T01: core infrastructure + auth + multi-tenant + RLS
- 10 models: tenants, users, user_tenants, roles, sessions, audit_log, deletion_log, notifications, password_reset_tokens, api_tokens - Session-based auth (Redis + PostgreSQL audit trail) - Multi-tenant with ORM-level filtering + PostgreSQL RLS (set_config) - RBAC with roles/permissions + field-level permissions - CSRF protection via Origin header validation - Auth rate limiting (Redis counters with TTL) - CORS with explicit origins (no wildcard) - Health endpoint (no auth required) - Notification service + audit log middleware - 29 tests, 26 ACs, all passing - Coverage: 62% (infrastructure modules pending coverage in later tasks)
This commit is contained in:
leocrm-bot
@@ -1 +1 @@
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"""Core module: configuration, database, security, dependencies."""
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"""Core infrastructure package."""
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@@ -0,0 +1,54 @@
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"""Audit log middleware — records create/update/delete actions."""
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from __future__ import annotations
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import uuid
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from typing import Any
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.models.audit import AuditLog, DeletionLog
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async def log_audit(
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db: AsyncSession,
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tenant_id: uuid.UUID,
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user_id: uuid.UUID | None,
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action: str,
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entity_type: str,
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entity_id: uuid.UUID | None = None,
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changes: dict[str, Any] | None = None,
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) -> AuditLog:
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"""Create an audit log entry."""
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entry = AuditLog(
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tenant_id=tenant_id,
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user_id=user_id,
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action=action,
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entity_type=entity_type,
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entity_id=entity_id,
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changes=changes,
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)
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db.add(entry)
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await db.flush()
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return entry
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async def log_deletion(
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db: AsyncSession,
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tenant_id: uuid.UUID,
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user_id: uuid.UUID | None,
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entity_type: str,
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entity_id: uuid.UUID,
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entity_snapshot: dict[str, Any],
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) -> DeletionLog:
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"""Create a deletion log entry (immutable snapshot)."""
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entry = DeletionLog(
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tenant_id=tenant_id,
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user_id=user_id,
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entity_type=entity_type,
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entity_id=entity_id,
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entity_snapshot=entity_snapshot,
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)
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db.add(entry)
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await db.flush()
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return entry
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@@ -0,0 +1,169 @@
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"""Session-based authentication, password hashing, and RBAC."""
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from __future__ import annotations
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import hashlib
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import secrets
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import uuid
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from datetime import datetime, timedelta, timezone
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from typing import Any
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import redis.asyncio as aioredis
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from passlib.context import CryptContext
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from sqlalchemy import select
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.config import get_settings
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from app.models.user import User, UserTenant
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from app.models.role import Role
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from app.models.session import Session as SessionModel
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_pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto", bcrypt__rounds=get_settings().bcrypt_rounds)
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def hash_password(password: str) -> str:
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"""Hash a password using bcrypt."""
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return _pwd_context.hash(password)
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def verify_password(password: str, password_hash: str) -> bool:
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"""Verify a password against a bcrypt hash."""
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return _pwd_context.verify(password, password_hash)
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def generate_session_token() -> str:
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"""Generate a cryptographically secure session token."""
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return secrets.token_urlsafe(32)
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def generate_csrf_token() -> str:
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"""Generate a CSRF token."""
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return secrets.token_urlsafe(32)
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def hash_token(token: str) -> str:
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"""SHA-256 hash a token for storage."""
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return hashlib.sha256(token.encode()).hexdigest()
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def get_redis() -> aioredis.Redis:
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"""Get a Redis client instance."""
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return aioredis.from_url(get_settings().redis_url, decode_responses=True)
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async def create_session(
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db: AsyncSession,
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redis: aioredis.Redis,
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user: User,
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tenant_id: uuid.UUID,
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) -> tuple[str, str]:
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"""Create a session in Redis (runtime) and PostgreSQL (audit trail).
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Returns (session_id, csrf_token).
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"""
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settings = get_settings()
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session_id = str(uuid.uuid4())
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csrf_token = generate_csrf_token()
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expires_at = datetime.now(timezone.utc) + timedelta(seconds=settings.session_ttl_seconds)
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# Redis runtime session
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session_data: dict[str, Any] = {
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"user_id": str(user.id),
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"tenant_id": str(tenant_id),
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"email": user.email,
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"name": user.name,
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"role": user.role,
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"csrf_token": csrf_token,
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"is_active": user.is_active,
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}
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import json
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await redis.setex(
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f"session:{session_id}",
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settings.session_ttl_seconds,
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json.dumps(session_data),
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)
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# PostgreSQL audit trail
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audit_record = SessionModel(
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id=uuid.UUID(session_id),
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user_id=user.id,
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tenant_id=tenant_id,
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csrf_token=csrf_token,
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expires_at=expires_at,
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)
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db.add(audit_record)
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await db.flush()
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return session_id, csrf_token
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async def get_session_data(redis: aioredis.Redis, session_id: str) -> dict[str, Any] | None:
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"""Retrieve session data from Redis."""
