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'use strict'; const pump = require('pump'); const bufferStream = require('./buffer-stream'); class MaxBufferError extends Error { constructor() { super('maxBuffer exceeded'); this.name = 'MaxBufferError'; } } function getStream(inputStream, options) { if (!inputStream) { return Promise.reject(new Error('Expected a stream')); } options = Object.assign({maxBuffer: Infinity}, options); const {maxBuffer} = options; let stream; return new Promise((resolve, reject) => { const rejectPromise = error => { if (error) { // A null check error.bufferedData = stream.getBufferedValue(); } reject(error); }; stream = pump(inputStream, bufferStream(options), error => { if (error) { rejectPromise(error); return; } resolve(); }); stream.on('data', () => { if (stream.getBufferedLength() > maxBuffer) { rejectPromise(new MaxBufferError()); } }); }).then(() => stream.getBufferedValue()); } module.exports = getStream; module.exports.buffer = (stream, options) => getStream(stream, Object.assign({}, options, {encoding: 'buffer'})); module.exports.array = (stream, options) => getStream(stream, Object.assign({}, options, {array: true})); module.exports.MaxBufferError = MaxBufferError;
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