27 lines
762 B
JavaScript
27 lines
762 B
JavaScript
const util = require('util');
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const fs = require('fs');
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const fetch = require('node-fetch');
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const isURL = require('is-url');
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module.exports = async (_data) => {
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let data = _data;
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if (typeof _data === 'undefined') {
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return new Uint8Array();
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}
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if (typeof _data === 'string') {
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if (isURL(_data) || _data.startsWith('chrome-extension://') || _data.startsWith('file://')) {
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const res = await fetch(_data);
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data = await res.arrayBuffer();
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} else if (/data:_data\/([a-zA-Z]*);base64,([^"]*)/.test(_data)) {
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data = Buffer.from(_data.split(',')[1], 'base64');
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} else {
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data = await util.promisify(fs.readFile)(_data);
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}
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} else if (Buffer.isBuffer(_data)) {
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data = _data;
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}
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return new Uint8Array(data);
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};
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