frp/models/config/proxy.go
2017-06-26 03:02:33 +08:00

579 lines
14 KiB
Go

// Copyright 2016 fatedier, fatedier@gmail.com
//
// 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 config
import (
"fmt"
"reflect"
"strconv"
"strings"
"github.com/fatedier/frp/models/consts"
"github.com/fatedier/frp/models/msg"
"github.com/fatedier/frp/utils/util"
ini "github.com/vaughan0/go-ini"
)
var proxyConfTypeMap map[string]reflect.Type
func init() {
proxyConfTypeMap = make(map[string]reflect.Type)
proxyConfTypeMap[consts.TcpProxy] = reflect.TypeOf(TcpProxyConf{})
proxyConfTypeMap[consts.UdpProxy] = reflect.TypeOf(UdpProxyConf{})
proxyConfTypeMap[consts.HttpProxy] = reflect.TypeOf(HttpProxyConf{})
proxyConfTypeMap[consts.HttpsProxy] = reflect.TypeOf(HttpsProxyConf{})
proxyConfTypeMap[consts.StcpProxy] = reflect.TypeOf(StcpProxyConf{})
}
// NewConfByType creates a empty ProxyConf object by proxyType.
// If proxyType isn't exist, return nil.
func NewConfByType(proxyType string) ProxyConf {
v, ok := proxyConfTypeMap[proxyType]
if !ok {
return nil
}
cfg := reflect.New(v).Interface().(ProxyConf)
return cfg
}
type ProxyConf interface {
GetName() string
GetBaseInfo() *BaseProxyConf
LoadFromMsg(pMsg *msg.NewProxy)
LoadFromFile(name string, conf ini.Section) error
UnMarshalToMsg(pMsg *msg.NewProxy)
Check() error
}
func NewProxyConf(pMsg *msg.NewProxy) (cfg ProxyConf, err error) {
if pMsg.ProxyType == "" {
pMsg.ProxyType = consts.TcpProxy
}
cfg = NewConfByType(pMsg.ProxyType)
if cfg == nil {
err = fmt.Errorf("proxy [%s] type [%s] error", pMsg.ProxyName, pMsg.ProxyType)
return
}
cfg.LoadFromMsg(pMsg)
err = cfg.Check()
return
}
func NewProxyConfFromFile(name string, section ini.Section) (cfg ProxyConf, err error) {
proxyType := section["type"]
if proxyType == "" {
proxyType = consts.TcpProxy
section["type"] = consts.TcpProxy
}
cfg = NewConfByType(proxyType)
if cfg == nil {
err = fmt.Errorf("proxy [%s] type [%s] error", name, proxyType)
return
}
err = cfg.LoadFromFile(name, section)
return
}
// BaseProxy info
type BaseProxyConf struct {
ProxyName string `json:"proxy_name"`
ProxyType string `json:"proxy_type"`
UseEncryption bool `json:"use_encryption"`
UseCompression bool `json:"use_compression"`
}
func (cfg *BaseProxyConf) GetName() string {
return cfg.ProxyName
}
func (cfg *BaseProxyConf) GetBaseInfo() *BaseProxyConf {
return cfg
}
func (cfg *BaseProxyConf) LoadFromMsg(pMsg *msg.NewProxy) {
cfg.ProxyName = pMsg.ProxyName
cfg.ProxyType = pMsg.ProxyType
cfg.UseEncryption = pMsg.UseEncryption
cfg.UseCompression = pMsg.UseCompression
}
func (cfg *BaseProxyConf) LoadFromFile(name string, section ini.Section) error {
var (
tmpStr string
ok bool
)
if ClientCommonCfg.User != "" {
cfg.ProxyName = ClientCommonCfg.User + "." + name
} else {
cfg.ProxyName = name
}
cfg.ProxyType = section["type"]
tmpStr, ok = section["use_encryption"]
if ok && tmpStr == "true" {
cfg.UseEncryption = true
}
tmpStr, ok = section["use_compression"]
if ok && tmpStr == "true" {
cfg.UseCompression = true
}
return nil
}
func (cfg *BaseProxyConf) UnMarshalToMsg(pMsg *msg.NewProxy) {
pMsg.ProxyName = cfg.ProxyName
pMsg.ProxyType = cfg.ProxyType
pMsg.UseEncryption = cfg.UseEncryption
pMsg.UseCompression = cfg.UseCompression
}
// Bind info
type BindInfoConf struct {
BindAddr string `json:"bind_addr"`
RemotePort int64 `json:"remote_port"`
}
func (cfg *BindInfoConf) LoadFromMsg(pMsg *msg.NewProxy) {
