/// <summary>
/// Creates a new crypto decorator for the <see cref="NetworkClientBase"/>.
/// Extends the <see cref="ReadAsync"/> and <see cref="WriteAsync"/> implementations to pass
/// all bytes through the corresponding incoming and outgoing ciphers.
/// </summary>
/// <param name="decoratedClient">The client to decorate.</param>
/// <param name="encryptionServiceProvider">The encryption service.</param>
/// <param name="decryptionServiceProvider">The decryption service.</param>
public NetworkClientFixedBlockSizeCryptoDecorator(NetworkClientBase decoratedClient, ICryptoServiceProvider encryptionServiceProvider, ICryptoServiceProvider decryptionServiceProvider, int blockSize, int cryptoBufferSize = 30000)
{
if (decoratedClient == null)
{
throw new ArgumentNullException(nameof(decoratedClient));
}
if (encryptionServiceProvider == null)
{
throw new ArgumentNullException(nameof(encryptionServiceProvider));
}
if (decryptionServiceProvider == null)
{
throw new ArgumentNullException(nameof(decryptionServiceProvider));
}
if (blockSize <= 0)
{
throw new ArgumentOutOfRangeException(nameof(blockSize));
}
DecoratedClient = decoratedClient;
EncryptionServiceProvider = encryptionServiceProvider;
DecryptionServiceProvider = decryptionServiceProvider;
BlockSize = blockSize;
//One of the lobby packets is 14,000 bytes. We may even need bigger.
ReadBuffer = new AsyncLockableBuffer(cryptoBufferSize);
WriteBuffer = new AsyncLockableBuffer(cryptoBufferSize);
CryptoBlockOverflow = new byte[Math.Max(blockSize - 1, 0)]; //we only need
CryptoBlockOverflowReadIndex = CryptoBlockOverflow.Length; //set this to last index to indicate empty initially
}
public NetworkClientBufferWriteUntilSizeReachedDecorator(NetworkClientBase decoratedClient, int bufferedWaitSize, int bufferedCombinedSize = 30000)
{
if (decoratedClient == null)
{
throw new ArgumentNullException(nameof(decoratedClient));
}
if (bufferedWaitSize <= 1)
{
throw new ArgumentOutOfRangeException(nameof(bufferedWaitSize), "Do not use this decorator if you don't need buffered data.");
}
DecoratedClient = decoratedClient;
BufferedData = new AsyncLockableBuffer(bufferedWaitSize);
CombinedBuffer = new AsyncLockableBuffer(bufferedCombinedSize);
}
/// <summary>
/// Creates a new crypto decorator for the <see cref="NetworkClientBase"/>.
/// Extends the <see cref="ReadAsync"/> and <see cref="WriteAsync"/> implementations to pass
/// all bytes through the corresponding incoming and outgoing ciphers.
/// </summary>
/// <param name="decoratedClient">The client to decorate.</param>
/// <param name="encryptionServiceProvider">The encryption service.</param>
/// <param name="decryptionServiceProvider">The decryption service.</param>
public NetworkClientBlocklessCryptoDecorator(NetworkClientBase decoratedClient, ICryptoServiceProvider encryptionServiceProvider, ICryptoServiceProvider decryptionServiceProvider)
{
if (decoratedClient == null)
{
throw new ArgumentNullException(nameof(decoratedClient));
}
if (encryptionServiceProvider == null)
{
throw new ArgumentNullException(nameof(encryptionServiceProvider));
}
if (decryptionServiceProvider == null)
{
throw new ArgumentNullException(nameof(decryptionServiceProvider));
}
DecoratedClient = decoratedClient;
EncryptionServiceProvider = encryptionServiceProvider;
DecryptionServiceProvider = decryptionServiceProvider;
}
/// <summary>
/// </summary>
/// <param name="decoratedClient">The client to decorate.</param>
/// <param name="serializer"></param>
/// <param name="headerSize"></param>
public NetworkClientPacketHeaderReaderWriterDecorator(NetworkClientBase decoratedClient, INetworkSerializationService serializer, int headerSize)
{
if (decoratedClient == null)
{
throw new ArgumentNullException(nameof(decoratedClient));
}
if (serializer == null)
{
throw new ArgumentNullException(nameof(serializer));
}
if (headerSize < 0)
{
throw new ArgumentOutOfRangeException(nameof(headerSize));
}
//We need to support up to the maximum block
PacketHeaderBuffer = new byte[headerSize];
DecoratedClient = decoratedClient;
Serializer = serializer;
}
/// <summary>
/// Implementer should build the <see cref="IManagedNetworkClient{TPayloadWriteType,TPayloadReadType}"/>
/// for the outgoing client.
/// </summary>
/// <param name="clientBase">The client base to use.</param>
/// <param name="serializeService">The serializer to use.</param>
/// <returns>The built managed client.</returns>
protected abstract IManagedNetworkClient <TPayloadReadType, TPayloadWriteType> BuildOutgoingSessionManagedClient(NetworkClientBase clientBase, INetworkSerializationService serializeService);
/// <summary>
/// Enables header reading functionality to a client.
/// </summary>
/// <param name="client">The client to add header reading to.</param>
/// <returns>A client that can read headers from the network.</returns>
public static NetworkClientPacketHeaderReaderWriterDecorator <TPacketHeaderType> AddHeaderReading <TPacketHeaderType>(this NetworkClientBase client, INetworkSerializationService serializer, int headerSize)
where TPacketHeaderType : IPacketHeader
{
if (client == null)
{
throw new ArgumentNullException(nameof(client));
}
if (serializer == null)
{
throw new ArgumentNullException(nameof(serializer));
}
return(new NetworkClientPacketHeaderReaderWriterDecorator <TPacketHeaderType>(client, serializer, headerSize));
}
/// <summary>
/// Enables bufferred writing functionality. This means that the actual writing won't begin until the
/// provided buffer threshold <see cref="bufferedCount"/> is reached.
/// </summary>
/// <param name="client">The client to decorate.</param>
/// <param name="bufferedCount">The amount to wait for before writing.</param>
/// <returns>The client decorated with buffered write functionality</returns>
public static NetworkClientBufferWriteUntilSizeReachedDecorator AddBufferredWrite(this NetworkClientBase client, int bufferedCount)
{
if (client == null)
{
throw new ArgumentNullException(nameof(client));
}
if (bufferedCount <= 0)
{
throw new ArgumentOutOfRangeException(nameof(bufferedCount));
}
return(new NetworkClientBufferWriteUntilSizeReachedDecorator(client, bufferedCount));
}