use warnings;
use strict;
-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 => "filter", id => "meta",
- call => \&filter);
- IkiWiki::hook(type => "pagetemplate", id => "meta",
- call => \&pagetemplate);
-} # }}}
-
-sub filter (@) { #{{{
- my %params=@_;
-
- $meta{$params{page}}='';
+use IkiWiki 3.00;
- return $params{content};
-} # }}}
+my %metaheaders;
-sub preprocess (@) { #{{{
- if (! @_) {
- return "";
+sub import {
+ hook(type => "getsetup", id => "meta", call => \&getsetup);
+ hook(type => "needsbuild", id => "meta", call => \&needsbuild);
+ hook(type => "preprocess", id => "meta", call => \&preprocess, scan => 1);
+ hook(type => "pagetemplate", id => "meta", call => \&pagetemplate);
+}
+
+sub getsetup () {
+ return
+ plugin => {
+ safe => 1,
+ rebuild => undef,
+ },
+}
+
+sub needsbuild (@) {
+ my $needsbuild=shift;
+ foreach my $page (keys %pagestate) {
+ if (exists $pagestate{$page}{meta}) {
+ if (exists $pagesources{$page} &&
+ 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 ($$) {
+ if (IkiWiki::Plugin::htmlscrubber->can("sanitize")) {
+ return IkiWiki::Plugin::htmlscrubber::sanitize(
+ content => shift, destpage => shift);
+ }
+ else {
+ return shift;
}
+}
+
+sub safeurl ($) {
+ my $url=shift;
+ if (exists $IkiWiki::Plugin::htmlscrubber::{safe_url_regexp} &&
+ defined $IkiWiki::Plugin::htmlscrubber::safe_url_regexp) {
+ return $url=~/$IkiWiki::Plugin::htmlscrubber::safe_url_regexp/;
+ }
+ else {
+ return 1;
+ }
+}
+
+sub htmlize ($$$) {
+ my $page = shift;
+ my $destpage = shift;
+
+ return IkiWiki::htmlize($page, $destpage, pagetype($pagesources{$page}),
+ IkiWiki::linkify($page, $destpage,
+ IkiWiki::preprocess($page, $destpage, shift)));
+}
+
+sub preprocess (@) {
+ return "" unless @_;
my %params=@_;
my $key=shift;
my $value=$params{$key};
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
+ # 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}.="<link href=\"".encode_entities($value)."\" ".
- join(" ", map { encode_entities($_)."=\"".encode_entities(decode_entities($params{$_}))."\"" } keys %params).
- " />\n";
+ # Metadata collection that needs to happen during the scan pass.
+ if ($key eq 'title') {
+ $pagestate{$page}{meta}{title}=HTML::Entities::encode_numeric($value);
+ # fallthrough
+ }
+ elsif ($key eq 'description') {
+ $pagestate{$page}{meta}{description}=HTML::Entities::encode_numeric($value);
+ # fallthrough
+ }
+ elsif ($key eq 'guid') {
+ $pagestate{$page}{meta}{guid}=HTML::Entities::encode_numeric($value);
+ # fallthrough
+ }
+ elsif ($key eq 'license') {
+ push @{$metaheaders{$page}}, '<link rel="license" href="#page_license" />';
+ $pagestate{$page}{meta}{license}=$value;
+ return "";
+ }
+ elsif ($key eq 'copyright') {
+ push @{$metaheaders{$page}}, '<link rel="copyright" href="#page_copyright" />';
+ $pagestate{$page}{meta}{copyright}=$value;
+ return "";
+ }
+ elsif ($key eq 'link' && ! %params) {
+ # hidden WikiLink
+ add_link($page, $value);
+ return "";
+ }
+ elsif ($key eq 'author') {
+ $pagestate{$page}{meta}{author}=$value;
+ # fallthorough
+ }
+ elsif ($key eq 'authorurl') {
+ $pagestate{$page}{meta}{authorurl}=$value if safeurl($value);
+ # fallthrough
+ }
+ elsif ($key eq 'date') {
+ eval q{use Date::Parse};
+ if (! $@) {
+ my $time = str2time($value);
+ $IkiWiki::pagectime{$page}=$time if defined $time;
}
- else {
- # hidden WikiLink
- push @{$IkiWiki::links{$page}}, $value;
+ }
+ elsif ($key eq 'updated') {
+ eval q{use Date::Parse};
+ if (! $@) {
+ my $time = str2time($value);
+ $pagestate{$page}{meta}{updated}=$time if defined $time;
}
}
- elsif ($key eq 'title') {
- $title{$page}=$value;
+
+ if (! defined wantarray) {
+ # avoid collecting duplicate data during scan pass
+ return;
}
- elsif ($key eq 'permalink') {
- $permalink{$page}=$value;
- $meta{$page}.="<link rel=\"bookmark\" href=\"".encode_entities($value)."\" />\n";
+
+ # Metadata collection that happens only during preprocessing pass.
+ if ($key eq 'permalink') {
+ if (safeurl($value)) {
+ $pagestate{$page}{meta}{permalink}=$value;
+ push @{$metaheaders{$page}}, scrub('<link rel="bookmark" href="'.encode_entities($value).'" />', $destpage);
+ }
}
- else {
- $meta{$page}.="<meta name=\"".encode_entities($key).
- "\" content=\"".encode_entities($value)."\" />\n";
- if ($key eq 'author') {
- $author{$page}=$value;
+ elsif ($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 $stylesheet) {
+ error gettext("stylesheet not found")
+ }
+ push @{$metaheaders{$page}}, '<link href="'.urlto($stylesheet, $page).
