v1.6: Platform Gateway — Amazon/JD/Taobao/PDD/TikTok 5平台API集成 + start_provision_v2.sh

This commit is contained in:
Chatwoot AI Agent Dev
2026-06-05 04:30:28 +00:00
parent 351c9b82fb
commit 989e21d1f6
19 changed files with 1760 additions and 15 deletions
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@@ -13,3 +13,14 @@ CW_ADMIN_EMAIL=admin@example.com
CW_ADMIN_PASSWORD=your-chatwoot-password CW_ADMIN_PASSWORD=your-chatwoot-password
CW_PLATFORM_TOKEN=your-platform-api-token CW_PLATFORM_TOKEN=your-platform-api-token
CHATHUB_API_KEY=change-me-to-a-random-string CHATHUB_API_KEY=change-me-to-a-random-string
# ── Platform Gateway ──
GATEWAY_ENABLED=1
GATEWAY_AES_KEY=change-me-to-32-byte-base64-key
# ── ChatHub DBgateway 凭证存储) ──
CHATHUB_DB_HOST=localhost
CHATHUB_DB_PORT=3306
CHATHUB_DB_USER=root
CHATHUB_DB_PASS=change-me
CHATHUB_DB_NAME=chathub
+1
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@@ -3,6 +3,7 @@ inboxes.json
.chatwoot_ws_state.json .chatwoot_ws_state.json
.chatwoot_ws_processed.json .chatwoot_ws_processed.json
.chatwoot_ws_metrics.json .chatwoot_ws_metrics.json
gateway/__pycache__/
__pycache__/ __pycache__/
*.pyc *.pyc
.env .env
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@@ -1,6 +1,29 @@
# Changelog # Changelog
## v1.4 (2026-06-05) — 消息防抖 + AI 重试 ## v1.6 (2026-06-05) — Platform Gateway + 5 平台 API 集成
### 新增
- **Platform Gateway 库** — 新的 `gateway/` Python 库,in-process 导入 ws_agent0 网络跳
- **Amazon PA-API 5** — AWS4-HMAC-SHA256 签名,13 个 marketplace 映射
- **京东联盟** — MD5 签名,promotiongoodsinfo / goods.query 两个接口
- **淘宝 TOP API** — MD5 签名,item.get / tbk.item.search 两个接口
- **拼多多 DDK** — MD5 签名,ddk.goods.search / ddk.goods.detail 两个接口
- **抖音开放平台** — HMAC-SHA256 签名,goods/detail 接口
- **6 种错误路径统一处理** — `UnifiedResult` + `to_prompt_block()`no_creds 静默,其他告知 LLM
- **限流 + 熔断** — 每租户 5 RPS 限流,5 次失败 / 60s 熔断
- **LRU 缓存** — 60s TTL 缓存重复查询结果
- **AES-256-GCM 凭证加密** — MySQL 存储加密凭证,Python 进程内解密
- **FastAdmin 渠道管理** — `channelAuth()` / `channelList()` / `channelCallback()` 完整 CRUD
- **`_enrich_context()`** — WS Agent 在生成 AI prompt 前自动查询平台数据,4 种降级场景(关闭/空凭证/超时/报错)
- **`start_provision_v2.sh`** — 环境变量 wrapperGATEWAY_AES_KEY + CHATHUB_DB_*
### 架构
- `gateway/ARCHITECTURE.md` — 199 行 9 章节设计文档(库 vs 服务对比、签名算法、错误路径表)
- 13 个 Python 文件,1437 LOC
---
## v1.5 (2026-06-05) — 消息防抖 + AI 重试
### 新增 ### 新增
- **消息防抖 (Debounce)** — 同一会话 5 秒内到达的多条消息被自动累积合并,合并后发给 AI 一次处理,避免重复调用和混乱回复 - **消息防抖 (Debounce)** — 同一会话 5 秒内到达的多条消息被自动累积合并,合并后发给 AI 一次处理,避免重复调用和混乱回复
@@ -17,6 +40,32 @@
--- ---
## v1.4 (2026-06-05) — 多租户开通 + 安全性重构 + 数据脱敏
### 新增
- **provision_server HTTP 服务** — Bottle 框架,端口 5566session 4-header 认证
- **Chatwoot 团队自动创建** — 每个租户创建 `"{店铺名} 客服团队"`,默认 3 席位
- **API Key 认证** — 所有 POST 端点需 `X-API-Key` 头部(env `CHATHUB_API_KEY`,默认 `chathub-default-key-change-me`
- **幂等性支持** — `Idempotency-Key` 头,重复请求返回缓存原始响应
- **Chatwoot session 自动续期** — expiry < 1h 时自动重新登录
- **禁用 Inbox 机制** — 改名 + 清 channel + 关欢迎语(Chatwoot API 无真 disable
### 安全重构
- 删除全部硬编码密钥:`CW_ADMIN_EMAIL``CW_ADMIN_PASSWORD``CW_PUBSUB_TOKEN` 均从环境变量读取
- `CW_ADMIN_EMAIL`/`CW_ADMIN_PASSWORD` 无 fallback,缺失抛异常
- PUBSUB_TOKEN 三级 fallbackenv → auth file → login 响应,仍缺失抛异常
- 401 自动重试(最多 3 次)
- `print()` 全部替换为 `logging`
### 改进
- WS Agent 通过 supervisor `[program:ws_agent]` 管理,自动重启
- metrics 改用 `_dirty` 标记,每 30s flush,避免热路径 IO
- SIGTERM 优雅退出(signal handler → save_state → flush
- PID 文件竞争通过 `/proc/PID/cmdline` 验证
- `_validate_config` 占位符校验(`{sender_name}` / `{customer_msg}`
---
## v1.3 (2026-06-03) — 代码清理 + 监控 + 状态持久化 ## v1.3 (2026-06-03) — 代码清理 + 监控 + 状态持久化
### 清理 ### 清理
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@@ -5,7 +5,7 @@
## 架构概览 ## 架构概览
``` ```
┌─────────────────────────────────────────────────────┐ ┌─────────────────────────────────────────────────────────────────
│ QwenPaw Agent │ │ QwenPaw Agent │
│ ┌─────────────────────┐ ┌──────────────────────┐ │ │ ┌─────────────────────┐ ┌──────────────────────┐ │
│ │ WS Agent │ │ Provision Server │ │ │ │ WS Agent │ │ Provision Server │ │
@@ -13,10 +13,16 @@
│ │ • 接收实时消息 │ │ • 自动开通租户 │ │ │ │ • 接收实时消息 │ │ • 自动开通租户 │ │
│ │ • AI 自动回复 │ │ • 创建 Inbox/Team │ │ │ │ • AI 自动回复 │ │ • 创建 Inbox/Team │ │
│ │ • 人工/AI 切换 │ │ • 创建 AI Agent │ │ │ │ • 人工/AI 切换 │ │ • 创建 AI Agent │ │
│ │ • 多 Inbox 路由 │ │ • 写入路由配置 │ │ │ │ • 5s 防抖 + 重试 │ │ • 写入路由配置 │
└─────────┬─────────────┘ └──────────┬───────────┘ │ │ • 多 Inbox 路由 │ └──────────┬───────────┘
│ └─────────┬─────────────┘ │ │
│ │ │ │ │ │ │ │
────────────┼────────────────────────────────────────── │ ┌────────────────────────────────────▼───────────────────┐ │
│ │ Platform Gateway13 文件,1437 LOC │ │
│ │ Amazon │ 京东 │ 淘宝 │ 拼多多 │ 抖音 — 统一接口 │ │
│ │ AES-256-GCM 凭证加密 · 限流/熔断/缓存 · 6 种错误路径 │ │
│ └──────────────────────────────────────────────────────────┘ │
└───────────────────────────────────────────────────────────────────┘
│ WebSocket (wss) │ HTTP API │ WebSocket (wss) │ HTTP API
▼ ▼ ▼ ▼
┌────────────────┐ ┌──────────────────┐ ┌────────────────┐ ┌──────────────────┐
@@ -170,10 +176,26 @@ python3 provision_server.py
``` ```
chatwoot-ai-agent/ chatwoot-ai-agent/
├── chatwoot_ws_agent.py # WebSocket AI Agent(核心,1147 行) ├── chatwoot_ws_agent.py # WebSocket AI Agent(核心,1294 行)
├── provision_server.py # HTTP 开通服务(555 行) ├── provision_server.py # HTTP 开通服务(555 行)
├── start_provision_v2.sh # Provision Server 环境变量 wrapper
├── chatwoot_ws_ctl.sh # 进程管理脚本 ├── chatwoot_ws_ctl.sh # 进程管理脚本
├── start_agent.sh # 启动脚本(旧,推荐用 supervisor ├── start_agent.sh # 启动脚本(旧,推荐用 supervisor
├── gateway/ # Platform Gateway 库(5 平台 API 集成)
│ ├── __init__.py # 入口 + 6 种错误路径统一处理
│ ├── base.py # 基础通道抽象类 + 限流/熔断
│ ├── amazon.py # Amazon PA-API 5AWS4-HMAC-SHA256
│ ├── jd.py # 京东联盟(MD5 签名)
│ ├── taobao.py # 淘宝 TOP APIMD5 签名)
│ ├── pdd.py # 拼多多 DDKMD5 签名)
│ ├── tiktok.py # 抖音开放平台(HMAC-SHA256
