<?php
/** User authentication against SYMPA server
    Sympa is a mailling list server. It can handle authentication with 
    - a username (a email adress)
    - a password
    - a list to check if the user is recorded in 
    - a Sympa SOAP server WSDL
    - the part of list which should be test : subscriber, owner, editor
    It use the SOAP protocol. So the PHP SOAP library is needed and the network
    must be open between the Web server and the Sympa server. */
/* POC : 
$auth = new authsympa ();
$auth->wsdl = "https://lists.domain.tld/sympa/wsdl";
$auth->list = "listtest@lists.domain.tld";
$auth->connect ();
var_dump ($auth->authentication ("user@domain.tld", "Pa$$word!"));
*/
require_once ("auth.php");
class authsympa extends auth
{
  public $wsdl = null;
  public $list = null;
  public $function = "subscriber"; // can be subscriber, owner, editor

  private $client = null;
  private $authkey = null;
  private $email = null;

  public function __construct ()
  {
    if (! class_exists ("SoapClient"))
      throw new Exception (_("No SOAP PHP library available"), 500);
  }

  public function connect ()
  {
    if ($this->wsdl === null)
      throw new Exception (_("No WSDL provided to Sympa auth"), 401);
    $this->client = new SoapClient($this->wsdl);
  }

  public function authentication ($email, $password)
  {
    if ($this->client === null)
      throw new Exception (_("The SOAP connection is not opened"), 401);
    if ($this->list === null)
      throw new Exception (_("The list to check is not defined"), 401);
    $this->authkey = $this->client->login ($email, $password);
    if ($this->authkey === null)
      throw new Exception (
                       _("Can't connect with provided email/password to sympa"),
                       401);
    $this->email = $email;
    $rc = $this->client->authenticateAndRun ($email, $this->authkey,
                      'amI', array ($this->list, $this->function, $email));
    if ($rc === null)
      return FALSE;
    return $rc;
  }

  public function getdetails ()
  {
      throw new Exception (_("The details can't be provided by Sympa"), 404);
  }

  public function changepassword ($oldpassword, $newpassword)
  {
    throw new Exception (_("The password can't be change for SYMPA users"),
                         405);
  }
}