LDAPAccountManager/lam-0.4/templates/login.php

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<?php
/*
$Id$
This code is part of LDAP Account Manager (http://www.sourceforge.net/projects/lam)
Copyright (C) 2003 Michael Duergner
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; either version 2 of the License, or
(at your option) any later version.
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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
LDAP Account Manager checking login datas.
*/
include_once("../lib/config.inc"); // Include config.inc which provides Config class
session_save_path("../sess"); // Set session save path
@session_start(); // Start LDAP Account Manager session
function display_LoginPage($config_object,$profile)
{
global $error_message;
// generate 256 bit key and initialization vector for user/passwd-encryption
// check if we can use /dev/random otherwise use /dev/urandom or rand()
if(function_exists(mcrypt_create_iv)) {
$key = @mcrypt_create_iv(32, MCRYPT_DEV_RANDOM);
if (! $key) $key = @mcrypt_create_iv(32, MCRYPT_DEV_URANDOM);
if (! $key) {
srand((double)microtime()*1234567);
$key = mcrypt_create_iv(32, MCRYPT_RAND);
}
$iv = @mcrypt_create_iv(32, MCRYPT_DEV_RANDOM);
if (! $iv) $iv = @mcrypt_create_iv(32, MCRYPT_DEV_URANDOM);
if (! $iv) {
srand((double)microtime()*1234567);
$iv = mcrypt_create_iv(32, MCRYPT_RAND);
}
}
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// use Blowfish if MCrypt is not available
else {
// generate iv and key for encryption
$key = "";
$iv = "";
while (strlen($key) < 30) $key .= mt_rand();
while (strlen($iv) < 30) $iv .= mt_rand();
}
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// save both in cookie
setcookie("Key", base64_encode($key), 0, "/");
setcookie("IV", base64_encode($iv), 0, "/");
$_SESSION['language'] = $config_object->get_defaultLanguage();
$current_language = explode(":",$_SESSION['language']);
$_SESSION['header'] = "<?xml version=\"1.0\" encoding=\"" . $current_language[1] . "\"?>\n";
$_SESSION['header'] .= "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\n\n";
$_SESSION['header'] .= "<html>\n<head>\n";
$_SESSION['header'] .= "<meta http-equiv=\"content-type\" content=\"text/html; charset=" . $current_language[1] . "\">\n";
$_SESSION['header'] .= "<meta http-equiv=\"pragma\" content=\"no-cache\">\n <meta http-equiv=\"cache-control\" content=\"no-cache\">";
// loading available languages from language.conf file
$languagefile = "../config/language";
if(is_file($languagefile) == True)
{
$file = fopen($languagefile, "r");
$i = 0;
while(!feof($file))
{
$line = fgets($file, 1024);
if($line == "" || $line == "\n" || $line[0] == "#") continue; // ignore comment and empty lines
$value = explode(":", $line);
$languages[$i]["link"] = $value[0] . ":" . $value[1];
$languages[$i]["descr"] = $value[2];
if(rtrim($line) == $_SESSION["language"])
{
$languages[$i]["default"] = "YES";
}
else
{
$languages[$i]["default"] = "NO";
}
$i++;
}
fclose($file);
}
else
{
//TODO Generate Status message
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$message = _("Unable to load available languages. Setting English as default language. For further instructions please contact the Admin of this site.");
}
$profiles = getConfigProfiles();
setlanguage(); // setting correct language
echo $_SESSION["header"];
?>
<title>LDAP Account Manager -Login-</title>
<link rel="stylesheet" type="text/css" href="../style/layout.css">
</head>
<body>
<p align="center">
<a href="http://lam.sf.net" target="_blank"><img src="../graphics/banner.jpg" border="1" alt="LDAP Account Manager"></a>
</p>
<table width="100%" border="0">
<tr>
<td width="100%" align="right">
<a href="./config/conflogin.php" target="_self"><?php echo _("Configuration Login"); ?></a>
</td>
</tr>
</table>
<hr><br><br>
<?php
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// check if all password hashes are possible
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if ((! function_exists('mHash')) && (! function_exists('sha1'))) {
StatusMessage("INFO", "Your PHP does not support MHash or sha1(), you will only be able to use CRYPT/PLAIN/MD5/SMD5 for user passwords!", "Please install MHash or update to PHP >4.3.");
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echo "<br><br>";
}
// check if PHP has LDAP support
if (! function_exists('ldap_search')) {
StatusMessage("ERROR", "Your PHP has no LDAP support!", "Please install the LDAP extension for PHP.");
echo "<br><br>";
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}
?>
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<form action="login.php" method="post">
<table width="650" align="center" border="2" rules="none" bgcolor="white">
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<tr>
<td style="border-style:none" width="70" rowspan="9">
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<img src="../graphics/lam.png" alt="Logo">
</td>
<td style="border-style:none" height="70" colspan="2" align="center">
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<font color="darkblue"><b><big><?php echo _("Enter Username and Password for Account"); ?></big></b></font>
</td>
<td style="border-style:none" rowspan="9" width="70">
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&nbsp;
</td>
</tr>
<tr>
<td style="border-style:none" height="35" align="right"><b>
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<?php
echo _("Username") . ":";
?>
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</b>&nbsp;&nbsp;</td>
<td style="border-style:none" height="35" align="left">
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<select name="username" size="1">
<?php
$admins = $config_object->get_Admins();
for($i = 0; $i < count($admins); $i++) {
$text = explode(",", $admins[$i]);
$text = explode("=", $text[0]);
?>
<option value="<?php echo $admins[$i]; ?>"><?php echo $text[1]; ?></option>
<?php
}
?>
</select>
</td>
</tr>
<tr>
<td style="border-style:none" height="35" align="right"><b>
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<?php
echo _("Password") . ":";
?>
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</b>&nbsp;&nbsp;</td>
