71 lines
1.5 KiB
Go
71 lines
1.5 KiB
Go
package main
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import (
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"anytls/proxy"
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"anytls/proxy/padding"
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"anytls/proxy/session"
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"context"
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"crypto/tls"
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"encoding/binary"
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"net"
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"github.com/sagernet/sing/common/buf"
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M "github.com/sagernet/sing/common/metadata"
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)
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type myClient struct {
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serverAddr string
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tlsConfig *tls.Config
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sessionClient *session.Client
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}
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func NewMyClient(ctx context.Context, serverAddr string, tlsConfig *tls.Config) *myClient {
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s := &myClient{
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serverAddr: serverAddr,
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tlsConfig: tlsConfig,
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}
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s.sessionClient = session.NewClient(ctx)
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return s
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}
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func (c *myClient) CreateProxy(ctx context.Context, destination M.Socksaddr) (net.Conn, error) {
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conn, err := c.sessionClient.CreateStream(ctx, c.CreateOutboundTLSConnection)
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if err != nil {
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return nil, err
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}
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err = M.SocksaddrSerializer.WriteAddrPort(conn, destination)
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if err != nil {
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conn.Close()
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return nil, err
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}
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return conn, nil
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}
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func (c *myClient) CreateOutboundTLSConnection(ctx context.Context) (net.Conn, error) {
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conn, err := proxy.SystemDialer.DialContext(ctx, "tcp", c.serverAddr)
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if err != nil {
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return nil, err
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}
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b := buf.NewPacket()
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b.Write(passwordSha256)
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var paddingLen int
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if pad := padding.DefaultPaddingFactory.Load().GenerateRecordPayloadSizes(0); len(pad) > 0 {
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paddingLen = pad[0]
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}
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binary.BigEndian.PutUint16(b.Extend(2), uint16(paddingLen))
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if paddingLen > 0 {
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b.WriteZeroN(paddingLen)
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}
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conn = tls.Client(conn, c.tlsConfig)
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_, err = b.WriteTo(conn)
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if err != nil {
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conn.Close()
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return nil, err
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}
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return conn, nil
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}
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