后台权限管理支持「自定义」角色（后端） (#126)

admin_user 加 pages_override(可空 JSON)+ Alembic 迁移；role==custom 时可见页由逐页勾选决定，否则跟随角色。
create/update 收 pages_override(切回普通角色自动清空)，_validate_role 放行 custom 哨兵角色。
登录/me 下发有效页时优先用 override → 左侧导航按勾选即时生效。补 4 个用例，test_admin_roles 全绿。

配套前端 PR：shaguabijia-admin-web#admin-custom-perms。

---------

Co-authored-by: no_gen_mu <liujianhishen@gmail.com>
Reviewed-on: #126
Co-authored-by: liujiahui <liujiahui@wonderable.ai>
Co-committed-by: liujiahui <liujiahui@wonderable.ai>

alembic/versions/admin_user_pages_override.py

@@ -0,0 +1,35 @@
+"""admin_user 加 pages_override 列(「自定义」权限:按人存专属可见页 key 列表)
+
+权限管理页新增「自定义」角色:选它时该成员的可见页不跟随任何共享角色,而由逐页勾选决定,
+存这个人专属的一份页 key 列表。仅 role == "custom" 时有效;普通角色为 None(可见页跟随角色)。
+PG 用 JSONB,SQLite 退化为通用 JSON(同 admin_audit_log.detail / comparison_record.raw_payload)。
+
+Revision ID: admin_user_pages_override
+Revises: admin_user_plain_password
+Create Date: 2026-07-08 00:00:00.000000
+"""
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from sqlalchemy.dialects.postgresql import JSONB
+
+from alembic import op
+
+revision: str = "admin_user_pages_override"
+down_revision: str | Sequence[str] | None = "admin_user_plain_password"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+# 与 app/models/admin.py 的 _JSON 一致:PG JSONB / 其它 JSON
+_JSON = sa.JSON().with_variant(JSONB(), "postgresql")
+
+
+def upgrade() -> None:
+    with op.batch_alter_table("admin_user", schema=None) as batch_op:
+        batch_op.add_column(sa.Column("pages_override", _JSON, nullable=True))
+
+
+def downgrade() -> None:
+    with op.batch_alter_table("admin_user", schema=None) as batch_op:
+        batch_op.drop_column("pages_override")

app/admin/permissions.py

@@ -9,6 +9,9 @@ super_admin 为内建全权角色,恒可见全部页(effective_pages 特判)。
 from __future__ import annotations
 
 SUPER_ADMIN_ROLE = "super_admin"
+# 「自定义」哨兵角色:不是 admin_role 表里的行,而是标记「这个人的可见页由 pages_override 决定」。
+# admin_user.role == CUSTOM_ROLE 时,有效可见页取 admin_user.pages_override(见 auth._admin_out_with_pages)。
+CUSTOM_ROLE = "custom"
 
 # 分组镜像前端导航(app/(main)/layout.tsx 的 NAV_GROUPS);key = 路由一级
 PERMISSION_CATALOG: list[dict] = [

app/admin/repositories/admin_user.py

@@ -26,14 +26,17 @@ def create_admin(
     password: str,
     role: str = "operator",
     plain_password: str | None = None,
+    pages_override: list[str] | None = None,
 ) -> AdminUser:
     """建管理员。plain_password 非空则额外留存明文(后台 UI 建的账号传,供权限管理页复看);
-    脚本/起后台建账号不传(留 None → 前端不显示密码)。"""
+    脚本/起后台建账号不传(留 None → 前端不显示密码)。
+    pages_override:role=="custom" 时传专属可见页 key 列表;普通角色为 None。"""
     admin = AdminUser(
         username=username,
         password_hash=hash_password(password),
         role=role,
         plain_password=plain_password,
+        pages_override=pages_override,
     )
     db.add(admin)
     db.commit()

app/admin/routers/admins.py

@@ -5,7 +5,7 @@ from fastapi import APIRouter, Depends, HTTPException, Request
 
 from app.admin.audit import write_audit
 from app.admin.deps import AdminDb, CurrentAdmin, get_client_ip, require_role
-from app.admin.permissions import SUPER_ADMIN_ROLE
+from app.admin.permissions import CUSTOM_ROLE, SUPER_ADMIN_ROLE, sanitize_pages
 from app.admin.repositories import admin_role as role_repo
 from app.admin.repositories import admin_user as admin_repo
 from app.admin.schemas.admin import AdminCreateRequest, AdminUpdateRequest
@@ -26,14 +26,22 @@ def _active_super_count(db: AdminDb) -> int:
 
