"""站点交互：加购 / 校验 / 清空 / 删除 / 进入下单确认页 / 金额守卫 / 提交 / 付款 / 监控 实测进度（详见 project://jp-rakuten/checkout-flow-probe-findings）： - add_to_cart、verify_cart 已实测可用（Playwright + storage_state 走 SP 通道） - clear_cart、remove_item 用 UI 点击 `button[aria-label="削除"]` 路径实现， 未做真账号实测；首次跑通后回填实测 selector 与 modal 行为到记忆节点 - enter_checkout 及之后**未实现**：Rakuten 对 checkout 这类敏感操作要求 session upgrade（重输密码），即使当前 SSO 已登录。这是自动 checkout 的硬墙， 比 3DS 还前置。本层留接口缝，未实测前调用直接抛「未实现」，不要写猜测的提交逻辑。 **httpx 不能用于带账号的写操作**：Rakuten 对账号操作有 TLS/HTTP2 指纹校验， 同一份 cookie Playwright 能用、httpx 不能。所以本模块全程使用 Playwright 的 BrowserContext + APIRequestContext（共享 cookie，绕过 CORS）。 **并发约束**：所有公开方法入口 acquire `self._lock`，保证 HTTP 路由与 worker 主循环不会同时操作同一个 Playwright context——同一账号必须串行 （per project://jp-rakuten/trading-split「全局并发度 1」）。 """ from __future__ import annotations import asyncio import json import logging import re from dataclasses import dataclass from typing import TYPE_CHECKING from app.shared.errors import ( CartOperationError, InvalidRequestError, NotLoggedInError, ) from app.shared.purchase_contract import ( INVENTORY_FLAG_DEFAULT, INVENTORY_FLAG_MULTIPLE, base_form_fields, basket_domain_of, inventory_flag_for, ) from app.trading.core import auth_site from app.trading.worker.models import LeaseTask if TYPE_CHECKING: from app.shared.config import Settings from app.trading.services.auth_session import AuthSession logger = logging.getLogger(__name__) # 普通购买事件标识、inventory_flag 映射、basketDomain 反转义、form_fields 基础构造 # 均在 app.shared.purchase_contract，与 scraping/parsers/item.py::_purchase_info 共用同一份契约 _BASKET_PATH = "/rms/mall/bss/cartadd/set" # 购物车页（SP）与 cart 数量 JSONP API（探针实测） _CART_PAGE = auth_site.RAKUTEN_CART_URL _CART_COUNT_API = "https://cart-api.step.rakuten.co.jp/rms/mall/cart/count/all/jsonp/" # 购物车页未登录标记（旧 marker；新 SPA 上不可靠，这里只作辅助判据） _LEGACY_LOGGED_OUT_MARKER = auth_site.RAKUTEN_LOGGED_OUT_MARKER # 删除按钮稳定 selector（探针回报：.probe/checkout/06-cart-with-items.html 4 处命中） # aria-label 是 a11y 属性，比 CSS modules hash class 稳定；Rakuten 不用 data-testid _DELETE_BUTTON_SELECTOR = 'button[aria-label="削除"]' # clear_cart 安全上限：防止 SPA 异常时死循环 _CLEAR_CART_MAX_ITER = 50 # 确认 modal 候选 selector：点击「削除」后站点可能弹「本当に削除しますか？」 _CONFIRM_BUTTON_SELECTORS = ('button:has-text("はい")', 'button:has-text("OK")') _NOT_IMPLEMENTED_MSG = ( "站点交互未实现：见 docs/order-gateway.md §10 与 " "project://jp-rakuten/checkout-flow-probe-findings。" "session upgrade 是 checkout 阶段的硬墙，未实测前不写猜测的提交逻辑。" ) @dataclass(slots=True) class CheckoutSummary: """下单确认页解析结果（待实测确认字段位置） payable_yen 用于金额守卫；其他字段在实测确认后补全。 """ payable_yen: int site_order_id: str | None = None pay_deadline: str | None = None class SiteInteractor: """Rakuten 站点交互器：持有 Playwright 浏览器 context，复用账号 cookie 生命周期： - start() 在 trading 服务 lifespan 启动时调用一次：启动 Playwright + 创建带 cookie 的 context - add_to_cart / verify_cart / cart_status / clear_cart / remove_item 在任务或 HTTP 请求里调用 - close() 在服务关闭时调用 浏览器 context 复用同一份登录态，所有任务串行（self._lock + worker 主循环本就串行）， 不需要为每个任务开新 context——开销大且 cookie 状态会乱。 调用方： - worker runner：传入 LeaseTask，调 add_to_cart(task) / verify_cart(task) - HTTP 路由 /api/cart/*：调 add_to_cart_payload(...) / cart_status() / clear_cart() / remove_item(item_id) """ # 每任务保留的临时状态：task_id → {"item_id": str, "shop_bid": str} # 用于 add_to_cart 把抓出来的 item_id / shop_bid 喂给 verify_cart _per_task_state: dict[str, dict[str, str]] # 所有公开方法共用一把锁：HTTP 接口与 worker 主循环都走它，串行化所有 Playwright 操作。 # 同一账号被并发操作 = 风控触发风险 + cart 状态错乱。 _lock: asyncio.Lock def __init__(self, *, auth_session: "AuthSession", settings: "Settings"): self._auth_session = auth_session self._settings = settings self._playwright = None self._browser = None self._context = None # playwright BrowserContext self._per_task_state = {} self._lock = asyncio.Lock() # 上次 build context 时读到的 storage_state 文件 mtime。 # 用于在任务间检测 AuthSession 重登后产生的新 storage_state，触发 context 重建。 self._state_mtime: float | None = None # ---- 生命周期 ---- async def start(self) -> None: """启动 Playwright 与带 cookie 的浏览器 context 登录态文件不存在时同样启动（context 没 cookie），后续 add_to_cart 会 在 require_logged_in 里报错。这样保持启动路径一致。 """ from playwright.async_api import async_playwright state_path = self._settings.auth_state_path / auth_site.profile("rakuten").state_filename storage_state = str(state_path) if state_path.exists() else None if storage_state is None: logger.warning( "登录态文件不存在：site_interactor 以无 cookie 状态启动，" "加购请求会被站点拒认" ) else: self._state_mtime = state_path.stat().st_mtime self._playwright = await async_playwright().start() self._browser = await self._playwright.chromium.launch( headless=True, channel=self._settings.browser_channel or None, args=["--no-first-run", "--disable-blink-features=AutomationControlled"], ) self._context = await self._browser.new_context( storage_state=storage_state, user_agent=auth_site.RAKUTEN_USER_AGENT, locale="ja-JP", timezone_id="Asia/Tokyo", viewport={"width": 390, "height": 844}, is_mobile=True, has_touch=True, ) logger.info("SiteInteractor 已就绪：storage_state=%s", storage_state or "(none)") async def _refresh_context_if_stale(self) -> None: """检查 storage_state 文件 mtime，变化则重建 context AuthSession.try_relogin 成功后会重写 storage_state 文件。本 context 启动时 用快照式 storage_state 创建，cookie 不会自动同步——必须关掉旧 context、 用新文件重建。在 add_to_cart / verify_cart 开头各调一次，开销可接受 （只在 mtime 变了才重建）。 """ state_path = self._settings.auth_state_path / auth_site.profile("rakuten").state_filename if not state_path.exists(): return mtime = state_path.stat().st_mtime if mtime == self._state_mtime: return logger.info( "storage_state 文件变化（mtime %s → %s），重建 context", self._state_mtime, mtime, ) if self._context is not None: try: await self._context.close() except Exception: logger.debug("关闭旧 context 失败", exc_info=True) self._context = await self._browser.new_context( storage_state=str(state_path), user_agent=auth_site.RAKUTEN_USER_AGENT, locale="ja-JP", timezone_id="Asia/Tokyo", viewport={"width": 390, "height": 844}, is_mobile=True, has_touch=True, ) self._state_mtime = mtime async def close(self) -> None: """关闭 context、browser、playwright，吞掉单个 close 异常""" for resource, name in ( (self._context, "context"), (self._browser, "browser"), (self._playwright, "playwright"), ): if resource is None: continue try: closer = resource.close() if name != "playwright" else resource.stop() await closer except Exception: logger.debug("关闭 %s 失败", name, exc_info=True) self._context = None self._browser = None self._playwright = None # ---- 已实现：add_to_cart / verify_cart / cart_status ---- async def add_to_cart(self, task: LeaseTask) -> None: """加购（worker 入口）：从 task.intent 取字段，调 _add_to_cart_with_fields 调用方需在 task.intent 提供： - item_url: 商品详情页 URL（必填） - quantity: 数量，默认 1 - variant_id: 多规格商品的 variant_id；不传则从 sku.variants[] 自动选第一个非售罄 - choice: 必填选项的取值列表；不传则每个必填选项用第一个候选值（站点不严格校验） Raises: InvalidRequestError: intent.item_url 缺失 NotLoggedInError: 登录态失效 CartOperationError: 商品页打不开、state 解析失败、商品不可购买、加购返回错误页 """ intent = task.intent or {} item_url = intent.get("item_url") if not item_url: raise InvalidRequestError("intent.item_url 必填") quantity = int(intent.get("quantity") or 1) if quantity <= 0: raise InvalidRequestError(f"intent.quantity 必须为正整数，收到 {quantity}") async with self._lock: result = await self._add_to_cart_with_fields( item_url=item_url, quantity=quantity, variant_id=intent.get("variant_id"), choice=intent.get("choice"), ) self._per_task_state[task.task_id] = { "item_id": result["item_id"], "shop_bid": result["shop_bid"], "basket_domain": result["basket_domain"], } async def add_to_cart_payload( self, *, item_url: str, quantity: int = 1, variant_id: str | None = None, choice: str | list[str] | None = None, ) -> dict: """加购（HTTP 入口）：返回加购结果与最新 cart count，不写 _per_task_state 与 add_to_cart(task) 共享 _add_to_cart_with_fields，差异仅在： - 入参形态（关键字 vs intent dict） - 返回值（dict vs None，结果记在 _per_task_state） - 不带 task_id（HTTP 调用方自己持有结果） """ if not item_url: raise InvalidRequestError("item_url 必填") if quantity <= 0: raise InvalidRequestError(f"quantity 必须为正整数，收到 {quantity}") async with self._lock: return await self._add_to_cart_with_fields( item_url=item_url, quantity=quantity, variant_id=variant_id, choice=choice, ) async def _add_to_cart_with_fields( self, *, item_url: str, quantity: int, variant_id: str | None, choice: str | list[str] | None, ) -> dict: """加购核心逻辑（不持锁，由调用方包裹 self._lock） 返回 dict：{item_id, shop_bid, basket_domain, cart_count} cart_count 在加购成功后顺带查一次 cart count API，方便 HTTP 调用方一次性返回。 """ await self._auth_session.require_logged_in("rakuten") await self._refresh_context_if_stale() intent_for_extract: dict = {} if variant_id is not None: intent_for_extract["variant_id"] = variant_id if choice is not None: intent_for_extract["choice"] = choice page = await self._context.new_page() try: try: await page.goto(item_url, wait_until="domcontentloaded", timeout=30_000) await page.wait_for_function( "() => window.__INITIAL_STATE__ && window.__INITIAL_STATE__.purchase", timeout=10_000, ) except Exception as exc: raise CartOperationError( f"打开商品页失败或反爬被触发：{type(exc).__name__}: {exc}" ) from exc html = await page.content() state = _parse_initial_state(html) if not state: raise CartOperationError("无法从商品页抽 __INITIAL_STATE__（可能 PC 模板或反爬）") fields = _extract_purchase_fields(state, intent_override=intent_for_extract) if fields["purchase_condition"] != "enabled": raise CartOperationError( f"商品不可购买：purchaseCondition={fields['purchase_condition']}" ) if not fields["basket_domain"]: raise CartOperationError("basketDomain 为空（商品可能下架）") # 多规格商品要求选了 variant_id if fields["inventory_flag"] == INVENTORY_FLAG_MULTIPLE and not fields["form_fields"].get("variant_id"): raise CartOperationError( "多规格商品未选 variant，且 