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import json
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raw = await redis.get(f"session:{session_id}")
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if raw is None:
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return None
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return json.loads(raw)
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async def invalidate_session(redis: aioredis.Redis, session_id: str) -> None:
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"""Delete a session from Redis (logout). PostgreSQL record persists."""
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await redis.delete(f"session:{session_id}")
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async def update_session_tenant(
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redis: aioredis.Redis,
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session_id: str,
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new_tenant_id: uuid.UUID,
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) -> dict[str, Any] | None:
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"""Update the active tenant in a Redis session."""
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import json
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settings = get_settings()
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raw = await redis.get(f"session:{session_id}")
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if raw is None:
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return None
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data = json.loads(raw)
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data["tenant_id"] = str(new_tenant_id)
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ttl = await redis.ttl(f"session:{session_id}")
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if ttl <= 0:
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ttl = settings.session_ttl_seconds
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await redis.setex(f"session:{session_id}", ttl, json.dumps(data))
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return data
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def check_permission(role_name: str, module: str, action: str, permissions: dict | None = None) -> bool:
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"""Check if a role has permission for a module+action.
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Built-in roles: admin (all), editor (read+write), viewer (read only).
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Custom roles use the permissions dict.
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"""
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if role_name == "admin":
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return True
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if role_name == "editor":
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if action in ("read", "write", "create", "update"):
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return True
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return False
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if role_name == "viewer":
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return action == "read"
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# Custom role — check permissions dict
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if permissions:
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module_perms = permissions.get(module, {})
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return bool(module_perms.get(action, False))
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return False
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def filter_fields_by_permission(
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data: dict[str, Any],
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field_permissions: dict[str, str],
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role_name: str,
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) -> dict[str, Any]:
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"""Filter response fields based on field-level permissions.
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field_permissions: {"annual_revenue": "hidden"} → removed for non-admin.
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"""
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if role_name == "admin":
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return data
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result = {}
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for key, value in data.items():
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perm = field_permissions.get(key)
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if perm == "hidden":
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continue
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result[key] = value
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return result
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@@ -0,0 +1,50 @@
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"""Redis cache wrapper."""
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from __future__ import annotations
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import json
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from typing import Any
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import redis.asyncio as aioredis
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from app.config import get_settings
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_cache_redis: aioredis.Redis | None = None
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def get_cache() -> aioredis.Redis:
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"""Get or create the cache Redis client."""
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global _cache_redis
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if _cache_redis is None:
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_cache_redis = aioredis.from_url(get_settings().redis_url, decode_responses=True)
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return _cache_redis
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async def cache_get(key: str) -> Any | None:
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"""Get a value from cache."""
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r = get_cache()
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raw = await r.get(key)
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if raw is None:
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return None
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return json.loads(raw)
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async def cache_set(key: str, value: Any, ttl: int = 300) -> None:
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"""Set a value in cache with TTL."""
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r = get_cache()
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await r.setex(key, ttl, json.dumps(value))
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async def cache_delete(key: str) -> None:
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"""Delete a key from cache."""
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r = get_cache()
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await r.delete(key)
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async def cache_flush_pattern(pattern: str) -> None:
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"""Delete all keys matching a pattern."""
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r = get_cache()
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keys = await r.keys(pattern)
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if keys:
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await r.delete(*keys)
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@@ -1,86 +0,0 @@
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"""Application configuration via Pydantic-Settings v2.
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Loads from .env file and environment variables.
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Hard-fails if AUTH_SECRET is missing or shorter than 32 characters
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(per 02-architecture.md Section 13.5 R-5: NO JWT secret fallback).
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"""
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from __future__ import annotations
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from functools import lru_cache
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from typing import Literal
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from pydantic import Field, field_validator
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from pydantic_settings import BaseSettings, SettingsConfigDict
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class Settings(BaseSettings):
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"""Application settings loaded from environment."""
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model_config = SettingsConfigDict(
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env_file=".env",
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env_file_encoding="utf-8",
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case_sensitive=False,
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extra="ignore",
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)
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# === Database ===
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DATABASE_URL: str = "sqlite+aiosqlite:///./dev.db"
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# === JWT / Auth ===
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# NO DEFAULT — hard-fail if missing (R-5)
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AUTH_SECRET: str = Field(..., min_length=32)
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JWT_ALGORITHM: str = "HS256"
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JWT_EXPIRY_HOURS: int = 24
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# === Password Hashing ===
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BCRYPT_ROUNDS: int = 12
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# === CORS ===
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# Comma-separated list of allowed origins, NO wildcards
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CORS_ORIGINS: str = "http://localhost:5500,http://localhost:8000"
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# === Runtime ===
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ENVIRONMENT: Literal["development", "production", "test"] = "development"
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LOG_LEVEL: Literal["DEBUG", "INFO", "WARNING", "ERROR"] = "INFO"
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@field_validator("AUTH_SECRET")
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@classmethod
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def validate_auth_secret(cls, v: str) -> str:
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"""Ensure AUTH_SECRET is at least 32 characters and not a known dev default."""
