public void Test_Patching_Payload_Deserializes_To_Correct_Values()
{
//arrange
SerializerService serializer = new SerializerService();
serializer.RegisterPolymorphicSerializer <PSOBBPatchPacketPayloadClient, PSOBBPatchPacketPayloadClient_AutoGeneratedTemplateSerializerStrategy>();
serializer.RegisterPolymorphicSerializer <PSOBBPatchPacketPayloadServer, PSOBBPatchPacketPayloadServer_AutoGeneratedTemplateSerializerStrategy>();
Span <byte> buffer = new Span <byte>(new byte[500]);
PatchingWelcomePayload payload = new PatchingWelcomePayload("Patch Server. Copyright SonicTeam, LTD. 2001", 506953426, 214005626);
//assert
int offset = 0;
serializer.Write(payload, buffer, ref offset);
int size = offset;
offset = 0;
PatchingWelcomePayload deserializedPayload = (PatchingWelcomePayload)serializer.Read <PSOBBPatchPacketPayloadServer>(buffer.Slice(0, size), ref offset);
//assert
Assert.AreEqual(payload.PatchCopyrightMessage, deserializedPayload.PatchCopyrightMessage);
Assert.AreEqual(payload.ClientVector, deserializedPayload.ClientVector);
Assert.AreEqual(payload.ServerVector, deserializedPayload.ServerVector);
Assert.AreEqual(0x99, deserializedPayload.OperationCode);
}
public void Can_Deserialize_Captures_To_GamePacketPayloads(PacketCaptureTestEntry entry)
{
Console.WriteLine($"Entry Decompressed/Real Size: {entry.BinaryData.Length} OpCode: {entry.OpCode}");
//arrange
SerializerService serializer = Serializer;
GamePacketPayload payload;
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
//act
try
{
payload = serializer.Read <GamePacketPayload>(new Span <byte>(entry.BinaryData), 0);
}
catch (Exception e)
{
Assert.Fail($"Critical failure. Cannot deserialize File: {entry.FileName} FileSize: {entry.BinaryData.Length} \n\n Exception: {e.Message} Stack: {e.StackTrace}");
return;
}
finally
{
stopwatch.Stop();
}
Console.WriteLine($"Serialization time in ms: {stopwatch.ElapsedMilliseconds}");
//assert
Assert.NotNull(payload, $"Resulting capture capture deserialization attempt null for File: {entry.FileName}");
//We should have deserialized it. We want to make sure the opcode matches
Assert.AreEqual(entry.OpCode, payload.OperationCode, $"Mismatched {nameof(NetworkOperationCode)} on packet capture File: {entry.FileName}. Expected: {entry.OpCode} Was: {payload.OperationCode}");
}
public void Test_No_Stack_Overflow_On_Deserializing_PacketHeader()
{
//arrange
SerializerService serializer = new SerializerService();
serializer.RegisterPolymorphicSerializer <PSOBBPatchPacketPayloadClient, PSOBBPatchPacketPayloadClient_AutoGeneratedTemplateSerializerStrategy>();
serializer.RegisterPolymorphicSerializer <PSOBBPatchPacketPayloadServer, PSOBBPatchPacketPayloadServer_AutoGeneratedTemplateSerializerStrategy>();
byte[] bytes = new byte[] { 55, 78 };
serializer.Read <PSOBBPacketHeader>(new Span <byte>(bytes), 0);
}
private static void BenchMarkMethod(SerializerService serializer)
{
Stopwatch watch = new Stopwatch();
Span <byte> buffer = new Span <byte>(new byte[10000]);
int offset = 0;
watch.Start();
for (int i = 0; i < 5000000; i++)
{
AuthPacketBaseTest packet = serializer.Read <AuthPacketBaseTest>(realWorldBytes, 0);
serializer.Write(packet, buffer, ref offset);
offset = 0;
}
watch.Stop();
Console.WriteLine($"MS: {watch.ElapsedMilliseconds}");
}
public void Test_Can_Serialize_Then_Deserialize_Subcommand60Payload()
{
//arrange
SerializerService serializer = new SerializerService();
serializer.RegisterPolymorphicSerializer <BaseSubCommand60, BaseSubCommand60_Serializer>();
Span <byte> buffer = new Span <byte>(new byte[1000]);
