/// /// 类说明：HttpHelper类，用来实现Http访问，Post或者Get方式的，直接访问，带Cookie的，带证书的等方式，可以设置代理 /// 重要提示：请不要自行修改本类，如果因为你自己修改后将无法升级到新版本。如果确实有什么问题请到官方网站提建议， /// 我们一定会及时修改 /// 编码日期：2011-09-20 /// 编 码 人：苏飞 /// 联系方式：361983679 /// 官方网址：http://www.sufeinet.com/thread-3-1-1.html /// 修改日期：2014-04-21 /// 版 本 号：1.4.5 /// using System; using System.Collections.Generic; using System.Text; using System.Net; using System.IO; using System.Text.RegularExpressions; using System.IO.Compression; using System.Security.Cryptography.X509Certificates; using System.Net.Security; using System.Drawing; namespace DSWeb.Common.Helper { /// /// Http连接操作帮助类 /// public class HttpHelper { #region 预定义方法或者变更 //默认的编码 private Encoding encoding = Encoding.Default; //Post数据编码 private Encoding postencoding = Encoding.Default; //HttpWebRequest对象用来发起请求 private HttpWebRequest request = null; //获取影响流的数据对象 private HttpWebResponse response = null; /// /// 根据相传入的数据，得到相应页面数据 /// /// 参数类对象 /// 返回HttpResult类型 public HttpResult GetHtml(HttpItem item) { //返回参数 HttpResult result = new HttpResult(); try { //准备参数 SetRequest(item); } catch (Exception ex) { return new HttpResult() { Cookie = string.Empty, Header = null, Html = ex.Message, StatusDescription = "配置参数时出错：" + ex.Message }; } try { #region 得到请求的response using (response = (HttpWebResponse)request.GetResponse()) { result.StatusCode = response.StatusCode; result.StatusDescription = response.StatusDescription; result.Header = response.Headers; if (response.Cookies != null) result.CookieCollection = response.Cookies; if (response.Headers["set-cookie"] != null) result.Cookie = response.Headers["set-cookie"]; byte[] ResponseByte = null; using (MemoryStream _stream = new MemoryStream()) { //GZIIP处理 if (response.ContentEncoding != null && response.ContentEncoding.Equals("gzip", StringComparison.InvariantCultureIgnoreCase)) { //开始读取流并设置编码方式 new GZipStream(response.GetResponseStream(), CompressionMode.Decompress).CopyTo(_stream, 10240); } else { //开始读取流并设置编码方式 response.GetResponseStream().CopyTo(_stream, 10240); } //获取Byte ResponseByte = _stream.ToArray(); } if (ResponseByte != null & ResponseByte.Length > 0) { //是否返回Byte类型数据 if (item.ResultType == ResultType.Byte) result.ResultByte = ResponseByte; //从这里开始我们要无视编码了 if (encoding == null) { Match meta = Regex.Match(Encoding.Default.GetString(ResponseByte), " 1) ? meta.Groups[2].Value.ToLower().Trim() : string.Empty; if (c.Length > 2) { try { if (c.IndexOf(" ") > 0) c = c.Substring(0, c.IndexOf(" ")); encoding = Encoding.GetEncoding(c.Replace("\"", "").Replace("'", "").Replace(";", "").Replace("iso-8859-1", "gbk").Trim()); } catch { if (string.IsNullOrEmpty(response.CharacterSet)) encoding = Encoding.UTF8; else encoding = Encoding.GetEncoding(response.CharacterSet); } } else { if (string.IsNullOrEmpty(response.CharacterSet)) encoding = Encoding.UTF8; else encoding = Encoding.GetEncoding(response.CharacterSet); } } //得到返回的HTML result.Html = encoding.GetString(ResponseByte); } else { //得到返回的HTML result.Html = "本次请求并未返回任何数据"; } } #endregion } catch (WebException ex) { //这里是在发生异常时返回的错误信息 response = (HttpWebResponse)ex.Response; result.Html = ex.Message; if (response != null) { result.StatusCode = response.StatusCode; result.StatusDescription = response.StatusDescription; } } catch (Exception ex) { result.Html = ex.Message; } if (item.IsToLower) result.Html = result.Html.ToLower(); return result; } /// /// 为请求准备参数 /// ///参数列表 private void SetRequest(HttpItem item) { // 验证证书 