[PATCH 1/3] add option for selective PTR generation on hosts.cgi

["Peter Müller" <peter.mueller@ipfire.org>]

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In some cases, it might be useful to create an additional
host (i.e. for round robin loadbalancing) without assigning
another PTR to the IP address specified.

This patch introduces the ability to check or uncheck
PTR generation for each host individually.

Partially fixes #12030

Signed-off-by: Peter Müller <peter.mueller(a)ipfire.org>
---
 html/cgi-bin/hosts.cgi | 52 +++++++++++++++++++++++++++++++++++++-------------
 langs/de/cgi-bin/de.pl |  2 ++
 langs/en/cgi-bin/en.pl |  2 ++
 3 files changed, 43 insertions(+), 13 deletions(-)

diff --git a/html/cgi-bin/hosts.cgi b/html/cgi-bin/hosts.cgi
index 41fe8a5b6..973c480b3 100644
--- a/html/cgi-bin/hosts.cgi
+++ b/html/cgi-bin/hosts.cgi
@@ -2,9 +2,9 @@
 ###############################################################################
 #                                                                             #
 # IPFire.org - A linux based firewall                                         #
-# Copyright (C) 2007  Michael Tremer & Christian Schmidt                      #
+# Copyright (C) 2007-2019  IPFire Team  <info(a)ipfire.org>                     #
 #                                                                             #
-# This program is free software you can redistribute it and/or modify        #
+# This program is free software you can redistribute it and/or modify         #
 # it under the terms of the GNU General Public License as published by        #
 # the Free Software Foundation, either version 3 of the License, or           #
 # (at your option) any later version.                                         #
@@ -50,9 +50,10 @@ our %settings = ();
 #Must not be saved !
 $settings{'EN'} = '';			# reuse for dummy field in position zero
 $settings{'IP'} = '';
-$settings{'HOST'} = '';			
-$settings{'DOM'} = '';			
-my @nosaved=('EN','IP','HOST','DOM');	# List here ALL setting2 fields. Mandatory
+$settings{'HOST'} = '';
+$settings{'DOM'} = '';
+$settings{'PTR'} = '';
+my @nosaved=('EN','IP','HOST','DOM','PTR');	# List here ALL setting2 fields. Mandatory
     
 $settings{'ACTION'} = '';		# add/edit/remove
 $settings{'KEY1'} = '';			# point record for ACTION
@@ -78,6 +79,10 @@ if (open(FILE, "$datafile")) {
 ## Settings1 Box not used...
 &General::readhash("${General::swroot}/main/settings", \%settings);
 
+# Set PTR to off if filed was not received
+if ($settings{'PTR'} eq '') {
+	$settings{'PTR'} = 'off';
+}
 
 ## Now manipulate the multi-line list with Settings2
 # Basic actions are:
@@ -122,13 +127,12 @@ if ($settings{'ACTION'} eq $Lang::tr{'add'}) {
         $errormessage = $Lang::tr{'invalid domain name'};
     }
 
-
     unless ($errormessage) {
 	if ($settings{'KEY1'} eq '') { #add or edit ?
-	    unshift (@current, "$settings{'EN'},$settings{'IP'},$settings{'HOST'},$settings{'DOM'}\n");
+	    unshift (@current, "$settings{'EN'},$settings{'IP'},$settings{'HOST'},$settings{'DOM'},$settings{'PTR'}\n");
 	    &General::log($Lang::tr{'hosts config added'});
 	} else {
-	    @current[$settings{'KEY1'}] = "$settings{'EN'},$settings{'IP'},$settings{'HOST'},$settings{'DOM'}\n";
+	    @current[$settings{'KEY1'}] = "$settings{'EN'},$settings{'IP'},$settings{'HOST'},$settings{'DOM'},$settings{'PTR'}\n";
 	    $settings{'KEY1'} = '';       # End edit mode
 	    &General::log($Lang::tr{'hosts config changed'});
 	}
@@ -150,6 +154,11 @@ if ($settings{'ACTION'} eq $Lang::tr{'edit'}) {
     $settings{'IP'}=$temp[1];
     $settings{'HOST'}=$temp[2];
     $settings{'DOM'}=$temp[3];
+    if ($temp[4] eq '') {
+	$settings{'PTR'} = 'on';
+    } else {
+	$settings{'PTR'}=$temp[4];
+    }
 }
 