cfg.BindAddr = ServerCommonCfg.BindAddr
cfg.RemotePort = pMsg.RemotePort
}
func (cfg *BindInfoConf) LoadFromFile(name string, section ini.Section) (err error) {
var (
tmpStr string
ok bool
)
if tmpStr, ok = section["remote_port"]; ok {
if cfg.RemotePort, err = strconv.ParseInt(tmpStr, 10, 64); err != nil {
return fmt.Errorf("Parse conf error: proxy [%s] remote_port error", name)
}
} else {
return fmt.Errorf("Parse conf error: proxy [%s] remote_port not found", name)
}
return nil
}
func (cfg *BindInfoConf) UnMarshalToMsg(pMsg *msg.NewProxy) {
pMsg.RemotePort = cfg.RemotePort
}
func (cfg *BindInfoConf) check() (err error) {
if len(ServerCommonCfg.PrivilegeAllowPorts) != 0 {
if ok := util.ContainsPort(ServerCommonCfg.PrivilegeAllowPorts, cfg.RemotePort); !ok {
return fmt.Errorf("remote port [%d] isn't allowed", cfg.RemotePort)
}
}
return nil
}
// Domain info
type DomainConf struct {
CustomDomains []string `json:"custom_domains"`
SubDomain string `json:"sub_domain"`
}
func (cfg *DomainConf) LoadFromMsg(pMsg *msg.NewProxy) {
cfg.CustomDomains = pMsg.CustomDomains
cfg.SubDomain = pMsg.SubDomain
}
func (cfg *DomainConf) LoadFromFile(name string, section ini.Section) (err error) {
var (
tmpStr string
ok bool
)
if tmpStr, ok = section["custom_domains"]; ok {
cfg.CustomDomains = strings.Split(tmpStr, ",")
for i, domain := range cfg.CustomDomains {
cfg.CustomDomains[i] = strings.ToLower(strings.TrimSpace(domain))
}
}
if tmpStr, ok = section["subdomain"]; ok {
cfg.SubDomain = tmpStr
}
if len(cfg.CustomDomains) == 0 && cfg.SubDomain == "" {
return fmt.Errorf("Parse conf error: proxy [%s] custom_domains and subdomain should set at least one of them", name)
}
return
}
func (cfg *DomainConf) UnMarshalToMsg(pMsg *msg.NewProxy) {
pMsg.CustomDomains = cfg.CustomDomains
pMsg.SubDomain = cfg.SubDomain
}
func (cfg *DomainConf) check() (err error) {
for _, domain := range cfg.CustomDomains {
if ServerCommonCfg.SubDomainHost != "" && len(strings.Split(ServerCommonCfg.SubDomainHost, ".")) < len(strings.Split(domain, ".")) {
if strings.Contains(domain, ServerCommonCfg.SubDomainHost) {
return fmt.Errorf("custom domain [%s] should not belong to subdomain_host [%s]", domain, ServerCommonCfg.SubDomainHost)
}
}
}
if cfg.SubDomain != "" {
if ServerCommonCfg.SubDomainHost == "" {
return fmt.Errorf("subdomain is not supported because this feature is not enabled by frps")
}
if strings.Contains(cfg.SubDomain, ".") || strings.Contains(cfg.SubDomain, "*") {
return fmt.Errorf("'.' and '*' is not supported in subdomain")
}
}
return nil
}
// Local service info
type LocalSvrConf struct {
LocalIp string `json:"-"`
LocalPort int `json:"-"`
}
func (cfg *LocalSvrConf) LoadFromFile(name string, section ini.Section) (err error) {
if cfg.LocalIp = section["local_ip"]; cfg.LocalIp == "" {
cfg.LocalIp = "127.0.0.1"
}
if tmpStr, ok := section["local_port"]; ok {
if cfg.LocalPort, err = strconv.Atoi(tmpStr); err != nil {
return fmt.Errorf("Parse conf error: proxy [%s] local_port error", name)
}
} else {
return fmt.Errorf("Parse conf error: proxy [%s] local_port not found", name)
}
return nil
}
type PluginConf struct {
Plugin string `json:"-"`
PluginParams map[string]string `json:"-"`
}
func (cfg *PluginConf) LoadFromFile(name string, section ini.Section) (err error) {
cfg.Plugin = section["plugin"]
cfg.PluginParams = make(map[string]string)
if cfg.Plugin != "" {
// get params begin with "plugin_"
