Basic disabling of TFA

src/main/java/cc/pulseapp/api/controller/v1/UserController.java

@@ -97,6 +97,17 @@ public final class UserController {
         return ResponseEntity.ok(userService.enableTwoFactor(input));
     }
 
+    /**
+     * A POST endpoint to disable TFA for a useer.
+     *
+     * @return the disabled response
+     */
+    @PostMapping("/disable-tfa") @ResponseBody @NonNull
+    public ResponseEntity<Map<String, Object>> disableTwoFactor() {
+        userService.disableTwoFactor();
+        return ResponseEntity.ok(Map.of("success", true));
+    }
+
     /**
      * A POST endpoint to logout the user.
      *

src/main/java/cc/pulseapp/api/model/user/User.java

@@ -78,6 +78,15 @@ public final class User {
         flags |= flag.bitwise();
     }
 
+    /**
+     * Remove a flag from this user.
+     *
+     * @param flag the flag to remove
+     */
+    public void removeFlag(@NonNull UserFlag flag) {
+        flags &= ~flag.bitwise();
+    }
+
     /**
      * Check if this user has a given flag.
      *

src/main/java/cc/pulseapp/api/service/UserService.java

@@ -222,6 +222,17 @@ public final class UserService {
         return originalBackupCodes;
     }
 
+    /**
+     * Disable two-factor auth for the
+     * currently authenticated user.
+     */
+    public void disableTwoFactor() {
+        User user = authService.getAuthenticatedUser();
+        user.setTfa(null);
+        user.removeFlag(UserFlag.TFA_ENABLED);
+        userRepository.save(user);
+    }
+
     /**
      * Logout the user.
      */