v1

2025-10-22 16:48:55 +02:00
commit 4cefd4e3ab
53 changed files with 5837 additions and 0 deletions
--- a/server/services/newsletter.py
+++ b/server/services/newsletter.py
@@ -0,0 +1,96 @@
+"""Business logic for newsletter subscriptions."""
+from __future__ import annotations
+
+from datetime import datetime, timezone
+
+from ..database import save_subscriber, delete_subscriber, update_subscriber
+from ..utils import is_valid_email
+
+
+def validate_email(email: str) -> bool:
+    """Return True when the provided email passes a basic sanity check."""
+    return is_valid_email(email)
+
+
+def subscribe(email: str) -> bool:
+    """Persist the subscription and return False when it already exists."""
+    created_at = datetime.now(timezone.utc).isoformat()
+    return save_subscriber(email, created_at=created_at)
+
+
+def unsubscribe(email: str) -> bool:
+    """Remove the subscription and return True if it existed."""
+    return delete_subscriber(email)
+
+
+def update_email(old_email: str, new_email: str) -> bool:
+    """Update the email for a subscription. Return True if updated."""
+    return update_subscriber(old_email, new_email)
+
+
+def send_newsletter_to_subscribers(subject: str, content: str, emails: list[str], sender_name: str | None = None) -> int:
+    """Send newsletter to list of email addresses. Returns count of successful sends."""
+    import logging
+    from .. import settings
+
+    if not settings.SMTP_SETTINGS["host"]:
+        logging.error("SMTP not configured, cannot send newsletter")
+        return 0
+
+    try:
+        import smtplib
+        from email.mime.text import MIMEText
+        from email.mime.multipart import MIMEMultipart
+
+        # Create message
+        msg = MIMEMultipart('alternative')
+        msg['Subject'] = subject
+        msg['From'] = settings.SMTP_SETTINGS["sender"] or "noreply@example.com"
+
+        # Format content
+        formatted_content = content.replace('\n', '<br>')
+        html_content = f"""
+        <html>
+        <body>
+            {formatted_content}
+        </body>
+        </html>
+        """
+
+        # Add HTML content
+        html_part = MIMEText(html_content, 'html')
+        msg.attach(html_part)
+
+        # Send to each recipient individually for better deliverability
+        success_count = 0
+        with smtplib.SMTP(settings.SMTP_SETTINGS["host"], settings.SMTP_SETTINGS["port"]) as server:
+            if settings.SMTP_SETTINGS["use_tls"]:
+                server.starttls()
+
+            if settings.SMTP_SETTINGS["username"] and settings.SMTP_SETTINGS["password"]:
+                server.login(
+                    settings.SMTP_SETTINGS["username"], settings.SMTP_SETTINGS["password"])
+
+            for email in emails:
+                try:
+                    # Create a fresh copy for each recipient
+                    recipient_msg = MIMEMultipart('alternative')
+                    recipient_msg['Subject'] = subject
+                    recipient_msg['From'] = msg['From']
+                    recipient_msg['To'] = email
+
+                    # Add HTML content
+                    recipient_msg.attach(MIMEText(html_content, 'html'))
+
+                    server.sendmail(msg['From'], email,
+                                    recipient_msg.as_string())
+                    success_count += 1
+                except Exception as exc:
+                    logging.exception(
+                        "Failed to send newsletter to %s: %s", email, exc)
+
+        return success_count
+
+    except Exception as exc:
+        logging.exception("Failed to send newsletter: %s", exc)
+        return 0