https://github.com/spider-gazelle/ntlm

NTLM authentication for crystal lang
https://github.com/spider-gazelle/ntlm

Last synced: 2 months ago
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NTLM authentication for crystal lang

• Host: GitHub
• URL: https://github.com/spider-gazelle/ntlm
• Owner: spider-gazelle
• License: mit
• Created: 2020-07-15T13:39:32.000Z (almost 4 years ago)
• Default Branch: master
• Last Pushed: 2021-05-25T10:06:40.000Z (about 3 years ago)
• Last Synced: 2024-01-27T09:09:53.782Z (5 months ago)
• Language: Crystal
• Size: 24.4 KB
• Stars: 4
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Lists

• awesome-crystal - ntlm - NTLM authentication (HTTP)

README

        
# Crystal Lang NTLM Auth

[![CI](https://github.com/spider-gazelle/ntlm/actions/workflows/ci.yml/badge.svg)](https://github.com/spider-gazelle/ntlm/actions/workflows/ci.yml)

Communicate with servers that implement NTLM auth.

## Installation

1. Add the dependency to your `shard.yml`:

   ```yaml

   dependencies:

     ntlm:

       github: spider-gazelle/ntlm

   ```

2. Run `shards install`

## Usage

### Authenticate a HTTP request

```crystal

require "http/client"

require "ntlm"

route = "/terrible/soap/api"

username = "username"

password = "password"

# NOTE:: domain is not always required, this can sometimes be left `nil`

domain = "DOMAIN"

client = HTTP::Client.new "corporate.service"

response = client.get route

if response.status_code == 401 && response.headers["WWW-Authenticate"]?

  supported = response.headers.get("WWW-Authenticate")

  raise "doesn't support NTLM auth: #{supported}" unless supported.includes?("NTLM")

  # Negotiate NTLM

  response = client.get route, HTTP::Headers{"Authorization" => NTLM.negotiate_http(domain)}

  # Extract the challenge

  raise "unexpected response #{response.status_code}" unless response.status_code == 401 && response.headers["WWW-Authenticate"]?

  challenge = response.headers["WWW-Authenticate"]

  # Authenticate the client

  response = client.get route, HTTP::Headers{"Authorization" => NTLM.authenticate_http(challenge, username, password)}

end

response

```