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https://github.com/Mezeporta/Erupe.git
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f640cfee27
Add SJISToUTF8Lossy() that wraps SJISToUTF8() and logs decode errors at slog.Debug level. Replace all 31 call sites across 17 files that previously discarded the error with `_, _ =`. This makes garbled text from malformed SJIS client data debuggable without adding noise at default log levels.
61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
package binpacket
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import (
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"erupe-ce/common/byteframe"
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"erupe-ce/common/stringsupport"
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"erupe-ce/network"
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)
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// ChatType represents the chat message type (Thanks to @Alice on discord for identifying these!)
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type ChatType uint8
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// Chat types
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const (
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ChatTypeWorld ChatType = 0
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ChatTypeStage ChatType = 1
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ChatTypeGuild ChatType = 2
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ChatTypeAlliance ChatType = 3
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ChatTypeParty ChatType = 4
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ChatTypeWhisper ChatType = 5
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)
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// MsgBinChat is a binpacket for chat messages.
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type MsgBinChat struct {
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Unk0 uint8
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Type ChatType
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Flags uint16
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Message string
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SenderName string
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}
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// Opcode returns the ID associated with this packet type.
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func (m *MsgBinChat) Opcode() network.PacketID {
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return network.MSG_SYS_CAST_BINARY
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}
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// Parse parses the packet from binary
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func (m *MsgBinChat) Parse(bf *byteframe.ByteFrame) error {
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m.Unk0 = bf.ReadUint8()
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m.Type = ChatType(bf.ReadUint8())
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m.Flags = bf.ReadUint16()
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_ = bf.ReadUint16() // lenSenderName
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_ = bf.ReadUint16() // lenMessage
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m.Message = stringsupport.SJISToUTF8Lossy(bf.ReadNullTerminatedBytes())
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m.SenderName = stringsupport.SJISToUTF8Lossy(bf.ReadNullTerminatedBytes())
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return nil
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}
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// Build builds a binary packet from the current data.
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func (m *MsgBinChat) Build(bf *byteframe.ByteFrame) error {
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bf.WriteUint8(m.Unk0)
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bf.WriteUint8(uint8(m.Type))
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bf.WriteUint16(m.Flags)
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cMessage := stringsupport.UTF8ToSJIS(m.Message)
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cSenderName := stringsupport.UTF8ToSJIS(m.SenderName)
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bf.WriteUint16(uint16(len(cSenderName) + 1))
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bf.WriteUint16(uint16(len(cMessage) + 1))
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bf.WriteNullTerminatedBytes(cMessage)
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bf.WriteNullTerminatedBytes(cSenderName)
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return nil
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}
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