q792602257
93c1a83406
新增 SiteInteractor.list_recent_orders（分页拉 order.my.rakuten.co.jp 订单列表， 按商品 URL 反查）+ GatewayClient.get_task，替换掉恒返回 UNKNOWN 的桩。 NOT_ORDERED 分支目前只有逻辑验证、没有真实多单数据支撑，刻意仍路由到 needs_human，不自动重新下单。全程只读查询，未触发任何真实付款操作。
549 lines
22 KiB
Python
549 lines
22 KiB
Python
"""worker 主循环与每任务执行流
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主循环（规格 §6）：
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while running:
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task = await gateway.lease(worker_id, wait=30)
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if task is None:
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continue
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if local_db.has_finished(task.task_id): # 本地幂等闸门
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await gateway.report(...); continue
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if task.lease_count > 1: # 恢复领取
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verdict = await verify_on_site(task)
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if verdict.already_ordered: await report(...); continue
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if verdict.unknown: await report(needs_human); continue
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async with renew_lease_every(60):
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await execute(task)
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每个动作的顺序固定为：动作 → 落证据 → 写本地 SQLite → 回报 gateway。
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顺序不能颠倒——先落证据再回报，保证服务器上看到的状态一定有本地证据可查。
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"""
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from __future__ import annotations
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import asyncio
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import contextlib
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import logging
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from typing import TYPE_CHECKING
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from app.shared.errors import AppError, CheckoutBlockedError, OrderGuardError
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from app.shared.task_state import OrderState, TaskStatus
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from app.trading.worker import verify
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from app.trading.worker.client import GatewayClient
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from app.trading.worker.evidence import EvidenceStore
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from app.trading.worker.local_db import LocalDB
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from app.trading.worker.models import LeaseTask
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from app.trading.worker.site_interact import SiteInteractor
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if TYPE_CHECKING:
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from app.shared.config import Settings
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logger = logging.getLogger(__name__)
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def _coerce_state(value: str | None) -> OrderState:
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"""把网关返回的 state 字符串安全地包成 OrderState；None 或非法值回落到 CREATED"""
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if not value:
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return OrderState.CREATED
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try:
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return OrderState(value)
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except ValueError:
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logger.warning("未知的 order state 字符串，回落到 CREATED：%s", value)
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return OrderState.CREATED
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class WorkerRunner:
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"""worker 主循环与执行流
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持有 gateway 客户端、本地 DB、证据存储。`run()` 是常驻 asyncio 任务，
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`handle()` 处理单个任务，`execute()` 是站点交互的实际调度（当前多数步骤未实现）。
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"""
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def __init__(
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self,
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*,
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settings: "Settings",
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gateway_client: GatewayClient,
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local_db: LocalDB,
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evidence: EvidenceStore,
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site: SiteInteractor,
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):
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self._settings = settings
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self._gateway = gateway_client
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self._db = local_db
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self._evidence = evidence
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self._site = site
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self._running = False
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# 付款后监控后台任务：task_id → asyncio.Task。与主循环解耦（不阻塞领下一单），
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# 详见 _spawn_monitor / _monitor_order。用 set 而非 list 是因为只需要成员管理，
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# 不需要顺序。
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self._monitor_tasks: set[asyncio.Task] = set()
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def stop(self) -> None:
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self._running = False
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async def cancel_monitors(self) -> None:
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"""服务关闭时调用：取消所有还在跑的付款后监控后台任务并等它们收尾
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必须在 SiteInteractor.close() 之前调用——监控任务还在用同一个
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Playwright context，先关 context 再取消会导致监控任务在 await 到一半时
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踩上已关闭的资源，报一堆无意义的异常。
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"""
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tasks = list(self._monitor_tasks)
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for t in tasks:
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t.cancel()
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for t in tasks:
