mirror of
https://github.com/EGroupware/egroupware.git
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357 lines
11 KiB
PHP
Executable File
357 lines
11 KiB
PHP
Executable File
<?php
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/**
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* eGW's application configuration in a centralized location
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*
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* @link www.egroupware.org
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* @author Joseph Engo <jengo@phpgroupware.org> original class Copyright (C) 2000, 2001 Joseph Engo
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* @author Ralf Becker <ralfbecker@outdoor-training.de>
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* @version $Id$
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*/
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/**
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* eGW's application configuration in a centralized location
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*
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* New config values are stored JSON serialized now instead of PHP serialized before 14.1.
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*/
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class config
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{
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/**
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* Name of the config table
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*
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*/
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const TABLE = 'egw_config';
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/**
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* Reference to the global db class
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*
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* @var egw_db
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*/
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static private $db;
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/**
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* Cache for the config data shared by all instances of this class
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*
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* @var array
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*/
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static private $configs;
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/**
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* app the particular config class is instanciated for
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*
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* @var string
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*/
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private $appname;
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/**
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* actual config-data of the instanciated class
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*
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* @deprecated dont use direct
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* @var array
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*/
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public $config_data;
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/**
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* Constructor for the old non-static use
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*
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* @param string $appname
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*/
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function __construct($appname = '')
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{
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if (!$appname)
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{
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$appname = $GLOBALS['egw_info']['flags']['currentapp'];
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}
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$this->appname = $appname;
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}
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/**
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* reads the whole repository for $this->appname, appname has to be set via the constructor
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*
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* You can also use the static config::read($app) method, without instanciating the class.
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*
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* @return array the whole config-array for that app
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*/
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function read_repository()
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{
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$this->config_data = self::read($this->appname);
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//echo __CLASS__.'::'.__METHOD__."() this->appname=$this->appname\n"; _debug_array($this->config_data);
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return $this->config_data;
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}
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/**
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* updates the whole repository for $this->appname, you have to call read_repository() before (!)
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*/
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function save_repository()
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{
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if (is_array($this->config_data))
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{
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self::$db->lock(array(config::TABLE));
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foreach($this->config_data as $name => $value)
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{
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self::save_value($name, $value, $this->appname, false);
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}
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foreach(self::$configs[$this->appname] as $name => $value)
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{
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if (!isset($this->config_data[$name])) // has been deleted
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{
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self::save_value($name, null, $this->appname, false);
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//self::$db->delete(config::TABLE,array('config_app'=>$this->appname,'config_name'=>$name),__LINE__,__FILE__);
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}
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}
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self::$db->unlock();
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if ($this->appname == 'phpgwapi' && method_exists($GLOBALS['egw'],'invalidate_session_cache')) // egw object in setup is limited
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{
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$GLOBALS['egw']->invalidate_session_cache(); // in case egw_info is cached in the session (phpgwapi is in egw_info[server])
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}
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self::$configs[$this->appname] = $this->config_data;
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egw_cache::setInstance(__CLASS__, 'configs', self::$configs);
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}
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}
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/**
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* updates or insert a single config-value direct into the database
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*
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* Can (under recent PHP version) only be used static!
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* Use $this->value() or $this->delete_value() together with $this->save_repository() for non-static usage.
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*
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* @param string $name name of the config-value
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* @param mixed $value content, empty or null values are not saved, but deleted
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* @param string $app app-name (depreacted to use default of $this->appname set via the constructor!)
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* @param boolean $update_cache=true update instance cache and for phpgwapi invalidate session-cache
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* @throws egw_exception_wrong_parameter if no $app parameter given for static call
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* @return boolean|int true if no change, else number of affected rows
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*/
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static function save_value($name, $value, $app, $update_cache=true)
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{
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if (!$app && (!isset($this) || !is_a($this,__CLASS__)))
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{
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throw new egw_exception_wrong_parameter('$app parameter required for static call of config::save_value($name,$value,$app)!');
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}
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//echo "<p>config::save_value('$name','".print_r($value,True)."','$app')</p>\n";
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if (!$app || isset($this) && is_a($this,__CLASS__) && $app == $this->appname)
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{
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$app = $this->appname;
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$this->config_data[$name] = $value;
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}
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if (!isset(self::$configs))
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{
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self::init_static();
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}
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//echo "<p>config::save_value('$name','".print_r($value,True)."','$app')</p>\n";
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if (isset(self::$configs[$app][$name]) && self::$configs[$app][$name] === $value)
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{
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return True; // no change ==> exit
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}
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if (!isset($value) || $value === '')
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{
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if (isset(self::$configs[$app])) unset(self::$configs[$app][$name]);
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self::$db->delete(config::TABLE,array('config_app'=>$app,'config_name'=>$name),__LINE__,__FILE__);
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}
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else
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{
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self::$configs[$app][$name] = $value;
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if(is_array($value)) $value = json_encode($value);
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self::$db->insert(config::TABLE,array('config_value'=>$value),array('config_app'=>$app,'config_name'=>$name),__LINE__,__FILE__);
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}
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if ($update_cache)
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{
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if ($app == 'phpgwapi' && method_exists($GLOBALS['egw'],'invalidate_session_cache')) // egw object in setup is limited
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{
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$GLOBALS['egw']->invalidate_session_cache(); // in case egw_info is cached in the session (phpgwapi is in egw_info[server])
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}
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egw_cache::setInstance(__CLASS__, 'configs', self::$configs);
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}
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return self::$db->affected_rows();
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}
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/**
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* deletes the whole repository for $this->appname, appname has to be set via the constructor
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*
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*/
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function delete_repository()
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{
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if (!isset(self::$configs))
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{
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self::init_static();
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}
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self::$db->delete(config::TABLE,array('config_app' => $this->appname),__LINE__,__FILE__);
