move some pair stuff to lamassu-admin-server

lib/app.js

@@ -9,7 +9,7 @@ var plugins = require('./plugins')
 var logger = require('./logger')
 var configManager = require('./config-manager')
 
-const db = require('./db')
+const pair = require('./pair')
 
 module.exports = function (options) {
   var app = express()
@@ -64,11 +64,15 @@ module.exports = function (options) {
 
       authMiddleware = function (req, res, next) {
         const deviceId = req.connection.getPeerCertificate().fingerprint
-        const sql = 'select id from devices where device_id=$1 and authorized=$2'
-        db.one(sql, [deviceId, true])
-        .then(() => {
+
+        return pair.isPaired(deviceId)
+        .then(r => {
+          if (r) {
             req.deviceId = deviceId
-          next()
+            return next()
+          }
+
+          throw new Error('Unauthorized')
         })
         .catch(e => res.status(403).end())
       }

lib/pair.js

@@ -1,26 +1,6 @@
-const fs = require('fs')
-const pify = require('pify')
-const readFile = pify(fs.readFile)
 const path = require('path')
-const crypto = require('crypto')
 const db = require('./db')
 
-const CA_PATH = path.resolve(__dirname, '..', 'ca-cert.pem')
-
-function totem (ipAddress) {
-  return readFile(CA_PATH)
-  .then(data => {
-    const caHash = crypto.createHash('sha256').update(data).digest()
-    const token = crypto.randomBytes(32)
-    const ip = Buffer.from(ipAddress.split('.').map(s => parseInt(s, 10)))
-    const buf = Buffer.concat([ip, caHash, token])
-    const sql = 'insert into pairing_tokens (token) values ($1)'
-
-    return db.none(sql, [token.toString('hex')])
-    .then(() => buf.toString('base64'))
-  })
-}
-
 function pair (token, deviceId) {
   const sql = `delete from pairing_tokens
     where token=$1
@@ -42,4 +22,4 @@ function isPaired (deviceId) {
   .then(() => true)
 }
 
-module.exports = {totem, pair, isPaired}
+module.exports = {totem, pair, unpair, isPaired}