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with contextlib.suppress(asyncio.CancelledError):
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await t
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@property
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def worker_id(self) -> str:
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return self._settings.worker_id_effective
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# ---- 主循环 ----
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async def run(self) -> None:
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"""常驻循环：长轮询领任务，按 §6 调度"""
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self._running = True
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logger.info("worker 启动：worker_id=%s", self.worker_id)
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while self._running:
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try:
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task = await self._gateway.lease(self.worker_id, wait=30)
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except AppError as exc:
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logger.warning("lease 失败：%s (err=%s)", exc.message, exc.err_code)
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await asyncio.sleep(5)
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continue
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except Exception: # noqa: BLE001
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logger.exception("lease 异常")
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await asyncio.sleep(5)
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continue
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if task is None:
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continue
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try:
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await self.handle(task)
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except Exception: # noqa: BLE001
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# 任何未预期的异常都不应让 worker 退出
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logger.exception("handle 任务异常：task_id=%s", task.task_id)
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# ---- 单任务调度 ----
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async def handle(self, task: LeaseTask) -> None:
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"""单任务调度入口：本地幂等闸门 → 恢复核对 → 执行"""
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# 本地幂等闸门：之前已完成过的任务不再执行
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if await self._db.has_finished(task.task_id):
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final_state = await self._db.final_state(task.task_id)
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logger.info(
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"本地已完成，补报终态：task_id=%s state=%s", task.task_id, final_state
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)
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await self._report_safe(
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task,
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state=_coerce_state(final_state),
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detail="本地已完成，补报避免重复执行",
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terminal=True,
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)
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return
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# 恢复领取：lease_count > 1 表示 stale → reclaim，必须先核对站点订单
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if task.lease_count > 1:
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await self._handle_recovery(task)
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return
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# 常规执行
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await self._execute_with_renewal(task)
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async def _handle_recovery(self, task: LeaseTask) -> None:
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"""lease_count > 1 的恢复路径：先核对，不直接执行"""
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logger.warning(
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"恢复领取（lease_count=%s），先核对站点订单：task_id=%s",
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task.lease_count,
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task.task_id,
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)
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verdict = await verify.verify_on_site(task, gateway=self._gateway, site=self._site)
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if verdict.verdict == verify.VerifyVerdict.ALREADY_ORDERED:
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await self._report_safe(
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task,
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state=OrderState.ORDERED,
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site_order_id=verdict.site_order_id,
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detail=f"核对结论：已下单（{verdict.detail}）",
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terminal=True,
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terminal_status=TaskStatus.SUCCEEDED,
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)
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await self._db.ensure_started(task.task_id, task.site, task.intent)
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await self._db.mark_finished(task.task_id, OrderState.ORDERED.value)
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return
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# NOT_ORDERED 也走 needs_human（2026-08-13 verify_on_site 已实现，会真的
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# 返回这个值，但刻意仍不自动重新执行）：核对逻辑目前只有「账号 1 笔订单」
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# 的真实数据支撑 ALREADY_ORDERED 分支，NOT_ORDERED 分支只验证过逻辑本身，
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# 没有被真实多单场景跑过——在这条判断被更多真实数据验证之前，即使确认
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# 未下单也交人工决定是否重新提交，不自动触发新的下单动作。这是刻意的
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# 保守选择，不是遗漏；要不要放开需要显式决定，不在这里静默改。
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await self._report_safe(
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task,
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state=_coerce_state(task.known_state),
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detail=f"恢复核对结论（{verdict.verdict.value}）：{verdict.detail}",
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terminal=True,
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terminal_status=TaskStatus.NEEDS_HUMAN,
