mailcow/data/Dockerfiles/ejabberd/mailcowCommandExecutor.php

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2021-02-11 22:24:49 +08:00
<?php namespace LeeSherwood\Ejabberd\CommandExecutors;
/**
* Dummy command executor for ejabberd
*
* This class implements the command executor interface and just returns some sane boolean values.
* You may want to use this class to test your ejabberd external authentication module is set up correctly
* before you start creating your custom code.
*
* @package LeeSherwood\Ejabberd
* @author Lee Sherwood
*/
use \PDO;
class mailcowCommandExecutor implements CommandExecutorInterface {
/**
* Authenticate a user (login)
*
* @param string $username
* @param string $servername
* @param string $password
*
* @return bool
*/
public static function verify_salted_hash($hash, $password, $algo, $salt_length) {
// Decode hash
$dhash = base64_decode($hash);
// Get first n bytes of binary which equals a SSHA hash
$ohash = substr($dhash, 0, $salt_length);
// Remove SSHA hash from decoded hash to get original salt string
$osalt = str_replace($ohash, '', $dhash);
// Check single salted SSHA hash against extracted hash
if (hash_equals(hash($algo, $password . $osalt, true), $ohash)) {
return true;
}
return false;
}
public static function verify_hash($hash, $password) {
if (preg_match('/^{(.+)}(.+)/i', $hash, $hash_array)) {
$scheme = strtoupper($hash_array[1]);
$hash = $hash_array[2];
switch ($scheme) {
case "ARGON2I":
case "ARGON2ID":
case "BLF-CRYPT":
case "CRYPT":
case "DES-CRYPT":
case "MD5-CRYPT":
case "MD5":
case "SHA256-CRYPT":
case "SHA512-CRYPT":
return password_verify($password, $hash);
case "CLEAR":
case "CLEARTEXT":
case "PLAIN":
return $password == $hash;
case "LDAP-MD5":
$hash = base64_decode($hash);
return hash_equals(hash('md5', $password, true), $hash);
case "PBKDF2":
$components = explode('$', $hash);
$salt = $components[2];
$rounds = $components[3];
$hash = $components[4];
return hash_equals(hash_pbkdf2('sha1', $password, $salt, $rounds), $hash);
case "PLAIN-MD4":
return hash_equals(hash('md4', $password), $hash);
case "PLAIN-MD5":
return md5($password) == $hash;
case "PLAIN-TRUNC":
$components = explode('-', $hash);
if (count($components) > 1) {
$trunc_len = $components[0];
$trunc_password = $components[1];
return substr($password, 0, $trunc_len) == $trunc_password;
} else {
return $password == $hash;
}
case "SHA":
case "SHA1":
case "SHA256":
case "SHA512":
// SHA is an alias for SHA1
$scheme = $scheme == "SHA" ? "sha1" : strtolower($scheme);
$hash = base64_decode($hash);
return hash_equals(hash($scheme, $password, true), $hash);
case "SMD5":
return verify_salted_hash($hash, $password, 'md5', 16);
case "SSHA":
return verify_salted_hash($hash, $password, 'sha1', 20);
case "SSHA256":
return verify_salted_hash($hash, $password, 'sha256', 32);
case "SSHA512":
return verify_salted_hash($hash, $password, 'sha512', 64);
default:
return false;
}
}
return false;
}
public function authenticate($username, $servername, $password)
{
$database_type = 'mysql';
$database_sock = '/var/run/mysqld/mysqld.sock';
$database_user = '__DBUSER__';
$database_pass = '__DBPASS__';
$database_name = '__DBNAME__';
$dsn = $database_type . ":unix_socket=" . $database_sock . ";dbname=" . $database_name;
$opt = [
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
PDO::ATTR_EMULATE_PREPARES => false
];
try {
$pdo = new PDO($dsn, $database_user, $database_pass, $opt);
}
catch (PDOException $e) {
return false;
}
if (!filter_var($username, FILTER_VALIDATE_EMAIL) && !ctype_alnum(str_replace(array('_', '.', '-'), '', $username))) {
return false;
}
$username = strtolower(trim($username));
$stmt = $pdo->prepare("SELECT `password` FROM `mailbox`
INNER JOIN domain on mailbox.domain = domain.domain
WHERE `kind` NOT REGEXP 'location|thing|group'
AND `mailbox`.`active`= '1'
AND `domain`.`active`= '1'
AND `domain`.`xmpp` = '1'
AND JSON_UNQUOTE(JSON_VALUE(`mailbox`.`attributes`, '$.xmpp_access')) = '1'
AND CONCAT(`domain`.`xmpp_prefix`, '.', `domain`.`domain`) = :servername
AND `username` = CONCAT(:local_part, '@', `domain`.`domain`)");
$stmt->execute(array(':local_part' => $username, ':servername' => $servername));
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
foreach ($rows as $row) {
if (self::verify_hash($row['password'], $password) !== false) {
return true;
}
}
return false;
}
/**
* Check if a user exists
*
* @param string $username
* @param string $servername
*
* @return bool
*/
public function userExists($username, $servername)
{
return true;
}
/**
* Set a password for a user
*
* @param string $username
* @param string $servername
* @param string $password
*
* @return bool
*/
public function setPassword($username, $servername, $password)
{
return false;
}
/**
* Register a user
*
* @param string $username
* @param string $servername
* @param string $password
*
* @return bool
*/
public function register($username, $servername, $password)
{
return false;
}
/**
* Delete a user
*
* @param string $username
* @param string $servername
*
* @return bool
*/
public function removeUser($username, $servername)
{
return false;
}
/**
* Delete a user with password validation
*
* @param string $username
* @param string $servername
* @param string $password
*
* @return bool
*/
public function removeUserWithPassword($username, $servername, $password)
{
return false;
}
}