/// <summary>
/// Deserializes a string into a PacketDefinition
/// </summary>
/// <param name="packetContent">The content to deseralize</param>
/// <param name="packetType">The type of the packet to deserialize to</param>
/// <param name="includesKeepAliveIdentity">
/// Include the keep alive identity or exclude it
/// </param>
/// <returns>The deserialized packet.</returns>
public static PacketDefinition Deserialize(string packetContent, Type packetType, bool includesKeepAliveIdentity = false)
{
try
{
KeyValuePair <Tuple <Type, string>, Dictionary <PacketIndexAttribute, PropertyInfo> > serializationInformation = GetSerializationInformation(packetType);
PacketDefinition deserializedPacket = (PacketDefinition)Activator.CreateInstance(packetType); // reflection is bad, improve?
SetDeserializationInformations(deserializedPacket, packetContent, serializationInformation.Key.Item2);
deserializedPacket = Deserialize(packetContent, deserializedPacket, serializationInformation, includesKeepAliveIdentity);
return(deserializedPacket);
}
catch (Exception)
{
Logger.Log.Warn($"The serialized packet has the wrong format. Packet: {packetContent}");
return(null);
}
}
private static PacketDefinition Deserialize(string packetContent, PacketDefinition deserializedPacket, KeyValuePair <Tuple <Type, string>,
Dictionary <PacketIndexAttribute, PropertyInfo> > serializationInformation, bool includesKeepAliveIdentity)
{
MatchCollection matches = Regex.Matches(packetContent, @"([^\040]+[\.][^\040]+[\040]?)+((?=\040)|$)|([^\040]+)((?=\040)|$)");
if (matches.Count <= 0)
{
return(deserializedPacket);
}
foreach (KeyValuePair <PacketIndexAttribute, PropertyInfo> packetBasePropertyInfo in serializationInformation.Value)
{
int currentIndex = packetBasePropertyInfo.Key.Index + (includesKeepAliveIdentity ? 2 : 1); // adding 2 because we need to skip incrementing number and packet header
if (currentIndex < matches.Count)
{
if (packetBasePropertyInfo.Key.SerializeToEnd)
{
// get the value to the end and stop deserialization
string valueToEnd = packetContent.Substring(matches[currentIndex].Index, packetContent.Length - matches[currentIndex].Index);
packetBasePropertyInfo.Value.SetValue(deserializedPacket,
DeserializeValue(packetBasePropertyInfo.Value.PropertyType, valueToEnd, packetBasePropertyInfo.Key, matches, includesKeepAliveIdentity));
break;
}
string currentValue = matches[currentIndex].Value;
if (packetBasePropertyInfo.Value.PropertyType == typeof(string) && string.IsNullOrEmpty(currentValue))
{
throw new NullReferenceException();
}
// set the value & convert currentValue
packetBasePropertyInfo.Value.SetValue(deserializedPacket,
DeserializeValue(packetBasePropertyInfo.Value.PropertyType, currentValue, packetBasePropertyInfo.Key, matches, includesKeepAliveIdentity));
}
else
{
break;
}
}
return(deserializedPacket);
}
private static void SetDeserializationInformations(PacketDefinition packetDefinition, string packetContent, string packetHeader)
{
packetDefinition.OriginalContent = packetContent;
packetDefinition.OriginalHeader = packetHeader;
}