diff options
Diffstat (limited to 'IkiWiki/Plugin/comments.pm')
| -rw-r--r-- | IkiWiki/Plugin/comments.pm | 1067 |
1 files changed, 1067 insertions, 0 deletions
diff --git a/IkiWiki/Plugin/comments.pm b/IkiWiki/Plugin/comments.pm new file mode 100644 index 000000000..1ef79a27a --- /dev/null +++ b/IkiWiki/Plugin/comments.pm @@ -0,0 +1,1067 @@ +#!/usr/bin/perl +# Copyright © 2006-2008 Joey Hess <joey@ikiwiki.info> +# Copyright © 2008 Simon McVittie <http://smcv.pseudorandom.co.uk/> +# Licensed under the GNU GPL, version 2, or any later version published by the +# Free Software Foundation +package IkiWiki::Plugin::comments; + +use warnings; +use strict; +use IkiWiki 3.00; +use Encode; + +use constant PREVIEW => "Preview"; +use constant POST_COMMENT => "Post comment"; +use constant CANCEL => "Cancel"; + +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, + scan => 1); + hook(type => "preprocess", id => 'commentmoderation', call => \&preprocess_moderation); + # here for backwards compatability with old comments + hook(type => "preprocess", id => '_comment', call => \&preprocess); + hook(type => "sessioncgi", id => 'comment', call => \&sessioncgi); + hook(type => "htmlize", id => "_comment", call => \&htmlize); + hook(type => "htmlize", id => "_comment_pending", + call => \&htmlize_pending); + hook(type => "pagetemplate", id => "comments", call => \&pagetemplate); + hook(type => "formbuilder_setup", id => "comments", + call => \&formbuilder_setup); + # Load goto to fix up user page links for logged-in commenters + IkiWiki::loadplugin("goto"); + IkiWiki::loadplugin("inline"); +} + +sub getsetup () { + return + plugin => { + safe => 1, + rebuild => 1, + section => "web", + }, + comments_pagespec => { + type => 'pagespec', + example => 'blog/* and !*/Discussion', + description => 'PageSpec of pages where comments are allowed', + link => 'ikiwiki/PageSpec', + safe => 1, + rebuild => 1, + }, + comments_closed_pagespec => { + type => 'pagespec', + 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', + default => 'comment_', + description => 'Base name for comments, e.g. "comment_" for pages like "sandbox/comment_12"', + safe => 0, # manual page moving required + rebuild => undef, + }, + comments_allowdirectives => { + type => 'boolean', + example => 0, + 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, + description => 'commit comments to the VCS', + # old uncommitted comments are likely to cause + # confusion if this is changed + safe => 0, + rebuild => 0, + }, + comments_allowformats => { + type => 'string', + default => '', + example => 'mdwn txt', + description => 'Restrict formats for comments to (no restriction if empty)', + safe => 1, + rebuild => 0, + }, + +} + +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}; + $config{comments_allowformats} = '' + unless defined $config{comments_allowformats}; +} + +sub htmlize { + my %params = @_; + return $params{content}; +} + +sub htmlize_pending { + my %params = @_; + return sprintf(gettext("this comment needs %s"), + '<a href="'. + IkiWiki::cgiurl(do => "commentmoderation").'">'. + gettext("moderation").'</a>'); +} + +# FIXME: copied verbatim from meta +sub safeurl ($) { + 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 isallowed ($) { + my $format = shift; + return ! $config{comments_allowformats} || $config{comments_allowformats} =~ /\b$format\b/; +} + +sub preprocess { + my %params = @_; + my $page = $params{page}; + + my $format = $params{format}; + if (defined $format && (! exists $IkiWiki::hooks{htmlize}{$format} || + ! isallowed($format))) { + error(sprintf(gettext("unsupported page format %s"), $format)); + } + + my $content = $params{content}; + if (! defined $content) { + error(gettext("comment must have content")); + } + $content =~ s/\\"/"/g; + + if (defined wantarray) { + if ($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 => $content, + ); + }); + } + else { + IkiWiki::preprocess($page, $params{destpage}, $content, 