Identify machine name on logging upon clock skew error (#188)

lib/pairing.js

@@ -71,10 +71,17 @@ function authorizeCaDownload (caToken) {
 }
 
 function isPaired (deviceId) {
-  const sql = 'select device_id from devices where device_id=$1 and paired=TRUE'
+  const sql = 'select device_id, name from devices where device_id=$1 and paired=TRUE'
 
   return db.oneOrNone(sql, [deviceId])
-    .then(row => row && row.device_id === deviceId)
+    .then(row => {
+      const deviceName = row.name
+      const isDevicePaired = row && row.device_id === deviceId
+      return {
+        deviceName: deviceName,
+        isDevicePaired: isDevicePaired
+      }
+    })
 }
 
 module.exports = {pair, unpair, authorizeCaDownload, isPaired}

lib/routes.js

@@ -299,7 +299,8 @@ function filterOldRequests (req, res, next) {
   const delta = Date.now() - Date.parse(deviceTime)
 
   if (delta > CLOCK_SKEW) {
-    logger.error('Clock skew with lamassu-machine too high [%ss], adjust lamassu-machine clock', (delta / 1000).toFixed(2))
+    logger.error('Clock skew with lamassu-machine[%s] too high [%ss], adjust lamassu-machine clock',
+      req.deviceName, (delta / 1000).toFixed(2))
   }
 
   if (delta > REQUEST_TTL) return res.status(408).json({error: 'stale'})
@@ -311,8 +312,9 @@ function authorize (req, res, next) {
 
   return pairing.isPaired(deviceId)
     .then(r => {
-      if (r) {
+      if (r.isDevicePaired) {
         req.deviceId = deviceId
+        req.deviceName = r.deviceName
         return next()
       }