Strings.php: Spaces are transformed to Tabs.
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@ -14,397 +14,395 @@ use Friendica\Core\Logger;
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*/
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class Strings
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{
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/**
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* @brief Generates a pseudo-random string of hexadecimal characters
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*
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* @param int $size
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* @return string
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* @throws \Exception
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*/
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public static function getRandomHex($size = 64)
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{
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$byte_size = ceil($size / 2);
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/**
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* @brief Generates a pseudo-random string of hexadecimal characters
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*
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* @param int $size
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* @return string
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* @throws \Exception
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*/
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public static function getRandomHex($size = 64)
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{
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$byte_size = ceil($size / 2);
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$bytes = random_bytes($byte_size);
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$bytes = random_bytes($byte_size);
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$return = substr(bin2hex($bytes), 0, $size);
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$return = substr(bin2hex($bytes), 0, $size);
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return $return;
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}
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return $return;
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}
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/**
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* Checks, if the given string is a valid hexadecimal code
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*
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* @param string $hexCode
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*
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* @return bool
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*/
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public static function isHex($hexCode)
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{
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return !empty($hexCode) ? @preg_match("/^[a-f0-9]{2,}$/i", $hexCode) && !(strlen($hexCode) & 1) : false;
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}
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/**
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* Checks, if the given string is a valid hexadecimal code
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*
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* @param string $hexCode
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*
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* @return bool
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*/
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public static function isHex($hexCode)
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{
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return !empty($hexCode) ? @preg_match("/^[a-f0-9]{2,}$/i", $hexCode) && !(strlen($hexCode) & 1) : false;
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}
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/**
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* @brief This is our primary input filter.
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*
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* Use this on any text input where angle chars are not valid or permitted
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* They will be replaced with safer brackets. This may be filtered further
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* if these are not allowed either.
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*
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* @param string $string Input string
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* @return string Filtered string
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*/
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public static function escapeTags($string)
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{
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return str_replace(["<", ">"], ['[', ']'], $string);
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}
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/**
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* @brief This is our primary input filter.
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*
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* Use this on any text input where angle chars are not valid or permitted
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* They will be replaced with safer brackets. This may be filtered further
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* if these are not allowed either.
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*
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* @param string $string Input string
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* @return string Filtered string
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*/
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public static function escapeTags($string)
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{
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return str_replace(["<", ">"], ['[', ']'], $string);
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}
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/**
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* @brief Use this on "body" or "content" input where angle chars shouldn't be removed,
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* and allow them to be safely displayed.
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* @param string $string
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*
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* @return string
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*/
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public static function escapeHtml($string)
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{
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return htmlspecialchars($string, ENT_COMPAT, 'UTF-8', false);
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}
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/**
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* @brief Use this on "body" or "content" input where angle chars shouldn't be removed,
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* and allow them to be safely displayed.
