153 function api_request_handler($httpd, $socket)

   154 {

   155   global $json;

   156   $httpd->header('Content-type: text/javascript');

   157   if ( !isset($_POST['request']) )

   158   {

   159     return json_die("No request specified on POST.");

   160   }

   161   $req = $json->decode($_POST['request']);

   162   if ( !isset($req['action']) )

   163   {

   164     return json_die("No action specified.");

   165   }

   166   switch($req['action'])

   167   {

   168     case 'check_login':

   169       global $use_auth, $auth_data;

   170       if ( $use_auth )

   171       {

   172         $return = array(

   173           'need_login' => true

   174         );

   175         if ( isset($req['username']) && isset($req['password']) )

   176         {

   177           $return['auth_valid'] = ( isset($auth_data[$req['username']]) && $auth_data[$req['username']] === $req['password'] );

   178         }

   179       }

   180       else

   181       {

   182         $return = array(

   183           'need_login' => false,

   184           'auth_valid' => true

   185         );

   186       }

   187       break;

   188     case 'login':

   189       global $use_auth, $auth_data;

   190       if ( $use_auth )

   191       {

   192         if ( !isset($req['username']) || !isset($req['password']) )

   193         {

   194           return json_die("Username or password not provided");

   195         }

   196         if ( $session = login($req['username'], $req['password']) )

   197         {

   198           $return = array(

   199             'need_login' => true,

   200             'login_cookie' => $session

   201           );

   202         }

   203         else

   204         {

   205           $return = array(

   206             'need_login' => true,

   207             'login_cookie' => false

   208           );

   209         }

   210       }

   211       else

   212       {

   213         $return = array(

   214           'need_login' => false,

   215           'login_cookie' => false

   216         );

   217       }

   218       break;

   219     default:

   220       return json_die("Undefined action '{$req['action']}'.");

   221       break;

   222   }

   223   echo $json->encode($return);

   224 }