05928e8cf6
Squashed commit of the following: commit789c528fcfAuthor: Oliver Gorwits <oliver@cpan.org> Date: Mon Apr 1 19:31:07 2013 +0100 update manifest and fix typo commitb95d0951f2Author: Oliver Gorwits <oliver@cpan.org> Date: Mon Apr 1 19:22:41 2013 +0100 refactor ::Util namespace commita8dde50343Author: Oliver Gorwits <oliver@cpan.org> Date: Sun Mar 31 13:45:27 2013 +0100 no need to search for device - IP should already be exact
90 lines
2.0 KiB
Perl
90 lines
2.0 KiB
Perl
package App::Netdisco::Util::Device;
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use Dancer qw/:syntax :script/;
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use Dancer::Plugin::DBIC 'schema';
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use NetAddr::IP::Lite ':lower';
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use base 'Exporter';
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our @EXPORT = ();
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our @EXPORT_OK = qw/
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get_device
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is_discoverable
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/;
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our %EXPORT_TAGS = (all => \@EXPORT_OK);
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=head1 NAME
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App::Netdisco::Util::Device
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=head1 DESCRIPTION
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A set of helper subroutines to support parts of the Netdisco application.
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There are no default exports, however the C<:all> tag will export all
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subroutines.
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=head1 FUNCTIONS
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=head2 get_device( $ip )
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Given an IP address, returns a L<DBIx::Class::Row> object for the Device in
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the Netdisco database. The IP can be for any interface on the device.
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Returns C<undef> if the device or interface IP is not known to Netdisco.
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=cut
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sub get_device {
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my $ip = shift;
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my $alias = schema('netdisco')->resultset('DeviceIp')
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->search({alias => $ip})->first;
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return if not eval { $alias->ip };
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return schema('netdisco')->resultset('Device')
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->find({ip => $alias->ip});
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}
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=head2 is_discoverable( $ip )
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Given an IP address, returns C<true> if Netdisco on this host is permitted by
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the local configuration to discover the device.
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The configuration items C<discover_no> and C<discover_only> are checked
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against the given IP.
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Returns false if the host is not permitted to discover the target device.
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=cut
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sub is_discoverable {
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my $q = shift;
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my $device = get_device($q) or return 0;
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my $addr = NetAddr::IP::Lite->new($device->ip);
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my $discover_no = setting('discover_no') || [];
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my $discover_only = setting('discover_only') || [];
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if (scalar @$discover_no) {
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foreach my $item (@$discover_no) {
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my $ip = NetAddr::IP::Lite->new($item) or return 0;
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return 0 if $ip->contains($addr);
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}
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}
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if (scalar @$discover_only) {
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my $okay = 0;
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foreach my $item (@$discover_only) {
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my $ip = NetAddr::IP::Lite->new($item) or return 0;
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++$okay if $ip->contains($addr);
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}
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return 0 if not $okay;
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}
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return 1;
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}
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1;
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