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<?php |
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/** |
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* @author Todd Burry <[email protected]> |
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* @copyright 2009-2018 Vanilla Forums Inc. |
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* @license MIT |
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*/ |
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namespace Garden\Schema; |
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/** |
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* A schema `$ref` lookup that searches arrays. |
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* |
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* @see https://swagger.io/docs/specification/using-ref/ |
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*/ |
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class ArrayRefLookup { |
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/** |
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* @var array|\ArrayAccess |
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*/ |
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private $array; |
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/** |
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* ArrayRefLookup constructor. |
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* |
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* @param array|\ArrayAccess $array The array that is searched. |
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*/ |
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public function __construct($array) { |
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$this->array = $array; |
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} |
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/** |
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* Lookup a schema based on a JSON ref. |
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* |
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* @param string $ref A valid JSON ref. |
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* @return mixed|null Returns the value at the reference or **null** if the reference isn't found. |
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* @see https://swagger.io/docs/specification/using-ref/ |
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*/ |
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public function __invoke(string $ref) { |
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$urlParts = parse_url($ref); |
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if (!empty($urlParts['host']) || !empty($urlParts['path'])) { |
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throw new \InvalidArgumentException("Only local schema references are supported. ($ref)", 400); |
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} |
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$fragment = $urlParts['fragment'] ?? ''; |
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if (strlen($fragment) === 0 || $fragment[0] !== '/') { |
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throw new \InvalidArgumentException("Relative schema references are not supported. ($ref)", 400); |
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} |
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if ($fragment === '/') { |
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return $this->array; |
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} |
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$parts = Schema::explodeRef(substr($fragment, 1)); |
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$value = $this->array; |
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foreach ($parts as $key) { |
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if (!is_string($value) && isset($value[$key])) { |
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$value = $value[$key]; |
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} else { |
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return null; |
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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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* Get the array. |
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* |
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* @return array|\ArrayAccess Returns the array. |
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*/ |
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public function getArray() { |
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return $this->array; |
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} |
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/** |
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* Set the array. |
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* |
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* @param array|\ArrayAccess $array |
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* @return $this |
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*/ |
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public function setArray($array) { |
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$this->array = $array; |
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return $this; |
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} |
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} |
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vanilla /
garden-schema