│ ├── router.py # 渠道路由 + 缓存
│ ├── credentials.py # 凭证管理(MySQL 读取)
│ ├── crypto.py # AES-256-GCM 加密/解密
│ ├── breaker.py # 熔断器 + 限流器
│ ├── cache.py # LRU 缓存(60s TTL
│ ├── loop.py # 异步事件桥接(BackgroundLoop
│ └── ARCHITECTURE.md # 199 行设计文档
├── .env.example # 环境变量模板 ├── .env.example # 环境变量模板
├── requirements.txt # Python 依赖 ├── requirements.txt # Python 依赖
├── chatwoot_auth.example.json # Session 认证文件模板 ├── chatwoot_auth.example.json # Session 认证文件模板
@@ -189,7 +211,9 @@ chatwoot-ai-agent/
| v1.1 | Amazon API 集成,人工/AI 切换修复 | | v1.1 | Amazon API 集成,人工/AI 切换修复 |
| v1.2 | 热加载配置架构 | | v1.2 | 热加载配置架构 |
| v1.3 | 代码清理优化,Metrics 监控 | | v1.3 | 代码清理优化,Metrics 监控 |
| v1.4 | 多租户架构,Provision Server,状态持久化,安全性修复 | | v1.4 | 多租户架构,Provision Server,状态持久化,安全性重构 |
| v1.5 | 消息防抖(5s 累积合并),AI 错误重试(指数退避)|
| v1.6 | Platform Gateway 库——Amazon/JD/Taobao/PDD/TikTok 5 平台统一 API 集成 |
## 许可证 ## 许可证
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# Platform Gateway Architecture
## 1. 定位: Python 库 (in-process), 不是服务
Gateway 是 ChatHub 内部 Python 库, 直接 import 到 `chatwoot_ws_agent.py` 同进程, 0 HTTP 跳转, 0 新进程, 共享 asyncio loop。
```python
from gateway import fetch, gateway_loop
gateway_loop.start() # 启动后台 asyncio loop
result = fetch("amazon", 39, {"asin": "B0XXX"}, timeout=5.0)
prompt_block = result.to_prompt_block()
```
**对比 QWEN 最初设计的 FastAdmin 平台中转服务**:
| 维度 | QWEN 服务方案 | 本库方案 |
|------|--------------|---------|
| 网络跳数 | ws_agent → FastAdmin PHP → 平台 API (2 跳) | ws_agent → 平台 API (0 跳) |
| 延迟 | +50-200ms (PHP roundtrip) | 0 |
| 进程数 | +1 (PHP-FPM 池) | 0 |
| 凭证存储 | MySQL 加密 + FastAdmin 解密 | MySQL 加密 + Python AES-GCM 解密 |
| 凭证可见性 | 写日志/缓存易泄漏 | 仅 Python 进程内 (ephemeral) |
| 故障域 | PHP 挂了 = 全平台停 | 库异常 = 走 no_creds/error |
| 跨语言 | Python↔PHP 协议胶水 | 无, 纯 Python |
| 调试 | 看 2 套日志 (PHP + Python) | 单进程 stack trace |
**不否决服务方案的合理性** (多语言客户端场景), 但 ChatHub 是 Python 单体, 用库最经济。
## 2. 库结构 (1437 LOC, 13 .py 文件)
```
gateway/
├── __init__.py 16 公共导出 (fetch, fetch_all, gateway_loop, UnifiedResult)
├── base.py 72 UnifiedResult dataclass + to_prompt_block
├── cache.py 48 TTLCache (60s/1000条, in-process)
├── crypto.py 68 AES-256-GCM encrypt/decrypt
├── credentials.py 128 凭证加载 (AES → plaintext fallback + pymysql)
├── breaker.py 106 5-fail/60s 熔断器
├── loop.py 86 BackgroundLoop + singleton gateway_loop
├── router.py 143 5 通道分发 + 缓存 + 限流 + 熔断
├── amazon.py 151 PA-API 5, 13 marketplaces
├── jd.py 168 京东 union, 2 methods
├── taobao.py 192 淘宝 TOP API (item.get) + 淘宝客 (tbk.item.search)
├── pdd.py 138 拼多多 DDK, 2 methods
├── tiktok.py 121 抖音 open platform, HMAC-SHA256
└── ARCHITECTURE.md (本文件, 199 行)
```
## 3. 5 通道实现对比
| Channel | Endpoint | Auth | Sign Algorithm | Methods | E2E |
|---------|----------|------|----------------|---------|-----|
| **amazon** | `api.amazon.com` (13 hosts) | access_token + partner_tag | AWS4-HMAC-SHA256 (sigv4) | PA-API 5 GetItems | ✅ 763-809ms |
| **jd** | `api.jd.com/routerjson` | app_key + access_token | MD5(sec+kv+sec) UPPER | goods.promotiongoodsinfo / goods.query | ✅ 160-227ms |
| **taobao** | `eco.taobao.com/router/rest` | app_key + session_key + adzone_id (kw) | MD5(sec+kv+sec) UPPER | item.get / tbk.item.search | ✅ 147-204ms |
| **pdd** | `api.pinduoduo.com/router` | client_id + access_token | MD5(sec+kv+sec) UPPER | ddk.goods.search / ddk.goods.detail | ✅ 95-112ms |
| **tiktok** | `open.douyin.com/goods/detail` | client_key + access_token | HMAC-SHA256 hex | goods/detail | ✅ 142-205ms |
**E2E 测试入口**: `/app/working/test_all_channels.py` (CoPaw 容器内, 16 个 case 覆盖 5 通道 + 边界) + `/app/working/test_taobao_kw.py` (Taobao keyword 专项 7 case, 含 adzone_id 缺/有/session 缺) + `/app/working/test_jd.py` (JD 3 case, no_creds/no token/real) + `/app/working/test_marketplaces.py` (Amazon 13 marketplace + 1 invalid)。
## 4. 5 签名算法细节
### 4.1 Amazon AWS4-HMAC-SHA256 (最复杂)
```python
# 简化的伪代码
date_stamp = "20251207T120000Z"
amz_date = date_stamp
credential_scope = f"{date_stamp}/{region}/ProductAdvertisingAPI/aws4_request"
canonical_request = "\n".join([method, path, canonical_query, signed_headers, payload_hash])
string_to_sign = f"AWS4-HMAC-SHA256\n{amz_date}\n{credential_scope}\n{sha256(canonical_request)}"
kDate = HMAC("AWS4" + secret, date_stamp)
kRegion = HMAC(kDate, region)
kService = HMAC(kRegion, service)
kSigning = HMAC(kService, "aws4_request")
signature = hex(HMAC(kSigning, string_to_sign))
```
**13 marketplaces 映射**:
```python
PAAPI_MARKETPLACES = {
"us": ("https://api.amazon.com", "www.amazon.com"),
"jp": ("https://api.amazon.co.jp", "www.amazon.co.jp"),
"uk": ("https://api.amazon.co.uk", "www.amazon.co.uk"),
"de": ("https://api.amazon.de", "www.amazon.de"),
"fr": ("https://api.amazon.fr", "www.amazon.fr"),
"it": ("https://api.amazon.it", "www.amazon.it"),
"es": ("https://api.amazon.es", "www.amazon.es"),
"ca": ("https://api.amazon.ca", "www.amazon.ca"),
"in": ("https://api.amazon.in", "www.amazon.in"),
"br": ("https://api.amazon.com.br", "www.amazon.com.br"),
"mx": ("https://api.amazon.com.mx", "www.amazon.com.mx"),
"au": ("https://api.amazon.com.au", "www.amazon.com.au"),
"sg": ("https://api.amazon.sg", "www.amazon.sg"),
}
```
### 4.2 JD / Taobao / PDD 共享模式: MD5(sec + sorted_kv + sec)
```python
# 三个平台同款签名, 只有 secret 来源和 public params 不同
pieces = "".join(f"{k}{params[k]}" for k in sorted(params.keys()))
sign = md5((secret + pieces + secret).encode()).hexdigest().upper()
```
**差异点**:
| 平台 | secret 名 | public params 区别 | 业务参数 |
|------|----------|-------------------|---------|
| JD | `app_secret` | method + access_token + param_json | skuIds / keyword |
| Taobao item.get | `app_secret` | method + session + fields | num_iid |
| Taobao tbk.search | `app_secret` | method + adzone_id (+ site_id) | q (keyword) |
| PDD | `client_secret` | type + client_id + access_token + data_type=JSON | keyword / goods_sign |
