<?php

class GamersAllianceRPC {
  // Not actual details
  protected $api_id  = "1@gamersalliance.net.au";
  protected $api_key = "c2543fff3bfa6f144c2f06a7de6cd10c0b650cae"

  // XMLRPC Connection
  protected $connection = null;

  // Session ID returned by the server
  protected $sessionid = null;

  public function __construct() {
    $this->connection = new xmlrpc_client("/RPC2", "gamersalliance.net.au", 443, 'https');

    $response = $this->connection->send(new xmlrpcmsg('login', array(php_xmlrpc_encode($api_id), php_xmlrpc_encode($api_key)));

    if(!$response->faultCode()) {
      $this->sessionid = $response->value()->scalarVal();
    } else {
      throw new Exception("XMLRPC Error: " . $response->faultString());
    }
  }

  // Checks to see if the user $username identified by $password exists. Returns Array
  // On Success: array(True, array(string $userid, string $username, string $firstname, string $lastname))
  // On Failure: array(False, array(string $reason))
  // Throws Exception on XMLRPC failure
  public function checkAuth($username, $password) {
    $response = $this->connection->send(new xmlrpcmsg('checkAuth', array(php_xmlrpc_encode($sessionid), php_xmlrpc_encode($username), php_xmlrpc_encode($password)));

    if(!$response->faultCode()) {
      return $this->nativeise($response->value());
    } else {
      throw new Exception("XMLRPC Error: " . $response->faultString());
    }
  }

  // Converts and XMLRPC response to a native type
  public function nativeise($xmlrpcobj) {
    if($xmlrpcobj->kindOf() == "scalar") {
      return $xmlrpcobj->scalarVal();
    } else if($xmlrpcobj->kindOf() == "array") {
      $out = array();
      for ($i = 0; $i < $xmlrpcobj->arraySize(); $i++) {
        $v = $xmlrpcobj->arrayMem($i);
        $out[] = $this->nativeise($v);
      }
      return $out;
    } else if($xmlrpcobj->kindOf() == "struct") {
      $out = array();
      while (list($key, $v) = $xmlrpcobj->structEach()) {
        $out[$key] = $this->nativeise($v);
      }
      return $out;
    } else {
      return $xmlrpcobj;
    }
  }
}