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* @param string $string
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*
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* @return string
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*/
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public static function escapeHtml($string)
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{
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return htmlspecialchars($string, ENT_COMPAT, 'UTF-8', false);
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}
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/**
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* @brief Generate a string that's random, but usually pronounceable. Used to generate initial passwords
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*
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* @param int $len length
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*
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* @return string
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*/
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public static function getRandomName($len)
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{
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if ($len <= 0) {
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return '';
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}
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/**
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* @brief Generate a string that's random, but usually pronounceable. Used to generate initial passwords
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*
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* @param int $len length
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*
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* @return string
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*/
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public static function getRandomName($len)
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{
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if ($len <= 0) {
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return '';
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}
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$vowels = ['a', 'a', 'ai', 'au', 'e', 'e', 'e', 'ee', 'ea', 'i', 'ie', 'o', 'ou', 'u'];
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$vowels = ['a', 'a', 'ai', 'au', 'e', 'e', 'e', 'ee', 'ea', 'i', 'ie', 'o', 'ou', 'u'];
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if (mt_rand(0, 5) == 4) {
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$vowels[] = 'y';
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}
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if (mt_rand(0, 5) == 4) {
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$vowels[] = 'y';
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}
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$cons = [
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'b', 'bl', 'br',
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'c', 'ch', 'cl', 'cr',
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'd', 'dr',
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'f', 'fl', 'fr',
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'g', 'gh', 'gl', 'gr',
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'h',
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'j',
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'k', 'kh', 'kl', 'kr',
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'l',
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'm',
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'n',
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'p', 'ph', 'pl', 'pr',
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'qu',
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'r', 'rh',
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's', 'sc', 'sh', 'sm', 'sp', 'st',
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't', 'th', 'tr',
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'v',
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'w', 'wh',
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'x',
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'z', 'zh'
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];
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$cons = [
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'b', 'bl', 'br',
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'c', 'ch', 'cl', 'cr',
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'd', 'dr',
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'f', 'fl', 'fr',
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'g', 'gh', 'gl', 'gr',
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'h',
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'j',
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'k', 'kh', 'kl', 'kr',
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'l',
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'm',
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'n',
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'p', 'ph', 'pl', 'pr',
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'qu',
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'r', 'rh',
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's', 'sc', 'sh', 'sm', 'sp', 'st',
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't', 'th', 'tr',
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'v',
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'w', 'wh',
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'x',
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'z', 'zh'
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];
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$midcons = [
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'ck', 'ct', 'gn', 'ld', 'lf', 'lm', 'lt', 'mb', 'mm', 'mn', 'mp',
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'nd', 'ng', 'nk', 'nt', 'rn', 'rp', 'rt'
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];
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$midcons = [
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'ck', 'ct', 'gn', 'ld', 'lf', 'lm', 'lt', 'mb', 'mm', 'mn', 'mp',
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'nd', 'ng', 'nk', 'nt', 'rn', 'rp', 'rt'
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];
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$noend = [
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'bl', 'br', 'cl', 'cr', 'dr', 'fl', 'fr', 'gl', 'gr',
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'kh', 'kl', 'kr', 'mn', 'pl', 'pr', 'rh', 'tr', 'qu', 'wh', 'q'
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];
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$noend = [
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'bl', 'br', 'cl', 'cr', 'dr', 'fl', 'fr', 'gl', 'gr',
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'kh', 'kl', 'kr', 'mn', 'pl', 'pr', 'rh', 'tr', 'qu', 'wh', 'q'
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];
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$start = mt_rand(0, 2);
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if ($start == 0) {
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$table = $vowels;
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} else {
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$table = $cons;
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}
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$start = mt_rand(0, 2);
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if ($start == 0) {
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$table = $vowels;
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} else {
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$table = $cons;
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}
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$word = '';
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$word = '';
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for ($x = 0; $x < $len; $x++) {
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$r = mt_rand(0, count($table) - 1);
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$word .= $table[$r];
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for ($x = 0; $x < $len; $x++) {
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$r = mt_rand(0, count($table) - 1);
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$word .= $table[$r];
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if ($table == $vowels) {
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$table = array_merge($cons, $midcons);
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} else {
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$table = $vowels;
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}
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}
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if ($table == $vowels) {
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$table = array_merge($cons, $midcons);
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} else {
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$table = $vowels;
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}
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}
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$word = substr($word, 0, $len);
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$word = substr($word, 0, $len);
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foreach ($noend as $noe) {
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$noelen = strlen($noe);
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if ((strlen($word) > $noelen) && (substr($word, -$noelen) == $noe)) {
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$word = self::getRandomName($len);
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break;
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}
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}
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foreach ($noend as $noe) {
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$noelen = strlen($noe);
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if ((strlen($word) > $noelen) && (substr($word, -$noelen) == $noe)) {
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$word = self::getRandomName($len);
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break;
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}
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}
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return $word;
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}
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return $word;
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}
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/**
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* Translate and format the network name of a contact
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*
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* @param string $network Network name of the contact (e.g. dfrn, rss and so on)
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* @param string $url The contact url
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*
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* @return string Formatted network name
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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public static function formatNetworkName($network, $url = '')
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{
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if ($network != '') {
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if ($url != '') {
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$network_name = '<a href="' . $url . '">' . ContactSelector::networkToName($network, $url) . '</a>';
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} else {
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$network_name = ContactSelector::networkToName($network);
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}
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/**
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* Translate and format the network name of a contact
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*
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* @param string $network Network name of the contact (e.g. dfrn, rss and so on)
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* @param string $url The contact url
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*
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* @return string Formatted network name
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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public static function formatNetworkName($network, $url = '')
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{
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if ($network != '') {
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if ($url != '') {
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$network_name = '<a href="' . $url . '">' . ContactSelector::networkToName($network, $url) . '</a>';
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} else {
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$network_name = ContactSelector::networkToName($network);
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}
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return $network_name;
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}
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}
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return $network_name;
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}
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}
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/**
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* @brief Remove indentation from a text
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*
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* @param string $text String to be transformed.
