web commit by JoshTriplett: Remove <ikiroot> placeholder, and make absolute image...

[git.ikiwiki.info.git] / IkiWiki / Plugin / meta.pm

diff --git a/IkiWiki/Plugin/meta.pm b/IkiWiki/Plugin/meta.pm
index 41d096e0ea9cdd440eac14325112d643981944d2..e13f57978b5e3895a4266c0f66d93472f23df6e7 100644 (file)
--- a/IkiWiki/Plugin/meta.pm
+++ b/IkiWiki/Plugin/meta.pm
@@ -8,14 +8,33 @@ use IkiWiki;
 
 my %meta;
 my %title;
+my %permalink;
+my %author;
+my %authorurl;
 
 sub import { #{{{
-       IkiWiki::hook(type => "preprocess", id => "meta", 
-               call => \&preprocess);
-       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}}='';
+
+       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 "";
@@ -26,38 +45,93 @@ sub preprocess (@) { #{{{
        delete $params{$key};
        my $page=$params{page};
        delete $params{page};
+       delete $params{destpage};
+       delete $params{preview};
 
-       eval q{use CGI 'escapeHTML'};
+       eval q{use HTML::Entities};
+       # Always dencode, even if encoding later, since it might not be
+       # fully encoded.
+       $value=decode_entities($value);
 
        if ($key eq 'link') {
                if (%params) {
-                       $meta{$page}='' unless exists $meta{$page};
-                       $meta{$page}.="<link href=\"".escapeHTML($value)."\" ".
-                               join(" ", map { escapeHTML("$_=\"$params{$_}\"") } 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 'title') {
-               $title{$page}=escapeHTML($value);
+               $title{$page}=encode_entities($value);
+       }
+       elsif ($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="'.$stylesheet.
+                       '" rel="'.encode_entities($rel).
+                       '" title="'.encode_entities($title).
+                       "\" style=\"text/css\" />\n";
+       }
+       elsif ($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";
        }
        else {
-               $meta{$page}='' unless exists $meta{$page};
-               $meta{$page}.="<meta name=\"".escapeHTML($key)."\" content=\"".escapeHTML($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 "";
 } # }}}
 
-sub pagetemplate ($$) { #{{{
-        my $page=shift;
-        my $template=shift;
+sub pagetemplate (@) { #{{{
+       my %params=@_;
+        my $page=$params{page};
+        my $template=$params{template};
 
-       $template->param(meta => $meta{$page}) if exists $meta{$page};
-       $template->param(title => $title{$page}) if exists $title{$page};
+       $template->param(meta => $meta{$page})
+               if exists $meta{$page} && $template->query(name => "meta");
+       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");
+       
 } # }}}
 
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