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+using System;
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+using System.Collections.Generic;
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+using System.IO;
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+using System.Linq;
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+using System.Net;
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+using System.Net.Security;
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+using System.Security.Cryptography.X509Certificates;
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+using System.Text;
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+using System.Text.RegularExpressions;
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+
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+namespace TimedUpload
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+{
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+ /// <summary>
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+ /// Web操作
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+ /// </summary>
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+ public static class WebHelper
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+ {
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+ #region Host(获取主机名)
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+
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+ /// <summary>
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+ /// 获取主机名,即域名,
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+ /// 范例:用户输入网址http://www.a.com/b.htm?a=1&b=2,
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+ /// 返回值为: www.a.com
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+ /// </summary>
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+ //public static string Host
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+ //{
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+ // get
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+ // {
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+ // return HttpContext.Current.Request.Url.Host;
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+ // }
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+ //}
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+ #endregion
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+
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+ #region HttpWebRequest(请求网络资源)
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+
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+ /// <summary>
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+ /// 请求网络资源,返回响应的文本
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+ /// </summary>
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+ /// <param name="url">网络资源地址</param>
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+ public static string HttpWebRequest(string url)
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+ {
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+ return HttpWebRequest(url, string.Empty, Encoding.GetEncoding("utf-8"));
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+ }
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+
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+ /// <summary>
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+ /// 请求网络资源,返回响应的文本
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+ /// </summary>
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+ /// <param name="url">网络资源Url地址</param>
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+ /// <param name="parameters">提交的参数,格式:参数1=参数值1&参数2=参数值2</param>
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+ public static string HttpWebRequest(string url, string parameters, String mehtod)
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+ {
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+ return HttpWebRequest(url, parameters, Encoding.GetEncoding("utf-8"), mehtod);
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+ }
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+
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+ /// <summary>
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+ /// 请求网络资源,返回响应的文本
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+ /// </summary>
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+ /// <param name="url">网络资源Url地址</param>
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+ /// <param name="parameters">提交的参数,格式:参数1=参数值1&参数2=参数值2</param>
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+ public static string HttpWebRequest(string url, string parameters, String mehtod, string contentType)
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+ {
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+ return HttpWebRequest(url, parameters, Encoding.GetEncoding("utf-8"), mehtod, contentType);
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+ }
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+
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+ /// <summary>
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+ /// 请求网络资源,返回响应的文本
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+ /// </summary>
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+ /// <param name="url">网络资源Url地址</param>
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+ /// <param name="parameters"></param>
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+ public static string HttpWebRequest(string url, string parameters, string contentType, string Authorization, string app_key)
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+ {
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+ return HttpWebRequest(url, parameters, Encoding.GetEncoding("utf-8"), "POST", contentType, Authorization, app_key);
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+ }
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+
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+ /// <summary>
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+ /// 请求网络资源,返回响应的文本
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+ /// </summary>
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+ /// <param name="url">网络资源Url地址</param>
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+ /// <param name="parameters"></param>
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+ public static string HttpWebRequest(string url, string parameters, string mehtod, string contentType, string Authorization, string app_key)
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+ {
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+ return HttpWebRequest(url, parameters, Encoding.GetEncoding("utf-8"), mehtod, contentType, Authorization, app_key);
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+ }
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+
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+ /// <summary>
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+ /// 请求网络资源,返回响应的文本
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+ /// </summary>
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+ /// <param name="url">网络资源Url地址</param>
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+ /// <param name="parameters">提交的参数</param>
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+ /// <param name="requestBody">提交的requestBody参数json格式</param>
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+ public static string HttpWebRequest(string url, Dictionary<string, string> parameters,string requestBody)
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+ {
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+ return HttpWebRequest(url, null, parameters, requestBody);
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+ }
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+
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+ /// <summary>
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+ /// 请求网络资源,返回响应的文本
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+ /// </summary>
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+ /// <param name="url">网络资源地址</param>
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+ /// <param name="parameters">提交的参数,格式:参数1=参数值1&参数2=参数值2</param>
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+ /// <param name="encoding">字符编码</param>
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+ /// <param name="isPost">是否Post提交</param>
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+ /// <param name="contentType">内容类型</param>
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+ /// <param name="cookie">Cookie容器</param>
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+ /// <param name="timeout">超时时间</param>
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+ public static string HttpWebRequest(string url, string parameters, Encoding encoding, string mehtod = "POST",
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+ string contentType = "application/x-www-form-urlencoded", string Authorization = null, string app_key = null, CookieContainer cookie = null, int timeout = 120000)
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+ {
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+ HttpWebRequest request = null;
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+ try
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+ {
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+ if (mehtod == "GET")
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+ {
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+ request = WebRequest.Create(url + (parameters == "" ? "" : "?") + parameters) as HttpWebRequest;
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+ }
