
-				join(" ", map { encode_entities($_)."=\"".encode_entities(decode_entities($params{$_}))."\"" } keys %params).
-				" />\n";
+			$meta{$page}.=scrub("<link href=\"".encode_entities($value)."\" ".
+				join(" ", map {
+					encode_entities($_)."=\"".encode_entities(decode_entities($params{$_}))."\""
+				} keys %params).
+				" />\n");
 		}
 		else {
 			# hidden WikiLink
-			push @{$IkiWiki::links{$page}}, $value;
+			push @{$links{$page}}, $value;
+		}
+	}
+	elsif ($key eq 'redir') {
+		return "" if $destpage ne $page;
+		my $safe=0;
+		if ($value !~ /^\w+:\/\//) {
+			add_depends($page, $value);
+			my $link=bestlink($page, $value);
+			if (! length $link) {
+				return "[[meta ".gettext("redir page not found")."]]";
+			}
+
+			$value=urlto($link, $page);
+			$safe=1;
+
+			# redir cycle detection
+			$pagestate{$page}{meta}{redir}=$link;
+			my $at=$page;
+			my %seen;
+			while (exists $pagestate{$at}{meta}{redir}) {
+				if ($seen{$at}) {
+					return "[[meta ".gettext("redir cycle is not allowed")."]]";
+				}
+				$seen{$at}=1;
+				$at=$pagestate{$at}{meta}{redir};
+			}
+		}
+		else {
+			$value=encode_entities($value);
+		}
+		my $delay=int(exists $params{delay} ? $params{delay} : 0);
+		my $redir="<meta http-equiv=\"refresh\" content=\"$delay; URL=$value\">";
+		if (! $safe) {
+			$redir=scrub($redir);
 		}
+		$meta{$page}.=$redir;
 	}
 	elsif ($key eq 'title') {
-		$title{$page}=$value;
+		$title{$page}=HTML::Entities::encode_numeric($value);
+	}
+	elsif ($key eq 'permalink') {
+		$permalink{$page}=$value;
+		$meta{$page}.=scrub("<link rel=\"bookmark\" href=\"".encode_entities($value)."\" />\n");
+	}
+	elsif ($key eq 'date') {
+		eval q{use Date::Parse};
+		if (! $@) {
+			my $time = str2time($value);
+			$IkiWiki::pagectime{$page}=$time if defined $time;
+		}
+	}
+	elsif ($key eq 'stylesheet') {
+		my $rel=exists $params{rel} ? $params{rel} : "alternate stylesheet";
+		my $title=exists $params{title} ? $params{title} : $value;
+		# adding .css to the value prevents using any old web
+		# editable page as a stylesheet
+		my $stylesheet=bestlink($page, $value.".css");
+		if (! length $stylesheet) {
+			return "[[meta ".gettext("stylesheet not found")."]]";
+		}
+		$meta{$page}.='<link href="'.urlto($stylesheet, $page).
+			'" rel="'.encode_entities($rel).
+			'" title="'.encode_entities($title).
+			"\" type=\"text/css\" />\n";
+	}
+	elsif ($key eq 'openid') {
+		if (exists $params{server}) {
+			$meta{$page}.='<link href="'.encode_entities($params{server}).
+				"\" rel=\"openid.server\" />\n";
+		}
+		$meta{$page}.='<link href="'.encode_entities($value).
+			"\" rel=\"openid.delegate\" />\n";
+	}
+	elsif ($key eq 'license') {
+		$meta{$page}.="<link rel=\"license\" href=\"#page_license\" />\n";
+		$license{$page}=$value;
+	}
+	elsif ($key eq 'copyright') {
+		$meta{$page}.="<link rel=\"copyright\" href=\"#page_copyright\" />\n";
+		$copyright{$page}=$value;
 	}
 	else {
-		$meta{$page}.="<meta name=\"".encode_entities($key).
-			"\" content=\"".encode_entities($value)."\" />\n";
+		$meta{$page}.=scrub("<meta name=\"".encode_entities($key).
+			"\" content=\"".encode_entities($value)."\" />\n");
+		if ($key eq 'author') {
+			$author{$page}=$value;
+		}
+		elsif ($key eq 'authorurl') {
+			$authorurl{$page}=$value;
+		}
 	}
 
 	return "";
@@ -68,12 +166,41 @@ sub preprocess (@) { #{{{
 sub pagetemplate (@) { #{{{
 	my %params=@_;
         my $page=$params{page};
+        my $destpage=$params{destpage};
         my $template=$params{template};
 
 	$template->param(meta => $meta{$page})
 		if exists $meta{$page} && $template->query(name => "meta");
-	$template->param(title => $title{$page})
-		if exists $title{$page} && $template->query(name => "title");
+	if (exists $title{$page} && $template->query(name => "title")) {
+		$template->param(title => $title{$page});
+		$template->param(title_overridden => 1);
+	}
+	$template->param(permalink => $permalink{$page})
+		if exists $permalink{$page} && $template->query(name => "permalink");
+	$template->param(author => $author{$page})
+		if exists $author{$page} && $template->query(name => "author");
+	$template->param(authorurl => $authorurl{$page})
+		if exists $authorurl{$page} && $template->query(name => "authorurl");
+		
+	if ($page ne $destpage &&
+	    ((exists $license{$page}   && ! exists $license{$destpage}) ||
+	     (exists $copyright{$page} && ! exists $copyright{$destpage}))) {
+		# Force a scan of the destpage to get its copyright/license
+		# info. If the info is declared after an inline, it will
+		# otherwise not be available at this point.
+		IkiWiki::scan($pagesources{$destpage});
+	}
+
+	if (exists $license{$page} && $template->query(name => "license") &&
+	    ($page eq $destpage || ! exists $license{$destpage} ||
+	     $license{$page} ne $license{$destpage})) {
+		$template->param(license => IkiWiki::linkify($page, $destpage, $license{$page}));
+	}
+	if (exists $copyright{$page} && $template->query(name => "copyright") &&
+	    ($page eq $destpage || ! exists $copyright{$destpage} ||
+	     $copyright{$page} ne $copyright{$destpage})) {
+		$template->param(copyright => IkiWiki::linkify($page, $destpage, $copyright{$page}));
+	}
 } # }}}
 
 1