UserPass.php

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<?php

class sspmod_exampleauth_Auth_Source_UserPass extends sspmod_core_Auth_UserPassBase {


        private $users;


        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 = array();

                // 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 {
                                $attributes = SimpleSAML\Utils\Attributes::normalizeAttributesArray($attributes);
                        } catch(Exception $e) {
                                throw new Exception('Invalid attributes for user ' . $username .
                                        ' in authentication source ' . $this->authId . ': ' .
                                        $e->getMessage());
                        }

                        $this->users[$username . ':' . $password] = $attributes;
                }
        }


        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 SimpleSAML_Error_Error('WRONGUSERPASS');
                }

                return $this->users[$userpass];
        }

}