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<?php |
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|
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declare(strict_types=1); |
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|
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2018-2020 Spomky-Labs |
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* |
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* This software may be modified and distributed under the terms |
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* of the MIT license. See the LICENSE file for details. |
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*/ |
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|
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namespace WP_DEFENDER_VENDOR\CBOR; |
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|
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use InvalidArgumentException; |
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|
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abstract class Tag extends AbstractCBORObject |
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{ |
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private const MAJOR_TYPE = self::MAJOR_TYPE_TAG; |
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|
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/** |
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* @var string|null |
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*/ |
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protected $data; |
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|
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/** |
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* @var CBORObject |
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*/ |
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protected $object; |
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|
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public function __construct(int $additionalInformation, ?string $data, CBORObject $object) |
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{ |
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parent::__construct(self::MAJOR_TYPE, $additionalInformation); |
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$this->data = $data; |
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$this->object = $object; |
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} |
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|
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public function __toString(): string |
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{ |
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$result = parent::__toString(); |
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if ($this->data !== null) { |
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$result .= $this->data; |
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} |
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|
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return $result . $this->object; |
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} |
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|
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public function getData(): ?string |
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{ |
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return $this->data; |
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} |
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|
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abstract public static function getTagId(): int; |
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|
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abstract public static function createFromLoadedData( |
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int $additionalInformation, |
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?string $data, |
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CBORObject $object |
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): self; |
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|
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public function getValue(): CBORObject |
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{ |
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return $this->object; |
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} |
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|
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/** |
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* @return array{int, null|string} |
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*/ |
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protected static function determineComponents(int $tag): array |
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{ |
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switch (true) { |
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case $tag < 0: |
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throw new InvalidArgumentException('The value must be a positive integer.'); |
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case $tag < 24: |
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return [$tag, null]; |
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case $tag < 0xFF: |
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return [24, self::hex2bin(dechex($tag))]; |
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case $tag < 0xFFFF: |
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return [25, self::hex2bin(dechex($tag))]; |
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case $tag < 0xFFFFFFFF: |
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return [26, self::hex2bin(dechex($tag))]; |
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default: |
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throw new InvalidArgumentException( |
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'Out of range. Please use PositiveBigIntegerTag tag with ByteStringObject object instead.' |
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); |
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} |
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} |
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|
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private static function hex2bin(string $data): string |
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{ |
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$result = hex2bin($data); |
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if ($result === false) { |
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throw new InvalidArgumentException('Unable to convert the data'); |
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} |
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|
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return $result; |
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} |
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} |
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|
