Implement session list

client/css/style.css

@@ -252,6 +252,14 @@ kbd {
 	color: #7f8c8d;
 }
 
+.session-list strong {
+	display: block;
+}
+
+.session-list p {
+	margin-bottom: 10px;
+}
+
 #chat .invite .from::before {
 	content: "\f003"; /* http://fontawesome.io/icon/envelope-o/ */
 	color: #2ecc40;
@@ -668,6 +676,7 @@ kbd {
 	width: 100%;
 }
 
+#windows p,
 #windows label,
 #settings .error {
 	font-size: 14px;

client/index.html

@@ -198,15 +198,14 @@
 						</div>
 					</form>
 				</div>
-				<div id="settings" class="window">
+				<div id="settings" class="window" data-type="settings">
 					<div class="header">
 						<button class="lt" aria-label="Toggle channel list"></button>
 					</div>
 					<div class="container">
+						<h1 class="title">Settings</h1>
+
 						<div class="row">
-							<div class="col-sm-12">
-								<h1 class="title">Settings</h1>
-							</div>
 							<div class="col-sm-12">
 								<h2>Messages</h2>
 							</div>
@@ -380,6 +379,18 @@
 								<textarea class="input" name="userStyles" id="user-specified-css-input" placeholder="You can override any style with CSS here"></textarea>
 							</div>
 						</div>
+
+						{{#unless public}}
+							<div class="session-list">
+								<h2>Sessions</h2>
+
+								<h3>Current session</h3>
+								<div id="session-current"></div>
+
+								<h3>Other sessions</h3>
+								<div id="session-list"></div>
+							</div>
+						{{/unless}}
 					</div>
 				</div>
 

client/js/lounge.js

@@ -383,8 +383,9 @@ $(function() {
 		}
 		document.title = title;
 
+		const type = chan.data("type");
 		var placeholder = "";
-		if (chan.data("type") === "channel" || chan.data("type") === "query") {
+		if (type === "channel" || type === "query") {
 			placeholder = `Write to ${chan.data("title")}`;
 		}
 		input.attr("placeholder", placeholder);
@@ -404,6 +405,11 @@ $(function() {
 			socket.emit("names", {target: self.data("id")});
 		}
 
+		if (type === "settings") {
+			$("#session-list").html("<p>Loading…</p>");
+			socket.emit("sessions:get");
+		}
+
 		focus();
 	});
 

client/js/socket-events/index.js

@@ -17,3 +17,4 @@ require("./sync_sort");
 require("./topic");
 require("./users");
 require("./sign_out");
+require("./sessions_list");

client/js/socket-events/sessions_list.js

@@ -0,0 +1,31 @@
+"use strict";
+
+const $ = require("jquery");
+const socket = require("../socket");
+const templates = require("../../views");
+
+socket.on("sessions:list", function(data) {
+	data.sort((a, b) => b.lastUse - a.lastUse);
+
+	let html = "";
+	data.forEach((connection) => {
+		if (connection.current) {
+			$("#session-current").html(templates.session(connection));
+			return;
+		}
+
+		html += templates.session(connection);
+	});
+
+	if (html.length === 0) {
+		html = "<p><em>You are not currently logged in to any other device.</em></p>";
+	}
+
+	$("#session-list").html(html);
+});
+
+$("#settings").on("click", ".remove-session", function() {
+	socket.emit("sign-out", $(this).data("token"));
+
+	return false;
+});

client/views/index.js

@@ -34,6 +34,7 @@ module.exports = {
 	msg_unhandled: require("./msg_unhandled.tpl"),
 	network: require("./network.tpl"),
 	image_viewer: require("./image_viewer.tpl"),
+	session: require("./session.tpl"),
 	unread_marker: require("./unread_marker.tpl"),
 	user: require("./user.tpl"),
 	user_filtered: require("./user_filtered.tpl"),

client/views/session.tpl

@@ -0,0 +1,17 @@
+<p>
+{{#if current}}
+	<strong>{{agent}}</strong>
+	<a href="https://ipinfo.io/{{ip}}" target="_blank" rel="noopener">{{ip}}</a>
+{{else}}
+	<button class="btn pull-right remove-session" data-token="{{token}}">Disconnect</button>
+
+	<strong>{{agent}}</strong>
+	<a href="https://ipinfo.io/{{ip}}" target="_blank" rel="noopener">{{ip}}</a>
+	<br>
+	{{#if active}}
+		<em>Currently active</em>
+	{{else}}
+		Last used on <time>{{localetime lastUse}}</time>
+	{{/if}}
+{{/if}}
+</p>

src/server.js

@@ -378,8 +378,32 @@ function initializeClient(socket, client, token, lastMessage) {
 		client.unregisterPushSubscription(token);
 	});
 
-	socket.on("sign-out", () => {
-		delete client.config.sessions[token];
+	const sendSessionList = () => {
+		const sessions = _.map(client.config.sessions, (session, sessionToken) => ({
+			current: sessionToken === token,
+			active: _.find(client.attachedClients, (u) => u.token === sessionToken) !== undefined,
+			lastUse: session.lastUse,
+			ip: session.ip,
+			agent: session.agent,
+			token: sessionToken, // TODO: Ideally don't expose actual tokens to the client
+		}));
+
+		socket.emit("sessions:list", sessions);
+	};
+
+	socket.on("sessions:get", sendSessionList);
+
+	socket.on("sign-out", (tokenToSignOut) => {
+		// If no token provided, sign same client out
+		if (!tokenToSignOut) {
+			tokenToSignOut = token;
+		}
+
+		if (!(tokenToSignOut in client.config.sessions)) {
+			return;
+		}
+
+		delete client.config.sessions[tokenToSignOut];
 
 		client.manager.updateUser(client.name, {
 			sessions: client.config.sessions
@@ -389,7 +413,21 @@ function initializeClient(socket, client, token, lastMessage) {
 			}
 		});
 
-		socket.emit("sign-out");
+		_.map(client.attachedClients, (attachedClient, socketId) => {
+			if (attachedClient.token !== tokenToSignOut) {
+				return;
+			}
+
+			const socketToRemove = manager.sockets.of("/").connected[socketId];
+
+			socketToRemove.emit("sign-out");
+			socketToRemove.disconnect();
+		});
+
+		// Do not send updated session list if user simply logs out
+		if (tokenToSignOut !== token) {
+			sendSessionList();
+		}
 	});
 
 	socket.join(client.id);