mirror of
https://github.com/ciphervance/supercell-wx.git
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112 lines
2.3 KiB
C++
112 lines
2.3 KiB
C++
#include <scwx/wsr88d/rpg/generic_data_packet.hpp>
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#include <scwx/util/logger.hpp>
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#include <istream>
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#include <string>
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namespace scwx
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{
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namespace wsr88d
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{
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namespace rpg
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{
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static const std::string logPrefix_ = "scwx::wsr88d::rpg::generic_data_packet";
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static const auto logger_ = util::Logger::Create(logPrefix_);
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class GenericDataPacketImpl
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{
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public:
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explicit GenericDataPacketImpl() :
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packetCode_ {0}, lengthOfBlock_ {0}, data_ {}
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{
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}
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~GenericDataPacketImpl() = default;
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uint16_t packetCode_;
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uint32_t lengthOfBlock_;
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std::vector<uint8_t> data_;
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};
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GenericDataPacket::GenericDataPacket() :
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p(std::make_unique<GenericDataPacketImpl>())
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{
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}
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GenericDataPacket::~GenericDataPacket() = default;
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GenericDataPacket::GenericDataPacket(GenericDataPacket&&) noexcept = default;
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GenericDataPacket&
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GenericDataPacket::operator=(GenericDataPacket&&) noexcept = default;
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uint16_t GenericDataPacket::packet_code() const
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{
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return p->packetCode_;
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}
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uint32_t GenericDataPacket::length_of_block() const
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{
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return p->lengthOfBlock_;
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}
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size_t GenericDataPacket::data_size() const
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{
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return p->lengthOfBlock_ + 8u;
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}
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bool GenericDataPacket::Parse(std::istream& is)
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{
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bool blockValid = true;
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std::streampos isBegin = is.tellg();
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is.read(reinterpret_cast<char*>(&p->packetCode_), 2);
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is.seekg(2, std::ios_base::cur);
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is.read(reinterpret_cast<char*>(&p->lengthOfBlock_), 4);
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p->packetCode_ = ntohs(p->packetCode_);
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p->lengthOfBlock_ = ntohl(p->lengthOfBlock_);
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if (is.eof())
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{
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logger_->debug("Reached end of file");
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blockValid = false;
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}
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else
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{
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if (p->packetCode_ != 28 && p->packetCode_ != 29)
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{
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logger_->warn("Invalid packet code: {}", p->packetCode_);
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blockValid = false;
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}
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}
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p->data_.resize(p->lengthOfBlock_);
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is.read(reinterpret_cast<char*>(p->data_.data()), p->lengthOfBlock_);
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std::streampos isEnd = is.tellg();
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if (!ValidateMessage(is, isEnd - isBegin))
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{
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blockValid = false;
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}
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return blockValid;
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}
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std::shared_ptr<GenericDataPacket> GenericDataPacket::Create(std::istream& is)
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{
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std::shared_ptr<GenericDataPacket> packet =
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std::make_shared<GenericDataPacket>();
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if (!packet->Parse(is))
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{
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packet.reset();
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}
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return packet;
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}
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} // namespace rpg
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} // namespace wsr88d
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} // namespace scwx
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