socket 实现WordPress博客自动发文系列 之 登录

没有时间详细的写文章了，就随便记录并且分享一下。该方法能扩展到秒杀器哦。只是针对不同的网站 需要不同的分析而已。

公司需求以后要能从自己的文章资源平台，选择文章发布到wordpress站群，所以需要一个自动发布文章的小功能。工作之余发布到园子里和大家分享下。

之前尝试用httpwebrequest 对象方式去实现但发现有cookies接收不全的现象，所以改用socket 模拟http post请求去实现，代码写的很乱，只是初步的探索，也参考了很多园子里前辈的代码。小小AD下：
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主要几个方法：

 1 /// <summary>
 2         /// 带上cookies 获取需要登录验证的页面
 3         /// </summary>
 4         /// <param name="url">请求的URL</param>
 5         /// <param name="cookies">cookies字符串</param>
 6         /// <param name="encoding">页面编码</param>
 7         /// <returns></returns>
 8         public string GetPage(string url, string cookies, string encoding)
 9         {
10             Uri URI = new Uri(url);
11             string strHTML = string.Empty;//用来保存获得的HTML代码
12             IPHostEntry gist = Dns.GetHostEntry(URI.Host);//获得当前ＵＲＬ的ＩＰ地址
13             IPAddress ip = gist.AddressList[0];//提取IP地址
14             IPEndPoint ipEnd = new IPEndPoint(ip, 80);//封装IP地址和端口
15             Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//实例化Stock
16             try
17             {
18                 socket.Connect(ipEnd);
19             }//自动循环捕捉连接
20             catch
21             { }
22             string sendString = "GET " + URI.PathAndQuery + " HTTP/1.1\r\n";
23             sendString += "Connection:close\r\n";
24             sendString += "Content-Type: application/x-www-form-urlencoded\r\n";
25             sendString += "Host:" + URI.Host + "\r\n";
26             if (!string.IsNullOrEmpty(cookies))
27                 sendString += "Cookie:" + cookies + "\r\n\r\n";
28             byte[] ms = UTF8Encoding.GetEncoding(encoding).GetBytes(sendString);//将头部转换成byte形式
29             socket.Send(ms);//发送
30             int recv = -1;//定义接受数据长度
31             byte[] data = new byte[1024];//用来保存接收数据
32             do
33             {
34                 recv = socket.Receive(data);
35                 strHTML += Encoding.GetEncoding(encoding).GetString(data, 0, recv);
36             } while (recv != 0);
37             return strHTML;
38         }

socket方式post 登录 之前用httpwebrequest方式 但始终登录不了，原因是cookies接受不全，就改用socket方式 自行处理cookies

 1 /// <summary>
 2         /// 
 3         /// </summary>
 4         /// <param name="postURL">登录地址</param>
 5         /// <param name="postString">发送的字符串</param>
 6         /// <param name="encoding">网页编码</param>
 7         /// <returns></returns>
 8         public string PostData(string postURL,string postString, string encoding)
 9         {
10             string strHTML = "";//用来保存获得的HTML代码
11             Uri URI = new Uri(postURL);
12             string sendString;
13             sendString = "POST {0} HTTP/1.1\r\n";
14             sendString += "Host: {1}\r\n";
15             sendString += "User-Agent:Mozilla/5.0 (Windows NT 6.1; rv:5.0) Gecko/20100101 Firefox/5.0\r\n";
16             sendString += "Content-Type:application/x-www-form-urlencoded\r\n";
17             sendString += "Content-Length:{2}\r\n";
18             sendString += "Connection:close\r\n\r\n";
19             sendString += "{3}\r\n";
20             sendString = string.Format(sendString, URI.PathAndQuery, URI.Host, postString.Length, postString);
21             Byte[] ByteGet = Encoding.GetEncoding(encoding).GetBytes(sendString);
22             IPAddress hostadd = Dns.GetHostEntry(URI.Host).AddressList[0];
23             IPEndPoint EPhost = new IPEndPoint(hostadd, 80);
24             Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
25             s.Connect(EPhost);
26             if (!s.Connected)
27             {
28                 strHTML = "链接主机失败";
29             }
30             s.Send(ByteGet, ByteGet.Length, SocketFlags.None);
31             strHTML = Recv(s, Encoding.GetEncoding(encoding));
32             return strHTML;
33         }

处理cookies以及重定向问题

    /// <summary>
        /// 从返回的源代码中提取cookies 以及301或302跳转
         /// </summary>
         /// <param name="s"></param>
         /// <param name="location"></param>
         /// <returns></returns>
                                                          
        public string GetCookies(string html, out string location)
        {
            StringBuilder sbCookies = new StringBuilder();
            location = string.Empty;
            string[] arr = html.Split(new string[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
            foreach (string str in arr)
            {
                if (str.StartsWith("Set-Cookie: "))
                {
                    int intStart = str.IndexOf(";");
                    string strCookie = str.Substring(12, intStart - 11);
                    sbCookies.Append(strCookie);
                }
                if (str.StartsWith("Location:"))
                {
                    location = str.Substring(10);
                }
            }
            return sbCookies.ToString();
        }    

项目打包下载 vs2010环境

/Files/chjf2008/AutoPostSolution.rar