/* * MinIO Javascript Library for Amazon S3 Compatible Cloud Storage, (C) 2015 MinIO, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import * as crypto from "crypto"; import * as stream from "stream"; import { XMLParser } from 'fast-xml-parser'; import ipaddr from 'ipaddr.js'; import _ from 'lodash'; import * as mime from 'mime-types'; import { fsp, fstat } from "./async.mjs"; import { ENCRYPTION_TYPES } from "./type.mjs"; const MetaDataHeaderPrefix = 'x-amz-meta-'; export function hashBinary(buf, enableSHA256) { let sha256sum = ''; if (enableSHA256) { sha256sum = crypto.createHash('sha256').update(buf).digest('hex'); } const md5sum = crypto.createHash('md5').update(buf).digest('base64'); return { md5sum, sha256sum }; } // S3 percent-encodes some extra non-standard characters in a URI . So comply with S3. const encodeAsHex = c => `%${c.charCodeAt(0).toString(16).toUpperCase()}`; export function uriEscape(uriStr) { return encodeURIComponent(uriStr).replace(/[!'()*]/g, encodeAsHex); } export function uriResourceEscape(string) { return uriEscape(string).replace(/%2F/g, '/'); } export function getScope(region, date, serviceName = 's3') { return `${makeDateShort(date)}/${region}/${serviceName}/aws4_request`; } /** * isAmazonEndpoint - true if endpoint is 's3.amazonaws.com' or 's3.cn-north-1.amazonaws.com.cn' */ export function isAmazonEndpoint(endpoint) { return endpoint === 's3.amazonaws.com' || endpoint === 's3.cn-north-1.amazonaws.com.cn'; } /** * isVirtualHostStyle - verify if bucket name is support with virtual * hosts. bucketNames with periods should be always treated as path * style if the protocol is 'https:', this is due to SSL wildcard * limitation. For all other buckets and Amazon S3 endpoint we will * default to virtual host style. */ export function isVirtualHostStyle(endpoint, protocol, bucket, pathStyle) { if (protocol === 'https:' && bucket.includes('.')) { return false; } return isAmazonEndpoint(endpoint) || !pathStyle; } export function isValidIP(ip) { return ipaddr.isValid(ip); } /** * @returns if endpoint is valid domain. */ export function isValidEndpoint(endpoint) { return isValidDomain(endpoint) || isValidIP(endpoint); } /** * @returns if input host is a valid domain. */ export function isValidDomain(host) { if (!isString(host)) { return false; } // See RFC 1035, RFC 3696. if (host.length === 0 || host.length > 255) { return false; } // Host cannot start or end with a '-' if (host[0] === '-' || host.slice(-1) === '-') { return false; } // Host cannot start or end with a '_' if (host[0] === '_' || host.slice(-1) === '_') { return false; } // Host cannot start with a '.' if (host[0] === '.') { return false; } const nonAlphaNumerics = '`~!@#$%^&*()+={}[]|\\"\';:> 63) { return false; } // bucket with successive periods is invalid. if (bucket.includes('..')) { return false; } // bucket cannot have ip address style. if (/[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+/.test(bucket)) { return false; } // bucket should begin with alphabet/number and end with alphabet/number, // with alphabet/number/.- in the middle. if (/^[a-z0-9][a-z0-9.-]+[a-z0-9]$/.test(bucket)) { return true; } return false; } /** * check if objectName is a valid object name */ export function isValidObjectName(objectName) { if (!isValidPrefix(objectName)) { return false; } return objectName.length !== 0; } /** * check if prefix is valid */ export function isValidPrefix(prefix) { if (!isString(prefix)) { return false; } if (prefix.length > 1024) { return false; } return true; } /** * check if typeof arg number */ export function isNumber(arg) { return typeof arg === 'number'; } // eslint-disable-next-line @typescript-eslint/no-explicit-any /** * check if typeof arg function */ export function isFunction(arg) { return typeof arg === 'function'; } /** * check if typeof arg string */ export function isString(arg) { return typeof arg === 'string'; } /** * check if typeof arg object */ export function isObject(arg) { return typeof arg === 'object' && arg !