winter/modules/cms/classes/CmsCompoundObject.php
Ben Thomson a59d3b83eb Code quality clean up (#4449)
Credit to @bennothommo
2019-07-18 08:50:37 -06:00

492 lines
14 KiB
PHP

<?php namespace Cms\Classes;
use Ini;
use Lang;
use Cache;
use Config;
use Cms\Twig\Loader as TwigLoader;
use Cms\Twig\Extension as CmsTwigExtension;
use Cms\Components\ViewBag;
use System\Twig\Extension as SystemTwigExtension;
use October\Rain\Halcyon\Processors\SectionParser;
use Twig\Source as TwigSource;
use Twig\Environment as TwigEnvironment;
use ApplicationException;
/**
* This is a base class for CMS objects that have multiple sections - pages, partials and layouts.
* The class implements functionality for the compound object file parsing. It also provides a way
* to access parameters defined in the INI settings section as the object properties.
*
* @package october\cms
* @author Alexey Bobkov, Samuel Georges
*/
class CmsCompoundObject extends CmsObject
{
/**
* @var array Initialized components defined in the template file.
*/
public $components = [];
/**
* @var array INI settings defined in the template file. Not to be confused
* with the attribute called settings. In this array, components are bumped
* to their own array inside the 'components' key.
*/
public $settings = [
'components' => []
];
/**
* @var array Contains the view bag properties.
* This property is used by the page editor internally.
*/
public $viewBag = [];
/**
* @var array The attributes that are mass assignable.
*/
protected $fillable = [
'markup',
'settings',
'code'
];
/**
* The methods that should be returned from the collection of all objects.
*
* @var array
*/
protected $passthru = [
'lists',
'where',
'sortBy',
'whereComponent',
'withComponent'
];
/**
* @var bool Model supports code and settings sections.
*/
protected $isCompoundObject = true;
/**
* @var array|null Cache for component properties.
*/
protected static $objectComponentPropertyMap;
/**
* @var mixed Cache store for the getViewBag method.
*/
protected $viewBagCache = false;
/**
* Triggered after the object is loaded.
* @return void
*/
public function afterFetch()
{
$this->parseComponentSettings();
$this->validateSettings();
$this->parseSettings();
}
/**
* Triggered when the model is saved.
* @return void
*/
public function beforeSave()
{
$this->checkSafeMode();
}
/**
* Create a new Collection instance.
*
* @param array $models
* @return \October\Rain\Halcyon\Collection
*/
public function newCollection(array $models = [])
{
return new CmsObjectCollection($models);
}
/**
* If the model is loaded with an invalid INI section, the invalid content will be
* passed as a special attribute. Look for it, then locate the failure reason.
* @return void
*/
protected function validateSettings()
{
if (isset($this->attributes[SectionParser::ERROR_INI])) {
CmsException::mask($this, 200);
Ini::parse($this->attributes[SectionParser::ERROR_INI]);
CmsException::unmask();
}
}
/**
* Parses the settings array.
* Child classes can override this method in order to update the content
* of the $settings property after the object is loaded from a file.
* @return void
*/
protected function parseSettings()
{
$this->fillViewBagArray();
}
/**
* This method checks if safe mode is enabled by config, and the code
* attribute is modified and populated. If so an exception is thrown.
* @return void
*/
protected function checkSafeMode()
{
$safeMode = Config::get('cms.enableSafeMode', null);
if ($safeMode === null) {
$safeMode = !Config::get('app.debug', false);
}
if ($safeMode && $this->isDirty('code') && strlen(trim($this->code))) {
throw new ApplicationException(Lang::get('cms::lang.cms_object.safe_mode_enabled'));
}
}
//
// Components
//
/**
* Runs components defined in the settings
* Process halts if a component returns a value
* @return void
*/
public function runComponents()
{
foreach ($this->components as $component) {
if ($event = $component->fireEvent('component.beforeRun', [], true)) {
return $event;
}
if ($result = $component->onRun()) {
return $result;
}
if ($event = $component->fireEvent('component.run', [], true)) {
return $event;
}
}
}
/**
* Parse component sections.
* Replace the multiple component sections with a single "components"
* element in the $settings property.
* @return void
*/
protected function parseComponentSettings()
{
$this->settings = $this->getSettingsAttribute();
$manager = ComponentManager::instance();
$components = [];
foreach ($this->settings as $setting => $value) {
if (!is_array($value)) {
continue;
}
$settingParts = explode(' ', $setting);
$settingName = $settingParts[0];
$components[$setting] = $value;
unset($this->settings[$setting]);
}
$this->settings['components'] = $components;
}
/**
* Returns a component by its name.
* This method is used only in the back-end and for internal system needs when
* the standard way to access components is not an option.
* @param string $componentName Specifies the component name.
* @return \Cms\Classes\ComponentBase Returns the component instance or null.
*/
public function getComponent($componentName)
{
if (!($componentSection = $this->hasComponent($componentName))) {
return null;
}
return ComponentManager::instance()->makeComponent(
$componentName,
null,
$this->settings['components'][$componentSection]
);
}
/**
* Checks if the object has a component with the specified name.
* @param string $componentName Specifies the component name.
* @return mixed Return false or the full component name used on the page (it could include the alias).
*/
public function hasComponent($componentName)
{
$componentManager = ComponentManager::instance();
$componentName = $componentManager->resolve($componentName);
foreach ($this->settings['components'] as $sectionName => $values) {
$result = $sectionName;
if ($sectionName == $componentName) {
return $result;
}
$parts = explode(' ', $sectionName);
if (count($parts) > 1) {
$sectionName = trim($parts[0]);
if ($sectionName == $componentName) {
return $result;
}
}
$sectionName = $componentManager->resolve($sectionName);
if ($sectionName == $componentName) {
return $result;
}
}
return false;
}
/**
* Returns component property names and values.
