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1 | #!/usr/bin/perl -w | |
2 | use v5.14; | |
3 | no if $] >= 5.017011, warnings => 'experimental::smartmatch'; | |
4 | ||
5 | use Apache2::Authen::Passphrase qw/pwcheck/; | |
6 | use Apache2::AuthzCaps qw/hascaps/; | |
7 | use Gruntmaster::Data; | |
8 | use Plack::App::Gruntmaster; | |
9 | use Plack::Builder; | |
10 | use Plack::Request; | |
11 | use Digest::SHA qw/sha256/; | |
12 | use Log::Log4perl; | |
13 | ||
14 | use constant ACCESSLOG_FORMAT => '%{X-Forwarded-For}i|%h %u "%r" %>s %b "%{Referer}i" "%{User-agent}i"'; | |
15 | use constant CONTENT_SECURITY_POLICY => q,default-src 'none'; script-src 'self' www.google-analytics.com; style-src 'self'; img-src 'self'; connect-src 'self',; | |
16 | ||
17 | $Apache2::AuthzCaps::rootdir = $Apache2::Authen::Passphrase::rootdir; | |
18 | my $word = qr,(\w+),a; | |
19 | my $db = Gruntmaster::Data->connect('dbi:Pg:'); | |
20 | ||
21 | sub debug { | |
22 | local $Log::Log4perl::caller_depth = $Log::Log4perl::caller_depth + 1; | |
23 | $_[0]->{'psgix.logger'}->({qw/level debug message/ => $_[1]}) | |
24 | } | |
25 | ||
26 | sub some_auth_required { | |
27 | my $r = Plack::Request->new($_[0]); | |
28 | return 1 if $_[0]->{'gruntmaster.reqadmin'} || $r->path eq '/action/passwd' || $r->path eq '/submit'; | |
29 | return 1 if $r->path =~ m,^/ct/$word/pb/$word, && time < $db->contest($1)->stop; | |
30 | '' | |
31 | } | |
32 | ||
33 | sub is_problem_private { | |
34 | my $pb = $_[0]; | |
35 | return 1 if $db->problem($pb)->private; | |
36 | my $prv = 0; | |
37 | for my $cp ($db->problem($pb)->contest_problems) { | |
38 | $prv = 1; | |
39 | return '' if $cp->contest->start <= time; | |
40 | } | |
41 | ||
42 | $prv | |
43 | } | |
44 | ||
45 | sub admin_required { | |
46 | local $_ = $_[0]; | |
47 | my $env = $_[1]; | |
48 | return $db->contest($1)->owner->id if $env->{'gruntmaster.contest'} && db->contest($env->{'gruntmaster.contest'})->start > time; | |
49 | return $db->problem($1)->owner->id if m,^/pb/$word, && is_problem_private $1 || $env->{'gruntmaster.problem'} && is_problem_private $env->{'gruntmaster.problem'}; | |
50 | return $db->job ($1)->owner->id if m,^/log/(?:src/)?$word, && ($db->job($1)->private || is_problem_private $db->job($1)->problem || $db->job($1)->contest && $db->contest($db->job($1)->contest)->start > time); | |
51 | '' | |
52 | } | |
53 | ||
54 | sub require_admin { | |
55 | my $app = $_[0]; | |
56 | sub { | |
57 | local *__ANON__ = "require_admin_middleware"; | |
58 | my $env = $_[0]; | |
59 | my $r = Plack::Request->new($env); | |
60 | $env->{'gruntmaster.reqadmin'} = admin_required $r->path, $env; | |
61 | $app->($env) | |
62 | } | |
63 | } | |
64 | ||
65 | sub mangle_request { | |
66 | my $app = $_[0]; | |
67 | sub { | |
68 | local *__ANON__ = 'mangle_request_middleware'; | |
69 | my $env = $_[0]; | |
70 | my ($number, $word) = (qr,(\d+),a, qr,(\w+),a); | |
71 | for ($env->{PATH_INFO}) { | |
72 | $env->{'gruntmaster.page'} = $1 if s,/page/$number$,/,; | |
73 | $env->{'gruntmaster.problem'} = $1 if s,^/pb/$word/,/,; | |
74 | $env->{'gruntmaster.contest'} = $1 if s,^/ct/$word/,/,; | |
75 | $env->{'gruntmaster.user'} = $1 if s,^/us/$word/,/,; | |
76 | $env->{'gruntmaster.page'} //= -1 if m,^/log/$,; | |
77 | } | |
78 | $app->($env); | |
79 | } | |
80 | } | |
81 | ||
82 | my %authen_cache; | |
83 | ||
84 | sub authenticate { | |
85 | my ($user, $pass, $env) = @_; | |
86 | my $cache_key = sha256 "$user:$pass"; | |
87 | my $time = $authen_cache{$cache_key} // 0; | |
88 | if ($time >= time - 300) { | |
89 | return 1; | |
90 | } else { | |
91 | delete $authen_cache{$cache_key}; | |
92 | } | |
93 | ||
94 | return unless eval { | |
95 | pwcheck $user, $pass; | |
96 | 1 | |
97 | }; | |
98 | $authen_cache{$cache_key} = time; | |
99 | ||
100 | return if $env->{'gruntmaster.reqadmin'} && $env->{'gruntmaster.reqadmin'} ne $user && !hascaps $user, 'gmadm'; | |
101 | 1 | |
102 | } | |
103 | ||
104 | Log::Log4perl->init('log.conf'); | |
105 | my $access_logger = Log::Log4perl->get_logger('access'); | |
106 | $ENV{DBIC_NULLABLE_KEY_NOWARN} = 1; | |
107 | ||
108 | builder { | |
109 | enable_if { $_[0]->{PATH_INFO} eq '/ok' } sub { sub{ [200, [], []] }}; | |
110 | enable 'AccessLog', format => ACCESSLOG_FORMAT, logger => sub { $access_logger->info(@_) }; | |
111 | enable 'ContentLength'; | |
112 | enable Header => set => ['Content-Security-Policy', CONTENT_SECURITY_POLICY]; | |
113 | enable_if { $_[0]->{PATH_INFO} =~ qr,^/static/,} Header => set => ['Cache-Control', 'public, max-age=604800']; | |
114 | enable 'Static', path => qr,^/static/,; | |
115 | enable 'Log4perl', category => 'plack'; | |
116 | enable \&mangle_request; | |
117 | enable \&require_admin; | |
118 | enable_if \&some_auth_required, 'Auth::Basic', authenticator => \&authenticate, realm => 'Gruntmaster 6000'; | |
119 | enable sub { my $app = $_[0]; sub { $_[0]->{'gruntmaster.dbic'} = $db; $app->($_[0]) } }; | |
120 | Plack::App::Gruntmaster->to_app | |
121 | } |