sku.variants 全部售罄或为空" ) # 必填选项要求填了 choice if fields["has_required_options"] and not fields["form_fields"].get(fields["options_field"]): raise CartOperationError( "商品有必填选项但未提供 choice，且选项无候选值" ) payload = dict(fields["form_fields"]) payload[fields["quantity_field"]] = str(quantity) logger.info( "加购请求：basket=%s payload=%s", fields["basket_domain"], payload, ) resp = await self._context.request.post( fields["basket_domain"], form=payload, max_redirects=5, headers={ "Referer": item_url, "Origin": "https://item.rakuten.co.jp", }, ) final_url = str(resp.url) if "/error" in final_url: body = await resp.text() msg = _extract_error_message(body) or f"错误页 {final_url}" raise CartOperationError(f"加购失败：{msg}") # 成功标志：URL 跳到 cart 且带 added_item 参数（探针实测的落地） if "cart" not in final_url: body = await resp.text() raise CartOperationError( f"加购响应异常：final_url={final_url} body_head={body[:200]!r}" ) logger.info( "加购成功：item_id=%s final=%s", fields["form_fields"].get("item_id"), final_url, ) finally: await page.close() # 加购成功后顺带查 cart count（best-effort：失败时返回 -1，不掩盖加购成功） try: _, cart_count = await self._query_cart_count() except CartOperationError as exc: logger.warning("加购后查 cart count 失败（不影响加购结果）：%s", exc.message) cart_count = -1 return { "item_id": fields["form_fields"].get("item_id", ""), "shop_bid": fields["form_fields"].get("shop_bid", ""), "basket_domain": fields["basket_domain"], "cart_count": cart_count, } async def verify_cart(self, task: LeaseTask) -> None: """校验购物车里有没有刚加的商品 策略（探针实测最稳的两步）： 1. 打 cart count JSONP API：status=100 且 count>=1 才算「购物车非空」 2. 打开 cart 页等 SPA 渲染，在 HTML 里找 item_id 登录态失效抛 NotLoggedInError；找不到 item 抛 CartOperationError。 """ async with self._lock: await self._auth_session.require_logged_in("rakuten") await self._refresh_context_if_stale() per_task = self._per_task_state.get(task.task_id, {}) item_id = (task.intent or {}).get("item_id") or per_task.get("item_id") if not item_id: raise CartOperationError( "无法确定 item_id：intent 未提供且 add_to_cart 未记录" ) # 1. cart count API _, count = await self._query_cart_count() if count == 0: raise CartOperationError("购物车为空，加购可能未生效") logger.info("cart count=%s task_id=%s", count, task.task_id) # 2. 渲染 cart 页确认 item_id 在里面 await self._verify_item_in_cart_html(item_id, label=f"task_id={task.task_id}") async def cart_status(self) -> dict: """轻量查询购物车状态：调 cart count JSONP API，不渲染整页 返回 {logged_in, count, raw_status}。 count 是站点返回的购物车里商品总件数（含数量，非 SKU 数）。 raw_status 是站点的状态码字符串，"100" 表示正常。 """ async with self._lock: await self._auth_session.require_logged_in("rakuten") await self._refresh_context_if_stale() raw_status, count = await self._query_cart_count() return { "logged_in": True, "count": count, "raw_status": raw_status, } # ---- 已实现：clear_cart / remove_item（Playwright UI 点击）---- async def clear_cart(self) -> dict: """清空购物车：渲染 cart SPA → 反复点第一个「削除」按钮 → count API 校验 策略：每次循环都重新查 `button[aria-label="削除"]`，点完一个等 SPA 重渲染 再点下一个，避免索引漂移。最多 _CLEAR_CART_MAX_ITER 次防死循环。 未实测前已知边界： - 确认 modal 不确定是否存在，按「先 try 找再 click，找不到就继续」处理 - 若 SPA 把按钮渲染在 iframe 里，selector 失败需实测后调整 - Rakuten cart item 卡片无 data-testid，本方法不依赖 DOM 结构定位 返回 {removed_count, cart_count}；cart_count=-1 表示末尾 count API 调用失败。 """ async with self._lock: await self._auth_session.require_logged_in("rakuten") await self._refresh_context_if_stale() page = await self._context.new_page() removed = 0 try: await page.goto(_CART_PAGE, wait_until="domcontentloaded", timeout=30_000) await self._wait_cart_rendered(page, label="clear_cart") for i in range(_CLEAR_CART_MAX_ITER): btn = page.locator(_DELETE_BUTTON_SELECTOR).first try: await btn.wait_for(state="visible", timeout=2_000) except Exception: logger.info("clear_cart：第 %s 次循环未找到删除按钮，结束", i + 1) break try: await btn.click() except Exception as exc: logger.warning("clear_cart：点击删除按钮失败：%s", exc) break removed += 1 await self._handle_confirm_modal(page) # 等 SPA 重新渲染：domcontentloaded 或 1s 兜底 try: await page.wait_for_load_state("domcontentloaded", timeout=5_000) except Exception: await page.wait_for_timeout(1_000) else: logger.warning( "clear_cart 触发安全上限 %s，可能有删除失败或 SPA 异常", _CLEAR_CART_MAX_ITER, ) finally: await page.close() # 末尾用 count API 校验 try: _, cart_count = await self._query_cart_count() except CartOperationError as exc: logger.warning("clear_cart 后查 cart count 失败：%s", exc.message) cart_count = -1 logger.info("clear_cart 完成：removed=%s cart_count=%s", removed, cart_count) return {"removed_count": removed, "cart_count": cart_count} async def remove_item(self, item_id: str) -> dict: """删除购物车里指定 item_id 的商品 策略：渲染 cart SPA → 在 DOM 里找 button[aria-label="削除"]，向上 walk parentElement 找 innerText 包含 item_id 的祖先 → click 那个按钮。 Rakuten cart item 卡片无稳定 data-* 属性，CSS modules hash class 易变， 只能靠「按钮祖先节点的 innerText 包含目标 item_id」做文本回溯定位。 item_id 在 Rakuten 是 8 位数字，正常页面其他位置误匹配概率低。 Raises: InvalidRequestError: item_id 为空 CartOperationError: 购物车里找不到 item_id NotLoggedInError: 登录态失效 返回 {removed, item_id}。removed=false 表示点击了但 SPA 没在末尾 HTML 里移除该 item_id（可能删除被站点静默拒绝）。 """ if not item_id: raise InvalidRequestError("item_id 必填") async with self._lock: await self._auth_session.require_logged_in("rakuten") await self._refresh_context_if_stale() page = await self._context.new_page() try: await page.goto(_CART_PAGE, wait_until="domcontentloaded", timeout=30_000) await self._wait_cart_rendered(page, label=f"remove_item {item_id}") # JS 在 DOM 里定位包含 item_id 的祖先节点的删除按钮，click 它 clicked = await page.evaluate( """(itemId) => { const buttons = document.querySelectorAll('button[aria-label="削除"]'); for (const btn of buttons) { let node = btn.parentElement; for (let i = 0; i < 12 && node; i++) { const text = node.innerText || ""; if (text.includes(itemId)) { btn.click(); return true; } node = node.parentElement; } } return false; }""", str(item_id), ) if not clicked: raise CartOperationError( f"购物车里没有 item_id={item_id}（或 SPA 未渲染出来）" ) await self._handle_confirm_modal(page) try: await page.wait_for_load_state("domcontentloaded", timeout=5_000) except Exception: await page.wait_for_timeout(1_000) # 校验：item_id 不再出现在 cart HTML html = await page.content() if str(item_id) in html: # SPA 可能还没刷新完，再等 2s 兜底 await page.wait_for_timeout(2_000) html = await page.content() removed = str(item_id) not in html finally: await page.close() logger.info("remove_item 完成：item_id=%s removed=%s", item_id, removed) return {"removed": removed, "item_id": str(item_id)} # ---- 内部辅助：cart count API 与 cart 页渲染 ---- async def _query_cart_count(self) -> tuple[str, int]: """调 cart count JSONP API，返回 (raw_status, count) 解析失败、status 非 100 都抛 CartOperationError——这是站点在告诉我们 「请求被拒了」，常见原因是 Referer 错或 cookie 失效。 """ resp = await self._context.request.get( _CART_COUNT_API + "?sid=1010", headers={"Referer": _CART_PAGE}, ) body = await resp.text() status_match = re.search(r'"status"\s*:\s*"(\d+)"', body) if not status_match: raise CartOperationError(f"cart count 响应无法解析：{body[:200]!r}") raw_status = status_match.group(1) if raw_status != "100": raise CartOperationError( f"cart count API 异常：status={raw_status} body={body[:200]!r}" ) count_match = re.search(r'"count"\s*:\s*"(\d+)"', body) count = int(count_match.group(1)) if count_match and count_match.group(1) else 0 return raw_status, count async def _verify_item_in_cart_html(self, item_id: str, *, label: str) -> None: """渲染 cart SPA，在 HTML 里找 item_id，确认商品确实进了购物车""" page = await self._context.new_page() try: await page.goto(_CART_PAGE, wait_until="domcontentloaded", timeout=30_000) await self._wait_cart_rendered(page, label=label) html = await page.content() # 旧 marker 出现一定是登录失效；新 SPA 不渲染 marker，所以这判据是单边的 if _LEGACY_LOGGED_OUT_MARKER in html: raise NotLoggedInError( site="rakuten", detail="购物车页出现旧版未登录 marker", ) if str(item_id) not in html: raise CartOperationError( f"购物车页未找到 item_id={item_id}（加购可能被服务端静默丢弃）" ) logger.info("cart 校验通过：%s item_id=%s in cart HTML", label, item_id) finally: await page.close() async def _wait_cart_rendered(self, page, *, label: str) -> None: """等 cart SPA 把商品列表渲染出来（shopUrlList 非空），最多 15s 失败时只记 warning 不抛——空购物车时 shopUrlList 本就为空，调用方根据 后续业务逻辑（看 HTML、看 count API）自行判断。 """ try: await page.wait_for_function( """() => { const s = window.__INITIAL_STATE__; return s && s.cart && Array.isArray(s.cart.shopUrlList) && s.cart.shopUrlList.length > 0; }""", timeout=15_000, ) except Exception: logger.warning( "cart SPA 15s 内未渲染出 shopUrlList（可能购物车为空）：%s", label, ) async def _handle_confirm_modal(self, page) -> None: """点击「削除」后若弹出确认 modal，尝试找「はい」/「OK」按钮点击 站点是否弹 modal 未实测确认，按「先 try 找再 click，找不到就跳过」处理。 每个候选 selector 给 1.5s 等待，命中后立即返回。 """ for sel in _CONFIRM_BUTTON_SELECTORS: try: btn = page.locator(sel).first await btn.wait_for(state="visible", timeout=1_500) await btn.click() logger.info("点击确认 modal 按钮：%s", sel) return except Exception: continue # ---- 未实现：保留 NotImplementedError ---- async def enter_checkout(self, task: LeaseTask) -> str: """进入下单确认页。**未实现**：session upgrade 是硬墙""" raise NotImplementedError(_NOT_IMPLEMENTED_MSG) async def parse_checkout(self, html: str) -> CheckoutSummary: """从下单确认页解析应付金额、付款期限、订单号。**未实现**""" raise NotImplementedError(_NOT_IMPLEMENTED_MSG) async def submit_order(self, task: LeaseTask) -> str: """提交下单。**未实现**""" raise NotImplementedError(_NOT_IMPLEMENTED_MSG) async def pay(self, task: LeaseTask, site_order_id: str) -> None: """付款。**未实现**""" raise NotImplementedError(_NOT_IMPLEMENTED_MSG) async def monitor(self, task: LeaseTask, site_order_id: str) -> None: """付款后监控。**未实现**""" raise NotImplementedError(_NOT_IMPLEMENTED_MSG) # ---- 模块级辅助函数（纯函数，便于单测）---- def _parse_initial_state(html: str) -> dict | None: """从商品页 HTML 抽 window.__INITIAL_STATE__ 并解析为 dict""" m = re.search( r"window\.