int offset = 0;
//act
serializer.Write(new Sub60MovingFastPositionSetCommand(5, new Vector2 <float>(2, 5)), buffer, ref offset);
Sub60MovingFastPositionSetCommand desserialized = serializer.Read <BaseSubCommand60>(buffer.Slice(0, offset), 0)
as Sub60MovingFastPositionSetCommand;
//assert
Assert.NotNull(desserialized, "Object was null.");
Assert.NotNull(desserialized.Position);
Assert.AreEqual(5, desserialized.Identifier);
Assert.True(Math.Abs(desserialized.Position.X - 2) < float.Epsilon);
}
public void Test_Can_Serialize_Payload()
{
//arrange
SerializerService serializer = new SerializerService();
serializer.RegisterPolymorphicSerializer <PSOBBPatchPacketPayloadClient, PSOBBPatchPacketPayloadClient_AutoGeneratedTemplateSerializerStrategy>();
serializer.RegisterPolymorphicSerializer <PSOBBPatchPacketPayloadServer, PSOBBPatchPacketPayloadServer_AutoGeneratedTemplateSerializerStrategy>();
byte[] bytes = Enumerable.Repeat((byte)55, 200).ToArray();
//act
int offset = 0;
UnknownPatchPacket payload = serializer.Read <PSOBBPatchPacketPayloadServer>(new Span <byte>(bytes), ref offset)
as UnknownPatchPacket;
Assert.True(payload.UnknownBytes.Length == (200 - 2));
for (int i = 0; i < bytes.Length - 2; i++)
{
Assert.AreEqual(bytes[i], payload.UnknownBytes[i]);
}
}
static void Main(string[] args)
{
realWorldBytes = realWorldBytes
.Take(1)
.Concat(new byte[5000])
.Concat(realWorldBytes.Skip(1))
.ToArray();
Span <byte> buffer = new Span <byte>(new byte[10000]);
int offset = 0;
SerializerService serializer = new SerializerService();
serializer.RegisterPolymorphicSerializer <AuthPacketBaseTest, AuthPacketBaseTest_AutoGeneratedTemplateSerializerStrategy>();
//JIT
AuthPacketBaseTest packet = serializer.Read <AuthPacketBaseTest>(realWorldBytes, 0);
serializer.Write(packet, buffer, ref offset);
BenchMarkMethod(serializer);
Console.ReadKey();
}
public void Can_Serialize_DeserializedDTO_To_Same_Binary_Representation(PacketCaptureTestEntry entry)
{
//arrange
Console.WriteLine($"Entry Size: {entry.BinaryData.Length} OpCode: {entry.OpCode}");
SerializerService serializer = Serializer;
GamePacketPayload payload = serializer.Read <GamePacketPayload>(new Span <byte>(entry.BinaryData), 0);
//act
int offset = 0;
Span <byte> buffer = new Span <byte>(new byte[62000]);
try
{
serializer.Write(payload, buffer, ref offset);
}
catch (KnownIncompleteSerializationException e)
{
Assert.Warn($"Incomplete serialization implementation for Type: {e.Message}. Message: {e}");
return;
}
//assert
try
{
Assert.AreEqual(entry.BinaryData.Length, offset, $"Mismatched length on OpCode: {entry.OpCode} Type: {payload.GetType().Name}");
}
catch (AssertionException e)
{
Assert.Fail($"Failed: {e.Message} {PrintFailureBytes(entry.BinaryData, buffer.Slice(0, offset).ToArray())}");
}
for (int i = 0; i < entry.BinaryData.Length; i++)
{
Assert.AreEqual(entry.BinaryData[i], buffer[i], $"Mismatched byte value at Index: {i} on OpCode: {entry.OpCode} Type: {payload.GetType().Name}");
}
}
public void Generic_Can_Serialize_DeserializedClientDTO_To_Same_Binary_Representation <TBasePayloadType, TOperationCodeType>(PacketCaptureTestEntry entry)
where TBasePayloadType : IOperationCodeable <TOperationCodeType>, ITypeSerializerReadingStrategy <TBasePayloadType>, ITypeSerializerWritingStrategy <TBasePayloadType>
where TOperationCodeType : Enum
{
//arrange
Console.WriteLine($"Entry Size: {entry.BinaryData.Length} OpCode: {entry.OpCode}");
SerializerService serializer = Serializer;
TBasePayloadType payload = default;
int readOffset = 0;
try