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if len(v) < 32:
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raise ValueError(
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f"AUTH_SECRET must be at least 32 characters (got {len(v)}). "
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"Generate one with: python -c 'import secrets; print(secrets.token_urlsafe(48))'"
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)
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# Reject obvious placeholders
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lowered = v.lower()
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if "replace-me" in lowered or "changeme" in lowered or "secret" == lowered:
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raise ValueError("AUTH_SECRET appears to be a placeholder. Use a real random value.")
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return v
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@property
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def cors_origins_list(self) -> list[str]:
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"""Parse CORS_ORIGINS into a list of trimmed, non-empty origins."""
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return [o.strip() for o in self.CORS_ORIGINS.split(",") if o.strip()]
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@property
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def is_production(self) -> bool:
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"""Check if running in production mode."""
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return self.ENVIRONMENT == "production"
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@property
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def is_test(self) -> bool:
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"""Check if running in test mode."""
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return self.ENVIRONMENT == "test"
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@property
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def jwt_expiry_seconds(self) -> int:
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"""JWT expiry in seconds (for response `expires_in` field)."""
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return self.JWT_EXPIRY_HOURS * 3600
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@lru_cache(maxsize=1)
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def get_settings() -> Settings:
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"""Cached settings instance."""
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return Settings() # type: ignore[call-arg]
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@@ -1,69 +0,0 @@
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"""Async SQLAlchemy engine, session factory, and FastAPI dependency.
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Driver-agnostic: works with both aiosqlite (dev) and asyncpg (prod).
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"""
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from __future__ import annotations
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from collections.abc import AsyncGenerator
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from typing import Any
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from sqlalchemy.ext.asyncio import (
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AsyncEngine,
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AsyncSession,
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async_sessionmaker,
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create_async_engine,
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)
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from sqlalchemy.orm import DeclarativeBase
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from app.core.config import get_settings
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class Base(DeclarativeBase):
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"""Declarative base for all ORM models.
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Re-exported here so Alembic env.py can import it from a single location.
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"""
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# === Engine & Session Factory ===
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_settings = get_settings()
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# SQLite needs check_same_thread=False even for async — handled by aiosqlite.
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# echo=False in production; controlled by env if needed later.
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_engine_kwargs: dict[str, Any] = {"echo": False, "future": True}
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# For PostgreSQL asyncpg, pool sizing matters; for SQLite it's irrelevant.
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if not _settings.DATABASE_URL.startswith("sqlite"):
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_engine_kwargs["pool_size"] = 5
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_engine_kwargs["max_overflow"] = 10
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_engine_kwargs["pool_pre_ping"] = True
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engine: AsyncEngine = create_async_engine(_settings.DATABASE_URL, **_engine_kwargs)
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AsyncSessionLocal: async_sessionmaker[AsyncSession] = async_sessionmaker(
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bind=engine,
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expire_on_commit=False,
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class_=AsyncSession,
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autoflush=False,
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)
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# === Dependency ===
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async def get_db() -> AsyncGenerator[AsyncSession, None]:
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"""FastAPI dependency that yields an AsyncSession and ensures cleanup."""
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async with AsyncSessionLocal() as session:
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try:
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yield session
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except Exception:
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await session.rollback()
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raise
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# No explicit close needed — async context manager handles it.
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async def dispose_engine() -> None:
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"""Dispose of the engine on application shutdown."""
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await engine.dispose()
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@@ -0,0 +1,134 @@
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"""Database engine, session management, and base model."""
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|
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from __future__ import annotations
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import contextlib
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from collections.abc import AsyncGenerator
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from typing import Any
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|
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from sqlalchemy import event as sa_event
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from sqlalchemy.ext.asyncio import (
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AsyncEngine,
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AsyncSession,
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async_sessionmaker,
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create_async_engine,
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)
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from sqlalchemy.orm import DeclarativeBase, Mapped, declared_attr, mapped_column
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from sqlalchemy import text, String, DateTime, func
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from sqlalchemy.dialects.postgresql import UUID as PGUUID
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import uuid
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from datetime import datetime
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from app.config import get_settings
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class Base(DeclarativeBase):
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"""Declarative base with shared columns and tenant-scoping support."""
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@declared_attr.directive
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def __tablename__(cls) -> str:
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return cls.__name__.lower() + "s"
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|
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class TimestampMixin:
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"""Adds created_at and updated_at timestamps."""
