#region
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using System;
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using System.IO;
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using System.IO.Compression;
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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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using System.Web;
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#endregion
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namespace iWareSda_QQJF.WEBAPI.TestPost
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{
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/// <summary>
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/// Http连接操作帮助类
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/// </summary>
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public class HttpHelper
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{
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#region 预定义方法或者变更
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//默认的编码
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private Encoding encoding = Encoding.Default;
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//Post数据编码
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private Encoding postencoding = Encoding.Default;
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//HttpWebRequest对象用来发起请求
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private HttpWebRequest request = null;
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//获取影响流的数据对象
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private HttpWebResponse response = null;
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/// <summary>
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/// 根据相传入的数据，得到相应页面数据
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/// </summary>
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/// <param name="objhttpitem">参数类对象</param>
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/// <returns>返回HttpResult类型</returns>
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public HttpResult GetHtml(HttpItem objhttpitem)
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{
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//返回参数
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HttpResult result = new HttpResult();
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try
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{
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//准备参数
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SetRequest(objhttpitem);
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}
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catch (Exception ex)
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{
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result = new HttpResult()
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{
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Cookie = "",
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Header = null,
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Html = ex.Message,
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StatusDescription = "配置参数时出错：" + ex.Message
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};
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return result;
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}
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try
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{
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#region 得到请求的response
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using (response = (HttpWebResponse)request.GetResponse())
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{
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result.StatusCode = response.StatusCode;
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result.StatusDescription = response.StatusDescription;
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result.Header = response.Headers;
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if (response.Cookies != null) result.CookieCollection = response.Cookies;
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if (response.Headers["set-cookie"] != null) result.Cookie = response.Headers["set-cookie"];
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MemoryStream _stream = new MemoryStream();
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//GZIIP处理
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if (response.ContentEncoding != null && response.ContentEncoding.Equals("gzip", StringComparison.InvariantCultureIgnoreCase))
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{
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//开始读取流并设置编码方式
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//new GZipStream(response.GetResponseStream(), CompressionMode.Decompress).CopyTo(_stream, 10240);
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//.net4.0以下写法
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_stream = GetMemoryStream(new GZipStream(response.GetResponseStream(), CompressionMode.Decompress));
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}
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else
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{
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//开始读取流并设置编码方式
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//response.GetResponseStream().CopyTo(_stream, 10240);
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//.net4.0以下写法
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_stream = GetMemoryStream(response.GetResponseStream());
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}
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//获取Byte
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byte[] RawResponse = _stream.ToArray();
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_stream.Close();
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//是否返回Byte类型数据
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if (objhttpitem.ResultType == ResultType.Byte) result.ResultByte = RawResponse;
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//从这里开始我们要无视编码了
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if (encoding == null)
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{
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Match meta = Regex.Match(Encoding.Default.GetString(RawResponse), "<meta([^<]*)charset=([^<]*)[\"']", RegexOptions.IgnoreCase);
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string charter = (meta.Groups.Count > 1) ? meta.Groups[2].Value.ToLower() : string.Empty;
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if (charter.Length > 2)
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encoding = Encoding.GetEncoding(charter.Trim().Replace("\"", "").Replace("'", "").Replace(";", "").Replace("iso-8859-1", "gbk"));
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else
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{
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if (string.IsNullOrEmpty(response.CharacterSet)) encoding = Encoding.UTF8;
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else encoding = Encoding.GetEncoding(response.CharacterSet);
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}
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}
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//得到返回的HTML
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result.Html = encoding.GetString(RawResponse);
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}
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#endregion
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}
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catch (WebException ex)
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{
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string responseMessage;
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//这里是在发生异常时返回的错误信息
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response = (HttpWebResponse)ex.Response;
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if (response != null)
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{
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result.StatusCode = response.StatusCode;
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result.StatusDescription = response.StatusDescription + "\r\n" + ex.Message + "";
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}
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if (response != null && response.GetResponseStream() != null)
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{
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StreamReader reader = new StreamReader(response.GetResponseStream());
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responseMessage = reader.ReadToEnd();
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reader.Close();
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}
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else
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{
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responseMessage = ex.Message;
