39 lines
1014 B
JavaScript
39 lines
1014 B
JavaScript
"use strict";
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const DATA_URL_PATTERN = /^data:([^/]+\/[^,;]+(?:[^,]*?))(;base64)?,([\s\S]*)$/;
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function dataURItoBlob(dataURI, opts, toFile) {
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var _ref, _opts$mimeType;
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// get the base64 data
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const dataURIData = DATA_URL_PATTERN.exec(dataURI); // user may provide mime type, if not get it from data URI
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const mimeType = (_ref = (_opts$mimeType = opts.mimeType) != null ? _opts$mimeType : dataURIData == null ? void 0 : dataURIData[1]) != null ? _ref : 'plain/text';
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let data;
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if (dataURIData[2] != null) {
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const binary = atob(decodeURIComponent(dataURIData[3]));
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const bytes = new Uint8Array(binary.length);
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for (let i = 0; i < binary.length; i++) {
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bytes[i] = binary.charCodeAt(i);
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}
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data = [bytes];
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} else {
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data = [decodeURIComponent(dataURIData[3])];
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} // Convert to a File?
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if (toFile) {
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return new File(data, opts.name || '', {
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type: mimeType
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});
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}
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return new Blob(data, {
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type: mimeType
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});
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}
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module.exports = dataURItoBlob; |