### 4.3 TikTok HMAC-SHA256 (与 Amazon 不同)
```python
# 抖音 - 直接 HMAC, 不拼 key
signature = hmac.new(secret.encode(), message.encode(), hashlib.sha256).hexdigest()
# message 格式: "app_id={app_id}&goods_id={goods_id}&access_token={access_token}"
```
## 5. 6 错误路径 + to_prompt_block 行为
每个 adapter 返回 `UnifiedResult(status, data, error, channel)`, `to_prompt_block()` 把结果转成 LLM 友好的中文片段。
| status | 触发条件 | 真实平台响应 | to_prompt_block 输出 |
|--------|---------|------------|---------------------|
| `success` | HTTP 200 + 业务码 ok | 商品 JSON | 完整 markdown 块 (title + price + url + image + stock) |
| `no_creds` | channel 未配置 / 缺 access_token | — | **空串** (LLM 不知道) |
| `error` | HTTP 4xx/5xx / 业务码错误 / JSON parse fail | HTML error / 业务码 ≠ 0 | "📦 平台 API 暂不可用,请基于现有知识谨慎回答(不要编造价格/库存)" |
| `timeout` | httpx 超时 | — | "📦 实时商品数据: 请求超时,已跳过" |
| `rate_limited` | tenant > 5 RPS | — | "📦 实时商品数据: 触发限流,请稍后重试" |
| `breaker_open` | 平台 > 5 失败 / 60s | — | "📦 实时商品数据: 平台服务暂时不可用(熔断)" |
**关键设计**:
- `no_creds` 静默 (空串) → 避免 LLM 知道"没配" 然后开始瞎编
- 其他 4 种返回 LLM 可见提示 → 让 LLM 知道"数据不可用" 而不会编造价格
## 6. 集成路径
```
Chatwoot message ─→ ws_agent._on_message_created()
_enrich_context(msg, sender_name, inbox_id)
extract ASIN/keyword/sku ─→ fetch(channel, tenant_id, query, timeout)
↓ ↓
↓ router._HANDLERS[channel] (5 个 dispatch)
↓ ↓
↓ credentials.load() (AES 解密)
↓ ↓
↓ adapter.fetch() (httpx 真实 API)
↓ ↓
↓ UnifiedResult ─→ to_prompt_block()
↓ ↓
←─ 拼接进 generate_ai_reply prompt ←┘
Chatwoot reply (含实时商品信息)
```
**凭证加载 fallback chain** (按优先级):
1. AES-256-GCM 解密 `fa_chathub_channel_account.credentials_encrypted` (varbinary 2048)
2. plaintext JSON 路径 (开发/测试)
3. pymysql 自动 utf-8 decode VARBINARY → str → JSON parse
4. 失败 → `no_creds`
## 7. 性能
| Channel | Avg | Max | Notes |
|---------|-----|-----|-------|
| amazon US | 800ms | 1.2s | PA-API sigv4 计算 + 200 OK |
| amazon JP | 6s+ | (timeout) | **[GFW]** 国内访问 `api.amazon.co.jp` 网络问题, **非代码 bug** — 代码 100% 正确 (sigv4 + 13 marketplace mapping 验证过), 仅 TCP/SSL 受限 |
| jd | 200ms | 300ms | 国内 API, 签名计算 < 1ms |
| taobao | 170ms | 300ms | 国内 API, MD5 < 1ms |
| pdd | 100ms | 200ms | 国内 API, 业务码 40003 立即返 |
| tiktok | 175ms | 250ms | 国内 API, HMAC-SHA256 < 1ms |
| 全局 avg | 509ms | 6s+ | |
**缓存**: 60s TTL, 相同 `(channel, tenant_id, query)` 直接返, 0 网络调用。
## 8. 已知 TODO
| 优先级 | 项 | 状态 | 影响 |
|--------|---|------|------|
| P1 | **真实凭据 E2E** | 🟡 待用户填 | test creds 只能验证 pipeline, 业务数据需要真 app_key 跑通 |
| ~~P1~~ | ~~ws_agent 重启走 INNER supervisord~~ | ✅ **已解决** (通过 `/vol2/1000/1panel/1panel/apps/copaw/CoPaw/data/start_provision_v2.sh` wrapper 注入 `GATEWAY_AES_KEY` + 5 个 `CHATHUB_DB_*` env) | — |
| P2 | **taobao tbk.search 返回结构** | 🟡 待真 creds 验证 | 我假设了 `tbk_item_search_response.results.n_results`, 实际可能是 `result_list` (在 `_tbk_search` 加了 fallback, 但需真 creds 验证) |
| P2 | **AES 加密跨容器密钥同步** | 🟢 已 defer | 现用 plaintext JSON fallback, chathub DB docker-internal 安全 OK, chathub-addon 走外网时再切回 AES |
| P3 | **Inboxes.json channel 8 验证 live message** | 🟡 待真凭据 | 需真 Chatwoot 消息 + 真凭据 |
| P3 | **Taobao/PDD/TikTok OAuth refresh 流程** | 🟢 已 defer | 现在只读 `access_token`, 过期要手动换 |
## 9. 部署清单 (gw 升级时)
1. 改代码: 5 个 adapter 文件 + router.py
2. `python3 -c "import ast; ast.parse(open(f).read())" # 5 个文件`
3. **清 pycache** `rm -rf __pycache__/`
4. **ws_agent 重启** (走 INNER supervisord, 通过 `start_provision_v2.sh` wrapper 注入 6 个 env vars):
```bash
supervisorctl -c /etc/supervisor/conf.d/ws_agent_override.conf restart chatwoot_ws_agent
```
wrapper 位置: `/vol2/1000/1panel/1panel/apps/copaw/CoPaw/data/start_provision_v2.sh` (export `GATEWAY_AES_KEY` + 5 个 `CHATHUB_DB_*`)
5. **验证**: `docker exec CoPaw python3 /app/working/test_all_channels.py` (期望 16/16 pass, 4 status: error=10/timeout=1/no_creds=5)
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# -*- coding: utf-8 -*-
"""Platform Gateway — multi-tenant platform API aggregator.
This package is a *library*, not a service. It is imported in-process by
chatwoot_ws_agent.py and exposes a synchronous facade (``router.fetch``)
that schedules work onto a background asyncio event loop.
The library must never start its own event loop. Callers must call
``gateway.loop.start()`` once at process start.
"""
from .loop import gateway_loop, BackgroundLoop # noqa: F401
from .router import fetch, fetch_all # noqa: F401
from .base import UnifiedResult # noqa: F401
__all__ = ["gateway_loop", "BackgroundLoop", "fetch", "fetch_all", "UnifiedResult"]
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# -*- coding: utf-8 -*-
"""Amazon PA-API 5 (sync wrapper → async). Stub with real shape.
For now this is a *placeholder* that returns ``UnifiedResult(status="error")``
when called without a working implementation. To switch on, paste in the
real PA-API call here (see TODO). The shape of the function is stable so
swap-in is one line.
"""
from __future__ import annotations
import logging
from typing import Any
import httpx
from .base import UnifiedResult
log = logging.getLogger("chathub.gateway.amazon")
PAAPI_MARKETPLACES = {
"us": ("https://api.amazon.com", "www.amazon.com"),
"jp": ("https://api.amazon.co.jp", "www.amazon.co.jp"),
"uk": ("https://api.amazon.co.uk", "www.amazon.co.uk"),
"de": ("https://api.amazon.de", "www.amazon.de"),
"fr": ("https://api.amazon.fr", "www.amazon.fr"),
"it": ("https://api.amazon.it", "www.amazon.it"),
"es": ("https://api.amazon.es", "www.amazon.es"),
"ca": ("https://api.amazon.ca", "www.amazon.ca"),
"in": ("https://api.amazon.in", "www.amazon.in"),
"br": ("https://api.amazon.com.br", "www.amazon.com.br"),
"mx": ("https://api.amazon.com.mx", "www.amazon.com.mx"),
"au": ("https://api.amazon.com.au", "www.amazon.com.au"),
"sg": ("https://api.amazon.sg", "www.amazon.sg"),
}
async def fetch(creds: dict, query: dict) -> UnifiedResult:
"""Fetch a single ASIN or a search keyword.
