| """ |
| Email sending abstraction for magic link authentication. |
| Supports multiple backends: Console (dev), Resend API (production). |
| """ |
| import logging |
| from django.conf import settings |
| from django.core.mail import EmailMultiAlternatives, send_mail |
| from django.urls import reverse |
|
|
| logger = logging.getLogger(__name__) |
|
|
|
|
| def send_magic_link_email(request, magic_token) -> bool: |
| """ |
| Send magic link email using configured backend. |
| |
| Args: |
| request: HttpRequest object (for building absolute URL) |
| magic_token: MagicToken instance |
| |
| Returns: |
| bool: True if email sent successfully |
| """ |
| verify_path = reverse("auth:verify", kwargs={"token": magic_token.token}) |
| verify_url = request.build_absolute_uri(verify_path) |
|
|
| |
| if settings.DEBUG: |
| print("\n" + "=" * 60) |
| print("MAGIC LINK (click or copy):") |
| print(verify_url) |
| print("=" * 60 + "\n") |
|
|
| subject = "Your PyRunner Login Link" |
|
|
| text_message = f"""Hi there! |
| |
| Click the link below to sign in to PyRunner: |
| |
| ======================================== |
| {verify_url} |
| ======================================== |
| |
| This link will expire in 15 minutes and can only be used once. |
| |
| If you didn't request this link, you can safely ignore this email. |
| |
| --- |
| PyRunner - Python Script Automation |
| """ |
|
|
| html_message = f"""<!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <style> |
| body {{ font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; line-height: 1.6; color: #333; }} |
| .container {{ max-width: 600px; margin: 0 auto; padding: 40px 20px; }} |
| .button {{ display: inline-block; background: #2563eb; color: #ffffff !important; padding: 14px 28px; text-decoration: none; border-radius: 6px; font-weight: 600; }} |
| .footer {{ margin-top: 40px; padding-top: 20px; border-top: 1px solid #e5e7eb; color: #6b7280; font-size: 14px; }} |
| </style> |
| </head> |
| <body> |
| <div class="container"> |
| <h2>Sign in to PyRunner</h2> |
| <p>Click the button below to sign in:</p> |
| <p style="margin: 30px 0;"> |
| <a href="{verify_url}" class="button">Sign In to PyRunner</a> |
| </p> |
| <p style="color: #6b7280; font-size: 14px;"> |
| This link expires in 15 minutes and can only be used once. |
| </p> |
| <p style="color: #6b7280; font-size: 14px;"> |
| Or copy and paste this URL into your browser:<br> |
| <code style="background: #f3f4f6; padding: 2px 6px; border-radius: 4px;">{verify_url}</code> |
| </p> |
| <div class="footer"> |
| <p>If you didn't request this link, you can safely ignore this email.</p> |
| <p><strong>PyRunner</strong> - Python Script Automation</p> |
| </div> |
| </div> |
| </body> |
| </html>""" |
|
|
| return _send_email(magic_token.email, subject, text_message, html_message) |
|
|
|
|
| def send_password_reset_email(request, user, reset_token) -> bool: |
| """ |
| Send password reset email. |
| |
| Args: |
| request: HttpRequest object (for building absolute URL) |
| user: User instance |
| reset_token: PasswordResetToken instance |
| |
| Returns: |
| bool: True if email sent successfully |
| """ |
| reset_path = reverse("auth:reset_password", kwargs={"token": reset_token.token}) |
| reset_url = request.build_absolute_uri(reset_path) |
|
|
| |
| if settings.DEBUG: |
| print("\n" + "=" * 60) |
| print("PASSWORD RESET LINK (click or copy):") |
| print(reset_url) |
| print("=" * 60 + "\n") |
|
|
| subject = "Reset Your PyRunner Password" |
|
|
| text_message = f"""Hi there! |
| |
| You requested a password reset for your PyRunner account. |
| |
| Click the link below to reset your password: |
| |
| ======================================== |
| {reset_url} |
| ======================================== |
| |
| This link will expire in 24 hours and can only be used once. |
| |
| If you didn't request this, you can safely ignore this email. |
| |
| --- |
| PyRunner - Python Script Automation |
| """ |
|
|
| html_message = f"""<!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <style> |
| body {{ font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; line-height: 1.6; color: #333; }} |
| .container {{ max-width: 600px; margin: 0 auto; padding: 40px 20px; }} |
| .button {{ display: inline-block; background: #2563eb; color: #ffffff !important; padding: 14px 28px; text-decoration: none; border-radius: 6px; font-weight: 600; }} |
