bvandeusen
2f5abc034e
Replace indigo (#6366f1) with deep violet (#7c3aed) gradient header, violet-tinted card border and background, refined border radius and spacing, and violet-accented footer to match the app's design language. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
182 lines
7.0 KiB
Python
182 lines
7.0 KiB
Python
"""Email service for sending notifications via SMTP."""
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import logging
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from email.message import EmailMessage
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import aiosmtplib
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from sqlalchemy import select
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from fabledassistant.config import Config
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from fabledassistant.models import async_session
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from fabledassistant.models.setting import Setting
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from fabledassistant.models.user import User
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logger = logging.getLogger(__name__)
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# Inline SVG logo for email (white palette, renders on indigo header)
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_EMAIL_LOGO_SVG = (
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'<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32" width="32" height="32"'
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' style="display:inline-block;vertical-align:middle;margin-right:8px;">'
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'<path d="M4 7 C4 7 8 5 16 6 C24 5 28 7 28 7 L28 26 C28 26 24 24 16 25 C8 24 4 26 4 26 Z"'
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' fill="#ffffff" stroke="#c4b5fd" stroke-width="0.5"/>'
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'<line x1="16" y1="6" x2="16" y2="25" stroke="#c4b5fd" stroke-width="0.8"/>'
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'<line x1="7" y1="11" x2="14" y2="10.5" stroke="#ddd6fe" stroke-width="0.6" stroke-linecap="round"/>'
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'<line x1="7" y1="14" x2="14" y2="13.5" stroke="#ddd6fe" stroke-width="0.6" stroke-linecap="round"/>'
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'<line x1="7" y1="17" x2="14" y2="16.5" stroke="#ddd6fe" stroke-width="0.6" stroke-linecap="round"/>'
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'<line x1="7" y1="20" x2="12" y2="19.5" stroke="#ddd6fe" stroke-width="0.6" stroke-linecap="round"/>'
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'<line x1="18" y1="10.5" x2="25" y2="11" stroke="#ddd6fe" stroke-width="0.6" stroke-linecap="round"/>'
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'<line x1="18" y1="13.5" x2="25" y2="14" stroke="#ddd6fe" stroke-width="0.6" stroke-linecap="round"/>'
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'<line x1="18" y1="16.5" x2="25" y2="17" stroke="#ddd6fe" stroke-width="0.6" stroke-linecap="round"/>'
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'<g transform="translate(24, 5)">'
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'<path d="M0 -4 L1 -1 L4 0 L1 1 L0 4 L-1 1 L-4 0 L-1 -1 Z" fill="#f6ad55"/>'
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'<path d="M0 -2.5 L0.6 -0.6 L2.5 0 L0.6 0.6 L0 2.5 L-0.6 0.6 L-2.5 0 L-0.6 -0.6 Z" fill="#fbd38d"/>'
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'</g>'
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'<circle cx="20" cy="3" r="0.7" fill="#f6ad55" opacity="0.7"/>'
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'<circle cx="27" cy="8" r="0.5" fill="#fbd38d" opacity="0.6"/>'
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'</svg>'
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)
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def _email_html(title: str, body: str) -> str:
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"""Wrap email body content in the standard Fabled Assistant template."""
