app-MAIL-temp/app/email_utils.py

120 lines
3.2 KiB
Python

import os
from email.message import EmailMessage
from email.utils import make_msgid, formatdate
from smtplib import SMTP
from jinja2 import Environment, FileSystemLoader
from app.config import SUPPORT_EMAIL, ROOT_DIR, POSTFIX_SERVER
from app.log import LOG
def _render(template_name, **kwargs) -> str:
templates_dir = os.path.join(ROOT_DIR, "templates", "emails")
env = Environment(loader=FileSystemLoader(templates_dir))
template = env.get_template(template_name)
return template.render(**kwargs)
def send_welcome_email(email, name):
send_by_postfix(
email,
f"{name}, welcome to SimpleLogin!",
_render("welcome.txt", name=name),
_render("welcome.html", name=name),
)
def send_activation_email(email, name, activation_link):
send_by_postfix(
email,
f"{name}, just one more step to join SimpleLogin",
_render(
"activation.txt", name=name, activation_link=activation_link, email=email
),
_render(
"activation.html", name=name, activation_link=activation_link, email=email
),
)
def send_reset_password_email(email, name, reset_password_link):
send_by_postfix(
email,
f"{name}, reset your password on SimpleLogin",
_render(
"reset-password.txt", name=name, reset_password_link=reset_password_link
),
_render(
"reset-password.html", name=name, reset_password_link=reset_password_link
),
)
def send_change_email(new_email, current_email, name, link):
send_by_postfix(
new_email,
f"{name}, confirm email update on SimpleLogin",
_render(
"change-email.txt",
name=name,
link=link,
new_email=new_email,
current_email=current_email,
),
_render(
"change-email.html",
name=name,
link=link,
new_email=new_email,
current_email=current_email,
),
)
def send_new_app_email(email, name):
send_by_postfix(
email,
f"{name}, any questions/feedbacks for SimpleLogin?",
_render("new-app.txt", name=name),
_render("new-app.html", name=name),
)
def send_test_email_alias(email, name):
send_by_postfix(
email,
f"{name}, this email is sent to {email}",
_render("test-email.txt", name=name, alias=email),
_render("test-email.html", name=name, alias=email),
)
def send_by_postfix(to_email, subject, plaintext, html):
# host IP, setup via Docker network
smtp = SMTP(POSTFIX_SERVER, 25)
msg = EmailMessage()
msg["Subject"] = subject
msg["From"] = f"Son from SimpleLogin <{SUPPORT_EMAIL}>"
msg["To"] = to_email
msg.set_content(plaintext)
if html is not None:
msg.add_alternative(html, subtype="html")
msg_id_header = make_msgid()
LOG.d("message-id %s", msg_id_header)
msg["Message-ID"] = msg_id_header
date_header = formatdate()
LOG.d("Date header: %s", date_header)
msg["Date"] = date_header
smtp.send_message(msg, from_addr=SUPPORT_EMAIL, to_addrs=[to_email])
def notify_admin(subject, html_content=""):
send_by_postfix(SUPPORT_EMAIL, subject, html_content, html_content)