69 lines
2.1 KiB
PHP
69 lines
2.1 KiB
PHP
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<?php
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namespace nur\passwd;
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abstract class AbstractGenerator {
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const NB_BLOCKS = 4;
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const NB_PUNCTS = 2;
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const CONSONNES = "bcdfghjklmnpqrstvwxz";
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const VOYELLES = "aeiuoy";
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const PUNCTS = "+-*/=!@?:#";
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const MAPPINGS = [
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# éviter certaines combinaisons potentiellement gênantes
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"sexe" => "xese",
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"sexy" => "xyse",
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"suce" => "cesu",
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"bite" => "tebi",
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"cabo" => "boca",
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"pipe" => "pepi",
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"cocu" => "cuco",
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"pute" => "tepu",
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];
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function __construct(?int $nbBlocks=null, ?int $nbPuncts=null) {
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if ($nbBlocks === null) $nbBlocks = static::NB_BLOCKS;
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if ($nbPuncts === null) $nbPuncts = static::NB_PUNCTS;
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if ($nbBlocks < 1) $nbBlocks = 1;
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if ($nbPuncts > $nbBlocks) $nbPuncts = $nbBlocks;
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$this->nbBlocks = $nbBlocks;
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$this->nbPuncts = $nbPuncts;
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}
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/** @var int */
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protected $nbBlocks, $nbPuncts;
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function generate(?int $nbBlocks=null, ?int $nbPuncts=null, ?int $seed=null): string {
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if ($nbBlocks === null) $nbBlocks = $this->nbBlocks;
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if ($nbPuncts === null) $nbPuncts = $this->nbPuncts;
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if ($seed !== null) mt_srand($seed);
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$maxc = strlen(self::CONSONNES) - 1;
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$maxv = strlen(self::VOYELLES) - 1;
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$maxp = strlen(self::PUNCTS) - 1;
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$size = $nbBlocks * 2;
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$sindex = 0;
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$syllabes = [];
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while ($sindex < $size) {
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$lindex = count($syllabes) - 1;
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do {
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$consonne = self::CONSONNES[mt_rand(0, $maxc)];
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$voyelle = self::VOYELLES[mt_rand(0, $maxv)];
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$syllabe = $consonne.$voyelle;
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# pas deux fois la même syllabe de suite
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$repetition = ($lindex >= 0 && $syllabes[$lindex] == $syllabe)
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|| ($lindex >= 1 && $syllabes[$lindex - 1] == $syllabe);
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} while ($repetition);
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$syllabes[] = $syllabe;
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$sindex++;
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if ($nbPuncts > 0 && $sindex % 2 == 0 && mt_rand() % 2 == 0) {
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$syllabes[] = self::PUNCTS[mt_rand(0, $maxp)];
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$nbPuncts--;
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}
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}
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$password = implode("", $syllabes);
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foreach (self::MAPPINGS as $from => $to) {
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$password = str_replace($from, $to, $password);
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}
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return $password;
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}
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}
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