__INITIAL_STATE__\s*=\s*(.+?);\s*window\.", html, re.DOTALL, ) if not m: return None try: return json.loads(m.group(1)) except json.JSONDecodeError: return None def _extract_purchase_fields(state: dict, *, intent_override: dict | None) -> dict: """从 __INITIAL_STATE__ 抽加购所需字段 与 scraping/parsers/item.py::_purchase_info 共用基础字段构造 （app.shared.purchase_contract）；本函数额外做： - variant_id 自动选（多规格挑第一个非售罄；调用方覆盖优先） - choice 自动填（必填选项拼「名:值」；调用方覆盖优先） - 返回 basket_domain / min_price / purchase_condition / shop_name / item_name 等业务字段，便于日志与错误信息使用 """ intent_override = intent_override or {} purchase = state.get("purchase") or {} sell_type = (purchase.get("sellType") or {}).get("normalPurchase") or {} raw_sku = purchase.get("sku") or {} item = state.get("item") or {} shop = (state.get("shop") or {}).get("information") or {} information = purchase.get("information") or {} basket_domain = basket_domain_of(sell_type) inventory_flag = inventory_flag_for(raw_sku.get("inventoryType")) shop_id = shop.get("shopId") item_id = item.get("itemId") form_fields = base_form_fields( shop_id=shop_id, item_id=item_id, inventory_flag=inventory_flag, ) # variant_id 选择：调用方覆盖 > 多规格自动选第一个非售罄 > 单规格用 item.variantId chosen_variant = None if intent_override.get("variant_id"): form_fields["variant_id"] = str(intent_override["variant_id"]) elif inventory_flag == INVENTORY_FLAG_MULTIPLE: for v in raw_sku.get("variants") or []: if not v.get("isSoldOut"): chosen_variant = v break if chosen_variant is None and (raw_sku.get("variants") or []): chosen_variant = raw_sku["variants"][0] if chosen_variant: form_fields["variant_id"] = str( chosen_variant.get("variantId") or chosen_variant.get("id") or "" ) elif inventory_flag == INVENTORY_FLAG_DEFAULT and item.get("variantId"): form_fields["variant_id"] = str(item.get("variantId")) # 必填选项：调用方覆盖 > 自动填第一个候选值 options = information.get("options") or [] required_options = [o for o in options if o.get("isRequired")] has_required = bool(required_options) if intent_override.get("choice"): # 调用方给的可能是 list 或 str c = intent_override["choice"] form_fields["choice"] = ",".join(c) if isinstance(c, list) else str(c) elif has_required: pairs: list[str] = [] for opt in required_options: values = opt.get("values") or [] if values: pairs.append(f"{opt.get('name')}:{values[0].get('name')}") if pairs: form_fields["choice"] = ",".join(pairs) return { "basket_domain": basket_domain, "form_fields": form_fields, "quantity_field": "units", "variant_field": "variant_id", "options_field": "choice" if options else "", "options": options, "has_required_options": has_required, "inventory_flag": inventory_flag, "purchase_condition": sell_type.get("purchaseCondition"), "min_price": sell_type.get("minPrice"), "shop_name": shop.get("shopName"), "item_name": item.get("itemName"), } def _extract_error_message(body: str) -> str: """从 Rakuten 错误页 HTML 抽可读的提示文案""" msgs: list[str] = [] for m in re.findall(r">([^<>]{20,200})<", body): s = m.strip() # 过滤 CSS/JS 标识与版权之类 if not s or any(c in s for c in ["(", ")", "=", "{", "}", "."]): continue if "Rakuten Group" in s or "SSL" in s: continue msgs.append(s) # 取前两条拼起来（实测错误页一般 1~2 条核心提示） return " / ".join(msgs[:2])