HttpWebRequest Authentication in c#

Question

1.00/5 (1 vote)

See more:

we have http post method in class mention below

C#

public static class Http
        {
            public static byte[] Post(string uri, NameValueCollection pairs)
            {
                byte[] response = null;
                using (WebClient client = new WebClient())
                {
                    response = client.UploadValues(uri, pairs);
                }
            return response;
            }
        }

we are tyring to login but not able to login,
please see the post method and its parameter mention below.

C#

var response = Http.Post("https://ca-test.com/login.shtml", new     NameValueCollection() {
       { "j_account", "XXXX" },
       { "j_username", "XXXX" },
       { "j_password", "XXXX" },
   });

Posted 21-Apr-15 1:19am

PrakashCs.net

Updated 21-Apr-15 1:43am

v2

Add a Solution

Comments

ZurdoDev 21-Apr-15 9:04am

What's the error?

PrakashCs.net 23-Apr-15 0:29am

Hi Sorry for late reply , actually is does not give any error it gives response as login page again, there is one more parameter formhash which generate when we first time hit url and it returns random form hash and that we need to send with post data i.e.
1. formhash, 2. account 3.username 4.password

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Saravanan_babu · Answer 1 · 2015-04-21T20:11:00

Hi,

are you sending credentials in http headers? if its true please follow below code.

public void PostMethod()
{
try
{
string svcCred = "credentials";

string textJSONdata = System.IO.File.ReadAllText(@"D:\data\jsontext.txt");

DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(string));
MemoryStream mem = new MemoryStream();
ser.WriteObject(mem, textJSONdata);
string data = Encoding.UTF8.GetString(mem.ToArray(), 0, (int)mem.Length);

WebClient webClient = new WebClient();
webClient.Headers["Content-type"] = "application/json";
webClient.Headers.Add("Authorization", svcCred);
webClient.Encoding = Encoding.UTF8;
webClient.UploadString(@"http://testURL.com/Service.svc/UpdateGenformQuestions", "POST", data);

}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}

}