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DadaoTask/backend/alembic/versions/0001_init.py
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docs(m0): 用实测结果重写 M0 清单 + 补 PR 模板
- 0.1–0.9 全部标为完成,但不是"代码写完"就算完成:
  33 条测试全绿、ruff/format 通过、真机 uvicorn 冒烟(/health /version 登录 建工作区 列表 /auth/me)通过
  之后才敢打勾;没跑过的(downgrade、mypy、CI 在 Gitea 实跑、Web/Android 联调)保持未勾并写明原因。
- 记录 5 处"计划与实际不符"的偏差及理由:
  JWT 30min/14d、refresh 无状态不可撤销、权限用 ROLE_RANK 而非 PERMISSIONS 字典、
  app_user 故意不加 RLS(登录发生在租户绑定之前)、minio 与 pgvector 推迟到 M3。
- 新增「环境现状与阻塞」一节:Docker 起不来用便携 PG、外网 TLS 被拦走 HTTP 镜像、
  pip 必须 --no-cache-dir(否则写缓存卡死)、pg_ctl restricted token 报错、fnsvr-01 只有 8418/3306。
- 验收用例表加"现状"列,区分已验证 / 部分 / 未做。

顺带修:
- alembic downgrade 之前直接失败:workspace 的 RLS 策略引用了 member,
  不先 DROP POLICY 就 drop table,报 "cannot drop table member because other objects depend on it"。
  现已按策略先删后删表,downgrade base → upgrade head 全通。
- npm 依赖必须 --ignore-scripts 才能装(沙箱禁止 lifecycle 脚本派生进程),
  已写进 DEVELOPMENT.md;web 首次构建成功(tsc -b + vite,177KB/gzip 58KB)。

验收:pytest 33 passed / ruff 干净 / alembic 升降级往返通过 / web build 通过。
2026-10-28 03:28:06 +08:00

