<?php
/* $Id$ */
/*
    wizard.php
    Copyright (C) 2004 Scott Ullrich
    All rights reserved.

    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.

    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.
*/

##|+PRIV
##|*IDENT=page-pfsensewizardsubsystem
##|*NAME=pfSense wizard subsystem page
##|*DESCR=Allow access to the 'pfSense wizard subsystem' page.
##|*MATCH=wizard.php*
##|-PRIV


require("guiconfig.inc");
require("functions.inc");
require("filter.inc");
require("shaper.inc");
require("rrd.inc");

function gentitle_pkg($pgname) {
	global $config;
	return $config['system']['hostname'] . "." . $config['system']['domain'] . " - " . $pgname;
}

$stepid = htmlspecialchars($_GET['stepid']);
if (isset($_POST['stepid']))
    $stepid = htmlspecialchars($_POST['stepid']);
if (!$stepid) $stepid = "0";

$xml = htmlspecialchars($_GET['xml']);
if($_POST['xml']) $xml = htmlspecialchars($_POST['xml']);

if($xml == "") {
	$xml = "not_defined";
	print_info_box_np("ERROR:  Could not open " . $xml . ".");
	die;
} else {
	if (file_exists("{$g['www_path']}/wizards/{$xml}"))
		$pkg = parse_xml_config_pkg("{$g['www_path']}/wizards/" . $xml, "pfsensewizard");
	else {
		print_info_box_np("ERROR:  Could not open " . $xml . ".");
		die;
	}
}

$title          = $pkg['step'][$stepid]['title'];
$description    = $pkg['step'][$stepid]['description'];
$totalsteps     = $pkg['totalsteps'];

exec('/usr/bin/tar -tzf /usr/share/zoneinfo.tgz', $timezonelist);
$timezonelist = array_filter($timezonelist, 'is_timezone');
sort($timezonelist);

/* kill carriage returns */
for($x=0; $x<count($timezonelist); $x++)
		$timezonelist[$x] = str_replace("\n", "", $timezonelist[$x]);

if ($pkg['step'][$stepid]['includefile'])
	require($pkg['step'][$stepid]['includefile']);

if($pkg['step'][$stepid]['stepsubmitbeforesave']) {
		eval($pkg['step'][$stepid]['stepsubmitbeforesave']);
}

if ($_POST) {
    foreach ($pkg['step'][$stepid]['fields']['field'] as $field) {
        if($field['bindstofield'] <> "" and $field['type'] <> "submit") {
		$fieldname = $field['name'];
		$unset_fields = "";
		$fieldname = ereg_replace(" ", "", $fieldname);
		$fieldname = strtolower($fieldname);
		// update field with posted values.
                if($field['unsetfield'] <> "") $unset_fields = "yes";
		if($field['arraynum'] <> "") $arraynum = $field['arraynum'];
		if($field['bindstofield'])
			update_config_field( $field['bindstofield'], $_POST[$fieldname], $unset_fields, $arraynum, $field['type']);
        }

    }
    // run custom php code embedded in xml config.
    if($pkg['step'][$stepid]['stepsubmitphpaction'] <> "") {
		eval($pkg['step'][$stepid]['stepsubmitphpaction']);
    }
	write_config();
    $stepid++;
    if($stepid > $totalsteps) $stepid = $totalsteps;
}

$title          = $pkg['step'][$stepid]['title'];
$description    = $pkg['step'][$stepid]['description'];

function update_config_field($field, $updatetext, $unset, $arraynum, $field_type) {
	global $config;
	$field_split = split("->",$field);
	foreach ($field_split as $f) $field_conv .= "['" . $f . "']";
	if($field_conv == "") return;
	if($field_type == "checkbox" and $updatetext <> "on") {
		/*
		    item is a checkbox, it should have the value "on"
		    if it was checked
                */
		$text = "unset(\$config" . $field_conv . ");";
		eval($text);
		return;
	}

