public void HandleMachineAuthCallback(SteamUser user, SteamUser.UpdateMachineAuthCallback obj)
{
int fileSize;
byte[] sentryHash;
using (var fs = Sentry.Open(FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
fs.Seek(obj.Offset, SeekOrigin.Begin);
fs.Write(obj.Data, 0, obj.BytesToWrite);
fileSize = (int)fs.Length;
fs.Seek(0, SeekOrigin.Begin);
using (var sha = SHA1.Create())
{
sentryHash = sha.ComputeHash(fs);
}
}
// inform the steam servers that we're accepting this sentry file
user.SendMachineAuthResponse(new SteamUser.MachineAuthDetails
{
JobID = obj.JobID,
FileName = obj.FileName,
BytesWritten = obj.BytesToWrite,
FileSize = fileSize,
Offset = obj.Offset,
Result = EResult.OK,
LastError = 0,
OneTimePassword = obj.OneTimePassword,
SentryFileHash = sentryHash,
});
}