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<?php |
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declare(strict_types=1); |
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namespace voku\helper; |
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class Bootup |
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{ |
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/** |
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* filter request inputs |
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* |
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* Ensures inputs are well formed UTF-8 |
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* When not, assumes Windows-1252 and converts to UTF-8 |
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* Tests only values, not keys |
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* |
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* @param int $normalization_form |
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* @param string $leading_combining |
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*/ |
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public static function filterRequestInputs($normalization_form = \Normalizer::NFC, $leading_combining = '◌') |
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{ |
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$a = [ |
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&$_FILES, |
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&$_ENV, |
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&$_GET, |
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&$_POST, |
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&$_COOKIE, |
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&$_SERVER, |
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&$_REQUEST, |
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]; |
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/** @noinspection ReferenceMismatchInspection */ |
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/** @noinspection ForeachSourceInspection */ |
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foreach ($a[0] as &$r) { |
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$a[] = [ |
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&$r['name'], |
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&$r['type'], |
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]; |
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} |
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unset($r, $a[0]); |
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$len = \count($a) + 1; |
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for ($i = 1; $i < $len; ++$i) { |
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/** @noinspection ReferenceMismatchInspection */ |
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/** @noinspection ForeachSourceInspection */ |
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foreach ($a[$i] as &$r) { |
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/** @noinspection ReferenceMismatchInspection */ |
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$s = $r; // $r is a reference, $s a copy |
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if (\is_array($s)) { |
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$a[$len++] = &$r; |
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} else { |
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$r = self::filterString($s, $normalization_form, $leading_combining); |
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} |
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} |
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unset($r, $a[$i]); |
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} |
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} |
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/** |
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* Filter current REQUEST_URI . |
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* |
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* @param string|null $uri <p>If null is set, then the server REQUEST_URI will be used.</p> |
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* @param bool $exit |
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* |
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* @return mixed |
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*/ |
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public static function filterRequestUri($uri = null, $exit = true) |
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{ |
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if ($uri === null) { |
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if (!isset($_SERVER['REQUEST_URI'])) { |
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return false; |
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} |
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$uri = (string) $_SERVER['REQUEST_URI']; |
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} |
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$uriOrig = $uri; |
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// |
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// Ensures the URL is well formed UTF-8 |
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// |
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if (UTF8::is_utf8(\rawurldecode($uri)) === true) { |
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return $uri; |
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} |
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// |
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// When not, assumes Windows-1252 and redirects to the corresponding UTF-8 encoded URL |
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// |
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$uri = (string) \preg_replace_callback( |
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'/[\x80-\xFF]+/', |
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/** |
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* @param array $m |
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* |
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* @return string |
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*/ |
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static function (array $m): string { |
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return \rawurlencode($m[0]); |
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}, |
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$uri |
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); |
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$uri = (string) \preg_replace_callback( |
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'/(?:%[89A-F][0-9A-F])+/i', |
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/** |
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* @param array $m |
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* |
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* @return string |
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*/ |
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static function (array $m): string { |
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return \rawurlencode(UTF8::rawurldecode($m[0])); |
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}, |
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$uri |
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); |
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if ( |
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$uri !== $uriOrig |
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&& |
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$exit === true |
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&& |
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\headers_sent() === false |
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) { |
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// Use ob_start() to buffer content and avoid problem of headers already sent... |
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$severProtocol = ($_SERVER['SERVER_PROTOCOL'] ?? 'HTTP/1.1'); |
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\header($severProtocol . ' 301 Moved Permanently'); |
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\header('Location: ' . $uri); |
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exit(); |
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} |
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return $uri; |
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} |
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/** |
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* Normalizes to UTF-8 NFC, converting from WINDOWS-1252 when needed. |
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* |
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* @param mixed $input |
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* @param int $normalization_form |
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* @param string $leading_combining |
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* |
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* @return mixed |
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*/ |
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public static function filterString($input, int $normalization_form = \Normalizer::NFC, string $leading_combining = '◌') |
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{ |
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return UTF8::filter($input, $normalization_form, $leading_combining); |
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} |
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/** |
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* Get random bytes via "random_bytes()" |
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* |
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* @param int $length <p>output length</p> |
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* |
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* @throws \Exception if it was not possible to gather sufficient entropy |
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* |
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* @return false|string |
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* <strong>false</strong> on error |
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*/ |
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public static function get_random_bytes($length) |
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{ |
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if (!$length) { |
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return false; |
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} |
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$length = (int) $length; |
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if ($length <= 0) { |
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return false; |
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} |
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return \random_bytes($length); |
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} |
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/** |
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* bootstrap |
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*/ |
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public static function initAll() |
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{ |
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\ini_set('default_charset', 'UTF-8'); |
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// everything is init via composer, so we are done here ... |
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} |
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/** |
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* Determines if the current version of PHP is equal to or greater than the supplied value. |
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* |
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* @param string $version <p>e.g. "7.1"<p> |
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* |
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* @return bool |
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* Return <strong>true</strong> if the current version is $version or higher |
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*/ |
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public static function is_php($version): bool |
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{ |
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static $_IS_PHP; |
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$version = (string) $version; |
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if (!isset($_IS_PHP[$version])) { |
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$_IS_PHP[$version] = \version_compare(\PHP_VERSION, $version, '>='); |
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} |
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return $_IS_PHP[$version]; |
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} |
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} |
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voku /
portable-utf8
