send mail.py

send_mail.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import sys
import argparse
import logging
import json

import requests
from flask import (
    url_for, render_template
)

from hack_in_poa.app import create_app
from hack_in_poa.models.user import User


def main():
    logging.getLogger("requests").setLevel(logging.WARNING)
    args = parse_arguments()
    app = create_app(args.conf, debug=False, initialize_assets=False)

    template = "subscription.html"
    if args.resend:
        template = "subscription_again.html"

    if args.confirmed:
        template = "subscription_confirmed.html"

    if args.reproved:
        template = "subscription_reproved.html"

    with app.test_request_context('/register.html'):
        if args.confirmed:
            all_users = list(User.objects.filter(will_go=True, received_confirmation_email=None))
            for user in User.objects.filter(will_go=True, received_confirmation_email=False):
                all_users.append(user)

        else:
            if args.reproved:
                all_users = list(User.objects.filter(will_go=False))
                for user in User.objects.filter(will_go=None):
                    all_users.append(user)
            else:
                user_emails = app.config['AUTHORIZED_PARTICIPANTS']
                all_users = User.objects.filter(email__in=user_emails)

        for user in all_users:
            send_email_to(app, user, template)

            if args.confirmed:
                user.received_confirmation_email = True
                user.save()


def parse_arguments(args=None):
    if args is None:
        args = sys.argv[1:]

    parser = argparse.ArgumentParser()
    parser.add_argument('--conf', '-c', default='hack_in_poa/config/local.conf', help="Path to configuration file.")
    parser.add_argument(
        '--resend', '-r', action="store_true", default=False, help="Send to users that already received the first e-mail."
    )
    parser.add_argument(
        '--confirmed', '-f', action="store_true", default=False, help="Send to users that confirmed participation."
    )
    parser.add_argument(
        '--reproved', '-v', action="store_true", default=False, help="Send to users that didn't confirm participation."
    )

    options = parser.parse_args(args)
    return options


def send_email_to(app, user, template):
    url = "http://hackinpoa.globo.com%s" % url_for('index.register')
    message_text = render_template(template, user=user, referral_url=url)
    message = {
        'key': app.config['MAIL_API_KEY'],
        'async': False,
        'message': {
            'auto_html': False,
            'auto_text': False,
            'bcc_address': '[email protected]',
            'from_email': '[email protected]',
            'from_name': 'Hack In PoA 2015',
            'google_analytics_campaign': '[email protected]',
            'google_analytics_domains': ['hackinpoa.globo.com'],
            'headers': {'Reply-To': '[email protected]'},
            'html': message_text,
            'text': '',
            'important': True,
            'metadata': {'website': 'hackinpoa.globo.com'},
            'return_path_domain': 'hackinpoa.globo.com',
            'subject': u'Hack In PoA 2015',
            'tags': ['hackinpoa'],
            'to': [{'email': user.email,
                    'name': user.name,
                    'type': 'to'}],
            'track_clicks': True,
            'track_opens': True,
            'tracking_domain': 'hackinpoa.globo.com',
        }
    }

    logging.info('Sending confirmation message to %s...' % user.email)
    url = 'https://mandrillapp.com/api/1.0/messages/send.json'
    r = requests.post(url, data=json.dumps(message))

    if r.status_code != 200:
        # Mandrill errors are thrown as exceptions
        logging.error('A mandrill error occurred: %s' % r.text)
        return False

    result = json.loads(r.text)

    if result[0]['status'] in ['rejected', 'invalid']:
        logging.info('Sending message to %s failed with: %s' % (
            user.email, result[0]
        ))
        return False

    logging.info('Message sent successfully to %s' % user.email)
    return True


if __name__ == "__main__":
    main()