# (c) Copyright 2014,2015 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from datetime import date
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from freezer_dr.common.utils import load_jinja_templates
from freezer_dr.notifiers.common.driver import NotifierBaseDriver
from oslo_config import cfg
from oslo_log import log
import smtplib
import time
CONF = cfg.CONF
LOG = log.getLogger(__name__)
[docs]class StandardEmail(NotifierBaseDriver):
def __init__(self, url, username, password, templates_dir, notify_from,
admin_list=None, **kwargs):
super(StandardEmail, self).__init__(url, username, password,
templates_dir, notify_from,
admin_list, **kwargs)
LOG.info('Initializing StandardEmail driver @ {0}'.format(url))
server = smtplib.SMTP(url, kwargs.get('port'))
server.ehlo()
if kwargs.get('tls'):
LOG.info('TLS enabled !')
server.starttls()
if username and password:
server.login(username, password)
LOG.info('Logged in !')
self.server = server
[docs] def notify_status(self, node, status):
_template = 'info.jinja'
if status == 'original':
_template = 'original.jinja'
if status == 'success':
_template = 'user_success.jinja'
elif status == 'error':
_template = 'error.jinja'
for tenant in node.get('tenants'):
for user in tenant.get('users'):
if 'email' in user:
subject = '[' + status + '] Evacuation Status'
template_vars = {
'name': user.get('name'),
'tenant': tenant.get('id'),
'instances': tenant.get('instances'),
'evacuation_time': date.fromtimestamp(time.time())
}
message = load_jinja_templates(self.templates_dir,
_template, template_vars)
self.send_email(self.notify_from, user.get('email'),
subject, html_msg=message)
# notify administrators
subject = 'Host Evacuation status'
_template = 'success.jinja'
template_vars = {
'host': node.get('host'),
'tenants': node.get('tenants'),
'instances': node.get('instances'),
'hypervisor': node.get('details'),
'evacuation_time': date.fromtimestamp(time.time())
}
message = load_jinja_templates(self.templates_dir, _template,
template_vars)
self.send_email(self.notify_from, self.notify_from, subject,
message, self.admin_list or None)
[docs] def send_email(self, mail_from, mail_to, subject, html_msg, cc_list=None,
plain_msg=None):
LOG.info('Sending email ....')
message = MIMEMultipart()
message['Subject'] = subject
message['to'] = mail_to
if cc_list:
message['cc'] = ', '.join(cc_list)
message['from'] = mail_from or self.notify_from
msg = MIMEText(html_msg, 'html')
message.attach(msg)
if plain_msg:
plain_msg = MIMEText(plain_msg, 'plain')
message.attach(plain_msg)
try:
self.server.sendmail(mail_from, mail_to,
message.as_string())
LOG.info('Email sent successfully !')
except Exception as e:
LOG.error(e)
[docs] def notify(self, message):
try:
self.send_email(
mail_from=self.notify_from,
mail_to=self.notify_from,
subject="[Freezer-DR] Problem Occurred",
html_msg=message,
cc_list=self.admin_list or []
)
return True
except Exception:
return False
def __exit__(self, exc_type, exc_val, exc_tb):
self.server.quit()
