whitespace firewall_aliases.php

src/www/firewall_aliases.php

 <?php
 
 /*
-	Copyright (C) 2014 Deciso B.V.
-	Copyright (C) 2004 Scott Ullrich
-	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
-	All rights reserved.
+  Copyright (C) 2014 Deciso B.V.
+  Copyright (C) 2004 Scott Ullrich
+  Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
+  All rights reserved.
 
-	Redistribution and use in source and binary forms, with or without
-	modification, are permitted provided that the following conditions are met:
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
 
-	1. Redistributions of source code must retain the above copyright notice,
-	   this list of conditions and the following disclaimer.
+  1. Redistributions of source code must retain the above copyright notice,
+     this list of conditions and the following disclaimer.
 
-	2. Redistributions in binary form must reproduce the above copyright
-	   notice, this list of conditions and the following disclaimer in the
-	   documentation and/or other materials provided with the distribution.
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
 
-	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
-	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
-	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
-	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-	POSSIBILITY OF SUCH DAMAGE.
+  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+  AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+  AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+  OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+  POSSIBILITY OF SUCH DAMAGE.
 */
 
 require_once("guiconfig.inc");
 require_once("filter.inc");
 
 function find_alias_reference($section, $field, $origname, &$is_alias_referenced, &$referenced_by) {
-		global $config;
-		if(!$origname || $is_alias_referenced)
-				return;
+    global $config;
+    if(!$origname || $is_alias_referenced)
+        return;
 
-		$sectionref = &$config;
-		foreach($section as $sectionname) {
-				if(is_array($sectionref) && isset($sectionref[$sectionname]))
-					$sectionref = &$sectionref[$sectionname];
-				else
-					return;
-		}
+    $sectionref = &$config;
+    foreach($section as $sectionname) {
+        if(is_array($sectionref) && isset($sectionref[$sectionname]))
+          $sectionref = &$sectionref[$sectionname];
+        else
+          return;
+    }
 
-		if(is_array($sectionref)) {
-			foreach($sectionref as $itemkey => $item) {
-				$fieldfound = true;
-				$fieldref = &$sectionref[$itemkey];
-				foreach($field as $fieldname) {
-						if(is_array($fieldref) && isset($fieldref[$fieldname]))
-								$fieldref = &$fieldref[$fieldname];
-						else {
-								$fieldfound = false;
-								break;
-						}
-				}
-				if($fieldfound && $fieldref == $origname) {
-						$is_alias_referenced = true;
-						if(is_array($item))
-								$referenced_by = $item['descr'];
-						break;
-				}
-			}
-		}
+    if(is_array($sectionref)) {
+      foreach($sectionref as $itemkey => $item) {
+        $fieldfound = true;
+        $fieldref = &$sectionref[$itemkey];
+        foreach($field as $fieldname) {
+            if(is_array($fieldref) && isset($fieldref[$fieldname]))
+                $fieldref = &$fieldref[$fieldname];
+            else {
+                $fieldfound = false;
+                break;
+            }
+        }
+        if($fieldfound && $fieldref == $origname) {
+            $is_alias_referenced = true;
+            if(is_array($item))
+                $referenced_by = $item['descr'];
+            break;
+        }
+      }
+    }
 }
 
 
 if (!isset($config['aliases'])) {
-		$config['aliases'] = array();
+    $config['aliases'] = array();
 }
 if (!isset($config['aliases']['alias'])) {
-		$config['aliases']['alias'] = array();
+    $config['aliases']['alias'] = array();
 }
 $a_aliases = &$config['aliases']['alias'];
 
@@ -79,68 +79,68 @@ $a_aliases = &$config['aliases']['alias'];
 $selected_tab = htmlspecialchars(($_REQUEST['tab'] == "" ? "ip" : preg_replace("/\W/","",$_REQUEST['tab'])));
 
