Add a service socket to enable out of band access to the process commandline

src/config.js

@@ -116,6 +116,10 @@ var defaults = {
     },
     "channel-storage": {
         type: "file"
+    },
+    "service-socket": {
+        enabled: false,
+        socket: "service.sock"
     }
 };
 

src/servsock.js

@@ -0,0 +1,53 @@
+var fs = require('fs');
+var net = require('net');
+
+export default class ServiceSocket {
+
+    constructor() {
+        this.connections = {};
+    }
+
+    init(handler, socket){
+        this.handler = handler;
+        this.socket = socket;
+
+        fs.stat(this.socket, (err, stats) => {
+            if (err) {
+                return this.openServiceSocket();
+            }
+            fs.unlink(this.socket, (err) => {
+                if(err){
+                    console.error(err); process.exit(0);
+                }
+                return this.openServiceSocket();
+            });
+        });
+    }
+
+    openServiceSocket(){
+        this.server = net.createServer((stream) => {
+            let id = Date.now();
+            this.connections[id] = stream;
+            stream.on('end', () => {
+                delete this.connections[id];
+            });
+            stream.on('data', (msg) => {
+                this.handler(msg.toString());
+            });
+        }).listen(this.socket);
+        process.on('exit', this.closeServiceSocket.bind(this));
+    }
+
+    closeServiceSocket() {
+        if(Object.keys(this.connections).length){
+            let clients = Object.keys(this.connections);
+            while(clients.length){
+                let client = clients.pop();
+                this.connections[client].write('__disconnect');
+                this.connections[client].end();
+            }
+        }
+        this.server.close();
+    }
+
+}