objectGUID: Buffer encoding issue

Hey there, seems like the returned objectGUID during a search on the active directory has an encoding issue.

Once returned and converted to a readable UUID, it doesn’t matched the real value provided by the AD. Is it a know issue or something wrong on my side?

Search response:

// Excepted
{ objectGUID: 'â\u0018!;œóì@¯Wa8–`ß' }
// 3b2118e2-f39c-40ec-af57-6190389660df

// Returned
{ objectGUID: '�\u0018!;���@�Wa�8�`�' }
// 3b2118fd-fdfd-40fd-fd57-61fd38fd60fd

Temporary workaround:

export const formatEntry = entryObject => {
    const { object, attributes } = entryObject;
    const objectGUIDAttribute = attributes.find(
        attr => attr.type === 'objectGUID'
    );

    return {
        ...object,
        objectGUID: Buffer.from(
            objectGUIDAttribute.buffers[0],
            'hex'
        ).toString('binary')
    };
};

Convert objectGUID to readable UUID:

export const objectGUIDToUUID = objectGUID => {
    const hex = Buffer.from(objectGUID, 'binary').toString('hex');

    const p1 =
        hex.substr(-26, 2) +
        hex.substr(-28, 2) +
        hex.substr(-30, 2) +
        hex.substr(-32, 2);

    const p2 = hex.substr(-22, 2) + hex.substr(-24, 2);
    const p3 = hex.substr(-18, 2) + hex.substr(-20, 2);
    const p4 = hex.substr(-16, 4);
    const p5 = hex.substr(-12, 12);

    return [p1, p2, p3, p4, p5].join('-');
};

[crazyx13th]

this is my small transfer-function (you can remove the comment… only for understanding)

export const objectGUIDToUUID = (objectGUID)=>
{
  const hexValue = Buffer.from(objectGUID, 'binary').toString('hex')

  return hexValue.replace(
  //   (   $1:A4   )(   $2:A3   )(   $3:A2   )(   $4:A1   )(   $5:B2   )(   $6:B1   )(   $7:C2   )(   $8:C1   )(   $9:D    )(   $10:F    )
      /([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{4})([0-9a-f]{10})/,
      '$4$3$2$1-$6$5-$8$7-$9-$10',
  )
}

[tastypackets]

Could this issue possibly be revisited? The binary data gets converted as a UTF-8 string, which does not translate 1-to-1 with raw binary data, because the leading bits contain meta data. Bytes with a decimal value < 128 will work fine, but the other half will not; which is why some of the values in the GUID look fine but others get changed in unexpected (and apparently unrecoverable) ways.

You can get the bin data from attributes on the response.

Like this:

const binaryGUID = entry.attributes.find(attribute => attribute.type === 'objectGUID').buffers[0]