26 lines
558 B
JavaScript
26 lines
558 B
JavaScript
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export function decode(base32) {
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for (
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var base32chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567",
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bits = "",
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hex = "",
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i = 0;
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i < base32.length;
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i++
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) {
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var val = base32chars.indexOf(base32.charAt(i).toUpperCase());
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bits += leftpad(val.toString(2), 5, "0");
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}
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for (i = 0; i + 4 <= bits.length; i += 4) {
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var chunk = bits.substr(i, 4);
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hex += parseInt(chunk, 2).toString(16);
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}
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return hex;
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}
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function leftpad(str, len, pad) {
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return (
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len + 1 >= str.length &&
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(str = new Array(len + 1 - str.length).join(pad) + str),
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str
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);
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}
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