API Single Sign On

[bravura]

Originally Posted by daniel.castro

UPDATE: If the encoding of my POST parameters is ASCII, I receive invalid_api_signature. If the encoding is Unicode, I receive The remote server returned an error: (404) Not Found.

--------------- Added [DATE]1375305081[/DATE] at [TIME]1375305081[/TIME] ---------------

UPDATE: vB4 authentication is working. Signature must include all parameters sent as url parameters except api_sig, api_c, api_s and api_v. During POST send in url and as post parameters.

Hello,

Can you please help me on creating the api_sig in vB4 using C#. I am getting this error: invalid_api_signature. I am using the below C# code

Code
=============

apiVersion = HttpUtility.UrlEncode(apiVersion);
apiAccessToken = HttpUtility.UrlEncode(apiAccessToken);
vBulletinVersion = HttpUtility.UrlEncode(vBulletinVersion);
apiClientId = HttpUtility.UrlEncode(apiClientId);
secret = HttpUtility.UrlEncode(secret);
apiKey = HttpUtility.UrlEncode(apiKey);

using(MD5 md5Hash = MD5.Create())
{
md5Password = GetMD5Hash(md5Hash, password);
}

string login_string = "api_m=login_login" + "&vb_login_username=" + userName + "&vb_login_md5password=" + md5Password;

using (MD5 md5Hash = MD5.Create())
{
api_sig = GetMD5Hash(md5Hash, login_string + apiAccessToken + apiClientId + secret + apiKey);
api_sig = HttpUtility.UrlEncode(api_sig);
}

String login_request = "vb_login_username=" + userName + "&vb_login_md5password=" + md5Password + "&cookieuser=true";

String request = "?api_c=" + apiClientId + "&api_v=" + apiVersion + "&api_m=login_login" + "&api_s=" + apiAccessToken + "&api_sig=" + api_sig;
url = url + request;
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);

req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
req.ContentLength = login_request.Length;
CookieContainer a = new CookieContainer();
req.CookieContainer = a;
System.Net.ServicePointManager.Expect100Continue = false; // prevents 417 error
using (StreamWriter writer = new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII))
{
writer.Write(login_request);
}

response = (HttpWebResponse)req.GetResponse();
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
//cookie = reader.ReadToEnd();
JavaScriptSerializer js = new JavaScriptSerializer();
jsonResp = js.Deserialize<Dictionary<string, object>>(reader.ReadToEnd());
}




Thanks