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#!/usr/bin/perl

use 5.010_000;
use strict;
use warnings;
use utf8;

=head1 NAME

fripost-searchalias - List matching aliases

=head1 SYNOPSIS

B<fripost-searchalias> [B<--debug>] [B<--from>] [B<--goto>] [I<goto/from>]

=head1 DESCRIPTION

B<fripost-seardomain> list virtual aliases matching exactly I<from>,
targetting to I<goto>.
Wildcards I<*> can appear in the login part of I<from>, to match zero
or more characters.
If no I<from> is given, list all aliases whose target matches I<goto>.
If neither I<goto> nor I<from> are given, B<fripost-searchalias> list
all existing virtual aliases.

=head1 OPTIONS

=over 8

=item B<--server_host=>I<host>

The LDAP URI to connect to.
The default value is read from the configuration file, see B<CONFIGURATION>.

=item B<--bind_dn=>I<binddn>

The Distinguished Name (DN) to bind to the LDAP directory.
(If not set, B<fripost-searchalias> binds anonymously.)
The default value is read from the configuration file, see B<CONFIGURATION>.

=item B<--bind_pw=>I<password>

The password to to bind with.
The default value is read from the configuration file, see B<CONFIGURATION>.

=item B<--base_dn=>I<basedn>

The root DN for everything done by B<fripost-searchalias>.
The default value is read from the configuration file, see B<CONFIGURATION>.

=item B<--debug>

Debug mode.

=item B<--from>

Match on 'from' addresses.
The default is to match both the 'from' and 'goto' address.

=item B<--goto>

Match on 'goto' addresses.
The default is to match both the 'from' and 'goto' address.

=back

=head1 CONFIGURATION

The configuration is read from the file C<$HOME/.fripost.yml>.
Valid keys include:

=over 4

=item I<server_host>

The LDAP URI to connect to. Defaults to C<ldap://127.0.0.1:389>.

=item I<bind_dn>

The Distinguished Name (DN) to bind to the LDAP directory.
(If not set, B<fripost-searchalias> binds anonymously.)

=item I<bind_pw>

The password to to bind with.

=item I<base_dn>

The root DN for everything done by B<fripost-searchalias>.

=back

=cut

use FindBin qw($Bin);
use lib "$Bin/lib";

use Env qw /HOME/;
use File::Spec::Functions;

use Fripost::Schema;
use Getopt::Long qw /:config noauto_abbrev no_ignore_case
                             gnu_compat bundling permute nogetopt_compat
                             auto_version auto_help/;
use Pod::Usage;
use YAML::Syck;


## Get command line options
our $conf = LoadFile( catfile ($HOME, '.fripost.yml') );

GetOptions(
    'server_host=s' => \$conf->{server_host},
    'base_dn=s'     => \$conf->{base_dn},
    'bind_dn=s'     => \$conf->{bind_dn},
    'bind_pw=s'     => \$conf->{bind_pw},
    'pretend'       => \$conf->{pretend},
    'debug'         => \$conf->{debug},
    'from'          => \$conf->{from},
    'goto'          => \$conf->{goto},
    'man'           => sub { pod2usage(-exitstatus => 0,
                                       -verbose => 2) }
) or pod2usage(2);


# Connect to the LDAP server
my $ldap = Fripost::Schema->new( $conf );

sub perform_search {
    my %alias = @_;

    foreach my $alias ($ldap->alias->search( \%alias )->entries) {
        say "From:     " . (join ', ', @{$alias->{address}});
        say "Goto:     " . $alias->{goto};
        say "IsActive: " . $alias->{isActive};
        say "--------------------------------"
    }
}

my $f = $conf->{from};
my $g = $conf->{goto};
my $from ||= $f || not $f && not $g;
my $goto ||= $g || not $f && not $g;

if ($g) {
    say "   Searchin 'goto'";
    perform_search(goto    => $ARGV[0]);
}

if ($f) {
    say "   Searchin 'from'";
    perform_search(address => $ARGV[0]);

    my ($u,$d) = split /\@/, $ARGV[0], 2;
    $d = $u if (defined $u) and not (defined $d);
    $ldap->domain->search({ domain => $d })->count
        or die "Error: Unknown domain `$d'.\n";
} 

$ldap->unbind();


=head1 AUTHOR

Guilhem Moulin C<< <guilhem at fripost.org> >>

=head1 COPYRIGHT

Copyright 2012 Guilhem Moulin.

=head1 LICENSE

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

=cut