Viewing file:  save_dns.cgi (3.65 KB) -rwxr-xr-x
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#!/usr/bin/perl
# save_dns.cgi
# Save DNS client configuration
require './net-lib.pl';
$access{'dns'} == 2 || &error($text{'dns_ecannot'});
&error_setup($text{'dns_err'});
&ReadParse();
$old_fqdn = &get_system_hostname(); # Fully-Qualified Domain Name
$old_pqdn = &get_system_hostname(1); # Partially Qualified Domain Name (short name)
$old_hostname = &get_hostname();
$in{'hostname'} =~ /^[A-Za-z0-9\.\-]+$/ ||
&error(&text('dns_ehost', &html_escape($in{'hostname'})));
$dns = { };
$new_pqdn = $in{'hostname'};
$new_pqdn =~ s/\..*$//;
for($i=0; defined($ns = $in{"nameserver_$i"}); $i++) {
$ns = $in{"nameserver_$i"};
$ns =~ s/^\s+//; $ns =~ s/\s+$//;
if ($ns) {
&check_ipaddress_any($ns) ||
&error(&text('dns_ens', &html_escape($ns)));
push(@{$dns->{'nameserver'}}, $ns);
}
}
if ($in{'name0'}) {
my $i = 0 ;
my $namekey="name$i";
while ($in{$namekey}) {
$dns->{'name'}[$i] = $in{$namekey};
my $nskey = "nameserver$i";
my $j = -1;
while (++$j < $max_dns_servers) {
$ns = $in{"${nskey}_$j"};
$ns =~ s/^\s+//; $ns =~ s/\s+$//;
if ($ns) {
&check_ipaddress_any($ns) ||
&error(&text('dns_ens', &html_escape($ns)));
push(@{$dns->{$nskey}}, $ns);
}
}
$i++;
$namekey="name$i";
}
}
if (!$in{'domain_def'}) {
@dlist = split(/\s+/, $in{'domain'});
foreach $d (@dlist) {
$d =~ /^[A-Za-z0-9\.\-]+$/ ||
&error(&text('dns_edomain', &html_escape($d)));
$new_fqdn = "$new_pqdn.$d" if !$new_fqdn;
push(@{$dns->{'domain'}}, $d);
}
@dlist || &error($text{'dns_esearch'});
}
&parse_order($dns);
&save_dns_config($dns);
&save_hostname($in{'hostname'});
if ($in{'hosts'} && ($in{'hostname'} ne $old_hostname || $new_fqdn ne $old_fqdn)) {
# Update hostname/fqdn/pqdn in /etc/hosts too
@hosts = &list_hosts();
foreach $h (@hosts) {
local $found = 0;
foreach $n (@{$h->{'hosts'}}) {
if (lc($n) eq lc($old_hostname)) {
$n = $in{'hostname'};
$found++;
}
elsif (lc($n) eq lc($old_fqdn) && $new_fqdn) {
$n = $new_fqdn;
$found++;
}
elsif (lc($n) eq lc($old_pqdn)) {
$n = $new_pqdn;
$found++;
}
}
&modify_host($h) if ($found);
}
# Update in ipnodes too
@ipnodes = &list_ipnodes();
foreach $h (@ipnodes) {
local $found = 0;
foreach $n (@{$h->{'ipnodes'}}) {
if (lc($n) eq lc($old_hostname)) {
$n = $in{'hostname'};
$found++;
}
elsif (lc($n) eq lc($old_fqdn) && $new_fqdn) {
$n = $new_fqdn;
$found++;
}
elsif (lc($n) eq lc($old_pqdn)) {
$n = $new_pqdn;
$found++;
}
}
&modify_ipnode($h) if ($found);
}
}
if (&foreign_installed("postfix") && $in{'hostname'} ne $old_hostname) {
# Update postfix mydestination too
&foreign_require("postfix");
&postfix::lock_postfix_files();
@mydests = split(/[ ,]+/, &postfix::get_current_value("mydestination"));
$idx = &indexoflc($old_hostname, @mydests);
if ($idx >= 0) {
$mydests[$idx] = $in{'hostname'};
&postfix::set_current_value("mydestination",
join(", ", @mydests));
}
$idx = &indexoflc($old_pqdn, @mydests);
if ($idx >= 0) {
$mydests[$idx] = $new_pqdn;
&postfix::set_current_value("mydestination",
join(", ", @mydests));
}
# Update postfix myorigin
$myorigin = &postfix::get_current_value("myorigin");
if ($myorigin eq $old_hostname) {
&postfix::set_current_value("myorigin",
$in{'hostname'});
}
# Update postfix myhostname
$myhostname = &postfix::get_current_value("myhostname");
if ($myhostname eq $old_hostname) {
&postfix::set_current_value("myhostname",
$in{'hostname'});
}
&postfix::unlock_postfix_files();
if (&postfix::is_postfix_running()) {
&postfix::reload_postfix();
}
}
&webmin_log("dns", undef, undef, \%in);
&redirect("");
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