+ my %level_to_num = (
+ map( { $_ => } 0..7 ),
+ debug => 0,
+ info => 1,
+ notice => 2,
+ warning => 3,
+ error => 4, 'err' => 4,
+ critical => 5, crit => 5,
+ alert => 6,
+ emergency => 7, emerg => 7,
+ );
+
+ unless ( $RT::Logger ) {
+
+ $RT::Logger = Log::Dispatch->new;
+
+ my $stack_from_level;
+ if ( $stack_from_level = RT->Config->Get('LogStackTraces') ) {
+ # if option has old style '\d'(true) value
+ $stack_from_level = 0 if $stack_from_level =~ /^\d+$/;
+ $stack_from_level = $level_to_num{ $stack_from_level } || 0;
+ } else {
+ $stack_from_level = 99; # don't log
+ }
+
+ my $simple_cb = sub {
+ # if this code throw any warning we can get segfault
+ no warnings;
+ my %p = @_;
+
+ # skip Log::* stack frames
+ my $frame = 0;
+ $frame++ while caller($frame) && caller($frame) =~ /^Log::/;
+ my ($package, $filename, $line) = caller($frame);
+
+ # Encode to bytes, so we don't send wide characters
+ $p{message} = Encode::encode("UTF-8", $p{message});
+
+ $p{'message'} =~ s/(?:\r*\n)+$//;
+ return "[$$] [". gmtime(time) ."] [". $p{'level'} ."]: "
+ . $p{'message'} ." ($filename:$line)\n";
+ };
+
+ my $syslog_cb = sub {
+ # if this code throw any warning we can get segfault
+ no warnings;
+ my %p = @_;
+
+ my $frame = 0; # stack frame index
+ # skip Log::* stack frames
+ $frame++ while caller($frame) && caller($frame) =~ /^Log::/;
+ my ($package, $filename, $line) = caller($frame);
+
+ # Encode to bytes, so we don't send wide characters
+ $p{message} = Encode::encode("UTF-8", $p{message});
+
+ $p{message} =~ s/(?:\r*\n)+$//;
+ if ($p{level} eq 'debug') {
+ return "[$$] $p{message} ($filename:$line)\n";
+ } else {
+ return "[$$] $p{message}\n";
+ }
+ };
+
+ my $stack_cb = sub {
+ no warnings;
+ my %p = @_;
+ return $p{'message'} unless $level_to_num{ $p{'level'} } >= $stack_from_level;
+
+ require Devel::StackTrace;
+ my $trace = Devel::StackTrace->new( ignore_class => [ 'Log::Dispatch', 'Log::Dispatch::Base' ] );
+ return $p{'message'} . $trace->as_string;
+
+ # skip calling of the Log::* subroutins
+ my $frame = 0;
+ $frame++ while caller($frame) && caller($frame) =~ /^Log::/;
+ $frame++ while caller($frame) && (caller($frame))[3] =~ /^Log::/;
+
+ $p{'message'} .= "\nStack trace:\n";
+ while( my ($package, $filename, $line, $sub) = caller($frame++) ) {
+ $p{'message'} .= "\t$sub(...) called at $filename:$line\n";
+ }
+ return $p{'message'};
+ };
+
+ if ( $Config->Get('LogToFile') ) {
+ my ($filename, $logdir) = (
+ $Config->Get('LogToFileNamed') || 'rt.log',
+ $Config->Get('LogDir') || File::Spec->catdir( $VarPath, 'log' ),
+ );
+ if ( $filename =~ m![/\\]! ) { # looks like an absolute path.
+ ($logdir) = $filename =~ m{^(.*[/\\])};
+ }
+ else {
+ $filename = File::Spec->catfile( $logdir, $filename );
+ }
+
+ unless ( -d $logdir && ( ( -f $filename && -w $filename ) || -w $logdir ) ) {
+ # localizing here would be hard when we don't have a current user yet
+ die "Log file '$filename' couldn't be written or created.\n RT can't run.";
+ }
+
+ require Log::Dispatch::File;
+ $RT::Logger->add( Log::Dispatch::File->new
+ ( name=>'file',
+ min_level=> $Config->Get('LogToFile'),
+ filename=> $filename,
+ mode=>'append',
+ callbacks => [ $simple_cb, $stack_cb ],
+ ));
+ }
+ if ( $Config->Get('LogToSTDERR') ) {
+ require Log::Dispatch::Screen;
+ $RT::Logger->add( Log::Dispatch::Screen->new
+ ( name => 'screen',
+ min_level => $Config->Get('LogToSTDERR'),
+ callbacks => [ $simple_cb, $stack_cb ],
+ stderr => 1,
+ ));
+ }
+ if ( $Config->Get('LogToSyslog') ) {
+ require Log::Dispatch::Syslog;
+ $RT::Logger->add(Log::Dispatch::Syslog->new
+ ( name => 'syslog',
+ ident => 'RT',
+ min_level => $Config->Get('LogToSyslog'),
+ callbacks => [ $syslog_cb, $stack_cb ],
+ stderr => 1,
+ $Config->Get('LogToSyslogConf'),
+ ));
+ }
+ }
+ InitSignalHandlers(%arg);
+}