<?php
/**
* LDAP PHP Change Password Webpage
* @author: Matt Rude <http://mattrude.com>
* @website: http://technology.mattrude.com/2010/11/ldap-php-change-password-webpage/
*
*
* GNU GENERAL PUBLIC LICENSE
* Version 2, June 1991
*
* Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* Everyone is permitted to copy and distribute verbatim copies
* of this license document, but changing it is not allowed.
*/
$message = array();
$message_css = "";
function changePassword($user,$oldPassword,$newPassword,$newPasswordCnf){
global $message;
global $message_css;
$server = "ldaps://ldap.immae.eu";
error_reporting(0);
$con = ldap_connect($server);
ldap_set_option($con, LDAP_OPT_PROTOCOL_VERSION, 3);
$user_dn = "uid=$user,ou=users,dc=immae,dc=eu";
if (ldap_bind($con, $user_dn, $oldPassword) === false) {
$user_dn = "uid=$user,ou=group_users,dc=immae,dc=eu";
if (ldap_bind($con, $user_dn, $oldPassword) === false) {
$message[] = "Error E101 - Current Username or Password is wrong.";
return false;
}
}
if ($newPassword != $newPasswordCnf ) {
$message[] = "Error E102 - Your New passwords do not match!";
return false;
}
if (strlen($newPassword) < 6 ) {
$message[] = "Error E103 - Your new password is too short.<br/>Your password must be at least 6 characters long.";
return false;
}
$salt = substr(str_shuffle(str_repeat('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',4)),0,4);
$encoded_newPassword = "{SSHA}" . base64_encode(pack("H*", sha1($newPassword.$salt)).$salt);
$user_search = ldap_search($con,"dc=immae,dc=eu","(uid=$user)");
$auth_entry = ldap_first_entry($con, $user_search);
$mail_addresses = ldap_get_values($con, $auth_entry, "mail");
$given_names = ldap_get_values($con, $auth_entry, "givenName");
$mail_address = $mail_addresses[0];
$first_name = $given_names[0];
/* And Finally, Change the password */
$entry = array();
$entry["userPassword"] = "$encoded_newPassword";
if (ldap_modify($con,$user_dn,$entry) === false){
$error = ldap_error($con);
$errno = ldap_errno($con);
$message[] = "E201 - Your password cannot be changed, please contact the administrator.";
$message[] = "$errno - $error";
} else {
$message_css = "yes";
mail($mail_address,"Password change notice","Dear $first_name,
Your password on https://tools.immae.eu/ldap_password.php for account $user was just changed.
If you did not make this change, please contact me.
If you were the one who changed your password, you may disregard this message.
Thanks
--
Immae / Ismaël", "From: " . getenv("CONTACT_EMAIL"));
$message[] = "The password for $user has been changed.<br/>An informational email has been sent to $mail_address.<br/>Your new password is now fully active.";
}
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Password Change Page</title>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link rel="stylesheet" href="https://assets.immae.eu/skeleton/2.0.4/skeleton.min.css" integrity="sha256-2YQRJMXD7pIAPHiXr0s+vlRWA7GYJEK0ARns7k2sbHY=" crossorigin="anonymous" />
<style type="text/css">
body { font-family: Verdana,Arial,Courier New; margin: auto; }
.msg_yes { margin: 0 auto; text-align: center; color: green; background: #D4EAD4; border: 1px solid green; border-radius: 10px; margin: 2px; }
.msg_no { margin: 0 auto; text-align: center; color: red; background: #FFF0F0; border: 1px solid red; border-radius: 10px; margin: 2px; }
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>
<body>
<div class="container">
<form action="<?php print $_SERVER['PHP_SELF']; ?>" name="passwordChange" method="post">
<h3>Password Change Page</h3>
<?php
if (isset($_POST["submitted"])) {
echo '<div class="row">';
changePassword($_POST['username'],$_POST['oldPassword'],$_POST['newPassword1'],$_POST['newPassword2']);
global $message_css;
if ($message_css == "yes") {
echo '<div class="msg_yes">';
} else {
echo '<div class="msg_no">';
$message[] = "Your password was not changed.";
}
foreach ( $message as $one ) { echo "<p>$one</p>"; }
?></div></div><?php
} ?>
<div class="row">
<div class="one-third column"><label for="username">Username</label></div>
<div class="two-thirds column"><input id="username" name="username" type="text" autocomplete="off" /></div>
</div>
<div class="row">
<div class="one-third column"><label for="oldPassword">Current password</label></div>
<div class="two-thirds column"><input id="oldPassword" name="oldPassword" type="password" /></div>
</div>
<div class="row">
<div class="one-third column"><label for="newPassword1">New password</label></div>
<div class="two-thirds column"><input id="newPassword1" name="newPassword1" type="password" /></div>
</div>
<div class="row">
<div class="one-third column"><label for="newPassword2">New password (again)</label></div>
<div class="two-thirds column"><input id="newPassword2" name="newPassword2" type="password" /></div>
</div>
<div class="row">
<div class="column">
<input name="submitted" type="submit" value="Change Password"/>
</div>
</div>
</form>
</div>
</body>
</html>
