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+<?php
+
+ ////
+ // vpn_config/index.php
+ // Web app for creating OpenVPN client configurations
+ // @author Filipp Lepalaan <filipp@mcare.fi>
+ // @copyright (c) 2010 Filipp Lepalaan
+
+ session_start();
+
+ // Set some defaults
+ $port = ($_SESSION['port']) ? $_SESSION['port'] : '1194';
+ $name = ($_SESSION['name']) ? $_SESSION['name'] : 'example.com';
+ $remote = ($_SESSION['remote']) ? $_SESSION['remote'] : 'vpn.example.com';
+
+ if ($_POST['reset']) {
+ session_destroy();
+ }
+
+ if (!empty($_POST['cert']) && !$_POST['reset'])
+ {
+ // Save some settings for later use
+ $_SESSION['ca'] = $_POST['ca'];
+ $_SESSION['port'] = $_POST['port'];
+ $_SESSION['name'] = $_POST['name'];
+ $_SESSION['remote'] = $_POST['remote'];
+ $_SESSION['advanced'] = $_POST['advanced'];
+
+ $tmpdir = '/tmp/'.uniqid();
+ mkdir($tmpdir);
+ file_put_contents("$tmpdir/ca.crt", $_POST['ca']);
+ file_put_contents("$tmpdir/cert.crt", $_POST['cert']);
+ file_put_contents("$tmpdir/key.key", $_POST['key']);
+ $dns_support = ($_POST['use_dns']) ? 'true' : 'false';
+
+ $config =<<<EOT
+#viscosity startonopen false
+#viscosity dhcp true
+#viscosity dnssupport $dns_support
+#viscosity name ${_POST['name']}
+remote {$_POST['remote']} {$_POST['port']}
+persist-key
+persist-tun
+tls-client
+proto udp
+ca ca.crt
+key key.key
+cert cert.crt
+dev tun
+nobind
+pull
+resolv-retry infinite
+{$_POST['use_lzo']}
+{$_POST['advanced']}
+EOT;
+
+ $cf = 'config';
+
+ if ($_POST['client'] == 'Tunnelblick') {
+ // Tunnelblick uses the name of the file
+ $trans = array('&' => '_', '/' => '_', ' ' => '');
+ $cf = strtr($_POST['name'], $trans);
+ }
+
+ file_put_contents("${tmpdir}/{$cf}.conf", $config);
+
+ $filename = ($_POST['user'] != 'username') ? $_POST['user'] : time();
+ $outfile = '/tmp/openvpn_'.$filename.'.tgz';
+
+ // "Pack it up, pack it in..."
+ `tar -czvf {$outfile} {$tmpdir}`;
+
+ // "... let me begin"
+ header('Expires: 0');
+ header('Pragma: public');
+ header('Content-Transfer-Encoding: binary');
+ header('Content-Description: File Transfer');
+ header('Content-Length: '.filesize($outfile));
+ header('Content-Type: application/octet-stream');
+ header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
+ header('Content-Disposition: attachment; filename='.basename($outfile));
+
+ ob_clean();
+ flush();
+ readfile($outfile);
+
+ `srm -rs $tmpdir $outfile`;
+ exit();
+ }
+
+?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
+
+ <title>vpn_config - Define OpenVPN Connection</title>
+ <style type="text/css" media="screen">
+ body {
+ margin:0;
+ padding:0;
+ font:75% "Lucida Grande", "Trebuchet MS", Verdana, sans-serif;
+ }
+ #page {
+ width:800px;
+ margin:20px auto 20px auto;
+ }
+ fieldset {
+ padding:10px;
+ margin-bottom:15px;
+ border:1px solid #999;
+ -moz-border-radius:8px;
+ -webkit-border-radius:8px;
+ }
+ label {
+ float:left;
+ width:100px;
+ display:block;
+ margin-right:10px;
+ }
+ form {
+ text-align:top;
+ }
+ textarea, input[type="text"] {
+ padding:5px;
+ width:635px;
+ resize:none;
+ font-size:12px;
+ }
+ legend {
+ color:#555;
+ font-weight:bold;
+ }
+ #use_lzo {
+ margin-left:110px;
+ }
+ #footer {
+ font-size:8pt;
+ text-align:center;
+ }
+ </style>
+</head>
+
+<body>
+<div id="page">
+ <form action="#" method="post" accept-charset="utf-8" target="_blank">
+ <fieldset id="general">
+ <legend>General</legend>
+ <label>Connection:</label>
+ <input
+ id="name"
+ type="text"
+ name="name"
+ style="width:534px"
+ value="<?php echo $name ?>" />
+ &nbsp;
+ <input
+ id="user"
+ type="text"
+ name="user"
+ value="username"
+ style="width:75px" />
+ <br/>
+ <label>Remote Server:</label>
+ <input
+ id="remote"
+ type="text"
+ name="remote"
+ style="width:534px"
+ value="<?php echo $remote ?>" />
+ :
+ <input
+ id="port"
+ type="text"
+ name="port"
+ style="width:75px"
+ value="<?php echo $port ?>" />
+ <br/>
+ <label>VPN Software:</label>
+ <select name="client" id="client">
+ <option>Viscosity</option>
+ <option>Tunnelblick</option>
+ </select>
+ </fieldset>
+
+ <fieldset id="certificates">
+ <legend>Certificates</legend>
+ <label>Certificate auth.:</label>
+ <textarea name="ca" rows="8" cols="40"><?php echo $_SESSION['ca']; ?></textarea>
+ <br/>
+ <label>Certificate:</label>
+ <textarea name="cert" rows="8" cols="40"></textarea>
+ <br/>
+ <label>Private Key:</label>
+ <textarea name="key" rows="8" cols="40"></textarea>
+ </fieldset>
+
+ <fieldset id="options">
+ <legend>Options</legend>
+ <label>Advanced:</label>
+ <textarea
+ name="advanced"
+ rows="8" cols="40"><?php echo $_SESSION['advanced'] ?></textarea>
+ <br/>
+ <input
+ type="checkbox"
+ name="use_lzo"
+ id="use_lzo"
+ checked="checked"
+ value="comp-lzo"/>&nbsp;enable LZO compression
+ <input
+ type="checkbox"
+ name="use_dns"
+ id="use_dns"
+ checked="checked" />&nbsp;enable DNS support
+ <p>
+ <input type="submit" style="float:right" value="Submit"/>
+ <input type="submit" name="reset" style="float:right" value="Reset"/>
+ </p>
+ </fieldset>
+ </form>
+ <div id="footer">Made by Filipp | <a href="">source@github</a></div>
+</div>
+<script type="text/javascript" charset="utf-8">
+ document.getElementById('name').focus();
+</script>
+</body>
+</html>