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Steam authorization

I'm trying to get html code of authorizated steam page, but I can't log in.
My code is
public string tryLogin(string EXP, string MOD, string TIME)
{
var rsa = new RSA();
string encryptedPass;
rsa.Exponent = EXP;
rsa.Modulus = MOD;
encryptedPass = rsa.Encrypt(Pass);
string reqString = "username=kasyjack&password=" + encryptedPass + "&emailauth=&kasyjackfriendlyname=&captchagid=&captcha_text=&emailsteamid=&rsatimestamp=" + TIME + "&remember_login=false";
byte[] requestData = Encoding.UTF8.GetBytes(reqString);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://store.steampowered.com/login/dologin/");
request.ContentType = "application/x-www-form-urlencoded; charset=UTF-8";
request.ContentLength = requestData.Length;
request.Host = "store.steampowered.com";
request.Method = "POST";
request.UserAgent = Http.ChromeUserAgent();
request.CookieContainer = _CookieCont;
using (Stream st = request.GetRequestStream())
st.Write(requestData, 0, requestData.Length);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader sr = new StreamReader(response.GetResponseStream());
string RSAR = sr.ReadToEnd();
return RSAR;
}
but response message is
{"success":false,"requires_twofactor":false,"clear_password_field":true,"captcha_needed":false,"captcha_gid":-1,"message":"Incorrect login."}
So does anyone know, what's wrong with login? Need your help.

SteamBot repository on GitHub has a working example on how to login to Steam via their website: link to method.
Here is a diagram explaining the whole process(made by me):

Testing multiple parameters web api c# - fiddler

I need help.
I have a method: PostCustomer
HttpResponseMessage PostCustomer([FromBody] CustomerRec Logs, [FromBody] Customer customer)
Now my problem is how will I able to test this through fiddler
I know I need to call for example:
"//api/customer/PostCustomer"
But how will I pass parameters on this?
I'm testing this using fiddler.

I'm not sure if you are asking how to build the url request (passing the parameters for your method through url)
If that's it, it should be like this
api/customer/PostCustomer/?FirstParameter=Example&SecondParemeter=Example2
If you mean the request itself
string postData = string.Format("?FirstParameter=" + txt_First.Text + "&SecondParemeter=" + txt_Last.Text);
byte[] data = Encoding.UTF8.GetBytes(postData);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("..../api/customer/PostCustomer"/" + postData);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.Accept = "application/json";
request.ContentLength = data.Length;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(data, 0, data.Length);
}
try
{
using (WebResponse response = request.GetResponse())
{
var responseValue = string.Empty;
// grab the response
using (var responseStream = response.GetResponseStream())
{
using (var reader = new StreamReader(responseStream))
{
responseValue = reader.ReadToEnd(); // read the full response
}
}
if (responseValue != "")
{
//Do something here if response is not empty
}
}
}
catch (WebException ex)
{
// Handle error
}
PS: Can't comment on post because it asks for 50+ reputation...

Get access token from google oauth from code

i used following code to get the access token from code as below
String code = HttpContext.Current.Request["code"];
string redirecturl = HttpContext.Current.Request["url"];
string Url = "https://accounts.google.com/o/oauth2/token";
string grant_type = "authorization_code";
string redirect_uri_encode = UrlEncodeForGoogle(url);
string data = "code={0}&client_id={1}&client_secret={2}&redirect_uri={3}&grant_type={4}&access_type={5}";
HttpWebRequest request = HttpWebRequest.Create(Url) as HttpWebRequest;
string result = null;
request.Method = "POST";
request.KeepAlive = true;
request.ContentType = "application/x-www-form-urlencoded";
string param = string.Format(data, code,configurationInfo.oauthclientid , configurationInfo.oauthclientsecretid, redirect_uri_encode, grant_type, "offline");
var bs = Encoding.UTF8.GetBytes(param);
using (Stream reqStream = request.GetRequestStream())
{
reqStream.Write(bs, 0, bs.Length);
}
using (WebResponse response = request.GetResponse())
{
var sr = new StreamReader(response.GetResponseStream());
result = sr.ReadToEnd();
sr.Close();
}
i am getting response as
The remote server returned an error: (400) Bad Request.
i do not know where i went wrong
waiting for your valuable comments

