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kirby/vendor/true/punycode/LICENSE vendored Normal file
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Copyright (c) 2014 TrueServer B.V.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is furnished
to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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{
"name": "true/punycode",
"description": "A Bootstring encoding of Unicode for Internationalized Domain Names in Applications (IDNA)",
"keywords": ["IDNA", "punycode"],
"homepage": "https://github.com/true/php-punycode",
"license": "MIT",
"authors": [
{
"name": "Renan Gonçalves",
"email": "renan.saddam@gmail.com"
}
],
"autoload": {
"psr-4": {
"TrueBV\\": "src/"
}
},
"require": {
"symfony/polyfill-mbstring": "^1.3",
"php": ">=5.3.0"
},
"require-dev": {
"phpunit/phpunit": "~4.7",
"squizlabs/php_codesniffer": "~2.0"
}
}

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<?php
namespace TrueBV\Exception;
/**
* Class DomainOutOfBoundsException
* @package TrueBV\Exception
* @author Sebastian Kroczek <sk@xbug.de>
*/
class DomainOutOfBoundsException extends OutOfBoundsException
{
}

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<?php
namespace TrueBV\Exception;
/**
* Class LabelOutOfBoundsException
* @package TrueBV\Exception
* @author Sebastian Kroczek <sk@xbug.de>
*/
class LabelOutOfBoundsException extends OutOfBoundsException
{
}

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<?php
namespace TrueBV\Exception;
/**
* Class OutOfBoundsException
* @package TrueBV\Exception
* @author Sebastian Kroczek <sk@xbug.de>
*/
class OutOfBoundsException extends \RuntimeException
{
}

