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[gruntmaster-daemon.git] / lib / Gruntmaster / Daemon.pm
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1package Gruntmaster::Daemon;
2
3use 5.014000;
4use strict;
5use warnings;
6
d6a1ae0d 7our $VERSION = '5999.000_002';
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8
9use Gruntmaster::Daemon::Constants qw/ERR/;
ad77b7d3 10use Gruntmaster::Daemon::Format qw/prepare_files/;
4dc6495c 11use Gruntmaster::Data;
5c5cd38a 12
ab436d78 13use File::Basename qw/fileparse/;
ab436d78 14use File::Temp qw/tempdir/;
ab436d78 15use Sys::Hostname qw/hostname/;
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16use Time::HiRes qw/time/;
17use Try::Tiny;
5c5cd38a 18use Log::Log4perl qw/get_logger/;
064332cd 19use LWP::UserAgent;
5c5cd38a 20
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21use constant PAGE_SIZE => 10;
22
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23##################################################
24
064332cd 25my $ua = LWP::UserAgent->new;
82657f57 26my @purge_hosts = exists $ENV{PURGE_HOSTS} ? split ' ', $ENV{PURGE_HOSTS} : ();
064332cd 27
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28sub safe_can_nodie {
29 my ($type, $sub, $name) = @_;
30
31 return unless $name =~ /^\w+$/;
32 no strict 'refs';
33 my $pkg = __PACKAGE__ . "::${type}::${name}";
34 eval "require $pkg" or get_logger->warn("Error while requiring $pkg: $@");
35 $pkg->can($sub);
36}
37
38sub safe_can {
39 my ($type, $sub, $name) = @_;
40
41 safe_can_nodie @_ or get_logger->logdie("No such \l$type: '$name'");
42}
43
064332cd 44sub purge {
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45 for my $host (@purge_hosts) {
46 my $req = HTTP::Request->new(PURGE => "http://$host$_[0]");
47 $ua->request($req)
48 }
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49}
50
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51sub process{
52 my $job = shift;
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53
54 my @results;
55 my @full_results = ();
56 my $meta = {};
22e9a940 57 our $errors = '';
5c5cd38a 58 try {
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59 $meta = job_inmeta $job;
60 if (job_problem $job) {
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61 local $_ = job_problem $job;
62 my $pbmeta = problem_meta;
adb44605 63 my %files = exists $meta->{files} ? %{$meta->{files}} : ();
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64 $meta = {
65 %$meta,
8a8d1a82 66 problem => $_,
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67 (defined problem_generator() ? (generator => problem_generator) : ()),
68 (defined problem_runner() ? (runner => problem_runner) : ()),
69 (defined problem_judge() ? (judge => problem_judge) : ()),
70 (defined problem_testcnt() ? (testcnt => problem_testcnt) : ()),
71 (defined problem_timeout() ? (timeout => problem_timeout) : ()),
72 (defined problem_olimit() ? (olimit => problem_olimit) : ()),
73 %$pbmeta
74 };
ab436d78 75 $meta->{files} = {%files, %{$pbmeta->{files}}} if exists $pbmeta->{files};
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76 }
77
ab436d78 78 prepare_files $meta;
22e9a940 79 chomp $errors;
ab436d78 80
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81 my ($files, $generator, $runner, $judge, $testcnt) = map { $meta->{$_} or die "Required parameter missing: $_"} qw/files generator runner judge testcnt/;
82
83 $generator = safe_can Generator => generate => $generator;
84 $runner = safe_can Runner => run => $runner;
85 $judge = safe_can Judge => judge => $judge;
86
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87 for my $test (1 .. $testcnt) {
88 my $start_time = time;
89 my $result;
90 try {
91 $generator->($test, $meta);
92 $result = $runner->($test, $meta);
93 } catch {
94 $result = $_;
95 unless (ref $result) {
96 chomp $result;
97 $result = [ERR, $result];
98 }
99 };
100
101 if (ref $result) {
102 get_logger->trace("Test $test result is " . $result->[1]);
