32 lines
935 B
JavaScript
32 lines
935 B
JavaScript
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'use strict';
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const decompressResponse = require('decompress-response');
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const is = require('@sindresorhus/is');
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const mimicResponse = require('mimic-response');
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const progress = require('./progress');
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module.exports = (response, options, emitter) => {
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const downloadBodySize = Number(response.headers['content-length']) || null;
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const progressStream = progress.download(response, emitter, downloadBodySize);
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mimicResponse(response, progressStream);
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const newResponse = options.decompress === true &&
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is.function(decompressResponse) &&
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options.method !== 'HEAD' ? decompressResponse(progressStream) : progressStream;
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if (!options.decompress && ['gzip', 'deflate'].includes(response.headers['content-encoding'])) {
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options.encoding = null;
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}
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emitter.emit('response', newResponse);
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emitter.emit('downloadProgress', {
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percent: 0,
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transferred: 0,
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total: downloadBodySize
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});
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response.pipe(progressStream);
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};
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