C # Use Socket to log on to WordPress source code

1 class loginwp 2 {3 public string PostData (string postURL, string postString, string encoding) 4 {5 string strHTML = ""; // Save the obtained HTML code 6 Uri URI = new Uri (postURL); 7 string sendString; 8 sendString = "POST {0} HTTP/1.1 \ r \ n "; 9 sendString + = "Host: {1} \ r \ n"; 10 sendString + = "User-Agent: Mozilla/5.0 (Windows NT 6.1; rv: 5.0) gecko/20100101 Firefox/5.0 \ r \ n "; 11 sendString + =" Content-Type: applicat Ion/x-www-form-urlencoded \ r \ n "; 12 sendString + =" Content-Length: {2} \ r \ n "; 13 sendString + =" Connection: close \ r \ n "; 14 sendString + =" Cookie: wordpress_test_cookie = WP + Cookie + check \ r \ n "; 15 sendString + = "{3} \ r \ n"; 16 sendString = string. format (sendString, URI. pathAndQuery, URI. host, postString. length, postString); 17 Byte [] ByteGet = Encoding. getEncoding (encoding ). getBytes (sendString); 18 IPAdd Ress hostadd = Dns. getHostEntry (URI. host ). addressList [0]; 19 IPEndPoint EPhost = new IPEndPoint (hostadd, 80); 20 Socket s = new Socket (AddressFamily. interNetwork, SocketType. stream, ProtocolType. tcp); 21 s. connect (EPhost); 22 if (! S. connected) 23 {24 strHTML = "failed to connect to the Host"; 25} 26 s. send (ByteGet, ByteGet. length, SocketFlags. none); 27 strHTML = Recv (s, Encoding. getEncoding (encoding); 28 return strHTML; 29} 30 31 public static String Recv (Socket sock, Encoding encode) 32 {33 Byte [] buffer = new Byte [1024]; 34 StringBuilder sb = new StringBuilder (); 35 36 Thread. sleep (50); // tune 37 Int32 len = sock according to the page response time. receive (buffer); 38 Sb. append (encode. getString (buffer, 0, len); 39 40 while (sock. available> 0) 41 {42 Thread. sleep (300); // You can also fine-tune 43 Array. clear (buffer, 0, buffer. length); 44 len = sock. receive (buffer); 45 sb. append (encode. getString (buffer, 0, len); 46 string ss = encode. getString (buffer, 0, len); 47} 48 sock. close (); 49 return sb. toString (); 50} 51 52 // <summary> 53 // extract cookies from the returned source code and redirect 301 or 302 to 54 /// </Summary> 55 // <param name = "s"> </param> 56 // <param name = "location"> </param> 57 /// <returns> </returns> 58 public string GetCookies (string html, out string location) 59 {60 StringBuilder sbCookies = new StringBuilder (); 61 location = string. empty; 62 string [] arr = html. split (new string [] {"\ r \ n"}, StringSplitOptions. removeEmptyEntries); 63 foreach (string str in arr) 64 {65 if (str. star TsWith ("Set-Cookie:") 66 {67 int intStart = str. indexOf (";"); 68 string strCookie = str. substring (12, intStart-11); 69 sbCookies. append (strCookie); 70} 71 if (str. startsWith ("Location:") 72 {73 location = str. substring (10); 74} 75} 76 return sbCookies. toString (); 77} 78 79 // <summary> 80 // bring cookies to get the page 81 that requires logon verification /// </summary> 82 // <param name = "url "> request URL </param> 83 // <param Name = "cookies"> cookie string </param> 84 // <param name = "encoding"> page Code </param> 85 // <returns> </returns> 86 public string GetPage (string url, string cookies, string encoding) 87 {88 Uri URI = new Uri (url); 89 string strHTML = string. empty; // used to save the obtained HTML code 90 IPHostEntry gist = Dns. getHostEntry (URI. host); // obtain the ip address of the current url 91 IPAddress ip = gist. addressList [0]; // extract IP address 92 IPEndPoint ipEnd = new IPEndPoi Nt (ip, 80); // encapsulate the ip address and port 93 Socket socket = new Socket (AddressFamily. interNetwork, SocketType. stream, ProtocolType. tcp); // instantiate Stock 94 try 95 {96 socket. connect (ipEnd); 97} // Automatic loop capture connection 98 catch 99 {} 100 string sendString = "GET" + URI. pathAndQuery + "HTTP/1.1 \ r \ n"; 101 sendString + = "Connection: close \ r \ n"; 102 sendString + = "Content-Type: application/x-www-form-urlencoded \ r \ n "; 103 sendString + =" Hos T: "+ URI. Host +" \ r \ n "; 104 if (! String. isNullOrEmpty (cookies) 105 sendString + = "Cookie:" + cookies + "\ r \ n"; 106 byte [] MS = UTF8Encoding. getEncoding (encoding ). getBytes (sendString); // convert the header to a byte 107 socket. send (MS); // Send 108 int recv =-1; // define accept data Length 109 byte [] data = new byte [1024]; // used to save the received data 110 do111 {112 recv = socket. receive (data); 113 strHTML + = Encoding. getEncoding (encoding ). getString (data, 0, recv); 114} while (recv! = 0); 115 return strHTML; 116} 117}