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}
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result.Html = responseMessage;
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}
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catch (Exception ex)
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{
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result.Html = ex.Message;
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}
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if (objhttpitem.IsToLower) result.Html = result.Html.ToLower();
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return result;
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}
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/// <summary>
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/// 4.0以下.net版本取数据使用
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/// </summary>
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/// <param name="streamResponse">流</param>
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private static MemoryStream GetMemoryStream(Stream streamResponse)
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{
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MemoryStream _stream = new MemoryStream();
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int Length = 256;
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Byte[] buffer = new Byte[Length];
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int bytesRead = streamResponse.Read(buffer, 0, Length);
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while (bytesRead > 0)
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{
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_stream.Write(buffer, 0, bytesRead);
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bytesRead = streamResponse.Read(buffer, 0, Length);
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}
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return _stream;
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}
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/// <summary>
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/// 为请求准备参数
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/// </summary>
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///<param name="objhttpItem">参数列表</param>
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private void SetRequest(HttpItem objhttpItem)
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{
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//设置安全协议
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ServicePointManager.SecurityProtocol = objhttpItem.SecurityProtocolType;
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// 验证证书
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SetCer(objhttpItem);
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//设置Header参数
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if (objhttpItem.Header != null && objhttpItem.Header.Count > 0) foreach (string item in objhttpItem.Header.AllKeys)
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{
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request.Headers.Add(item, objhttpItem.Header[item]);
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}
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// 设置代理
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SetProxy(objhttpItem);
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if (objhttpItem.ProtocolVersion != null) request.ProtocolVersion = objhttpItem.ProtocolVersion;
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request.ServicePoint.Expect100Continue = objhttpItem.Expect100Continue;
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//请求方式Get或者Post
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request.Method = objhttpItem.Method;
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request.Timeout = objhttpItem.Timeout;
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request.ReadWriteTimeout = objhttpItem.ReadWriteTimeout;
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//Accept
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request.Accept = objhttpItem.Accept;
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//ContentType返回类型
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request.ContentType = objhttpItem.ContentType;
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//UserAgent客户端的访问类型，包括浏览器版本和操作系统信息
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request.UserAgent = objhttpItem.UserAgent;
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// 编码
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encoding = objhttpItem.Encoding;
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//设置Cookie
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SetCookie(objhttpItem);
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//来源地址
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request.Referer = objhttpItem.Referer;
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//是否执行跳转功能
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request.AllowAutoRedirect = objhttpItem.Allowautoredirect;
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//设置Post数据
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SetPostData(objhttpItem);
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//设置最大连接
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if (objhttpItem.Connectionlimit > 0) request.ServicePoint.ConnectionLimit = objhttpItem.Connectionlimit;
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}
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/// <summary>
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/// 设置证书
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/// </summary>
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/// <param name="objhttpItem"></param>
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private void SetCer(HttpItem objhttpItem)
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{
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if (!string.IsNullOrEmpty(objhttpItem.CerPath))
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{
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//这一句一定要写在创建连接的前面。使用回调的方法进行证书验证。
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ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
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//初始化对像，并设置请求的URL地址
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request = (HttpWebRequest)WebRequest.Create(objhttpItem.URL);
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SetCerList(objhttpItem);
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//将证书添加到请求里
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request.ClientCertificates.Add(new X509Certificate(objhttpItem.CerPath));
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}
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else
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{
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//初始化对像，并设置请求的URL地址
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request = (HttpWebRequest)WebRequest.Create(objhttpItem.URL);
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SetCerList(objhttpItem);
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}
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}
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/// <summary>
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/// 设置多个证书
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/// </summary>
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/// <param name="objhttpItem"></param>
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private void SetCerList(HttpItem objhttpItem)
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{
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if (objhttpItem.ClentCertificates != null && objhttpItem.ClentCertificates.Count > 0)
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{
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foreach (X509Certificate item in objhttpItem.ClentCertificates)
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{
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request.ClientCertificates.Add(item);
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}
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}
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}
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/// <summary>
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/// 设置Cookie
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/// </summary>
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/// <param name="objhttpItem">Http参数</param>
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private void SetCookie(HttpItem objhttpItem)
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{
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if (!string.IsNullOrEmpty(objhttpItem.Cookie))
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//Cookie
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request.Headers[HttpRequestHeader.Cookie] = objhttpItem.Cookie;
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//设置Cookie
