Files
TK-Wiki-Newsletter/app/services/smtp_sender.py
smueller f2cfe8de3e Add 'from_name' field to SMTP settings and update email sending logic
- Introduced a new 'from_name' field in the SMTP settings to allow users to specify a sender name.
- Updated the dashboard template to include an input for the sender name.
- Modified the email sending logic to format the 'From' header with the sender name if provided, enhancing email presentation.
2026-07-07 16:00:22 +02:00

137 lines
5.2 KiB
Python

import smtplib
from datetime import datetime
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.utils import formataddr
from typing import Sequence
from sqlalchemy.orm import Session
from app.models.system import SendLog
from app.services.config_store import get_config
def get_smtp_settings(db: Session) -> dict[str, str]:
return {
"enabled": get_config(db, "smtp.enabled", "false"),
"host": get_config(db, "smtp.host", ""),
"port": get_config(db, "smtp.port", "587"),
"username": get_config(db, "smtp.username", ""),
"password": get_config(db, "smtp.password", ""),
"from_email": get_config(db, "smtp.from_email", ""),
"from_name": get_config(db, "smtp.from_name", ""),
"reply_to": get_config(db, "smtp.reply_to", ""),
"use_tls": get_config(db, "smtp.use_tls", "true"),
"recipients": get_config(db, "smtp.recipients", ""),
# Zeitplan
"schedule_enabled": get_config(db, "smtp.schedule_enabled", "false"),
"schedule_frequency": get_config(db, "smtp.schedule_frequency", "monthly"),
"schedule_time": get_config(db, "smtp.schedule_time", "08:00"),
"schedule_weekdays": get_config(db, "smtp.schedule_weekdays", "0"),
"schedule_dom": get_config(db, "smtp.schedule_dom", "1"),
"last_scheduled_date": get_config(db, "smtp.last_scheduled_date", ""),
# Generierungs-Vorgaben für den geplanten Versand
"gen_period": get_config(db, "smtp.gen_period", "last_month"),
"gen_days": get_config(db, "smtp.gen_days", "30"),
"gen_article_type": get_config(db, "smtp.gen_article_type", "new"),
"gen_category": get_config(db, "smtp.gen_category", ""),
}
def schedule_is_due(settings: dict[str, str], now: datetime) -> bool:
"""Prüft, ob laut Zeitplan jetzt ein Versand fällig ist (mit Tages-Dedupe)."""
if settings["enabled"].lower() != "true":
return False
if (settings.get("schedule_enabled") or "false").lower() != "true":
return False
freq = (settings.get("schedule_frequency") or "off").lower()
if freq == "off":
return False
schedule_time = settings.get("schedule_time") or "08:00"
if now.strftime("%H:%M") < schedule_time:
return False
today = now.strftime("%Y-%m-%d")
if settings.get("last_scheduled_date") == today:
return False
if freq == "daily":
return True
if freq == "weekly":
weekdays = {d.strip() for d in (settings.get("schedule_weekdays") or "").split(",") if d.strip() != ""}
return str(now.weekday()) in weekdays
if freq == "monthly":
try:
dom = int(settings.get("schedule_dom") or "1")
except ValueError:
dom = 1
return now.day == max(1, min(dom, 28))
return False
def send_newsletter(
db: Session,
subject: str,
html_content: str,
text_content: str,
recipients: Sequence[str],
scheduled: bool = False,
) -> tuple[str, str]:
settings = get_smtp_settings(db)
if settings["enabled"].lower() != "true":
detail = "SMTP ist deaktiviert. Bitte in der SMTP-Konfiguration aktivieren."
_log(db, subject, recipients, "skipped", detail, scheduled)
return "skipped", detail
if not settings["host"] or not settings["from_email"] or not recipients:
detail = "SMTP unvollständig konfiguriert (Host, Absender oder Empfänger fehlen)."
_log(db, subject, recipients, "failed", detail, scheduled)
return "failed", detail
msg = MIMEMultipart("alternative")
msg.attach(MIMEText(text_content, "plain", "utf-8"))
msg.attach(MIMEText(html_content, "html", "utf-8"))
msg["Subject"] = subject
if settings.get("from_name"):
msg["From"] = formataddr((settings["from_name"], settings["from_email"]))
else:
msg["From"] = settings["from_email"]
msg["To"] = ", ".join(recipients)
if settings.get("reply_to"):
msg["Reply-To"] = settings["reply_to"]
try:
port = int(settings["port"])
with smtplib.SMTP(settings["host"], port, timeout=20) as server:
if settings["use_tls"].lower() == "true":
server.starttls()
if settings["username"]:
server.login(settings["username"], settings["password"])
server.sendmail(settings["from_email"], list(recipients), msg.as_string())
detail = f"Versand erfolgreich an {len(recipients)} Empfänger."
_log(db, subject, recipients, "sent", detail, scheduled)
return "sent", detail
except Exception as exc:
detail = f"Versandfehler: {exc}"
_log(db, subject, recipients, "failed", detail, scheduled)
return "failed", detail
def mark_scheduled_sent(db: Session, now: datetime) -> None:
from app.services.config_store import set_config
set_config(db, "smtp.last_scheduled_date", now.strftime("%Y-%m-%d"))
def _log(db: Session, subject: str, recipients: Sequence[str], status: str, detail: str, scheduled: bool) -> None:
db.add(
SendLog(
subject=subject,
recipients=", ".join(recipients) if recipients else "-",
status=status,
detail=detail,
scheduled=scheduled,
)
)
db.commit()