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<?php
/**
* Validation configuration files handler
*
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\Validator;
use Magento\Framework\Validator\Constraint\Option;
use Magento\Framework\Validator\Constraint\Option\Callback;
use Magento\Framework\Validator\Constraint\OptionInterface;
class Config extends \Magento\Framework\Config\AbstractXml
{
/**#@+
* Constraints types
*/
const CONSTRAINT_TYPE_ENTITY = 'entity';
const CONSTRAINT_TYPE_PROPERTY = 'property';
/**#@-*/
/**#@-*/
protected $_defaultBuilderClass = \Magento\Framework\Validator\Builder::class;
/**
* @var \Magento\Framework\Validator\UniversalFactory
*/
protected $_builderFactory;
/**
* @param array $configFiles
* @param \Magento\Framework\Config\DomFactory $domFactory
* @param \Magento\Framework\Validator\UniversalFactory $builderFactory
*/
public function __construct(
$configFiles,
\Magento\Framework\Config\DomFactory $domFactory,
\Magento\Framework\Validator\UniversalFactory $builderFactory
) {
$this->_builderFactory = $builderFactory;
parent::__construct($configFiles, $domFactory);
}
/**
* Create validator builder instance based on entity and group.
*
* @param string $entityName
* @param string $groupName
* @param array|null $builderConfig
* @throws \InvalidArgumentException
* @return \Magento\Framework\Validator\Builder
*/
public function createValidatorBuilder($entityName, $groupName, array $builderConfig = null)
{
if (!isset($this->_data[$entityName])) {
throw new \InvalidArgumentException(sprintf('Unknown validation entity "%s"', $entityName));
}
if (!isset($this->_data[$entityName][$groupName])) {
throw new \InvalidArgumentException(
sprintf('Unknown validation group "%s" in entity "%s"', $groupName, $entityName)
);
}
$builderClass = isset(
$this->_data[$entityName][$groupName]['builder']
) ? $this->_data[$entityName][$groupName]['builder'] : $this->_defaultBuilderClass;
if (!class_exists($builderClass)) {
throw new \InvalidArgumentException(sprintf('Builder class "%s" was not found', $builderClass));
}
$builder = $this->_builderFactory->create(
$builderClass,
['constraints' => $this->_data[$entityName][$groupName]['constraints']]
);
if (!$builder instanceof \Magento\Framework\Validator\Builder) {
throw new \InvalidArgumentException(
sprintf('Builder "%s" must extend \Magento\Framework\Validator\Builder', $builderClass)
);
}
if ($builderConfig) {
$builder->addConfigurations($builderConfig);
}
return $builder;
}
/**
* Create validator based on entity and group.
*
* @param string $entityName
* @param string $groupName
* @param array|null $builderConfig
* @return \Magento\Framework\Validator
*/
public function createValidator($entityName, $groupName, array $builderConfig = null)
{
return $this->createValidatorBuilder($entityName, $groupName, $builderConfig)->createValidator();
}
/**
* Extract configuration data from the DOM structure
*
* @param \DOMDocument $dom
* @return array
*/
protected function _extractData(\DOMDocument $dom)
{
$result = [];
/** @var \DOMElement $entity */
foreach ($dom->getElementsByTagName('entity') as $entity) {
$result[$entity->getAttribute('name')] = $this->_extractEntityGroupsConstraintsData($entity);
}
return $result;
}
/**
* Extract constraints associated with entity group using rules
*
* @param \DOMElement $entity
* @return array
*/
protected function _extractEntityGroupsConstraintsData(\DOMElement $entity)
{
$result = [];
$rulesConstraints = $this->_extractRulesConstraintsData($entity);
/** @var \DOMElement $group */
foreach ($entity->getElementsByTagName('group') as $group) {
$groupConstraints = [];
/** @var \DOMElement $use */
foreach ($group->getElementsByTagName('use') as $use) {
$ruleName = $use->getAttribute('rule');
if (isset($rulesConstraints[$ruleName])) {
$groupConstraints = array_merge($groupConstraints, $rulesConstraints[$ruleName]);
}
}
$result[$group->getAttribute('name')] = ['constraints' => $groupConstraints];
if ($group->hasAttribute('builder')) {
$result[$group->getAttribute('name')]['builder'] = $group->getAttribute('builder');
}
}
unset($groupConstraints);
unset($rulesConstraints);
return $result;
}
/**
* Extract constraints associated with rules
*
* @param \DOMElement $entity
* @return array
*/
protected function _extractRulesConstraintsData(\DOMElement $entity)
{
$rules = [];
/** @var \DOMElement $rule */
foreach ($entity->getElementsByTagName('rule') as $rule) {
$ruleName = $rule->getAttribute('name');
/** @var \DOMElement $propertyConstraints */
foreach ($rule->getElementsByTagName('property_constraints') as $propertyConstraints) {
/** @var \DOMElement $property */
foreach ($propertyConstraints->getElementsByTagName('property') as $property) {
/** @var \DOMElement $constraint */
foreach ($property->getElementsByTagName('constraint') as $constraint) {
$rules[$ruleName][] = [
'alias' => $constraint->getAttribute('alias'),
'class' => $constraint->getAttribute('class'),
'options' => $this->_extractConstraintOptions($constraint),
'property' => $property->getAttribute('name'),
'type' => self::CONSTRAINT_TYPE_PROPERTY,
];
}
}
}
/** @var \DOMElement $entityConstraints */
foreach ($rule->getElementsByTagName('entity_constraints') as $entityConstraints) {
/** @var \DOMElement $constraint */
foreach ($entityConstraints->getElementsByTagName('constraint') as $constraint) {
$rules[$ruleName][] = [
'alias' => $constraint->getAttribute('alias'),
'class' => $constraint->getAttribute('class'),
'options' => $this->_extractConstraintOptions($constraint),
'type' => self::CONSTRAINT_TYPE_ENTITY,
];
}
}
}
return $rules;
}
/**
* Extract constraint options.