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)
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# ---- 常规执行 ----
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async def _execute_with_renewal(self, task: LeaseTask) -> None:
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"""在租约自动续期的上下文里执行任务"""
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async with self._renew_lease_every(task, interval=60):
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try:
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await self.execute(task)
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except NotImplementedError as exc:
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# 站点交互未实现（规格 §10）：上报 needs_human，不视为 worker 失败
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logger.warning(
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"站点交互未实现，转 needs_human：task_id=%s what=%s",
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task.task_id,
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exc,
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)
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await self._report_safe(
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task,
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state=_coerce_state(task.known_state),
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detail=f"站点交互未实现：{exc}",
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terminal=True,
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terminal_status=TaskStatus.NEEDS_HUMAN,
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)
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except OrderGuardError as exc:
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# 金额守卫等闸门拦截：上报 needs_human，站点侧无提交动作
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logger.warning(
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"下单闸门拦截，转 needs_human：task_id=%s msg=%s",
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task.task_id,
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exc.message,
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)
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await self._report_safe(
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task,
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state=_coerce_state(task.known_state),
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detail=exc.message,
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terminal=True,
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terminal_status=TaskStatus.NEEDS_HUMAN,
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)
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except CheckoutBlockedError as exc:
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# 站点风控拦截（session upgrade / 3DS 等）：转 needs_human 交人工接管，
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# 不当普通失败重试（规格 §10.1）
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logger.warning(
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"结算被站点风控拦截，转 needs_human：task_id=%s msg=%s",
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task.task_id,
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exc.message,
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)
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await self._report_safe(
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task,
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state=_coerce_state(task.known_state),
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detail=exc.message,
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terminal=True,
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terminal_status=TaskStatus.NEEDS_HUMAN,
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)
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except AppError as exc:
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logger.warning(
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"执行失败：task_id=%s code=%s msg=%s",
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task.task_id,
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exc.err_code,
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exc.message,
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)
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await self._report_safe(
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task,
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state=_coerce_state(task.known_state),
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detail=exc.message,
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terminal=True,
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terminal_status=TaskStatus.FAILED,
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)
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async def execute(self, task: LeaseTask) -> None:
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"""站点交互的实际调度：加购 → 校验 → 确认页 → 金额守卫 → 提交 → 付款
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每一步的顺序：动作 → 落证据 → 写本地 SQLite → 回报 gateway。
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站点交互当前未实现（site_interact 抛 NotImplementedError），第一步就会
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转到 _execute_with_renewal 的 except 分支上报 needs_human。
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"""
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await self._db.ensure_started(task.task_id, task.site, task.intent)
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# 交易服务只覆盖乐天市场。其他站点直接转人工
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if task.site != "rakuten":
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raise NotImplementedError(f"site={task.site} 暂不在交易服务范围内（仅 rakuten）")
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# 步骤 1：加购
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await self._run_step(
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task, step_no=1, step_name="cart-add",
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action=lambda: self._site.add_to_cart(task),
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state=OrderState.IN_CART,
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detail="已加入购物车",
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)
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# 步骤 2：校验购物车
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await self._run_step(
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task, step_no=2, step_name="cart-check",
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action=lambda: self._site.verify_cart(task),
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state=OrderState.IN_CART,
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detail="购物车已校验",