+ '" rel="'.encode_entities($rel).
+ '" title="'.encode_entities($title).
+ "\" type=\"text/css\" />";
+ }
+ elsif ($key eq 'openid') {
+ my $delegate=0; # both by default
+ if (exists $params{delegate}) {
+ $delegate = 1 if lc $params{delegate} eq 'openid';
+ $delegate = 2 if lc $params{delegate} eq 'openid2';
+ }
+ if (exists $params{server} && safeurl($params{server})) {
+ push @{$metaheaders{$page}}, '<link href="'.encode_entities($params{server}).
+ '" rel="openid.server" />' if $delegate ne 2;
+ push @{$metaheaders{$page}}, '<link href="'.encode_entities($params{server}).
+ '" rel="openid2.provider" />' if $delegate ne 1;
}
- elsif ($key eq 'authorurl') {
- $authorurl{$page}=$value;
+ if (safeurl($value)) {
+ push @{$metaheaders{$page}}, '<link href="'.encode_entities($value).
+ '" rel="openid.delegate" />' if $delegate ne 2;
+ push @{$metaheaders{$page}}, '<link href="'.encode_entities($value).
+ '" rel="openid2.local_id" />' if $delegate ne 1;
+ }
+ if (exists $params{"xrds-location"} && safeurl($params{"xrds-location"})) {
+ push @{$metaheaders{$page}}, '<meta http-equiv="X-XRDS-Location"'.
+ 'content="'.encode_entities($params{"xrds-location"}).'" />';
}
}
+ elsif ($key eq 'redir') {
+ return "" if $page ne $destpage;
+ my $safe=0;
+ if ($value !~ /^\w+:\/\//) {
+ my ($redir_page, $redir_anchor) = split /\#/, $value;
+
+ my $link=bestlink($page, $redir_page);
+ if (! length $link) {
+ error gettext("redir page not found")
+ }
+ add_depends($page, $link);
+
+ $value=urlto($link, $page);
+ $value.='#'.$redir_anchor if defined $redir_anchor;
+ $safe=1;
+
+ # redir cycle detection
+ $pagestate{$page}{meta}{redir}=$link;
+ my $at=$page;
+ my %seen;
+ while (exists $pagestate{$at}{meta}{redir}) {
+ if ($seen{$at}) {
+ error 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, $destpage);
+ }
+ push @{$metaheaders{$page}}, $redir;
+ }
+ elsif ($key eq 'link') {
+ if (%params) {
+ push @{$metaheaders{$page}}, scrub("<link href=\"".encode_entities($value)."\" ".
+ join(" ", map {
+ encode_entities($_)."=\"".encode_entities(decode_entities($params{$_}))."\""
+ } keys %params).
+ " />\n", $destpage);
+ }
+ }
+ elsif ($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).'" />', $destpage);
+ }
return "";
-} # }}}
+}
-sub pagetemplate (@) { #{{{
+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 $title{$page} && $template->query(name => "title")) {
- $template->param(title => $title{$page});
+ if (exists $metaheaders{$page} && $template->query(name => "meta")) {
+ # avoid duplicate meta lines
+ my %seen;
+ $template->param(meta => join("\n", grep { (! $seen{$_}) && ($seen{$_}=1) } @{$metaheaders{$page}}));
+ }
+ if (exists $pagestate{$page}{meta}{title} && $template->query(name => "title")) {
+ $template->param(title => $pagestate{$page}{meta}{title});
$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");
+
+ foreach my $field (qw{author authorurl permalink}) {
+ $template->param($field => $pagestate{$page}{meta}{$field})
+ if exists $pagestate{$page}{meta}{$field} && $template->query(name => $field);
+ }
+
+ foreach my $field (qw{license copyright}) {
+ if (exists $pagestate{$page}{meta}{$field} && $template->query(name => $field) &&
+ ($page eq $destpage || ! exists $pagestate{$destpage}{meta}{$field} ||
+ $pagestate{$page}{meta}{$field} ne $pagestate{$destpage}{meta}{$field})) {
+ $template->param($field => htmlize($page, $destpage, $pagestate{$page}{meta}{$field}));
+ }
+ }
+}
+
+sub match {
+ my $field=shift;
+ my $page=shift;
-} # }}}
+ # turn glob into a safe regexp
+ my $re=IkiWiki::glob2re(shift);
+
+ my $val;
+ if (exists $pagestate{$page}{meta}{$field}) {
+ $val=$pagestate{$page}{meta}{$field};
+ }
+ elsif ($field eq 'title') {
+ $val = pagetitle($page);
+ }
+
+ if (defined $val) {
+ if ($val=~/^$re$/i) {
+ return IkiWiki::SuccessReason->new("$re matches $field of $page");
+ }
+ else {
+ return IkiWiki::FailReason->new("$re does not match $field of $page");
+ }
+ }
+ else {
+ return IkiWiki::FailReason->new("$page does not have a $field");
+ }
+}
+
+package IkiWiki::PageSpec;
+
+sub match_title ($$;@) {
+ IkiWiki::Plugin::meta::match("title", @_);
+}
+
+sub match_author ($$;@) {
+ IkiWiki::Plugin::meta::match("author", @_);
+}
+
+sub match_authorurl ($$;@) {
+ IkiWiki::Plugin::meta::match("authorurl", @_);
+}
+
+sub match_license ($$;@) {
+ IkiWiki::Plugin::meta::match("license", @_);
+}
+
+sub match_copyright ($$;@) {
+ IkiWiki::Plugin::meta::match("copyright", @_);
+}
1