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1 package Plack::App::Gruntmaster;
2
3 use 5.014000;
4 use strict;
5 our $VERSION = '5999.000_001';
6
7 use CSS::Minifier::XS;
8 use Encode qw/encode decode/;
9 use File::Slurp qw/read_file/;
10 use JavaScript::Minifier::XS;
11 use JSON::MaybeXS qw/encode_json/;
12 use PerlX::Maybe;
13 use Scope::Upper qw/unwind SUB UP/;
14 use Web::Simple;
15
16 use Gruntmaster::Data;
17 use Plack::App::Gruntmaster::HTML;
18
19 use warnings NONFATAL => 'all';
20 no warnings 'illegalproto';
21 no if $] >= 5.017011, warnings => 'experimental::smartmatch';
22
23 ##################################################
24
25 use constant USER_REGEX => qr/^\w{2,20}$/a;
26
27 use constant CONTENT_TYPES => +{
28 c => 'text/x-csrc',
29 cpp => 'text/x-c++src',
30 cs => 'text/x-csharp', # Used by GNOME. Not in mime.types.
31 go => 'text/plain', # ?
32 hs => 'text/x-haskell',
33 java => 'text/x-java',
34 pas => 'text/x-pascal',
35 pl => 'text/x-perl',
36 py => 'text/x-python',
37 };
38
39 use 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 };
51
52 use constant NOT_FOUND => [404, ['Content-Type' => 'text/plain'], ['Not found']];
53 use constant FORBIDDEN => [401, ['Content-Type' => 'text/plain', 'WWW-Authenticate' => 'Basic realm="Gruntmaster 6000"'], ['Forbidden']];
54
55 sub development() { ($ENV{PLACK_ENV} // 'development') eq 'development' }
56
57 my $env;
58
59 sub db { $env->{'gruntmaster.dbic'} }
60
61 sub remote_user {
62 my $user = $env->{'gruntmaster.user'};
63 $user &&= db->user($user);
64 $user
65 }
66
67 sub admin { remote_user && remote_user->admin }
68 sub contest { db->contest ($_{contest}) }
69 sub problem { db->problem ($_{problem}) }
70 sub job { db->job ($_{job}) }
71 sub user { db->user ($_{user}) }
72
73 sub redirect { [301, ['X-Forever' => 1, 'Location' => $_[0]], []] }
74 sub reply { [200, ['Content-Type' => 'text/plain'], \@_] }
75 sub response {
76 my ($template, $title, $params) = @_;
77 unless ($params) {
78 $params = $title;
79 $title = 'No title';
80 }
81 $params->{time} = time;
82 bless {template => $template, title => $title, params => $params}, __PACKAGE__.'::Response'
83 }
84
85 sub forbid {
86 return if !shift || admin;
87 unwind FORBIDDEN, SUB UP
88 }
89
90 sub dispatch_request{
91 $env = $_[PSGI_ENV];
92 sub (GET) {
93 sub (/css/:theme) {
94 my $theme = $_{theme};
95 return NOT_FOUND unless -e "css/themes/$theme.css";
96 my $css = read_file "css/themes/$theme.css";
97 $css .= read_file $_ for <css/*.css>;
98 my @headers = ('X-Forever' => 1, 'Cache-Control' => 'public, max-age=604800', 'Content-Type' => 'text/css');
99 [200, \@headers, [development ? $css : CSS::Minifier::XS::minify $css]]
100 },
101
102 sub (/js.js) {
103 my $js;
104 $js .= read_file $_ for <js/*.js>;
105 my @headers = ('X-Forever' => 1, 'Cache-Control' => 'public, max-age=604800', 'Content-Type' => 'application/javascript');
106 [200, \@headers, [development ? $js : JavaScript::Minifier::XS::minify $js]]
107 },
108
109 sub (/src/:job) {
110 return NOT_FOUND if !job;
111 forbid job->private || job->problem->private || job->contest && job->contest->private;
112 my @headers = ('X-Forever' => 1, 'Cache-Control' => 'public, max-age=604800', 'Content-Type' => CONTENT_TYPES->{job->format});
113 [200, \@headers, [job->source]]
114 },
115
116 sub (?:contest=) {
117 return NOT_FOUND if !contest;
118 forbid contest->is_pending;
119 response_filter { return shift }
120 },
121
122 sub (?:problem=) {
123 return NOT_FOUND if !problem;
124 forbid problem->is_private;
125 response_filter { return shift }
126 },
127
128 sub () {
129 response_filter {
130 my ($r) = @_;
131 return $r if ref $r ne 'Plack::App::Gruntmaster::Response';
132 return [200, ['Content-Type' => 'application/json', 'X-Forever' => 1], [encode 'UTF-8', encode_json $r->{params}]] if $env->{HTTP_ACCEPT} =~ m,^\s*application/json\s*$,g;
133 my $ret = render $r->{template}, 'en', title => $r->{title}, %{$r->{params}};
134 [200, ['Content-Type' => 'text/html'], [encode 'UTF-8', $ret]]
