Merge pull request #238 from fatedier/dev

bump version to 0.9.3

.dockerignore

@@ -0,0 +1,5 @@
+Dockerfile
+.git
+*~
+*#
+.#*

.gitignore

@@ -25,7 +25,8 @@ _testmain.go
 
 # Self
 bin/
+packages/
+test/bin/
 
 # Cache
 *.swp
-*.swo

.travis.yml

@@ -2,11 +2,12 @@ sudo: false
 language: go
 
 go:
-    - 1.4.2
-    - 1.5.1
+    - 1.5.4
+    - 1.6.4
+    - 1.7.4
 
 install:
     - make
 
 script:
-    - make test
+    - make alltest

Dockerfile

@@ -0,0 +1,17 @@
+FROM golang:1.6
+
+COPY . /go/src/github.com/fatedier/frp
+
+RUN cd /go/src/github.com/fatedier/frp \
+ && make \
+ && mv bin/frpc /frpc \
+ && mv bin/frps /frps \
+ && mv conf/frpc_min.ini /frpc.ini \
+ && mv conf/frps_min.ini /frps.ini \
+ && make clean
+
+WORKDIR /
+
+EXPOSE 80 443 6000 7000 7500
+
+ENTRYPOINT ["/frps"]

Dockerfile_alpine

@@ -0,0 +1,12 @@
+FROM alpine:3.4
+
+COPY bin/frpc /frpc
+COPY bin/frps /frps
+COPY conf/frpc_min.ini /frpc.ini
+COPY conf/frps_min.ini /frps.ini
+
+WORKDIR /
+
+EXPOSE 80 443 6000 7000 7500
+
+ENTRYPOINT ["/frps"]

Godeps/Godeps.json

@@ -1,14 +1,40 @@
 {
-	"ImportPath": "frp",
-	"GoVersion": "go1.4",
+	"ImportPath": "github.com/fatedier/frp",
+	"GoVersion": "go1.7",
+	"GodepVersion": "v75",
 	"Packages": [
 		"./..."
 	],
 	"Deps": [
 		{
 			"ImportPath": "github.com/astaxie/beego/logs",
-			"Comment": "v1.5.0-9-gfb7314f",
-			"Rev": "fb7314f8ac86b83ccd34386518d97cf2363e2ae5"
+			"Comment": "v1.7.0-7-gefbde1e",
+			"Rev": "efbde1ee77517486eac03e814e01d724ddad18e6"
+		},
+		{
+			"ImportPath": "github.com/davecgh/go-spew/spew",
+			"Comment": "v1.1.0",
+			"Rev": "346938d642f2ec3594ed81d874461961cd0faa76"
+		},
+		{
+			"ImportPath": "github.com/docopt/docopt-go",
+			"Comment": "0.6.2",
+			"Rev": "784ddc588536785e7299f7272f39101f7faccc3f"
+		},
+		{
+			"ImportPath": "github.com/pmezard/go-difflib/difflib",
+			"Comment": "v1.0.0",
+			"Rev": "792786c7400a136282c1664665ae0a8db921c6c2"
+		},
+		{
+			"ImportPath": "github.com/rakyll/statik/fs",
+			"Comment": "v0.1.0",
+			"Rev": "274df120e9065bdd08eb1120e0375e3dc1ae8465"
+		},
+		{
+			"ImportPath": "github.com/stretchr/testify/assert",
+			"Comment": "v1.1.4-25-g2402e8e",
+			"Rev": "2402e8e7a02fc811447d11f881aa9746cdc57983"
 		},
 		{
 			"ImportPath": "github.com/vaughan0/go-ini",

Godeps/_workspace/.gitignore

@@ -1,2 +0,0 @@
-/pkg
-/bin

Godeps/_workspace/src/github.com/astaxie/beego/logs/console.go

@@ -1,95 +0,0 @@
-// Copyright 2014 beego Author. All Rights Reserved.
-//
-// 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 logs
-
-import (
-	"encoding/json"
-	"log"
-	"os"
-	"runtime"
-)
-
-type Brush func(string) string
-
-func NewBrush(color string) Brush {
-	pre := "\033["
-	reset := "\033[0m"
-	return func(text string) string {
-		return pre + color + "m" + text + reset
-	}
-}
-
-var colors = []Brush{
-	NewBrush("1;37"), // Emergency	white
-	NewBrush("1;36"), // Alert			cyan
-	NewBrush("1;35"), // Critical   magenta
-	NewBrush("1;31"), // Error      red
-	NewBrush("1;33"), // Warning    yellow
-	NewBrush("1;32"), // Notice			green
-	NewBrush("1;34"), // Informational	blue
-	NewBrush("1;34"), // Debug      blue
-}
-
-// ConsoleWriter implements LoggerInterface and writes messages to terminal.
-type ConsoleWriter struct {
-	lg    *log.Logger
-	Level int `json:"level"`
-}
-
-// create ConsoleWriter returning as LoggerInterface.
-func NewConsole() LoggerInterface {
-	cw := &ConsoleWriter{
-		lg:    log.New(os.Stdout, "", log.Ldate|log.Ltime),
-		Level: LevelDebug,
-	}
-	return cw
-}
-
-// init console logger.
-// jsonconfig like '{"level":LevelTrace}'.
-func (c *ConsoleWriter) Init(jsonconfig string) error {
-	if len(jsonconfig) == 0 {
-		return nil
-	}
-	return json.Unmarshal([]byte(jsonconfig), c)
-}
-
-// write message in console.
-func (c *ConsoleWriter) WriteMsg(msg string, level int) error {
-	if level > c.Level {
-		return nil
-	}
-	if goos := runtime.GOOS; goos == "windows" {
-		c.lg.Println(msg)
-		return nil
-	}
-	c.lg.Println(colors[level](msg))
-
-	return nil
-}
-
-// implementing method. empty.
-func (c *ConsoleWriter) Destroy() {
-
-}
-
-// implementing method. empty.
-func (c *ConsoleWriter) Flush() {
-
-}
-
-func init() {
-	Register("console", NewConsole)
-}

Godeps/_workspace/src/github.com/astaxie/beego/logs/es/es.go

@@ -1,76 +0,0 @@
-package es
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-	"net"
-	"net/url"
-	"time"
-
-	"github.com/astaxie/beego/logs"
-	"github.com/belogik/goes"
-)
-
-func NewES() logs.LoggerInterface {
-	cw := &esLogger{
-		Level: logs.LevelDebug,
-	}
-	return cw
-}
-
-type esLogger struct {
-	*goes.Connection
-	DSN   string `json:"dsn"`
-	Level int    `json:"level"`
-}
-
-// {"dsn":"http://localhost:9200/","level":1}
-func (el *esLogger) Init(jsonconfig string) error {
-	err := json.Unmarshal([]byte(jsonconfig), el)
-	if err != nil {
-		return err
-	}
-	if el.DSN == "" {
-		return errors.New("empty dsn")
-	} else if u, err := url.Parse(el.DSN); err != nil {
-		return err
-	} else if u.Path == "" {
-		return errors.New("missing prefix")
-	} else if host, port, err := net.SplitHostPort(u.Host); err != nil {
-		return err
-	} else {
-		conn := goes.NewConnection(host, port)
-		el.Connection = conn
-	}
-	return nil
-}
-
-func (el *esLogger) WriteMsg(msg string, level int) error {
-	if level > el.Level {
-		return nil
-	}
-	t := time.Now()
-	vals := make(map[string]interface{})
-	vals["@timestamp"] = t.Format(time.RFC3339)
-	vals["@msg"] = msg
-	d := goes.Document{
-		Index:  fmt.Sprintf("%04d.%02d.%02d", t.Year(), t.Month(), t.Day()),
-		Type:   "logs",
-		Fields: vals,
-	}
-	_, err := el.Index(d, nil)
-	return err
-}
-
-func (el *esLogger) Destroy() {
-
-}
-
-func (el *esLogger) Flush() {
-
-}
-
-func init() {
-	logs.Register("es", NewES)
-}

Godeps/_workspace/src/github.com/astaxie/beego/logs/file.go

@@ -1,283 +0,0 @@
-// Copyright 2014 beego Author. All Rights Reserved.
-//
-// 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 logs
-
-import (
-	"bytes"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"io"
-	"log"
-	"os"
-	"path/filepath"
-	"strings"
-	"sync"
-	"time"
-)
-
-// FileLogWriter implements LoggerInterface.
-// It writes messages by lines limit, file size limit, or time frequency.
-type FileLogWriter struct {
-	*log.Logger
-	mw *MuxWriter
-	// The opened file
-	Filename string `json:"filename"`
-
-	Maxlines          int `json:"maxlines"`
-	maxlines_curlines int
-
-	// Rotate at size
-	Maxsize         int `json:"maxsize"`
-	maxsize_cursize int
-
-	// Rotate daily
-	Daily          bool  `json:"daily"`
-	Maxdays        int64 `json:"maxdays"`
-	daily_opendate int
-
-	Rotate bool `json:"rotate"`
-
-	startLock sync.Mutex // Only one log can write to the file
-
-	Level int `json:"level"`
-}
-
-// an *os.File writer with locker.
-type MuxWriter struct {
-	sync.Mutex
-	fd *os.File
-}
-
-// write to os.File.
-func (l *MuxWriter) Write(b []byte) (int, error) {
-	l.Lock()
-	defer l.Unlock()
-	return l.fd.Write(b)
-}
-
-// set os.File in writer.
-func (l *MuxWriter) SetFd(fd *os.File) {
-	if l.fd != nil {
-		l.fd.Close()
-	}
-	l.fd = fd
-}
-
-// create a FileLogWriter returning as LoggerInterface.
-func NewFileWriter() LoggerInterface {
-	w := &FileLogWriter{
-		Filename: "",
-		Maxlines: 1000000,
-		Maxsize:  1 << 28, //256 MB
-		Daily:    true,
-		Maxdays:  7,
-		Rotate:   true,
-		Level:    LevelTrace,
-	}
-	// use MuxWriter instead direct use os.File for lock write when rotate
-	w.mw = new(MuxWriter)
-	// set MuxWriter as Logger's io.Writer
-	w.Logger = log.New(w.mw, "", log.Ldate|log.Ltime)
-	return w
-}
-
-// Init file logger with json config.
-// jsonconfig like:
-//	{
-//	"filename":"logs/beego.log",
-//	"maxlines":10000,
-//	"maxsize":1<<30,
-//	"daily":true,
-//	"maxdays":15,
-//	"rotate":true
-//	}
-func (w *FileLogWriter) Init(jsonconfig string) error {
-	err := json.Unmarshal([]byte(jsonconfig), w)
-	if err != nil {
-		return err
-	}
-	if len(w.Filename) == 0 {
-		return errors.New("jsonconfig must have filename")
-	}
-	err = w.startLogger()
-	return err
-}
-
-// start file logger. create log file and set to locker-inside file writer.
-func (w *FileLogWriter) startLogger() error {
-	fd, err := w.createLogFile()
-	if err != nil {
-		return err
-	}
-	w.mw.SetFd(fd)
-	return w.initFd()
-}
-
-func (w *FileLogWriter) docheck(size int) {
-	w.startLock.Lock()
-	defer w.startLock.Unlock()
-	if w.Rotate && ((w.Maxlines > 0 && w.maxlines_curlines >= w.Maxlines) ||
-		(w.Maxsize > 0 && w.maxsize_cursize >= w.Maxsize) ||
-		(w.Daily && time.Now().Day() != w.daily_opendate)) {
-		if err := w.DoRotate(); err != nil {
-			fmt.Fprintf(os.Stderr, "FileLogWriter(%q): %s\n", w.Filename, err)
-			return
-		}
-	}
-	w.maxlines_curlines++
-	w.maxsize_cursize += size
-}
-
-// write logger message into file.
-func (w *FileLogWriter) WriteMsg(msg string, level int) error {
-	if level > w.Level {
-		return nil
-	}
-	n := 24 + len(msg) // 24 stand for the length "2013/06/23 21:00:22 [T] "
-	w.docheck(n)
-	w.Logger.Println(msg)
-	return nil
-}
-
-func (w *FileLogWriter) createLogFile() (*os.File, error) {
-	// Open the log file
-	fd, err := os.OpenFile(w.Filename, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0660)
-	return fd, err
-}
-
-func (w *FileLogWriter) initFd() error {
-	fd := w.mw.fd
-	finfo, err := fd.Stat()
-	if err != nil {
-		return fmt.Errorf("get stat err: %s\n", err)
-	}
-	w.maxsize_cursize = int(finfo.Size())
-	w.daily_opendate = time.Now().Day()
-	w.maxlines_curlines = 0
-	if finfo.Size() > 0 {
-		count, err := w.lines()
-		if err != nil {
-			return err
-		}
-		w.maxlines_curlines = count
-	}
-	return nil
-}
-
-func (w *FileLogWriter) lines() (int, error) {
-	fd, err := os.Open(w.Filename)
-	if err != nil {
-		return 0, err
-	}
-	defer fd.Close()
-
-	buf := make([]byte, 32768) // 32k
-	count := 0
-	lineSep := []byte{'\n'}
-
-	for {
-		c, err := fd.Read(buf)
-		if err != nil && err != io.EOF {
-			return count, err
-		}
-
-		count += bytes.Count(buf[:c], lineSep)
-
-		if err == io.EOF {
-			break
-		}
-	}
-
-	return count, nil
-}
-
-// DoRotate means it need to write file in new file.
-// new file name like xx.log.2013-01-01.2
-func (w *FileLogWriter) DoRotate() error {
-	_, err := os.Lstat(w.Filename)
-	if err == nil { // file exists
-		// Find the next available number
-		num := 1
-		fname := ""
-		for ; err == nil && num <= 999; num++ {
-			fname = w.Filename + fmt.Sprintf(".%s.%03d", time.Now().Format("2006-01-02"), num)
-			_, err = os.Lstat(fname)
-		}
-		// return error if the last file checked still existed
-		if err == nil {
-			return fmt.Errorf("Rotate: Cannot find free log number to rename %s\n", w.Filename)
-		}
-
-		// block Logger's io.Writer
-		w.mw.Lock()
-		defer w.mw.Unlock()
-
-		fd := w.mw.fd
-		fd.Close()
-
-		// close fd before rename
-		// Rename the file to its newfound home
-		err = os.Rename(w.Filename, fname)
-		if err != nil {
-			return fmt.Errorf("Rotate: %s\n", err)
-		}
-
-		// re-start logger
-		err = w.startLogger()
-		if err != nil {
-			return fmt.Errorf("Rotate StartLogger: %s\n", err)
-		}
-
-		go w.deleteOldLog()
-	}
-
-	return nil
-}
-
-func (w *FileLogWriter) deleteOldLog() {
-	dir := filepath.Dir(w.Filename)
-	filepath.Walk(dir, func(path string, info os.FileInfo, err error) (returnErr error) {
-		defer func() {
-			if r := recover(); r != nil {
-				returnErr = fmt.Errorf("Unable to delete old log '%s', error: %+v", path, r)
-				fmt.Println(returnErr)
-			}
-		}()
-
-		if !info.IsDir() && info.ModTime().Unix() < (time.Now().Unix()-60*60*24*w.Maxdays) {
-			if strings.HasPrefix(filepath.Base(path), filepath.Base(w.Filename)) {
-				os.Remove(path)
-			}
-		}
-		return
-	})
-}
-
-// destroy file logger, close file writer.
-func (w *FileLogWriter) Destroy() {
-	w.mw.fd.Close()
-}
-
-// flush file logger.
-// there are no buffering messages in file logger in memory.
-// flush file means sync file from disk.
-func (w *FileLogWriter) Flush() {
-	w.mw.fd.Sync()
-}
-
-func init() {
-	Register("file", NewFileWriter)
-}

Godeps/_workspace/src/github.com/astaxie/beego/logs/log.go

@@ -1,350 +0,0 @@
-// Copyright 2014 beego Author. All Rights Reserved.
-//
-// 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.
-
-// Usage:
-//
-// import "github.com/astaxie/beego/logs"
-//
-//	log := NewLogger(10000)
-//	log.SetLogger("console", "")
-//
-//	> the first params stand for how many channel
-//
-// Use it like this:
-//
-//	log.Trace("trace")
-//	log.Info("info")
-//	log.Warn("warning")
-//	log.Debug("debug")
-//	log.Critical("critical")
-//
-//  more docs http://beego.me/docs/module/logs.md
-package logs
-
-import (
-	"fmt"
-	"path"
-	"runtime"
-	"sync"
-)
-
-// RFC5424 log message levels.
-const (
-	LevelEmergency = iota
-	LevelAlert
-	LevelCritical
-	LevelError
-	LevelWarning
-	LevelNotice
-	LevelInformational
-	LevelDebug
-)
-
-// Legacy loglevel constants to ensure backwards compatibility.
-//
-// Deprecated: will be removed in 1.5.0.
-const (
-	LevelInfo  = LevelInformational
-	LevelTrace = LevelDebug
-	LevelWarn  = LevelWarning
-)
-
-type loggerType func() LoggerInterface
-
-// LoggerInterface defines the behavior of a log provider.
-type LoggerInterface interface {
-	Init(config string) error
-	WriteMsg(msg string, level int) error
-	Destroy()
-	Flush()
-}
-
-var adapters = make(map[string]loggerType)
-
-// Register makes a log provide available by the provided name.
-// If Register is called twice with the same name or if driver is nil,
-// it panics.
-func Register(name string, log loggerType) {
-	if log == nil {
-		panic("logs: Register provide is nil")
-	}
-	if _, dup := adapters[name]; dup {
-		panic("logs: Register called twice for provider " + name)
-	}
-	adapters[name] = log
-}
-
-// BeeLogger is default logger in beego application.
-// it can contain several providers and log message into all providers.
-type BeeLogger struct {
-	lock                sync.Mutex
-	level               int
-	enableFuncCallDepth bool
-	loggerFuncCallDepth int
-	asynchronous        bool
-	msg                 chan *logMsg
-	outputs             map[string]LoggerInterface
-}
-
-type logMsg struct {
-	level int
-	msg   string
-}
-
-// NewLogger returns a new BeeLogger.
-// channellen means the number of messages in chan.
-// if the buffering chan is full, logger adapters write to file or other way.
-func NewLogger(channellen int64) *BeeLogger {
-	bl := new(BeeLogger)
-	bl.level = LevelDebug
-	bl.loggerFuncCallDepth = 2
-	bl.msg = make(chan *logMsg, channellen)
-	bl.outputs = make(map[string]LoggerInterface)
-	return bl
-}
-
-func (bl *BeeLogger) Async() *BeeLogger {
-	bl.asynchronous = true
-	go bl.startLogger()
-	return bl
-}
-
-// SetLogger provides a given logger adapter into BeeLogger with config string.
-// config need to be correct JSON as string: {"interval":360}.
-func (bl *BeeLogger) SetLogger(adaptername string, config string) error {
-	bl.lock.Lock()
-	defer bl.lock.Unlock()
-	if log, ok := adapters[adaptername]; ok {
-		lg := log()
-		err := lg.Init(config)
-		bl.outputs[adaptername] = lg
-		if err != nil {
-			fmt.Println("logs.BeeLogger.SetLogger: " + err.Error())
-			return err
-		}
-	} else {
-		return fmt.Errorf("logs: unknown adaptername %q (forgotten Register?)", adaptername)
-	}
-	return nil
-}
-
-// remove a logger adapter in BeeLogger.
-func (bl *BeeLogger) DelLogger(adaptername string) error {
-	bl.lock.Lock()
-	defer bl.lock.Unlock()
-	if lg, ok := bl.outputs[adaptername]; ok {
-		lg.Destroy()
-		delete(bl.outputs, adaptername)
-		return nil
-	} else {
-		return fmt.Errorf("logs: unknown adaptername %q (forgotten Register?)", adaptername)
-	}
-}
-
-func (bl *BeeLogger) writerMsg(loglevel int, msg string) error {
-	lm := new(logMsg)
-	lm.level = loglevel
-	if bl.enableFuncCallDepth {
-		_, file, line, ok := runtime.Caller(bl.loggerFuncCallDepth)
-		if !ok {
-			file = "???"
-			line = 0
-		}
-		_, filename := path.Split(file)
-		lm.msg = fmt.Sprintf("[%s:%d] %s", filename, line, msg)
-	} else {
-		lm.msg = msg
-	}
-	if bl.asynchronous {
-		bl.msg <- lm
-	} else {
-		for name, l := range bl.outputs {
-			err := l.WriteMsg(lm.msg, lm.level)
-			if err != nil {
-				fmt.Println("unable to WriteMsg to adapter:", name, err)
-				return err
-			}
-		}
-	}
-	return nil
-}
-
-// Set log message level.
-//
-// If message level (such as LevelDebug) is higher than logger level (such as LevelWarning),
-// log providers will not even be sent the message.
-func (bl *BeeLogger) SetLevel(l int) {
-	bl.level = l
-}
-
-// set log funcCallDepth
-func (bl *BeeLogger) SetLogFuncCallDepth(d int) {
-	bl.loggerFuncCallDepth = d
-}
-
-// get log funcCallDepth for wrapper
-func (bl *BeeLogger) GetLogFuncCallDepth() int {
-	return bl.loggerFuncCallDepth
-}
-
-// enable log funcCallDepth
-func (bl *BeeLogger) EnableFuncCallDepth(b bool) {
-	bl.enableFuncCallDepth = b
-}
-
-// start logger chan reading.
-// when chan is not empty, write logs.
-func (bl *BeeLogger) startLogger() {
-	for {
-		select {
-		case bm := <-bl.msg:
-			for _, l := range bl.outputs {
-				err := l.WriteMsg(bm.msg, bm.level)
-				if err != nil {
-					fmt.Println("ERROR, unable to WriteMsg:", err)
-				}
-			}
-		}
-	}
-}
-
-// Log EMERGENCY level message.
-func (bl *BeeLogger) Emergency(format string, v ...interface{}) {
-	if LevelEmergency > bl.level {
-		return
-	}
-	msg := fmt.Sprintf("[M] "+format, v...)
-	bl.writerMsg(LevelEmergency, msg)
-}
-
-// Log ALERT level message.
-func (bl *BeeLogger) Alert(format string, v ...interface{}) {
-	if LevelAlert > bl.level {
-		return
-	}
-	msg := fmt.Sprintf("[A] "+format, v...)
-	bl.writerMsg(LevelAlert, msg)
-}
-
-// Log CRITICAL level message.
-func (bl *BeeLogger) Critical(format string, v ...interface{}) {
-	if LevelCritical > bl.level {
-		return
-	}
-	msg := fmt.Sprintf("[C] "+format, v...)
-	bl.writerMsg(LevelCritical, msg)
-}
-
-// Log ERROR level message.
-func (bl *BeeLogger) Error(format string, v ...interface{}) {
-	if LevelError > bl.level {
-		return
-	}
-	msg := fmt.Sprintf("[E] "+format, v...)
-	bl.writerMsg(LevelError, msg)
-}
-
-// Log WARNING level message.
-func (bl *BeeLogger) Warning(format string, v ...interface{}) {
-	if LevelWarning > bl.level {
-		return
-	}
-	msg := fmt.Sprintf("[W] "+format, v...)
-	bl.writerMsg(LevelWarning, msg)
-}
-
-// Log NOTICE level message.
-func (bl *BeeLogger) Notice(format string, v ...interface{}) {
-	if LevelNotice > bl.level {
-		return
-	}
-	msg := fmt.Sprintf("[N] "+format, v...)
-	bl.writerMsg(LevelNotice, msg)
-}
-
-// Log INFORMATIONAL level message.
-func (bl *BeeLogger) Informational(format string, v ...interface{}) {
-	if LevelInformational > bl.level {
-		return
-	}
-	msg := fmt.Sprintf("[I] "+format, v...)
-	bl.writerMsg(LevelInformational, msg)
-}
-
-// Log DEBUG level message.
-func (bl *BeeLogger) Debug(format string, v ...interface{}) {
-	if LevelDebug > bl.level {
-		return
-	}
-	msg := fmt.Sprintf("[D] "+format, v...)
-	bl.writerMsg(LevelDebug, msg)
-}
-
-// Log WARN level message.
-// compatibility alias for Warning()
-func (bl *BeeLogger) Warn(format string, v ...interface{}) {
-	if LevelWarning > bl.level {
-		return
-	}
-	msg := fmt.Sprintf("[W] "+format, v...)
-	bl.writerMsg(LevelWarning, msg)
-}
-
-// Log INFO level message.
-// compatibility alias for Informational()
-func (bl *BeeLogger) Info(format string, v ...interface{}) {
-	if LevelInformational > bl.level {
-		return
-	}
-	msg := fmt.Sprintf("[I] "+format, v...)
-	bl.writerMsg(LevelInformational, msg)
-}
-
-// Log TRACE level message.
-// compatibility alias for Debug()
-func (bl *BeeLogger) Trace(format string, v ...interface{}) {
-	if LevelDebug > bl.level {
-		return
-	}
-	msg := fmt.Sprintf("[D] "+format, v...)
-	bl.writerMsg(LevelDebug, msg)
-}
-
-// flush all chan data.
-func (bl *BeeLogger) Flush() {
-	for _, l := range bl.outputs {
-		l.Flush()
-	}
-}
-
-// close logger, flush all chan data and destroy all adapters in BeeLogger.
-func (bl *BeeLogger) Close() {
-	for {
-		if len(bl.msg) > 0 {
-			bm := <-bl.msg
-			for _, l := range bl.outputs {
-				err := l.WriteMsg(bm.msg, bm.level)
-				if err != nil {
-					fmt.Println("ERROR, unable to WriteMsg (while closing logger):", err)
-				}
-			}
-			continue
-		}
-		break
-	}
-	for _, l := range bl.outputs {
-		l.Flush()
-		l.Destroy()
-	}
-}

Godeps/_workspace/src/github.com/astaxie/beego/utils/captcha/LICENSE

@@ -1,19 +0,0 @@
-Copyright (c) 2011-2014 Dmitry Chestnykh <dmitry@codingrobots.com>
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.

