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<?php |
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/** |
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* Trait implementation of unique string identifier format generation for generator services. |
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*/ |
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namespace CryptoManana\Core\Traits\Randomness; |
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use \CryptoManana\Core\StringBuilder as StringBuilder; |
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/** |
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* Trait IdentifierOutputTrait - Reusable implementation of `IdentifierOutputInterface`. |
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* |
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* @see \CryptoManana\Core\Interfaces\Randomness\IdentifierOutputInterface The abstract specification. |
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* |
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* @package CryptoManana\Core\Traits\Randomness |
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*/ |
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trait IdentifierOutputTrait |
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{ |
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/** |
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* Generate a random version 4 Globally Unique Identifier (GUID) standard string. |
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* |
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* Note: The identifier string uses 32 alphanumeric characters and 4 hyphens (optional). |
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* |
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* @param string $prefix Optional prefix for output strings (default => ''). |
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* @param bool $withDashes Flag for using dashes format (default => true). |
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* @param bool $upperCase Flag for using uppercase format (default => false). |
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* |
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* @return string Randomly generated GUID string representing a 128-bit number. |
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* @throws \Exception Validation errors. |
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*/ |
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public function getGloballyUniqueId($prefix = '', $withDashes = true, $upperCase = false) |
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{ |
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$tmp = $this->getBytes(16); |
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$tmp[6] = StringBuilder::getChr(StringBuilder::getOrd($tmp[6]) & 0x0f | 0x40); |
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$tmp[8] = StringBuilder::getChr(StringBuilder::getOrd($tmp[8]) & 0x3f | 0x80); |
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$id = vsprintf('%s%s-%s-%s-%s-%s%s%s', StringBuilder::stringSplit(bin2hex($tmp), 4)); |
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$id = ($withDashes) ? $id : StringBuilder::stringReplace('-', '', $id); |
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$id = ($upperCase) ? StringBuilder::stringToUpper($id) : $id; |
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return StringBuilder::stringFullTrimming($prefix) . $id; |
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} |
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/** |
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* Generate a strong Universally Unique Identifier (UUID) string in hexadecimal or alphanumeric format. |
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* |
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* Note: The identifier string is exactly 128 characters long. |
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* |
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* @param string $prefix Optional prefix for output strings (default => ''). |
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* @param bool $alphaNumeric Flag for switching to alphanumerical format (default => false). |
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* |
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* @return string Randomly generated strong hexadecimal/alphanumerical UUID string. |
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* @throws \Exception Validation errors. |
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*/ |
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public function getStrongUniqueId($prefix = '', $alphaNumeric = false) |
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{ |
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if ($alphaNumeric) { |
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$id = $this->getAlphaNumeric(128); |
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$id = $this->getBool() ? StringBuilder::stringReverse($id) : $id; |
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} else { |
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$id = hash_hmac( |
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'sha512', // exactly 128 chars output (1024-bit) |
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$this->getBytes(64), // 512-bit input |
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$this->getBytes(64) // 512-bit key |
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); |
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$id = StringBuilder::stringToUpper($id); |
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} |
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return StringBuilder::stringFullTrimming($prefix) . $id; |
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} |
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} |
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TonyKaravasilev /
CryptoManana
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