SetCer(item); //设置Header参数 if (item.Header != null && item.Header.Count > 0) foreach (string key in item.Header.AllKeys) { request.Headers.Add(key, item.Header[key]); } // 设置代理 SetProxy(item); if (item.ProtocolVersion != null) request.ProtocolVersion = item.ProtocolVersion; request.ServicePoint.Expect100Continue = item.Expect100Continue; //请求方式Get或者Post request.Method = item.Method; request.Timeout = item.Timeout; request.KeepAlive = item.KeepAlive; request.ReadWriteTimeout = item.ReadWriteTimeout; if (!string.IsNullOrWhiteSpace(item.Host)) { request.Host = item.Host; } //Accept request.Accept = item.Accept; //ContentType返回类型 request.ContentType = item.ContentType; //UserAgent客户端的访问类型，包括浏览器版本和操作系统信息 request.UserAgent = item.UserAgent; // 编码 encoding = item.Encoding; //设置安全凭证 request.Credentials = item.ICredentials; //设置Cookie SetCookie(item); //来源地址 request.Referer = item.Referer; //是否执行跳转功能 request.AllowAutoRedirect = item.Allowautoredirect; //设置Post数据 SetPostData(item); //设置最大连接 if (item.Connectionlimit > 0) request.ServicePoint.ConnectionLimit = item.Connectionlimit; } /// /// 设置证书 /// /// private void SetCer(HttpItem item) { if (!string.IsNullOrWhiteSpace(item.CerPath)) { //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。 ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(CheckValidationResult); //初始化对像，并设置请求的URL地址 request = (HttpWebRequest)WebRequest.Create(item.URL); SetCerList(item); //将证书添加到请求里 request.ClientCertificates.Add(new X509Certificate(item.CerPath)); } else { //初始化对像，并设置请求的URL地址 request = (HttpWebRequest)WebRequest.Create(item.URL); SetCerList(item); } } /// /// 设置多个证书 /// /// private void SetCerList(HttpItem item) { if (item.ClentCertificates != null && item.ClentCertificates.Count > 0) { foreach (X509Certificate c in item.ClentCertificates) { request.ClientCertificates.Add(c); } } } /// /// 设置Cookie /// /// Http参数 private void SetCookie(HttpItem item) { if (!string.IsNullOrEmpty(item.Cookie)) request.Headers[HttpRequestHeader.Cookie] = item.Cookie; //设置CookieCollection if (item.ResultCookieType == ResultCookieType.CookieCollection) { request.CookieContainer = new CookieContainer(); if (item.CookieCollection != null && item.CookieCollection.Count > 0) request.CookieContainer.Add(item.CookieCollection); } } /// /// 设置Post数据 /// /// Http参数 private void SetPostData(HttpItem item) { //验证在得到结果时是否有传入数据 if (request.Method.Trim().ToLower().Contains("post")) { if (item.PostEncoding != null) { postencoding = item.PostEncoding; } byte[] buffer = null; //写入Byte类型 if (item.PostDataType == PostDataType.Byte && item.PostdataByte != null && item.PostdataByte.Length > 0) { //验证在得到结果时是否有传入数据 buffer = item.PostdataByte; }//写入文件 else if (item.PostDataType == PostDataType.FilePath && !string.IsNullOrWhiteSpace(item.Postdata)) { StreamReader r = new StreamReader(item.Postdata, postencoding); buffer = postencoding.GetBytes(r.ReadToEnd()); r.Close(); } //写入字符串 else if (!string.IsNullOrWhiteSpace(item.Postdata)) { buffer = postencoding.GetBytes(item.Postdata); } if (buffer != null) { request.ContentLength = buffer.Length; request.GetRequestStream().Write(buffer, 0, buffer.Length); } } } /// /// 设置代理 /// /// 参数对象 private void SetProxy(HttpItem item) { bool isIeProxy = false; if (!string.IsNullOrWhiteSpace(item.ProxyIp)) { isIeProxy = item.ProxyIp.ToLower().Contains("ieproxy"); } if (!string.IsNullOrWhiteSpace(item.ProxyIp) && !isIeProxy) { //设置代理服务器 if (item.ProxyIp.Contains(":")) { string[] plist = item.ProxyIp.Split(':'); WebProxy myProxy = new WebProxy(plist[0].Trim(), Convert.ToInt32(plist[1].Trim())); //建议连接 myProxy.Credentials = new NetworkCredential(item.ProxyUserName, item.ProxyPwd); //给当前请求对象 request.Proxy = myProxy; } else { WebProxy myProxy = new WebProxy(item.ProxyIp, false); //建议连接 myProxy.Credentials = new NetworkCredential(item.ProxyUserName, item.ProxyPwd); //给当前请求对象 request.Proxy = myProxy; } } else if (isIeProxy) { //设置为IE代理 } else { request.Proxy = item.WebProxy; } } /// /// 回调验证证书问题 /// /// 流对象 /// 证书 /// X509Chain /// SslPolicyErrors /// bool public bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { return true; } #endregion } /// /// Http请求参考类 /// public class HttpItem { /// /// 请求URL必须填写 /// public string URL { get; set; } string _Method = "GET"; /// /// 请求方式默认为GET方式,当为POST方式时必须设置Postdata的值 /// public string Method { get { return _Method; } set { _Method = value; } } int _Timeout = 100000; /// /// 默认请求超时时间 /// public int Timeout { get { return _Timeout; } set { _Timeout = value; } } int _ReadWriteTimeout = 30000; /// /// 默认写入Post数据超时间 /// public int ReadWriteTimeout { get { return _ReadWriteTimeout; } set { _ReadWriteTimeout = value; } } /// /// 设置Host的标头信息 /// public string Host { get; set; } Boolean _KeepAlive = true; /// /// 获取或设置一个值，该值指示是否与 Internet 资源建立持久性连接默认为true。 /// public Boolean KeepAlive { get { return _KeepAlive; } set { _KeepAlive = value; } } string _Accept = "text/html, application/xhtml+xml, */*"; /// /// 请求标头值 默认为text/html, application/xhtml+xml, */* /// public string Accept { get { return _Accept; } set { _Accept = value; } } string _ContentType = "text/html"; /// /// 请求返回类型默认 text/html /// public string ContentType { get { return _ContentType; } set { _ContentType = value; } } string _UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)"; /// /// 客户端访问信息默认Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0) /// public string UserAgent { get { return _UserAgent; } set { _UserAgent = value; } } /// /// 返回数据编码默认为NUll,可以自动识别,一般为utf-8,gbk,gb2312 /// public Encoding Encoding { get; set; } private PostDataType _PostDataType = PostDataType.String; /// /// Post的数据类型 /// public PostDataType PostDataType { get { return _PostDataType; } set { _PostDataType = value; } } /// /// Post请求时要发送的字符串Post数据 /// public string Postdata { get; set; } /// /// Post请求时要发送的Byte类型的Post数据 /// public byte[] PostdataByte { get; set; } /// /// Cookie对象集合 /// public CookieCollection CookieCollection { get; set; } /// /// 请求时的Cookie /// public string Cookie { get; set; } /// /// 来源地址，上次访问地址 /// public string Referer { get; set; } /// /// 证书绝对路径 /// public string CerPath { get; set; } /// /// 设置代理对象，不想使用IE默认配置就设置为Null，而且不要设置ProxyIp /// public WebProxy WebProxy { get; set; } private Boolean isToLower = false; /// /// 是否设置为全文小写，默认为不转化 /// public Boolean IsToLower { get { return isToLower; } set { isToLower = value; } } private Boolean allowautoredirect = false; /// /// 支持跳转页面，查询结果将是跳转后的页面，默认是不跳转 /// public Boolean Allowautoredirect { get { return allowautoredirect; } set { allowautoredirect = value; } } private int connectionlimit = 1024; /// /// 最大连接数 /// public int Connectionlimit { get { return connectionlimit; } set { connectionlimit = value; } } /// /// 代理Proxy 服务器用户名 /// public string ProxyUserName { get; set; } /// /// 代理 服务器密码 /// public string ProxyPwd { get; set; } /// /// 代理 服务IP,如果要使用IE代理就设置为ieproxy /// public string ProxyIp { get; set; } private ResultType resulttype = ResultType.String; /// /// 设置返回类型String和Byte /// public ResultType ResultType { get { return resulttype; } set { resulttype = value; } } private WebHeaderCollection header = new WebHeaderCollection(); /// /// header对象 /// public WebHeaderCollection Header { get { return header; } set { header = value; } } /// // 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。 /// public Version ProtocolVersion { get; set; } private Boolean _expect100continue = true; /// /// 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。 /// public Boolean Expect100Continue { get { return _expect100continue; } set { _expect100continue = value; } } /// /// 设置509证书集合 /// public X509CertificateCollection ClentCertificates { get; set; } /// /// 设置或获取Post参数编码,默认的为Default编码 /// public Encoding PostEncoding { get; set; } private ResultCookieType _ResultCookieType = ResultCookieType.String; /// /// Cookie返回类型,默认的是只返回字符串类型 /// public ResultCookieType ResultCookieType { get { return _ResultCookieType; } set { _ResultCookieType = value; } } private ICredentials _ICredentials = CredentialCache.DefaultCredentials; /// /// 获取或设置请求的身份验证信息。 /// public ICredentials ICredentials { get { return _ICredentials; } set { _ICredentials = value; } } } /// /// Http返回参数类 /// public class HttpResult { /// /// Http请求返回的Cookie /// public string Cookie { get; set; } /// /// Cookie对象集合 /// public CookieCollection CookieCollection { get; set; } /// /// 返回的String类型数据 只有ResultType.String时才返回数据，其它情况为空 /// public string Html { get; set; } /// /// 返回的Byte数组 只有ResultType.Byte时才返回数据，其它情况为空 /// public byte[] ResultByte { get; set; } /// /// header对象 /// public WebHeaderCollection Header { get; set; } /// /// 返回状态说明 /// public string StatusDescription { get; set; } /// /// 返回状态码,默认为OK /// public HttpStatusCode StatusCode { get; set; } } /// /// 返回类型 /// public enum ResultType { /// /// 表示只返回字符串 只有Html有数据 /// String, /// /// 表示返回字符串和字节流 ResultByte和Html都有数据返回 /// Byte } /// /// Post的数据格式默认为string /// public enum PostDataType { /// /// 字符串类型，这时编码Encoding可不设置 /// String, /// /// Byte类型，需要设置PostdataByte参数的值编码Encoding可设置为空 /// Byte, /// /// 传文件，Postdata必须设置为文件的绝对路径，必须设置Encoding的值 /// FilePath } /// /// Cookie返回类型 /// public enum ResultCookieType { /// /// 只返回字符串类型的Cookie /// String, /// /// CookieCollection格式的Cookie集合同时也返回String类型的cookie /// CookieCollection } public class HttpHelperX2 { private CookieContainer cc; public CookieContainer CC { get { return cc; } set { this.cc = value; } } public HttpHelperX2() { this.cc = new CookieContainer(); } public HttpHelperX2(CookieContainer cc) { this.cc = cc; } /// /// 使用post方式访问目标网页，返回stream二进制流 /// public Stream PostAndGetStream(string targetURL, string formData, string contentType, string referer, bool allowAutoRedirect) { //数据编码 ASCIIEncoding encoding = new ASCIIEncoding(); byte[] data = encoding.GetBytes(formData); //请求目标网页 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(targetURL); request.CookieContainer = cc; request.Method = "POST"; //使用post方式发送数据 request.ContentType = contentType; request.Referer = referer; request.AllowAutoRedirect = allowAutoRedirect; request.ContentLength = data.Length; request.UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)"; //模拟一个UserAgent Stream newStream = request.GetRequestStream(); newStream.Write(data, 0, data.Length); newStream.Close(); //获取网页响应结果 HttpWebResponse response = (HttpWebResponse)request.GetResponse(); cc.Add(response.Cookies); Stream stream = response.GetResponseStream(); return stream; } /// /// 使用post方式访问目标网页，返回字节数组 /// public byte[] PostAndGetByte(string targetURL, string formData, string contentType, string referer, bool allowAutoRedirect) { Stream stream = PostAndGetStream(targetURL, formData, contentType, referer, allowAutoRedirect); byte[] bytes = new byte[stream.Length]; stream.Read(bytes, 0, bytes.Length); stream.Seek(0, SeekOrigin.Begin); return bytes; } /// /// 使用post方式访问目标网页，返回图片 /// public Image PostAndGetBitmap(string targetURL, string formData, string contentType, string referer, bool allowAutoRedirect) { Stream stream = PostAndGetStream(targetURL, formData, contentType, referer, allowAutoRedirect); Image image = Image.FromStream(stream); return image; } /// /// 使用post方式访问目标网页，返回文件 /// public void PostAndGetBitmap(string targetURL, string formData, string contentType, string referer, bool allowAutoRedirect, string fileName) { byte[] bytes = PostAndGetByte(targetURL, formData, contentType, referer, allowAutoRedirect); FileStream fs = new FileStream(fileName, FileMode.Create); BinaryWriter bw = new BinaryWriter(fs); bw.Write(bytes); bw.Close(); fs.Close(); } /// /// 使用post方式访问目标网页，返回html页面 /// public string PostAndGetHtml(string targetURL, string formData, string contentType, string referer, bool allowAutoRedirect, Encoding encoding) { Stream stream = PostAndGetStream(targetURL, formData, contentType, referer, allowAutoRedirect); string html = new StreamReader(stream, encoding).ReadToEnd(); return html; } /// /// 使用get方式访问目标网页，返回stream二进制流 /// public Stream GetAndGetStream(string targetURL, string contentType, string referer, bool allowAutoRedirect) { //请求目标网页 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(targetURL); request.CookieContainer = cc; request.Method = "GET"; //使用get方式发送数据 request.ContentType = contentType; request.Referer = referer; request.AllowAutoRedirect = allowAutoRedirect; request.UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)"; //获取网页响应结果 HttpWebResponse response = (HttpWebResponse)request.GetResponse(); cc.Add(response.Cookies); Stream stream = response.GetResponseStream(); return stream; } /// /// 使用get方式访问目标网页，返回字节数组 /// public byte[] GetAndGetByte(string targetURL, string contentType, string referer, bool allowAutoRedirect) { Stream stream = GetAndGetStream(targetURL, contentType, referer, allowAutoRedirect); byte[] bytes = new byte[stream.Length]; stream.Read(bytes, 0, bytes.Length); stream.Seek(0, SeekOrigin.Begin); return bytes; } /// /// 使用get方式访问目标网页，返回图片 /// public Image GetAndGetBitmap(string targetURL, string contentType, string referer, bool allowAutoRedirect) { Stream stream = GetAndGetStream(targetURL, contentType, referer, true); Image image = Image.FromStream(stream); return image; } /// /// 使用get方式访问目标网页，返回文件 /// public void GetAndGetFile(string targetURL, string contentType, string referer, bool allowAutoRedirect, string fileName) { byte[] bytes = GetAndGetByte(targetURL, contentType, referer, allowAutoRedirect); FileStream fs = new FileStream(fileName, FileMode.Create); BinaryWriter bw = new BinaryWriter(fs); bw.Write(bytes); bw.Close(); fs.Close(); } /// /// 使用get方式访问目标网页，返回html页面 /// public string GetAndGetHtml(string targetURL, string contentType, string referer, bool allowAutoRedirect, Encoding encoding) { Stream stream = GetAndGetStream(targetURL, contentType, referer, allowAutoRedirect); string html = new StreamReader(stream, encoding).ReadToEnd(); return html; } } }