#!/moira/bin/perl -Tw

# $Id$

use DBI;

# The following exit codes are defined and MUST BE CONSISTENT with the
# error codes the library uses:
$MR_DBMS_ERR = 47836421;
$MR_OCONFIG = 47836460;

$ENV{PATH} = "/bin:/usr/bin:/sbin:/usr/sbin";

$outdir = '/moira/dcm/ldap';
$outfile = '/moira/dcm/ldap.out';
umask 022;

$dbh = DBI->connect("dbi:Oracle:moira", "moira", "moira")
    || exit $MR_DBMS_ERR;

$sth0 = $dbh->prepare("SELECT u.login, u.first, u.middle, u.last, " .
		      "u.clearid, u.unix_uid, u.shell FROM users u " .
		      "WHERE (u.status = 1 OR u.status = 9)") 
    || exit $MR_DBMS_ERR;


$sth0->execute;

open(OUT, ">$outdir/users") || exit $MR_OCONFIG;

while(($login, $first, $middle, $last, $clearid, $unix_uid, 
       $shell) = $sth0->fetchrow_array) {
    $row = "dn: uid=$login,ou=users,dc=mit,dc=edu\n";
    $row .= "objectclass: top\n";
    $row .= "objectclass: person\n";
    $row .= "objectclass: organizationalperson\n";
    $row .= "objectclass: inetorgperson\n";
    $row .= "objectClass: krb5Principal\n";
    $row .= "uid: $login\n";
    $row .= "krb5PrincipalName: $login\@ATHENA.MIT.EDU\n";
    $row .= "userPassword: {KERBEROS}$login\@ATHENA.MIT.EDU\n";
    $row .= "employeeNumber: $clearid\n";
    $row .= "loginShell: $shell\n";
    $row .= "uidNumber: $unix_uid\n";
    $row .= "gidNumber: 101\n";

    if($last) {
       $sn = "sn: $last\n";
    }
    else {
       $sn = "sn: NONE\n";
    }

    if($first) {
       $cn = "cn: $first";
       $givenName = "givenName: $first";
    }
    else {
       $cn = "cn:";
       $givenName = "givenName:";
    }

    if($middle) {
       $cn .= " $middle\n";
       $givenName .= " $middle\n";
    }
    else {
       $cn .= "\n";
       $givenName .= "\n";
    }

    $sth = $dbh->prepare("SELECT f.type, f.name FROM filesys f " .
			 "WHERE f.label = '$login'") || exit $MR_DBMS_ERR;
    
    $sth->execute;
    
    if(($f_type, $f_name) = $sth->fetchrow_array) { 
	if($f_type eq "AFS") {
	    $row .= "homeDirectory: $f_name\n";
	}
    }

    $row .= $sn;
    $row .= $cn;
    $row .= $givenName;
    $row .= "ou: user\n";
    $row .= "description: user\n\n";
    $row =~ s/\0//g;

    print OUT $row;
}
close(OUT);

open(OUT, ">$outdir/groups") || exit $MR_OCONFIG;

$sth0 = $dbh->prepare("SELECT name FROM list WHERE active = 1 " .
		      "AND grouplist = 1")
    || exit $MR_DBMS_ERR;

$sth0->execute;

while (($name) = $sth0->fetchrow_array) {
    $sth = $dbh->prepare("SELECT UNIQUE u.login FROM users u, imembers i, " .
			 "list l WHERE l.name = " . $dbh->quote($name) .
			 "AND l.list_id = i.list_id " .
			 "AND i.member_type = 'USER' " .
			 "AND (u.status = 1 OR u.status = 9) " .
			 "AND i.member_id = u.users_id") || exit $MR_DBMS_ERR;
    $sth->execute;

    $members = 0;
    while (($member) = $sth->fetchrow_array) {
	if(!$members) {
	    $row = "dn: cn=$name,ou=groups,dc=mit,dc=edu\n";
	    $row .= "objectClass: top\n";
	    $row .= "objectClass: groupOfUniqueNames\n";
	    $row .= "cn: $name\n";
	    $row =~ s/\0//g;
	    print OUT $row;

	    $members = 1;
	}

	$row = "uniqueMember: uid=$member,ou=users,dc=mit,dc=edu\n";
	$row =~ s/\0//g;
	print OUT $row;
    }

    print OUT "\n";
}
close(OUT);

system("cd $outdir && tar cf $outfile .") == 0 || exit $MR_OCONFIG;

$dbh->disconnect;

exit 0;