55 lines
1.6 KiB
PHP
55 lines
1.6 KiB
PHP
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<?php
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namespace App\Service\Storage;
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class S3KeyCleaner
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{
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public static function sanitize($objectKey, $separator = '-')
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{
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return (new self())->sanitizeS3Key($objectKey, $separator);
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}
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public function replaceLatinCharacters($value)
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{
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// Load the latin map
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$latinMap = json_decode(\File::get(resource_path('data/latin-map.json')), true);
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$result = '';
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$length = mb_strlen($value);
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for ($i = 0; $i < $length; $i++) {
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$char = mb_substr($value, $i, 1);
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$result .= array_key_exists($char, $latinMap) ? $latinMap[$char] : $char;
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}
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return $result;
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}
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private function removeIllegalCharacters($value)
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{
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$SAFE_CHARACTERS = '/[^0-9a-zA-Z! _\\.\\*\'\\(\\)\\-\\/]/';
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return preg_replace($SAFE_CHARACTERS, '', $value);
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}
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private function isValidSeparator($separator)
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{
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$SAFE_CHARACTERS = '/[^0-9a-zA-Z! _\\.\\*\'\\(\\)\\-\\/]/';
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return $separator && !preg_match($SAFE_CHARACTERS, $separator);
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}
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public function sanitizeS3Key($objectKey, $separator = '-')
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{
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if (!$this->isValidSeparator($separator)) {
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throw new \Exception("${separator} is not a valid separator");
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}
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if (!$objectKey || (!is_string($objectKey) && !is_numeric($objectKey))) {
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throw new \Exception("Expected non-empty string or number, got ${objectKey}");
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}
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if (is_numeric($objectKey)) {
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return strval($objectKey);
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}
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return str_replace(' ', $separator, $this->removeIllegalCharacters($this->replaceLatinCharacters(trim($objectKey))));
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}
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}
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