Files
AgentLab/backend/app/api/auth.py
T
ThearchyHelios 19329c873e 访问密钥与服务账号的后端(下一轮第 2 波 W2-d,细案 04 A1–A6、总方案 X8)
外部系统(门户、OA、BI)和个人脚本要用一个身份调接口,以前只能拿个人会话 cookie 去模拟。这次加访问密钥:

- 签发(A1):users.kind 区分人和服务账号(svc- 开头、没有口令、不能登录、角色固定使用者,管理员建);access_keys 只存
  sha256 和开头一截,明文 agl_ 加 32 字节随机串只显示一次;到期必填(最长 365 天、缺省 90 天)、可撤销、可轮换(新钥 + 旧钥
  24 小时后到期);个人访问密钥由管理员开关 auth.personal_keys 管,缺省关,关掉时已有的个人密钥一并不认
- 认人与门禁(A2):Principal 加 via / key_id / key_name / scopes / app_ids(全部带默认值);中间件认 Bearer agl_…,不看
  cookie、不查 CSRF、不看 X-Actor,认不出的各回 401 带各自的 code、绝不退回匿名;WebSocket 带密钥一律拒;关登录时 409
  keys_need_login。KEY_ROUTES(方法 + 路由模板 → scope)一张表,FastAPI(dependencies=[Depends(key_gate)]) 挂一次;不在表里的
  403 key_route_forbidden,缺 scope、限定应用、个人应用和试运行各有各的 403;每把密钥每分钟 120 次(429 + Retry-After)
- 封顶(A3):按密钥认出来的一律是使用者(拥有者现在的组),现有的使用者规则和遮罩全部自动生效,管理员的密钥也一样
- 写操作(A4):发起入口、刷新视图必须带 Idempotency-Key,api_receipts 按(拥有者, 键)去重,轮换后照样认得出;状态机从
  process/hooks.py 抽到 process/receipts.py,钩子和密钥共用(钩子现有测试原样通过),另按请求指纹拒掉同一个键办另一件事;
  有文件控件的入口 422;回复待办只给个人密钥、只限审批 / 补充输入 / 编辑稿件;run.origin、task.responded 记 via=key、哪把密钥
- 视图数据(A5):GET /api/apps/{id}/views/{view}/data(agentlab.viewdata/1),印章、清单哈希、口径卡指标原值和渲染文字,
  遮罩的 value 为 null(和页面同一个判断),按需视图只读缓存、不发起运行,只给正式运行
- 留痕(A6):建 / 撤销 / 轮换密钥、建 / 停用服务账号、开关个人密钥写审计;请求记录进程内缓冲、调度循环一拍里批量写、
  保留 90 天;last_used_at 至少隔 1 分钟写一次;钩子收件记录接口(manage),验签失败只在进程内按钩子计数
- 名录与派单:服务账号在名录里标出,岗位绑定、选人候选、提交审核、改派里排除,应用授权照收;服务账号发起的实例里派给发起人
  的待办交给任何人
- 接口说明(A7):GET /api/access-keys/reference 从 KEY_ROUTES 生成(要登录)

测试:签发与各种 401、门禁合约(遍历全站路由)、CSRF 与身份来源、封顶(管理员密钥取工件也是遮过的)、幂等(含轮换后、
半路杀进程)、留痕、待办种类、视图数据(真跑的遮罩会员库)、限流、钩子收件记录。
2026-10-16 13:48:09 +08:00

338 lines
16 KiB
Python

"""身份接口(BE-1):/me、登录、登出、OIDC、登录方式设置、引导第一个管理员、JWKS。设计文档 §2.7、§3.10。
登录方式三种:off(默认)/ local / oidc,环境变量 AGENTLAB_AUTH_MODE 优先于这里的设置(env_locked)。
- 从 off(或 oidc)切到 local:库里还没有能用口令登录的管理员时,必须在同一个请求里建出第一个管理员(bootstrap),
建好就以他的身份登录——不然切过去的那一刻谁都进不来;
- 切到 oidc:至少配一个管理员映射(管理员组或管理员用户名),并且身份提供方的配置读得到;
- 环境变量指定了 local、库里一个管理员都没有:POST /bootstrap 建第一个;
- 都进不去了:服务器上执行 python -m app.auth reset-admin。
"""
from __future__ import annotations
from typing import Any
from fastapi import APIRouter, Depends, Header, HTTPException, Request, Response
from fastapi.responses import JSONResponse, RedirectResponse
from pydantic import BaseModel, Field
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from app.api.coded import AUTH_REQUIRED
from app.api.deps import Principal, current_principal, decode_actor, ensure_role
from app.auth import (
MODES, SETTING_KEY, current_mode, env_mode, load_settings, remember_settings, stored_settings, user_can_chat,
)
from app.auth import oidc, sessions
from app.auth.audit import record
from app.auth.passwords import hash_password, password_problem, verify_password
from app.core import crypto
from app.db.base import get_session
from app.db.models import Setting, User
router = APIRouter(prefix="/api/auth", tags=["auth"])
_OIDC_FIELDS = ("issuer", "client_id", "client_secret", "scopes", "username_claim", "groups_claim",
"admin_groups", "admin_users", "builder_groups")
def principal_out(p: Principal) -> dict[str, Any]:
return {"mode": p.mode, "username": p.username, "display_name": p.display_name or p.username,
"role": p.role or "user", "groups": list(p.groups), "verified": p.verified,
"user_can_chat": user_can_chat()}
async def principal_full(session: AsyncSession, p: Principal) -> dict[str, Any]:
"""认人接口、登录交回的那一份:principal_out 再加上管理员开没开「使用者可以建个人应用」(同 user_can_chat,使用者
读不到设置,新建应用的入口、个人蓝图页按它给)。"""
from app.blueprints.personal import enabled
return {**principal_out(p), "user_personal_apps": await enabled(session)}
@router.get("/me")
async def me(x_actor: str | None = Header(default=None), session: AsyncSession = Depends(get_session)) -> Any:
