Dominique Fournier
a4b9eb0267
git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@2959 bf3deb0d-5f1a-0410-827f-c0cc1f45334c
350 lines
12 KiB
PHP
350 lines
12 KiB
PHP
<?php
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/** DomFramework
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@package domframework
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@author Dominique Fournier <dominique@fournier38.fr> */
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require_once ("domframework/form.php");
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/** Manage the configurations of the module done by administrator in a config
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file
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It is based on the module configuration defaults
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The DocType allow to define the configuration HTML page. It must contains
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@param : the name of the parameter
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@description : the textual description of the parameter
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@type : the type of the parameter (string, integer, array)
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@values : an array containing the allowed values to the parameter. Can be
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a function like timezone_identifiers_list
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@default : the default value (can be an array or a string or a number)
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@group : Group all the parameters in a group
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POC :
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$config = new config();
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$config->default = array ("param"=>"default",
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"param2"=>array (1,2,3),
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"param3"=>null);
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$var = $config->get ("param");
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*/
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class config
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{
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/** All the parameters allowed with their default value */
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public $default = array ();
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/** Use the .php to protect the information */
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public $confFile = null;
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/** Select the configuration file */
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public function selectConfFile ()
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{
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if ($this->confFile !== null)
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$this->confFile = $this->confFile;
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elseif (defined("CONFIGFILE"))
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$this->confFile = CONFIGFILE;
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elseif (file_exists ("./datas/configuration.php"))
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$this->confFile = "./datas/configuration.php";
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elseif (file_exists ("./data/configuration.php"))
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$this->confFile = "./data/configuration.php";
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else
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$this->confFile = "./data/configuration.php";
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}
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/** List all the parameters configurable in the software */
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public function params ()
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{
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$this->selectConfFile ();
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return $this->default;
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}
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/** Return the defined values */
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public function getAll ()
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{
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$this->selectConfFile ();
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$conf = array ();
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$rc = include ($this->confFile);
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if ($rc !== 1)
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throw new Exception ("Error in configuration file", 500);
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return $conf;
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}
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/** Get the value of the provided parameter recorded in .php file
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If it is not set in .php file, use the default value
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@param string $param The option name to be returned */
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public function get ($param)
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{
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$this->selectConfFile ();
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if (!array_key_exists ($param, $this->default))
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throw new Exception ("Unknown parameter '$param'", 500);
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if (!file_exists ($this->confFile))
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{
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if (@file_put_contents ($this->confFile,
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"<?php\r\n\$conf = array ();\r\n")
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=== FALSE)
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throw new Exception (sprintf (dgettext("domframework",
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"No configuration file '%s' available and it can't be created"),
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$this->confFile), 500);
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}
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elseif (! is_readable ($this->confFile))
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throw new Exception (sprintf ( dgettext("domframework",
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"The configuration file '%s' is not readable"),
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$this->confFile));
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$conf = array ();
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$rc = include ($this->confFile);
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if ($rc !== 1)
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throw new Exception ("Error in configuration file", 500);
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if (! array_key_exists ($param, $this->default))
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throw new Exception (sprintf ("Configuration parameter '%s' not defined",
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$param), 500);
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// Create a conf where all the keys are defined. If the keys are already
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// define, use them, or use the default ones
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// Don't allow keys not defined in default ones
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if (! is_array ($this->default[$param]))
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{
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if (! array_key_exists ($param, $conf))
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return $this->default[$param];
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return $conf[$param];
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}
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foreach ($this->default[$param] as $key=>$val)
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{
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if ($key === "not configured")
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{
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if (! array_key_exists ($param, $conf))
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continue;
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foreach ($conf[$param] as $k=>$v)
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{
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$conf[$param][$k] = array_replace_recursive ($val,
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$conf[$param][$k]);
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}
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continue;
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}
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if (! isset ($conf[$param][$key]))
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$conf[$param][$key] = $val;
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elseif (is_array ($val))
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$conf[$param][$key] = array_replace_recursive ($val,
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$conf[$param][$key]);
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}
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if (! array_key_exists ($param, $conf))
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return $this->default[$param];
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return $conf[$param];
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}
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/** Define a value for the parameter in the config file. Add all the default
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values if they are not defined
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@param string $param The option name
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@param mixed $value The option value
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@return TRUE if the parameter is saved or an exception */
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public function set ($param, $value)
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{
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$this->selectConfFile ();
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if (!array_key_exists ($param, $this->default))
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throw new Exception ("Unknown parameter '$param'", 500);
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if (!file_exists ($this->confFile))
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{
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if (@file_put_contents ($this->confFile,
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"<?php\r\n\$conf =array ();\r\n")
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=== FALSE)
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throw new Exception (sprintf (
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"No configuration file '%s' available and it can't be created",
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$this->confFile));
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}
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elseif (! is_readable ($this->confFile))
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throw new Exception (sprintf (
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dgettext("domframework",
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"The configuration file '%s' is not readable"),
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$this->confFile), 500);
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if (!is_writeable ($this->confFile))
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throw new Exception (sprintf (dgettext("domframework",
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"Configuration file '%s' is write protected"),
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$this->confFile), 500);
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$conf = array ();
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$rc = include ($this->confFile);
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if ($rc !== 1)
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throw new Exception (dgettext("domframework",
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"Error in configuration file"), 500);
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$newconf = array_merge ($this->default, $conf, array ($param=>$value));
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$txt = "<?php\r\n";
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$txt .= "\$conf = array(\r\n";
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$txt = $this->writePHP ($newconf, $txt, 4);
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$txt .= ");\r\n";
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if (@file_put_contents ($this->confFile, $txt, LOCK_EX) === FALSE)
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throw new Exception (sprintf (dgettext("domframework",
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"Can't save configuration file '%s'"),
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$this->confFile), 500);
