comparison vendor/symfony/dependency-injection/Loader/XmlFileLoader.php @ 0:4c8ae668cc8c

Initial import (non-working)

+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[e-mail]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\DependencyInjection\Loader;
+
+use Symfony\Component\Config\Resource\FileResource;
+use Symfony\Component\Config\Util\XmlUtils;
+use Symfony\Component\DependencyInjection\DefinitionDecorator;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\DependencyInjection\Alias;
+use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+use Symfony\Component\DependencyInjection\Exception\RuntimeException;
+use Symfony\Component\ExpressionLanguage\Expression;
+
+/**
+ * XmlFileLoader loads XML files service definitions.
+ *
+ * @author Fabien Potencier <[e-mail]>
+ */
+class XmlFileLoader extends FileLoader
+{
+    const NS = 'http://symfony.com/schema/dic/services';
+
+    /**
+     * {@inheritdoc}
+     */
+    public function load($resource, $type = null)
+    {
+        $path = $this->locator->locate($resource);
+
+        $xml = $this->parseFileToDOM($path);
+
+        $this->container->addResource(new FileResource($path));
+
+        // anonymous services
+        $this->processAnonymousServices($xml, $path);
+
+        // imports
+        $this->parseImports($xml, $path);
+
+        // parameters
+        $this->parseParameters($xml);
+
+        // extensions
+        $this->loadFromExtensions($xml);
+
+        // services
+        $this->parseDefinitions($xml, $path);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supports($resource, $type = null)
+    {
+        return is_string($resource) && 'xml' === pathinfo($resource, PATHINFO_EXTENSION);
+    }
+
+    /**
+     * Parses parameters.
+     *
+     * @param \DOMDocument $xml
+     */
+    private function parseParameters(\DOMDocument $xml)
+    {
+        if ($parameters = $this->getChildren($xml->documentElement, 'parameters')) {
+            $this->container->getParameterBag()->add($this->getArgumentsAsPhp($parameters[0], 'parameter'));
+        }
+    }
+
+    /**
+     * Parses imports.
+     *
+     * @param \DOMDocument $xml
+     * @param string       $file
+     */
+    private function parseImports(\DOMDocument $xml, $file)
+    {
+        $xpath = new \DOMXPath($xml);
+        $xpath->registerNamespace('container', self::NS);
+
+        if (false === $imports = $xpath->query('//container:imports/container:import')) {
+            return;
+        }
+
+        $defaultDirectory = dirname($file);
+        foreach ($imports as $import) {
+            $this->setCurrentDir($defaultDirectory);
+            $this->import($import->getAttribute('resource'), null, (bool) XmlUtils::phpize($import->getAttribute('ignore-errors')), $file);
+        }
+    }
+
+    /**
+     * Parses multiple definitions.
+     *
+     * @param \DOMDocument $xml
+     * @param string       $file
+     */
+    private function parseDefinitions(\DOMDocument $xml, $file)
+    {
+        $xpath = new \DOMXPath($xml);
+        $xpath->registerNamespace('container', self::NS);
+
+        if (false === $services = $xpath->query('//container:services/container:service')) {
+            return;
+        }
+
+        foreach ($services as $service) {
+            if (null !== $definition = $this->parseDefinition($service, $file)) {
+                $this->container->setDefinition((string) $service->getAttribute('id'), $definition);
+            }
+        }
+    }
+
+    /**
+     * Parses an individual Definition.
