429 lines
12 KiB
Perl
429 lines
12 KiB
Perl
#!/usr/bin/perl
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package IkiWiki::Plugin::editpage;
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use warnings;
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use strict;
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use IkiWiki;
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use open qw{:utf8 :std};
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sub import { #{{{
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hook(type => "getsetup", id => "editpage", call => \&getsetup);
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hook(type => "sessioncgi", id => "editpage", call => \&IkiWiki::cgi_editpage);
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} # }}}
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sub getsetup () { #{{{
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return
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plugin => {
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safe => 1,
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rebuild => 1,
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},
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} #}}}
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# Back to ikiwiki namespace for the rest, this code is very much
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# internal to ikiwiki even though it's separated into a plugin,
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# and other plugins use the functions below.
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package IkiWiki;
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sub check_canedit ($$$;$) { #{{{
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my $page=shift;
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my $q=shift;
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my $session=shift;
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my $nonfatal=shift;
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my $canedit;
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run_hooks(canedit => sub {
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return if defined $canedit;
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my $ret=shift->($page, $q, $session);
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if (defined $ret) {
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if ($ret eq "") {
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$canedit=1;
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}
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elsif (ref $ret eq 'CODE') {
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$ret->() unless $nonfatal;
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$canedit=0;
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}
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elsif (defined $ret) {
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error($ret) unless $nonfatal;
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$canedit=0;
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}
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}
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});
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return $canedit;
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} #}}}
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sub cgi_editpage ($$) { #{{{
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my $q=shift;
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my $session=shift;
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my $do=$q->param('do');
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return unless $do eq 'create' || $do eq 'edit';
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decode_cgi_utf8($q);
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my @fields=qw(do rcsinfo subpage from page type editcontent comments);
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my @buttons=("Save Page", "Preview", "Cancel");
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eval q{use CGI::FormBuilder};
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error($@) if $@;
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my $form = CGI::FormBuilder->new(
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fields => \@fields,
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charset => "utf-8",
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method => 'POST',
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required => [qw{editcontent}],
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javascript => 0,
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params => $q,
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action => $config{cgiurl},
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header => 0,
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table => 0,
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template => scalar template_params("editpage.tmpl"),
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wikiname => $config{wikiname},
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);
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decode_form_utf8($form);
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run_hooks(formbuilder_setup => sub {
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shift->(form => $form, cgi => $q, session => $session,
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buttons => \@buttons);
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});
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decode_form_utf8($form);
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# This untaint is safe because we check file_pruned and
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# wiki_file_regexp.
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my ($page)=$form->field('page')=~/$config{wiki_file_regexp}/;
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$page=possibly_foolish_untaint($page);
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my $absolute=($page =~ s#^/+##);
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if (! defined $page || ! length $page ||
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file_pruned($page, $config{srcdir})) {
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error("bad page name");
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}
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my $baseurl = urlto($page, undef, 1);
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my $from;
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if (defined $form->field('from')) {
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($from)=$form->field('from')=~/$config{wiki_file_regexp}/;
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}
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my $file;
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my $type;
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if (exists $pagesources{$page} && $form->field("do") ne "create") {
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$file=$pagesources{$page};
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$type=pagetype($file);
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if (! defined $type || $type=~/^_/) {
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error(sprintf(gettext("%s is not an editable page"), $page));
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}
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if (! $form->submitted) {
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$form->field(name => "rcsinfo",
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value => rcs_prepedit($file), force => 1);
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}
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$form->field(name => "editcontent", validate => '/.*/');
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}
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else {
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$type=$form->param('type');
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if (defined $type && length $type && $hooks{htmlize}{$type}) {
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$type=possibly_foolish_untaint($type);
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}
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elsif (defined $from && exists $pagesources{$from}) {
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# favor the type of linking page
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$type=pagetype($pagesources{$from});
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}
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$type=$config{default_pageext} unless defined $type;
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$file=$page.".".$type;
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if (! $form->submitted) {
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$form->field(name => "rcsinfo", value => "", force => 1);
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}
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$form->field(name => "editcontent", validate => '/.+/');
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}
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$form->field(name => "do", type => 'hidden');
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$form->field(name => "sid", type => "hidden", value => $session->id,
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force => 1);
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$form->field(name => "from", type => 'hidden');
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$form->field(name => "rcsinfo", type => 'hidden');
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$form->field(name => "subpage", type => 'hidden');
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$form->field(name => "page", value => $page, force => 1);
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$form->field(name => "type", value => $type, force => 1);
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$form->field(name => "comments", type => "text", size => 80);
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$form->field(name => "editcontent", type => "textarea", rows => 20,
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cols => 80);
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$form->tmpl_param("can_commit", $config{rcs});
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$form->tmpl_param("indexlink", indexlink());
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$form->tmpl_param("helponformattinglink",
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htmllink($page, $page, "ikiwiki/formatting",
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noimageinline => 1,