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return TRUE;
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}
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/** Display the $values in PHP format to be "require" easily
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@param mixed $values Values to be recorded
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@param string $phpcode Actual value of the php code
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@param integer $indent Number of spaces in the indentation of config */
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private function writePHP ($values, $phpcode, $indent)
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{
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foreach ($values as $key=>$val)
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{
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$phpcode .= str_pad (" ", $indent);
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$phpcode .= (is_numeric ($key)) ? $key : "\"$key\"";
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$phpcode .= " => ";
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if (is_bool ($val))
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{
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if ($val === FALSE) $phpcode .= "FALSE,\r\n";
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else $phpcode .= "TRUE,\r\n";
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}
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elseif (is_null ($val))
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$phpcode .= "NULL,\r\n";
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elseif (is_int ($val) || is_float ($val))
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$phpcode .= "$val,\r\n";
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elseif (is_string ($val))
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$phpcode .= "\"$val\",\r\n";
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elseif (is_array ($val))
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{
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$phpcode .= "array (\r\n";
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$phpcode = $this->writePHP ($val, $phpcode, $indent+4);
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$phpcode .= str_pad (" ", $indent);
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$phpcode .= "),\r\n";
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}
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else
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throw new Exception (dgettext("domframework",
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"Config : missing type ").gettype ($val), 500);
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}
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return $phpcode;
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}
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/** Convert a string to the right PHP type, without using the eval function */
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private function strToType ($values)
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{
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$values = str_replace ("array (", "array(", $values);
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if (stripos ($values, "array(") !== false)
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{
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$values = substr ($values, 6, -1);
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$values = explode (",", $values);
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$new = array ();
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foreach ($values as $key=>$val)
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{
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$val = trim ($val);
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if (strpos ($val, "=>") !== false)
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{
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// Associated array
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unset ($values[$key]);
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list ($key1, $val1) = explode ("=>", $val);
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$key1 = trim ($key1);
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$val1 = trim ($val1);
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if ($val1[0] === "\"" || $val1[0] === "'")
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$val1 = substr($val1, 1, -1);
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elseif (strpos ($val1, "."))
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$val1 = floatval ($val1);
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else
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$val1 = intval ($val1);
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$new[$key1] = $val1;
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}
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else
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{
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// Unique value (string or integer or float)
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if ($val[0] === "\"" || $val[0] === "'")
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$val = substr($val, 1, -1);
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elseif (strpos ($val, "."))
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$val = floatval ($val);
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else
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$val = intval ($val);
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$new[$key] = $val;
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}
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}
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}
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else
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{
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if ($values[0] === "\"" || $values[0] === "'" )
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$new = substr ($values, 1, -1);
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elseif (strpos ($values, "."))
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$new = floatval ($values);
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else
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$new = intval ($values);
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}
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return $new;
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}
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/** Return an array containing the definitions read from the default config
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file */
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public function docComment ($modelFile)
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{
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$debug = 0;
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if (! file_exists ($modelFile))
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throw new Exception (dgettext("domframework",
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"The configuration model file is missing"), 500);
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if (! is_readable ($modelFile))
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throw new Exception (dgettext("domframework",
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"The configuration model file is not readable"),
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500);
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$filecontent = file_get_contents ($modelFile);
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$tokens = token_get_all ($filecontent);
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$foundDefault = "";
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$parenthesis = 0;
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$params = array ();
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$path = "";
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$group = dgettext("domframework", "Default parameters");
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foreach ($tokens as $token)
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{
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if (is_array ($token))
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{
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list ($id, $text) = $token;
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if ($debug) echo "ARRAY : $id, $text\n";
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if ($foundDefault === "" && $text === "->")
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$foundDefault = $text;
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if ($id === T_DOC_COMMENT)
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{
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// Look at @param, @description,@type, @values, @default
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if ($debug) echo "DOC_COMMENT : $text\n";
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// Append the not completed lines
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$text = trim (substr ($text, 3, -2));
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$text = preg_replace ("/\n\s+/", " ", $text);
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$text = preg_replace (
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"/(@(param|description|type|values|default|group|prefix))/",
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"\n\${1}", $text);
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$text = ltrim ($text);
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// Look at each parameter and save them in a data array
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$data = array ();
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foreach (explode ("\n", $text) as $line)
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{
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$tmp = explode (" ", $line);
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$key = reset ($tmp);
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$key = substr ($key, 1);
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$data[$key] = trim (implode (" ",array_slice ($tmp, 1)));
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}
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if (isset ($data["group"]))
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$group = $data["group"];
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if (! isset ($data["param"]))
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continue;
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$data["depth"] = $parenthesis;
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$data["group"] = $group;
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//if (isset ($data["values"]) && $data["values"][0] !== "\"")
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if (isset ($data["values"]))
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{
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// A function or an array or a number is provided
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if ( function_exists ($data["values"]))
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$data["values"] = call_user_func ($data["values"]);
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elseif (is_string ($data["values"]))
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$data["values"] = $this->strToType ($data["values"]);
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}
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if (isset ($data["default"]))
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$data["default"] = $this->strToType ($data["default"]);
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if (isset ($data["prefix"]))
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$data["prefix"] = $this->strToType ($data["prefix"]);
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if ($debug) var_dump ($data);
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$params[] = $data;
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}
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}
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else
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{
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if ($debug) echo "TEXT : $token\n";
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if ($foundDefault !== "" && $token === "(")
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{
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$parenthesis++;
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}
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if ($foundDefault !== "" && $token === ")")
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{
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$parenthesis--;
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if ($parenthesis === 0)
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break;
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}
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}
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}
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return $params;
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}
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}
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