def send_email(recipient_email,
email_template,
email_params,
email_subject,
non_html_message,
sender_email=None):
if not sender_email:
if Settings.get_by_name("APP_EMAIL"):
sender_email = Settings.get_by_name(
"APP_EMAIL").value # reads from settings
else:
sender_email = "*****@*****.**"
# send web app URL data by default to email template
email_params["app_root_url"] = request.url_root
# render the email HTML body
email_body = render_template(email_template, **email_params)
# params sent to the background task
payload = {
"recipient_email": recipient_email,
"email_subject": email_subject,
"sender_email": sender_email,
"email_body": email_body,
"non_html_message": non_html_message
}
run_background_task(
relative_path=url_for("tasks.send_email_task.send_email_via_sendgrid"),
payload=payload,
queue="email",
project=os.environ.get("GOOGLE_CLOUD_PROJECT"),
location="europe-west1")
def is_local():
setting = Settings.get_by_name("PROD_ENV")
if not setting:
return True
if setting.value:
return False
else:
return True
def send_email_via_sendgrid():
"""A background task that sends an email via SendGrid."""
data = json.loads(request.get_data(as_text=True))
recipient_email = data.get("recipient_email")
sender_email = data.get("sender_email")
email_subject = data.get("email_subject")
email_body = data.get("email_body")
non_html_message = data.get("non_html_message")
if is_local():
# localhost (not really sending the email)
logging.warning("***********************")
logging.warning(
"You are on localhost, so no e-mail will be sent. This is message:"
)
logging.warning("Recipient: " + recipient_email)
logging.warning("Sender: " + sender_email)
logging.warning("Subject: " + email_subject)
logging.warning("Body: " + non_html_message)
logging.warning("+++++++++++++++++++++++")
return "{sender_email} {email_subject}".format(
sender_email=sender_email, email_subject=email_subject)
else:
# production (sending the email via SendGrid)
if request.headers.get("X-AppEngine-QueueName"):
# If the request has this header (X-AppEngine-QueueName), then it really came from Google Cloud Tasks.
# Third-party requests that contain headers started with X are stripped of these headers once they hit GAE
# servers. That's why no one can fake these headers.
# SendGrid setup
sg_api_key = Settings.get_by_name("SendGrid-Mail")
sg = SendGridAPIClient(api_key=sg_api_key.value)
# Set up email message
email_message = Mail(from_email=sender_email,
to_emails=recipient_email,
subject=email_subject,
html_content=email_body)
try:
response = sg.send(email_message)
logging.info(response.status_code)
logging.info(response.body)
logging.info(response.headers)
except Exception as e:
logging.error(str(e))
return "true"