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<?php
namespace TrueBV;
use TrueBV\Exception\DomainOutOfBoundsException;
use TrueBV\Exception\LabelOutOfBoundsException;
/**
* Punycode implementation as described in RFC 3492
*
* @link http://tools.ietf.org/html/rfc3492
*/
class Punycode
{
/**
* Bootstring parameter values
*
*/
const BASE = 36;
const TMIN = 1;
const TMAX = 26;
const SKEW = 38;
const DAMP = 700;
const INITIAL_BIAS = 72;
const INITIAL_N = 128;
const PREFIX = 'xn--';
const DELIMITER = '-';
/**
* Encode table
*
* @param array
*/
protected static $encodeTable = array(
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x',
'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
);
/**
* Decode table
*
* @param array
*/
protected static $decodeTable = array(
'a' => 0, 'b' => 1, 'c' => 2, 'd' => 3, 'e' => 4, 'f' => 5,
'g' => 6, 'h' => 7, 'i' => 8, 'j' => 9, 'k' => 10, 'l' => 11,
'm' => 12, 'n' => 13, 'o' => 14, 'p' => 15, 'q' => 16, 'r' => 17,
's' => 18, 't' => 19, 'u' => 20, 'v' => 21, 'w' => 22, 'x' => 23,
'y' => 24, 'z' => 25, '0' => 26, '1' => 27, '2' => 28, '3' => 29,
'4' => 30, '5' => 31, '6' => 32, '7' => 33, '8' => 34, '9' => 35
);
/**
* Character encoding
*
* @param string
*/
protected $encoding;
/**
* Constructor
*
* @param string $encoding Character encoding
*/
public function __construct($encoding = 'UTF-8')
{
$this->encoding = $encoding;
}
/**
* Encode a domain to its Punycode version
*
* @param string $input Domain name in Unicode to be encoded
* @return string Punycode representation in ASCII
*/
public function encode($input)
{
$input = mb_strtolower($input, $this->encoding);
$parts = explode('.', $input);
foreach ($parts as &$part) {
$length = strlen($part);
if ($length < 1) {
throw new LabelOutOfBoundsException(sprintf('The length of any one label is limited to between 1 and 63 octets, but %s given.', $length));
}
$part = $this->encodePart($part);
}
$output = implode('.', $parts);
$length = strlen($output);
if ($length > 255) {
throw new DomainOutOfBoundsException(sprintf('A full domain name is limited to 255 octets (including the separators), %s given.', $length));
}
return $output;
}
/**
* Encode a part of a domain name, such as tld, to its Punycode version
*
* @param string $input Part of a domain name
* @return string Punycode representation of a domain part
*/
protected function encodePart($input)
{
$codePoints = $this->listCodePoints($input);
$n = static::INITIAL_N;
$bias = static::INITIAL_BIAS;
$delta = 0;
$h = $b = count($codePoints['basic']);
$output = '';
foreach ($codePoints['basic'] as $code) {
$output .= $this->codePointToChar($code);
}
if ($input === $output) {
return $output;
}
if ($b > 0) {
$output .= static::DELIMITER;
}
$codePoints['nonBasic'] = array_unique($codePoints['nonBasic']);
sort($codePoints['nonBasic']);
$i = 0;
$length = mb_strlen($input, $this->encoding);
while ($h < $length) {
$m = $codePoints['nonBasic'][$i++];
$delta = $delta + ($m - $n) * ($h + 1);
$n = $m;
foreach ($codePoints['all'] as $c) {
if ($c < $n || $c < static::INITIAL_N) {
$delta++;
}
if ($c === $n) {
$q = $delta;
for ($k = static::BASE;; $k += static::BASE) {
$t = $this->calculateThreshold($k, $bias);
if ($q < $t) {
break;
}
$code = $t + (($q - $t) % (static::BASE - $t));
$output .= static::$encodeTable[$code];
$q = ($q - $t) / (static::BASE - $t);
}
$output .= static::$encodeTable[$q];
$bias = $this->adapt($delta, $h + 1, ($h === $b));
$delta = 0;
$h++;
}
}
$delta++;
$n++;
}
$out = static::PREFIX . $output;
$length = strlen($out);
if ($length > 63 || $length < 1) {
throw new LabelOutOfBoundsException(sprintf('The length of any one label is limited to between 1 and 63 octets, but %s given.', $length));
}
return $out;
}
/**
* Decode a Punycode domain name to its Unicode counterpart
*
* @param string $input Domain name in Punycode
* @return string Unicode domain name
*/
public function decode($input)
{
$input = strtolower($input);
$parts = explode('.', $input);
foreach ($parts as &$part) {
$length = strlen($part);
if ($length > 63 || $length < 1) {
throw new LabelOutOfBoundsException(sprintf('The length of any one label is limited to between 1 and 63 octets, but %s given.', $length));
}
if (strpos($part, static::PREFIX) !== 0) {
continue;
}
$part = substr($part, strlen(static::PREFIX));
$part = $this->decodePart($part);
}
$output = implode('.', $parts);
$length = strlen($output);
if ($length > 255) {
throw new DomainOutOfBoundsException(sprintf('A full domain name is limited to 255 octets (including the separators), %s given.', $length));
}
return $output;
}
/**
* Decode a part of domain name, such as tld
*
* @param string $input Part of a domain name
* @return string Unicode domain part
*/
protected function decodePart($input)
{
$n = static::INITIAL_N;
$i = 0;
$bias = static::INITIAL_BIAS;
$output = '';
$pos = strrpos($input, static::DELIMITER);
if ($pos !== false) {
$output = substr($input, 0, $pos++);
} else {
$pos = 0;
}
$outputLength = strlen($output);
$inputLength = strlen($input);
while ($pos < $inputLength) {
$oldi = $i;
$w = 1;
for ($k = static::BASE;; $k += static::BASE) {
$digit = static::$decodeTable[$input[$pos++]];
$i = $i + ($digit * $w);
$t = $this->calculateThreshold($k, $bias);
if ($digit < $t) {
break;
}
$w = $w * (static::BASE - $t);
}
$bias = $this->adapt($i - $oldi, ++$outputLength, ($oldi === 0));
$n = $n + (int) ($i / $outputLength);
$i = $i % ($outputLength);
$output = mb_substr($output, 0, $i, $this->encoding) . $this->codePointToChar($n) . mb_substr($output, $i, $outputLength - 1, $this->encoding);
$i++;
}
return $output;
}
/**
* Calculate the bias threshold to fall between TMIN and TMAX
*
* @param integer $k
* @param integer $bias
* @return integer
*/
protected function calculateThreshold($k, $bias)
{
if ($k <= $bias + static::TMIN) {
return static::TMIN;
} elseif ($k >= $bias + static::TMAX) {
return static::TMAX;
}
return $k - $bias;
}
/**
* Bias adaptation
*
* @param integer $delta
* @param integer $numPoints
* @param boolean $firstTime
* @return integer
*/
protected function adapt($delta, $numPoints, $firstTime)
{
$delta = (int) (
($firstTime)
? $delta / static::DAMP
: $delta / 2
);
$delta += (int) ($delta / $numPoints);
$k = 0;
while ($delta > ((static::BASE - static::TMIN) * static::TMAX) / 2) {
$delta = (int) ($delta / (static::BASE - static::TMIN));
$k = $k + static::BASE;
}
$k = $k + (int) (((static::BASE - static::TMIN + 1) * $delta) / ($delta + static::SKEW));
return $k;
}
/**
* List code points for a given input
*
* @param string $input
* @return array Multi-dimension array with basic, non-basic and aggregated code points
*/
protected function listCodePoints($input)
{
$codePoints = array(
'all' => array(),
'basic' => array(),
'nonBasic' => array(),
);
$length = mb_strlen($input, $this->encoding);
for ($i = 0; $i < $length; $i++) {
$char = mb_substr($input, $i, 1, $this->encoding);
$code = $this->charToCodePoint($char);
if ($code < 128) {
$codePoints['all'][] = $codePoints['basic'][] = $code;
} else {
$codePoints['all'][] = $codePoints['nonBasic'][] = $code;
}
}
return $codePoints;
}
/**
* Convert a single or multi-byte character to its code point
*
* @param string $char
* @return integer
*/
protected function charToCodePoint($char)
{
$code = ord($char[0]);
if ($code < 128) {
return $code;
} elseif ($code < 224) {
return (($code - 192) * 64) + (ord($char[1]) - 128);
} elseif ($code < 240) {
return (($code - 224) * 4096) + ((ord($char[1]) - 128) * 64) + (ord($char[2]) - 128);
} else {
return (($code - 240) * 262144) + ((ord($char[1]) - 128) * 4096) + ((ord($char[2]) - 128) * 64) + (ord($char[3]) - 128);
}
}
/**
* Convert a code point to its single or multi-byte character
*
* @param integer $code
* @return string
*/
protected function codePointToChar($code)
{
if ($code <= 0x7F) {
return chr($code);
} elseif ($code <= 0x7FF) {
return chr(($code >> 6) + 192) . chr(($code & 63) + 128);
} elseif ($code <= 0xFFFF) {
return chr(($code >> 12) + 224) . chr((($code >> 6) & 63) + 128) . chr(($code & 63) + 128);
} else {
return chr(($code >> 18) + 240) . chr((($code >> 12) & 63) + 128) . chr((($code >> 6) & 63) + 128) . chr(($code & 63) + 128);
}
}
}