X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/cddc335b2bd98a302b261200c12d61b05476d727..9fca7f2f8b64f4caded4a0099cef1f4d152dabee:/IkiWiki/Plugin/meta.pm

diff --git a/IkiWiki/Plugin/meta.pm b/IkiWiki/Plugin/meta.pm
index 621e87674..0afe1c362 100644
--- a/IkiWiki/Plugin/meta.pm
+++ b/IkiWiki/Plugin/meta.pm
@@ -38,6 +38,17 @@ sub scrub ($) { #{{{
 	}
 } #}}}
 
+sub safeurl ($) { #{{{
+	my $url=shift;
+	if (exists $IkiWiki::Plugin::htmlscrubber::{safe_url_regexp} &&
+	    defined $IkiWiki::Plugin::htmlscrubber::safe_url_regexp) {
+		return $url=~/$IkiWiki::Plugin::htmlscrubber::safe_url_regexp/;
+	}
+	else {
+		return 1;
+	}
+} #}}}
+
 sub htmlize ($$$) { #{{{
 	my $page = shift;
 	my $destpage = shift;
@@ -88,7 +99,7 @@ sub preprocess (@) { #{{{
 		# fallthorough
 	}
 	elsif ($key eq 'authorurl') {
-		$pagestate{$page}{meta}{authorurl}=$value;
+		$pagestate{$page}{meta}{authorurl}=$value if safeurl($value);
 		# fallthrough
 	}
 
@@ -106,8 +117,10 @@ sub preprocess (@) { #{{{
 		}
 	}
 	elsif ($key eq 'permalink') {
-		$pagestate{$page}{meta}{permalink}=$value;
-		push @{$metaheaders{$page}}, scrub('<link rel="bookmark" href="'.encode_entities($value).'" />');
+		if (safeurl($value)) {
+			$pagestate{$page}{meta}{permalink}=$value;
+			push @{$metaheaders{$page}}, scrub('<link rel="bookmark" href="'.encode_entities($value).'" />');
+		}
 	}
 	elsif ($key eq 'stylesheet') {
 		my $rel=exists $params{rel} ? $params{rel} : "alternate stylesheet";
@@ -124,12 +137,22 @@ sub preprocess (@) { #{{{
 			"\" type=\"text/css\" />";
 	}
 	elsif ($key eq 'openid') {
-		if (exists $params{server}) {
+		if (exists $params{server} && safeurl($params{server})) {
 			push @{$metaheaders{$page}}, '<link href="'.encode_entities($params{server}).
 				'" rel="openid.server" />';
+			push @{$metaheaders{$page}}, '<link href="'.encode_entities($params{server}).
+				'" rel="openid2.provider" />';
+		}
+		if (safeurl($value)) {
+			push @{$metaheaders{$page}}, '<link href="'.encode_entities($value).
+				'" rel="openid.delegate" />';
+			push @{$metaheaders{$page}}, '<link href="'.encode_entities($value).
+				'" rel="openid2.local_id" />';
+		}
+		if (exists $params{"xrds-location"} && safeurl($params{"xrds-location"})) {
+			push @{$metaheaders{$page}}, '<meta http-equiv="X-XRDS-Location"'.
+				'content="'.encode_entities($params{"xrds-location"}).'" />';
 		}
-		push @{$metaheaders{$page}}, '<link href="'.encode_entities($value).
-			'" rel="openid.delegate" />';
 	}
 	elsif ($key eq 'redir') {
 		return "" if $page ne $destpage;
@@ -163,7 +186,7 @@ sub preprocess (@) { #{{{
 			$value=encode_entities($value);
 		}
 		my $delay=int(exists $params{delay} ? $params{delay} : 0);
-		my $redir="<meta http-equiv=\"refresh\" content=\"$delay; URL=$value\">";
+		my $redir="<meta http-equiv=\"refresh\" content=\"$delay; URL=$value\" />";
 		if (! $safe) {
 			$redir=scrub($redir);
 		}
@@ -178,6 +201,10 @@ sub preprocess (@) { #{{{
 				" />\n");
 		}
 	}
+	elsif ($key eq 'robots') {
+		push @{$metaheaders{$page}}, '<meta name="robots"'.
+			' content="'.encode_entities($value).'" />';
+	}
 	else {
 		push @{$metaheaders{$page}}, scrub('<meta name="'.encode_entities($key).
 			'" content="'.encode_entities($value).'" />');