+     *
+     * @param \DOMElement $service
+     * @param string      $file
+     *
+     * @return Definition|null
+     */
+    private function parseDefinition(\DOMElement $service, $file)
+    {
+        if ($alias = $service->getAttribute('alias')) {
+            $this->validateAlias($service, $file);
+
+            $public = true;
+            if ($publicAttr = $service->getAttribute('public')) {
+                $public = XmlUtils::phpize($publicAttr);
+            }
+            $this->container->setAlias((string) $service->getAttribute('id'), new Alias($alias, $public));
+
+            return;
+        }
+
+        if ($parent = $service->getAttribute('parent')) {
+            $definition = new DefinitionDecorator($parent);
+        } else {
+            $definition = new Definition();
+        }
+
+        foreach (array('class', 'shared', 'public', 'synthetic', 'lazy', 'abstract') as $key) {
+            if ($value = $service->getAttribute($key)) {
+                $method = 'set'.$key;
+                $definition->$method(XmlUtils::phpize($value));
+            }
+        }
+
+        if ($value = $service->getAttribute('autowire')) {
+            $definition->setAutowired(XmlUtils::phpize($value));
+        }
+
+        if ($files = $this->getChildren($service, 'file')) {
+            $definition->setFile($files[0]->nodeValue);
+        }
+
+        if ($deprecated = $this->getChildren($service, 'deprecated')) {
+            $definition->setDeprecated(true, $deprecated[0]->nodeValue ?: null);
+        }
+
+        $definition->setArguments($this->getArgumentsAsPhp($service, 'argument'));
+        $definition->setProperties($this->getArgumentsAsPhp($service, 'property'));
+
+        if ($factories = $this->getChildren($service, 'factory')) {
+            $factory = $factories[0];
+            if ($function = $factory->getAttribute('function')) {
+                $definition->setFactory($function);
+            } else {
+                $factoryService = $this->getChildren($factory, 'service');
+
+                if (isset($factoryService[0])) {
+                    $class = $this->parseDefinition($factoryService[0], $file);
+                } elseif ($childService = $factory->getAttribute('service')) {
+                    $class = new Reference($childService, ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE);
+                } else {
+                    $class = $factory->getAttribute('class');
+                }
+
+                $definition->setFactory(array($class, $factory->getAttribute('method')));
+            }
+        }
+
+        if ($configurators = $this->getChildren($service, 'configurator')) {
+            $configurator = $configurators[0];
+            if ($function = $configurator->getAttribute('function')) {
+                $definition->setConfigurator($function);
+            } else {
+                $configuratorService = $this->getChildren($configurator, 'service');
+
+                if (isset($configuratorService[0])) {
+                    $class = $this->parseDefinition($configuratorService[0], $file);
+                } elseif ($childService = $configurator->getAttribute('service')) {
+                    $class = new Reference($childService, ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE);
+                } else {
+                    $class = $configurator->getAttribute('class');
+                }
+
+                $definition->setConfigurator(array($class, $configurator->getAttribute('method')));
+            }
+        }
+
+        foreach ($this->getChildren($service, 'call') as $call) {
+            $definition->addMethodCall($call->getAttribute('method'), $this->getArgumentsAsPhp($call, 'argument'));
+        }
+
+        foreach ($this->getChildren($service, 'tag') as $tag) {
+            $parameters = array();
+            foreach ($tag->attributes as $name => $node) {
+                if ('name' === $name) {
+                    continue;
+                }
+
+                if (false !== strpos($name, '-') && false === strpos($name, '_') && !array_key_exists($normalizedName = str_replace('-', '_', $name), $parameters)) {
+                    $parameters[$normalizedName] = XmlUtils::phpize($node->nodeValue);
+                }
+                // keep not normalized key
+                $parameters[$name] = XmlUtils::phpize($node->nodeValue);
+            }
+
+            if ('' === $tag->getAttribute('name')) {
+                throw new InvalidArgumentException(sprintf('The tag name for service "%s" in %s must be a non-empty string.', (string) $service->getAttribute('id'), $file));
+            }
+
+            $definition->addTag($tag->getAttribute('name'), $parameters);
+        }
+
+        foreach ($this->getChildren($service, 'autowiring-type') as $type) {
+            $definition->addAutowiringType($type->textContent);
+        }
+
+        if ($value = $service->getAttribute('decorates')) {
+            $renameId = $service->hasAttribute('decoration-inner-name') ? $service->getAttribute('decoration-inner-name') : null;
+            $priority = $service->hasAttribute('decoration-priority') ? $service->getAttribute('decoration-priority') : 0;
+            $definition->setDecoratedService($value, $renameId, $priority);
+        }
+
+        return $definition;
+    }
+
+    /**
+     * Parses a XML file to a \DOMDocument.
