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<?php
declare(strict_types=1);
namespace SimpleSAML\Module\exampleauth\Auth\Source;
use SimpleSAML\Error;
use SimpleSAML\Utils;
/**
* Example authentication source - username & password.
*
* This class is an example authentication source which stores all username/passwords in an array,
* and authenticates users against this array.
*
* @author Olav Morken, UNINETT AS.
* @package SimpleSAMLphp
*/
class UserPass extends \SimpleSAML\Module\core\Auth\UserPassBase
{
/**
* Our users, stored in an associative array. The key of the array is "<username>:<password>",
* while the value of each element is a new array with the attributes for each user.
*
* @var array
*/
private $users;
/**
* Constructor for this authentication source.
*
* @param array $info Information about this authentication source.
* @param array $config Configuration.
*/
public function __construct($info, $config)
{
assert(is_array($info));
assert(is_array($config));
// Call the parent constructor first, as required by the interface
parent::__construct($info, $config);
$this->users = [];
// Validate and parse our configuration
foreach ($config as $userpass => $attributes) {
if (!is_string($userpass)) {
throw new \Exception(
'Invalid <username>:<password> for authentication source ' . $this->authId . ': ' . $userpass
);
}
$userpass = explode(':', $userpass, 2);
if (count($userpass) !== 2) {
throw new \Exception(
'Invalid <username>:<password> for authentication source ' . $this->authId . ': ' . $userpass[0]
);
}
$username = $userpass[0];
$password = $userpass[1];
try {
$attributes = Utils\Attributes::normalizeAttributesArray($attributes);
} catch (\Exception $e) {
throw new \Exception('Invalid attributes for user ' . $username .
' in authentication source ' . $this->authId . ': ' . $e->getMessage());
}
$this->users[$username . ':' . $password] = $attributes;
}
}
/**
* Attempt to log in using the given username and password.
*
* On a successful login, this function should return the users attributes. On failure,
* it should throw an exception. If the error was caused by the user entering the wrong
* username or password, a \SimpleSAML\Error\Error('WRONGUSERPASS') should be thrown.
*
* Note that both the username and the password are UTF-8 encoded.
*
* @param string $username The username the user wrote.
* @param string $password The password the user wrote.
* @return array Associative array with the users attributes.
*/
protected function login($username, $password)
{
assert(is_string($username));
assert(is_string($password));
$userpass = $username . ':' . $password;
if (!array_key_exists($userpass, $this->users)) {
throw new Error\Error('WRONGUSERPASS');
}
return $this->users[$userpass];
}
}
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