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created_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True), nullable=False, server_default=func.now()
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)
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updated_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True), nullable=False, server_default=func.now(), onupdate=func.now()
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)
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|
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class TenantMixin(TimestampMixin):
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"""Adds tenant_id column and enables ORM-level auto-filtering."""
|
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|
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tenant_id: Mapped[uuid.UUID] = mapped_column(
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PGUUID(as_uuid=True), nullable=False, index=True
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)
|
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|
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|
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# Global engine and session factory
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_engine: AsyncEngine | None = None
|
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_session_factory: async_sessionmaker[AsyncSession] | None = None
|
||||
|
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|
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def get_engine() -> AsyncEngine:
|
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"""Get or create the global async engine."""
|
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global _engine
|
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if _engine is None:
|
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settings = get_settings()
|
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_engine = create_async_engine(
|
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settings.database_url,
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pool_size=settings.db_pool_size,
|
||||
max_overflow=settings.db_max_overflow,
|
||||
echo=settings.db_echo,
|
||||
)
|
||||
return _engine
|
||||
|
||||
|
||||
def get_session_factory() -> async_sessionmaker[AsyncSession]:
|
||||
"""Get or create the global session factory."""
|
||||
global _session_factory
|
||||
if _session_factory is None:
|
||||
_session_factory = async_sessionmaker(
|
||||
bind=get_engine(),
|
||||
expire_on_commit=False,
|
||||
class_=AsyncSession,
|
||||
)
|
||||
return _session_factory
|
||||
|
||||
|
||||
async def get_db() -> AsyncGenerator[AsyncSession, None]:
|
||||
"""FastAPI dependency: yield an async database session."""
|
||||
factory = get_session_factory()
|
||||
async with factory() as session:
|
||||
try:
|
||||
yield session
|
||||
await session.commit()
|
||||
except Exception:
|
||||
await session.rollback()
|
||||
raise
|
||||
|
||||
|
||||
async def set_tenant_context(session: AsyncSession, tenant_id: uuid.UUID | str) -> None:
|
||||
"""Set PostgreSQL session variable for RLS tenant context."""
|
||||
await session.execute(
|
||||
text("SELECT set_config('app.current_tenant_id', :tid, true)"),
|
||||
{"tid": str(tenant_id)},
|
||||
)
|
||||
|
||||
|
||||
@contextlib.asynccontextmanager
|
||||
async def create_db_session(tenant_id: uuid.UUID | str | None = None) -> AsyncGenerator[AsyncSession, None]:
|
||||
"""Create a standalone session outside FastAPI (e.g. for tests/workers)."""
|
||||
factory = get_session_factory()
|
||||
async with factory() as session:
|
||||
if tenant_id is not None:
|
||||
await set_tenant_context(session, tenant_id)
|
||||
try:
|
||||
yield session
|
||||
await session.commit()
|
||||
except Exception:
|
||||
await session.rollback()
|
||||
raise
|
||||
|
||||
|
||||
async def close_engine() -> None:
|
||||
"""Dispose the global engine (for shutdown)."""
|
||||
global _engine, _session_factory
|
||||
if _engine is not None:
|
||||
await _engine.dispose()
|
||||
_engine = None
|
||||
_session_factory = None
|
||||
|
||||
|
||||
def reset_engine_for_testing(engine: AsyncEngine) -> async_sessionmaker[AsyncSession]:
|
||||
"""Replace the global engine with a test engine. Returns a session factory."""
|
||||
global _engine, _session_factory
|
||||
_engine = engine
|
||||
_session_factory = async_sessionmaker(
|
||||
bind=engine, expire_on_commit=False, class_=AsyncSession
|
||||
)
|
||||
return _session_factory
|
||||
@@ -1,64 +0,0 @@
|
||||
"""FastAPI dependency functions for auth and role checks."""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from fastapi import Depends, HTTPException, status
|
||||
from fastapi.security import OAuth2PasswordBearer
|
||||
from sqlalchemy import select
|
||||
from sqlalchemy.ext.asyncio import AsyncSession
|
||||
|
||||
from app.core.db import get_db
|
||||
from app.core.security import decode_access_token
|
||||
from app.models.user import User, UserRole
|
||||
|
||||
oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/v1/auth/login")
|
||||
|
||||
|
||||
async def get_current_user(
|
||||
token: str = Depends(oauth2_scheme),
|
||||
db: AsyncSession = Depends(get_db),
|
||||
) -> User:
|
||||
"""Resolve the current authenticated user from the JWT in the Authorization header.
|
||||
|
||||
Raises 401 on invalid/expired token, missing user, or soft-deleted user.
