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<?php |
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/** |
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* Abstraction for unkeyed hash objects like checksums and plain cryptographic hash functions. |
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*/ |
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namespace CryptoManana\Core\Abstractions\MessageDigestion; |
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use \CryptoManana\Core\Abstractions\MessageDigestion\AbstractHashAlgorithm as HashAlgorithm; |
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use \CryptoManana\Core\Interfaces\MessageDigestion\ObjectHashingInterface as ObjectHashing; |
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use \CryptoManana\Core\Interfaces\MessageDigestion\FileHashingInterface as FileHashing; |
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use \CryptoManana\Core\Traits\MessageDigestion\ObjectHashingTrait as HashObjects; |
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use \CryptoManana\Core\Traits\MessageDigestion\FileHashingTrait as HashFiles; |
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/** |
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* Class AbstractUnkeyedHashFunction - Abstraction for unkeyed hash classes. |
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* |
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* @package CryptoManana\Core\Abstractions\MessageDigestion |
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* |
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* @mixin HashObjects |
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* @mixin HashFiles |
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*/ |
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abstract class AbstractUnkeyedHashFunction extends HashAlgorithm implements ObjectHashing, FileHashing |
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{ |
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/** |
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* Object hashing capabilities. |
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* |
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* {@internal Reusable implementation of `ObjectHashingInterface`. }} |
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*/ |
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use HashObjects; |
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/** |
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* File hashing capabilities. |
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* |
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* {@internal Reusable implementation of `FileHashingInterface`. }} |
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*/ |
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use HashFiles; |
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/** |
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* The internal name of the algorithm. |
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*/ |
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const ALGORITHM_NAME = 'none'; |
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/** |
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* Flag to force native code polyfill realizations, if available. |
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* |
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* @var bool Flag to force native realizations. |
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*/ |
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protected $useNative = false; |
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/** |
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* Unkeyed hash algorithm constructor. |
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*/ |
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public function __construct() |
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{ |
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} |
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/** |
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* Calculates a hash value for the given data. |
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* |
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* @param string $data The input string. |
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* |
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* @return string The digest. |
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* @throws \Exception Validation errors. |
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*/ |
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public function hashData($data) |
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{ |
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if (!is_string($data)) { |
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throw new \InvalidArgumentException('The data for hashing must be a string or a binary string.'); |
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} |
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$data = $this->addSaltString($data); |
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$digest = hash( |
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static::ALGORITHM_NAME, |
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$data, |
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($this->digestFormat === self::DIGEST_OUTPUT_RAW) |
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); |
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$digest = $this->changeOutputFormat($digest); |
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return $digest; |
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} |
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/** |
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* Calculates a hash value for the content of the given filename and location. |
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* |
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* @param string $filename The full path and name of the file for hashing. |
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* |
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* @return string The digest. |
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* @throws \Exception Validation errors. |
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*/ |
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public function hashFile($filename) |
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{ |
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if (!is_string($filename)) { |
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throw new \InvalidArgumentException('The file path must be of type string.'); |
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} |
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$this->validateFileNamePath($filename); |
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$useFileSalting = $this->isFileSaltingForcingNativeHashing(); |
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if ($this->useNative || $useFileSalting) { |
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$oldSalt = $this->salt; |
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$oldMode = $this->saltingMode; |
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$this->salt = ($useFileSalting) ? $this->salt : ''; |
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$this->saltingMode = ($useFileSalting) ? $this->saltingMode : self::SALTING_MODE_NONE; |
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$digest = $this->hashData(file_get_contents($filename)); |
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$this->setSalt($oldSalt)->setSaltingMode($oldMode); |
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} else { |
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$digest = hash_file( |
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static::ALGORITHM_NAME, |
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$filename, |
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($this->digestFormat === self::DIGEST_OUTPUT_RAW) |
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); |
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$digest = $this->changeOutputFormat($digest); |
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} |
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return $digest; |
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} |
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/** |
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* Get debug information for the class instance. |
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* |
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* @return array Debug information. |
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*/ |
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public function __debugInfo() |
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{ |
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return [ |
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'standard' => static::ALGORITHM_NAME, |
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'type' => 'unkeyed digestion or checksum', |
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'salt' => $this->salt, |
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'mode' => $this->saltingMode, |
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]; |
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} |
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} |
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TonyKaravasilev /
CryptoManana
