X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/6a986a8a0bd20e82e128ce7e0aa9587437ae8325..cd2ddb57a5a20e308cee912e26f2383733c11b3c:/IkiWiki/Plugin/comments.pm?ds=sidebyside

diff --git a/IkiWiki/Plugin/comments.pm b/IkiWiki/Plugin/comments.pm
index 73f8d6140..833bedf25 100644
--- a/IkiWiki/Plugin/comments.pm
+++ b/IkiWiki/Plugin/comments.pm
@@ -7,105 +7,240 @@ package IkiWiki::Plugin::comments;
 
 use warnings;
 use strict;
-use IkiWiki 2.00;
+use IkiWiki 3.00;
+use Encode;
+use POSIX qw(strftime);
 
 use constant PREVIEW => "Preview";
 use constant POST_COMMENT => "Post comment";
 use constant CANCEL => "Cancel";
 
-sub import { #{{{
+my $postcomment;
+my %commentstate;
+
+sub import {
 	hook(type => "checkconfig", id => 'comments',  call => \&checkconfig);
 	hook(type => "getsetup", id => 'comments',  call => \&getsetup);
+	hook(type => "preprocess", id => '_comment', call => \&preprocess);
 	hook(type => "sessioncgi", id => 'comment', call => \&sessioncgi);
 	hook(type => "htmlize", id => "_comment", call => \&htmlize);
 	hook(type => "pagetemplate", id => "comments", call => \&pagetemplate);
 	hook(type => "cgi", id => "comments", call => \&linkcgi);
 	IkiWiki::loadplugin("inline");
-	IkiWiki::loadplugin("mdwn");
-} # }}}
-
-sub htmlize { # {{{
-	eval q{use IkiWiki::Plugin::mdwn};
-	error($@) if ($@);
-	return IkiWiki::Plugin::mdwn::htmlize(@_)
-} # }}}
+}
 
-sub getsetup () { #{{{
+sub getsetup () {
 	return
 		plugin => {
 			safe => 1,
 			rebuild => 1,
 		},
-		# Pages where comments are shown, but new comments are not
-		# allowed, will show "Comments are closed".
-		comments_shown_pagespec => {
+		comments_pagespec => {
 			type => 'pagespec',
-			example => 'blog/*',
-			default => '',
-			description => 'PageSpec for pages where comments will be shown inline',
+			example => 'blog/* and !*/Discussion',
+			description => 'PageSpec of pages where comments are allowed',
 			link => 'ikiwiki/PageSpec',
 			safe => 1,
 			rebuild => 1,
 		},
-		comments_open_pagespec => {
+		comments_closed_pagespec => {
 			type => 'pagespec',
-			example => 'blog/* and created_after(close_old_comments)',
-			default => '',
-			description => 'PageSpec for pages where new comments can be posted',
+			example => 'blog/controversial or blog/flamewar',
+			description => 'PageSpec of pages where posting new comments is not allowed',
 			link => 'ikiwiki/PageSpec',
 			safe => 1,
 			rebuild => 1,
 		},
 		comments_pagename => {
 			type => 'string',
-			example => 'comment_',
 			default => 'comment_',
 			description => 'Base name for comments, e.g. "comment_" for pages like "sandbox/comment_12"',
-			safe => 0, # manual page moving will required
+			safe => 0, # manual page moving required
 			rebuild => undef,
 		},
 		comments_allowdirectives => {
 			type => 'boolean',
-			default => 0,
 			example => 0,
-			description => 'Allow directives in newly posted comments?',
+			description => 'Interpret directives in comments?',
+			safe => 1,
+			rebuild => 0,
+		},
+		comments_allowauthor => {
+			type => 'boolean',
+			example => 0,
+			description => 'Allow anonymous commenters to set an author name?',
 			safe => 1,
 			rebuild => 0,
 		},
 		comments_commit => {
 			type => 'boolean',
 			example => 1,
-			default => 1,
 			description => 'commit comments to the VCS',
 			# old uncommitted comments are likely to cause
 			# confusion if this is changed
 			safe => 0,
 			rebuild => 0,
 		},
-} #}}}
+}
 