for k, v := range section {
if strings.HasPrefix(k, "plugin_") {
cfg.PluginParams[k] = v
}
}
} else {
return fmt.Errorf("Parse conf error: proxy [%s] no plugin info found", name)
}
return
}
// TCP
type TcpProxyConf struct {
BaseProxyConf
BindInfoConf
LocalSvrConf
PluginConf
}
func (cfg *TcpProxyConf) LoadFromMsg(pMsg *msg.NewProxy) {
cfg.BaseProxyConf.LoadFromMsg(pMsg)
cfg.BindInfoConf.LoadFromMsg(pMsg)
}
func (cfg *TcpProxyConf) LoadFromFile(name string, section ini.Section) (err error) {
if err = cfg.BaseProxyConf.LoadFromFile(name, section); err != nil {
return
}
if err = cfg.BindInfoConf.LoadFromFile(name, section); err != nil {
return
}
if err = cfg.PluginConf.LoadFromFile(name, section); err != nil {
if err = cfg.LocalSvrConf.LoadFromFile(name, section); err != nil {
return
}
}
return
}
func (cfg *TcpProxyConf) UnMarshalToMsg(pMsg *msg.NewProxy) {
cfg.BaseProxyConf.UnMarshalToMsg(pMsg)
cfg.BindInfoConf.UnMarshalToMsg(pMsg)
}
func (cfg *TcpProxyConf) Check() (err error) {
err = cfg.BindInfoConf.check()
return
}
// UDP
type UdpProxyConf struct {
BaseProxyConf
BindInfoConf
LocalSvrConf
}
func (cfg *UdpProxyConf) LoadFromMsg(pMsg *msg.NewProxy) {
cfg.BaseProxyConf.LoadFromMsg(pMsg)
cfg.BindInfoConf.LoadFromMsg(pMsg)
}
func (cfg *UdpProxyConf) LoadFromFile(name string, section ini.Section) (err error) {
if err = cfg.BaseProxyConf.LoadFromFile(name, section); err != nil {
return
}
if err = cfg.BindInfoConf.LoadFromFile(name, section); err != nil {
return
}
if err = cfg.LocalSvrConf.LoadFromFile(name, section); err != nil {
return
}
return
}
func (cfg *UdpProxyConf) UnMarshalToMsg(pMsg *msg.NewProxy) {
cfg.BaseProxyConf.UnMarshalToMsg(pMsg)
cfg.BindInfoConf.UnMarshalToMsg(pMsg)
}
func (cfg *UdpProxyConf) Check() (err error) {
err = cfg.BindInfoConf.check()
return
}
// HTTP
type HttpProxyConf struct {
BaseProxyConf
DomainConf
LocalSvrConf
PluginConf
Locations []string `json:"locations"`
HostHeaderRewrite string `json:"host_header_rewrite"`
HttpUser string `json:"-"`
HttpPwd string `json:"-"`
}
func (cfg *HttpProxyConf) LoadFromMsg(pMsg *msg.NewProxy) {
cfg.BaseProxyConf.LoadFromMsg(pMsg)
cfg.DomainConf.LoadFromMsg(pMsg)
cfg.Locations = pMsg.Locations
cfg.HostHeaderRewrite = pMsg.HostHeaderRewrite
cfg.HttpUser = pMsg.HttpUser
cfg.HttpPwd = pMsg.HttpPwd
}
func (cfg *HttpProxyConf) LoadFromFile(name string, section ini.Section) (err error) {
if err = cfg.BaseProxyConf.LoadFromFile(name, section); err != nil {
return
}
if err = cfg.DomainConf.LoadFromFile(name, section); err != nil {
return
}
if err = cfg.PluginConf.LoadFromFile(name, section); err != nil {
if err = cfg.LocalSvrConf.LoadFromFile(name, section); err != nil {
return
}
}
var (
tmpStr string
ok bool
)
if tmpStr, ok = section["locations"]; ok {
cfg.Locations = strings.Split(tmpStr, ",")
} else {
cfg.Locations = []string{""}
}
cfg.HostHeaderRewrite = section["host_header_rewrite"]
cfg.HttpUser = section["http_user"]
cfg.HttpPwd = section["http_pwd"]
return
}
func (cfg *HttpProxyConf) UnMarshalToMsg(pMsg *msg.NewProxy) {
cfg.BaseProxyConf.UnMarshalToMsg(pMsg)
cfg.DomainConf.UnMarshalToMsg(pMsg)
pMsg.Locations = cfg.Locations
pMsg.HostHeaderRewrite = cfg.HostHeaderRewrite
pMsg.HttpUser = cfg.HttpUser
pMsg.HttpPwd = cfg.HttpPwd
}
func (cfg *HttpProxyConf) Check() (err error) {
if ServerCommonCfg.VhostHttpPort == 0 {
return fmt.Errorf("type [http] not support when vhost_http_port is not set")
