C# 後台擷取請求來源

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 /// <summary>        /// 下載APP        /// </summary>        /// <returns></returns>        [AllowAnonymous]        [Route("download/app")]        public ActionResult DownloadApp() {            string android = "android";            //擷取客服端請求源            string agent = Request.UserAgent;            string[] keywords = { "Android", "iPhone", "iPod", "iPad", "Windows Phone", "MQQBrowser" };            // CloudWave.Framework.Core.Logging.Logging4net.WriteInfo(agent);            //排除 Windows 案頭系統                       //if (!agent.Contains("Windows NT") || (agent.Contains("Windows NT") && agent.Contains("compatible; MSIE 9.0;")))            var downloadurl = "";            //判斷是, 直接響應應用寶地址            if (agent.ToLower().Contains("micromessenger")) {                //擷取配置資訊                var wxUrl = ConfigurationManager.AppSettings["YingYongBao"];                if (!string.IsNullOrEmpty(wxUrl)) {                    return Redirect(wxUrl);                }                return RedirectToAction("index");            }            if (agent.ToLower().Contains(android)) {                downloadurl = ConfigurationManager.AppSettings["AndroidUrl"];                if (string.IsNullOrEmpty(downloadurl)) {                    return RedirectToAction("index");                }            } else {                downloadurl = ConfigurationManager.AppSettings["IOSUrl"];                if (string.IsNullOrEmpty(downloadurl)) {                    return RedirectToAction("index");                }                if (agent.ToLower().Contains("weibo")) {                    downloadurl = "itms-apps" + downloadurl.Substring(downloadurl.IndexOf(":")); //itms-apps://                }            }            return Redirect(downloadurl);        }

 

C# 後台擷取請求來源