Makefile

@@ -1,22 +1,55 @@
 export PATH := $(GOPATH)/bin:$(PATH)
-export NEW_GOPATH := $(shell pwd)
+export GO15VENDOREXPERIMENT := 1
 
-all: build
+all: fmt build
 
-build: godep fmt frps frpc
+build: frps frpc build_test
 
-godep:
-	@go get github.com/tools/godep
-	godep restore
+build_test: echo_server http_server
+
+# compile assets into binary file
+assets:
+	go get -d github.com/rakyll/statik
+	@go install github.com/rakyll/statik
+	@rm -rf ./src/assets/statik
+	go generate ./src/...
 
 fmt:
-	@GOPATH=$(NEW_GOPATH) godep go fmt ./...
+	go fmt ./src/...
+	@go fmt ./test/echo_server.go
+	@go fmt ./test/http_server.go
+	@go fmt ./test/func_test.go
 
 frps:
-	GOPATH=$(NEW_GOPATH) godep go build -o bin/frps ./src/frp/cmd/frps
+	go build -o bin/frps ./src/cmd/frps
+	@cp -rf ./src/assets/static ./bin
 
 frpc:
-	GOPATH=$(NEW_GOPATH) godep go build -o bin/frpc ./src/frp/cmd/frpc
+	go build -o bin/frpc ./src/cmd/frpc
 
-test:
-	@GOPATH=$(NEW_GOPATH) godep go test ./...
+echo_server:
+	go build -o test/bin/echo_server ./test/echo_server.go
+
+http_server:
+	go build -o test/bin/http_server ./test/http_server.go
+
+test: gotest
+
+gotest:
+	go test -v ./src/...
+
+alltest:
+	cd ./test && ./run_test.sh && cd -
+	go test -v ./src/...
+	go test -v ./test/func_test.go
+	cd ./test && ./clean_test.sh && cd -
+
+clean:
+	rm -f ./bin/frpc
+	rm -f ./bin/frps
+	rm -f ./test/bin/echo_server
+	rm -f ./test/bin/http_server
+	cd ./test && ./clean_test.sh && cd -
+
+save:
+	godep save ./src/...

Makefile.cross-compiles

@@ -0,0 +1,26 @@
+export PATH := $(GOPATH)/bin:$(PATH)
+export GO15VENDOREXPERIMENT := 1
+
+all: build
+
+build: app
+
+app:
+	env GOOS=darwin GOARCH=386 go build -o ./frpc_darwin_386 ./src/cmd/frpc
+	env GOOS=darwin GOARCH=386 go build -o ./frps_darwin_386 ./src/cmd/frps
+	env GOOS=darwin GOARCH=amd64 go build -o ./frpc_darwin_amd64 ./src/cmd/frpc
+	env GOOS=darwin GOARCH=amd64 go build -o ./frps_darwin_amd64 ./src/cmd/frps
+	env GOOS=linux GOARCH=386 go build -o ./frpc_linux_386 ./src/cmd/frpc
+	env GOOS=linux GOARCH=386 go build -o ./frps_linux_386 ./src/cmd/frps
+	env GOOS=linux GOARCH=amd64 go build -o ./frpc_linux_amd64 ./src/cmd/frpc
+	env GOOS=linux GOARCH=amd64 go build -o ./frps_linux_amd64 ./src/cmd/frps
+	env GOOS=linux GOARCH=arm go build -o ./frpc_linux_arm ./src/cmd/frpc
+	env GOOS=linux GOARCH=arm go build -o ./frps_linux_arm ./src/cmd/frps
+	env GOOS=windows GOARCH=386 go build -o ./frpc_windows_386.exe ./src/cmd/frpc
+	env GOOS=windows GOARCH=386 go build -o ./frps_windows_386.exe ./src/cmd/frps
+	env GOOS=windows GOARCH=amd64 go build -o ./frpc_windows_amd64.exe ./src/cmd/frpc
+	env GOOS=windows GOARCH=amd64 go build -o ./frps_windows_amd64.exe ./src/cmd/frps
+	env GOOS=linux GOARCH=mips64 go build -o ./frpc_linux_mips64 ./src/cmd/frpc
+	env GOOS=linux GOARCH=mips64 go build -o ./frps_linux_mips64 ./src/cmd/frps
+	env GOOS=linux GOARCH=mips64le go build -o ./frpc_linux_mips64le ./src/cmd/frpc
+	env GOOS=linux GOARCH=mips64le go build -o ./frps_linux_mips64le ./src/cmd/frps

README.md

@@ -2,4 +2,499 @@
 
 [![Build Status](https://travis-ci.org/fatedier/frp.svg)](https://travis-ci.org/fatedier/frp)
 
-A fast reverse proxy.
+[README](README.md) | [中文文档](README_zh.md)
+
+## What is frp?
+
+frp is a fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet. Now, it supports tcp, udp, http and https protocol when requests can be forwarded by domains to backward web services.
+
+## Table of Contents
+
+<!-- vim-markdown-toc GFM -->
+* [What can I do with frp?](#what-can-i-do-with-frp)
+* [Status](#status)
+* [Architecture](#architecture)
+* [Example Usage](#example-usage)
+    * [Communicate with your computer in LAN by SSH](#communicate-with-your-computer-in-lan-by-ssh)
+    * [Visit your web service in LAN by custom domains](#visit-your-web-service-in-lan-by-custom-domains)
+    * [Forward DNS query request](#forward-dns-query-request)
+* [Features](#features)
+    * [Dashboard](#dashboard)
+    * [Authentication](#authentication)
+    * [Encryption and Compression](#encryption-and-compression)
+    * [Reload configures without frps stopped](#reload-configures-without-frps-stopped)
+    * [Privilege Mode](#privilege-mode)
+        * [Port White List](#port-white-list)
+    * [Connection Pool](#connection-pool)
+    * [Rewriting the Host Header](#rewriting-the-host-header)
+    * [Password protecting your web service](#password-protecting-your-web-service)
+    * [Custom subdomain names](#custom-subdomain-names)
+    * [URL routing](#url-routing)
+    * [Connect frps by HTTP PROXY](#connect-frps-by-http-proxy)
+* [Development Plan](#development-plan)
+* [Contributing](#contributing)
+* [Donation](#donation)
+    * [AliPay](#alipay)
+    * [Paypal](#paypal)
+* [Contributors](#contributors)
+
+<!-- vim-markdown-toc -->
+
+## What can I do with frp?
+
+* Expose any http and https service behind a NAT or firewall to the internet by a server with public IP address(Name-based Virtual Host Support).
+* Expose any tcp service behind a NAT or firewall to the internet by a server with public IP address.
+* Inspect all http requests/responses that are transmitted over the tunnel(future).
+
+## Status
+
+frp is under development and you can try it with latest release version. Master branch for releasing stable version when dev branch for developing.
+
+**We may change any protocol and can't promise backward compatible. Please check the release log when upgrading.**
+
+## Architecture
+
+![architecture](/doc/pic/architecture.png)
+
+## Example Usage
+
+Firstly, download the latest programs from [Release](https://github.com/fatedier/frp/releases) page according to your os and arch.
+
+Put **frps** and **frps.ini** to your server with public IP.
+
+Put **frpc** and **frpc.ini** to your server in LAN.
+
+### Communicate with your computer in LAN by SSH
+
+1. Modify frps.ini, configure a reverse proxy named [ssh]:
+
+  ```ini
+  # frps.ini
+  [common]
+  bind_port = 7000
+
+  [ssh]
+  listen_port = 6000
+  auth_token = 123
+  ```
+
+2. Start frps:
+
+  `./frps -c ./frps.ini`
+
+3. Modify frpc.ini, set remote frps's server IP as x.x.x.x:
+
+  ```ini
+  # frpc.ini
+  [common]
+  server_addr = x.x.x.x
+  server_port = 7000
+  auth_token = 123
+
+  [ssh]
+  type = tcp
+  local_ip = 127.0.0.1
+  local_port = 22
+  ```
+
+4. Start frpc:
+
+  `./frpc -c ./frpc.ini`
+
+5. Connect to server in LAN by ssh assuming that username is test:
+
+  `ssh -oPort=6000 test@x.x.x.x`
+
+### Visit your web service in LAN by custom domains
+
+Sometimes we want to expose a local web service behind a NAT network to others for testing with your own domain name and unfortunately we can't resolve a domain name to a local ip.
+
+However, we can expose a http or https service using frp.
+
+1. Modify frps.ini, configure a http reverse proxy named [web] and set http port as 8080, custom domain as `www.yourdomain.com`:
+
+  ```ini
+  # frps.ini
+  [common]
+  bind_port = 7000
+  vhost_http_port = 8080
+
+  [web]
+  type = http
+  custom_domains = www.yourdomain.com
+  auth_token = 123
+  ```
+
+2. Start frps:
+
+  `./frps -c ./frps.ini`
+
+3. Modify frpc.ini and set remote frps server's IP as x.x.x.x. The `local_port` is the port of your web service:
+
+  ```ini
+  # frpc.ini
+  [common]
+  server_addr = x.x.x.x
+  server_port = 7000
+  auth_token = 123
+
+  [web]
+  type = http
+  local_port = 80
+  ```
+
+4. Start frpc:
+
+  `./frpc -c ./frpc.ini`
+
+5. Resolve A record of `www.yourdomain.com` to IP `x.x.x.x` or CNAME record to your origin domain.
+
+6. Now visit your local web service using url `http://www.yourdomain.com:8080`.
+
+### Forward DNS query request
+
+1. Modify frps.ini, configure a reverse proxy named [dns]:
+
+  ```ini
+  # frps.ini
+  [common]
+  bind_port = 7000
+
+  [dns]
+  type = udp
+  listen_port = 6000
+  auth_token = 123
+  ```
+
+2. Start frps:
+
+  `./frps -c ./frps.ini`
+
+3. Modify frpc.ini, set remote frps's server IP as x.x.x.x, forward dns query request to google dns server `8.8.8.8:53`:
+
+  ```ini
+  # frpc.ini
+  [common]
+  server_addr = x.x.x.x
+  server_port = 7000
+  auth_token = 123
+
+  [dns]
+  type = udp
+  local_ip = 8.8.8.8
+  local_port = 53
+  ```
+
+4. Start frpc:
+
+  `./frpc -c ./frpc.ini`
+
+5. Send dns query request by dig:
+
+  `dig @x.x.x.x -p 6000 www.goolge.com`
+
+## Features
+
+### Dashboard
+
+Check frp's status and proxies's statistics information by Dashboard.
+
+Configure a port for dashboard to enable this feature:
+
+```ini
+[common]
+dashboard_port = 7500
+# dashboard's username and password are both optional，if not set, default is admin.
+dashboard_user = admin
+dashboard_pwd = admin
+```
+
+Then visit `http://[server_addr]:7500` to see dashboard, default username and password are both `admin`.
+
+![dashboard](/doc/pic/dashboard.png)
+
+### Authentication
+
+`auth_token` in frps.ini is configured for each proxy and check for authentication when frpc login in.
+
+Client that want's to register must set a global `auth_token` equals to frps.ini.
+
+Note that time duration between frpc and frps mustn't exceed 15 minutes because timestamp is used for authentication.
+
+Howerver, this timeout duration can be modified by setting `authentication_timeout` in frps's configure file. It's defalut value is 900, means 15 minutes. If it is equals 0, then frps will not check authentication timeout.
+
+### Encryption and Compression
+
+Defalut value is false, you could decide if the proxy will use encryption or compression whether the type is:
+
+```ini
+# frpc.ini
+[ssh]
+type = tcp
+listen_port = 6000
+auth_token = 123
+use_encryption = true
+use_gzip = true
+```
+
+### Reload configures without frps stopped
+
+If you want to add a new reverse proxy and avoid restarting frps, you can use this function:
+
+1. `dashboard_port` should be set in frps.ini:
+
+  ```ini
+  # frps.ini
+  [common]
+  bind_port = 7000
+  dashboard_port = 7500
+  ```
+
+2. Start frps:
+
+  `./frps -c ./frps.ini`
+
+3. Modify frps.ini to add a new proxy [new_ssh]:
+
+  ```ini
+  # frps.ini
+  [common]
+  bind_port = 7000
+  dashboard_port = 7500
+
+  [new_ssh]
+  listen_port = 6001
+  auth_token = 123
+  ```
+
+4. Execute `reload` command:
+
+  `./frps -c ./frps.ini --reload`
+
+5. Start frpc and [new_ssh] is available now.
+
+### Privilege Mode
+
+Privilege mode is used for who don't want to do operations in frps everytime adding a new proxy.
+
+All proxies's configurations are set in frpc.ini when privilege mode is enabled.
+
+1. Enable privilege mode and set `privilege_token`.Client with the same `privilege_token` can create proxy automaticly:
+
+  ```ini
+  # frps.ini
+  [common]
+  bind_port = 7000
+  privilege_mode = true
+  privilege_token = 1234
+  ```
+
+2. Start frps:
+
+  `./frps -c ./frps.ini`
+
+3. Enable privilege mode for proxy [ssh]:
+
+  ```ini
+  # frpc.ini
+  [common]
+  server_addr = x.x.x.x
+  server_port = 7000
+  privilege_token = 1234
+
+  [ssh]
+  privilege_mode = true
+  local_port = 22
+  remote_port = 6000
+  ```
+
+4. Start frpc:
+
+  `./frpc -c ./frpc.ini`
+
+5. Connect to server in LAN by ssh assuming username is test:
+
+  `ssh -oPort=6000 test@x.x.x.x`
+
+#### Port White List
+
+`privilege_allow_ports` in frps.ini is used for preventing abuse of ports in privilege mode:
+
+```ini
+# frps.ini
+[common]
+privilege_mode = true
+privilege_token = 1234
+privilege_allow_ports = 2000-3000,3001,3003,4000-50000
+```
+
+`privilege_allow_ports` consists of a specific port or a range of ports divided by `,`.
+
+### Connection Pool
+
+By default, frps send message to frpc for create a new connection to backward service when getting an user request.If a proxy's connection pool is enabled, there will be a specified number of connections pre-established.
+
+This feature is fit for a large number of short connections.
+
+1. Configure the limit of pool count each proxy can use in frps.ini:
+
+  ```ini         
+  # frps.ini
+  [common]
+  max_pool_count = 50
+  ```
+
+2. Enable and specify the number of connection pool:
+
+  ```ini
+  # frpc.ini
+  [ssh]
+  type = tcp
+  local_port = 22
+  pool_count = 10
+  ```
+
+### Rewriting the Host Header
+
+When forwarding to a local port, frp does not modify the tunneled HTTP requests at all, they are copied to your server byte-for-byte as they are received. Some application servers use the Host header for determining which development site to display. For this reason, frp can rewrite your requests with a modified Host header. Use the `host_header_rewrite` switch to rewrite incoming HTTP requests.
+
+```ini                                                             
+# frpc.ini                                                         
+[web]
+privilege_mode = true
+type = http
+local_port = 80
+custom_domains = test.yourdomain.com
+host_header_rewrite = dev.yourdomain.com
+```
+
+If `host_header_rewrite` is specified, the Host header will be rewritten to match the hostname portion of the forwarding address.
+
+### Password protecting your web service
+
+Anyone who can guess your tunnel URL can access your local web server unless you protect it with a password.
+
+This enforces HTTP Basic Auth on all requests with the username and password you specify in frpc's configure file.
+
+It can be only enabled when proxy type is http.
+
+```ini
+# frpc.ini
+[web]
+privilege_mode = true
+type = http
+local_port = 80
+custom_domains = test.yourdomain.com
+http_user = abc
+http_pwd = abc
+```
+
+Visit `test.yourdomain.com` and now you need to input username and password.
+
+### Custom subdomain names
+
+It is convenient to use `subdomain` configure for http、https type when many people use one frps server together.
+
+```ini
+# frps.ini
+subdomain_host = frps.com
+```
+
+Resolve `*.frps.com` to the frps server's IP.
+
+```ini
+# frpc.ini
+[web]
+privilege_mode = true
+type = http
+local_port = 80
+subdomain = test
+```
+
+Now you can visit your web service by host `test.frps.com`.
+
+Note that if `subdomain_host` is not empty, `custom_domains` should not be the subdomain of `subdomain_host`.
+
+### URL routing
+
+frp support forward http requests to different backward web services by url routing.
+
+`locations` specify the prefix of URL used for routing. frps first searches for the most specific prefix location given by literal strings regardless of the listed order.
+
+```ini
+# frpc.ini
+[web01]
+privilege_mode = true
+type = http
+local_port = 80
+custom_domains = web.yourdomain.com
+locations = /
+
+[web02]
+privilege_mode = true
+type = http
+local_port = 81
+custom_domains = web.yourdomain.com
+locations = /news,/about
+```
+Http requests with url prefix `/news` and `/about` will be forwarded to **web02** and others to **web01**.
+
+### Connect frps by HTTP PROXY
+
+frpc can connect frps using HTTP PROXY if you set os environment `HTTP_PROXY` or configure `http_proxy` param in frpc.ini file.
+
+```ini
+# frpc.ini
+server_addr = x.x.x.x
+server_port = 7000
+http_proxy = http://user:pwd@192.168.1.128:8080
+```
+
+## Development Plan
+
+* Log http request information in frps.
+* Direct reverse proxy, like haproxy.
+* Load balance to different service in frpc.
+* Debug mode for frpc, prestent proxy status in terminal.
+* Inspect all http requests/responses that are transmitted over the tunnel.
+* Frpc can directly be a webserver for static files.
+* Full control mode, dynamically modify frpc's configure with dashboard in frps.
+* P2p communicate by make udp hole to penetrate NAT.
+
+## Contributing
+
+Interested in getting involved? We would like to help you!
+
+* Take a look at our [issues list](https://github.com/fatedier/frp/issues) and consider sending a Pull Request to **dev branch**.
+* If you want to add a new feature, please create an issue first to describe the new feature, as well as the implementation approach. Once a proposal is accepted, create an implementation of the new features and submit it as a pull request.
+* Sorry for my poor english and improvement for this document is welcome even some typo fix.
+* If you have some wanderful ideas, send email to fatedier@gmail.com.
+
+**Note: We prefer you to give your advise in [issues](https://github.com/fatedier/frp/issues), so others with a same question can search it quickly and we don't need to answer them repeatly.**
+
+## Donation
+
+If frp help you a lot, you can support us by:
+
+frp QQ group: 606194980
+
+### AliPay
+
+![donation-alipay](/doc/pic/donate-alipay.png)
+
+### Paypal
+
+Donate money by [paypal](https://www.paypal.me/fatedier) to my account **fatedier@gmail.com**.
+
+## Contributors
+
+* [fatedier](https://github.com/fatedier)
+* [Hurricanezwf](https://github.com/Hurricanezwf)
+* [Pan Hao](https://github.com/vashstorm)
+* [Danping Mao](https://github.com/maodanp)
+* [Eric Larssen](https://github.com/ericlarssen)
+* [Damon Zhao](https://github.com/se77en)
+* [Manfred Touron](https://github.com/moul)
+* [xuebing1110](https://github.com/xuebing1110)
+* [Anbitioner](https://github.com/bingtianbaihua)
+* [LitleCarl](https://github.com/LitleCarl)