"""当前是谁。关登录:mode=off、role=admin、username 是自报的署名。开登录没登录:401,带 mode(登录页据此显示
账号密码还是单点登录)和 can_bootstrap:账号密码登录、库里还没有能登录的管理员时为真(环境变量直接指定了 local
的新部署),登录页据此给「建第一个管理员」——条件和 POST /bootstrap 同一个,不多说别的。"""
principal = current_principal()
if principal.mode == "off":
actor = decode_actor(x_actor)
return await principal_full(session, Principal(username=actor, display_name=actor, role="admin", mode="off"))
if not principal.username:
can_bootstrap = principal.mode == "local" and not await _local_admin_exists(session)
return JSONResponse(status_code=401, content={"detail": "请先登录", "code": AUTH_REQUIRED,
"mode": principal.mode, "can_bootstrap": can_bootstrap})
if principal.via == "key":
# 用访问密钥自省(next-round 04 A4 的 me):另给这把密钥的名字、开头、scope、限定的应用、到期时间
from app.auth.keys import introspect
return {**await principal_full(session, principal), "key": await introspect(session, principal)}
return await principal_full(session, principal)
def _client_ip(request: Request) -> str:
return request.client.host if request.client else ""
def _login_response(request: Request, response: Response, token: str) -> None:
response.set_cookie(sessions.COOKIE, token, **sessions.cookie_kwargs(sessions.is_secure(request.url.scheme)))
class LoginIn(BaseModel):
username: str = Field(min_length=1, max_length=100)
password: str = Field(min_length=1, max_length=200)
@router.post("/login")
async def login(payload: LoginIn, request: Request, response: Response,
session: AsyncSession = Depends(get_session)) -> dict[str, Any]:
"""账号密码登录。单点登录模式下也认有口令的本地账号(reset-admin 建的找回账号)。"""
mode = current_mode()
if mode == "off":
raise HTTPException(409, "未开启登录,无需登录")
keys = (f"u:{payload.username.strip().lower()}", f"ip:{_client_ip(request)}")
if wait := sessions.wait_seconds(*keys):
raise HTTPException(429, f"登录失败次数过多,请 {wait} 秒后再试")
user = (await session.execute(select(User).where(User.username == payload.username.strip()))).scalar_one_or_none()
if user is None or user.disabled or not verify_password(payload.password, user.password_hash):
sessions.failed(*keys)
raise HTTPException(401, "用户名或密码不正确")
sessions.succeeded(*keys)
token = await sessions.create_session(session, user, ip=_client_ip(request),
user_agent=request.headers.get("user-agent"))
await session.commit()
_login_response(request, response, token)
return await principal_full(session, await sessions.principal_of(session, user, mode))
@router.post("/logout", status_code=204)
async def logout(request: Request, session: AsyncSession = Depends(get_session)) -> Response:
await sessions.revoke(session, request.cookies.get(sessions.COOKIE))
await session.commit()
out = Response(status_code=204)
out.delete_cookie(sessions.COOKIE, path="/")
return out
# ---------------------------------------------------------------- OIDC
def _redirect_uri(request: Request) -> str:
"""回调地址:对外访问地址(环境变量优先,其次设置,core/public_url.py),都没有按请求自己的地址拼。"""
from app.core.public_url import public_base_url
base = public_base_url() or str(request.base_url).rstrip("/")
return f"{base}/api/auth/oidc/callback"
def _oidc_config() -> dict[str, Any]:
config = dict(stored_settings().get("oidc") or {})
if not config.get("issuer") or not config.get("client_id"):
raise HTTPException(409, "单点登录尚未配置,请联系管理员")
return config
@router.get("/oidc/start")
async def oidc_start(request: Request, next: str | None = None) -> Response: # noqa: A002 - 查询参数就叫 next
if current_mode() != "oidc":
raise HTTPException(409, "未开启单点登录")
try:
url, cookie = await oidc.start(_oidc_config(), _redirect_uri(request), next)
except oidc.OidcError as e:
raise HTTPException(502, str(e)) from e
out = RedirectResponse(url, status_code=302)