+     *
+     * @param string $file Path to a file
+     *
+     * @return \DOMDocument
+     *
+     * @throws InvalidArgumentException When loading of XML file returns error
+     */
+    private function parseFileToDOM($file)
+    {
+        try {
+            $dom = XmlUtils::loadFile($file, array($this, 'validateSchema'));
+        } catch (\InvalidArgumentException $e) {
+            throw new InvalidArgumentException(sprintf('Unable to parse file "%s".', $file), $e->getCode(), $e);
+        }
+
+        $this->validateExtensions($dom, $file);
+
+        return $dom;
+    }
+
+    /**
+     * Processes anonymous services.
+     *
+     * @param \DOMDocument $xml
+     * @param string       $file
+     */
+    private function processAnonymousServices(\DOMDocument $xml, $file)
+    {
+        $definitions = array();
+        $count = 0;
+
+        $xpath = new \DOMXPath($xml);
+        $xpath->registerNamespace('container', self::NS);
+
+        // anonymous services as arguments/properties
+        if (false !== $nodes = $xpath->query('//container:argument[@type="service"][not(@id)]|//container:property[@type="service"][not(@id)]')) {
+            foreach ($nodes as $node) {
+                // give it a unique name
+                $id = sprintf('%s_%d', hash('sha256', $file), ++$count);
+                $node->setAttribute('id', $id);
+
+                if ($services = $this->getChildren($node, 'service')) {
+                    $definitions[$id] = array($services[0], $file, false);
+                    $services[0]->setAttribute('id', $id);
+
+                    // anonymous services are always private
+                    // we could not use the constant false here, because of XML parsing
+                    $services[0]->setAttribute('public', 'false');
+                }
+            }
+        }
+
+        // anonymous services "in the wild"
+        if (false !== $nodes = $xpath->query('//container:services/container:service[not(@id)]')) {
+            foreach ($nodes as $node) {
+                // give it a unique name
+                $id = sprintf('%s_%d', hash('sha256', $file), ++$count);
+                $node->setAttribute('id', $id);
+                $definitions[$id] = array($node, $file, true);
+            }
+        }
+
+        // resolve definitions
+        krsort($definitions);
+        foreach ($definitions as $id => list($domElement, $file, $wild)) {
+            if (null !== $definition = $this->parseDefinition($domElement, $file)) {
+                $this->container->setDefinition($id, $definition);
+            }
+
+            if (true === $wild) {
+                $tmpDomElement = new \DOMElement('_services', null, self::NS);
+                $domElement->parentNode->replaceChild($tmpDomElement, $domElement);
+                $tmpDomElement->setAttribute('id', $id);
+            } else {
+                $domElement->parentNode->removeChild($domElement);
+            }
+        }
+    }
+
+    /**
+     * Returns arguments as valid php types.
+     *
+     * @param \DOMElement $node
+     * @param string      $name
+     * @param bool        $lowercase
+     *
+     * @return mixed
+     */
+    private function getArgumentsAsPhp(\DOMElement $node, $name, $lowercase = true)
+    {
+        $arguments = array();
+        foreach ($this->getChildren($node, $name) as $arg) {
+            if ($arg->hasAttribute('name')) {
+                $arg->setAttribute('key', $arg->getAttribute('name'));
+            }
+
+            // this is used by DefinitionDecorator to overwrite a specific
+            // argument of the parent definition
+            if ($arg->hasAttribute('index')) {
+                $key = 'index_'.$arg->getAttribute('index');
+            } elseif (!$arg->hasAttribute('key')) {
+                // Append an empty argument, then fetch its key to overwrite it later
+                $arguments[] = null;
+                $keys = array_keys($arguments);
+                $key = array_pop($keys);
+            } else {
+                $key = $arg->getAttribute('key');
+
+                // parameter keys are case insensitive
+                if ('parameter' == $name && $lowercase) {
+                    $key = strtolower($key);
+                }
+            }
+
+            switch ($arg->getAttribute('type')) {
+                case 'service':
+                    $onInvalid = $arg->getAttribute('on-invalid');
+                    $invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE;
+                    if ('ignore' == $onInvalid) {
+                        $invalidBehavior = ContainerInterface::IGNORE_ON_INVALID_REFERENCE;
+                    } elseif ('null' == $onInvalid) {
+                        $invalidBehavior = ContainerInterface::NULL_ON_INVALID_REFERENCE;
+                    }
+
+                    $arguments[$key] = new Reference($arg->getAttribute('id'), $invalidBehavior);
+                    break;
+                case 'expression':
+                    $arguments[$key] = new Expression($arg->nodeValue);
+                    break;
+                case 'collection':
+                    $arguments[$key] = $this->getArgumentsAsPhp($arg, $name, false);
+                    break;
+                case 'string':
+                    $arguments[$key] = $arg->nodeValue;
+                    break;
+                case 'constant':
+                    $arguments[$key] = constant(trim($arg->nodeValue));
+                    break;
+                default:
+                    $arguments[$key] = XmlUtils::phpize($arg->nodeValue);
+            }
+        }
+
+        return $arguments;
+    }
+
+    /**
+     * Get child elements by name.