103 push @full_results, {id => $test, result => $result->[0], result_text => $result->[1], time => time - $start_time}
104 } else {
105 get_logger->trace("Test $test result is $result");
106 push @full_results, {id => $test, result => 0, result_text => $result, time => time - $start_time}
107 }
108 push @results, $result;
109 last if $meta->{judge} eq 'Absolute' && ref $result
110 }
111
112 my %results = $judge->(@results);
113 $meta->{$_} = $results{$_} for keys %results;
114 } catch {
115 s,(.*) at .*,$1,;
116 chomp;
117 $meta->{result} = -1;
118 $meta->{result_text} = $_;
119 };
120
5c5cd38a 121 get_logger->info("Job result: " . $meta->{result_text});
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122 set_job_result $job, $meta->{result};
123 set_job_result_text $job, $meta->{result_text};
124 set_job_results $job, \@full_results if scalar @full_results;
22e9a940 125 set_job_errors $job, $errors;
ab436d78 126
0e0e340d 127 my $log = $Gruntmaster::Data::contest ? "ct/$Gruntmaster::Data::contest/log" : 'log';
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128
129 PUBLISH gensrc => ($Gruntmaster::Data::contest // '') . ".$job";
95ea982c 130 PUBLISH genpage => "$log/job/$job.html";
7ddb70a9 131 PUBLISH genpage => "$log/index.html";
4dc6495c 132 PUBLISH genpage => "$log/st.html";
adb44605 133 my $page = ($job + PAGE_SIZE - 1) / PAGE_SIZE;
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134 PUBLISH genpage => "$log/@{[$page - 1]}.html";
135 PUBLISH genpage => "$log/$page.html";
136 PUBLISH genpage => "$log/@{[$page + 1]}.html";
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137
138 purge "/$log/job/$job";
139 purge "/$log/";
140 purge "/$log/st";
141 purge "/$log/$_" for $page - 1, $page, $page + 1;
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142}
143
144sub got_job{
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145 $_[0] =~ /^(\w*)\.(\d+)$/;
146 my $job = $2;
0890dd25 147 local $Gruntmaster::Data::contest = $1 if $1;
cfb728e8 148 get_logger->debug("Taking job $job@{[defined $1 ? \" of contest $1\" : '']}...");
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149 if (set_job_daemon $job, hostname . ":$$") {
150 get_logger->debug("Succesfully taken job $job");
151 process $job;
152 get_logger->debug("Job $job done");
153 } else {
154 get_logger->debug("Job $job already taken");
155 }
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156}
157
158sub run{
bd084fbe 159 Log::Log4perl->init('/etc/gruntmasterd/gruntmasterd-log.conf');
ab436d78 160 get_logger->info("gruntmasterd $VERSION started");
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161 chdir tempdir 'gruntmasterd.XXXX', CLEANUP => 1, TMPDIR => 1;
162 SUBSCRIBE jobs => \&got_job;
163 WAIT_FOR_MESSAGES 86400 while 1
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164}
165
1661;
167__END__
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168
169=head1 NAME
170
bc372959 171Gruntmaster::Daemon - Gruntmaster 6000 Online Judge -- daemon
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172
173=head1 SYNOPSIS
174
175 use Gruntmaster::Daemon;
bc372959 176 Gruntmaster::Daemon->run;
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177
178=head1 DESCRIPTION
179
bc372959 180Gruntmaster::Daemon is the daemon component of the Gruntmaster 6000 online judge.
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181
182=head1 AUTHOR
183
bc372959 184Marius Gavrilescu E<lt>marius@ieval.roE<gt>
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185
186=head1 COPYRIGHT AND LICENSE
187
bc372959 188Copyright (C) 2014 by Marius Gavrilescu
5c5cd38a 189
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190This library is free software: you can redistribute it and/or modify
191it under the terms of the GNU Affero General Public License as published by
192the Free Software Foundation, either version 3 of the License, or
193(at your option) any later version.
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194
195
196=cut
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