/usr/share/fusioninventory/lib/FusionInventory/Agent/Storage.pm is in fusioninventory-agent 1:2.3.10.1-1.
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 | package FusionInventory::Agent::Storage;
use strict;
use warnings;
use Config;
use English qw(-no_match_vars);
use File::Path qw(mkpath);
use Storable;
use FusionInventory::Agent::Logger;
sub new {
my ($class, %params) = @_;
die "no directory parameter" unless $params{directory};
if (!-d $params{directory}) {
# {error => \my $err} is not supported on RHEL 5,
# we let mkpath call die() itself
# http://forge.fusioninventory.org/issues/1817
eval {
mkpath($params{directory});
};
die "Can't create $params{directory}: $EVAL_ERROR" if $EVAL_ERROR;
}
if (! -w $params{directory}) {
die "Can't write in $params{directory}";
}
my $self = {
logger => $params{logger} ||
FusionInventory::Agent::Logger->new(),
directory => $params{directory}
};
bless $self, $class;
return $self;
}
sub getDirectory {
my ($self) = @_;
return $self->{directory};
}
sub _getFilePath {
my ($self, %params) = @_;
die "no name parameter given" unless $params{name};
return $self->{directory} . '/' . $params{name} . '.dump';
}
sub has {
my ($self, %params) = @_;
my $file = $self->_getFilePath(%params);
return -f $file;
}
sub save {
my ($self, %params) = @_;
my $file = $self->_getFilePath(%params);
store($params{data}, $file) or warn;
}
sub restore {
my ($self, %params) = @_;
my $file = $self->_getFilePath(%params);
return unless -f $file;
my $result;
eval {
$result = retrieve($file);
};
if ($EVAL_ERROR) {
$self->{logger}->error("Can't read corrupted $file, removing it");
unlink $file;
}
return $result;
}
sub remove {
my ($self, %params) = @_;
my $file = $self->_getFilePath(%params);
unlink $file or $self->{logger}->error("can't unlink $file");
}
1;
__END__
=head1 NAME
FusionInventory::Agent::Storage - A data serializer/deserializer
=head1 SYNOPSIS
my $storage = FusionInventory::Agent::Storage->new(
directory => '/tmp'
);
my $data = $storage->restore(
module => "FusionInventory::Agent"
);
$data->{foo} = 'bar';
$storage->save(data => $data);
=head1 DESCRIPTION
This is the object used by the agent to ensure data persistancy between
invocations.
Each data structure is saved in a file, whose name is automatically determined
according to object class name. An optional index number can be used to
differentiate between consecutives usages.
=head1 METHODS
=head2 new(%params)
The constructor. The following parameters are allowed, as keys of the %params
hash:
=over
=item I<logger>
the logger object to use
=item I<directory>
the directory to use for storing data (mandatory)
=back
=head2 getDirectory
Returns the underlying directory for this storage.
=head2 has(%params)
Returns true if a saved data structure exists. The following arguments are
allowed:
=over
=item I<name>
The file name to use for saving the data structure (mandatory).
=back
=head2 save(%params)
Save given data structure. The following parameters are allowed, as keys of the
%params hash:
=over
=item I<name>
The file name to use for saving the data structure (mandatory).
=back
=head2 restore(%params)
Restore a saved data structure. The following parameters are allowed, as keys
of the %params hash:
=over
=item I<name>
The file name to use for saving the data structure (mandatory).
=back
=head2 remove(%params)
Delete the file containing a seralized data structure for a given module. The
following parameters are allowed, as keys of the %params hash:
=over
=item I<name>
The file name to use for saving the data structure (mandatory).
=back
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