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* @param string $chr Optional. Indentation tag. Default tab (\t).
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* @param int $count Optional. Default null.
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*
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* @return string Transformed string.
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*/
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public static function deindent($text, $chr = "[\t ]", $count = NULL)
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{
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$lines = explode("\n", $text);
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/**
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* @brief Remove indentation from a text
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*
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* @param string $text String to be transformed.
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* @param string $chr Optional. Indentation tag. Default tab (\t).
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* @param int $count Optional. Default null.
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*
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* @return string Transformed string.
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*/
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public static function deindent($text, $chr = "[\t ]", $count = NULL)
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{
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$lines = explode("\n", $text);
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if (is_null($count)) {
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$m = [];
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$k = 0;
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while ($k < count($lines) && strlen($lines[$k]) == 0) {
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$k++;
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}
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preg_match("|^" . $chr . "*|", $lines[$k], $m);
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$count = strlen($m[0]);
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}
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if (is_null($count)) {
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$m = [];
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$k = 0;
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while ($k < count($lines) && strlen($lines[$k]) == 0) {
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$k++;
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}
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preg_match("|^" . $chr . "*|", $lines[$k], $m);
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$count = strlen($m[0]);
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}
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for ($k = 0; $k < count($lines); $k++) {
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$lines[$k] = preg_replace("|^" . $chr . "{" . $count . "}|", "", $lines[$k]);
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}
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for ($k = 0; $k < count($lines); $k++) {
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$lines[$k] = preg_replace("|^" . $chr . "{" . $count . "}|", "", $lines[$k]);
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}
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return implode("\n", $lines);
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}
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return implode("\n", $lines);
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}
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/**
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* @brief Get byte size returned in a Data Measurement (KB, MB, GB)
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*
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* @param int $bytes The number of bytes to be measured
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* @param int $precision Optional. Default 2.
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*
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* @return string Size with measured units.
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*/
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public static function formatBytes($bytes, $precision = 2)
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{
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$units = ['B', 'KB', 'MB', 'GB', 'TB'];
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$bytes = max($bytes, 0);
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$pow = floor(($bytes ? log($bytes) : 0) / log(1024));
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$pow = min($pow, count($units) - 1);
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$bytes /= pow(1024, $pow);
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/**
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* @brief Get byte size returned in a Data Measurement (KB, MB, GB)
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*
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* @param int $bytes The number of bytes to be measured
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* @param int $precision Optional. Default 2.
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*
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* @return string Size with measured units.
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*/
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public static function formatBytes($bytes, $precision = 2)
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{
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$units = ['B', 'KB', 'MB', 'GB', 'TB'];
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$bytes = max($bytes, 0);
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$pow = floor(($bytes ? log($bytes) : 0) / log(1024));
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$pow = min($pow, count($units) - 1);
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$bytes /= pow(1024, $pow);
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return round($bytes, $precision) . ' ' . $units[$pow];
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}
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return round($bytes, $precision) . ' ' . $units[$pow];
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}
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/**
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* @brief Protect percent characters in sprintf calls
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*
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* @param string $s String to transform.
