baseline: 批次A-D 成果 + membership 半成品（测试红）
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"""电商全渠道适配器：
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- 统一抽象接口 ChannelAdapter（拉单 / 推库存）
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- 抖店开放平台真实实现（MD5 签名 + access_token + 分→元换算）
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- 1688 开放平台真实实现（HMAC-SHA256 签名 + _aop_timestamp/_aop_signature）
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- MockChannelAdapter 本地/测试模拟
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- 未配置 app_key 的店铺自动回退 Mock，保证开发环境零依赖可用
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"""
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import json
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import time
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from abc import ABC, abstractmethod
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from datetime import datetime, timedelta, timezone as dt_timezone
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from decimal import Decimal
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from typing import Optional, List, Dict, Any
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import httpx
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from .signing import douyin_sign, alibaba1688_sign
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DOUYIN_API_BASE = "https://openapi-fxg.jinritemai.com"
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ALI1688_API_BASE = "https://gw.open.1688.com"
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class ChannelAdapter(ABC):
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"""电商渠道适配器基类。"""
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@abstractmethod
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def fetch_orders(self, account, since: Optional[datetime] = None) -> List[Dict[str, Any]]:
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"""从电商平台拉取最新支付或待发货订单（统一归一化结构）。"""
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pass
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@abstractmethod
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def push_stock(self, account, product_code: str, quantity: Decimal) -> bool:
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"""向电商平台同步库存数量。"""
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pass
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# ============================================================
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# 通用 HTTP 缝隙（便于单测 monkeypatch）
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# ============================================================
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DEFAULT_TIMEOUT = 15.0
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def http_post_json(url: str, params: dict) -> Dict[str, Any]:
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"""POST 表单参数，返回 JSON 响应。"""
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with httpx.Client(timeout=DEFAULT_TIMEOUT) as client:
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resp = client.post(url, data=params)
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resp.raise_for_status()
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return resp.json()
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def http_get_json(url: str, params: dict) -> Dict[str, Any]:
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"""GET 请求，返回 JSON 响应。"""
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with httpx.Client(timeout=DEFAULT_TIMEOUT) as client:
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resp = client.get(url, params=params)
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resp.raise_for_status()
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return resp.json()
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def _as_utc(dt):
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"""把 DB 里的 naive datetime 视为 UTC。"""
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if dt and dt.tzinfo is None:
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return dt.replace(tzinfo=dt_timezone.utc)
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return dt
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# ============================================================
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# 抖店开放平台（Douyin / Jinritemai）
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# ============================================================
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def douyin_build_signed_params(account, method: str, param_json: dict) -> dict:
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"""构造抖店平台标准签名请求参数。"""
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ts = str(int(time.time()))
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params = {
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"method": method,
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"app_key": account.app_key,
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"access_token": account.access_token,
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"param_json": json.dumps(param_json, ensure_ascii=False, separators=(",", ":")),
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"timestamp": ts,
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"v": "2",
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"sign_method": "md5",
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}
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params["sign"] = douyin_sign(params, account.app_secret)
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return params
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def normalize_douyin_orders(api_data: dict) -> List[Dict[str, Any]]:
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"""将抖店 order/searchList 响应归一化为内部订单结构。
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金额字段单位为"分"，统一换算为元（Decimal）。
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"""
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data = api_data.get("data") or {}
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order_list = (
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data.get("shop_order_list")
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or data.get("order_list")
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or data.get("list")
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or []
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)
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results = []
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for od in order_list:
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receiver = od.get("post_receiver") or {}
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pay_amount_cents = od.get("pay_amount") or 0
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items = []
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for sku in od.get("sku_order_list") or []:
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qty = str(sku.get("sku_num") or sku.get("item_num") or "1")
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price_cents = sku.get("sku_order_item_price") or sku.get("sku_price") or 0
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items.append({
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"product_code": str(
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sku.get("external_sku_id")
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or sku.get("ext_product_code")
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or sku.get("sku_id")
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or ""
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),
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"quantity": qty,
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"unit_price": str(Decimal(str(price_cents)) / 100),
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})
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results.append({
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"external_order_id": str(od.get("order_id_str") or od.get("order_id") or od.get("id") or ""),
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"order_status": str(od.get("order_status") or od.get("status") or ""),
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"order_amount": str(Decimal(str(pay_amount_cents)) / 100),
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"buyer_name": str(od.get("buyer_words") or receiver.get("user_name", "") or ""),
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"buyer_phone": str(receiver.get("mobile", "") or ""),
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"receiver_address": " ".join(filter(None, [