135 },
136 },
137
138 sub (/st/:contest) {
139 response st => 'Standings', {
140 st => [ contest->standings ],
141 problems => [map { $_->problem } contest->contest_problems],
142 }
143 },
144
145 sub (/ct/:contest/log/st) { redirect "/st/$_{contest}" },
146
147 sub (/us/) { response us => 'Users', {us => db->user_list} },
148 sub (/ct/ + ?:owner~) { response ct => 'Contests', db->contest_list(%_) },
149 sub (/log/ + ?:contest~&:owner~&:page~&:problem~) { response log => 'Job list', {%{db->job_list(%_)}, maybe contest => $_{contest}} },
150 sub (/pb/ + ?:owner~&:contest~) { response pb => 'Problems', {%{db->problem_list(%_)}, maybe contest => $_{contest}} },
151
152 sub (/us/:user) { response us_entry => user->name, db->user_entry($_{user}) },
153 sub (/ct/:contest) { response ct_entry => contest->name, db->contest_entry($_{contest}) },
154 sub (/log/:job) { response log_entry => "Job $_{job}", db->job_entry($_{job}) },
155 sub (/pb/:problem + ?contest~) {
156 my (undef, undef, $contest) = @_;
157 $_{contest} = $contest;
158 return NOT_FOUND if !contest && !problem->is_in_archive || contest && !db->contest_problems->find($_{contest}, $_{problem});
159 forbid problem->is_private;
160 response pb_entry => problem->name, db->problem_entry($_{problem}, $_{contest}, remote_user && remote_user->id);
161 },
162 sub (/sol/:problem) {
163 forbid !problem->is_in_archive;
164 response sol => 'Solution of ' . problem->name, {solution => db->problem($_{problem})->solution};
165 },
166
167 sub (/) { redispatch_to '/index' },
168 sub (/:article) { [200, ['Content-Type' => 'text/html'], [render_article $_{article}, 'en']] }
169 },
170
171 sub (POST) {
172 sub (/action/register + %:username=&:password=&:confirm_password=&:name=&:email=&:phone=&:town=&:university=&:level=) {
173 return reply 'Parameter too long' if grep { length > 200 } values %_;
174 return reply 'Bad username. Allowed characters are letters, digits and underscores, and the username must be between 2 and 20 characters long.' unless $_{username} =~ USER_REGEX;
175 return reply 'Username already in use' if db->user($_{username});
176 return reply 'The two passwords do not match' unless $_{password} eq $_{confirm_password};
177
178 db->users->create({id => $_{username}, name => $_{name}, email => $_{email}, phone => $_{phone}, town => $_{town}, university => $_{university}, level => $_{level}});
179 db->user($_{username})->set_passphrase($_{password});
180
181 reply 'Registered successfully';
182 },
183
184 sub (/action/passwd + %:password=&:new_password=&:confirm_new_password=) {
185 forbid !remote_user;
186 return reply 'Incorrect password' unless remote_user->check_passphrase($_{password});
187 return reply 'The two passwords do not match' unless $_{new_password} eq $_{confirm_new_password};
188 remote_user->set_passphrase($_{new_password});
189 reply 'Password changed successfully';
190 },
191
192 sub (/action/submit + %:problem=&:contest~&:prog_format=&:private~&:source_code~ + *:prog~) {
193 forbid !remote_user;
194 return reply 'This contest has finished' if contest && contest->is_finished;
195 return reply 'This contest has not yet started' if !admin && contest && contest->is_pending;
196 return reply 'Maximum source size is 10KB' if ($_{prog} ? $_{prog}->size : length $_{source_code}) > 10 * 1024;
197 return reply 'You must wait 30 seconds between jobs' if !admin && time <= remote_user->lastjob + 30;
198 remote_user->update({lastjob => time});
199
200 my $prog = $_{prog} ? read_file $_{prog}->path : $_{source_code};
201 unlink $_{prog}->path if $_{prog};
202 db->jobs->create({
203 maybe contest => $_{contest},
204 maybe private => $_{private},
205 date => time,
206 extension => FORMAT_EXTENSION->{$_{prog_format}},
207 format => $_{prog_format},
208 problem => $_{problem},
209 source => $prog,
210 owner => remote_user->id,
211 });
212
213 redirect $_{contest} ? "/log/?contest=$_{contest}" : '/log/';
214 }
215 }
216 }
217
218
219 1;
220 __END__
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