Elight.Utility/Network/HttpUtils.cs

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using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Web;

namespace Elight.Utility.Network
{
    public class HttpUtils
    {
        public static string UrlDecode(string str)
        {
            return HttpUtility.UrlDecode(str, Encoding.UTF8);
        }

        public static string UrlDecode(string str, Encoding encoding)
        {
            return HttpUtility.UrlDecode(str, encoding);
        }

        public static string UrlEncode(string str)
        {
            return HttpUtility.UrlEncode(str, Encoding.UTF8);
        }
        public static string UrlEncode(string str, Encoding encoding)
        {
            return HttpUtility.UrlEncode(str, encoding);
        }


        private static CookieContainer m_Cookie = new CookieContainer();
        private static readonly string DefaultUserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)";
        /// <summary>  
        /// 创建GET方式的HTTP请求  
        /// </summary>  
        /// <param name="url">请求的URL</param>  
        /// <param name="timeout">请求的超时时间</param>  
        /// <param name="userAgent">请求的客户端浏览器信息，可以为空</param>  
        /// <param name="cookies">随同HTTP请求发送的Cookie信息，如果不需要身份验证可以为空</param>  
        /// <returns></returns>  
        public static HttpWebResponse CreateGetHttpResponse(string url, int? timeout, string userAgent, CookieCollection cookies)
        {
            if (string.IsNullOrEmpty(url))
            {
                throw new ArgumentNullException("url");
            }
            HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
            request.CookieContainer = m_Cookie;
            request.Method = "GET";
            request.UserAgent = DefaultUserAgent;
            if (!string.IsNullOrEmpty(userAgent))
            {
                request.UserAgent = userAgent;
            }
            if (timeout.HasValue)
            {
                request.Timeout = timeout.Value;