balena-cli/lib/auth/server.coffee

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###
Copyright 2016 Resin.io
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
###
express = require('express')
path = require('path')
bodyParser = require('body-parser')
Promise = require('bluebird')
resin = require('resin-sdk-preconfigured')
utils = require('./utils')
createServer = ({ port, isDev } = {}) ->
app = express()
app.use bodyParser.urlencoded
extended: true
app.set('view engine', 'ejs')
app.set('views', path.join(__dirname, 'pages'))
if isDev
app.use(express.static(path.join(__dirname, 'pages', 'static')))
server = app.listen(port)
return { app, server }
###*
# @summary Await for token
# @function
# @protected
#
# @param {Object} options - options
# @param {String} options.path - callback path
# @param {Number} options.port - http port
#
# @example
# server.awaitForToken
# path: '/auth'
# port: 9001
# .then (token) ->
# console.log(token)
###
exports.awaitForToken = (options) ->
{ app, server } = createServer(port: options.port)
return new Promise (resolve, reject) ->
closeServer = (errorMessage, successPayload) ->
server.close ->
if errorMessage
reject(new Error(errorMessage))
return
resolve(successPayload)
renderAndDone = ({ request, response, viewName, errorMessage, statusCode, token }) ->
return getContext(viewName)
.then (context) ->
response.status(statusCode || 200).render(viewName, context)
request.connection.destroy()
closeServer(errorMessage, token)
app.post options.path, (request, response) ->
token = request.body.token?.trim()
Promise.try ->
if not token
throw new Error('No token')
return utils.isTokenValid(token)
.tap (isValid) ->
if not isValid
throw new Error('Invalid token')
.then ->
renderAndDone({ request, response, viewName: 'success', token })
.catch (error) ->
renderAndDone({
request, response, viewName: 'error',
statusCode: 401, errorMessage: error.message
})
app.use (request, response) ->
response.status(404).send('Not found')
closeServer('Unknown path or verb')
exports.getContext = getContext = (viewName) ->
if viewName is 'success'
return Promise.props
dashboardUrl: resin.settings.get('dashboardUrl')
return Promise.resolve({})