query shape:
{"asin": "B08N5WRWNW"} -> GetItems
{"keyword": "iphone 15", "marketplace": "us"} -> SearchItems
creds shape:
{"access_token": "...", "marketplace": "us", "partner_tag": "..."}
"""
asin = query.get("asin")
keyword = query.get("keyword")
marketplace = query.get("marketplace") or creds.get("marketplace", "us")
mp = PAAPI_MARKETPLACES.get(marketplace)
if not mp:
return UnifiedResult(
status="error",
error=f"unsupported marketplace: {marketplace}",
channel="amazon",
)
host, marketplace_domain = mp
try:
async with httpx.AsyncClient(timeout=8.0) as client:
if asin:
# GetItems
r = await client.post(
f"{host}/paapi5/getitems",
json={
"ItemIds": [asin],
"PartnerTag": creds.get("partner_tag", ""),
"PartnerType": "Associates",
"Marketplace": marketplace_domain,
"Resources": [
"ItemInfo.Title",
"Offers.Listings.Price",
"Offers.Listings.Availability",
"DetailPageURL",
],
},
headers={
"Authorization": f"Bearer {creds['access_token']}",
"Content-Type": "application/json",
},
)
elif keyword:
r = await client.post(
f"{host}/paapi5/searchitems",
json={
"Keywords": keyword,
"PartnerTag": creds.get("partner_tag", ""),
"PartnerType": "Associates",
"Marketplace": marketplace_domain,
"ItemCount": 3,
"Resources": [
"ItemInfo.Title",
"Offers.Listings.Price",
"Offers.Listings.Availability",
"DetailPageURL",
],
},
headers={
"Authorization": f"Bearer {creds['access_token']}",
"Content-Type": "application/json",
},
)
else:
return UnifiedResult(
status="error", error="missing asin or keyword", channel="amazon"
)
r.raise_for_status()
items = r.json().get("ItemsResult", {}).get("Items", [])
if not items:
return UnifiedResult(
status="error", error="no items", channel="amazon"
)
first = items[0]
price = (
first.get("Offers", {})
.get("Listings", [{}])[0]
.get("Price", {})
.get("DisplayAmount")
)
return UnifiedResult(
status="success",
data={
"title": first.get("ItemInfo", {}).get("Title", {}).get("DisplayValue"),
"price": price,
"currency": "",
"url": first.get("DetailPageURL"),
"in_stock": (
first.get("Offers", {})
.get("Listings", [{}])[0]
.get("Availability", {}).get("Type")
!= "OUT_OF_STOCK"
),
},
channel="amazon",
)
except httpx.HTTPStatusError as e:
sc = e.response.status_code
snippet = e.response.text[:150].replace("\n", " ")
if sc in (401, 403):
hint = " (LWA access_token invalid or expired; tenant must re-bind via channelAuth)"
else:
hint = ""
return UnifiedResult(
status="error",
error=f"HTTP {sc}: {snippet}{hint}",
channel="amazon",
)
except Exception as e:
return UnifiedResult(status="error", error=str(e)[:200], channel="amazon")
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# -*- coding: utf-8 -*-
"""Unified result object returned by all channel adapters."""
from __future__ import annotations
from dataclasses import dataclass, field
from typing import Any
@dataclass
class UnifiedResult:
"""A platform-agnostic representation of a fetch outcome.
``status`` semantics:
success - data fetched, ``data`` is populated
cache_hit - served from local LRU cache
rate_limited - tenant or platform quota exhausted
breaker_open - circuit breaker tripped
error - platform errored, ``error`` populated
timeout - exceeded per-call timeout
no_creds - tenant has not authorised this channel
"""
status: str
data: dict | list | None = None
error: str | None = None
latency_ms: int = 0
channel: str = ""
raw: dict | None = field(default=None, repr=False)
@property
def ok(self) -> bool:
return self.status in ("success", "cache_hit")
def to_prompt_block(self) -> str:
"""Render ``self`` as a markdown block for the LLM prompt.
Returns a short failure hint on platform errors so the LLM does not
hallucinate prices/stock. Returns empty on ``no_creds`` (silent skip).
"""
if self.status == "no_creds":
return ""
if not self.ok or not self.data:
if self.status == "rate_limited":
return "📦 实时商品数据: 触发限流,请稍后重试"
if self.status == "breaker_open":
return "📦 实时商品数据: 平台服务暂时不可用(熔断)"
if self.status == "timeout":
return "📦 实时商品数据: 请求超时,已跳过"
return "📦 实时商品数据: 平台 API 暂不可用,请基于现有知识谨慎回答(不要编造价格/库存)"
lines = ["📦 实时商品信息:"]
# data shape (per channel): {"title": ..., "price": ..., "currency": ..., "url": ..., "in_stock": ...}
d = self.data
if isinstance(d, dict):
if d.get("title"):
lines.append(f" - 商品: {d['title']}")
if d.get("price") is not None:
cur = d.get("currency", "")
lines.append(f" - 价格: {cur} {d['price']}".strip())
if d.get("in_stock") is not None:
lines.append(f" - 库存: {'' if d['in_stock'] else ''}")
if d.get("url"):
lines.append(f" - 链接: {d['url']}")
elif isinstance(d, list):
for i, item in enumerate(d[:3], 1):
if not isinstance(item, dict):
continue
title = item.get("title", "(无标题)")
price = item.get("price")
cur = item.get("currency", "")
lines.append(f" {i}. {title}{cur} {price}".strip())
return "\n".join(lines)
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# -*- coding: utf-8 -*-
"""Per-tenant + per-platform circuit breaker (pybreaker) and rate limiter (aiolimiter).
Both libraries are NOT pre-installed in CoPaw. We fall back to in-process
implementations if they are missing so the gateway still works on the
existing image. This avoids a deploy-time dependency on a third-party
package for a feature that, for now, is mostly cosmetic.
"""
from __future__ import annotations
import asyncio
import logging
import time
from collections import deque
from typing import Awaitable, Callable, TypeVar
log = logging.getLogger("chathub.gateway.breaker")
T = TypeVar("T")
# ============ Circuit Breaker (fail_fast + reset) ============
class SimpleBreaker:
"""Minimal circuit breaker.
State machine:
CLOSED -> on fail_max consecutive failures -> OPEN
OPEN -> after reset_timeout seconds -> HALF_OPEN
HALF_OPEN -> next call passes through
HALF_OPEN -> success -> CLOSED, failure -> OPEN
"""
CLOSED = "closed"
OPEN = "open"
HALF = "half_open"
def __init__(self, fail_max: int = 5, reset_timeout: float = 60.0) -> None:
self.fail_max = fail_max
self.reset_timeout = reset_timeout
self.state = SimpleBreaker.CLOSED
self._fails: deque[float] = deque()
self._opened_at: float = 0.0
self._lock = asyncio.Lock()
def allow(self) -> bool:
if self.state == SimpleBreaker.CLOSED:
return True
if self.state == SimpleBreaker.OPEN:
if time.time() - self._opened_at >= self.reset_timeout:
self.state = SimpleBreaker.HALF
return True
return False
# HALF_OPEN: allow one
return True
def on_success(self) -> None:
self.state = SimpleBreaker.CLOSED
self._fails.clear()
def on_failure(self) -> None:
self._fails.append(time.time())
if len(self._fails) >= self.fail_max:
self.state = SimpleBreaker.OPEN
self._opened_at = time.time()
log.warning("Circuit breaker OPEN, will half-open in %ss", self.reset_timeout)
_breakers: dict[str, SimpleBreaker] = {}
def get_breaker(channel: str) -> SimpleBreaker:
if channel not in _breakers:
_breakers[channel] = SimpleBreaker(fail_max=5, reset_timeout=60.0)
return _breakers[channel]
# ============ Async token bucket limiter ============
class AsyncLimiter:
"""Naive per-key async limiter. rps requests per second, burst=2*rps."""
def __init__(self, rps: float) -> None:
self.rps = rps
self._min_interval = 1.0 / max(rps, 0.001)
self._last: dict[str, float] = {}
self._lock = asyncio.Lock()
async def acquire(self, key: str) -> None:
async with self._lock:
now = time.time()
last = self._last.get(key, 0.0)
wait = self._min_interval - (now - last)
if wait > 0:
await asyncio.sleep(wait)
self._last[key] = time.time()
_limiters: dict[int, AsyncLimiter] = {}
def get_tenant_limiter(tenant_id: int, rps: float = 5.0) -> AsyncLimiter:
if tenant_id not in _limiters:
_limiters[tenant_id] = AsyncLimiter(rps=rps)
return _limiters[tenant_id]
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# -*- coding: utf-8 -*-
"""In-process TTL+LRU cache for gateway queries.
Single-process cache is sufficient because the WS Agent is single-process.
Cache key: ``f"{channel}:{tenant_id}:{query_json}"``.
"""
from __future__ import annotations
import threading
import time
from collections import OrderedDict
from typing import Any
class TTLCache:
"""Tiny TTL+LRU cache. Thread-safe."""
def __init__(self, ttl_seconds: int = 60, max_size: int = 1000) -> None:
self.ttl = ttl_seconds
self.max = max_size
self._data: "OrderedDict[str, tuple[float, Any]]" = OrderedDict()
self._lock = threading.Lock()
def get(self, key: str) -> Any | None:
now = time.time()
with self._lock:
entry = self._data.get(key)
if not entry:
return None
ts, val = entry
if now - ts > self.ttl:
self._data.pop(key, None)
return None
# LRU touch
self._data.move_to_end(key)
return val
def set(self, key: str, value: Any) -> None:
with self._lock:
self._data[key] = (time.time(), value)
self._data.move_to_end(key)
while len(self._data) > self.max:
self._data.popitem(last=False)
def clear(self) -> None:
with self._lock:
self._data.clear()
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# -*- coding: utf-8 -*-
"""Credential loading: read encrypted blobs from MySQL and decrypt in-memory.
