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FabledScribe/src/scribe/services/email.py
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bvandeusen b255a0f90e
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refactor: rename package fabledassistant -> scribe (code-only)
Renames src/fabledassistant -> src/scribe and all imports, plus the
default DB name and DB user/password (fabled -> scribe) in config +
compose. 952 refs / 154 files. Reverses the old 'internal name stays
fabledassistant' convention.

Code-only: live databases are still physically named 'fabledassistant'.
Deployed environments must set POSTGRES_DB / POSTGRES_USER (or rename the
DB) since the defaults now resolve to 'scribe'. Repo (FabledScribe), git
host (fabledsword), MCP (fabled-git) and the image name (fabledscribe)
are intentionally unchanged.

ruff check src/ clean locally; CI (typecheck + pytest) is the gate.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-03 15:48:35 -04:00

182 lines
7.0 KiB
Python

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