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receiver.get("province", ""),
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receiver.get("city", ""),
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receiver.get("town", ""),
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receiver.get("detail", ""),
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])),
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"items": items,
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})
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return results
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class DouyinChannelAdapter(ChannelAdapter):
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"""抖店开放平台适配器（MD5 签名）。"""
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def fetch_orders(self, account, since: Optional[datetime] = None) -> List[Dict[str, Any]]:
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# 未配置真实凭证 → 回退 Mock，方便本地联调
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if not account.app_key or not account.access_token:
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return MockChannelAdapter().fetch_orders(account, since)
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self.ensure_fresh_token(account)
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param_json = {"order_status": 100, "page": 0, "size": 50} # 100 = 已支付待发货
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if since:
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param_json["start_time"] = int(since.timestamp())
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params = douyin_build_signed_params(account, "order.searchList", param_json)
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api_data = self._http_post(f"{DOUYIN_API_BASE}/order/searchList", params)
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return normalize_douyin_orders(api_data)
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def push_stock(self, account, product_code: str, quantity: Decimal) -> bool:
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if not account.app_key or not account.access_token:
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return MockChannelAdapter().push_stock(account, product_code, quantity)
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self.ensure_fresh_token(account)
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param_json = {"product_id": str(product_code), "stock_num": int(quantity)}
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params = douyin_build_signed_params(account, "product.stockNum.update", param_json)
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data = self._http_post(f"{DOUYIN_API_BASE}/product/stockNum/update", params)
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return data.get("code") == 10000
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def ensure_fresh_token(self, account) -> None:
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"""access_token 临期（< 1 天）时自动刷新。"""
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expires_at = _as_utc(account.token_expires_at)
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now = datetime.now(dt_timezone.utc)
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if expires_at and expires_at > now + timedelta(days=1):
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return
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params = {
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"app_key": account.app_key,
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"grant_type": "refresh_token",
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"refresh_token": account.refresh_token,
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}
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params["sign"] = douyin_sign(params, account.app_secret)
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data = self._http_post(f"{DOUYIN_API_BASE}/oauth2/refresh_token", params)
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if data.get("code") == 10000 and data.get("data"):
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token_data = data["data"]
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account.access_token = token_data.get("access_token", account.access_token)
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account.refresh_token = token_data.get("refresh_token", account.refresh_token)
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expires_in = int(token_data.get("expires_in", 604800))
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account.token_expires_at = now + timedelta(seconds=expires_in)
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account.save(update_fields=["access_token", "refresh_token", "token_expires_at", "updated_at"])
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def _http_post(self, url: str, params: dict) -> Dict[str, Any]:
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return http_post_json(url, params)
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# ============================================================
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# 1688 开放平台（Ocean 协议）
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# ============================================================
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def hmac_sha256_upper(secret: str, raw: str) -> str:
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import hashlib
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import hmac as _hmac
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return _hmac.new(
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secret.encode("utf-8"), raw.encode("utf-8"), hashlib.sha256
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).hexdigest().upper()
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def alibaba1688_build_url_params(account, api_path: str, extra_params: dict) -> dict:
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"""构造 1688 Ocean 协议签名请求参数（GET/POST 通用）。
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Ocean 协议签名串 = URL 路径部分(/param2/1/{api}/{appKey}) + 排序后的 k+v 拼接
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"""
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ts = str(int(time.time() * 1000))
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sign_params = dict(extra_params)
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sign_params["access_token"] = account.access_token
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sign_params["_aop_timestamp"] = ts
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sign_params["_aop_key"] = account.app_key
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path_part = f"/param2/1/{api_path}/{account.app_key}"
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sorted_pairs = "".join(f"{k}{sign_params[k]}" for k in sorted(sign_params.keys()))
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sign_raw = f"{path_part}{sorted_pairs}"
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request_params = dict(sign_params)
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request_params["_aop_signature"] = hmac_sha256_upper(account.app_secret, sign_raw)
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return request_params
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def normalize_1688_orders(api_data: dict) -> List[Dict[str, Any]]:
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"""将 1688 alibaba.trade.getBuyerOrderList 响应归一化。
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金额单位为"分"。结构：result.result[] -> baseInfo + productItems[]
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"""
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result = api_data.get("result") or {}
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order_list = result.get("result") or result.get("resultList") or []
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results = []
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for od in order_list:
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base = od.get("baseInfo") or {}
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items = []
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for pi in od.get("productItems") or []:
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qty = str(pi.get("quantity") or pi.get("itemQty") or "1")
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amount_cents = pi.get("itemAmount") or 0
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qty_dec = Decimal(qty) if Decimal(qty) > 0 else Decimal("1")
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unit_price = ((Decimal(str(amount_cents)) / 100) / qty_dec).quantize(Decimal("0.0001"))
