This file is indexed.

/usr/share/perl5/Log/Handler/Levels.pm is in liblog-handler-perl 0.88-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
=head1 NAME

Log::Handler::Levels - All levels for Log::Handler.

=head1 DESCRIPTION

Base class for Log::Handler.

Just for internal usage and documentation.

=head1 METHODS

=head2 Default log level

=over

=item B<debug()>

=item B<info()>

=item B<notice()>

=item B<warning()>, B<warn()>

=item B<error()>, B<err()>

=item B<critical()>, B<crit()>

=item B<alert()>

=item B<emergency()>, B<emerg()>

=back

=head2 Checking for active levels

=over

=item B<is_debug()>

=item B<is_info()>

=item B<is_notice()>

=item B<is_warning()>, B<is_warn()>

=item B<is_error()>, B<is_err()>

=item B<is_critical()>, B<is_crit()>

=item B<is_alert()>

=item B<is_emergency()>, B<is_emerg()>

=back

=head2 Special level

=over

=item B<fatal()>

Alternative for the levels C<critical> - C<emergency>.

=item B<is_fatal()>

Check if one of the levels C<critical> - C<emergency> is active.

=back

=head2 Special methods

=over

=item B<trace()>

This method is very useful if you want to add a full backtrace to
your message. Maybe you want to intercept unexpected errors and
want to know who called C<die()>.

    $SIG{__DIE__} = sub { $log->trace(emergency => @_) };

By default the backtrace is logged as level C<debug>.

    # would log with the level debug
    $log->trace('who called who');

If you want to log with another level then you can pass the level
as first argument:

    $log->trace(info => $message);

=item B<dump()>

If you want to dump something then you can use C<dump()>.
The default level is C<debug>.

    my %hash = (foo => 1, bar => 2);

    $log->dump(\%hash);

If you want to log with another level then you can pass the level
as first argument:

    $log->dump($level => \%hash);

=item B<die()>

This method logs the message to the output and then call C<Carp::croak()>
with the level C<emergency> by default.

    $log->die('an emergency error here');

If you want to log with another level, then you can pass the level
as first argument:

    $log->die(fatal => 'an emergency error here');

=item B<log()>

With this method it's possible to log messages with the log level as
first argument:

    $log->log(info => 'an info message');

Is the same like

    $log->info('an info message');

and

    $log->log('an info message');

If you log without a level then the default level is C<info>.

=back

=head1 PREREQUISITES

    Carp
    Data::Dumper

=head1 EXPORTS

No exports.

=head1 REPORT BUGS

Please report all bugs to <jschulz.cpan(at)bloonix.de>.

If you send me a mail then add Log::Handler into the subject.

=head1 AUTHOR

Jonny Schulz <jschulz.cpan(at)bloonix.de>.

=head1 COPYRIGHT

Copyright (C) 2007-2009 by Jonny Schulz. All rights reserved.

This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.

=cut

package Log::Handler::Levels;

use strict;
use warnings;
use Carp;
use Data::Dumper;

our $VERSION = '0.07';

my %LEVELS_BY_ROUTINE = (
    debug     => 'DEBUG',
    info      => 'INFO',
    notice    => 'NOTICE',
    warning   => 'WARNING',
    warn      => 'WARNING',
    error     => 'ERROR',
    err       => 'ERROR',
    critical  => 'CRITICAL',
    crit      => 'CRITICAL',
    alert     => 'ALERT',
    emergency => 'EMERGENCY',
    emerg     => 'EMERGENCY',
    fatal     => 'FATAL',
);

foreach my $routine (keys %LEVELS_BY_ROUTINE) {
    my $level = $LEVELS_BY_ROUTINE{$routine};

    {   # start "no strict 'refs'" block
        no strict 'refs';

        # --------------------------------------------------------------
        # Creating the syslog level methods
        # --------------------------------------------------------------

        *{"$routine"} = sub {
            use strict 'refs';
            my $self   = shift;
            my $levels = $self->{levels};
            my ($errors, $caller);

            if ( !$levels->{$level} ) {
                return 1;
            }

            foreach my $output ( @{$levels->{$level}} ) {
                if ($output->{category} || $output->{filter_caller} || $output->{except_caller}) {
                    if (!$caller) {
                        $caller = (caller($Log::Handler::CALLER_LEVEL))[0];
                    }

                    if ($output->{category}) {
                        my $category = $output->{category};
                        return 1 if $caller !~ $output->{category};
                    } elsif ($output->{filter_caller}) {
                        return 1 if $caller !~ $output->{filter_caller};
                    } elsif ($output->{except_caller}) {
                        return 1 if $caller =~ $output->{except_caller};
                    }
                }

                if ( !$output->log($level, @_) ) {
                    if ( defined $errors ) {
                        $errors .= '; ' . $output->errstr;
                    } else {
                        $errors = $output->errstr;
                    }
                }
            }

            return defined $errors ? $self->_raise_error($errors) : 1;
        };

        # --------------------------------------------------------------
        # Creating the is_<level> methods
        # --------------------------------------------------------------

        *{"is_$routine"} = sub {
            use strict 'refs';
            my $self = shift;
            my $levels = $self->{levels};
            return $levels->{$level} ? 1 : 0;
        };

    } # end "no strict 'refs'" block
}

sub log {
    my $self  = shift;
    my $level = @_ > 1 ? lc(shift) : 'info';
    if (!exists $LEVELS_BY_ROUTINE{$level}) {
        $level = 'info';
    }
    local $Log::Handler::CALLER_LEVEL = 1;
    return $self->$level(@_);
}

sub trace {
    my $self  = shift;
    my $level = @_ > 1 ? lc(shift) : 'debug';
    if (!exists $LEVELS_BY_ROUTINE{$level}) {
        $level = 'debug';
    }
    local $Log::Handler::CALLER_LEVEL = 1;
    local $Log::Handler::TRACE = 1;
    return $self->$level(@_);
}

sub die {
    my $self  = shift;
    my $level = @_ > 1 ? lc(shift) : 'emergency';
    if (!exists $LEVELS_BY_ROUTINE{$level}) {
        $level = 'emergency';
    }
    local $Log::Handler::CALLER_LEVEL = 1;
    my @caller = caller;
    $self->$level(@_, "at line $caller[2]");
    Carp::croak @_;
};

sub dump {
    my $self  = shift;
    my $level = @_ > 1 ? lc(shift) : 'debug';
    my $is_level = "is_$level";
    if (!exists $LEVELS_BY_ROUTINE{$level}) {
        $level = 'debug';
    }
    local $Log::Handler::CALLER_LEVEL = 1;
    return $self->$is_level ? $self->$level(Dumper(@_)) : 1;
}

1;