通过HttpWebRequest实现模拟登陆

1>通过HttpWebRequest模拟登陆

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using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Net.Security; using System.Security.Cryptography.X509Certificates; using System.DirectoryServices.Protocols; using System.ServiceModel.Security; using System.Net; using System.IO; using System.IO.Compression; using System.Text.RegularExpressions;     namespace BaiduCang {     /// <summary>     /// 有关HTTP请求的辅助类     /// </summary>     public class HttpWebResponseUtility     {         private static readonly string DefaultUserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)";         /// <summary>         /// 创建GET方式的HTTP请求         /// </summary>         /// <param name="url">请求的URL</param>         /// <param name="timeout">请求的超时时间</param>         /// <param name="userAgent">请求的客户端浏览器信息，可以为空</param>         /// <param name="cookies">随同HTTP请求发送的Cookie信息，如果不需要身份验证可以为空</param>         /// <returns></returns>         public static HttpWebResponse CreateGetHttpResponse(string url, int? timeout, string userAgent, CookieCollection cookies)         {             if (string.IsNullOrEmpty(url))             {                 throw new ArgumentNullException("url");             }             HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;             request.Method = "GET";             request.UserAgent = DefaultUserAgent;             if (!string.IsNullOrEmpty(userAgent))             {                 request.UserAgent = userAgent;             }             if (timeout.HasValue)             {                 request.Timeout = timeout.Value;             }             if (cookies != null)             {                 request.CookieContainer = new CookieContainer();                 request.CookieContainer.Add(cookies);             }             return request.GetResponse() as HttpWebResponse;         }         /// <summary>         /// 创建POST方式的HTTP请求         /// </summary>         /// <param name="url">请求的URL</param>         /// <param name="parameters">随同请求POST的参数名称及参数值字典</param>         /// <param name="timeout">请求的超时时间</param>         /// <param name="userAgent">请求的客户端浏览器信息，可以为空</param>         /// <param name="requestEncoding">发送HTTP请求时所用的编码</param>         /// <param name="cookies">随同HTTP请求发送的Cookie信息，如果不需要身份验证可以为空</param>         /// <returns></returns>         public static HttpWebResponse CreatePostHttpResponse(string url, IDictionary<string, string> parameters, int? timeout, string userAgent, Encoding requestEncoding, CookieCollection cookies)         {             if (string.IsNullOrEmpty(url))             {                 throw new ArgumentNullException("url");             }             if (requestEncoding == null)             {                 throw new ArgumentNullException("requestEncoding");             }             HttpWebRequest request = null;             //如果是发送HTTPS请求             if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))             {                 ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);                 request = WebRequest.Create(url) as HttpWebRequest;                 request.ProtocolVersion = HttpVersion.Version10;             }             else             {                 request = WebRequest.Create(url) as HttpWebRequest;             }             request.Method = "POST";             request.ContentType = "application/x-www-form-urlencoded";             request.AllowAutoRedirect = false;               if (!string.IsNullOrEmpty(userAgent))             {                 request.UserAgent = userAgent;             }             else             {                 request.UserAgent = DefaultUserAgent;             }               if (timeout.HasValue)             {                 request.Timeout = timeout.Value;             }             if (cookies != null)             {                 request.CookieContainer = new CookieContainer();                 request.CookieContainer.Add(cookies);             }               //如果需要POST数据             if (!