511 lines
14 KiB
PHP
511 lines
14 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Config\Definition;
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use Symfony\Component\Config\Definition\Exception\Exception;
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use Symfony\Component\Config\Definition\Exception\ForbiddenOverwriteException;
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use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
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use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
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use Symfony\Component\Config\Definition\Exception\UnsetKeyException;
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/**
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* The base node class.
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*
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* @author Johannes M. Schmitt <schmittjoh@gmail.com>
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*/
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abstract class BaseNode implements NodeInterface
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{
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public const DEFAULT_PATH_SEPARATOR = '.';
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private static array $placeholderUniquePrefixes = [];
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private static array $placeholders = [];
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protected $name;
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protected $parent;
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protected $normalizationClosures = [];
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protected $finalValidationClosures = [];
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protected $allowOverwrite = true;
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protected $required = false;
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protected $deprecation = [];
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protected $equivalentValues = [];
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protected $attributes = [];
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protected $pathSeparator;
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private mixed $handlingPlaceholder = null;
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/**
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* @throws \InvalidArgumentException if the name contains a period
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*/
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public function __construct(?string $name, NodeInterface $parent = null, string $pathSeparator = self::DEFAULT_PATH_SEPARATOR)
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{
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if (str_contains($name = (string) $name, $pathSeparator)) {
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throw new \InvalidArgumentException('The name must not contain ".'.$pathSeparator.'".');
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}
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$this->name = $name;
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$this->parent = $parent;
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$this->pathSeparator = $pathSeparator;
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}
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/**
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* Register possible (dummy) values for a dynamic placeholder value.
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*
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* Matching configuration values will be processed with a provided value, one by one. After a provided value is
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* successfully processed the configuration value is returned as is, thus preserving the placeholder.
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*
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* @internal
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*/
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public static function setPlaceholder(string $placeholder, array $values): void
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{
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if (!$values) {
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throw new \InvalidArgumentException('At least one value must be provided.');
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}
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self::$placeholders[$placeholder] = $values;
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}
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/**
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* Adds a common prefix for dynamic placeholder values.
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*
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* Matching configuration values will be skipped from being processed and are returned as is, thus preserving the
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* placeholder. An exact match provided by {@see setPlaceholder()} might take precedence.
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*
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* @internal
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*/
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public static function setPlaceholderUniquePrefix(string $prefix): void
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{
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self::$placeholderUniquePrefixes[] = $prefix;
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}
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/**
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* Resets all current placeholders available.
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*
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* @internal
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*/
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public static function resetPlaceholders(): void
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{
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self::$placeholderUniquePrefixes = [];
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self::$placeholders = [];
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}
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public function setAttribute(string $key, mixed $value)
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{
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$this->attributes[$key] = $value;
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}
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public function getAttribute(string $key, mixed $default = null): mixed
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{
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return $this->attributes[$key] ?? $default;
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}
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public function hasAttribute(string $key): bool
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{
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return isset($this->attributes[$key]);
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}
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public function getAttributes(): array
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{
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return $this->attributes;
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}
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public function setAttributes(array $attributes)
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{
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$this->attributes = $attributes;
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}
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public function removeAttribute(string $key)
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{
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unset($this->attributes[$key]);
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}
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/**
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* Sets an info message.
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*/
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public function setInfo(string $info)
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{
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$this->setAttribute('info', $info);
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}
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/**
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* Returns info message.
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*/
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public function getInfo(): ?string
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{
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return $this->getAttribute('info');
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}
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/**
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* Sets the example configuration for this node.
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*/
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public function setExample(string|array $example)
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{
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$this->setAttribute('example', $example);
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}
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/**
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* Retrieves the example configuration for this node.
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*/
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public function getExample(): string|array|null
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{
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return $this->getAttribute('example');
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}
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/**
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* Adds an equivalent value.
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*/
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public function addEquivalentValue(mixed $originalValue, mixed $equivalentValue)
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{
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$this->equivalentValues[] = [$originalValue, $equivalentValue];
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}
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/**
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* Set this node as required.
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*/
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public function setRequired(bool $boolean)
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{
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$this->required = $boolean;
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}
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/**
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* Sets this node as deprecated.
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*
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* @param string $package The name of the composer package that is triggering the deprecation
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* @param string $version The version of the package that introduced the deprecation
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* @param string $message the deprecation message to use
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*
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* You can use %node% and %path% placeholders in your message to display,
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* respectively, the node name and its complete path
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*/
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public function setDeprecated(string $package, string $version, string $message = 'The child node "%node%" at path "%path%" is deprecated.')