}
err = cfg.DomainConf.check()
return
}
// HTTPS
type HttpsProxyConf struct {
BaseProxyConf
DomainConf
LocalSvrConf
PluginConf
}
func (cfg *HttpsProxyConf) LoadFromMsg(pMsg *msg.NewProxy) {
cfg.BaseProxyConf.LoadFromMsg(pMsg)
cfg.DomainConf.LoadFromMsg(pMsg)
}
func (cfg *HttpsProxyConf) LoadFromFile(name string, section ini.Section) (err error) {
if err = cfg.BaseProxyConf.LoadFromFile(name, section); err != nil {
return
}
if err = cfg.DomainConf.LoadFromFile(name, section); err != nil {
return
}
if err = cfg.PluginConf.LoadFromFile(name, section); err != nil {
if err = cfg.LocalSvrConf.LoadFromFile(name, section); err != nil {
return
}
}
return
}
func (cfg *HttpsProxyConf) UnMarshalToMsg(pMsg *msg.NewProxy) {
cfg.BaseProxyConf.UnMarshalToMsg(pMsg)
cfg.DomainConf.UnMarshalToMsg(pMsg)
}
func (cfg *HttpsProxyConf) Check() (err error) {
if ServerCommonCfg.VhostHttpsPort == 0 {
return fmt.Errorf("type [https] not support when vhost_https_port is not set")
}
err = cfg.DomainConf.check()
return
}
// STCP
type StcpProxyConf struct {
BaseProxyConf
Role string `json:"role"`
Sk string `json:"sk"`
// used in role server
LocalSvrConf
PluginConf
// used in role vistor
ServerName string `json:"server_name"`
BindAddr string `json:"bind_addr"`
BindPort int `json:"bind_port"`
}
// Only for role server.
func (cfg *StcpProxyConf) LoadFromMsg(pMsg *msg.NewProxy) {
cfg.BaseProxyConf.LoadFromMsg(pMsg)
cfg.Sk = pMsg.Sk
}
func (cfg *StcpProxyConf) LoadFromFile(name string, section ini.Section) (err error) {
if err = cfg.BaseProxyConf.LoadFromFile(name, section); err != nil {
return
}
tmpStr := section["role"]
if tmpStr == "server" || tmpStr == "vistor" {
cfg.Role = tmpStr
} else {
cfg.Role = "server"
}
cfg.Sk = section["sk"]
if tmpStr == "vistor" {
prefix := section["prefix"]
cfg.ServerName = prefix + section["server_name"]
if cfg.BindAddr = section["bind_addr"]; cfg.BindAddr == "" {
cfg.BindAddr = "127.0.0.1"
}
if tmpStr, ok := section["bind_port"]; ok {
if cfg.BindPort, err = strconv.Atoi(tmpStr); err != nil {
return fmt.Errorf("Parse conf error: proxy [%s] bind_port error", name)
}
} else {
return fmt.Errorf("Parse conf error: proxy [%s] bind_port not found", name)
}
} else {
if err = cfg.PluginConf.LoadFromFile(name, section); err != nil {
if err = cfg.LocalSvrConf.LoadFromFile(name, section); err != nil {
return
}
}
}
return
}
func (cfg *StcpProxyConf) UnMarshalToMsg(pMsg *msg.NewProxy) {
cfg.BaseProxyConf.UnMarshalToMsg(pMsg)
pMsg.Sk = cfg.Sk
}
func (cfg *StcpProxyConf) Check() (err error) {
return
}
// if len(startProxy) is 0, start all
// otherwise just start proxies in startProxy map
func LoadProxyConfFromFile(prefix string, conf ini.File, startProxy map[string]struct{}) (
proxyConfs map[string]ProxyConf, vistorConfs map[string]ProxyConf, err error) {
if prefix != "" {
prefix += "."
}
startAll := true
if len(startProxy) > 0 {
startAll = false
}
proxyConfs = make(map[string]ProxyConf)
vistorConfs = make(map[string]ProxyConf)
for name, section := range conf {
_, shouldStart := startProxy[name]
if name != "common" && (startAll || shouldStart) {
// some proxy or visotr configure may be used this prefix
section["prefix"] = prefix
cfg, err := NewProxyConfFromFile(name, section)
if err != nil {
return proxyConfs, vistorConfs, err
}
role := section["role"]
if role == "vistor" {
vistorConfs[prefix+name] = cfg
} else {
proxyConfs[prefix+name] = cfg
}
}
}
return
}