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<?php |
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declare(strict_types = 1); |
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namespace Sop\JWX\JWK; |
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use Sop\JWX\JWK\Parameter\JWKParameter; |
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use Sop\JWX\JWK\Parameter\KeyIDParameter; |
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/** |
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* Class to represent JWK structure. |
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* |
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* @see https://tools.ietf.org/html/rfc7517#section-4 |
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*/ |
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class JWK implements \Countable, \IteratorAggregate |
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{ |
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use TypedJWK; |
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/** |
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* Parameters. |
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* |
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* @var JWKParameter[] |
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*/ |
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protected $_parameters; |
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/** |
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* Constructor. |
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* |
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* @param JWKParameter ...$params |
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*/ |
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public function __construct(JWKParameter ...$params) |
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{ |
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$this->_parameters = []; |
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foreach ($params as $param) { |
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$this->_parameters[$param->name()] = $param; |
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} |
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} |
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/** |
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* Initialize from an array representing a JSON object. |
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*/ |
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public static function fromArray(array $members): self |
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{ |
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$params = []; |
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foreach ($members as $name => $value) { |
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$params[] = JWKParameter::fromNameAndValue($name, $value); |
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} |
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return new static(...$params); |
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} |
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/** |
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* Initialize from a JSON string. |
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* |
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* @throws \UnexpectedValueException |
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*/ |
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public static function fromJSON(string $json): self |
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{ |
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$members = json_decode($json, true, 32, JSON_BIGINT_AS_STRING); |
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if (!is_array($members)) { |
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throw new \UnexpectedValueException('Invalid JSON.'); |
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} |
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return static::fromArray($members); |
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} |
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/** |
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* Initialize from another JWK. |
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* |
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* Allows casting to subclass by late static binding. |
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*/ |
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public static function fromJWK(JWK $jwk): self |
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{ |
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return new static(...array_values($jwk->_parameters)); |
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} |
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/** |
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* Get self with parameters added. |
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* |
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* @param JWKParameter ...$params |
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*/ |
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public function withParameters(JWKParameter ...$params): self |
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{ |
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$obj = clone $this; |
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foreach ($params as $param) { |
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$obj->_parameters[$param->name()] = $param; |
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} |
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return $obj; |
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} |
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/** |
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* Get all parameters. |
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* |
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* @return JWKParameter[] |
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*/ |
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public function parameters(): array |
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{ |
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return array_values($this->_parameters); |
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} |
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/** |
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* Get self with given key ID added to parameters. |
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* |
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* @param string $id Key ID as a string |
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*/ |
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public function withKeyID(string $id): self |
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{ |
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return $this->withParameters(new KeyIDParameter($id)); |
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} |
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/** |
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* Whether parameters are present. |
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* |
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* Returns false if any of the given parameters is not set. |
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* |
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* @param string ...$names Parameter names |
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*/ |
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public function has(string ...$names): bool |
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{ |
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foreach ($names as $name) { |
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if (!isset($this->_parameters[$name])) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* Get a parameter. |
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* |
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* @param string $name Parameter name |
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* |
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* @throws \LogicException |
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*/ |
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public function get(string $name): JWKParameter |
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{ |
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if (!$this->has($name)) { |
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throw new \LogicException("Parameter {$name} doesn't exists."); |
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} |
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return $this->_parameters[$name]; |
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} |
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/** |
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* Convert to array. |
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* |
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* @return array Parameter values keyed by parameter names |
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*/ |
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public function toArray(): array |
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{ |
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$a = []; |
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foreach ($this->_parameters as $param) { |
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$a[$param->name()] = $param->value(); |
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} |
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return $a; |
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} |
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/** |
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* Convert to JSON. |
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*/ |
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2 |
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public function toJSON(): string |
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{ |
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$data = $this->toArray(); |
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if (empty($data)) { |
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return ''; |
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} |
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return json_encode((object) $data, JSON_UNESCAPED_SLASHES); |
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} |
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/** |
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* Get the number of parameters. |
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* |
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* @see \Countable::count() |
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*/ |
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public function count(): int |
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{ |
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1 |
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return count($this->_parameters); |
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} |
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/** |
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* Get iterator for the parameters. |
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* |
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* @see \IteratorAggregate::getIterator() |
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*/ |
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public function getIterator(): \ArrayIterator |
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{ |
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return new \ArrayIterator($this->_parameters); |
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} |
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} |
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sop /
jwx
