From 6074075ce90404997f21f5019c743ce599a1c3fc Mon Sep 17 00:00:00 2001
From: PiBa-NL <pba_2k3@yahoo.com>
Date: Thu, 14 Mar 2013 23:18:41 +0100
Subject: haproxy-devel, made frontend merging in such a way that it is more
 obvious that a lot of settings are not needed for 'secondary' frontends.

---
 config/haproxy-devel/haproxy.inc                | 138 +++++++++++++++++--
 config/haproxy-devel/haproxy_listeners.php      | 168 ++++++++++++++----------
 config/haproxy-devel/haproxy_listeners_edit.php |  91 +++++++++----
 config/haproxy-devel/haproxy_pool_edit.php      |   2 +-
 4 files changed, 287 insertions(+), 112 deletions(-)

diff --git a/config/haproxy-devel/haproxy.inc b/config/haproxy-devel/haproxy.inc
index e246b8e0..a03bf219 100644
--- a/config/haproxy-devel/haproxy.inc
+++ b/config/haproxy-devel/haproxy.inc
@@ -348,9 +348,12 @@ function write_backend($fd, $name, $pool, $frontend) {
 		$httpchk = "ssl-hello-chk";
 	} else {
 		$backend_type = $frontend['type'];
-		$httpchk = "httpchk";
+		if(strtolower($frontend['type']) == "http")
+			$httpchk = "httpchk";
+		else
+			unset($httpchk);
 	}
-
+			
 	fwrite ($fd, "\tmode\t\t\t" . $backend_type . "\n");
 
 	if($pool['balance'])
@@ -392,7 +395,7 @@ function write_backend($fd, $name, $pool, $frontend) {
 	else
 		$uri = "/";
 		
-	if (!$sslserverpresent)
+	if ($httpchk)
 		fwrite ($fd, "\toption\t\t\t{$httpchk} HEAD " . $uri . " HTTP/1.0\n");
 
 	if ($pool['advanced_backend']) {
@@ -451,7 +454,7 @@ function haproxy_configure() {
 function haproxy_check_writtenconfig_error() {
 	$configcheckoutput = shell_exec("haproxy -c -V -f /var/etc/haproxy.cfg 2>&1");
 	if (!strstr($configcheckoutput, "Configuration file is valid"))
-		return $configcheckoutput;
+		return str_replace("\n","<br/>\n", $configcheckoutput);
 	else
 		return false;
 }
@@ -528,12 +531,16 @@ function haproxy_writeconf() {
 			$b = &$a_bind[$bname];
 			
 			// Overwrite ?
-			$b['type'] = $backend['type'];
-			$b['forwardfor'] = $backend['forwardfor'];
-			$b['httpclose'] = $backend['httpclose'];
-			$b['max_connections'] = $backend['max_connections'];
-			$b['client_timeout'] = $backend['client_timeout'];
-			$b['advanced'] = $backend['advanced'];
+			if ($backend['secondary'] != 'yes') {
+				if (isset($b['type']))
+					$input_errors[] = "Multiple primary frondends for $bname";
+				$b['type'] = $backend['type'];
+				$b['forwardfor'] = $backend['forwardfor'];
+				$b['httpclose'] = $backend['httpclose'];
+				$b['max_connections'] = $backend['max_connections'];
+				$b['client_timeout'] = $backend['client_timeout'];
+				$b['advanced'] = $backend['advanced'];
+			}
 			
 			if ($ssl_crt != "") {
 				if ($b['ssl_info'] == "")
@@ -585,14 +592,12 @@ function haproxy_writeconf() {
 				$advanced = base64_decode($bind['advanced']);
 				fwrite($fd, "\t" . $advanced . "\n");
 			}
-			
+
 			// https is an alias for tcp for clarity purpouses
 			if(strtolower($bind['type']) == "https") {
 				$backend_type = "tcp";
-				$httpchk = "ssl-hello-chk";
-			} else { 
+			} else {
 				$backend_type = $bind['type'];
-				$httpchk = "httpchk";
 			}
 
 			fwrite ($fd, "\tmode\t\t\t" . $backend_type . "\n");
@@ -711,6 +716,9 @@ function haproxy_writeconf() {
 	// create config file
 	fclose($fd);
 
