Initial commit: TradeMate 外贸小助手 MVP

项目结构: - backend/ Python FastAPI 后端 - uni-app/ uni-app跨端前端 - docs/ 设计文档 - docker-compose.yml Docker编排 - nginx/scripts/systemd 运维配置已完成功能: - 用户认证 (JWT) - 智能翻译 + 回复建议 - 营销素材生成 - 客户管理 + 沉默检测 - 报价单管理 - 产品库管理 - 汇率换算 - 推送通知 (uni-push) - WhatsApp Webhook框架 - Celery定时任务
2026-05-08 18:17:12 +08:00
commit c6206787da
121 changed files with 11743 additions and 0 deletions
@@ -0,0 +1,109 @@
+from typing import Dict, Any, Optional
+import httpx
+import hashlib
+import hmac
+import logging
+from app.config import settings
+
+logger = logging.getLogger(__name__)
+
+
+class WhatsAppService:
+    def __init__(self):
+        self.api_token = settings.WHATSAPP_API_TOKEN
+        self.phone_number_id = settings.WHATSAPP_PHONE_NUMBER_ID
+        self.api_base = f"https://graph.facebook.com/v18.0/{self.phone_number_id}"
+
+    def verify_webhook(self, mode: str, token: str, challenge: str) -> Optional[str]:
+        if mode == "subscribe" and token == settings.WHATSAPP_WEBHOOK_VERIFY_TOKEN:
+            return challenge
+        return None
+
+    def verify_signature(self, body: bytes, signature: str) -> bool:
+        if not signature:
+            return False
+        expected = hmac.new(
+            settings.WHATSAPP_API_TOKEN.encode(),
+            body,
+            hashlib.sha256,
+        ).hexdigest()
+        return hmac.compare_digest(f"sha256={expected}", signature)
+
+    async def send_text(self, to: str, text: str) -> bool:
+        if not self.api_token or not self.phone_number_id:
+            logger.warning("WhatsApp not configured")
+            return False
+
+        async with httpx.AsyncClient() as client:
+            resp = await client.post(
+                f"{self.api_base}/messages",
+                headers={
+                    "Authorization": f"Bearer {self.api_token}",
+                    "Content-Type": "application/json",
+                },
+                json={
+                    "messaging_product": "whatsapp",
+                    "to": to,
+                    "type": "text",
+                    "text": {"body": text},
+                },
+                timeout=15,
+            )
+            if resp.status_code != 200:
+                logger.error(f"WhatsApp send failed: {resp.text}")
+                return False
+            return True
+
+    async def send_template(self, to: str, template_name: str, params: Dict[str, str]) -> bool:
+        if not self.api_token or not self.phone_number_id:
+            return False
+
+        components = [
+            {
+                "type": "body",
+                "parameters": [
+                    {"type": "text", "text": v} for v in params.values()
+                ],
+            }
+        ]
+
+        async with httpx.AsyncClient() as client:
+            resp = await client.post(
+                f"{self.api_base}/messages",
+                headers={"Authorization": f"Bearer {self.api_token}", "Content-Type": "application/json"},
+                json={
+                    "messaging_product": "whatsapp",
+                    "to": to,
+                    "type": "template",
+                    "template": {
+                        "name": template_name,
+                        "language": {"code": "en"},
+                        "components": components,
+                    },
+                },
+                timeout=15,
+            )
+            return resp.status_code == 200
+
+    def parse_webhook(self, body: Dict) -> Optional[Dict]:
+        try:
+            entry = body.get("entry", [{}])[0]
+            change = entry.get("changes", [{}])[0]
+            value = change.get("value", {})
+            messages = value.get("messages", [])
+
+            if not messages:
+                return None
+
+            msg = messages[0]
+            return {
+                "from": msg.get("from"),
+                "text": msg.get("text", {}).get("body", ""),
+                "msg_id": msg.get("id"),
+                "timestamp": msg.get("timestamp"),
+                "type": msg.get("type", "text"),
+                "profile_name": value.get("contacts", [{}])[0].get("profile", {}).get("name"),
+            }
+        except Exception as e:
+            logger.warning(f"Failed to parse WhatsApp webhook: {e}")
+            return None