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rename models to pkg (#2005)
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fatedier
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230
pkg/plugin/server/manager.go
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230
pkg/plugin/server/manager.go
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@@ -0,0 +1,230 @@
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// Copyright 2019 fatedier, fatedier@gmail.com
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package plugin
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import (
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"context"
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"errors"
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"fmt"
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"github.com/fatedier/frp/pkg/util/util"
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"github.com/fatedier/frp/pkg/util/xlog"
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)
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type Manager struct {
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loginPlugins []Plugin
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newProxyPlugins []Plugin
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pingPlugins []Plugin
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newWorkConnPlugins []Plugin
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newUserConnPlugins []Plugin
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}
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func NewManager() *Manager {
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return &Manager{
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loginPlugins: make([]Plugin, 0),
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newProxyPlugins: make([]Plugin, 0),
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pingPlugins: make([]Plugin, 0),
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newWorkConnPlugins: make([]Plugin, 0),
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newUserConnPlugins: make([]Plugin, 0),
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}
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}
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func (m *Manager) Register(p Plugin) {
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if p.IsSupport(OpLogin) {
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m.loginPlugins = append(m.loginPlugins, p)
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}
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if p.IsSupport(OpNewProxy) {
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m.newProxyPlugins = append(m.newProxyPlugins, p)
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}
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if p.IsSupport(OpPing) {
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m.pingPlugins = append(m.pingPlugins, p)
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}
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if p.IsSupport(OpNewWorkConn) {
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m.newWorkConnPlugins = append(m.newWorkConnPlugins, p)
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}
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if p.IsSupport(OpNewUserConn) {
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m.newUserConnPlugins = append(m.newUserConnPlugins, p)
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}
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}
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func (m *Manager) Login(content *LoginContent) (*LoginContent, error) {
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if len(m.loginPlugins) == 0 {
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return content, nil
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}
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var (
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res = &Response{
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Reject: false,
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Unchange: true,
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}
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retContent interface{}
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err error
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)
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reqid, _ := util.RandID()
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xl := xlog.New().AppendPrefix("reqid: " + reqid)
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ctx := xlog.NewContext(context.Background(), xl)
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ctx = NewReqidContext(ctx, reqid)
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for _, p := range m.loginPlugins {
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res, retContent, err = p.Handle(ctx, OpLogin, *content)
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if err != nil {
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xl.Warn("send Login request to plugin [%s] error: %v", p.Name(), err)
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return nil, errors.New("send Login request to plugin error")
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}
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if res.Reject {
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return nil, fmt.Errorf("%s", res.RejectReason)
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}
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if !res.Unchange {
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content = retContent.(*LoginContent)
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}
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}
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return content, nil
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}
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func (m *Manager) NewProxy(content *NewProxyContent) (*NewProxyContent, error) {
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if len(m.newProxyPlugins) == 0 {
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return content, nil
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}
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var (
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res = &Response{
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Reject: false,
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Unchange: true,
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}
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retContent interface{}
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err error
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)
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reqid, _ := util.RandID()
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xl := xlog.New().AppendPrefix("reqid: " + reqid)
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ctx := xlog.NewContext(context.Background(), xl)
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ctx = NewReqidContext(ctx, reqid)
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for _, p := range m.newProxyPlugins {
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res, retContent, err = p.Handle(ctx, OpNewProxy, *content)
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if err != nil {
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xl.Warn("send NewProxy request to plugin [%s] error: %v", p.Name(), err)
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return nil, errors.New("send NewProxy request to plugin error")
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}
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if res.Reject {
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return nil, fmt.Errorf("%s", res.RejectReason)
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}
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if !res.Unchange {
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content = retContent.(*NewProxyContent)
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}
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}
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return content, nil
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}
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func (m *Manager) Ping(content *PingContent) (*PingContent, error) {
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if len(m.pingPlugins) == 0 {
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return content, nil
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}
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var (
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res = &Response{
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Reject: false,
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Unchange: true,
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}
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retContent interface{}
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err error
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)
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reqid, _ := util.RandID()
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xl := xlog.New().AppendPrefix("reqid: " + reqid)
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ctx := xlog.NewContext(context.Background(), xl)
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ctx = NewReqidContext(ctx, reqid)
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for _, p := range m.pingPlugins {
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res, retContent, err = p.Handle(ctx, OpPing, *content)
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if err != nil {
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xl.Warn("send Ping request to plugin [%s] error: %v", p.Name(), err)
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return nil, errors.New("send Ping request to plugin error")
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}
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if res.Reject {
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return nil, fmt.Errorf("%s", res.RejectReason)
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}
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if !res.Unchange {
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content = retContent.(*PingContent)
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}
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}
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return content, nil
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}
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func (m *Manager) NewWorkConn(content *NewWorkConnContent) (*NewWorkConnContent, error) {
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if len(m.newWorkConnPlugins) == 0 {
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return content, nil
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}
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var (
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res = &Response{
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Reject: false,
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Unchange: true,
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}
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retContent interface{}
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err error
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)
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reqid, _ := util.RandID()
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xl := xlog.New().AppendPrefix("reqid: " + reqid)
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ctx := xlog.NewContext(context.Background(), xl)
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ctx = NewReqidContext(ctx, reqid)
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for _, p := range m.pingPlugins {
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res, retContent, err = p.Handle(ctx, OpPing, *content)
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if err != nil {
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xl.Warn("send NewWorkConn request to plugin [%s] error: %v", p.Name(), err)
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return nil, errors.New("send NewWorkConn request to plugin error")
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}
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if res.Reject {
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return nil, fmt.Errorf("%s", res.RejectReason)
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}
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if !res.Unchange {
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content = retContent.(*NewWorkConnContent)
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}
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}
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return content, nil
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}
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func (m *Manager) NewUserConn(content *NewUserConnContent) (*NewUserConnContent, error) {
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if len(m.newUserConnPlugins) == 0 {
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return content, nil
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}
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var (
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res = &Response{
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Reject: false,
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Unchange: true,
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}
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retContent interface{}
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err error
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)
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reqid, _ := util.RandID()
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xl := xlog.New().AppendPrefix("reqid: " + reqid)
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ctx := xlog.NewContext(context.Background(), xl)
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ctx = NewReqidContext(ctx, reqid)
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for _, p := range m.newUserConnPlugins {
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res, retContent, err = p.Handle(ctx, OpNewUserConn, *content)
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if err != nil {
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xl.Info("send NewUserConn request to plugin [%s] error: %v", p.Name(), err)
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return nil, errors.New("send NewUserConn request to plugin error")
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}
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if res.Reject {
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return nil, fmt.Errorf("%s", res.RejectReason)
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}
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if !res.Unchange {
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content = retContent.(*NewUserConnContent)
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}
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}
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return content, nil
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}
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