original class Copyright (C) 2000, 2001 Joseph Engo * @author Ralf Becker * @version $Id$ */ /** * eGW's application configuration in a centralized location */ class config { /** * Name of the config table * */ const TABLE = 'egw_config'; /** * Reference to the global db class * * @var egw_db */ static private $db; /** * Cache for the config data shared by all instances of this class * * @var array */ static private $configs = array(); /** * app the particular config class is instanciated for * * @var string */ private $appname; /** * actual config-data of the instanciated class * * @deprecated dont use direct * @var array */ public $config_data; /** * Constructor for the old non-static use * * @param string $appname */ function __construct($appname = '') { if (!$appname) { $appname = $GLOBALS['egw_info']['flags']['currentapp']; } $this->appname = $appname; } /** * reads the whole repository for $this->appname, appname has to be set via the constructor * * You can also use the static config::read($app) method, without instanciating the class. * * @return array the whole config-array for that app */ function read_repository() { $this->config_data = self::read($this->appname); //echo __CLASS__.'::'.__METHOD__."() this->appname=$this->appname\n"; _debug_array($this->config_data); return $this->config_data; } /** * updates the whole repository for $this->appname, you have to call read_repository() before (!) */ function save_repository() { if (!is_object(self::$db)) { self::init_db(); } if (is_array($this->config_data)) { self::$db->lock(array(config::TABLE)); foreach($this->config_data as $name => $value) { $this->save_value($name,$value); } foreach(self::$configs[$this->appname] as $name => $value) { if (!isset($this->config_data[$name])) // has been deleted { self::$db->delete(config::TABLE,array('config_app'=>$this->appname,'config_name'=>$name),__LINE__,__FILE__); } } self::$db->unlock(); if ($this->appname == 'phpgwapi' && method_exists($GLOBALS['egw'],'invalidate_session_cache')) // egw object in setup is limited { $GLOBALS['egw']->invalidate_session_cache(); // in case egw_info is cached in the session (phpgwapi is in egw_info[server]) } self::$configs[$this->appname] = $this->config_data; } } /** * updates or insert a single config-value direct into the database * * Can be used static, if $app given! * * @param string $name name of the config-value * @param mixed $value content, empty or null values are not saved, but deleted * @param string $app=null app-name, defaults to $this->appname set via the constructor */ /* static */ function save_value($name,$value,$app=null) { if (!$app && !isset($this)) { throw new egw_exception_assertion_failed('$app parameter required for static call of config::save_value($name,$value,$app)!'); } //echo "

config::save_value('$name','".print_r($value,True)."','$app')

\n"; if (!$app || isset($this) && $app == $this->appname) { $app = $this->appname; $this->config_data[$name] = $value; } //echo "

config::save_value('$name','".print_r($value,True)."','$app')

\n"; if (isset(self::$configs[$app][$name]) && self::$configs[$app][$name] === $value) { return True; // no change ==> exit } if (isset(self::$configs[$app])) { self::$configs[$app][$name] = $value; } if(is_array($value)) { $value = serialize($value); } if (!is_object(self::$db)) { self::init_db(); } if (!isset($value) || $value === '') { if (isset(self::$configs[$app])) unset(self::$configs[$app][$name]); return self::$db->delete(config::TABLE,array('config_app'=>$app,'config_name'=>$name),__LINE__,__FILE__); } return self::$db->insert(config::TABLE,array('config_value'=>$value),array('config_app'=>$app,'config_name'=>$name),__LINE__,__FILE__); } /** * deletes the whole repository for $this->appname, appname has to be set via the constructor * */ function delete_repository() { if (!is_object(self::$db)) { self::init_db(); } self::$db->delete(config::TABLE,array('config_app' => $this->appname),__LINE__,__FILE__); unset(self::$configs[$this->appname]); } /** * deletes a single value from the repository, you need to call save_repository after * * @param $variable_name string name of the config */ function delete_value($variable_name) { unset($this->config_data[$variable_name]); } /** * sets a single value in the repositry, you need to call save_repository after * * @param $variable_name string name of the config * @param $variable_data mixed the content */ function value($variable_name,$variable_data) { $this->config_data[$variable_name] = $variable_data; } /** * Reads the configuration for an applications * * Does some caching to not read it twice (in the same request) * * @param string $app * @return array */ static function read($app) { $config =& self::$configs[$app]; if (!isset($config)) { if (!is_object(self::$db)) { self::init_db(); } $config = array(); foreach(self::$db->select(config::TABLE,'*',array('config_app' => $app),__LINE__,__FILE__) as $row) { $name = $row['config_name']; $value = $row['config_value']; $test = @unserialize($value); if($test === false) { // manually retrieve the string lengths of the serialized array if unserialize failed $test = @unserialize(preg_replace('!s:(\d+):"(.*?)";!se', "'s:'.mb_strlen('$2','8bit').':\"$2\";'", $value)); } $config[$name] = is_array($test) ? $test : $value; } } return $config; } /** * get customfield array of an application * * @param string $app * @param boolean $all_private_too=false should all the private fields be returned too, default no * @return array with customfields */ static function get_customfields($app,$all_private_too=false) { $config = self::read($app); $config_name = isset($config['customfields']) ? 'customfields' : 'custom_fields'; $cfs = is_array($config[$config_name]) ? $config[$config_name] : array(); if (!$all_private_too) { foreach($cfs as $name => $field) { if ($field['private'] && !self::_check_private_cf($field['private'])) { unset($cfs[$name]); } } } return $cfs; } /** * Check if user is allowed to see a certain private cf * * @param string $private comma-separated list of user- or group-id's * @return boolean true if user has access, false otherwise */ private static function _check_private_cf($private) { static $user_and_memberships; if (!$private) { return true; } if (is_null($user_and_memberships)) { $user_and_memberships = $GLOBALS['egw']->accounts->memberships($GLOBALS['egw_info']['user']['account_id'],true); $user_and_memberships[] = $GLOBALS['egw_info']['user']['account_id']; } if (!is_array($private)) $private = explode(',',$private); return (boolean) array_intersect($private,$user_and_memberships); } /** * get_content_types of using application * * @param string $app * @return array with content-types */ static function get_content_types($app) { $config = self::read($app); return is_array($config['types']) ? $config['types'] : array(); } /** * Initialise our db * * We use a reference here (no clone), as we no longer use egw_db::row() or egw_db::next_record()! * */ private static function init_db() { if (is_object($GLOBALS['egw']->db)) { config::$db = $GLOBALS['egw']->db; } else { config::$db = $GLOBALS['egw_setup']->db; } } }