my %copyright;
sub import { #{{{
- hook(type => "preprocess", id => "meta", call => \&preprocess, scan => 1);
- hook(type => "filter", id => "meta", call => \&filter);
+ hook(type => "needsbuild", id => "meta", call => \&needsbuild);
+ hook(type => "preprocess", id => "meta", call => \&preprocess);
hook(type => "pagetemplate", id => "meta", call => \&pagetemplate);
} # }}}
-sub filter (@) { #{{{
- my %params=@_;
-
- $meta{$params{page}}='';
-
- return $params{content};
-} # }}}
+sub needsbuild (@) { #{{{
+ my $needsbuild=shift;
+ foreach my $page (keys %pagestate) {
+ if (exists $pagestate{$page}{meta}) {
+ if (grep { $_ eq $pagesources{$page} } @$needsbuild) {
+ # remove state, it will be re-added
+ # if the preprocessor directive is still
+ # there during the rebuild
+ delete $pagestate{$page}{meta};
+ }
+ }
+ }
+}
sub scrub ($) { #{{{
if (IkiWiki::Plugin::htmlscrubber->can("sanitize")) {
} #}}}
sub preprocess (@) { #{{{
- if (! @_) {
- return "";
- }
+ return "" unless @_;
my %params=@_;
my $key=shift;
my $value=$params{$key};
delete $params{preview};
eval q{use HTML::Entities};
- # Always dencode, even if encoding later, since it might not be
+ # Always decode, even if encoding later, since it might not be
# fully encoded.
$value=decode_entities($value);
- if ($key eq 'link') {
- if (%params) {
- $meta{$page}.=scrub("<link href=\"".encode_entities($value)."\" ".
- join(" ", map { encode_entities($_)."=\"".encode_entities(decode_entities($params{$_}))."\"" } keys %params).
- " />\n");
- }
- else {
- # hidden WikiLink
- push @{$links{$page}}, $value;
- }
- }
- elsif ($key eq 'title') {
+ if ($key eq 'title') {
$title{$page}=HTML::Entities::encode_numeric($value);
}
elsif ($key eq 'permalink') {
$permalink{$page}=$value;
- $meta{$page}.=scrub("<link rel=\"bookmark\" href=\"".encode_entities($value)."\" />\n");
+ push @{$meta{$page}}, scrub('<link rel="bookmark" href="'.encode_entities($value).'" />');
}
elsif ($key eq 'date') {
eval q{use Date::Parse};
if (! length $stylesheet) {
return "[[meta ".gettext("stylesheet not found")."]]";
}
- $meta{$page}.='<link href="'.urlto($stylesheet, $page).
+ push @{$meta{$page}}, '<link href="'.urlto($stylesheet, $page).
'" rel="'.encode_entities($rel).
'" title="'.encode_entities($title).
- "\" type=\"text/css\" />\n";
+ "\" type=\"text/css\" />";
}
elsif ($key eq 'openid') {
if (exists $params{server}) {
- $meta{$page}.='<link href="'.encode_entities($params{server}).
- "\" rel=\"openid.server\" />\n";
+ push @{$meta{$page}}, '<link href="'.encode_entities($params{server}).
+ '" rel="openid.server" />';
}
- $meta{$page}.='<link href="'.encode_entities($value).
- "\" rel=\"openid.delegate\" />\n";
+ push @{$meta{$page}}, '<link href="'.encode_entities($value).
+ '" rel="openid.delegate" />';
}
elsif ($key eq 'license') {
- $meta{$page}.="<link rel=\"license\" href=\"#page_license\" />\n";
- $license{$page}=IkiWiki::linkify($page, $destpage, $value);
+ push @{$meta{$page}}, '<link rel="license" href="#page_license" />';
+ $license{$page}=$value;
}
elsif ($key eq 'copyright') {
- $meta{$page}.="<link rel=\"copyright\" href=\"#page_copyright\" />\n";
- $copyright{$page}=IkiWiki::linkify($page, $destpage, $value);
+ push @{$meta{$page}}, '<link rel="copyright" href="#page_copyright" />';
+ $copyright{$page}=$value;
+ }
+ elsif ($key eq 'redir') {
+ return "" if $page ne $destpage;
+ 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);
+ }
+ push @{$meta{$page}}, $redir;
+ }
+ elsif ($key eq 'link') {
+ return "[[meta ".gettext("link is no longer supported")."]]";
}
else {
- $meta{$page}.=scrub("<meta name=\"".encode_entities($key).
- "\" content=\"".encode_entities($value)."\" />\n");
+ push @{$meta{$page}}, scrub('<meta name="'.encode_entities($key).
+ '" content="'.encode_entities($value).'" />');
if ($key eq 'author') {
$author{$page}=$value;
}
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");
+ if (exists $meta{$page} && $template->query(name => "meta")) {
+ # avoid duplicate meta lines
+ my %seen;
+ $template->param(meta => join("\n", grep { (! $seen{$_}) && ($seen{$_}=1) } @{$meta{$page}}));
+ }
if (exists $title{$page} && $template->query(name => "title")) {
$template->param(title => $title{$page});
$template->param(title_overridden => 1);
if exists $author{$page} && $template->query(name => "author");
$template->param(authorurl => $authorurl{$page})
if exists $authorurl{$page} && $template->query(name => "authorurl");
- $template->param(license => $license{$page})
- if exists $license{$page} && $template->query(name => "license");
- $template->param(copyright => $copyright{$page})
- if exists $copyright{$page} && $template->query(name => "copyright");
-
+
+ if ($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}));
+ }
} # }}}
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