+	if ($input_errors)
+		print_input_errors($input_errors);
+	
 	if (isset($a_global['carpdev']))
 		haproxy_install_cron(true);
 	else
@@ -881,4 +889,106 @@ function haproxy_do_xmlrpc_sync($sync_to_ip, $password) {
 	}
 }
 
+function get_frontend_id($name) {
+	global $a_backend;
+	$i = 0;
+	foreach($a_backend as $backend)
+	{
+		if ($backend['name'] == $name)
+			return $i;
+		$i++;
+	}
+	return null;
+}
+
+function get_frontend_ipport($fontend) {
+	global $a_backend;
+	if ($fontend['secondary'] == 'yes')
+		$mainfontend = $a_backend[get_frontend_id($fontend['primary_frontend'])];
+	else
+		$mainfontend = $fontend;
+	if($mainfontend['extaddr'] == "any") 
+		$result = "0.0.0.0";
+	elseif($mainfontend['extaddr']) 
+		$result = $mainfontend['extaddr'];
+	else 
+		$result = get_current_wan_address('wan');
+	return $result . ":" . $mainfontend['port'];
+	return 'abc';
+}
+
+function haproxy_check_config() {
+	global $config;
+	$a_backends = &$config['installedpackages']['haproxy']['ha_backends']['item'];
+	$result = false;
+	$activefrontends = array();
+	$issues = array();
+	
+	foreach($a_backends as $frontend) {
+		if (($frontend['status'] != 'active') || ($frontend['secondary'] == 'yes'))
+			continue;
+		$ipport = get_frontend_ipport($frontend);
+		if (isset($activefrontends[$ipport]))
+			$issues['P_'.$ipport] = "Multiple primary frontends with IP:Port \"$ipport\"";
+		else
+			$activefrontends[$ipport] = true;
+	}
+	foreach($a_backends as $frontend) {
+		if (($frontend['status'] != 'active') || ($frontend['secondary'] != 'yes'))
+			continue;
+		$ipport = get_frontend_ipport($frontend);
+		if (!isset($activefrontends[$ipport]))
+			$issues['S_'.$frontend['name']] = "Secondary frontend \"{$frontend['name']}\" without active primary frontend.";
+	}
+	foreach ($issues as $item)
+		$result .= ($result == false ? "" : "<br/>") . $item;	
+	return $result;
+}
+
+function get_haproxy_frontends($excludeitem="") {
+	global $config;
+	$a_frontend = &$config['installedpackages']['haproxy']['ha_backends']['item'];
+	$result = array();
+	foreach($a_frontend as &$frontend)
+	{
+		if ($frontend['secondary'])
+			continue;
+		if ($frontend['name'] == $excludeitem)
+			continue;
+		
+		$serveradress = "{$frontend['extaddr']}:{$frontend['port']}";
+		$result[$frontend['name']]['name'] = "{$frontend['name']} - {$frontend['type']} ({$serveradress})";
+		$result[$frontend['name']]['ref'] = &$frontend;
+	}
+	asort($result, SORT_STRING);
+	return $result;
+}
+
+function phparray_to_javascriptarray_recursive($nestID, $path, $items, $nodeName, $includeitems) {
+	$offset = str_repeat('  ',$nestID);
+	$itemName = "item$nestID";
+	echo "{$offset}$nodeName = {};\n";
+	if (is_array($items))
+		foreach ($items as $key => $item)
+		{
+			if (in_array($path.'/'.$key, $includeitems))
+				$subpath = $path.'/'.$key;
+			else
+				$subpath = $path.'/*';
+			if (in_array($subpath, $includeitems) || in_array($path.'/*', $includeitems)) {
+				if (is_array($item)) {
+					$subNodeName = "item$nestID";
+					phparray_to_javascriptarray_recursive($nestID+1, $subpath, $items[$key], $subNodeName, $includeitems);
+					echo "{$offset}{$nodeName}['{$key}'] = $itemName;\n";
+				} else
+					echo "{$offset}{$nodeName}['$key'] = '$item';\n";
+			}
+		}
+}
+
+function phparray_to_javascriptarray($items, $javaMapName, $includeitems)
+{
+		phparray_to_javascriptarray_recursive(1,'',$items, $javaMapName, $includeitems);
+}
+
 ?>
diff --git a/config/haproxy-devel/haproxy_listeners.php b/config/haproxy-devel/haproxy_listeners.php
index 88cdb62f..7b4cf3da 100644
--- a/config/haproxy-devel/haproxy_listeners.php
+++ b/config/haproxy-devel/haproxy_listeners.php
@@ -34,6 +34,7 @@ require_once("guiconfig.inc");
 $d_haproxyconfdirty_path = $g['varrun_path'] . "/haproxy.conf.dirty";
 