{
payload = serializer.Read <TBasePayloadType>(entry.BinaryData, ref readOffset);
}
catch (IndexOutOfRangeException e)
{
Console.WriteLine($"Offset: {readOffset} BinarySize: {entry.BinaryData.Length}");
throw;
}
catch (Exception e)
{
Console.WriteLine($"Error: {e}");
throw;
}
if (payload is IUnknownPayloadType)
{
Assert.Warn($"Encountered unimplemented OpCode: 0x{payload.OperationCode:X} - {payload.OperationCode.ToString()}.");
return;
}
bool isSub60 = false;
bool isSub62 = false;
//Special handling for 0x60 payloads, we don't want to deal with unknown subcommands. Just warn
if (payload is ISub60CommandContainer sub60)
{
isSub60 = true;
if (sub60.Command is UnknownSubCommand60Command)
{
Assert.Warn($"Encountered unimplemented Sub60 SubCommand: 0x{payload.OperationCode:X} 0x{entry.BinaryData[6]:X}.");
return;
}
}
else if (payload is ISub62CommandContainer sub62)
{
isSub62 = true;
if (sub62.Command is UnknownSubCommand62Command)
{
Assert.Warn($"Encountered unimplemented Sub62 SubCommand: 0x{payload.OperationCode:X} 0x{entry.BinaryData[6]:X}.");
return;
}
}
//act
byte[] rentedBuffer = ArrayPool <byte> .Shared.Rent(36000 * 2);
//Must zero out for cleanest tests.
for (int i = 0; i < rentedBuffer.Length; i++)
{
rentedBuffer[i] = default(byte);
}
try
{
Span <byte> buffer = new Span <byte>(rentedBuffer);
int offset = 0;
serializer.Write(payload, buffer, ref offset);
buffer = buffer.Slice(0, offset);
//The plus 2 is from the packet size which is included as calculation in whether it is appropriate for the block
//size of 8.
//+2 is also added to the original binary length since it's missing the packet size too.
int serializedBytesWithBlockSize = ConvertToBlocksizeCount(buffer.Length + 2, 8);
int entryBytesWithBlockSize = ConvertToBlocksizeCount(entry.BinaryData.Length + 2, 8);
//assert
try
{
if (!isSub60 && !isSub62)
{
//convert the serialized bytes to block size since Sylverant and the packet captures will include that in the data
Assert.AreEqual(entryBytesWithBlockSize, serializedBytesWithBlockSize, $"Mismatched length on OpCode: {(GameNetworkOperationCode)entry.OpCode} - 0x{entry.OpCode:X} Type: {payload.GetType().Name}");
}
else if (isSub60)
{
var command = (payload as ISub60CommandContainer).Command;
//Similar to the above but we include information about the sub60 command
Assert.AreEqual(entryBytesWithBlockSize, serializedBytesWithBlockSize, $"Mismatched length on OpCode: {(GameNetworkOperationCode)entry.OpCode} - 0x{entry.OpCode:X} Type: {payload.GetType().Name} Sub60 OpCode: 0x{entry.BinaryData[6]:X} Type: {command.GetType().Name}");
//Command 60s should also check the command size
Assert.AreEqual(entry.BinaryData[7], buffer[7], $"Mismatched Sub60 {nameof(BaseSubCommand60.CommandSize)} on OpCode: {(GameNetworkOperationCode)entry.OpCode} - 0x{entry.OpCode:X} Type: {payload.GetType().Name} Sub60 OpCode: 0x{entry.BinaryData[6]:X} Type: {command.GetType().Name}");
}
else if (isSub62)
{
var command = (payload as ISub62CommandContainer).Command;
//Similar to the above but we include information about the sub60 command
Assert.AreEqual(entryBytesWithBlockSize, serializedBytesWithBlockSize, $"Mismatched length on OpCode: {(GameNetworkOperationCode)entry.OpCode} - 0x{entry.OpCode:X} Type: {payload.GetType().Name} Sub62 OpCode: 0x{entry.BinaryData[6]:X} Type: {command.GetType().Name}");
}
}
catch (AssertionException e)
{
Assert.Fail($"Failed: {e.Message} {PrintFailureBytes(entry.BinaryData, buffer)}");
}
//check both lengths since we accept that some packet models won't include the padding.
