From 2d725e9fe05df9f9745a1f31304b9b7cdf419878 Mon Sep 17 00:00:00 2001
From: billchurch <wmchurch@gmail.com>
Date: Tue, 12 Dec 2017 15:02:19 -0500
Subject: [PATCH] implement global keep alive option

keepaliveInterval in config.json. time in ms, 0=disable
---
 app.js      | 3 ++-
 config.json | 3 ++-
 socket.js   | 1 +
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/app.js b/app.js
index 54441bb..950a7bf 100644
--- a/app.js
+++ b/app.js
@@ -54,7 +54,8 @@ app.get('/ssh/host/:host?', function (req, res, next) {
     },
     readyTimeout: (validator.isInt(req.query.readyTimeout + '', {min: 1, max: 300000}) &&
       req.query.readyTimeout) || config.ssh.readyTimeout,
-    verify: config.verify || false
+    verify: config.verify || false,
+    keepaliveInterval: config.keepaliveInterval || 0
   }
   if (req.session.ssh.header.name) validator.escape(req.session.ssh.header.name)
   if (req.session.ssh.header.background) validator.escape(req.session.ssh.header.background)
diff --git a/config.json b/config.json
index 738373a..d8b06ad 100644
--- a/config.json
+++ b/config.json
@@ -59,5 +59,6 @@
     "server": false  // not yet implemented
   },
   "accesslog": false, // http style access logging to console.log
-  "verify": false // verification of host key hashes, see hostkeyhashes.json
+  "verify": false, // verification of host key hashes, see hostkeyhashes.json
+  "keepaliveInterval": 0 // value in milliseconds, 0 = disable
 }
diff --git a/socket.js b/socket.js
index c07cacd..d9af678 100644
--- a/socket.js
+++ b/socket.js
@@ -130,6 +130,7 @@ module.exports = function socket (socket) {
           return (noverify = true)
         }
       },
+      keepaliveInterval: socket.request.session.ssh.keepaliveInterval,
       debug: debug('ssh2')
     })
   } else {