(parameters == null || parameters.Count == 0))             {                 StringBuilder buffer = new StringBuilder();                 int i = 0;                 foreach (string key in parameters.Keys)                 {                     if (i > 0)                     {                         buffer.AppendFormat("&{0}={1}", key, parameters[key]);                     }                     else                     {                         buffer.AppendFormat("{0}={1}", key, parameters[key]);                     }                     i++;                 }                 byte[] data = requestEncoding.GetBytes(buffer.ToString());                 using (Stream stream = request.GetRequestStream())                 {                     stream.Write(data, 0, data.Length);                 }             }               return request.GetResponse() as HttpWebResponse;         }           private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)         {             return true; //总是接受         }           /// <summary>         /// 获取post中input的值         /// </summary>         /// <param name="content">返回的html</param>         /// <returns></returns>         public static Dictionary<string, string> GetPostValuesFromContent(string content)         {             Dictionary<string, string> dics = new Dictionary<string, string>();             StringBuilder sbPattern = new StringBuilder();             sbPattern.Append("<input").Append("[^>]*?").Append("/?>");             Regex regex = new Regex(sbPattern.ToString());             MatchCollection matchList = regex.Matches(content);             foreach (Match match in matchList)             {                 string inputValue = match.Groups[0].Value;                   sbPattern = new StringBuilder();                 sbPattern.Append("name=\"").Append("([^\"]*?)").Append("\"");                 regex = new Regex(sbPattern.ToString());                 string name = regex.Match(inputValue).Groups[1].Value;                   sbPattern = new StringBuilder();                 sbPattern.Append("value=\"").Append("([^\"]*?)").Append("\"");                 regex = new Regex(sbPattern.ToString());                 string value = regex.Match(inputValue).Groups[1].Value;                   dics.Add(name, System.Web.HttpContext.Current.Server.UrlEncode(value));             }               return dics;         }             /// <summary>         /// 获取post中input的值         /// </summary>         /// <param name="content">返回的html</param>         /// <returns></returns>         public static Dictionary<string, string> GetPostValuesFromUrl(string url)         {             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);             HttpWebResponse response = (HttpWebResponse)request.GetResponse();             Stream responseStream = response.GetResponseStream();             StreamReader reader = new StreamReader(responseStream, Encoding.UTF8);             string content = reader.ReadToEnd();             reader.Close();             responseStream.Close();               return GetPostValuesFromContent(content);         }             /// <summary>         /// 从Headers的Cookie中获取到系统的cookie         /// </summary>         /// <param name="setCookie">headers中的cookie字符串</param>         /// <param name="cookieName">系统cookie的name</param>         /// <returns></returns>         public static string GetCookieFromSetCookie(string setCookie, string cookieName)         {             StringBuilder sbPattern = new StringBuilder();             sbPattern.AppendFormat("{0}=", cookieName).Append("(.*?)").Append(";");             Regex regex = new Regex(sbPattern.ToString());             Match match = regex.Match(setCookie);             return match.Groups[1].Value;         }           /// <summary>         /// 获取登陆后的跳转页面的html         /// </summary>         /// <param name="cookieName">系统cookie的name</param>         /// <param name="cookieValue">系统cookie的value</param>         /// <param name="redirectUrl">登陆后跳转的url</param>         /// <returns></returns>         public static string GetRedirctUrlHtml(string cookieName, string cookieValue, string redirectUrl, Encoding encoding)         {             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(redirectUrl);             request.Method = "GET";             request.Headers.Add("Cookie", cookieName + "=" + cookieValue);               HttpWebResponse response = (HttpWebResponse)request.GetResponse();             Stream stream = response.GetResponseStream();             StreamReader reader = new StreamReader(stream, encoding);             return reader.ReadToEnd();         }     } }

