/**
* Creates a new secret string given base32-encoded bytes
*
* @param string|util.Secret|security.SecureString $arg
* @throws lang.FormatException
*/
public function __construct($arg)
{
static $table = ['2' => 0x1a, '3' => 0x1b, '4' => 0x1c, '5' => 0x1d, '6' => 0x1e, '7' => 0x1f, 'A' => 0x0, 'B' => 0x1, 'C' => 0x2, 'D' => 0x3, 'E' => 0x4, 'F' => 0x5, 'G' => 0x6, 'H' => 0x7, 'I' => 0x8, 'J' => 0x9, 'K' => 0xa, 'L' => 0xb, 'M' => 0xc, 'N' => 0xd, 'O' => 0xe, 'P' => 0xf, 'Q' => 0x10, 'R' => 0x11, 'S' => 0x12, 'T' => 0x13, 'U' => 0x14, 'V' => 0x15, 'W' => 0x16, 'X' => 0x17, 'Y' => 0x18, 'Z' => 0x19, 'a' => 0x0, 'b' => 0x1, 'c' => 0x2, 'd' => 0x3, 'e' => 0x4, 'f' => 0x5, 'g' => 0x6, 'h' => 0x7, 'i' => 0x8, 'j' => 0x9, 'k' => 0xa, 'l' => 0xb, 'm' => 0xc, 'n' => 0xd, 'o' => 0xe, 'p' => 0xf, 'q' => 0x10, 'r' => 0x11, 's' => 0x12, 't' => 0x13, 'u' => 0x14, 'v' => 0x15, 'w' => 0x16, 'x' => 0x17, 'y' => 0x18, 'z' => 0x19, '0' => 0xe, '1' => 0xb, '8' => 0x1];
if ($arg instanceof \security\SecureString) {
$encoded = $arg->getCharacters();
} else {
if ($arg instanceof \util\Secret) {
$encoded = $arg->reveal();
} else {
$encoded = (string) $arg;
}
}
$buffer = 0;
$left = 0;
$bytes = '';
for ($i = 0, $l = strlen($encoded); $i < $l; $i++) {
$c = $encoded[$i];
if (isset($table[$c])) {
$buffer = $buffer << 5 | $table[$c];
$left += 5;
if ($left >= 8) {
$bytes .= chr($buffer >> ($left -= 8));
}
} else {
throw new FormatException(sprintf('Illegal character 0x%02x in input at position %d/%d', ord($c), $i, $l));
}
}
parent::__construct($bytes);
}
/**
* Creates a new secret string given base32-encoded bytes
*
* @param util.Bytes|string $bytes
* @throws lang.FormatException
*/
public function __construct($bytes)
{
if ($bytes instanceof \lang\types\Bytes) {
parent::__construct($bytes->buffer);
} else {
parent::__construct((string) $bytes);
}
}
