mirror of https://github.com/v2ray/v2ray-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.
106 lines
2.1 KiB
106 lines
2.1 KiB
package websocket
|
|
|
|
import (
|
|
"io"
|
|
"net"
|
|
"time"
|
|
|
|
"github.com/gorilla/websocket"
|
|
"v2ray.com/core/common/buf"
|
|
"v2ray.com/core/common/errors"
|
|
)
|
|
|
|
var (
|
|
_ buf.Writer = (*connection)(nil)
|
|
)
|
|
|
|
// connection is a wrapper for net.Conn over WebSocket connection.
|
|
type connection struct {
|
|
conn *websocket.Conn
|
|
reader io.Reader
|
|
|
|
mergingWriter *buf.BufferedWriter
|
|
}
|
|
|
|
func newConnection(conn *websocket.Conn) *connection {
|
|
return &connection{
|
|
conn: conn,
|
|
}
|
|
}
|
|
|
|
// Read implements net.Conn.Read()
|
|
func (c *connection) Read(b []byte) (int, error) {
|
|
for {
|
|
reader, err := c.getReader()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
nBytes, err := reader.Read(b)
|
|
if errors.Cause(err) == io.EOF {
|
|
c.reader = nil
|
|
continue
|
|
}
|
|
return nBytes, err
|
|
}
|
|
}
|
|
|
|
func (c *connection) getReader() (io.Reader, error) {
|
|
if c.reader != nil {
|
|
return c.reader, nil
|
|
}
|
|
|
|
_, reader, err := c.conn.NextReader()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
c.reader = reader
|
|
return reader, nil
|
|
}
|
|
|
|
// Write implements io.Writer.
|
|
func (c *connection) Write(b []byte) (int, error) {
|
|
if err := c.conn.WriteMessage(websocket.BinaryMessage, b); err != nil {
|
|
return 0, err
|
|
}
|
|
return len(b), nil
|
|
}
|
|
|
|
func (c *connection) WriteMultiBuffer(mb buf.MultiBuffer) error {
|
|
if c.mergingWriter == nil {
|
|
c.mergingWriter = buf.NewBufferedWriter(buf.NewBufferToBytesWriter(c))
|
|
}
|
|
if err := c.mergingWriter.WriteMultiBuffer(mb); err != nil {
|
|
return err
|
|
}
|
|
return c.mergingWriter.Flush()
|
|
}
|
|
|
|
func (c *connection) Close() error {
|
|
c.conn.WriteControl(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, ""), time.Now().Add(time.Second*5))
|
|
return c.conn.Close()
|
|
}
|
|
|
|
func (c *connection) LocalAddr() net.Addr {
|
|
return c.conn.LocalAddr()
|
|
}
|
|
|
|
func (c *connection) RemoteAddr() net.Addr {
|
|
return c.conn.RemoteAddr()
|
|
}
|
|
|
|
func (c *connection) SetDeadline(t time.Time) error {
|
|
if err := c.SetReadDeadline(t); err != nil {
|
|
return err
|
|
}
|
|
return c.SetWriteDeadline(t)
|
|
}
|
|
|
|
func (c *connection) SetReadDeadline(t time.Time) error {
|
|
return c.conn.SetReadDeadline(t)
|
|
}
|
|
|
|
func (c *connection) SetWriteDeadline(t time.Time) error {
|
|
return c.conn.SetWriteDeadline(t)
|
|
}
|