 require_once("haproxy.inc");
+require_once("certs.inc");
 
 if (!is_array($config['installedpackages']['haproxy']['ha_backends']['item'])) {
 	$config['installedpackages']['haproxy']['ha_backends']['item'] = array();
@@ -57,12 +58,19 @@ if ($_POST) {
 			unlink_if_exists($d_haproxyconfdirty_path);
 		}
 	}
+} else {
+	$result = haproxy_check_config($retval);
+	if ($result)
+		$savemsg = gettext($result);
 }
 
+$id = $_GET['id'];
+$id = get_frontend_id($id);
+	
 if ($_GET['act'] == "del") {
-	if (isset($a_backend[$_GET['id']])) {
+	if (isset($a_backend[$id])) {
 		if (!$input_errors) {
-			unset($a_backend[$_GET['id']]);
+			unset($a_backend[$id]);
 			write_config();
 			touch($d_haproxyconfdirty_path);
 		}
@@ -104,77 +112,101 @@ include("head.inc");
   <tr>
     <td>
 	<div id="mainarea">
-              <table class="tabcont sortable" width="100%" border="0" cellpadding="0" cellspacing="0">
-                <tr>
-                  <td width="20%" class="listhdrr">Name</td>
-                  <td width="30%" class="listhdrr">Description</td>
-                  <td width="20%" class="listhdrr">Address</td>
-                  <td width="10%" class="listhdrr">Type</td>
-                  <td width="10%" class="listhdrr">Server&nbsp;pool</td>
-                  <td width="5%" class="list"></td>
+	  <table class="tabcont sortable" width="100%" border="0" cellpadding="0" cellspacing="0">
+		<tr>
+		  <td width="5%" class="listhdrr">Primary</td>
+		  <td width="20%" class="listhdrr">Advanced</td>
+		  <td width="20%" class="listhdrr">Name</td>
+		  <td width="30%" class="listhdrr">Description</td>
+		  <td width="20%" class="listhdrr">Address</td>
+		  <td width="5%" class="listhdrr">Type</td>
+		  <td width="10%" class="listhdrr">Server&nbsp;pool</td>
+		  <td width="20%" class="listhdrr">Parent</td>
+		  <td width="5%" class="list"></td>
 		</tr>
 <?php
-		$i = 0;
-		foreach ($a_backend as $backend):
-		$textss = $textse = "";
-		if ($backend['status'] != 'active') {
-			$textss = "<span class=\"gray\">";
-			$textse = "</span>";
+		
+		function sort_backends(&$a, &$b) {
+			if ($a['ipport'] != $b['ipport'])
+				return $a['ipport'] > $b['ipport'] ? 1 : -1;
+			if ($a['secondary'] != $b['secondary'])
+				return $a['secondary'] > $b['secondary'] ? 1 : -1;
+			if ($a['name'] != $b['name'])
+				return $a['name'] > $b['name'] ? 1 : -1;
+			return 0;
 		}
-?>
-                <tr>
-                  <td class="listlr" ondblclick="document.location='haproxy_listeners_edit.php?id=<?=$i;?>';">
-					<?=$textss . $backend['name'] . $textse;?>
-                  </td>
-                  <td class="listlr" ondblclick="document.location='haproxy_listeners_edit.php?id=<?=$i;?>';">
-					<?=$textss . $backend['desc'] . $textse;?>
-                  </td>
-                  <td class="listlr" ondblclick="document.location='haproxy_listeners_edit.php?id=<?=$i;?>';">
-<?php
-			echo $textss;
-			if($backend['extaddr'] == "any") 
-				echo "0.0.0.0";
-			elseif($backend['extaddr']) 
-				echo $backend['extaddr'];
-			else 
-				echo get_current_wan_address('wan');
-			echo ":" . $backend['port'];
-			echo $textse;
-?>
-                  </td>
-                  <td class="listlr" ondblclick="document.location='haproxy_listeners_edit.php?id=<?=$i;?>';">
-					<?=$textss . $backend['type'] . $textse;?>
-                  </td>
-                  <td class="listlr" ondblclick="document.location='haproxy_listeners_edit.php?id=<?=$i;?>';">
-					<?=$textss . $backend['backend_serverpool'] . $textse;?>
-                  </td>
-                  <td class="list" nowrap>
-                    <table border="0" cellspacing="0" cellpadding="1">
-                      <tr>
-                        <td valign="middle"><a href="haproxy_listeners_edit.php?id=<?=$i;?>"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_e.gif" width="17" height="17" border="0"></a></td>
-                        <td valign="middle"><a href="haproxy_listeners.php?act=del&id=<?=$i;?>" onclick="return confirm('Do you really want to delete this entry?')"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_x.gif" width="17" height="17" border="0"></a></td>
-                        <td valign="middle"><a href="haproxy_listeners_edit.php?dup=<?=$i;?>"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" border="0"></a></td>
-                      </tr>
-                    </table>
-                  </td>
-                </tr>
