export const resolveParamsForS3 = async (endpointParams) => { const bucket = endpointParams?.Bucket || ""; if (typeof endpointParams.Bucket === "string") { endpointParams.Bucket = bucket.replace(/#/g, encodeURIComponent("#")).replace(/\?/g, encodeURIComponent("?")); } if (isArnBucketName(bucket)) { if (endpointParams.ForcePathStyle === true) { throw new Error("Path-style addressing cannot be used with ARN buckets"); } } else if (!isDnsCompatibleBucketName(bucket) || (bucket.indexOf(".") !== -1 && !String(endpointParams.Endpoint).startsWith("http:")) || bucket.toLowerCase() !== bucket || bucket.length < 3) { endpointParams.ForcePathStyle = true; } if (endpointParams.DisableMultiRegionAccessPoints) { endpointParams.disableMultiRegionAccessPoints = true; endpointParams.DisableMRAP = true; } return endpointParams; }; const DOMAIN_PATTERN = /^[a-z0-9][a-z0-9\.\-]{1,61}[a-z0-9]$/; const IP_ADDRESS_PATTERN = /(\d+\.){3}\d+/; const DOTS_PATTERN = /\.\./; export const DOT_PATTERN = /\./; export const S3_HOSTNAME_PATTERN = /^(.+\.)?s3(-fips)?(\.dualstack)?[.-]([a-z0-9-]+)\./; export const isDnsCompatibleBucketName = (bucketName) => DOMAIN_PATTERN.test(bucketName) && !IP_ADDRESS_PATTERN.test(bucketName) && !DOTS_PATTERN.test(bucketName); export const isArnBucketName = (bucketName) => { const [arn, partition, service, , , bucket] = bucketName.split(":"); const isArn = arn === "arn" && bucketName.split(":").length >= 6; const isValidArn = Boolean(isArn && partition && service && bucket); if (isArn && !isValidArn) { throw new Error(`Invalid ARN: ${bucketName} was an invalid ARN.`); } return isValidArn; };