/** * Returns a reference to phpOpenTracker's session container. * * The first call to this method during a request triggers, if * $parameters['init'] is not set to false, the generation of * the session container array. * * @param optional array $parameters * @return array * @access public * @static */ function &singleton($parameters = array()) { static $isInitialized; $init = isset($parameters['init']) ? $parameters['init'] : false; $initAPI = isset($parameters['initAPI']) ? $parameters['initAPI'] : false; $initNoSetup = isset($parameters['initNoSetup']) ? $parameters['initNoSetup'] : false; $isInitialized = isset($isInitialized) ? $isInitialized : false; if ($initAPI) { $init = true; $isInitialized = false; } else { if ($initNoSetup) { $init = true; } } if ($isInitialized && !$init) { return $_SESSION['_phpOpenTracker_Container']; } if ($init && !$initAPI) { session_register('_phpOpenTracker_Container'); $container =& $_SESSION['_phpOpenTracker_Container']; } if ($init && !$isInitialized && !$initNoSetup) { $config =& phpOpenTracker_Config::singleton(true); $db =& phpOpenTracker_DB::singleton(); $parameters['client_id'] = isset($parameters['client_id']) ? $parameters['client_id'] : 1; $container['first_request'] = isset($container['first_request']) ? false : true; if ($container['first_request']) { $client_id_switched = false; } else { if ($container['client_id'] != $parameters['client_id']) { $container['first_request'] = true; $client_id_switched = true; } } $container['client_id'] = $parameters['client_id']; if ($container['first_request']) { if (function_exists('posix_getpid')) { $container['accesslog_id'] = crc32(microtime() . posix_getpid()); } else { $container['accesslog_id'] = crc32(microtime() . session_id()); } if (!$client_id_switched) { if (!isset($parameters['host']) && !isset($parameters['ip_address'])) { if (isset($_SERVER['REMOTE_ADDR'])) { $container['ip_address'] = $_SERVER['REMOTE_ADDR']; if (isset($_SERVER['REMOTE_HOST'])) { $container['host_orig'] = $_SERVER['REMOTE_HOST']; } else { if ($config['resolve_hostname']) { $container['host_orig'] = gethostbyaddr($container['ip_address']); } else { $container['host_orig'] = $container['ip_address']; } } } else { $container['host_orig'] = ''; $container['ip_address'] = ''; } } else { $container['host_orig'] = isset($parameters['host']) ? $parameters['host'] : ''; $container['ip_address'] = isset($parameters['ip_address']) ? $parameters['ip_address'] : ''; } $container['host'] = $container['host_orig']; if ($config['group_hostnames']) { $container['host'] = phpOpenTracker_Parser::hostname($container['host']); } if (isset($parameters['user_agent'])) { $container['user_agent_orig'] = $parameters['user_agent']; } else { $container['user_agent_orig'] = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : ''; } if ($config['group_user_agents']) { $container = array_merge($container, phpOpenTracker_Parser::userAgent($container['user_agent_orig'])); } else { $container['operating_system'] = 'Not identified'; $container['user_agent'] = $container['user_agent_orig']; } $container['host_id'] = $db->storeIntoDataTable($config['hostnames_table'], $container['host']); $container['operating_system_id'] = $db->storeIntoDataTable($config['operating_systems_table'], $container['operating_system']); $container['user_agent_id'] = $db->storeIntoDataTable($config['user_agents_table'], $container['user_agent']); } if (isset($parameters['referer'])) { $container['referer_orig'] = $parameters['referer']; } else { $container['referer_orig'] = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : ''; } $container['referer_orig'] = urldecode($container['referer_orig']); if ($config['clean_referer_string']) { $container['referer'] = preg_replace('/(\\?.*)/', '', $container['referer_orig']); } else { $container['referer'] = $container['referer_orig']; } if (!empty($container['referer'])) { $container['referer'] = str_replace('http://', '', $container['referer']); } $container['referer_id'] = $db->storeIntoDataTable($config['referers_table'], $container['referer']); } else { $container['last_document'] = $container['document']; } $container['document_url'] = isset($parameters['document_url']) ? $parameters['document_url'] : urldecode($_SERVER[$config['document_env_var']]); if ($config['clean_query_string']) { $container['document_url'] = preg_replace('/(\\?.*)/', '', $container['document_url']); } else { $filters = array_merge($config['get_parameter_filter'], array(session_name())); foreach ($filters as $filter) { $container['document_url'] = preg_replace('#\\?' . $filter . '=.*$|&' . $filter . '=.*$|' . $filter . '=.*&#msiU', '', $container['document_url']); } } $container['document'] = isset($parameters['document']) ? $parameters['document'] : $container['document_url']; $container['document_id'] = $db->storeIntoDataTable($config['documents_table'], $container['document'], $container['document_url']); $container['timestamp'] = isset($parameters['timestamp']) ? $parameters['timestamp'] : time(); $isInitialized = true; } return $container; }