-                <?php $i++; endforeach; ?>
-				<tfoot>
-                <tr>
-                  <td class="list" colspan="5"></td>
-                  <td class="list">
-                    <table border="0" cellspacing="0" cellpadding="1">
-                      <tr>
-                        <td valign="middle"><a href="haproxy_listeners_edit.php"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" border="0"></a></td>
-                      </tr>
-                    </table>
-                  </td>
-                </tr>
-				</tfoot>
-              </table>
+		foreach($a_backend as &$backend2) {
+			$backend2['ipport'] = get_frontend_ipport($backend2);
+		}
+		usort($a_backend,'sort_backends');
+		
+		$certimg = "/themes/{$g['theme']}/images/icons/icon_frmfld_cert.png";
+		unset($ipport_previous);
+		foreach ($a_backend as $backend):
+			$backendname = $backend['name'];
+			$textgray = $backend['status'] != 'active' ? " gray" : "";
+			if (isset($ipport_previous ) && $backend['ipport'] != $ipport_previous):
+			?>
+				<tr class="<?=$textgray?>"><td collspan="7">&nbsp;</td></tr>
+			<?
+			endif;
+			$ipport_previous = $backend['ipport'];
+			?>
+			<tr class="<?=$textgray?>">
+			  <td class="listlr" style="<?=$backend['secondary']=='yes'?"visibility:hidden;":""?>" ondblclick="document.location='haproxy_listeners_edit.php?id=<?=$backendname;?>';">
+				<?=$backend['secondary']!='yes'?"yes":"no";?>
+			  </td>
+			  <td class="listlr" ondblclick="document.location='haproxy_listeners_edit.php?id=<?=$backendname;?>';">
+				<? if (strtolower($backend['type']) == "http" && $backend['ssloffload']):
+					$cert = lookup_cert($backend['ssloffloadcert']);?>
+					<img src="<?=$certimg;?>" alt="SSL offloading" title="SSL offloading cert: '<?=$cert['descr'];?>'" border="0" height="16" width="16" />
+				<? endif;?>
+			  </td>
+			  <td class="listlr" ondblclick="document.location='haproxy_listeners_edit.php?id=<?=$backendname;?>';">
+				<?=$backend['name'];?>
+			  </td>
+			  <td class="listlr" ondblclick="document.location='haproxy_listeners_edit.php?id=<?=$backendname;?>';">
+				<?=$backend['desc'];?>
+			  </td>
+			  <td class="listlr" ondblclick="document.location='haproxy_listeners_edit.php?id=<?=$backendname;?>';">
+				<?=$backend['ipport'];?>
+			  </td>
+			  <td class="listlr" ondblclick="document.location='haproxy_listeners_edit.php?id=<?=$backendname;?>';">
+				<?=$backend['type']?>
+			  </td>
+			  <td class="listlr" ondblclick="document.location='haproxy_listeners_edit.php?id=<?=$backendname;?>';">
+				<?=$backend['backend_serverpool']?>
+			  </td>
+			  <td class="listlr" ondblclick="document.location='haproxy_listeners_edit.php?id=<?=$backendname;?>';">
+				<?=$backend['secondary'] == 'yes' ? $backend['primary_frontend'] : "";?>
+			  </td>
+			  <td class="list" nowrap>
+				<table border="0" cellspacing="0" cellpadding="1">
+				  <tr>
+					<td valign="middle"><a href="haproxy_listeners_edit.php?id=<?=$backendname;?>"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_e.gif" width="17" height="17" border="0"></a></td>
+					<td valign="middle"><a href="haproxy_listeners.php?act=del&id=<?=$backendname;?>" onclick="return confirm('Do you really want to delete this entry?')"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_x.gif" width="17" height="17" border="0"></a></td>
+					<td valign="middle"><a href="haproxy_listeners_edit.php?dup=<?=$backendname;?>"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" border="0"></a></td>
+				  </tr>
+				</table>
+			  </td>
+			</tr>
+			<?php endforeach; ?>
+			<tfoot>
+			<tr>
+			  <td class="list" colspan="8"></td>
+			  <td class="list">
+				<table border="0" cellspacing="0" cellpadding="1">
+				  <tr>
+					<td valign="middle"><a href="haproxy_listeners_edit.php"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" border="0"></a></td>
+				  </tr>
+				</table>
+			  </td>
+			</tr>
+			</tfoot>
+		  </table>
 	   </div>
 	</table>
-            </form>
+	</form>
 <?php include("fend.inc"); ?>
 </body>
 </html>
diff --git a/config/haproxy-devel/haproxy_listeners_edit.php b/config/haproxy-devel/haproxy_listeners_edit.php
index 3139250c..0826010c 100644
--- a/config/haproxy-devel/haproxy_listeners_edit.php
+++ b/config/haproxy-devel/haproxy_listeners_edit.php
@@ -101,18 +101,20 @@ function get_certificates_server($get_includeWebCert=false) {
 		if ($usagestr != "")
 			$usagestr = " (".trim($usagestr).")";
 		
