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nnet/server_ws.go

105 lines
2.8 KiB
Go

package nnet
import (
"fmt"
"git.noahlan.cn/noahlan/nnet/config"
"git.noahlan.cn/noahlan/nnet/connection"
"git.noahlan.cn/noahlan/ntool/nlog"
"github.com/gorilla/websocket"
"net/http"
"os"
"strings"
)
type WsConfOption func(conf config.WSServerFullConf)
func WithWSCheckOrigin(fn func(*http.Request) bool) WsConfOption {
return func(conf config.WSServerFullConf) {
conf.CheckOrigin = fn
}
}
// ListenWebsocket 开始监听Websocket
func (ngin *Engine) ListenWebsocket(conf config.WSServerFullConf, opts ...WsConfOption) error {
for _, opt := range opts {
opt(conf)
}
err := ngin.setup()
if err != nil {
nlog.Errorf("%s failed to setup server, err:%v", ngin.LogPrefix(), err)
return err
}
nlog.Infof("%s now listening websocket at %s.", ngin.LogPrefix(), conf.Addr)
ngin.upgradeWebsocket(conf)
if conf.IsTLS() {
if err := http.ListenAndServeTLS(conf.Addr, conf.TLSCertificate, conf.TLSKey, nil); err != nil {
nlog.Errorf("%s failed to listening websocket with TLS at %s %v", ngin.LogPrefix(), conf.Addr, err)
return err
}
} else {
if err := http.ListenAndServe(conf.Addr, nil); err != nil {
nlog.Errorf("%s failed to listening websocket at %s %v", ngin.LogPrefix(), conf.Addr, err)
return err
}
}
return nil
}
func (ngin *Engine) handleWS(conn *websocket.Conn, conf config.WSServerFullConf) {
wsConn := connection.NewWSConn(conn)
//defaultCloseHandler := conn.CloseHandler()
//conn.SetCloseHandler(func(code int, text string) error {
// result := defaultCloseHandler(code, text)
// //wsConn.Close()
// return result
//})
// ping
defaultPingHandler := wsConn.PingHandler()
wsConn.SetPingHandler(func(appData string) error {
if conf.PingHandler != nil {
conf.PingHandler(appData)
}
return defaultPingHandler(appData)
})
// pong
defaultPongHandler := wsConn.PongHandler()
wsConn.SetPongHandler(func(appData string) error {
if conf.PongHandler != nil {
conf.PongHandler(appData)
}
return defaultPongHandler(appData)
})
ngin.handle(wsConn)
}
func (ngin *Engine) upgradeWebsocket(conf config.WSServerFullConf) {
upgrade := websocket.Upgrader{
HandshakeTimeout: conf.HandshakeTimeout,
ReadBufferSize: conf.ReadBufferSize,
WriteBufferSize: conf.WriteBufferSize,
CheckOrigin: conf.CheckOrigin,
EnableCompression: conf.Compression,
}
path := fmt.Sprintf("/%s", strings.TrimPrefix(conf.Path, "/"))
http.HandleFunc(path, func(writer http.ResponseWriter, request *http.Request) {
conn, err := upgrade.Upgrade(writer, request, nil)
if err != nil {
nlog.Errorf("%s Upgrade failure, URI=%ng, Error=%ng", ngin.LogPrefix(), request.RequestURI, err.Error())
return
}
err = ngin.goPool.Submit(func() {
ngin.handleWS(conn, conf)
})
if err != nil {
nlog.Errorf("%s submit conn pool err: %v", ngin.LogPrefix(), err.Error())
os.Exit(1)
}
})
}