##  $Id: Config.pm.in 8357 2009-02-27 17:56:00Z iulius $
##
##  Perl module which sets up any and all variables that an
##  INN Perl script might need.
##

package INN::Config;

use warnings;
use Exporter;

our @ISA = qw(Exporter);
our $VERSION = 2.5.2;


##  First, two necessary variables (listed below in @DIRVAR).
our $prefix = '/usr/local/news';
our $exec_prefix = "${prefix}";


##  Then, process the variables provided by innconfval.
my @INNCONFVAR = ();
my @values = `${exec_prefix}/bin/innconfval -p`;
foreach $line (@values) {
  eval 'our '.$line;
  if ($line =~ /^(.*?) = /m) {
    push(@INNCONFVAR, $1);
  }
}


##  Paths of useful directories.
my @DIRVAR = qw($prefix $exec_prefix $newshome $home $newslib
$newsbin $controlprogs $newslbin $newsetc $spooldir
$archivedir $spool $incoming $spoolnews $badnews
$batch $overviewdir $most_logs $locks $innddir $tmpdir
$spooltemp $path);
our $newshome = $pathnews;
our $home = $pathnews;
our $newslib = "${exec_prefix}/lib";
our $newsbin = $pathbin;
our $controlprogs = $pathcontrol;
our $newslbin = "$pathnews/local";
our $newsetc = $pathetc;
our $spooldir = $pathspool;
our $archivedir = $patharchive;
our $spool = $patharticles;
our $incoming = $pathincoming;
our $spoolnews = $pathincoming;
our $badnews = "$pathincoming/bad";
our $batch = $pathoutgoing;
our $overviewdir = $pathoverview;
our $most_logs = $pathlog;
our $locks = $pathrun;
our $innddir = $pathrun;
our $tmpdir = $pathtmp;
our $spooltemp = $pathtmp;
our $path = $ENV{'PATH'} || '';
$path = "${newslbin}:${newsbin}:${path}:/bin:/usr/bin";

##  Paths of useful files.
my @FILESVAR = qw($active $activetimes $newactive $oldactive
$history $newsgroups $ctlfile $ctlwatch $localgroups
$newsfeeds $path_motd $expirectl $errlog $log);
our $active = "${pathdb}/active";
our $activetimes = "${pathdb}/active.times";
our $newactive = "${pathdb}/active.tmp";
our $oldactive = "${pathdb}/active.old";
our $history = "${pathdb}/history";
our $newsgroups = "${pathdb}/newsgroups";
our $ctlfile = "${newsetc}/control.ctl";
our $ctlwatch = "${newsetc}/innwatch.ctl";
our $localgroups = "${newsetc}/localgroups";
our $newsfeeds = "${newsetc}/newsfeeds";
our $path_motd = "${newsetc}/motd.news";
our $expirectl = "${newsetc}/expire.ctl";
our $errlog = "${most_logs}/errlog";
our $log = "${most_logs}/news";


##  Paths of useful programs.
my @PROGVAR = qw($inews $innconfval $innd $inndf $innwatch
$rnews $perl_startup_innd $perl_filter_innd $perl_filter_nnrpd
$python_filter_innd $path_python_inn_module $path_tcl_startup
$path_tcl_filter);
our $inews = "${newsbin}/inews";
our $innconfval = "${newsbin}/innconfval";
our $innd = "${newsbin}/innd";
our $inndf = "${newsbin}/inndf";
our $innwatch = "${newsbin}/innwatch";
our $rnews = "${newsbin}/rnews";
our $perl_startup_innd = "$pathfilter/startup_innd.pl";
our $perl_filter_innd = "$pathfilter/filter_innd.pl";
our $perl_filter_nnrpd = "$pathfilter/filter_nnrpd.pl";
our $python_filter_innd = "$pathfilter/filter_innd.py";
our $path_python_inn_module = "$pathfilter/INN.py";
our $path_tcl_startup = "$pathfilter/startup.tcl";
our $path_tcl_filter = "$pathfilter/filter.tcl";


##  Paths of lock/PID/status files.
my @LOCKVAR = qw($daily $newscontrol $nntpconnect $serverpid
$innwstatus $watchpid $tempsock $tempsockdir);
our $daily = "${locks}/LOCK.news.daily";
our $newscontrol = "${innddir}/control";
our $nntpconnect = "${innddir}/nntpin";
our $serverpid = "${innddir}/innd.pid";
our $innwstatus = "${innddir}/innwatch.status";
our $watchpid = "${innddir}/innwatch.pid";
(our $tempsock = "${innddir}/ctlinndXXXXXX") =~ s!.*/(.*)XXXXXX$!$1*!;
(our $tempsockdir = "${innddir}/ctlinndXXXXXX") =~ s!/[^/]*$!!;