1); + } + + # 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 = (defined $params{nickname} && length $params{nickname}) ? $params{nickname} : $oiduser; + $commentopenid = $commentuser; + } + else { + $commentauthorurl = IkiWiki::cgiurl( + do => 'goto', + page => IkiWiki::userpage($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; + $commentstate{$page}{commentauthoravatar} = $params{avatar}; + 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}) { + # decode title the same way meta does + eval q{use HTML::Entities}; + $pagestate{$page}{meta}{title} = decode_entities($params{subject}); + } + + if ($params{page} =~ m/\/\Q$config{comments_pagename}\E\d+_/) { + $pagestate{$page}{meta}{permalink} = urlto(IkiWiki::dirname($params{page})). + "#".page_to_id($params{page}); + } + + eval q{use Date::Parse}; + if (! $@) { + my $time = str2time($params{date}); + $IkiWiki::pagectime{$page} = $time if defined $time; + } + + return $content; +} + +sub preprocess_moderation { + my %params = @_; + + $params{desc}=gettext("Comment Moderation") + unless defined $params{desc}; + + if (length $config{cgiurl}) { + return '<a href="'. + IkiWiki::cgiurl(do => 'commentmoderation'). + '">'.$params{desc}.'</a>'; + } + else { + return $params{desc}; + } +} + +sub sessioncgi ($$) { + my $cgi=shift; + my $session=shift; + + my $do = $cgi->param('do'); + if ($do eq 'comment') { + editcomment($cgi, $session); + } + elsif ($do eq 'commentmoderation') { + commentmoderation($cgi, $session); + } + elsif ($do eq 'commentsignin') { + IkiWiki::cgi_signin($cgi, $session); + exit; + } +} + +# Mostly cargo-culted from IkiWiki::plugin::editpage +sub editcomment ($$) { + my $cgi=shift; + my $session=shift; + + IkiWiki::decode_cgi_utf8($cgi); + + eval q{use CGI::FormBuilder}; + error($@) if $@; + + my @buttons = (POST_COMMENT, PREVIEW, CANCEL); + my $form = CGI::FormBuilder->new( + fields => [qw{do sid page subject editcontent type author + email url subscribe anonsubscribe}], + charset => 'utf-8', + method => 'POST', + required => [qw{editcontent}], + javascript => 0, + params => $cgi, + action => IkiWiki::cgiurl(), + header => 0, + table => 0, + template => { template('editcomment.tmpl') }, + ); + + IkiWiki::decode_form_utf8($form); + IkiWiki::run_hooks(formbuilder_setup => sub { + shift->(title => "comment", form => $form, cgi => $cgi, + session => $session, buttons => \@buttons); + }); + IkiWiki::decode_form_utf8($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}) { + foreach my $key (grep { !/^_/ && isallowed($_) } keys %{$IkiWiki::hooks{htmlize}}) { + push @page_types, [$key, $IkiWiki::hooks{htmlize}{$key}{longname} || $key]; + } + } + @page_types=sort @page_types; + + $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 => 'editcontent', type => 'textarea', rows => 10); + $form->field(name => "type", value => $type, force => 1, + type => 'select', options => \@page_types); + + my $username=$session->param('name'); + $form->tmpl_param(username => $username); + + $form->field(name => "subscribe", type => 'hidden'); + $form->field(name => "anonsubscribe", type => 'hidden'); + if (IkiWiki::Plugin::notifyemail->can("subscribe")) { + if (defined $username) { + $form->field(name => "subscribe", type => "checkbox", + options => [gettext("email replies to me")]); + } + elsif (IkiWiki::Plugin::passwordauth->can("anonuser")) { + $form->field(name => "anonsubscribe", type => "checkbox", + options => [gettext("email replies to me")]); + } + } + + if ($config{comments_allowauthor} and + ! defined $session->param('name')) { + $form->tmpl_param(allowauthor => 1); + $form->field(name => 'author', type => 'text', size => '40'); + $form->field(name => 'email', 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 => 'email', type => 'hidden', value => '', + force => 1); + $form->field(name => 'url', type => 'hidden', value => '', + force => 1); + } + + if (! defined $session->param('name')) { + # Make