mirror of
https://github.com/ConnectedHumber/Air-Quality-Web
synced 2024-11-22 06:23:01 +00:00
207 lines
6.9 KiB
PHP
207 lines
6.9 KiB
PHP
<?php
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namespace SBRL;
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use \stdClass;
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use \Yosymfony\Toml\Toml;
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use \Yosymfony\Toml\TomlBuilder;
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/**
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* Handles the loading and saving of settings from a toml file.
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* Supports loading default settings from a separate file.
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* @author Starbeamrainbowlabs
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* @version v0.5.2
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* @lastModified 22nd March 2017
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* @license https://www.mozilla.org/en-US/MPL/2.0/ Mozilla Public License 2.0
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* Changelog:
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* v0.5.2 - 15th January 2018
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* chmod auto-generated settings file to be 0600
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* v0.5.1 - 14th January 2018
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* Make auto-generated settings files valid
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* v0.5 - 9th September 2018
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* Made hasPropertyByPath() more intelligent
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* v0.4 - 23rd August 2018
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* Made getPropertyByPath() more intelligent
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* v0.3 - 5th March 2018
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* Forked to create a version for toml.
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* v0.2 - 22nd March 2017
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* Add license
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* Filled in some missing comments
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* v0.1: 28th February 2017
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* Initial release
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*/
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class TomlConfig
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{
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private $defaultSettings;
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private $settingsFilePath = "";
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/**
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* The custom settings object.
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* @var stdClass
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*/
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private $customSettings;
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/**
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* The banner to insert at the top of the custom settings file when saving it.
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* @var string
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*/
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private $customSettingsBanner;
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/**
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* Creates a new JsonConfig
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* @param string $settingsFilePath The path to the customised settings file.
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* @param string $defaultSettingsFilePath The path to the default settings file.
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*/
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public function __construct($settingsFilePath, $defaultSettingsFilePath) {
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$this->customSettingsBanner = "# -------[ Custom Settings File - Last updated " . date("Y-m-d") . " ]-------";
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$this->defaultSettings = Toml::ParseFile($defaultSettingsFilePath, true);
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$this->customSettings = new stdClass();
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if(file_exists($settingsFilePath)) {
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$this->customSettings = Toml::ParseFile($settingsFilePath, true);
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} else {
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mkdir(dirname($settingsFilePath), 0750, true);
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file_put_contents($settingsFilePath, "$this->customSettingsBanner\n");
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chmod($settingsFilePath, 0600);
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}
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}
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/**
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* Gets the value identified by the specified property, in dotted notation (e.g. `Network.Firewalling.Ports.Http`)
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* @param string $key The property, in dotted notation, to return.
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* @return mixed The value odentified by the given dotted property notation.
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*/
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public function get($key) {
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if(static::hasPropertyByPath($this->customSettings, $key)) {
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return static::getPropertyByPath($this->customSettings, $key);
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}
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return static::getPropertyByPath($this->defaultSettings, $key);
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}
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/**
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* Fetches the default value for the specified property, specified in dotted notation.
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* @param string $key The key to fetch.
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* @return mixed The default value of the property identified by the given dotted notation.
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*/
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public function getDefault($key) {
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return static::getPropertyByPath($this->defaultSettings, $key);
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}
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/**
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* Determines whether the given property has been customised or explicitly specified in the customised settings file.
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* @param string $key The property, in dotted notation, to check.
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* @return bool Whether the specified properties file has been explicitly specified in the custom settings file.
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*/
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public function hasChanged($key) {
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return static::hasPropertyByPath($this->customSettings, $key);
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}
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/**
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* Sets the property identified by the specified dotted path.
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* Does not re-save the properties back to disk!
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* @param string $key The dotted path to update.
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* @param mixed $value The value to set the property to.
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* @return self This ConfigFile instance, to aid method chaining.
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*/
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public function set($key, $value) {
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static::setPropertyByPath($this->customSettings, $key, $value);
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return $this;
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}
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public function setCustomSettingsBanner($value) {
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$this->customSettingsBanner = $value;
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return $this;
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}
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/**
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* Saves the customised settings back to the disk.
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* @return bool Whether the save was successful or not.
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*/
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public function save() {
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$output_builder = new TomlBuilder();
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$toml_builder->addComment($this->customSettingsBanner);
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$this->build($toml_builder, $this->customSettings);
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return file_put_contents($settingsFilePath, $toml_builder->getTomlString());
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}
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private function build($toml_builder, $customSettingsObject, $subobject_name = null) {
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if($subobject_name !== null)
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$toml_builder->addTable($subobject_name);
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foreach($customSettingsObject as $key => $value) {
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if(!\is_object($value))
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$toml_builder->addValue($key, $value);
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else
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$this->build($toml_builder, $value, "$subobject_name.$key");
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}
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}
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/**
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* Works out whether a given dotted path to a property exists on a given object.
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* @param stdClass $obj The object to search.
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* @param string $path The dotted path to search with. e.g. `Network.Firewall.OpenPorts`
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* @return bool Whether the given property is present in the given object.
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*/
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public static function hasPropertyByPath($obj, $path) {
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$pathParts = explode(".", $path);
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$subObj = $obj;
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foreach($pathParts as $part) {
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if(is_object($subObj) && !isset($subObj->$part))
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return false;
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else if(is_array($subObj) && !isset($subObj[$part]))
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return false;
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else if(!is_object($subObj) && !is_array($subObj))
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return false;
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if(is_object($subObj))
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$subObj = $subObj->$part;
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else // It must be an array
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$subObj = $subObj[$part];
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}
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return true;
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}
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/**
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* Returns the property identified by the given dotted path.
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* If you're not sure whether a property exists or not, use static::hasPropertyByPath() first to check.
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* @param stdClass $obj The object to fetch from.
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* @param string $path The path to extract from the given object.
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* @return mixed The property identified by the given object.
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*/
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public static function getPropertyByPath($obj, $path) {
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$pathParts = explode(".", $path);
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$subObj = $obj;
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foreach($pathParts as $part) {
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if(is_object($subObj))
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$subObj = $subObj->$part;
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else if(is_array($subObj))
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$subObj = $subObj[$part];
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else
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throw new Exception("Error: Can't find part '$part' on sub-item if it isn't an object or array");
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}
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return $subObj;
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}
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/**
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* Returns the property identified by the given dotted path.
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* If you're not sure whether a property exists or not, use static::hasPropertyByPath() first to check.
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* @param stdClass $obj The object to set the property on.
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* @param string $path The path to set on the given object.
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* @param mixed $value The value to set the given property to.
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*/
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public static function setPropertyByPath($obj, $path, $value) {
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$pathParts = explode(".", $path);
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$pathPartsCount = count($pathParts);
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$subObj = $obj;
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for($i = 0; $i < $pathPartsCount; $i++) {
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// Set the property on the last iteration
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if($i + 1 == $pathPartsCount) {
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$subObj->$part = $value;
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break;
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}
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// Create sub-objects if they dobn't exist already
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if(!isset($subObj->$part)) {
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$subObj->$part = new stdClass();
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}
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$subObj = $subObj->$part;
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}
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}
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}
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