Gracefully quit on Ctrl+C

Fixes #268

src/client.js

@@ -490,7 +490,7 @@ Client.prototype.names = function(data) {
 	});
 };
 
-Client.prototype.quit = function() {
+Client.prototype.quit = function(signOut) {
 	const sockets = this.sockets.sockets;
 	const room = sockets.adapter.rooms[this.id];
 
@@ -499,7 +499,10 @@ Client.prototype.quit = function() {
 			const socket = sockets.connected[user];
 
 			if (socket) {
+				if (signOut) {
 					socket.emit("sign-out");
+				}
+
 				socket.disconnect();
 			}
 		}

src/clientManager.js

@@ -62,7 +62,7 @@ ClientManager.prototype.autoloadUsers = function() {
 		_.difference(loaded, updatedUsers).forEach((name) => {
 			const client = _.find(this.clients, {name: name});
 			if (client) {
-				client.quit();
+				client.quit(true);
 				this.clients = _.without(this.clients, client);
 				log.info(`User ${colors.bold(name)} disconnected and removed`);
 			}

src/server.js

@@ -115,6 +115,31 @@ module.exports = function() {
 		new Identification((identHandler) => {
 			manager.init(identHandler, sockets);
 		});
+
+		// Handle ctrl+c and kill gracefully
+		let suicideTimeout = null;
+		const exitGracefully = function() {
+			if (suicideTimeout !== null) {
+				return;
+			}
+
+			// Forcefully exit after 3 seconds
+			suicideTimeout = setTimeout(() => process.exit(1), 3000);
+
+			log.info("Exiting...");
+
+			// Close all client and IRC connections
+			manager.clients.forEach((client) => client.quit());
+
+			// Close http server
+			server.close(() => {
+				clearTimeout(suicideTimeout);
+				process.exit(0);
+			});
+		};
+
+		process.on("SIGINT", exitGracefully);
+		process.on("SIGTERM", exitGracefully);
 	});
 };