Audit logging feature files

backend/routes/users.js

@@ -2,7 +2,7 @@
 const express = require('express');
 const bcrypt = require('bcryptjs');
 
-function createUsersRouter(db, requireAuth, requireRole) {
+function createUsersRouter(db, requireAuth, requireRole, logAudit) {
     const router = express.Router();
 
     // All routes require admin role
@@ -81,6 +81,16 @@ function createUsersRouter(db, requireAuth, requireRole) {
                 );
             });
 
+            logAudit(db, {
+                userId: req.user.id,
+                username: req.user.username,
+                action: 'user_create',
+                entityType: 'user',
+                entityId: String(result.id),
+                details: { created_username: username, role: role || 'viewer' },
+                ipAddress: req.ip
+            });
+
             res.status(201).json({
                 message: 'User created successfully',
                 user: {
@@ -160,6 +170,23 @@ function createUsersRouter(db, requireAuth, requireRole) {
                 );
             });
 
+            const updatedFields = {};
+            if (username) updatedFields.username = username;
+            if (email) updatedFields.email = email;
+            if (role) updatedFields.role = role;
+            if (typeof is_active === 'boolean') updatedFields.is_active = is_active;
+            if (password) updatedFields.password_changed = true;
+
+            logAudit(db, {
+                userId: req.user.id,
+                username: req.user.username,
+                action: 'user_update',
+                entityType: 'user',
+                entityId: String(userId),
+                details: updatedFields,
+                ipAddress: req.ip
+            });
+
             // If user was deactivated, delete their sessions
             if (is_active === false) {
                 await new Promise((resolve) => {
@@ -187,6 +214,14 @@ function createUsersRouter(db, requireAuth, requireRole) {
         }
 
         try {
+            // Look up the user before deleting
+            const targetUser = await new Promise((resolve, reject) => {
+                db.get('SELECT username FROM users WHERE id = ?', [userId], (err, row) => {
+                    if (err) reject(err);
+                    else resolve(row);
+                });
+            });
+
             // Delete sessions first (foreign key)
             await new Promise((resolve) => {
                 db.run('DELETE FROM sessions WHERE user_id = ?', [userId], () => resolve());
@@ -204,6 +239,16 @@ function createUsersRouter(db, requireAuth, requireRole) {
                 return res.status(404).json({ error: 'User not found' });
             }
 
+            logAudit(db, {
+                userId: req.user.id,
+                username: req.user.username,
+                action: 'user_delete',
+                entityType: 'user',
+                entityId: String(userId),
+                details: { deleted_username: targetUser ? targetUser.username : 'unknown' },
+                ipAddress: req.ip
+            });
+
             res.json({ message: 'User deleted successfully' });
         } catch (err) {
             console.error('Delete user error:', err);