chg: Sanity check in email send

lookyloo/lookyloo.py

@@ -563,6 +563,7 @@ class Lookyloo():
             s.quit()
         except Exception as e:
             self.logger.exception(e)
+            self.logger.warning(msg.as_string())
 
     def _ensure_meta(self, capture_dir: Path, tree: CrawledTree) -> None:
         metafile = capture_dir / 'meta'

website/web/__init__.py

@@ -387,6 +387,9 @@ def cache_tree(tree_uuid: str):
 @app.route('/tree/<string:tree_uuid>/send_mail', methods=['POST', 'GET'])
 def send_mail(tree_uuid: str):
     email: str = request.form.get('email') if request.form.get('email') else ''  # type: ignore
+    if '@' not in email:
+        # skip clearly incorrect emails
+        email = ''
     comment: str = request.form.get('comment') if request.form.get('comment') else ''  # type: ignore
     lookyloo.send_mail(tree_uuid, email, comment)
     return redirect(url_for('tree', tree_uuid=tree_uuid))