signinurl work and return here. + $form->tmpl_param(signinurl => IkiWiki::cgiurl(do => 'commentsignin')); + $session->param(postsignin => $ENV{QUERY_STRING}); + IkiWiki::cgi_savesession($session); + } + + # The untaint is OK (as in editpage) because we're about to pass + # it to file_pruned and wiki_file_regexp anyway. + my ($page) = $form->field('page')=~/$config{wiki_file_regexp}/; + $page = IkiWiki::possibly_foolish_untaint($page); + if (! defined $page || ! length $page || + IkiWiki::file_pruned($page)) { + error(gettext("bad page name")); + } + + $form->title(sprintf(gettext("commenting on %s"), + IkiWiki::pagetitle(IkiWiki::basename($page)))); + + $form->tmpl_param('helponformattinglink', + htmllink($page, $page, 'ikiwiki/formatting', + noimageinline => 1, + linktext => 'FormattingHelp'), + allowdirectives => $config{allow_directives}); + + if ($form->submitted eq CANCEL) { + # bounce back to the page they wanted to comment on, and exit. + IkiWiki::redirect($cgi, urlto($page)); + exit; + } + + if (not exists $pagesources{$page}) { + error(sprintf(gettext( + "page '%s' doesn't exist, so you can't comment"), + $page)); + } + + if (pagespec_match($page, $config{comments_closed_pagespec}, + location => $page)) { + error(sprintf(gettext( + "comments on page '%s' are closed"), + $page)); + } + + # 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; + + my $content = "[[!comment format=$type\n"; + + if (defined $session->param('name')) { + my $username = $session->param('name'); + $username =~ s/"/"/g; + $content .= " username=\"$username\"\n"; + } + if (defined $session->param('nickname')) { + my $nickname = $session->param('nickname'); + $nickname =~ s/"/"/g; + $content .= " nickname=\"$nickname\"\n"; + } + elsif (defined $session->remote_addr()) { + $content .= " ip=\"".$session->remote_addr()."\"\n"; + } + + if ($config{comments_allowauthor}) { + my $author = $form->field('author'); + if (defined $author && length $author) { + $author =~ s/"/"/g; + $content .= " claimedauthor=\"$author\"\n"; + } + my $url = $form->field('url'); + if (defined $url && length $url) { + $url =~ s/"/"/g; + $content .= " url=\"$url\"\n"; + } + } + + my $avatar=getavatar($session->param('name')); + if (defined $avatar && length $avatar) { + $avatar =~ s/"/"/g; + $content .= " avatar=\"$avatar\"\n"; + } + + my $subject = $form->field('subject'); + if (defined $subject && length $subject) { + $subject =~ s/"/"/g; + } + else { + $subject = "comment ".(num_comments($page, $config{srcdir}) + 1); + } + $content .= " subject=\"$subject\"\n"; + + $content .= " date=\"" . strftime_utf8('%Y-%m-%dT%H:%M:%SZ', gmtime) . "\"\n"; + + my $editcontent = $form->field('editcontent'); + $editcontent="" if ! defined $editcontent; + $editcontent =~ s/\r\n/\n/g; + $editcontent =~ s/\r/\n/g; + $editcontent =~ s/"/\\"/g; + $content .= " content=\"\"\"\n$editcontent\n\"\"\"]]\n"; + + my $location=unique_comment_location($page, $content, $config{srcdir}); + + # This is essentially a simplified version of editpage: + # - the user does not control the page that's created, only the parent + # - it's always a create operation, never an edit + # - this means that conflicts should never happen + # - this means that if they do, rocks fall and everyone dies + + if ($form->submitted eq PREVIEW) { + my $preview=previewcomment($content, $location, $page, time); + IkiWiki::run_hooks(format => sub { + $preview = shift->(page => $page, + content => $preview); + }); + $form->tmpl_param(page_preview => $preview); + } + else { + $form->tmpl_param(page_preview => ""); + } + + if ($form->submitted eq POST_COMMENT && $form->validate) { + IkiWiki::checksessionexpiry($cgi, $session); + + if (IkiWiki::Plugin::notifyemail->can("subscribe")) { + my $subspec="comment($page)"; + if (defined $username && + length $form->field("subscribe")) { + IkiWiki::Plugin::notifyemail::subscribe( + $username, $subspec); + } + elsif (length $form->field("email") && + length $form->field("anonsubscribe")) { + IkiWiki::Plugin::notifyemail::anonsubscribe( + $form->field("email"), $subspec); + } + } + + $postcomment=1; + my $ok=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, + nonfatal => 1, + ); + $postcomment=0; + + if (! $ok) { + $location=unique_comment_location($page, $content, $config{srcdir}, "._comment_pending"); + writefile("$location._comment_pending", $config{srcdir}, $content); + + # Refresh so anything that deals with pending + # comments can be updated. + require IkiWiki::Render; + IkiWiki::refresh(); + IkiWiki::saveindex(); + + IkiWiki::printheader($session); + print IkiWiki::cgitemplate($cgi, gettext(gettext("comment stored for moderation")), + "<p>". + gettext("Your comment will be posted after moderator review"). + "</p>"); + exit; + } + + # FIXME: could probably do some sort of graceful retry + # on error? Would require significant unwinding though + my $file = "$location._comment"; + writefile($file, $config{srcdir}, $content); + + my $conflict; + + if ($config{rcs} and $config{comments_commit}) { + my $message = gettext("Added a comment"); + if (defined $form->field('subject') && + length $form->field('subject')) { + $message = sprintf( + gettext("Added a comment: %s"), + $form->field('subject')); + } + + IkiWiki::rcs_add($file); + IkiWiki::disable_commit_hook(); + $conflict = IkiWiki::rcs_commit_staged( + message => $message, + session => $session, + ); + IkiWiki::enable_commit_hook(); + IkiWiki::rcs_update(); + } + + # Now we need a refresh + require IkiWiki::Render; + IkiWiki::refresh(); + IkiWiki::saveindex(); + + # this should never happen, unless a committer deliberately + # breaks it or something + error($conflict) if defined $conflict; + + # Jump to the new comment on the page. + # The trailing question mark tries to avoid broken + # caches and get the most recent version of the page. + IkiWiki::redirect($cgi, urlto($page). + "?updated#".page_to_id($location)); + + } + else { + IkiWiki::showform($form, \@buttons, $session, $cgi, + page => $page); + } + + exit; +} + +sub getavatar ($) { + my $user=shift; + return undef unless defined $user; + + my $avatar; + eval q{use Libravatar::URL}; + if (! $@) { + my $oiduser = eval { IkiWiki::openiduser($user) }; + my $https=defined $config{url} && $config{url}=~/^https:/; + + if (defined $oiduser) { + eval { + $avatar = libravatar_url(openid => $user, https => $https); + } + } + if (! defined $avatar && + (my $email = IkiWiki::userinfo_get($user, 'email'))) { + eval { + $avatar = libravatar_url(email => $email, https => $https); + } + } + } + return $avatar; +} + + +sub commentmoderation ($$) { + my $cgi=shift; + my $session=shift; + + IkiWiki::needsignin($cgi, $session); + if (! IkiWiki::is_admin($session->param("name"))) { + error(gettext("you are not logged in as an admin")); + } + + IkiWiki::decode_cgi_utf8($cgi); + + if (defined $cgi->param('sid')) { + IkiWiki::checksessionexpiry($cgi, $session); + + my $rejectalldefer=$cgi->param('rejectalldefer'); + + my %vars=$cgi->Vars; + my $added=0; + foreach my $id (keys %vars) { + if ($id =~ /(.*)\._comment(?:_pending)?$/) { + $id=decode_utf8($id); + my $action=$cgi->param($id); + next if $action eq 'Defer' && ! $rejectalldefer; + + # Make sure that the id is of a legal + # pending comment. + my ($f) = $id =~ /$config{wiki_file_regexp}/; + if (! defined $f || ! length $f || + IkiWiki::file_pruned($f)) { + error("illegal file"); + } + + my $page=IkiWiki::dirname($f); + my $file="$config{srcdir}/$f"; + my $filedir=$config{srcdir}; + if (! -e $file) { + # old location + $file="$config{wikistatedir}/comments_pending/".$f; + $filedir="$config{wikistatedir}/comments_pending"; + } + + if ($action eq 'Accept') { + my $content=eval { readfile($file) }; + next if $@; # file vanished since form was displayed + my $dest=unique_comment_location($page, $content, $config{srcdir})."