namespace Rapsys\UserBundle\Utils;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
class Slugger {
//The secret parameter
private $secret;
+ //The alpha array
+ private $alpha;
+
+ //The rev array
+ private $rev;
+
+ //The alpha array key number
+ private $count;
+
//The offset reduced from secret
private $offset;
//Retrieve secret and set offset from reduction
- public function __construct(\Symfony\Component\DependencyInjection\ContainerInterface $container) {
+ public function __construct(ContainerInterface $container) {
//Set secret
- $this->secret = $container->getParameter('secret');
+ $this->secret = $_SERVER['APP_SECRET'] ?? $container->getParameter('kernel.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
+ //TODO: set this as a parameter generated once in a command ?
+ $this->alpha = array_keys(array_flip(array_merge(
+ range('^', '[', -1),
+ range('V', 'Z'),
+ range('9', '7', -1),
+ range('L', 'O'),
+ range('f', 'a', -1),
+ range('_', '`'),
+ range('3', '0', -1),
+ range('E', 'H'),
+ range('v', 'r', -1),
+ range('+', '/'),
+ range('K', 'I', -1),
+ range('g', 'j'),
+ range('=', ':', -1),
+ range('>', '@'),
+ range('m', 'k', -1),
+ range('4', '6'),
+ range('*', '%', -1),
+ range('n', 'q'),
+ range('U', 'P', -1),
+ range(' ', '$'),
+ range('D', 'A', -1),
+ range('w', 'z'),
+ range('~', '!', -1)
+ )));
//Init rev array
- $rev = array_flip(array_merge(range('0', '9'), range('a', 'z'), range('A', 'Z'), range('!', '~')));
+ $this->count = count($rev = $this->rev = array_flip($this->alpha));
+
+ //Init split
+ $split = str_split($this->secret);
//Set offset
- $this->offset = array_reduce(str_split($this->secret), function ($res, $a) use ($rev) { return $res += $rev[$a]; }, count($this->secret)) % count($rev);
+ $this->offset = array_reduce($split, function ($res, $a) use ($rev) { return $res += $rev[$a]; }, count($split)) % $this->count;
}
//Short the string
- public function short($string) {
+ public function short(string $string): string {
//Return string
$ret = '';
- //Alphabet
- $alpha = array_merge(range('0', '9'), range('a', 'z'), range('A', 'Z'), range('!', '~'));
-
- //Reverse alphabet
- $rev = array_flip($alpha);
-
- //Number characters
- $count = count($alpha);
-
//Iterate on each character
- foreach(str_split($string) as $c) {
- if (isset($rev[$c]) && isset($alpha[($rev[$c]+$this->offset)%$count])) {
- $ret .= $alpha[($rev[$c]+$this->offset)%$count];
+ foreach(str_split($string) 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) % $this->count);
}
}
//Send result
- return str_replace(array('+','/'), array('-','_'), base64_encode($ret));
+ return str_replace(['+','/'], ['-','_'], base64_encode($ret));
}
//Unshort the string
- public function unshort($string) {
+ public function unshort(string $string): string {
//Return string
$ret = '';
- //Alphabet
- $alpha = array_merge(range('0', '9'), range('a', 'z'), range('A', 'Z'), range('!', '~'));
-
- //Reverse alphabet
- $rev = array_flip($alpha);
-
- //Number characters
- $count = count($alpha);
-
//Iterate on each character
- foreach(str_split(base64_decode(str_replace(array('-','_'), array('+','/'), $string))) as $c) {
- if (isset($rev[$c]) && isset($alpha[($rev[$c]-$this->offset+$count)%$count])) {
- $ret .= $alpha[($rev[$c]-$this->offset+$count)%$count];
- }
+ foreach(str_split(base64_decode(str_replace(['-','_'], ['+','/'], $string))) as $c) {
+ //XXX: Reverse map char to an other one
+ $ret .= $this->alpha[(ord($c) + $this->offset) % $this->count];
}
//Send result
}
//Crypt and base64uri encode string
- public function hash($string) {
- return str_replace(array('+','/'), array('-','_'), base64_encode(crypt($string, $this->secret)));
+ public function hash(string $string): string {
+ return str_replace(['+','/'], ['-','_'], base64_encode(crypt($string, $this->secret)));
}
//Convert string to safe slug
- function slug($string) {
- return preg_replace('/[\/_|+ -]+/', '-', strtolower(trim(preg_replace('/[^a-zA-Z0-9\/_|+ -]/', '', str_replace(array('\'', '"'), ' ', iconv('UTF-8', 'ASCII//TRANSLIT', $string))), '-')));
+ function slug(string $string): string {
+ //Use Transliterator if available
+ if (class_exists('Transliterator')) {
+ $trans = Transliterator::create('Any-Latin; Latin-ASCII; Lower()');
+ return preg_replace(['/[^a-zA-Z0-9]+/', '/(^-+|-+$)/'], ['-', ''], $trans->transliterate($string));
+ }
+ return preg_replace('/[\/_|+ -]+/', '-', strtolower(trim(preg_replace('/[^a-zA-Z0-9\/_|+ -]/', '', str_replace(['\'', '"'], ' ', iconv('UTF-8', 'ASCII//TRANSLIT', $string))), '-')));
}
-
}
Rapsys Git / userbundle / blobdiff