forked from Monibuca/engine
/
remote.go
165 lines (153 loc) · 4.01 KB
/
remote.go
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package config
import (
"bufio"
"context"
"crypto/tls"
"encoding/json"
"io"
"net"
"net/http"
"strings"
"time"
"github.com/quic-go/quic-go"
"m7s.live/engine/v4/log"
)
type myResponseWriter2 struct {
quic.Stream
myResponseWriter
}
type myResponseWriter3 struct {
handshake bool
myResponseWriter2
quic.Connection
}
func (w *myResponseWriter3) Write(b []byte) (int, error) {
if !w.handshake {
w.handshake = true
return len(b), nil
}
println(string(b))
return w.Stream.Write(b)
}
func (w *myResponseWriter3) Hijack() (net.Conn, *bufio.ReadWriter, error) {
return net.Conn(w), bufio.NewReadWriter(bufio.NewReader(w), bufio.NewWriter(w)), nil
}
func (cfg *Engine) WtRemote(ctx context.Context) {
retryDelay := [...]int{2, 3, 5, 8, 13}
for i := 0; ctx.Err() == nil; i++ {
connected, err := cfg.Remote(ctx)
if err == nil {
//不需要重试了,服务器返回了错误
return
}
if Global.LogLang == "zh" {
log.Error("连接到控制台服务器", cfg.Server, "失败", err)
} else {
log.Error("connect to console server ", cfg.Server, " ", err)
}
if connected {
i = 0
} else if i >= 5 {
i = 4
}
time.Sleep(time.Second * time.Duration(retryDelay[i]))
}
}
func (cfg *Engine) Remote(ctx context.Context) (wasConnected bool, err error) {
tlsConf := &tls.Config{
InsecureSkipVerify: true,
NextProtos: []string{"monibuca"},
}
conn, err := quic.DialAddr(ctx, cfg.Server, tlsConf, &quic.Config{
KeepAlivePeriod: time.Second * 10,
EnableDatagrams: true,
})
wasConnected = err == nil
if stream := quic.Stream(nil); err == nil {
if stream, err = conn.OpenStreamSync(ctx); err == nil {
_, err = stream.Write(append([]byte{1}, (cfg.Secret + "\n")...))
if msg := []byte(nil); err == nil {
if msg, err = bufio.NewReader(stream).ReadSlice(0); err == nil {
var rMessage map[string]any
if err = json.Unmarshal(msg[:len(msg)-1], &rMessage); err == nil {
if rMessage["code"].(float64) != 0 {
if Global.LogLang == "zh" {
log.Error("控制台服务器", cfg.Server, "返回错误", rMessage["msg"])
} else {
log.Error("response from console server ", cfg.Server, " ", rMessage["msg"])
}
return false, nil
} else {
cfg.reportStream = stream
if Global.LogLang == "zh" {
log.Info("连接到控制台服务器", cfg.Server, "成功", rMessage)
} else {
log.Info("response from console server ", cfg.Server, " success ", rMessage)
}
if v, ok := rMessage["enableReport"]; ok {
cfg.enableReport = v.(bool)
}
if v, ok := rMessage["instanceId"]; ok {
cfg.instanceId = v.(string)
}
}
}
}
}
}
}
for err == nil {
var s quic.Stream
if s, err = conn.AcceptStream(ctx); err == nil {
go cfg.ReceiveRequest(s, conn)
}
}
return wasConnected, err
}
func (cfg *Engine) ReceiveRequest(s quic.Stream, conn quic.Connection) error {
defer s.Close()
wr := &myResponseWriter2{Stream: s}
reader := bufio.NewReader(s)
var req *http.Request
url, _, err := reader.ReadLine()
if err == nil {
ctx, cancel := context.WithCancel(s.Context())
defer cancel()
req, err = http.NewRequestWithContext(ctx, "GET", string(url), reader)
for err == nil {
var h []byte
if h, _, err = reader.ReadLine(); len(h) > 0 {
if b, a, f := strings.Cut(string(h), ": "); f {
req.Header.Set(b, a)
}
} else {
break
}
}
if err == nil {
h, _ := cfg.mux.Handler(req)
if req.Header.Get("Accept") == "text/event-stream" {
go h.ServeHTTP(wr, req)
} else if req.Header.Get("Upgrade") == "websocket" {
var writer myResponseWriter3
writer.Stream = s
writer.Connection = conn
req.Host = req.Header.Get("Host")
if req.Host == "" {
req.Host = req.URL.Host
}
if req.Host == "" {
req.Host = "m7s.live"
}
h.ServeHTTP(&writer, req) //建立websocket连接,握手
} else {
h.ServeHTTP(wr, req)
}
}
io.ReadAll(s)
}
if err != nil {
log.Error("read console server error:", err)
}
return err
}