-		$certificates[$cert['refid']] = $cert['descr'] . $caname . $inuse . $revoked . $usagestr;
+		$certificates[$cert['refid']]['name'] = $cert['descr'] . $caname . $inuse . $revoked . $usagestr;
 	}
 	return $certificates;
 }
 
-function echo_html_select($name, $keyvaluelist, $selected, $listEmptyMessage="")
+function echo_html_select($name, $keyvaluelist, $selected, $listEmptyMessage="", $onchangeEvent="")
 {
-	if (count($keyvaluelist)>0){						
-		echo "<select name=\"$name\" class=\"formselect\">";
+	if (count($keyvaluelist)>0){
+		if ($onchangeEvent != "")
+			$onchangeEvent .= " onchange=$onchangeEvent";
+		echo "<select name=\"$name\" id=\"$name\" class=\"formselect\"$onchangeEvent>";
 		foreach($keyvaluelist as $key => $desc){
 			$selectedhtml = $key == $selected ? "selected" : "";
-			echo "<option value=\"{$key}\" {$selectedhtml}>{$desc}</option>";
+			echo "<option value=\"{$key}\" {$selectedhtml}>{$desc['name']}</option>";
 		}
 		echo "</select>";
 	} else {
@@ -141,7 +143,7 @@ $a_backend = &$config['installedpackages']['haproxy']['ha_backends']['item'];
 $a_pools = &$config['installedpackages']['haproxy']['ha_pools']['item'];
 
 global $simplefields;
-$simplefields = array('name','desc','status','secondary','type','forwardfor','httpclose','extaddr','backend_serverpool',
+$simplefields = array('name','desc','status','secondary','primary_frontend','type','forwardfor','httpclose','extaddr','backend_serverpool',
 	'max_connections','client_timeout','port','ssloffloadcert','dcertadv','ssloffload','ssloffloadacl');
 
 if (isset($_POST['id']))
@@ -152,6 +154,8 @@ else
 if (isset($_GET['dup']))
 	$id = $_GET['dup'];
 
+$id = get_frontend_id($id);
+
 if (isset($id) && $a_backend[$id]) {
 	$pconfig['a_acl']=&$a_backend[$id]['ha_acls']['item'];	
 	$pconfig['advanced'] = base64_decode($a_backend[$id]['advanced']);
@@ -193,7 +197,7 @@ if ($_POST) {
 	/* Ensure that our pool names are unique */
 	for ($i=0; isset($config['installedpackages']['haproxy']['ha_backends']['item'][$i]); $i++)
 		if (($_POST['name'] == $config['installedpackages']['haproxy']['ha_backends']['item'][$i]['name']) && ($i != $id))
-			$input_errors[] = "This frontend name has already been used. Frontend names must be unique.";
+			$input_errors[] = "This frontend name has already been used. Frontend names must be unique. $i != $id";
 