*
* @param \DOMElement $constraint
* @return array|null
*/
protected function _extractConstraintOptions(\DOMElement $constraint)
{
if (!$constraint->hasChildNodes()) {
return null;
}
$options = [];
$children = $this->_collectChildren($constraint);
/**
* Read constructor arguments
*
* <constraint class="Constraint">
* <argument>
* <option name="minValue">123</option>
* <option name="maxValue">234</option>
* </argument>
* <argument>0</argument>
* <argument>
* <callback class="Class" method="method" />
* </argument>
* </constraint>
*/
$arguments = $this->_readArguments($children);
if ($arguments) {
$options['arguments'] = $arguments;
}
/**
* Read constraint configurator callback
*
* <constraint class="Constraint">
* <callback class="Magento\Foo\Helper\Data" method="configureValidator"/>
* </constraint>
*/
$callback = $this->_readCallback($children);
if ($callback) {
$options['callback'] = $callback;
}
/**
* Read constraint method configuration
*/
$methods = $this->_readMethods($children);
if ($methods) {
$options['methods'] = $methods;
}
return $options;
}
/**
* Get element children.
*
* @param \DOMElement $element
* @return array
*/
protected function _collectChildren($element)
{
$children = [];
/** @var $node \DOMElement */
foreach ($element->childNodes as $node) {
if (!$node instanceof \DOMElement) {
continue;
}
$nodeName = strtolower($node->nodeName);
if (!array_key_exists($nodeName, $children)) {
$children[$nodeName] = [];
}
$children[$nodeName][] = $node;
}
return $children;
}
/**
* Get arguments.
*
* @param array $children
* @return OptionInterface[]|null
*/
protected function _readArguments($children)
{
if (array_key_exists('argument', $children)) {
$arguments = [];
/** @var $node \DOMElement */
foreach ($children['argument'] as $node) {
$nodeChildren = $this->_collectChildren($node);
$callback = $this->_readCallback($nodeChildren);
$options = $this->_readOptions($nodeChildren);
if ($callback) {
$arguments[] = $callback[0];
} elseif ($options) {
$arguments[] = $options;
} else {
$argument = $node->textContent;
$arguments[] = new Option(trim($argument));
}
}
return $arguments;
}
return null;
}
/**
* Get callback rules.
*
* @param array $children
* @return Callback[]|null
*/
protected function _readCallback($children)
{
if (array_key_exists('callback', $children)) {
$callbacks = [];
/** @var $callbackData \DOMElement */
foreach ($children['callback'] as $callbackData) {
$callbacks[] = new Callback(
[trim($callbackData->getAttribute('class')), trim($callbackData->getAttribute('method'))],
null,
true
);
}
return $callbacks;
}
return null;
}
/**
* Get options array.
*
* @param array $children
* @return Option|null
*/
protected function _readOptions($children)
{
if (array_key_exists('option', $children)) {
$data = [];
/** @var $option \DOMElement */
foreach ($children['option'] as $option) {
$value = trim($option->textContent);
if ($option->hasAttribute('name')) {
$data[$option->getAttribute('name')] = $value;
} else {
$data[] = $value;
}
}
return new Option($data);
}
return null;
}
/**
* Get methods configuration.
*
* Example of method configuration:
* <constraint class="Constraint">
* <method name="setMaxValue">
* <argument>
* <option name="minValue">123</option>
* <option name="maxValue">234</option>
* </argument>
* <argument>0</argument>
* <argument>
* <callback class="Class" method="method" />
* </argument>
* </method>
* </constraint>
*
* @param array $children
* @return array|null
*/
protected function _readMethods($children)
{
if (array_key_exists('method', $children)) {
$methods = [];
/** @var $method \DOMElement */
foreach ($children['method'] as $method) {
$children = $this->_collectChildren($method);
$methodName = $method->getAttribute('name');
$methodOptions = ['method' => $methodName];
$arguments = $this->_readArguments($children);
if ($arguments) {
$methodOptions['arguments'] = $arguments;
}
$methods[$methodName] = $methodOptions;
}
return $methods;
}
return null;
}
/**
* Get absolute path to validation.xsd
*
* @return string
*/
public function getSchemaFile()
{
return __DIR__ . '/etc/validation.xsd';
}
/**
* Get initial XML of a valid document.
*
* @return string
*/
protected function _getInitialXml()
{
return '<?xml version="1.0" encoding="UTF-8"?>' .
'<validation xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"></validation>';
}
/**
* Define id attributes for entities
*
* @return array
*/
protected function _getIdAttributes()
{
return [
'/validation/entity' => 'name',
'/validation/entity/rules/rule' => 'name',
'/validation/entity/rules/rule/entity_constraints/constraint' => 'class',
'/validation/entity/rules/rule/property_constraints/property/constraint' => 'class',
'/validation/entity/rules/rule/property_constraints/property' => 'name',
'/validation/entity/groups/group' => 'name',
'/validation/entity/groups/group/uses/use' => 'rule'
];
}
}