	if($field_type == "interfaces_selection") {
		$text = "unset(\$config" . $field_conv . ");";
		eval($text);
		$text = "\$config" . $field_conv . " = \"" . $updatetext . "\";";
		eval($text);
		return;
	}

	if($unset <> "") {
		$text = "unset(\$config" . $field_conv . ");";
		eval($text);
		$text = "\$config" . $field_conv . "[" . $arraynum . "] = \"" . $updatetext . "\";";
		eval($text);
	} else {
		if($arraynum <> "") {
			$text = "\$config" . $field_conv . "[" . $arraynum . "] = \"" . $updatetext . "\";";
		} else {
			$text = "\$config" . $field_conv . " = \"" . $updatetext . "\";";
		}
		eval($text);
	}
}

if($pkg['step'][$stepid]['stepbeforeformdisplay'] <> "") {
	// handle before form display event.
        // good for modifying posted values, etc.
	eval($pkg['step'][$stepid]['stepbeforeformdisplay']);
}

$pgtitle = array($title);
include("head.inc");

?>
<body link="#0000CC" vlink="#0000CC" alink="#0000CC" onLoad="enablechange();">

<?php
	if(file_exists("/usr/local/www/themes/{$g['theme']}/wizard.css")) 
		echo "<link rel=\"stylesheet\" href=\"/themes/{$g['theme']}/wizard.css\" media=\"all\" />\n";
	else 
		echo "<link rel=\"stylesheet\" href=\"/themes/{$g['theme']}/all.css\" media=\"all\" />";
?>

<?php if($pkg['step'][$stepid]['fields']['field'] <> "") { ?>
<script type="text/javascript">
<!--

function  FieldValidate(userinput,  regexp,  message)
{
                if(!userinput.match(regexp))
                                alert(message);
}

function enablechange() {
<?php
        foreach($pkg['step'][$stepid]['fields']['field'] as $field) {
                if(isset($field['enablefields']) or isset($field['checkenablefields'])) {
                        print "\t" . 'if (document.iform.' . strtolower($field['name']) . '.checked == false) {' . "\n";
                        if(isset($field['enablefields'])) {
                                $enablefields = explode(',', $field['enablefields']);
                                foreach($enablefields as $enablefield) {
                                        $enablefield = strtolower($enablefield);
                                        print "\t\t" . 'document.iform.' . $enablefield . '.disabled = 1;' . "\n";
                                }
                        }
                        if(isset($field['checkenablefields'])) {
                                $checkenablefields = explode(',', $field['checkenablefields']);
                                foreach($checkenablefields as $checkenablefield) {
                                        $checkenablefield = strtolower($checkenablefield);
                                        print "\t\t" . 'document.iform.' . $checkenablefield . '.checked = 0;' . "\n";
                                }
                        }
                        print "\t" . '} else {' . "\n";
                        if(isset($field['enablefields'])) {
                                foreach($enablefields as $enablefield) {
                                        $enablefield = strtolower($enablefield);
                                        print "\t\t" . 'document.iform.' . $enablefield . '.disabled = 0;' . "\n";
                                }
                        }
                        if(isset($field['checkenablefields'])) {
                                foreach($checkenablefields as $checkenablefield) {
                                        $checkenablefield = strtolower($checkenablefield);
                                        print "\t\t" . 'document.iform.' . $checkenablefield . '.checked = 1;' . "\n";
                                }
                        }
                        print "\t" . '}' . "\n";
                }
        }
?>
}
//-->
</script>
<?php } ?>

<form action="wizard.php" method="post" name="iform" id="iform">
<input type="hidden" name="xml" value="<?= $xml ?>">
<input type="hidden" name="stepid" value="<?= $stepid ?>">
<?php if ($savemsg) print_info_box($savemsg); ?>