　　

2>模拟登陆demo,直接从项目中挖出来的，实现的模拟登陆客户的oa系统和erp系统的功能，然后审核代办消息，审核的功能未实现。代码实现的是模拟登陆成功后，获取跳转后的页面的html。代码中实际地址和账户非真实数据。

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using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Text; using System.Net; using BaiduCang; using System.IO; using System.Text.RegularExpressions;   public partial class Default2 : System.Web.UI.Page {     protected void Page_Load(object sender, EventArgs e)     {         //LoginJsjd();         //LoginOA();         LoginErp();     }       public void LoginJsjd()     {         string loginUrl = "http://192.168.0.2/jsjd/login.aspx";         string redirectUrl = "http://192.168.0.2/jsjd/wfi.ashx?act=audit&id=e77ff6a5-4e17-4fb6-b696-82bf5b3c717f&msgid=bc5b6d50-f315-414e-841f-e382ca1a4f8e&comment=&result=Approve";         Encoding encoding = Encoding.GetEncoding("gb2312");         string cookieName = ".ASPXAUTH";           Dictionary<string, string> parameters = new Dictionary<string, string>();         parameters.Add("txtName", "8888");         parameters.Add("txtPassword", "8888");           Response.Write(Login(loginUrl, loginUrl, redirectUrl, cookieName, encoding, parameters));     }       public void LoginOA()     {         string loginUrl = "http://192.168.0.2:8090/dcwork/j_bsp_security_check/up";         string redirectUrl = "http://192.168.0.2:8090/dcwork/processlist.cmd?method=taskinfoportal";         Encoding encoding = Encoding.GetEncoding("gb2312");         string cookieName = "JSESSIONID";           Dictionary<string, string> parameters = new Dictionary<string, string>();         parameters.Add("j_username", "888888");         parameters.Add("j_password", "888888");           Response.Write(Login(loginUrl, loginUrl, redirectUrl, cookieName, encoding, parameters));     }         public void LoginErp()     {         string loginUrl = "http://192.168.0.2:8000/OA_HTML/RF.jsp?function_id=26668&resp_id=-1&resp_appl_id=-1&security_group_id=0&lang_code=ZHS&params=KQ0ueFd3h5ncJDQ0.532EQ&oas=NqL6dDNwywXNVCwleKSBLw";         string portUrl = "http://192.168.0.2:8000/OA_HTML/OA.jsp?page=/oracle/apps/fnd/sso/login/webui/MainLoginPG&_ri=0&_ti=128180147&language_code=ZHS&requestUrl=&oapc=18&oas=zlyIwYnA_a_ouuYU0LTLzw..";         string redirectUrl = "http://192.168.0.2:8000/OA_HTML/OA.jsp?OAFunc=OAHOMEPAGE";         Encoding encoding = Encoding.GetEncoding("gb2312");         string cookieName = "JSESSIONID";           Dictionary<string, string> parameters = new Dictionary<string, string>();         parameters.Add("usernameField", "888888");         parameters.Add("passwordField", "888888");           Response.Write(Login(loginUrl, portUrl, redirectUrl, cookieName, encoding, parameters));     }       /// <summary>     /// 登陆后返回指定页面的html     /// </summary>     /// <param name="loginUrl">登陆页面url</param>     /// <param name="portUrl">登陆提交的post页面url</param>     /// <param name="redirectUrl">登陆成功后跳转的页面url</param>     /// <param name="cookieName">cookie名称</param>     /// <param name="encoding">编码方式</param>     /// <param name="nameAndPassword">用户名和密码对应的文本框的name和值</param>     /// <returns></returns>     public string Login(string loginUrl, string portUrl, string redirectUrl, string cookieName, Encoding encoding, Dictionary<string, string> nameAndPassword)     {         Dictionary<string, string> parameters = HttpWebResponseUtility.GetPostValuesFromUrl(loginUrl);           //给参数字典中的用户名和密码赋值         foreach (var item in nameAndPassword)         {             parameters[item.Key] = item.Value;         }           foreach (var item in parameters)         {             Response.Write(string.Format("{0}:{1}", item.Key, item.Value));             Response.Write("</br>");         }             HttpWebResponse response = HttpWebResponseUtility.CreatePostHttpResponse(          portUrl, parameters, null, null, encoding, null);           string setCookie = response.Headers["Set-Cookie"];         string cookie = HttpWebResponseUtility.GetCookieFromSetCookie(setCookie, cookieName);         return HttpWebResponseUtility.GetRedirctUrlHtml(cookieName, cookie, redirectUrl, encoding);     } }

　　

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