public static BaseResponse <T> RequestWithIdentity <T>(string url, object requestData, string us, string ps)
{
string hashPassword = PasswordSecurityHelper.GetHashedPassword(ps);
var headers = new Dictionary <string, string>();
headers.Add("Username", us);
headers.Add("Password", hashPassword);
headers.Add("Provider", "1");
var param = new
{
RequestData = requestData
};
return(Request <T>(url, param, headers));
}
/// <summary>
/// Generates a token to be used in API calls.
/// The token is generated by hashing a message with a key, using HMAC SHA256.
/// The message is: username:ip:userAgent:timeStamp
/// The key is: password:ip:salt
/// The resulting token is then concatenated with username:timeStamp and the result base64 encoded.
/// API calls may then be validated by:
/// 1. Base64 decode the string, obtaining the token, username, and timeStamp.
/// 2. Ensure the timestamp is not expired.
/// 2. Lookup the user's password from the db (cached).
/// 3. Hash the username:ip:userAgent:timeStamp with the key of password:salt to compute a token.
/// 4. Compare the computed token with the one supplied and ensure they match.
/// </summary>
/// <param name="username">The username.</param>
/// <param name="password">The password.</param>
/// <param name="ip">The ip.</param>
/// <param name="userAgent">The user agent.</param>
/// <param name="ticks">The ticks.</param>
/// <returns>
/// System.String.
/// </returns>
public static string GenerateToken(string username, string password, string ip, string userAgent, long ticks)
{
string _hash = string.Join(":", username, ip, userAgent, ticks.ToString());
string _hashLeft;
string _hashRight;
using (HMAC hmac = HMAC.Create(Alg))
{
hmac.Key = Encoding.UTF8.GetBytes(PasswordSecurityHelper.GetHashedPassword(password));
hmac.ComputeHash(Encoding.UTF8.GetBytes(_hash));
_hashLeft = Convert.ToBase64String(hmac.Hash);
_hashRight = string.Join(":", username, ticks.ToString());
}
return(Convert.ToBase64String(Encoding.UTF8.GetBytes(string.Join(":", _hashLeft, _hashRight))));
}