== null; } /** * check if typeof arg is plain object */ export function isPlainObject(arg) { return Object.prototype.toString.call(arg) === '[object Object]'; } /** * check if object is readable stream */ export function isReadableStream(arg) { // eslint-disable-next-line @typescript-eslint/unbound-method return isObject(arg) && isFunction(arg._read); } /** * check if arg is boolean */ export function isBoolean(arg) { return typeof arg === 'boolean'; } export function isEmpty(o) { return _.isEmpty(o); } export function isEmptyObject(o) { return Object.values(o).filter(x => x !== undefined).length !== 0; } export function isDefined(o) { return o !== null && o !== undefined; } /** * check if arg is a valid date */ export function isValidDate(arg) { // @ts-expect-error checknew Date(Math.NaN) return arg instanceof Date && !isNaN(arg); } /** * Create a Date string with format: 'YYYYMMDDTHHmmss' + Z */ export function makeDateLong(date) { date = date || new Date(); // Gives format like: '2017-08-07T16:28:59.889Z' const s = date.toISOString(); return s.slice(0, 4) + s.slice(5, 7) + s.slice(8, 13) + s.slice(14, 16) + s.slice(17, 19) + 'Z'; } /** * Create a Date string with format: 'YYYYMMDD' */ export function makeDateShort(date) { date = date || new Date(); // Gives format like: '2017-08-07T16:28:59.889Z' const s = date.toISOString(); return s.slice(0, 4) + s.slice(5, 7) + s.slice(8, 10); } /** * pipesetup sets up pipe() from left to right os streams array * pipesetup will also make sure that error emitted at any of the upstream Stream * will be emitted at the last stream. This makes error handling simple */ export function pipesetup(...streams) { // @ts-expect-error ts can't narrow this return streams.reduce((src, dst) => { src.on('error', err => dst.emit('error', err)); return src.pipe(dst); }); } /** * return a Readable stream that emits data */ export function readableStream(data) { const s = new stream.Readable(); s._read = () => {}; s.push(data); s.push(null); return s; } /** * Process metadata to insert appropriate value to `content-type` attribute */ export function insertContentType(metaData, filePath) { // check if content-type attribute present in metaData for (const key in metaData) { if (key.toLowerCase() === 'content-type') { return metaData; } } // if `content-type` attribute is not present in metadata, then infer it from the extension in filePath return { ...metaData, 'content-type': probeContentType(filePath) }; } /** * Function prepends metadata with the appropriate prefix if it is not already on */ export function prependXAMZMeta(metaData) { if (!metaData) { return {}; } return _.mapKeys(metaData, (value, key) => { if (isAmzHeader(key) || isSupportedHeader(key) || isStorageClassHeader(key)) { return key; } return MetaDataHeaderPrefix + key; }); } /** * Checks if it is a valid header according to the AmazonS3 API */ export function isAmzHeader(key) { const temp = key.toLowerCase(); return temp.startsWith(MetaDataHeaderPrefix) || temp === 'x-amz-acl' || temp.startsWith('x-amz-server-side-encryption-') || temp === 'x-amz-server-side-encryption'; } /** * Checks if it is a supported Header */ export function isSupportedHeader(key) { const supported_headers = ['content-type', 'cache-control', 'content-encoding', 'content-disposition', 'content-language', 'x-amz-website-redirect-location', 'if-none-match', 'if-match']; return supported_headers.includes(key.toLowerCase()); } /** * Checks if it is a storage header */ export function isStorageClassHeader(key) { return key.toLowerCase() === 'x-amz-storage-class'; } export function extractMetadata(headers) { return _.mapKeys(_.pickBy(headers, (value, key) => isSupportedHeader(key) || isStorageClassHeader(key) || isAmzHeader(key)), (value, key) => { const lower = key.toLowerCase(); if (lower.startsWith(MetaDataHeaderPrefix)) { return lower.slice(MetaDataHeaderPrefix.length); } return key; }); } export function getVersionId(headers = {}) { return headers['x-amz-version-id'] || null; } export function getSourceVersionId(headers = {}) { return headers['x-amz-copy-source-version-id'] || null; } export function