mirror of
https://github.com/fatedier/frp.git
synced 2024-12-16 03:31:07 +01:00
164 lines
3.7 KiB
Go
164 lines
3.7 KiB
Go
// Copyright 2017 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 server
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import (
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"fmt"
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"io"
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"sync"
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frpIo "github.com/fatedier/frp/utils/io"
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frpNet "github.com/fatedier/frp/utils/net"
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"github.com/fatedier/frp/utils/util"
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)
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type ControlManager struct {
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// controls indexed by run id
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ctlsByRunId map[string]*Control
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mu sync.RWMutex
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}
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func NewControlManager() *ControlManager {
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return &ControlManager{
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ctlsByRunId: make(map[string]*Control),
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}
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}
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func (cm *ControlManager) Add(runId string, ctl *Control) (oldCtl *Control) {
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cm.mu.Lock()
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defer cm.mu.Unlock()
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oldCtl, ok := cm.ctlsByRunId[runId]
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if ok {
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oldCtl.Replaced(ctl)
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}
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cm.ctlsByRunId[runId] = ctl
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return
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}
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func (cm *ControlManager) GetById(runId string) (ctl *Control, ok bool) {
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cm.mu.RLock()
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defer cm.mu.RUnlock()
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ctl, ok = cm.ctlsByRunId[runId]
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return
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}
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type ProxyManager struct {
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// proxies indexed by proxy name
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pxys map[string]Proxy
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mu sync.RWMutex
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}
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func NewProxyManager() *ProxyManager {
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return &ProxyManager{
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pxys: make(map[string]Proxy),
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}
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}
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func (pm *ProxyManager) Add(name string, pxy Proxy) error {
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pm.mu.Lock()
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defer pm.mu.Unlock()
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if _, ok := pm.pxys[name]; ok {
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return fmt.Errorf("proxy name [%s] is already in use", name)
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}
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pm.pxys[name] = pxy
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return nil
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}
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func (pm *ProxyManager) Del(name string) {
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pm.mu.Lock()
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defer pm.mu.Unlock()
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delete(pm.pxys, name)
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}
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func (pm *ProxyManager) GetByName(name string) (pxy Proxy, ok bool) {
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pm.mu.RLock()
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defer pm.mu.RUnlock()
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pxy, ok = pm.pxys[name]
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return
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}
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// Manager for vistor listeners.
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type VistorManager struct {
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vistorListeners map[string]*frpNet.CustomListener
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skMap map[string]string
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mu sync.RWMutex
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}
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func NewVistorManager() *VistorManager {
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return &VistorManager{
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vistorListeners: make(map[string]*frpNet.CustomListener),
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skMap: make(map[string]string),
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}
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}
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func (vm *VistorManager) Listen(name string, sk string) (l *frpNet.CustomListener, err error) {
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vm.mu.Lock()
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defer vm.mu.Unlock()
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if _, ok := vm.vistorListeners[name]; ok {
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err = fmt.Errorf("custom listener for [%s] is repeated", name)
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return
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}
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l = frpNet.NewCustomListener()
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vm.vistorListeners[name] = l
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vm.skMap[name] = sk
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return
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}
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func (vm *VistorManager) NewConn(name string, conn frpNet.Conn, timestamp int64, signKey string,
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useEncryption bool, useCompression bool) (err error) {
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vm.mu.RLock()
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defer vm.mu.RUnlock()
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if l, ok := vm.vistorListeners[name]; ok {
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var sk string
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if sk = vm.skMap[name]; util.GetAuthKey(sk, timestamp) != signKey {
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err = fmt.Errorf("vistor connection of [%s] auth failed", name)
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return
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}
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var rwc io.ReadWriteCloser = conn
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if useEncryption {
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if rwc, err = frpIo.WithEncryption(rwc, []byte(sk)); err != nil {
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err = fmt.Errorf("create encryption connection failed: %v", err)
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return
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}
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}
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if useCompression {
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rwc = frpIo.WithCompression(rwc)
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}
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err = l.PutConn(frpNet.WrapReadWriteCloserToConn(rwc))
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} else {
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err = fmt.Errorf("custom listener for [%s] doesn't exist", name)
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return
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}
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return
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}
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func (vm *VistorManager) CloseListener(name string) {
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vm.mu.Lock()
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defer vm.mu.Unlock()
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delete(vm.vistorListeners, name)
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delete(vm.skMap, name)
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}
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