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bazarr/libs/apprise/plugins/NotifyEmail.py

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# -*- coding: utf-8 -*-
#
# Email Notify Wrapper
#
# Copyright (C) 2017-2018 Chris Caron <lead2gold@gmail.com>
#
# This file is part of apprise.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
import re
from datetime import datetime
import smtplib
from socket import error as SocketError
from email.mime.text import MIMEText
from .NotifyBase import NotifyBase
from ..common import NotifyFormat
class WebBaseLogin(object):
"""
This class is just used in conjunction of the default emailers
to best formulate a login to it using the data detected
"""
# User Login must be Email Based
EMAIL = 'Email'
# User Login must UserID Based
USERID = 'UserID'
# To attempt to make this script stupid proof, if we detect an email address
# that is part of the this table, we can pre-use a lot more defaults if they
# aren't otherwise specified on the users input.
WEBBASE_LOOKUP_TABLE = (
# Google GMail
(
'Google Mail',
re.compile(r'^((?P<label>[^+]+)\+)?(?P<id>[^@]+)@(?P<domain>gmail\.com)$', re.I),
{
'port': 587,
'smtp_host': 'smtp.gmail.com',
'secure': True,
'login_type': (WebBaseLogin.EMAIL, )
},
),
# Pronto Mail
(
'Pronto Mail',
re.compile(r'^((?P<label>[^+]+)\+)?(?P<id>[^@]+)@(?P<domain>prontomail\.com)$', re.I),
{
'port': 465,
'smtp_host': 'secure.emailsrvr.com',
'secure': True,
'login_type': (WebBaseLogin.EMAIL, )
},
),
# Microsoft Hotmail
(
'Microsoft Hotmail',
re.compile(r'^((?P<label>[^+]+)\+)?(?P<id>[^@]+)@(?P<domain>(hotmail|live)\.com)$', re.I),
{
'port': 587,
'smtp_host': 'smtp.live.com',
'secure': True,
'login_type': (WebBaseLogin.EMAIL, )
},
),
# Yahoo Mail
(
'Yahoo Mail',
re.compile(r'^((?P<label>[^+]+)\+)?(?P<id>[^@]+)@(?P<domain>yahoo\.(ca|com))$', re.I),
{
'port': 465,
'smtp_host': 'smtp.mail.yahoo.com',
'secure': True,
'login_type': (WebBaseLogin.EMAIL, )
},
),
# Catch All
(
'Custom',
re.compile(r'^((?P<label>[^+]+)\+)?(?P<id>[^@]+)@(?P<domain>.+)$', re.I),
{
# Setting smtp_host to None is a way of
# auto-detecting it based on other parameters
# specified. There is no reason to ever modify
# this Catch All
'smtp_host': None,
},
),
)
class NotifyEmail(NotifyBase):
"""
A wrapper to Email Notifications
"""
# The default descriptive name associated with the Notification
service_name = 'E-Mail'
# The default simple (insecure) protocol
protocol = 'mailto'
# The default secure protocol
secure_protocol = 'mailtos'
# A URL that takes you to the setup/help of the specific protocol
setup_url = 'https://github.com/caronc/apprise/wiki/Notify_email'
# Default Non-Encryption Port
default_port = 25
# Default Secure Port
default_secure_port = 587
# Default SMTP Timeout (in seconds)
connect_timeout = 15
def __init__(self, **kwargs):
"""
Initialize Email Object
"""
super(NotifyEmail, self).__init__(**kwargs)
# Handle SMTP vs SMTPS (Secure vs UnSecure)
if not self.port:
if self.secure:
self.port = self.default_secure_port
else:
self.port = self.default_port
# Email SMTP Server Timeout
try:
self.timeout = int(kwargs.get('timeout', self.connect_timeout))
except (ValueError, TypeError):
self.timeout = self.connect_timeout
# Now we want to construct the To and From email
# addresses from the URL provided
self.from_name = kwargs.get('name', None)
self.from_addr = kwargs.get('from', None)
self.to_addr = kwargs.get('to', self.from_addr)
if not NotifyBase.is_email(self.from_addr):
# Parse Source domain based on from_addr
raise TypeError('Invalid ~From~ email format: %s' % self.from_addr)
if not NotifyBase.is_email(self.to_addr):
raise TypeError('Invalid ~To~ email format: %s' % self.to_addr)
# Now detect the SMTP Server
self.smtp_host = kwargs.get('smtp_host', '')
# Apply any defaults based on certain known configurations
self.NotifyEmailDefaults()
return
def NotifyEmailDefaults(self):
"""
A function that prefills defaults based on the email
it was provided.