<td style="border-style:none" height="35" align="left">
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<input type="password" name="passwd">
</td>
</tr>
<tr>
<?php
if($message != "") {
?>
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<td height="35" colspan="3" align="center">
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<?php
echo $message;
?>
</td>
<?php
}
else
{
?>
<td style="border-style:none" align="right"><b>
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<?php
echo _("Your Language") . ":";
?>
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</b>&nbsp;&nbsp;</td>
<td style="border-style:none" height="35" align="left">
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<select name="language" size="1">
<?php
for($i = 0; $i < count($languages); $i++) {
if($languages[$i]["default"] == "YES") {
?>
<option selected value="<?php echo $languages[$i]["link"] . ":" . $languages[$i]["descr"]; ?>"><?php echo $languages[$i]["descr"]; ?></option>
<?php
}
else
{
?>
<option value="<?php echo $languages[$i]["link"] . ":" . $languages[$i]["descr"]; ?>"><?php echo $languages[$i]["descr"]; ?></option>
<?php
}
}
?>
</select>
</td>
<?php
}
?>
</tr>
<tr>
<td style="border-style:none" height="50" colspan="2" align="center">
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<input name="checklogin" type="submit" value="<?php echo _("Login"); ?>">
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</td>
</tr>
<tr>
<td style="border-style:none" height="50" colspan="2" align="center">
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<?php
if($error_message != "") {
echo "<font color=\"red\"><b>" . $error_message . "</b></font>";
}
?>
</td>
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</tr>
<tr>
<td style="border-style:none" height="30" colspan="2">
<hr>
<b>
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<?php
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echo _("LDAP server") . ": ";
?></b>
<?php echo $config_object->get_ServerURL(); ?>
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</td>
</tr>
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<tr>
<td style="border-style:none" height="30"><b>
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<?php
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echo _("Configuration profile") . ": ";
if(!$_POST['profileChange']) {
$_POST['profile'] = $_SESSION['config']->file;
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}
?></b>
<?php echo $_POST['profile']; ?>
</td>
<td style="border-style:none" height="30" align="right">
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<select name="profile" size="1">
<?php
for($i=0;$i<count($profiles);$i++) {
?>
<option value="<?php echo $profiles[$i]; ?>"><?php echo $profiles[$i]; ?></option>
<?php
}
?>
</select>
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<input name="profileChange" type="submit" value="<?php echo _("Change Profile"); ?>">
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</td>
</tr>
<tr>
<td style="border-style:none" height="10" colspan="2"></td>
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</tr>
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</table>
</form>
<br><br>
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</body>
</html>
<?php
}
// checking if the submitted username/password is correct.
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if($_POST['checklogin'])
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{
$_SESSION['lampath'] = realpath('../') . "/"; // Save full path to lam in session
include_once("../lib/ldap.inc"); // Include ldap.php which provides Ldap class
$_SESSION['ldap'] = new Ldap($_SESSION['config']); // Create new Ldap object
if($_POST['passwd'] == "")
{
$error_message = _("Empty Password submitted. Try again.");
display_LoginPage($_SESSION['config'],""); // Empty password submitted. Return to login page.
}
else
{
$result = $_SESSION['ldap']->connect($_POST['username'],$_POST['passwd']); // Connect to LDAP server for verifing username/password
if($result === 0) // Username/password correct. Do some configuration and load main frame.
{
$_SESSION['loggedIn'] = true;
$_SESSION['language'] = $_POST['language']; // Write selected language in session
$current_language = explode(":",$_SESSION['language']);
$_SESSION['header'] = "<?xml version=\"1.0\" encoding=\"" . $current_language[1] . "\"?>\n";
$_SESSION['header'] .= "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\n\n";
$_SESSION['header'] .= "<html>\n<head>\n";
$_SESSION['header'] .= "<meta http-equiv=\"content-type\" content=\"text/html; charset=" . $current_language[1] . "\">\n";
$_SESSION['header'] .= "<meta http-equiv=\"pragma\" content=\"no-cache\">\n <meta http-equiv=\"cache-control\" content=\"no-cache\">";
include("./main.php"); // Load main frame
}
else
{
if ($result === False)
{
$error_message = _("Cannot connect to specified LDAP-Server. Please try again.");
display_LoginPage($_SESSION['config'],""); // connection failed
}
elseif ($result == 81)
{
$error_message = _("Cannot connect to specified LDAP-Server. Please try again.");
display_LoginPage($_SESSION['config'],""); // connection failed
}
elseif ($result == 49)
{
$error_message = _("Wrong Password/Username combination. Try again.");
display_LoginPage($_SESSION['config'],""); // Username/password invalid. Return to login page.
}
else
{
$error_message = _("LDAP error, server says:") . "\n<br>($result) " . ldap_err2str($result);
display_LoginPage($_SESSION['config'],""); // other errors
}
}
}
}
// Reload loginpage after a profile change
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elseif($_POST['profileChange']) {
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$_SESSION['config'] = new Config($_POST['profile']); // Recreate the config object with the submited
display_LoginPage($_SESSION['config'],""); // Load login page
}
// Load login page
else
{
$_SESSION['loggedIn'] = false;
$default_Config = new CfgMain();
$default_Profile = $default_Config->default;
$_SESSION["config"] = new Config($default_Profile); // Create new Config object
display_LoginPage($_SESSION["config"],$default_Profile); // Load Login page
}
?>