 
 def _validate_role(db: AdminDb, role: str) -> None:
-    """角色必须是 super_admin 或 admin_role 表里已存在的角色,否则 400。"""
-    if role == SUPER_ADMIN_ROLE:
+    """角色必须是 super_admin / custom(自定义) / admin_role 表里已存在的角色,否则 400。"""
+    if role in (SUPER_ADMIN_ROLE, CUSTOM_ROLE):
         return
     role_repo.ensure_builtin_roles(db)  # 空表(测试/全新库)兜底播种,再校验
     if role_repo.get_role(db, role) is None:
         raise HTTPException(status_code=400, detail=f"角色不存在: {role}")
 
 
+def _clean_override(role: str, pages_override: list[str] | None) -> list[str] | None:
+    """按最终角色算出该存的 pages_override:custom → 勾选集(过滤非法 key,可空列表);
+    非 custom → None(切回普通角色即清空自定义页)。"""
+    if role == CUSTOM_ROLE:
+        return sanitize_pages(pages_override)
+    return None
+
+
 @router.get("", response_model=list[AdminOut], summary="管理员列表(含明文密码,super_admin 专属)")
 def list_admins(db: AdminDb) -> list[AdminOut]:
     out: list[AdminOut] = []
@@ -51,13 +59,16 @@ def create_admin(
     if admin_repo.get_by_username(db, body.username) is not None:
         raise HTTPException(status_code=409, detail="用户名已存在")
     _validate_role(db, body.role)
+    override = _clean_override(body.role, body.pages_override)
     new = admin_repo.create_admin(
         db, username=body.username, password=body.password, role=body.role,
         plain_password=body.password,  # UI 建的账号留存明文,供权限管理页复看
+        pages_override=override,
     )
     write_audit(
         db, admin, action="admin.create", target_type="admin", target_id=new.id,
-        detail={"username": new.username, "role": new.role}, ip=get_client_ip(request), commit=True,
+        detail={"username": new.username, "role": new.role, "pages_override": override},
+        ip=get_client_ip(request), commit=True,
     )
     return AdminOut.model_validate(new)
 
@@ -89,7 +100,8 @@ def update_admin(
         _validate_role(db, body.role)
 
     changes: dict = {}
-    if body.role is not None and body.role != target.role:
+    role_changed = body.role is not None and body.role != target.role
+    if role_changed:
         changes["role"] = {"before": target.role, "after": body.role}
         target.role = body.role
     if body.status is not None and body.status != target.status:
@@ -99,6 +111,17 @@ def update_admin(
         changes["password"] = "reset"
         target.password_hash = hash_password(body.password)
         target.plain_password = body.password  # 同步留存明文,权限管理页复看保持一致
+
+    # 自定义可见页:按「最终角色」(target.role,已应用完角色变更)决定该存什么。
+    # - 切到/维持 custom 且传了 pages_override → 用勾选集;切到 custom 没传 → 清成空列表。
+    # - 切回普通角色 → 清空 override(_clean_override 返回 None)。
+    # - 角色没变、只传 pages_override(编辑现有 custom 用户的勾选)→ 也更新。
+    if role_changed or body.pages_override is not None:
+        new_override = _clean_override(target.role, body.pages_override)
+        if new_override != target.pages_override:
+            changes["pages_override"] = {"before": target.pages_override, "after": new_override}
+            target.pages_override = new_override
+
     if not changes:
         raise HTTPException(status_code=400, detail="无任何变更字段")
     db.commit()

app/admin/routers/auth.py

@@ -6,6 +6,7 @@ import logging
 from fastapi import APIRouter, Depends, HTTPException
 
