jellyfin-accounts/jellyfin_accounts/email.py

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import datetime
import pytz
import requests
import smtplib
import ssl
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from pathlib import Path
from dateutil import parser as date_parser
from jinja2 import Environment, FileSystemLoader
from jellyfin_accounts import config
from jellyfin_accounts import email_log as log
class Email():
def __init__(self, address):
self.address = address
log.debug(f'{self.address}: Creating email')
self.content = {}
self.from_address = config['email']['address']
self.from_name = config['email']['from']
log.debug((
f'{self.address}: Sending from {self.from_address} ' +
f'({self.from_name})'))
def pretty_time(self, expiry):
current_time = datetime.datetime.now()
date = expiry.strftime(config['email']['date_format'])
if config.getboolean('email', 'use_24h'):
log.debug(f'{self.address}: Using 24h time')
time = expiry.strftime('%H:%M')
else:
log.debug(f'{self.address}: Using 12h time')
time = expiry.strftime('%-I:%M %p')
expiry_delta = (expiry - current_time).seconds
expires_in = {'hours': expiry_delta//3600,
'minutes': (expiry_delta//60) % 60}
if expires_in['hours'] == 0:
expires_in = f'{str(expires_in["minutes"])}m'
else:
expires_in = (f'{str(expires_in["hours"])}h ' +
f'{str(expires_in["minutes"])}m')
log.debug(f'{self.address}: Expires in {expires_in}')
return {'date': date, 'time': time, 'expires_in': expires_in}
def construct_invite(self, invite):
self.subject = config['invite_emails']['subject']
log.debug(f'{self.address}: Using subject {self.subject}')
log.debug(f'{self.address}: Constructing email content')
expiry = invite['expiry']
expiry.replace(tzinfo=None)
pretty = self.pretty_time(expiry)
email_message = config['email']['message']
invite_link = config['invite_emails']['url_base']
invite_link += '/' + invite['code']
for key in ['text', 'html']:
sp = Path(config['invite_emails']['email_' + key]) / '..'
sp = str(sp.resolve()) + '/'
template_loader = FileSystemLoader(searchpath=sp)
template_env = Environment(loader=template_loader)
fname = Path(config['invite_emails']['email_' + key]).name
template = template_env.get_template(fname)
c = template.render(expiry_date=pretty['date'],
expiry_time=pretty['time'],
expires_in=pretty['expires_in'],
invite_link=invite_link,
message=email_message)
self.content[key] = c
log.info(f'{self.address}: {key} constructed')
def construct_reset(self, reset):
self.subject = config['password_resets']['subject']
log.debug(f'{self.address}: Using subject {self.subject}')
log.debug(f'{self.address}: Constructing email content')
try:
expiry = date_parser.parse(reset['ExpirationDate'])
expiry = expiry.replace(tzinfo=None)
except:
log.error(f"{self.address}: Couldn't parse expiry time")
return False
current_time = datetime.datetime.now()
if expiry >= current_time:
log.debug(f'{self.address}: Invite valid')
pretty = self.pretty_time(expiry)
email_message = config['email']['message']
for key in ['text', 'html']:
sp = Path(config['password_resets']['email_' + key]) / '..'
sp = str(sp.resolve()) + '/'
template_loader = FileSystemLoader(searchpath=sp)
template_env = Environment(loader=template_loader)
fname = Path(config['password_resets']['email_' + key]).name
template = template_env.get_template(fname)
c = template.render(username=reset['UserName'],
expiry_date=pretty['date'],
expiry_time=pretty['time'],
expires_in=pretty['expires_in'],
pin=reset['Pin'],
message=email_message)
self.content[key] = c
log.info(f'{self.address}: {key} constructed')
return True
else:
err = ((f"{self.address}: " +
"Reset has reportedly already expired. " +
"Ensure timezones are correctly configured."))
log.error(err)
return False
class Mailgun(Email):
def __init__(self, address):
super().__init__(address)
self.api_url = config['mailgun']['api_url']
self.api_key = config['mailgun']['api_key']
self.from_mg = f'{self.from_name} <{self.from_address}>'
def send(self):
response = requests.post(self.api_url,
auth=("api", self.api_key),
data={"from": self.from_mg,
"to": [self.address],
"subject": self.subject,
"text": self.content['text'],
"html": self.content['html']})
if response.ok:
log.info(f'{self.address}: Sent via mailgun.')
return True
log.debug(f'{self.address}: Mailgun: {response.status_code}')
return response
class Smtp(Email):
def __init__(self, address):
super().__init__(address)
self.server = config['smtp']['server']
self.password = config['smtp']['password']
try:
self.port = int(config['smtp']['port'])
except ValueError:
self.port = 465
log.debug(f'{self.address}: Defaulting to port {self.port}')
def send(self):
message = MIMEMultipart("alternative")
message["Subject"] = self.subject
message["From"] = self.from_address
message["To"] = self.address
text = MIMEText(self.content['text'], 'plain')
html = MIMEText(self.content['html'], 'html')
message.attach(text)
message.attach(html)
try:
if config['smtp']['encryption'] == 'ssl_tls':
self.context = ssl.create_default_context()
with smtplib.SMTP_SSL(self.server,
self.port,
context=self.context) as server:
server.ehlo()
server.login(self.from_address, self.password)
server.sendmail(self.from_address,
self.address,
message.as_string())
log.info(f'{self.address}: Sent via smtp (ssl/tls)')
return True
elif config['smtp']['encryption'] == 'starttls':
with smtplib.SMTP(self.server,
self.port) as server:
server.ehlo()
server.starttls()
server.login(self.from_address, self.password)
server.sendmail(self.from_address,
self.address,
message.as_string())
log.info(f'{self.address}: Sent via smtp (starttls)')
return True
except Exception as e:
err = f'{self.address}: Failed to send via smtp: '
err += type(e).__name__
log.error(err)
try:
log.error(e.smtp_error)
except:
pass
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return False