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linktext => "FormattingHelp"));
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if ($form->submitted eq "Cancel") {
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if ($form->field("do") eq "create" && defined $from) {
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redirect($q, urlto($from, undef, 1));
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}
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elsif ($form->field("do") eq "create") {
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redirect($q, $config{url});
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}
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else {
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redirect($q, urlto($page, undef, 1));
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}
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exit;
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}
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elsif ($form->submitted eq "Preview") {
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my $new=not exists $pagesources{$page};
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if ($new) {
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# temporarily record its type
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$pagesources{$page}=$page.".".$type;
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}
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my $content=$form->field('editcontent');
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run_hooks(editcontent => sub {
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$content=shift->(
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content => $content,
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page => $page,
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cgi => $q,
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session => $session,
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);
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});
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my $preview=htmlize($page, $page, $type,
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linkify($page, $page,
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preprocess($page, $page,
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filter($page, $page, $content), 0, 1)));
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run_hooks(format => sub {
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$preview=shift->(
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page => $page,
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content => $preview,
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);
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});
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$form->tmpl_param("page_preview", $preview);
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if ($new) {
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delete $pagesources{$page};
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}
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# previewing may have created files on disk
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saveindex();
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}
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elsif ($form->submitted eq "Save Page") {
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$form->tmpl_param("page_preview", "");
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}
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if ($form->submitted ne "Save Page" || ! $form->validate) {
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if ($form->field("do") eq "create") {
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my @page_locs;
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my $best_loc;
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if (! defined $from || ! length $from ||
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$from ne $form->field('from') ||
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file_pruned($from, $config{srcdir}) ||
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$from=~/^\// ||
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$absolute ||
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$form->submitted eq "Preview") {
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@page_locs=$best_loc=$page;
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}
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else {
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my $dir=$from."/";
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$dir=~s![^/]+/+$!!;
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if ((defined $form->field('subpage') && length $form->field('subpage')) ||
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$page eq gettext('discussion')) {
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$best_loc="$from/$page";
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}
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else {
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$best_loc=$dir.$page;
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}
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push @page_locs, $dir.$page;
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push @page_locs, "$from/$page";
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while (length $dir) {
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$dir=~s![^/]+/+$!!;
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push @page_locs, $dir.$page;
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}
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push @page_locs, "$config{userdir}/$page"
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if length $config{userdir};
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}
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@page_locs = grep {
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! exists $pagecase{lc $_}
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} @page_locs;
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if (! @page_locs) {
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# hmm, someone else made the page in the
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# meantime?
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if ($form->submitted eq "Preview") {
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# let them go ahead with the edit
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# and resolve the conflict at save
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# time
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@page_locs=$page;
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}
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else {
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redirect($q, urlto($page, undef, 1));
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exit;
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}
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}
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my @editable_locs = grep {
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check_canedit($_, $q, $session, 1)
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} @page_locs;
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if (! @editable_locs) {
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# let it throw an error this time
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map { check_canedit($_, $q, $session) } @page_locs;
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}
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my @page_types;
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if (exists $hooks{htmlize}) {
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@page_types=grep { !/^_/ }
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keys %{$hooks{htmlize}};
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}
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$form->tmpl_param("page_select", 1);
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$form->field(name => "page", type => 'select',
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options => [ map { [ $_, pagetitle($_, 1) ] } @editable_locs ],
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value => $best_loc);
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$form->field(name => "type", type => 'select',
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options => \@page_types);
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$form->title(sprintf(gettext("creating %s"), pagetitle($page)));
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}
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elsif ($form->field("do") eq "edit") {
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check_canedit($page, $q, $session);
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if (! defined $form->field('editcontent') ||
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! length $form->field('editcontent')) {
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my $content="";
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if (exists $pagesources{$page}) {
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$content=readfile(srcfile($pagesources{$page}));
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$content=~s/\n/\r\n/g;
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}
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$form->field(name => "editcontent", value => $content,
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force => 1);
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}
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$form->tmpl_param("page_select", 0);
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$form->field(name => "page", type => 'hidden');
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$form->field(name => "type", type => 'hidden');
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$form->title(sprintf(gettext("editing %s"), pagetitle($page)));
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}
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showform($form, \@buttons, $session, $q, forcebaseurl => $baseurl);
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}
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else {
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# save page
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check_canedit($page, $q, $session);
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# The session id is stored on the form and checked to
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# guard against CSRF. But only if the user is logged in,
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# as anonok can allow anonymous edits.