._comment"; + writefile($dest, $config{srcdir}, $content); + if ($config{rcs} and $config{comments_commit}) { + IkiWiki::rcs_add($dest); + } + $added++; + } + + require IkiWiki::Render; + IkiWiki::prune($file, $filedir); + } + } + + if ($added) { + my $conflict; + if ($config{rcs} and $config{comments_commit}) { + my $message = gettext("Comment moderation"); + IkiWiki::disable_commit_hook(); + $conflict=IkiWiki::rcs_commit_staged( + message => $message, + session => $session, + ); + IkiWiki::enable_commit_hook(); + IkiWiki::rcs_update(); + } + + # Now we need a refresh + require IkiWiki::Render; + IkiWiki::refresh(); + IkiWiki::saveindex(); + + error($conflict) if defined $conflict; + } + } + + my @comments=map { + my ($id, $dir, $ctime)=@{$_}; + my $content=readfile("$dir/$id"); + my $preview=previewcomment($content, $id, + $id, $ctime); + { + id => $id, + view => $preview, + } + } sort { $b->[2] <=> $a->[2] } comments_pending(); + + my $template=template("commentmoderation.tmpl"); + $template->param( + sid => $session->id, + comments => \@comments, + cgiurl => IkiWiki::cgiurl(), + ); + IkiWiki::printheader($session); + my $out=$template->output; + IkiWiki::run_hooks(format => sub { + $out = shift->(page => "", content => $out); + }); + print IkiWiki::cgitemplate($cgi, gettext("comment moderation"), $out); + exit; +} + +sub formbuilder_setup (@) { + my %params=@_; + + my $form=$params{form}; + if ($form->title eq "preferences" && + IkiWiki::is_admin($params{session}->param("name"))) { + push @{$params{buttons}}, "Comment Moderation"; + if ($form->submitted && $form->submitted eq "Comment Moderation") { + commentmoderation($params{cgi}, $params{session}); + } + } +} + +sub comments_pending () { + my @ret; + + eval q{use File::Find}; + error($@) if $@; + eval q{use Cwd}; + error($@) if $@; + my $origdir=getcwd(); + + my $find_comments=sub { + my $dir=shift; + my $extension=shift; + return unless -d $dir; + + chdir($dir) || die "chdir $dir: $!"; + + find({ + no_chdir => 1, + wanted => sub { + my $file=decode_utf8($_); + $file=~s/^\.\///; + return if ! length $file || IkiWiki::file_pruned($file) + || -l $_ || -d _ || $file !~ /\Q$extension\E$/; + my ($f) = $file =~ /$config{wiki_file_regexp}/; # untaint + if (defined $f) { + my $ctime=(stat($_))[10]; + push @ret, [$f, $dir, $ctime]; + } + } + }, "."); + + chdir($origdir) || die "chdir $origdir: $!"; + }; + + $find_comments->($config{srcdir}, "._comment_pending"); + # old location + $find_comments->("$config{wikistatedir}/comments_pending/", + "._comment"); + + return @ret; +} + +sub previewcomment ($$$) { + my $content=shift; + my $location=shift; + my $page=shift; + my $time=shift; + + # Previewing a comment should implicitly enable comment posting mode. + my $oldpostcomment=$postcomment; + $postcomment=1; + + my $preview = IkiWiki::htmlize($location, $page, '_comment', + IkiWiki::linkify($location, $page, + IkiWiki::preprocess($location, $page, + IkiWiki::filter($location, $page, $content), 0, 1))); + + my $template = template("comment.tmpl"); + $template->param(content => $preview); + $template->param(ctime => displaytime($time, undef, 1)); + $template->param(html5 => $config{html5}); + + IkiWiki::run_hooks(pagetemplate => sub { + shift->(page => $location, + destpage => $page, + template => $template); + }); + + $template->param(have_actions => 0); + + $postcomment=$oldpostcomment; + + return $template->output; +} + +sub commentsshown ($) { + my $page=shift; + + return pagespec_match($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 $comments = undef; + if ($shown) { + $comments = IkiWiki::preprocess_inline( + pages => "comment($page) and !comment($page/*)", + template => 'comment', + show => 0, + reverse => 'yes', + page => $page, + destpage => $params{destpage}, + feedfile => 'comments', + emptyfeeds => 'no', + ); + } + + if (defined $comments && length $comments) { + $template->param(comments => $comments); + } + + if ($shown && commentsopen($page)) { + $template->param(addcommenturl => addcommenturl($page)); + } + } + + if ($shown) { + if ($template->query(name => 'commentsurl')) { + $template->param(commentsurl => + urlto($page).'