 if ($_SERVER['REQUEST_METHOD'] === 'POST') {
-		if (isset($_POST['apply'])) {
-				/* reload all components that use aliases */
-				filter_configure();
-				$savemsg = get_std_save_message();
-				clear_subsystem_dirty('aliases');
-		} elseif (isset($_POST['act']) && $_POST['act'] == "del") {
-				if (isset($_POST['id']) && isset($a_aliases[$_POST['id']])) {
-						// perform validation
-						/* make sure rule is not being referenced by any nat or filter rules */
-						$is_alias_referenced = false;
-						$referenced_by = false;
-						$alias_name = $a_aliases[$_POST['id']]['name'];
-						// Firewall rules
-						find_alias_reference(array('filter', 'rule'), array('source', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('filter', 'rule'), array('destination', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('filter', 'rule'), array('source', 'port'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('filter', 'rule'), array('destination', 'port'), $alias_name, $is_alias_referenced, $referenced_by);
-						// NAT Rules
-						find_alias_reference(array('nat', 'rule'), array('source', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('nat', 'rule'), array('source', 'port'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('nat', 'rule'), array('destination', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('nat', 'rule'), array('destination', 'port'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('nat', 'rule'), array('target'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('nat', 'rule'), array('local-port'), $alias_name, $is_alias_referenced, $referenced_by);
-						// NAT 1:1 Rules
-						//find_alias_reference(array('nat', 'onetoone'), array('external'), $alias_name, $is_alias_referenced, $referenced_by);
-						//find_alias_reference(array('nat', 'onetoone'), array('source', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('nat', 'onetoone'), array('destination', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
-						// NAT Outbound Rules
-						find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('source', 'network'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('sourceport'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('destination', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('dstport'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('target'), $alias_name, $is_alias_referenced, $referenced_by);
-						// Alias in an alias
-						find_alias_reference(array('aliases', 'alias'), array('address'), $alias_name, $is_alias_referenced, $referenced_by);
-						// Load Balancer
-						find_alias_reference(array('load_balancer', 'lbpool'),         array('port'), $alias_name, $is_alias_referenced, $referenced_by);
-						find_alias_reference(array('load_balancer', 'virtual_server'), array('port'), $alias_name, $is_alias_referenced, $referenced_by);
-						// Static routes
-						find_alias_reference(array('staticroutes', 'route'), array('network'), $alias_name, $is_alias_referenced, $referenced_by);
-						if($is_alias_referenced) {
-							$savemsg = sprintf(gettext("Cannot delete alias. Currently in use by %s"), $referenced_by);
-						} else {
-							unset($a_aliases[$_POST['id']]);
-							if (write_config()) {
-								filter_configure();
-								mark_subsystem_dirty('aliases');
-							}
-								header("Location: firewall_aliases.php?tab=" . $selected_tab);
-							exit;
-						}
-				}
-		}
+    if (isset($_POST['apply'])) {
+        /* reload all components that use aliases */
+        filter_configure();
+        $savemsg = get_std_save_message();
+        clear_subsystem_dirty('aliases');
+    } elseif (isset($_POST['act']) && $_POST['act'] == "del") {
+        if (isset($_POST['id']) && isset($a_aliases[$_POST['id']])) {
+            // perform validation
+            /* make sure rule is not being referenced by any nat or filter rules */
+            $is_alias_referenced = false;
+            $referenced_by = false;
+            $alias_name = $a_aliases[$_POST['id']]['name'];
+            // Firewall rules
+            find_alias_reference(array('filter', 'rule'), array('source', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('filter', 'rule'), array('destination', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('filter', 'rule'), array('source', 'port'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('filter', 'rule'), array('destination', 'port'), $alias_name, $is_alias_referenced, $referenced_by);
+            // NAT Rules
+            find_alias_reference(array('nat', 'rule'), array('source', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('nat', 'rule'), array('source', 'port'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('nat', 'rule'), array('destination', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('nat', 'rule'), array('destination', 'port'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('nat', 'rule'), array('target'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('nat', 'rule'), array('local-port'), $alias_name, $is_alias_referenced, $referenced_by);
+            // NAT 1:1 Rules
+            //find_alias_reference(array('nat', 'onetoone'), array('external'), $alias_name, $is_alias_referenced, $referenced_by);
+            //find_alias_reference(array('nat', 'onetoone'), array('source', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('nat', 'onetoone'), array('destination', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
+            // NAT Outbound Rules
+            find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('source', 'network'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('sourceport'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('destination', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('dstport'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('target'), $alias_name, $is_alias_referenced, $referenced_by);
+            // Alias in an alias
+            find_alias_reference(array('aliases', 'alias'), array('address'), $alias_name, $is_alias_referenced, $referenced_by);
+            // Load Balancer
+            find_alias_reference(array('load_balancer', 'lbpool'),         array('port'), $alias_name, $is_alias_referenced, $referenced_by);
+            find_alias_reference(array('load_balancer', 'virtual_server'), array('port'), $alias_name, $is_alias_referenced, $referenced_by);
+            // Static routes
+            find_alias_reference(array('staticroutes', 'route'), array('network'), $alias_name, $is_alias_referenced, $referenced_by);
+            if($is_alias_referenced) {
+              $savemsg = sprintf(gettext("Cannot delete alias. Currently in use by %s"), $referenced_by);
+            } else {
+              unset($a_aliases[$_POST['id']]);
+              if (write_config()) {
+                filter_configure();
+                mark_subsystem_dirty('aliases');
+              }
+                header("Location: firewall_aliases.php?tab=" . $selected_tab);
+              exit;
+            }
+        }
+    }
 }
 