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if (objhttpItem.CookieCollection != null)
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{
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request.CookieContainer = new CookieContainer();
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request.CookieContainer.Add(objhttpItem.CookieCollection);
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}
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}
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/// <summary>
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/// 设置Post数据
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/// </summary>
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/// <param name="objhttpItem">Http参数</param>
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private void SetPostData(HttpItem objhttpItem)
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{
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//验证在得到结果时是否有传入数据
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if (request.Method.Trim().ToLower().Contains("post"))
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{
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if (objhttpItem.PostEncoding != null)
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{
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postencoding = objhttpItem.PostEncoding;
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}
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byte[] buffer = null;
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//写入Byte类型
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if (objhttpItem.PostDataType == PostDataType.Byte && objhttpItem.PostdataByte != null && objhttpItem.PostdataByte.Length > 0)
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{
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//验证在得到结果时是否有传入数据
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buffer = objhttpItem.PostdataByte;
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}//写入文件
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else if (objhttpItem.PostDataType == PostDataType.FilePath && !string.IsNullOrEmpty(objhttpItem.Postdata))
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{
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StreamReader r = new StreamReader(objhttpItem.Postdata, postencoding);
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buffer = postencoding.GetBytes(r.ReadToEnd());
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r.Close();
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} //写入字符串
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else if (!string.IsNullOrEmpty(objhttpItem.Postdata))
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{
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buffer = postencoding.GetBytes(objhttpItem.Postdata);
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}
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if (buffer != null)
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{
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request.ContentLength = buffer.Length;
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request.GetRequestStream().Write(buffer, 0, buffer.Length);
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}
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}
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}
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/// <summary>
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/// 设置代理
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/// </summary>
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/// <param name="objhttpItem">参数对象</param>
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private void SetProxy(HttpItem objhttpItem)
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{
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if (!string.IsNullOrEmpty(objhttpItem.ProxyIp))
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{
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//设置代理服务器
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if (objhttpItem.ProxyIp.Contains(":"))
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{
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string[] plist = objhttpItem.ProxyIp.Split(':');
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WebProxy myProxy = new WebProxy(plist[0].Trim(), Convert.ToInt32(plist[1].Trim()));
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//建议连接
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myProxy.Credentials = new NetworkCredential(objhttpItem.ProxyUserName, objhttpItem.ProxyPwd);
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//给当前请求对象
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request.Proxy = myProxy;
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}
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else
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{
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WebProxy myProxy = new WebProxy(objhttpItem.ProxyIp, false);
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//建议连接
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myProxy.Credentials = new NetworkCredential(objhttpItem.ProxyUserName, objhttpItem.ProxyPwd);
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//给当前请求对象
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request.Proxy = myProxy;
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}
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//设置安全凭证
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request.Credentials = CredentialCache.DefaultNetworkCredentials;
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}
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}
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/// <summary>
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/// 回调验证证书问题
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/// </summary>
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/// <param name="sender">流对象</param>
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/// <param name="certificate">证书</param>
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/// <param name="chain">X509Chain</param>
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/// <param name="errors">SslPolicyErrors</param>
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/// <returns>bool</returns>
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public 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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#endregion
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#region 公共方法
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/// <summary>
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/// 根据指定的编码对RUl进行解码
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/// </summary>
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/// <param name="text">要解码的字符串</param>
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/// <param name="encoding">要进行解码的编码方式</param>
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/// <returns></returns>
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public string URLDecode(string text, Encoding encoding)
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{
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return HttpUtility.UrlDecode(text, encoding);
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}
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/// <summary>
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/// 根据指定的编码对URL进行编码
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/// </summary>
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/// <param name="text">要编码的URL</param>
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/// <param name="encoding">要进行编码的编码方式</param>
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/// <returns></returns>
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public string URLEncode(string text, Encoding encoding)
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{
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return HttpUtility.UrlEncode(text, encoding);
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}
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#endregion
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#region Post
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/// <summary>
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/// 向指定 URL Post 数据
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/// </summary>
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/// <param name="url"></param>
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/// <param name="postData"></param>
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/// <returns></returns>
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public string Post(string url, string postData)
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{
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ASCIIEncoding encoding = new ASCIIEncoding();
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//byte[] data = encoding.GetBytes(postData);