out.set_cookie(oidc.STATE_COOKIE, cookie, max_age=oidc.STATE_TTL_S, httponly=True, samesite="lax",
secure=sessions.is_secure(request.url.scheme), path=oidc.STATE_PATH)
return out
@router.get("/oidc/callback")
async def oidc_callback(request: Request, code: str | None = None, state: str | None = None,
error: str | None = None, session: AsyncSession = Depends(get_session)) -> Response:
"""身份提供方跳回来。state cookie 当场作废:同一次授权回放第二次时 cookie 已经没了。出错跳回登录页并带上原因。"""
from urllib.parse import quote
cookie = request.cookies.get(oidc.STATE_COOKIE)
def back(target: str) -> RedirectResponse:
out = RedirectResponse(target, status_code=302)
out.delete_cookie(oidc.STATE_COOKIE, path=oidc.STATE_PATH)
return out
try:
if current_mode() != "oidc":
raise oidc.OidcError("未开启单点登录")
if error:
raise oidc.OidcError(f"身份提供方未完成登录:{error}")
data = oidc.read_state(cookie, state)
if not code:
raise oidc.OidcError("身份提供方没有给出授权码")
config = _oidc_config()
claims = await oidc.exchange(config, code, _redirect_uri(request), data["verifier"], data["nonce"])
user = await oidc.upsert_user(session, claims, config)
token = await sessions.create_session(session, user, ip=_client_ip(request),
user_agent=request.headers.get("user-agent"))
await session.commit()
except (oidc.OidcError, HTTPException) as e:
await session.rollback()
reason = e.detail if isinstance(e, HTTPException) else str(e)
return back(f"/login?error={quote(str(reason))}")
out = back(oidc.safe_next(data.get("next")))
_login_response(request, out, token)
return out
@router.get("/jwks")
async def jwks() -> dict[str, Any]:
"""service_on_behalf 身份断言的公钥(EdDSA)。外部系统据此核验 X-AgentLab-Assertion。"""
from app.auth.signing import jwks as keys
return keys()
# ---------------------------------------------------------------- 设置与引导
def _settings_out(value: dict[str, Any]) -> dict[str, Any]:
config = {k: v for k, v in (value.get("oidc") or {}).items() if k in _OIDC_FIELDS}
if config.get("client_secret"):
config["client_secret"] = crypto.mask(config["client_secret"])
return {"mode": current_mode(), "env_locked": env_mode() is not None, "oidc": config,
"user_can_chat": bool(value.get("user_can_chat"))}
def _require_admin() -> None:
"""改登录设置:关登录时谁都能改(所有人等同管理员);开了登录只给管理员。"""
if current_principal().mode != "off":
ensure_role("admin")
@router.get("/settings")
async def get_settings() -> dict[str, Any]:
_require_admin()
return _settings_out(await load_settings())
class BootstrapIn(BaseModel):
username: str = Field(min_length=1, max_length=100, pattern=r"^[^\s/]+$")
password: str = Field(min_length=1, max_length=200)
display_name: str | None = Field(default=None, max_length=100)
class SettingsIn(BaseModel):
mode: str | None = None
oidc: dict[str, Any] | None = None
user_can_chat: bool | None = None
bootstrap: BootstrapIn | None = None
async def _local_admin_exists(session: AsyncSession) -> bool:
return (await session.execute(select(User.id).where(
User.role == "admin", User.disabled.is_(False), User.password_hash.is_not(None)).limit(1))).first() is not None
async def _create_admin(session: AsyncSession, payload: BootstrapIn) -> User:
if problem := password_problem(payload.password):
raise HTTPException(422, problem)
if (await session.execute(select(User.id).where(User.username == payload.username))).first():
raise HTTPException(409, f"用户名「{payload.username}」已存在,请换一个,或用它的密码登录")
user = User(username=payload.username, display_name=payload.display_name or payload.username, role="admin",
password_hash=hash_password(payload.password), created_by=current_principal().username)
session.add(user)
await session.flush()
await record(session, "user.create", "user", user.id, data={"username": user.username, "role": "admin",
"bootstrap": True})
return user