+     *
+     * @param \DOMNode $node
+     * @param mixed    $name
+     *
+     * @return array
+     */
+    private function getChildren(\DOMNode $node, $name)
+    {
+        $children = array();
+        foreach ($node->childNodes as $child) {
+            if ($child instanceof \DOMElement && $child->localName === $name && $child->namespaceURI === self::NS) {
+                $children[] = $child;
+            }
+        }
+
+        return $children;
+    }
+
+    /**
+     * Validates a documents XML schema.
+     *
+     * @param \DOMDocument $dom
+     *
+     * @return bool
+     *
+     * @throws RuntimeException When extension references a non-existent XSD file
+     */
+    public function validateSchema(\DOMDocument $dom)
+    {
+        $schemaLocations = array('http://symfony.com/schema/dic/services' => str_replace('\\', '/', __DIR__.'/schema/dic/services/services-1.0.xsd'));
+
+        if ($element = $dom->documentElement->getAttributeNS('http://www.w3.org/2001/XMLSchema-instance', 'schemaLocation')) {
+            $items = preg_split('/\s+/', $element);
+            for ($i = 0, $nb = count($items); $i < $nb; $i += 2) {
+                if (!$this->container->hasExtension($items[$i])) {
+                    continue;
+                }
+
+                if (($extension = $this->container->getExtension($items[$i])) && false !== $extension->getXsdValidationBasePath()) {
+                    $path = str_replace($extension->getNamespace(), str_replace('\\', '/', $extension->getXsdValidationBasePath()).'/', $items[$i + 1]);
+
+                    if (!is_file($path)) {
+                        throw new RuntimeException(sprintf('Extension "%s" references a non-existent XSD file "%s"', get_class($extension), $path));
+                    }
+
+                    $schemaLocations[$items[$i]] = $path;
+                }
+            }
+        }
+
+        $tmpfiles = array();
+        $imports = '';
+        foreach ($schemaLocations as $namespace => $location) {
+            $parts = explode('/', $location);
+            if (0 === stripos($location, 'phar://')) {
+                $tmpfile = tempnam(sys_get_temp_dir(), 'sf2');
+                if ($tmpfile) {
+                    copy($location, $tmpfile);
+                    $tmpfiles[] = $tmpfile;
+                    $parts = explode('/', str_replace('\\', '/', $tmpfile));
+                }
+            }
+            $drive = '\\' === DIRECTORY_SEPARATOR ? array_shift($parts).'/' : '';
+            $location = 'file:///'.$drive.implode('/', array_map('rawurlencode', $parts));
+
+            $imports .= sprintf('  <xsd:import namespace="%s" schemaLocation="%s" />'."\n", $namespace, $location);
+        }
+
+        $source = <<<EOF
+<?xml version="1.0" encoding="utf-8" ?>
+<xsd:schema xmlns="http://symfony.com/schema"
+    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+    targetNamespace="http://symfony.com/schema"
+    elementFormDefault="qualified">
+
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace"/>
+$imports
+</xsd:schema>
+EOF
+        ;
+
+        $disableEntities = libxml_disable_entity_loader(false);
+        $valid = @$dom->schemaValidateSource($source);
+        libxml_disable_entity_loader($disableEntities);
+
+        foreach ($tmpfiles as $tmpfile) {
+            @unlink($tmpfile);
+        }
+
+        return $valid;
+    }
+
+    /**
+     * Validates an alias.
