kerberos5_auth.php

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<?php
class Kerberos5Auth implements AuthInterface
{

    private $filename;
    private $server;
    private $username;
    private $password;
    private $resource;
    private $realm;
    private $principal;

    public function __construct($auth, $extra_args)
    {

        if (!extension_loaded("kadm5")) {
            throw new KumbiaException("Debe cargar la extensi�n de php llamada kadm5");
        }

        foreach (array('server', 'username', 'principal', 'password') as $param) {
            if (isset($extra_args[$param])) {
                $this->$param = $extra_args[$param];
            } else {
                throw new KumbiaException("Debe especificar el par�metro '$param' en los par�metros");
            }
        }
    }

    public function get_identity()
    {
        if (!$this->resource) {
            new KumbiaException("La conexi�n al servidor kerberos5 es inv�lida");
        }
        $identity = array("username" => $this->username, "realm" => $this->username);
        return $identity;
    }

    public function authenticate()
    {
        $this->resource = kadm5_init_with_password($this->server, $this->realm, $this->principal, $this->password);
        if ($this->resource === false) {
            return false;
        } else {
            return true;
        }
    }

    public function get_principals()
    {
        if (!$this->resource) {
            new KumbiaException("La conexi�n al servidor kerberos5 es inv�lida");
        }
        return kadm5_get_principals($this->resource);
    }

    public function get_policies()
    {
        if (!$this->resource) {
            new KumbiaException("La conexi�n al servidor kerberos5 es inv�lida");
        }
        return kadm5_get_policies($this->resource);
    }

    public function __destruct()
    {
        if ($this->resource) {
            kadm5_destroy($this->resource);
        }
    }

    public function set_params($extra_args)
    {
        foreach (array('server', 'principal', 'username', 'password') as $param) {
            if (isset($extra_args[$param])) {
                $this->$param = $extra_args[$param];
            }
        }
    }

}