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items.append({
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"product_code": str(pi.get("productID") or pi.get("extProductCode") or pi.get("productCode") or ""),
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"quantity": qty,
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"unit_price": str(unit_price),
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})
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results.append({
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"external_order_id": str(base.get("idOfStr") or base.get("id") or ""),
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"order_status": str(base.get("status") or ""),
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"order_amount": str(Decimal(str(base.get("totalAmount") or 0)) / 100),
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"buyer_name": str(base.get("buyerLoginID") or ""),
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"buyer_phone": "",
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"receiver_address": " ".join(filter(None, [
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base.get("receiverProvince", ""),
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base.get("receiverCity", ""),
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base.get("receiverAddress", ""),
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])),
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"items": items,
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})
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return results
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class Alibaba1688Adapter(ChannelAdapter):
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"""1688 开放平台适配器（HMAC-SHA256 签名，Ocean 协议）。"""
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TRADE_API = "com.alibaba.trade/alibaba.trade.getBuyerOrderList"
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def fetch_orders(self, account, since: Optional[datetime] = None) -> List[Dict[str, Any]]:
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if not account.app_key or not account.access_token:
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return MockChannelAdapter().fetch_orders(account, since)
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self.ensure_fresh_token(account)
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extra = {"status": "waitsellerreceive"} # 已付款待收货
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params = alibaba1688_build_url_params(account, self.TRADE_API, extra)
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url = f"{ALI1688_API_BASE}/openapi/param2/1/{self.TRADE_API}/{account.app_key}"
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api_data = self._http_get(url, params)
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return normalize_1688_orders(api_data)
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def push_stock(self, account, product_code: str, quantity: Decimal) -> bool:
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# 1688 商品库存需走 offer 编辑接口（未接入），如实返回 False 交由调用方记录
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if not account.app_key:
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return MockChannelAdapter().push_stock(account, product_code, quantity)
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return False
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def ensure_fresh_token(self, account) -> None:
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"""1688 refreshToken 刷新（ /system/oauth2/refreshToken ）。"""
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expires_at = _as_utc(account.token_expires_at)
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now = datetime.now(dt_timezone.utc)
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if expires_at and expires_at > now + timedelta(days=1):
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return
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params = {
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"appKey": account.app_key,
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"refreshToken": account.refresh_token,
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}
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params["sign"] = alibaba1688_sign(params, account.app_secret)
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url = f"{ALI1688_API_BASE}/openapi/http1/system/oauth2/refreshToken/{account.app_key}"
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data = self._http_post(url, params)
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token = data.get("access_token") or (data.get("result") or {}).get("access_token")
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if token:
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account.access_token = token
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expires_in_raw = data.get("expires_in") or (data.get("result") or {}).get("expires_in") or 86400
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account.token_expires_at = now + timedelta(seconds=int(expires_in_raw))
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account.save(update_fields=["access_token", "token_expires_at", "updated_at"])
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def _http_get(self, url: str, params: dict) -> Dict[str, Any]:
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return http_get_json(url, params)
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def _http_post(self, url: str, params: dict) -> Dict[str, Any]:
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return http_post_json(url, params)
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class MockChannelAdapter(ChannelAdapter):
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"""模拟测试适配器：用于本地环境与单测，生成结构规范的测试订单。"""
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def fetch_orders(self, account, since: Optional[datetime] = None) -> List[Dict[str, Any]]:
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from apps.catalog.models import Product
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p = Product.objects.filter(tenant=account.tenant, status="active").first()
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if not p:
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p = Product.objects.filter(tenant=account.tenant).first()
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prod_code = p.code if p else "P001"
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prod_price = p.sale_price if p else Decimal("50.00")
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return [
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{
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"external_order_id": f"{account.platform.upper()}-{datetime.now().strftime('%Y%m%d%H%M%S')}-001",
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"order_status": "PAID",
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"order_amount": str(prod_price * 2),
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"buyer_name": "张三（电商买家）",
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"buyer_phone": "13800138000",
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"receiver_address": "四川省成都市高新区天府软件园",
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"items": [
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{
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"product_code": prod_code,
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"quantity": "2",
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"unit_price": str(prod_price),
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}
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],
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}
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]
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def push_stock(self, account, product_code: str, quantity: Decimal) -> bool:
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return True
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def get_adapter_for_account(account) -> ChannelAdapter:
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"""工厂方法：根据店铺平台获取对应适配器。"""
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if account.platform == "douyin":
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return DouyinChannelAdapter()
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elif account.platform == "1688":
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return Alibaba1688Adapter()
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else:
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return MockChannelAdapter()
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