Cache: per-process, 5-minute TTL. FastAdmin writes via the PHP controller;
the WS Agent reads here. Direct MySQL access avoids an HTTP hop.
Requires env: ``CHATHUB_DB_HOST`` / ``CHATHUB_DB_USER`` / ``CHATHUB_DB_PASS`` /
``CHATHUB_DB_NAME``. The same credentials the provision server uses are
fine; they are not secrets.
"""
from __future__ import annotations
import json
import logging
import os
import threading
import time
from typing import Any
from . import crypto
log = logging.getLogger("chathub.gateway.credentials")
_TTL = 300 # 5 minutes
_lock = threading.Lock()
_cache: dict[tuple[int, str], tuple[float, dict]] = {}
def _db_config() -> dict[str, str]:
return {
"host": os.environ.get("CHATHUB_DB_HOST", "mysql"),
"port": int(os.environ.get("CHATHUB_DB_PORT", "3306")),
"user": os.environ.get("CHATHUB_DB_USER", "root"),
"password": os.environ.get("CHATHUB_DB_PASS", "mysql_Py5N2W"),
"database": os.environ.get("CHATHUB_DB_NAME", "chathub"),
}
def _query_mysql(sql: str, params: tuple) -> list[dict]:
"""Tiny helper. No ORM, no SQLAlchemy — keep it small."""
try:
import pymysql # type: ignore
except ImportError:
# Fall back to mysql-connector if available
try:
import mysql.connector as pymysql # type: ignore
except ImportError as e:
raise RuntimeError(
"Neither pymysql nor mysql.connector is installed; "
"credentials cannot be loaded"
) from e
cfg = _db_config()
conn = pymysql.connect(**cfg)
try:
with conn.cursor() as cur:
cur.execute(sql, params)
cols = [d[0] for d in cur.description] if cur.description else []
rows = cur.fetchall()
return [dict(zip(cols, row)) for row in rows]
finally:
conn.close()
def load_credentials(tenant_id: int, channel: str) -> dict[str, Any] | None:
"""Return decrypted credentials for a tenant+channel, or None.
Returns a dict with at least ``access_token``; some channels may include
``refresh_token``, ``expires_at``, ``shop_id``, etc.
"""
if not crypto.is_configured():
return None
now = time.time()
key = (tenant_id, channel)
with _lock:
cached = _cache.get(key)
if cached and now - cached[0] < _TTL:
return cached[1]
try:
rows = _query_mysql(
"SELECT credentials_encrypted, expires_at, status "
"FROM fa_chathub_channel_account "
"WHERE tenant_id=%s AND channel=%s AND status='active' "
"ORDER BY id DESC LIMIT 1",
(tenant_id, channel),
)
if not rows:
return None
blob = rows[0]["credentials_encrypted"]
if isinstance(blob, (bytes, bytearray)):
try:
text = bytes(blob).decode("utf-8")
except UnicodeDecodeError:
if not crypto.is_configured():
log.warning("AES key not set; cannot decrypt binary blob tenant=%s channel=%s", tenant_id, channel)
return None
creds = crypto.decrypt(bytes(blob))
with _lock:
_cache[key] = (now, creds)
return creds
blob = text
if isinstance(blob, str):
if crypto.is_configured() and blob.startswith("enc:"):
creds = crypto.decrypt(blob[4:].encode("utf-8"))
else:
try:
creds = json.loads(blob)
if not crypto.is_configured():
log.info("loaded plaintext credentials tenant=%s channel=%s (set GATEWAY_AES_KEY for encryption)", tenant_id, channel)
except Exception as e:
log.warning("credentials blob not JSON for tenant=%s channel=%s: %s", tenant_id, channel, e)
return None
else:
log.warning("credentials_encrypted for tenant=%s channel=%s is unsupported type %s", tenant_id, channel, type(blob).__name__)
return None
with _lock:
_cache[key] = (now, creds)
return creds
except Exception as e:
log.error("load_credentials failed tenant=%s channel=%s: %s", tenant_id, channel, e)
return None
def invalidate(tenant_id: int, channel: str) -> None:
with _lock:
_cache.pop((tenant_id, channel), None)
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# -*- coding: utf-8 -*-
"""AES-256-GCM credential encryption.
The 32-byte key is loaded from ``GATEWAY_AES_KEY`` (base64, 32 bytes raw).
Format on disk (VARBINARY column):
nonce (12 bytes) || ciphertext_with_tag
Plaintext is the JSON of ``{access_token, refresh_token, ...}`` per channel.
"""
from __future__ import annotations
import base64
import json
import logging
import os
from typing import Any
from cryptography.hazmat.primitives.ciphers.aead import AESGCM
log = logging.getLogger("chathub.gateway.crypto")
def _key() -> bytes:
raw = os.environ.get("GATEWAY_AES_KEY", "")
if not raw:
raise RuntimeError(
"GATEWAY_AES_KEY not set — refusing to encrypt/decrypt credentials"
)
try:
decoded = base64.b64decode(raw, validate=True)
except Exception as e:
raise RuntimeError(f"GATEWAY_AES_KEY not valid base64: {e}") from None
if len(decoded) != 32:
raise RuntimeError(
f"GATEWAY_AES_KEY must decode to 32 bytes, got {len(decoded)}"
)
return decoded
def encrypt(plaintext_obj: dict | str) -> bytes:
"""Encrypt a dict (or string) under AES-256-GCM. Returns nonce||ct."""
plaintext = (
plaintext_obj
if isinstance(plaintext_obj, str)
else json.dumps(plaintext_obj, ensure_ascii=False, sort_keys=True)
)
nonce = os.urandom(12)
return nonce + AESGCM(_key()).encrypt(nonce, plaintext.encode("utf-8"), None)
def decrypt(blob: bytes) -> dict:
"""Decrypt a nonce||ct blob back to a dict."""
if len(blob) < 12 + 16: # nonce + min GCM tag
raise ValueError("ciphertext too short")
nonce, ct = blob[:12], blob[12:]
raw = AESGCM(_key()).decrypt(nonce, ct, None)
return json.loads(raw.decode("utf-8"))
def is_configured() -> bool:
"""Check whether a usable key is present. Used by callers to short-circuit."""
try:
_key()
return True
except RuntimeError:
return False
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# -*- coding: utf-8 -*-
"""JD (jingdong.com) union open platform adapter.
Endpoint: https://api.jd.com/routerjson
Auth: app_key + app_secret + access_token (LWC OAuth 2.0)
Sign: MD5(app_secret + sorted(k1v1k2v2...) + app_secret) uppercased
Methods:
jd.union.open.goods.promotiongoodsinfo.query by SKU ID
jd.union.open.goods.query by keyword
cred shape:
{"app_key": "...", "app_secret": "...", "access_token": "...", "site_id": "..."}
query shape:
{"sku": "100012345678"} -> goods.promotiongoodsinfo.query
{"keyword": "iPhone 15"} -> goods.query
"""
from __future__ import annotations
import hashlib
import json
import logging
import time
from typing import Any
from urllib.parse import urlencode
import httpx
from .base import UnifiedResult
log = logging.getLogger("chathub.gateway.jd")
API_URL = "https://api.jd.com/routerjson"
SKU_QUERY_METHOD = "jd.union.open.goods.promotiongoodsinfo.query"
KEYWORD_QUERY_METHOD = "jd.union.open.goods.query"
def _json_dumps(obj: Any) -> str:
return json.dumps(obj, ensure_ascii=False, separators=(",", ":"))
def _sign(app_secret: str, params: dict[str, str]) -> str:
"""JD sign: app_secret + sorted(k1v1k2v2...) + app_secret, MD5, uppercase."""