README_zh.md

@@ -0,0 +1,519 @@
+# frp
+
+[![Build Status](https://travis-ci.org/fatedier/frp.svg)](https://travis-ci.org/fatedier/frp)
+
+[README](README.md) | [中文文档](README_zh.md)
+
+frp 是一个高性能的反向代理应用，可以帮助您轻松地进行内网穿透，对外网提供服务，支持 tcp, udp, http, https 等协议类型，并且 web 服务支持根据域名进行路由转发。
+
+## 目录
+
+<!-- vim-markdown-toc GFM -->
+* [frp 的作用](#frp-的作用)
+* [开发状态](#开发状态)
+* [架构](#架构)
+* [使用示例](#使用示例)
+    * [通过 ssh 访问公司内网机器](#通过-ssh-访问公司内网机器)
+    * [通过自定义域名访问部署于内网的 web 服务](#通过自定义域名访问部署于内网的-web-服务)
+    * [转发 DNS 查询请求](#转发-dns-查询请求)
+* [功能说明](#功能说明)
+    * [Dashboard](#dashboard)
+    * [身份验证](#身份验证)
+    * [加密与压缩](#加密与压缩)
+    * [服务器端热加载配置文件](#服务器端热加载配置文件)
+    * [特权模式](#特权模式)
+        * [端口白名单](#端口白名单)
+    * [连接池](#连接池)
+    * [修改 Host Header](#修改-host-header)
+    * [通过密码保护你的 web 服务](#通过密码保护你的-web-服务)
+    * [自定义二级域名](#自定义二级域名)
+    * [URL 路由](#url-路由)
+    * [通过 HTTP PROXY 连接 frps](#通过-http-proxy-连接-frps)
+* [开发计划](#开发计划)
+* [为 frp 做贡献](#为-frp-做贡献)
+* [捐助](#捐助)
+    * [支付宝扫码捐赠](#支付宝扫码捐赠)
+    * [Paypal 捐赠](#paypal-捐赠)
+* [贡献者](#贡献者)
+
+<!-- vim-markdown-toc -->
+
+## frp 的作用
+
+* 利用处于内网或防火墙后的机器，对外网环境提供 http 或 https 服务。
+* 对于 http 服务支持基于域名的虚拟主机，支持自定义域名绑定，使多个域名可以共用一个80端口。
+* 利用处于内网或防火墙后的机器，对外网环境提供 tcp 服务，例如在家里通过 ssh 访问处于公司内网环境内的主机。
+* 可查看通过代理的所有 http 请求和响应的详细信息。（待开发）
+
+## 开发状态
+
+frp 目前正在前期开发阶段，master 分支用于发布稳定版本，dev 分支用于开发，您可以尝试下载最新的 release 版本进行测试。
+
+**目前的交互协议可能随时改变，不能保证向后兼容，升级新版本时需要注意公告说明。**
+
+## 架构
+
+![architecture](/doc/pic/architecture.png)
+
+## 使用示例
+
+根据对应的操作系统及架构，从 [Release](https://github.com/fatedier/frp/releases) 页面下载最新版本的程序。
+
+将 **frps** 及 **frps.ini** 放到有公网 IP 的机器上。
+
+将 **frpc** 及 **frpc.ini** 放到处于内网环境的机器上。
+
+### 通过 ssh 访问公司内网机器
+
+1. 修改 frps.ini 文件，配置一个名为 ssh 的反向代理：
+
+  ```ini
+  # frps.ini
+  [common]
+  bind_port = 7000
+  
+  [ssh]
+  listen_port = 6000
+  auth_token = 123
+  ```
+
+2. 启动 frps：
+
+  `./frps -c ./frps.ini`
+
+3. 修改 frpc.ini 文件，设置 frps 所在服务器的 IP 为 x.x.x.x；
+
+  ```ini
+  # frpc.ini
+  [common]
+  server_addr = x.x.x.x
+  server_port = 7000
+  auth_token = 123
+  
+  [ssh]
+  local_ip = 127.0.0.1
+  local_port = 22
+  ```
+
+4. 启动 frpc：
+
+  `./frpc -c ./frpc.ini`
+
+5. 通过 ssh 访问内网机器，假设用户名为 test：
+
+  `ssh -oPort=6000 test@x.x.x.x`
+
+### 通过自定义域名访问部署于内网的 web 服务
+
+有时想要让其他人通过域名访问或者测试我们在本地搭建的 web 服务，但是由于本地机器没有公网 IP，无法将域名解析到本地的机器，通过 frp 就可以实现这一功能，以下示例为 http 服务，https 服务配置方法相同， vhost_http_port 替换为 vhost_https_port， type 设置为 https 即可。
+
+1. 修改 frps.ini 文件，配置一个名为 web 的 http 反向代理，设置 http 访问端口为 8080，绑定自定义域名 `www.yourdomain.com`：
+
+  ```ini
+  # frps.ini
+  [common]
+  bind_port = 7000
+  vhost_http_port = 8080
+
+  [web]
+  type = http
+  custom_domains = www.yourdomain.com
+  auth_token = 123
+  ```
+
+2. 启动 frps；
+
+  `./frps -c ./frps.ini`
+
+3. 修改 frpc.ini 文件，设置 frps 所在的服务器的 IP 为 x.x.x.x，local_port 为本地机器上 web 服务对应的端口：
+
+  ```ini
+  # frpc.ini
+  [common]
+  server_addr = x.x.x.x
+  server_port = 7000
+  auth_token = 123
+
+  [web]
+  type = http
+  local_port = 80
+  ```
+
+4. 启动 frpc：
+
+  `./frpc -c ./frpc.ini`
+
+5. 将 `www.yourdomain.com` 的域名 A 记录解析到 IP `x.x.x.x`，如果服务器已经有对应的域名，也可以将 CNAME 记录解析到服务器原先的域名。
+
+6. 通过浏览器访问 `http://www.yourdomain.com:8080` 即可访问到处于内网机器上的 web 服务。
+
+### 转发 DNS 查询请求
+
+DNS 查询请求通常使用 UDP 协议，frp 支持对内网 UDP 服务的穿透，配置方式和 TCP 基本一致。
+
+1. 修改 frps.ini 文件，配置一个名为 dns 的反向代理：
+
+  ```ini
+  # frps.ini
+  [common]
+  bind_port = 7000
+  
+  [dns]
+  type = udp
+  listen_port = 6000
+  auth_token = 123
+  ```
+
+2. 启动 frps：
+
+  `./frps -c ./frps.ini`
+
+3. 修改 frpc.ini 文件，设置 frps 所在服务器的 IP 为 x.x.x.x，转发到 Google 的 DNS 查询服务器 `8.8.8.8` 的 udp 53 端口：
+
+  ```ini
+  # frpc.ini
+  [common]
+  server_addr = x.x.x.x
+  server_port = 7000
+  auth_token = 123
+  
+  [dns]
+  type = udp
+  local_ip = 8.8.8.8
+  local_port = 53
+  ```
+
+4. 启动 frpc：
+
+  `./frpc -c ./frpc.ini`
+
+5. 通过 dig 测试 UDP 包转发是否成功，预期会返回 `www.google.com` 域名的解析结果：
+
+  `dig @x.x.x.x -p 6000 www.goolge.com`
+
+## 功能说明
+
+### Dashboard
+
+通过浏览器查看 frp 的状态以及代理统计信息展示。
+
+需要在 frps.ini 中指定 dashboard 服务使用的端口，即可开启此功能：
+
+```ini
+[common]
+dashboard_port = 7500
+# dashboard 用户名密码可选，默认都为 admin
+dashboard_user = admin
+dashboard_pwd = admin
+```
+
+打开浏览器通过 `http://[server_addr]:7500` 访问 dashboard 界面，用户名密码默认为 `admin`。
+
+![dashboard](/doc/pic/dashboard.png)
+
+### 身份验证
+
+出于安全性的考虑，服务器端可以在 frps.ini 中为每一个代理设置一个 auth_token 用于对客户端连接进行身份验证，例如上文中的 [ssh] 和 [web] 两个代理的 auth_token 都为 123。
+
+客户端需要在 frpc.ini 中配置自己的 auth_token，与服务器中的配置一致才能正常运行。
+
+需要注意的是 frpc 所在机器和 frps 所在机器的时间相差不能超过 15 分钟，因为时间戳会被用于加密验证中，防止报文被劫持后被其他人利用。
+
+这个超时时间可以在配置文件中通过 `authentication_timeout` 这个参数来修改，单位为秒，默认值为 900，即 15 分钟。如果修改为 0，则 frps 将不对身份验证报文的时间戳进行超时校验。
+
+### 加密与压缩
+
+这两个功能默认是不开启的，需要在 frpc.ini 中通过配置来为指定的代理启用加密与压缩的功能，无论类型是 tcp, http 还是 https：
+
+```ini
+# frpc.ini
+[ssh]
+type = tcp
+listen_port = 6000
+auth_token = 123
+use_encryption = true
+use_gzip = true
+```
+
+如果公司内网防火墙对外网访问进行了流量识别与屏蔽，例如禁止了 ssh 协议等，通过设置 `use_encryption = true`，将 frpc 与 frps 之间的通信内容加密传输，将会有效防止流量被拦截。
+
+如果传输的报文长度较长，通过设置 `use_gzip = true` 对传输内容进行压缩，可以有效减小 frpc 与 frps 之间的网络流量，加快流量转发速度，但是会额外消耗一些 cpu 资源。
+
+### 服务器端热加载配置文件
+
+当需要新增一个 frpc 客户端时，为了避免将 frps 重启，可以使用 reload 命令重新加载配置文件。
+
+reload 命令仅能用于修改代理的配置内容，[common] 内的公共配置信息无法修改。
+
+1. 首先需要在 frps.ini 中指定 dashboard_port：
+
+  ```ini
+  # frps.ini
+  [common]
+  bind_port = 7000
+  dashboard_port = 7500
+  ```
+
+2. 启动 frps：
+
+  `./frps -c ./frps.ini`
+
+3. 修改 frps.ini 增加一个新的代理 [new_ssh]:
+
+  ```ini
+  # frps.ini
+  [common]
+  bind_port = 7000
+  dashboard_port = 7500
+
+  [new_ssh]
+  listen_port = 6001
+  auth_token = 123
+  ```
+
+4. 执行 reload 命令，使 frps 重新加载配置文件，实际上是通过 7500 端口发送了一个 http 请求
+
+  `./frps -c ./frps.ini --reload`
+
+5. 之后启动 frpc，[new_ssh] 代理已经可以使用。
+
+### 特权模式
+
+如果想要避免每次增加代理都需要操作服务器端，可以启用特权模式。
+
+特权模式被启用后，代理的所有配置信息都可以在 frpc.ini 中配置，无需在服务器端做任何操作。
+
+1. 在 frps.ini 中设置启用特权模式并设置 privilege_token，客户端需要配置同样的 privilege_token 才能使用特权模式创建代理：
+
+  ```ini
+  # frps.ini
+  [common]
+  bind_port = 7000
+  privilege_mode = true
+  privilege_token = 1234
+  ```
+
+2. 启动 frps：
+
+  `./frps -c ./frps.ini`
+
+3. 在 frpc.ini 配置代理 [ssh]，使用特权模式创建，无需事先在服务器端配置：
+
+  ```ini
+  # frpc.ini
+  [common]
+  server_addr = x.x.x.x
+  server_port = 7000
+  privilege_token = 1234
+
+  [ssh]
+  privilege_mode = true
+  local_port = 22
+  remote_port = 6000
+  ```
+
+  remote_port 即为原先在 frps.ini 的代理中配置的 listen_port 参数，使用特权模式后需要在 frpc 的配置文件中指定。
+
+4. 启动 frpc：
+
+  `./frpc -c ./frpc.ini`
+
+5. 通过 ssh 访问内网机器，假设用户名为 test：
+
+  `ssh -oPort=6000 test@x.x.x.x`
+
+#### 端口白名单
+
+启用特权模式后为了防止端口被滥用，可以手动指定允许哪些端口被使用，在 frps.ini 中通过 privilege_allow_ports 来指定：
+
+```ini
+# frps.ini
+[common]
+privilege_mode = true
+privilege_token = 1234
+privilege_allow_ports = 2000-3000,3001,3003,4000-50000
+```
+
+privilege_allow_ports 可以配置允许使用的某个指定端口或者是一个范围内的所有端口，以 `,` 分隔，指定的范围以 `-` 分隔。
+
+### 连接池
+
+默认情况下，当用户请求建立连接后，frps 才会请求 frpc 主动与后端服务建立一个连接。当为指定的代理启用连接池后，frp 会预先和后端服务建立起指定数量的连接，每次接收到用户请求后，会从连接池中取出一个连接和用户连接关联起来，避免了等待与后端服务建立连接以及 frpc 和 frps 之间传递控制信息的时间。
+
+这一功能比较适合有大量短连接请求时开启。
+
+1. 首先可以在 frps.ini 中设置每个代理可以创建的连接池上限，避免大量资源占用，默认为 100，客户端设置超过此配置后会被调整到当前值：
+
+  ```ini
+  # frps.ini
+  [common]
+  max_pool_count = 50
+  ```
+
+2. 在 frpc.ini 中为指定代理启用连接池，指定预创建连接的数量：
+
+  ```ini
+  # frpc.ini
+  [ssh]
+  type = tcp
+  local_port = 22
+  pool_count = 10
+  ```
+
+### 修改 Host Header
+
+通常情况下 frp 不会修改转发的任何数据。但有一些后端服务会根据 http 请求 header 中的 host 字段来展现不同的网站，例如 nginx 的虚拟主机服务，启用 host-header 的修改功能可以动态修改 http 请求中的 host 字段。该功能仅限于 http 类型的代理。
+
+```ini
+# frpc.ini
+[web]
+privilege_mode = true
+type = http
+local_port = 80
+custom_domains = test.yourdomain.com
+host_header_rewrite = dev.yourdomain.com
+```
+
+原来 http 请求中的 host 字段 `test.yourdomain.com` 转发到后端服务时会被替换为 `dev.yourdomain.com`。
+
+### 通过密码保护你的 web 服务
+
+由于所有客户端共用一个 frps 的 http 服务端口，任何知道你的域名和 url 的人都能访问到你部署在内网的 web 服务，但是在某些场景下需要确保只有限定的用户才能访问。
+
+frp 支持通过 HTTP Basic Auth 来保护你的 web 服务，使用户需要通过用户名和密码才能访问到你的服务。
+
+该功能目前仅限于 http 类型的代理，需要在 frpc 的代理配置中添加用户名和密码的设置。
+
+```ini
+# frpc.ini
+[web]
+privilege_mode = true
+type = http
+local_port = 80
+custom_domains = test.yourdomain.com
+http_user = abc
+http_pwd = abc
+```
+
+通过浏览器访问 `test.yourdomain.com`，需要输入配置的用户名和密码才能访问。
+
+### 自定义二级域名
+
+在多人同时使用一个 frps 时，通过自定义二级域名的方式来使用会更加方便。
+
+通过在 frps 的配置文件中配置 `subdomain_host`，就可以启用该特性。之后在 frpc 的 http、https 类型的代理中可以不配置 `custom_domains`，而是配置一个 `subdomain` 参数。
+
+只需要将 `*.subdomain_host` 解析到 frps 所在服务器。之后用户可以通过 `subdomain` 自行指定自己的 web 服务所需要使用的二级域名，通过 `{subdomain}.{subdomain_host}` 来访问自己的 web 服务。
+
+```ini
+# frps.ini
+subdomain_host = frps.com
+```
+
+将泛域名 `*.frps.com` 解析到 frps 所在服务器的 IP 地址。
+
+```ini
+# frpc.ini
+[web]
+privilege_mode = true
+type = http
+local_port = 80
+subdomain = test
+```
+
+frps 和 fprc 都启动成功后，通过 `test.frps.com` 就可以访问到内网的 web 服务。
+
+需要注意的是如果 frps 配置了 `subdomain_host`，则 `custom_domains` 中不能是属于 `subdomain_host` 的子域名或者泛域名。
+
+同一个 http 或 https 类型的代理中 `custom_domains`  和 `subdomain` 可以同时配置。
+
+### URL 路由
+
+frp 支持根据请求的 URL 路径路由转发到不同的后端服务。
+
+通过配置文件中的 `locations` 字段指定一个或多个 proxy 能够匹配的 URL 前缀(目前仅支持最大前缀匹配，之后会考虑正则匹配)。例如指定 `locations = /news`，则所有 URL 以 `/news` 开头的请求都会被转发到这个服务。
+
+```ini
+# frpc.ini
+[web01]
+privilege_mode = true
+type = http
+local_port = 80
+custom_domains = web.yourdomain.com
+locations = /
+
+[web02]
+privilege_mode = true
+type = http
+local_port = 81
+custom_domains = web.yourdomain.com
+locations = /news,/about
+```
+
+按照上述的示例配置后，`web.yourdomain.com` 这个域名下所有以 `/news` 以及 `/about` 作为前缀的 URL 请求都会被转发到 web02，其余的请求会被转发到 web01。
+
+### 通过 HTTP PROXY 连接 frps
+
+在只能通过代理访问外网的环境内，frpc 支持通过 HTTP PROXY 和 frps 进行通信。
+
+可以通过设置 `HTTP_PROXY` 系统环境变量或者通过在 frpc 的配置文件中设置 `http_proxy` 参数来使用此功能。
+
+```ini
+# frpc.ini
+server_addr = x.x.x.x
+server_port = 7000
+http_proxy = http://user:pwd@192.168.1.128:8080
+```
+
+## 开发计划
+
+计划在后续版本中加入的功能与优化，排名不分先后，如果有其他功能建议欢迎在 [issues](https://github.com/fatedier/frp/issues) 中反馈。
+
+* frps 记录 http 请求日志。
+* frps 支持直接反向代理，类似 haproxy。
+* frpc 支持负载均衡到后端不同服务。
+* frpc debug 模式，控制台显示代理状态，类似 ngrok 启动后的界面。
+* frpc http 请求及响应信息展示。
+* frpc 支持直接作为 webserver 访问指定静态页面。
+* frpc 完全控制模式，通过 dashboard 对 frpc 进行在线操作。
+* 支持 udp 打洞的方式，提供两边内网机器直接通信，流量不经过服务器转发。
+
+## 为 frp 做贡献
+
+frp 是一个免费且开源的项目，我们欢迎任何人为其开发和进步贡献力量。
+
+* 在使用过程中出现任何问题，可以通过 [issues](https://github.com/fatedier/frp/issues) 来反馈。
+* Bug 的修复可以直接提交 Pull Request 到 dev 分支。
+* 如果是增加新的功能特性，请先创建一个 issue 并做简单描述以及大致的实现方法，提议被采纳后，就可以创建一个实现新特性的 Pull Request。
+* 欢迎对说明文档做出改善，帮助更多的人使用 frp，特别是英文文档。
+* 贡献代码请提交 PR 至 dev 分支，master 分支仅用于发布稳定可用版本。
+* 如果你有任何其他方面的问题，欢迎反馈至 fatedier@gmail.com 共同交流。
+
+**提醒：和项目相关的问题最好在 [issues](https://github.com/fatedier/frp/issues) 中反馈，这样方便其他有类似问题的人可以快速查找解决方法，并且也避免了我们重复回答一些问题。**
+
+## 捐助
+
+如果您觉得 frp 对你有帮助，欢迎给予我们一定的捐助来维持项目的长期发展。
+
+frp 交流群：606194980 (QQ 群号)
+
+### 支付宝扫码捐赠
+
+![donate-alipay](/doc/pic/donate-alipay.png)
+
+### Paypal 捐赠
+
+海外用户推荐通过 [Paypal](https://www.paypal.me/fatedier) 向我的账户 **fatedier@gmail.com** 进行捐赠。
+
+## 贡献者
+
+* [fatedier](https://github.com/fatedier)
+* [Hurricanezwf](https://github.com/Hurricanezwf)
+* [Pan Hao](https://github.com/vashstorm)
+* [Danping Mao](https://github.com/maodanp)
+* [Eric Larssen](https://github.com/ericlarssen)
+* [Damon Zhao](https://github.com/se77en)
+* [Manfred Touron](https://github.com/moul)
+* [xuebing1110](https://github.com/xuebing1110)
+* [Anbitioner](https://github.com/bingtianbaihua)
+* [LitleCarl](https://github.com/LitleCarl)

conf/frpc.ini

@@ -1,14 +1,86 @@
-# common是必须的section
+# [common] is integral section
 [common]
-server_addr = 127.0.0.1
+# A literal address or host name for IPv6 must be enclosed
+# in square brackets, as in "[::1]:80", "[ipv6-host]:http" or "[ipv6-host%zone]:80"
+server_addr = 0.0.0.0
 server_port = 7000
-log_file = ./frpc.log
-# debug, info, warn, error
-log_level = debug
-# file, console
-log_way = console
 
-# test1即为name
-[test1]
-passwd = 123
+# if you want to connect frps by http proxy, you can set http_proxy here or in global environment variables
+# http_proxy = http://user:pwd@192.168.1.128:8080
+
+# console or real logFile path like ./frpc.log
+log_file = ./frpc.log
+
+# debug, info, warn, error
+log_level = info
+
+log_max_days = 3
+
+# for authentication
+auth_token = 123
+
+# for privilege mode
+privilege_token = 12345678
+
+# heartbeat configure, it's not recommended to modify the default value
+# the default value of heartbeat_interval is 10 and heartbeat_timeout is 30
+# heartbeat_interval = 10
+# heartbeat_timeout = 30
+
+# ssh is the proxy name same as server's configuration
+[ssh]
+# tcp | http, default is tcp
+type = tcp
+local_ip = 127.0.0.1
 local_port = 22
+# true or false, if true, messages between frps and frpc will be encrypted, default is false
+use_encryption = false
+# default is false
+use_gzip = false
+
+[dns]
+type = udp
+local_ip = 114.114.114.114
+local_port = 53
+
+# Resolve your domain names to [server_addr] so you can use http://web01.yourdomain.com to browse web01 and http://web02.yourdomain.com to browse web02, the domains are set in frps.ini
+[web01]
+type = http
+local_ip = 127.0.0.1
+local_port = 80
+use_gzip = true
+# connections will be established in advance, default value is zero
+pool_count = 20
+# http username and password are safety certification for http protocol
+# if not set, you can access this custom_domains without certification
+http_user = admin
+http_pwd = admin
+# if domain for frps is frps.com, then you can access [web01] proxy by URL http://test.frps.com
+subdomain = test
+
+[web02]
+type = http
+local_ip = 127.0.0.1
+local_port = 8000
+
+[privilege_ssh]
+# if privilege_mode is enabled, this proxy will be created automatically
+privilege_mode = true
+type = tcp
+local_ip = 127.0.0.1
+local_port = 22
+use_encryption = true
+use_gzip = false
+remote_port = 6001
+
+[privilege_web]
+privilege_mode = true
+type = http
+local_ip = 127.0.0.1
+local_port = 80
+use_gzip = true
+custom_domains = web03.yourdomain.com
+# locations is only useful for http type
+locations = /,/pic
+host_header_rewrite = example.com
+subdomain = dev

conf/frpc_min.ini

@@ -0,0 +1,10 @@
+[common]
+server_addr = 0.0.0.0
+server_port = 7000
+auth_token = 123
+privilege_token = 12345678
+
+[ssh]
+type = tcp
+local_ip = 127.0.0.1
+local_port = 22

conf/frps.ini

@@ -1,15 +1,75 @@
-# common是必须的section
+# [common] is integral section
 [common]
+# A literal address or host name for IPv6 must be enclosed
+# in square brackets, as in "[::1]:80", "[ipv6-host]:http" or "[ipv6-host%zone]:80"
 bind_addr = 0.0.0.0
 bind_port = 7000
-log_file = ./frps.log
-# debug, info, warn, error
-log_level = debug
-# file, console
-log_way = console 
 