 if ($settings{'ACTION'} eq $Lang::tr{'remove'}) {
@@ -190,6 +199,7 @@ if ($settings{'ACTION'} eq '' ) { # First launch from GUI
     # Place here default value when nothing is initialized
     $settings{'EN'} = 'on';
     $settings{'DOM'} = $settings{'DOMAINNAME'};
+    $settings{'PTR'} = 'on';
 }
 
 &Header::openpage($Lang::tr{'hostname'}, 1, '');
@@ -238,6 +248,7 @@ if ($errormessage) {
 # Second check box is for editing the list
 #
 $checked{'EN'}{'on'} = ($settings{'EN'} eq '' ) ? '' : "checked='checked'";
+$checked{'PTR'}{'on'} = ($settings{'PTR'} eq 'off' ) ? '' : "checked='checked'";
 
 my $buttontext = $Lang::tr{'add'};
 if ($settings{'KEY1'} ne '') {
@@ -257,9 +268,16 @@ print <<END
     <td><input type='text' name='IP' value='$settings{'IP'}' /></td>
     <td class='base'>$Lang::tr{'hostname'}:&nbsp;<img src='/blob.gif' alt='*' /></td>
     <td><input type='text' name='HOST' value='$settings{'HOST'}' /></td>
-</tr><tr>
+</tr>
+<tr>
     <td class='base'>$Lang::tr{'domain name'}:</td>
     <td><input type='text' name='DOM' value='$settings{'DOM'}' /></td>
+    <td class='base'>$Lang::tr{'generate ptr'}:</td>
+    <td><input type='checkbox' name='PTR' $checked{'PTR'}{'on'} /></td>
+</tr>
+<tr>
+    <td>&nbsp;</td>
+    <td>&nbsp;</td>
     <td class='base'>$Lang::tr{'enabled'}</td>
     <td><input type='checkbox' name='EN' $checked{'EN'}{'on'} /></td>
 </tr>
@@ -288,7 +306,8 @@ print <<END
 <tr>
     <th width='20%' align='center'><a href='$ENV{'SCRIPT_NAME'}?IP'><b>$Lang::tr{'host ip'}</b></a></th>
     <th width='20%' align='center'><a href='$ENV{'SCRIPT_NAME'}?HOST'><b>$Lang::tr{'hostname'}</b></a></th>
-    <th width='50%' align='center'><a href='$ENV{'SCRIPT_NAME'}?DOM'><b>$Lang::tr{'domain name'}</b></a></th>
+    <th width='40%' align='center'><a href='$ENV{'SCRIPT_NAME'}?DOM'><b>$Lang::tr{'domain name'}</b></a></th>
+    <th width='10%' align='center' class='boldbase'><b>$Lang::tr{'ptr'}</b></th>
     <th width='10%' colspan='3' class='boldbase' align='center'><b>$Lang::tr{'action'}</b></th>
 </tr>
 END
@@ -315,6 +334,12 @@ foreach my $line (@current) {
 	$gdesc = $Lang::tr{'click to enable'}; 
     }
 
+   if ($temp[4] eq '' || $temp[4] eq 'on') {
+        $temp[4] = $Lang::tr{'yes'};
+   } else {
+        $temp[4] = $Lang::tr{'no'};
+   }
+
     #Colorize each line
     if ($settings{'KEY1'} eq $key) {
 	print "<tr bgcolor='${Header::colouryellow}'>";
@@ -329,6 +354,7 @@ foreach my $line (@current) {
 <td align='center' $col>$temp[1]</td>
 <td align='center' $col>$temp[2]</td>
 <td align='center' $col>$temp[3]</td>
+<td align='center' $col>$temp[4]</td>
 <td align='center' $col>
 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
 <input type='hidden' name='ACTION' value='$Lang::tr{'toggle enable disable'}' />
@@ -430,14 +456,14 @@ sub SortDataFile
     my $key = 0;
     foreach my $line (@current) {
 	chomp( $line); #remove newline because can be on field 5 or 6 (addition of REMARK)
-	my @temp = ( '','','', '');
+	my @temp = ( '','','','','');
 	@temp = split (',',$line);
 
