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<?php |
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declare(strict_types=1); |
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namespace VGirol\JsonApiStructure\Constraint; |
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use VGirol\JsonApiStructure\Messages; |
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class MemberName extends Constraint |
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{ |
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/** |
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* @var bool |
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*/ |
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private $strict; |
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/** |
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* Class constructor. |
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* |
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* @param boolean $strict If true, unsafe characters are not allowed when checking members name. |
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*/ |
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public function __construct(bool $strict) |
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{ |
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$this->strict = $strict; |
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} |
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/** |
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* Returns a string representation of the constraint. |
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*/ |
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public function default(): string |
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{ |
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return Messages::MEMBER_NAME_NOT_VALID; |
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} |
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/** |
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* Evaluates the constraint for parameter $json. Returns true if the constraint is met, false otherwise. |
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* |
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* Asserts that a member name is valid. |
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* |
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* It will do the following checks : |
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* 1) asserts that the name is a string with at least one character. |
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* 2) asserts that the name has only allowed characters. |
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* 3) asserts that it starts and ends with a globally allowed character. |
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* |
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* @link https://jsonapi.org/format/#document-member-names-allowed-characters |
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* |
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* @param mixed $name Value or object to evaluate |
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* |
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* @return bool |
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* @throws \VGirol\JsonApiStructure\Exception\ValidationException |
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*/ |
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protected function handle($name): bool |
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{ |
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if (!\is_string($name)) { |
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$this->setFailureMessage(Messages::MEMBER_NAME_IS_NOT_STRING); |
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return false; |
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} |
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if (\strlen($name) < 1) { |
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$this->setFailureMessage(Messages::MEMBER_NAME_IS_TOO_SHORT); |
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return false; |
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} |
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// Globally allowed characters |
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$globally = '\x{0030}-\x{0039}\x{0041}-\x{005A}\x{0061}-\x{007A}'; |
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$globallyNotSafe = '\x{0080}-\x{FFFF}'; |
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// Allowed characters |
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$allowed = '\x{002D}\x{005F}'; |
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$allowedNotSafe = '\x{0020}'; |
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$regex = "/[^{$globally}{$globallyNotSafe}{$allowed}{$allowedNotSafe}]+/u"; |
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$safeRegex = "/[^{$globally}{$allowed}]+/u"; |
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if (\preg_match($this->strict ? $safeRegex : $regex, $name) > 0) { |
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$this->setFailureMessage(Messages::MEMBER_NAME_HAVE_RESERVED_CHARACTERS); |
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return false; |
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} |
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$regex = "/^[{$globally}{$globallyNotSafe}]{1}(?:.*[{$globally}{$globallyNotSafe}]{1})?$/u"; |
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$safeRegex = "/^[{$globally}]{1}(?:.*[{$globally}]{1})?$/u"; |
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if (\preg_match($this->strict ? $safeRegex : $regex, $name) == 0) { |
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$this->setFailureMessage(Messages::MEMBER_NAME_START_AND_END_WITH_ALLOWED_CHARACTERS); |
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return false; |
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} |
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return true; |
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} |
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} |
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VGirol /
JsonApi-Structure