-# test1即为name
-[test1]
-passwd = 123
+# if you want to support virtual host, you must set the http port for listening (optional)
+vhost_http_port = 80
+vhost_https_port = 443
+
+# if you want to configure or reload frps by dashboard, dashboard_port must be set
+dashboard_port = 7500
+
+# dashboard user and pwd for basic auth protect, if not set, both default value is admin
+dashboard_user = admin
+dashboard_pwd = admin
+
+# dashboard assets directory(only for debug mode)
+# assets_dir = ./static
+# console or real logFile path like ./frps.log
+log_file = ./frps.log
+
+# debug, info, warn, error
+log_level = info
+
+log_max_days = 3
+
+# if you enable privilege mode, frpc can create a proxy without pre-configure in frps when privilege_token is correct
+privilege_mode = true
+privilege_token = 12345678
+
+# heartbeat configure, it's not recommended to modify the default value
+# the default value of heartbeat_timeout is 30
+# heartbeat_timeout = 30
+
+# only allow frpc to bind ports you list, if you set nothing, there won't be any limit
+privilege_allow_ports = 2000-3000,3001,3003,4000-50000
+
+# pool_count in each proxy will change to max_pool_count if they exceed the maximum value
+max_pool_count = 100
+
+# authentication_timeout means the timeout interval (seconds) when the frpc connects frps
+# if authentication_timeout is zero, the time is not verified, default is 900s
+authentication_timeout = 900
+
+# if subdomain_host is not empty, you can set subdomain when type is http or https in frpc's configure file
+# when subdomain is test, the host used by routing is test.frps.com
+subdomain_host = frps.com
+
+# ssh is the proxy name, client will use this name and auth_token to connect to server
+[ssh]
+type = tcp
+auth_token = 123
 bind_addr = 0.0.0.0
 listen_port = 6000
+
+[dns]
+type = udp
+auth_token = 123
+bind_addr = 0.0.0.0
+listen_port = 5353
+
+[web01]
+# if type equals http, vhost_http_port must be set
+type = http
+auth_token = 123
+# if proxy type equals http, custom_domains must be set separated by commas
+custom_domains = web01.yourdomain.com,web01.yourdomain2.com
+
+[web02]
+# if type equals https, vhost_https_port must be set
+type = https
+auth_token = 123
+custom_domains = web02.yourdomain.com

conf/frps_min.ini

@@ -0,0 +1,14 @@
+[common]
+bind_addr = 0.0.0.0
+bind_port = 7000
+vhost_http_port = 80
+vhost_https_port = 443
+dashboard_port = 7500
+privilege_mode = true
+privilege_token = 12345678
+
+[ssh]
+type = tcp
+auth_token = 123
+bind_addr = 0.0.0.0
+listen_port = 6000

doc/quick_start_en.md

@@ -0,0 +1,135 @@
+# Quick Start
+
+frp is easier to use compared with other similar projects.
+
+We will use two simple demo to demonstrate how to use frp.
+
+1. How to create a connection to **server A**'s **ssh port** by **server B** with **public IP address** x.x.x.x(replace to the real IP address of your server).
+2. How to visit web service in **server A**'s **8000 port** and **8001 port** by **web01.yourdomain.com** and **web02.yourdomain.com** through **server B** with public ID address.
+
+### Download SourceCode
+
+`go get github.com/fatedier/frp` is recommended, then the code will be copied to the directory `$GOPATH/src/github.com/fatedier/frp`.
+
+Or you can use `git clone https://github.com/fatedier/frp.git $GOPATH/src/github.com/fatedier/frp`.
+
+If you want to try it quickly, download the compiled program and configuration files from [https://github.com/fatedier/frp/releases](https://github.com/fatedier/frp/releases).
+
+### Compile
+
+Enter the root directory and execute `make`, then wait until finished.
+
+**bin** include all executable programs when **conf** include corresponding configuration files.
+
+### Pre-requirement
+
+* Go environment. Version of go >= 1.4.
+* Godep (if not exist, `go get` will be executed to download godep when compiling)
+
+### Deploy
+
+1. Move `./bin/frps` and `./conf/frps.ini` to any directory of **server B**.
+2. Move `./bin/frpc` and `./conf/frpc.ini` to any directory of **server A**.
+3. Modify all configuration files, details in next paragraph.
+4. Execute `nohup ./frps &` or `nohup ./frps -c ./frps.ini &` in **server B**.
+5. Execute `nohup ./frpc &` or `nohup ./frpc -c ./frpc.ini &` in **server A**.
+6. Use `ssh -oPort=6000 {user}@x.x.x.x` to test if frp is work(replace {user} to real username in **server A**), or visit custom domains by browser.
+
+## Tcp port forwarding
+
+### Configuration files
+
+#### frps.ini
+
+```ini
+[common]
+bind_addr = 0.0.0.0
+# for accept connections from frpc
+bind_port = 7000
+log_file = ./frps.log
+log_level = info
+
+# ssh is the custom name of proxy and there can be many proxies with unique name in one configure file
+[ssh]
+auth_token = 123
+bind_addr = 0.0.0.0
+# finally we connect to server A by this port
+listen_port = 6000
+```
+
+#### frpc.ini
+
+```ini
+[common]
+# server address of frps
+server_addr = x.x.x.x
+server_port = 7000
+log_file = ./frpc.log
+log_level = info
+# for authentication
+auth_token = 123
+
+# ssh is proxy name same with configure in frps.ini
+[ssh]
+# local port which need to be transferred
+local_port = 22
+# if use_encryption equals true, messages between frpc and frps will be encrypted, default is false
+use_encryption = true
+```
+
+## Http port forwarding and Custom domains binding
+
+If you only want to forward port one by one, you just need refer to [Tcp port forwarding](/doc/quick_start_en.md#Tcp-port-forwarding).If you want to visit different web pages deployed in different web servers by **server B**'s **80 port**, you should specify the type as **http**.
+
+You also need to resolve your **A record** of your custom domain to [server_addr], or resolve your **CNAME record** to [server_addr] if [server_addr] is a domain.
+
+After that, you can visit your web pages in local server by custom domains.
+
+### Configuration files
+
+#### frps.ini
+
+```ini
+[common]
+bind_addr = 0.0.0.0
+bind_port = 7000
+# if you want to support vhost, specify one port for http services
+vhost_http_port = 80
+log_file = ./frps.log
+log_level = info
+
+[web01]
+type = http
+auth_token = 123
+# # if proxy type equals http, custom_domains must be set separated by commas
+custom_domains = web01.yourdomain.com
+
+[web02]
+type = http
+auth_token = 123
+custom_domains = web02.yourdomain.com
+```
+
+#### frpc.ini
+
+```ini
+[common]
+server_addr = x.x.x.x
+server_port = 7000
+log_file = ./frpc.log
+log_level = info
+auth_token = 123 
+
+# custom domains are set in frps.ini
+[web01]
+type = http
+local_ip = 127.0.0.1
+local_port = 8000
+# encryption is optional, default is false
+use_encryption = true
+
+[web02]
+type = http
+local_ip = 127.0.0.1
+local_port = 8001
+```

doc/quick_start_zh.md

@@ -0,0 +1,137 @@
+# frp 使用文档
+
+相比于其他项目而言 frp 更易于部署和使用，这里我们用两个简单的示例来演示 frp 的使用过程。
+
+1. 如何通过一台拥有公网IP地址的**服务器B**，访问处于公司内部网络环境中的**服务器A**的**ssh**端口，**服务器B**的IP地址为 x.x.x.x（测试时替换为真实的IP地址）。
+2. 如何利用一台拥有公网IP地址的**服务器B**，使通过 **web01.yourdomain.com** 可以访问内网环境中**服务器A**上**8000端口**的web服务，**web02.yourdomain.com** 可以访问**服务器A**上**8001端口**的web服务。
+
+### 下载源码
+
+推荐直接使用 `go get github.com/fatedier/frp` 下载源代码安装，执行命令后代码将会拷贝到 `$GOPATH/src/github.com/fatedier/frp` 目录下。
+
+或者可以使用 `git clone https://github.com/fatedier/frp.git $GOPATH/src/github.com/fatedier/frp` 拷贝到相应目录下。
+
+如果您想快速进行测试，也可以根据您服务器的操作系统及架构直接下载编译好的程序及示例配置文件，[https://github.com/fatedier/frp/releases](https://github.com/fatedier/frp/releases)。
+
+### 编译
+
+进入下载后的源码根目录，执行 `make` 命令，等待编译完成。
+
+编译完成后， **bin** 目录下是编译好的可执行文件，**conf** 目录下是示例配置文件。
+
+### 依赖
+
+* go 1.4 以上版本
+* godep （如果检查不存在，编译时会通过 `go get` 命令安装）
+
+### 部署
+
+1. 将 ./bin/frps 和 ./conf/frps.ini 拷贝至**服务器B**任意目录。
+2. 将 ./bin/frpc 和 ./conf/frpc.ini 拷贝至**服务器A**任意目录。
+3. 根据要实现的功能修改两边的配置文件，详细内容见后续章节说明。
+4. 在服务器B执行 `nohup ./frps &` 或者 `nohup ./frps -c ./frps.ini &`。
+5. 在服务器A执行 `nohup ./frpc &` 或者 `nohup ./frpc -c ./frpc.ini &`。
+6. 通过 `ssh -oPort=6000 {user}@x.x.x.x` 测试是否能够成功连接**服务器A**（{user}替换为**服务器A**上存在的真实用户），或通过浏览器访问自定义域名验证 http 服务是否转发成功。
+
+## tcp 端口转发
+
+转发 tcp 端口需要按照需求修改 frps 和 frpc 的配置文件。
+
+### 配置文件
+
+#### frps.ini
+
+```ini
+[common]
+bind_addr = 0.0.0.0
+# 用于接收 frpc 连接的端口
+bind_port = 7000
+log_file = ./frps.log
+log_level = info
+
+# ssh 为代理的自定义名称，可以有多个，不能重复，和frpc中名称对应
+[ssh]
+auth_token = 123 
+bind_addr = 0.0.0.0
+# 最后将通过此端口访问后端服务
+listen_port = 6000
+```
+
+#### frpc.ini
+
+```ini
+[common]
+# frps 所在服务器绑定的IP地址
+server_addr = x.x.x.x
+server_port = 7000
+log_file = ./frpc.log
+log_level = info
+# 用于身份验证
+auth_token = 123 
+
+# ssh 需要和 frps.ini 中配置一致
+[ssh]
+# 需要转发的本地端口
+local_port = 22
+# 启用加密，frpc与frps之间通信加密，默认为 false
+use_encryption = true
+```
+
+## http 端口转发，自定义域名绑定
+
+如果只需要一对一的转发，例如**服务器B**的**80端口**转发**服务器A**的**8000端口**，则只需要配置 [tcp 端口转发](/doc/quick_start_zh.md#tcp-端口转发) 即可，如果需要使**服务器B**的**80端口**可以转发至**多个**web服务端口，则需要指定代理的类型为 http，并且在 frps 的配置文件中配置用于提供 http 转发服务的端口。
+
+按照如下的内容修改配置文件后，需要将自定义域名的 **A 记录**解析到 [server_addr]，如果 [server_addr] 是域名也可以将自定义域名的 **CNAME 记录**解析到 [server_addr]。
+
+之后就可以通过自定义域名访问到本地的多个 web 服务。
+
+### 配置文件
+
+#### frps.ini
+
+```ini
+[common]
+bind_addr = 0.0.0.0
+bind_port = 7000
+# 如果需要支持http类型的代理则需要指定一个端口
+vhost_http_port = 80
+log_file = ./frps.log
+log_level = info
+
+[web01]
+# type 默认为 tcp，这里需要特别指定为 http
+type = http
+auth_token = 123
+# 自定义域名绑定，如果需要同时绑定多个以英文逗号分隔
+custom_domains = web01.yourdomain.com
+
+[web02]
+type = http
+auth_token = 123
+custom_domains = web02.yourdomain.com
+```
+
+#### frpc.ini
+
+```ini
+[common]
+server_addr = x.x.x.x
+server_port = 7000
+log_file = ./frpc.log
+log_level = info
+auth_token = 123 
+
+
+# 自定义域名在 frps.ini 中配置，方便做统一管理
+[web01]
+type = http
+local_ip = 127.0.0.1
+local_port = 8000
+# 可选是否加密
+use_encryption = true
+
+[web02]
+type = http
+local_ip = 127.0.0.1
+local_port = 8001
+```

package.sh

@@ -0,0 +1,59 @@
+# compile for version
+make
+if [ $? -ne 0 ]; then
+    echo "make error"
+    exit 1
+fi
+
+frp_version=`./bin/frps --version`
+echo "build version: $frp_version"
+
+# cross_compiles
+make -f ./Makefile.cross-compiles
+
+rm -rf ./packages
+mkdir ./packages
+
+os_all='linux windows darwin'
+arch_all='386 amd64 arm mips64 mips64le'
+
+for os in $os_all; do
+    for arch in $arch_all; do
+        frp_dir_name="frp_${frp_version}_${os}_${arch}"
+        frp_path="./packages/frp_${frp_version}_${os}_${arch}"
+
+        if [ "x${os}" = x"windows" ]; then
+            if [ ! -f "./frpc_${os}_${arch}.exe" ]; then
+                continue
+            fi
+            if [ ! -f "./frps_${os}_${arch}.exe" ]; then
+                continue
+            fi
+            mkdir ${frp_path}
+            mv ./frpc_${os}_${arch}.exe ${frp_path}/frpc.exe
+            mv ./frps_${os}_${arch}.exe ${frp_path}/frps.exe
+        else
+            if [ ! -f "./frpc_${os}_${arch}" ]; then
+                continue
+            fi
+            if [ ! -f "./frps_${os}_${arch}" ]; then
+                continue
+            fi
+            mkdir ${frp_path}
+            mv ./frpc_${os}_${arch} ${frp_path}/frpc
+            mv ./frps_${os}_${arch} ${frp_path}/frps
+        fi  
+        cp ./LICENSE ${frp_path}
+        cp ./conf/* ${frp_path}
+
+        # packages
+        cd ./packages
+        if [ "x${os}" = x"windows" ]; then
+            zip -rq ${frp_dir_name}.zip ${frp_dir_name}
+        else
+            tar -zcf ${frp_dir_name}.tar.gz ${frp_dir_name}
+        fi  
+        cd ..
+        rm -rf ${frp_path}
+    done
+done

src/assets/assets.go

@@ -0,0 +1,75 @@
+// 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 assets
+
+//go:generate statik -src=./static
+//go:generate go fmt statik/statik.go
+
+import (
+	"io/ioutil"
+	"net/http"
+	"os"
+	"path"
+
+	"github.com/rakyll/statik/fs"
+
+	_ "github.com/fatedier/frp/src/assets/statik"
+)
+
+var (
+	// store static files in memory by statik
+	FileSystem http.FileSystem
+
+	// if prefix is not empty, we get file content from disk
+	prefixPath string
+)
+
+// if path is empty, load assets in memory
+// or set FileSystem using disk files
+func Load(path string) (err error) {
+	prefixPath = path
+	if prefixPath != "" {
+		FileSystem = http.Dir(prefixPath)
+		return nil
+	} else {
+		FileSystem, err = fs.New()
+	}
+	return err
+}
+
+func ReadFile(file string) (content string, err error) {
+	if prefixPath == "" {
+		file, err := FileSystem.Open(path.Join("/", file))
+		if err != nil {
+			return content, err
+		}
+		buf, err := ioutil.ReadAll(file)
+		if err != nil {
+			return content, err
+		}
+		content = string(buf)
+	} else {
+		file, err := os.Open(path.Join(prefixPath, file))
+		if err != nil {
+			return content, err
+		}
+		buf, err := ioutil.ReadAll(file)
+		if err != nil {
+			return content, err
+		}
+		content = string(buf)
+	}
+	return content, err
+}

src/assets/static/css/iconfont.css

@@ -0,0 +1,18 @@
+
+@font-face {font-family: "iconfont";
+  src: url('/static/font/iconfont.eot'); /* IE9*/
+  src: url('/static/font/iconfont.eot#iefix') format('embedded-opentype'), /* IE6-IE8 */
+  url('/static/font/iconfont.woff') format('woff'), /* chrome, firefox */
+  url('/static/font/iconfont.ttf') format('truetype'), /* chrome, firefox, opera, Safari, Android, iOS 4.2+*/
+  url('/static/font/iconfont.svg#iconfont') format('svg'); /* iOS 4.1- */
+}
+
+.iconfont {
+  font-family:"iconfont" !important;
+  font-size:16px;
+  font-style:normal;
+  -webkit-font-smoothing: antialiased;
+  -webkit-text-stroke-width: 0.2px;
+  -moz-osx-font-smoothing: grayscale;
+}
+.icon-sort:before { content: "\e66d"; }

src/assets/static/font/iconfont.svg

@@ -0,0 +1,39 @@
+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" >
+<svg xmlns="http://www.w3.org/2000/svg">
+<metadata>
+Created by FontForge 20120731 at Thu Aug  4 18:45:29 2016
+ By admin
+</metadata>
+<defs>
+<font id="iconfont" horiz-adv-x="374" >
+  <font-face 
+    font-family="iconfont"
+    font-weight="500"
+    font-stretch="normal"
+    units-per-em="1024"
+    panose-1="2 0 6 3 0 0 0 0 0 0"
+    ascent="896"
+    descent="-128"
+    x-height="792"
+    bbox="34 -83 956 792"
+    underline-thickness="50"
+    underline-position="-100"
+    unicode-range="U+0078-E66D"
+  />
+<missing-glyph 
+d="M34 0v682h272v-682h-272zM68 34h204v614h-204v-614z" />
+    <glyph glyph-name=".notdef" 
+d="M34 0v682h272v-682h-272zM68 34h204v614h-204v-614z" />
+    <glyph glyph-name=".null" horiz-adv-x="0" 
+ />
+    <glyph glyph-name="nonmarkingreturn" horiz-adv-x="341" 
+ />
+    <glyph glyph-name="x" unicode="x" horiz-adv-x="1001" 
+d="M281 543q-27 -1 -53 -1h-83q-18 0 -36.5 -6t-32.5 -18.5t-23 -32t-9 -45.5v-76h912v41q0 16 -0.5 30t-0.5 18q0 13 -5 29t-17 29.5t-31.5 22.5t-49.5 9h-133v-97h-438v97zM955 310v-52q0 -23 0.5 -52t0.5 -58t-10.5 -47.5t-26 -30t-33 -16t-31.5 -4.5q-14 -1 -29.5 -0.5
+t-29.5 0.5h-32l-45 128h-439l-44 -128h-29h-34q-20 0 -45 1q-25 0 -41 9.5t-25.5 23t-13.5 29.5t-4 30v167h911zM163 247q-12 0 -21 -8.5t-9 -21.5t9 -21.5t21 -8.5q13 0 22 8.5t9 21.5t-9 21.5t-22 8.5zM316 123q-8 -26 -14 -48q-5 -19 -10.5 -37t-7.5 -25t-3 -15t1 -14.5
+t9.5 -10.5t21.5 -4h37h67h81h80h64h36q23 0 34 12t2 38q-5 13 -9.5 30.5t-9.5 34.5q-5 19 -11 39h-368zM336 498v228q0 11 2.5 23t10 21.5t20.5 15.5t34 6h188q31 0 51.5 -14.5t20.5 -52.5v-227h-327z" />
+    <glyph glyph-name="uniE66D" unicode="&#xe66d;" horiz-adv-x="1024" 
+d="M922 440l-39 -39l-207 200v-684h-55v766h54zM349 -83l-247 243l39 39l207 -200v684h55v-766h-54z" />
+  </font>
+</defs></svg>