 	$a_acl=array();			
 	$acl_names=array(); 
@@ -273,7 +277,6 @@ if (!$id)
 
 $pgtitle = "HAProxy: Frontend: Edit";
 include("head.inc");
-
 ?>
 
 <body link="#0000CC" vlink="#0000CC" alink="#0000CC">
@@ -281,6 +284,7 @@ include("head.inc");
 	.haproxy_mode_http{display:none;}
 	.haproxy_ssloffloading_enabled{display:none;}
 	.haproxy_primary{}
+	.haproxy_secondary{display:none;}
   </style>
 
 <?php if($one_two): ?>
@@ -445,21 +449,32 @@ include("head.inc");
 	
 	function updatevisibility()
 	{
+		d = document;
+		ssloffload = d.getElementById("ssloffload");
+		type = d.getElementById("type");
+		secondary = d.getElementById("secondary");
+		primary_frontend = d.getElementById("primary_frontend");
+		
+		if (secondary.checked)
+			type = primaryfrontends[primary_frontend.value]['ref']['type'];
+		else
+			type = d.getElementById("type").value;
+			
 		setCSSdisplay(".haproxy_ssloffloading_enabled", ssloffload.checked);
-		setCSSdisplay(".haproxy_mode_http", type.value == "http");
+		setCSSdisplay(".haproxy_mode_http", type == "http");
 		setCSSdisplay(".haproxy_primary", !secondary.checked);
+		setCSSdisplay(".haproxy_secondary", secondary.checked);
+		
+		type_change(type);
 	}
 	
-	function type_change() {
-		var type, d, i, j, el, row;
+	function type_change(type) {
+		var d, i, j, el, row;
 		var count = <?=count($a_acltypes);?>;
 		var acl = [ <?php foreach ($a_acltypes as $expr) echo "'".$expr['name']."'," ?> ];
 		var mode = [ <?php foreach ($a_acltypes as $expr) echo "'".$expr['mode']."'," ?> ];
 
