mirror of
https://github.com/Mrs4s/MiraiGo.git
synced 2025-05-04 19:17:38 +08:00
130 lines
2.4 KiB
Go
130 lines
2.4 KiB
Go
package binary
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import (
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"bytes"
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"encoding/binary"
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"encoding/hex"
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)
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// Writer 写入
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type Writer bytes.Buffer
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func NewWriterF(f func(writer *Writer)) []byte {
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w := NewWriter()
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f(w)
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b := append([]byte(nil), w.Bytes()...)
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PutBuffer(w)
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return b
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}
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func (w *Writer) Write(b []byte) {
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(*bytes.Buffer)(w).Write(b)
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}
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func (w *Writer) WriteHex(h string) {
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b, _ := hex.DecodeString(h)
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w.Write(b)
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}
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func (w *Writer) WriteByte(b byte) {
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(*bytes.Buffer)(w).WriteByte(b)
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}
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func (w *Writer) WriteUInt16(v uint16) {
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b := make([]byte, 2)
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binary.BigEndian.PutUint16(b, v)
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w.Write(b)
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}
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func (w *Writer) WriteUInt32(v uint32) {
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b := make([]byte, 4)
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binary.BigEndian.PutUint32(b, v)
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w.Write(b)
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}
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func (w *Writer) WriteUInt64(v uint64) {
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b := make([]byte, 8)
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binary.BigEndian.PutUint64(b, v)
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w.Write(b)
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}
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func (w *Writer) WriteString(v string) {
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payload := []byte(v)
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w.WriteUInt32(uint32(len(payload) + 4))
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w.Write(payload)
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}
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func (w *Writer) WriteStringShort(v string) {
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w.WriteBytesShort([]byte(v))
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}
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func (w *Writer) WriteBool(b bool) {
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if b {
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w.WriteByte(0x01)
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} else {
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w.WriteByte(0x00)
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}
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}
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func (w *Writer) EncryptAndWrite(key []byte, data []byte) {
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tea := NewTeaCipher(key)
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ed := tea.Encrypt(data)
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w.Write(ed)
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}
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func (w *Writer) WriteIntLvPacket(offset int, f func(writer *Writer)) {
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data := NewWriterF(f)
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w.WriteUInt32(uint32(len(data) + offset))
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w.Write(data)
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}
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func (w *Writer) WriteUniPacket(commandName string, sessionId, extraData, body []byte) {
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w1 := NewWriter()
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{ // WriteIntLvPacket
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w1.WriteString(commandName)
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w1.WriteUInt32(8)
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w1.Write(sessionId)
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if len(extraData) == 0 {
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w1.WriteUInt32(0x04)
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} else {
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w1.WriteUInt32(uint32(len(extraData) + 4))
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w1.Write(extraData)
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}
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}
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data := w1.Bytes()
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w.WriteUInt32(uint32(len(data) + 4))
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w.Write(data)
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PutBuffer(w1)
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w.WriteUInt32(uint32(len(body) + 4)) // WriteIntLvPacket
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w.Write(body)
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}
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func (w *Writer) WriteBytesShort(data []byte) {
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w.WriteUInt16(uint16(len(data)))
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w.Write(data)
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}
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func (w *Writer) WriteTlvLimitedSize(data []byte, limit int) {
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if len(data) <= limit {
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w.WriteBytesShort(data)
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return
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}
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w.WriteBytesShort(data[:limit])
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}
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func (w *Writer) Bytes() []byte {
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return (*bytes.Buffer)(w).Bytes()
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}
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func (w *Writer) Cap() int {
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return (*bytes.Buffer)(w).Cap()
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}
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func (w *Writer) Reset() {
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(*bytes.Buffer)(w).Reset()
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}
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func (w *Writer) Grow(n int) {
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(*bytes.Buffer)(w).Grow(n)
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}
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