6fef26d8aee3210045ae638bc16b78aabc02c319
[gruntmaster-daemon.git] / lib / Gruntmaster / Daemon.pm
1 package Gruntmaster::Daemon;
2
3 use 5.014000;
4 use strict;
5 use warnings;
6
7 our $VERSION = '5999.000_004';
8
9 use Gruntmaster::Daemon::Constants qw/ERR/;
10 use Gruntmaster::Daemon::Format qw/prepare_files stopvms/;
11
12 use File::Basename qw/fileparse/;
13 use File::Temp qw/tempdir/;
14 use JSON qw/decode_json encode_json/;
15 use Sys::Hostname qw/hostname/;
16 use Time::HiRes qw/time/;
17 use Try::Tiny;
18 use Log::Log4perl qw/get_logger/;
19
20 use constant PAGE_SIZE => 10;
21 use constant FORMAT_EXTENSION => {
22 C => 'c',
23 CPP => 'cpp',
24 GCCGO => 'go',
25 GOLANG => 'go',
26 HASKELL => 'hs',
27 MONO => 'cs',
28 JAVA => 'java',
29 PASCAL => 'pas',
30 PERL => 'pl',
31 PYTHON => 'py',
32 };
33
34 ##################################################
35
36 sub purge;
37
38 my $db;
39
40 sub safe_can_nodie {
41 my ($type, $sub, $name) = @_;
42
43 return unless $name =~ /^\w+$/s;
44 my $pkg = __PACKAGE__ . "::${type}::${name}";
45 eval "require $pkg" or get_logger->warn("Error while requiring $pkg: $@");
46 $pkg->can($sub);
47 }
48
49 sub safe_can {
50 my ($type, $sub, $name) = @_;
51
52 safe_can_nodie @_ or get_logger->logdie("No such \l$type: '$name'");
53 }
54
55 sub process{
56 my ($job, $jobr) = @_;
57
58 my @results;
59 my @full_results = ();
60 my $meta;
61 our $errors = '';
62 try {
63 if (ref $job) {
64 $meta = $job;
65 } else {
66 $meta = {
67 problem => $jobr->problem->id,
68 files => {
69 prog => {
70 name => 'prog.' . $jobr->extension,
71 format => $jobr->format,
72 content => $jobr->source,
73 },
74 },
75 map { $_ => $jobr->problem->get_column($_) } qw/generator runner judge testcnt timeout olimit/
76 };
77 $meta->{tests} = decode_json $jobr->problem->tests if $meta->{runner} eq 'File';
78
79 $meta->{files}{ver} = {
80 name => 'ver.' . FORMAT_EXTENSION->{$jobr->problem->verformat},
81 format => $jobr->problem->verformat,
82 content => $jobr->problem->versource,
83 } if $jobr->problem->verformat;
84 }
85
86 prepare_files $meta;
87 chomp $errors;
88
89 my ($files, $generator, $runner, $judge, $testcnt) = map { $meta->{$_} or die "Required parameter missing: $_\n"} qw/files generator runner judge testcnt/;
90
91 $generator = safe_can Generator => generate => $generator;
92 $runner = safe_can Runner => run => $runner;
93 $judge = safe_can Judge => judge => $judge;
94
95 for my $test (1 .. $testcnt) {
96 my $start_time = time;
97 my $result;
98 try {
99 $generator->($test, $meta);
100 $result = $runner->($test, $meta);
101 } catch {
102 $result = $_;
103 unless (ref $result) {
104 chomp $result;
105 $result = [ERR, $result];
106 }
107 };
108
109 if (ref $result) {
110 get_logger->trace("Test $test result is " . $result->[1]);
111 push @full_results, {id => $test, result => $result->[0], result_text => $result->[1], time => time - $start_time}
112 } else {
113 get_logger->trace("Test $test result is $result");
114 push @full_results, {id => $test, result => 0, result_text => $result, time => time - $start_time}
115 }
116 push @results, $result;
117 last if $meta->{judge} eq 'Absolute' && ref $result
118 }
119
120 my %results = $judge->(@results);
121 $meta->{$_} = $results{$_} for keys %results;
122 $meta->{results} = \@full_results
123 } catch {
124 s/(.*) at .*/$1/s;
125 chomp;
126 $meta->{result} = -1;
127 $meta->{result_text} = $_;
128 };
129 stopvms;
130
131 get_logger->info('Job result: ' . $meta->{result_text});
132 return unless $jobr;
133 $jobr->update({
134 result => $meta->{result},
135 result_text => $meta->{result_text},
136 ($meta->{results} ? (results => encode_json $meta->{results}) : ()),
137 $errors ? (errors => $errors) : ()
138 });
139
140 my $solved = $meta->{result} ? 0 : 1;
141 my $status = $db->problem_statuses->find($jobr->owner, $jobr->problem);
142 $db->problem_statuses->update_or_create({
143 problem => $jobr->problem,
144 owner => $jobr->owner,
145 job => $jobr->id,
146 solved => $solved}) if !$jobr->problem->private;
147
148 purge '/log/';
149 purge "/log/$job";
150 purge '/st/' . $jobr->contest if $jobr->contest;
151 purge '/us/';
152 purge '/us/' . $jobr->owner;
153 }
154
155 sub got_job{
156 my $job = $_[0];
157 my $id = $job->id;
158 get_logger->debug("Taking job $id...");
159 my $daemon = hostname . ":$$";
160 $job->update({daemon => $daemon});
161 #if (set_job_daemon $job, hostname . ":$$") {
162 if (1) {
163 get_logger->debug("Succesfully taken job $id");
164 process $id, $job;
165 get_logger->debug("Job $id done");
166 } else {
167 get_logger->debug("Job $id already taken");
168 }
169 }
170
171 sub run{
172 warn "No GRUNTMASTER_VM environment variable. Running without a VM is a security risk.\n" unless $ENV{GRUNTMASTER_VM};
173 require Gruntmaster::Data;
174 Gruntmaster::Data->import;
175 $db = Gruntmaster::Data->connect('dbi:Pg:');
176 Log::Log4perl->init('/etc/gruntmasterd/gruntmasterd-log.conf');
177 get_logger->info("gruntmasterd $VERSION started");
178 chdir tempdir 'gruntmasterd.XXXX', CLEANUP => 1, TMPDIR => 1;
179 while (1) {
180 my $job = $db->jobs->search({daemon => undef}, {rows => 1})->first;
181 got_job $job if defined $job;
182 sleep 2 unless defined $job;
183 }
184 }
185
186 1;
187 __END__
188
189 =head1 NAME
190
191 Gruntmaster::Daemon - Gruntmaster 6000 Online Judge -- daemon
192
193 =head1 SYNOPSIS
194
195 use Gruntmaster::Daemon;
196 Gruntmaster::Daemon->run;
197
198 =head1 DESCRIPTION
199
200 Gruntmaster::Daemon is the daemon component of the Gruntmaster 6000 online judge.
201
202 =head1 AUTHOR
203
204 Marius Gavrilescu E<lt>marius@ieval.roE<gt>
205
206 =head1 COPYRIGHT AND LICENSE
207
208 Copyright (C) 2014 by Marius Gavrilescu
209
210 This library is free software: you can redistribute it and/or modify
211 it under the terms of the GNU Affero General Public License as published by
212 the Free Software Foundation, either version 3 of the License, or
213 (at your option) any later version.
214
215
216 =cut
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