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*
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* @return string Transformed string.
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*/
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public static function protectSprintf($s)
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{
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return str_replace('%', '%%', $s);
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}
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/**
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* @brief Protect percent characters in sprintf calls
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*
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* @param string $s String to transform.
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*
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* @return string Transformed string.
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*/
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public static function protectSprintf($s)
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{
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return str_replace('%', '%%', $s);
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}
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/**
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* @brief Base64 Encode URL and translate +/ to -_ Optionally strip padding.
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*
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* @param string $s URL to encode
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* @param boolean $strip_padding Optional. Default false
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*
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* @return string Encoded URL
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*/
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public static function base64UrlEncode($s, $strip_padding = false)
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{
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$s = strtr(base64_encode($s), '+/', '-_');
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/**
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* @brief Base64 Encode URL and translate +/ to -_ Optionally strip padding.
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*
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* @param string $s URL to encode
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* @param boolean $strip_padding Optional. Default false
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*
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* @return string Encoded URL
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*/
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public static function base64UrlEncode($s, $strip_padding = false)
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{
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$s = strtr(base64_encode($s), '+/', '-_');
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if ($strip_padding) {
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$s = str_replace('=', '', $s);
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}
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if ($strip_padding) {
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$s = str_replace('=', '', $s);
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}
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return $s;
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}
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return $s;
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}
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/**
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* @brief Decode Base64 Encoded URL and translate -_ to +/
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* @param string $s URL to decode
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*
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* @return string Decoded URL
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* @throws \Exception
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*/
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public static function base64UrlDecode($s)
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{
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if (is_array($s)) {
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Logger::log('base64url_decode: illegal input: ' . print_r(debug_backtrace(), true));
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return $s;
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}
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/**
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* @brief Decode Base64 Encoded URL and translate -_ to +/
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* @param string $s URL to decode
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*
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* @return string Decoded URL
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* @throws \Exception
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*/
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public static function base64UrlDecode($s)
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{
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if (is_array($s)) {
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Logger::log('base64url_decode: illegal input: ' . print_r(debug_backtrace(), true));
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return $s;
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}
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/*
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* // Placeholder for new rev of salmon which strips base64 padding.
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* // PHP base64_decode handles the un-padded input without requiring this step
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* // Uncomment if you find you need it.
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*
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* $l = strlen($s);
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* if (!strpos($s,'=')) {
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* $m = $l % 4;
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* if ($m == 2)
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* $s .= '==';
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* if ($m == 3)
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* $s .= '=';
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* }
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*
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*/
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/*
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* // Placeholder for new rev of salmon which strips base64 padding.
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* // PHP base64_decode handles the un-padded input without requiring this step
|
||||
* // Uncomment if you find you need it.
|
||||
*
|
||||
* $l = strlen($s);
|
||||
* if (!strpos($s,'=')) {
|
||||
* $m = $l % 4;
|
||||
* if ($m == 2)
|
||||
* $s .= '==';
|
||||
* if ($m == 3)
|
||||
* $s .= '=';
|
||||
* }
|
||||
*
|
||||
*/
|
||||
|
||||
return base64_decode(strtr($s, '-_', '+/'));
|
||||
}
|
||||
return base64_decode(strtr($s, '-_', '+/'));
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Normalize url
|
||||
*
|
||||
* @param string $url URL to be normalized.
|
||||
*
|
||||
* @return string Normalized URL.
|
||||
*/
|
||||
public static function normaliseLink($url)
|
||||
{
|
||||
$ret = str_replace(['https:', '//www.'], ['http:', '//'], $url);
|
||||
return rtrim($ret, '/');
|
||||
}
|
||||
/**
|
||||
* @brief Normalize url
|
||||
*
|
||||
* @param string $url URL to be normalized.
|
||||
*
|
||||
* @return string Normalized URL.