src/assets/static/index.html

@@ -0,0 +1,310 @@
+<!DOCTYPE HTML>
+<html>
+
+<head>
+  <title>frp</title>
+  <link href="static/css/bootstrap.min.css" rel="stylesheet">
+  <link href="static/css/iconfont.css" rel="stylesheet">
+  <script src="static/js/jquery.min.js"></script>
+  <script src="static/js/bootstrap.min.js"></script>
+</head>
+
+<body>
+  <div class="container" style="margin-top: 80px">
+    <div class="row">
+      <div class="col-md-7">
+        <div class="panel panel-default">
+          <div ng-app="myTable" class="panel-body">
+            <table class="table table-bordered" ng-app="myTable" ng-controller="myCtrl">
+              <thead>
+                <tr>
+                  <th class="tab_info" ng-click="col='name';desc=!desc">Server<i class="iconfont pull-right">&#xe66d;</i></th>
+                  <th class="tab_info" ng-click="col='type';desc=!desc">Type<i class="iconfont pull-right">&#xe66d;</i></th>
+                  <th class="tab_info" ng-click="col='listen_port';desc=!desc">Port<i class="iconfont pull-right">&#xe66d;</i></th>
+                  <th class="tab_info" ng-click="col='status';desc=!desc">Status<i class="iconfont pull-right">&#xe66d;</i></th>
+                  <th class="tab_info" ng-click="col='current_conns';desc=!desc">CurCon<i class="iconfont pull-right">&#xe66d;</i></th>
+                  <th class="tab_info" ng-click="col='daily[daily.length-1].flow_out';desc=!desc">FlowOut<i class="iconfont pull-right">&#xe66d;</i></th>
+                  <th class="tab_info" ng-click="col='daily[daily.length-1].flow_in';desc=!desc">FlowIn<i class="iconfont pull-right">&#xe66d;</i></th>
+                  <th class="tab_info" ng-click="col='daily[daily.length-1].total_accept_conns';desc=!desc">TotalAcceptConns<i class="iconfont pull-right">&#xe66d;</i></th>
+                </tr>
+              </thead>
+              <tbody id="tab_body">
+                <tr ng-repeat="x in proxies|orderBy:col:desc">
+                  <td>
+                    <button class="btn btn-xs btn-block btn-success center-block" onclick="changeit(this)"><span ng-bind="x.name"></span></button>
+                  </td>
+                  <td><span ng-bind="x.type"></span></td>
+                  <td><span ng-bind="x.listen_port"></span></td>
+                  <td><span ng-bind="x.status"></span></td>
+                  <td><span ng-bind="x.current_conns"></span></td>
+                  <td><span ng-bind="x.daily[x.daily.length-1].flow_out"></span></td>
+                  <td><span ng-bind="x.daily[x.daily.length-1].flow_in"></span></td>
+                  <td><span ng-bind="x.daily[x.daily.length-1].total_accept_conns"></span></td>
+                </tr>
+              </tbody>
+            </table>
+          </div>
+        </div>
+      </div>
+      <div class="col-md-5">
+        <div id="view1" style="height: 300pt"></div>
+        <div id="view2" style="height: 300pt"></div>
+      </div>
+    </div>
+  </div>
+  <script src="static/js/angular.min.js"></script>
+  <script type="text/javascript" src="static/js/echarts.min.js"></script>
+  <script>
+    var alldata = new Array();
+    var index = null; 
+    <<< range .>>>
+      alldata["<<< .Name >>>"] = {
+        name: "<<< .Name >>>",
+        type: "<<< .Type >>>",
+        bind_addr: "<<< .BindAddr >>>",
+        listen_port: "<<< .ListenPort >>>",
+        current_conns: <<< .CurrentConns >>> ,
+        domains: [ <<< range.CustomDomains >>> "<<< . >>>", <<< end >>> ],
+        locations: [ <<< range.Locations >>> "<<< . >>>", <<< end >>> ],
+        stat: "<<< .Status>>>",
+        use_encryption: "<<< .UseEncryption >>>",
+        use_gzip: "<<< .UseGzip >>>",
+        privilege_mode: "<<< .PrivilegeMode >>>",
+        times: [],
+        ins: [],
+        outs: [],
+        conns: [],
+      }; 
+    <<< end >>>
+
+    var newproxies = <<< . >>>;
+    var dom1 = document.getElementById("view1");
+    var dom2 = document.getElementById("view2");
+    var myChart1 = echarts.init(dom1);
+    var myChart2 = echarts.init(dom2);
+    var option1 = null;
+    var option2 = null;
+    var maxval = 0;
+    var dw = " B";
+    var step = 1;
+
+    function reloadview() {
+      window.maxval = 0;
+      window.dw = " B";
+      window.step = 1;
+      for (var val1 in alldata[index].ins) {
+        if (maxval < alldata[index].ins[val1]) {
+          window.maxval = alldata[index].outs[val1];
+        }
+      }
+
+      for (var val2 in alldata[index].outs) {
+        if (maxval < alldata[index].outs[val2]) {
+          window.maxval = alldata[index].outs[val2]
+        }
+      }
+
+      if (maxval > 1024 * 1024) {
+        window.dw = " MB";
+        window.step = 1024 * 1024;
+      } else if (maxval > 1024) {
+        window.dw = " KB";
+        window.step = 1024;
+      }
+
+      window.option1 = {
+        title: {
+          text: alldata[index].name
+        },
+        tooltip: {
+          trigger: 'axis'
+        },
+        legend: {
+          data: ['flow_in', 'flow_out']
+        },
+        grid: {
+          left: '3%',
+          right: '6%',
+          bottom: '3%',
+          containLabel: true
+        },
+        toolbox: {
+          feature: {
+            saveAsImage: {}
+          }
+        },
+        xAxis: {
+          type: 'category',
+          data: alldata[index].times
+        },
+        yAxis: {
+          type: 'value',
+          axisLabel: {
+            formatter: function(value) {
+              var data = (value / step).toFixed(2);
+              return data + dw;
+            }
+          }
+        },
+        series: [{
+          name: 'flow_in',
+          type: 'bar',
+          stack: '总量',
+          data: alldata[index].ins
+        }, {
+          name: 'flow_out',
+          type: 'bar',
+          stack: '总量',
+          data: alldata[index].outs
+        }]
+      };
+
+      window.option2 = {
+        title: {
+          text: ""
+        },
+        tooltip: {
+          trigger: 'axis'
+        },
+        legend: {
+          data: ['total_accept_conns']
+        },
+        grid: {
+          left: '3%',
+          right: '6%',
+          bottom: '3%',
+          containLabel: true
+        },
+        toolbox: {
+          feature: {
+            saveAsImage: {}
+          }
+        },
+        xAxis: {
+          type: 'category',
+          data: alldata[index].times
+        },
+        yAxis: {
+          type: 'value'
+        },
+        series: [{
+          name: 'total_accept_conns',
+          type: 'bar',
+          stack: '总量',
+          data: alldata[index].conns
+        }]
+      };
+
+      myChart1.setOption(option1, true);
+      myChart2.setOption(option2, true);
+    };;
+
+    var showdetail = false;
+    var newindex = 0;
+
+    function cleandetail() {
+      $(".info_detail").remove();
+      showdetail = false;
+    };
+
+    function changeit(id) {
+      newindex = id.firstElementChild.innerHTML;
+      if (index == newindex) {
+        if (showdetail) {
+          cleandetail();
+          return;
+        }
+      }
+
+      index = newindex;
+      cleandetail();
+      window.showdetail = true;
+
+      var newrow = "<tr class='info_detail'><th colspan='4'>Key</th><th colspan='4'>Val</th><tr>";
+      for (var domainindex in alldata[index].domains) {
+        newrow += "<tr class='info_detail'><td colspan='4'>Domains</td><td colspan='4'>" +
+          alldata[index].domains[domainindex] + "</td><tr>";
+      }
+      for (var locindex in alldata[index].locations) {
+        newrow += "<tr class='info_detail'><td colspan='4'>Locations</td><td colspan='4'>" +
+          alldata[index].locations[locindex] + "</td><tr>";
+      }
+      newrow += "<tr class='info_detail'><td colspan='4'>Ip</td><td colspan='4'>" + alldata[index].bind_addr + "</td><tr>";
+      newrow += "<tr class='info_detail'><td colspan='4'>Status</td><td colspan='4'>" + alldata[index].stat + "</td><tr>";
+      newrow += "<tr class='info_detail'><td colspan='4'>Encryption</td><td colspan='4'>" + alldata[index].use_encryption + "</td><tr>";
+      newrow += "<tr class='info_detail'><td colspan='4'>Gzip</td><td colspan='4'>" + alldata[index].use_gzip + "</td><tr>";
+      newrow += "<tr class='info_detail'><td colspan='4'>Privilege</td><td colspan='4'>" + alldata[index].privilege_mode + "</td><tr>";
+
+      var hehe = $(id.parentNode.parentNode);
+
+      $(hehe).after(newrow);
+      reloadview();
+    };
+
+    // add somedata
+    {
+      var ttdy = new Date();
+      var today = ttdy.getFullYear() * 10000 + (1 + ttdy.getMonth()) * 100 + ttdy.getDate();
+			for (var inx in newproxies) {
+        if (newproxies[inx].current_conns == undefined) {
+          newproxies[inx].current_conns = 0;
+          alldata[newproxies[inx].name].current_conns = 0;
+        }
+
+        if (newproxies[inx].daily == undefined ) {
+          newproxies[inx].daily = [];
+        } 
+
+        newproxies[inx].daily.sort(function (a, b) {
+            return a.time > b.time;
+        });
+
+        for (var iinnx in newproxies[inx].daily) {
+          alldata[newproxies[inx].name].times.push(newproxies[inx].daily[iinnx].time);
+          alldata[newproxies[inx].name].ins.push(newproxies[inx].daily[iinnx].flow_in);
+          alldata[newproxies[inx].name].outs.push(newproxies[inx].daily[iinnx].flow_out);
+          alldata[newproxies[inx].name].conns.push(newproxies[inx].daily[iinnx].total_accept_conns);
+        }
+        
+        if (newproxies[inx].daily.length == 0 || newproxies[inx].daily[newproxies[inx].daily.length-1].time != today) {
+          alldata[newproxies[inx].name].times.push(today);
+          alldata[newproxies[inx].name].ins.push(0);
+          alldata[newproxies[inx].name].outs.push(0);
+          alldata[newproxies[inx].name].conns.push(0);
+          newproxies[inx].daily.push({
+            time: today,
+            flow_in: 0,
+            flow_out: 0,
+            total_accept_conns: 0
+          });
+        }
+      }
+    }
+
+    var app = angular.module('myTable', []);
+
+    app.controller('myCtrl', function($scope) {
+      $scope.col = 'name';
+      $scope.desc = 0;
+      $scope.proxies = newproxies;
+    });
+
+    $(".tab_info").hover(
+        function() {
+          $(this).css("color", "orange");
+        },
+        function() {
+          $(this).css("color", "black");
+        });
+    // set default index
+    for (var inx in alldata) {
+      if (window.index == null || window.index > inx) {
+        window.index = inx;
+      }
+    }
+
+    reloadview();
+  </script>
+</body>
+
+</html>

src/assets/static/js/angular.min.js

@@ -0,0 +1,317 @@
+/*
+ AngularJS v1.5.8
+ (c) 2010-2016 Google, Inc. http://angularjs.org
+ License: MIT
+*/
+(function(C){'use strict';function N(a){return function(){var b=arguments[0],d;d="["+(a?a+":":"")+b+"] http://errors.angularjs.org/1.5.8/"+(a?a+"/":"")+b;for(b=1;b<arguments.length;b++){d=d+(1==b?"?":"&")+"p"+(b-1)+"=";var c=encodeURIComponent,e;e=arguments[b];e="function"==typeof e?e.toString().replace(/ \{[\s\S]*$/,""):"undefined"==typeof e?"undefined":"string"!=typeof e?JSON.stringify(e):e;d+=c(e)}return Error(d)}}function ta(a){if(null==a||Va(a))return!1;if(L(a)||G(a)||F&&a instanceof F)return!0;
+var b="length"in Object(a)&&a.length;return T(b)&&(0<=b&&(b-1 in a||a instanceof Array)||"function"==typeof a.item)}function q(a,b,d){var c,e;if(a)if(z(a))for(c in a)"prototype"==c||"length"==c||"name"==c||a.hasOwnProperty&&!a.hasOwnProperty(c)||b.call(d,a[c],c,a);else if(L(a)||ta(a)){var f="object"!==typeof a;c=0;for(e=a.length;c<e;c++)(f||c in a)&&b.call(d,a[c],c,a)}else if(a.forEach&&a.forEach!==q)a.forEach(b,d,a);else if(sc(a))for(c in a)b.call(d,a[c],c,a);else if("function"===typeof a.hasOwnProperty)for(c in a)a.hasOwnProperty(c)&&
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+return a.val()};d.writeValue=function(b){d.hasOption(b)?(d.removeUnknownOption(),a.val(b),""===b&&d.emptyOption.prop("selected",!0)):null==b&&d.emptyOption?(d.removeUnknownOption(),a.val("")):d.renderUnknownOption(b)};d.addOption=function(a,b){if(8!==b[0].nodeType){Qa(a,'"option value"');""===a&&(d.emptyOption=b);var g=c.get(a)||0;c.put(a,g+1);d.ngModelCtrl.$render();b[0].hasAttribute("selected")&&(b[0].selected=!0)}};d.removeOption=function(a){var b=c.get(a);b&&(1===b?(c.remove(a),""===a&&(d.emptyOption=
+void 0)):c.put(a,b-1))};d.hasOption=function(a){return!!c.get(a)};d.registerOption=function(a,b,c,h,k){if(h){var l;c.$observe("value",function(a){w(l)&&d.removeOption(l);l=a;d.addOption(a,b)})}else k?a.$watch(k,function(a,e){c.$set("value",a);e!==a&&d.removeOption(e);d.addOption(a,b)}):d.addOption(c.value,b);b.on("$destroy",function(){d.removeOption(c.value);d.ngModelCtrl.$render()})}}],re=function(){return{restrict:"E",require:["select","?ngModel"],controller:Vg,priority:1,link:{pre:function(a,b,
+d,c){var e=c[1];if(e){var f=c[0];f.ngModelCtrl=e;b.on("change",function(){a.$apply(function(){e.$setViewValue(f.readValue())})});if(d.multiple){f.readValue=function(){var a=[];q(b.find("option"),function(b){b.selected&&a.push(b.value)});return a};f.writeValue=function(a){var c=new Ra(a);q(b.find("option"),function(a){a.selected=w(c.get(a.value))})};var g,h=NaN;a.$watch(function(){h!==e.$viewValue||na(g,e.$viewValue)||(g=ia(e.$viewValue),e.$render());h=e.$viewValue});e.$isEmpty=function(a){return!a||
+0===a.length}}}},post:function(a,b,d,c){var e=c[1];if(e){var f=c[0];e.$render=function(){f.writeValue(e.$viewValue)}}}}}},te=["$interpolate",function(a){return{restrict:"E",priority:100,compile:function(b,d){if(w(d.value))var c=a(d.value,!0);else{var e=a(b.text(),!0);e||d.$set("value",b.text())}return function(a,b,d){var k=b.parent();(k=k.data("$selectController")||k.parent().data("$selectController"))&&k.registerOption(a,b,d,c,e)}}}}],se=ha({restrict:"E",terminal:!1}),Ic=function(){return{restrict:"A",
+require:"?ngModel",link:function(a,b,d,c){c&&(d.required=!0,c.$validators.required=function(a,b){return!d.required||!c.$isEmpty(b)},d.$observe("required",function(){c.$validate()}))}}},Hc=function(){return{restrict:"A",require:"?ngModel",link:function(a,b,d,c){if(c){var e,f=d.ngPattern||d.pattern;d.$observe("pattern",function(a){G(a)&&0<a.length&&(a=new RegExp("^"+a+"$"));if(a&&!a.test)throw N("ngPattern")("noregexp",f,a,ya(b));e=a||void 0;c.$validate()});c.$validators.pattern=function(a,b){return c.$isEmpty(b)||
+y(e)||e.test(b)}}}}},Kc=function(){return{restrict:"A",require:"?ngModel",link:function(a,b,d,c){if(c){var e=-1;d.$observe("maxlength",function(a){a=Z(a);e=isNaN(a)?-1:a;c.$validate()});c.$validators.maxlength=function(a,b){return 0>e||c.$isEmpty(b)||b.length<=e}}}}},Jc=function(){return{restrict:"A",require:"?ngModel",link:function(a,b,d,c){if(c){var e=0;d.$observe("minlength",function(a){e=Z(a)||0;c.$validate()});c.$validators.minlength=function(a,b){return c.$isEmpty(b)||b.length>=e}}}}};C.angular.bootstrap?
+C.console&&console.log("WARNING: Tried to load angular more than once."):(je(),le(ca),ca.module("ngLocale",[],["$provide",function(a){function b(a){a+="";var b=a.indexOf(".");return-1==b?0:a.length-b-1}a.value("$locale",{DATETIME_FORMATS:{AMPMS:["AM","PM"],DAY:"Sunday Monday Tuesday Wednesday Thursday Friday Saturday".split(" "),ERANAMES:["Before Christ","Anno Domini"],ERAS:["BC","AD"],FIRSTDAYOFWEEK:6,MONTH:"January February March April May June July August September October November December".split(" "),
+SHORTDAY:"Sun Mon Tue Wed Thu Fri Sat".split(" "),SHORTMONTH:"Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec".split(" "),STANDALONEMONTH:"January February March April May June July August September October November December".split(" "),WEEKENDRANGE:[5,6],fullDate:"EEEE, MMMM d, y",longDate:"MMMM d, y",medium:"MMM d, y h:mm:ss a",mediumDate:"MMM d, y",mediumTime:"h:mm:ss a","short":"M/d/yy h:mm a",shortDate:"M/d/yy",shortTime:"h:mm a"},NUMBER_FORMATS:{CURRENCY_SYM:"$",DECIMAL_SEP:".",GROUP_SEP:",",
+PATTERNS:[{gSize:3,lgSize:3,maxFrac:3,minFrac:0,minInt:1,negPre:"-",negSuf:"",posPre:"",posSuf:""},{gSize:3,lgSize:3,maxFrac:2,minFrac:2,minInt:1,negPre:"-\u00a4",negSuf:"",posPre:"\u00a4",posSuf:""}]},id:"en-us",localeID:"en_US",pluralCat:function(a,c){var e=a|0,f=c;void 0===f&&(f=Math.min(b(a),3));Math.pow(10,f);return 1==e&&0==f?"one":"other"}})}]),F(C.document).ready(function(){fe(C.document,Bc)}))})(window);!window.angular.$$csp().noInlineStyle&&window.angular.element(document.head).prepend('<style type="text/css">@charset "UTF-8";[ng\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide:not(.ng-hide-animate){display:none !important;}ng\\:form{display:block;}.ng-animate-shim{visibility:hidden;}.ng-anchor{position:absolute;}</style>');

src/cmd/frpc/control.go

@@ -0,0 +1,231 @@
+// 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 main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"sync"
+	"time"
+
+	"github.com/fatedier/frp/src/models/client"
+	"github.com/fatedier/frp/src/models/consts"
+	"github.com/fatedier/frp/src/models/msg"
+	"github.com/fatedier/frp/src/utils/conn"
+	"github.com/fatedier/frp/src/utils/log"
+	"github.com/fatedier/frp/src/utils/pcrypto"
+)
+
+func ControlProcess(cli *client.ProxyClient, wait *sync.WaitGroup) {
+	defer wait.Done()
+
+	msgSendChan := make(chan interface{}, 1024)
+
+	c, err := loginToServer(cli)
+	if err != nil {
+		log.Error("ProxyName [%s], connect to server failed!", cli.Name)
+		return
+	}
+	defer c.Close()
+
+	go heartbeatSender(c, msgSendChan)
+
+	go msgSender(cli, c, msgSendChan)
+	msgReader(cli, c, msgSendChan)
+
+	close(msgSendChan)
+}
+
+// loop for reading messages from frpc after control connection is established
+func msgReader(cli *client.ProxyClient, c *conn.Conn, msgSendChan chan interface{}) error {
+	// for heartbeat
+	var heartbeatTimeout bool = false
+	timer := time.AfterFunc(time.Duration(client.HeartBeatTimeout)*time.Second, func() {
+		heartbeatTimeout = true
+		if c != nil {
+			c.Close()
+		}
+		if cli != nil {
+			// if it's not udp type, nothing will happen
+			cli.CloseUdpTunnel()
+			cli.SetCloseFlag(true)
+		}
+		log.Error("ProxyName [%s], heartbeatRes from frps timeout", cli.Name)
+	})
+	defer timer.Stop()
+
+	for {
+		buf, err := c.ReadLine()
+		if err == io.EOF || c.IsClosed() {
+			timer.Stop()
+			c.Close()
+			cli.SetCloseFlag(true)
+			log.Warn("ProxyName [%s], frps close this control conn!", cli.Name)
+			var delayTime time.Duration = 1
+
+			// loop until reconnect to frps
+			for {
+				log.Info("ProxyName [%s], try to reconnect to frps [%s:%d]...", cli.Name, client.ServerAddr, client.ServerPort)
+				c, err = loginToServer(cli)
+				if err == nil {
+					close(msgSendChan)
+					msgSendChan = make(chan interface{}, 1024)
+					go heartbeatSender(c, msgSendChan)
+					go msgSender(cli, c, msgSendChan)
+					cli.SetCloseFlag(false)
+					break
+				}
+
+				if delayTime < 30 {
+					delayTime = delayTime * 2
+				} else {
+					delayTime = 30
+				}
+				time.Sleep(delayTime * time.Second)
+			}
+			continue
+		} else if err != nil {
+			log.Warn("ProxyName [%s], read from frps error: %v", cli.Name, err)
+			continue
+		}
+
+		ctlRes := &msg.ControlRes{}
+		if err := json.Unmarshal([]byte(buf), &ctlRes); err != nil {
+			log.Warn("ProxyName [%s], parse msg from frps error: %v : %s", cli.Name, err, buf)
+			continue
+		}
+
+		switch ctlRes.Type {
+		case consts.HeartbeatRes:
+			log.Debug("ProxyName [%s], receive heartbeat response", cli.Name)
+			timer.Reset(time.Duration(client.HeartBeatTimeout) * time.Second)
+		case consts.NoticeUserConn:
+			log.Debug("ProxyName [%s], new user connection", cli.Name)
+			// join local and remote connections, async
+			go cli.StartTunnel(client.ServerAddr, client.ServerPort)
+		default:
+			log.Warn("ProxyName [%s}, unsupport msgType [%d]", cli.Name, ctlRes.Type)
+		}
+	}
+	return nil
+}
+
+// loop for sending messages from channel to frps
+func msgSender(cli *client.ProxyClient, c *conn.Conn, msgSendChan chan interface{}) {
+	for {
+		msg, ok := <-msgSendChan
+		if !ok {
+			break
+		}
+
+		buf, _ := json.Marshal(msg)
+		err := c.WriteString(string(buf) + "\n")
+		if err != nil {
+			log.Warn("ProxyName [%s], write to server error, proxy exit", cli.Name)
+			c.Close()
+			break
+		}
+	}
+}
+
+func loginToServer(cli *client.ProxyClient) (c *conn.Conn, err error) {
+	if client.HttpProxy == "" {
+		c, err = conn.ConnectServer(fmt.Sprintf("%s:%d", client.ServerAddr, client.ServerPort))
+	} else {
+		c, err = conn.ConnectServerByHttpProxy(client.HttpProxy, fmt.Sprintf("%s:%d", client.ServerAddr, client.ServerPort))
+	}
+	if err != nil {
+		log.Error("ProxyName [%s], connect to server [%s:%d] error, %v", cli.Name, client.ServerAddr, client.ServerPort, err)
+		return
+	}
+
+	nowTime := time.Now().Unix()
+	req := &msg.ControlReq{
+		Type:              consts.NewCtlConn,
+		ProxyName:         cli.Name,
+		UseEncryption:     cli.UseEncryption,
+		UseGzip:           cli.UseGzip,
+		PrivilegeMode:     cli.PrivilegeMode,
+		ProxyType:         cli.Type,
+		PoolCount:         cli.PoolCount,
+		HostHeaderRewrite: cli.HostHeaderRewrite,
+		HttpUserName:      cli.HttpUserName,
+		HttpPassWord:      cli.HttpPassWord,
+		SubDomain:         cli.SubDomain,
+		Timestamp:         nowTime,
+	}
+	if cli.PrivilegeMode {
+		privilegeKey := pcrypto.GetAuthKey(cli.Name + client.PrivilegeToken + fmt.Sprintf("%d", nowTime))
+		req.RemotePort = cli.RemotePort
+		req.CustomDomains = cli.CustomDomains
+		req.Locations = cli.Locations
+		req.PrivilegeKey = privilegeKey
+	} else {
+		authKey := pcrypto.GetAuthKey(cli.Name + cli.AuthToken + fmt.Sprintf("%d", nowTime))
+		req.AuthKey = authKey
+	}
+
+	buf, _ := json.Marshal(req)
+	err = c.WriteString(string(buf) + "\n")
+	if err != nil {
+		log.Error("ProxyName [%s], write to server error, %v", cli.Name, err)
+		return
+	}
+
+	res, err := c.ReadLine()
+	if err != nil {
+		log.Error("ProxyName [%s], read from server error, %v", cli.Name, err)
+		return
+	}
+	log.Debug("ProxyName [%s], read [%s]", cli.Name, res)
+
+	ctlRes := &msg.ControlRes{}
+	if err = json.Unmarshal([]byte(res), &ctlRes); err != nil {
+		log.Error("ProxyName [%s], format server response error, %v", cli.Name, err)
+		return
+	}
+
+	if ctlRes.Code != 0 {
+		log.Error("ProxyName [%s], start proxy error, %s", cli.Name, ctlRes.Msg)
+		return c, fmt.Errorf("%s", ctlRes.Msg)
+	}
+
+	log.Info("ProxyName [%s], connect to server [%s:%d] success!", cli.Name, client.ServerAddr, client.ServerPort)
+
+	if cli.Type == "udp" {
+		// we only need one udp work connection
+		// all udp messages will be forwarded throngh this connection
+		go cli.StartUdpTunnelOnce(client.ServerAddr, client.ServerPort)
+	}
+	return
+}
+
+func heartbeatSender(c *conn.Conn, msgSendChan chan interface{}) {
+	heartbeatReq := &msg.ControlReq{
+		Type: consts.HeartbeatReq,
+	}
+	log.Info("Start to send heartbeat to frps")
+	for {
+		time.Sleep(time.Duration(client.HeartBeatInterval) * time.Second)
+		if c != nil && !c.IsClosed() {
+			log.Debug("Send heartbeat to server")
+			msgSendChan <- heartbeatReq
+		} else {
+			break
+		}
+	}
+	log.Info("Heartbeat goroutine exit")
+}

