feat: track login sessions for admin dashboard reporting

public/language/en-GB/admin/dashboard.json

@@ -2,6 +2,7 @@
 	"forum-traffic": "Forum Traffic",
 	"page-views": "Page Views",
 	"unique-visitors": "Unique Visitors",
+	"logins": "Logins",
 	"new-users": "New Users",
 	"posts": "Posts",
 	"topics": "Topics",

src/controllers/admin/dashboard.js

@@ -117,14 +117,16 @@ async function getStats() {
 
 	const results = await Promise.all([
 		getStatsForSet('ip:recent', 'uniqueIPCount'),
+		getStatsForSet('sessions:recent', 'loginCount'),
 		getStatsForSet('users:joindate', 'userCount'),
 		getStatsForSet('posts:pid', 'postCount'),
 		getStatsForSet('topics:tid', 'topicCount'),
 	]);
 	results[0].name = '[[admin/dashboard:unique-visitors]]';
-	results[1].name = '[[admin/dashboard:new-users]]';
+	results[1].name = '[[admin/dashboard:logins]]';
-	results[2].name = '[[admin/dashboard:posts]]';
+	results[2].name = '[[admin/dashboard:new-users]]';
-	results[3].name = '[[admin/dashboard:topics]]';
+	results[3].name = '[[admin/dashboard:posts]]';
+	results[4].name = '[[admin/dashboard:topics]]';
 	cache.set('admin:stats', results, 600000);
 	return results;
 }

src/controllers/authentication.js

@@ -357,6 +357,7 @@ authenticationController.onSuccessfulLogin = async function (req, uid) {
 			user.updateLastOnlineTime(uid),
 			user.updateOnlineUsers(uid),
 			analytics.increment('logins'),
+			db.incrObjectFieldBy('global', 'loginCount', 1),
 		]);
 		if (uid > 0) {
 			await db.setObjectField(`uid:${uid}:sessionUUID:sessionId`, uuid, req.sessionID);

src/user/auth.js

@@ -111,7 +111,7 @@ module.exports = function (User) {
 			return;
 		}
 		await cleanExpiredSessions(uid);
-		await db.sortedSetAdd(`uid:${uid}:sessions`, Date.now(), sessionId);
+		await db.sortedSetsAdd([`uid:${uid}:sessions`, 'sessions:recent'], Date.now(), sessionId);
 		await revokeSessionsAboveThreshold(uid, meta.config.maxUserSessions);
 	};