app.psgi

   1 #!/usr/bin/perl -w
   2 use v5.14;
   3
   4 use Apache2::Authen::Passphrase qw/pwcheck/;
   5 use Apache2::AuthzCaps qw/hascaps/;
   6 use Gruntmaster::Data;
   7 use Plack::App::Gruntmaster;
   8 use Plack::Builder;
   9 use Plack::Request;
  10 use Digest::SHA qw/sha256/;
  11 use Log::Log4perl;
  12
  13 use constant ACCESSLOG_FORMAT => '%{X-Forwarded-For}i|%h %u "%r" %>s %b "%{Referer}i" "%{User-agent}i"';
  14 use constant CONTENT_SECURITY_POLICY => q,default-src 'none'; script-src 'self' www.google-analytics.com; style-src 'self'; img-src 'self' www.google-analytics.com; connect-src 'self',;
  15
  16 $Apache2::AuthzCaps::rootdir = $Apache2::Authen::Passphrase::rootdir;
  17 my $word = qr,(\w+),a;
  18
  19 sub debug {
  20         local $Log::Log4perl::caller_depth = $Log::Log4perl::caller_depth + 1;
  21         $_[0]->{'psgix.logger'}->({qw/level debug message/ => $_[1]})
  22 }
  23
  24 sub some_auth_required {
  25         my $r = Plack::Request->new($_[0]);
  26         return 1 if $_[0]->{'gruntmaster.reqadmin'} || $r->path eq '/action/passwd' || $r->path =~ m,/pb/$word/submit$,;
  27         return 1 if $r->path =~ m,^/ct/$word/pb/$word, && time < contest_end $1;
  28         0
  29 }
  30
  31 sub admin_required {
  32         local $_ = $_[0];
  33         return problem_owner $1 if m,^/pb/$word, && problem_private $1;
  34         return job_user $1  if m,^/log/(?:job|src)/$word, && job_private $1;
  35         return contest_owner $1 if m,^/ct/$word/(?:pb|log), && time < contest_start $1;
  36         if (m,^/ct/$word/log/(?:job|src)/$word, && time < contest_end $1){
  37                 local $Gruntmaster::Data::contest = $1;
  38                 return job_user $2;
  39         }
  40         0
  41 }
  42
  43 sub require_admin {
  44         my $app = $_[0];
  45         sub {
  46                 local *__ANON__ = "require_admin_middleware";
  47                 my $env = $_[0];
  48                 my $r = Plack::Request->new($env);
  49                 $env->{'gruntmaster.reqadmin'} = admin_required $r->path;
  50                 $app->($env)
  51         }
  52 }
  53
  54 my %authen_cache;
  55
  56 sub authenticate {
  57         my ($user, $pass, $env) = @_;
  58         my $cache_key = sha256 "$user:$pass";
  59         my $time = $authen_cache{$cache_key} // 0;
  60         if ($time >= time - 300) {
  61                 return 1;
  62         } else {
  63                 delete $authen_cache{$cache_key};
  64         }
  65
  66         return unless eval {
  67                 pwcheck $user, $pass;
  68                 1
  69         };
  70         $authen_cache{$cache_key} = time;
  71
  72         return if $env->{'gruntmaster.reqadmin'} && $env->{'gruntmaster.reqadmin'} ne $user && !hascaps $user, 'gmadm';
  73         1
  74 }
  75
  76 Log::Log4perl->init('log.conf');
  77 my $access_logger = Log::Log4perl->get_logger('access');
  78
  79 builder {
  80         enable_if { $_[0]->{PATH_INFO} eq '/ok' } sub { sub{ [200, [], []] }};
  81         enable 'AccessLog', format => ACCESSLOG_FORMAT, logger => sub { $access_logger->info(@_) };
  82         enable 'ContentLength';
  83         enable Header => set => ['Content-Security-Policy', CONTENT_SECURITY_POLICY];
  84         enable_if { $_[0]->{PATH_INFO} =~ qr,^/static/,} Header => set => ['Cache-Control', 'public, max-age=604800'];
  85         enable 'Static', path => qr,^/static/,;
  86         enable 'Log4perl', category => 'plack';
  87         enable \&require_admin;
  88         enable_if \&some_auth_required, 'Auth::Basic', authenticator => \&authenticate, realm => 'Gruntmaster 6000';
  89         Plack::App::Gruntmaster->to_app
  90 }