477 lines
13 KiB
Perl
477 lines
13 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 => "refresh", id => "editpage", call => \&refresh);
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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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section => "core",
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},
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}
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sub refresh () {
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if (exists $wikistate{editpage} && exists $wikistate{editpage}{previews}) {
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# Expire old preview files after one hour.
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my $expire=time - (60 * 60);
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my @previews;
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foreach my $file (@{$wikistate{editpage}{previews}}) {
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my $mtime=(stat("$config{destdir}/$file"))[9];
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if (defined $mtime && $mtime <= $expire) {
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# Avoid deleting a preview that was later saved.
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my $delete=1;
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foreach my $page (keys %renderedfiles) {
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if (grep { $_ eq $file } @{$renderedfiles{$page}}) {
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$delete=0;
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}
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}
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if ($delete) {
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debug(sprintf(gettext("removing old preview %s"), $file));
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IkiWiki::prune("$config{destdir}/$file", $config{destdir});
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}
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}
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elsif (defined $mtime) {
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push @previews, $file;
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}
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}
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$wikistate{editpage}{previews}=\@previews;
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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 function below.
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package IkiWiki;
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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
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editmessage subscribe);
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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 => $q,
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action => IkiWiki::cgiurl(),
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header => 0,
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table => 0,
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template => { template("editpage.tmpl") },
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);
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decode_form_utf8($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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if (! defined $page) {
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error(gettext("bad page name"));
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}
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$page=possibly_foolish_untaint($page);
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my $absolute=($page =~ s#^/+##); # absolute name used to force location
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if (! defined $page || ! length $page ||
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file_pruned($page)) {
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error(gettext("bad page name"));
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}
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my $baseurl = urlto($page);
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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}
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if ! defined $type || $type=~/^_/; # not internal type
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$file=newpagefile($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 => "editmessage", 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("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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my $cansubscribe=IkiWiki::Plugin::notifyemail->can("subscribe")
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&& IkiWiki::Plugin::comments->can("import")
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&& defined $session->param('name');
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if ($cansubscribe) {
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$form->field(name => "subscribe", type => "checkbox",
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options => [gettext("email comments to me")]);
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}
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else {
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$form->field(name => "subscribe", type => 'hidden');
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}
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my $previewing=0;
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if ($form->submitted eq "Cancel") {
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if ($form->field("do") eq "create" && defined $from) {
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redirect($q, urlto($from));
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}
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elsif ($form->field("do") eq "create") {
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redirect($q, baseurl(undef));
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}
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else {
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redirect($q, $baseurl);
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}
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exit;
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}
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elsif ($form->submitted eq "Preview") {
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$previewing=1;
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my $new=not exists $pagesources{$page};
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# temporarily record its type
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$pagesources{$page}=$page.".".$type if $new;
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my %wasrendered=map { $_ => 1 } @{$renderedfiles{$page}};
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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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# Previewing may have created files on disk.
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# Keep a list of these to be deleted later.
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my %previews = map { $_ => 1 } @{$wikistate{editpage}{previews}};
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foreach my $f (@{$renderedfiles{$page}}) {
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$previews{$f}=1 unless $wasrendered{$f};
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}
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# Throw out any other state changes made during previewing,
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# and save the previews list.
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loadindex();
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@{$wikistate{editpage}{previews}} = keys %previews;
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saveindex();
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}
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elsif ($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) ||
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$absolute ||
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$form->submitted) {
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@page_locs=$best_loc=$page;
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unshift @page_locs, lc($page)
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if ! $form->submitted && lc($page) ne $page;
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}
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elsif (lc $page eq lc $config{discussionpage}) {
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@page_locs=$best_loc="$from/".lc($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') &&
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length $form->field('subpage'))) {
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$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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my $mixedcase=lc($page) ne $page;
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push @page_locs, $dir.lc($page) if $mixedcase;
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push @page_locs, $dir.$page;
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push @page_locs, $from."/".lc($page) if $mixedcase;
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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, $dir.lc($page) if $mixedcase;
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push @page_locs, $dir.$page;
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}
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my $userpage=IkiWiki::userpage($page);
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push @page_locs, $userpage
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if ! grep { $_ eq $userpage } @page_locs;
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}
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@page_locs = grep {
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! exists $pagecase{lc $_}
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} @page_locs;
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if (! @page_locs) {
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# hmm, someone else made the page in the
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# meantime?
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if ($previewing) {
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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, $baseurl);
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exit;
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}
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}
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my @editable_locs = grep {
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check_canedit($_, $q, $session, 1)
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} @page_locs;
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if (! @editable_locs) {
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# now let it throw an error, or prompt for
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# login
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map { check_canedit($_, $q, $session) }
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($best_loc, @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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foreach my $key (grep { !/^_/ } keys %{$hooks{htmlize}}) {
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push @page_types, [$key, $hooks{htmlize}{$key}{longname} || $key];
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}
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}
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@page_types=sort @page_types;
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$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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$form->title(sprintf(gettext("creating %s"), pagetitle(basename($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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$form->title(sprintf(gettext("editing %s"), pagetitle(basename($page))));
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}
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showform($form, \@buttons, $session, $q, page => $page);
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}
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else {
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# save page
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check_canedit($page, $q, $session);
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checksessionexpiry($q, $session);
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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,
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page => $page);
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exit;
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}
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elsif ($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,
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page => $page);
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exit;
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}
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my $message="";
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if (defined $form->field('editmessage') &&
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length $form->field('editmessage')) {
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$message=$form->field('editmessage');
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}
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my $content=$form->field('editcontent');
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check_content(content => $content, page => $page,
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cgi => $q, session => $session,
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subject => $message);
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run_hooks(editcontent => sub {
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$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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# save $@ in case a called function clobbers it
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my $error = $@;
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$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 => $error);
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$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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page => $page);
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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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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(
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file => $file,
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message => $message,
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token => $form->field("rcsinfo"),
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session => $session,
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);
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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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page => $page);
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}
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else {
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# The trailing question mark tries to avoid broken
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# caches and get the most recent version of the page.
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redirect($q, $baseurl."?updated");
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}
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if ($cansubscribe && length $form->field("subscribe")) {
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my $subspec="comment($page)";
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IkiWiki::Plugin::notifyemail::subscribe(
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$session->param('name'), $subspec);
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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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