-sub checkconfig () { #{{{
-	$config{comments_commit} = 1 unless defined $config{comments_commit};
+sub checkconfig () {
+	$config{comments_commit} = 1
+		unless defined $config{comments_commit};
+	$config{comments_pagespec} = ''
+		unless defined $config{comments_pagespec};
+	$config{comments_closed_pagespec} = ''
+		unless defined $config{comments_closed_pagespec};
 	$config{comments_pagename} = 'comment_'
 		unless defined $config{comments_pagename};
-} #}}}
+}
 
-# FIXME: logic taken from editpage, should be common code?
-sub getcgiuser ($) { # {{{
-	my $session = shift;
-	my $user = $session->param('name');
-	$user = $ENV{REMOTE_ADDR} unless defined $user;
-	debug("getcgiuser() -> $user");
-	return $user;
-} # }}}
+sub htmlize {
+	my %params = @_;
+	return $params{content};
+}
+
+# FIXME: copied verbatim from meta
+sub safeurl ($) {
+	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 preprocess {
+	my %params = @_;
+	my $page = $params{page};
+
+	my $format = $params{format};
+	if (defined $format && ! exists $IkiWiki::hooks{htmlize}{$format}) {
+		error(sprintf(gettext("unsupported page format %s"), $format));
+	}
+
+	my $content = $params{content};
+	if (! defined $content) {
+		error(gettext("comment must have content"));
+	}
+	$content =~ s/\\"/"/g;
+
+	$content = IkiWiki::filter($page, $params{destpage}, $content);
+
+	if ($config{comments_allowdirectives}) {
+		$content = IkiWiki::preprocess($page, $params{destpage},
+			$content);
+	}
+
+	# no need to bother with htmlize if it's just HTML
+	$content = IkiWiki::htmlize($page, $params{destpage}, $format,
+		$content) if defined $format;
+
+	IkiWiki::run_hooks(sanitize => sub {
+		$content = shift->(
+			page => $page,
+			destpage => $params{destpage},
+			content => $content,
+		);
+	});
+
+	# set metadata, possibly overriding [[!meta]] directives from the
+	# comment itself
+
+	my $commentuser;
+	my $commentip;
+	my $commentauthor;
+	my $commentauthorurl;
+	my $commentopenid;
+	if (defined $params{username}) {
+		$commentuser = $params{username};
+
+		my $oiduser = eval { IkiWiki::openiduser($commentuser) };
+
+		if (defined $oiduser) {
+			# looks like an OpenID
+			$commentauthorurl = $commentuser;
+			$commentauthor = $oiduser;
+			$commentopenid = $commentuser;
+		}
+		else {
+			$commentauthorurl = IkiWiki::cgiurl(
+				do => 'commenter',
+				page => (length $config{userdir}
+					? "$config{userdir}/$commentuser"
+					: "$commentuser"));
+
+			$commentauthor = $commentuser;
+		}
+	}
+	else {
+		if (defined $params{ip}) {
+			$commentip = $params{ip};
+		}
+		$commentauthor = gettext("Anonymous");
+	}
+
+	$commentstate{$page}{commentuser} = $commentuser;
+	$commentstate{$page}{commentopenid} = $commentopenid;
+	$commentstate{$page}{commentip} = $commentip;
+	$commentstate{$page}{commentauthor} = $commentauthor;
+	$commentstate{$page}{commentauthorurl} = $commentauthorurl;
+	if (! defined $pagestate{$page}{meta}{author}) {
+		$pagestate{$page}{meta}{author} = $commentauthor;
+	}
+	if (! defined $pagestate{$page}{meta}{authorurl}) {
+		$pagestate{$page}{meta}{authorurl} = $commentauthorurl;
+	}
+
+	if ($config{comments_allowauthor}) {
+		if (defined $params{claimedauthor}) {
+			$pagestate{$page}{meta}{author} = $params{claimedauthor};
+		}
+
+		if (defined $params{url}) {
+			my $url=$params{url};
+
+			eval q{use URI::Heuristic}; 
+		  	if (! $@) {
+				$url=URI::Heuristic::uf_uristr($url);
+			}
+
+			if (safeurl($url)) {
+				$pagestate{$page}{meta}{authorurl} = $url;
+			}
+		}
+	}
+	else {
+		$pagestate{$page}{meta}{author} = $commentauthor;
+		$pagestate{$page}{meta}{authorurl} = $commentauthorurl;
+	}
+
+	if (defined $params{subject}) {
+		$pagestate{$page}{meta}{title} = $params{subject};
+	}
+
+	if ($params{page} =~ m/\/(\Q$config{comments_pagename}\E\d+)$/) {
+		$pagestate{$page}{meta}{permalink} = urlto(IkiWiki::dirname($params{page}), undef, 1).
+			"#".$params{page};
+	}
+
+	eval q{use Date::Parse};
+	if (! $@) {
+		my $time = str2time($params{date});
+		$IkiWiki::pagectime{$page} = $time if defined $time;
+	}
+
+	return $content;
+}
 
