From ca19c9b9d3f40739a201e8100c22f5cba3730b9e Mon Sep 17 00:00:00 2001
From: ivan <ivan>
Date: Wed, 7 Apr 2004 11:39:15 +0000
Subject: [PATCH] automatically update reverse-ARPA records (Bug#462) /
 recognize SOA records with the fqdn as well as @

---
 FS/FS/Conf.pm          |  7 +++++
 FS/FS/domain_record.pm | 78 ++++++++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 79 insertions(+), 6 deletions(-)

diff --git a/FS/FS/Conf.pm b/FS/FS/Conf.pm
index d8191c278..905c60d2b 100644
--- a/FS/FS/Conf.pm
+++ b/FS/FS/Conf.pm
@@ -1199,6 +1199,13 @@ httemplate/docs/config.html
     'type'        => 'checkbox',
   },
 
+  {
+    'key'         => 'disable_autoreverse',
+    'section'     => 'BIND',
+    'description' => 'Disable automatic synchronization of reverse-ARPA entries.',
+    'type'        => 'checkbox',
+  },
+
 );
 
 1;
diff --git a/FS/FS/domain_record.pm b/FS/FS/domain_record.pm
index ea0c48d4f..2a30594da 100644
--- a/FS/FS/domain_record.pm
+++ b/FS/FS/domain_record.pm
@@ -1,7 +1,8 @@
 package FS::domain_record;
 
 use strict;
-use vars qw( @ISA $noserial_hack );
+use vars qw( @ISA $noserial_hack $DEBUG );
+use FS::Conf;
 #use FS::Record qw( qsearch qsearchs );
 use FS::Record qw( qsearchs dbh );
 use FS::svc_domain;
@@ -9,6 +10,8 @@ use FS::svc_www;
 
 @ISA = qw(FS::Record);
 
+$DEBUG = 1;
+
 =head1 NAME
 
 FS::domain_record - Object methods for domain_record records
@@ -110,6 +113,18 @@ sub insert {
     }
   }
 
+  my $conf = new FS::Conf;
+  if ( $self->rectype =~ /^A$/ && ! $conf->exists('disable_autoreverse') ) {
+    my $reverse = $self->reverse_record;
+    if ( $reverse && ! $reverse->recnum ) {
+      my $error = $reverse->insert;
+      if ( $error ) {
+        $dbh->rollback if $oldAutoCommit;
+        return "error adding corresponding reverse-ARPA record: $error";
+      }
+    }
+  }
+
   $dbh->commit or die $dbh->errstr if $oldAutoCommit;
 
   '';
@@ -153,6 +168,18 @@ sub delete {
     }
   }
 
+  my $conf = new FS::Conf;
+  if ( $self->rectype =~ /^A$/ && ! $conf->exists('disable_autoreverse') ) {
+    my $reverse = $self->reverse_record;
+    if ( $reverse && $reverse->recnum && $reverse->recdata eq $self->zone.'.' ){
+      my $error = $reverse->delete;
+      if ( $error ) {
+        $dbh->rollback if $oldAutoCommit;
+        return "error removing corresponding reverse-ARPA record: $error";
+      }
+    }
+  }
+
   $dbh->commit or die $dbh->errstr if $oldAutoCommit;
 
   '';
@@ -284,10 +311,16 @@ sub increment_serial {
 
   my $soa = qsearchs('domain_record', {
     svcnum  => $self->svcnum,
-    reczone => '@', #or full domain ?
+    reczone => '@',
+    recaf   => 'IN',
+    rectype => 'SOA', } )
+  || qsearchs('domain_record', {
+    svcnum  => $self->svcnum,
+    reczone => $self->svc_domain->domain.'.',
     recaf   => 'IN',
     rectype => 'SOA', 
-  } ) or return "soa record not found; can't increment serial";
+  } )
+  or return "soa record not found; can't increment serial";
 
   my $data = $soa->recdata;
   $data =~ s/(\(\D*)(\d+)/$1.($2+1)/e; #well, it works.
@@ -328,11 +361,44 @@ sub zone {
   $zone;
 }
 
-=back
+=item reverse_record 
+
+Returns the corresponding reverse-ARPA record as another FS::domain_record
+object.  If the specific record does not exist in the database but the 
+reverse-ARPA zone itself does, an appropriate new record is created.  If no
+reverse-ARPA zone is available at all, returns false.
+
+(You can test whether or not record itself exists in the database or is a new
+object that might need to be inserted by checking the recnum field)
 
-=head1 VERSION
+Mostly used by the insert and delete methods - probably should see them for
+examples.
 
-$Id: domain_record.pm,v 1.16 2003-08-05 00:20:43 khoff Exp $
+=cut
+
+sub reverse_record {
+  my $self = shift;
+  warn "reverse_record called\n" if $DEBUG;
+  #should support classless reverse-ARPA ala rfc2317 too
+  $self->recdata =~ /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/
+    or return '';
+  my $domain = "$3.$2.$1.in-addr.arpa"; 
+  my $ptr_reczone = $4;
+  warn "reverse_record: searching for domain: $domain\n" if $DEBUG;
+  my $svc_domain = qsearchs('svc_domain', { 'domain' => $domain } )
+    or return '';
+  warn "reverse_record: found domain: $domain\n" if $DEBUG;
+  my %hash = (
+    'svcnum'  => $svc_domain->svcnum,
+    'reczone' => $ptr_reczone,
+    'recaf'   => 'IN',
+    'rectype' => 'PTR',
+  );
+  qsearchs('domain_record', \%hash )
+    or new FS::domain_record { %hash, 'recdata' => $self->zone.'.' };
+}
+
+=back
 
 =head1 BUGS
 
-- 
2.11.0