C＃ - WebRequest的HTTP POST與曲奇（端口從捲曲腳本）

Question

IBM的RTC REST的API給shell腳本的例子與服務器進行身份驗證：

COOKIES=./cookies.txt 

USER=my_user 
PASSWORD=my_password 
HOST="https://myJazzServer:9092/jazz" 

curl -k -c $COOKIES "$HOST/authenticated/identity" 

curl -k -L -b $COOKIES -c $COOKIES -d j_username=$USER -d j_password=$PASSWORD "$HOST/authenticated/j_security_check" 

這完美的作品，但我需要驗證與服務器使用C＃。

到目前爲止，我有以下的，但它不工作（返回授權失敗頁）：

CookieContainer _cookie; 

    public string _RTC() 
    { 
     HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://myJazzServer.com:9092/jazz/authenticated/identity"); 
     if (_cookie == null) 
     { 
      _cookie = new CookieContainer(); 
     } 
     string a; 
     request.CookieContainer = _cookie; 
     using (var response = request.GetResponse()) 
     { 
      using (StreamReader sr = new StreamReader(response.GetResponseStream())) 
      { 
       a = sr.ReadToEnd(); 
      } 
     } 




     byte[] data = (new ASCIIEncoding()).GetBytes("j_username=myUser&j_password=MyPass"); 

     request = (HttpWebRequest)WebRequest.Create("https://myJazzServer.com:9092/jazz/authenticated/j_security_check"); 

     request.Method = "POST"; 
     request.ContentType = "text/html"; 
     request.ContentLength = data.Length; 
     request.CookieContainer = _cookie; 
     Stream reqStream = request.GetRequestStream(); 
     reqStream.Write(data,0,data.Length); 

     string b; 

     using (var response = request.GetResponse()) 
     { 
      using (var reader = new StreamReader(response.GetResponseStream())) 
      { 
       b = reader.ReadToEnd(); 
      } 
     } 
    } 

Answer 1

我建議你嘗試以下方法：

public class WebClientEx : WebClient 
{ 
    private CookieContainer _cookieContainer = new CookieContainer(); 

    protected override WebRequest GetWebRequest(Uri address) 
    { 
     WebRequest request = base.GetWebRequest(address); 
     if (request is HttpWebRequest) 
     { 
      (request as HttpWebRequest).CookieContainer = _cookieContainer; 
     } 
     return request; 
    } 
} 

class Program 
{ 
    static void Main() 
    { 
     using (var client = new WebClientEx()) 
     { 
      var response1 = client.DownloadString("https://myJazzServer.com:9092/jazz/authenticated/identity"); 

      var data = new NameValueCollection 
      { 
       { "j_username", "myUser" }, 
       { "j_password", "MyPass" }, 
      }; 
      var response2 = client.UploadValues("https://myJazzServer.com:9092/jazz/authenticated/j_security_check", data); 
      Console.WriteLine(Encoding.Default.GetString(response2)); 
     } 
    } 
} 

而且簡化調試你可以通過把它放在你的app.config中激活跟蹤：

<configuration> 

    <system.diagnostics> 
    <sources> 
     <source name="System.Net.Sockets" tracemode="protocolonly"> 
     <listeners> 
      <add name="System.Net.Sockets" type="System.Diagnostics.TextWriterTraceListener" initializeData="network.log" /> 
     </listeners> 
     </source> 
    </sources> 

    <switches> 
     <add name="System.Net.Sockets" value="Verbose"/> 
    </switches> 

    <trace autoflush="true" /> 
    </system.diagnostics> 
</configuration> 

這將創建網絡活動的詳細日誌文件，可能會簡化調試。

Answer 2

這裏是另一種方法，如果你想使用HttpWebResponse/HttpWebRequest：

public static HttpWebResponse requestSecureDocument(HttpWebRequest _request, string _rtcServerURL, string _userName, string _password) 
{ 
    //FormBasedAuth Step1: Request the resource and clone the request to be used later 
    HttpWebRequest _requestClone = WebRequestExtensions.CloneRequest(_request, _request.RequestUri); 
    //(HttpWebRequest)WebRequest.Create(request.RequestUri); 