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return f"""<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1">
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<meta name="color-scheme" content="light">
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</head>
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<body style="margin:0;padding:0;background:#f5f3ff;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;">
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<div style="padding:36px 16px 48px;">
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<div style="max-width:520px;margin:0 auto;">
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<!-- Card -->
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<div style="background:#ffffff;border:1px solid #ddd6fe;border-radius:14px;overflow:hidden;box-shadow:0 4px 24px rgba(109,40,217,0.08);">
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<!-- Header -->
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<div style="background:linear-gradient(135deg,#7c3aed 0%,#6d28d9 100%);padding:24px 28px;text-align:center;">
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<div style="margin-bottom:8px;">
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{_EMAIL_LOGO_SVG}<span style="display:inline-block;vertical-align:middle;color:#ffffff;font-size:18px;font-weight:700;letter-spacing:0.01em;">Fabled Assistant</span>
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</div>
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<p style="margin:0;color:#ede9fe;font-size:13px;letter-spacing:0.03em;">{title}</p>
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</div>
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<!-- Body -->
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<div style="padding:32px 28px;color:#1e1b4b;">
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{body}
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</div>
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<!-- Footer -->
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<div style="border-top:1px solid #ede9fe;padding:16px 28px;text-align:center;background:#faf5ff;">
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<p style="margin:0;color:#a78bfa;font-size:12px;">Sent by your Fabled Assistant instance.</p>
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</div>
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</div>
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</div>
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</div>
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</body>
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</html>"""
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SMTP_SETTING_KEYS = [
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"smtp_host",
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"smtp_port",
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"smtp_username",
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"smtp_password",
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"smtp_from_address",
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"smtp_from_name",
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"smtp_use_tls",
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]
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async def get_smtp_config() -> dict[str, str]:
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"""Get SMTP config from admin's settings, falling back to env vars."""
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config: dict[str, str] = {
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"smtp_host": Config.SMTP_HOST,
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"smtp_port": str(Config.SMTP_PORT),
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"smtp_username": Config.SMTP_USERNAME,
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"smtp_password": Config.SMTP_PASSWORD,
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"smtp_from_address": Config.SMTP_FROM_ADDRESS,
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"smtp_from_name": Config.SMTP_FROM_NAME,
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"smtp_use_tls": "true" if Config.SMTP_USE_TLS else "false",
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}
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# Override with DB settings from admin user
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async with async_session() as session:
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result = await session.execute(
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select(Setting)
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.join(User, Setting.user_id == User.id)
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.where(User.role == "admin", Setting.key.in_(SMTP_SETTING_KEYS))
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)
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for setting in result.scalars().all():
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config[setting.key] = setting.value
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return config
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async def is_smtp_configured() -> bool:
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"""Check if SMTP is configured (has a host set)."""
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config = await get_smtp_config()
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return bool(config.get("smtp_host"))
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async def get_base_url() -> str:
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"""Get the application base URL from admin settings, falling back to Config.BASE_URL."""
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async with async_session() as session:
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result = await session.execute(
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select(Setting)
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.join(User, Setting.user_id == User.id)
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.where(User.role == "admin", Setting.key == "base_url")
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)
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setting = result.scalars().first()
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if setting and setting.value:
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return setting.value.rstrip("/")
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return Config.BASE_URL.rstrip("/")
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async def send_email(to: str, subject: str, html_body: str) -> None:
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"""Send an email via SMTP."""
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config = await get_smtp_config()
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host = config.get("smtp_host")
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if not host:
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logger.debug("SMTP not configured, skipping email to %s", to)
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return
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port = int(config.get("smtp_port", "587"))
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username = config.get("smtp_username", "")
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password = config.get("smtp_password", "")
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from_address = config.get("smtp_from_address", "")
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from_name = config.get("smtp_from_name", "Fabled Assistant")
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use_tls = config.get("smtp_use_tls", "true") == "true"
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msg = EmailMessage()
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msg["Subject"] = subject
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msg["From"] = f"{from_name} <{from_address}>" if from_name else from_address
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msg["To"] = to
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msg.set_content(subject) # plain text fallback
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msg.add_alternative(html_body, subtype="html")
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try:
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await aiosmtplib.send(
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msg,
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hostname=host,
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port=port,
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username=username or None,
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password=password or None,
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start_tls=use_tls and port != 465,
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use_tls=port == 465,
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)
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logger.info("Email sent to %s: %s", to, subject)
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except Exception:
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logger.exception("Failed to send email to %s: %s", to, subject)
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raise
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async def send_test_email(to: str) -> None:
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"""Send a branded test email."""
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body = """
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<p style="margin:0 0 12px;color:#1e1b4b;font-size:15px;font-weight:600;">SMTP is configured correctly</p>
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<p style="margin:0;color:#6b7280;font-size:14px;">Your Fabled Assistant instance can send email notifications.</p>
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"""
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await send_email(to, "Fabled Assistant - Test Email", _email_html("Test Email", body))
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