9a0871381a
- Added a background scheduler to manage newsletter dispatch based on user-defined settings. - Enhanced the SMTP settings to include scheduling options such as frequency, time, and specific weekdays. - Updated the dashboard UI to allow users to configure scheduling preferences for automated newsletter sending. - Modified the newsletter generation logic to accommodate new scheduling parameters and ensure proper content delivery.
129 lines
4.9 KiB
Python
129 lines
4.9 KiB
Python
import smtplib
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from datetime import datetime
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from email.mime.multipart import MIMEMultipart
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from email.mime.text import MIMEText
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from typing import Sequence
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from sqlalchemy.orm import Session
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from app.models.system import SendLog
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from app.services.config_store import get_config
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def get_smtp_settings(db: Session) -> dict[str, str]:
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return {
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"enabled": get_config(db, "smtp.enabled", "false"),
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"host": get_config(db, "smtp.host", ""),
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"port": get_config(db, "smtp.port", "587"),
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"username": get_config(db, "smtp.username", ""),
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"password": get_config(db, "smtp.password", ""),
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"from_email": get_config(db, "smtp.from_email", ""),
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"use_tls": get_config(db, "smtp.use_tls", "true"),
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"recipients": get_config(db, "smtp.recipients", ""),
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# Zeitplan
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"schedule_enabled": get_config(db, "smtp.schedule_enabled", "false"),
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"schedule_frequency": get_config(db, "smtp.schedule_frequency", "monthly"),
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"schedule_time": get_config(db, "smtp.schedule_time", "08:00"),
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"schedule_weekdays": get_config(db, "smtp.schedule_weekdays", "0"),
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"schedule_dom": get_config(db, "smtp.schedule_dom", "1"),
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"last_scheduled_date": get_config(db, "smtp.last_scheduled_date", ""),
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# Generierungs-Vorgaben für den geplanten Versand
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"gen_period": get_config(db, "smtp.gen_period", "last_month"),
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"gen_days": get_config(db, "smtp.gen_days", "30"),
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"gen_article_type": get_config(db, "smtp.gen_article_type", "new"),
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"gen_category": get_config(db, "smtp.gen_category", ""),
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}
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def schedule_is_due(settings: dict[str, str], now: datetime) -> bool:
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"""Prüft, ob laut Zeitplan jetzt ein Versand fällig ist (mit Tages-Dedupe)."""
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if settings["enabled"].lower() != "true":
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return False
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if (settings.get("schedule_enabled") or "false").lower() != "true":
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return False
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freq = (settings.get("schedule_frequency") or "off").lower()
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if freq == "off":
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return False
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schedule_time = settings.get("schedule_time") or "08:00"
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if now.strftime("%H:%M") < schedule_time:
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return False
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today = now.strftime("%Y-%m-%d")
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if settings.get("last_scheduled_date") == today:
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return False
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if freq == "daily":
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return True
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if freq == "weekly":
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weekdays = {d.strip() for d in (settings.get("schedule_weekdays") or "").split(",") if d.strip() != ""}
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return str(now.weekday()) in weekdays
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if freq == "monthly":
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try:
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dom = int(settings.get("schedule_dom") or "1")
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except ValueError:
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dom = 1
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return now.day == max(1, min(dom, 28))
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return False
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def send_newsletter(
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db: Session,
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subject: str,
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html_content: str,
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text_content: str,
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recipients: Sequence[str],
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scheduled: bool = False,
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) -> tuple[str, str]:
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settings = get_smtp_settings(db)
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if settings["enabled"].lower() != "true":
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detail = "SMTP ist deaktiviert. Bitte in der SMTP-Konfiguration aktivieren."
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_log(db, subject, recipients, "skipped", detail, scheduled)
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return "skipped", detail
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if not settings["host"] or not settings["from_email"] or not recipients:
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detail = "SMTP unvollständig konfiguriert (Host, Absender oder Empfänger fehlen)."
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_log(db, subject, recipients, "failed", detail, scheduled)
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return "failed", detail
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msg = MIMEMultipart("alternative")
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msg.attach(MIMEText(text_content, "plain", "utf-8"))
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msg.attach(MIMEText(html_content, "html", "utf-8"))
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msg["Subject"] = subject
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msg["From"] = settings["from_email"]
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msg["To"] = ", ".join(recipients)
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try:
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port = int(settings["port"])
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with smtplib.SMTP(settings["host"], port, timeout=20) as server:
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if settings["use_tls"].lower() == "true":
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server.starttls()
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if settings["username"]:
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server.login(settings["username"], settings["password"])
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server.sendmail(settings["from_email"], list(recipients), msg.as_string())
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detail = f"Versand erfolgreich an {len(recipients)} Empfänger."
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_log(db, subject, recipients, "sent", detail, scheduled)
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return "sent", detail
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except Exception as exc:
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detail = f"Versandfehler: {exc}"
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_log(db, subject, recipients, "failed", detail, scheduled)
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return "failed", detail
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def mark_scheduled_sent(db: Session, now: datetime) -> None:
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from app.services.config_store import set_config
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set_config(db, "smtp.last_scheduled_date", now.strftime("%Y-%m-%d"))
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def _log(db: Session, subject: str, recipients: Sequence[str], status: str, detail: str, scheduled: bool) -> None:
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db.add(
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SendLog(
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subject=subject,
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recipients=", ".join(recipients) if recipients else "-",
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status=status,
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detail=detail,
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scheduled=scheduled,
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)
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)
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db.commit()
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