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Server manager support the NewUserConn operation (#1740)

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support NewUserConn operation
pull/1762/head
zhang-wei 5 years ago committed by GitHub
parent 1c330185c4
commit ad0c449a75
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 166 additions and 4 deletions
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21
doc/server_plugin.md
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@ -70,7 +70,7 @@ The response can look like any of the following:
### Operation
Currently `Login`, `NewProxy`, `Ping` and `NewWorkConn` operations are supported.
Currently `Login`, `NewProxy`, `Ping`, `NewWorkConn` and `NewUserConn` operations are supported.
#### Login
@ -172,6 +172,25 @@ New work connection received from frpc (RPC sent after `run_id` is matched with
}
```
#### NewUserConn
New user connection received from proxy (support `tcp`, `stcp`, `https` and `tcpmux`) .
```
{
"content": {
"user": {
"user": <string>,
"metas": map<string>string
"run_id": <string>
},
"proxy_name": <string>,
"proxy_type": <string>,
"remote_addr": <string>
}
}
```
### Server Plugin Configuration
```ini

59
doc/server_plugin_zh.md
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@ -69,7 +69,7 @@ Response
### 操作类型
目前插件支持管理的操作类型有 `Login` 和 `NewProxy`。
目前插件支持管理的操作类型有 `Login`、`NewProxy`、`Ping`、`NewWorkConn` 和 `NewUserConn`。
#### Login
@ -127,6 +127,63 @@ Response
}
```
#### Ping
心跳相关信息
```
{
"content": {
"user": {
"user": <string>,
"metas": map<string>string
"run_id": <string>
},
"timestamp": <int64>,
"privilege_key": <string>
}
}
```
#### NewWorkConn
新增 `frpc` 连接相关信息
```
{
"content": {
"user": {
"user": <string>,
"metas": map<string>string
"run_id": <string>
},
"run_id": <string>
"timestamp": <int64>,
"privilege_key": <string>
}
}
```
#### NewUserConn
新增 `proxy` 连接相关信息 (支持 `tcp`、`stcp`、`https` 和 `tcpmux` 协议)。
```
{
"content": {
"user": {
"user": <string>,
"metas": map<string>string
"run_id": <string>
},
"proxy_name": <string>,
"proxy_type": <string>,
"remote_addr": <string>
}
}
```
### frps 中插件配置
```ini

39
models/plugin/server/manager.go
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@ -28,6 +28,7 @@ type Manager struct {
newProxyPlugins []Plugin
pingPlugins []Plugin
newWorkConnPlugins []Plugin
newUserConnPlugins []Plugin
}
func NewManager() *Manager {
@ -36,6 +37,7 @@ func NewManager() *Manager {
newProxyPlugins: make([]Plugin, 0),
pingPlugins: make([]Plugin, 0),
newWorkConnPlugins: make([]Plugin, 0),
newUserConnPlugins: make([]Plugin, 0),
}
}
@ -52,6 +54,9 @@ func (m *Manager) Register(p Plugin) {
if p.IsSupport(OpNewWorkConn) {
m.pingPlugins = append(m.pingPlugins, p)
}
if p.IsSupport(OpNewUserConn) {
m.newUserConnPlugins = append(m.newUserConnPlugins, p)
}
}
func (m *Manager) Login(content *LoginContent) (*LoginContent, error) {
@ -189,3 +194,37 @@ func (m *Manager) NewWorkConn(content *NewWorkConnContent) (*NewWorkConnContent,
}
return content, nil
}
func (m *Manager) NewUserConn(content *NewUserConnContent) (*NewUserConnContent, error) {
if len(m.newUserConnPlugins) == 0 {
return content, nil
}
var (
res = &Response{
Reject: false,
Unchange: true,
}
retContent interface{}
err error
)
reqid, _ := util.RandId()
xl := xlog.New().AppendPrefix("reqid: " + reqid)
ctx := xlog.NewContext(context.Background(), xl)
ctx = NewReqidContext(ctx, reqid)
for _, p := range m.newUserConnPlugins {
res, retContent, err = p.Handle(ctx, OpNewUserConn, *content)
if err != nil {
xl.Info("send NewUserConn request to plugin [%s] error: %v", p.Name(), err)
return nil, errors.New("send NewUserConn request to plugin error")
}
if res.Reject {
return nil, fmt.Errorf("%s", res.RejectReason)
}
if !res.Unchange {
content = retContent.(*NewUserConnContent)
}
}
return content, nil
}

1
models/plugin/server/plugin.go
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@ -25,6 +25,7 @@ const (
OpNewProxy = "NewProxy"
OpPing = "Ping"
OpNewWorkConn = "NewWorkConn"
OpNewUserConn = "NewUserConn"
)
type Plugin interface {

7
models/plugin/server/types.go
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@ -55,3 +55,10 @@ type NewWorkConnContent struct {
User UserInfo `json:"user"`
msg.NewWorkConn
}
type NewUserConnContent struct {
User UserInfo `json:"user"`
ProxyName string `json:"proxy_name"`
ProxyType string `json:"proxy_type"`
RemoteAddr string `json:"remote_addr"`
}