for (int i = 0; i < entry.BinaryData.Length && i < buffer.Length; i++)
{
if (!isSub60 && !isSub62)
{
//This is an optimization to avoid pointless string allocations/building.
if (entry.BinaryData[i] != buffer[i])
{
Assert.AreEqual(entry.BinaryData[i], buffer[i], $"Mismatched byte value at Index: {i} on OpCode: 0x{entry.OpCode:X} Type: {payload.GetType().Name} {PrintFailureBytes(entry.BinaryData, buffer)}");
}
}
else if (isSub60)
{
var command = (payload as ISub60CommandContainer).Command;
//This is an optimization to avoid pointless string allocations/building.
if (entry.BinaryData[i] != buffer[i])
{
Assert.AreEqual(entry.BinaryData[i], buffer[i], $"Mismatched byte value at Index: {i} on OpCode: 0x{entry.OpCode:X} Type: {payload.GetType().Name} Sub60 OpCode: 0x{entry.BinaryData[6]:X} Type: {command.GetType().Name} {PrintFailureBytes(entry.BinaryData, buffer)}");
}
}
else if (isSub62)
{
var command = (payload as ISub62CommandContainer).Command;
//This is an optimization to avoid pointless string allocations/building.
if (entry.BinaryData[i] != buffer[i])
{
Assert.AreEqual(entry.BinaryData[i], buffer[i], $"Mismatched byte value at Index: {i} on OpCode: 0x{entry.OpCode:X} Type: {payload.GetType().Name} Sub62 OpCode: 0x{entry.BinaryData[6]:X} Type: {command.GetType().Name} {PrintFailureBytes(entry.BinaryData, buffer)}");
}
}
}
//Special check for when we have a packet that hasn't failed but has differently lenghts (assumed to be blocksize)
//we check and make sure that the ending bytes are actually 0. If they aren't it likely NOT padding and additional unhandled data
if (entry.BinaryData.Length > buffer.Length)
{
for (int i = buffer.Length; i < entry.BinaryData.Length; i++)
{
if (!isSub60 && !isSub62)
{
Assert.AreEqual(0, entry.BinaryData[i], $"Encountered assumed padding byte at Index: {i} on OpCode: 0x{entry.OpCode} Type: {payload.GetType().Name} but value was: 0x{entry.BinaryData[i]:X}");
}
else if (isSub60)
{
var command = (payload as ISub60CommandContainer).Command;
Assert.AreEqual(0, entry.BinaryData[i], $"Encountered assumed padding byte at Index: {i} on OpCode: 0x{entry.OpCode} Type: {payload.GetType().Name} but value was: 0x{entry.BinaryData[i]:X} Sub60 OpCode: 0x{entry.BinaryData[6]:X} Type: {command.GetType().Name}");
}
else if (isSub62)
{
var command = (payload as ISub62CommandContainer).Command;
Assert.AreEqual(0, entry.BinaryData[i], $"Encountered assumed padding byte at Index: {i} on OpCode: 0x{entry.OpCode} Type: {payload.GetType().Name} but value was: 0x{entry.BinaryData[i]:X} Sub62 OpCode: 0x{entry.BinaryData[6]:X} Type: {command.GetType().Name}");
}
}
}
}
finally
{
ArrayPool <byte> .Shared.Return(rentedBuffer);
}
}