|
||||
*/
|
||||
public static function normaliseLink($url)
|
||||
{
|
||||
$ret = str_replace(['https:', '//www.'], ['http:', '//'], $url);
|
||||
return rtrim($ret, '/');
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Normalize OpenID identity
|
||||
*
|
||||
* @param string $s OpenID Identity
|
||||
*
|
||||
* @return string normalized OpenId Identity
|
||||
*/
|
||||
public static function normaliseOpenID($s)
|
||||
{
|
||||
return trim(str_replace(['http://', 'https://'], ['', ''], $s), '/');
|
||||
}
|
||||
/**
|
||||
* @brief Normalize OpenID identity
|
||||
*
|
||||
* @param string $s OpenID Identity
|
||||
*
|
||||
* @return string normalized OpenId Identity
|
||||
*/
|
||||
public static function normaliseOpenID($s)
|
||||
{
|
||||
return trim(str_replace(['http://', 'https://'], ['', ''], $s), '/');
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Compare two URLs to see if they are the same, but ignore
|
||||
* slight but hopefully insignificant differences such as if one
|
||||
* is https and the other isn't, or if one is www.something and
|
||||
* the other isn't - and also ignore case differences.
|
||||
*
|
||||
* @param string $a first url
|
||||
* @param string $b second url
|
||||
* @return boolean True if the URLs match, otherwise False
|
||||
*
|
||||
*/
|
||||
public static function compareLink($a, $b)
|
||||
{
|
||||
return (strcasecmp(self::normaliseLink($a), self::normaliseLink($b)) === 0);
|
||||
}
|
||||
/**
|
||||
* @brief Compare two URLs to see if they are the same, but ignore
|
||||
* slight but hopefully insignificant differences such as if one
|
||||
* is https and the other isn't, or if one is www.something and
|
||||
* the other isn't - and also ignore case differences.
|
||||
*
|
||||
* @param string $a first url
|
||||
* @param string $b second url
|
||||
* @return boolean True if the URLs match, otherwise False
|
||||
*
|
||||
*/
|
||||
public static function compareLink($a, $b)
|
||||
{
|
||||
return (strcasecmp(self::normaliseLink($a), self::normaliseLink($b)) === 0);
|
||||
}
|
||||
|
||||
/**
|
||||
* Ensures the provided URI has its query string punctuation in order.
|
||||
*
|
||||
* @param string $uri
|
||||
* @return string
|
||||
*/
|
||||
public static function ensureQueryParameter($uri)
|
||||
{
|
||||
if (strpos($uri, '?') === false && ($pos = strpos($uri, '&')) !== false) {
|
||||
$uri = substr($uri, 0, $pos) . '?' . substr($uri, $pos + 1);
|
||||
}
|
||||
|
||||
/**
|
||||
* Ensures the provided URI has its query string punctuation in order.
|
||||
*
|
||||
* @param string $uri
|
||||
* @return string
|
||||
*/
|
||||
public static function ensureQueryParameter($uri)
|
||||
{
|
||||
if (strpos($uri, '?') === false && ($pos = strpos($uri, '&')) !== false) {
|
||||
$uri = substr($uri, 0, $pos) . '?' . substr($uri, $pos + 1);
|
||||
}
|
||||
return $uri;
|
||||
}
|
||||
|
||||
return $uri;
|
||||
}
|
||||
/**
|
||||
* Check if the trimmed provided string is starting with one of the provided characters
|
||||
*
|
||||
* @param string $string
|
||||
* @param array $chars
|
||||
* @return bool
|
||||
*/
|
||||
public static function startsWith($string, array $chars)
|
||||
{
|
||||
$return = in_array(substr(trim($string), 0, 1), $chars);
|
||||
|
||||
return $return;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if the trimmed provided string is starting with one of the provided characters
|
||||
*
|
||||
* @param string $string
|
||||
* @param array $chars
|
||||
* @return bool
|
||||
*/
|
||||
public static function startsWith($string, array $chars)
|
||||
{
|
||||
$return = in_array(substr(trim($string), 0, 1), $chars);
|
||||
|
||||
return $return;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the regular expression string to match URLs in a given text
|
||||
*
|
||||
* @return string
|
||||
* @see https://daringfireball.net/2010/07/improved_regex_for_matching_urls
|
||||
*/
|
||||
public static function autoLinkRegEx()
|
||||
{
|
||||
return '@
|
||||
(?<![=\'\]"/]) # Not preceded by [, =, \', ], ", /
|
||||
/**
|
||||
* Returns the regular expression string to match URLs in a given text
|
||||
*
|
||||
* @return string
|
||||
* @see https://daringfireball.net/2010/07/improved_regex_for_matching_urls
|
||||
*/
|
||||
public static function autoLinkRegEx()
|
||||
{
|
||||
return '@
|
||||
(?<![=\'\]"/]) # Not preceded by [, =, \', ], ", /
|
||||
\b
|
||||
( # Capture 1: entire matched URL
|
||||
https?:// # http or https protocol
|
||||
( # Capture 1: entire matched URL
|
||||
https?:// # http or https protocol
|
||||
(?:
|
||||
[^/\s\xA0`!()\[\]{};:\'",<>?«»“”‘’.] # Domain can\'t start with a .
