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1 package Gruntmaster::Daemon;
2
3 use 5.014000;
4 use strict;
5 use warnings;
6
7 our $VERSION = '5999.000_005';
8
9 use Gruntmaster::Daemon::Constants qw/ERR/;
10 use Gruntmaster::Daemon::Format qw/prepare_files stopvms/;
11
12 use File::Slurp qw/read_file/;
13 use File::Temp qw/tempdir/;
14 use JSON qw/decode_json encode_json/;
15 use Sys::Hostname qw/hostname/;
16 use Try::Tiny;
17 use Log::Log4perl qw/get_logger/;
18
19 use constant FORMAT_EXTENSION => {
20 BRAINFUCK => 'bf',
21 C => 'c',
22 CPP => 'cpp',
23 D => 'd',
24 GCCGO => 'go',
25 GOLANG => 'go',
26 GOLFSCRIPT => 'gs',
27 HASKELL => 'hs',
28 JAVA => 'java',
29 JULIA => 'jl',
30 MONO => 'cs',
31 OBERON => 'm',
32 OCAML => 'ml',
33 PASCAL => 'pas',
34 PERL => 'pl',
35 PHP => 'php',
36 PYTHON => 'py',
37 RUBY => 'rb',
38 RUST => 'rs',
39 SBCL => 'l',
40 };
41
42 ##################################################
43
44 sub safe_can {
45 my ($type, $sub, $name) = @_;
46
47 get_logger->logdie("Invalid \l$type: '$name'") unless $name =~ /^\w+$/s;
48 my $pkg = __PACKAGE__ . "::${type}::${name}";
49 eval "require $pkg" or get_logger->warn("Error while requiring $pkg: $@");
50 $pkg->can($sub) or get_logger->logdie("No such \l$type: '$name'");
51 }
52
53 sub process{
54 my ($meta) = @_;
55
56 my @results;
57 my @full_results = ();
58 our $errors = '';
59 try {
60 prepare_files $meta;
61 chomp $errors;
62
63 my ($files, $generator, $runner, $judge, $testcnt) = map { $meta->{$_} or die "Required parameter missing: $_\n"} qw/files generator runner judge testcnt/;
64
65 $generator = safe_can Generator => generate => $generator;
66 $runner = safe_can Runner => run => $runner;
67 $judge = safe_can Judge => judge => $judge;
68
69 for my $test (1 .. $testcnt) {
70 my $result;
71 unlink 'result';
72 try {
73 $generator->($test, $meta);
74 $result = $runner->($test, $meta);
75 } catch {
76 $result = $_;
77 unless (ref $result) {
78 chomp $result;
79 $result = [ERR, $result];
80 }
81 };
82
83 my $time = '?';
84 $time = (read_file 'time-stop-prog') - (read_file 'time-start-prog') if -f 'time-stop-prog' && -f 'time-start-prog';
85 unlink 'time-start-prog', 'time-stop-prog';
86 if (ref $result) {
87 my $result_text = $result->[1];
88 $result_text .= ': ' . read_file 'result' if -s 'result';
89 get_logger->trace("Test $test result is " . $result_text);
90 push @full_results, {id => $test, result => $result->[0], result_text => $result_text, time => $time}
91 } else {
92 get_logger->trace("Test $test result is $result");
93 push @full_results, {id => $test, result => 0, result_text => $result, time => $time}
94 }
95 push @results, $result;
96 last if $meta->{judge} eq 'Absolute' && ref $result
97 }
98
99 my %results = $judge->(@results);
100 $meta->{$_} = $results{$_} for keys %results;
101 $meta->{results} = \@full_results
102 } catch {
103 s/(.*) at .*/$1/s;
104 chomp;
105 $meta->{result} = -1;
106 $meta->{result_text} = $_;
107 };
108 stopvms;
109 $meta->{errors} = $errors;
110
111 get_logger->info('Job result: ' . $meta->{result_text});
112 }
113
114 sub process_job {
115 my ($job) = @_;
116 my $pb = db()->select('problems', '*', {id => $job->{problem}})->hash;
117 my $meta = {
118 problem => $job->{problem},
119 files => {
120 prog => {
121 name => 'prog.' . $job->{extension},
122 format => $job->{format},
123 content => $job->{source},
124 },
125 },
126 map { $_ => $pb->{$_} } qw/generator runner judge precnt testcnt timeout olimit/
127 };
128 my $timeout_override = db()->query('SELECT timeout FROM limits WHERE problem=? AND format=?', $job->{problem}, $job->{format})->list;
129 $meta->{timeout} = $timeout_override if defined $timeout_override;
130 $meta->{tests} = decode_json $pb->{tests} if $meta->{runner} eq 'File';
131 $job->{contest} &&= contest_entry($job->{contest});
132 delete $meta->{precnt} unless $job->{contest} && $job->{contest}{started} && !$job->{contest}{finished}; ## no critic (ProhibitNegativeExpressionsInUnlessAndUntilConditions)
133 $meta->{testcnt} = $meta->{precnt} if $meta->{precnt};
134
135 $meta->{files}{ver} = {
136 name => 'ver.' . FORMAT_EXTENSION->{$pb->{verformat}},
137 format => $pb->{verformat},
138 content => $pb->{versource},
139 } if $pb->{verformat};
140
141 process $meta;
142
143 $meta->{result_text} .= ' (pretests)' if $meta->{precnt};
144 finish_job($job, $job->{private} || $pb->{private},
145 result => $meta->{result},
146 result_text => $meta->{result_text},
147 ($meta->{results} ? (results => encode_json $meta->{results}) : ()),
148 $meta->{errors} ? (errors => $meta->{errors}) : ());
149 }
150
151 sub got_job{
152 my $job = $_[0];
153 my $id = $job->{id};
154 get_logger->debug("Processing job $id...");
155 process_job $job;
156 get_logger->debug("Job $id done");
157 }
158
159 my $daemon = hostname . ":$$";
160
161 sub run{
162 require Gruntmaster::Data;
163 Gruntmaster::Data->import;
164 dbinit($ENV{GRUNTMASTER_DSN} // 'dbi:Pg:');
165 Log::Log4perl->init('/etc/gruntmasterd/gruntmasterd-log.conf');
166 get_logger->info("gruntmasterd $VERSION started ($daemon)");
167 my $dir = tempdir 'gruntmasterd.XXXX', CLEANUP => 1, TMPDIR => 1;
168 chmod 0711, $dir;
169 chdir $dir;
170 while (1) {
171 my $job = take_job($daemon);
172 got_job $job if defined $job;
173 sleep 2 unless defined $job;
174 }
175 }
176
177 1;
178 __END__
179
180 =head1 NAME
181
182 Gruntmaster::Daemon - Gruntmaster 6000 Online Judge -- daemon
183
184 =head1 SYNOPSIS
185
186 use Gruntmaster::Daemon;
187 Gruntmaster::Daemon->run;
188
189 =head1 DESCRIPTION
190
191 Gruntmaster::Daemon is the daemon component of the Gruntmaster 6000 online judge.
192
193 =head1 AUTHOR
194
195 Marius Gavrilescu E<lt>marius@ieval.roE<gt>
196
197 =head1 COPYRIGHT AND LICENSE
198
199 Copyright (C) 2014 by Marius Gavrilescu
200
201 This library is free software: you can redistribute it and/or modify
202 it under the terms of the GNU Affero General Public License as published by
203 the Free Software Foundation, either version 3 of the License, or
204 (at your option) any later version.
205
206
207 =cut
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