Function _dnToAsn1

packages/engine.io/test/util.mjs:16–58

* Converts an X.509 subject or issuer to an ASN.1 RDNSequence. * * @param {any} obj the subject or issuer (distinguished name). * * @return the ASN.1 RDNSequence.

(obj)

 * @return the ASN.1 RDNSequence.
 */
function _dnToAsn1(obj) {
  // create an empty RDNSequence
  const rval = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [])

  // iterate over attributes
  let attr, set
  const attrs = obj.attributes
  for (let i = 0; i < attrs.length; ++i) {
    attr = attrs[i]
    let value = attr.value

    // reuse tag class for attribute value if available
    let valueTagClass = asn1.Type.PRINTABLESTRING
    if ('valueTagClass' in attr) {
      valueTagClass = attr.valueTagClass

      if (valueTagClass === asn1.Type.UTF8) {
        value = forge.util.encodeUtf8(value)
      }
      // FIXME: handle more encodings
    }

    // create a RelativeDistinguishedName set
    // each value in the set is an AttributeTypeAndValue first
    // containing the type (an OID) and second the value
    set = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SET, true, [
      asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [
        // AttributeType
        asn1.create(
          asn1.Class.UNIVERSAL,
          asn1.Type.OID,
          false,
          asn1.oidToDer(attr.type).getBytes()
        ),
        // AttributeValue
        asn1.create(asn1.Class.UNIVERSAL, valueTagClass, false, value)
      ])
    ])
    rval.value.push(set)
  }

  return rval
}

const jan_1_1950 = new Date('1950-01-01T00:00:00Z') // eslint-disable-line camelcase
const jan_1_2050 = new Date('2050-01-01T00:00:00Z') // eslint-disable-line camelcase