notification fixes for production

apps/cli/utilities/contacts_wrest/setup.py

@@ -30,7 +30,7 @@ with open("contacts_wrest/_version.py", "r") as vfile:
 README = Path("README.md").read_text()
 
 
-requires = ["dsnparse", "mysqlclient", "psycopg2", "pycapo", "pymysql"]
+requires = ["dsnparse==0.1.15", "mysqlclient", "psycopg2", "pycapo", "pymysql"]
 
 setup(
     name="ssa-" + Path().absolute().name,

shared/workspaces/setup.py

@@ -35,6 +35,7 @@ requires = [
     "requests",
     "transaction",
     "immutable_views",
+    "email-validator==2.0.0",
 ]
 
 setup(

shared/workspaces/workspaces/notification/services/notification_service.py

@@ -26,6 +26,7 @@ import smtplib
 from typing import Dict
 
 import requests
+from email_validator import validate_email, EmailNotValidError
 from pycapo import CapoConfig
 
 from workspaces.notification.services.interfaces import (
@@ -76,32 +77,43 @@ class NotificationService(NotificationServiceIF):
         if not receiver_emails:
             return "No PI email found."
 
-        logger.info(f">> In send_email, sending email to: {receiver_emails}")
-        logger.info(f">> The parameters are: {parameters}")
-        template = self.info.lookup_template(template_name)
+        # verify email addresses are valid. Drop invalid addresses
+        for address in receiver_emails:
+            try:
+                validate_email(address)
+            except EmailNotValidError as e:
+                logger.info(f"Invalid email address {address} found, removing from receivers list." + e)
+                receiver_emails.remove(address)
 
-        if template is None:
-            logger.info("No template '" + template_name + "' found.")
+        if len(receiver_emails) > 0:
+            logger.info(f">> In send_email, sending email to: {receiver_emails}")
+            logger.info(f">> The parameters are: {parameters}")
+            template = self.info.lookup_template(template_name)
 
-        file = template.render(parameters)
+            if template is None:
+                logger.info("No template '" + template_name + "' found.")
 
-        # Load the headers and email content from the template
-        msg = email.message_from_bytes(file.content)
+            file = template.render(parameters)
 
-        # Attach the 'from', 'to', and 'cc' headers if they weren't set in the template
-        if msg["From"] is None:
-            msg["From"] = sender_email
+            # Load the headers and email content from the template
+            msg = email.message_from_bytes(file.content)
 
-        if msg["To"] is None:
-            msg["To"] = ', '.join(receiver_emails)
+            # Attach the 'from', 'to', and 'cc' headers if they weren't set in the template
+            if msg["From"] is None:
+                msg["From"] = sender_email
 
-        if msg["Cc"] is None and "cc_email" in parameters and parameters["cc_email"] is not None:
-            if isinstance(parameters["cc_email"], list):
-                msg["Cc"] = ', '.join(parameters["cc_email"])
-            else:
-                msg["Cc"] = parameters["cc_email"]
+            if msg["To"] is None:
+                msg["To"] = ", ".join(receiver_emails)
 
-        with smtplib.SMTP(smtp_server) as server:
-            r = server.send_message(msg)
+            if msg["Cc"] is None and "cc_email" in parameters and parameters["cc_email"] is not None:
+                if isinstance(parameters["cc_email"], list):
+                    msg["Cc"] = ", ".join(parameters["cc_email"])
+                else:
+                    msg["Cc"] = parameters["cc_email"]
 
-        return r
+            with smtplib.SMTP(smtp_server) as server:
+                r = server.send_message(msg)
+
+            return r
+        else:
+            logger.info("No valid email addresses provided. Skipping sending mail.")