 # This is exactly the same as recentchanges_link :-(
-sub linkcgi ($) { #{{{
+sub linkcgi ($) {
 	my $cgi=shift;
 	if (defined $cgi->param('do') && $cgi->param('do') eq "commenter") {
 
 		my $page=decode_utf8($cgi->param("page"));
-		if (!defined $page) {
+		if (! defined $page) {
 			error("missing page parameter");
 		}
 
@@ -128,29 +263,8 @@ sub linkcgi ($) { #{{{
 	}
 }
 
-# FIXME: basically the same logic as recentchanges
-# returns (author URL, pretty-printed version)
-sub linkuser ($) { # {{{
-	my $user = shift;
-	my $oiduser = eval { IkiWiki::openiduser($user) };
-
-	if (defined $oiduser) {
-		return ($user, $oiduser);
-	}
-	# FIXME: it'd be good to avoid having such a link for anonymous
-	# posts
-	else {
-		return (IkiWiki::cgiurl(
-				do => 'commenter',
-				page => (length $config{userdir}
-					? "$config{userdir}/"
-					: "")
-			).$user, $user);
-	}
-} # }}}
-
 # Mostly cargo-culted from IkiWiki::plugin::editpage
-sub sessioncgi ($$) { #{{{
+sub sessioncgi ($$) {
 	my $cgi=shift;
 	my $session=shift;
 
@@ -164,18 +278,16 @@ sub sessioncgi ($$) { #{{{
 
 	my @buttons = (POST_COMMENT, PREVIEW, CANCEL);
 	my $form = CGI::FormBuilder->new(
-		fields => [qw{do sid page subject body}],
+		fields => [qw{do sid page subject editcontent type author url}],
 		charset => 'utf-8',
 		method => 'POST',
-		required => [qw{body}],
+		required => [qw{editcontent}],
 		javascript => 0,
 		params => $cgi,
 		action => $config{cgiurl},
 		header => 0,
 		table => 0,
-		template => scalar IkiWiki::template_params('comments_form.tmpl'),
-		# wtf does this do in editpage?
-		wikiname => $config{wikiname},
+		template => scalar IkiWiki::template_params('editcomment.tmpl'),
 	);
 
 	IkiWiki::decode_form_utf8($form);
@@ -185,29 +297,52 @@ sub sessioncgi ($$) { #{{{
 		});
 	IkiWiki::decode_form_utf8($form);
 
