mirror of
https://github.com/fatedier/frp.git
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320 lines
11 KiB
Go
320 lines
11 KiB
Go
// Copyright 2016 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 config
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import (
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"fmt"
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"os"
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"strconv"
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"strings"
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ini "github.com/vaughan0/go-ini"
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)
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// ClientCommonConf contains information for a client service. It is
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// recommended to use GetDefaultClientConf instead of creating this object
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// directly, so that all unspecified fields have reasonable default values.
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type ClientCommonConf struct {
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// ServerAddr specifies the address of the server to connect to. By
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// default, this value is "0.0.0.0".
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ServerAddr string `json:"server_addr"`
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// ServerPort specifies the port to connect to the server on. By default,
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// this value is 7000.
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ServerPort int `json:"server_port"`
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// HttpProxy specifies a proxy address to connect to the server through. If
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// this value is "", the server will be connected to directly. By default,
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// this value is read from the "http_proxy" environment variable.
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HttpProxy string `json:"http_proxy"`
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// LogFile specifies a file where logs will be written to. This value will
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// only be used if LogWay is set appropriately. By default, this value is
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// "console".
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LogFile string `json:"log_file"`
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// LogWay specifies the way logging is managed. Valid values are "console"
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// or "file". If "console" is used, logs will be printed to stdout. If
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// "file" is used, logs will be printed to LogFile. By default, this value
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// is "console".
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LogWay string `json:"log_way"`
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// LogLevel specifies the minimum log level. Valid values are "trace",
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// "debug", "info", "warn", and "error". By default, this value is "info".
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LogLevel string `json:"log_level"`
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// LogMaxDays specifies the maximum number of days to store log information
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// before deletion. This is only used if LogWay == "file". By default, this
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// value is 0.
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LogMaxDays int64 `json:"log_max_days"`
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// DisableLogColor disables log colors when LogWay == "console" when set to
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// true. By default, this value is false.
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DisableLogColor bool `json:"disable_log_color"`
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// Token specifies the authorization token used to create keys to be sent
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// to the server. The server must have a matching token for authorization
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// to succeed. By default, this value is "".
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Token string `json:"token"`
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// AdminAddr specifies the address that the admin server binds to. By
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// default, this value is "127.0.0.1".
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AdminAddr string `json:"admin_addr"`
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// AdminPort specifies the port for the admin server to listen on. If this
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// value is 0, the admin server will not be started. By default, this value
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// is 0.
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AdminPort int `json:"admin_port"`
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// AdminUser specifies the username that the admin server will use for
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// login. By default, this value is "admin".
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AdminUser string `json:"admin_user"`
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// AdminPwd specifies the password that the admin server will use for
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// login. By default, this value is "admin".
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AdminPwd string `json:"admin_pwd"`
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// AssetsDir specifies the local directory that the admin server will load
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// resources from. If this value is "", assets will be loaded from the
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// bundled executable using statik. By default, this value is "".
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AssetsDir string `json:"assets_dir"`
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// PoolCount specifies the number of connections the client will make to
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// the server in advance. By default, this value is 0.
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PoolCount int `json:"pool_count"`
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// TcpMux toggles TCP stream multiplexing. This allows multiple requests
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// from a client to share a single TCP connection. If this value is true,
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// the server must have TCP multiplexing enabled as well. By default, this
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// value is true.
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TcpMux bool `json:"tcp_mux"`
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// User specifies a prefix for proxy names to distinguish them from other
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// clients. If this value is not "", proxy names will automatically be
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// changed to "{user}.{proxy_name}". By default, this value is "".
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User string `json:"user"`
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// DnsServer specifies a DNS server address for FRPC to use. If this value
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// is "", the default DNS will be used. By default, this value is "".
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DnsServer string `json:"dns_server"`
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// LoginFailExit controls whether or not the client should exit after a
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// failed login attempt. If false, the client will retry until a login
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// attempt succeeds. By default, this value is true.
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LoginFailExit bool `json:"login_fail_exit"`
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// Start specifies a set of enabled proxies by name. If this set is empty,
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// all supplied proxies are enabled. By default, this value is an empty
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// set.
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Start map[string]struct{} `json:"start"`
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// Protocol specifies the protocol to use when interacting with the server.
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// Valid values are "tcp", "kcp", and "websocket". By default, this value
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// is "tcp".
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Protocol string `json:"protocol"`
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// TLSEnable specifies whether or not TLS should be used when communicating
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// with the server.
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TLSEnable bool `json:"tls_enable"`
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// HeartBeatInterval specifies at what interval heartbeats are sent to the
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// server, in seconds. It is not recommended to change this value. By
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// default, this value is 30.
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HeartBeatInterval int64 `json:"heartbeat_interval"`
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// HeartBeatTimeout specifies the maximum allowed heartbeat response delay
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// before the connection is terminated, in seconds. It is not recommended
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// to change this value. By default, this value is 90.
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HeartBeatTimeout int64 `json:"heartbeat_timeout"`
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// Client meta info
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Metas map[string]string `json:"metas"`
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}
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// GetDefaultClientConf returns a client configuration with default values.