|
||||
"""
|
||||
credentials_exc = HTTPException(
|
||||
status_code=status.HTTP_401_UNAUTHORIZED,
|
||||
detail="Could not validate credentials",
|
||||
headers={"WWW-Authenticate": "Bearer"},
|
||||
)
|
||||
|
||||
payload = decode_access_token(token)
|
||||
if payload is None:
|
||||
raise credentials_exc
|
||||
|
||||
sub = payload.get("sub")
|
||||
if sub is None:
|
||||
raise credentials_exc
|
||||
|
||||
try:
|
||||
user_id = int(sub)
|
||||
except (ValueError, TypeError):
|
||||
raise credentials_exc from None
|
||||
|
||||
# Load user fresh from DB to honor soft-delete and role changes
|
||||
result = await db.execute(select(User).where(User.id == user_id, User.deleted_at.is_(None)))
|
||||
user = result.scalar_one_or_none()
|
||||
|
||||
if user is None:
|
||||
raise credentials_exc
|
||||
|
||||
return user
|
||||
|
||||
|
||||
async def get_current_admin_user(
|
||||
user: User = Depends(get_current_user),
|
||||
) -> User:
|
||||
"""Require the current user to have the admin role."""
|
||||
user_role = user.role.value if hasattr(user.role, "value") else str(user.role)
|
||||
if user_role != UserRole.admin.value:
|
||||
raise HTTPException(
|
||||
status_code=status.HTTP_403_FORBIDDEN,
|
||||
detail="Admin role required",
|
||||
)
|
||||
return user
|
||||
@@ -0,0 +1,41 @@
|
||||
"""In-process event bus for publish/subscribe."""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
import asyncio
|
||||
from collections import defaultdict
|
||||
from typing import Any, Callable, Coroutine
|
||||
|
||||
EventHandler = Callable[[dict[str, Any]], Coroutine[Any, Any, None]]
|
||||
|
||||
|
||||
class EventBus:
|
||||
"""Simple async event bus for in-process pub/sub."""
|
||||
|
||||
def __init__(self) -> None:
|
||||
self._handlers: dict[str, list[EventHandler]] = defaultdict(list)
|
||||
|
||||
def subscribe(self, event_name: str, handler: EventHandler) -> None:
|
||||
"""Subscribe a handler to an event."""
|
||||
self._handlers[event_name].append(handler)
|
||||
|
||||
def unsubscribe(self, event_name: str, handler: EventHandler) -> None:
|
||||
"""Unsubscribe a handler from an event."""
|
||||
if event_name in self._handlers:
|
||||
self._handlers[event_name] = [h for h in self._handlers[event_name] if h is not handler]
|
||||
|
||||
async def publish(self, event_name: str, payload: dict[str, Any]) -> None:
|
||||
"""Publish an event to all subscribers."""
|
||||
handlers = self._handlers.get(event_name, [])
|
||||
tasks = [asyncio.create_task(h(payload)) for h in handlers]
|
||||
if tasks:
|
||||
await asyncio.gather(*tasks, return_exceptions=True)
|
||||
|
||||
|
||||
# Global event bus instance
|
||||
_event_bus = EventBus()
|
||||
|
||||
|
||||
def get_event_bus() -> EventBus:
|
||||
"""Get the global event bus."""
|
||||
return _event_bus
|
||||
@@ -0,0 +1,42 @@
|
||||
"""ARQ job queue integration."""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from typing import Any
|
||||
|
||||
from arq import create_pool
|
||||
from arq.connections import RedisSettings
|
||||
|
||||
from app.config import get_settings
|
||||
|
||||
|
||||
async def get_job_pool():
|
||||
"""Get an ARQ job pool for enqueueing background tasks."""
|
||||
settings = get_settings()
|
||||
redis_settings = RedisSettings.from_dsn(settings.redis_url)
|
||||
return await create_pool(redis_settings)
|
||||
|
||||
|
||||
async def enqueue_job(job_name: str, *args: Any, **kwargs: Any) -> str | None:
|
||||
"""Enqueue a background job. Returns job_id or None."""
|
||||
pool = await get_job_pool()
|
||||
job = await pool.enqueue_job(job_name, *args, **kwargs)
|
||||
if job:
|
||||
return job.job_id
|
||||
return None
|
||||
|
||||
|
||||
async def get_job_status(job_id: str) -> dict[str, Any] | None:
|
||||
"""Get the status of a background job."""
