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server.go
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server.go
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// Copyright 2018 github.com/xiaoenai. All Rights Reserved.
//
// 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 socket
import (
"net"
tp "github.com/henrylee2cn/teleport"
"github.com/henrylee2cn/teleport/plugin/auth"
"github.com/henrylee2cn/teleport/plugin/proxy"
micro "github.com/xiaoenai/tp-micro"
"github.com/xiaoenai/tp-micro/clientele"
"github.com/xiaoenai/tp-micro/discovery"
"github.com/xiaoenai/tp-micro/gateway/logic"
websocket "github.com/xiaoenai/tp-micro/gateway/logic/websocket"
)
var (
outerPeer tp.Peer
outerServer *micro.Server
clientAuthInfo string
)
// OuterServeConn serves connetion.
func OuterServeConn(conn net.Conn) {
sess, err := outerServer.ServeConn(conn)
if err != nil {
tp.Errorf("Serve net.Conn error: %v", err)
}
<-sess.CloseNotify()
}
// Serve starts TCP gateway service.
func Serve(outerSrvCfg, innerSrvCfg micro.SrvConfig, protoFunc tp.ProtoFunc) {
outerServer = micro.NewServer(
outerSrvCfg,
authChecker,
socketConnTabPlugin,
proxy.NewPlugin(logic.ProxySelector),
preWritePushPlugin(),
)
outerPeer = outerServer.Peer()
innerPlugins := logic.InnerServerPlugins()
discoveryService := discovery.ServicePluginFromEtcd(
innerSrvCfg.InnerIpPort(),
clientele.GetEtcdClient(),
)
innerPlugins = append(innerPlugins, discoveryService)
innerServer := micro.NewServer(
innerSrvCfg,
innerPlugins...,
)
gwGroup := innerServer.SubRoute("/gw")
{
verGroup := gwGroup.SubRoute(logic.ApiVersion())
{
verGroup.RouteCallFunc((*gw).Hosts)
// socket api
discoveryService.ExcludeApi(verGroup.RouteCallFunc((*gw).SocketTotal))
discoveryService.ExcludeApi(verGroup.RouteCallFunc((*gw).SocketPush))
discoveryService.ExcludeApi(verGroup.RouteCallFunc((*gw).SocketMpush))
discoveryService.ExcludeApi(verGroup.RouteCallFunc((*gw).SocketKick))
// ws api
discoveryService.ExcludeApi(verGroup.RouteCallFunc((*websocket.Gw).WsTotal))
discoveryService.ExcludeApi(verGroup.RouteCallFunc((*websocket.Gw).WsPush))
discoveryService.ExcludeApi(verGroup.RouteCallFunc((*websocket.Gw).WsMpush))
discoveryService.ExcludeApi(verGroup.RouteCallFunc((*websocket.Gw).WsKick))
}
}
go outerServer.ListenAndServe(protoFunc)
go innerServer.ListenAndServe(protoFunc)
select {}
}
// auth plugin
var authChecker = auth.NewCheckerPlugin(
func(sess auth.Session, fn auth.RecvOnce) (ret interface{}, stat *tp.Status) {
var authInfo string
stat = fn(&authInfo)
if !stat.OK() {
return
}
tp.Tracef("auth info: %v", authInfo)
stat = socketConnTabPlugin.authAndLogon(authInfo, sess)
if !stat.OK() {
return
}
return "", nil
},
tp.WithBodyCodec('s'),
)
// preWritePushPlugin returns PreWritePushPlugin.
func preWritePushPlugin() tp.Plugin {
return &perPusher{fn: logic.SocketHooks().PreWritePush}
}
type perPusher struct {
fn func(tp.WriteCtx) *tp.Status
}
func (p *perPusher) Name() string {
return "PUSH-LOGIC"
}
var (
_ tp.PreWritePushPlugin = (*perPusher)(nil)
)
func (p *perPusher) PreWritePush(ctx tp.WriteCtx) *tp.Status {
return p.fn(ctx)
}