 
 $pgtitle = array(gettext("Firewall"), gettext("Aliases"));
 $shortcut_section = "aliases";
 $main_buttons = array(
-	array('href'=>'firewall_aliases_edit.php?tab='.$selected_tab, 'label'=>gettext("Add a new alias")),
-	array('href'=>'firewall_aliases_import.php', 'label'=>gettext("Bulk import aliases from list")),
+  array('href'=>'firewall_aliases_edit.php?tab='.$selected_tab, 'label'=>gettext("Add a new alias")),
+  array('href'=>'firewall_aliases_import.php', 'label'=>gettext("Bulk import aliases from list")),
 );
 
 
@@ -149,130 +149,130 @@ include("head.inc");
 <body>
 <script type="text/javascript">
 $( document ).ready(function() {
-	// link delete buttons
-	$(".act_delete").click(function(){
-		var id = $(this).attr("id").split('_').pop(-1);
-		BootstrapDialog.show({
-				type:BootstrapDialog.TYPE_INFO,
-				title: "<?= gettext("Aliasses");?>",
-				message: "<?=gettext("Do you really want to delete this alias? All elements that still use it will become invalid (e.g. filter rules)!");?>",
-				buttons: [{
-								label: "<?= gettext("No");?>",
-								action: function(dialogRef) {
-									dialogRef.close();
-								}}, {
-									label: "<?= gettext("Yes");?>",
-									action: function(dialogRef) {
-										$("#delId").val(id);
-										$("#iform").submit()
-								}
-				}]
-		});
-	});
+  // link delete buttons
+  $(".act_delete").click(function(){
+    var id = $(this).attr("id").split('_').pop(-1);
+    BootstrapDialog.show({
+        type:BootstrapDialog.TYPE_INFO,
+        title: "<?= gettext("Aliasses");?>",
+        message: "<?=gettext("Do you really want to delete this alias? All elements that still use it will become invalid (e.g. filter rules)!");?>",
+        buttons: [{
+                label: "<?= gettext("No");?>",
+                action: function(dialogRef) {
+                  dialogRef.close();
+                }}, {
+                  label: "<?= gettext("Yes");?>",
+                  action: function(dialogRef) {
+                    $("#delId").val(id);
+                    $("#iform").submit()
+                }
+        }]
+    });
+  });
 });
 </script>
 <?php include("fbegin.inc"); ?>
-	<section class="page-content-main">
-		<div class="container-fluid">
-			<div class="row">
+  <section class="page-content-main">
+    <div class="container-fluid">
+      <div class="row">
 <?php if (isset($savemsg)) print_info_box($savemsg); ?>
 <?php if (is_subsystem_dirty('aliases')): ?>
 <?php print_info_box_np(gettext("The alias list has been changed.") . "<br />" . gettext("You must apply the changes in order for them to take effect."));?>
 <?php endif; ?>
-			  <section class="col-xs-12">
+        <section class="col-xs-12">
 <?php
-							$tab_array = array();
-							$tab_array[] = array(gettext("IP"),($selected_tab=="ip" ? true : ($selected_tab=="host" ? true : ($selected_tab == "network" ? true : false))), "/firewall_aliases.php?tab=ip");
-							$tab_array[] = array(gettext("Ports"), ($selected_tab=="port"? true : false), "/firewall_aliases.php?tab=port");
-							$tab_array[] = array(gettext("URLs"), ($selected_tab=="url"? true : false), "/firewall_aliases.php?tab=url");
-							$tab_array[] = array(gettext("All"), ($selected_tab=="all"? true : false), "/firewall_aliases.php?tab=all");
-							display_top_tabs($tab_array);
+              $tab_array = array();
+              $tab_array[] = array(gettext("IP"),($selected_tab=="ip" ? true : ($selected_tab=="host" ? true : ($selected_tab == "network" ? true : false))), "/firewall_aliases.php?tab=ip");
+              $tab_array[] = array(gettext("Ports"), ($selected_tab=="port"? true : false), "/firewall_aliases.php?tab=port");
+              $tab_array[] = array(gettext("URLs"), ($selected_tab=="url"? true : false), "/firewall_aliases.php?tab=url");
+              $tab_array[] = array(gettext("All"), ($selected_tab=="all"? true : false), "/firewall_aliases.php?tab=all");
+              display_top_tabs($tab_array);
 ?>
-					<div class="tab-content content-box col-xs-12">