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)
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# 步骤 3：进入下单确认页 + 金额守卫
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checkout_html = await self._site.enter_checkout(task)
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summary = await self._site.parse_checkout(checkout_html)
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self._enforce_amount_guard(task, summary.payable_yen)
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await self._run_step(
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task, step_no=3, step_name="order-confirm",
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action=self._noop(),
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state=OrderState.CREATED,
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detail=f"下单确认页已解析：应付 {summary.payable_yen} 円",
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html=checkout_html,
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evidence_meta={
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"payable_yen": summary.payable_yen,
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"site_order_id": summary.site_order_id,
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"pay_deadline": summary.pay_deadline,
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},
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)
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# 步骤 4：提交下单
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site_order_id = await self._site.submit_order(task)
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await self._run_step(
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task, step_no=4, step_name="order-submit",
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action=self._noop(),
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state=OrderState.ORDERED,
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site_order_id=site_order_id,
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detail=f"已提交下单，站点订单号 {site_order_id}",
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)
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# 步骤 5：付款
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await self._run_step(
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task, step_no=5, step_name="payment",
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action=lambda: self._site.pay(task, site_order_id),
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state=OrderState.AWAITING_PAYMENT,
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site_order_id=site_order_id,
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payable_yen=summary.payable_yen,
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pay_deadline=summary.pay_deadline,
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detail="已进入付款流程",
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)
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await self._report_safe(
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task,
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state=OrderState.PAID,
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site_order_id=site_order_id,
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payable_yen=summary.payable_yen,
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pay_deadline=summary.pay_deadline,
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detail="付款完成",
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terminal=True,
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terminal_status=TaskStatus.SUCCEEDED,
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)
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await self._db.mark_finished(task.task_id, OrderState.PAID.value)
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# 步骤 6：付款后监控——后台常驻轮询，不阻塞主循环领下一单（规格 §6）
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self._spawn_monitor(task, site_order_id)
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def _spawn_monitor(self, task: LeaseTask, site_order_id: str) -> None:
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"""把 _monitor_order 起成独立的后台任务，登记到 _monitor_tasks 便于关服时收尾"""
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monitor_task = asyncio.create_task(
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self._monitor_order(task, site_order_id), name=f"monitor-{task.task_id}"
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)
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self._monitor_tasks.add(monitor_task)
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monitor_task.add_done_callback(self._monitor_tasks.discard)
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async def _monitor_order(self, task: LeaseTask, site_order_id: str) -> None:
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"""付款后台轮询：订单配送阶段变化时继续 report（规格 §6「付款后监控」）
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任务本身已经在 execute() 里上报过 succeeded 终态——这里的 report 都是
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`terminal=False` 的追加上报（规格 §4.5：任务已 terminal 的仍可上报，
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gateway 追加到 task_reports），监控本身的成败不影响已经完成的下单结果。
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轮询间隔/次数上限见 settings.order_monitor_poll_interval_seconds /
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order_monitor_max_checks；达到上限仍未看到「配達完了」不算失败，只是
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停止追踪（记一条 warning）。单次探测异常（登录态失效、页面打不开）只记
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日志、下一轮重试，不能把异常抛出去——这是后台任务，没有人等着 catch 它，
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未捕获异常会被 asyncio 直接吞掉且只在垃圾回收时打一条难查的警告。
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"""
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last_state: OrderState | None = None
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step_no = 6
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interval = self._settings.order_monitor_poll_interval_seconds
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max_checks = self._settings.order_monitor_max_checks
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for attempt in range(1, max_checks + 1):
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await asyncio.sleep(interval)
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try:
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snapshot = await self._site.check_order_status(site_order_id)
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except Exception:
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logger.warning(
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"订单监控探测失败（第 %s/%s 次），下一轮继续重试："
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"task_id=%s site_order_id=%s",