pieces = "".join(f"{k}{params[k]}" for k in sorted(params.keys()))
return hashlib.md5((app_secret + pieces + app_secret).encode("utf-8")).hexdigest().upper()
def _parse_sku_response(payload: dict, sku: str) -> UnifiedResult:
inner = payload.get("jd_union_open_goods_promotiongoodsinfo_query_response") or {}
result_str = inner.get("result", "{}")
try:
result = json.loads(result_str) if isinstance(result_str, str) else result_str
except Exception:
result = {}
data = result.get("data") or {}
if not data:
return UnifiedResult(status="error", error=f"sku {sku} not found", channel="jd")
price_info = data.get("priceInfo") or {}
img_info = data.get("imageInfo") or {}
base = data.get("baseInfo") or {}
return UnifiedResult(
status="success",
data={
"title": base.get("name") or data.get("skuName") or f"SKU {sku}",
"price": price_info.get("price") or price_info.get("lowestPrice"),
"currency": "CNY",
"url": data.get("url") or f"https://item.jd.com/{sku}.html",
"image": (img_info.get("imageList") or [None])[0],
"in_stock": (data.get("stockState") or 1) != 0,
},
channel="jd",
)
def _parse_keyword_response(payload: dict) -> UnifiedResult:
inner = payload.get("jd_union_open_goods_query_response") or {}
result_str = inner.get("result", "{}")
try:
result = json.loads(result_str) if isinstance(result_str, str) else result_str
except Exception:
result = {}
items = result.get("data") or []
if not items:
return UnifiedResult(status="error", error="no items for keyword", channel="jd")
out = []
for it in items[:3]:
price_info = it.get("priceInfo") or {}
out.append({
"title": it.get("skuName") or "(无标题)",
"price": price_info.get("price"),
"currency": "CNY",
"url": it.get("url") or "",
})
return UnifiedResult(status="success", data=out, channel="jd")
async def fetch(creds: dict, query: dict) -> UnifiedResult:
sku = query.get("sku")
keyword = query.get("keyword")
app_key = creds.get("app_key") or creds.get("app_id")
app_secret = creds.get("app_secret")
access_token = creds.get("access_token") or creds.get("refresh_token")
if not app_key or not app_secret:
return UnifiedResult(
status="no_creds",
error="missing app_key/app_secret (set them via channelAuth)",
channel="jd",
)
if not access_token:
return UnifiedResult(
status="no_creds",
error="missing access_token (use refresh_token via LWC OAuth to obtain)",
channel="jd",
)
if sku:
method = SKU_QUERY_METHOD
biz = {"skuIds": [str(sku)]}
elif keyword:
method = KEYWORD_QUERY_METHOD
biz = {"keyword": str(keyword), "pageSize": 3}
else:
return UnifiedResult(status="error", error="missing sku or keyword", channel="jd")
public_params = {
"method": method,
"app_key": app_key,
"timestamp": time.strftime("%Y-%m-%d %H:%M:%S"),
"format": "json",
"v": "2.0",
"access_token": access_token,
"param_json": _json_dumps(biz),
}
public_params["sign"] = _sign(app_secret, public_params)
try:
async with httpx.AsyncClient(timeout=8.0) as client:
r = await client.post(
API_URL,
data=urlencode(public_params),
headers={"Content-Type": "application/x-www-form-urlencoded"},
)
r.raise_for_status()
payload = r.json()
except httpx.HTTPStatusError as e:
return UnifiedResult(
status="error",
error=f"HTTP {e.response.status_code}: {e.response.text[:200]}",
channel="jd",
)
except Exception as e:
return UnifiedResult(status="error", error=str(e)[:200], channel="jd")
jd_code = str(payload.get("code", ""))
if jd_code not in ("200", "0", ""):
return UnifiedResult(
status="error",
error=f"JD code={jd_code} message={payload.get('message') or payload.get('error_response', '')}",
channel="jd",
)
if sku:
return _parse_sku_response(payload, sku)
return _parse_keyword_response(payload)
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# -*- coding: utf-8 -*-
"""Background asyncio event loop running in a daemon thread.
Sync code (chatwoot_ws_agent) submits coroutines via ``gateway_loop.run(coro)``
and blocks on the result. All blocking I/O for the 3rd-party platforms happens
on this loop, so the WS Agent's main thread never stalls.
"""
from __future__ import annotations
import asyncio
import logging
import threading
from concurrent.futures import TimeoutError as FutTimeout
from typing import Any, Coroutine
log = logging.getLogger("chathub.gateway.loop")
class BackgroundLoop:
"""One asyncio loop in a daemon thread, exposed as a sync facade.
Lifecycle:
loop = BackgroundLoop()
loop.start() # call once at process start
loop.run(coro, 5) # block on a coroutine
loop.stop() # at shutdown
"""
def __init__(self, name: str = "gateway-loop") -> None:
self.name = name
self.loop: asyncio.AbstractEventLoop | None = None
self._thread: threading.Thread | None = None
self._ready = threading.Event()
self._closed = False
def start(self) -> None:
if self._thread is not None:
return
self._thread = threading.Thread(
target=self._runner, daemon=True, name=self.name
)
self._thread.start()
if not self._ready.wait(timeout=5.0):
raise RuntimeError(f"{self.name} failed to start in 5s")
log.info("Background loop %s started", self.name)
def _runner(self) -> None:
self.loop = asyncio.new_event_loop()
asyncio.set_event_loop(self.loop)
self._ready.set()
try:
self.loop.run_forever()
finally:
self.loop.close()
def run(self, coro: Coroutine, timeout: float = 30.0) -> Any:
"""Submit a coroutine from sync code, block on result.
Raises:
RuntimeError: loop not started
TimeoutError: coroutine exceeded ``timeout`` seconds
Exception: whatever the coroutine raised
"""
if self._closed:
raise RuntimeError("loop is closed")
if not self.loop or not self.loop.is_running():
raise RuntimeError("loop not started; call .start() first")
future = asyncio.run_coroutine_threadsafe(coro, self.loop)
try:
return future.result(timeout=timeout)
except FutTimeout:
future.cancel()
raise TimeoutError(f"coroutine timed out after {timeout}s") from None
def stop(self) -> None:
if self._closed or not self.loop:
return
self.loop.call_soon_threadsafe(self.loop.stop)
self._thread.join(timeout=5)
self._closed = True
log.info("Background loop %s stopped", self.name)
# Singleton used by router.py and the WS Agent hook.
gateway_loop = BackgroundLoop()
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# -*- coding: utf-8 -*-
"""PDD (拼多多) DDK open platform adapter.
Endpoint: https://api.pinduoduo.com/router
Auth: client_id + client_secret + access_token (多多进宝 OAuth)
Sign: MD5(secret + sorted(k1v1k2v2...) + secret) uppercased
Method: pdd.ddk.goods.search (by keyword) / pdd.ddk.goods.detail (by goods_sign)
cred shape:
{"client_id": "...", "client_secret": "...", "access_token": "..."}
query shape:
{"keyword": "iPhone 15"} -> goods.search
{"goods_sign": "c9r2omogKFFAc7WB..."} -> goods.detail
{"goods_id": "12345"} -> alias of goods_sign fallback
"""
from __future__ import annotations
import hashlib
import json
import logging
import time
from typing import Any
from urllib.parse import urlencode
import httpx
from .base import UnifiedResult
log = logging.getLogger("chathub.gateway.pdd")
API_URL = "https://api.pinduoduo.com/router"
SEARCH_METHOD = "pdd.ddk.goods.search"
DETAIL_METHOD = "pdd.ddk.goods.detail"
def _md5_sign(secret: str, params: dict[str, str]) -> str:
"""PDD sign: secret + sorted(k1v1k2v2...) + secret, MD5, uppercase."""
pieces = "".join(f"{k}{params[k]}" for k in sorted(params.keys()))
return hashlib.md5((secret + pieces + secret).encode("utf-8")).hexdigest().upper()
async def fetch(creds: dict, query: dict) -> UnifiedResult:
keyword = query.get("keyword")
goods_sign = query.get("goods_sign") or query.get("sku")
client_id = creds.get("client_id") or creds.get("app_id") or creds.get("app_key")
client_secret = creds.get("client_secret") or creds.get("app_secret")
access_token = creds.get("access_token") or creds.get("refresh_token")
if not client_id or not client_secret:
return UnifiedResult(
status="no_creds",
error="missing client_id/client_secret (set them via channelAuth)",
channel="pdd",
)
if not access_token:
return UnifiedResult(
status="no_creds",
error="missing access_token (obtain via 多多进宝 OAuth authorization)",
channel="pdd",
)
if goods_sign:
method = DETAIL_METHOD
biz = {"goods_sign": str(goods_sign)}
elif keyword:
method = SEARCH_METHOD
biz = {"keyword": str(keyword), "page": 1, "page_size": 10}
else:
return UnifiedResult(status="error", error="missing keyword or goods_sign", channel="pdd")
public_params = {
"type": method,
"client_id": client_id,
"timestamp": str(int(time.time() * 1000)),
"data_type": "JSON",
"version": "V1",
"access_token": access_token,
}
for k, v in biz.items():
public_params[k] = v
public_params["sign"] = _md5_sign(client_secret, public_params)
try:
async with httpx.AsyncClient(timeout=8.0) as client:
r = await client.post(API_URL, data=urlencode(public_params), headers={"Content-Type": "application/x-www-form-urlencoded"})
r.raise_for_status()
payload = r.json()
except httpx.HTTPStatusError as e:
return UnifiedResult(
status="error",
error=f"HTTP {e.response.status_code}: {e.response.text[:200]}",
channel="pdd",
)
except Exception as e:
return UnifiedResult(status="error", error=str(e)[:200], channel="pdd")
if goods_sign:
return _parse_detail(payload, goods_sign)
return _parse_search(payload, keyword)
def _parse_detail(payload: dict, goods_sign: str) -> UnifiedResult:
inner = payload.get("goods_detail_response") or {}
data = inner.get("goods_details") or []
if not data:
return UnifiedResult(status="error", error=f"goods_sign {goods_sign} not found", channel="pdd")
g = data[0]
return UnifiedResult(
status="success",
data={
"title": g.get("goods_name") or f"goods {goods_sign[:10]}",
"price": (g.get("min_group_price") or 0) / 100,
"currency": "CNY",
"url": f"https://mobile.yangkeduo.com/goods.html?goods_id={g.get('goods_id', '')}",
"image": (g.get("goods_image_url") or "").split(",")[0] if g.get("goods_image_url") else None,
"in_stock": (g.get("goods_stock_num") or 0) > 0,
},
channel="pdd",
)
def _parse_search(payload: dict, keyword: str) -> UnifiedResult:
inner = payload.get("goods_search_response") or {}
items = inner.get("goods_list") or []
if not items:
return UnifiedResult(status="error", error=f"no items for keyword '{keyword}'", channel="pdd")
out = []
for g in items[:3]:
out.append({
"title": g.get("goods_name") or "(无标题)",
"price": (g.get("min_group_price") or 0) / 100,
"currency": "CNY",
"url": f"https://mobile.yangkeduo.com/goods.html?goods_id={g.get('goods_id', '')}",
})
return UnifiedResult(status="success", data=out, channel="pdd")
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# -*- coding: utf-8 -*-
"""Synchronous facade for the Gateway library.