-						<form action="firewall_aliases.php" method="post" name="iform" id="iform">
-							<input type="hidden" name="tab" value="<?=$selected_tab;?>" />
-							<input type="hidden" name="id" value="" id="delId"/>
-							<input type="hidden" name="act" value="del"/>
-								<div class="table-responsive">
-									<table class="table table-striped">
-										<tr>
-											<td><?=gettext("Name"); ?></td>
-											<td><?=gettext("Values"); ?></td>
-											<td><?=gettext("Description"); ?></td>
-											<td>&nbsp;</td>
-										</tr>
+          <div class="tab-content content-box col-xs-12">
+            <form action="firewall_aliases.php" method="post" name="iform" id="iform">
+              <input type="hidden" name="tab" value="<?=$selected_tab;?>" />
+              <input type="hidden" name="id" value="" id="delId"/>
+              <input type="hidden" name="act" value="del"/>
+                <div class="table-responsive">
+                  <table class="table table-striped">
+                    <tr>
+                      <td><?=gettext("Name"); ?></td>
+                      <td><?=gettext("Values"); ?></td>
+                      <td><?=gettext("Description"); ?></td>
+                      <td>&nbsp;</td>
+                    </tr>
 <?php
-										asort($a_aliases);
-										foreach ($a_aliases as $i=> $alias){
-											$show_alias = false;
-											switch ($selected_tab){
-											case "all":
-												$show_alias= true;
-												break;
-											case "ip":
-											case "host":
-											case "network":
-												if (preg_match("/(host|network)/",$alias["type"]))
-													$show_alias= true;
-												break;
-											case "url":
-												if (preg_match("/(url)/i",$alias["type"]))
-													$show_alias= true;
-												break;
-											case "port":
-												if($alias["type"] == "port")
-													$show_alias= true;
-												break;
-											}
-											if ($show_alias ){
-										?>
-										<tr>
-											<td ondblclick="document.location='firewall_aliases_edit.php?id=<?=$i;?>';">
-												<?=htmlspecialchars($alias['name']);?>
-											</td>
+                    asort($a_aliases);
+                    foreach ($a_aliases as $i=> $alias){
+                      $show_alias = false;
+                      switch ($selected_tab){
+                      case "all":
+                        $show_alias= true;
+                        break;
+                      case "ip":
+                      case "host":
+                      case "network":
+                        if (preg_match("/(host|network)/",$alias["type"]))
+                          $show_alias= true;
+                        break;
+                      case "url":
+                        if (preg_match("/(url)/i",$alias["type"]))
+                          $show_alias= true;
+                        break;
+                      case "port":
+                        if($alias["type"] == "port")
+                          $show_alias= true;
+                        break;
+                      }
+                      if ($show_alias ){
+                    ?>
+                    <tr>
+                      <td ondblclick="document.location='firewall_aliases_edit.php?id=<?=$i;?>';">
+                        <?=htmlspecialchars($alias['name']);?>
+                      </td>
 <?php
                         $alias_values = '';
-											  if (!empty($alias["url"])) {
-												    $alias_values = $alias["url"];
-											  } elseif(isset($alias["aliasurl"])) {
+                        if (!empty($alias["url"])) {
+                            $alias_values = $alias["url"];
+                        } elseif(isset($alias["aliasurl"])) {
                             $alias_values = implode(", ", array_slice($alias['aliasurl'], 0, 5));
-													  if(count($alias['aliasurl']) > 5) {
-														    $alias_values .= "...";
-													  }
-											  } else {
-												    $alias_values = implode(", ", array_slice(explode(" ", $alias['address']), 0, 5));
