private byte[] GetPayloadWithSalt(Message message)
{
var requestBody = new
{
GameName = message.GameName,
KeysCount = message.KeysCount,
Take = message.Take,
Commission = message.Commission
};
string salt = _configuration.GetSection("Settings").GetSection("HashingSecret").Value;
var saltBytes = Encoding.UTF8.GetBytes(salt);
var payload = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(requestBody));
var data = new byte[payload.Length + saltBytes.Length];
for (int i = 0; i < payload.Length; i++)
{
data[i] = payload[i];
}
for (int i = 0; i < saltBytes.Length; i++)
{
data[payload.Length + i] = saltBytes[i];
}
return(data);
}
private Message MapToMessage(PaymentSession session)
{
var game = session.GameKeys.First().Game;
var marketShare = double.Parse(_configuration.GetSection("Settings").GetSection("MarketShare").Value);
var message = new Message();
message.VendorUrl = game.Vendor.Username;
message.GameName = game.Name;
message.KeysCount = session.GameKeys.Count;
message.Take = session.GameKeys.Count * game.Price * (1 - marketShare);
message.Commission = marketShare;
return(message);
}
private string GenerateHash(Message message)
{
var data = GetPayloadWithSalt(message);
MD5 md5 = new MD5CryptoServiceProvider();
data = md5.ComputeHash(data);
var sBuilder = new StringBuilder();
for (int i = 0; i < data.Length; i++)
{
sBuilder.Append(data[i].ToString("x2"));
}
return(sBuilder.ToString());
}