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byte[] data = Encoding.UTF8.GetBytes(postData);
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HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url);
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myRequest.Method = "POST";
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myRequest.ContentType = "application/x-www-form-urlencoded;charset=UTF-8";
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myRequest.ContentLength = data.Length;
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Stream newStream = myRequest.GetRequestStream();
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newStream.Write(data, 0, data.Length);
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newStream.Close();
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HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
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StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
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string content = reader.ReadToEnd();
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return content;
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}
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#endregion
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#region Get
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/// <summary>
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/// 向指定 URL Post 数据
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/// </summary>
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/// <param name="url"></param>
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/// <param name="queryStr"></param>
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/// <returns></returns>
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public string Get(string url, string queryStr)
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{
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string _url = url;
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if (!string.IsNullOrEmpty(queryStr))
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_url = string.Format("{0}?{1}", url, queryStr);
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create(_url);
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request.ContentType = "application/x-www-form-urlencoded; charset=Q";
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request.Method = "GET";
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HttpWebResponse response = (HttpWebResponse)request.GetResponse();
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StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
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string content = reader.ReadToEnd();
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reader.Close();
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response.Close();
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return content;
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}
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#endregion
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}
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#region HttpItem
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/// <summary>
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/// Http请求参考类
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/// </summary>
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public class HttpItem
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{
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string _URL = string.Empty;
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/// <summary>
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/// 请求URL必须填写
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/// </summary>
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public string URL
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{
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get { return _URL; }
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set { _URL = value; }
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}
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string _Method = "GET";
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/// <summary>
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/// 请求方式默认为GET方式,当为POST方式时必须设置Postdata的值
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/// </summary>
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public string Method
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{
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get { return _Method; }
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set { _Method = value; }
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}
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int _Timeout = 100000;
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/// <summary>
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/// 默认请求超时时间
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/// </summary>
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public int Timeout
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{
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get { return _Timeout; }
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set { _Timeout = value; }
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}
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int _ReadWriteTimeout = 30000;
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/// <summary>
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/// 默认写入Post数据超时间
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/// </summary>
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public int ReadWriteTimeout
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{
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get { return _ReadWriteTimeout; }
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set { _ReadWriteTimeout = value; }
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}
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string _Accept = "text/html, application/xhtml+xml, */*";
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/// <summary>
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/// 请求标头值 默认为text/html, application/xhtml+xml, */*
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/// </summary>
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public string Accept
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{
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get { return _Accept; }
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set { _Accept = value; }
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}
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string _ContentType = "text/html";
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/// <summary>
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/// 请求返回类型默认 text/html
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/// </summary>
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public string ContentType
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{
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get { return _ContentType; }
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set { _ContentType = value; }
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}
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string _UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)";
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/// <summary>
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/// 客户端访问信息默认Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)
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/// </summary>
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public string UserAgent
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{
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get { return _UserAgent; }
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set { _UserAgent = value; }
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}
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Encoding _Encoding = null;
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/// <summary>
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/// 返回数据编码默认为NUll,可以自动识别,一般为utf-8,gbk,gb2312
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/// </summary>
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public Encoding Encoding
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{
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get { return _Encoding; }
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set { _Encoding = value; }
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}
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private PostDataType _PostDataType = PostDataType.String;
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/// <summary>
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/// Post的数据类型
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/// </summary>