<center>

&nbsp;<br>

<?php
	if($title == "Reload in progress") {
		$ip = fixup_string($_SERVER['HTTP_HOST']);
	} else {
		$ip = "/";
	}
	echo "<a href='$ip'>";
?>
<img border="0" src="./themes/<?= $g['theme']; ?>/images/logo.gif"></a>
<p>
<div style="width:700px;background-color:#ffffff" id="roundme">
<table bgcolor="#ffffff" width="600" cellspacing="0" cellpadding="3">
    <!-- wizard goes here -->
    <tr><td>&nbsp;</td></tr>
    <tr><td colspan='2'>
<?php
	if ($_GET['message'] != "")
		print_info_box(htmlspecialchars($_GET['message']));
	if ($_POST['message'] != "")
		print_info_box(htmlspecialchars($_POST['message']));
?></td></tr>
    <tr><td colspan='2'><center><b><?= fixup_string($description) ?></b></center></td></tr><tr><td>&nbsp;</td></tr>
    <?php
	if(!$pkg['step'][$stepid]['disableheader'])
		echo "<tr><td colspan=\"2\" class=\"listtopic\">" . fixup_string($title) . "</td></tr>";
    ?>

    <?php
	$inputaliases = array();
	if($pkg['step'][$stepid]['fields']['field'] <> "") {
		foreach ($pkg['step'][$stepid]['fields']['field'] as $field) {

		    $value = $field['value'];
		    $name  = $field['name'];

		    $name = ereg_replace(" ", "", $name);
		    $name = strtolower($name);

		    if($field['bindstofield'] <> "") {
				$arraynum = "";
				$field_conv = "";
				$field_split = split("->", $field['bindstofield']);
				// arraynum is used in cases where there is an array of the same field
				// name such as dnsserver (2 of them)
				if($field['arraynum'] <> "") $arraynum = "[" . $field['arraynum'] . "]";
				foreach ($field_split as $f) $field_conv .= "['" . $f . "']";
					$toeval = "\$value = \$config" . $field_conv . $arraynum . ";";
					eval($toeval);
					if ($field['type'] == "checkbox") {
						$toeval = "if(isset(\$config" . $field_conv . $arraynum . ")) \$value = \" CHECKED\";";
						eval($toeval);
					}
		    }

		    if(!$field['combinefieldsend'])
			echo "<tr>";

		    if ($field['type'] == "input") {
			if ($field['displayname']) {
				echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
                                echo $field['displayname'];
                                echo ":</td>\n";
			} else if(!$field['dontdisplayname']) {
				echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
				echo fixup_string($field['name']);
				echo ":</td>\n";
			}
			if(!$field['dontcombinecells'])
				echo "<td class=\"vtable\">\n";

			echo "<input id='" . $name . "' name='" . $name . "' value='" . $value . "'";
			if($field['validate'])
				echo " onChange='FieldValidate(this.value, \"{$field['validate']}\", \"{$field['message']}\");'";
			echo ">\n";


		    } else if ($field['type'] == "inputalias") {
			if ($field['displayname']) {
                                echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
                                echo $field['displayname'];
                                echo ":</td>\n";
			} else if(!$field['dontdisplayname']) {
				echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
				echo fixup_string($field['name']);
				echo ":</td>\n";
				$inputaliases[] = $name;
			}
			if(!$field['dontcombinecells'])
				echo "<td class=\"vtable\">\n";

			echo "<input  autocomplete='off' class='formfldalias' id='" . $name . "' name='" . $name . "' value='" . $value . "'";
			if($field['validate'])
				echo " onChange='FieldValidate(this.value, \"{$field['validate']}\", \"{$field['message']}\");'";
			echo ">\n";