-												    if(count(explode(" ", $alias['address'])) > 5) {
-													      $alias_values .= "...";
-												    }
-											}
+                            if(count($alias['aliasurl']) > 5) {
+                                $alias_values .= "...";
+                            }
+                        } else {
+                            $alias_values = implode(", ", array_slice(explode(" ", $alias['address']), 0, 5));
+                            if(count(explode(" ", $alias['address'])) > 5) {
+                                $alias_values .= "...";
+                            }
+                      }
 ?>
-											<td ondblclick="document.location='firewall_aliases_edit.php?id=<?=$i;?>';">
-												<?= htmlspecialchars($alias_values); ?>
-											</td>
-											<td ondblclick="document.location='firewall_aliases_edit.php?id=<?=$i;?>';">
-												<?=htmlspecialchars($alias['descr']);?>
-											</td>
-											<td>
-												<a href="firewall_aliases_edit.php?id=<?=$i;?>" title="<?=gettext("Edit alias"); ?>" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-pencil"></span></a>
-												<a id="del_<?=$i;?>" title="<?=gettext("delete alias"); ?>" class="act_delete btn btn-default btn-xs"><span class="glyphicon glyphicon-remove"></span></a>
-											</td>
-										</tr>
+                      <td ondblclick="document.location='firewall_aliases_edit.php?id=<?=$i;?>';">
+                        <?= htmlspecialchars($alias_values); ?>
+                      </td>
+                      <td ondblclick="document.location='firewall_aliases_edit.php?id=<?=$i;?>';">
+                        <?=htmlspecialchars($alias['descr']);?>
+                      </td>
+                      <td>
+                        <a href="firewall_aliases_edit.php?id=<?=$i;?>" title="<?=gettext("Edit alias"); ?>" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-pencil"></span></a>
+                        <a id="del_<?=$i;?>" title="<?=gettext("delete alias"); ?>" class="act_delete btn btn-default btn-xs"><span class="glyphicon glyphicon-remove"></span></a>
+                      </td>
+                    </tr>
 <?php
-											} // if ($show_alias)
-										} // foreach
+                      } // if ($show_alias)
+                    } // foreach
 ?>
-								</table>
-								<div class="container-fluid">
-									<span class="text-danger">
-										<strong><?=gettext("Note:"); ?><br />
-										</strong></span>
-									</span>
-									<?=gettext("Aliases act as placeholders for real hosts, networks or ports. They can be used to minimize the number of changes that have to be made if a host, network or port changes. You can enter the name of an alias instead of the host, network or port in all fields that have a red background. The alias will be resolved according to the list above. If an alias cannot be resolved (e.g. because you deleted it), the corresponding element (e.g. filter/NAT/shaper rule) will be considered invalid and skipped."); ?>
-								</div>
-						</form>
-					</div>
-				</section>
-			</div>
-		</div>
-	</section>
+                </table>
+                <div class="container-fluid">
+                  <span class="text-danger">
+                    <strong><?=gettext("Note:"); ?><br />
+                    </strong></span>
+                  </span>
+                  <?=gettext("Aliases act as placeholders for real hosts, networks or ports. They can be used to minimize the number of changes that have to be made if a host, network or port changes. You can enter the name of an alias instead of the host, network or port in all fields that have a red background. The alias will be resolved according to the list above. If an alias cannot be resolved (e.g. because you deleted it), the corresponding element (e.g. filter/NAT/shaper rule) will be considered invalid and skipped."); ?>
+                </div>
+            </form>
+          </div>
+        </section>
+      </div>
+    </div>
+  </section>
 <?php include("foot.inc"); ?>