##  Paths of external used programs.
my @EXTPROGVAR = qw($awk $egrep $gpgv $perl $pgp $sed
$sort $getftp $uustat $uux);
our $awk = 'nawk';
our $egrep = '/usr/bin/grep -E';
our $gpgv = '';
our $perl = '/usr/bin/perl';
our $pgp = '';
our $sed = '/usr/bin/sed';
our $sort = '/usr/bin/sort';
our $getftp = '${exec_prefix}/bin/simpleftp';
our $uustat = '';
our $uux = 'uux';


##  Paths of external used compressors.
my @EXTCOMPVAR = qw($bzip2 $compress $gzip $uncompress
$log_compress $z);
our $bzip2 = '/usr/bin/bzip2';
our $compress = '/usr/bin/compress';
our $gzip = '/usr/bin/gzip';
our $uncompress = '/usr/bin/gzip -d';
our $log_compress = '/usr/bin/gzip';
our $z = '.gz';


##  Set up some useful system file information.
my @SYSVAR = qw($newsmaster $newsuser $newsgroup
$filemode $inewsmode $rnewsmode $umask $syslog_facility);
our $newsmaster = 'usenet';
our $newsuser = ${runasuser};
our $newsgroup = ${runasgroup};
our $filemode = 0664;      # It is a number.
our $inewsmode = 0550;
our $rnewsmode = 0500;
our $umask = 02;
our $syslog_facility = lc('LOG_NEWS');
$syslog_facility =~ s/log_//;


##  Set up some useful parameters.
my @PARAMVAR = qw($do_dbz_tagged_hash);
our $do_dbz_tagged_hash = 'DONT';


##  Set up some environment values.
if ($ovmethod && $ovmethod eq "ovdb") {
    $ENV{'DB_HOME'} = $pathoverview;
}
$ENV{'HOME'} = ${pathnews};
$ENV{'INNDDIR'} = $innddir;
$ENV{'LOCKS'} = $locks;
$ENV{'MOST_LOGS'} = $most_logs;
$ENV{'NEWSBIN'} = $newsbin;
$ENV{'NEWSETC'} = $newsetc;
$ENV{'NEWSHOME'} = $pathnews;
$ENV{'NEWSLBIN'} = ${newslbin};
$ENV{'NEWSLIB'} = $newslib;
$ENV{'PATH'} = $path;
$ENV{'SPOOLDIR'} = $spooldir;
$ENV{'TMPDIR'} = $pathtmp;


##  Set up the locale.
$ENV{'LC_CTYPE'} = "C";


##  Set up umask.
umask 02;


##  This array will contain what it is possible to export.
our @EXPORT_OK = (@INNCONFVAR, @DIRVAR, @FILESVAR, @PROGVAR,
@LOCKVAR, @EXTPROGVAR, @EXTCOMPVAR, @SYSVAR, @PARAMVAR);


##  That's all.
1;

__END__

=head1 NAME

Config.pm - Export all the variables an INN Perl script might need

=head1 DESCRIPTION

This Perl module sets up any and all the variables that an INN Perl
script might need.  More particularly, it allows to use F<inn.conf>
variables:  they are all provided by B<innconfval>, as well as
the version of INN (in the variable C<$INN::Config::version>).
Other useful variables are also provided (directories, files,
programs, masks, parameters) and you should have a look at the source
code of the module to see what you can use in your Perl scripts.

You only have to declare the module at the beginning of them:

    use lib '<pathnews>/lib/perl';
    use INN::Config;

Then, you can for instance use:

    print $INN::Config::localmaxartsize;

to print the value of I<localmaxartsize> as it is set in F<inn.conf>.

You can also specify a version when you import the module.  If
you write:

    use INN::Config 2.5.0;

only versions of INN superior to 2.5.0 will be able to run the Perl
script.

It is also possible to import the variables directly in your namespace
if you specify what you want to import:

    use INN::Config qw($localmaxartsize $pathbin);

Note that a legacy F<innshellvars.pl> is also provided in I<pathnews>/lib
for compatibility reasons with old Perl scripts not shipped with INN.
It was used by versions of INN anterior to 2.5.0.  The corresponding
scripts for Shell and Tcl are, however, still in use:  F<innshellvars>
and F<innshellvars.tcl>.  They offer the same capabilities as this
module.

=head1 HISTORY

F<innshellvars.pl> was written by James Brister <brister@vix.com>
for InterNetNews in 1996.  It was converted to the INN::Config Perl
module by Julien Elie in 2007.

$Id: Config.pm.in 8357 2009-02-27 17:56:00Z iulius $

=head1 SEE ALSO

inn.conf(5), innconfval(1), perl(1).

=cut