sanitizeETag(etag = '') { const replaceChars = { '"': '', '"': '', '"': '', '"': '', '"': '' }; return etag.replace(/^("|"|")|("|"|")$/g, m => replaceChars[m]); } export function toMd5(payload) { // use string from browser and buffer from nodejs // browser support is tested only against minio server return crypto.createHash('md5').update(Buffer.from(payload)).digest().toString('base64'); } export function toSha256(payload) { return crypto.createHash('sha256').update(payload).digest('hex'); } /** * toArray returns a single element array with param being the element, * if param is just a string, and returns 'param' back if it is an array * So, it makes sure param is always an array */ export function toArray(param) { if (!Array.isArray(param)) { return [param]; } return param; } export function sanitizeObjectKey(objectName) { // + symbol characters are not decoded as spaces in JS. so replace them first and decode to get the correct result. const asStrName = (objectName ? objectName.toString() : '').replace(/\+/g, ' '); return decodeURIComponent(asStrName); } export function sanitizeSize(size) { return size ? Number.parseInt(size) : undefined; } export const PART_CONSTRAINTS = { // absMinPartSize - absolute minimum part size (5 MiB) ABS_MIN_PART_SIZE: 1024 * 1024 * 5, // MIN_PART_SIZE - minimum part size 16MiB per object after which MIN_PART_SIZE: 1024 * 1024 * 16, // MAX_PARTS_COUNT - maximum number of parts for a single multipart session. MAX_PARTS_COUNT: 10000, // MAX_PART_SIZE - maximum part size 5GiB for a single multipart upload // operation. MAX_PART_SIZE: 1024 * 1024 * 1024 * 5, // MAX_SINGLE_PUT_OBJECT_SIZE - maximum size 5GiB of object per PUT // operation. MAX_SINGLE_PUT_OBJECT_SIZE: 1024 * 1024 * 1024 * 5, // MAX_MULTIPART_PUT_OBJECT_SIZE - maximum size 5TiB of object for // Multipart operation. MAX_MULTIPART_PUT_OBJECT_SIZE: 1024 * 1024 * 1024 * 1024 * 5 }; const GENERIC_SSE_HEADER = 'X-Amz-Server-Side-Encryption'; const ENCRYPTION_HEADERS = { // sseGenericHeader is the AWS SSE header used for SSE-S3 and SSE-KMS. sseGenericHeader: GENERIC_SSE_HEADER, // sseKmsKeyID is the AWS SSE-KMS key id. sseKmsKeyID: GENERIC_SSE_HEADER + '-Aws-Kms-Key-Id' }; /** * Return Encryption headers * @param encConfig * @returns an object with key value pairs that can be used in headers. */ export function getEncryptionHeaders(encConfig) { const encType = encConfig.type; if (!isEmpty(encType)) { if (encType === ENCRYPTION_TYPES.SSEC) { return { [ENCRYPTION_HEADERS.sseGenericHeader]: 'AES256' }; } else if (encType === ENCRYPTION_TYPES.KMS) { return { [ENCRYPTION_HEADERS.sseGenericHeader]: encConfig.SSEAlgorithm, [ENCRYPTION_HEADERS.sseKmsKeyID]: encConfig.KMSMasterKeyID }; } } return {}; } export function partsRequired(size) { const maxPartSize = PART_CONSTRAINTS.MAX_MULTIPART_PUT_OBJECT_SIZE / (PART_CONSTRAINTS.MAX_PARTS_COUNT - 1); let requiredPartSize = size / maxPartSize; if (size % maxPartSize > 0) { requiredPartSize++; } requiredPartSize = Math.trunc(requiredPartSize); return requiredPartSize; } /** * calculateEvenSplits - computes splits for a source and returns * start and end index slices. Splits happen evenly to be sure that no * part is less than 5MiB, as that could fail the multipart request if * it is not the last part. */ export function calculateEvenSplits(size, objInfo) { if (size === 0) { return null; } const reqParts = partsRequired(size); const startIndexParts = []; const endIndexParts = []; let start = objInfo.Start; if (isEmpty(start) || start === -1) { start = 0; } const divisorValue = Math.trunc(size / reqParts); const reminderValue = size % reqParts; let nextStart = start; for (let i = 0; i < reqParts; i++) { let curPartSize = divisorValue; if (i < reminderValue) { curPartSize++; } const currentStart = nextStart; const currentEnd = currentStart + curPartSize - 1; nextStart = currentEnd + 1; startIndexParts.push(currentStart); endIndexParts.push(currentEnd); } return { startIndex: startIndexParts, endIndex: endIndexParts, objInfo: objInfo }; } const fxp = new XMLParser({ numberParseOptions: { eNotation: false, hex: true, leadingZeros: true } }); // eslint-disable-next-line @typescript-eslint/no-explicit-any export function parseXml(xml) { const result = fxp.parse(xml); if (result.Error) { throw result.Error; } return result; } /** * get content size of object content to upload */ export async function getContentLength(s) { // use length property of string | Buffer if (typeof s === 'string' || Buffer.isBuffer(s)) { return s.length; } // property of `fs.ReadStream` const filePath = s.path; if (filePath && typeof filePath === 'string') { const stat = await fsp.lstat(filePath); return stat.size; } // property of `fs.ReadStream` const fd = s.fd; if (fd && typeof fd === 'number') { const stat = await fstat(fd); return stat.size; } return null; } //# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["crypto","stream","XMLParser","ipaddr","_","mime","fsp","fstat","ENCRYPTION_TYPES","MetaDataHeaderPrefix","hashBinary","buf","enableSHA256","sha256sum","createHash","update","digest","md5sum","encodeAsHex","c","charCodeAt","toString","toUpperCase","uriEscape","uriStr","encodeURIComponent","replace","uriResourceEscape","string","getScope","region","date","serviceName","makeDateShort","isAmazonEndpoint","endpoint","isVirtualHostStyle","protocol","bucket","pathStyle","includes","isValidIP","ip","isValid","isValidEndpoint","isValidDomain","host","isString","length","slice","nonAlphaNumerics","char","probeContentType","path","contentType","lookup","isValidPort","port","portNum","parseInt","isNumber","isNaN","isValidBucketName","test","isValidObjectName","objectName","isValidPrefix","prefix","arg","isFunction","isObject","isPlainObject","Object","prototype","call","isReadableStream","_read","isBoolean","isEmpty","o","isEmptyObject","values","filter","x","undefined","isDefined","isValidDate","Date","makeDateLong","s","toISOString","pipesetup","streams","reduce","src","dst","on","err","emit","pipe","readableStream","data","Readable","push","insertContentType","metaData","filePath","key","toLowerCase","prependXAMZMeta","mapKeys","value","isAmzHeader","isSupportedHeader","isStorageClassHeader","temp","startsWith","supported_headers","extractMetadata","headers","pickBy","lower","getVersionId","getSourceVersionId","sanitizeETag","etag","replaceChars","m","toMd5","payload","Buffer","from","toSha256","toArray","param","Array","isArray","sanitizeObjectKey","asStrName","decodeURIComponent","sanitizeSize","size","Number","PART_CONSTRAINTS","ABS_MIN_PART_SIZE","MIN_PART_SIZE","MAX_PARTS_COUNT","MAX_PART_SIZE","MAX_SINGLE_PUT_OBJECT_SIZE","MAX_MULTIPART_PUT_OBJECT_SIZE","GENERIC_SSE_HEADER","ENCRYPTION_HEADERS","sseGenericHeader","sseKmsKeyID","getEncryptionHeaders","encConfig","encType","type","SSEC","KMS","SSEAlgorithm","KMSMasterKeyID","partsRequired","maxPartSize","requiredPartSize","Math","trunc","calculateEvenSplits","objInfo","reqParts","startIndexParts","endIndexParts","start","Start","divisorValue","reminderValue","nextStart","i","curPartSize","currentStart","currentEnd","startIndex","endIndex","fxp","numberParseOptions","eNotation","hex","leadingZeros","parseXml","xml","result","parse","Error","getContentLength","isBuffer","stat","lstat","fd"],"sources":["helper.ts"],"sourcesContent":["/*\n * MinIO Javascript Library for Amazon S3 Compatible Cloud Storage, (C) 2015 MinIO, Inc.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport * as crypto from 'node:crypto'\nimport * as stream from 'node:stream'\n\nimport { XMLParser } from 'fast-xml-parser'\nimport ipaddr from 'ipaddr.js'\nimport _ from 'lodash'\nimport * as mime from 'mime-types'\n\nimport { fsp, fstat } from './async.ts'\nimport type { Binary, Encryption, ObjectMetaData, RequestHeaders, ResponseHeader } from './type.ts'\nimport { ENCRYPTION_TYPES } from './type.ts'\n\nconst MetaDataHeaderPrefix = 'x-amz-meta-'\n\nexport function hashBinary(buf: Buffer, enableSHA256: boolean) {\n  let sha256sum = ''\n  if (enableSHA256) {\n    sha256sum = crypto.createHash('sha256').update(buf).digest('hex')\n  }\n  const md5sum = crypto.createHash('md5').update(buf).digest('base64')\n\n  return { md5sum, sha256sum }\n}\n\n// S3 percent-encodes some extra non-standard characters in a URI . So comply with S3.