+	my $type = $form->param('type');
+	if (defined $type && length $type && $IkiWiki::hooks{htmlize}{$type}) {
+		$type = IkiWiki::possibly_foolish_untaint($type);
+	}
+	else {
+		$type = $config{default_pageext};
+	}
+	my @page_types;
+	if (exists $IkiWiki::hooks{htmlize}) {
+		@page_types = grep { ! /^_/ } keys %{$IkiWiki::hooks{htmlize}};
+	}
+
 	$form->field(name => 'do', type => 'hidden');
 	$form->field(name => 'sid', type => 'hidden', value => $session->id,
 		force => 1);
 	$form->field(name => 'page', type => 'hidden');
 	$form->field(name => 'subject', type => 'text', size => 72);
-	$form->field(name => 'body', type => 'textarea', rows => 5,
-		cols => 80);
+	$form->field(name => 'editcontent', type => 'textarea', rows => 10);
+	$form->field(name => "type", value => $type, force => 1,
+		type => 'select', options => \@page_types);
+
+	$form->tmpl_param(username => $session->param('name'));
+
+	if ($config{comments_allowauthor} and
+	    ! defined $session->param('name')) {
+		$form->tmpl_param(allowauthor => 1);
+		$form->field(name => 'author', type => 'text', size => '40');
+		$form->field(name => 'url', type => 'text', size => '40');
+	}
+	else {
+		$form->tmpl_param(allowauthor => 0);
+		$form->field(name => 'author', type => 'hidden', value => '',
+			force => 1);
+		$form->field(name => 'url', type => 'hidden', value => '',
+			force => 1);
+	}
 
 	# The untaint is OK (as in editpage) because we're about to pass
 	# it to file_pruned anyway
 	my $page = $form->field('page');
 	$page = IkiWiki::possibly_foolish_untaint($page);
-	if (!defined $page || !length $page ||
+	if (! defined $page || ! length $page ||
 		IkiWiki::file_pruned($page, $config{srcdir})) {
 		error(gettext("bad page name"));
 	}
 
-	my $allow_directives = $config{comments_allowdirectives};
-	my $commit_comments = $config{comments_commit};
-	my $comments_pagename = $config{comments_pagename};
-
-	# FIXME: is this right? Or should we be using the candidate subpage
-	# (whatever that might mean) as the base URL?
 	my $baseurl = urlto($page, undef, 1);
 
 	$form->title(sprintf(gettext("commenting on %s"),
@@ -217,7 +352,7 @@ sub sessioncgi ($$) { #{{{
 		htmllink($page, $page, 'ikiwiki/formatting',
 			noimageinline => 1,
 			linktext => 'FormattingHelp'),
-			allowdirectives => $allow_directives);
+			allowdirectives => $config{allow_directives});
 
 	if ($form->submitted eq CANCEL) {
 		# bounce back to the page they wanted to comment on, and exit.
@@ -232,34 +367,18 @@ sub sessioncgi ($$) { #{{{
 			$page));
 	}
 
-	if (not pagespec_match($page, $config{comments_open_pagespec},
+	if (pagespec_match($page, $config{comments_closed_pagespec},
 		location => $page)) {
 		error(sprintf(gettext(
 			"comments on page '%s' are closed"),
 			$page));
 	}
 
-	IkiWiki::check_canedit($page . "[postcomment]", $cgi, $session);
-
-	my ($authorurl, $author) = linkuser(getcgiuser($session));
-
-	my $body = $form->field('body') || '';
-	$body =~ s/\r\n/\n/g;
-	$body =~ s/\r/\n/g;
-	$body .= "\n" if $body !~ /\n$/;
-
-	unless ($allow_directives) {
-		# don't allow new-style directives at all
-		$body =~ s/(^|[^\\])\[\[!/$1[[!/g;
-
-		# don't allow [[ unless it begins an old-style
-		# wikilink, if prefix_directives is off
-		$body =~ s/(^|[^\\])\[\[(?![^\n\s\]+]\]\])/$1[[!/g
-			unless $config{prefix_directives};
-	}
-
-	# FIXME: check that the wiki is locked right now, because
-	# if it's not, there are mad race conditions!
+	# Set a flag to indicate that we're posting a comment,
+	# so that postcomment() can tell it should match.
+	$postcomment=1;
+	IkiWiki::check_canedit($page, $cgi, $session);
+	$postcomment=0;
 
