<?php
# Copyright(C) 2004-2007 INL http://www.inl.fr/
# Written by Eric Leblond <regit@inl.fr>
#            Vincent Deffontaines <gryzor@inl.fr>
#	     Jean Gillaux <jean@inl.fr>
#
# $Id: edit_nat.php 17927 2009-02-16 13:16:09Z haypo $
#
# 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, version 3 of the License.
#
#  This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <http://www.gnu.org/licenses/>.

function editNat($expolicy, $nat_type, $ch_nat)
{
    global $title;
    global $netfilter_snat_supports_sport_randomization;

  $nat = $ch_nat;
  print "<div class=\"acledit_tab\">";
  if ($nat_type == 'SNAT')
  {
    $nats = $expolicy->snats;
  }
  else if ($nat_type == 'DNAT')
  {
    $nats = $expolicy->dnats;
  }
  else if ($nat_type == 'PNAT')
  {
    $nats = $expolicy->pnats;
  }
  else
  {
    add_log(sprintf(_('Invalid NAT type: "%s"!'), $nat_type));
    return;
  }
  $my_nat = $nats->get_elt($nat);

  // Form title
  print "<h3>";
  echo sprintf(_("Edit %s (%s)"), $my_nat->str(), $my_nat->modified);
  $msg = sprintf(_('Are you sure that you want to delete %s?'), $my_nat->str());
  deleteIcon("$title.php?delete_s=".$my_nat->ID.'&nat_type='.$my_nat->nat_type, _("Delete the NAT rule"), $msg);
  echo "</h3>\n";

  $srcnet=$my_nat->srcnet;
  $dstnet=$my_nat->dstnet;
  $proto=$my_nat->proto;
  $sport=$my_nat->sport;
  if ($nat_type == 'SNAT')
    $rand_sport=$my_nat->rand_sport;
  $dport=$my_nat->dport;
  $icmptype=$my_nat->icmptype;
  $rewritetoaddr=$my_nat->rewritetoaddr;
  $rewritetoport=$my_nat->rewritetoport;

  $rewritetovar = $rewritetoaddr;
  if ($nat_type == 'PNAT')
    $rewritetovar = $rewritetoport;
  if ($nat_type == 'DNAT')
    $rewritetovar = $rewritetoaddr.":".$rewritetoport;

  print '<form method="post" action="nat.php" onsubmit="natHandle()" id="natproto">'.
	'<input type="hidden" name="nat_nb" value="'.$my_nat->ID.'">'.
	'<input type="hidden" name="nat_type" value="'.$nat_type.'">';
  echo '<input type="hidden" name="dndSort" value="" />';
  print '<input type="hidden" name="nat" value="'.$nat.'">';

  print '<table class="acl_edit">';
  print '<tr><td class="rowtitle">'._('Name').'</td>'.
        '<td colspan="2"><input type="text" name="ch_name" value="'.$my_nat->name.'"></td></tr>' ."\n";

  print '<tr><td class="rowtitle">'._('Comment').'</td><td colspan="2">';
  html_textarea("comment", $my_nat->comment, 30, 3);
  print "</td></tr>";

  formSeparator(_('Network parameters'), 3);

  print '<tr><td class="rowtitle">'._('Source address').'</td>'
        .'<td colspan="2"><input type="text" name="srcnet" value="'.$srcnet.'"></td></tr>'."\n";

  print "<tr><td class=\"rowtitle\">"._('Destination address')."</td>"
        .'<td colspan="2"><input type="text" name="dstnet" value="'.$dstnet.'"></td></tr>';

  $js = "griser_natproto();";
  print "<tr><td class=\"rowtitle\">"._('Protocol')."</td><td colspan=\"2\">";
  html_javascript($js, true);
  print "<select name=proto onFocus=\"$js\" onChange=\"griser_natproto();\">";
  $array_protos=possible_values('elt','open_proto');
  natcasesort($array_protos);
  foreach ($array_protos as $_proto)
  {
    print "<option value=\"$_proto\"";
    if ($_proto == $proto)
      echo " selected";
    print ">".$_proto."</option>";
  }
  print " </select></td></tr>\n";

  print '<tr><td class="rowtitle">Sport</td><td colspan="2"><input type="text" name="sport" value="'. $sport. '"></td></tr>' ."\n";
  print '<tr><td class="rowtitle">Dport</td><td colspan="2"><input type="text" name="dport" value="'. $dport. '"></td></tr>' ."\n";
  if ($nat_type == 'SNAT')
  {
    if ($netfilter_snat_supports_sport_randomization)
    {
      print '<tr><td class="rowtitle">Sport_rand</td><td>';
      html_checkbox('rand_sport', $rand_sport == 1);
      echo "</td></tr>\n";
    }
  }

  print "<tr><td class=\"rowtitle\">"._('ICMP type').'</td><td colspan="2"> <select name=icmptype>';
  $array_icmptypes=possible_values('proto','icmptype');
  natcasesort($array_icmptypes);
  foreach ($array_icmptypes as $_icmptype)
  {
      print "\n\t<option value=\"$_icmptype\"";
      if ($icmptype == $_icmptype)
        echo " selected";
      print ">".$_icmptype."</option>";
  }
  print "</select></td></tr>\n";
  $our_param = "nat_addr";
  $rewritetovar=$rewritetoaddr;
  if ($nat_type == 'SNAT')
  {
    $text = _('Rewrite source to');
  }
  else if ($nat_type == 'DNAT')
  {
    $text = _('Rewrite destination to');
  }
  else if ($nat_type == 'PNAT')
  {
    $text = _('Rewrite port to');
    $our_param="nat_port";
    $rewritetovar=$rewritetoport;
  }

  print '<tr><td class="rowtitle">'.$text.'</td>';
  if ($nat_type != 'DNAT') {
      echo '<td colspan="2">';
  } else {
      echo '<td>';
  }
  echo '<input type="text" name="'.$our_param.'" value="'.$rewritetovar.'"></td>';
  if ($nat_type == 'DNAT')
  {
    print "<td>"._("port:")." <input name=\"nat_port\" value=\"$rewritetoport\" size=4></td>";
  }
  print '</tr>';

  print "</table>";

  print "<input type=\"submit\"  value=\""._('Save')."\" class=\"button\" onMouseOver=\"griser_natproto();\" />";
  echo '<input type="hidden" name="dndSort" value="" />';
  print "</form>\n";
  print "</div>";
}

?>