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public PostDataType PostDataType
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{
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get { return _PostDataType; }
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set { _PostDataType = value; }
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}
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string _Postdata = string.Empty;
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/// <summary>
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/// Post请求时要发送的字符串Post数据
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/// </summary>
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public string Postdata
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{
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get { return _Postdata; }
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set { _Postdata = value; }
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}
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private byte[] _PostdataByte = null;
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/// <summary>
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/// Post请求时要发送的Byte类型的Post数据
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/// </summary>
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public byte[] PostdataByte
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{
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get { return _PostdataByte; }
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set { _PostdataByte = value; }
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}
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CookieCollection cookiecollection = null;
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/// <summary>
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/// Cookie对象集合
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/// </summary>
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public CookieCollection CookieCollection
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{
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get { return cookiecollection; }
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set { cookiecollection = value; }
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}
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string _Cookie = string.Empty;
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/// <summary>
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/// 请求时的Cookie
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/// </summary>
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public string Cookie
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{
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get { return _Cookie; }
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set { _Cookie = value; }
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}
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string _Referer = string.Empty;
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/// <summary>
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/// 来源地址，上次访问地址
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/// </summary>
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public string Referer
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{
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get { return _Referer; }
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set { _Referer = value; }
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}
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string _CerPath = string.Empty;
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/// <summary>
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/// 证书绝对路径
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/// </summary>
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public string CerPath
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{
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get { return _CerPath; }
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set { _CerPath = value; }
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}
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private Boolean isToLower = false;
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/// <summary>
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/// 是否设置为全文小写，默认为不转化
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/// </summary>
|
public Boolean IsToLower
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{
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get { return isToLower; }
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set { isToLower = value; }
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}
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private Boolean allowautoredirect = false;
|
/// <summary>
|
/// 支持跳转页面，查询结果将是跳转后的页面，默认是不跳转
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/// </summary>
|
public Boolean Allowautoredirect
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{
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get { return allowautoredirect; }
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set { allowautoredirect = value; }
|
}
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private int connectionlimit = 1024;
|
/// <summary>
|
/// 最大连接数
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/// </summary>
|
public int Connectionlimit
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{
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get { return connectionlimit; }
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set { connectionlimit = value; }
|
}
|
private string proxyusername = string.Empty;
|
/// <summary>
|
/// 代理Proxy 服务器用户名
|
/// </summary>
|
public string ProxyUserName
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{
|
get { return proxyusername; }
|
set { proxyusername = value; }
|
}
|
private string proxypwd = string.Empty;
|
/// <summary>
|
/// 代理 服务器密码
|
/// </summary>
|
public string ProxyPwd
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{
|
get { return proxypwd; }
|
set { proxypwd = value; }
|
}
|
private string proxyip = string.Empty;
|
/// <summary>
|
/// 代理 服务IP
|
/// </summary>
|
public string ProxyIp
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{
|
get { return proxyip; }
|
set { proxyip = value; }
|
}
|
private ResultType resulttype = ResultType.String;
|
/// <summary>
|
/// 设置返回类型String和Byte
|
/// </summary>
|
public ResultType ResultType
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{
|
get { return resulttype; }
|
set { resulttype = value; }
|
}
|
private WebHeaderCollection header = new WebHeaderCollection();
|
/// <summary>
|
/// header对象
|
/// </summary>
|
public WebHeaderCollection Header
|
{
|
get { return header; }
|
set { header = value; }
|
}
|
/// <summary>
|
/// 获取或设置用于请求的 HTTP 版本。返回结果:用于请求的 HTTP 版本。默认为 System.Net.HttpVersion.Version11。
|
/// </summary>
|
public Version ProtocolVersion { get; set; }
|
private Boolean _expect100continue = true;
|
/// <summary>
|
/// 获取或设置一个 System.Boolean 值，该值确定是否使用 100-Continue 行为。如果 POST 请求需要 100-Continue 响应，则为 true；否则为 false。默认值为 true。
|
/// </summary>
|
public Boolean Expect100Continue
|
{
|
get { return _expect100continue; }
|
set { _expect100continue = value; }
|
}
|
/// <summary>
|
/// 设置509证书集合
|
/// </summary>
|
public X509CertificateCollection ClentCertificates { get; set; }
|
/// <summary>
|
/// 指定Schannel安全包支持的安全协议
|
/// </summary>
|
public SecurityProtocolType SecurityProtocolType { get; set; }
|
/// <summary>
|
/// 设置或获取Post参数编码,默认的为Default编码
|
/// </summary>
|
public Encoding PostEncoding { get; set; }
|
}
|
#endregion
|
|
#region HttpResult
|
/// <summary>
|
/// Http返回参数类
|
/// </summary>
|
public class HttpResult
|
{
|
/// <summary>
|
/// Http请求返回的Cookie
|
/// </summary>
|
public string Cookie { get; set; }
|
/// <summary>
|
/// Cookie对象集合
|
/// </summary>
|
public CookieCollection CookieCollection { get; set; }
|
/// <summary>
|
/// 返回的String类型数据 只有ResultType.String时才返回数据，其它情况为空
|
/// </summary>
|
public string Html { get; set; }
|
/// <summary>
|
/// 返回的Byte数组 只有ResultType.Byte时才返回数据，其它情况为空
|
/// </summary>
|
public byte[] ResultByte { get; set; }
|
/// <summary>
|
/// header对象
|
/// </summary>
|
public WebHeaderCollection Header { get; set; }
|
/// <summary>
|
/// 返回状态说明
|
/// </summary>
|
public string StatusDescription { get; set; }
|
/// <summary>
|
/// 返回状态码,默认为OK
|
/// </summary>
|
public HttpStatusCode StatusCode { get; set; }
|
}
|
#endregion
|
|
#region ResultType
|
/// <summary>
|
/// 返回类型
|
/// </summary>
|
public enum ResultType
|
{
|
/// <summary>
|
/// 表示只返回字符串 只有Html有数据
|
/// </summary>
|
String,
|
/// <summary>
|
/// 表示返回字符串和字节流 ResultByte和Html都有数据返回
|
/// </summary>
|
Byte
|
}
|
#endregion
|
|
#region PostDataType
|
/// <summary>
|
/// Post的数据格式默认为string
|
/// </summary>
|
public enum PostDataType
|
{
|
/// <summary>
|
/// 字符串类型，这时编码Encoding可不设置
|
/// </summary>
|
String,
|
/// <summary>
|
/// Byte类型，需要设置PostdataByte参数的值编码Encoding可设置为空
|
/// </summary>
|
Byte,
|
/// <summary>
|
/// 传文件，Postdata必须设置为文件的绝对路径，必须设置Encoding的值
|
/// </summary>
|
FilePath
|
}
|
#endregion
|
}
|