 	# FIXME: rather a simplistic way to make the comments...
 	my $i = 0;
@@ -267,32 +386,50 @@ sub sessioncgi ($$) { #{{{
 	my $location;
 	do {
 		$i++;
-		$location = "$page/${comments_pagename}${i}";
+		$location = "$page/$config{comments_pagename}$i";
 	} while (-e "$config{srcdir}/$location._comment");
 
-	my $anchor = "${comments_pagename}${i}";
+	my $content = "[[!_comment format=$type\n";
 
-	IkiWiki::run_hooks(sanitize => sub {
-		$body=shift->(
-			page => $location,
-			destpage => $location,
-			content => $body,
-		);
-	});
+	# FIXME: handling of double quotes probably wrong?
+	if (defined $session->param('name')) {
+		my $username = $session->param('name');
+		$username =~ s/"/"/g;
+		$content .= " username=\"$username\"\n";
+	}
+	elsif (defined $ENV{REMOTE_ADDR}) {
+		my $ip = $ENV{REMOTE_ADDR};
+		if ($ip =~ m/^([.0-9]+)$/) {
+			$content .= " ip=\"$1\"\n";
+		}
+	}
+
+	if ($config{comments_allowauthor}) {
+		my $author = $form->field('author');
+		if (length $author) {
+			$author =~ s/"/"/g;
+			$content .= " claimedauthor=\"$author\"\n";
+		}
+		my $url = $form->field('url');
+		if (length $url) {
+			$url =~ s/"/"/g;
+			$content .= " url=\"$url\"\n";
+		}
+	}
+
+	my $subject = $form->field('subject');
+	if (length $subject) {
+		$subject =~ s/"/"/g;
+		$content .= " subject=\"$subject\"\n";
+	}
 
-	# In this template, the [[!meta]] directives should stay at the end,
-	# so that they will override anything the user specifies. (For
-	# instance, [[!meta author="I can fake the author"]]...)
-	my $content_tmpl = template('comments_comment.tmpl');
-	$content_tmpl->param(author => $author);
-	$content_tmpl->param(authorurl => $authorurl);
-	$content_tmpl->param(subject => $form->field('subject'));
-	$content_tmpl->param(body => $body);
-	$content_tmpl->param(anchor => "$anchor");
-	$content_tmpl->param(permalink => "$baseurl#$anchor");
-	$content_tmpl->param(date => IkiWiki::formattime(time, "%X %x"));
+	$content .= " date=\"" . decode_utf8(strftime('%Y-%m-%dT%H:%M:%SZ', gmtime)) . "\"\n";
 
-	my $content = $content_tmpl->output;
+	my $editcontent = $form->field('editcontent') || '';
+	$editcontent =~ s/\r\n/\n/g;
+	$editcontent =~ s/\r/\n/g;
+	$editcontent =~ s/"/\\"/g;
+	$content .= " content=\"\"\"\n$editcontent\n\"\"\"]]\n";
 
 	# This is essentially a simplified version of editpage:
 	# - the user does not control the page that's created, only the parent
@@ -301,9 +438,9 @@ sub sessioncgi ($$) { #{{{
 	# - this means that if they do, rocks fall and everyone dies
 
 	if ($form->submitted eq PREVIEW) {
-		my $preview = IkiWiki::htmlize($location, $page, 'mdwn',
-				IkiWiki::linkify($page, $page,
-					IkiWiki::preprocess($page, $page,
+		my $preview = IkiWiki::htmlize($location, $page, '_comment',
+				IkiWiki::linkify($location, $page,
+					IkiWiki::preprocess($location, $page,
 						IkiWiki::filter($location,
 							$page, $content),
 						0, 1)));
@@ -312,12 +449,16 @@ sub sessioncgi ($$) { #{{{
 					content => $preview);
 			});
 
