added an email validator

app/controllers/users.py

@@ -31,8 +31,7 @@
 from bson.json_util import dumps
 from app.models.app import App
 from app.helpers.crane_app_logger import logger
-
-
+from app.helpers.email_validator import is_valid_email
 class UsersView(Resource):
 
  def post(self):
@@ -44,8 +43,14 @@ def post(self):
  user_data = request.get_json()
 
  validated_user_data, errors = user_schema.load(user_data)
-
+ 
  email = validated_user_data.get('email', None)
+ print(email)
+ if not is_valid_email(email):
+ print(email)
+ return dict(status='fail', message=f'Invalid email address'), 400
+
+
  client_base_url = os.getenv(
  'CLIENT_BASE_URL',
  f'https://{request.host}/users'

app/helpers/email_validator.py

@@ -0,0 +1,18 @@
+from validate_email import validate_email
+
+def is_valid_email(email: str) -> bool:
+ return validate_email(
+ email_address=email,
+ check_format=True,
+ check_blacklist=True,
+ check_dns=True,
+ dns_timeout=10,
+ check_smtp=True,
+ smtp_timeout=10,
+ smtp_helo_host='my.host.name',
+ smtp_from_address='my@from.addr.ess',
+ smtp_skip_tls=False,
+ smtp_tls_context=None,
+ smtp_debug=False,
+
+ )

requirements.txt

@@ -35,7 +35,6 @@ Flask-RESTful==0.3.9
 Flask-SQLAlchemy==2.4.0
 google-auth==1.6.3
 gunicorn==20.1.0
-idna==2.8
 importlib-metadata==4.8.3
 iniconfig==1.1.1
 ipaddress==1.0.22
@@ -78,7 +77,6 @@ pyxdg==0.25
 PyYAML==6.0
 rave-python==1.2.16
 redis==4.3.6
-requests==2.27.1
 requests-oauthlib==1.2.0
 rsa==4.0
 SecretStorage==2.3.1
@@ -95,3 +93,6 @@ wcwidth==0.2.5
 websocket-client==0.56.0
 Werkzeug==2.0.3
 zipp==3.6.0
+py3-validate-email==1.0.5.post2
+requests>=2.27.1
+idna>=2.5