make hotp invalid after password reset

CHANGELOG.md

@@ -48,3 +48,4 @@ Please add a _short_ line describing the PR you make, if the PR implements a spe
 - Catch KeyNotFoundError when user tries to give access to a project they themselves do not have access to ([#1045](https://github.com/ScilifelabDataCentre/dds_web/pull/1045))
 - Display an error message when the user makes too many authentication requests. ([#1034](https://github.com/ScilifelabDataCentre/dds_web/pull/1034))
 - New endpoint for Unit Personnel and Admins to list the other Unit Personnel / Admins within their project ([#1050](https://github.com/ScilifelabDataCentre/dds_web/pull/1050))
+- Make previous HOTP invalid at password reset ()

dds_web/database/models.py

@@ -461,6 +461,11 @@ def generate_HOTP_token(self):
         hotp = twofactor_hotp.HOTP(self.hotp_secret, 8, hashes.SHA512())
         return hotp.generate(self.hotp_counter)
 
+    def reset_current_HOTP(self):
+        """Make the previous HOTP as invalid by nulling issue time and increasing counter."""
+        self.hotp_issue_time = None
+        self.hotp_counter += 1
+
     def verify_HOTP(self, token):
         """Verify the HOTP token.
 

dds_web/web/user.py

@@ -372,6 +372,9 @@ def reset_password(token):
 
     # Validate form
     if form.validate_on_submit():
+        # Clear out hotp
+        user.reset_current_HOTP()
+
         # Delete project user keys for user
         for project_user_key in user.project_user_keys:
             db.session.delete(project_user_key)