zwitschi
56840ac313
- Implemented `send_subscription_confirmation` function to send a confirmation email upon subscription. - Added a default HTML template for the confirmation email in settings. - Updated the newsletter management page to handle subscription and unsubscription actions. - Created new templates for embedding contact and newsletter forms. - Added styles for the new templates and unified CSS styles across the application. - Updated tests to reflect changes in the newsletter management API endpoints.
152 lines
5.3 KiB
Python
152 lines
5.3 KiB
Python
"""Business logic for newsletter subscriptions."""
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from __future__ import annotations
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from datetime import datetime, timezone
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from ..database import save_subscriber, delete_subscriber, update_subscriber
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from ..utils import is_valid_email
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def validate_email(email: str) -> bool:
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"""Return True when the provided email passes a basic sanity check."""
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return is_valid_email(email)
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def subscribe(email: str) -> bool:
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"""Persist the subscription and return False when it already exists."""
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created_at = datetime.now(timezone.utc).isoformat()
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return save_subscriber(email, created_at=created_at)
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def unsubscribe(email: str) -> bool:
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"""Remove the subscription and return True if it existed."""
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return delete_subscriber(email)
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def update_email(old_email: str, new_email: str) -> bool:
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"""Update the email for a subscription. Return True if updated."""
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return update_subscriber(old_email, new_email)
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def send_subscription_confirmation(email: str) -> bool:
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"""Send a confirmation email to the subscriber."""
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import logging
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from .. import settings
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if not settings.SMTP_SETTINGS["host"]:
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logging.info("SMTP not configured; skipping confirmation email")
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return False
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# Get template from settings or default
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template = getattr(settings, 'NEWSLETTER_CONFIRMATION_TEMPLATE', """
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<html>
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<body>
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<h2>Welcome to our Newsletter!</h2>
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<p>Thank you for subscribing to our newsletter. You're now part of our community and will receive updates on our latest news and offers.</p>
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<p>If you wish to unsubscribe at any time, you can do so by visiting our <a href="https://your-domain.com/newsletter/manage">subscription management page</a>.</p>
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<p>Best regards,<br>The Team</p>
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</body>
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</html>
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""").strip()
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try:
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import smtplib
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from email.mime.text import MIMEText
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from email.mime.multipart import MIMEMultipart
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sender = settings.SMTP_SETTINGS["sender"] or "noreply@example.com"
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# Create message
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msg = MIMEMultipart('alternative')
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msg['Subject'] = "Newsletter Subscription Confirmation"
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msg['From'] = sender
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msg['To'] = email
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# Add HTML content
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html_part = MIMEText(template, 'html')
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msg.attach(html_part)
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# Send email
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with smtplib.SMTP(settings.SMTP_SETTINGS["host"], settings.SMTP_SETTINGS["port"], timeout=15) as server:
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if settings.SMTP_SETTINGS["use_tls"]:
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server.starttls()
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if settings.SMTP_SETTINGS["username"]:
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server.login(
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settings.SMTP_SETTINGS["username"], settings.SMTP_SETTINGS["password"] or "")
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server.send_message(msg)
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logging.info("Confirmation email sent to %s", email)
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return True
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except Exception as exc:
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logging.exception("Failed to send confirmation email to %s: %s", email, exc)
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return False
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def send_newsletter_to_subscribers(subject: str, content: str, emails: list[str], sender_name: str | None = None) -> int:
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"""Send newsletter to list of email addresses. Returns count of successful sends."""
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import logging
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from .. import settings
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if not settings.SMTP_SETTINGS["host"]:
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logging.error("SMTP not configured, cannot send newsletter")
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return 0
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try:
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import smtplib
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from email.mime.text import MIMEText
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from email.mime.multipart import MIMEMultipart
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# Create message
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msg = MIMEMultipart('alternative')
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msg['Subject'] = subject
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msg['From'] = settings.SMTP_SETTINGS["sender"] or "noreply@example.com"
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# Format content
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formatted_content = content.replace('\n', '<br>')
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html_content = f"""
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<html>
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<body>
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{formatted_content}
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</body>
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</html>
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"""
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# Add HTML content
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html_part = MIMEText(html_content, 'html')
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msg.attach(html_part)
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# Send to each recipient individually for better deliverability
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success_count = 0
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with smtplib.SMTP(settings.SMTP_SETTINGS["host"], settings.SMTP_SETTINGS["port"]) as server:
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if settings.SMTP_SETTINGS["use_tls"]:
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server.starttls()
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if settings.SMTP_SETTINGS["username"] and settings.SMTP_SETTINGS["password"]:
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server.login(
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settings.SMTP_SETTINGS["username"], settings.SMTP_SETTINGS["password"])
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for email in emails:
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try:
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# Create a fresh copy for each recipient
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recipient_msg = MIMEMultipart('alternative')
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recipient_msg['Subject'] = subject
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recipient_msg['From'] = msg['From']
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recipient_msg['To'] = email
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# Add HTML content
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recipient_msg.attach(MIMEText(html_content, 'html'))
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server.sendmail(msg['From'], email,
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recipient_msg.as_string())
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success_count += 1
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except Exception as exc:
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logging.exception(
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"Failed to send newsletter to %s: %s", email, exc)
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return success_count
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except Exception as exc:
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logging.exception("Failed to send newsletter: %s", exc)
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return 0
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