		    } else if($field['type'] == "interfaces_selection") {
			$size = "";
			$multiple = "";
			$name = strtolower($name);
			echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
			echo fixup_string($field['displayname'] ? $field['displayname'] : $field['name']) . ":\n";
			echo "</td>";
			echo "<td class=\"vtable\">\n";
			if($field['size'] <> "") $size = "size=\"{$field['size']}\"";
			if($field['multiple'] <> "" and $field['multiple'] <> "0") {
			  $multiple = "multiple=\"multiple\"";
			  $name .= "[]";
			}
			echo "<select id='{$name}' name='{$name}' {$size} {$multiple}>\n";
			if($field['add_to_interfaces_selection'] <> "") {
				$SELECTED = "";
				if($field['add_to_interfaces_selection'] == $value) $SELECTED = " SELECTED";
				echo "<option value='" . $field['add_to_interfaces_selection'] . "'" . $SELECTED . ">" . $field['add_to_interfaces_selection'] . "</option>\n";
			}
			$interfaces = get_configured_interface_with_descr();
			foreach ($interfaces as $ifname => $iface) {
			  $SELECTED = "";
			  if ($value == $ifname) $SELECTED = " SELECTED";
			  $to_echo = "<option value='" . $ifname . "'" . $SELECTED . ">" . $iface . "</option>\n";
			  $to_echo .= "<!-- {$value} -->";
			  $canecho = 0;
			  if($field['interface_filter'] <> "") {
				if(stristr($ifname, $field['interface_filter']) == true)
					$canecho = 1;
			  } else {
				$canecho = 1;
			  }
			  if($canecho == 1)
				echo $to_echo;
			}
				echo "</select>\n";
			} else if ($field['type'] == "password") {
			if(!$field['dontdisplayname']) {
				echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
				echo fixup_string($field['name']);
				echo ":</td>\n";
			}
			if(!$field['dontcombinecells'])
				echo "<td class=\"vtable\">";
			echo "<input id='" . $name . "' name='" . $name . "' value='" . $value . "' type='password'>\n";
		    } else if ($field['type'] == "select") {
			if ($field['displayname']) {
                                echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
                                echo $field['displayname'];
                                echo ":</td>\n";
			} else if(!$field['dontdisplayname']) {
				echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
				echo fixup_string($field['name']);
				echo ":</td>\n";
			}
			if($field['size']) $size = " size='" . $field['size'] . "' ";
			if($field['multiple'] == "yes") $multiple = "MULTIPLE ";
			if(!$field['dontcombinecells'])
				echo "<td class=\"vtable\">\n";
			$onchange = "";
			foreach ($field['options']['option'] as $opt) {
				if($opt['enablefields'] <> "") {
					$onchange = "onchange=\"enableitems(this.selectedIndex);\" ";
				}
			}
			echo "<select " . $onchange . $multiple . $size . "id='" . $name . "' name='" . $name . "'>\n";
			foreach ($field['options']['option'] as $opt) {
				$selected = "";
				if($value == $opt['value']) $selected = " SELECTED";
			    echo "\t<option name='" . $opt['name'] . "' value='" . $opt['value'] . "'" . $selected . ">";
				if ($opt['displayname'])
					echo $opt['displayname'];
				else
					echo $opt['name'];
				echo "</option>\n";
			}
			echo "</select>\n";
		    } else if ($field['type'] == "textarea") {
			if ($field['displayname']) {
                                echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
                                echo $field['displayname'];
                                echo ":</td>\n";
			} else if(!$field['dontdisplayname']) {
				echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
				echo fixup_string($field['name']);
				echo ":</td>";
			}
			if(!$field['dontcombinecells'])
				echo "<td class=\"vtable\">";
			echo "<textarea id='" . $name . "' name='" . $name . ">" . $value . "</textarea>\n";
		    } else if ($field['type'] == "submit") {
			echo "<td>&nbsp;<br></td></tr>";
			echo "<tr><td colspan='2'><center>";
			echo "<input type='submit' name='" . $name . "' value='" . $field['name'] . "'>\n";
		    } else if ($field['type'] == "listtopic") {
			echo "<td>&nbsp;</td><tr>";
			echo "<tr><td colspan=\"2\" class=\"listtopic\">" . $field['name'] . "<br></td>\n";
		    } else if ($field['type'] == "subnet_select") {
			if ($field['displayname']) {
                                echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
                                echo $field['displayname'];
                                echo ":</td>\n";
			} else if(!$field['dontdisplayname']) {
				echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
				echo fixup_string($field['name']);
				echo ":</td>";
			}
			if(!$field['dontcombinecells'])
				echo "<td class=\"vtable\">";
			echo "<select name='{$name}'>\n";
			for($x=1; $x<33; $x++) {
				$CHECKED = "";
				if($value == $x) $CHECKED = " SELECTED";
				if($x <> 31)
					echo "<option value='{$x}' {$CHECKED}>{$x}</option>\n";
			}
			echo "</select>\n";
		    } else if ($field['type'] == "timezone_select") {
			if ($field['displayname']) {
                                echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
                                echo $field['displayname'];
                                echo ":</td>\n";
			} else if(!$field['dontdisplayname']) {
				echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
				echo fixup_string($field['name']);
				echo ":</td>";
			}
			if(!$field['dontcombinecells'])
				echo "<td class=\"vtable\">";
			echo "<select name='{$name}'>\n";
			foreach ($timezonelist as $tz) {
				$SELECTED = "";
				if ($value == $tz) $SELECTED = " SELECTED";
				echo "<option value='" . htmlspecialchars($tz) . "' {$SELECTED}>";
				echo htmlspecialchars($tz);
				echo "</option>\n";
			}
			echo "</select>\n";
		    } else if ($field['type'] == "checkbox") {
			if ($field['displayname']) {
                                echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
                                echo $field['displayname'];
                                echo ":</td>\n";
			} else if(!$field['dontdisplayname']) {
				echo "<td width=\"22%\" align=\"right\" class=\"vncellreq\">\n";
				echo $field['name'];
				echo ":</td>";
			}
			$checked = "";
			if($value <> "") $checked = " CHECKED";
			echo "<td class=\"vtable\"><input type='checkbox' id='" . $name . "' name='" . $name . "' " . $checked;
			if(isset($field['enablefields']) or isset($field['checkenablefields'])) echo " onClick=\"enablechange()\"";
			echo ">\n";
		    }