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{
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$this->deprecation = [
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'package' => $package,
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'version' => $version,
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'message' => $message,
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];
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}
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/**
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* Sets if this node can be overridden.
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*/
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public function setAllowOverwrite(bool $allow)
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{
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$this->allowOverwrite = $allow;
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}
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/**
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* Sets the closures used for normalization.
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*
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* @param \Closure[] $closures An array of Closures used for normalization
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*/
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public function setNormalizationClosures(array $closures)
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{
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$this->normalizationClosures = $closures;
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}
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/**
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* Sets the closures used for final validation.
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*
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* @param \Closure[] $closures An array of Closures used for final validation
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*/
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public function setFinalValidationClosures(array $closures)
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{
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$this->finalValidationClosures = $closures;
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}
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/**
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* {@inheritdoc}
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*/
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public function isRequired(): bool
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{
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return $this->required;
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}
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/**
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* Checks if this node is deprecated.
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*/
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public function isDeprecated(): bool
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{
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return (bool) $this->deprecation;
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}
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/**
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* @param string $node The configuration node name
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* @param string $path The path of the node
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*/
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public function getDeprecation(string $node, string $path): array
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{
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return [
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'package' => $this->deprecation['package'],
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'version' => $this->deprecation['version'],
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'message' => strtr($this->deprecation['message'], ['%node%' => $node, '%path%' => $path]),
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];
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}
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/**
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* {@inheritdoc}
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*/
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public function getName(): string
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{
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return $this->name;
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}
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/**
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* {@inheritdoc}
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*/
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public function getPath(): string
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{
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if (null !== $this->parent) {
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return $this->parent->getPath().$this->pathSeparator.$this->name;
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}
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return $this->name;
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}
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/**
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* {@inheritdoc}
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*/
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final public function merge(mixed $leftSide, mixed $rightSide): mixed
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{
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if (!$this->allowOverwrite) {
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throw new ForbiddenOverwriteException(sprintf('Configuration path "%s" cannot be overwritten. You have to define all options for this path, and any of its sub-paths in one configuration section.', $this->getPath()));
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}
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if ($leftSide !== $leftPlaceholders = self::resolvePlaceholderValue($leftSide)) {
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foreach ($leftPlaceholders as $leftPlaceholder) {
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$this->handlingPlaceholder = $leftSide;
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try {
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$this->merge($leftPlaceholder, $rightSide);
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} finally {
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$this->handlingPlaceholder = null;
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}
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}
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return $rightSide;
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}
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if ($rightSide !== $rightPlaceholders = self::resolvePlaceholderValue($rightSide)) {
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foreach ($rightPlaceholders as $rightPlaceholder) {
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$this->handlingPlaceholder = $rightSide;
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try {
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$this->merge($leftSide, $rightPlaceholder);
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} finally {
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$this->handlingPlaceholder = null;
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}
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}
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return $rightSide;
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}
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$this->doValidateType($leftSide);
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$this->doValidateType($rightSide);
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return $this->mergeValues($leftSide, $rightSide);
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}
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/**
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* {@inheritdoc}
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*/
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final public function normalize(mixed $value): mixed
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{
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$value = $this->preNormalize($value);
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// run custom normalization closures
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foreach ($this->normalizationClosures as $closure) {
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$value = $closure($value);
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}
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// resolve placeholder value
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if ($value !== $placeholders = self::resolvePlaceholderValue($value)) {
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foreach ($placeholders as $placeholder) {
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$this->handlingPlaceholder = $value;
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try {
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$this->normalize($placeholder);
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} finally {
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$this->handlingPlaceholder = null;
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}
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}
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return $value;
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}
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// replace value with their equivalent
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foreach ($this->equivalentValues as $data) {
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if ($data[0] === $value) {
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$value = $data[1];
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}
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}
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// validate type
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$this->doValidateType($value);
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// normalize value
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return $this->normalizeValue($value);
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}
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/**
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* Normalizes the value before any other normalization is applied.
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*/
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protected function preNormalize(mixed $value): mixed
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{
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return $value;
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}
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/**
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* Returns parent node for this node.
