X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/dae0f48e91304afcb6ebe0936360e51b22a56548..844169c9b06830df33ccde8abead015128baa496:/IkiWiki/Plugin/meta.pm diff --git a/IkiWiki/Plugin/meta.pm b/IkiWiki/Plugin/meta.pm index 5bcd65837..b2295923e 100644 --- a/IkiWiki/Plugin/meta.pm +++ b/IkiWiki/Plugin/meta.pm @@ -4,95 +4,324 @@ package IkiWiki::Plugin::meta; use warnings; use strict; -use IkiWiki; +use IkiWiki 3.00; -my %meta; -my %title; -my %permalink; -my %author; -my %authorurl; +my %metaheaders; -sub import { #{{{ - hook(type => "preprocess", id => "meta", call => \&preprocess); - hook(type => "filter", id => "meta", call => \&filter); +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 filter (@) { #{{{ - my %params=@_; - - $meta{$params{page}}=''; +sub getsetup () { + return + plugin => { + safe => 1, + rebuild => undef, + }, +} - return $params{content}; -} # }}} +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 preprocess (@) { #{{{ - if (! @_) { - return ""; +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}.="\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}}, ''; + $pagestate{$page}{meta}{license}=$value; + return ""; + } + elsif ($key eq 'copyright') { + push @{$metaheaders{$page}}, ''; + $pagestate{$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 $time; } - else { - # hidden WikiLink - push @{$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}.="\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('', $destpage); + } } - else { - $meta{$page}.="\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 $stylesheet) { + error gettext("stylesheet not found") } - elsif ($key eq 'authorurl') { - $authorurl{$page}=$value; + push @{$metaheaders{$page}}, '"; + } + elsif ($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}}, '' if $delegate ne 2; + push @{$metaheaders{$page}}, '' if $delegate ne 1; + } + if (safeurl($value)) { + push @{$metaheaders{$page}}, '' if $delegate ne 2; + push @{$metaheaders{$page}}, '' if $delegate ne 1; + } + if (exists $params{"xrds-location"} && safeurl($params{"xrds-location"})) { + push @{$metaheaders{$page}}, ''; } } + elsif ($key eq 'redir') { + return "" if $page ne $destpage; + my $safe=0; + if ($value !~ /^\w+:\/\//) { + my ($redir_page, $redir_anchor) = split /\#/, $value; + + add_depends($page, $redir_page); + my $link=bestlink($page, $redir_page); + if (! length $link) { + error gettext("redir page not found") + } + + $value=urlto($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=""; + if (! $safe) { + $redir=scrub($redir, $destpage); + } + push @{$metaheaders{$page}}, $redir; + } + elsif ($key eq 'link') { + if (%params) { + push @{$metaheaders{$page}}, scrub("\n", $destpage); + } + } + elsif ($key eq 'robots') { + push @{$metaheaders{$page}}, ''; + } + else { + push @{$metaheaders{$page}}, scrub('', $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