1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
#!/usr/bin/perl
package IkiWiki::Plugin::poll;
use warnings;
use strict;
use IkiWiki 3.00;
use Encode;
sub import {
hook(type => "getsetup", id => "poll", call => \&getsetup);
hook(type => "preprocess", id => "poll", call => \&preprocess);
hook(type => "sessioncgi", id => "poll", call => \&sessioncgi);
}
sub getsetup () {
return
plugin => {
safe => 1,
rebuild => undef,
section => "widget",
},
}
my %pagenum;
sub preprocess (@) {
my %params=(open => "yes", total => "yes", percent => "yes",
expandable => "no", @_);
my $open=IkiWiki::yesno($params{open});
my $showtotal=IkiWiki::yesno($params{total});
my $showpercent=IkiWiki::yesno($params{percent});
my $expandable=IkiWiki::yesno($params{expandable});
$pagenum{$params{page}}++;
my %choices;
my @choices;
my $total=0;
while (@_) {
my $key=shift;
my $value=shift;
next unless $key =~ /^\d+/;
my $num=$key;
$key=shift;
$value=shift;
$choices{$key}=$num;
push @choices, $key;
$total+=$num;
}
my $ret="";
foreach my $choice (@choices) {
if ($open && exists $config{cgiurl}) {
# use POST to avoid robots
$ret.="<form method=\"POST\" action=\"".IkiWiki::cgiurl()."\">\n";
}
my $percent=$total > 0 ? int($choices{$choice} / $total * 100) : 0;
$ret.="<p>\n";
if ($showpercent) {
$ret.="$choice ($percent%)\n";
}
else {
$ret.="$choice ($choices{$choice})\n";
}
if ($open && exists $config{cgiurl}) {
$ret.="<input type=\"hidden\" name=\"do\" value=\"poll\" />\n";
$ret.="<input type=\"hidden\" name=\"num\" value=\"$pagenum{$params{page}}\" />\n";
$ret.="<input type=\"hidden\" name=\"page\" value=\"$params{page}\" />\n";
$ret.="<input type=\"hidden\" name=\"choice\" value=\"$choice\" />\n";
$ret.="<input type=\"submit\" value=\"".gettext("vote")."\" />\n";
}
$ret.="</p>\n<hr class=poll align=left width=\"$percent%\"/>\n";
if ($open && exists $config{cgiurl}) {
$ret.="</form>\n";
}
}
if ($expandable && $open && exists $config{cgiurl}) {
$ret.="<p>\n";
$ret.="<form method=\"POST\" action=\"".IkiWiki::cgiurl()."\">\n";
$ret.="<input type=\"hidden\" name=\"do\" value=\"poll\" />\n";
$ret.="<input type=\"hidden\" name=\"num\" value=\"$pagenum{$params{page}}\" />\n";
$ret.="<input type=\"hidden\" name=\"page\" value=\"$params{page}\" />\n";
$ret.=gettext("Write in").": <input name=\"choice\" size=50 />\n";
$ret.="<input type=\"submit\" value=\"".gettext("vote")."\" />\n";
$ret.="</form>\n";
$ret.="</p>\n";
}
if ($showtotal) {
$ret.="<span>".gettext("Total votes:")." $total</span>\n";
}
return "<div class=poll>$ret</div>";
}
sub sessioncgi ($$) {
my $cgi=shift;
my $session=shift;
if (defined $cgi->param('do') && $cgi->param('do') eq "poll") {
my $choice=decode_utf8($cgi->param('choice'));
if (! defined $choice || not length $choice) {
error("no choice specified");
}
my $num=$cgi->param('num');
if (! defined $num) {
error("no num specified");
}
my $page=IkiWiki::possibly_foolish_untaint($cgi->param('page'));
if (! defined $page || ! exists $pagesources{$page}) {
error("bad page name");
}
# Did they vote before? If so, let them change their vote,
# and check for dups.
my $choice_param="poll_choice_${page}_$num";
my $oldchoice=$session->param($choice_param);
if (defined $oldchoice && $oldchoice eq $choice) {
# Same vote; no-op.
IkiWiki::redirect($cgi, urlto($page));
exit;
}
my $prefix=$config{prefix_directives} ? "!poll" : "poll";
my $content=readfile(srcfile($pagesources{$page}));
# Now parse the content, find the right poll,
# and find the choice within it, and increment its number.
# If they voted before, decrement that one.
my $edit=sub {
my $escape=shift;
my $params=shift;
return "\\[[$prefix $params]]" if $escape;
if (--$num == 0) {
if ($params=~s/(^|\s+)(\d+)\s+"?\Q$choice\E"?(\s+|$)/$1.($2+1)." \"$choice\"".$3/se) {
}
elsif ($params=~/expandable=(\w+)/
& &IkiWiki::yesno($1)) {
$choice=~s/["\]\n\r]//g;
$params.=" 1 \"$choice\""
if length $choice;
}
if (defined $oldchoice) {
$params=~s/(^|\s+)(\d+)\s+"?\Q$oldchoice\E"?(\s+|$)/$1.($2-1 >=0 ? $2-1 : 0)." \"$oldchoice\"".$3/se;
}
}
return "[[$prefix $params]]";
};
$content =~ s{(\\?)\[\[\Q$prefix\E\s+([^]]+)\s*\]\]}{$edit->($1, $2)}seg;
# Store their vote, update the page, and redirect to it.
writefile($pagesources{$page}, $config{srcdir}, $content);
$session->param($choice_param, $choice);
IkiWiki::cgi_savesession($session);
$oldchoice=$session->param($choice_param);
if ($config{rcs}) {
IkiWiki::disable_commit_hook();
IkiWiki::rcs_commit(
file => $pagesources{$page},
message => "poll vote ($choice)",
token => IkiWiki::rcs_prepedit($pagesources{$page}),
session => $session,
);
IkiWiki::enable_commit_hook();
IkiWiki::rcs_update();
}
require IkiWiki::Render;
IkiWiki::refresh();
IkiWiki::saveindex();
# Need to set cookie in same http response that does the
# redir.
eval q{use CGI::Cookie};
error($@) if $@;
my $cookie = CGI::Cookie->new(-name=> $session->name, -value=> $session->id);
print $cgi->redirect(-cookie => $cookie,
-url => urlto($page));
exit;
}
}
1
|