| .footer {{ margin-top: 40px; padding-top: 20px; border-top: 1px solid #e5e7eb; color: #6b7280; font-size: 14px; }} |
| </style> |
| </head> |
| <body> |
| <div class="container"> |
| <h2>Reset Your Password</h2> |
| <p>You requested a password reset for your PyRunner account ({user.email}).</p> |
| <p style="margin: 30px 0;"> |
| <a href="{reset_url}" class="button">Reset Password</a> |
| </p> |
| <p style="color: #6b7280; font-size: 14px;"> |
| This link expires in 24 hours and can only be used once. |
| </p> |
| <p style="color: #6b7280; font-size: 14px;"> |
| Or copy and paste this URL into your browser:<br> |
| <code style="background: #f3f4f6; padding: 2px 6px; border-radius: 4px;">{reset_url}</code> |
| </p> |
| <div class="footer"> |
| <p>If you didn't request this, you can safely ignore this email.</p> |
| <p><strong>PyRunner</strong> - Python Script Automation</p> |
| </div> |
| </div> |
| </body> |
| </html>""" |
|
|
| return _send_email(user.email, subject, text_message, html_message) |
|
|
|
|
| def _get_db_backend_and_from_email(): |
| """ |
| Returns (backend, from_email) if GlobalSettings has a non-DISABLED email |
| backend configured, else (None, None). Local imports avoid a circular |
| import with core.services.notification_service. |
| """ |
| from core.models import GlobalSettings |
| from core.services.notification_service import NotificationService |
|
|
| gs = GlobalSettings.get_settings() |
| if gs.email_backend == GlobalSettings.EmailBackend.DISABLED: |
| return None, None |
|
|
| backend = NotificationService._get_email_backend(gs) |
| if backend is None: |
| return None, None |
|
|
| from_email = ( |
| gs.smtp_from_email |
| if gs.email_backend == GlobalSettings.EmailBackend.SMTP |
| else gs.resend_from_email |
| ) |
| return backend, from_email |
|
|
|
|
| def _send_email(to_email: str, subject: str, text_content: str, html_content: str) -> bool: |
| """ |
| Unified sender for auth emails. |
| Resolution order: DB-configured backend → env Resend API → Django send_mail(). |
| A DB backend failure is NOT retried via env — it is surfaced as False. |
| """ |
| backend, from_email = _get_db_backend_and_from_email() |
| if backend is not None: |
| if not from_email: |
| logger.error( |
| f"DB email backend configured but from_email is empty; cannot send to {to_email}" |
| ) |
| return False |
| try: |
| msg = EmailMultiAlternatives( |
| subject=subject, |
| body=text_content, |
| from_email=from_email, |
| to=[to_email], |
| connection=backend, |
| ) |
| msg.attach_alternative(html_content, "text/html") |
| msg.send() |
| logger.info(f"Auth email sent to {to_email} via DB backend") |
| return True |
| except Exception as e: |
| logger.error(f"DB backend failed to send auth email to {to_email}: {e}") |
| return False |
|
|
| if _should_use_resend(): |
| return _send_via_resend(to_email, subject, text_content, html_content) |
|
|
| try: |
| send_mail( |
| subject=subject, |
| message=text_content, |
| from_email=getattr(settings, "DEFAULT_FROM_EMAIL", "noreply@localhost"), |
| recipient_list=[to_email], |
| html_message=html_content, |
| fail_silently=False, |
| ) |
| logger.info(f"Auth email sent to {to_email} via env backend") |
| return True |
| except Exception as e: |
| logger.error(f"Env backend failed to send auth email to {to_email}: {e}") |
| return False |
|
|
|
|
| def _should_use_resend() -> bool: |
| """Check if Resend API should be used.""" |
| return ( |
| hasattr(settings, "RESEND_API_KEY") and |
| settings.RESEND_API_KEY and |
| getattr(settings, "USE_RESEND", False) |
| ) |
|
|
|
|
| def _send_via_resend(to_email: str, subject: str, text_content: str, html_content: str) -> bool: |
| """ |
| Send email via Resend API. |
| |
| Requires: |
| - RESEND_API_KEY in settings |
| - USE_RESEND = True in settings |
| - resend package installed |
| """ |
| try: |
| import resend |
| resend.api_key = settings.RESEND_API_KEY |
|
|
| params = { |
| "from": getattr(settings, "DEFAULT_FROM_EMAIL", "noreply@localhost"), |
| "to": [to_email], |
| "subject": subject, |
| "text": text_content, |
| "html": html_content, |
| } |
|
|
| response = resend.Emails.send(params) |
| logger.info(f"Resend email sent to {to_email}, id: {response.get('id')}") |
| return True |
|
|
| except ImportError: |
| logger.error("resend package not installed. Run: pip install resend") |
| return False |
| except Exception as e: |
| logger.error(f"Resend API error: {e}") |
| return False |
|
|