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func GetDefaultClientConf() ClientCommonConf {
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return ClientCommonConf{
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ServerAddr: "0.0.0.0",
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ServerPort: 7000,
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HttpProxy: os.Getenv("http_proxy"),
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LogFile: "console",
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LogWay: "console",
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LogLevel: "info",
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LogMaxDays: 3,
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DisableLogColor: false,
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Token: "",
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AdminAddr: "127.0.0.1",
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AdminPort: 0,
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AdminUser: "",
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AdminPwd: "",
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AssetsDir: "",
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PoolCount: 1,
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TcpMux: true,
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User: "",
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DnsServer: "",
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LoginFailExit: true,
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Start: make(map[string]struct{}),
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Protocol: "tcp",
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TLSEnable: false,
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HeartBeatInterval: 30,
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HeartBeatTimeout: 90,
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Metas: make(map[string]string),
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}
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}
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func UnmarshalClientConfFromIni(content string) (cfg ClientCommonConf, err error) {
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cfg = GetDefaultClientConf()
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conf, err := ini.Load(strings.NewReader(content))
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if err != nil {
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return ClientCommonConf{}, fmt.Errorf("parse ini conf file error: %v", err)
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}
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var (
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tmpStr string
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ok bool
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v int64
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)
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if tmpStr, ok = conf.Get("common", "server_addr"); ok {
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cfg.ServerAddr = tmpStr
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}
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if tmpStr, ok = conf.Get("common", "server_port"); ok {
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v, err = strconv.ParseInt(tmpStr, 10, 64)
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if err != nil {
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err = fmt.Errorf("Parse conf error: invalid server_port")
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return
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}
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cfg.ServerPort = int(v)
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}
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if tmpStr, ok = conf.Get("common", "disable_log_color"); ok && tmpStr == "true" {
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cfg.DisableLogColor = true
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}
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if tmpStr, ok = conf.Get("common", "http_proxy"); ok {
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cfg.HttpProxy = tmpStr
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}
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if tmpStr, ok = conf.Get("common", "log_file"); ok {
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cfg.LogFile = tmpStr
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if cfg.LogFile == "console" {
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cfg.LogWay = "console"
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} else {
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cfg.LogWay = "file"
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}
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}
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if tmpStr, ok = conf.Get("common", "log_level"); ok {
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cfg.LogLevel = tmpStr
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}
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if tmpStr, ok = conf.Get("common", "log_max_days"); ok {
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if v, err = strconv.ParseInt(tmpStr, 10, 64); err == nil {
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cfg.LogMaxDays = v
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}
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}
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if tmpStr, ok = conf.Get("common", "token"); ok {
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cfg.Token = tmpStr
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}
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if tmpStr, ok = conf.Get("common", "admin_addr"); ok {
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cfg.AdminAddr = tmpStr
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}
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if tmpStr, ok = conf.Get("common", "admin_port"); ok {
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if v, err = strconv.ParseInt(tmpStr, 10, 64); err == nil {
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cfg.AdminPort = int(v)
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} else {
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err = fmt.Errorf("Parse conf error: invalid admin_port")
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return
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}
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}
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if tmpStr, ok = conf.Get("common", "admin_user"); ok {
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cfg.AdminUser = tmpStr
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}
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if tmpStr, ok = conf.Get("common", "admin_pwd"); ok {
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cfg.AdminPwd = tmpStr
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}
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if tmpStr, ok = conf.Get("common", "assets_dir"); ok {
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cfg.AssetsDir = tmpStr
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}
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if tmpStr, ok = conf.Get("common", "pool_count"); ok {
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if v, err = strconv.ParseInt(tmpStr, 10, 64); err == nil {
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cfg.PoolCount = int(v)
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}
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}
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if tmpStr, ok = conf.Get("common", "tcp_mux"); ok && tmpStr == "false" {
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cfg.TcpMux = false
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} else {
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cfg.TcpMux = true
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}
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if tmpStr, ok = conf.Get("common", "user"); ok {
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cfg.User = tmpStr
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}
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if tmpStr, ok = conf.Get("common", "dns_server"); ok {
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cfg.DnsServer = tmpStr
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}
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if tmpStr, ok = conf.Get("common", "start"); ok {
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proxyNames := strings.Split(tmpStr, ",")
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for _, name := range proxyNames {
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cfg.Start[strings.TrimSpace(name)] = struct{}{}
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}
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}
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if tmpStr, ok = conf.Get("common", "login_fail_exit"); ok && tmpStr == "false" {
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cfg.LoginFailExit = false
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} else {
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cfg.LoginFailExit = true
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}
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if tmpStr, ok = conf.Get("common", "protocol"); ok {
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// Now it only support tcp and kcp and websocket.
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if tmpStr != "tcp" && tmpStr != "kcp" && tmpStr != "websocket" {
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err = fmt.Errorf("Parse conf error: invalid protocol")
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return
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}
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cfg.Protocol = tmpStr
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}
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if tmpStr, ok = conf.Get("common", "tls_enable"); ok && tmpStr == "true" {
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cfg.TLSEnable = true
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} else {
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cfg.TLSEnable = false
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}
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if tmpStr, ok = conf.Get("common", "heartbeat_timeout"); ok {
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if v, err = strconv.ParseInt(tmpStr, 10, 64); err != nil {
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err = fmt.Errorf("Parse conf error: invalid heartbeat_timeout")
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return
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} else {
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cfg.HeartBeatTimeout = v
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}
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}
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if tmpStr, ok = conf.Get("common", "heartbeat_interval"); ok {
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if v, err = strconv.ParseInt(tmpStr, 10, 64); err != nil {
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err = fmt.Errorf("Parse conf error: invalid heartbeat_interval")
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return
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} else {
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cfg.HeartBeatInterval = v
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}
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}
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for k, v := range conf.Section("common") {
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if strings.HasPrefix(k, "meta_") {
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cfg.Metas[strings.TrimPrefix(k, "meta_")] = v
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}
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}
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return
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}
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func (cfg *ClientCommonConf) Check() (err error) {
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if cfg.HeartBeatInterval <= 0 {
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err = fmt.Errorf("Parse conf error: invalid heartbeat_interval")
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return
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}
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if cfg.HeartBeatTimeout < cfg.HeartBeatInterval {
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err = fmt.Errorf("Parse conf error: invalid heartbeat_timeout, heartbeat_timeout is less than heartbeat_interval")
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return
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}
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return
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}
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