Google also provides a higher level library for accessing its services. I find it makes it much easier to work with its APIs.
http://code.google.com/p/google-api-dotnet-client/

send xml file to handler using http-post

protected void UploadFile(object sender, EventArgs e)
{
if (fileUpload.HasFile)
{
if (fileUpload.PostedFile.ContentType == "text/xml")
{
Stream inputstream = fileUpload.PostedFile.InputStream;
byte[] streamAsBytes = (ConvertStreamToByteArray(inputstream));
string stringToSend = BitConverter.ToString(streamAsBytes);
xmlstream.Value = stringToSend;
sendXML.Visible = true;
infoLabel.Text = string.Empty;
/*
string path = Server.MapPath("GenericHandler.ashx");
WebClient wc = new WebClient();
wc.UploadFile(path,"POST", fileUpload.PostedFile);
Something like this maybe? But is there any way to do it without saving the file? */
}
else
{
infoLabel.Text = "Please select an XML file";
sendXML.Visible = false;
}
}
}
This is my current code. The xml gets saved in a hidden field as a hex string and sent via jquery ajax. But it would be much better to send the file itself and process it in the handler. Is that possible?

Try the following code, i haven't tested it but it should work, instead of string pass the byte[] to the method
private string PostData(string url, byte[] postData)
{
HttpWebRequest request = null;
Uri uri = new Uri(url);
request = (HttpWebRequest)WebRequest.Create(uri);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = postData.Length;
using (Stream writeStream = request.GetRequestStream())
{
writeStream.Write(postData, 0, postData.Length);
}
string result = string.Empty;
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
using (Stream responseStream = response.GetResponseStream())
{
using (StreamReader readStream = new StreamReader(responseStream, Encoding.UTF8))
{
result = readStream.ReadToEnd();
}
}
}
return result;
}
Found the code here at Http Post in C#

Yes, you can create a HttpWebRequest, set it's Method to POST (if that's what you need) and then create a form field in the request with your file data. You will need to understand a little bit about how HTTP requests work and how to properly create that form field in the request, but it's doable (and not overly difficult).

c# http Post not getting anything in webresponse

Here's my code for Request and Response.
System.IO.MemoryStream xmlStream = null;
HttpWebRequest HttpReq = (HttpWebRequest)WebRequest.Create(url);
xmlStream = new System.IO.MemoryStream(System.Text.Encoding.UTF8.GetBytes(format));
byte[] buf2 = xmlStream.ToArray();
System.Text.UTF8Encoding UTF8Enc = new System.Text.UTF8Encoding();
string s = UTF8Enc.GetString(buf2);
string sPost = "XMLData=" + System.Web.HttpUtility.UrlDecode(s);
byte[] bPostData = UTF8Enc.GetBytes(sPost);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.ContentType = "application/x-www-form-urlencoded";
HttpReq.Timeout = 30000;
request.Method = "POST";
request.KeepAlive = true;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(bPostData, 0, bPostData.Length);
requestStream.Close();
}
string responseString = "";
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
using (StreamReader sr = new StreamReader(response.GetResponseStream()))
{
responseString = sr.ReadToEnd();
}
No part of this code crashes. The "format" string is the one with XML in it. By the end when you try to see what's in the responseString, it's an empty string. I am supposed to see the XML sent back to me from the URL. Is there something missing in this code?

I would recommend a simplification of this messy code:
using (var client = new WebClient())
{
var values = new NameValueCollection
{
{ "XMLData", format }
};
byte[] resultBuffer = client.UploadValues(url, values);
string result = Encoding.UTF8.GetString(resultBuffer);
}
and if you wanted to upload the XML directly in the POST body you shouldn't be using application/x-www-form-urlencoded as content type. You probably should specify the correct content type, like this:
using (var client = new WebClient())
{
client.Headers[HttpRequestHeader.ContentType] = "text/xml";
var data = Encoding.UTF8.GetBytes(format);
byte[] resultBuffer = client.UploadData(url, data);
string result = Encoding.UTF8.GetString(resultBuffer);
}