@ewsjs/ntlm-client

@ewsjs/ntlm-client (original: ntlm-client)

A node.js NTLM client with support for NTLM and NTLMv2 authentication, forked from clncln1/node-ntlm-client, see reason for forking and the PR https://github.com/clncln1/node-ntlm-client/pull/4 which is stuck at the time of publishing

npm install @ewsjs/ntlm-client

UPDATE 3.0

Fixes node 18+ issues with removed md4 and des ciphers, solution ref https://github.com/SamDecrock/node-http-ntlm/pull/107

API

request(options) (OPTIONAL)

request is removed from dependency. to use this you have to add request in dependency and import like this const ntlmrequest = require('@ewsjs/ntlm-client/lib/ntlmrequest'). You also need to add extend in dependency.

A convenience function that tries to authenticate against a given URL using the request module. If NTLM is not supported, it will fallback to Basic Auth.

• Arguments
  • options an object holding below options for the authentication process:
    • uri the target URL
    • method the HTTP verb
    • username
    • password
    • request this is optional. An object that holds options that should be passed to the request instance
• Returns
  • Promise when resolved, the request instance, the result and the response body will be passed

---

createType1Message([workstation, target])

Creates a type 1 NTLM message to initialize the NTLM handshake

• Arguments
  • workstation Optional. If undefined, os.hostname() will be used
  • target Optional. This is the domain/host we are trying to authenticate against.
• Returns
  • string Complete NTLM string that should be sent to the server in the Authentication header

---

decodeType2Message(str)

Decodes a type 2 message received from the server including the NTLM challenge

• Arguments
  • str Either the base64 encoded type 2 message, or the complete WWW-Authenticate header, or an object containg the response headers (http.IncomingMessage)
• Returns
  • type2Message An object containing the following information about the received type 2 message: flags, encoding, version, challenge, targetName, targetInfo.

---

createType3Message(type2Message, username, password[, workstation, target])

Creates a type 3 message based on the type 2 message received from the server.

• Arguments
  • type2Message The decoded type 2 message object
  • username
  • password
  • workstation Optional. If falsy, os.hostname() will be used
  • target Optional. If falsy, the target name from the type 2 message will be used. This is the domain/host we are trying to authenticate against.
• Returns
  • string Complete NTLM string that should be sent to the server in the Authentication header