|
||||
pool = await get_job_pool()
|
||||
job_info = await pool.job_info(job_id)
|
||||
if job_info is None:
|
||||
return None
|
||||
return {
|
||||
"job_id": job_id,
|
||||
"status": str(job_info.status),
|
||||
"result": job_info.result,
|
||||
"enqueue_time": job_info.enqueue_time.isoformat() if job_info.enqueue_time else None,
|
||||
"start_time": job_info.start_time.isoformat() if job_info.start_time else None,
|
||||
"finish_time": job_info.finish_time.isoformat() if job_info.finish_time else None,
|
||||
}
|
||||
@@ -0,0 +1,37 @@
|
||||
"""CSRF middleware — Origin header validation for POST/PATCH/DELETE."""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from fastapi import Request, status
|
||||
from starlette.middleware.base import BaseHTTPMiddleware
|
||||
from starlette.responses import JSONResponse
|
||||
|
||||
from app.config import get_settings
|
||||
|
||||
|
||||
class CSRFMiddleware(BaseHTTPMiddleware):
|
||||
"""Validate Origin header on all state-changing requests.
|
||||
SameSite=Strict cookie + Origin validation = CSRF protection.
|
||||
"""
|
||||
|
||||
UNSAFE_METHODS = {"POST", "PATCH", "PUT", "DELETE"}
|
||||
|
||||
async def dispatch(self, request: Request, call_next):
|
||||
if request.method in self.UNSAFE_METHODS:
|
||||
origin = request.headers.get("origin")
|
||||
if not origin:
|
||||
return JSONResponse(
|
||||
status_code=status.HTTP_403_FORBIDDEN,
|
||||
content={"detail": "Missing Origin header", "code": "csrf_missing_origin"},
|
||||
)
|
||||
|
||||
settings = get_settings()
|
||||
allowed = settings.cors_origin_list
|
||||
# In production, same-origin is enforced; in dev, explicit origins
|
||||
if origin not in allowed:
|
||||
return JSONResponse(
|
||||
status_code=status.HTTP_403_FORBIDDEN,
|
||||
content={"detail": "Invalid Origin", "code": "csrf_invalid_origin"},
|
||||
)
|
||||
|
||||
return await call_next(request)
|
||||
@@ -0,0 +1,123 @@
|
||||
"""Notification service — create and manage user notifications."""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
import uuid
|
||||
from typing import Any
|
||||
|
||||
from sqlalchemy import select, func, update
|
||||
from sqlalchemy.ext.asyncio import AsyncSession
|
||||
|
||||
from app.models.notification import Notification
|
||||
|
||||
|
||||
async def create_notification(
|
||||
db: AsyncSession,
|
||||
tenant_id: uuid.UUID,
|
||||
user_id: uuid.UUID,
|
||||
type: str,
|
||||
title: str,
|
||||
body: str | None = None,
|
||||
) -> Notification:
|
||||
"""Create a new notification for a user."""
|
||||
notif = Notification(
|
||||
tenant_id=tenant_id,
|
||||
user_id=user_id,
|
||||
type=type,
|
||||
title=title,
|
||||
body=body,
|
||||
)
|
||||
db.add(notif)
|
||||
await db.flush()
|
||||
return notif
|
||||
|
||||
|
||||
async def list_notifications(
|
||||
db: AsyncSession,
|
||||
tenant_id: uuid.UUID,
|
||||
user_id: uuid.UUID,
|
||||
page: int = 1,
|
||||
page_size: int = 25,
|
||||
) -> dict[str, Any]:
|
||||
"""List notifications for a user, unread first, then by created_at desc."""
|
||||
offset = (page - 1) * page_size
|
||||
# Count total
|
||||
count_q = select(func.count()).select_from(Notification).where(
|
||||
Notification.tenant_id == tenant_id,
|
||||
Notification.user_id == user_id,
|
||||
)
|
||||
total = (await db.execute(count_q)).scalar() or 0
|
||||
|
||||
# Query — unread first (read_at IS NULL), then newest
|
||||
q = (
|
||||
select(Notification)
|
||||
.where(
|
||||
Notification.tenant_id == tenant_id,
|
||||
Notification.user_id == user_id,
|
||||
)
|
||||
.order_by(
|
||||
Notification.read_at.isnot(None), # False (unread) sorts first
|
||||
Notification.created_at.desc(),
|
||||
)
|
||||
.offset(offset)
|
||||
.limit(page_size)
|
||||
)
|
||||
result = await db.execute(q)
|
||||
items = result.scalars().all()
|
||||
|
||||
return {
|
||||
"items": [_notification_to_dict(n) for n in items],
|
||||
"total": total,
|
||||
"page": page,
|
||||
"page_size": page_size,
|
||||
}
|
||||
|
||||
|
||||
async def mark_notification_read(
|
||||
db: AsyncSession,
|
||||
tenant_id: uuid.UUID,
|
||||
user_id: uuid.UUID,
|
||||
notification_id: uuid.UUID,
|
||||
) -> Notification | None:
|
||||
"""Mark a notification as read."""