		    if($field['typehint'] <> "") {
			echo $field['typehint'];
		    }

		    if($field['description'] <> "") {
			echo "<br>" . $field['description'];
			echo "</td>";
		    }

		    if(!$field['combinefieldsbegin'])
			 echo "</tr>\n";

		    if($field['warning'] <> "") {
			echo "<br><b><font color=\"red\">" . $field['warning'] . "</font></b>";
		    }

		}
	}
    ?>
</table>
<br>&nbsp;
</div>
</form>
<script type="text/javascript">
<!--
	if (typeof ext_change != 'undefined') {
		ext_change();
	}
	if (typeof proto_change != 'undefined') {
		ext_change();
	}
	if (typeof proto_change != 'undefined') {
		proto_change();
	}

<?php
	$isfirst = 0;
	$aliases = "";
	$addrisfirst = 0;
	$aliasesaddr = "";
	if($config['aliases']['alias'] <> "" and is_array($config['aliases']['alias']))
		foreach($config['aliases']['alias'] as $alias_name) {
			if(!stristr($alias_name['address'], ".")) {
				if($isfirst == 1) $aliases .= ",";
				$aliases .= "'" . $alias_name['name'] . "'";
				$isfirst = 1;
			} else {
				if($addrisfirst == 1) $aliasesaddr .= ",";
				$aliasesaddr .= "'" . $alias_name['name'] . "'";
				$addrisfirst = 1;
			}
		}
?>

	var addressarray=new Array(<?php echo $aliasesaddr; ?>);
	var customarray=new Array(<?php echo $aliases; ?>);

	window.onload = function () {

		<?php
			$counter=0;
			foreach($inputaliases as $alias) {
				echo "var oTextbox$counter = new AutoSuggestControl(document.getElementById(\"$alias\"), new StateSuggestions(addressarray));\n";
				$counter++;
			}
		?>

	}

//-->
</script>
<script type="text/javascript">
NiftyCheck();
var bgcolor = document.getElementsByTagName("body")[0].style.backgroundColor;
Rounded("div#roundme","all",bgcolor,"#FFFFFF","smooth");
</script>

