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1package Plack::App::Gruntmaster;
2
3use 5.014000;
4use strict;
5our $VERSION = '5999.000_001';
6
7use CSS::Minifier::XS;
8use Encode qw/encode decode/;
9use File::Slurp qw/read_file/;
10use JavaScript::Minifier::XS;
11use JSON::MaybeXS qw/encode_json/;
12use PerlX::Maybe;
13use Scope::Upper qw/unwind SUB UP/;
14use Web::Simple;
15
16use Gruntmaster::Data;
17use Plack::App::Gruntmaster::HTML;
18
19use warnings NONFATAL => 'all';
20no warnings 'illegalproto';
21
22##################################################
23
24use constant USER_REGEX => qr/^\w{2,20}$/a;
25
26use constant CONTENT_TYPES => +{
27 c => 'text/x-csrc',
28 cpp => 'text/x-c++src',
29 cs => 'text/x-csharp', # Used by GNOME. Not in mime.types.
30 go => 'text/plain', # ?
31 hs => 'text/x-haskell',
32 java => 'text/x-java',
33 pas => 'text/x-pascal',
34 pl => 'text/x-perl',
35 py => 'text/x-python',
36 l => 'text/plain',
37};
38
39use constant FORMAT_EXTENSION => {
40 C => 'c',
41 CPP => 'cpp',
42 GCCGO => 'go',
43 GOLANG => 'go',
44 HASKELL => 'hs',
45 MONO => 'cs',
46 JAVA => 'java',
47 PASCAL => 'pas',
48 PERL => 'pl',
49 PYTHON => 'py',
50 SBCL => 'l',
51};
52
53use constant NOT_FOUND => [404, ['Content-Type' => 'text/plain'], ['Not found']];
54use constant FORBIDDEN => [401, ['Content-Type' => 'text/plain', 'WWW-Authenticate' => 'Basic realm="Gruntmaster 6000"'], ['Forbidden']];
55
56sub development() { ($ENV{PLACK_ENV} // 'development') eq 'development' }
57
58my ($env, $privacy);
59
60sub db { $env->{'gruntmaster.dbic'} }
61
62sub remote_user {
63 my $user = $env->{'gruntmaster.user'};
64 $user &&= db->user($user);
65 $user
66}
67
68sub admin { remote_user && remote_user->admin }
69sub contest { db->contest ($_{contest}) }
70sub problem { db->problem ($_{problem}) }
71sub job { db->job ($_{job}) }
72sub user { db->user ($_{user}) }
73
74sub redirect { [301, ['X-Forever' => 1, 'Location' => $_[0]], []] }
75sub reply { [200, ['Content-Type' => 'text/plain'], \@_] }
76sub response {
77 my ($template, $title, $params, $maxage) = @_;
78 unless ($params) {
79 $params = $title;
80 $title = 'No title';
81 }
82 $params->{time} = time;
83 $params->{args} = {%_};
84 bless {template => $template, title => $title, params => $params, maxage => ($maxage // 1)}, __PACKAGE__.'::Response'
85}
86
87sub forbid {
88 my ($condition) = @_;
89 $privacy = 'private' if $condition;
90 return if !$condition || admin;
91 unwind FORBIDDEN, SUB UP
92}
93
94sub dispatch_request{
95 $env = $_[PSGI_ENV];
96 $privacy = 'public';
97
98 sub (GET) {
99 sub (/css/:theme) {
100 my $theme = $_{theme};
101 return NOT_FOUND unless -e "css/themes/$theme.css";
102 my $css = read_file "css/themes/$theme.css";
103 $css .= read_file $_ for <css/*.css>;
104 my @headers = ('X-Forever' => 1, 'Cache-Control' => 'public, max-age=604800', 'Content-Type' => 'text/css');
105 [200, \@headers, [development ? $css : CSS::Minifier::XS::minify $css]]
106 },
107
108 sub (/js.js) {
109 my $js;
110 $js .= read_file $_ for <js/*.js>;
111 my @headers = ('X-Forever' => 1, 'Cache-Control' => 'public, max-age=604800', 'Content-Type' => 'application/javascript');
112 [200, \@headers, [development ? $js : JavaScript::Minifier::XS::minify $js]]
113 },
114
115 sub (/src/:job) {
116 return NOT_FOUND if !job;
117 my $isowner = remote_user && remote_user->id eq job->rawowner;
118 my $private = job->private || job->problem->private || job->contest && job->contest->is_running;
119 forbid !$isowner && $private;
120 my $privacy = $private ? 'private' : 'public';
121 my @headers = ('X-Forever' => 1, 'Cache-Control' => "$privacy, max-age=604800", 'Content-Type' => CONTENT_TYPES->{job->format});
122 push @headers, (Vary => 'Authorization') if $private;
123 [200, \@headers, [job->source]]
124 },
125
126 sub (?:contest=) {
127 return NOT_FOUND if !contest;
128 forbid contest->is_pending;
129 response_filter { return shift }
130 },
131
132 sub (?:problem=) {
133 return NOT_FOUND if !problem;
134 forbid problem->is_private;
135 response_filter { return shift }
136 },
137
138 sub (?:format~) {
139 my $format = lc ($_{format} // '');
140 response_filter {
141 my ($r) = @_;
142 return $r if ref $r ne 'Plack::App::Gruntmaster::Response';
143 my @hdrs = ('X-Forever' => 1, 'Cache-Control' => "$privacy, max-age=$r->{maxage}");
144 push @hdrs, Vary => 'Authorization' if $privacy eq 'private';
145 return [200, ['Content-Type' => 'application/json', @hdrs], [encode_json $r->{params}]] if $format eq 'json';
146 my $ret = render $r->{template}, 'en', title => $r->{title}, %{$r->{params}};
147 [200, ['Content-Type' => 'text/html', @hdrs], [encode 'UTF-8', $ret]]
148 },
149 },
150
151 sub (/st/:contest) {
152 response st => 'Standings', {
153 st => [ contest->standings ],
154 problems => [
155 map { [$_->id, $_->name] }
156 sort { $a->value <=> $b->value }
157 map { $_->problem } contest->contest_problems],
158 }, 10