 	# Build a pair 'Field Name',value for each of the data dataline.
 	# Each SORTABLE field must have is pair.
 	# Other data fields (non sortable) can be grouped in one
 	
-	my @record = ('KEY',$key++,'EN',$temp[0],'IP',$temp[1],'HOST',$temp[2],'DOM',$temp[3]);
+	my @record = ('KEY',$key++,'EN',$temp[0],'IP',$temp[1],'HOST',$temp[2],'DOM',$temp[3],'PTR',$temp[4]);
 	my $record = {};                        	# create a reference to empty hash
 	%{$record} = @record;                		# populate that hash with @record
 	$entries{$record->{KEY}} = $record; 		# add this to a hash of hashes
@@ -447,7 +473,7 @@ sub SortDataFile
 
     # Each field value is printed , with the newline ! Don't forget separator and order of them.
     foreach my $entry (sort fixedleasesort keys %entries) {
-	print FILE "$entries{$entry}->{EN},$entries{$entry}->{IP},$entries{$entry}->{HOST},$entries{$entry}->{DOM}\n";
+	print FILE "$entries{$entry}->{EN},$entries{$entry}->{IP},$entries{$entry}->{HOST},$entries{$entry}->{DOM},$entries{$entry}->{PTR}\n";
     }
 
     close(FILE);
diff --git a/langs/de/cgi-bin/de.pl b/langs/de/cgi-bin/de.pl
index 88b34d23b..b2e95b63a 100644
--- a/langs/de/cgi-bin/de.pl
+++ b/langs/de/cgi-bin/de.pl
@@ -1262,6 +1262,7 @@
 'generate dh key' => 'Diffie-Hellman Key generieren',
 'generate iso' => 'ISO erstellen',
 'generate root/host certificates' => 'Erzeuge Root/Host-Zertifikate',
+'generate ptr' => 'PTR erzeugen',
 'generate tripwire keys and init' => 'Tripwire Initalisierung',
 'generatekeys' => 'Neue Schlüssel erzeugen',
 'generatepolicy' => 'Neue Policy erstellen',
@@ -1998,6 +1999,7 @@
 'proxy reports today' => 'Heute',
 'proxy reports weekly' => 'Wöchentliche Berichte',
 'psk' => 'PSK',
+'ptr' => 'PTR',
 'pulse' => 'Puls',
 'pulse dial' => 'Pulswahl:',
 'qos add subclass' => 'Unterklasse hinzufügen',
diff --git a/langs/en/cgi-bin/en.pl b/langs/en/cgi-bin/en.pl
index af0d514af..cbe1ed75e 100644
--- a/langs/en/cgi-bin/en.pl
+++ b/langs/en/cgi-bin/en.pl
@@ -1294,6 +1294,7 @@
 'generate dh key' => 'Generate Diffie-Hellman parameters',
 'generate iso' => 'Generate ISO',
 'generate root/host certificates' => 'Generate root/host certificates',
+'generate ptr' => 'Generate PTR',
 'generate tripwire keys and init' => 'generate tripwire keys and init',
 'generatekeys' => 'Generate Keys',
 'generatepolicy' => 'Generate new policy',
@@ -2036,6 +2037,7 @@
 'proxy reports today' => 'Today',
 'proxy reports weekly' => 'Weekly reports',
 'psk' => 'PSK',
+'ptr' => 'PTR',
 'pulse' => 'Pulse',
 'pulse dial' => 'Pulse dial:',
 'qos add subclass' => 'Add subclass',
-- 
2.16.4