feat(usync-emails): populate user email iff email provided or usernam…

…e is email (#788)

fence/sync/sync_users.py

@@ -14,6 +14,7 @@
 
 import paramiko
 from cdislogging import get_logger
+from email_validator import validate_email, EmailNotValidError
 from gen3authz.client.arborist.client import ArboristError
 from gen3users.validation import validate_user_yaml
 from paramiko.proxy import ProxyCommand
@@ -217,12 +218,20 @@ def from_file(cls, filepath, encrypted=True, key=None, logger=None):
                 resource_permissions[resource] = set(project["privilege"])
 
             user_info[username] = {
-                "email": details.get("email", username),
+                "email": details.get("email", ""),
                 "display_name": details.get("display_name", ""),
                 "phone_number": details.get("phone_number", ""),
                 "tags": details.get("tags", {}),
                 "admin": details.get("admin", False),
             }
+            if not details.get("email"):
+                try:
+                    valid = validate_email(
+                        username, allow_smtputf8=False, check_deliverability=False
+                    )
+                    user_info[username]["email"] = valid.email
+                except EmailNotValidError:
+                    pass
             projects[username] = privileges
             user_abac[username] = resource_permissions
 

requirements.txt

@@ -10,6 +10,7 @@ cdiserrors==0.1.2
 cdispyutils==1.0.4
 cryptography==2.8
 datamodelutils==0.4.5
+email_validator==1.1.1
 Flask==1.1.1
 Flask-CORS==3.0.3
 Flask_OAuthlib==0.9.4

setup.py

@@ -12,6 +12,7 @@
         "boto3>=1.5,<1.6",
         "cached_property>=1.5.1,<2.0.0",
         "cryptography==2.8",
+        "email_validator~=1.1.1",
         "flask-restful>=0.3.6,<1.0.0",
         "Flask>=1.1.1,<2.0.0",
         "Flask-CORS>=3.0.3,<4.0.0",