 from app.admin.deps import AdminDb, CurrentAdmin
+from app.admin.permissions import CUSTOM_ROLE, sanitize_pages
 from app.admin.repositories import admin_role as role_repo
 from app.admin.repositories import admin_user as admin_repo
 from app.admin.schemas.auth import AdminLoginRequest, AdminLoginResponse, AdminOut
@@ -19,9 +20,13 @@ router = APIRouter(prefix="/admin/api/auth", tags=["admin-auth"])
 
 
 def _admin_out_with_pages(admin, db: AdminDb) -> AdminOut:  # noqa: ANN001
-    """AdminOut + 当前角色有效可见页(前端左侧导航按此过滤)。"""
+    """AdminOut + 有效可见页(前端左侧导航按此过滤)。
+    role=="custom" → 用这个人的 pages_override(按人自定义,过滤悬空 key);其余走角色解析。"""
     out = AdminOut.model_validate(admin)
-    out.pages = role_repo.effective_pages_of(db, admin.role)
+    if admin.role == CUSTOM_ROLE:
+        out.pages = sanitize_pages(admin.pages_override)
+    else:
+        out.pages = role_repo.effective_pages_of(db, admin.role)
     return out
 
 

app/admin/schemas/admin.py

@@ -13,14 +13,18 @@ class AdminCreateRequest(BaseModel):
     username: str = Field(..., min_length=3, max_length=64)
     password: str = Field(..., min_length=8, max_length=72)  # bcrypt ≤72 字节
     role: str = Field("operator", min_length=1, max_length=32)
+    # 仅当 role == "custom":这个人专属可见页 key 列表(逐页勾选结果)。其余角色不传/忽略。
+    pages_override: list[str] | None = None
 
 
 class AdminUpdateRequest(BaseModel):
-    """改角色 / 启用禁用 / 重置密码,字段都可选(只改传了的)。"""
+    """改角色 / 启用禁用 / 重置密码 / 自定义可见页,字段都可选(只改传了的)。"""
 
     role: str | None = Field(None, min_length=1, max_length=32)
     status: Literal["active", "disabled"] | None = None
     password: str | None = Field(None, min_length=8, max_length=72)
+    # 改成/更新「自定义」可见页;role 切回普通角色时后端会清空 override(见路由)。
+    pages_override: list[str] | None = None
 
 
 class AdminAuditLogOut(BaseModel):

app/admin/schemas/auth.py

@@ -21,8 +21,11 @@ class AdminOut(BaseModel):
     created_at: datetime
     last_login_at: datetime | None = None
     # 该管理员当前角色的有效可见页(= 左侧导航项 key);仅登录 / /me 填充,列表接口默认空。
-    # 前端据此过滤左侧导航(super_admin = 全部页)。见 app/admin/permissions.py。
+    # 前端据此过滤左侧导航(super_admin = 全部页;role=="custom" = pages_override)。见 permissions.py。
     pages: list[str] = []
+    # 「自定义」可见页原始勾选集(role=="custom" 时非空);列表接口下发,供权限管理页编辑回填勾选。
+    # 普通角色为 None。from_attributes 自动从 ORM 列取。
+    pages_override: list[str] | None = None
     # 明文登录密码:仅「管理员账号列表」(super_admin 专属路由)填充,供权限管理页编辑时复看;
     # 无留存(脚本建的超管 / 旧账号)为 None → 前端不显示。登录 / /me 不下发(保持 None)。
     password: str | None = None

app/models/admin.py

@@ -28,8 +28,11 @@ class AdminUser(Base):
     # 明文登录密码:仅「后台 UI 创建/重置」的管理员留存,供超管在权限管理页复看转交。
     # 脚本/起后台时建的超管账号不写(为 None → 前端「不显示密码」)。⚠️ 内部工具便利取舍,见 create/list。
     plain_password: Mapped[str | None] = mapped_column(String(128), nullable=True)
-    # super_admin(全权+管账号)/ finance(钱:提现+金币)/ operator(用户+反馈+大盘)
+    # super_admin(全权+管账号)/ finance(钱:提现+金币)/ operator(用户+反馈+大盘)/ custom(按人自定义)
     role: Mapped[str] = mapped_column(String(20), nullable=False, default="operator")
+    # 「自定义」权限:仅当 role == "custom" 时有效,存这个人专属的可见页 key 列表(不共享给他人)。
+    # 非 custom 用户为 None → 可见页跟随角色。登录/`/me` 下发有效页时,非空即优先用它(见 auth._admin_out_with_pages)。
+    pages_override: Mapped[list | None] = mapped_column(_JSON, nullable=True)
     # active / disabled
     status: Mapped[str] = mapped_column(String(20), nullable=False, default="active")
 