src/cmd/frpc/main.go

@@ -0,0 +1,113 @@
+// 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 main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+	"sync"
+
+	docopt "github.com/docopt/docopt-go"
+
+	"github.com/fatedier/frp/src/models/client"
+	"github.com/fatedier/frp/src/utils/log"
+	"github.com/fatedier/frp/src/utils/version"
+)
+
+var (
+	configFile string = "./frpc.ini"
+)
+
+var usage string = `frpc is the client of frp
+
+Usage: 
+    frpc [-c config_file] [-L log_file] [--log-level=<log_level>] [--server-addr=<server_addr>]
+    frpc -h | --help
+    frpc -v | --version
+
+Options:
+    -c config_file              set config file
+    -L log_file                 set output log file, including console
+    --log-level=<log_level>     set log level: debug, info, warn, error
+    --server-addr=<server_addr> addr which frps is listening for, example: 0.0.0.0:7000
+    -h --help                   show this screen
+    --version                   show version
+`
+
+func main() {
+	// the configures parsed from file will be replaced by those from command line if exist
+	args, err := docopt.Parse(usage, nil, true, version.Full(), false)
+
+	if args["-c"] != nil {
+		configFile = args["-c"].(string)
+	}
+	err = client.LoadConf(configFile)
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+
+	if args["-L"] != nil {
+		if args["-L"].(string) == "console" {
+			client.LogWay = "console"
+		} else {
+			client.LogWay = "file"
+			client.LogFile = args["-L"].(string)
+		}
+	}
+
+	if args["--log-level"] != nil {
+		client.LogLevel = args["--log-level"].(string)
+	}
+
+	if args["--server-addr"] != nil {
+		addr := strings.Split(args["--server-addr"].(string), ":")
+		if len(addr) != 2 {
+			fmt.Println("--server-addr format error: example 0.0.0.0:7000")
+			os.Exit(1)
+		}
+		serverPort, err := strconv.ParseInt(addr[1], 10, 64)
+		if err != nil {
+			fmt.Println("--server-addr format error, example 0.0.0.0:7000")
+			os.Exit(1)
+		}
+		client.ServerAddr = addr[0]
+		client.ServerPort = serverPort
+	}
+
+	if args["-v"] != nil {
+		if args["-v"].(bool) {
+			fmt.Println(version.Full())
+			os.Exit(0)
+		}
+	}
+
+	log.InitLog(client.LogWay, client.LogFile, client.LogLevel, client.LogMaxDays)
+
+	// wait until all control goroutine exit
+	var wait sync.WaitGroup
+	wait.Add(len(client.ProxyClients))
+
+	for _, client := range client.ProxyClients {
+		go ControlProcess(client, &wait)
+	}
+
+	log.Info("Start frpc success")
+
+	wait.Wait()
+	log.Warn("All proxy exit!")
+}

src/cmd/frps/control.go

@@ -0,0 +1,365 @@
+// 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 main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"strings"
+	"time"
+
+	"github.com/fatedier/frp/src/models/consts"
+	"github.com/fatedier/frp/src/models/metric"
+	"github.com/fatedier/frp/src/models/msg"
+	"github.com/fatedier/frp/src/models/server"
+	"github.com/fatedier/frp/src/utils/conn"
+	"github.com/fatedier/frp/src/utils/log"
+	"github.com/fatedier/frp/src/utils/pcrypto"
+)
+
+func ProcessControlConn(l *conn.Listener) {
+	for {
+		c, err := l.Accept()
+		if err != nil {
+			return
+		}
+		log.Debug("Get new connection, %v", c.GetRemoteAddr())
+		go controlWorker(c)
+	}
+}
+
+// connection from every client and server
+func controlWorker(c *conn.Conn) {
+	// if login message type is NewWorkConn, don't close this connection
+	var closeFlag bool = true
+	var s *server.ProxyServer
+	defer func() {
+		if closeFlag {
+			c.Close()
+			if s != nil {
+				s.Close()
+			}
+		}
+	}()
+
+	// get login message
+	buf, err := c.ReadLine()
+	if err != nil {
+		log.Warn("Read error, %v", err)
+		return
+	}
+	log.Debug("Get msg from frpc: %s", buf)
+
+	cliReq := &msg.ControlReq{}
+	if err := json.Unmarshal([]byte(buf), &cliReq); err != nil {
+		log.Warn("Parse msg from frpc error: %v : %s", err, buf)
+		return
+	}
+
+	// login when type is NewCtlConn or NewWorkConn
+	ret, info, s := doLogin(cliReq, c)
+	// if login type is NewWorkConn, nothing will be send to frpc
+	if cliReq.Type == consts.NewCtlConn {
+		cliRes := &msg.ControlRes{
+			Type: consts.NewCtlConnRes,
+			Code: ret,
+			Msg:  info,
+		}
+		byteBuf, _ := json.Marshal(cliRes)
+		err = c.WriteString(string(byteBuf) + "\n")
+		if err != nil {
+			log.Warn("ProxyName [%s], write to client error, proxy exit", cliReq.ProxyName)
+			return
+		}
+	} else {
+		if ret == 0 {
+			closeFlag = false
+		}
+		return
+	}
+
+	// if login failed, just return
+	if ret > 0 {
+		return
+	}
+
+	// create a channel for sending messages
+	msgSendChan := make(chan interface{}, 1024)
+	go msgSender(s, c, msgSendChan)
+	go noticeUserConn(s, msgSendChan)
+
+	// loop for reading control messages from frpc and deal with different types
+	msgReader(s, c, msgSendChan)
+
+	close(msgSendChan)
+	log.Info("ProxyName [%s], I'm dead!", s.Name)
+	return
+}
+
+// when frps get one new user connection, send NoticeUserConn message to frpc and accept one new WorkConn later
+func noticeUserConn(s *server.ProxyServer, msgSendChan chan interface{}) {
+	for {
+		closeFlag := s.WaitUserConn()
+		if closeFlag {
+			log.Debug("ProxyName [%s], goroutine for noticing user conn is closed", s.Name)
+			break
+		}
+		notice := &msg.ControlRes{
+			Type: consts.NoticeUserConn,
+		}
+		msgSendChan <- notice
+		log.Debug("ProxyName [%s], notice client to add work conn", s.Name)
+	}
+}
+
+// loop for reading messages from frpc after control connection is established
+func msgReader(s *server.ProxyServer, c *conn.Conn, msgSendChan chan interface{}) error {
+	// for heartbeat
+	var heartbeatTimeout bool = false
+	timer := time.AfterFunc(time.Duration(server.HeartBeatTimeout)*time.Second, func() {
+		heartbeatTimeout = true
+		s.Close()
+		log.Error("ProxyName [%s], client heartbeat timeout", s.Name)
+	})
+	defer timer.Stop()
+
+	for {
+		buf, err := c.ReadLine()
+		if err != nil {
+			if err == io.EOF {
+				log.Warn("ProxyName [%s], client is dead!", s.Name)
+				s.Close()
+				return err
+			} else if c == nil || c.IsClosed() {
+				log.Warn("ProxyName [%s], client connection is closed", s.Name)
+				s.Close()
+				return err
+			}
+			log.Warn("ProxyName [%s], read error: %v", s.Name, err)
+			continue
+		}
+
+		cliReq := &msg.ControlReq{}
+		if err := json.Unmarshal([]byte(buf), &cliReq); err != nil {
+			log.Warn("ProxyName [%s], parse msg from frpc error: %v : %s", s.Name, err, buf)
+			continue
+		}
+
+		switch cliReq.Type {
+		case consts.HeartbeatReq:
+			log.Debug("ProxyName [%s], get heartbeat", s.Name)
+			timer.Reset(time.Duration(server.HeartBeatTimeout) * time.Second)
+			heartbeatRes := &msg.ControlRes{
+				Type: consts.HeartbeatRes,
+			}
+			msgSendChan <- heartbeatRes
+		default:
+			log.Warn("ProxyName [%s}, unsupport msgType [%d]", s.Name, cliReq.Type)
+		}
+	}
+	return nil
+}
+
+// loop for sending messages from channel to frpc
+func msgSender(s *server.ProxyServer, c *conn.Conn, msgSendChan chan interface{}) {
+	for {
+		msg, ok := <-msgSendChan
+		if !ok {
+			break
+		}
+
+		buf, _ := json.Marshal(msg)
+		err := c.WriteString(string(buf) + "\n")
+		if err != nil {
+			log.Warn("ProxyName [%s], write to client error, proxy exit", s.Name)
+			s.Close()
+			break
+		}
+	}
+}
+
+// if success, ret equals 0, otherwise greater than 0
+// NewCtlConn
+// NewWorkConn
+// NewWorkConnUdp
+func doLogin(req *msg.ControlReq, c *conn.Conn) (ret int64, info string, s *server.ProxyServer) {
+	ret = 1
+	// check if PrivilegeMode is enabled
+	if req.PrivilegeMode && !server.PrivilegeMode {
+		info = fmt.Sprintf("ProxyName [%s], PrivilegeMode is disabled in frps", req.ProxyName)
+		log.Warn("info")
+		return
+	}
+
+	var ok bool
+	s, ok = server.GetProxyServer(req.ProxyName)
+	if req.PrivilegeMode && req.Type == consts.NewCtlConn {
+		log.Debug("ProxyName [%s], doLogin and privilege mode is enabled", req.ProxyName)
+	} else {
+		if !ok {
+			info = fmt.Sprintf("ProxyName [%s] is not exist", req.ProxyName)
+			log.Warn(info)
+			return
+		}
+	}
+
+	// check authKey or privilegeKey
+	nowTime := time.Now().Unix()
+	if req.PrivilegeMode {
+		privilegeKey := pcrypto.GetAuthKey(req.ProxyName + server.PrivilegeToken + fmt.Sprintf("%d", req.Timestamp))
+		// privilegeKey unavaiable after server.AuthTimeout minutes
+		if server.AuthTimeout != 0 && nowTime-req.Timestamp > server.AuthTimeout {
+			info = fmt.Sprintf("ProxyName [%s], privilege mode authorization timeout", req.ProxyName)
+			log.Warn(info)
+			return
+		} else if req.PrivilegeKey != privilegeKey {
+			info = fmt.Sprintf("ProxyName [%s], privilege mode authorization failed", req.ProxyName)
+			log.Warn(info)
+			log.Debug("PrivilegeKey [%s] and get [%s]", privilegeKey, req.PrivilegeKey)
+			return
+		}
+	} else {
+		authKey := pcrypto.GetAuthKey(req.ProxyName + s.AuthToken + fmt.Sprintf("%d", req.Timestamp))
+		if server.AuthTimeout != 0 && nowTime-req.Timestamp > server.AuthTimeout {
+			info = fmt.Sprintf("ProxyName [%s], authorization timeout", req.ProxyName)
+			log.Warn(info)
+			return
+		} else if req.AuthKey != authKey {
+			info = fmt.Sprintf("ProxyName [%s], authorization failed", req.ProxyName)
+			log.Warn(info)
+			log.Debug("AuthKey [%s] and get [%s]", authKey, req.AuthKey)
+			return
+		}
+	}
+
+	// control conn
+	if req.Type == consts.NewCtlConn {
+		if req.PrivilegeMode {
+			s = server.NewProxyServerFromCtlMsg(req)
+			// we check listen_port if privilege_allow_ports are set
+			// and PrivilegeMode is enabled
+			if s.Type == "tcp" {
+				if len(server.PrivilegeAllowPorts) != 0 {
+					_, ok := server.PrivilegeAllowPorts[s.ListenPort]
+					if !ok {
+						info = fmt.Sprintf("ProxyName [%s], remote_port [%d] isn't allowed", req.ProxyName, s.ListenPort)
+						log.Warn(info)
+						return
+					}
+				}
+			} else if s.Type == "http" || s.Type == "https" {
+				for _, domain := range s.CustomDomains {
+					if server.SubDomainHost != "" && strings.Contains(domain, server.SubDomainHost) {
+						info = fmt.Sprintf("ProxyName [%s], custom domain [%s] should not belong to subdomain_host [%s]", req.ProxyName, domain, server.SubDomainHost)
+						log.Warn(info)
+						return
+					}
+				}
+
+				if s.SubDomain != "" {
+					if strings.Contains(s.SubDomain, ".") || strings.Contains(s.SubDomain, "*") {
+						info = fmt.Sprintf("ProxyName [%s], '.' and '*' is not supported in subdomain", req.ProxyName)
+						log.Warn(info)
+						return
+					}
+					if server.SubDomainHost == "" {
+						info = fmt.Sprintf("ProxyName [%s], subdomain is not supported because this feature is not enabled by remote server", req.ProxyName)
+						log.Warn(info)
+						return
+					}
+					s.SubDomain = s.SubDomain + "." + server.SubDomainHost
+				}
+			}
+			err := server.CreateProxy(s)
+			if err != nil {
+				info = fmt.Sprintf("ProxyName [%s], %v", req.ProxyName, err)
+				log.Warn(info)
+				return
+			}
+		}
+
+		// check if vhost_port is set
+		if s.Type == "http" && server.VhostHttpMuxer == nil {
+			info = fmt.Sprintf("ProxyName [%s], type [http] not support when vhost_http_port is not set", req.ProxyName)
+			log.Warn(info)
+			return
+		}
+		if s.Type == "https" && server.VhostHttpsMuxer == nil {
+			info = fmt.Sprintf("ProxyName [%s], type [https] not support when vhost_https_port is not set", req.ProxyName)
+			log.Warn(info)
+			return
+		}
+
+		// set infomations from frpc
+		s.BindAddr = server.BindAddr
+		s.UseEncryption = req.UseEncryption
+		s.UseGzip = req.UseGzip
+		s.HostHeaderRewrite = req.HostHeaderRewrite
+		s.HttpUserName = req.HttpUserName
+		s.HttpPassWord = req.HttpPassWord
+
+		if req.PoolCount > server.MaxPoolCount {
+			s.PoolCount = server.MaxPoolCount
+		} else if req.PoolCount < 0 {
+			s.PoolCount = 0
+		} else {
+			s.PoolCount = req.PoolCount
+		}
+
+		if s.Status == consts.Working {
+			info = fmt.Sprintf("ProxyName [%s], already in use", req.ProxyName)
+			log.Warn(info)
+			return
+		}
+
+		// update metric's proxy status
+		metric.SetProxyInfo(s.Name, s.Type, s.BindAddr, s.UseEncryption, s.UseGzip, s.PrivilegeMode, s.CustomDomains, s.Locations, s.ListenPort)
+
+		// start proxy and listen for user connections, no block
+		err := s.Start(c)
+		if err != nil {
+			info = fmt.Sprintf("ProxyName [%s], start proxy error: %v", req.ProxyName, err)
+			log.Warn(info)
+			return
+		}
+		log.Info("ProxyName [%s], start proxy success", req.ProxyName)
+		if req.PrivilegeMode {
+			log.Info("ProxyName [%s], created by PrivilegeMode", req.ProxyName)
+		}
+	} else if req.Type == consts.NewWorkConn {
+		// work conn
+		if s.Status != consts.Working {
+			log.Warn("ProxyName [%s], is not working when it gets one new work connnection", req.ProxyName)
+			return
+		}
+		// the connection will close after join over
+		s.RegisterNewWorkConn(c)
+	} else if req.Type == consts.NewWorkConnUdp {
+		// work conn for udp
+		if s.Status != consts.Working {
+			log.Warn("ProxyName [%s], is not working when it gets one new work connnection for udp", req.ProxyName)
+			return
+		}
+		s.RegisterNewWorkConnUdp(c)
+	} else {
+		info = fmt.Sprintf("Unsupport login message type [%d]", req.Type)
+		log.Warn("Unsupport login message type [%d]", req.Type)
+		return
+	}
+
+	ret = 0
+	return
+}

src/cmd/frps/main.go

@@ -0,0 +1,199 @@
+// 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 main
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+
+	docopt "github.com/docopt/docopt-go"
+
+	"github.com/fatedier/frp/src/assets"
+	"github.com/fatedier/frp/src/models/server"
+	"github.com/fatedier/frp/src/utils/conn"
+	"github.com/fatedier/frp/src/utils/log"
+	"github.com/fatedier/frp/src/utils/version"
+	"github.com/fatedier/frp/src/utils/vhost"
+)
+
+var usage string = `frps is the server of frp
+
+Usage: 
+    frps [-c config_file] [-L log_file] [--log-level=<log_level>] [--addr=<bind_addr>]
+    frps [-c config_file] --reload
+    frps -h | --help
+    frps -v | --version
+
+Options:
+    -c config_file            set config file
+    -L log_file               set output log file, including console
+    --log-level=<log_level>   set log level: debug, info, warn, error
+    --addr=<bind_addr>        listen addr for client, example: 0.0.0.0:7000
+    --reload                  reload ini file and configures in common section won't be changed
+    -h --help                 show this screen
+    -v --version              show version
+`
+
+func main() {
+	// the configures parsed from file will be replaced by those from command line if exist
+	args, err := docopt.Parse(usage, nil, true, version.Full(), false)
+
+	if args["-c"] != nil {
+		server.ConfigFile = args["-c"].(string)
+	}
+	err = server.LoadConf(server.ConfigFile)
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+
+	// reload check
+	if args["--reload"] != nil {
+		if args["--reload"].(bool) {
+			req, err := http.NewRequest("GET", "http://"+server.BindAddr+":"+fmt.Sprintf("%d", server.DashboardPort)+"/api/reload", nil)
+			if err != nil {
+				fmt.Printf("frps reload error: %v\n", err)
+				os.Exit(1)
+			}
+
+			authStr := "Basic " + base64.StdEncoding.EncodeToString([]byte(server.DashboardUsername+":"+server.DashboardPassword))
+
+			req.Header.Add("Authorization", authStr)
+			defaultClient := &http.Client{}
+			resp, err := defaultClient.Do(req)
+
+			if err != nil {
+				fmt.Printf("frps reload error: %v\n", err)
+				os.Exit(1)
+			} else {
+				defer resp.Body.Close()
+				body, err := ioutil.ReadAll(resp.Body)
+				if err != nil {
+					fmt.Printf("frps reload error: %v\n", err)
+					os.Exit(1)
+				}
+				res := &server.GeneralResponse{}
+				err = json.Unmarshal(body, &res)
+				if err != nil {
+					fmt.Printf("http response error: %s\n", strings.TrimSpace(string(body)))
+					os.Exit(1)
+				} else if res.Code != 0 {
+					fmt.Printf("reload error: %s\n", res.Msg)
+					os.Exit(1)
+				}
+				fmt.Printf("reload success\n")
+				os.Exit(0)
+			}
+		}
+	}
+
+	if args["-L"] != nil {
+		if args["-L"].(string) == "console" {
+			server.LogWay = "console"
+		} else {
+			server.LogWay = "file"
+			server.LogFile = args["-L"].(string)
+		}
+	}
+
+	if args["--log-level"] != nil {
+		server.LogLevel = args["--log-level"].(string)
+	}
+
+	if args["--addr"] != nil {
+		addr := strings.Split(args["--addr"].(string), ":")
+		if len(addr) != 2 {
+			fmt.Println("--addr format error: example 0.0.0.0:7000")
+			os.Exit(1)
+		}
+		bindPort, err := strconv.ParseInt(addr[1], 10, 64)
+		if err != nil {
+			fmt.Println("--addr format error, example 0.0.0.0:7000")
+			os.Exit(1)
+		}
+		server.BindAddr = addr[0]
+		server.BindPort = bindPort
+	}
+
+	if args["-v"] != nil {
+		if args["-v"].(bool) {
+			fmt.Println(version.Full())
+			os.Exit(0)
+		}
+	}
+
+	log.InitLog(server.LogWay, server.LogFile, server.LogLevel, server.LogMaxDays)
+
+	// init assets
+	err = assets.Load(server.AssetsDir)
+	if err != nil {
+		log.Error("Load assets error: %v", err)
+		os.Exit(1)
+	}
+
+	l, err := conn.Listen(server.BindAddr, server.BindPort)
+	if err != nil {
+		log.Error("Create server listener error, %v", err)
+		os.Exit(1)
+	}
+
+	// create vhost if VhostHttpPort != 0
+	if server.VhostHttpPort != 0 {
+		vhostListener, err := conn.Listen(server.BindAddr, server.VhostHttpPort)
+		if err != nil {
+			log.Error("Create vhost http listener error, %v", err)
+			os.Exit(1)
+		}
+		server.VhostHttpMuxer, err = vhost.NewHttpMuxer(vhostListener, 30*time.Second)
+		if err != nil {
+			log.Error("Create vhost httpMuxer error, %v", err)
+		}
+	}
+
+	// create vhost if VhostHttpPort != 0
+	if server.VhostHttpsPort != 0 {
+		vhostListener, err := conn.Listen(server.BindAddr, server.VhostHttpsPort)
+		if err != nil {
+			log.Error("Create vhost https listener error, %v", err)
+			os.Exit(1)
+		}
+		server.VhostHttpsMuxer, err = vhost.NewHttpsMuxer(vhostListener, 30*time.Second)
+		if err != nil {
+			log.Error("Create vhost httpsMuxer error, %v", err)
+		}
+	}
+
+	// create dashboard web server if DashboardPort is set, so it won't be 0
+	if server.DashboardPort != 0 {
+		err := server.RunDashboardServer(server.BindAddr, server.DashboardPort)
+		if err != nil {
+			log.Error("Create dashboard web server error, %v", err)
+			os.Exit(1)
+		}
+	}
+
+	log.Info("Start frps success")
+	if server.PrivilegeMode == true {
+		log.Info("PrivilegeMode is enabled, you should pay more attention to security issues")
+	}
+	ProcessControlConn(l)
+}