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*/
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public function getParent(): ?NodeInterface
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{
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return $this->parent;
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}
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/**
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* {@inheritdoc}
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*/
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final public function finalize(mixed $value): mixed
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{
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if ($value !== $placeholders = self::resolvePlaceholderValue($value)) {
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foreach ($placeholders as $placeholder) {
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$this->handlingPlaceholder = $value;
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try {
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$this->finalize($placeholder);
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} finally {
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$this->handlingPlaceholder = null;
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}
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}
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return $value;
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}
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$this->doValidateType($value);
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$value = $this->finalizeValue($value);
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// Perform validation on the final value if a closure has been set.
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// The closure is also allowed to return another value.
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foreach ($this->finalValidationClosures as $closure) {
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try {
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$value = $closure($value);
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} catch (Exception $e) {
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if ($e instanceof UnsetKeyException && null !== $this->handlingPlaceholder) {
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continue;
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}
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throw $e;
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} catch (\Exception $e) {
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throw new InvalidConfigurationException(sprintf('Invalid configuration for path "%s": ', $this->getPath()).$e->getMessage(), $e->getCode(), $e);
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}
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}
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return $value;
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}
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/**
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||
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* Validates the type of a Node.
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||
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*
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||
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* @throws InvalidTypeException when the value is invalid
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*/
|
||
|
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abstract protected function validateType(mixed $value);
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/**
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||
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* Normalizes the value.
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||
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*/
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||
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abstract protected function normalizeValue(mixed $value): mixed;
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||
|
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|
||
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/**
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||
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* Merges two values together.
|
||
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*/
|
||
|
|
abstract protected function mergeValues(mixed $leftSide, mixed $rightSide): mixed;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Finalizes a value.
|
||
|
|
*/
|
||
|
|
abstract protected function finalizeValue(mixed $value): mixed;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tests if placeholder values are allowed for this node.
|
||
|
|
*/
|
||
|
|
protected function allowPlaceholders(): bool
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tests if a placeholder is being handled currently.
|
||
|
|
*/
|
||
|
|
protected function isHandlingPlaceholder(): bool
|
||
|
|
{
|
||
|
|
return null !== $this->handlingPlaceholder;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets allowed dynamic types for this node.
|
||
|
|
*/
|
||
|
|
protected function getValidPlaceholderTypes(): array
|
||
|
|
{
|
||
|
|
return [];
|
||
|
|
}
|
||
|
|
|
||
|
|
private static function resolvePlaceholderValue(mixed $value): mixed
|
||
|
|
{
|
||
|
|
if (\is_string($value)) {
|
||
|
|
if (isset(self::$placeholders[$value])) {
|
||
|
|
return self::$placeholders[$value];
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach (self::$placeholderUniquePrefixes as $placeholderUniquePrefix) {
|
||
|
|
if (str_starts_with($value, $placeholderUniquePrefix)) {
|
||
|
|
return [];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $value;
|
||
|
|
}
|
||
|
|
|
||
|
|
private function doValidateType(mixed $value): void
|
||
|
|
{
|
||
|
|
if (null !== $this->handlingPlaceholder && !$this->allowPlaceholders()) {
|
||
|
|
$e = new InvalidTypeException(sprintf('A dynamic value is not compatible with a "%s" node type at path "%s".', static::class, $this->getPath()));
|
||
|
|
$e->setPath($this->getPath());
|
||
|
|
|
||
|
|
throw $e;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (null === $this->handlingPlaceholder || null === $value) {
|
||
|
|
$this->validateType($value);
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$knownTypes = array_keys(self::$placeholders[$this->handlingPlaceholder]);
|
||
|
|
$validTypes = $this->getValidPlaceholderTypes();
|
||
|
|
|
||
|
|
if ($validTypes && array_diff($knownTypes, $validTypes)) {
|
||
|
|
$e = new InvalidTypeException(sprintf(
|
||
|
|
'Invalid type for path "%s". Expected %s, but got %s.',
|
||
|
|
$this->getPath(),
|
||
|
|
1 === \count($validTypes) ? '"'.reset($validTypes).'"' : 'one of "'.implode('", "', $validTypes).'"',
|
||
|
|
1 === \count($knownTypes) ? '"'.reset($knownTypes).'"' : 'one of "'.implode('", "', $knownTypes).'"'
|
||
|
|
));
|
||
|
|
if ($hint = $this->getInfo()) {
|
||
|
|
$e->addHint($hint);
|
||
|
|
}
|
||
|
|
$e->setPath($this->getPath());
|
||
|
|
|
||
|
|
throw $e;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->validateType($value);
|
||
|
|
}
|
||
|
|
}
|