dendrite/cmd/dendrite-demo-pinecone/conn/ws.go
2022-03-30 15:01:22 +01:00

96 lines
2 KiB
Go

// Copyright 2022 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package conn
import (
"io"
"net"
"time"
"github.com/gorilla/websocket"
)
func WrapWebSocketConn(c *websocket.Conn) *WebSocketConn {
return &WebSocketConn{c: c}
}
type WebSocketConn struct {
r io.Reader
c *websocket.Conn
}
func (c *WebSocketConn) Write(p []byte) (int, error) {
err := c.c.WriteMessage(websocket.BinaryMessage, p)
if err != nil {
return 0, err
}
return len(p), nil
}
func (c *WebSocketConn) Read(p []byte) (int, error) {
for {
if c.r == nil {
// Advance to next message.
var err error
_, c.r, err = c.c.NextReader()
if err != nil {
return 0, err
}
}
n, err := c.r.Read(p)
if err == io.EOF {
// At end of message.
c.r = nil
if n > 0 {
return n, nil
} else {
// No data read, continue to next message.
continue
}
}
return n, err
}
}
func (c *WebSocketConn) Close() error {
return c.c.Close()
}
func (c *WebSocketConn) LocalAddr() net.Addr {
return c.c.LocalAddr()
}
func (c *WebSocketConn) RemoteAddr() net.Addr {
return c.c.RemoteAddr()
}
func (c *WebSocketConn) SetDeadline(t time.Time) error {
if err := c.SetReadDeadline(t); err != nil {
return err
}
if err := c.SetWriteDeadline(t); err != nil {
return err
}
return nil
}
func (c *WebSocketConn) SetReadDeadline(t time.Time) error {
return c.c.SetReadDeadline(t)
}
func (c *WebSocketConn) SetWriteDeadline(t time.Time) error {
return c.c.SetWriteDeadline(t)
}