"""
if self.smtp_host:
# SMTP Server was explicitly specified, therefore it is assumed
# the caller knows what he's doing and is intentionally
# over-riding any smarts to be applied
return
for i in range(len(WEBBASE_LOOKUP_TABLE)): # pragma: no branch
self.logger.debug('Scanning %s against %s' % (
self.to_addr, WEBBASE_LOOKUP_TABLE[i][0]
))
match = WEBBASE_LOOKUP_TABLE[i][1].match(self.from_addr)
if match:
self.logger.info(
'Applying %s Defaults' %
WEBBASE_LOOKUP_TABLE[i][0],
)
self.port = WEBBASE_LOOKUP_TABLE[i][2]\
.get('port', self.port)
self.secure = WEBBASE_LOOKUP_TABLE[i][2]\
.get('secure', self.secure)
self.smtp_host = WEBBASE_LOOKUP_TABLE[i][2]\
.get('smtp_host', self.smtp_host)
if self.smtp_host is None:
# Detect Server if possible
self.smtp_host = re.split(r'[\s@]+', self.from_addr)[-1]
# Adjust email login based on the defined
# usertype
login_type = WEBBASE_LOOKUP_TABLE[i][2]\
.get('login_type', [])
if NotifyBase.is_email(self.user) and \
WebBaseLogin.EMAIL not in login_type:
# Email specified but login type
# not supported; switch it to user id
self.user = match.group('id')
elif WebBaseLogin.USERID not in login_type:
# user specified but login type
# not supported; switch it to email
self.user = '%s@%s' % (self.user, self.host)
break
def notify(self, title, body, **kwargs):
"""
Perform Email Notification
"""
from_name = self.from_name
if not from_name:
from_name = self.app_desc
self.logger.debug('Email From: %s <%s>' % (
self.from_addr, from_name))
self.logger.debug('Email To: %s' % (self.to_addr))
self.logger.debug('Login ID: %s' % (self.user))
self.logger.debug('Delivery: %s:%d' % (self.smtp_host, self.port))
# Prepare Email Message
if self.notify_format == NotifyFormat.HTML:
email = MIMEText(body, 'html')
email['Content-Type'] = 'text/html'
else:
email = MIMEText(body, 'text')
email['Content-Type'] = 'text/plain'
email['Subject'] = title
email['From'] = '%s <%s>' % (from_name, self.from_addr)
email['To'] = self.to_addr
email['Date'] = datetime.utcnow()\
.strftime("%a, %d %b %Y %H:%M:%S +0000")
email['X-Application'] = self.app_id
# bind the socket variable to the current namespace
socket = None
try:
self.logger.debug('Connecting to remote SMTP server...')
socket = smtplib.SMTP(
self.smtp_host,
self.port,
None,
timeout=self.timeout,
)
if self.secure:
# Handle Secure Connections
self.logger.debug('Securing connection with TLS...')
socket.starttls()
if self.user and self.password:
# Apply Login credetials
self.logger.debug('Applying user credentials...')
socket.login(self.user, self.password)
# Send the email
socket.sendmail(self.from_addr, self.to_addr, email.as_string())
self.logger.info('Sent Email notification to "%s".' % (
self.to_addr,
))
except (SocketError, smtplib.SMTPException, RuntimeError) as e:
self.logger.warning(
'A Connection error occured sending Email '
'notification to %s.' % self.smtp_host)
self.logger.debug('Socket Exception: %s' % str(e))
# Return; we're done
return False
finally:
# Gracefully terminate the connection with the server
if socket is not None: # pragma: no branch
socket.quit()
return True
@staticmethod
def parse_url(url):
"""
Parses the URL and returns enough arguments that can allow
us to substantiate this object.
"""
results = NotifyBase.parse_url(url)
if not results:
# We're done early as we couldn't load the results
return results
# Apply our settings now
# Default Format is HTML
results['notify_format'] = NotifyFormat.HTML
to_addr = ''
from_addr = ''
smtp_host = ''
if 'format' in results['qsd'] and len(results['qsd']['format']):
# Extract email format (Text/Html)
format = NotifyBase.unquote(results['qsd']['format']).lower()
if len(format) > 0 and format[0] == 't':
results['notify_format'] = NotifyFormat.TEXT
# Attempt to detect 'from' email address
if 'from' in results['qsd'] and len(results['qsd']['from']):
from_addr = NotifyBase.unquote(results['qsd']['from'])
else:
# get 'To' email address
from_addr = '%s@%s' % (
re.split(
r'[\s@]+', NotifyBase.unquote(results['user']))[0],
results.get('host', '')
)
# Lets be clever and attempt to make the from
# address an email based on the to address
from_addr = '%s@%s' % (
re.split(r'[\s@]+', from_addr)[0],
re.split(r'[\s@]+', from_addr)[-1],
)
# Attempt to detect 'to' email address
if 'to' in results['qsd'] and len(results['qsd']['to']):
to_addr = NotifyBase.unquote(results['qsd']['to']).strip()
if not to_addr:
# Send to ourselves if not otherwise specified to do so
to_addr = from_addr
if 'name' in results['qsd'] and len(results['qsd']['name']):
# Extract from name to associate with from address
results['name'] = NotifyBase.unquote(results['qsd']['name'])
if 'timeout' in results['qsd'] and len(results['qsd']['timeout']):
# Extract the timeout to associate with smtp server
results['timeout'] = results['qsd']['timeout']
# Store SMTP Host if specified
if 'smtp' in results['qsd'] and len(results['qsd']['smtp']):
# Extract the smtp server
smtp_host = NotifyBase.unquote(results['qsd']['smtp'])
results['to'] = to_addr
results['from'] = from_addr
results['smtp_host'] = smtp_host
return results
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