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"""M0 初始结构:workspace / app_user / member / invitation / audit_log + 行级安全。
注意:RLS 策略是**安全边界**,不是优化项。改这个文件请同时改
`tests/test_tenant_isolation.py`,并在 PR 里说明为什么。
"""
from __future__ import annotations
from collections.abc import Sequence
import sqlalchemy as sa
from alembic import op
from sqlalchemy.dialects import postgresql
revision: str = "0001"
down_revision: str | None = None
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None
APP_ROLE = "dadao_app"
# 说明:asyncpg 走"预备语句"执行,**一条 execute 里只能有一条 SQL**,
# 多条语句会报 `cannot insert multiple commands into a prepared statement`。
# 所以这里按语句拆成元组,逐条执行。
HELPER_STATEMENTS: tuple[str, ...] = (
"""
CREATE OR REPLACE FUNCTION app_ws_id() RETURNS uuid
LANGUAGE sql STABLE AS $$
SELECT nullif(current_setting('app.ws_id', true), '')::uuid
$$
""",
"""
CREATE OR REPLACE FUNCTION app_user_id() RETURNS uuid
LANGUAGE sql STABLE AS $$
SELECT nullif(current_setting('app.user_id', true), '')::uuid
$$
""",
)
POLICY_STATEMENTS: tuple[str, ...] = (
# ── workspace:本租户 OR 我是其成员(用于"我加入了哪些工作区")──
"ALTER TABLE workspace ENABLE ROW LEVEL SECURITY;",
"""
CREATE POLICY workspace_isolation ON workspace
USING (
id = app_ws_id()
OR id IN (SELECT m.workspace_id FROM member m WHERE m.user_id = app_user_id())
)
WITH CHECK (id = app_ws_id());
""",
# ── member:本租户成员 OR 我自己那条 ──
"ALTER TABLE member ENABLE ROW LEVEL SECURITY;",
"""
CREATE POLICY member_isolation ON member
USING (workspace_id = app_ws_id() OR user_id = app_user_id())
WITH CHECK (workspace_id = app_ws_id());
""",
# ── invitation ──
"ALTER TABLE invitation ENABLE ROW LEVEL SECURITY;",
"""
CREATE POLICY invitation_isolation ON invitation
USING (workspace_id = app_ws_id())
WITH CHECK (workspace_id = app_ws_id());
""",
# ── audit_log:只增不改,租户内可见 ──
"ALTER TABLE audit_log ENABLE ROW LEVEL SECURITY;",
"""
CREATE POLICY audit_log_isolation ON audit_log
USING (workspace_id = app_ws_id())
WITH CHECK (workspace_id = app_ws_id());
""",
# ── 授权:应用角色没有 DDL、没有 BYPASSRLS,只能读写到自己该看的数据 ──
f"GRANT USAGE ON SCHEMA public TO {APP_ROLE};",
(
"GRANT SELECT, INSERT, UPDATE, DELETE ON "
f"workspace, app_user, member, invitation, audit_log TO {APP_ROLE};"
),
(
"ALTER DEFAULT PRIVILEGES FOR ROLE dadao_owner IN SCHEMA public "
f"GRANT SELECT, INSERT, UPDATE, DELETE ON TABLES TO {APP_ROLE};"
),
)
def _exec_each(statements: tuple[str, ...]) -> None:
for statement in statements:
op.execute(statement)
def upgrade() -> None:
_exec_each(HELPER_STATEMENTS)
op.create_table(
"app_user",
sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
sa.Column("phone", sa.String(32), nullable=False, unique=True),
sa.Column("nickname", sa.String(64), nullable=False, server_default=""),
sa.Column("avatar_url", sa.String(512)),
sa.Column("status", sa.String(16), nullable=False, server_default="active"),
sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
sa.Column("version", sa.Integer, nullable=False, server_default="1"),
)
op.create_index("ix_app_user_phone", "app_user", ["phone"])
op.create_table(
"workspace",
sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
sa.Column("name", sa.String(64), nullable=False),
sa.Column("slug", sa.String(64), nullable=False, unique=True),
sa.Column("plan", sa.String(16), nullable=False, server_default="free"),
sa.Column(
"owner_id",
postgresql.UUID(as_uuid=True),
sa.ForeignKey("app_user.id", ondelete="RESTRICT"),
nullable=False,
),
sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
sa.Column("version", sa.Integer, nullable=False, server_default="1"),
sa.Column("deleted_at", sa.DateTime(timezone=True)),
)
op.create_index("ix_workspace_owner", "workspace", ["owner_id"])
op.create_table(
"member",
sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
sa.Column(
"workspace_id",
postgresql.UUID(as_uuid=True),
sa.ForeignKey("workspace.id", ondelete="CASCADE"),
nullable=False,
),
sa.Column(
"user_id",
postgresql.UUID(as_uuid=True),
sa.ForeignKey("app_user.id", ondelete="CASCADE"),
nullable=False,
),
sa.Column("role", sa.String(16), nullable=False, server_default="member"),
sa.Column("status", sa.String(16), nullable=False, server_default="active"),
sa.Column("joined_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
sa.Column("version", sa.Integer, nullable=False, server_default="1"),
sa.UniqueConstraint("workspace_id", "user_id", name="uq_member_ws_user"),
sa.CheckConstraint("role IN ('owner','admin','member','guest')", name="ck_member_role"),
sa.CheckConstraint("status IN ('active','removed')", name="ck_member_status"),
)
op.create_index("ix_member_user", "member", ["user_id"])
op.create_index("ix_member_created", "member", ["created_at", "id"])
op.create_table(
"invitation",
sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
sa.Column(
"workspace_id",
postgresql.UUID(as_uuid=True),
sa.ForeignKey("workspace.id", ondelete="CASCADE"),
nullable=False,
),
sa.Column("code", sa.String(32), nullable=False),
sa.Column("role", sa.String(16), nullable=False, server_default="member"),
sa.Column(
"invited_by",
postgresql.UUID(as_uuid=True),
sa.ForeignKey("app_user.id", ondelete="RESTRICT"),
nullable=False,
),
sa.Column("expires_at", sa.DateTime(timezone=True), nullable=False),
sa.Column("accepted_at", sa.DateTime(timezone=True)),
sa.Column(
"accepted_by",
postgresql.UUID(as_uuid=True),
sa.ForeignKey("app_user.id", ondelete="SET NULL"),
),
sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
sa.Column("version", sa.Integer, nullable=False, server_default="1"),
sa.UniqueConstraint("code", name="uq_invitation_code"),
)
op.create_index("ix_invitation_ws", "invitation", ["workspace_id"])
op.create_table(
"audit_log",
sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
sa.Column(
"workspace_id",
postgresql.UUID(as_uuid=True),
sa.ForeignKey("workspace.id", ondelete="SET NULL"),
),
sa.Column(
"actor_user_id",
postgresql.UUID(as_uuid=True),
sa.ForeignKey("app_user.id", ondelete="SET NULL"),
),
sa.Column("action", sa.String(64), nullable=False),
sa.Column("target_type", sa.String(32), nullable=False, server_default=""),
sa.Column("target_id", sa.String(64), nullable=False, server_default=""),
sa.Column("payload", postgresql.JSONB),
sa.Column("ip", sa.String(64), nullable=False, server_default=""),
sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
)
op.create_index("ix_audit_ws_created", "audit_log", ["workspace_id", "created_at"])
_exec_each(POLICY_STATEMENTS)
def downgrade() -> None:
op.execute(f"REVOKE ALL ON workspace, app_user, member, invitation, audit_log FROM {APP_ROLE};")
# 必须先删策略:workspace 的策略里引用了 member,直接 drop 表会报
# "cannot drop table member because other objects depend on it"。
for table, policy in (
("workspace", "workspace_isolation"),
("member", "member_isolation"),
("invitation", "invitation_isolation"),
("audit_log", "audit_log_isolation"),
):
op.execute(f"DROP POLICY IF EXISTS {policy} ON {table};")
op.drop_table("audit_log")
op.drop_table("invitation")
op.drop_table("member")
op.drop_table("workspace")
op.drop_table("app_user")
op.execute("DROP FUNCTION IF EXISTS app_ws_id();")
op.execute("DROP FUNCTION IF EXISTS app_user_id();")