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<?php |
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/** |
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* Trait implementation of string 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\Traits\Randomness\RandomnessTrait as RandomnessSpecification; |
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use \CryptoManana\Core\StringBuilder as StringBuilder; |
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/** |
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* Trait StringOutputTrait - Reusable implementation of `StringOutputInterface`. |
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* |
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* @see \CryptoManana\Core\Interfaces\Randomness\StringOutputInterface The abstract specification. |
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* |
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* @package CryptoManana\Core\Traits\Randomness |
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* |
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* @mixin RandomnessSpecification |
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*/ |
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trait StringOutputTrait |
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{ |
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/** |
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* Internal method for character map validation. |
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* |
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* @param array $charMap The character map array. |
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* |
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* @throws \Exception Validation errors. |
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*/ |
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protected function validateCharacterMap(array $charMap) |
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{ |
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foreach ($charMap as $char) { |
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if (!is_string($char)) { |
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throw new \InvalidArgumentException( |
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'The provided symbol map must contain only elements of type string.' |
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); |
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} elseif (StringBuilder::stringLength($char) != 1) { |
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throw new \LengthException( |
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'The provided symbol map\'s values must only be of 1 character length.' |
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); |
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} |
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} |
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if (count($charMap) < 2) { |
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throw new \LengthException( |
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'You must supply a set of at least 2 characters for the output string generation.' |
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); |
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} |
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} |
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/** |
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* Forcing the implementation of the software abstract randomness. |
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* |
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* {@internal Forcing the implementation of `AbstractRandomness`. }} |
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*/ |
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use RandomnessSpecification; |
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/** |
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* Generate a random digit character. |
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* |
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* @param bool $includeZero Flag for including the zero digit (default => true). |
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* |
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* @return string Randomly generated digit character. |
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* @throws \Exception Validation errors. |
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*/ |
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public function getDigit($includeZero = true) |
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{ |
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return ($includeZero) ? (string)$this->getInt(0, 9) : (string)$this->getInt(1, 9); |
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} |
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/** |
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* Generate a random english letter character. |
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* |
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* @param bool $caseSensitive Flag for enabling case sensitive generation (default => true). |
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* |
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* @return string Randomly generated english letter character. |
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* @throws \Exception Validation errors. |
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*/ |
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public function getLetter($caseSensitive = true) |
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{ |
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if ($caseSensitive) { |
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$upper = $this->getBool(); |
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$letterCode = $upper ? $this->getInt(65, 90) : $this->getInt(97, 122); |
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} else { |
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$letterCode = $this->getInt(97, 122); |
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} |
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return StringBuilder::getChr($letterCode); |
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} |
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/** |
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* Generate a random alphanumeric string. |
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* |
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* @param int $length The output string length (default => 1). |
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* @param bool $caseSensitive Flag for enabling case sensitive generation (default => true). |
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* |
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* @return string Randomly generated alphanumeric string. |
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* @throws \Exception Validation errors. |
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*/ |
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public function getAlphaNumeric($length = 1, $caseSensitive = true) |
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{ |
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$this->validatePositiveInteger($length); |
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$id = ''; |
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for ($i = 1; $i <= $length; $i++) { |
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if ($this->getBool()) { |
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$id .= $this->getLetter($caseSensitive); |
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} else { |
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$id .= $this->getDigit(true); |
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} |
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} |
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return $id; |
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} |
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/** |
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* Generate a random ASCII (American Standard Code) string containing only printable characters. |
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* |
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* @param int $length The output string length (default => 1). |
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* @param bool|int $includeSpace Flag for including the space character (default => true). |
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* |
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* @return string Randomly generated ASCII string. |
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* @throws \Exception Validation errors. |
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*/ |
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public function getAscii($length = 1, $includeSpace = false) |
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{ |
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$this->validatePositiveInteger($length); |
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$asciiString = ''; |
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$startFrom = ($includeSpace == true) ? 32 : 33; |
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for ($i = 1; $i <= $length; $i++) { |
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$asciiString .= StringBuilder::getChr($this->getInt($startFrom, 126)); |
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} |
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return $asciiString; |
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} |
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/** |
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* Generate a random string with custom characters. |
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* |
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* @param int $length The output string length (default => 1). |
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* @param array $characters The character map for the string generation (default => ASCII). |
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* |
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* @return string Randomly generated string using a custom character map. |
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* @throws \Exception Validation errors. |
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*/ |
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public function getString($length = 1, array $characters = []) |
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{ |
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if (empty($characters)) { |
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return $this->getAscii($length, true); |
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} else { |
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$this->validatePositiveInteger($length); |
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$this->validateCharacterMap($characters); |
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$passwordString = ''; |
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$lastIndex = count($characters) - 1; |
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for ($i = 1; $i <= $length; $i++) { |
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$passwordString .= $characters[$this->getInt(0, $lastIndex)]; |
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} |
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return $passwordString; |
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} |
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} |
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} |
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TonyKaravasilev /
CryptoManana
