PHP & LDAP geeft error

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Jochem Pluim

Jochem Pluim

02/08/2017 21:27:51
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Hallo allen,

Ik heb onderstaand script gevonden om via een webpagina een wachtwoord van de LDAP user aan te passen, echter krijg ik steeds error 53 - Server is unwilling to perform.

Ik ben geen held met LDAP dus ik kom er niet uit. Ook een zoekopdracht naar error 53 geeft tal van mogelijke problemen en oplossingen, maar de juiste heb ik nog niet gevonden.

Het stukje code is als volgt.
Code (php)
PHP script in nieuw venster Selecteer het PHP script
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<?php

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

$message = array();
$message_css = "";

function changePassword($user,$oldPassword,$newPassword,$newPasswordCnf){
    global $message;
    global $message_css;

    $server = "localhost";
    $dn = "dc=horemas,dc=local";

    error_reporting(0);
    ldap_connect($server);
    $con = ldap_connect($server);
    ldap_set_option($con, LDAP_OPT_PROTOCOL_VERSION, 3);

    // bind anon and find user by uid
    $user_search = ldap_search($con,$dn,"(|(uid=$user)(mail=$user))");
    $user_get = ldap_get_entries($con, $user_search);
    $user_entry = ldap_first_entry($con, $user_search);
    $user_dn = ldap_get_dn($con, $user_entry);
    $user_id = $user_get[0]["uid"][0];
    $user_givenName = $user_get[0]["givenName"][0];
    $user_search_arry = array( "*", "ou", "uid", "mail", "passwordRetryCount", "passwordhistory" );
    $user_search_filter = "(|(uid=$user_id)(mail=$user))";
    $user_search_opt = ldap_search($con,$user_dn,$user_search_filter,$user_search_arry);
    $user_get_opt = ldap_get_entries($con, $user_search_opt);
    $passwordRetryCount = $user_get_opt[0]["passwordRetryCount"][0];
    $passwordhistory = $user_get_opt[0]["passwordhistory"][0];

    $message[] = "Username: " . $user_id;
    $message[] = "DN: " . $user_dn;
    $message[] = "Current Pass: " . $oldPassword;
    $message[] = "New Pass: " . $newPassword;

    /* Start the testing */
    if ( $passwordRetryCount == 3 ) {
        $message[] = "Error E101 - Your Account is Locked Out!!!";
        return false;
    }
    if (ldap_bind($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;
    }
    $encoded_newPassword = "{SHA}" . base64_encode( pack( "H*", sha1( $newPassword ) ) );
    $history_arr = ldap_get_values($con,$user_dn,"passwordhistory");
    if ( $history_arr ) {
        $message[] = "Error E102 - Your new password matches one of the last 10 passwords that you used, you MUST come up

with a new password.";
        return false;
    }
    if (strlen($newPassword) < 8 ) {
        $message[] = "Error E103 - Your new password is too short.<br/>Your password must be at least 8 characters long.";
        return false;
    }
    if (!preg_match("/[0-9]/",$newPassword)) {
        $message[] = "Error E104 - Your new password must contain at least one number.";
        return false;
    }
    if (!preg_match("/[a-zA-Z]/",$newPassword)) {
        $message[] = "Error E105 - Your new password must contain at least one letter.";
        return false;
    }
    if (!preg_match("/[A-Z]/",$newPassword)) {
        $message[] = "Error E106 - Your new password must contain at least one uppercase letter.";
        return false;
    }
    if (!preg_match("/[a-z]/",$newPassword)) {
        $message[] = "Error E107 - Your new password must contain at least one lowercase letter.";
        return false;
    }
    if (!$user_get) {
        $message[] = "Error E200 - Unable to connect to server, you may not change your password at this time, sorry.";
        return false;
    }

    $auth_entry = ldap_first_entry($con, $user_search);
    $mail_addresses = ldap_get_values($con, $auth_entry, "mail");
    $given_names = ldap_get_values($con, $auth_entry, "givenName");
    $password_history = ldap_get_values($con, $auth_entry, "passwordhistory");
    $mail_address = $mail_addresses[0];
    $first_name = $given_names[0];

    /* And Finally, Change the password */
    $entry = array();
    $entry["unicodePwd"] = "$encoded_newPassword";

    if (ldap_modify($con,$user_dn,$entry) === false){
        $error = ldap_error($con);
        $errno = ldap_errno($con);
        $message[] = "E201 - Your password cannot be change, please contact the administrator.";
        $message[] = "$errno - $error";
    } else {
        $message_css = "yes";
        $message[] = "The password for $user_id has been changed.<br/>An informational email as 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>
    <style type="text/css">
        body { font-family: Verdana,Arial,Courier New; font-size: 0.7em; }
        th { text-align: right; padding: 0.8em; }
        #container { text-align: center; width: 500px; margin: 5% 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 id="container">
    <h2>Password Change Page</h2>
    <p>Your new password must be 8 characters long or longer and have at least:<br/>
        one capital letter, one lowercase letter, &amp; one number.<br/>
        You must use a new password, your current password<br/>can not be the same as your new password.</p>
    <?php
    if (isset($_POST["submitted"])) {
    changePassword($_POST['username'],$_POST['oldPassword'],$_POST['newPassword1'],$_POST['newPassword2']);
    global $message_css;
    if ($message_css == "yes") {
    ?><div class="msg_yes"><?php
        } else {
        ?><div class="msg_no"><?php
            $message[] = "Your password was not changed.";
            }
            foreach ( $message as $one ) { echo "<p>$one</p>"; }
            ?></div><?php
        } ?>
        <form action="<?php print $_SERVER['PHP_SELF']; ?>" name="passwordChange" method="post">
            <table style="width: 400px; margin: 0 auto;">
                <tr><th>Username or Email Address:</th><td><input name="username" type="text" size="20px" autocomplete="off"

/></td></tr>
                <tr><th>Current password:</th><td><input name="oldPassword" size="20px" type="password" /></td></tr>
                <tr><th>New password:</th><td><input name="newPassword1" size="20px" type="password" /></td></tr>
                <tr><th>New password (again):</th><td><input name="newPassword2" size="20px" type="password" /></td></tr>
                <tr><td colspan="2" style="text-align: center;" >
                        <input name="submitted" type="submit" value="Change Password"/>
                        <button onclick="$('frm').action='change.php';$('frm').submit();">Cancel</button>
                    </td></tr>
            </table>
        </form>
    </div>
</body>
</html>


De pagina is te vinden op https://auth.horemas.nl/change.php
 
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