github-oauth2/index.js

A utility to get Oauth2 tokens from github for use in api calls.

var request = require("request")
  , credential = require("git-credential")
  , USER_AGENT = require("./user-agent")
  , ap = require("ap")

var host = "https://api.github.com/authorizations"

module.exports = get_token

// TODO make this a writable stream, (as well?) so you just emit note, note_url
// and scopes with the data event.)

function prep(note, note_url, scopes){
  return get_token

  function get_token(ready){
    var f = ap([ready], check_for)
    credential(f)
  }

  function check_for(ready, error, credentials){
    if (error){ 
      console.log("request failed")
      console.log(""+error)
    }
    var r = {
      url: host
    , headers: {"User-Agent": USER_AGENT}
    , auth: credentials
    }
    request.get(r, function(error, response){
      if (error) {
        return ready(error)
      }
      if (response.statusCode != 200) {
        return ready(response.body, response.statusCode)
      }

      //otherwise search for a token 
      var token 
      var token_found = JSON.parse(response.body).some(function(d){
        token = d.token
        return d.note == note
      })
      if (token_found) {
        ready(error, token)
      } else {
        get_new_token(ready, credentials)
      }
    })
  }


  function get_new_token(ready, credentials){
    var r = {
        url:  host
      , headers: {
          "User-Agent": USER_AGENT
        }
      , body: JSON.stringify({
            scopes: scopes
          , note: note
          , note_url: note_url
        })
      , 'auth': credentials
    }
    request.post(r, function(err, response, body){
      ready(err, JSON.parse(body).token)
    })
  }
}