src/frp/cmd/frpc/control.go

@@ -1,155 +0,0 @@
-package main
-
-import (
-	"encoding/json"
-	"fmt"
-	"io"
-	"sync"
-	"time"
-
-	"frp/models/client"
-	"frp/models/consts"
-	"frp/models/msg"
-	"frp/utils/conn"
-	"frp/utils/log"
-)
-
-var connection *conn.Conn = nil
-var heartBeatTimer *time.Timer = nil
-
-func ControlProcess(cli *client.ProxyClient, wait *sync.WaitGroup) {
-	defer wait.Done()
-
-	c, err := loginToServer(cli)
-	if err != nil {
-		log.Error("ProxyName [%s], connect to server failed!", cli.Name)
-		return
-	}
-	connection = c
-	defer connection.Close()
-
-	for {
-		// ignore response content now
-		content, err := connection.ReadLine()
-		if err == io.EOF || nil == connection || connection.IsClosed() {
-			log.Debug("ProxyName [%s], server close this control conn", cli.Name)
-			var sleepTime time.Duration = 1
-
-			// loop until connect to server
-			for {
-				log.Debug("ProxyName [%s], try to reconnect to server[%s:%d]...", cli.Name, client.ServerAddr, client.ServerPort)
-				tmpConn, err := loginToServer(cli)
-				if err == nil {
-					connection.Close()
-					connection = tmpConn
-					break
-				}
-
-				if sleepTime < 60 {
-					sleepTime = sleepTime * 2
-				}
-				time.Sleep(sleepTime * time.Second)
-			}
-			continue
-		} else if err != nil {
-			log.Warn("ProxyName [%s], read from server error, %v", cli.Name, err)
-			continue
-		}
-
-		clientCtlRes := &msg.ClientCtlRes{}
-		if err := json.Unmarshal([]byte(content), clientCtlRes); err != nil {
-			log.Warn("Parse err: %v : %s", err, content)
-			continue
-		}
-		if consts.SCHeartBeatRes == clientCtlRes.GeneralRes.Code {
-			if heartBeatTimer != nil {
-				log.Debug("Client rcv heartbeat response")
-				heartBeatTimer.Reset(time.Duration(client.HeartBeatTimeout) * time.Second)
-			} else {
-				log.Error("heartBeatTimer is nil")
-			}
-			continue
-		}
-
-		cli.StartTunnel(client.ServerAddr, client.ServerPort)
-	}
-}
-
-func loginToServer(cli *client.ProxyClient) (c *conn.Conn, err error) {
-	c, err = conn.ConnectServer(client.ServerAddr, client.ServerPort)
-	if err != nil {
-		log.Error("ProxyName [%s], connect to server [%s:%d] error, %v", cli.Name, client.ServerAddr, client.ServerPort, err)
-		return
-	}
-
-	req := &msg.ClientCtlReq{
-		Type:      consts.CtlConn,
-		ProxyName: cli.Name,
-		Passwd:    cli.Passwd,
-	}
-	buf, _ := json.Marshal(req)
-	err = c.Write(string(buf) + "\n")
-	if err != nil {
-		log.Error("ProxyName [%s], write to server error, %v", cli.Name, err)
-		return
-	}
-
-	res, err := c.ReadLine()
-	if err != nil {
-		log.Error("ProxyName [%s], read from server error, %v", cli.Name, err)
-		return
-	}
-	log.Debug("ProxyName [%s], read [%s]", cli.Name, res)
-
-	clientCtlRes := &msg.ClientCtlRes{}
-	if err = json.Unmarshal([]byte(res), &clientCtlRes); err != nil {
-		log.Error("ProxyName [%s], format server response error, %v", cli.Name, err)
-		return
-	}
-
-	if clientCtlRes.Code != 0 {
-		log.Error("ProxyName [%s], start proxy error, %s", cli.Name, clientCtlRes.Msg)
-		return c, fmt.Errorf("%s", clientCtlRes.Msg)
-	}
-
-	go startHeartBeat(c)
-	log.Debug("ProxyName [%s], connect to server[%s:%d] success!", cli.Name, client.ServerAddr, client.ServerPort)
-
-	return
-}
-
-func startHeartBeat(c *conn.Conn) {
-	f := func() {
-		log.Error("HeartBeat timeout!")
-		if c != nil {
-			c.Close()
-		}
-	}
-	heartBeatTimer = time.AfterFunc(time.Duration(client.HeartBeatTimeout)*time.Second, f)
-	defer heartBeatTimer.Stop()
-
-	clientCtlReq := &msg.ClientCtlReq{
-		Type:      consts.CSHeartBeatReq,
-		ProxyName: "",
-		Passwd:    "",
-	}
-	request, err := json.Marshal(clientCtlReq)
-	if err != nil {
-		log.Warn("Serialize clientCtlReq err! Err: %v", err)
-	}
-
-	log.Debug("Start to send heartbeat")
-	for {
-		time.Sleep(time.Duration(client.HeartBeatInterval) * time.Second)
-		if c != nil && !c.IsClosed() {
-			err = c.Write(string(request) + "\n")
-			if err != nil {
-				log.Error("Send hearbeat to server failed! Err:%v", err)
-				continue
-			}
-		} else {
-			break
-		}
-	}
-	log.Debug("Heartbeat exit")
-}

src/frp/cmd/frpc/main.go

@@ -1,31 +0,0 @@
-package main
-
-import (
-	"os"
-	"sync"
-
-	"frp/models/client"
-	"frp/utils/log"
-)
-
-func main() {
-	err := client.LoadConf("./frpc.ini")
-	if err != nil {
-		os.Exit(-1)
-	}
-
-	log.InitLog(client.LogWay, client.LogFile, client.LogLevel)
-
-	// wait until all control goroutine exit
-	var wait sync.WaitGroup
-	wait.Add(len(client.ProxyClients))
-
-	for _, client := range client.ProxyClients {
-		go ControlProcess(client, &wait)
-	}
-
-	log.Info("Start frpc success")
-
-	wait.Wait()
-	log.Warn("All proxy exit!")
-}

src/frp/cmd/frps/control.go

@@ -1,204 +0,0 @@
-package main
-
-import (
-	"encoding/json"
-	"fmt"
-	"io"
-	"time"
-
-	"frp/models/consts"
-	"frp/models/msg"
-	"frp/models/server"
-	"frp/utils/conn"
-	"frp/utils/log"
-)
-
-func ProcessControlConn(l *conn.Listener) {
-	for {
-		c, err := l.GetConn()
-		if err != nil {
-			return
-		}
-		log.Debug("Get one new conn, %v", c.GetRemoteAddr())
-		go controlWorker(c)
-	}
-}
-
-// connection from every client and server
-func controlWorker(c *conn.Conn) {
-	// the first message is from client to server
-	// if error, close connection
-	res, err := c.ReadLine()
-	if err != nil {
-		log.Warn("Read error, %v", err)
-		return
-	}
-	log.Debug("get: %s", res)
-
-	clientCtlReq := &msg.ClientCtlReq{}
-	clientCtlRes := &msg.ClientCtlRes{}
-	if err := json.Unmarshal([]byte(res), &clientCtlReq); err != nil {
-		log.Warn("Parse err: %v : %s", err, res)
-		return
-	}
-
-	// check
-	succ, info, needRes := checkProxy(clientCtlReq, c)
-	if !succ {
-		clientCtlRes.Code = 1
-		clientCtlRes.Msg = info
-	}
-
-	if needRes {
-		defer c.Close()
-
-		buf, _ := json.Marshal(clientCtlRes)
-		err = c.Write(string(buf) + "\n")
-		if err != nil {
-			log.Warn("Write error, %v", err)
-			time.Sleep(1 * time.Second)
-			return
-		}
-	} else {
-		// work conn, just return
-		return
-	}
-
-	// other messages is from server to client
-	s, ok := server.ProxyServers[clientCtlReq.ProxyName]
-	if !ok {
-		log.Warn("ProxyName [%s] is not exist", clientCtlReq.ProxyName)
-		return
-	}
-
-	// read control msg from client
-	go readControlMsgFromClient(s, c)
-
-	serverCtlReq := &msg.ClientCtlReq{}
-	serverCtlReq.Type = consts.WorkConn
-	for {
-		closeFlag := s.WaitUserConn()
-		if closeFlag {
-			log.Debug("ProxyName [%s], goroutine for dealing user conn is closed", s.Name)
-			break
-		}
-		buf, _ := json.Marshal(serverCtlReq)
-		err = c.Write(string(buf) + "\n")
-		if err != nil {
-			log.Warn("ProxyName [%s], write to client error, proxy exit", s.Name)
-			s.Close()
-			return
-		}
-
-		log.Debug("ProxyName [%s], write to client to add work conn success", s.Name)
-	}
-
-	log.Info("ProxyName [%s], I'm dead!", s.Name)
-	return
-}
-
-func checkProxy(req *msg.ClientCtlReq, c *conn.Conn) (succ bool, info string, needRes bool) {
-	succ = false
-	needRes = true
-	// check if proxy name exist
-	s, ok := server.ProxyServers[req.ProxyName]
-	if !ok {
-		info = fmt.Sprintf("ProxyName [%s] is not exist", req.ProxyName)
-		log.Warn(info)
-		return
-	}
-
-	// check password
-	if req.Passwd != s.Passwd {
-		info = fmt.Sprintf("ProxyName [%s], password is not correct", req.ProxyName)
-		log.Warn(info)
-		return
-	}
-
-	// control conn
-	if req.Type == consts.CtlConn {
-		if s.Status != consts.Idle {
-			info = fmt.Sprintf("ProxyName [%s], already in use", req.ProxyName)
-			log.Warn(info)
-			return
-		}
-
-		// start proxy and listen for user conn, no block
-		err := s.Start()
-		if err != nil {
-			info = fmt.Sprintf("ProxyName [%s], start proxy error: %v", req.ProxyName, err.Error())
-			log.Warn(info)
-			return
-		}
-
-		log.Info("ProxyName [%s], start proxy success", req.ProxyName)
-	} else if req.Type == consts.WorkConn {
-		// work conn
-		needRes = false
-		if s.Status != consts.Working {
-			log.Warn("ProxyName [%s], is not working when it gets one new work conn", req.ProxyName)
-			return
-		}
-
-		s.GetNewCliConn(c)
-	} else {
-		info = fmt.Sprintf("ProxyName [%s], type [%d] unsupport", req.ProxyName, req.Type)
-		log.Warn(info)
-		return
-	}
-
-	succ = true
-	return
-}
-
-func readControlMsgFromClient(s *server.ProxyServer, c *conn.Conn) {
-	isContinueRead := true
-	f := func() {
-		isContinueRead = false
-		s.Close()
-		log.Error("ProxyName [%s], client heartbeat timeout", s.Name)
-	}
-	timer := time.AfterFunc(time.Duration(server.HeartBeatTimeout)*time.Second, f)
-	defer timer.Stop()
-
-	for isContinueRead {
-		content, err := c.ReadLine()
-		if err != nil {
-			if err == io.EOF {
-				log.Warn("ProxyName [%s], client is dead!", s.Name)
-				s.Close()
-				break
-			} else if nil == c || c.IsClosed() {
-				log.Warn("ProxyName [%s], client connection is closed", s.Name)
-				break
-			}
-
-			log.Error("ProxyName [%s], read error: %v", s.Name, err)
-			continue
-		}
-
-		clientCtlReq := &msg.ClientCtlReq{}
-		if err := json.Unmarshal([]byte(content), clientCtlReq); err != nil {
-			log.Warn("Parse err: %v : %s", err, content)
-			continue
-		}
-		if consts.CSHeartBeatReq == clientCtlReq.Type {
-			log.Debug("ProxyName [%s], get heartbeat", s.Name)
-			timer.Reset(time.Duration(server.HeartBeatTimeout) * time.Second)
-
-			clientCtlRes := &msg.ClientCtlRes{}
-			clientCtlRes.GeneralRes.Code = consts.SCHeartBeatRes
-			response, err := json.Marshal(clientCtlRes)
-			if err != nil {
-				log.Warn("Serialize ClientCtlRes err! err: %v", err)
-				continue
-			}
-
-			err = c.Write(string(response) + "\n")
-			if err != nil {
-				log.Error("Send heartbeat response to client failed! Err:%v", err)
-				continue
-			}
-		}
-	}
-}

src/frp/cmd/frps/main.go

@@ -1,27 +0,0 @@
-package main
-
-import (
-	"os"
-
-	"frp/models/server"
-	"frp/utils/conn"
-	"frp/utils/log"
-)
-
-func main() {
-	err := server.LoadConf("./frps.ini")
-	if err != nil {
-		os.Exit(-1)
-	}
-
-	log.InitLog(server.LogWay, server.LogFile, server.LogLevel)
-
-	l, err := conn.Listen(server.BindAddr, server.BindPort)
-	if err != nil {
-		log.Error("Create listener error, %v", err)
-		os.Exit(-1)
-	}
-
-	log.Info("Start frps success")
-	ProcessControlConn(l)
-}

src/frp/models/client/client.go

@@ -1,71 +0,0 @@
-package client
-
-import (
-	"encoding/json"
-
-	"frp/models/consts"
-	"frp/models/msg"
-	"frp/utils/conn"
-	"frp/utils/log"
-)
-
-type ProxyClient struct {
-	Name      string
-	Passwd    string
-	LocalPort int64
-}
-
-func (p *ProxyClient) GetLocalConn() (c *conn.Conn, err error) {
-	c, err = conn.ConnectServer("127.0.0.1", p.LocalPort)
-	if err != nil {
-		log.Error("ProxyName [%s], connect to local port error, %v", p.Name, err)
-	}
-	return
-}
-
-func (p *ProxyClient) GetRemoteConn(addr string, port int64) (c *conn.Conn, err error) {
-	defer func() {
-		if err != nil {
-			c.Close()
-		}
-	}()
-
-	c, err = conn.ConnectServer(addr, port)
-	if err != nil {
-		log.Error("ProxyName [%s], connect to server [%s:%d] error, %v", p.Name, addr, port, err)
-		return
-	}
-
-	req := &msg.ClientCtlReq{
-		Type:      consts.WorkConn,
-		ProxyName: p.Name,
-		Passwd:    p.Passwd,
-	}
-
-	buf, _ := json.Marshal(req)
-	err = c.Write(string(buf) + "\n")
-	if err != nil {
-		log.Error("ProxyName [%s], write to server error, %v", p.Name, err)
-		return
-	}
-
-	err = nil
-	return
-}
-
-func (p *ProxyClient) StartTunnel(serverAddr string, serverPort int64) (err error) {
-	localConn, err := p.GetLocalConn()
-	if err != nil {
-		return
-	}
-	remoteConn, err := p.GetRemoteConn(serverAddr, serverPort)
-	if err != nil {
-		return
-	}
-
-	// l means local, r means remote
-	log.Debug("Join two conns, (l[%s] r[%s]) (l[%s] r[%s])", localConn.GetLocalAddr(), localConn.GetRemoteAddr(),
-		remoteConn.GetLocalAddr(), remoteConn.GetRemoteAddr())
-	go conn.Join(localConn, remoteConn)
-	return nil
-}

src/frp/models/client/config.go

@@ -1,88 +0,0 @@
-package client
-
-import (
-	"fmt"
-	"strconv"
-
-	ini "github.com/vaughan0/go-ini"
-)
-
-// common config
-var (
-	ServerAddr        string = "0.0.0.0"
-	ServerPort        int64  = 7000
-	LogFile           string = "./frpc.log"
-	LogLevel          string = "warn"
-	LogWay            string = "file"
-	HeartBeatInterval int64  = 5
-	HeartBeatTimeout  int64  = 30
-)
-
-var ProxyClients map[string]*ProxyClient = make(map[string]*ProxyClient)
-
-func LoadConf(confFile string) (err error) {
-	var tmpStr string
-	var ok bool
-
-	conf, err := ini.LoadFile(confFile)
-	if err != nil {
-		return err
-	}
-
-	// common
-	tmpStr, ok = conf.Get("common", "server_addr")
-	if ok {
-		ServerAddr = tmpStr
-	}
-
-	tmpStr, ok = conf.Get("common", "server_port")
-	if ok {
-		ServerPort, _ = strconv.ParseInt(tmpStr, 10, 64)
-	}
-
-	tmpStr, ok = conf.Get("common", "log_file")
-	if ok {
-		LogFile = tmpStr
-	}
-
-	tmpStr, ok = conf.Get("common", "log_level")
-	if ok {
-		LogLevel = tmpStr
-	}
-
-	tmpStr, ok = conf.Get("common", "log_way")
-	if ok {
-		LogWay = tmpStr
-	}
-
-	// servers
-	for name, section := range conf {
-		if name != "common" {
-			proxyClient := &ProxyClient{}
-			proxyClient.Name = name
-
-			proxyClient.Passwd, ok = section["passwd"]
-			if !ok {
-				return fmt.Errorf("Parse ini file error: proxy [%s] no passwd found", proxyClient.Name)
-			}
-
-			portStr, ok := section["local_port"]
-			if ok {
-				proxyClient.LocalPort, err = strconv.ParseInt(portStr, 10, 64)
-				if err != nil {
-					return fmt.Errorf("Parse ini file error: proxy [%s] local_port error", proxyClient.Name)
-				}
-			} else {
-				return fmt.Errorf("Parse ini file error: proxy [%s] local_port not found", proxyClient.Name)
-			}
-
-			ProxyClients[proxyClient.Name] = proxyClient
-		}
-	}
-
-	if len(ProxyClients) == 0 {
-		return fmt.Errorf("Parse ini file error: no proxy config found")
-	}
-
-	return nil
-}

src/frp/models/consts/consts.go

@@ -1,23 +0,0 @@
-package consts
-
-// server status
-const (
-	Idle = iota
-	Working
-)
-
-// connection type
-const (
-	CtlConn = iota
-	WorkConn
-)
-
-// msg from client to server
-const (
-	CSHeartBeatReq = 1
-)
-
-// msg from server to client
-const (
-	SCHeartBeatRes = 100
-)

src/frp/models/msg/msg.go

@@ -1,20 +0,0 @@
-package msg
-
-type GeneralRes struct {
-	Code int64  `json:"code"`
-	Msg  string `json:"msg"`
-}
-
-type ClientCtlReq struct {
-	Type      int64  `json:"type"`
-	ProxyName string `json:"proxy_name"`
-	Passwd    string `json:"passwd"`
-}
-
-type ClientCtlRes struct {
-	GeneralRes
-}
-
-type ServerCtlReq struct {
-	Type int64 `json:"type"`
-}

src/frp/models/server/config.go

@@ -1,94 +0,0 @@
-package server
-
-import (
-	"fmt"
-	"strconv"
-
-	ini "github.com/vaughan0/go-ini"
-)
-
-// common config
-var (
-	BindAddr         string = "0.0.0.0"
-	BindPort         int64  = 9527
-	LogFile          string = "./frps.log"
-	LogLevel         string = "warn"
-	LogWay           string = "file"
-	HeartBeatTimeout int64  = 30
-	UserConnTimeout  int64  = 10
-)
-
-var ProxyServers map[string]*ProxyServer = make(map[string]*ProxyServer)
-
-func LoadConf(confFile string) (err error) {
-	var tmpStr string
-	var ok bool
-
-	conf, err := ini.LoadFile(confFile)
-	if err != nil {
-		return err
-	}
-
-	// common
-	tmpStr, ok = conf.Get("common", "bind_addr")
-	if ok {
-		BindAddr = tmpStr
-	}
-
-	tmpStr, ok = conf.Get("common", "bind_port")
-	if ok {
-		BindPort, _ = strconv.ParseInt(tmpStr, 10, 64)
-	}
-
-	tmpStr, ok = conf.Get("common", "log_file")
-	if ok {
-		LogFile = tmpStr
-	}
-
-	tmpStr, ok = conf.Get("common", "log_level")
-	if ok {
-		LogLevel = tmpStr
-	}
-
-	tmpStr, ok = conf.Get("common", "log_way")
-	if ok {
-		LogWay = tmpStr
-	}
-
-	// servers
-	for name, section := range conf {
-		if name != "common" {
-			proxyServer := &ProxyServer{}
-			proxyServer.Name = name
-
-			proxyServer.Passwd, ok = section["passwd"]
-			if !ok {
-				return fmt.Errorf("Parse ini file error: proxy [%s] no passwd found", proxyServer.Name)
-			}
-
-			proxyServer.BindAddr, ok = section["bind_addr"]
-			if !ok {
-				proxyServer.BindAddr = "0.0.0.0"
-			}
-
-			portStr, ok := section["listen_port"]
-			if ok {
-				proxyServer.ListenPort, err = strconv.ParseInt(portStr, 10, 64)
-				if err != nil {
-					return fmt.Errorf("Parse ini file error: proxy [%s] listen_port error", proxyServer.Name)
-				}
-			} else {
-				return fmt.Errorf("Parse ini file error: proxy [%s] listen_port not found", proxyServer.Name)
-			}
-
-			proxyServer.Init()
-			ProxyServers[proxyServer.Name] = proxyServer
-		}
-	}
-
-	if len(ProxyServers) == 0 {
-		return fmt.Errorf("Parse ini file error: no proxy config found")
-	}
-
-	return nil
-}

src/frp/models/server/server.go

@@ -1,150 +0,0 @@
-package server
-
-import (
-	"container/list"
-	"sync"
-	"time"
-
-	"frp/models/consts"
-	"frp/utils/conn"
-	"frp/utils/log"
-)
-
-type ProxyServer struct {
-	Name       string
-	Passwd     string
-	BindAddr   string
-	ListenPort int64
-	Status     int64
-
-	listener     *conn.Listener  // accept new connection from remote users
-	ctlMsgChan   chan int64      // every time accept a new user conn, put "1" to the channel
-	cliConnChan  chan *conn.Conn // get client conns from control goroutine
-	userConnList *list.List      // store user conns
-	mutex        sync.Mutex
-}
-
-func (p *ProxyServer) Init() {
-	p.Status = consts.Idle
-	p.cliConnChan = make(chan *conn.Conn)
-	p.ctlMsgChan = make(chan int64)
-	p.userConnList = list.New()
-}
-
-func (p *ProxyServer) Lock() {
-	p.mutex.Lock()
-}
-
-func (p *ProxyServer) Unlock() {
-	p.mutex.Unlock()
-}
-
-// start listening for user conns
-func (p *ProxyServer) Start() (err error) {
-	p.Init()
-	p.listener, err = conn.Listen(p.BindAddr, p.ListenPort)
-	if err != nil {
-		return err
-	}
-
-	p.Status = consts.Working
-
-	// start a goroutine for listener to accept user connection
-	go func() {
-		for {
-			// block
-			// if listener is closed, err returned
-			c, err := p.listener.GetConn()
-			if err != nil {
-				log.Info("ProxyName [%s], listener is closed", p.Name)
-				return
-			}
-			log.Debug("ProxyName [%s], get one new user conn [%s]", p.Name, c.GetRemoteAddr())
-
-			// insert into list
-			p.Lock()
-			if p.Status != consts.Working {
-				log.Debug("ProxyName [%s] is not working, new user conn close", p.Name)
-				c.Close()
-				p.Unlock()
-				return
-			}
-			p.userConnList.PushBack(c)
-			p.Unlock()
-
-			// put msg to control conn
-			p.ctlMsgChan <- 1
-
-			// set timeout
-			time.AfterFunc(time.Duration(UserConnTimeout)*time.Second, func() {
-				p.Lock()
-				defer p.Unlock()
-				element := p.userConnList.Front()
-				if element == nil {
-					return
-				}
-
-				userConn := element.Value.(*conn.Conn)
-				if userConn == c {
-					log.Warn("ProxyName [%s], user conn [%s] timeout", p.Name, c.GetRemoteAddr())
-				}
-			})
-		}
-	}()
-
-	// start another goroutine for join two conns from client and user
-	go func() {
-		for {
-			cliConn, ok := <-p.cliConnChan
-			if !ok {
-				return
-			}
-
-			p.Lock()
-			element := p.userConnList.Front()
-
-			var userConn *conn.Conn
-			if element != nil {
-				userConn = element.Value.(*conn.Conn)
-				p.userConnList.Remove(element)
-			} else {
-				cliConn.Close()
-				p.Unlock()
-				continue
-			}
-			p.Unlock()
-
-			// msg will transfer to another without modifying
-			// l means local, r means remote
-			log.Debug("Join two conns, (l[%s] r[%s]) (l[%s] r[%s])", cliConn.GetLocalAddr(), cliConn.GetRemoteAddr(),
-				userConn.GetLocalAddr(), userConn.GetRemoteAddr())
-			go conn.Join(cliConn, userConn)
-		}
-	}()
-
-	return nil
-}
-
-func (p *ProxyServer) Close() {
-	p.Lock()
-	p.Status = consts.Idle
-	p.listener.Close()
-	close(p.ctlMsgChan)
-	close(p.cliConnChan)
-	p.userConnList = list.New()
-	p.Unlock()
-}
-
-func (p *ProxyServer) WaitUserConn() (closeFlag bool) {
-	closeFlag = false
-
-	_, ok := <-p.ctlMsgChan
-	if !ok {
-		closeFlag = true
-	}
-	return
-}
-
-func (p *ProxyServer) GetNewCliConn(c *conn.Conn) {
-	p.cliConnChan <- c
-}

