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<?php |
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/* |
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* This file is part of the KleijnWeb\SwaggerBundle package. |
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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 KleijnWeb\SwaggerBundle\Document; |
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use KleijnWeb\SwaggerBundle\Document\Exception\ResourceNotReadableException; |
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use KleijnWeb\SwaggerBundle\Document\Exception\InvalidReferenceException; |
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/** |
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* @author John Kleijn <[email protected]> |
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*/ |
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class RefResolver |
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{ |
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/** |
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* @var object |
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*/ |
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private $definition; |
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/** |
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* @var string |
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*/ |
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private $uri; |
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/** |
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* @var string |
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*/ |
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private $directory; |
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/** |
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* @var YamlParser |
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*/ |
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private $loader; |
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/** |
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* @param object $definition |
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* @param string $uri |
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* @param Loader $loader |
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*/ |
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public function __construct($definition, $uri, Loader $loader = null) |
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{ |
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$this->definition = $definition; |
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$this->uri = $uri; |
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$this->directory = dirname($this->uri); |
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$this->loader = $loader ?: new Loader(); |
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} |
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/** |
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* @return object |
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*/ |
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public function getDefinition() |
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{ |
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return $this->definition; |
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} |
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/** |
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* Resolve all references |
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* |
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* @return object |
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*/ |
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public function resolve() |
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{ |
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$this->resolveRecursively($this->definition); |
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return $this->definition; |
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} |
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/** |
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* Revert to original state |
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* |
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* @return object |
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*/ |
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public function unresolve() |
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{ |
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$this->unresolveRecursively($this->definition); |
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return $this->definition; |
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} |
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/** |
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* @param object|array $current |
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* @param object $document |
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* @param string $uri |
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* |
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* @throws InvalidReferenceException |
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* @throws ResourceNotReadableException |
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*/ |
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private function resolveRecursively(&$current, $document = null, $uri = null) |
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{ |
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$document = $document ?: $this->definition; |
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$uri = $uri ?: $this->uri; |
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if (is_array($current)) { |
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foreach ($current as &$value) { |
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$this->resolveRecursively($value, $document, $uri); |
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} |
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} elseif (is_object($current)) { |
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if (property_exists($current, '$ref')) { |
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$uri = $current->{'$ref'}; |
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if ('#' === $uri[0]) { |
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$current = $this->lookup($uri, $document); |
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$this->resolveRecursively($current, $document, $uri); |
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} else { |
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$uriSegs = $this->parseUri($uri); |
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$normalizedUri = $this->normalizeFileUri($uriSegs); |
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$externalDocument = $this->loadExternal($normalizedUri); |
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$current = $this->lookup($uriSegs['fragment'], $externalDocument, $normalizedUri); |
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$this->resolveRecursively($current, $externalDocument, $normalizedUri); |
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} |
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if (is_object($current)) { |
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$current->{'x-ref-id'} = $uri; |
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} |
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return; |
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} |
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foreach ($current as $propertyName => &$propertyValue) { |
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$this->resolveRecursively($propertyValue, $document, $uri); |
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} |
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} |
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} |
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/** |
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* @param object|array $current |
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* @param object|array $parent |
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* |
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* @return void |
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*/ |
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private function unresolveRecursively(&$current, &$parent = null) |
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{ |
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foreach ($current as $key => &$value) { |
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if ($value !== null && !is_scalar($value)) { |
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$this->unresolveRecursively($value, $current); |
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} |
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if ($key === 'x-ref-id') { |
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$parent = (object)['$ref' => $value]; |
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} |
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} |
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} |
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/** |
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* @param string $path |
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* @param object $document |
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* @param string $uri |
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* |
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* @return mixed |
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* @throws InvalidReferenceException |
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*/ |
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private function lookup($path, $document, $uri = null) |
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{ |
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$target = $this->lookupRecursively( |
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explode('/', trim($path, '/#')), |
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$document |
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); |
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if (!$target) { |
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throw new InvalidReferenceException( |
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"Target '$path' does not exist'" . ($uri ? " at '$uri''" : '') |
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); |
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} |
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return $target; |
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} |
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/** |
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* @param array $segments |
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* @param object $context |
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* |
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* @return mixed |
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*/ |
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private function lookupRecursively(array $segments, $context) |
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{ |
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$segment = str_replace(['~0', '~1'], ['~', '/'], array_shift($segments)); |
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if (property_exists($context, $segment)) { |
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if (!count($segments)) { |
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return $context->$segment; |
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} |
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return $this->lookupRecursively($segments, $context->$segment); |
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} |
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return null; |
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} |
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/** |
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* @param string $fileUrl |
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* |
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* @return object |
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*/ |
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private function loadExternal($fileUrl) |
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{ |
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return $this->loader->load($fileUrl); |
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} |
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/** |
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* @param array $uriSegs |
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* |
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* @return string |
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*/ |
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private function normalizeFileUri(array $uriSegs) |
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{ |
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$path = $uriSegs['path']; |
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$auth = !$uriSegs['user'] ? '' : "{$uriSegs['user']}:{$uriSegs['pass']}@"; |
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$query = !$uriSegs['query'] ? '' : "?{$uriSegs['query']}"; |
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$port = !$uriSegs['port'] ? '' : ":{$uriSegs['port']}"; |
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$host = !$uriSegs['host'] ? '' : "{$uriSegs['scheme']}://$auth{$uriSegs['host']}{$port}"; |
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if (substr($path, 0, 1) !== '/') { |
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$path = "$this->directory/$path"; |
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} |
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return "{$host}{$path}{$query}"; |
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} |
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/** |
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* @param string $uri |
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* |
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* @return array |
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*/ |
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private function parseUri($uri) |
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{ |
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$defaults = [ |
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'scheme' => '', |
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'host' => '', |
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'port' => '', |
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'user' => '', |
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'pass' => '', |
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'path' => '', |
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'query' => '', |
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'fragment' => '' |
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]; |
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if (0 === strpos($uri, 'file://')) { |
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// parse_url botches this up |
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preg_match('@file://(?P<path>[^#]*)(?P<fragment>#.*)?@', $uri, $matches); |
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return array_merge($defaults, array_intersect_key($matches, $defaults)); |
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} |
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return array_merge($defaults, array_intersect_key(parse_url($uri), $defaults)); |
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} |
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} |
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Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..