feat: Store a session key in the browser's SessionStorage

src/components/app.tsx

@@ -34,12 +34,18 @@ interface IState {
     drawerOpen: boolean;
 }
 
+// TODO: Replace the sessionStorage with localStorage
 export default class Application extends React.Component<{}, IState> {
     constructor(props: any) {
         super(props);
 
+        // Load a key from the SessionStorage
+        const authKey = window.sessionStorage.getItem("authKey") || null;
+        // TODO
+        const loggedIn = authKey !== null;
+
         this.state = {
-            loggedIn: false,
+            loggedIn,
             drawerOpen: false,
         };
 
@@ -186,6 +192,23 @@ export default class Application extends React.Component<{}, IState> {
 
                         <Divider />
 
+                        <ListItem button onClick={() => {
+                            // Remove the auth token from the SessionStorage
+                            window.sessionStorage.removeItem("authKey");
+                            // Set the loggedIn State to false
+                            this.setState({
+                                loggedIn: false,
+                                // In case the drawer was open
+                                drawerOpen: false,
+                            });
+                        }}>
+                            <ListItemText>
+                                Abmelden
+                            </ListItemText>
+                        </ListItem>
+
+                        <Divider />
+
                         <ListItem button onClick={() => window.location = "https://gitlab.com/Polynomdivision/Lateinicus/tree/master"}>
                             <ListItemIcon>
                                 <InfoIcon />

src/pages/login.tsx

@@ -66,7 +66,8 @@ export default class LoginPage extends React.Component<{}, IState> {
 
         const { username, password } = this.state;
         this.props.login(username, password).then((res) => {
-            // Don't even do anything here!
+            // Set the session key
+            window.sessionStorage.setItem("authKey", "test123");
         }, (err) => {
             load(false);
             showSnackbar("Failed to log in");