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asp.net網(wǎng)站首頁(yè)根據(jù)IP自動(dòng)跳轉(zhuǎn)指定頁(yè)面的示例

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對(duì)于大中型網(wǎng)站,為了增強(qiáng)用戶(hù)體驗(yàn),往往需要根據(jù)不同城市站點(diǎn)的用戶(hù)推送或展現(xiàn)相應(yīng)個(gè)性化的內(nèi)容,如對(duì)于一些大型門(mén)戶(hù)網(wǎng)站的新聞會(huì)有城市站點(diǎn)的功能,如果沒(méi)有設(shè)置相應(yīng)的城市站點(diǎn),默認(rèn)就是根據(jù)用戶(hù)訪(fǎng)問(wèn)的IP地址的所在城市自動(dòng)設(shè)置。本文主要通過(guò)自定義擴(kuò)展IHttpModule接口,考慮到性能IP數(shù)據(jù)庫(kù)主要采用QQwry純真IP數(shù)據(jù)庫(kù),主要實(shí)現(xiàn)根據(jù)IP地址或地址段或IP所在城市進(jìn)行自動(dòng)跳轉(zhuǎn)到指定頁(yè)面的功能(支持Nginx作為前端反向代理服務(wù)器),該WebsiteSkip組件核心代碼如下:

復(fù)制代碼 代碼如下:

using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.Xml;
using System.IO;
using System.Net;
using System.Text.RegularExpressions;
using NetOpen_System.Component.QQWry;

namespace NetOpen_System.Component
{
    public sealed class WebsiteSkipHttpModule : IHttpModule
    {
        #region IHttpModule 成員

        public void Dispose()
        {
        }

        public void Init(HttpApplication context)
        {
            context.BeginRequest += new EventHandler(context_BeginRequest);
        }

 
        #endregion

 
        void context_BeginRequest(object sender, EventArgs e)
        {
            try
            {

                //if (HttpContext.Current.Request.IsLocal)//忽略本地計(jì)算機(jī)請(qǐng)求
                //    return;

                //string ip = HttpContext.Current.Request.UserHostAddress;
                //string ip = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString();
                string ip = string.Empty;
                if (HttpContext.Current.Request.ServerVariables["HTTP_X_REAL_IP"] != null)
                {
                    ip = HttpContext.Current.Request.ServerVariables["HTTP_X_REAL_IP"].ToString();
                }
                else if (HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null)
                {
                    ip = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
                }
                else if (HttpContext.Current.Request.ServerVariables["HTTP_VIA"] != null)
                {
                    ip = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
                }
                else
                {
                    ip = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString();
                }

 
                QQWryLocator qqWry = new QQWryLocator(HttpContext.Current.Server.MapPath(@"~\IpData\qqwry.dat"));

                IPLocation ipaddress = qqWry.Query(ip);  //查詢(xún)一個(gè)IP地址

                string ls_city = ipaddress.Country;
                string ls_urlfrom = string.Empty;
                string ls_urlto = string.Empty;
                string ls_url = HttpContext.Current.Request.Url.AbsoluteUri;
                string ls_useragentkeyword = string.Empty;

                ExcludeUserAgentMatchEngine Em = WebsiteSkipConfiguration.GetConfig().ExcludeUserAgents;

                if(Em.ExcludeUserAgentList.Count > 0)
                {
                    foreach (ExcludeUserAgent ua in Em.ExcludeUserAgentList)
                    {
                        if (HttpContext.Current.Request.UserAgent.Contains(ua.keyword))
                        {
                            return;
                        }
                    }
                }

                UrlMatchEngine pu = WebsiteSkipConfiguration.GetConfig().SkipedUrls;

                if (pu.UrlList.Count > 0)
                {
                    foreach (SkipedUrl sk in pu.UrlList)
                    {

                        if (ls_city.Contains(sk.IpCity))
                        {
                            if (sk.UrlFrom.Length > 0)
                            {
                                if (sk.UrlFrom.Contains(ls_url) !ls_url.Contains(sk.OutKeyWord))
                                {
                                    if (sk.UrlTo.Length > 0)
                                    {
                                        HttpContext.Current.Response.Redirect(sk.UrlTo, true);
                                    }
                                    break;
                                }

                            }

                            break;
                        }
                    }
                }

                if (WebsiteSkipConfiguration.GetConfig().IpChecks.GetIpIn(ip))
                {
                    ls_urlfrom = WebsiteSkipConfiguration.GetConfig().IpChecks.UrlFrom.Trim();
                    ls_urlto = WebsiteSkipConfiguration.GetConfig().IpChecks.UrlTo.Trim();
                    if (ls_urlfrom.Length > 0)
                    {

                        if (ls_urlfrom.Contains(ls_url) !ls_url.Contains(WebsiteSkipConfiguration.GetConfig().IpChecks.OutKeyWord))
                        {
                            if (ls_urlto.Length > 0)
                            {
                                HttpContext.Current.Response.Redirect(ls_urlto, true);
                            }

                        }

                   
                    }
                }

                
            }
            catch
            {

            }
        }
    }
}

在部署方面,非常簡(jiǎn)單主要利用IHttpModule接口并在Web.config中的HttpModule節(jié)點(diǎn)添加此組件的配置,訪(fǎng)問(wèn)限制或允許參數(shù)可以在NetOpen_SystemWebsiteSkip.cfg.xml進(jìn)行設(shè)置,以下為一個(gè)簡(jiǎn)單的配置示例:

復(fù)制代碼 代碼如下:

?xml version="1.0" encoding="utf-8" ?>
NetOpen_System>
  WebsiteSkip>
    SkipedUrl>
    add ipcity="溫州" urlfrom="http://examplesite.com/Default.aspx,http://examplesite.com/,http://examplesite.cn/,http://www.examplesite.cn" urlto="http://wz.mainwebsite.pcom/index.aspx" outkeyword="math"/>
    add ipcity="鎮(zhèn)江" urlfrom="http://examplesite.com/Default.aspx,http://examplesite.com/,http://examplesite.cn/,http://www.examplesite.cn" urlto="http://jszj.mainwebsite.com/index.aspx" outkeyword="math"/>
    /SkipedUrl>
    SkipedIP>
     add ip1="220.186.0.0" ip2="220.186.255.255" urlfrom="http://examplesite.com/Default.aspx,http://examplesite.com/,http://examplesite.cn/,http://www.examplesite.cn" urlto="http://wz.mainwebsite.com/index.aspx" outkeyword="math"/>
    /SkipedIP>
    ExcludeUserAgent>
     add keyword="Baiduspider">
     add keyword="Sosospider">
     add keyword="Sogou web spider">
     add keyword="Sogou inst spider">
     add keyword="Sogou-Test-Spider">
     add keyword="Sogou Orion spider">
     add keyword="Gigabot">
     add keyword="0JJJSpider">
     add keyword="Sogou Pic Spider">
     add keyword="Googlebot">
     add keyword="Yeti/1.0">
    /ExcludeUserAgent>
  /WebsiteSkip>
  /WebsiteSkip>
/NetOpen_System>

標(biāo)簽:大興安嶺 焦作 宜春 新疆 延安 綿陽(yáng) 黃南 曲靖

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