/// <summary>
/// Builds a SHA256 hash of the data contained in this <see cref="AuditEntry"/>.
/// </summary>
/// <param name="hashAlgorithm"><see cref="SupportedHashAlgorithm"/> to use for hashing data.</param>
/// <returns>Hash byte array.</returns>
private byte[] HashMessage(SupportedHashAlgorithm hashAlgorithm)
{
HashAlgorithm hasher = null;
switch (hashAlgorithm)
{
case SupportedHashAlgorithm.SHA1:
hasher = new SHA1Managed();
break;
case SupportedHashAlgorithm.SHA256:
hasher = new SHA256Managed();
break;
case SupportedHashAlgorithm.SHA384:
hasher = new SHA384Managed();
break;
case SupportedHashAlgorithm.SHA512:
hasher = new SHA512Managed();
break;
}
var endoding = new UnicodeEncoding();
var id = BitConverter.GetBytes(Sequence);
var createdAt = BitConverter.GetBytes(CreatedAt.ToBinary());
var strData = endoding.GetBytes($"{Stream}{Action}{UserDetails}{DataPayload}");
return(hasher.ComputeHash(id.Concat(createdAt).Concat(strData).ToArray()));
}
public EventMessage(CoreTweet.Streaming.EventMessage cEventMessage)
{
CreatedAt = cEventMessage.CreatedAt.DateTime;
Id = CreatedAt.ToBinary();
Source = new User(cEventMessage.Source);
Target = new User(cEventMessage.Target);
TargetStatus = cEventMessage.TargetStatus != null ? new Status(cEventMessage.TargetStatus) : null;
Type = cEventMessage.Event.ToString();
}
public EventMessage(Status cStatus)
{
if (!cStatus.HasRetweetInformation)
{
return;
}
CreatedAt = cStatus.CreatedAt;
Id = CreatedAt.ToBinary();
Source = cStatus.RetweetInformation.User;
Target = cStatus.User;
TargetStatus = cStatus;
Type = "Retweet";
}