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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\Config\Definition;
- use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
- use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
- use Symfony\Component\Config\Definition\Exception\UnsetKeyException;
- /**
- * Represents an Array node in the config tree.
- *
- * @author Johannes M. Schmitt <schmittjoh@gmail.com>
- */
- class ArrayNode extends BaseNode implements PrototypeNodeInterface
- {
- protected $xmlRemappings = [];
- protected $children = [];
- protected $allowFalse = false;
- protected $allowNewKeys = true;
- protected $addIfNotSet = false;
- protected $performDeepMerging = true;
- protected $ignoreExtraKeys = false;
- protected $removeExtraKeys = true;
- protected $normalizeKeys = true;
- public function setNormalizeKeys($normalizeKeys)
- {
- $this->normalizeKeys = (bool) $normalizeKeys;
- }
- /**
- * {@inheritdoc}
- *
- * Namely, you mostly have foo_bar in YAML while you have foo-bar in XML.
- * After running this method, all keys are normalized to foo_bar.
- *
- * If you have a mixed key like foo-bar_moo, it will not be altered.
- * The key will also not be altered if the target key already exists.
- */
- protected function preNormalize($value)
- {
- if (!$this->normalizeKeys || !\is_array($value)) {
- return $value;
- }
- $normalized = [];
- foreach ($value as $k => $v) {
- if (false !== strpos($k, '-') && false === strpos($k, '_') && !\array_key_exists($normalizedKey = str_replace('-', '_', $k), $value)) {
- $normalized[$normalizedKey] = $v;
- } else {
- $normalized[$k] = $v;
- }
- }
- return $normalized;
- }
- /**
- * Retrieves the children of this node.
- *
- * @return array The children
- */
- public function getChildren()
- {
- return $this->children;
- }
- /**
- * Sets the xml remappings that should be performed.
- *
- * @param array $remappings An array of the form [[string, string]]
- */
- public function setXmlRemappings(array $remappings)
- {
- $this->xmlRemappings = $remappings;
- }
- /**
- * Gets the xml remappings that should be performed.
- *
- * @return array an array of the form [[string, string]]
- */
- public function getXmlRemappings()
- {
- return $this->xmlRemappings;
- }
- /**
- * Sets whether to add default values for this array if it has not been
- * defined in any of the configuration files.
- */
- public function setAddIfNotSet(bool $boolean)
- {
- $this->addIfNotSet = $boolean;
- }
- /**
- * Sets whether false is allowed as value indicating that the array should be unset.
- */
- public function setAllowFalse(bool $allow)
- {
- $this->allowFalse = $allow;
- }
- /**
- * Sets whether new keys can be defined in subsequent configurations.
- */
- public function setAllowNewKeys(bool $allow)
- {
- $this->allowNewKeys = $allow;
- }
- /**
- * Sets if deep merging should occur.
- */
- public function setPerformDeepMerging(bool $boolean)
- {
- $this->performDeepMerging = $boolean;
- }
- /**
- * Whether extra keys should just be ignored without an exception.
- *
- * @param bool $boolean To allow extra keys
- * @param bool $remove To remove extra keys
- */
- public function setIgnoreExtraKeys(bool $boolean, bool $remove = true)
- {
- $this->ignoreExtraKeys = $boolean;
- $this->removeExtraKeys = $this->ignoreExtraKeys && $remove;
- }
- /**
- * {@inheritdoc}
- */
- public function setName(string $name)
- {
- $this->name = $name;
- }
- /**
- * {@inheritdoc}
- */
- public function hasDefaultValue()
- {
- return $this->addIfNotSet;
- }
- /**
- * {@inheritdoc}
- */
- public function getDefaultValue()
- {
- if (!$this->hasDefaultValue()) {
- throw new \RuntimeException(sprintf('The node at path "%s" has no default value.', $this->getPath()));
- }
- $defaults = [];
- foreach ($this->children as $name => $child) {
- if ($child->hasDefaultValue()) {
- $defaults[$name] = $child->getDefaultValue();
- }
- }
- return $defaults;
- }
- /**
- * Adds a child node.
- *
- * @throws \InvalidArgumentException when the child node has no name
- * @throws \InvalidArgumentException when the child node's name is not unique
- */
- public function addChild(NodeInterface $node)
- {
- $name = $node->getName();
- if (!\strlen($name)) {
- throw new \InvalidArgumentException('Child nodes must be named.');
- }
- if (isset($this->children[$name])) {
- throw new \InvalidArgumentException(sprintf('A child node named "%s" already exists.', $name));
- }
- $this->children[$name] = $node;
- }
- /**
- * Finalizes the value of this node.
