113 lines
3.6 KiB
Perl
Executable File
113 lines
3.6 KiB
Perl
Executable File
#!/usr/bin/env perl
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#
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# Copyright (c) 2023 Mischa Peters <mischa @ openbsd.amsterdam>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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use 5.024;
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use strict;
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use warnings;
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use autodie;
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use Fcntl qw(:flock);
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use File::Basename;
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use File::Copy;
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use POSIX qw(strftime);
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use Net::IP;
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my $ipv4_range = new Net::IP("46.23.80.0/20");
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my $ipv6_range = new Net::IP("2a03:6000::/29");
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my $nsd = "/var/nsd/zones/master";
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my $zonefile = "high5.nl";
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my $workdir = dirname($0);
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my $serial;
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my $serial_prev;
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opendir my $dh, "${workdir}/records";
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while (my $file = readdir $dh) {
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chomp $file;
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next if $file =~ /^\./;
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open my $fh_ptr, '<', "${workdir}/records/$file";
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my $replace = <$fh_ptr>;
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chomp $replace;
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my ($_hostname, $_in, $_a, $match) = split(' ', $replace, 4);
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close $fh_ptr;
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if (qx(rlog ${nsd}/${zonefile} | grep 'locked by') =~ m/locked by/) {
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_log("$file zone file locked, trying again later...");
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next;
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} else {
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open my $fh_in, '<', "${nsd}/$zonefile";
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open my $fh_out, '>', "${workdir}/zonefiles/$zonefile";
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while (my $row = <$fh_in>) {
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chomp $row;
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if ($row =~ m/^\s*(\d+)\s*; serial$/) {
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$serial = $serial_prev = $1;
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my $timestamp = strftime ("%Y%m%d", localtime()) . "01";
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if ($serial < $timestamp) {
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$serial = $timestamp;
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} else {
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$serial++;
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}
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$row =~ s/${serial_prev}/${serial}/;
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}
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if ($row =~ m/^[0-9a-z-]+\s+IN\s+A{1,4}\s+${match}( ;.*)?$/) {
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if ($1) {
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my $comment = $1;
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$row =~ s/^.*\s+${match}.*$/${replace}${comment}/;
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} else {
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$row =~ s/^.*\s+${match}.*$/${replace}/;
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}
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}
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print $fh_out "$row\n";
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}
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close $fh_in;
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close $fh_out;
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(my $diff = qx(diff ${nsd}/${zonefile} ${workdir}/zonefiles/${zonefile} | wc -l)) =~ s/^\s*(.*?)\s*$/$1/;
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if ($diff == 8) {
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_log("$file diff within limits ($diff), $serial_prev -> $serial");
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copy("${nsd}/${zonefile}", "${workdir}/zonefiles-archive/${zonefile}-${serial}");
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qx(co -q -l ${nsd}/${zonefile});
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copy("${workdir}/zonefiles/${zonefile}", "${nsd}/${zonefile}");
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qx(ci -q -u -m"updated for ${file}" ${nsd}/${zonefile});
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move("${workdir}/records/${file}", "${workdir}/records-archive/${file}-${serial}");
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qx(${workdir}/../bin/auto-sign.sh ${zonefile});
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qx(rcctl reload nsd);
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qx(rdist -f /etc/Distfile) if (-r '/etc/Distfile');
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open my $fh_email, '|-', '/usr/sbin/sendmail -t';
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print $fh_email "To: ard\@high5.nl\n";
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print $fh_email "From: ard\@high5.nl\n";
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print $fh_email "Subject: High5! A(AAA) $zonefile\n";
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print $fh_email "Content-Type: text/plain; charset=utf-8\n\n";
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print $fh_email "$serial_prev -> $serial\n$file\n$replace\n";
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close $fh_email;
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} else {
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_log("$file diff is outside limits ($diff), cleaning up");
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unlink("${workdir}/records/${file}", "${workdir}/zonefiles/${zonefile}");
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}
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}
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}
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sub _log {
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my ($msg) = @_;
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open my $fh, '>>', '/var/log/ard.log';
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flock $fh, LOCK_EX;
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print $fh sprintf("%s %s: %s \n", strftime("%b %d %H:%M:%S", localtime), basename($0), $msg);
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close $fh;
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}
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