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<?php |
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|
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namespace WindPressPackages\Hidehalo\Nanoid; |
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|
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class Client |
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{ |
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/** |
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* Random mode flags |
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* |
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* @const MODE_NORMAL 1 |
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* @const MODEL_DYNAMIC 2 |
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*/ |
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const MODE_NORMAL = 1; |
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const MODE_DYNAMIC = 2; |
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/** |
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* @param string $alphabet Symbols to be used in ID. |
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* @param integer $size number of symbols in ID. |
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*/ |
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protected $alphabet; |
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protected $size; |
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/** |
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* @var CoreInterface $core Core dynamic random |
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*/ |
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private $core; |
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/** |
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* @var GeneratorInterface $generator Random Btyes Generator |
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*/ |
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protected $generator; |
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/** |
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* Constructor of Client |
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* |
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* @codeCoverageIgnore |
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* @param integer $size |
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* @param GeneratorInterface $generator |
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*/ |
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public function __construct($size = 21, GeneratorInterface $generator = null) |
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{ |
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$this->size = $size > 0 ? $size : 21; |
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$this->generator = $generator ?: new Generator(); |
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$this->core = new Core(); |
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$this->alphabet = CoreInterface::SAFE_SYMBOLS; |
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} |
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/** |
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* Generate nanoid via optional modes |
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* |
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* @param integer $size |
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* @param integer $mode Client::MODE_NORMAL|Client::MODE_DYNAMIC |
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* @return string |
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*/ |
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public function generateId($size = 0, $mode = self::MODE_NORMAL) |
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{ |
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$size = $size > 0 ? $size : $this->size; |
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switch ($mode) { |
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case self::MODE_DYNAMIC: |
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return $this->core->random($this->generator, $size, $this->alphabet); |
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default: |
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return $this->normalRandom($size); |
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} |
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} |
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/** |
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* The original API of nanoid. Use it be careful, Please make sure |
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* you have been implements your custom GeneratorInterface as correctly. |
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* Otherwise use the build-in default random bytes generator |
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* |
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* @param GeneratorInterface $generator |
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* @param integer $size |
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* @param string $alphabet default CoreInterface::SAFE_SYMBOLS |
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* @return string |
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*/ |
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public function formattedId($alphabet, $size = 0, GeneratorInterface $generator = null) |
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{ |
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$alphabet = $alphabet ?: CoreInterface::SAFE_SYMBOLS; |
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$size = $size > 0 ? $size : $this->size; |
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$generator = $generator ?: $this->generator; |
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return $this->core->random($generator, $size, $alphabet); |
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} |
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/** |
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* Backwards-compatible method name. |
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* |
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* @param string $alphabet |
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* @param integer $size |
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* @param GeneratorInterface $generator |
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* |
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* @return string |
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* @since 1.0.0 |
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*/ |
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public function formatedId($alphabet, $size = 0, GeneratorInterface $generator = null) |
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{ |
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$size = $size > 0 ? $size : $this->size; |
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return $this->formattedId($alphabet, $size, $generator); |
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} |
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/** |
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* Generate secure URL-friendly unique ID. |
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* By default, ID will have 21 symbols to have same collisions probability |
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* as UUID v4. |
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* |
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* @see https://github.com/ai/nanoid/blob/master/non-secure/index.js#L19 |
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* @param integer $size |
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* @return string |
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*/ |
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private function normalRandom($size) |
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{ |
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$id = ''; |
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while (1 <= $size--) { |
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$rand = \mt_rand() / (\mt_getrandmax() + 1); |
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$id .= $this->alphabet[\intval($rand * 64)]; |
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} |
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return $id; |
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} |
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} |
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