Linux altar53.supremepanel53.com 4.18.0-553.8.1.lve.el8.x86_64 #1 SMP Thu Jul 4 16:24:39 UTC 2024 x86_64
/ lib/ node_modules/ npm/ node_modules/ concat-stream/ |
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var Writable = require('readable-stream').Writable var inherits = require('inherits') var bufferFrom = require('buffer-from') if (typeof Uint8Array === 'undefined') { var U8 = require('typedarray').Uint8Array } else { var U8 = Uint8Array } function ConcatStream(opts, cb) { if (!(this instanceof ConcatStream)) return new ConcatStream(opts, cb) if (typeof opts === 'function') { cb = opts opts = {} } if (!opts) opts = {} var encoding = opts.encoding var shouldInferEncoding = false if (!encoding) { shouldInferEncoding = true } else { encoding = String(encoding).toLowerCase() if (encoding === 'u8' || encoding === 'uint8') { encoding = 'uint8array' } } Writable.call(this, { objectMode: true }) this.encoding = encoding this.shouldInferEncoding = shouldInferEncoding if (cb) this.on('finish', function () { cb(this.getBody()) }) this.body = [] } module.exports = ConcatStream inherits(ConcatStream, Writable) ConcatStream.prototype._write = function(chunk, enc, next) { this.body.push(chunk) next() } ConcatStream.prototype.inferEncoding = function (buff) { var firstBuffer = buff === undefined ? this.body[0] : buff; if (Buffer.isBuffer(firstBuffer)) return 'buffer' if (typeof Uint8Array !== 'undefined' && firstBuffer instanceof Uint8Array) return 'uint8array' if (Array.isArray(firstBuffer)) return 'array' if (typeof firstBuffer === 'string') return 'string' if (Object.prototype.toString.call(firstBuffer) === "[object Object]") return 'object' return 'buffer' } ConcatStream.prototype.getBody = function () { if (!this.encoding && this.body.length === 0) return [] if (this.shouldInferEncoding) this.encoding = this.inferEncoding() if (this.encoding === 'array') return arrayConcat(this.body) if (this.encoding === 'string') return stringConcat(this.body) if (this.encoding === 'buffer') return bufferConcat(this.body) if (this.encoding === 'uint8array') return u8Concat(this.body) return this.body } var isArray = Array.isArray || function (arr) { return Object.prototype.toString.call(arr) == '[object Array]' } function isArrayish (arr) { return /Array\]$/.test(Object.prototype.toString.call(arr)) } function isBufferish (p) { return typeof p === 'string' || isArrayish(p) || (p && typeof p.subarray === 'function') } function stringConcat (parts) { var strings = [] var needsToString = false for (var i = 0; i < parts.length; i++) { var p = parts[i] if (typeof p === 'string') { strings.push(p) } else if (Buffer.isBuffer(p)) { strings.push(p) } else if (isBufferish(p)) { strings.push(bufferFrom(p)) } else { strings.push(bufferFrom(String(p))) } } if (Buffer.isBuffer(parts[0])) { strings = Buffer.concat(strings) strings = strings.toString('utf8') } else { strings = strings.join('') } return strings } function bufferConcat (parts) { var bufs = [] for (var i = 0; i < parts.length; i++) { var p = parts[i] if (Buffer.isBuffer(p)) { bufs.push(p) } else if (isBufferish(p)) { bufs.push(bufferFrom(p)) } else { bufs.push(bufferFrom(String(p))) } } return Buffer.concat(bufs) } function arrayConcat (parts) { var res = [] for (var i = 0; i < parts.length; i++) { res.push.apply(res, parts[i]) } return res } function u8Concat (parts) { var len = 0 for (var i = 0; i < parts.length; i++) { if (typeof parts[i] === 'string') { parts[i] = bufferFrom(parts[i]) } len += parts[i].length } var u8 = new U8(len) for (var i = 0, offset = 0; i < parts.length; i++) { var part = parts[i] for (var j = 0; j < part.length; j++) { u8[offset++] = part[j] } } return u8 }