\nconst encodeAsHex = (c: string) => `%${c.charCodeAt(0).toString(16).toUpperCase()}`\nexport function uriEscape(uriStr: string): string {\n  return encodeURIComponent(uriStr).replace(/[!'()*]/g, encodeAsHex)\n}\n\nexport function uriResourceEscape(string: string) {\n  return uriEscape(string).replace(/%2F/g, '/')\n}\n\nexport function getScope(region: string, date: Date, serviceName = 's3') {\n  return `${makeDateShort(date)}/${region}/${serviceName}/aws4_request`\n}\n\n/**\n * isAmazonEndpoint - true if endpoint is 's3.amazonaws.com' or 's3.cn-north-1.amazonaws.com.cn'\n */\nexport function isAmazonEndpoint(endpoint: string) {\n  return endpoint === 's3.amazonaws.com' || endpoint === 's3.cn-north-1.amazonaws.com.cn'\n}\n\n/**\n * isVirtualHostStyle - verify if bucket name is support with virtual\n * hosts. bucketNames with periods should be always treated as path\n * style if the protocol is 'https:', this is due to SSL wildcard\n * limitation. For all other buckets and Amazon S3 endpoint we will\n * default to virtual host style.\n */\nexport function isVirtualHostStyle(endpoint: string, protocol: string, bucket: string, pathStyle: boolean) {\n  if (protocol === 'https:' && bucket.includes('.')) {\n    return false\n  }\n  return isAmazonEndpoint(endpoint) || !pathStyle\n}\n\nexport function isValidIP(ip: string) {\n  return ipaddr.isValid(ip)\n}\n\n/**\n * @returns if endpoint is valid domain.\n */\nexport function isValidEndpoint(endpoint: string) {\n  return isValidDomain(endpoint) || isValidIP(endpoint)\n}\n\n/**\n * @returns if input host is a valid domain.\n */\nexport function isValidDomain(host: string) {\n  if (!isString(host)) {\n    return false\n  }\n  // See RFC 1035, RFC 3696.\n  if (host.length === 0 || host.length > 255) {\n    return false\n  }\n  // Host cannot start or end with a '-'\n  if (host[0] === '-' || host.slice(-1) === '-') {\n    return false\n  }\n  // Host cannot start or end with a '_'\n  if (host[0] === '_' || host.slice(-1) === '_') {\n    return false\n  }\n  // Host cannot start with a '.'\n  if (host[0] === '.') {\n    return false\n  }\n\n  const nonAlphaNumerics = '`~!@#$%^&*()+={}[]|\\\\\"\\';:><?/'\n  // All non alphanumeric characters are invalid.\n  for (const char of nonAlphaNumerics) {\n    if (host.includes(char)) {\n      return false\n    }\n  }\n  // No need to regexp match, since the list is non-exhaustive.\n  // We let it be valid and fail later.\n  return true\n}\n\n/**\n * Probes contentType using file extensions.\n *\n * @example\n * ```\n * // return 'image/png'\n * probeContentType('file.png')\n * ```\n */\nexport function probeContentType(path: string) {\n  let contentType = mime.lookup(path)\n  if (!contentType) {\n    contentType = 'application/octet-stream'\n  }\n  return contentType\n}\n\n/**\n * is input port valid.\n */\nexport function isValidPort(port: unknown): port is number {\n  // Convert string port to number if needed\n  const portNum = typeof port === 'string' ? parseInt(port, 10) : port\n\n  // verify if port is a valid number\n  if (!isNumber(portNum) || isNaN(portNum)) {\n    return false\n  }\n\n  // port `0` is valid and special case\n  return 0 <= portNum && portNum <= 65535\n}\n\nexport function isValidBucketName(bucket: unknown) {\n  if (!isString(bucket)) {\n    return false\n  }\n\n  // bucket length should be less than and no more than 63\n  // characters long.\n  if (bucket.length < 3 || bucket.length > 63) {\n    return false\n  }\n  // bucket with successive periods is invalid.\n  if (bucket.includes('..')) {\n    return false\n  }\n  // bucket cannot have ip address style.\n  if (/[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+/.test(bucket)) {\n    return false\n  }\n  // bucket should begin with alphabet/number and end with alphabet/number,\n  // with alphabet/number/.- in the middle.\n  if (/^[a-z0-9][a-z0-9.-]+[a-z0-9]$/.test(bucket)) {\n    return true\n  }\n  return false\n}\n\n/**\n * check if objectName is a valid object name\n */\nexport function isValidObjectName(objectName: unknown) {\n  if (!isValidPrefix(objectName)) {\n    return false\n  }\n\n  return objectName.length !== 0\n}\n\n/**\n * check if prefix is valid\n */\nexport function isValidPrefix(prefix: unknown): prefix is string {\n  if (!isString(prefix)) {\n    return false\n  }\n  if (prefix.length > 1024) {\n    return false\n  }\n  return true\n}\n\n/**\n * check if typeof arg number\n */\nexport function isNumber(arg: unknown): arg is number {\n  return typeof arg === 'number'\n}\n\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nexport type AnyFunction = (...args: any[]) => any\n\n/**\n * check if typeof arg function\n */\nexport function isFunction(arg: unknown): arg is AnyFunction {\n  return typeof arg === 'function'\n}\n\n/**\n * check if typeof arg string\n */\nexport function isString(arg: unknown): arg is string {\n  return typeof arg === 'string'\n}\n\n/**\n * check if typeof arg object\n */\nexport function isObject(arg: unknown): arg is object {\n  return typeof arg === 'object' && arg !== null\n}\n/**\n * check if typeof arg is plain object\n */\nexport function isPlainObject(arg: unknown): arg is Record<string, unknown> {\n  return Object.prototype.toString.call(arg) === '[object Object]'\n}\n/**\n * check if object is readable stream\n */\nexport function isReadableStream(arg: unknown): arg is stream.Readable {\n  // eslint-disable-next-line @typescript-eslint/unbound-method\n  return isObject(arg) && isFunction((arg as stream.Readable)._read)\n}\n\n/**\n * check if arg is boolean\n */\nexport function isBoolean(arg: unknown): arg is boolean {\n  return typeof arg === 'boolean'\n}\n\nexport function isEmpty(o: unknown): o is null | undefined {\n  return _.isEmpty(o)\n}\n\nexport function isEmptyObject(o: Record<string, unknown>): boolean {\n  return Object.values(o).filter((x) => x !== undefined).length !== 0\n}\n\nexport function isDefined<T>(o: T): o is Exclude<T, null | undefined> {\n  return o !== null && o !== undefined\n}\n\n/**\n * check if arg is a valid date\n */\nexport function isValidDate(arg: unknown): arg is Date {\n  // @ts-expect-error checknew Date(Math.NaN)\n  return arg instanceof Date && !isNaN(arg)\n}\n\n/**\n * Create a Date string with format: 'YYYYMMDDTHHmmss' + Z\n */\nexport function makeDateLong(date?: Date): string {\n  date = date || new Date()\n\n  // Gives format like: '2017-08-07T16:28:59.889Z'\n  const s = date.toISOString()\n\n  return s.slice(0, 4) + s.slice(5, 7) + s.slice(8, 13) + s.slice(14, 16) + s.slice(17, 19) + 'Z'\n}\n\n/**\n * Create a Date string with format: 'YYYYMMDD'\n */\nexport function makeDateShort(date?: Date) {\n  date = date || new Date()\n\n  // Gives format like: '2017-08-07T16:28:59.889Z'\n  const s = date.toISOString()\n\n  return s.slice(0, 4) + s.slice(5, 7) + s.slice(8, 10)\n}\n\n/**\n * pipesetup sets up pipe() from left to right os streams array\n * pipesetup will also make sure that error emitted at any of the upstream Stream\n * will be emitted at the last stream. This makes error handling simple\n */\nexport function pipesetup(...streams: [stream.Readable, ...stream.Duplex[], stream.Writable]) {\n  // @ts-expect-error ts can't narrow this\n  return streams.reduce((src: stream.Readable, dst: stream.Writable) => {\n    src.on('error', (err) => dst.emit('error', err))\n    return src.pipe(dst)\n  })\n}\n\n/**\n * return a Readable stream that emits data\n */\nexport function readableStream(data: unknown): stream.Readable {\n  const s = new stream.Readable()\n  s._read = () => {}\n  s.push(data)\n  s.push(null)\n  return s\n}\n\n/**\n * Process metadata to insert appropriate value to `content-type` attribute\n */\nexport function insertContentType(metaData: ObjectMetaData, filePath: string): ObjectMetaData {\n  // check if content-type attribute present in metaData\n  for (const key in metaData) {\n    if (key.toLowerCase() === 'content-type') {\n      return metaData\n    }\n  }\n\n  // if `content-type` attribute is not present in metadata, then infer it from the extension in filePath\n  return {\n    ...metaData,\n    'content-type': probeContentType(filePath),\n  }\n}\n\n/**\n * Function prepends metadata with the appropriate prefix if it is not already on\n */\nexport function prependXAMZMeta(metaData?: ObjectMetaData): RequestHeaders {\n  if (!metaData) {\n    return {}\n  }\n\n  return _.mapKeys(metaData, (value, key) => {\n    if (isAmzHeader(key) || isSupportedHeader(key) || isStorageClassHeader(key)) {\n      return key\n    }\n\n    return MetaDataHeaderPrefix + key\n  })\n}\n\n/**\n * Checks if it is a valid header according to the AmazonS3 API\n */\nexport function isAmzHeader(key: string) {\n  const temp = key.toLowerCase()\n  return (\n    temp.startsWith(MetaDataHeaderPrefix) ||\n    temp === 'x-amz-acl' ||\n    temp.startsWith('x-amz-server-side-encryption-') ||\n    temp === 'x-amz-server-side-encryption'\n  )\n}\n\n/**\n * Checks if it is a supported Header\n */\nexport function isSupportedHeader(key: string) {\n  const supported_headers = [\n    'content-type',\n    'cache-control',\n    'content-encoding',\n    'content-disposition',\n    'content-language',\n    'x-amz-website-redirect-location',\n    'if-none-match',\n    'if-match',\n  ]\n  return supported_headers.includes(key.toLowerCase())\n}\n\n/**\n * Checks if it is a storage header\n */\nexport function isStorageClassHeader(key: string) {\n  return key.toLowerCase() === 'x-amz-storage-class'\n}\n\nexport function extractMetadata(headers: ResponseHeader) {\n  return _.mapKeys(\n    _.pickBy(headers, (value, key) => isSupportedHeader(key) || isStorageClassHeader(key) || isAmzHeader(key)),\n    (value, key) => {\n      const lower = key.toLowerCase()\n      if (lower.startsWith(MetaDataHeaderPrefix)) {\n        return lower.slice(MetaDataHeaderPrefix.length)\n      }\n\n      return key\n    },\n  )\n}\n\nexport function getVersionId(headers: ResponseHeader = {}) {\n  return headers['x-amz-version-id'] || null\n}\n\nexport function getSourceVersionId(headers: ResponseHeader = {}) {\n  return headers['x-amz-copy-source-version-id'] || null\n}\n\nexport function sanitizeETag(etag = ''): string {\n  const replaceChars: Record<string, string> = {\n    '\"': '',\n    '&quot;': '',\n    '&#34;': '',\n    '&QUOT;': '',\n    '&#x00022': '',\n  }\n  return etag.replace(/^(\"|&quot;|&#34;)|(\"|&quot;|&#34;)$/g, (m) => replaceChars[m] as string)\n}\n\nexport function toMd5(payload: Binary): string {\n  // use string from browser and buffer from nodejs\n  // browser support is tested only against minio server\n  return crypto.createHash('md5').update(Buffer.from(payload)).digest().toString('base64')\n}\n\nexport function toSha256(payload: Binary): string {\n  return crypto.createHash('sha256').update(payload).digest('hex')\n}\n\n/**\n * toArray returns a single element array with param being the element,\n * if param is just a string, and returns 'param' back if it is an array\n * So, it makes sure param is always an array\n */\nexport function toArray<T = unknown>(param: T | T[]): Array<T> {\n  if (!Array.isArray(param)) {\n    return [param] as T[]\n  }\n  return param\n}\n\nexport function sanitizeObjectKey(objectName: string): string {\n  // + symbol characters are not decoded as spaces in JS. so replace them first and decode to get the correct result.\n  const asStrName = (objectName ? objectName.toString() : '').replace(/\\+/g, ' ')\n  return decodeURIComponent(asStrName)\n}\n\nexport function sanitizeSize(size?: string): number | undefined {\n  return size ? Number.parseInt(size) : undefined\n}\n\nexport const PART_CONSTRAINTS = {\n  // absMinPartSize - absolute minimum part size (5 MiB)\n  ABS_MIN_PART_SIZE: 1024 * 1024 * 5,\n  // MIN_PART_SIZE - minimum part size 16MiB per object after which\n  MIN_PART_SIZE: 1024 * 1024 * 16,\n  // MAX_PARTS_COUNT - maximum number of parts for a single multipart session.\n  MAX_PARTS_COUNT: 10000,\n  // MAX_PART_SIZE - maximum part size 5GiB for a single multipart upload\n  // operation.\n  MAX_PART_SIZE: 1024 * 1024 * 1024 * 5,\n  // MAX_SINGLE_PUT_OBJECT_SIZE - maximum size 5GiB of object per PUT\n  // operation.\n  MAX_SINGLE_PUT_OBJECT_SIZE: 1024 * 1024 * 1024 * 5,\n  // MAX_MULTIPART_PUT_OBJECT_SIZE - maximum size 5TiB of object for\n  // Multipart operation.\n  MAX_MULTIPART_PUT_OBJECT_SIZE: 1024 * 1024 * 1024 * 1024 * 5,\n}\n\nconst GENERIC_SSE_HEADER = 'X-Amz-Server-Side-Encryption'\n\nconst ENCRYPTION_HEADERS = {\n  // sseGenericHeader is the AWS SSE header used for SSE-S3 and SSE-KMS.\n  sseGenericHeader: GENERIC_SSE_HEADER,\n  // sseKmsKeyID is the AWS SSE-KMS key id.\n  sseKmsKeyID: GENERIC_SSE_HEADER + '-Aws-Kms-Key-Id',\n} as const\n\n/**\n * Return Encryption headers\n * @param encConfig\n * @returns an object with key value pairs that can be used in headers.\n */\nexport function getEncryptionHeaders(encConfig: Encryption): RequestHeaders {\n  const encType = encConfig.type\n\n  if (!isEmpty(encType)) {\n    if (encType === ENCRYPTION_TYPES.SSEC) {\n      return {\n        [ENCRYPTION_HEADERS.sseGenericHeader]: 'AES256',\n      }\n    } else if (encType === ENCRYPTION_TYPES.KMS) {\n      return {\n        [ENCRYPTION_HEADERS.sseGenericHeader]: encConfig.SSEAlgorithm,\n        [ENCRYPTION_HEADERS.sseKmsKeyID]: encConfig.KMSMasterKeyID,\n      }\n    }\n  }\n\n  return {}\n}\n\nexport function partsRequired(size: number): number {\n  const maxPartSize = PART_CONSTRAINTS.MAX_MULTIPART_PUT_OBJECT_SIZE / (PART_CONSTRAINTS.MAX_PARTS_COUNT - 1)\n  let requiredPartSize = size / maxPartSize\n  if (size % maxPartSize > 0) {\n    requiredPartSize++\n  }\n  requiredPartSize = Math.trunc(requiredPartSize)\n  return requiredPartSize\n}\n\n/**\n * calculateEvenSplits - computes splits for a source and returns\n * start and end index slices. Splits happen evenly to be sure that no\n * part is less than 5MiB, as that could fail the multipart request if\n * it is not the last part.\n */\nexport function calculateEvenSplits<T extends { Start?: number }>(\n  size: number,\n  objInfo: T,\n): {\n  startIndex: number[]\n  objInfo: T\n  endIndex: number[]\n} | null {\n  if (size === 0) {\n    return null\n  }\n  const reqParts = partsRequired(size)\n  const startIndexParts: number[] = []\n  const endIndexParts: number[] = []\n\n  let start = objInfo.Start\n  if (isEmpty(start) || start === -1) {\n    start = 0\n  }\n  const divisorValue = Math.trunc(size / reqParts)\n\n  const reminderValue = size % reqParts\n\n  let nextStart = start\n\n  for (let i = 0; i < reqParts; i++) {\n    let curPartSize = divisorValue\n    if (i < reminderValue) {\n      curPartSize++\n    }\n\n    const currentStart = nextStart\n    const currentEnd = currentStart + curPartSize - 1\n    nextStart = currentEnd + 1\n\n    startIndexParts.push(currentStart)\n    endIndexParts.push(currentEnd)\n  }\n\n  return { startIndex: startIndexParts, endIndex: endIndexParts, objInfo: objInfo }\n}\nconst fxp = new XMLParser({ numberParseOptions: { eNotation: false, hex: true, leadingZeros: true } })\n\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nexport function parseXml(xml: string): any {\n  const result = fxp.parse(xml)\n  if (result.Error) {\n    throw result.Error\n  }\n\n  return result\n}\n\n/**\n * get content size of object content to upload\n */\nexport async function getContentLength(s: stream.Readable | Buffer | string): Promise<number | null> {\n  // use length property of string | Buffer\n  if (typeof s === 'string' || Buffer.isBuffer(s)) {\n    return s.length\n  }\n\n  // property of `fs.ReadStream`\n  const filePath = (s as unknown as Record<string, unknown>).path as string | undefined\n  if (filePath && typeof filePath === 'string') {\n    const stat = await fsp.lstat(filePath)\n    return stat.size\n  }\n\n  // property of `fs.ReadStream`\n  const fd = (s as unknown as Record<string, unknown>).fd as number | null | undefined\n  if (fd && typeof fd === 'number') {\n    const stat = await fstat(fd)\n    return stat.size\n  }\n\n  return 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