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unset(self::$configs[$this->appname]);
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egw_cache::setInstance(__CLASS__, 'configs', self::$configs);
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}
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/**
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* deletes a single value from the repository, you need to call save_repository after
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*
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* @param $variable_name string name of the config
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*/
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function delete_value($variable_name)
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{
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unset($this->config_data[$variable_name]);
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}
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/**
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* sets a single value in the repositry, you need to call save_repository after
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*
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* @param $variable_name string name of the config
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* @param $variable_data mixed the content
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*/
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function value($variable_name,$variable_data)
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{
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$this->config_data[$variable_name] = $variable_data;
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}
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/**
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* Reads the configuration for an applications
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*
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* Does some caching to not read it twice (in the same request)
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*
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* @param string $app
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* @return array
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*/
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static function read($app)
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{
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if (!isset(self::$configs))
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{
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self::init_static();
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}
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return self::$configs[$app];
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}
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/**
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* get customfield array of an application
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*
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* @param string $app
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* @param boolean $all_private_too=false should all the private fields be returned too, default no
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* @param string $only_type2=null if given only return fields of type2 == $only_type2
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* @deprecated use egw_customfields::get()
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* @return array with customfields
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*/
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static function get_customfields($app, $all_private_too=false, $only_type2=null)
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{
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//error_log(__METHOD__."('$app', $all_private_too, $only_type2) deprecated, use egw_customfields::get() in ". function_backtrace());
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return egw_customfields::get($app, $all_private_too, $only_type2);
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}
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/**
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* get_content_types of using application
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*
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* @param string $app
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* @return array with content-types
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*/
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static function get_content_types($app)
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{
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$config = self::read($app);
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return is_array($config['types']) ? $config['types'] : array();
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}
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/**
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* Return configuration for all apps, save to be transmitted to browser
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*
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* You can add further values to the white-list, but keep in mind they are publicly visible (eg. via anon user of sitemgr)!!!
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*
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* @return array
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*/
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static public function clientConfigs()
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{
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static $white_list = array(
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'all' => array('customfields', 'types'),
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'phpgwapi' => array('webserver_url','server_timezone','enforce_ssl','system_charset',
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'checkfornewversion','checkappversions','email_address_format', // admin >> site config
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'site_title','login_logo_file','login_logo_url','login_logo_title','favicon_file',
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'markuntranslated','link_list_thumbnail','enabled_spellcheck','debug_minify',
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'call_link','call_popup', // addressbook
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'hide_birthdays','calview_no_consolidate'), // calendar
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'projectmanager' => array('hours_per_workday', 'duration_units'),
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'manual' => array('manual_remote_egw_url'),
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'infolog' => array('status'),
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'timesheet' => array('status_labels'),
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);
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if (!isset(self::$configs))
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{
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self::init_static();
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}
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$client_config = array();
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foreach(self::$configs as $app => $config)
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{
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foreach($config as $name => $value)
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{
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if (strpos($name, 'pass') !== false) continue;
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if (in_array($name, $white_list['all']) || isset($white_list[$app]) && in_array($name, $white_list[$app]))
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{
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$client_config[$app][$name] = $value;
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}
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}
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// currently not used, therefore no need to add it
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//$client_config[$app]['customfields'] = egw_customfields::get($app);
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}
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// some things need on client-side which are not direct configs
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$client_config['phpgwapi']['max_lang_time'] = translation::max_lang_time();
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return $client_config;
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}
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/**
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* Unserialize data from either json_encode or PHP serialize
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*
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* @param string $str serialized prefs
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* @return array
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*/
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protected static function unserialize($str)
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{
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// handling of new json-encoded arrays
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if ($str[0] == '{' || $str[0] == '[')
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{
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return json_decode($str, true);
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}
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// handling of not serialized strings
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if ($str[0] != 'a' || $str[1] != ':')
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{
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return $str;
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}
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// handling of old PHP serialized config values
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$data = php_safe_unserialize($str);
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if($data === false)
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{
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// manually retrieve the string lengths of the serialized array if unserialize failed (iso / utf-8 conversation)
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$data = php_safe_unserialize(preg_replace_callback('!s:(\d+):"(.*?)";!s', function($matches)
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{
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return 's:'.mb_strlen($matches[2],'8bit').':"'.$matches[2].'";';
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}, $str));
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}
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// returning original string, if unserialize failed, eg. for "a:hello"
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return $data === false ? $str : $data;
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}
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/**
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* Initialise class: reference to db and self::$configs cache
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*/
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public static function init_static()
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{
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// we use a reference here (no clone), as we no longer use egw_db::row() or egw_db::next_record()!
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if (isset($GLOBALS['egw_setup']) && is_a($GLOBALS['egw_setup']->db, 'egw_db'))
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{
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self::$db = $GLOBALS['egw_setup']->db;
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}
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else
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{
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self::$db = $GLOBALS['egw']->db;
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}
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// if item is not cached or cache is not looking alright --> query config from database
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if (!(self::$configs = egw_cache::getInstance(__CLASS__, 'configs')) || !is_array(self::$configs['phpgwapi']))
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{
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self::$configs = array();
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foreach(self::$db->select(config::TABLE,'*',false,__LINE__,__FILE__) as $row)
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{
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self::$configs[$row['config_app']][$row['config_name']] = self::unserialize($row['config_value']);
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//error_log(__METHOD__."() configs[$row[config_app]][$row[config_name]]=".array2string(self::$configs[$row['config_app']][$row['config_name']]));
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}
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egw_cache::setInstance(__CLASS__, 'configs', self::$configs);
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}
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}
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}
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