namespace Rapsys\PackBundle\Util;
/**
- * Helps manage string conversions
+ * Manages string conversions
*/
class SluggerUtil {
- //The secret parameter
- private $secret;
-
- //The alpha array
- private $alpha;
+ /**
+ * The alpha array
+ */
+ protected array $alpha;
- //The rev array
- private $rev;
+ /**
+ * The rev array
+ */
+ protected array $rev;
- //The alpha array key number
- private $count;
+ /**
+ * The alpha array key number
+ */
+ protected int $count;
- //The offset reduced from secret
- private $offset;
+ /**
+ * The offset reduced from secret
+ */
+ protected int $offset;
/**
- * Creates a new slugger util
+ * Construct slugger util
*
- * @todo Add a command to generate alpha array or generate it on first run with cache storage ?
- * @todo Use Cache like in calendar controller through FilesystemAdapter
+ * Run "bin/console rapsyspack:range" to generate RAPSYSPACK_RANGE="ayl[...]z9w" range in .env.local
+ *
+ * @todo Use Cache like in calendar controller through FilesystemAdapter ?
*
* @param string $secret The secret string
*/
- public function __construct(string $secret) {
- //Set secret
- $this->secret = $secret;
-
- //Pseudo-random alphabet
- //XXX: use array flip and keys to workaround php "smart" that cast range('0', '9') as int instead of string
- //XXX: The key count mismatch, count(alpha)>count(rev), resulted in a data corruption due to duplicate numeric values
- $this->alpha = array_keys(array_flip(array_merge(
- range('^', '[', -1),
- range('V', 'Z'),
- range('9', '7', -1),
- range('L', 'O'),
- range('f', 'a', -1),
- range('_', '`'),
- range('3', '0', -1),
- range('E', 'H'),
- range('v', 'r', -1),
- range('+', '/'),
- range('K', 'I', -1),
- range('g', 'j'),
- range('=', ':', -1),
- range('>', '@'),
- range('m', 'k', -1),
- range('4', '6'),
- range('*', '%', -1),
- range('n', 'q'),
- range('U', 'P', -1),
- range(' ', '$'),
- range('D', 'A', -1),
- range('w', 'z'),
- range('~', '!', -1)
- )));
+ public function __construct(protected string $secret) {
+ //Without range
+ if (empty($range = $_ENV['RAPSYSPACK_RANGE']) || $range === 'Ch4ng3m3!') {
+ //Protect member variable setup
+ return;
+ }
+
+ /**
+ * Get pseuto-random alphabet by splitting range string
+ * TODO: see required range by json_encode result and short input (0->255 ???)
+ * XXX: The key count mismatch, count(alpha)>count(rev), resulted in a data corruption due to duplicate numeric values
+ */
+ $this->alpha = str_split($range);
//Init rev array
$this->count = count($rev = $this->rev = array_flip($this->alpha));
$split = str_split($this->secret);
//Set offset
+ //TODO: protect undefined index ?
$this->offset = array_reduce($split, function ($res, $a) use ($rev) { return $res += $rev[$a]; }, count($split)) % $this->count;
}
/**
* Crypt and base64uri encode string
*
- * @param string $data The data string
+ * @param array|string $data The data string
* @return string The hashed data
*/
- public function hash(string $data): string {
+ public function hash(array|string $data): string {
+ //With array
+ if (is_array($data)) {
+ //Json encode array
+ $data = json_encode($data);
+ }
+
//Return hashed data
//XXX: we use hash_hmac with md5 hash
//XXX: crypt was dropped because it provided identical signature for string starting with same pattern
*/
public function serialize(array $data): string {
//Return shorted serialized data
- return $this->short(serialize($data));
+ //XXX: dropped serialize use to prevent short function from dropping utf-8 characters
+ return $this->short(json_encode($data));
}
/**
//Return string
$ret = '';
- //Iterate on each character
- foreach(str_split($data) as $k => $c) {
- if (isset($this->rev[$c]) && isset($this->alpha[($this->rev[$c]+$this->offset)%$this->count])) {
- //XXX: Remap char to an other one
- $ret .= chr(($this->rev[$c] - $this->offset + $this->count) % $this->count);
+ //With data
+ if (!empty($data)) {
+ //Iterate on each character
+ foreach(str_split($data) as $k => $c) {
+ if (isset($this->rev[$c]) && isset($this->alpha[($this->rev[$c]+$this->offset)%$this->count])) {
+ //XXX: Remap char to an other one
+ $ret .= chr(($this->rev[$c] - $this->offset + $this->count) % $this->count);
+ } else {
+ throw new \RuntimeException(sprintf('Unable to retrieve character: %c', $c));
+ }
}
}
//Send result
- return str_replace(['+','/'], ['-','_'], base64_encode($ret));
+ return str_replace(['+','/','='], ['-','_',''], base64_encode($ret));
}
/**
* Convert string to safe slug
*
* @param string $data The data string
- * @return string The slugged data
+ * @param string $separator The separator string
+ * @return ?string The slugged data
*/
- function slug(string $data): string {
+ function slug(?string $data, string $separator = '-'): ?string {
+ //With null
+ if ($data === null) {
+ //Return null
+ return $data;
+ }
+
//Use Transliterator if available
if (class_exists('Transliterator')) {
//Convert from any to latin, then to ascii and lowercase
$trans = \Transliterator::create('Any-Latin; Latin-ASCII; Lower()');
//Replace every non alphanumeric character by dash then trim dash
- return trim(preg_replace('/[^a-zA-Z0-9]+/', '-', $trans->transliterate($data)), '-');
+ return trim(preg_replace('/[^a-zA-Z0-9]+/', $separator, $trans->transliterate($data)), $separator);
}
+
//Convert from utf-8 to ascii, replace quotes with space, remove non alphanumericseparator, replace separator with dash and trim dash
- return trim(preg_replace('/[\/_|+ -]+/', '-', strtolower(preg_replace('/[^a-zA-Z0-9\/_|+ -]/', '', str_replace(['\'', '"'], ' ', iconv('UTF-8', 'ASCII//TRANSLIT', $data))))), '-');
+ return trim(preg_replace('/[\/_|+ -]+/', $separator, strtolower(preg_replace('/[^a-zA-Z0-9\/_|+ -]/', '', str_replace(['\'', '"'], ' ', iconv('UTF-8', 'ASCII//TRANSLIT', $data))))), $separator);
+ }
+
+ /**
+ * Convert string to latin
+ *
+ * @param string $data The data string
+ * @return ?string The slugged data
+ */
+ function latin(?string $data): ?string {
+ //With null
+ if ($data === null) {
+ //Return null
+ return $data;
+ }
+
+ //Use Transliterator if available
+ if (class_exists('Transliterator')) {
+ //Convert from any to latin, then to ascii and lowercase
+ $trans = \Transliterator::create('Any-Latin; Latin-ASCII');
+ //Replace every non alphanumeric character by dash then trim dash
+ return trim($trans->transliterate($data));
+ }
+
+ //Convert from utf-8 to ascii
+ return trim(iconv('UTF-8', 'ASCII//TRANSLIT', $data));
}
/**
*/
public function unserialize(string $data): array {
//Return unshorted unserialized string
- return unserialize($this->unshort($data));
+ return json_decode($this->unshort($data), true);
}
/**
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