我正在ASP.NET MVC3中开发REST API应用程序。我试图让客户端客户端HOST名称在行动但不能成功。我在多个应用程序中使用此API,因此我想记录域名。
HttpContext.Current.Request.UserHostAddress;
System.Web.HttpContext.Current.Request.UserHostName;
System.Web.HttpContext.Current.Request.UserHostAddress;
private string GetClientIp(HttpRequestMessage request)
{
if (request.Properties.ContainsKey("MS_HttpContext"))
{
return ((HttpContextWrapper)request.Properties["MS_HttpContext"]).Request.UserHostAddress;
}
else if (request.Properties.ContainsKey(RemoteEndpointMessageProperty.Name))
{
RemoteEndpointMessageProperty prop;
prop = (RemoteEndpointMessageProperty)request.Properties[RemoteEndpointMessageProperty.Name];
return prop.Address;
}
else
{
return null;
}
}
所有这些选项提供IP地址,但我想获得主机名
API控制器 www.myapi.com
public class TESTController : ApiController
{
public TESTController()
{
}
[HttpGet]
public object Add(string data = "")
{
try
{
string result = "0";
if (!string.IsNullOrEmpty(data))
{
//should be www.myapiconsume.com
var host = System.Web.HttpContext.Current.Request.UserHostName;
var ip = System.Web.HttpContext.Current.Request.UserHostAddress;
}
return new { response = result };
}
catch (Exception ex)
{
throw ex;
}
}
}
从不同的域调用API操作 www.myapiconsume.com
public class HomeController : Controller
{
public ActionResult Index()
{
var url = "http://myapi.com/api/test/add?data={0}";
url = string.Format(url, "{ data}");
WebClient client = new WebClient();
var result = client.DownloadString(url);
return Content(result);
}
}
我怎么能得到这个?
答案 0 :(得分:2)
您可以使用Dns.GetHostEntry方法反向查找。
public static string ReverseLookup(string ip)
{
if (String.IsNullOrWhiteSpace(ip))
return ip;
try
{
IPHostEntry host = Dns.GetHostEntry(ip);
return host != null ? host.HostName : ip;
}
catch (SocketException)
{
return ip;
}
}
答案 1 :(得分:1)
不幸的是,它不是默认提供的;如果你在同一个网络上,你可以尝试:
var result = System.Net.Dns.GetHostEntry(System.Web.HttpContext.Current.Request.ServerVariables("remote_addr"));
但如果客户端通过代理等,那么这也可能会出现问题。
答案 2 :(得分:1)
更新调用操作:
var url = "http://myapi.com/api/test/add?data={0}";
url = string.Format(url, "{ data}");
WebClient client = new WebClient();
client.Headers.Add("Referer", Request.Url.AbsoluteUri);
var result = client.DownloadString(url);
return Content(result);
然后在目标服务器上:
Request.UrlReferrer.Host
如果您的服务器有公共IP,那么您可以尝试解决它:
Dns.GetHostEntry(HttpContext.Current.Request.UserHostAddress)