Files
hunjing/backend/app/models.py
T
chenxin ba502297ac ✨ feat: 阶段 0 收尾——认证边界、请求上下文与垂直切片(WP-01 第 5-7 步)
- 认证:Web Session(__Host- Cookie、HttpOnly/Secure/SameSite=Lax、CSPRNG opaque token 数据库只存哈希)、CSRF 双提交、Origin 校验、dev 登录/登出端点;未认证 401、缺 CSRF 403
- 中间件:Hunjing-Request-ID 回显/生成(request_ UUIDv4)+ W3C traceparent 校验透传;JSON 结构化日志与敏感头脱敏
- 迁移 2:conversation/branch/message/run/idempotency_record 五表(含检查约束与复合索引);Session 补 token/csrf 哈希列
- 垂直切片:POST /v1/conversations/{id}/messages 按 Idempotency-Key 幂等(同键同体 200 重放、异体 409),同事务原子写 Message+Run+Audit+Outbox+幂等记录;ContentBlock text/markdown 判别联合(未知类型 422)
- SSE:GET /v1/runs/{id}/events 返回快照与终止状态事件 envelope
- 测试 26 项全绿:IDOR 跨域 404 fail-closed、失败注入回滚无孤儿(Run 崩溃后 message/run/audit/outbox/幂等全零)、SSE 事件序、auth 边界;ruff/mypy strict 干净
- 修复真实问题:asyncpg 跨事件循环(anyio/pytest-asyncio 双 loop、模块级 engine 改为 app 实例持有)、httpx 拒存 http 下 Secure Cookie
2026-09-10 10:13:45 +08:00

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"""首批领域模型:身份、会话、服务账号、审计与 Outbox(WP-01)。
- 主键为带前缀的 UUIDv7 文本(ADR-015);Session ID 为 CSPRNG opaque(秘密不用 UUID)。
- 命名约定见 app/db/base.py(pk_/uq_/ix_/fk_,AGENTS.md 8.6)。
- AuditEvent 与 OutboxEvent 不可变:无 updated_at,修正写新记录(契约第 4.4 节)。
"""
from datetime import datetime
from typing import Any
from sqlalchemy import CheckConstraint, DateTime, ForeignKey, Index, String, func
from sqlalchemy.dialects.postgresql import JSONB
from sqlalchemy.orm import Mapped, mapped_column
from app.core.ids import new_id
from app.db.base import Base
class User(Base):
__tablename__ = "user"
id: Mapped[str] = mapped_column(String, primary_key=True, default=lambda: new_id("user_"))
email: Mapped[str] = mapped_column(String, nullable=False, unique=True)
display_name: Mapped[str] = mapped_column(String, nullable=False)
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, server_default=func.now()
)
updated_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, server_default=func.now(), onupdate=func.now()
)
class PersonalDomain(Base):
__tablename__ = "personal_domain"
id: Mapped[str] = mapped_column(
String, primary_key=True, default=lambda: new_id("domain_")
)
user_id: Mapped[str] = mapped_column(
ForeignKey("user.id", ondelete="restrict"), nullable=False, index=True
)
name: Mapped[str] = mapped_column(String, nullable=False)
# 区域驻留(ADR-024 之前的数据驻留决策):默认区域,迁移走正式协议
data_region: Mapped[str] = mapped_column(String, nullable=False, default="default")
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, server_default=func.now()
)
class Session(Base):
"""Web 会话:ID 为 CSPRNG opaque value,数据库只存校验值(ADR-015)。"""
__tablename__ = "session"
id: Mapped[str] = mapped_column(String, primary_key=True)
user_id: Mapped[str] = mapped_column(
ForeignKey("user.id", ondelete="cascade"), nullable=False, index=True
)
token_hash: Mapped[str] = mapped_column(String, nullable=False, unique=True)
csrf_token_hash: Mapped[str] = mapped_column(String, nullable=False)
expires_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, index=True
)
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, server_default=func.now()
)
revoked_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
class ServiceAccount(Base):
"""自动化账号:API key 明文只显示一次,只保存哈希、前缀、scope 与撤销状态。"""
__tablename__ = "service_account"
id: Mapped[str] = mapped_column(
String, primary_key=True, default=lambda: new_id("service_account_")
)
domain_id: Mapped[str] = mapped_column(
ForeignKey("personal_domain.id", ondelete="cascade"), nullable=False
)
name: Mapped[str] = mapped_column(String, nullable=False)
key_prefix: Mapped[str] = mapped_column(String, nullable=False, index=True)
key_hash: Mapped[str] = mapped_column(String, nullable=False)
scopes: Mapped[list[str]] = mapped_column(JSONB, nullable=False, default=list)
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, server_default=func.now()
)
revoked_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
__table_args__ = (Index("uq_service_account_domain_name", "domain_id", "name", unique=True),)
class AuditEvent(Base):
"""不可变审计链:状态与 Outbox 在同一事务提交(契约第 4.4 节)。"""
__tablename__ = "audit_event"
id: Mapped[str] = mapped_column(String, primary_key=True, default=lambda: new_id("audit_"))
occurred_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, server_default=func.now()
)
actor_type: Mapped[str] = mapped_column(String, nullable=False)
actor_id: Mapped[str] = mapped_column(String, nullable=False)
action: Mapped[str] = mapped_column(String, nullable=False)
aggregate_type: Mapped[str] = mapped_column(String, nullable=False)
aggregate_id: Mapped[str] = mapped_column(String, nullable=False)
payload: Mapped[dict[str, Any] | None] = mapped_column(JSONB, nullable=True)
trace_id: Mapped[str | None] = mapped_column(String, nullable=True)