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attempt, max_checks, task.task_id, site_order_id,
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exc_info=True,
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)
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continue
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if not snapshot.found:
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logger.info(
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"订单监控：第 %s/%s 次仍未在详情页找到订单号，继续轮询：task_id=%s",
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attempt, max_checks, task.task_id,
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)
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continue
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if snapshot.order_state is None or snapshot.order_state == last_state:
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continue
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last_state = snapshot.order_state
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step_name = f"monitor-{snapshot.order_state.value}"
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detail = f"订单监控：进度「{snapshot.stage_label}」→ {snapshot.order_state.value}"
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evidence_ref = self._evidence.write_step(
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task.task_id, step_no, step_name,
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html=snapshot.html,
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meta={
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"step": step_name,
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"state": snapshot.order_state.value,
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"stage_label": snapshot.stage_label,
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},
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)
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await self._db.index_evidence(task.task_id, step_no, step_name, evidence_ref)
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await self._db.record_event(
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task.task_id, snapshot.order_state.value,
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detail=detail, evidence_ref=evidence_ref,
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)
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await self._report_safe(
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task,
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state=snapshot.order_state,
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detail=detail,
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site_order_id=site_order_id,
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)
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step_no += 1
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if snapshot.order_state == OrderState.DELIVERED:
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|
logger.info("订单监控：已送达，停止轮询：task_id=%s", task.task_id)
|
|
return
|
|
|
|
logger.warning(
|
|
"订单监控达到最大轮询次数 %s 仍未看到「配達完了」，停止追踪：task_id=%s",
|
|
max_checks, task.task_id,
|
|
)
|
|
|
|
def _enforce_amount_guard(self, task: LeaseTask, payable_yen: int) -> None:
|
|
"""金额守卫：实际应付超过 intent.max_total_yen 或 RAKUTEN_ORDER_MAX_TOTAL_YEN 时拦截"""
|
|
intent = task.intent or {}
|
|
limit = intent.get("max_total_yen")
|
|
if limit is None or limit <= 0:
|
|
limit = self._settings.order_max_total_yen
|
|
if limit > 0 and payable_yen > limit:
|
|
raise OrderGuardError(
|
|
f"实际应付 {payable_yen} 円超过上限 {limit} 円"
|
|
f"（task_id={task.task_id}）"
|
|
)
|
|
|
|
@staticmethod
|
|
def _noop() -> "callable":
|
|
async def _f() -> None:
|
|
return None
|
|
|
|
return _f
|
|
|
|
async def _run_step(
|
|
self,
|
|
task: LeaseTask,
|
|
*,
|
|
step_no: int,
|
|
step_name: str,
|
|
action: "callable",
|
|
state: OrderState,
|
|
detail: str,
|
|
site_order_id: str | None = None,
|
|
payable_yen: int | None = None,
|
|
pay_deadline: str | None = None,
|
|
evidence_meta: dict | None = None,
|
|
html: str | None = None,
|
|
) -> None:
|
|
"""单步执行：动作 → 落证据 → 写本地 → 回报 gateway
|
|
|
|
`action` 的返回值若是字符串，视为该步骤要落盘的页面 HTML（add_to_cart /
|
|
verify_cart 均已改为返回渲染后的页面）；显式传入的 `html` 优先级更高，
|
|
供 step3 等已经单独拿到页面 HTML 的调用点直接使用。
|
|
"""
|
|
result = await action()
|
|
if html is None and isinstance(result, str):
|
|
html = result
|
|
meta = {
|
|
"step": step_name,
|
|
"state": state.value,
|
|
**(evidence_meta or {}),
|
|
}
|
|
evidence_ref = self._evidence.write_step(
|
|
task.task_id, step_no, step_name, html=html, meta=meta
|
|
)
|
|
await self._db.index_evidence(task.task_id, step_no, step_name, evidence_ref)
|
|
await self._db.record_event(
|
|
task.task_id, state.value, detail=detail, evidence_ref=evidence_ref
|
|
)
|
|
await self._gateway.report(
|
|
task.task_id,
|
|
self.worker_id,
|
|
state=state,
|
|
payable_yen=payable_yen,
|
|
pay_deadline=pay_deadline,
|
|
site_order_id=site_order_id,
|
|
evidence_ref=evidence_ref,
|
|
detail=detail,
|
|
)
|
|
|
|
async def _report_safe(
|
|
self,
|
|
task: LeaseTask,
|
|
*,
|
|
state: OrderState,
|
|
detail: str,
|
|
terminal: bool = False,
|
|
terminal_status: TaskStatus | None = None,
|
|
site_order_id: str | None = None,
|
|
payable_yen: int | None = None,
|
|
pay_deadline: str | None = None,
|
|
) -> None:
|
|
"""回报 gateway，失败只记日志不抛——主循环不能因为回报失败退出"""
|
|
try:
|
|
await self._gateway.report(
|
|
task.task_id,
|
|
self.worker_id,
|
|
state=state,
|
|
detail=detail,
|
|
terminal=terminal,
|
|
terminal_status=terminal_status,
|
|
site_order_id=site_order_id,
|
|
payable_yen=payable_yen,
|
|
pay_deadline=pay_deadline,
|
|
)
|
|
except Exception: # noqa: BLE001
|
|
logger.exception("回报 gateway 失败：task_id=%s state=%s", task.task_id, state)
|
|
|
|
@contextlib.asynccontextmanager
|
|
async def _renew_lease_every(self, task: LeaseTask, *, interval: int):
|
|
"""后台任务：每隔 interval 秒续租一次。退出时停掉"""
|
|
stop_event = asyncio.Event()
|
|
|
|
async def _loop() -> None:
|
|
while not stop_event.is_set():
|
|
try:
|
|
await asyncio.wait_for(stop_event.wait(), timeout=interval)
|
|
except asyncio.TimeoutError:
|
|
pass
|
|
if stop_event.is_set():
|
|
return
|
|
try:
|
|
await self._gateway.renew(task.task_id, self.worker_id)
|
|
except AppError as exc:
|
|
logger.warning(
|
|
"续租失败：task_id=%s code=%s msg=%s",
|
|
task.task_id,
|
|
exc.err_code,
|
|
exc.message,
|
|
)
|
|
return
|
|
except Exception: # noqa: BLE001
|
|
logger.exception("续租异常：task_id=%s", task.task_id)
|
|
return
|
|
|
|
renewal = asyncio.create_task(_loop(), name=f"renew-{task.task_id}")
|
|
try:
|
|
yield
|
|
finally:
|
|
stop_event.set()
|
|
with contextlib.suppress(asyncio.CancelledError):
|
|
await renewal
|