    //store the response in _docResponse variable 
    HttpWebResponse _docResponse = (HttpWebResponse)_request.GetResponse(); 

    //HttpStatusCode.OK indicates that the request succeeded and that the requested information is in the response. 
    if (_docResponse.StatusCode == HttpStatusCode.OK) 
    { 
     //X-com-ibm-team-repository-web-auth-msg header signifies form based authentication is being used 
     string _rtcAuthHeader = _docResponse.Headers["X-com-ibm-team-repository-web-auth-msg"]; 
     if (_rtcAuthHeader != null && _rtcAuthHeader.Equals("authrequired")) 
     { 
      _docResponse.GetResponseStream().Flush(); 
      _docResponse.Close(); 

      //Prepare form for authentication as _rtcAuthHeader = authrequired 
      HttpWebRequest _formPost = (HttpWebRequest)WebRequest.Create(_rtcServerURL + "/j_security_check"); 
      _formPost.Method = "POST"; 
      _formPost.Timeout = 30000; 
      _formPost.CookieContainer = _request.CookieContainer; 
      _formPost.Accept = "text/xml"; 
      _formPost.ContentType = "application/x-www-form-urlencoded"; 

      String _authString = "j_username=" + _userName + "&j_password=" + _password; 
      //create authentication string 
      Byte[] _outBuffer = Encoding.UTF8.GetBytes(_authString); //store in byte buffer 
      _formPost.ContentLength = _outBuffer.Length; 
      Stream _str = _formPost.GetRequestStream(); 
      _str.Write(_outBuffer, 0, _outBuffer.Length); //update form 
      _str.Close(); 

      //FormBasedAuth Step2:submit the login form and get the response from the server 
      HttpWebResponse _formResponse = (HttpWebResponse)_formPost.GetResponse(); 

      _rtcAuthHeader = _formResponse.Headers["X-com-ibm-team-repository-web-auth-msg"]; 
      //check if authentication has failed 
      if (_rtcAuthHeader != null && _rtcAuthHeader.Equals("authfailed")) 
      { 
       //authentication failed. You can write code to handle the authentication failure. 
       //if (DEBUG) Console.WriteLine("Authentication Failure"); 
      } 
      else 
      { 
       //login successful 
       _formResponse.GetResponseStream().Flush(); 
       _formResponse.Close(); 
       //FormBasedAuth Step3: Resend the request for the protected resource. 
       //if (DEBUG) Console.WriteLine(">> Response " + request.RequestUri); 
       return (HttpWebResponse)_requestClone.GetResponse(); 
      } 
     } 
    } 
    //already authenticated return original response_docResponse 
    return _docResponse; 
} 

你可以調用這個函數在你的代碼 -

string _serverURL = https://localhost:9443/ccm; 
string _resourceURL = "https://localhost:9443/ccm/rootservices"; 

string mediatype = "application/xml"; 
string username = "username";          
string password = "password"; 
try 
{ 
    CookieContainer _cookies = new CookieContainer();//create cookie container 
    HttpWebRequest documentGet = (HttpWebRequest)WebRequest.Create(_resourceURL); 
    documentGet.Method = "GET"; //method 
    documentGet.CookieContainer = _cookies; //set container for HttpWebRequest 
    documentGet.Accept = mediatype; 
    documentGet.Headers.Set("OSLC-Core-Version", "3.0"); //for RTC 3.0.1.2 
    documentGet.Timeout = 300000; 
    HttpWebResponse response = requestSecureDocument(documentGet, _serverURL, username, password); 

    if (response.StatusCode != HttpStatusCode.OK) 
    { 
     Console.WriteLine(" Error: " + response.StatusDescription); 
     response.Close(); 
    } 
} 
catch (Exception ex) 
{ 
} 

你可以閱讀更多at my blog。