         d = document;
-		type = d.getElementById("type").value;
-		
-
 		for (i = 0; i < 99; i++) {
 			el = d.getElementById("acl_expression" + i);
 			row = d.getElementById("aclrow" + i);
@@ -475,7 +490,6 @@ include("head.inc");
 				}
 			}
 		}
-		updatevisibility();
 	}
 </script>
 <?php include("fbegin.inc"); ?>
@@ -501,25 +515,34 @@ include("head.inc");
 				<input name="desc" type="text" <?if(isset($pconfig['desc'])) echo "value=\"{$pconfig['desc']}\"";?> size="64">
 			</td>
 		</tr>
+		<tr align="left">
+			<td width="22%" valign="top" class="vncellreq">Status</td>
+			<td width="78%" class="vtable" colspan="2">
+				<select name="status" id="status">
+					<option value="active"<?php if($pconfig['status'] == "active") echo " SELECTED"; ?>>Active</option>
+					<option value="disabled"<?php if($pconfig['status'] == "disabled") echo " SELECTED"; ?>>Disabled</option>
+				</select>
+			</td>
+		</tr>		
 		<tr align="left">
 			<td width="22%" valign="top" class="vncell">Shared Frontend</td>
 			<td width="78%" class="vtable" colspan="2">
-				<input id="secondary" name="secondary" type="checkbox" value="yes" <?php if ($pconfig['secondary']=='yes') echo "checked"; ?> onclick="updatevisibility();">secondary backend</checkbox><br/>
+				<input id="secondary" name="secondary" type="checkbox" value="yes" <?php if ($pconfig['secondary']=='yes') echo "checked"; ?> onclick="updatevisibility();"/>
 				Use this setting to configure multiple backends/accesslists for a single frontend.<br/>
 				All settings of which only 1 can exist will be hidden.<br/>
 				The frontend settings will be merged into 1 set of frontend configuration.
 			</td>
 		</tr>
-		<tr align="left">
-			<td width="22%" valign="top" class="vncellreq">Status</td>
+		<tr class="haproxy_secondary" align="left">
+			<td width="22%" valign="top" class="vncellreq">Primary frontend</td>
 			<td width="78%" class="vtable" colspan="2">
-				<select name="status" id="status">
-					<option value="active"<?php if($pconfig['status'] == "active") echo " SELECTED"; ?>>Active</option>
-					<option value="disabled"<?php if($pconfig['status'] == "disabled") echo " SELECTED"; ?>>Disabled</option>
-				</select>
+				<?
+				$primaryfrontends = get_haproxy_frontends($pconfig['name']);
+				echo_html_select('primary_frontend',$primaryfrontends, $pconfig['primary_frontend'],"You must first create a 'primary' frontend.","updatevisibility();");
+				?>
 			</td>
-		</tr>		
-		<tr>
+		</tr>
+		<tr class="haproxy_primary">
 			  <td width="22%" valign="top" class="vncellreq">External address</td>
 			  <td width="78%" class="vtable">
 				<select name="extaddr" class="formfld">
@@ -546,7 +569,7 @@ include("head.inc");
 				</span>
 			  </td>
 		</tr>
-		<tr align="left">
+		<tr class="haproxy_primary" align="left">
 			<td width="22%" valign="top" class="vncellreq">External port</td>
 			<td width="78%" class="vtable" colspan="2">
 				<input name="port" type="text" <?if(isset($pconfig['port'])) echo "value=\"{$pconfig['port']}\"";?> size="30" maxlength="500">
@@ -576,10 +599,10 @@ include("head.inc");
 					}
 				?>
 				</select>
-		<tr align="left">
+		<tr class="haproxy_primary" align="left">
 			<td width="22%" valign="top" class="vncellreq">Type</td>
 			<td width="78%" class="vtable" colspan="2">
-				<select name="type" id="type" onchange="type_change();">
+				<select name="type" id="type" onchange="updatevisibility();">
 					<option value="http"<?php if($pconfig['type'] == "http") echo " SELECTED"; ?>>HTTP</option>
 					<option value="https"<?php if($pconfig['type'] == "https") echo " SELECTED"; ?>>HTTPS</option>
 					<option value="tcp"<?php if($pconfig['type'] == "tcp") echo " SELECTED"; ?>>TCP</option>
@@ -663,7 +686,11 @@ include("head.inc");
 				<br/>
 				The 'forwardfor' option creates an HTTP 'X-Forwarded-For' header which
 				contains the client's IP address. This is useful to let the final web server
-				know what the client address was (eg for statistics on domains)
+				know what the client address was. (eg for statistics on domains)<br/>
+				<br/>
+				It is important to note that as long as HAProxy does not support keep-alive connections, 
+				only the first request of a connection will receive the header. For this reason, 
+				it is important to ensure that option httpclose is set when using this option.
 			</td>
 		</tr>
 		<tr align="left">
@@ -744,7 +771,7 @@ include("head.inc");
 				<input name="Submit" type="submit" class="formbtn" value="Save">  
 				<input type="button" class="formbtn" value="Cancel" onclick="history.back()">
 				<?php if (isset($id) && $a_backend[$id]): ?>
-				<input name="id" type="hidden" value="<?=$id;?>">
+				<input name="id" type="hidden" value="<?=$a_backend[$id]['name'];?>">
 				<?php endif; ?>
 			</td>
 		</tr>
@@ -757,6 +784,12 @@ include("head.inc");
 	</div>
 	</form>
 <br>
+<script type="text/javascript">
+<?
+	phparray_to_javascriptarray($primaryfrontends,"primaryfrontends",Array('/*','/*/name','/*/ref','/*/ref/type','/*/ref/ssloffload'));
+?>
+
+</script>
 <script type="text/javascript">
 	field_counter_js = 3;
 	rows = 1;
diff --git a/config/haproxy-devel/haproxy_pool_edit.php b/config/haproxy-devel/haproxy_pool_edit.php
index f244d3df..2ee880a2 100644
--- a/config/haproxy-devel/haproxy_pool_edit.php
+++ b/config/haproxy-devel/haproxy_pool_edit.php
@@ -450,7 +450,7 @@ row_helper();
 			<td width="22%" valign="top" class="vncell">Check freq</td>
 			<td width="78%" class="vtable" colspan="2">
 				<input name="checkinter" type="text" <?if(isset($pconfig['checkinter'])) echo "value=\"{$pconfig['checkinter']}\"";?>size="20"> milliseconds
-				<br/>Defaults to 1000 if left blank.
+				<br/>For HTTP/HTTPS defaults to 1000 if left blank. For TCP no check will be performed if left empty.
 			</td>
 		</tr>
 		<tr align="left">
-- 
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