leilukin-tumbleblog/includes/class/Config.php

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2024-06-20 14:10:42 +00:00
<?php
/**
* Class: Config
* Holds all of the configuration settings for the entire site.
*/
class Config {
# Array: $data
# Holds the configuration data as a $key => $val array.
private $data = array();
/**
* Function: __construct
* Loads the configuration file from disk.
*/
private function __construct() {
if (!$this->read() and !INSTALLING)
trigger_error(
__("Could not read the configuration file."),
E_USER_ERROR
);
fallback($this->data["sql"], array());
fallback($this->data["enabled_modules"], array());
fallback($this->data["enabled_feathers"], array());
fallback($this->data["routes"], array());
}
/**
* Function: __get
* Handles access to the configuration data.
*
* Returns:
* @mixed@
*/
public function __get($name): mixed {
if (isset($this->data[$name]))
return $this->data[$name];
trigger_error(
__("Requested configuration setting not found."),
E_USER_NOTICE
);
return null;
}
/**
* Function: __isset
* Handles access to the configuration data.
*/
public function __isset($name): bool {
return isset($this->data[$name]);
}
/**
* Function: read
* Reads the configuration file and decodes the settings.
*/
private function read(): array|false {
$security = "<?php header(\"Status: 403\"); exit(\"Access denied.\"); ?>\n";
$contents = @file_get_contents(INCLUDES_DIR.DIR."config.json.php");
if ($contents === false)
return false;
$json = json_get(str_replace($security, "", $contents), true);
if (!is_array($json))
return false;
return $this->data = $json;
}
/**
* Function: write
* Encodes the settings and writes the configuration file.
*/
private function write(): int|false {
$contents = "<?php header(\"Status: 403\"); exit(\"Access denied.\"); ?>\n";
$contents.= json_set(
$this->data,
JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES
);
return @file_put_contents(INCLUDES_DIR.DIR."config.json.php", $contents);
}
/**
* Function: set
* Adds or replaces a configuration setting with the given value.
*
* Parameters:
* $setting - The setting name.
* $value - The value to set.
* $fallback - Add the setting only if it doesn't exist.
*/
public function set($setting, $value, $fallback = false): int|bool {
if (isset($this->data[$setting]) and $fallback)
return true;
$this->data[$setting] = $value;
if (class_exists("Trigger"))
Trigger::current()->call("change_setting", $setting, $value);
return $this->write();
}
/**
* Function: remove
* Removes a configuration setting.
*
* Parameters:
* $setting - The setting name.
*/
public function remove($setting): int|false {
unset($this->data[$setting]);
return $this->write();
}
/**
* Function: current
* Returns a singleton reference to the current configuration.
*/
public static function & current(): self {
static $instance = null;
$instance = (empty($instance)) ? new self() : $instance ;
return $instance;
}
}