tests/test_admin_roles.py

@@ -150,3 +150,80 @@ def test_create_admin_rejects_unknown_role(admin_client, super_token) -> None:
         headers=_auth(super_token),
     )
     assert r.status_code == 400
+
+
+def _login_pages(username: str, password: str = "pass1234") -> list[str]:
+    """以某账号登录,取下发的有效可见页(左侧导航过滤依据)。"""
+    c = TestClient(admin_app)
+    return c.post(
+        "/admin/api/auth/login", json={"username": username, "password": password}
+    ).json()["admin"]["pages"]
+
+
+def test_custom_role_create_pages_take_effect(admin_client, super_token) -> None:
+    # 建「自定义」账号:role=custom + 勾选页(含一个非法 key,应被过滤)
+    r = admin_client.post(
+        "/admin/api/admins",
+        json={
+            "username": "cust_user", "password": "pass1234", "role": "custom",
+            "pages_override": ["dashboard", "withdraws", "xx-bad"],
+        },
+        headers=_auth(super_token),
+    )
+    assert r.status_code == 200, r.text
+    # 登录下发的 pages == 勾选集(非法 key 过滤),真正驱动左侧导航
+    assert set(_login_pages("cust_user")) == {"dashboard", "withdraws"}
+    # 账号列表回显原始勾选集(供编辑回填),同样已过滤
+    admins = {a["username"]: a for a in admin_client.get("/admin/api/admins", headers=_auth(super_token)).json()}
+    assert set(admins["cust_user"]["pages_override"]) == {"dashboard", "withdraws"}
+    assert admins["cust_user"]["role"] == "custom"
+
+
+def test_custom_role_update_and_switch_back_clears_override(admin_client, super_token) -> None:
+    admin_client.post(
+        "/admin/api/admins",
+        json={
+            "username": "cust_sw", "password": "pass1234", "role": "custom",
+            "pages_override": ["dashboard"],
+        },
+        headers=_auth(super_token),
+    )
+    aid = next(
+        a["id"] for a in admin_client.get("/admin/api/admins", headers=_auth(super_token)).json()
+        if a["username"] == "cust_sw"
+    )
+    # 只改勾选集(角色不变)→ 生效
+    u = admin_client.patch(
+        f"/admin/api/admins/{aid}", json={"pages_override": ["dashboard", "feedbacks"]},
+        headers=_auth(super_token),
+    )
+    assert u.status_code == 200, u.text
+    assert set(_login_pages("cust_sw")) == {"dashboard", "feedbacks"}
+    # 切回普通角色 operator → override 清空,pages 跟随角色(运营页集,且不含 admins)
+    u2 = admin_client.patch(
+        f"/admin/api/admins/{aid}", json={"role": "operator"}, headers=_auth(super_token)
+    )
+    assert u2.status_code == 200, u2.text
+    admins = {a["username"]: a for a in admin_client.get("/admin/api/admins", headers=_auth(super_token)).json()}
+    assert admins["cust_sw"]["pages_override"] is None
+    pages = set(_login_pages("cust_sw"))
+    assert "feedbacks" in pages and "admins" not in pages  # 运营口径,自定义页已不生效
+
+
+def test_switch_operator_to_custom_sets_override(admin_client, super_token) -> None:
+    admin_client.post(
+        "/admin/api/admins",
+        json={"username": "op2cust", "password": "pass1234", "role": "operator"},
+        headers=_auth(super_token),
+    )
+    aid = next(
+        a["id"] for a in admin_client.get("/admin/api/admins", headers=_auth(super_token)).json()
+        if a["username"] == "op2cust"
+    )
+    u = admin_client.patch(
+        f"/admin/api/admins/{aid}",
+        json={"role": "custom", "pages_override": ["config"]},
+        headers=_auth(super_token),
+    )
+    assert u.status_code == 200, u.text
+    assert set(_login_pages("op2cust")) == {"config"}