9
server/control.go
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@ -486,9 +486,16 @@ func (ctl *Control) RegisterProxy(pxyMsg *msg.NewProxy) (remoteAddr string, err
return
}
// User info
userInfo := plugin.UserInfo{
User: ctl.loginMsg.User,
Metas: ctl.loginMsg.Metas,
RunId: ctl.runId,
}
// NewProxy will return a interface Proxy.
// In fact it create different proxies by different proxy type, we just call run() here.
pxy, err := proxy.NewProxy(ctl.ctx, ctl.runId, ctl.rc, ctl.poolCount, ctl.GetWorkConn, pxyConf, ctl.serverCfg)
pxy, err := proxy.NewProxy(ctl.ctx, userInfo, ctl.rc, ctl.poolCount, ctl.GetWorkConn, pxyConf, ctl.serverCfg)
if err != nil {
return remoteAddr, err
}

4
server/controller/resource.go
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@ -16,6 +16,7 @@ package controller
import (
"github.com/fatedier/frp/models/nathole"
plugin "github.com/fatedier/frp/models/plugin/server"
"github.com/fatedier/frp/server/group"
"github.com/fatedier/frp/server/ports"
"github.com/fatedier/frp/utils/tcpmux"
@ -50,4 +51,7 @@ type ResourceController struct {
// TcpMux HTTP CONNECT multiplexer
TcpMuxHttpConnectMuxer *tcpmux.HttpConnectTcpMuxer
// All server manager plugin
PluginManager *plugin.Manager
}

29
server/proxy/proxy.go
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@ -24,6 +24,7 @@ import (
"github.com/fatedier/frp/models/config"
"github.com/fatedier/frp/models/msg"
plugin "github.com/fatedier/frp/models/plugin/server"
"github.com/fatedier/frp/server/controller"
"github.com/fatedier/frp/server/metrics"
frpNet "github.com/fatedier/frp/utils/net"
@ -41,6 +42,8 @@ type Proxy interface {
GetConf() config.ProxyConf
GetWorkConnFromPool(src, dst net.Addr) (workConn net.Conn, err error)
GetUsedPortsNum() int
GetResourceController() *controller.ResourceController
GetUserInfo() plugin.UserInfo
Close()
}
@ -52,6 +55,7 @@ type BaseProxy struct {
poolCount int
getWorkConnFn GetWorkConnFn
serverCfg config.ServerCommonConf
userInfo plugin.UserInfo
mu sync.RWMutex
xl *xlog.Logger
@ -70,6 +74,14 @@ func (pxy *BaseProxy) GetUsedPortsNum() int {
return pxy.usedPortsNum
}
func (pxy *BaseProxy) GetResourceController() *controller.ResourceController {
return pxy.rc
}
func (pxy *BaseProxy) GetUserInfo() plugin.UserInfo {
return pxy.userInfo
}
func (pxy *BaseProxy) Close() {
xl := xlog.FromContextSafe(pxy.ctx)
xl.Info("proxy closing")
@ -154,7 +166,7 @@ func (pxy *BaseProxy) startListenHandler(p Proxy, handler func(Proxy, net.Conn,
}
}
func NewProxy(ctx context.Context, runId string, rc *controller.ResourceController, poolCount int,
func NewProxy(ctx context.Context, userInfo plugin.UserInfo, rc *controller.ResourceController, poolCount int,
getWorkConnFn GetWorkConnFn, pxyConf config.ProxyConf, serverCfg config.ServerCommonConf) (pxy Proxy, err error) {
xl := xlog.FromContextSafe(ctx).Spawn().AppendPrefix(pxyConf.GetBaseInfo().ProxyName)
@ -167,6 +179,7 @@ func NewProxy(ctx context.Context, runId string, rc *controller.ResourceControll
serverCfg: serverCfg,
xl: xl,
ctx: xlog.NewContext(ctx, xl),
userInfo: userInfo,
}
switch cfg := pxyConf.(type) {
case *config.TcpProxyConf:
@ -218,6 +231,20 @@ func HandleUserTcpConnection(pxy Proxy, userConn net.Conn, serverCfg config.Serv
xl := xlog.FromContextSafe(pxy.Context())
defer userConn.Close()
// server plugin hook
rc := pxy.GetResourceController()
content := &plugin.NewUserConnContent{
User: pxy.GetUserInfo(),
ProxyName: pxy.GetName(),
ProxyType: pxy.GetConf().GetBaseInfo().ProxyType,
RemoteAddr: userConn.RemoteAddr().String(),
}
_, err := rc.PluginManager.NewUserConn(content)
if err != nil {
xl.Warn("the user conn [%s] was rejected, err:%v", content.RemoteAddr, err)
return
}
// try all connections from the pool
workConn, err := pxy.GetWorkConnFromPool(userConn.RemoteAddr(), userConn.LocalAddr())
if err != nil {

1
server/service.go
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@ -119,6 +119,7 @@ func NewService(cfg config.ServerCommonConf) (svr *Service, err error) {
svr.pluginManager.Register(plugin.NewHTTPPluginOptions(options))
log.Info("plugin [%s] has been registered", name)
}
svr.rc.PluginManager = svr.pluginManager
// Init group controller
svr.rc.TcpGroupCtl = group.NewTcpGroupCtl(svr.rc.TcpPortManager)

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