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package MasterServer::Core::Logging;
use strict;
use warnings;
use Switch;
use POSIX qw/strftime/;
use Exporter 'import';
our @EXPORT = qw| log error |;
################################################################################
## Split up errors in multiple log types for suppressing
## args: $self, message
################################################################################
sub error {
my ($self, $error, $instigator) = @_;
# which error?
switch ($error) {
# connection timed out
case m/Connection timed out/i {
$self->log("timeout", "on $instigator.");
}
# connection reset by peer
case m/Connection reset by peer/i {
$self->log("reset", "on $instigator.");
}
# connection refused
case m/Connection refused/i {
$self->log("refused", "on $instigator.");
}
# no such device or address
case m/No such device or address/i {
$self->log("nodevice", "on $instigator.");
}
# if all else fails
else {
$self->log("error", "$error on $instigator.");
}
}
}
################################################################################
## Log to file and print to screen.
## args: $self, message_type, message
################################################################################
sub log {
my ($self, $type, $msg) = @_;
# flush
$| = 1;
# parse time of log entry and prep for rotating log
my $time = strftime('%Y-%m-%d %H:%M:%S',localtime);
my $yearly = strftime('-%Y',localtime);
my $monthly = strftime('-%Y-%m',localtime);
my $weekly = strftime('-%Y-week%U',localtime);
my $daily = strftime('-%Y-%m-%d',localtime);
# is the message suppressed in config?
return if (defined $type && $self->{suppress} =~ m/$type/i);
# determine filename
my $f = "MasterServer";
# rotate log filename according to config
$f .= $daily if ($self->{log_rotate} =~ /^daily$/i );
$f .= $weekly if ($self->{log_rotate} =~ /^weekly$/i );
$f .= $monthly if ($self->{log_rotate} =~ /^monthly$/i );
$f .= $yearly if ($self->{log_rotate} =~ /^yearly$/i );
$f .= ".log";
# put log filename together
my $logfile = $self->{log_dir}.((substr($self->{log_dir},-1) eq "/")?"":"/").$f;
print "[$time] [$type] > $msg\n" if $self->{printlog};
# temporarily disable the warnings-to-log, to avoid infinite recursion if
# this function throws a warning.
my $old = $SIG{__WARN__};
$SIG{__WARN__} = undef;
chomp $msg;
$msg =~ s/\n/\n | /g;
if($logfile && open my $F, '>>:utf8', $logfile) {
flock $F, 2;
seek $F, 0, 2;
print $F "[$time]\t[$type]\t$msg\n";
flock $F, 4;
close $F;
}
$SIG{__WARN__} = $old;
}
1;
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