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justin 5123c85397 Add auth foundation: sessions/tokens schema, Argon2 hashing, config
Two tables (sessions, user_tokens) + migration; only token *hashes* are stored, so a DB leak yields no usable credential. Argon2id password hashing and token primitives in app/core/security. Config and .env.example gain session/cookie/token TTLs, app base URL, and SMTP settings (twelve-factor). Migration verified reversible (drops the token_purpose enum) and matches the models.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Justin Paul <justin@jpaul.me>
2026-06-06 10:51:51 -04:00

50 lines
1.5 KiB
Python

"""Application configuration.
Twelve-factor: everything is read from the environment. Defaults are
development-friendly; production supplies real values via the compose `.env`.
No secrets or endpoints are hard-coded.
"""
from functools import lru_cache
from pydantic import Field
from pydantic_settings import BaseSettings, SettingsConfigDict
class Settings(BaseSettings):
model_config = SettingsConfigDict(
env_file=".env",
env_file_encoding="utf-8",
extra="ignore",
)
app_name: str = "Provenance"
version: str = "0.0.0"
app_env: str = Field(default="development", description="development | production")
# SQLAlchemy async URL, e.g. postgresql+asyncpg://user:pass@host:5432/db
database_url: str = Field(
default="postgresql+asyncpg://provenance:provenance@localhost:5432/provenance",
)
# --- Auth / sessions ---
session_ttl_days: int = 30
token_ttl_hours: int = 24 # email-verify / password-reset token lifetime
cookie_name: str = "provenance_session"
cookie_secure: bool = True # set false for local http; true behind TLS
# Base URL used to build links in outbound email.
app_base_url: str = "http://localhost"
# --- Email (SMTP) ---
mailer: str = Field(default="console", description="console | smtp")
smtp_host: str | None = None
smtp_port: int = 587
smtp_username: str | None = None
smtp_password: str | None = None
smtp_from: str = "Provenance <no-reply@provenance.local>"
@lru_cache
def get_settings() -> Settings:
return Settings()