#comments'); + } + + if ($template->query(name => 'atomcommentsurl') && $config{usedirs}) { + # This will 404 until there are some comments, but I + # think that's probably OK... + $template->param(atomcommentsurl => + urlto($page).'comments.atom'); + } + + if ($template->query(name => 'commentslink')) { + my $num=num_comments($page, $config{srcdir}); + my $link; + if ($num > 0) { + $link = htmllink($page, $params{destpage}, $page, + linktext => sprintf(ngettext("%i comment", "%i comments", $num), $num), + anchor => "comments", + noimageinline => 1 + ); + } + elsif (commentsopen($page)) { + $link = "<a href=\"".addcommenturl($page)."\">". + #translators: Here "Comment" is a verb; + #translators: the user clicks on it to + #translators: post a comment. + gettext("Comment"). + "</a>"; + } + $template->param(commentslink => $link) + if defined $link; + } + } + + # everything below this point is only relevant to the comments + # themselves + if (!exists $commentstate{$page}) { + return; + } + + if ($template->query(name => 'commentid')) { + $template->param(commentid => page_to_id($page)); + } + + 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 => 'commentauthoravatar')) { + $template->param(commentauthoravatar => + $commentstate{$page}{commentauthoravatar}); + } + + if ($template->query(name => 'removeurl') && + IkiWiki::Plugin::remove->can("check_canremove") && + length $config{cgiurl}) { + $template->param(removeurl => IkiWiki::cgiurl(do => 'remove', + page => $page)); + $template->param(have_actions => 1); + } +} + +sub addcommenturl ($) { + my $page=shift; + + return IkiWiki::cgiurl(do => 'comment', page => $page); +} + +sub num_comments ($$) { + my $page=shift; + my $dir=shift; + + my @comments=glob("$dir/$page/$config{comments_pagename}*._comment"); + return int @comments; +} + +sub unique_comment_location ($$$$) { + my $page=shift; + eval q{use Digest::MD5 'md5_hex'}; + error($@) if $@; + my $content_md5=md5_hex(Encode::encode_utf8(shift)); + my $dir=shift; + my $ext=shift || "._comment"; + + my $location; + my $i = num_comments($page, $dir); + do { + $i++; + $location = "$page/$config{comments_pagename}${i}_${content_md5}"; + } while (-e "$dir/$location$ext"); + + return $location; +} + +sub page_to_id ($) { + # Converts a comment page name into a unique, legal html id + # attribute value, that can be used as an anchor to link to the + # comment. + my $page=shift; + + eval q{use Digest::MD5 'md5_hex'}; + error($@) if $@; + + return "comment-".md5_hex(Encode::encode_utf8(($page))); +} + +package IkiWiki::PageSpec; + +sub match_postcomment ($$;@) { + my $page = shift; + my $glob = shift; + + if (! $postcomment) { + return IkiWiki::FailReason->new("not posting a comment"); + } + return match_glob($page, $glob, @_); +} + +sub match_comment ($$;@) { + my $page = shift; + my $glob = shift; + + if (! $postcomment) { + # To see if it's a comment, check the source file type. + # Deal with comments that were just deleted. + my $source=exists $IkiWiki::pagesources{$page} ? + $IkiWiki::pagesources{$page} : + $IkiWiki::delpagesources{$page}; + my $type=defined $source ? IkiWiki::pagetype($source) : undef; + if (! defined $type || $type ne "_comment") { + return IkiWiki::FailReason->new("$page is not a comment"); + } + } + + return match_glob($page, "$glob/*", internal => 1, @_); +} + +sub match_comment_pending ($$;@) { + my $page = shift; + my $glob = shift; + + my $source=exists $IkiWiki::pagesources{$page} ? + $IkiWiki::pagesources{$page} : + $IkiWiki::delpagesources{$page}; + my $type=defined $source ? IkiWiki::pagetype($source) : undef; + if (! defined $type || $type ne "_comment_pending") { + return IkiWiki::FailReason->new("$page is not a pending comment"); + } + + return match_glob($page, "$glob/*", internal => 1, @_); +} + +1 |