2006-11-26 20:46:11 +01:00
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#!/usr/bin/perl
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package IkiWiki::Plugin::poll;
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use warnings;
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use strict;
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use IkiWiki;
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sub import { #{{{
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hook(type => "preprocess", id => "poll", call => \&preprocess);
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hook(type => "cgi", id => "poll", call => \&cgi);
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} # }}}
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sub yesno ($) { #{{{
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my $val=shift;
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return (defined $val && lc($val) eq "yes");
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} #}}}
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my %pagenum;
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sub preprocess (@) { #{{{
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my %params=(open => "yes", total => "yes", percent => "yes", @_);
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my $open=yesno($params{open});
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my $showtotal=yesno($params{total});
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2006-11-26 21:56:46 +01:00
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my $showpercent=yesno($params{percent});
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2006-11-26 20:46:11 +01:00
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$pagenum{$params{page}}++;
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my %choices;
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my @choices;
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my $total=0;
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while (@_) {
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my $key=shift;
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my $value=shift;
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next unless $key =~ /^\d+/;
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my $num=$key;
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$key=shift;
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$value=shift;
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$choices{$key}=$num;
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push @choices, $key;
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$total+=$num;
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}
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my $ret="";
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foreach my $choice (@choices) {
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2006-12-14 20:04:42 +01:00
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if ($open && exists $config{cgiurl}) {
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2006-12-18 17:11:51 +01:00
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# use POST to avoid robots
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$ret.="<form method=\"POST\" action=\"$config{cgiurl}\">\n";
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2006-12-14 20:04:42 +01:00
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}
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2006-11-26 21:23:23 +01:00
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my $percent=$total > 0 ? int($choices{$choice} / $total * 100) : 0;
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2006-12-14 20:04:42 +01:00
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$ret.="<p>\n";
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2006-11-26 21:56:46 +01:00
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if ($showpercent) {
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2006-12-14 20:04:42 +01:00
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$ret.="$choice ($percent%)\n";
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2006-11-26 20:46:11 +01:00
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}
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else {
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2006-12-14 20:04:42 +01:00
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$ret.="$choice ($choices{$choice})\n";
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}
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if ($open && exists $config{cgiurl}) {
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$ret.="<input type=\"hidden\" name=\"do\" value=\"poll\" />\n";
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$ret.="<input type=\"hidden\" name=\"num\" value=\"$pagenum{$params{page}}\" />\n";
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$ret.="<input type=\"hidden\" name=\"page\" value=\"$params{page}\" />\n";
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$ret.="<input type=\"hidden\" name=\"choice\" value=\"$choice\" />\n";
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2006-12-29 05:38:40 +01:00
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$ret.="<input type=\"submit\" value=\"".gettext("vote")."\" />\n";
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2006-11-26 20:46:11 +01:00
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}
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2006-12-14 20:04:42 +01:00
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$ret.="</p>\n<hr class=poll align=left width=\"$percent%\"/>\n";
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2006-11-26 20:46:11 +01:00
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if ($open && exists $config{cgiurl}) {
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2006-12-14 20:04:42 +01:00
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$ret.="</form>\n";
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2006-11-26 20:46:11 +01:00
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}
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}
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if ($showtotal) {
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2006-12-29 05:38:40 +01:00
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$ret.="<span>".gettext("Total votes:")." $total</span>\n";
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2006-11-26 20:46:11 +01:00
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}
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return "<div class=poll>$ret</div>";
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} # }}}
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sub cgi ($) { #{{{
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my $cgi=shift;
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if (defined $cgi->param('do') && $cgi->param('do') eq "poll") {
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my $choice=$cgi->param('choice');
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if (! defined $choice) {
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error("no choice specified");
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}
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my $num=$cgi->param('num');
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if (! defined $num) {
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error("no num specified");
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}
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my $page=IkiWiki::possibly_foolish_untaint($cgi->param('page'));
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if (! defined $page || ! exists $pagesources{$page}) {
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error("bad page name");
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}
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# Did they vote before? If so, let them change their vote,
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# and check for dups.
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my $session=IkiWiki::cgi_getsession();
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my $choice_param="poll_choice_${page}_$num";
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my $oldchoice=$session->param($choice_param);
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if (defined $oldchoice && $oldchoice eq $choice) {
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# Same vote; no-op.
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IkiWiki::redirect($cgi, "$config{url}/".htmlpage($page));
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2006-11-26 21:50:46 +01:00
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exit;
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2006-11-26 20:46:11 +01:00
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}
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my $content=readfile(srcfile($pagesources{$page}));
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# Now parse the content, find the right poll,
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# and find the choice within it, and increment its number.
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# If they voted before, decrement that one.
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my $edit=sub {
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my $escape=shift;
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my $params=shift;
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return "\\[[poll $params]]" if $escape;
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2006-11-26 21:50:46 +01:00
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if (--$num == 0) {
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$params=~s/(^|\s+)(\d+)\s+"?\Q$choice\E"?(\s+|$)/$1.($2+1)." \"$choice\"".$3/se;
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if (defined $oldchoice) {
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2006-11-26 21:53:29 +01:00
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$params=~s/(^|\s+)(\d+)\s+"?\Q$oldchoice\E"?(\s+|$)/$1.($2-1 >=0 ? $2-1 : 0)." \"$oldchoice\"".$3/se;
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2006-11-26 20:46:11 +01:00
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}
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}
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2006-11-26 21:50:46 +01:00
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return "[[poll $params]]";
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2006-11-26 20:46:11 +01:00
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};
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$content =~ s{(\\?)\[\[poll\s+([^]]+)\s*\]\]}{$edit->($1, $2)}seg;
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# Store their vote, update the page, and redirect to it.
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writefile($pagesources{$page}, $config{srcdir}, $content);
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$session->param($choice_param, $choice);
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IkiWiki::cgi_savesession($session);
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$oldchoice=$session->param($choice_param);
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if ($config{rcs}) {
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2007-02-21 09:55:28 +01:00
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disable_commit_hook();
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2006-12-14 20:25:05 +01:00
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IkiWiki::rcs_commit($pagesources{$page}, "poll vote ($choice)",
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2006-11-26 20:46:11 +01:00
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IkiWiki::rcs_prepedit($pagesources{$page}),
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$session->param("name"), $ENV{REMOTE_ADDR});
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2007-02-21 09:55:28 +01:00
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enable_commit_hook();
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rcs_update();
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2006-11-26 20:46:11 +01:00
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}
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2007-02-21 09:55:28 +01:00
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require IkiWiki::Render;
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IkiWiki::refresh();
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IkiWiki::saveindex();
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2006-11-26 20:46:11 +01:00
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# Need to set cookie in same http response that does the
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# redir.
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eval q{use CGI::Cookie};
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error($@) if $@;
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my $cookie = CGI::Cookie->new(-name=> $session->name, -value=> $session->id);
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print $cgi->redirect(-cookie => $cookie,
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-url => "$config{url}/".htmlpage($page));
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exit;
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}
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} #}}}
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1
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