+     *
+     * @param \DOMElement $alias
+     * @param string      $file
+     */
+    private function validateAlias(\DOMElement $alias, $file)
+    {
+        foreach ($alias->attributes as $name => $node) {
+            if (!in_array($name, array('alias', 'id', 'public'))) {
+                @trigger_error(sprintf('Using the attribute "%s" is deprecated for the service "%s" which is defined as an alias in "%s". Allowed attributes for service aliases are "alias", "id" and "public". The XmlFileLoader will raise an exception in Symfony 4.0, instead of silently ignoring unsupported attributes.', $name, $alias->getAttribute('id'), $file), E_USER_DEPRECATED);
+            }
+        }
+
+        foreach ($alias->childNodes as $child) {
+            if ($child instanceof \DOMElement && $child->namespaceURI === self::NS) {
+                @trigger_error(sprintf('Using the element "%s" is deprecated for the service "%s" which is defined as an alias in "%s". The XmlFileLoader will raise an exception in Symfony 4.0, instead of silently ignoring unsupported elements.', $child->localName, $alias->getAttribute('id'), $file), E_USER_DEPRECATED);
+            }
+        }
+    }
+
+    /**
+     * Validates an extension.
+     *
+     * @param \DOMDocument $dom
+     * @param string       $file
+     *
+     * @throws InvalidArgumentException When no extension is found corresponding to a tag
+     */
+    private function validateExtensions(\DOMDocument $dom, $file)
+    {
+        foreach ($dom->documentElement->childNodes as $node) {
+            if (!$node instanceof \DOMElement || 'http://symfony.com/schema/dic/services' === $node->namespaceURI) {
+                continue;
+            }
+
+            // can it be handled by an extension?
+            if (!$this->container->hasExtension($node->namespaceURI)) {
+                $extensionNamespaces = array_filter(array_map(function ($ext) { return $ext->getNamespace(); }, $this->container->getExtensions()));
+                throw new InvalidArgumentException(sprintf(
+                    'There is no extension able to load the configuration for "%s" (in %s). Looked for namespace "%s", found %s',
+                    $node->tagName,
+                    $file,
+                    $node->namespaceURI,
+                    $extensionNamespaces ? sprintf('"%s"', implode('", "', $extensionNamespaces)) : 'none'
+                ));
+            }
+        }
+    }
+
+    /**
+     * Loads from an extension.
+     *
+     * @param \DOMDocument $xml
+     */
+    private function loadFromExtensions(\DOMDocument $xml)
+    {
+        foreach ($xml->documentElement->childNodes as $node) {
+            if (!$node instanceof \DOMElement || $node->namespaceURI === self::NS) {
+                continue;
+            }
+
+            $values = static::convertDomElementToArray($node);
+            if (!is_array($values)) {
+                $values = array();
+            }
+
+            $this->container->loadFromExtension($node->namespaceURI, $values);
+        }
+    }
+
+    /**
+     * Converts a \DomElement object to a PHP array.
+     *
+     * The following rules applies during the conversion:
+     *
+     *  * Each tag is converted to a key value or an array
+     *    if there is more than one "value"
+     *
+     *  * The content of a tag is set under a "value" key (<foo>bar</foo>)
+     *    if the tag also has some nested tags
+     *
+     *  * The attributes are converted to keys (<foo foo="bar"/>)
+     *
+     *  * The nested-tags are converted to keys (<foo><foo>bar</foo></foo>)
+     *
+     * @param \DomElement $element A \DomElement instance
+     *
+     * @return array A PHP array
+     */
+    public static function convertDomElementToArray(\DOMElement $element)
+    {
+        return XmlUtils::convertDomElementToArray($element);
+    }
+}