Sry.Framework.Web/HttpUtils.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Text.RegularExpressions;
using System.Web;
using System.IO;
using System.Runtime.InteropServices;
using System.Reflection;

namespace Sry.Framework.Web
{
    public class HttpUtils
    {

        public static byte[] GetImageBytes(string mapUrl)
        {
            WebClient oClient = new WebClient();
            byte[] bytes = oClient.DownloadData(mapUrl);
            return bytes;
        }
        /// <summary>
        /// 获取匹配结果
        /// </summary>
        /// <param name="input">源字符串</param>
        /// <param name="pattern">验证字符串</param>
        /// <param name="find"></param>
        /// <returns></returns>
        public static Match GetMatch(string input, string pattern, string find)
        {
            string _pattn = Regex.Escape(pattern);
            _pattn = _pattn.Replace(@"\[变量]", @"[\s\S]*?");
            _pattn = Regex.Replace(_pattn, @"((\\r\\n)|(\\ ))+", @"\s*", RegexOptions.Compiled);
            if (Regex.Match(pattern.TrimEnd(), Regex.Escape(find) + "$", RegexOptions.Compiled).Success)
                _pattn = _pattn.Replace(@"\" + find, @"(?<TARGET>[\s\S]+)");
            else
                _pattn = _pattn.Replace(@"\" + find, @"(?<TARGET>[\s\S]+?)");
            Regex r = new Regex(_pattn, RegexOptions.IgnoreCase | RegexOptions.Compiled);
            Match m = r.Match(input);
            return m;
        }

        public static string GetIP()
        {
            string uip = null;
            if (HttpContext.Current.Request.ServerVariables["HTTP_VIA"] != null) //判断是否有代理
            {
                uip = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
            }
            else
            {
                uip = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString();
            }
            return uip;
        }
        
        /// <summary>
        /// Escape的加密
        /// </summary>
        /// <param name="str"></param>