diff vendor/symfony/routing/Loader/YamlFileLoader.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/routing/Loader/YamlFileLoader.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,207 @@
+<?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\Routing\Loader;
+
+use Symfony\Component\Routing\RouteCollection;
+use Symfony\Component\Routing\Route;
+use Symfony\Component\Config\Resource\FileResource;
+use Symfony\Component\Yaml\Exception\ParseException;
+use Symfony\Component\Yaml\Parser as YamlParser;
+use Symfony\Component\Config\Loader\FileLoader;
+
+/**
+ * YamlFileLoader loads Yaml routing files.
+ *
+ * @author Fabien Potencier <[e-mail]>
+ * @author Tobias Schultze <http://tobion.de>
+ */
+class YamlFileLoader extends FileLoader
+{
+    private static $availableKeys = array(
+        'resource', 'type', 'prefix', 'path', 'host', 'schemes', 'methods', 'defaults', 'requirements', 'options', 'condition',
+    );
+    private $yamlParser;
+
+    /**
+     * Loads a Yaml file.
+     *
+     * @param string      $file A Yaml file path
+     * @param string|null $type The resource type
+     *
+     * @return RouteCollection A RouteCollection instance
+     *
+     * @throws \InvalidArgumentException When a route can't be parsed because YAML is invalid
+     */
+    public function load($file, $type = null)
+    {
+        $path = $this->locator->locate($file);
+
+        if (!stream_is_local($path)) {
+            throw new \InvalidArgumentException(sprintf('This is not a local file "%s".', $path));
+        }
+
+        if (!file_exists($path)) {
+            throw new \InvalidArgumentException(sprintf('File "%s" not found.', $path));
+        }
+
+        if (null === $this->yamlParser) {
+            $this->yamlParser = new YamlParser();
+        }
+
+        try {
+            $parsedConfig = $this->yamlParser->parse(file_get_contents($path));
+        } catch (ParseException $e) {
+            throw new \InvalidArgumentException(sprintf('The file "%s" does not contain valid YAML.', $path), 0, $e);
+        }
+
+        $collection = new RouteCollection();
+        $collection->addResource(new FileResource($path));
+
+        // empty file
+        if (null === $parsedConfig) {
+            return $collection;
+        }
+
+        // not an array
+        if (!is_array($parsedConfig)) {
+            throw new \InvalidArgumentException(sprintf('The file "%s" must contain a YAML array.', $path));
+        }
+
+        foreach ($parsedConfig as $name => $config) {
+            $this->validate($config, $name, $path);
+
+            if (isset($config['resource'])) {
+                $this->parseImport($collection, $config, $path, $file);
+            } else {
+                $this->parseRoute($collection, $name, $config, $path);
+            }
+        }
+
+        return $collection;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supports($resource, $type = null)
+    {
+        return is_string($resource) && in_array(pathinfo($resource, PATHINFO_EXTENSION), array('yml', 'yaml'), true) && (!$type || 'yaml' === $type);
+    }
+
+    /**
+     * Parses a route and adds it to the RouteCollection.
+     *
+     * @param RouteCollection $collection A RouteCollection instance
+     * @param string          $name       Route name
+     * @param array           $config     Route definition
+     * @param string          $path       Full path of the YAML file being processed
+     */
+    protected function parseRoute(RouteCollection $collection, $name, array $config, $path)
+    {
+        $defaults = isset($config['defaults']) ? $config['defaults'] : array();
+        $requirements = isset($config['requirements']) ? $config['requirements'] : array();
+        $options = isset($config['options']) ? $config['options'] : array();
+        $host = isset($config['host']) ? $config['host'] : '';
+        $schemes = isset($config['schemes']) ? $config['schemes'] : array();
+        $methods = isset($config['methods']) ? $config['methods'] : array();
+        $condition = isset($config['condition']) ? $config['condition'] : null;
+
+        $route = new Route($config['path'], $defaults, $requirements, $options, $host, $schemes, $methods, $condition);
+
+        $collection->add($name, $route);
+    }
+
+    /**
+     * Parses an import and adds the routes in the resource to the RouteCollection.
+     *
+     * @param RouteCollection $collection A RouteCollection instance
+     * @param array           $config     Route definition
+     * @param string          $path       Full path of the YAML file being processed
+     * @param string          $file       Loaded file name
+     */
+    protected function parseImport(RouteCollection $collection, array $config, $path, $file)
+    {
+        $type = isset($config['type']) ? $config['type'] : null;
+        $prefix = isset($config['prefix']) ? $config['prefix'] : '';
+        $defaults = isset($config['defaults']) ? $config['defaults'] : array();
+        $requirements = isset($config['requirements']) ? $config['requirements'] : array();
+        $options = isset($config['options']) ? $config['options'] : array();
+        $host = isset($config['host']) ? $config['host'] : null;
+        $condition = isset($config['condition']) ? $config['condition'] : null;
+        $schemes = isset($config['schemes']) ? $config['schemes'] : null;
+        $methods = isset($config['methods']) ? $config['methods'] : null;
+
+        $this->setCurrentDir(dirname($path));
+
+        $subCollection = $this->import($config['resource'], $type, false, $file);
+        /* @var $subCollection RouteCollection */
+        $subCollection->addPrefix($prefix);
+        if (null !== $host) {
+            $subCollection->setHost($host);
+        }
+        if (null !== $condition) {
+            $subCollection->setCondition($condition);
+        }
+        if (null !== $schemes) {
+            $subCollection->setSchemes($schemes);
+        }
+        if (null !== $methods) {
+            $subCollection->setMethods($methods);
+        }
+        $subCollection->addDefaults($defaults);
+        $subCollection->addRequirements($requirements);
+        $subCollection->addOptions($options);
+
+        $collection->addCollection($subCollection);
+    }
+
+    /**
+     * Validates the route configuration.
+     *
+     * @param array  $config A resource config
+     * @param string $name   The config key
+     * @param string $path   The loaded file path
+     *
+     * @throws \InvalidArgumentException If one of the provided config keys is not supported,
+     *                                   something is missing or the combination is nonsense
+     */
+    protected function validate($config, $name, $path)
+    {
+        if (!is_array($config)) {
+            throw new \InvalidArgumentException(sprintf('The definition of "%s" in "%s" must be a YAML array.', $name, $path));
+        }
+        if ($extraKeys = array_diff(array_keys($config), self::$availableKeys)) {
+            throw new \InvalidArgumentException(sprintf(
+                'The routing file "%s" contains unsupported keys for "%s": "%s". Expected one of: "%s".',
+                $path, $name, implode('", "', $extraKeys), implode('", "', self::$availableKeys)
+            ));
+        }
+        if (isset($config['resource']) && isset($config['path'])) {
+            throw new \InvalidArgumentException(sprintf(
+                'The routing file "%s" must not specify both the "resource" key and the "path" key for "%s". Choose between an import and a route definition.',
+                $path, $name
+            ));
+        }
+        if (!isset($config['resource']) && isset($config['type'])) {
+            throw new \InvalidArgumentException(sprintf(
+                'The "type" key for the route definition "%s" in "%s" is unsupported. It is only available for imports in combination with the "resource" key.',
+                $name, $path
+            ));
+        }
+        if (!isset($config['resource']) && !isset($config['path'])) {
+            throw new \InvalidArgumentException(sprintf(
+                'You must define a "path" for the route "%s" in file "%s".',
+                $name, $path
+            ));
+        }
+    }
+}