Last user activity now marked on humie-friendly page-loads and last-socket disconnects, ensuring accurate 'online' status when disconnected from a channel.

src/utils/presenceUtils.js

@@ -0,0 +1,75 @@
+/*Canopy - The next generation of stoner streaming software
+Copyright (C) 2024-2025 Rainbownapkin and the TTN Community
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.*/
+
+//local includes
+const userSchema = require('../schemas/user/userSchema');
+
+//User activity map to keep us from constantly reading off of the DB
+let activityMap = new Map();
+
+//How much difference between last write and now until we hit the DB again (in millis)
+//Defaults to two minutes
+const tolerance = 2 * (60 * 1000);
+
+module.exports.presenceMiddleware = function(req, res, next){
+    //Pull user from session
+    const user = req.session.user;
+
+    //if we have a user object
+    if(user != null){
+        //Handle Presence
+        module.exports.handlePresence(user.user);
+    }
+
+    //Go on to next part of the middleware chain
+    next();
+}
+
+module.exports.handlePresence = async function(user, userDB, noSave = false){
+    //If we don't have a user
+    if(user == null || user == ''){
+        //Drop that shit
+        return;
+    }
+
+    //Get current date as epoch (millis)
+    const now = new Date();
+    const millis = now.getTime();
+
+    //Check last user activity
+    const activity = activityMap.get(user);
+
+    //If we have no recorded activity, or if the the time between now and the last activity is greater than two minutes
+    if(activity == null || millis - activity > tolerance){
+        //Set last user activity 
+        activityMap.set(user, millis);
+
+        //If we wheren't handed a free user doc
+        if(userDB == null){
+            //Pull one from the username
+            userDB = await userSchema.userModel.findOne({user: user});
+        }
+
+        //Set last active in user's DB document
+        userDB.lastActive = now;
+
+        //If saving is enabled
+        if(!noSave){
+            //Save document to 
+            await userDB.save();
+        }
+    }
+}