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author | Tiger Wang <ziwei.tiger@outlook.com> | 2021-03-08 17:37:36 +0100 |
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committer | GitHub <noreply@github.com> | 2021-03-08 17:37:36 +0100 |
commit | 01a4e696b3d2c973cdd1fb4345d747bd10e93ad9 (patch) | |
tree | 92996aef85fca3306b26535fa44feb812deb050b /src/Protocol/Protocol_1_8.cpp | |
parent | Some emplace_back replacements (#5149) (diff) | |
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Diffstat (limited to 'src/Protocol/Protocol_1_8.cpp')
-rw-r--r-- | src/Protocol/Protocol_1_8.cpp | 259 |
1 files changed, 121 insertions, 138 deletions
diff --git a/src/Protocol/Protocol_1_8.cpp b/src/Protocol/Protocol_1_8.cpp index e3bb7e5a3..8e7b74614 100644 --- a/src/Protocol/Protocol_1_8.cpp +++ b/src/Protocol/Protocol_1_8.cpp @@ -173,31 +173,14 @@ cProtocol_1_8_0::cProtocol_1_8_0(cClientHandle * a_Client, const AString & a_Ser -void cProtocol_1_8_0::DataReceived(cByteBuffer & a_Buffer, const char * a_Data, size_t a_Size) +void cProtocol_1_8_0::DataReceived(cByteBuffer & a_Buffer, ContiguousByteBuffer && a_Data) { if (m_IsEncrypted) { - // An artefact of the protocol recogniser, will be removed when decryption done in-place: - if (a_Size == 0) - { - AddReceivedData(a_Buffer, nullptr, 0); - return; - } - - std::byte Decrypted[512]; - while (a_Size > 0) - { - size_t NumBytes = (a_Size > sizeof(Decrypted)) ? sizeof(Decrypted) : a_Size; - m_Decryptor.ProcessData(Decrypted, reinterpret_cast<const Byte *>(a_Data), NumBytes); - AddReceivedData(a_Buffer, reinterpret_cast<const char *>(Decrypted), NumBytes); - a_Size -= NumBytes; - a_Data += NumBytes; - } - } - else - { - AddReceivedData(a_Buffer, a_Data, a_Size); + m_Decryptor.ProcessData(a_Data.data(), a_Data.size()); } + + AddReceivedData(a_Buffer, a_Data); } @@ -2002,123 +1985,6 @@ UInt32 cProtocol_1_8_0::GetProtocolMobType(const eMonsterType a_MobType) -void cProtocol_1_8_0::AddReceivedData(cByteBuffer & a_Buffer, const char * a_Data, size_t a_Size) -{ - // Write the incoming data into the comm log file: - if (g_ShouldLogCommIn && m_CommLogFile.IsOpen()) - { - if (a_Buffer.GetReadableSpace() > 0) - { - ContiguousByteBuffer AllData; - size_t OldReadableSpace = a_Buffer.GetReadableSpace(); - a_Buffer.ReadAll(AllData); - a_Buffer.ResetRead(); - a_Buffer.SkipRead(a_Buffer.GetReadableSpace() - OldReadableSpace); - ASSERT(a_Buffer.GetReadableSpace() == OldReadableSpace); - AString Hex; - CreateHexDump(Hex, AllData.data(), AllData.size(), 16); - m_CommLogFile.Printf("Incoming data, %zu (0x%zx) unparsed bytes already present in buffer:\n%s\n", - AllData.size(), AllData.size(), Hex.c_str() - ); - } - AString Hex; - CreateHexDump(Hex, a_Data, a_Size, 16); - m_CommLogFile.Printf("Incoming data: %u (0x%x) bytes: \n%s\n", - static_cast<unsigned>(a_Size), static_cast<unsigned>(a_Size), Hex.c_str() - ); - m_CommLogFile.Flush(); - } - - if (!a_Buffer.Write(a_Data, a_Size)) - { - // Too much data in the incoming queue, report to caller: - m_Client->PacketBufferFull(); - return; - } - - // Handle all complete packets: - for (;;) - { - UInt32 PacketLen; - if (!a_Buffer.ReadVarInt(PacketLen)) - { - // Not enough data - a_Buffer.ResetRead(); - break; - } - if (!a_Buffer.CanReadBytes(PacketLen)) - { - // The full packet hasn't been received yet - a_Buffer.ResetRead(); - break; - } - - // Check packet for compression: - if (m_State == 3) - { - UInt32 NumBytesRead = static_cast<UInt32>(a_Buffer.GetReadableSpace()); - - UInt32 UncompressedSize; - if (!a_Buffer.ReadVarInt(UncompressedSize)) - { - m_Client->Kick("Compression packet incomplete"); - return; - } - - NumBytesRead -= static_cast<UInt32>(a_Buffer.GetReadableSpace()); // How many bytes has the UncompressedSize taken up? - ASSERT(PacketLen > NumBytesRead); - PacketLen -= NumBytesRead; - - if (UncompressedSize > 0) - { - // Decompress the data: - m_Extractor.ReadFrom(a_Buffer, PacketLen); - a_Buffer.CommitRead(); - - const auto UncompressedData = m_Extractor.Extract(UncompressedSize); - const auto Uncompressed = UncompressedData.GetView(); - cByteBuffer bb(Uncompressed.size()); - - // Compression was used, move the uncompressed data: - VERIFY(bb.Write(Uncompressed.data(), Uncompressed.size())); - - HandlePacket(bb); - continue; - } - } - - // Move the packet payload to a separate cByteBuffer, bb: - cByteBuffer bb(PacketLen); - - // No compression was used, move directly: - VERIFY(a_Buffer.ReadToByteBuffer(bb, static_cast<size_t>(PacketLen))); - a_Buffer.CommitRead(); - - HandlePacket(bb); - } // for (ever) - - // Log any leftover bytes into the logfile: - if (g_ShouldLogCommIn && (a_Buffer.GetReadableSpace() > 0) && m_CommLogFile.IsOpen()) - { - ContiguousByteBuffer AllData; - size_t OldReadableSpace = a_Buffer.GetReadableSpace(); - a_Buffer.ReadAll(AllData); - a_Buffer.ResetRead(); - a_Buffer.SkipRead(a_Buffer.GetReadableSpace() - OldReadableSpace); - ASSERT(a_Buffer.GetReadableSpace() == OldReadableSpace); - AString Hex; - CreateHexDump(Hex, AllData.data(), AllData.size(), 16); - m_CommLogFile.Printf("There are %zu (0x%zx) bytes of non-parse-able data left in the buffer:\n%s", - a_Buffer.GetReadableSpace(), a_Buffer.GetReadableSpace(), Hex.c_str() - ); - m_CommLogFile.Flush(); - } -} - - - - - UInt32 cProtocol_1_8_0::GetPacketID(ePacketType a_PacketType) { switch (a_PacketType) @@ -3961,6 +3827,123 @@ void cProtocol_1_8_0::WriteEntityProperties(cPacketizer & a_Pkt, const cEntity & +void cProtocol_1_8_0::AddReceivedData(cByteBuffer & a_Buffer, const ContiguousByteBufferView a_Data) +{ + // Write the incoming data into the comm log file: + if (g_ShouldLogCommIn && m_CommLogFile.IsOpen()) + { + if (a_Buffer.GetReadableSpace() > 0) + { + ContiguousByteBuffer AllData; + size_t OldReadableSpace = a_Buffer.GetReadableSpace(); + a_Buffer.ReadAll(AllData); + a_Buffer.ResetRead(); + a_Buffer.SkipRead(a_Buffer.GetReadableSpace() - OldReadableSpace); + ASSERT(a_Buffer.GetReadableSpace() == OldReadableSpace); + AString Hex; + CreateHexDump(Hex, AllData.data(), AllData.size(), 16); + m_CommLogFile.Printf("Incoming data, %zu (0x%zx) unparsed bytes already present in buffer:\n%s\n", + AllData.size(), AllData.size(), Hex.c_str() + ); + } + AString Hex; + CreateHexDump(Hex, a_Data.data(), a_Data.size(), 16); + m_CommLogFile.Printf("Incoming data: %zu (0x%zx) bytes: \n%s\n", + a_Data.size(), a_Data.size(), Hex.c_str() + ); + m_CommLogFile.Flush(); + } + + if (!a_Buffer.Write(a_Data.data(), a_Data.size())) + { + // Too much data in the incoming queue, report to caller: + m_Client->PacketBufferFull(); + return; + } + + // Handle all complete packets: + for (;;) + { + UInt32 PacketLen; + if (!a_Buffer.ReadVarInt(PacketLen)) + { + // Not enough data + a_Buffer.ResetRead(); + break; + } + if (!a_Buffer.CanReadBytes(PacketLen)) + { + // The full packet hasn't been received yet + a_Buffer.ResetRead(); + break; + } + + // Check packet for compression: + if (m_State == 3) + { + UInt32 NumBytesRead = static_cast<UInt32>(a_Buffer.GetReadableSpace()); + + UInt32 UncompressedSize; + if (!a_Buffer.ReadVarInt(UncompressedSize)) + { + m_Client->Kick("Compression packet incomplete"); + return; + } + + NumBytesRead -= static_cast<UInt32>(a_Buffer.GetReadableSpace()); // How many bytes has the UncompressedSize taken up? + ASSERT(PacketLen > NumBytesRead); + PacketLen -= NumBytesRead; + + if (UncompressedSize > 0) + { + // Decompress the data: + m_Extractor.ReadFrom(a_Buffer, PacketLen); + a_Buffer.CommitRead(); + + const auto UncompressedData = m_Extractor.Extract(UncompressedSize); + const auto Uncompressed = UncompressedData.GetView(); + cByteBuffer bb(Uncompressed.size()); + + // Compression was used, move the uncompressed data: + VERIFY(bb.Write(Uncompressed.data(), Uncompressed.size())); + + HandlePacket(bb); + continue; + } + } + + // Move the packet payload to a separate cByteBuffer, bb: + cByteBuffer bb(PacketLen); + + // No compression was used, move directly: + VERIFY(a_Buffer.ReadToByteBuffer(bb, static_cast<size_t>(PacketLen))); + a_Buffer.CommitRead(); + + HandlePacket(bb); + } // for (ever) + + // Log any leftover bytes into the logfile: + if (g_ShouldLogCommIn && (a_Buffer.GetReadableSpace() > 0) && m_CommLogFile.IsOpen()) + { + ContiguousByteBuffer AllData; + size_t OldReadableSpace = a_Buffer.GetReadableSpace(); + a_Buffer.ReadAll(AllData); + a_Buffer.ResetRead(); + a_Buffer.SkipRead(a_Buffer.GetReadableSpace() - OldReadableSpace); + ASSERT(a_Buffer.GetReadableSpace() == OldReadableSpace); + AString Hex; + CreateHexDump(Hex, AllData.data(), AllData.size(), 16); + m_CommLogFile.Printf("There are %zu (0x%zx) bytes of non-parse-able data left in the buffer:\n%s", + a_Buffer.GetReadableSpace(), a_Buffer.GetReadableSpace(), Hex.c_str() + ); + m_CommLogFile.Flush(); + } +} + + + + + void cProtocol_1_8_0::HandlePacket(cByteBuffer & a_Buffer) { UInt32 PacketType; |