hobbit-plugins 20170219 / usr / lib / xymon / client / ext / dirtyetc

This file is indexed.

/usr/lib/xymon/client/ext/dirtyetc is in hobbit-plugins 20170219.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below. 

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#!/usr/bin/perl -w

# Copyright (C) 2010-2012 Axel Beckert <abe@debian.org>
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.

my $ext_etc_config = "/etc/xymon";
use strict;
use Hobbit qw(file_to_list_of_regexps);

my $dirty_etc_ok_file = $ext_etc_config."/dirty_etc_ok";
my $dphys_config_list = "/etc/dphys-config.list";
my @dirty_etc_ok = file_to_list_of_regexps($dirty_etc_ok_file);
my @dphys_config_ok = ();

my $DEBSUMS = '/usr/bin/debsums';
my $SUDO = '/usr/bin/sudo';

$ENV{'PATH'} = '/bin:/sbin:/usr/bin:/usr/sbin';
$ENV{'LC_ALL'} = 'C';
delete @ENV{'IFS', 'CDPATH', 'ENV', 'BASH_ENV'};

my $bb = new Hobbit('dirtyetc');

###
### Checks for sudo and debsums
###
if (!-x $SUDO) {
    $bb->color_line ('yellow',
"$SUDO not found or not executable.

This dirtyetc check should run debsums with root rights. See the file
/etc/sudoers.d/xymon for how debsums would be run with root rights
via sudo.

");

    $SUDO = '';
}

if (!-x $DEBSUMS) {
    $bb->color_line ('rot',
"$DEBSUMS not found or not executable.

This dirtyetc plugin has been enabled, but debsums seems not
installed. This plugin depends on debsums.

");

    $bb->send();
    exit 0;
}

###
### Parse dphys-config.list
###

if (-e $dphys_config_list) {
    if (!-r $dphys_config_list) {
	$bb->color_line('yellow', "$dphys_config_list exists, but is not readable\n");
    } else {
	open(my $dpc_fh, '<', $dphys_config_list)
	    or croak("Assertion: $dphys_config_list readable but I still can't open it? WTF!");
	while (my $dpc_line = <$dpc_fh>) {
	    chomp($dpc_line);
	    # Ignore blank lines, comment lines and files which are to
	    # be deleted by dphys-config
	    next if $dpc_line =~ /^#|^\s*$|^-:/;

	    my ($filename, $destination, $trigger) = split(/:/, $dpc_line);
	    if (-d $destination) {
		if ($destination =~ m(/$)) {
		    push(@dphys_config_ok, qr(^$destination$filename$));
		} else {
		    push(@dphys_config_ok, qr(^$destination/$filename$));
		}
	    } elsif (-f $destination) {
		push(@dphys_config_ok, qr(^$destination$));
	    } else {
		# We can ignore non-existent files, can we?
	    }
	}
    }
}

###
### Call debsums
###

my $command = "$DEBSUMS -ec 2>&1";
open(my $debsums_fh, '-|', "$SUDO $command") or die "Can't execute $SUDO $command";
my @changed_conffiles = <$debsums_fh>;
close($debsums_fh);
chomp(@changed_conffiles);

my (@ok, @ok_dpc, @bad, @bad_config);

foreach my $changed_conffile (@changed_conffiles) {
    # Check if that's ok
    if ($changed_conffile =~ /Permission denied/) {
	push(@bad_config, $changed_conffile);
    } elsif (grep { $changed_conffile =~ $_ } @dirty_etc_ok) {
	push(@ok, $changed_conffile);
    } elsif (grep { $changed_conffile =~ $_ } @dphys_config_ok) {
	push(@ok_dpc, $changed_conffile);
    } else {
	push(@bad, $changed_conffile);
    }
}

show_file_list('yellow', 'dirtyetc plugin configuration issues', @bad_config);
show_file_list('yellow', 'Configuration files which are modified but should not be', @bad);
show_file_list('green', 'Configuration files which are ok to be modified', @ok);
show_file_list('green', 'Configuration files which are modified, but distributed via dphys-config', @ok_dpc);

###
### Finally send the result
###

$bb->send;

###
### Subroutines
###

sub show_file_list {
    my ($color, $info, @list) = @_;

    return unless @list;

    $bb->color_line($color, "$info:\n\n");

    foreach my $filename (@list) {
	$bb->print("   $filename\n");
    }

    $bb->print("\n");
}

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