-		my $template = template("comments_display.tmpl");
+		my $template = template("comment.tmpl");
 		$template->param(content => $preview);
 		$template->param(title => $form->field('subject'));
 		$template->param(ctime => displaytime(time));
-		$template->param(author => $author);
-		$template->param(authorurl => $authorurl);
+
+		IkiWiki::run_hooks(pagetemplate => sub {
+			shift->(page => $location,
+				destpage => $page,
+				template => $template);
+		});
 
 		$form->tmpl_param(page_preview => $template->output);
 	}
@@ -326,17 +467,29 @@ sub sessioncgi ($$) { #{{{
 	}
 
 	if ($form->submitted eq POST_COMMENT && $form->validate) {
+		IkiWiki::checksessionexpiry($cgi, $session);
+		
+		$postcomment=1;
+		IkiWiki::check_content(content => $form->field('editcontent'),
+			subject => $form->field('subject'),
+			$config{comments_allowauthor} ? (
+				author => $form->field('author'),
+				url => $form->field('url'),
+			) : (),
+			page => $location,
+			cgi => $cgi, session => $session
+		);
+		$postcomment=0;
+		
 		my $file = "$location._comment";
 
-		IkiWiki::checksessionexpiry($session, $cgi->param('sid'));
-
 		# FIXME: could probably do some sort of graceful retry
 		# on error? Would require significant unwinding though
 		writefile($file, $config{srcdir}, $content);
 
 		my $conflict;
 
-		if ($config{rcs} and $commit_comments) {
+		if ($config{rcs} and $config{comments_commit}) {
 			my $message = gettext("Added a comment");
 			if (defined $form->field('subject') &&
 				length $form->field('subject')) {
@@ -362,9 +515,11 @@ sub sessioncgi ($$) { #{{{
 		# breaks it or something
 		error($conflict) if defined $conflict;
 
-		# Bounce back to where we were, but defeat broken caches
-		my $anticache = "?updated=$page/${comments_pagename}${i}";
-		IkiWiki::redirect($cgi, urlto($page, undef, 1).$anticache);
+		# Jump to the new comment on the page.
+		# The trailing question mark tries to avoid broken
+		# caches and get the most recent version of the page.
+		IkiWiki::redirect($cgi, urlto($page, undef, 1)."?updated#$location");
+
 	}
 	else {
 		IkiWiki::showform ($form, \@buttons, $session, $cgi,
@@ -372,62 +527,132 @@ sub sessioncgi ($$) { #{{{
 	}
 
 	exit;
-} #}}}
+}
 
-sub pagetemplate (@) { #{{{
+sub commentsshown ($) {
+	my $page=shift;
+
+	return ! pagespec_match($page, "*/$config{comments_pagename}*",
+	                        location => $page) &&
+	       pagespec_match($page, $config{comments_pagespec},
+	                      location => $page);
+}
+
+sub commentsopen ($) {
+	my $page = shift;
+
+	return length $config{cgiurl} > 0 &&
+	       (! length $config{comments_closed_pagespec} ||
+	        ! pagespec_match($page, $config{comments_closed_pagespec},
+	                         location => $page));
+}
+
+sub pagetemplate (@) {
 	my %params = @_;
 
 	my $page = $params{page};
 	my $template = $params{template};
+	my $shown = ($template->query(name => 'commentslink') ||
+	             $template->query(name => 'commentsurl') ||
+	             $template->query(name => 'atomcommentsurl') ||
+	             $template->query(name => 'comments')) &&
+	            commentsshown($page);
 