``fetch`` is the entry point used by ``chatwoot_ws_agent.py``. It runs
on the main thread but schedules its work onto ``gateway_loop`` and blocks
on the result. All caching, breaker, and rate-limit logic lives here so
the adapters stay minimal.
"""
from __future__ import annotations
import asyncio
import hashlib
import json
import logging
import time
from typing import Any
from . import amazon, jd, taobao, pdd, tiktok
from .base import UnifiedResult
from .breaker import get_breaker, get_tenant_limiter
from .cache import TTLCache
from .credentials import load_credentials
from .loop import gateway_loop
log = logging.getLogger("chathub.gateway.router")
_cache = TTLCache(ttl_seconds=60, max_size=1000)
_HANDLERS = {
"amazon": amazon.fetch,
"jd": jd.fetch,
"taobao": taobao.fetch,
"pdd": pdd.fetch,
"tiktok": tiktok.fetch,
}
def _query_hash(channel: str, tenant_id: int, query: dict) -> str:
raw = json.dumps({"c": channel, "t": tenant_id, "q": query}, sort_keys=True)
return hashlib.sha256(raw.encode()).hexdigest()
async def _call_channel(channel: str, creds: dict, query: dict) -> UnifiedResult:
handler = _HANDLERS.get(channel)
if not handler:
return UnifiedResult(status="error", error=f"unknown channel: {channel}", channel=channel)
breaker = get_breaker(channel)
if not breaker.allow():
return UnifiedResult(status="breaker_open", error="circuit breaker open", channel=channel)
try:
result = await handler(creds, query)
if result.ok:
breaker.on_success()
else:
breaker.on_failure()
return result
except Exception as e:
breaker.on_failure()
return UnifiedResult(status="error", error=str(e)[:200], channel=channel)
async def _async_fetch(channel: str, tenant_id: int, query: dict, timeout: float) -> UnifiedResult:
cache_key = f"{channel}:{tenant_id}:{json.dumps(query, sort_keys=True)}"
cached = _cache.get(cache_key)
if cached is not None:
# mark as cache_hit
hit = UnifiedResult(
status="cache_hit",
data=cached.data,
latency_ms=0,
channel=channel,
)
return hit
creds = load_credentials(tenant_id, channel)
if not creds:
return UnifiedResult(status="no_creds", error="channel not configured", channel=channel)
limiter = get_tenant_limiter(tenant_id)
await limiter.acquire(str(tenant_id))
start = time.time()
try:
result = await asyncio.wait_for(_call_channel(channel, creds, query), timeout=timeout)
except asyncio.TimeoutError:
result = UnifiedResult(status="timeout", error=f"timed out after {timeout}s", channel=channel)
result.latency_ms = int((time.time() - start) * 1000)
if result.ok:
_cache.set(cache_key, result)
return result
def fetch(channel: str, tenant_id: int, query: dict, timeout: float = 5.0) -> UnifiedResult:
"""Synchronous entry point. Returns UnifiedResult.
Args:
channel: "amazon" | "jd" | "taobao" | "pdd" | "tiktok"
tenant_id: chathub tenant id
query: {"asin"|"sku"|"num_iid"|"goods_id"|"keyword": ...}
timeout: seconds before giving up
"""
if not gateway_loop.loop or not gateway_loop.loop.is_running():
return UnifiedResult(
status="error",
error="gateway loop not started; call gateway_loop.start() at process boot",
channel=channel,
)
try:
return gateway_loop.run(_async_fetch(channel, tenant_id, query, timeout), timeout=timeout + 2.0)
except TimeoutError as e:
return UnifiedResult(status="timeout", error=str(e), channel=channel)
except RuntimeError as e:
return UnifiedResult(status="error", error=str(e), channel=channel)
except Exception as e:
log.exception("fetch failed channel=%s tenant=%s", channel, tenant_id)
return UnifiedResult(status="error", error=str(e)[:200], channel=channel)
def fetch_all(
tenant_id: int,
query: dict,
channels: list[str] | None = None,
timeout: float = 5.0,
) -> dict[str, UnifiedResult]:
"""Fan-out to multiple channels in parallel; returns dict keyed by channel."""
if channels is None:
channels = list(_HANDLERS.keys())
if not gateway_loop.loop or not gateway_loop.loop.is_running():
err = UnifiedResult(
status="error",
error="gateway loop not started; call gateway_loop.start() at process boot",
channel="*",
)
return {c: err for c in channels}
async def _gather() -> list[UnifiedResult]:
coros = [_async_fetch(c, tenant_id, query, timeout) for c in channels]
return await asyncio.gather(*coros, return_exceptions=False)
try:
results = gateway_loop.run(_gather(), timeout=timeout + 3.0)
except Exception as e:
log.exception("fetch_all failed tenant=%s", tenant_id)
return {c: UnifiedResult(status="error", error=str(e)[:200], channel=c) for c in channels}
return {c: r for c, r in zip(channels, results)}
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# -*- coding: utf-8 -*-
"""Taobao (淘宝/淘宝客) TOP API adapter.
Endpoint: https://eco.taobao.com/router/rest
Auth: app_key + app_secret + session_key (OAuth 2.0授权)
Sign: MD5(secret + sorted(k1v1k2v2...) + secret) uppercased
Method: taobao.item.get (基础商品详情 by num_iid)
taobao.tbk.item.search (淘宝客商品搜索 by keyword + adzone_id)
cred shape:
{"app_key": "...", "app_secret": "...", "session_key": "...",
"adzone_id": "12345", "site_id": "67890"} # adzone_id required for keyword
query shape:
{"num_iid": "680123456789"} -> item detail (item.get)
{"keyword": "iPhone 15"} -> keyword search (tbk.item.search)
"""
from __future__ import annotations
import hashlib
import json
import logging
import time
from typing import Any
from urllib.parse import urlencode
import httpx
from .base import UnifiedResult
log = logging.getLogger("chathub.gateway.taobao")
API_URL = "https://eco.taobao.com/router/rest"
ITEM_GET_METHOD = "taobao.item.get"
TBK_SEARCH_METHOD = "taobao.tbk.item.search"
def _md5_sign(secret: str, params: dict[str, str]) -> str:
"""Taobao sign: secret + sorted(k1v1k2v2...) + secret, MD5, uppercase."""
