76 lines
2.3 KiB
PHP
76 lines
2.3 KiB
PHP
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<?php
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// +----------------------------------------------------------------------
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// | TopThink [ WE CAN DO IT JUST THINK IT ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2015 http://www.topthink.com All rights reserved.
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// +----------------------------------------------------------------------
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// | Author: zhangyajun <448901948@qq.com>
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// +----------------------------------------------------------------------
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namespace think\process;
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class Utils
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{
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/**
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* 转义字符串
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* @param string $argument
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* @return string
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*/
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public static function escapeArgument($argument)
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{
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if ('' === $argument) {
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return escapeshellarg($argument);
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}
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$escapedArgument = '';
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$quote = false;
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foreach (preg_split('/(")/i', $argument, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE) as $part) {
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if ('"' === $part) {
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$escapedArgument .= '\\"';
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} elseif (self::isSurroundedBy($part, '%')) {
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// Avoid environment variable expansion
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$escapedArgument .= '^%"' . substr($part, 1, -1) . '"^%';
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} else {
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// escape trailing backslash
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if ('\\' === substr($part, -1)) {
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$part .= '\\';
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}
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$quote = true;
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$escapedArgument .= $part;
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}
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}
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if ($quote) {
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$escapedArgument = '"' . $escapedArgument . '"';
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}
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return $escapedArgument;
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}
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/**
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* 验证并进行规范化Process输入。
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* @param string $caller
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* @param mixed $input
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* @return string
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* @throws \InvalidArgumentException
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*/
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public static function validateInput($caller, $input)
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{
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if (null !== $input) {
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if (is_resource($input)) {
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return $input;
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}
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if (is_scalar($input)) {
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return (string) $input;
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}
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throw new \InvalidArgumentException(sprintf('%s only accepts strings or stream resources.', $caller));
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}
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return $input;
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}
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private static function isSurroundedBy($arg, $char)
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{
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return 2 < strlen($arg) && $char === $arg[0] && $char === $arg[strlen($arg) - 1];
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}
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}
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