@aut-labs/sdk/dist/utils/base64.js

The TS/JS SDK package aims to make it easy for frontends/backends to integrate with Aut Smart Contracts

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.base64toFile = exports.isBase64 = void 0;
const isBase64 = (str) => {
    if (str === "" || str.trim() === "") {
        return false;
    }
    try {
        return btoa(atob(str)) === str;
    }
    catch (err) {
        return false;
    }
};
exports.isBase64 = isBase64;
function base64toFile(dataurl, filename) {
    if (!dataurl) {
        throw new Error("No content was provided");
    }
    const [metadata, base64] = dataurl.split(",");
    if (metadata) {
        const mime = metadata.match(/:(.*?);/)[1];
        if (!(0, exports.isBase64)(base64)) {
            throw new Error("Content provided is not of base64");
        }
        const bstr = atob(base64);
        let n = bstr.length;
        const u8arr = new Uint8Array(n);
        // eslint-disable-next-line no-plusplus
        while (n--) {
            u8arr[n] = bstr.charCodeAt(n);
        }
        return new File([u8arr], filename, { type: mime });
    }
}
exports.base64toFile = base64toFile;
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