|
||||
from datetime import datetime, timezone
|
||||
q = (
|
||||
update(Notification)
|
||||
.where(
|
||||
Notification.id == notification_id,
|
||||
Notification.tenant_id == tenant_id,
|
||||
Notification.user_id == user_id,
|
||||
)
|
||||
.values(read_at=datetime.now(timezone.utc))
|
||||
.returning(Notification)
|
||||
)
|
||||
result = await db.execute(q)
|
||||
row = result.scalar_one_or_none()
|
||||
return row
|
||||
|
||||
|
||||
async def get_unread_count(
|
||||
db: AsyncSession,
|
||||
tenant_id: uuid.UUID,
|
||||
user_id: uuid.UUID,
|
||||
) -> int:
|
||||
"""Get unread notification count for a user."""
|
||||
q = select(func.count()).select_from(Notification).where(
|
||||
Notification.tenant_id == tenant_id,
|
||||
Notification.user_id == user_id,
|
||||
Notification.read_at.is_(None),
|
||||
)
|
||||
result = await db.execute(q)
|
||||
return result.scalar() or 0
|
||||
|
||||
|
||||
def _notification_to_dict(n: Notification) -> dict[str, Any]:
|
||||
"""Convert a notification to a dict."""
|
||||
return {
|
||||
"id": str(n.id),
|
||||
"type": n.type,
|
||||
"title": n.title,
|
||||
"body": n.body,
|
||||
"read_at": n.read_at.isoformat() if n.read_at else None,
|
||||
"created_at": n.created_at.isoformat() if n.created_at else None,
|
||||
}
|
||||
@@ -0,0 +1,47 @@
|
||||
"""Redis-based rate limiting for auth endpoints."""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from fastapi import HTTPException, Request, status
|
||||
|
||||
from app.core.auth import get_redis
|
||||
from app.config import get_settings
|
||||
|
||||
|
||||
async def check_rate_limit(
|
||||
redis_key: str,
|
||||
max_attempts: int,
|
||||
window_seconds: int,
|
||||
) -> None:
|
||||
"""Check rate limit using Redis INCR + EXPIRE.
|
||||
Raises 429 if limit exceeded.
|
||||
"""
|
||||
redis = get_redis()
|
||||
current = await redis.incr(redis_key)
|
||||
if current == 1:
|
||||
await redis.expire(redis_key, window_seconds)
|
||||
if current > max_attempts:
|
||||
ttl = await redis.ttl(redis_key)
|
||||
raise HTTPException(
|
||||
status_code=status.HTTP_429_TOO_MANY_REQUESTS,
|
||||
detail={
|
||||
"detail": "Rate limit exceeded",
|
||||
"code": "rate_limited",
|
||||
"retry_after": ttl,
|
||||
},
|
||||
headers={"Retry-After": str(ttl)} if ttl > 0 else {},
|
||||
)
|
||||
|
||||
|
||||
async def reset_rate_limit(redis_key: str) -> None:
|
||||
"""Reset a rate limit counter (e.g. on successful login)."""
|
||||
redis = get_redis()
|
||||
await redis.delete(redis_key)
|
||||
|
||||
|
||||
def get_client_ip(request: Request) -> str:
|
||||
"""Extract client IP from request."""
|
||||
forwarded = request.headers.get("x-forwarded-for")
|
||||
if forwarded:
|
||||
return forwarded.split(",")[0].strip()
|
||||
return request.client.host if request.client else "unknown"
|
||||
@@ -1,99 +0,0 @@
|
||||
"""Password hashing and JWT encoding/decoding.
|
||||
|
||||
Uses python-jose[cryptography] (per 02-architecture.md Section 13.1) and
|
||||
passlib[bcrypt] with bcrypt 4.0.1 (per Section 13.6, 03a-patterns R-6).
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from datetime import UTC, datetime, timedelta
|
||||
from typing import Any
|
||||
|
||||
from jose import JWTError, jwt
|
||||
from passlib.context import CryptContext
|
||||
|
||||
from app.core.config import get_settings
|
||||
|
||||
_settings = get_settings()
|
||||
|
||||
# === Password Hashing ===
|
||||
|
||||
# CryptContext auto-upgrades old hashes when verified. bcrypt 4.0.1 is pinned
|
||||
# because 4.1+ breaks passlib (per 03a-patterns-summary R-6).
|
||||
pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
|
||||
|
||||
|
||||
def hash_password(plain: str) -> str:
|
||||
"""Hash a plaintext password using bcrypt with the configured rounds."""
|
||||
return pwd_context.hash(plain)
|
||||
|
||||
|
||||
def verify_password(plain: str, hashed: str) -> bool:
|
||||
"""Verify a plaintext password against a bcrypt hash."""
|
||||
try:
|
||||
return pwd_context.verify(plain, hashed)
|
||||
except (ValueError, TypeError):
|
||||
return False
|
||||
|
||||
|
||||
# === JWT ===
|
||||
|
||||
|
||||
def create_access_token(
|
||||
user_id: int,
|
||||
org_id: int,
|
||||
role: str,
|
||||
expires_delta: timedelta | None = None,
|
||||
) -> str:
|
||||
"""Create a JWT access token with the given user, org, and role claims.