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+ else
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+ {
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+ request = WebRequest.Create(url) as HttpWebRequest;
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+ }
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+
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+ request.Timeout = timeout;
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+ if (!string.IsNullOrEmpty(Authorization))
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+ {
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+ request.Headers["Authorization"] = Authorization;
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+ }
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+ if (!string.IsNullOrEmpty(app_key))
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+ {
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+ request.Headers["app_key"] = app_key;
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+ }
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+ request.Headers["AppId"] = Constants.AppId;
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+ request.CookieContainer = cookie;
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+ request.ContentType = contentType;
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+ request.Method = mehtod;
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+
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+ if (mehtod == "POST")
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+ {
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+ byte[] postData = encoding.GetBytes(parameters);
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+ request.ContentType = contentType;
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+ request.ContentLength = postData.Length;
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+ using (Stream stream = request.GetRequestStream())
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+ {
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+ stream.Write(postData, 0, postData.Length);
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+ }
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+ }
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+ else if(mehtod == "PUT")
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+ {
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+ using (StreamWriter requestStream = new StreamWriter(request.GetRequestStream()))
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+ {
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+ requestStream.Write(parameters);
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+ }
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+ }
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+ else if (mehtod == "GET")
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+ {
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+
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+ request.ContentType = "text/html;charset=UTF-8";
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+ }
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+
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+ var response = (HttpWebResponse)request.GetResponse();
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+ string result;
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+ using (Stream stream = response.GetResponseStream())
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+ {
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+ if (stream == null)
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+ return string.Empty;
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+ using (var reader = new StreamReader(stream, encoding))
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+ {
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+ result = reader.ReadToEnd();
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+ }
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+ }
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+ return result;
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+ }
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+ catch (Exception ex)
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+ {
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+ throw ex;
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+ }
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+ }
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+
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+ /// <summary>
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+ /// 有Request Paras和Request Body的接口
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+ /// </summary>
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+ /// <param name="baseUrl"></param>
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+ /// <param name="headers"></param>
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+ /// <param name="urlParas"></param>
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+ /// <param name="requestBody"></param>
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+ /// <returns></returns>
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+ public static string HttpWebRequest(string baseUrl,Dictionary<string, string> headers,Dictionary<string, string> urlParas,string requestBody = null,int timeout = 120000)
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+ {
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+ string result ;
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+ try
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+ {
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+ var apiUrl = baseUrl;
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+
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+ if (urlParas != null)
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+ {
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+ foreach (var p in urlParas)
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+ {
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+ if (apiUrl.IndexOf("{" + p.Key + "}") > -1)
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+ {
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+ apiUrl = apiUrl.Replace("{" + p.Key + "}", p.Value);
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+ }
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+ else
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+ {
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+ apiUrl += string.Format("{0}{1}={2}", apiUrl.Contains("?") ? "&" : "?", p.Key, p.Value);
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+ }
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+ }
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+ }
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+
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+ var req = (HttpWebRequest)WebRequest.Create(apiUrl);
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+ req.Method = "POST";
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+ req.ContentType = "application/json";
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+ req.Timeout = timeout;
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+ if (!String.IsNullOrEmpty(requestBody))
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+ {
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+ using (var postStream = new StreamWriter(req.GetRequestStream()))
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+ {
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+ postStream.Write(requestBody);
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+ }
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+ }
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+
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+ if (headers != null)
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+ {
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+ if (headers.Keys.Any(p => p.ToLower() == "content-type"))
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+ req.ContentType = headers.SingleOrDefault(p => p.Key.ToLower() == "content-type").Value;
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+ if (headers.Keys.Any(p => p.ToLower() == "accept"))
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+ req.Accept = headers.SingleOrDefault(p => p.Key.ToLower() == "accept").Value;
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+ }
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+
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+ var response = (HttpWebResponse)req.GetResponse();
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+
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+ using (Stream stream = response.GetResponseStream())
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+ {
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+ if (stream == null)
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+ {
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+ result = string.Empty;
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+ }
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+ else
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+ {
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+ using (StreamReader reader = new StreamReader(stream, Encoding.GetEncoding("UTF-8")))
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+ {
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+ result = reader.ReadToEnd();
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+ }
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+ }
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+
