lib/Plack/App/Gruntmaster.pm

   1 package Plack::App::Gruntmaster;
   2
   3 use 5.014000;
   4 use strict;
   5 our $VERSION = '5999.000_001';
   6
   7 use Encode qw/encode decode/;
   8 use File::Slurp qw/read_file/;
   9 use JSON::MaybeXS qw/encode_json/;
  10 use PerlX::Maybe;
  11 use Scope::Upper qw/unwind SUB UP/;
  12 use Web::Simple;
  13
  14 use Gruntmaster::Data;
  15 use Plack::App::Gruntmaster::HTML;
  16
  17 use Email::Sender::Simple qw/sendmail/;
  18 use Email::Simple;
  19
  20 use warnings NONFATAL => 'all';
  21 no warnings 'illegalproto';
  22
  23 ##################################################
  24
  25 use constant USER_REGEX => qr/^\w{2,20}$/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         rb => 'application/x-ruby',
  38         l => 'text/plain',
  39 };
  40
  41 use constant FORMAT_EXTENSION => {
  42         C => 'c',
  43         CPP => 'cpp',
  44         GCCGO => 'go',
  45         GOLANG => 'go',
  46         HASKELL => 'hs',
  47         MONO => 'cs',
  48         JAVA => 'java',
  49         PASCAL => 'pas',
  50         PERL => 'pl',
  51         PYTHON => 'py',
  52         RUBY => 'rb',
  53         SBCL => 'l',
  54 };
  55
  56 use constant NOT_FOUND => [404, ['X-Forever' => 1, 'Content-Type' => 'text/plain'], ['Not found']];
  57
  58 my ($env, $privacy);
  59
  60 sub db { $env->{'gruntmaster.dbic'} }
  61
  62 sub remote_user {
  63         my $user = $env->{REMOTE_USER};
  64         $user &&= db->user($user);
  65         $user
  66 }
  67
  68 sub admin   { remote_user && remote_user->admin }
  69 sub contest { db->contest ($_{contest}) }
  70 sub problem { db->problem ($_{problem}) }
  71 sub job     { db->job     ($_{job})     }
  72 sub user    { db->user    ($_{user})    }
  73
  74 sub redirect { [301, ['X-Forever' => 1, 'Cache-Control' => 'public, max-age=86400', 'Location' => $_[0]], []] }
  75 sub reply    { [200, ['Content-Type' => 'text/plain; charset=utf-8'], \@_] }
  76 sub response {
  77         my ($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 // 3600)}, __PACKAGE__.'::Response'
  85 }
  86
  87 sub forbid {
  88         my ($condition) = @_;
  89         $privacy = 'private' if $condition;
  90         return if !$condition || admin;
  91         unwind $env->{authcomplex}->unauthorized, SUB UP
  92 }
  93
  94 sub dispatch_request{
  95         $env = $_[PSGI_ENV];
  96         $privacy = 'public';
  97
  98         sub (GET) {
  99                 sub (/robots.txt) { NOT_FOUND },
 100
 101                 sub (/src/:job) {
 102                         return NOT_FOUND if !job;
 103                         my $isowner = remote_user && remote_user->id eq job->rawowner;
 104                         my $private = job->private || job->problem->private || job->contest && job->contest->is_running;
 105                         forbid !$isowner && $private;
 106                         my $privacy = $private ? 'private' : 'public';
 107                         my @headers = ('X-Forever' => 1, 'Cache-Control' => "$privacy, max-age=604800", 'Content-Type' => CONTENT_TYPES->{job->extension});
 108                         push @headers, (Vary => 'Authorization') if $private;
 109                         [200, \@headers, [job->source]]
 110                 },
 111
 112                 sub (?:format~) {
 113                         my $format = lc ($_{format} // '');
 114                         response_filter {
 115                                 my ($r) = @_;
 116                                 return $r if ref $r ne 'Plack::App::Gruntmaster::Response';
 117                                 my @hdrs = ('X-Forever' => 1, 'Cache-Control' => "$privacy, max-age=$r->{maxage}");
 118                                 push @hdrs, Vary => 'Authorization' if $privacy eq 'private';
 119                                 return [200, ['Content-Type' => 'application/json; charset=utf-8', @hdrs], [encode_json $r->{params}]] if $format eq 'json';
 120                                 my $ret = render $r->{template}, 'en', title => $r->{title}, %{$r->{params}};
 121                                 [200, ['Content-Type' => 'text/html; charset=utf-8', @hdrs], [encode 'UTF-8', $ret]]
 122                         },
 123                 },
 124
 125                 sub (/st/:contest) {
 126                         response st => 'Standings', {
 127                                 st => [ contest->standings ],
 128                                 problems => [
 129                                         map { [$_->id, $_->name] }
 130                                         sort { $a->value <=> $b->value }
 131                                         map { $_->problem } contest->contest_problems],
 132                         }, 10
 133                 },
 134
 135                 sub (/ed/:contest) {
 136                         forbid !contest->is_finished;
 137                         my $pblist = db->problem_list(contest => $_{contest}, solution => 1);
 138                         response ed => 'Editorial of ' . contest->name, {%$pblist, editorial => contest->editorial}, contest->is_finished(time - 86400) ? 60 : ();
