Function intArrayFromBase64

js/sql-debug.js:5442–5463

(s)

// Converts a string of base64 into a byte array.
// Throws error on invalid input.
function intArrayFromBase64(s) {
  if (typeof ENVIRONMENT_IS_NODE === 'boolean' && ENVIRONMENT_IS_NODE) {
    var buf;
    try {
      buf = Buffer.from(s, 'base64');
    } catch (_) {
      buf = new Buffer(s, 'base64');
    }
    return new Uint8Array(buf.buffer, buf.byteOffset, buf.byteLength);
  }

  try {
    var decoded = decodeBase64(s);
    var bytes = new Uint8Array(decoded.length);
    for (var i = 0 ; i < decoded.length ; ++i) {
      bytes[i] = decoded.charCodeAt(i);
    }
    return bytes;
  } catch (_) {
    throw new Error('Converting base64 string to bytes failed.');
  }
}

// If filename is a base64 data URI, parses and returns data (Buffer on node,
// Uint8Array otherwise). If filename is not a base64 data URI, returns undefined.