def _merge_oidc(given: dict[str, Any] | None, before: dict[str, Any]) -> dict[str, Any]:
merged = dict(before)
for key, value in (given or {}).items():
if key not in _OIDC_FIELDS:
continue
if key == "client_secret":
# 提交掩码值表示保持原值
if value and before.get(key) and value == crypto.mask(before[key]):
continue
value = crypto.encrypt(str(value)) if value else None
elif key in ("admin_groups", "admin_users", "builder_groups"):
value = [str(v).strip() for v in (value or []) if str(v).strip()]
elif isinstance(value, str):
value = value.strip()
merged[key] = value
return merged
@router.put("/settings")
async def put_settings(payload: SettingsIn, request: Request, response: Response,
session: AsyncSession = Depends(get_session)) -> dict[str, Any]:
_require_admin()
before = await load_settings(force=True)
value = dict(before)
target = payload.mode or before.get("mode") or "off"
if target not in MODES:
raise HTTPException(422, "登录方式只能是未开启、账号密码登录、单点登录之一")
if payload.mode and env_mode() is not None and payload.mode != env_mode():
raise HTTPException(409, "登录方式由服务端的环境变量指定,不能在这里修改")
if payload.oidc is not None:
value["oidc"] = _merge_oidc(payload.oidc, dict(before.get("oidc") or {}))
if payload.user_can_chat is not None:
value["user_can_chat"] = payload.user_can_chat
value["mode"] = target
created: User | None = None
effective = env_mode() or target
if effective == "local" and current_mode() != "local":
if payload.bootstrap is not None:
created = await _create_admin(session, payload.bootstrap)
elif not await _local_admin_exists(session):
raise HTTPException(422, "开启账号密码登录前,需要同时创建第一个管理员账号")
if effective == "oidc":
config = value.get("oidc") or {}
if not config.get("issuer") or not config.get("client_id"):
raise HTTPException(422, "单点登录需要填写身份提供方地址和客户端标识")
if not (config.get("admin_groups") or config.get("admin_users")):
raise HTTPException(422, "单点登录至少需要配置一个管理员映射(管理员组或管理员用户名),否则无人能管理系统")
if current_mode() != "oidc" or payload.oidc is not None:
try:
await oidc.discover(config["issuer"])
except oidc.OidcError as e:
raise HTTPException(422, str(e)) from e
row = await session.get(Setting, SETTING_KEY)
if row is None:
session.add(Setting(key=SETTING_KEY, value=value))
else:
row.value = value
changed = {k: value.get(k) for k in ("mode", "user_can_chat") if value.get(k) != before.get(k)}
if payload.oidc is not None:
changed["oidc"] = {k: v for k, v in (value.get("oidc") or {}).items() if k != "client_secret"}
await record(session, "auth.settings", "auth", SETTING_KEY, data=changed)
token = None
if created is not None:
token = await sessions.create_session(session, created, ip=_client_ip(request),
user_agent=request.headers.get("user-agent"))
await session.commit()
remember_settings(value)
out = _settings_out(value)
if token is not None and created is not None:
_login_response(request, response, token)
out["principal"] = await principal_full(session, await sessions.principal_of(session, created, current_mode()))
return out
@router.post("/bootstrap")
async def bootstrap(payload: BootstrapIn, request: Request, response: Response,
session: AsyncSession = Depends(get_session)) -> dict[str, Any]:
"""建第一个管理员并登录。只在账号密码登录模式下、库里还没有能登录的管理员时可用(环境变量直接指定了 local 的新部署)。"""
if current_mode() != "local":
raise HTTPException(409, "只有在账号密码登录模式下才能创建第一个管理员")
if await _local_admin_exists(session):
raise HTTPException(409, "已经有管理员了,请用管理员账号登录")
user = await _create_admin(session, payload)
token = await sessions.create_session(session, user, ip=_client_ip(request),
user_agent=request.headers.get("user-agent"))
await session.commit()
_login_response(request, response, token)
return await principal_full(session, await sessions.principal_of(session, user, "local"))