 	if ($template->query(name => 'comments')) {
 		my $comments = undef;
-
-		my $comments_pagename = $config{comments_pagename};
-
-		my $open = 0;
-		my $shown = pagespec_match($page,
-			$config{comments_shown_pagespec},
-			location => $page);
-
-		if (pagespec_match($page, "*/${comments_pagename}*",
-				location => $page)) {
-			$shown = 0;
-			$open = 0;
-		}
-
-		if (length $config{cgiurl}) {
-			$open = pagespec_match($page,
-				$config{comments_open_pagespec},
-				location => $page);
-		}
-
 		if ($shown) {
-			eval q{use IkiWiki::Plugin::inline};
-			error($@) if $@;
-
-			my @args = (
-				pages => "internal($page/${comments_pagename}*)",
-				template => 'comments_display',
+			$comments = IkiWiki::preprocess_inline(
+				pages => "internal($page/$config{comments_pagename}*)",
+				template => 'comment',
 				show => 0,
 				reverse => 'yes',
 				page => $page,
 				destpage => $params{destpage},
+				feedfile => 'comments',
+				emptyfeeds => 'no',
 			);
-			$comments = IkiWiki::preprocess_inline(@args);
 		}
 
 		if (defined $comments && length $comments) {
 			$template->param(comments => $comments);
 		}
 
-		if ($open) {
-			my $commenturl = IkiWiki::cgiurl(do => 'comment',
+		if ($shown && commentsopen($page)) {
+			my $addcommenturl = IkiWiki::cgiurl(do => 'comment',
 				page => $page);
-			$template->param(commenturl => $commenturl);
+			$template->param(addcommenturl => $addcommenturl);
+		}
+	}
+
+	if ($template->query(name => 'commentsurl')) {
+		if ($shown) {
+			$template->param(commentsurl =>
+				urlto($page, undef, 1).'#comments');
+		}
+	}
+
+	if ($template->query(name => 'atomcommentsurl') && $config{usedirs}) {
+		if ($shown) {
+			# This will 404 until there are some comments, but I
+			# think that's probably OK...
+			$template->param(atomcommentsurl =>
+				urlto($page, undef, 1).'comments.atom');
 		}
 	}
-} # }}}
+
+	if ($template->query(name => 'commentslink')) {
+		# XXX Would be nice to say how many comments there are in
+		# the link. But, to update the number, blog pages
+		# would have to update whenever comments of any inlines
+		# page are added, which is not currently done.
+		if ($shown) {
+			$template->param(commentslink =>
+				htmllink($page, $params{destpage}, $page,
+					linktext => gettext("Comments"),
+					anchor => "comments",
+					noimageinline => 1));
+		}
+	}
+
+	# everything below this point is only relevant to the comments
+	# themselves
+	if (!exists $commentstate{$page}) {
+		return;
+	}
+
+	if ($template->query(name => 'commentuser')) {
+		$template->param(commentuser =>
+			$commentstate{$page}{commentuser});
+	}
+
+	if ($template->query(name => 'commentopenid')) {
+		$template->param(commentopenid =>
+			$commentstate{$page}{commentopenid});
+	}
+
+	if ($template->query(name => 'commentip')) {
+		$template->param(commentip =>
+			$commentstate{$page}{commentip});
+	}
+
+	if ($template->query(name => 'commentauthor')) {
+		$template->param(commentauthor =>
+			$commentstate{$page}{commentauthor});
+	}
+
+	if ($template->query(name => 'commentauthorurl')) {
+		$template->param(commentauthorurl =>
+			$commentstate{$page}{commentauthorurl});
+	}
+
+	if ($template->query(name => 'removeurl') &&
+	    IkiWiki::Plugin::remove->can("check_canremove") &&
+	    length $config{cgiurl}) {
+		$template->param(removeurl => IkiWiki::cgiurl(do => 'remove',
+			page => $page));
+		$template->param(have_actions => 1);
+	}
+}
 
 package IkiWiki::PageSpec;
 
@@ -435,7 +660,7 @@ sub match_postcomment ($$;@) {
 	my $page = shift;
 	my $glob = shift;
 
-	unless ($page =~ s/\[postcomment\]$//) {
+	if (! $postcomment) {
 		return IkiWiki::FailReason->new("not posting a comment");
 	}
 	return match_glob($page, $glob);