<?php

$fieldnames_array = Array();
if($pkg['step'][$stepid]['disableallfieldsbydefault'] <> "") {
	// create a fieldname loop that can be used with javascript
	// hide and enable features.
	echo "\n<script type=\"text/javascript\">\n";
	echo "function disableall() {\n";
	foreach ($pkg['step'][$stepid]['fields']['field'] as $field) {
		if($field['type'] <> "submit" and $field['type'] <> "listtopic") {
			if(!$field['donotdisable'] <> "") {
				array_push($fieldnames_array, $field['name']);
				$fieldname = ereg_replace(" ", "", $field['name']);
				$fieldname = strtolower($fieldname);
				echo "\tdocument.forms[0]." . $fieldname . ".disabled = 1;\n";
			}
		}
	}
	echo "}\ndisableall();\n";
	echo "function enableitems(selectedindex) {\n";
	echo "disableall();\n";
	$idcounter = 0;
	if($pkg['step'][$stepid]['fields']['field'] <> "") {
		echo "\tswitch(selectedindex) {\n";
		foreach ($pkg['step'][$stepid]['fields']['field'] as $field) {
			if($field['options']['option'] <> "") {
				foreach ($field['options']['option'] as $opt) {
					if($opt['enablefields'] <> "") {
						echo "\t\tcase " . $idcounter . ":\n";
						$enablefields_split = split(",", $opt['enablefields']);
						foreach ($enablefields_split as $efs) {
							$fieldname = ereg_replace(" ", "", $efs);
							$fieldname = strtolower($fieldname);
							if($fieldname <> "") {
								$onchange = "\t\t\tdocument.forms[0]." . $fieldname . ".disabled = 0; \n";
								echo $onchange;
							}
						}
						echo "\t\t\tbreak;\n";
					}
					$idcounter = $idcounter + 1;
				}
			}
		}
		echo "\t}\n";
	}
	echo "}\n";
	echo "disableall();\n";
	echo "</script>\n\n";
}


if($pkg['step'][$stepid]['stepafterformdisplay'] <> "") {
	// handle after form display event.
	eval($pkg['step'][$stepid]['stepafterformdisplay']);
}

if($pkg['step'][$stepid]['javascriptafterformdisplay'] <> "") {
	// handle after form display event.
        echo "\n<script type=\"text/javascript\">\n";
	echo $pkg['step'][$stepid]['javascriptafterformdisplay'] . "\n";
	echo "</script>\n\n";
}

/*
 *  HELPER FUNCTIONS
 */

function fixup_string($string) {
	global $config, $myurl;
	$newstring = $string;
	// fixup #1: $myurl -> http[s]://ip_address:port/
	switch($config['system']['webgui']['protocol']) {
		case "http":
			$proto = "http";
			break;
		case "https":
			$proto = "https";
			break;
		default:
			$proto = "http";
			break;
	}
	$port = $config['system']['webgui']['port'];
	if($port != "") {
		if(($port == "443" and $proto != "https") or ($port == "80" and $proto != "http")) {
			$urlport = ":" . $port;
		} elseif ($port != "80" and $port != "443") {
			$urlport = ":" . $port;
		} else {
			$urlport = "";
		}
	}
	$myurl = $proto . "://" . $_SERVER['HTTP_HOST'] . $urlport . "/";

	if (strstr($newstring, "\$myurl"))
		$newstring = str_replace("\$myurl", $myurl, $newstring);
	// fixup #2: $wanip
	if (strstr($newstring, "\$wanip")) {
		$curwanip = get_interface_ip();
		$newstring = str_replace("\$wanip", $curwanip, $newstring);
	}
	// fixup #3: $lanip
	if (strstr($newstring, "\$lanip")) {
		$lanip = get_interface_ip("lan");
		$newstring = str_replace("\$lanip", $lanip, $newstring);
	}
	// fixup #4: fix'r'up here.
	return $newstring;
}

function is_timezone($elt) {
	return !preg_match("/\/$/", $elt);
}

?>

</body>
</html>