mirror of
https://gitlab.ub.uni-bielefeld.de/sfb1288inf/nopaque.git
synced 2024-11-15 09:15:41 +00:00
91 lines
4.4 KiB
Python
91 lines
4.4 KiB
Python
from notify.notification import Notification
|
|
from notify.service import NotificationService
|
|
from sqlalchemy import asc
|
|
from tasks import Session
|
|
from tasks.decorators import background
|
|
from tasks.Models import NotificationEmailData
|
|
import os
|
|
|
|
|
|
@background
|
|
def notify(execute_flag):
|
|
# If True mails are sent normaly
|
|
# If False mails are not sent. Used to avoid sending mails for jobs that
|
|
# have been completed a long time ago. Use this if you implement notify
|
|
# into an already existing nopaque instance. Change it to True after the
|
|
# daemon has run one time with the flag set to False.
|
|
# Initialize notification service
|
|
notification_service = NotificationService(execute_flag)
|
|
notification_service.get_smtp_configs()
|
|
notification_service.set_server()
|
|
# create notifications (content, recipient etc.)
|
|
notifications = __create_mail_notifications(notification_service)
|
|
# only login and send mails if there are any notifications
|
|
if (len(notifications) > 0):
|
|
try:
|
|
notification_service.login()
|
|
# combine new and unsent notifications
|
|
notifications.update(notification_service.not_sent)
|
|
# send all notifications
|
|
__send_mail_notifications(notifications, notification_service)
|
|
# remove unsent notifications because they have been sent now
|
|
# but only if mail limit has not been exceeded
|
|
if (notification_service.mail_limit_exceeded is not True):
|
|
notification_service.not_sent = {}
|
|
notification_service.quit()
|
|
except Exception as e:
|
|
notification_service.not_sent.update(notifications)
|
|
notification_service.quit()
|
|
|
|
|
|
# Email notification functions
|
|
def __create_mail_notifications(notification_service):
|
|
mn_session = Session()
|
|
notification_email_data = mn_session.query(NotificationEmailData).order_by(asc(NotificationEmailData.creation_date)).all()
|
|
notifications = {}
|
|
for data in notification_email_data:
|
|
notification = Notification()
|
|
notification.set_addresses(notification_service.email_address,
|
|
data.job.user.email)
|
|
subject_template = '[nopaque] Status update for your Job/Corpora: {title}!'
|
|
subject_template_values_dict = {'title': data.job.title}
|
|
protocol = os.environ.get('NOPAQUE_PROTOCOL')
|
|
domain = os.environ.get('NOPAQUE_DOMAIN')
|
|
url = '{protocol}://{domain}/{jobs}/{id}'.format(
|
|
protocol=protocol, domain=domain, jobs='jobs', id=data.job.id)
|
|
body_template_values_dict = {'username': data.job.user.username,
|
|
'id': data.job.id,
|
|
'title': data.job.title,
|
|
'status': data.notify_status,
|
|
'time': data.creation_date,
|
|
'url': url}
|
|
txt_tmplt = 'notify/templates/notification_messages/notification.txt'
|
|
html_tmplt = 'notify/templates/notification_messages/notification.html'
|
|
notification.set_notification_content(subject_template,
|
|
subject_template_values_dict,
|
|
txt_tmplt,
|
|
html_tmplt,
|
|
body_template_values_dict)
|
|
notifications[data.job.id] = notification
|
|
# Using a dictionary for notifications avoids sending multiple mails
|
|
# if the status of a job changes in a few seconds. The user will not
|
|
# get swamped with mails for queued, running and complete if those
|
|
# happen in in a few seconds. Only the last update will be sent.
|
|
# This depends on the sleep time interval though.
|
|
mn_session.delete(data)
|
|
mn_session.commit()
|
|
Session.remove()
|
|
return notifications
|
|
|
|
|
|
def __send_mail_notifications(notifications, notification_service):
|
|
for key, notification in notifications.items():
|
|
try:
|
|
notification_service.send(notification)
|
|
notification_service.mail_limit_exceeded = False
|
|
except Exception as e:
|
|
# Adds notifications to unsent if mail server exceded limit for
|
|
# consecutive mail sending
|
|
notification_service.not_sent[key] = notification
|
|
notification_service.mail_limit_exceeded = True
|