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if (defined $session->param("name")) {
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my $sid=$q->param('sid');
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if (! defined $sid || $sid ne $session->id) {
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error(gettext("Your login session has expired."));
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}
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}
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my $exists=-e "$config{srcdir}/$file";
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if ($form->field("do") ne "create" && ! $exists &&
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! defined srcfile($file, 1)) {
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$form->tmpl_param("message", template("editpagegone.tmpl")->output);
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$form->field(name => "do", value => "create", force => 1);
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$form->tmpl_param("page_select", 0);
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$form->field(name => "page", type => 'hidden');
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$form->field(name => "type", type => 'hidden');
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$form->title(sprintf(gettext("editing %s"), $page));
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showform($form, \@buttons, $session, $q, forcebaseurl => $baseurl);
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exit;
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}
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elsif ($form->field("do") eq "create" && $exists) {
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$form->tmpl_param("message", template("editcreationconflict.tmpl")->output);
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$form->field(name => "do", value => "edit", force => 1);
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$form->tmpl_param("page_select", 0);
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$form->field(name => "page", type => 'hidden');
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$form->field(name => "type", type => 'hidden');
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$form->title(sprintf(gettext("editing %s"), $page));
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$form->field("editcontent",
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value => readfile("$config{srcdir}/$file").
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"\n\n\n".$form->field("editcontent"),
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force => 1);
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showform($form, \@buttons, $session, $q, forcebaseurl => $baseurl);
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exit;
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}
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my $content=$form->field('editcontent');
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run_hooks(editcontent => sub {
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$content=shift->(
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content => $content,
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page => $page,
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cgi => $q,
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session => $session,
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);
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});
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$content=~s/\r\n/\n/g;
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$content=~s/\r/\n/g;
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$content.="\n" if $content !~ /\n$/;
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$config{cgi}=0; # avoid cgi error message
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eval { writefile($file, $config{srcdir}, $content) };
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$config{cgi}=1;
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if ($@) {
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$form->field(name => "rcsinfo", value => rcs_prepedit($file),
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force => 1);
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my $mtemplate=template("editfailedsave.tmpl");
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$mtemplate->param(error_message => $@);
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$form->tmpl_param("message", $mtemplate->output);
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$form->field("editcontent", value => $content, force => 1);
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$form->tmpl_param("page_select", 0);
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$form->field(name => "page", type => 'hidden');
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$form->field(name => "type", type => 'hidden');
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$form->title(sprintf(gettext("editing %s"), $page));
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showform($form, \@buttons, $session, $q,
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forcebaseurl => $baseurl);
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exit;
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}
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my $conflict;
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if ($config{rcs}) {
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my $message="";
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if (defined $form->field('comments') &&
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length $form->field('comments')) {
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$message=$form->field('comments');
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}
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if (! $exists) {
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rcs_add($file);
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}
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# Prevent deadlock with post-commit hook by
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# signaling to it that it should not try to
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# do anything.
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disable_commit_hook();
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$conflict=rcs_commit($file, $message,
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$form->field("rcsinfo"),
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$session->param("name"), $ENV{REMOTE_ADDR});
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enable_commit_hook();
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rcs_update();
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}
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# Refresh even if there was a conflict, since other changes
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# may have been committed while the post-commit hook was
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# disabled.
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require IkiWiki::Render;
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refresh();
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saveindex();
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if (defined $conflict) {
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$form->field(name => "rcsinfo", value => rcs_prepedit($file),
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force => 1);
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$form->tmpl_param("message", template("editconflict.tmpl")->output);
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$form->field("editcontent", value => $conflict, force => 1);
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$form->field("do", "edit", force => 1);
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$form->tmpl_param("page_select", 0);
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$form->field(name => "page", type => 'hidden');
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$form->field(name => "type", type => 'hidden');
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$form->title(sprintf(gettext("editing %s"), $page));
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showform($form, \@buttons, $session, $q,
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forcebaseurl => $baseurl);
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}
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else {
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# The trailing question mark tries to avoid broken
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# caches and get the most recent version of the page.
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redirect($q, urlto($page, undef, 1)."?updated");
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}
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}
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exit;
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} #}}}
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1
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