|
||||
[^/\s\xA0`!()\[\]{};:\'",<>?«»“”‘’]+ # Domain can\'t end with a .
|
||||
\.
|
||||
[^/\s\xA0`!()\[\]{};:\'".,<>?«»“”‘’]+/? # Followed by a slash
|
||||
[^/\s\xA0`!()\[\]{};:\'",<>?«»“”‘’.] # Domain can\'t start with a .
|
||||
[^/\s\xA0`!()\[\]{};:\'",<>?«»“”‘’]+ # Domain can\'t end with a .
|
||||
\.
|
||||
[^/\s\xA0`!()\[\]{};:\'".,<>?«»“”‘’]+/? # Followed by a slash
|
||||
)
|
||||
(?: # One or more:
|
||||
[^\s\xA0()<>]+ # Run of non-space, non-()<>
|
||||
| # or
|
||||
\(([^\s\xA0()<>]+|(\([^\s()<>]+\)))*\) # balanced parens, up to 2 levels
|
||||
| # or
|
||||
[^\s\xA0`!()\[\]{};:\'".,<>?«»“”‘’] # not a space or one of these punct chars
|
||||
(?: # One or more:
|
||||
[^\s\xA0()<>]+ # Run of non-space, non-()<>
|
||||
| # or
|
||||
\(([^\s\xA0()<>]+|(\([^\s()<>]+\)))*\) # balanced parens, up to 2 levels
|
||||
| # or
|
||||
[^\s\xA0`!()\[\]{};:\'".,<>?«»“”‘’] # not a space or one of these punct chars
|
||||
)*
|
||||
)@xiu';
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Ensures a single path item doesn't contain any path-traversing characters
|
||||
*
|
||||
* @see https://stackoverflow.com/a/46097713
|
||||
* @param string $pathItem
|
||||
* @return string
|
||||
*/
|
||||
public static function sanitizeFilePathItem($pathItem)
|
||||
{
|
||||
$pathItem = str_replace('/', '_', $pathItem);
|
||||
$pathItem = str_replace('\\', '_', $pathItem);
|
||||
$pathItem = str_replace(DIRECTORY_SEPARATOR, '_', $pathItem); // In case it does not equal the standard values
|
||||
/**
|
||||
* Ensures a single path item doesn't contain any path-traversing characters
|
||||
*
|
||||
* @see https://stackoverflow.com/a/46097713
|
||||
* @param string $pathItem
|
||||
* @return string
|
||||
*/
|
||||
public static function sanitizeFilePathItem($pathItem)
|
||||
{
|
||||
$pathItem = str_replace('/', '_', $pathItem);
|
||||
$pathItem = str_replace('\\', '_', $pathItem);
|
||||
$pathItem = str_replace(DIRECTORY_SEPARATOR, '_', $pathItem); // In case it does not equal the standard values
|
||||
|
||||
return $pathItem;
|
||||
}
|
||||
return $pathItem;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue