minio
Version:
S3 Compatible Cloud Storage client
602 lines (561 loc) • 62.8 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.calculateEvenSplits = calculateEvenSplits;
exports.extractMetadata = extractMetadata;
exports.getContentLength = getContentLength;
exports.getEncryptionHeaders = getEncryptionHeaders;
exports.getScope = getScope;
exports.getSourceVersionId = getSourceVersionId;
exports.getVersionId = getVersionId;
exports.hashBinary = hashBinary;
exports.insertContentType = insertContentType;
exports.isAmazonEndpoint = isAmazonEndpoint;
exports.isAmzHeader = isAmzHeader;
exports.isBoolean = isBoolean;
exports.isDefined = isDefined;
exports.isEmpty = isEmpty;
exports.isEmptyObject = isEmptyObject;
exports.isFunction = isFunction;
exports.isNumber = isNumber;
exports.isObject = isObject;
exports.isReadableStream = isReadableStream;
exports.isStorageClassHeader = isStorageClassHeader;
exports.isString = isString;
exports.isSupportedHeader = isSupportedHeader;
exports.isValidBucketName = isValidBucketName;
exports.isValidDate = isValidDate;
exports.isValidDomain = isValidDomain;
exports.isValidEndpoint = isValidEndpoint;
exports.isValidIP = isValidIP;
exports.isValidObjectName = isValidObjectName;
exports.isValidPort = isValidPort;
exports.isValidPrefix = isValidPrefix;
exports.isVirtualHostStyle = isVirtualHostStyle;
exports.makeDateLong = makeDateLong;
exports.makeDateShort = makeDateShort;
exports.parseXml = parseXml;
exports.partsRequired = partsRequired;
exports.pipesetup = pipesetup;
exports.prependXAMZMeta = prependXAMZMeta;
exports.probeContentType = probeContentType;
exports.readableStream = readableStream;
exports.sanitizeETag = sanitizeETag;
exports.sanitizeObjectKey = sanitizeObjectKey;
exports.sanitizeSize = sanitizeSize;
exports.toArray = toArray;
exports.toMd5 = toMd5;
exports.toSha256 = toSha256;
exports.uriEscape = uriEscape;
exports.uriResourceEscape = uriResourceEscape;
var crypto = _interopRequireWildcard(require("crypto"), true);
var stream = _interopRequireWildcard(require("stream"), true);
var _fastXmlParser = require("fast-xml-parser");
var _ipaddr = require("ipaddr.js");
var _lodash = require("lodash");
var mime = _interopRequireWildcard(require("mime-types"), true);
var _async = require("./async.js");
var _type = require("./type.js");
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
/*
* 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.
*/
const MetaDataHeaderPrefix = 'x-amz-meta-';
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 => `%${c.charCodeAt(0).toString(16).toUpperCase()}`;
function uriEscape(uriStr) {
return encodeURIComponent(uriStr).replace(/[!'()*]/g, encodeAsHex);
}
function uriResourceEscape(string) {
return uriEscape(string).replace(/%2F/g, '/');
}
function getScope(region, date, serviceName = 's3') {
return `${makeDateShort(date)}/${region}/${serviceName}/aws4_request`;
}
/**
* isAmazonEndpoint - true if endpoint is 's3.amazonaws.com' or 's3.cn-north-1.amazonaws.com.cn'
*/
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.
*/
function isVirtualHostStyle(endpoint, protocol, bucket, pathStyle) {
if (protocol === 'https:' && bucket.includes('.')) {
return false;
}
return isAmazonEndpoint(endpoint) || !pathStyle;
}
function isValidIP(ip) {
return _ipaddr.isValid(ip);
}
/**
* @returns if endpoint is valid domain.
*/
function isValidEndpoint(endpoint) {
return isValidDomain(endpoint) || isValidIP(endpoint);
}
/**
* @returns if input host is a valid domain.
*/
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 = '`~!@#$%^&*()+={}[]|\\"\';:><?/';
// All non alphanumeric characters are invalid.
for (const char of nonAlphaNumerics) {
if (host.includes(char)) {
return false;
}
}
// No need to regexp match, since the list is non-exhaustive.
// We let it be valid and fail later.
return true;
}
/**
* Probes contentType using file extensions.
*
* @example
* ```
* // return 'image/png'
* probeContentType('file.png')
* ```
*/
function probeContentType(path) {
let contentType = mime.lookup(path);
if (!contentType) {
contentType = 'application/octet-stream';
}
return contentType;
}
/**
* is input port valid.
*/
function isValidPort(port) {
// Convert string port to number if needed
const portNum = typeof port === 'string' ? parseInt(port, 10) : port;
// verify if port is a valid number
if (!isNumber(portNum) || isNaN(portNum)) {
return false;
}
// port `0` is valid and special case
return 0 <= portNum && portNum <= 65535;
}
function isValidBucketName(bucket) {
if (!isString(bucket)) {
return false;
}
// bucket length should be less than and no more than 63
// characters long.
if (bucket.length < 3 || bucket.length > 63) {
return false;
}
// bucket with successive periods is invalid.
if (bucket.includes('..')) {
return false;
}
// bucket cannot have ip address style.
if (/[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+/.test(bucket)) {
return false;
}
// bucket should begin with alphabet/number and end with alphabet/number,
// with alphabet/number/.- in the middle.
if (/^[a-z0-9][a-z0-9.-]+[a-z0-9]$/.test(bucket)) {
return true;
}
return false;
}
/**
* check if objectName is a valid object name
*/
function isValidObjectName(objectName) {
if (!isValidPrefix(objectName)) {
return false;
}
return objectName.length !== 0;
}
/**
* check if prefix is valid
*/
function isValidPrefix(prefix) {
if (!isString(prefix)) {
return false;
}
if (prefix.length > 1024) {
return false;
}
return true;
}
/**
* check if typeof arg number
*/
function isNumber(arg) {
return typeof arg === 'number';
}
// eslint-disable-next-line @typescript-eslint/no-explicit-any
/**
* check if typeof arg function
*/
function isFunction(arg) {
return typeof arg === 'function';
}
/**
* check if typeof arg string
*/
function isString(arg) {
return typeof arg === 'string';
}
/**
* check if typeof arg object
*/
function isObject(arg) {
return typeof arg === 'object' && arg !== null;
}
/**
* check if object is readable stream
*/
function isReadableStream(arg) {
// eslint-disable-next-line @typescript-eslint/unbound-method
return isObject(arg) && isFunction(arg._read);
}
/**
* check if arg is boolean
*/
function isBoolean(arg) {
return typeof arg === 'boolean';
}
function isEmpty(o) {
return _lodash.isEmpty(o);
}
function isEmptyObject(o) {
return Object.values(o).filter(x => x !== undefined).length !== 0;
}
function isDefined(o) {
return o !== null && o !== undefined;
}
/**
* check if arg is a valid date
*/
function isValidDate(arg) {
// @ts-expect-error checknew Date(Math.NaN)
return arg instanceof Date && !isNaN(arg);
}
/**
* Create a Date string with format: 'YYYYMMDDTHHmmss' + Z
*/
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'
*/
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
*/
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
*/
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
*/
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
*/
function prependXAMZMeta(metaData) {
if (!metaData) {
return {};
}
return _lodash.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
*/
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
*/
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
*/
function isStorageClassHeader(key) {
return key.toLowerCase() === 'x-amz-storage-class';
}
function extractMetadata(headers) {
return _lodash.mapKeys(_lodash.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;
});
}
function getVersionId(headers = {}) {
return headers['x-amz-version-id'] || null;
}
function getSourceVersionId(headers = {}) {
return headers['x-amz-copy-source-version-id'] || null;
}
function sanitizeETag(etag = '') {
const replaceChars = {
'"': '',
'"': '',
'"': '',
'"': '',
'"': ''
};
return etag.replace(/^("|"|")|("|"|")$/g, m => replaceChars[m]);
}
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');
}
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
*/
function toArray(param) {
if (!Array.isArray(param)) {
return [param];
}
return param;
}
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);
}
function sanitizeSize(size) {
return size ? Number.parseInt(size) : undefined;
}
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
};
exports.PART_CONSTRAINTS = PART_CONSTRAINTS;
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.
*/
function getEncryptionHeaders(encConfig) {
const encType = encConfig.type;
if (!isEmpty(encType)) {
if (encType === _type.ENCRYPTION_TYPES.SSEC) {
return {
[ENCRYPTION_HEADERS.sseGenericHeader]: 'AES256'
};
} else if (encType === _type.ENCRYPTION_TYPES.KMS) {
return {
[ENCRYPTION_HEADERS.sseGenericHeader]: encConfig.SSEAlgorithm,
[ENCRYPTION_HEADERS.sseKmsKeyID]: encConfig.KMSMasterKeyID
};
}
}
return {};
}
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.
*/
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 _fastXmlParser.XMLParser({
numberParseOptions: {
eNotation: false,
hex: true,
leadingZeros: true
}
});
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function parseXml(xml) {
const result = fxp.parse(xml);
if (result.Error) {
throw result.Error;
}
return result;
}
/**
* get content size of object content to upload
*/
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 _async.fsp.lstat(filePath);
return stat.size;
}
// property of `fs.ReadStream`
const fd = s.fd;
if (fd && typeof fd === 'number') {
const stat = await (0, _async.fstat)(fd);
return stat.size;
}
return null;
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["crypto","_interopRequireWildcard","require","stream","_fastXmlParser","_ipaddr","_lodash","mime","_async","_type","_getRequireWildcardCache","nodeInterop","WeakMap","cacheBabelInterop","cacheNodeInterop","obj","__esModule","default","cache","has","get","newObj","hasPropertyDescriptor","Object","defineProperty","getOwnPropertyDescriptor","key","prototype","hasOwnProperty","call","desc","set","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","ipaddr","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","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","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","exports","GENERIC_SSE_HEADER","ENCRYPTION_HEADERS","sseGenericHeader","sseKmsKeyID","getEncryptionHeaders","encConfig","encType","type","ENCRYPTION_TYPES","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","XMLParser","numberParseOptions","eNotation","hex","leadingZeros","parseXml","xml","result","parse","Error","getContentLength","isBuffer","stat","fsp","lstat","fd","fstat"],"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/**\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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