This file is indexed.

/usr/share/perl5/MHA/NodeUtil.pm is in mha4mysql-node 0.54-1.

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
#!/usr/bin/env perl

#  Copyright (C) 2011 DeNA Co.,Ltd.
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#   along with this program; if not, write to the Free Software
#  Foundation, Inc.,
#  51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

package MHA::NodeUtil;

use strict;
use warnings FATAL => 'all';

use Carp qw(croak);
use MHA::NodeConst;
use File::Path;
use Errno();

sub create_dir_if($) {
  my $dir = shift;
  if ( !-d $dir ) {
    eval {
      print "Creating directory $dir.. ";
      mkpath($dir);
      print "done.\n";
    };
    if ($@) {
      my $e = $@;
      undef $@;
      if ( -d $dir ) {
        print "ok. already exists.\n";
      }
      else {
        croak "failed to create dir:$dir:$e";
      }
    }
  }
}

# Compare file checksum between local and remote host
sub compare_checksum {
  my $local_file  = shift;
  my $remote_path = shift;
  my $ssh_user    = shift;
  my $ssh_host    = shift;
  my $ssh_port    = shift;
  $ssh_port = 22 unless ($ssh_port);

  my $local_md5 = `md5sum $local_file`;
  return 1 if ($?);
  chomp($local_md5);
  $local_md5 = substr( $local_md5, 0, 32 );
  my $ssh_user_host = $ssh_user . '@' . $ssh_host;
  my $remote_md5 =
`ssh $MHA::NodeConst::SSH_OPT_ALIVE -p $ssh_port $ssh_user_host \"md5sum $remote_path\"`;
  return 1 if ($?);
  chomp($remote_md5);
  $remote_md5 = substr( $remote_md5, 0, 32 );
  return 2 if ( $local_md5 ne $remote_md5 );
  return 0;
}

sub file_copy {
  my $to_remote   = shift;
  my $local_file  = shift;
  my $remote_file = shift;
  my $ssh_user    = shift;
  my $ssh_host    = shift;
  my $log_output  = shift;
  my $ssh_port    = shift;
  $ssh_port = 22 unless ($ssh_port);

  my $ssh_user_host = $ssh_user . '@' . $ssh_host;
  my ( $from, $to );
  if ($to_remote) {
    $from = $local_file;
    $to   = "$ssh_user_host:$remote_file";
  }
  else {
    $to   = $local_file;
    $from = "$ssh_user_host:$remote_file";
  }

  my $max_retries = 3;
  my $retry_count = 0;
  my $copy_fail   = 1;
  my $copy_command =
    "scp $MHA::NodeConst::SSH_OPT_ALIVE -P $ssh_port $from $to";
  if ($log_output) {
    $copy_command .= " >> $log_output 2>&1";
  }

  while ( $retry_count < $max_retries ) {
    if (
      system($copy_command)
      || compare_checksum(
        $local_file, $remote_file, $ssh_user, $ssh_host, $ssh_port
      )
      )
    {
      my $msg = "Failed copy or checksum. Retrying..";
      if ($log_output) {
        system("echo $msg >> $log_output 2>&1");
      }
      else {
        print "$msg\n";
      }
      $retry_count++;
    }
    else {
      $copy_fail = 0;
      last;
    }
  }
  return $copy_fail;
}

sub system_rc($) {
  my $rc   = shift;
  my $high = $rc >> 8;
  my $low  = $rc & 255;
  return ( $high, $low );
}

sub create_file_if {
  my $file = shift;
  if ( $file && ( !-f $file ) ) {
    open( my $out, ">", $file ) or croak "$!:$file";
    close($out);
  }
}

sub drop_file_if($) {
  my $file = shift;
  if ( $file && -f $file ) {
    unlink $file or croak "$!:$file";
  }
}

sub get_ip {
  my $host = shift;
  my ( $bin_addr_host, $addr_host );
  if ( defined($host) ) {
    $bin_addr_host = gethostbyname($host);
    unless ($bin_addr_host) {
      croak "Failed to get IP address on host $host!\n";
    }
    $addr_host = sprintf( "%vd", $bin_addr_host );
    return $addr_host;
  }
  return;
}

sub current_time() {
  my ( $sec, $min, $hour, $mday, $mon, $year ) = localtime();
  $mon  += 1;
  $year += 1900;
  my $val = sprintf( "%d-%02d-%02d %02d:%02d:%02d",
    $year, $mon, $mday, $hour, $min, $sec );
  return $val;
}

sub check_manager_version {
  my $manager_version = shift;
  if ( $manager_version < $MHA::NodeConst::MGR_MIN_VERSION ) {
    croak
"MHA Manager version is $manager_version, but must be $MHA::NodeConst::MGR_MIN_VERSION or higher.\n";
  }
}

sub parse_mysql_version($) {
  my $str = shift;
  my $result = sprintf( '%03d%03d%03d', $str =~ m/(\d+)/g );
  return $result;
}

sub parse_mysql_major_version($) {
  my $str = shift;
  my $result = sprintf( '%03d%03d', $str =~ m/(\d+)/g );
  return $result;
}

sub mysql_version_ge {
  my ( $my_version, $target_version ) = @_;
  my $result =
    parse_mysql_version($my_version) ge parse_mysql_version($target_version)
    ? 1
    : 0;
  return $result;
}

my @shell_escape_chars = (
  '"', '!', '#', '&', ';', '`', '|',    '*',
  '?', '~', '<', '>', '^', '(', ')',    '[',
  ']', '{', '}', '$', ',', ' ', '\x0A', '\xFF'
);

sub unescape_for_shell {
  my $str = shift;
  if ( !index( $str, '\\\\' ) ) {
    return $str;
  }
  foreach my $c (@shell_escape_chars) {
    my $x       = quotemeta($c);
    my $pattern = "\\\\(" . $x . ")";
    $str =~ s/$pattern/$1/g;
  }
  return $str;
}

sub escape_for_shell {
  my $str = shift;
  my $ret = "";
  foreach my $c ( split //, $str ) {
    my $x      = $c;
    my $escape = 0;
    foreach my $e (@shell_escape_chars) {
      if ( $e eq $x ) {
        $escape = 1;
        last;
      }
    }
    if ( $x eq "'" ) {
      $x =~ s/'/'\\''/;
    }
    if ( $x eq "\\" ) {
      $x = "\\\\";
    }
    if ($escape) {
      $x = "\\" . $x;
    }
    $ret .= "$x";
  }
  $ret = "'" . $ret . "'";
  return $ret;
}

sub escape_for_mysql_command {
  my $str = shift;
  my $ret = "";
  foreach my $c ( split //, $str ) {
    my $x = $c;
    if ( $x eq "'" ) {
      $x =~ s/'/'\\''/;
    }
    $ret .= $x;
  }
  $ret = "'" . $ret . "'";
  return $ret;
}

1;