#974 微信Bot sendtyping彻底修复

根因: sendtyping三个bug - 1.ilink_user_id误用bot ID(应from_user_id用户ID) 2.请求缺base_info 3.未检查ret==0。另发现账号session已过期(-14 session timeout)是sendtyping失效+文本失败的根源。修复: getconfig/sendtyping补base_info+正确ilink_user_id+ret==0判断, -14时写session_expired日志。

backend/python/app/api/im_bot_user.py

@@ -319,7 +319,11 @@ def _wechat_send_message(baseurl: str, bot_token: str, to_user_id: str, context_
 
 
 def _wechat_get_typing_ticket(baseurl: str, bot_token: str, ilink_user_id: str, context_token: str) -> str:
-    """getconfig 获取 typing_ticket（按 ilink_user_id 缓存 24h）。"""
+    """getconfig 获取 typing_ticket（按 ilink_user_id 缓存 24h）。
+
+    #974 修复：ilink_user_id 必须传【用户 ID】(from_user_id)，不是 bot ID；
+    请求体必须带 base_info；响应必须 ret==0 才算成功。
+    """
     global _typing_ticket_cache
     _now = time.time()
     _hit = _typing_ticket_cache.get(ilink_user_id)
@@ -329,14 +333,30 @@ def _wechat_get_typing_ticket(baseurl: str, bot_token: str, ilink_user_id: str,
         resp = requests.post(
             baseurl.rstrip("/") + "/ilink/bot/getconfig",
             headers=_wechat_headers(bot_token),
-            json={"ilink_user_id": ilink_user_id, "context_token": context_token},
+            json={
+                "ilink_user_id": ilink_user_id,
+                "context_token": context_token,
+                "base_info": {"channel_version": "1.0.3"},
+            },
             timeout=10,
         )
         body = resp.json() if resp.content else {}
+        # ret==0 才算成功；-14 会话过期 / -4 RPC 失败均无 ticket
+        ret = body.get("ret")
+        errcode = body.get("errcode")
+        if ret == 0 or (ret is None and errcode is None):
             ticket = body.get("typing_ticket", "") if isinstance(body, dict) else ""
             if ticket:
                 _typing_ticket_cache[ilink_user_id] = (ticket, _now)
             return ticket
+        # 会话过期：记录，供上层标记 expired
+        if errcode == -14 or ret == -14:
+            try:
+                with open("/tmp/wechat_session_expired.log", "a", encoding="utf-8") as _f:
+                    _f.write(_beijing_now().isoformat() + " GETCONFIG_SESSION_EXPIRED user=%s\n" % ilink_user_id)
+            except Exception:
+                pass
+        return ""
     except Exception:
         return ""
 
@@ -349,7 +369,12 @@ def _wechat_send_typing(baseurl: str, bot_token: str, ilink_user_id: str, typing
         resp = requests.post(
             baseurl.rstrip("/") + "/ilink/bot/sendtyping",
             headers=_wechat_headers(bot_token),
-            json={"ilink_user_id": ilink_user_id, "typing_ticket": typing_ticket, "status": status},
+            json={
+                "ilink_user_id": ilink_user_id,
+                "typing_ticket": typing_ticket,
+                "status": status,
+                "base_info": {"channel_version": "1.0.3"},
+            },
             timeout=10,
         )
         return resp.ok
@@ -633,12 +658,11 @@ def _wechat_receiver_loop(account_id: int):
                                  + " ctx=" + repr(ctx) + " raw=" + json.dumps(m, ensure_ascii=False) + "\n")
                 except Exception:
                     pass
-                # 发送"正在输入"状态（尽力而为，失败静默）
+                # 发送"正在输入"状态（#974：ilink_user_id 用用户 ID = sender，非 bot ID）
                 try:
-                    _bot_id = m.get("to_user_id") or d.get("ilink_bot_id") or ""
-                    _ticket = _wechat_get_typing_ticket(baseurl, bot_token, _bot_id, ctx)
-                    if _bot_id and _ticket:
-                        _wechat_send_typing(baseurl, bot_token, _bot_id, _ticket, 1)
+                    _ticket = _wechat_get_typing_ticket(baseurl, bot_token, sender, ctx)
+                    if sender and _ticket:
+                        _wechat_send_typing(baseurl, bot_token, sender, _ticket, 1)
                 except Exception:
                     pass
                 # 先生成回复（此时历史尚未包含本条，避免重复）