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<?php |
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|
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declare(strict_types=1); |
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|
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namespace League\Flysystem; |
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|
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class WhitespacePathNormalizer implements PathNormalizer |
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{ |
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public function normalizePath(string $path): string |
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{ |
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$path = str_replace('\\', '/', $path); |
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$this->rejectFunkyWhiteSpace($path); |
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|
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return $this->normalizeRelativePath($path); |
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} |
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|
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private function rejectFunkyWhiteSpace(string $path): void |
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{ |
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if (preg_match('#\p{C}+#u', $path)) { |
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throw CorruptedPathDetected::forPath($path); |
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} |
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} |
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|
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private function normalizeRelativePath(string $path): string |
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{ |
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$parts = []; |
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|
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foreach (explode('/', $path) as $part) { |
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switch ($part) { |
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case '': |
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case '.': |
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break; |
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|
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case '..': |
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if (empty($parts)) { |
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throw PathTraversalDetected::forPath($path); |
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} |
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array_pop($parts); |
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break; |
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|
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default: |
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$parts[] = $part; |
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break; |
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} |
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} |
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|
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return implode('/', $parts); |
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} |
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} |
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|