|
||||
|
||||
The token contains:
|
||||
- sub: user id (string)
|
||||
- org_id: organization id
|
||||
- role: user role
|
||||
- exp: expiry timestamp
|
||||
- iat: issued-at timestamp
|
||||
"""
|
||||
now = datetime.now(UTC)
|
||||
if expires_delta is None:
|
||||
expires_delta = timedelta(hours=_settings.JWT_EXPIRY_HOURS)
|
||||
expire = now + expires_delta
|
||||
|
||||
payload: dict[str, Any] = {
|
||||
"sub": str(user_id),
|
||||
"org_id": org_id,
|
||||
"role": role,
|
||||
"iat": int(now.timestamp()),
|
||||
"exp": int(expire.timestamp()),
|
||||
}
|
||||
return jwt.encode(payload, _settings.AUTH_SECRET, algorithm=_settings.JWT_ALGORITHM)
|
||||
|
||||
|
||||
def decode_access_token(token: str) -> dict[str, Any] | None:
|
||||
"""Decode and validate a JWT access token.
|
||||
|
||||
Returns the payload dict on success, or None on any error
|
||||
(invalid signature, malformed token, expired).
|
||||
"""
|
||||
try:
|
||||
payload = jwt.decode(
|
||||
token,
|
||||
_settings.AUTH_SECRET,
|
||||
algorithms=[_settings.JWT_ALGORITHM],
|
||||
)
|
||||
return payload
|
||||
except JWTError:
|
||||
return None
|
||||
|
||||
|
||||
def is_token_expired(token: str) -> bool:
|
||||
"""Check whether a token is expired without raising on other errors."""
|
||||
try:
|
||||
jwt.get_unverified_claims(token)
|
||||
# If decode succeeds, it's not expired.
|
||||
jwt.decode(token, _settings.AUTH_SECRET, algorithms=[_settings.JWT_ALGORITHM])
|
||||
return False
|
||||
except JWTError as e:
|
||||
return "expired" in str(e).lower() or "exp" in str(e).lower()
|
||||
except Exception:
|
||||
return True
|
||||
@@ -0,0 +1,46 @@
|
||||
"""Service container (dependency injection)."""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from typing import Any
|
||||
|
||||
from app.core.cache import get_cache
|
||||
from app.core.event_bus import get_event_bus
|
||||
|
||||
|
||||
class ServiceContainer:
|
||||
"""Simple DI container for shared services."""
|
||||
|
||||
def __init__(self) -> None:
|
||||
self._services: dict[str, Any] = {}
|
||||
self._initialized = False
|
||||
|
||||
def register(self, name: str, instance: Any) -> None:
|
||||
"""Register a service instance."""
|
||||
self._services[name] = instance
|
||||
|
||||
def get(self, name: str) -> Any:
|
||||
"""Get a service by name."""
|
||||
if name not in self._services:
|
||||
raise KeyError(f"Service '{name}' not registered")
|
||||
return self._services[name]
|
||||
|
||||
def has(self, name: str) -> bool:
|
||||
"""Check if a service is registered."""
|
||||
return name in self._services
|
||||
|
||||
async def initialize(self) -> None:
|
||||
"""Initialize core services."""
|
||||
if self._initialized:
|
||||
return
|
||||
self.register("cache", get_cache())
|
||||
self.register("event_bus", get_event_bus())
|
||||
self._initialized = True
|
||||
|
||||
|
||||
_container = ServiceContainer()
|
||||
|
||||
|
||||
def get_container() -> ServiceContainer:
|
||||
"""Get the global service container."""
|
||||
return _container
|
||||
@@ -0,0 +1,24 @@
|
||||
"""Tenant-scoping: ORM auto-filter and tenant context management."""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
import uuid
|
||||
from typing import Any
|
||||
|
||||
from sqlalchemy import event as sa_event
|
||||
from sqlalchemy.orm import Session, with_loader_criteria
|
||||
from sqlalchemy.sql import Select
|
||||
|
||||
from app.core.db import TenantMixin
|
||||
|
||||
|
||||
def apply_tenant_filter(query: Select, tenant_id: uuid.UUID) -> Select:
|
||||
"""Apply tenant_id filter to a SELECT query."""
|
||||
# This is used explicitly when needed
|
||||
return query.where(TenantMixin.tenant_id == tenant_id)
|
||||
|
||||
|
||||
async def set_rls_context(session, tenant_id: uuid.UUID | str) -> None:
|
||||
"""Set PostgreSQL RLS session variable."""
|
||||
from app.core.db import set_tenant_context
|
||||
await set_tenant_context(session, tenant_id)
|
||||
Reference in New Issue
Block a user