nmdc-webfrontend/vendor/github.com/googollee/go-engine.io/websocket/client.go

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package websocket
import (
"io"
"net/http"
"github.com/googollee/go-engine.io/message"
"github.com/googollee/go-engine.io/parser"
"github.com/googollee/go-engine.io/transport"
"github.com/gorilla/websocket"
)
type client struct {
conn *websocket.Conn
resp *http.Response
}
func NewClient(r *http.Request) (transport.Client, error) {
dialer := websocket.DefaultDialer
conn, resp, err := dialer.Dial(r.URL.String(), r.Header)
if err != nil {
return nil, err
}
return &client{
conn: conn,
resp: resp,
}, nil
}
func (c *client) Response() *http.Response {
return c.resp
}
func (c *client) NextReader() (*parser.PacketDecoder, error) {
var reader io.Reader
for {
t, r, err := c.conn.NextReader()
if err != nil {
return nil, err
}
switch t {
case websocket.TextMessage:
fallthrough
case websocket.BinaryMessage:
reader = r
return parser.NewDecoder(reader)
}
}
}
func (c *client) NextWriter(msgType message.MessageType, packetType parser.PacketType) (io.WriteCloser, error) {
wsType, newEncoder := websocket.TextMessage, parser.NewStringEncoder
if msgType == message.MessageBinary {
wsType, newEncoder = websocket.BinaryMessage, parser.NewBinaryEncoder
}
w, err := c.conn.NextWriter(wsType)
if err != nil {
return nil, err
}
ret, err := newEncoder(w, packetType)
if err != nil {
return nil, err
}
return ret, nil
}
func (c *client) Close() error {
return c.conn.Close()
}