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+ }
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+ }
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+ catch (Exception ex)
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+ {
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+ throw ex;
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+ }
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+ return result;
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+ }
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+
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+
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+ private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
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+ {
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+ return true;
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+ }
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+ private static X509Certificate2 GetSentosaCertificate()
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+ {
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+ X509Store userCaStore = new X509Store(StoreName.My, StoreLocation.LocalMachine);
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+ try
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+ {
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+ userCaStore.Open(OpenFlags.ReadOnly);
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+ X509Certificate2Collection certificatesInStore = userCaStore.Certificates;
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+ X509Certificate2Collection findResult = certificatesInStore.Find(X509FindType.FindBySubjectName, "server", true);
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+ X509Certificate2 clientCertificate = null;
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+ if (findResult.Count == 1)
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+ {
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+ clientCertificate = findResult[0];
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+ }
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+ else
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+ {
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+ throw new Exception("Unable to locate the correct client certificate.");
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+ }
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+ return clientCertificate;
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+ }
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+ catch
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+ {
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+ throw;
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+ }
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+ finally
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+ {
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+ userCaStore.Close();
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+ }
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+ }
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+ #endregion
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+
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+ #region 去除HTML标记
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+ /// <summary>
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+ /// 去除HTML标记
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+ /// </summary>
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+ /// <param name="NoHTML">包括HTML的源码 </param>
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+ /// <returns>已经去除后的文字</returns>
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+ //public static string NoHtml(string Htmlstring)
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+ //{
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+ // //删除脚本
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+ // Htmlstring = Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase);
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+ // //删除HTML
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+ // Htmlstring = Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"([\r\n])[\s]+", "", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"-->", "", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"<!--.*", "", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"&(quot|#34);", "\"", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"&(amp|#38);", "&", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"&(lt|#60);", "<", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"&(gt|#62);", ">", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"&(iexcl|#161);", "\xa1", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"&(cent|#162);", "\xa2", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"&(pound|#163);", "\xa3", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "\xa9", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);", "", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"…", "", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"—", "", RegexOptions.IgnoreCase);
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+ // Htmlstring = Regex.Replace(Htmlstring, @"“", "", RegexOptions.IgnoreCase);
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+ // Htmlstring.Replace("<", "");
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+ // Htmlstring = Regex.Replace(Htmlstring, @"”", "", RegexOptions.IgnoreCase);
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+ // Htmlstring.Replace(">", "");
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+ // Htmlstring.Replace("\r\n", "");
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+ // Htmlstring = HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();
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+ // return Htmlstring;
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+
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+ //}
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+ #endregion
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+
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+ #region 格式化文本(防止SQL注入)
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+ /// <summary>
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+ /// 格式化文本(防止SQL注入)
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+ /// </summary>
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+ /// <param name="str"></param>
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+ /// <returns></returns>
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+ public static string Formatstr(string html)
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+ {
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+ System.Text.RegularExpressions.Regex regex1 = new System.Text.RegularExpressions.Regex(@"<script[\s\S]+</script *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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+ System.Text.RegularExpressions.Regex regex2 = new System.Text.RegularExpressions.Regex(@" href *= *[\s\S]*script *:", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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+ System.Text.RegularExpressions.Regex regex3 = new System.Text.RegularExpressions.Regex(@" on[\s\S]*=", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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+ System.Text.RegularExpressions.Regex regex4 = new System.Text.RegularExpressions.Regex(@"<iframe[\s\S]+</iframe *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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+ System.Text.RegularExpressions.Regex regex5 = new System.Text.RegularExpressions.Regex(@"<frameset[\s\S]+</frameset *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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+ System.Text.RegularExpressions.Regex regex10 = new System.Text.RegularExpressions.Regex(@"select", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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+ System.Text.RegularExpressions.Regex regex11 = new System.Text.RegularExpressions.Regex(@"update", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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+ System.Text.RegularExpressions.Regex regex12 = new System.Text.RegularExpressions.Regex(@"delete", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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+ html = regex1.Replace(html, ""); //过滤<script></script>标记
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+ html = regex2.Replace(html, ""); //过滤href=javascript: (<A>) 属性
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+ html = regex3.Replace(html, " _disibledevent="); //过滤其它控件的on...事件
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+ html = regex4.Replace(html, ""); //过滤iframe
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+ html = regex10.Replace(html, "s_elect");
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+ html = regex11.Replace(html, "u_pudate");
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+ html = regex12.Replace(html, "d_elete");
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+ html = html.Replace("'", "’");
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+ html = html.Replace(" ", " ");
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+ return html;
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+ }
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+ #endregion
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+ }
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+}
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