159 },
160
161 sub (/ed/:contest) {
162 forbid contest->is_running;
163 response ed => 'Editorial of ' . contest->name, db->problem_list(contest => $_{contest}, solution => 1);
164 },
165
166 sub (/login) {
167 forbid !remote_user;
168
169 my $return = $env->{HTTP_REFERER} // '/';
170 [303, ['Set-Cookie' => "username=".remote_user->id, Location => $return], []]
171 },
172
173 sub (/ct/:contest/log/st) { redirect "/st/$_{contest}" },
174
175 sub (/us/) { response us => 'Users', {us => db->user_list} },
176 sub (/ct/ + ?:owner~) { response ct => 'Contests', db->contest_list(%_) },
177 sub (/log/ + ?:contest~&:owner~&:page~&:problem~&:private~) {
178 forbid $_{private};
179 response log => 'Job list', {%{db->job_list(%_)}, maybe contest => $_{contest},}
180 },
181 sub (/pb/ + ?:owner~&:contest~&:private~) {
182 forbid $_{private};
183 response pb => 'Problems', {%{db->problem_list(%_)}, maybe contest => $_{contest}}
184 },
185
186 sub (/us/:user) { response us_entry => user->name, db->user_entry($_{user}) },
187 sub (/ct/:contest) { response ct_entry => contest->name, db->contest_entry($_{contest}) },
188 sub (/log/:job) {
189 forbid job->private;
190 response log_entry => "Job $_{job}", db->job_entry($_{job})
191 },
192 sub (/pb/:problem + ?contest~) {
193 my (undef, undef, $contest) = @_;
194 $_{contest} = $contest;
195 return NOT_FOUND if !contest && !problem->is_in_archive || contest && !db->contest_problems->find($_{contest}, $_{problem});
196 forbid problem->is_private;
197 if (contest && contest->is_running) {
198 forbid !remote_user;
199 $privacy = 'private';
200 }
201 response pb_entry => problem->name, {%{db->problem_entry($_{problem}, $_{contest}, remote_user && remote_user->id)}, maybe contest => $_{contest}};
202 },
203 sub (/sol/:problem) {
204 forbid !problem->is_in_archive;
205 response sol => 'Solution of ' . problem->name, {solution => db->problem($_{problem})->solution};
206 },
207
208 sub (/) { redispatch_to '/index' },
209 sub (/favicon.ico) { redirect '/static/favicon.ico' },
210 sub (/:article) { [200, ['Content-Type' => 'text/html', 'Cache-Control' => 'public, max-age=60', 'X-Forever' => 1], [render_article $_{article}, 'en']] }
211 },
212
213 sub (POST) {
214 sub (/action/register + %:username=&:password=&:confirm_password=&:name=&:email=&:phone=&:town=&:university=&:country=&:level=) {
215 return reply 'Parameter too long' if grep { length > 200 } values %_;
216 return reply 'Bad username. Allowed characters are letters, digits and underscores, and the username must be between 2 and 20 characters long.' unless $_{username} =~ USER_REGEX;
217 return reply 'Username already in use' if db->user($_{username});
218 return reply 'The two passwords do not match' unless $_{password} eq $_{confirm_password};
219
220 db->users->create({id => $_{username}, name => $_{name}, email => $_{email}, phone => $_{phone}, town => $_{town}, university => $_{university}, country => $_{country}, level => $_{level}});
221 db->user($_{username})->set_passphrase($_{password});
222
223 purge '/us/';
224 reply 'Registered successfully';
225 },
226
227 sub (/action/passwd + %:password=&:new_password=&:confirm_new_password=) {
228 forbid !remote_user;
229 return reply 'Incorrect password' unless remote_user->check_passphrase($_{password});
230 return reply 'The two passwords do not match' unless $_{new_password} eq $_{confirm_new_password};
231 remote_user->set_passphrase($_{new_password});
232 reply 'Password changed successfully';
233 },
234
235 sub (/action/submit + %:problem=&:contest~&:prog_format=&:source_code~ + *prog~) {
236 my (undef, undef, $prog) = @_;
237 forbid !remote_user;
238 return reply 'This contest has finished' if contest && contest->is_finished;
239 return reply 'This contest has not yet started' if !admin && contest && contest->is_pending;
240 return reply 'This problem does not belong to this contest' if !contest && !problem->is_in_archive || contest && !db->contest_problems->find($_{contest}, $_{problem});
241 return reply 'Maximum source size is 10KB' if ($prog ? $prog->size : length $_{source_code}) > 10 * 1024;
242 return reply 'You must wait 30 seconds between jobs' if !admin && time <= remote_user->lastjob + 30;
243 remote_user->update({lastjob => time});
244
245 my $source = $prog ? read_file $prog->path : $_{source_code};
246 unlink $prog->path if $prog;
247 my $private = (problem->private && !$_{contest}) ? 1 : 0;
248 $private = 1 if contest && contest->is_pending;
249 my $newjob = db->jobs->create({
250 maybe contest => $_{contest},
251 private => $private,
252 date => time,
253 extension => FORMAT_EXTENSION->{$_{prog_format}},
254 format => $_{prog_format},
255 problem => $_{problem},
256 source => $source,
257 owner => remote_user->id,
258 });
259
260 purge '/log/';
261 [303, [Location => '/log/' . $newjob->id], []]
262 }
263 }
264}
265
266
2671;
268__END__
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