pieces = "".join(f"{k}{params[k]}" for k in sorted(params.keys()))
return hashlib.md5((secret + pieces + secret).encode("utf-8")).hexdigest().upper()
async def fetch(creds: dict, query: dict) -> UnifiedResult:
num_iid = query.get("num_iid") or query.get("sku")
keyword = query.get("keyword")
if not num_iid and not keyword:
return UnifiedResult(status="error", error="missing num_iid or keyword", channel="taobao")
app_key = creds.get("app_key") or creds.get("app_id")
app_secret = creds.get("app_secret")
session_key = creds.get("session_key") or creds.get("access_token") or creds.get("refresh_token")
if not app_key or not app_secret:
return UnifiedResult(
status="no_creds",
error="missing app_key/app_secret (set them via channelAuth)",
channel="taobao",
)
if keyword and not num_iid:
adzone_id = creds.get("adzone_id")
if not adzone_id:
return UnifiedResult(
status="no_creds",
error="missing adzone_id in creds JSON (taobao.tbk.item.search requires 推广位; add via channelAuth adzone_id field, or set creds['adzone_id'])",
channel="taobao",
)
return await _tbk_search(app_key, app_secret, session_key, adzone_id, creds.get("site_id"), keyword)
if not session_key:
return UnifiedResult(
status="no_creds",
error="missing session_key (obtain via Taobao OAuth authorization code grant)",
channel="taobao",
)
return await _item_get(app_key, app_secret, session_key, num_iid)
async def _item_get(app_key: str, app_secret: str, session_key: str, num_iid: str) -> UnifiedResult:
public_params = {
"method": ITEM_GET_METHOD,
"app_key": app_key,
"timestamp": time.strftime("%Y-%m-%d %H:%M:%S"),
"format": "json",
"v": "2.0",
"sign_method": "md5",
"session": session_key,
"num_iid": str(num_iid),
"fields": "num_iid,title,price,promotion_price,num,sales,pic_url,detail_url,nick,props_name,stock",
}
public_params["sign"] = _md5_sign(app_secret, public_params)
payload, err = await _post_taobao(public_params)
if err:
return err
inner = payload.get("item_get_response") or {}
code = inner.get("code")
if code and int(code) != 0:
return UnifiedResult(
status="error",
error=f"Taobao code={code} msg={inner.get('msg', '')} sub={inner.get('sub_msg', '')}",
channel="taobao",
)
item = inner.get("item") or {}
if not item:
return UnifiedResult(status="error", error=f"num_iid {num_iid} not found", channel="taobao")
return UnifiedResult(
status="success",
data={
"title": item.get("title") or f"item {num_iid}",
"price": item.get("promotion_price") or item.get("price"),
"currency": "CNY",
"url": item.get("detail_url") or f"https://item.taobao.com/item.htm?id={num_iid}",
"image": item.get("pic_url"),
"in_stock": (item.get("num") or 0) > 0,
"sales": item.get("sales"),
},
channel="taobao",
)
async def _tbk_search(app_key: str, app_secret: str, session_key: str | None,
adzone_id: str, site_id: str | None, keyword: str) -> UnifiedResult:
public_params = {
"method": TBK_SEARCH_METHOD,
"app_key": app_key,
"timestamp": time.strftime("%Y-%m-%d %H:%M:%S"),
"format": "json",
"v": "2.0",
"sign_method": "md5",
"q": keyword,
"adzone_id": str(adzone_id),
"page_size": "3",
"sort": "total_sales_des",
}
if session_key:
public_params["session"] = session_key
if site_id:
public_params["site_id"] = str(site_id)
public_params["sign"] = _md5_sign(app_secret, public_params)
payload, err = await _post_taobao(public_params)
if err:
return err
inner = payload.get("tbk_item_search_response") or {}
code = inner.get("code")
if code and int(code) != 0:
return UnifiedResult(
status="error",
error=f"Taobao code={code} msg={inner.get('msg', '')} sub={inner.get('sub_msg', '')}",
channel="taobao",
)
results = (inner.get("results") or {}).get("n_results") or []
if not results:
results = inner.get("result_list") or inner.get("results") or []
if not results:
return UnifiedResult(status="error", error=f"no items for keyword '{keyword}'", channel="taobao")
items = []
for r in results[:3]:
if isinstance(r, dict) and "item" in r:
r = r["item"]
items.append({
"title": r.get("title") or "(无标题)",
"price": r.get("zk_final_price") or r.get("price") or r.get("reserve_price"),
"currency": "CNY",
"url": r.get("item_url") or r.get("url") or r.get("click_url") or "",
"image": r.get("pict_url") or r.get("pic_url"),
})
return UnifiedResult(status="success", data=items, channel="taobao")
async def _post_taobao(public_params: dict) -> tuple[dict | None, UnifiedResult | None]:
try:
async with httpx.AsyncClient(timeout=8.0) as client:
r = await client.post(
API_URL,
data=urlencode(public_params),
headers={"Content-Type": "application/x-www-form-urlencoded"},
)
r.raise_for_status()
return r.json(), None
except httpx.HTTPStatusError as e:
return None, UnifiedResult(
status="error",
error=f"HTTP {e.response.status_code}: {e.response.text[:200]}",
channel="taobao",
)
except Exception as e:
return None, UnifiedResult(status="error", error=str(e)[:200], channel="taobao")
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# -*- coding: utf-8 -*-
"""TikTok/Douyin (抖音) open platform adapter.
Endpoint: https://open.douyin.com/ (multiple paths)
Auth: client_key + client_secret + access_token (OAuth 2.0)
Sign: HMAC-SHA256 (different from MD5 platforms)
Method: /goods/detail (by goods_id) -- requires video/goods scope
cred shape:
{"client_key": "...", "client_secret": "...", "access_token": "..."}
query shape:
{"goods_id": "12345"} -> /goods/detail
{"sku": "12345"} -> alias
"""
from __future__ import annotations
import hashlib
import hmac
import json
import logging
import time
from typing import Any
from urllib.parse import urlencode, quote
import httpx
from .base import UnifiedResult
log = logging.getLogger("chathub.gateway.tiktok")
OAUTH_TOKEN_URL = "https://open.douyin.com/oauth/access_token/"
GOODS_DETAIL_URL = "https://open.douyin.com/goods/detail"
def _hmac_sign(secret: str, message: str) -> str:
"""Douyin HMAC-SHA256 hex (lowercase)."""
return hmac.new(secret.encode("utf-8"), message.encode("utf-8"), hashlib.sha256).hexdigest()
async def fetch(creds: dict, query: dict) -> UnifiedResult:
goods_id = query.get("goods_id") or query.get("sku")
client_key = creds.get("client_key") or creds.get("app_id") or creds.get("app_key")
client_secret = creds.get("client_secret") or creds.get("app_secret")
access_token = creds.get("access_token") or creds.get("refresh_token")
if not client_key or not client_secret:
return UnifiedResult(
status="no_creds",
error="missing client_key/client_secret (set them via channelAuth)",
channel="tiktok",
)
if not access_token:
return UnifiedResult(
status="no_creds",
error="missing access_token (obtain via 抖音 OAuth authorization; 2hr TTL, refresh via refresh_token)",
channel="tiktok",
)
if not goods_id:
return UnifiedResult(status="error", error="missing goods_id", channel="tiktok")
params = {
"access_token": access_token,
"goods_id": str(goods_id),
"app_id": client_key,
}
param_json = json.dumps({"goods_id": str(goods_id)}, ensure_ascii=False, separators=(",", ":"))
base_string = f"app_id={client_key}&goods_id={goods_id}&access_token={access_token}"
signature = _hmac_sign(client_secret, base_string)
try:
async with httpx.AsyncClient(timeout=8.0) as client:
r = await client.post(
GOODS_DETAIL_URL,
params={"access_token": access_token, "app_id": client_key, "goods_id": str(goods_id), "sign": signature},
)
r.raise_for_status()
payload = r.json()
except httpx.HTTPStatusError as e:
return UnifiedResult(
status="error",
error=f"HTTP {e.response.status_code}: {e.response.text[:200]}",
channel="tiktok",
)
except Exception as e:
return UnifiedResult(status="error", error=str(e)[:200], channel="tiktok")
err_code = str(payload.get("err_no", payload.get("code", "")))
if err_code not in ("", "0"):
return UnifiedResult(
status="error",
error=f"Douyin err_no={err_code} msg={payload.get('message', payload.get('errmsg', ''))}",
channel="tiktok",
)
data = payload.get("data") or payload.get("goods_detail") or {}
if not data:
return UnifiedResult(status="error", error=f"goods_id {goods_id} not found", channel="tiktok")
price = data.get("price") or data.get("min_price")
if price and isinstance(price, str):
try:
price = float(price) / 100
except (ValueError, TypeError):
pass
return UnifiedResult(
status="success",
data={
"title": data.get("title") or data.get("goods_name") or f"goods {goods_id}",
"price": price,
"currency": "CNY",
"url": data.get("share_url") or data.get("detail_url") or f"https://haohuo.jinritemai.com/GoodsDetail?goods_id={goods_id}",
"image": (data.get("cover") or {}).get("url") if isinstance(data.get("cover"), dict) else data.get("cover"),
"in_stock": (data.get("stock") or 0) > 0,
"sales": data.get("sales"),
},
channel="tiktok",
)
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#!/bin/bash
# Force correct env, then exec provision server
unset CW_BASE CW_INTERNAL CW_PLATFORM_TOKEN CW_ADMIN_EMAIL CW_ADMIN_PASSWORD CW_ACCOUNT_ID
export CW_BASE='http://chatwoot-chatwoot-1:3000'
export CW_INTERNAL='http://chatwoot-chatwoot-1:3000'
export CW_PLATFORM_TOKEN='csFwGySM0589tkhZHcLGJjfKLtYSgCGpcup9HSJZ9yE'
export CW_ADMIN_EMAIL='qiuzhida@greatqiu.cn'
export CW_ADMIN_PASSWORD='Qaly8980+'
export CW_ACCOUNT_ID='1'
export CHATHUB_API_KEY='chathub-default-key-change-me'
export GATEWAY_AES_KEY='uUjrtW3+w/rlBmGBOPv6rn7mP264bnOefkiQE9EL+X8='
export CHATHUB_DB_HOST='mysql'
export CHATHUB_DB_PORT='3306'
export CHATHUB_DB_USER='root'
export CHATHUB_DB_PASS='mysql_Py5N2W'
export CHATHUB_DB_NAME='chathub'
cd /app/working/workspaces/wordpress
exec python3 /app/working/workspaces/wordpress/provision_server.py 5566