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<?php |
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/** |
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* This file is part of the Simple S3 package. |
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* |
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* (c) Mauro Cassani<https://github.com/mauretto78> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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*/ |
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namespace Matecat\SimpleS3\Components\Validators; |
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/** |
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* This class check if a string is a valid S3 Bucket Name |
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* |
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* Amazon S3 Bucket Naming Requirements |
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* ------------------------------------------------------------------------- |
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* The Amazon S3 bucket that you use to store CloudTrail log files must have a name that conforms with naming requirements for non-US Standard regions. Amazon S3 defines a bucket name as a series of one or more labels, separated by periods, that adhere to the following rules: |
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* |
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* - The bucket name can be between 3 and 63 characters long, and can contain only lower-case characters, numbers, periods, and dashes. |
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* - Each label in the bucket name must start with a lowercase letter or number. |
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* - The bucket name cannot contain underscores, end with a dash, have consecutive periods, or use dashes adjacent to periods. |
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* - The bucket name cannot be formatted as an IP address (198.51.100.24). |
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* |
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* Complete reference: |
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* |
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* https://docs.aws.amazon.com/en_us/awscloudtrail/latest/userguide/cloudtrail-s3-bucket-naming-requirements.html |
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* |
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* @package SimpleS3 |
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*/ |
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final class S3BucketNameValidator extends S3NameValidator |
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{ |
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/** |
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* @param string $string |
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* |
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* @return array |
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*/ |
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public static function validate($string) |
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{ |
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$errors = []; |
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if (strlen($string) < 3) { |
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$errors[] = 'The string is too short'; |
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} |
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if (strlen($string) > 64) { |
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$errors[] = 'The string is too long'; |
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} |
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if (filter_var($string, FILTER_VALIDATE_IP)) { |
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$errors[] = 'The string is an IP address'; |
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} |
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if (strtolower($string) !== $string) { |
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$errors[] = 'The string contains capital letters'; |
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} |
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if (preg_match('/[^a-z.\-0-9]/i', $string)) { |
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$errors[] = 'The string contains a not allowed character'; |
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} |
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if (substr($string, -1) === '-') { |
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$errors[] = 'The string ends with a -'; |
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} |
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$notAllowedCombos = [ |
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'..', |
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'-.', |
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'.-' |
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]; |
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foreach ($notAllowedCombos as $notAllowedCombo) { |
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if (strpos($string, $notAllowedCombo)) { |
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$errors[] = 'The string contains a not allowed character combination'; |
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} |
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} |
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return $errors; |
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} |
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} |
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matecat /
simple-s3
