WebApi限制IP地址请求(读取XML）

发布时间：2020-12-16 02:04:04 所属栏目：百科来源：网络整理

导读：using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using System.Web.Http.Filters; using System.Net.Http; using System.Net; using System.Collections; using System.Text.RegularExpression

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Http.Filters;
using System.Net.Http;
using System.Net;
using System.Collections;
using System.Text.RegularExpressions;
using System.IO;
using System.Web.UI.WebControls;
using System.Text;
using System.Web.Caching;
using System.Xml.Linq;
namespace IM.WeiXinApi.Filter
{
public class AuthorizeAttrbute : System.Web.Http.Filters.AuthorizationFilterAttribute
{
public override void OnAuthorization(System.Web.Http.Controllers.HttpActionContext actionContext)
{
var ipaddress = GetIpaddress(); //用户的ip
object obj = null;
obj = GetCache(ipaddress+"api"); //获取请求api的ip列表
{
if (obj == null)
{
if (!IpConfig(ipaddress))
{
//返回401错误
actionContext.Response = new HttpResponseMessage
{
Content = new StringContent("当前ip地址" + ipaddress + "无访问权限",
Encoding.GetEncoding("UTF-8"),"application/json"),
StatusCode = HttpStatusCode.Unauthorized
};
return;
}
else
{
SetCache(ipaddress+"api",1,6);
}
}
}
base.OnAuthorization(actionContext);
}
public static bool IpConfig(string ip)
{
string urlIndex = "~/Xml/roleip.xml";
string FileName = System.Web.HttpContext.Current.Server.MapPath(urlIndex);
XDocument doc = XDocument.Load(FileName);
var rel = from p in doc.Descendants("item") where p.Attribute("ip").Value.ToLower() == ip select p;
return rel != null && rel.Count() > 0 ? true : false;
}
/// <summary>
/// 获取当前应用程序指定CacheKey的Cache值
/// </summary>
/// <param name="CacheKey"></param>
/// <returns></returns>
public static object GetCache(string CacheKey)
{
System.Web.Caching.Cache objCache = HttpRuntime.Cache;
return objCache[CacheKey];
}
/// <summary>
/// 设置缓存
/// </summary>
/// <param name="CacheKey"></param>
/// <param name="objObject"></param>
/// <param name="expires_in"></param>
public static void SetCache(string CacheKey,object objObject,double expires_in)
{
Cache objCache = HttpRuntime.Cache;
objCache.Insert(CacheKey,objObject,null,DateTime.Now.AddHours(expires_in),Cache.NoSlidingExpiration);
}
/// <summary>
/// 获取IP地址
/// </summary>
/// <returns></returns>
public static string GetIpaddress()
{
string result = String.Empty;
result = HttpContext.Current.Request.ServerVariables["HTTP_CDN_SRC_IP"];
if (string.IsNullOrEmpty(result))
result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];

if (string.IsNullOrEmpty(result))
result = HttpContext.Current.Request.UserHostAddress;

if (string.IsNullOrEmpty(result) || !IsIP(result))
return "127.0.0.1";

return result;
}
public static bool IsIP(string ip)
{
return Regex.IsMatch(ip,"^((2[0-4]d|25[0-5]|[01]?dd?).){3}(2[0-4]d|25[0-5]|[01]?dd?)$");
}
}

}

http://www.cnblogs.com/nzcblog/p/5073871.html

（编辑：李大同）

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