91 lines
1.9 KiB
Go
91 lines
1.9 KiB
Go
// Package net pack network connection for Minecraft.
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package net
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import (
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"bufio"
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"crypto/cipher"
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"io"
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"net"
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pk "github.com/Tnze/go-mc/net/packet"
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)
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// A Listener is a minecraft Listener
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type Listener struct{ net.Listener }
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//ListenMC listen as TCP but Accept a mc Conn
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func ListenMC(addr string) (*Listener, error) {
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l, err := net.Listen("tcp", addr)
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if err != nil {
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return nil, err
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}
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return &Listener{l}, nil
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}
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//Accept a miencraft Conn
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func (l Listener) Accept() (Conn, error) {
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conn, err := l.Listener.Accept()
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return Conn{
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Socket: conn,
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ByteReader: bufio.NewReader(conn),
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Writer: conn,
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}, err
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}
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//Conn is a minecraft Connection
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type Conn struct {
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Socket net.Conn
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io.ByteReader
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io.Writer
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threshold int
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}
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// DialMC create a Minecraft connection
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func DialMC(addr string) (*Conn, error) {
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conn, err := net.Dial("tcp", addr)
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return &Conn{
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Socket: conn,
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ByteReader: bufio.NewReader(conn),
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Writer: conn,
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}, err
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}
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//Close close the connection
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func (c *Conn) Close() error { return c.Socket.Close() }
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// ReadPacket read a Packet from Conn.
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func (c *Conn) ReadPacket() (pk.Packet, error) {
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p, err := pk.RecvPacket(c.ByteReader, c.threshold > 0)
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if err != nil {
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return pk.Packet{}, err
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}
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return *p, err
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}
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//WritePacket write a Packet to Conn.
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func (c *Conn) WritePacket(p pk.Packet) error {
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_, err := c.Write(p.Pack(c.threshold))
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return err
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}
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// SetCipher load the decode/encode stream to this Conn
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func (c *Conn) SetCipher(encoStream, decoStream cipher.Stream) {
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//加密连接
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c.ByteReader = bufio.NewReader(cipher.StreamReader{ //Set reciver for AES
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S: decoStream,
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R: c.Socket,
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})
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c.Writer = cipher.StreamWriter{
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S: encoStream,
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W: c.Socket,
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}
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}
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// SetThreshold set threshold to Conn.
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// The data packet with length longger then threshold
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// will be compress when sendding.
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func (c *Conn) SetThreshold(t int) {
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c.threshold = t
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}
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