mirror of https://github.com/XTLS/Xray-core
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
77 lines
2.2 KiB
77 lines
2.2 KiB
package mtproto
|
|
|
|
import (
|
|
"context"
|
|
|
|
"github.com/xtls/xray-core/common"
|
|
"github.com/xtls/xray-core/common/buf"
|
|
"github.com/xtls/xray-core/common/crypto"
|
|
"github.com/xtls/xray-core/common/net"
|
|
"github.com/xtls/xray-core/common/session"
|
|
"github.com/xtls/xray-core/common/task"
|
|
"github.com/xtls/xray-core/transport"
|
|
"github.com/xtls/xray-core/transport/internet"
|
|
)
|
|
|
|
type Client struct{}
|
|
|
|
func NewClient(ctx context.Context, config *ClientConfig) (*Client, error) {
|
|
return &Client{}, nil
|
|
}
|
|
|
|
func (c *Client) Process(ctx context.Context, link *transport.Link, dialer internet.Dialer) error {
|
|
outbound := session.OutboundFromContext(ctx)
|
|
if outbound == nil || !outbound.Target.IsValid() {
|
|
return newError("unknown destination.")
|
|
}
|
|
dest := outbound.Target
|
|
if dest.Network != net.Network_TCP {
|
|
return newError("not TCP traffic", dest)
|
|
}
|
|
|
|
conn, err := dialer.Dial(ctx, dest)
|
|
if err != nil {
|
|
return newError("failed to dial to ", dest).Base(err).AtWarning()
|
|
}
|
|
defer conn.Close()
|
|
|
|
sc := SessionContextFromContext(ctx)
|
|
auth := NewAuthentication(sc)
|
|
defer putAuthenticationObject(auth)
|
|
|
|
request := func() error {
|
|
encryptor := crypto.NewAesCTRStream(auth.EncodingKey[:], auth.EncodingNonce[:])
|
|
|
|
var header [HeaderSize]byte
|
|
encryptor.XORKeyStream(header[:], auth.Header[:])
|
|
copy(header[:56], auth.Header[:])
|
|
|
|
if _, err := conn.Write(header[:]); err != nil {
|
|
return newError("failed to write auth header").Base(err)
|
|
}
|
|
|
|
connWriter := buf.NewWriter(crypto.NewCryptionWriter(encryptor, conn))
|
|
return buf.Copy(link.Reader, connWriter)
|
|
}
|
|
|
|
response := func() error {
|
|
decryptor := crypto.NewAesCTRStream(auth.DecodingKey[:], auth.DecodingNonce[:])
|
|
|
|
connReader := buf.NewReader(crypto.NewCryptionReader(decryptor, conn))
|
|
return buf.Copy(connReader, link.Writer)
|
|
}
|
|
|
|
responseDoneAndCloseWriter := task.OnSuccess(response, task.Close(link.Writer))
|
|
if err := task.Run(ctx, request, responseDoneAndCloseWriter); err != nil {
|
|
return newError("connection ends").Base(err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func init() {
|
|
common.Must(common.RegisterConfig((*ClientConfig)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
|
|
return NewClient(ctx, config.(*ClientConfig))
|
|
}))
|
|
}
|