__table_args__ = (
# 聚合时间线是审计的主要查询路径(最左前缀覆盖聚合定位)
Index("ix_audit_event_aggregate", "aggregate_type", "aggregate_id", "occurred_at"),
Index("ix_audit_event_occurred_at", "occurred_at"),
)
class OutboxEvent(Base):
"""Transactional Outbox:已提交领域事实的可靠投递队列。"""
__tablename__ = "outbox_event"
id: Mapped[str] = mapped_column(String, primary_key=True, default=lambda: new_id("event_"))
occurred_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, server_default=func.now()
)
aggregate_type: Mapped[str] = mapped_column(String, nullable=False)
aggregate_id: Mapped[str] = mapped_column(String, nullable=False)
event_type: Mapped[str] = mapped_column(String, nullable=False)
payload: Mapped[dict[str, Any]] = mapped_column(JSONB, nullable=False)
status: Mapped[str] = mapped_column(String, nullable=False, default="pending")
attempts: Mapped[int] = mapped_column(nullable=False, default=0)
delivered_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
__table_args__ = (
CheckConstraint(
"status IN ('pending', 'delivered', 'failed')",
name="status_values",
),
# 投递循环按状态+时间扫描待处理事件
Index("ix_outbox_event_status_occurred", "status", "occurred_at"),
Index("ix_outbox_event_aggregate", "aggregate_type", "aggregate_id"),
)
class Conversation(Base):
"""对话容器:归属个人域(垂直切片 WP-03 最小集)。"""
__tablename__ = "conversation"
id: Mapped[str] = mapped_column(
String, primary_key=True, default=lambda: new_id("conversation_")
)
personal_domain_id: Mapped[str] = mapped_column(
ForeignKey("personal_domain.id", ondelete="cascade"), nullable=False, index=True
)
title: Mapped[str] = mapped_column(String, nullable=False, default="未命名对话")
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, server_default=func.now()
)
updated_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, server_default=func.now(), onupdate=func.now()
)
class Branch(Base):
"""对话分支:创建会话时生成默认主分支。"""
__tablename__ = "branch"
id: Mapped[str] = mapped_column(String, primary_key=True, default=lambda: new_id("branch_"))
conversation_id: Mapped[str] = mapped_column(
ForeignKey("conversation.id", ondelete="cascade"), nullable=False, index=True
)
title: Mapped[str] = mapped_column(String, nullable=False, default="主脉")
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, server_default=func.now()
)
class Message(Base):
"""消息:content 为 canonical ContentBlock JSON(本切片为 Text/Markdown 子集)。"""
__tablename__ = "message"
id: Mapped[str] = mapped_column(String, primary_key=True, default=lambda: new_id("message_"))
conversation_id: Mapped[str] = mapped_column(
ForeignKey("conversation.id", ondelete="cascade"), nullable=False, index=True
)
branch_id: Mapped[str] = mapped_column(
ForeignKey("branch.id", ondelete="cascade"), nullable=False, index=True
)
role: Mapped[str] = mapped_column(String, nullable=False)
content: Mapped[list[dict[str, Any]]] = mapped_column(JSONB, nullable=False)
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, server_default=func.now()
)
__table_args__ = (
CheckConstraint("role IN ('user', 'assistant', 'system', 'tool')", name="role_values"),
)
class Run(Base):
"""Agent 执行:状态机见 Agent 运行时第 3 节;本切片空转即完成。"""
__tablename__ = "run"
id: Mapped[str] = mapped_column(String, primary_key=True, default=lambda: new_id("run_"))
personal_domain_id: Mapped[str] = mapped_column(
ForeignKey("personal_domain.id", ondelete="cascade"), nullable=False, index=True
)
conversation_id: Mapped[str | None] = mapped_column(
ForeignKey("conversation.id", ondelete="cascade"), nullable=True, index=True
)
status: Mapped[str] = mapped_column(String, nullable=False, default="queued")
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, server_default=func.now()
)
completed_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
__table_args__ = (
CheckConstraint(
"status IN ('queued', 'running', 'waiting_approval', "
"'completed', 'failed', 'cancelled')",
name="status_values",
),
Index("ix_run_domain_status", "personal_domain_id", "status"),
)
class IdempotencyRecord(Base):
"""幂等键记录:按 认证主体+路由+键 隔离,保存请求哈希与结果引用(契约第 6 节)。"""
__tablename__ = "idempotency_record"
key: Mapped[str] = mapped_column(String, primary_key=True)
owner_domain_id: Mapped[str] = mapped_column(
ForeignKey("personal_domain.id", ondelete="cascade"), nullable=False
)
route: Mapped[str] = mapped_column(String, nullable=False)
request_hash: Mapped[str] = mapped_column(String, nullable=False)
response_status: Mapped[int] = mapped_column(nullable=False)
resource_ids: Mapped[dict[str, Any]] = mapped_column(JSONB, nullable=False, default=dict)
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), nullable=False, server_default=func.now()
)
__table_args__ = (
Index("uq_idempotency_owner_route_key", "owner_domain_id", "route", "key", unique=True),
)