From 7573b86946aedd5f4d86bc6b5280f1e61850ffb9 Mon Sep 17 00:00:00 2001
From: ansuz <ansuz@transitiontech.ca>
Date: Thu, 4 May 2017 11:36:24 +0200
Subject: [PATCH] call back with error if an RPC is made while disconnected

---
 www/common/rpc.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/www/common/rpc.js b/www/common/rpc.js
index b69a5ce5a..2e1114729 100644
--- a/www/common/rpc.js
+++ b/www/common/rpc.js
@@ -102,9 +102,16 @@ types of messages:
             timeouts: {}, // timeouts
             pending: {}, // callbacks
             cookie: null,
+            connected: true,
         };
 
         var send = function (type, msg, cb) {
+            if (!ctx.connected && type !== 'COOKIE') {
+                return void window.setTimeout(function () {
+                    cb('DISCONNECTED');
+                });
+            }
+
             // construct a signed message...
 
             var data = [type, msg];
@@ -127,6 +134,17 @@ types of messages:
             onMsg(ctx, msg);
         });
 
+        network.on('disconnect', function (reason) {
+            ctx.connected = false;
+        });
+
+        network.on('reconnect', function (uid) {
+            send('COOKIE', "", function (e, msg) {
+                if (e) { return void cb(e); }
+                ctx.connected = true;
+            });
+        });
+
         send('COOKIE', "", function (e, msg) {
             if (e) { return void cb(e); }
             // callback to provide 'send' method to whatever needs it