fix(wx-cps): 修复 微信cps分发时淘宝落地页授权刷新导致click_value 重复入库问题 0624 (#73)

通过authed=1判断当前请求是否是微信授权回填，如果是授权回填，不再insert cps_click

---------

Co-authored-by: guke <guke@autohome.com.cn>
Reviewed-on: #73
Co-authored-by: guke <guke@wonderable.ai>
Co-committed-by: guke <guke@wonderable.ai>

app/api/v1/cps_redirect.py

@@ -83,6 +83,9 @@ def cps_landing(code: str, request: Request, db: Session = Depends(get_db)):
         redirect_uri = f"{settings.CPS_REDIRECT_BASE.rstrip('/')}/wx/oauth/cb"
         auth_url = wx_oauth.build_authorize_url(redirect_uri, "snsapi_base", f"base:{code}")
         return RedirectResponse(auth_url, status_code=302)
+    # ?authed=1 是 userinfo 授权后的自动回跳重载,不是用户主动打开:visit 已在授权前那次
+    # 落地(base 静默授权回来那次)记过,这里再记会让每个走"领券授权"的用户 visit 虚增 1。
+    if request.query_params.get("authed") != "1":
         _record(db, link, request, "visit", openid=openid)
     if link.platform == "taobao":
         activity = db.get(CpsActivity, link.activity_id)
@@ -201,8 +204,9 @@ function copyToken(){
   if(UINFO_URL){location.href=UINFO_URL;return}
   doCopy();
 }
-// userinfo 授权回流(?authed=1):自动复制,把"点领券→授权→复制"衔接成一步无感
-if(location.search.indexOf('authed=1')>=0){doCopy()}
+// userinfo 授权回流(?authed=1):自动复制,把"点领券→授权→复制"衔接成一步无感;
+// 复制后用 replaceState 清掉 authed=1,避免刷新/微信返回(BFCache)重载时重复触发复制上报。
+if(location.search.indexOf('authed=1')>=0){doCopy();history.replaceState(null,'',location.pathname)}
 </script>
 </body>
 </html>"""