- *
- * @param mixed $value
- *
- * @return mixed The finalised value
- *
- * @throws UnsetKeyException
- * @throws InvalidConfigurationException if the node doesn't have enough children
- */
- protected function finalizeValue($value)
- {
- if (false === $value) {
- throw new UnsetKeyException(sprintf('Unsetting key for path "%s", value: %s.', $this->getPath(), json_encode($value)));
- }
- foreach ($this->children as $name => $child) {
- if (!\array_key_exists($name, $value)) {
- if ($child->isRequired()) {
- $message = sprintf('The child config "%s" under "%s" must be configured', $name, $this->getPath());
- if ($child->getInfo()) {
- $message .= sprintf(': %s', $child->getInfo());
- } else {
- $message .= '.';
- }
- $ex = new InvalidConfigurationException($message);
- $ex->setPath($this->getPath());
- throw $ex;
- }
- if ($child->hasDefaultValue()) {
- $value[$name] = $child->getDefaultValue();
- }
- continue;
- }
- if ($child->isDeprecated()) {
- $deprecation = $child->getDeprecation($name, $this->getPath());
- trigger_deprecation($deprecation['package'], $deprecation['version'], $deprecation['message']);
- }
- try {
- $value[$name] = $child->finalize($value[$name]);
- } catch (UnsetKeyException $e) {
- unset($value[$name]);
- }
- }
- return $value;
- }
- /**
- * Validates the type of the value.
- *
- * @param mixed $value
- *
- * @throws InvalidTypeException
- */
- protected function validateType($value)
- {
- if (!\is_array($value) && (!$this->allowFalse || false !== $value)) {
- $ex = new InvalidTypeException(sprintf('Invalid type for path "%s". Expected "array", but got "%s"', $this->getPath(), get_debug_type($value)));
- if ($hint = $this->getInfo()) {
- $ex->addHint($hint);
- }
- $ex->setPath($this->getPath());
- throw $ex;
- }
- }
- /**
- * Normalizes the value.
- *
- * @param mixed $value The value to normalize
- *
- * @return mixed The normalized value
- *
- * @throws InvalidConfigurationException
- */
- protected function normalizeValue($value)
- {
- if (false === $value) {
- return $value;
- }
- $value = $this->remapXml($value);
- $normalized = [];
- foreach ($value as $name => $val) {
- if (isset($this->children[$name])) {
- try {
- $normalized[$name] = $this->children[$name]->normalize($val);
- } catch (UnsetKeyException $e) {
- }
- unset($value[$name]);
- } elseif (!$this->removeExtraKeys) {
- $normalized[$name] = $val;
- }
- }
- // if extra fields are present, throw exception
- if (\count($value) && !$this->ignoreExtraKeys) {
- $proposals = array_keys($this->children);
- sort($proposals);
- $guesses = [];
- foreach (array_keys($value) as $subject) {
- $minScore = \INF;
- foreach ($proposals as $proposal) {
- $distance = levenshtein($subject, $proposal);
- if ($distance <= $minScore && $distance < 3) {
- $guesses[$proposal] = $distance;
- $minScore = $distance;
- }
- }
- }
- $msg = sprintf('Unrecognized option%s "%s" under "%s"', 1 === \count($value) ? '' : 's', implode(', ', array_keys($value)), $this->getPath());
- if (\count($guesses)) {
- asort($guesses);
- $msg .= sprintf('. Did you mean "%s"?', implode('", "', array_keys($guesses)));
- } else {
- $msg .= sprintf('. Available option%s %s "%s".', 1 === \count($proposals) ? '' : 's', 1 === \count($proposals) ? 'is' : 'are', implode('", "', $proposals));
- }
- $ex = new InvalidConfigurationException($msg);
- $ex->setPath($this->getPath());
- throw $ex;
- }
- return $normalized;
- }
- /**
- * Remaps multiple singular values to a single plural value.
- *
- * @return array The remapped values
- */
- protected function remapXml(array $value)
- {
- foreach ($this->xmlRemappings as [$singular, $plural]) {
- if (!isset($value[$singular])) {
- continue;
- }
- $value[$plural] = Processor::normalizeConfig($value, $singular, $plural);
- unset($value[$singular]);
- }
- return $value;
- }
- /**
- * Merges values together.
- *
- * @param mixed $leftSide The left side to merge
- * @param mixed $rightSide The right side to merge
- *
- * @return mixed The merged values
- *
- * @throws InvalidConfigurationException
- * @throws \RuntimeException
- */
- protected function mergeValues($leftSide, $rightSide)
- {
- if (false === $rightSide) {
- // if this is still false after the last config has been merged the
- // finalization pass will take care of removing this key entirely
- return false;
- }
- if (false === $leftSide || !$this->performDeepMerging) {
- return $rightSide;
- }
- foreach ($rightSide as $k => $v) {
- // no conflict
- if (!\array_key_exists($k, $leftSide)) {
- if (!$this->allowNewKeys) {
- $ex = new InvalidConfigurationException(sprintf('You are not allowed to define new elements for path "%s". Please define all elements for this path in one config file. If you are trying to overwrite an element, make sure you redefine it with the same name.', $this->getPath()));
- $ex->setPath($this->getPath());
- throw $ex;
- }
- $leftSide[$k] = $v;
- continue;
- }
- if (!isset($this->children[$k])) {
- if (!$this->ignoreExtraKeys || $this->removeExtraKeys) {
- throw new \RuntimeException('merge() expects a normalized config array.');
- }
- $leftSide[$k] = $v;
- continue;
- }
- $leftSide[$k] = $this->children[$k]->merge($leftSide[$k], $v);
- }
- return $leftSide;
- }
- /**
- * {@inheritdoc}
- */
- protected function allowPlaceholders(): bool
- {
- return false;
- }
- }
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