 139                 },
 140
 141                 sub (/login) {
 142                         forbid !remote_user;
 143                         [200, ['Content-Type' => 'text/plain; charset=UTF-8', 'Cache-Control' => 'private, max-age=300', Vary => 'Authorization'], [$env->{REMOTE_USER}]]
 144                 },
 145
 146                 sub (/ct/:contest/log/st) { redirect "/st/$_{contest}" },
 147
 148                 sub (/us/)                                        { response us => 'Users', {us => db->user_list} },
 149                 sub (/ct/  + ?:owner~)                            { response ct => 'Contests', db->contest_list(%_), 300 },
 150                 sub (/log/ + ?:contest~&:owner~&:page~&:problem~&:private~&:result~) {
 151                         forbid $_{private};
 152                         response log => 'Job list', db->job_list(%_), 5
 153                 },
 154                 sub (/pb/  + ?:owner~&:contest~&:private~)                  {
 155                         forbid $_{private};
 156                         forbid contest && contest->is_pending;
 157                         response pb => 'Problems', db->problem_list(%_)
 158                 },
 159
 160                 sub (/us/:user)    { response us_entry => user->name, db->user_entry($_{user}) },
 161                 sub (/ct/:contest) { response ct_entry => contest->name, db->contest_entry($_{contest}), 60 },
 162                 sub (/log/:job)    {
 163                         forbid job->private;
 164                         response log_entry => "Job  $_{job}", db->job_entry($_{job}), 10
 165                 },
 166                 sub (/pb/:problem + ?contest~) {
 167                         my (undef, undef, $contest) = @_;
 168                         $_{contest} = $contest;
 169                         return NOT_FOUND if contest && !db->contest_problems->find($_{contest}, $_{problem});
 170                         forbid problem->private && !contest;
 171                         if (contest) {
 172                                 return redirect "/pb/$_{problem}" unless contest->is_running;
 173                                 forbid !remote_user;
 174                                 $privacy = 'private';
 175                         }
 176                         response pb_entry => problem->name, db->problem_entry($_{problem}, $_{contest}, remote_user && remote_user->id), $_{contest} ? 10 : ();
 177                 },
 178                 sub (/sol/:problem) {
 179                         forbid problem->private;
 180                         response sol => 'Solution of ' . problem->name, {solution => db->problem($_{problem})->solution};
 181                 },
 182
 183                 sub (/) { redispatch_to '/index' },
 184                 sub (/favicon.ico) { redirect '/static/favicon.ico' },
 185                 sub (/:article) { [200, ['Content-Type' => 'text/html; charset=utf-8', 'Cache-Control' => 'public, max-age=3600', 'X-Forever' => 1], [render_article $_{article}, 'en']] }
 186         },
 187
 188         sub (POST) {
 189                 sub (/action/submit + %:problem=&:contest~&:prog_format=&:source_code~ + *prog~) {
 190                         my (undef, undef, $prog) = @_;
 191                         forbid !remote_user;
 192                         my $private = (problem->private && !contest) ? 1 : 0;
 193                         return reply 'This contest has finished' if contest && contest->is_finished;
 194                         return reply 'This contest has not yet started' if contest && contest->is_pending;
 195                         return reply 'This problem is private' if !admin && $private;
 196                         return reply 'This problem does not belong to this contest' if contest && !db->contest_problems->find($_{contest}, $_{problem});
 197                         return reply 'Maximum source size is 10KB' if ($prog ? $prog->size : length $_{source_code}) > 10 * 1024;
 198                         return reply 'You must wait 30 seconds between jobs' if !admin && time <= remote_user->lastjob + 30;
 199                         remote_user->update({lastjob => time});
 200
 201                         my $source = $prog ? read_file $prog->path : $_{source_code};
 202                         unlink $prog->path if $prog;
 203                         my $newjob = db->jobs->create({
 204                                 maybe contest => $_{contest},
 205                                 private => $private,
 206                                 date => time,
 207                                 extension => FORMAT_EXTENSION->{$_{prog_format}},
 208                                 format => $_{prog_format},
 209                                 problem => $_{problem},
 210                                 source => $source,
 211                                 owner => remote_user->id,
 212                         });
 213
 214                         [303, [Location => '/log/' . $newjob->id], []]
 215                 },
 216         }
 217 }
 218
 219
 220 1;
 221 __END__