* This method implements caching and can be used in the run-time on the front-end.
* @param string $componentName Specifies the component name.
* @return array Returns an associative array with property names in the keys and property values in the values.
*/
public function getComponentProperties($componentName)
{
$key = md5($this->theme->getPath()).'component-properties';
if (self::$objectComponentPropertyMap !== null) {
$objectComponentMap = self::$objectComponentPropertyMap;
}
else {
$cached = Cache::get($key, false);
$unserialized = $cached ? @unserialize(@base64_decode($cached)) : false;
$objectComponentMap = $unserialized ?: [];
if ($objectComponentMap) {
self::$objectComponentPropertyMap = $objectComponentMap;
}
}
$objectCode = $this->getBaseFileName();
if (array_key_exists($objectCode, $objectComponentMap)) {
if (array_key_exists($componentName, $objectComponentMap[$objectCode])) {
return $objectComponentMap[$objectCode][$componentName];
}
return [];
}
if (!isset($this->settings['components'])) {
$objectComponentMap[$objectCode] = [];
}
else {
foreach ($this->settings['components'] as $name => $settings) {
$nameParts = explode(' ', $name);
if (count($nameParts) > 1) {
$name = trim($nameParts[0]);
}
$component = $this->getComponent($name);
if (!$component) {
continue;
}
$componentProperties = [];
$propertyDefinitions = $component->defineProperties();
foreach ($propertyDefinitions as $propertyName => $propertyInfo) {
$componentProperties[$propertyName] = $component->property($propertyName);
}
$objectComponentMap[$objectCode][$name] = $componentProperties;
}
}
self::$objectComponentPropertyMap = $objectComponentMap;
Cache::put($key, base64_encode(serialize($objectComponentMap)), Config::get('cms.parsedPageCacheTTL', 10));
if (array_key_exists($componentName, $objectComponentMap[$objectCode])) {
return $objectComponentMap[$objectCode][$componentName];
}
return [];
}
/**
* Clears the object cache.
* @param \Cms\Classes\Theme $theme Specifies a parent theme.
* @return void
*/
public static function clearCache($theme)
{
$key = md5($theme->getPath()).'component-properties';
Cache::forget($key);
}
//
// View Bag
//
/**
* Returns the configured view bag component.
* This method is used only in the back-end and for internal system needs when
* the standard way to access components is not an option.
* @return \Cms\Components\ViewBag Returns the view bag component instance.
*/
public function getViewBag()
{
if ($this->viewBagCache !== false) {
return $this->viewBagCache;
}
$componentName = 'viewBag';
if (!isset($this->settings['components'][$componentName])) {
$viewBag = new ViewBag(null, []);
$viewBag->name = $componentName;
return $this->viewBagCache = $viewBag;
}
return $this->viewBagCache = $this->getComponent($componentName);
}
/**
* Copies view bag properties to the view bag array.
* This is required for the back-end editors.
* @return void
*/
protected function fillViewBagArray()
{
$viewBag = $this->getViewBag();
foreach ($viewBag->getProperties() as $name => $value) {
$this->viewBag[$name] = $value;
}
$this->fireEvent('cmsObject.fillViewBagArray');
}
//
// Twig
//
/**
* Returns the Twig content string
* @return string
*/
public function getTwigContent()
{
return $this->markup;
}
/**
* Returns Twig node tree generated from the object's markup.
* This method is used by the system internally and shouldn't
* participate in the front-end request processing.
* @link http://twig.sensiolabs.org/doc/internals.html Twig internals
* @param mixed $markup Specifies the markup content.
* Use FALSE to load the content from the markup section.
* @return Twig\Node\ModuleNode A node tree
*/
public function getTwigNodeTree($markup = false)
{
$loader = new TwigLoader();
$twig = new TwigEnvironment($loader, []);
$twig->addExtension(new CmsTwigExtension());
$twig->addExtension(new SystemTwigExtension);
$stream = $twig->tokenize(new TwigSource($markup === false ? $this->markup : $markup, 'getTwigNodeTree'));
return $twig->parse($stream);
}
//
// Magic
//
/**
* Implements getter functionality for visible properties defined in
* the settings section or view bag array.
*/
public function __get($name)
{
if (is_array($this->settings) && array_key_exists($name, $this->settings)) {
return $this->settings[$name];
}
if (is_array($this->viewBag) && array_key_exists($name, $this->viewBag)) {
return $this->viewBag[$name];
}
return parent::__get($name);
}
/**
* Dynamically set attributes on the model.
*
* @param string $key
* @param mixed $value
* @return void
*/
public function __set($key, $value)
{
parent::__set($key, $value);
if (array_key_exists($key, $this->settings)) {
$this->settings[$key] = $this->attributes[$key];
}
}
/**
* Determine if an attribute exists on the object.
*
* @param string $key
* @return bool
*/
public function __isset($key)
{
if (parent::__isset($key) === true) {
return true;
}
if (isset($this->viewBag[$key]) === true) {
return true;
}
return isset($this->settings[$key]);
}
/**
* Dynamically handle calls into the query instance.
*
* @param string $method
* @param array $parameters
* @return mixed
*/
public function __call($method, $parameters)
{
if (in_array($method, $this->passthru)) {
$collection = $this->get();
return call_user_func_array([$collection, $method], $parameters);
}
return parent::__call($method, $parameters);
}
}