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Editorial Team
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Asked: 2026-06-04T11:13:48+00:00

I’m trying to port an old VB.NET application to an Android application, but due

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I’m trying to port an old VB.NET application to an Android application, but due to my lack of Java experience I am unable to find this one out. I have tried multiple solutions but to no avail.

The idea is basically to do a POST request to ‘http://login.vk.com/’ and getting the response cookies.
If anyone could give me a hint on how to work with cookies on Android I’d appreciate it very much.

Original Code

    Public Sub Login(ByVal Username As String, ByVal Password As String)
    Try

        ' Make request
        Dim cont As New CookieContainer
        Dim request As HttpWebRequest
        request = WebRequest.Create("http://login.vk.com/")
        request.Method = "POST"
        request.CookieContainer = cont

        ' Create POST content and send
        Dim postdata As String = "act=login&success_url=&fail_url=&try_to_login=1&to=&vk=&al_test=3&email=" & HttpUtility.UrlEncode(Username) & "&pass=" & HttpUtility.UrlEncode(Password) & "&expire="
        Dim postbytes() As Byte = System.Text.Encoding.UTF8.GetBytes(postdata)
        request.ContentType = "application/x-www-form-urlencoded"
        request.ContentLength = postbytes.Length
        Dim requestStream As Stream = request.GetRequestStream
        requestStream.Write(postbytes, 0, postbytes.Length)
        requestStream.Close()

        ' Get response and login cookie
        Dim response As HttpWebResponse = request.GetResponse
        Dim cookies As CookieCollection = request.CookieContainer.GetCookies(New Uri("http://pirate.vk.com"))
        For Each myCookie As Cookie In cookies
            If myCookie.Name = "remixsid" Then
                Me.Guid = myCookie.Value
            End If
        Next
        response.Close()

        ' Throw error if cookie not found
        If Not IsLoggedIn Then Throw New Exception("Invalid login guid")

    Catch ex As Exception
        Throw New Exception("Error at custom login", ex)
    End Try
End Sub

The code written so far:

                HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost("http://login.vk.com/");

            try {
                List<NameValuePair> postData = new ArrayList<NameValuePair>(); 
                postData.add(new BasicNameValuePair("act", "login"));
                postData.add(new BasicNameValuePair("success_url", ""));
                postData.add(new BasicNameValuePair("fail_url", ""));
                postData.add(new BasicNameValuePair("try_to_login", "1"));
                postData.add(new BasicNameValuePair("to", ""));
                postData.add(new BasicNameValuePair("vk", ""));
                postData.add(new BasicNameValuePair("al_test", ""));
                postData.add(new BasicNameValuePair("email", URLEncoder.encode(username, "UTF-8")));
                postData.add(new BasicNameValuePair("pass", URLEncoder.encode(password, "UTF-8")));
                postData.add(new BasicNameValuePair("expire", ""));
                httppost.setEntity(new UrlEncodedFormEntity(postData));

                HttpResponse response = httpclient.execute(httppost);

            } catch(Exception e) {

            }
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1 Answer

  1. Editorial Team

    try this way to get cookies in response:

    private static HttpParams params;
params = new BasicHttpParams();
HttpClientParams.setRedirecting(params, false);
HttpClientParams.setCookiePolicy(params, CookiePolicy.BROWSER_COMPATIBILITY);
HttpClient httpclient = new DefaultHttpClient(params);

HttpPost httppost = new HttpPost("http://login.vk.com/");

            try {
                List<NameValuePair> postData = new ArrayList<NameValuePair>(); 
                postData.add(new BasicNameValuePair("act", "login"));
                postData.add(new BasicNameValuePair("success_url", ""));
                postData.add(new BasicNameValuePair("fail_url", ""));
                postData.add(new BasicNameValuePair("try_to_login", "1"));
                postData.add(new BasicNameValuePair("to", ""));
                postData.add(new BasicNameValuePair("vk", ""));
                postData.add(new BasicNameValuePair("al_test", ""));
                postData.add(new BasicNameValuePair("email", URLEncoder.encode(username, "UTF-8")));
                postData.add(new BasicNameValuePair("pass", URLEncoder.encode(password, "UTF-8")));
                postData.add(new BasicNameValuePair("expire", ""));
                httppost.setEntity(new UrlEncodedFormEntity(postData));

                HttpResponse response = httpclient.execute(httppost);
                List<Cookie> cookies = ((DefaultHttpClient)httpclient).getCookieStore().getCookies();
                for(Cookie cookie : cookies){
                Log.i("Cookie", cookie.toString());
             }

            } catch(Exception e) {

            }
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