src/frp/utils/conn/conn.go

@@ -1,149 +0,0 @@
-package conn
-
-import (
-	"bufio"
-	"fmt"
-	"io"
-	"net"
-	"sync"
-
-	"frp/utils/log"
-)
-
-type Listener struct {
-	addr      net.Addr
-	l         *net.TCPListener
-	conns     chan *Conn
-	closeFlag bool
-}
-
-func Listen(bindAddr string, bindPort int64) (l *Listener, err error) {
-	tcpAddr, err := net.ResolveTCPAddr("tcp4", fmt.Sprintf("%s:%d", bindAddr, bindPort))
-	listener, err := net.ListenTCP("tcp", tcpAddr)
-	if err != nil {
-		return l, err
-	}
-
-	l = &Listener{
-		addr:      listener.Addr(),
-		l:         listener,
-		conns:     make(chan *Conn),
-		closeFlag: false,
-	}
-
-	go func() {
-		for {
-			conn, err := l.l.AcceptTCP()
-			if err != nil {
-				if l.closeFlag {
-					return
-				}
-				continue
-			}
-
-			c := &Conn{
-				TcpConn:   conn,
-				closeFlag: false,
-			}
-			c.Reader = bufio.NewReader(c.TcpConn)
-			l.conns <- c
-		}
-	}()
-	return l, err
-}
-
-// wait util get one new connection or listener is closed
-// if listener is closed, err returned
-func (l *Listener) GetConn() (conn *Conn, err error) {
-	var ok bool
-	conn, ok = <-l.conns
-	if !ok {
-		return conn, fmt.Errorf("channel close")
-	}
-	return conn, nil
-}
-
-func (l *Listener) Close() {
-	if l.l != nil && l.closeFlag == false {
-		l.closeFlag = true
-		l.l.Close()
-		close(l.conns)
-	}
-}
-
-// wrap for TCPConn
-type Conn struct {
-	TcpConn   *net.TCPConn
-	Reader    *bufio.Reader
-	closeFlag bool
-}
-
-func ConnectServer(host string, port int64) (c *Conn, err error) {
-	c = &Conn{}
-	servertAddr, err := net.ResolveTCPAddr("tcp4", fmt.Sprintf("%s:%d", host, port))
-	if err != nil {
-		return
-	}
-	conn, err := net.DialTCP("tcp", nil, servertAddr)
-	if err != nil {
-		return
-	}
-	c.TcpConn = conn
-	c.Reader = bufio.NewReader(c.TcpConn)
-	c.closeFlag = false
-	return c, nil
-}
-
-func (c *Conn) GetRemoteAddr() (addr string) {
-	return c.TcpConn.RemoteAddr().String()
-}
-
-func (c *Conn) GetLocalAddr() (addr string) {
-	return c.TcpConn.LocalAddr().String()
-}
-
-func (c *Conn) ReadLine() (buff string, err error) {
-	buff, err = c.Reader.ReadString('\n')
-	if err == io.EOF {
-		c.closeFlag = true
-	}
-	return buff, err
-}
-
-func (c *Conn) Write(content string) (err error) {
-	_, err = c.TcpConn.Write([]byte(content))
-	return err
-}
-
-func (c *Conn) Close() {
-	if c.TcpConn != nil && c.closeFlag == false {
-		c.closeFlag = true
-		c.TcpConn.Close()
-	}
-}
-
-func (c *Conn) IsClosed() bool {
-	return c.closeFlag
-}
-
-// will block until connection close
-func Join(c1 *Conn, c2 *Conn) {
-	var wait sync.WaitGroup
-	pipe := func(to *Conn, from *Conn) {
-		defer to.Close()
-		defer from.Close()
-		defer wait.Done()
-
-		var err error
-		_, err = io.Copy(to.TcpConn, from.TcpConn)
-		if err != nil {
-			log.Warn("join conns error, %v", err)
-		}
-	}
-
-	wait.Add(2)
-	go pipe(c1, c2)
-	go pipe(c2, c1)
-	wait.Wait()
-	return
-}

src/frp/utils/log/log.go

@@ -1,64 +0,0 @@
-package log
-
-import (
-	"github.com/astaxie/beego/logs"
-)
-
-var Log *logs.BeeLogger
-
-func init() {
-	Log = logs.NewLogger(1000)
-	Log.EnableFuncCallDepth(true)
-	Log.SetLogFuncCallDepth(Log.GetLogFuncCallDepth() + 1)
-}
-
-func InitLog(logWay string, logFile string, logLevel string) {
-	SetLogFile(logWay, logFile)
-	SetLogLevel(logLevel)
-}
-
-// logWay: such as file or console
-func SetLogFile(logWay string, logFile string) {
-	if logWay == "console" {
-		Log.SetLogger("console", "")
-	} else {
-		Log.SetLogger("file", `{"filename": "`+logFile+`"}`)
-	}
-}
-
-// value: error, warning, info, debug
-func SetLogLevel(logLevel string) {
-	level := 4 // warning
-
-	switch logLevel {
-	case "error":
-		level = 3
-	case "warn":
-		level = 4
-	case "info":
-		level = 6
-	case "debug":
-		level = 7
-	default:
-		level = 4
-	}
-
-	Log.SetLevel(level)
-}
-
-// wrap log
-func Error(format string, v ...interface{}) {
-	Log.Error(format, v...)
-}
-
-func Warn(format string, v ...interface{}) {
-	Log.Warn(format, v...)
-}
-
-func Info(format string, v ...interface{}) {
-	Log.Info(format, v...)
-}
-
-func Debug(format string, v ...interface{}) {
-	Log.Debug(format, v...)
-}

src/frp/utils/pcrypto/pcrypto.go

@@ -1,87 +0,0 @@
-package pcrypto
-
-import (
-	"bytes"
-	"compress/gzip"
-	"crypto/aes"
-	"crypto/cipher"
-	"encoding/base64"
-	"encoding/hex"
-	"errors"
-	"fmt"
-	"io/ioutil"
-)
-
-type Pcrypto struct {
-	pkey []byte
-	paes cipher.Block
-}
-
-func (pc *Pcrypto) Init(key []byte) error {
-	var err error
-	pc.pkey = PKCS7Padding(key, aes.BlockSize)
-	pc.paes, err = aes.NewCipher(pc.pkey)
-
-	return err
-}
-
-func (pc *Pcrypto) Encrypto(src []byte) ([]byte, error) {
-	// aes
-	src = PKCS7Padding(src, aes.BlockSize)
-	blockMode := cipher.NewCBCEncrypter(pc.paes, pc.pkey)
-	crypted := make([]byte, len(src))
-	blockMode.CryptBlocks(crypted, src)
-
-	// gzip
-	var zbuf bytes.Buffer
-	zwr := gzip.NewWriter(&zbuf)
-	defer zwr.Close()
-	zwr.Write(crypted)
-	zwr.Flush()
-
-	// base64
-	return []byte(base64.StdEncoding.EncodeToString(zbuf.Bytes())), nil
-}
-
-func (pc *Pcrypto) Decrypto(str []byte) ([]byte, error) {
-	// base64
-	data, err := base64.StdEncoding.DecodeString(string(str))
-	if err != nil {
-		return nil, err
-	}
-
-	// gunzip
-	zbuf := bytes.NewBuffer(data)
-	zrd, _ := gzip.NewReader(zbuf)
-	defer zrd.Close()
-	data, _ = ioutil.ReadAll(zrd)
-
-	// aes
-	decryptText, err := hex.DecodeString(fmt.Sprintf("%x", data))
-	if err != nil {
-		return nil, err
-	}
-
-	if len(decryptText)%aes.BlockSize != 0 {
-		return nil, errors.New("crypto/cipher: ciphertext is not a multiple of the block size")
-	}
-
-	blockMode := cipher.NewCBCDecrypter(pc.paes, pc.pkey)
-
-	blockMode.CryptBlocks(decryptText, decryptText)
-	decryptText = PKCS7UnPadding(decryptText)
-
-	return decryptText, nil
-}
-
-func PKCS7Padding(ciphertext []byte, blockSize int) []byte {
-	padding := blockSize - len(ciphertext)%blockSize
-	padtext := bytes.Repeat([]byte{byte(padding)}, padding)
-	return append(ciphertext, padtext...)
-}
-
-func PKCS7UnPadding(origData []byte) []byte {
-	length := len(origData)
-	unpadding := int(origData[length-1])
-	return origData[:(length - unpadding)]
-}

src/frp/utils/pcrypto/pcrypto_test.go

@@ -1,47 +0,0 @@
-package pcrypto
-
-import (
-	"crypto/aes"
-	"fmt"
-	"testing"
-)
-
-func TestEncrypto(t *testing.T) {
-	pp := new(Pcrypto)
-	pp.Init([]byte("Hana"))
-	res, err := pp.Encrypto([]byte("Just One Test!"))
-	if err != nil {
-		t.Error(err)
-	}
-
-	fmt.Printf("[%x]\n", res)
-}
-
-func TestDecrypto(t *testing.T) {
-	pp := new(Pcrypto)
-	pp.Init([]byte("Hana"))
-	res, err := pp.Encrypto([]byte("Just One Test!"))
-	if err != nil {
-		t.Error(err)
-	}
-
-	res, err = pp.Decrypto(res)
-	if err != nil {
-		t.Error(err)
-	}
-
-	fmt.Printf("[%s]\n", string(res))
-}
-
-func TestPKCS7Padding(t *testing.T) {
-	ltt := []byte("Test_PKCS7Padding")
-	ltt = PKCS7Padding(ltt, aes.BlockSize)
-	fmt.Printf("[%x]\n", (ltt))
-}
-
-func TestPKCS7UnPadding(t *testing.T) {
-	ltt := []byte("Test_PKCS7Padding")
-	ltt = PKCS7Padding(ltt, aes.BlockSize)
-	ltt = PKCS7UnPadding(ltt)
-	fmt.Printf("[%x]\n", ltt)
-}

src/models/client/client.go

@@ -0,0 +1,186 @@
+// 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 client
+
+import (
+	"encoding/json"
+	"fmt"
+	"sync"
+	"time"
+
+	"github.com/fatedier/frp/src/models/config"
+	"github.com/fatedier/frp/src/models/consts"
+	"github.com/fatedier/frp/src/models/msg"
+	"github.com/fatedier/frp/src/utils/conn"
+	"github.com/fatedier/frp/src/utils/log"
+	"github.com/fatedier/frp/src/utils/pcrypto"
+)
+
+type ProxyClient struct {
+	config.BaseConf
+	LocalIp   string
+	LocalPort int64
+
+	RemotePort    int64
+	CustomDomains []string
+	Locations     []string
+
+	udpTunnel *conn.Conn
+	once      sync.Once
+	closeFlag bool
+
+	mutex sync.RWMutex
+}
+
+// if proxy type is udp, keep a tcp connection for transferring udp packages
+func (pc *ProxyClient) StartUdpTunnelOnce(addr string, port int64) {
+	pc.once.Do(func() {
+		var err error
+		var c *conn.Conn
+		udpProcessor := NewUdpProcesser(nil, pc.LocalIp, pc.LocalPort)
+		for {
+			if !pc.IsClosed() && (pc.udpTunnel == nil || pc.udpTunnel.IsClosed()) {
+				if HttpProxy == "" {
+					c, err = conn.ConnectServer(fmt.Sprintf("%s:%d", addr, port))
+				} else {
+					c, err = conn.ConnectServerByHttpProxy(HttpProxy, fmt.Sprintf("%s:%d", addr, port))
+				}
+				if err != nil {
+					log.Error("ProxyName [%s], udp tunnel connect to server [%s:%d] error, %v", pc.Name, addr, port, err)
+					time.Sleep(10 * time.Second)
+					continue
+				}
+				log.Info("ProxyName [%s], udp tunnel connect to server [%s:%d] success", pc.Name, addr, port)
+
+				nowTime := time.Now().Unix()
+				req := &msg.ControlReq{
+					Type:          consts.NewWorkConnUdp,
+					ProxyName:     pc.Name,
+					PrivilegeMode: pc.PrivilegeMode,
+					Timestamp:     nowTime,
+				}
+				if pc.PrivilegeMode == true {
+					req.PrivilegeKey = pcrypto.GetAuthKey(pc.Name + PrivilegeToken + fmt.Sprintf("%d", nowTime))
+				} else {
+					req.AuthKey = pcrypto.GetAuthKey(pc.Name + pc.AuthToken + fmt.Sprintf("%d", nowTime))
+				}
+
+				buf, _ := json.Marshal(req)
+				err = c.WriteString(string(buf) + "\n")
+				if err != nil {
+					log.Error("ProxyName [%s], udp tunnel write to server error, %v", pc.Name, err)
+					c.Close()
+					time.Sleep(1 * time.Second)
+					continue
+				}
+				pc.mutex.Lock()
+				pc.udpTunnel = c
+				udpProcessor.UpdateTcpConn(pc.udpTunnel)
+				pc.mutex.Unlock()
+
+				udpProcessor.Run()
+			}
+			time.Sleep(1 * time.Second)
+		}
+	})
+}
+
+func (pc *ProxyClient) CloseUdpTunnel() {
+	pc.mutex.RLock()
+	defer pc.mutex.RUnlock()
+	if pc.udpTunnel != nil {
+		pc.udpTunnel.Close()
+	}
+}
+
+func (pc *ProxyClient) GetLocalConn() (c *conn.Conn, err error) {
+	c, err = conn.ConnectServer(fmt.Sprintf("%s:%d", pc.LocalIp, pc.LocalPort))
+	if err != nil {
+		log.Error("ProxyName [%s], connect to local port error, %v", pc.Name, err)
+	}
+	return
+}
+
+func (pc *ProxyClient) GetRemoteConn(addr string, port int64) (c *conn.Conn, err error) {
+	defer func() {
+		if err != nil && c != nil {
+			c.Close()
+		}
+	}()
+
+	if HttpProxy == "" {
+		c, err = conn.ConnectServer(fmt.Sprintf("%s:%d", addr, port))
+	} else {
+		c, err = conn.ConnectServerByHttpProxy(HttpProxy, fmt.Sprintf("%s:%d", addr, port))
+	}
+	if err != nil {
+		log.Error("ProxyName [%s], connect to server [%s:%d] error, %v", pc.Name, addr, port, err)
+		return
+	}
+
+	nowTime := time.Now().Unix()
+	req := &msg.ControlReq{
+		Type:          consts.NewWorkConn,
+		ProxyName:     pc.Name,
+		PrivilegeMode: pc.PrivilegeMode,
+		Timestamp:     nowTime,
+	}
+	if pc.PrivilegeMode == true {
+		req.PrivilegeKey = pcrypto.GetAuthKey(pc.Name + PrivilegeToken + fmt.Sprintf("%d", nowTime))
+	} else {
+		req.AuthKey = pcrypto.GetAuthKey(pc.Name + pc.AuthToken + fmt.Sprintf("%d", nowTime))
+	}
+
+	buf, _ := json.Marshal(req)
+	err = c.WriteString(string(buf) + "\n")
+	if err != nil {
+		log.Error("ProxyName [%s], write to server error, %v", pc.Name, err)
+		return
+	}
+
+	err = nil
+	return
+}
+
+func (pc *ProxyClient) StartTunnel(serverAddr string, serverPort int64) (err error) {
+	localConn, err := pc.GetLocalConn()
+	if err != nil {
+		return
+	}
+	remoteConn, err := pc.GetRemoteConn(serverAddr, serverPort)
+	if err != nil {
+		return
+	}
+
+	// l means local, r means remote
+	log.Debug("Join two connections, (l[%s] r[%s]) (l[%s] r[%s])", localConn.GetLocalAddr(), localConn.GetRemoteAddr(),
+		remoteConn.GetLocalAddr(), remoteConn.GetRemoteAddr())
+	needRecord := false
+	go msg.JoinMore(localConn, remoteConn, pc.BaseConf, needRecord)
+
+	return nil
+}
+
+func (pc *ProxyClient) SetCloseFlag(closeFlag bool) {
+	pc.mutex.Lock()
+	defer pc.mutex.Unlock()
+	pc.closeFlag = closeFlag
+}
+
+func (pc *ProxyClient) IsClosed() bool {
+	pc.mutex.RLock()
+	defer pc.mutex.RUnlock()
+	return pc.closeFlag
+}

src/models/client/config.go

@@ -0,0 +1,302 @@
+// 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 client
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+
+	ini "github.com/vaughan0/go-ini"
+)
+
+// common config
+var (
+	ServerAddr        string = "0.0.0.0"
+	ServerPort        int64  = 7000
+	HttpProxy         string = ""
+	LogFile           string = "console"
+	LogWay            string = "console"
+	LogLevel          string = "info"
+	LogMaxDays        int64  = 3
+	PrivilegeToken    string = ""
+	HeartBeatInterval int64  = 10
+	HeartBeatTimeout  int64  = 30
+)
+
+var ProxyClients map[string]*ProxyClient = make(map[string]*ProxyClient)
+
+func LoadConf(confFile string) (err error) {
+	var tmpStr string
+	var ok bool
+
+	conf, err := ini.LoadFile(confFile)
+	if err != nil {
+		return err
+	}
+
+	// common
+	tmpStr, ok = conf.Get("common", "server_addr")
+	if ok {
+		ServerAddr = tmpStr
+	}
+
+	tmpStr, ok = conf.Get("common", "server_port")
+	if ok {
+		ServerPort, _ = strconv.ParseInt(tmpStr, 10, 64)
+	}
+
+	tmpStr, ok = conf.Get("common", "http_proxy")
+	if ok {
+		HttpProxy = tmpStr
+	} else {
+		// get http_proxy from env
+		HttpProxy = os.Getenv("http_proxy")
+	}
+
+	tmpStr, ok = conf.Get("common", "log_file")
+	if ok {
+		LogFile = tmpStr
+		if LogFile == "console" {
+			LogWay = "console"
+		} else {
+			LogWay = "file"
+		}
+	}
+
+	tmpStr, ok = conf.Get("common", "log_level")
+	if ok {
+		LogLevel = tmpStr
+	}
+
+	tmpStr, ok = conf.Get("common", "log_max_days")
+	if ok {
+		LogMaxDays, _ = strconv.ParseInt(tmpStr, 10, 64)
+	}
+
+	tmpStr, ok = conf.Get("common", "privilege_token")
+	if ok {
+		PrivilegeToken = tmpStr
+	}
+
+	var authToken string
+	tmpStr, ok = conf.Get("common", "auth_token")
+	if ok {
+		authToken = tmpStr
+	}
+
+	tmpStr, ok = conf.Get("common", "heartbeat_timeout")
+	if ok {
+		v, err := strconv.ParseInt(tmpStr, 10, 64)
+		if err != nil {
+			return fmt.Errorf("Parse conf error: heartbeat_timeout is incorrect")
+		} else {
+			HeartBeatTimeout = v
+		}
+	}
+
+	tmpStr, ok = conf.Get("common", "heartbeat_interval")
+	if ok {
+		v, err := strconv.ParseInt(tmpStr, 10, 64)
+		if err != nil {
+			return fmt.Errorf("Parse conf error: heartbeat_interval is incorrect")
+		} else {
+			HeartBeatInterval = v
+		}
+	}
+
+	if HeartBeatInterval <= 0 {
+		return fmt.Errorf("Parse conf error: heartbeat_interval is incorrect")
+	}
+
+	if HeartBeatTimeout < HeartBeatInterval {
+		return fmt.Errorf("Parse conf error: heartbeat_timeout is incorrect, heartbeat_timeout is less than heartbeat_interval")
+	}
+
+	// proxies
+	for name, section := range conf {
+		if name != "common" {
+			proxyClient := &ProxyClient{}
+			// name
+			proxyClient.Name = name
+
+			// auth_token
+			proxyClient.AuthToken = authToken
+
+			// local_ip
+			proxyClient.LocalIp, ok = section["local_ip"]
+			if !ok {
+				// use 127.0.0.1 as default
+				proxyClient.LocalIp = "127.0.0.1"
+			}
+
+			// local_port
+			tmpStr, ok = section["local_port"]
+			if ok {
+				proxyClient.LocalPort, err = strconv.ParseInt(tmpStr, 10, 64)
+				if err != nil {
+					return fmt.Errorf("Parse conf error: proxy [%s] local_port error", proxyClient.Name)
+				}
+			} else {
+				return fmt.Errorf("Parse conf error: proxy [%s] local_port not found", proxyClient.Name)
+			}
+
+			// type
+			proxyClient.Type = "tcp"
+			tmpStr, ok = section["type"]
+			if ok {
+				if tmpStr != "tcp" && tmpStr != "http" && tmpStr != "https" && tmpStr != "udp" {
+					return fmt.Errorf("Parse conf error: proxy [%s] type error", proxyClient.Name)
+				}
+				proxyClient.Type = tmpStr
+			}
+
+			// use_encryption
+			proxyClient.UseEncryption = false
+			tmpStr, ok = section["use_encryption"]
+			if ok && tmpStr == "true" {
+				proxyClient.UseEncryption = true
+			}
+
+			// use_gzip
+			proxyClient.UseGzip = false
+			tmpStr, ok = section["use_gzip"]
+			if ok && tmpStr == "true" {
+				proxyClient.UseGzip = true
+			}
+
+			if proxyClient.Type == "http" {
+				// host_header_rewrite
+				tmpStr, ok = section["host_header_rewrite"]
+				if ok {
+					proxyClient.HostHeaderRewrite = tmpStr
+				}
+				// http_user
+				tmpStr, ok = section["http_user"]
+				if ok {
+					proxyClient.HttpUserName = tmpStr
+				}
+				// http_pwd
+				tmpStr, ok = section["http_pwd"]
+				if ok {
+					proxyClient.HttpPassWord = tmpStr
+				}
+
+			}
+			if proxyClient.Type == "http" || proxyClient.Type == "https" {
+				// subdomain
+				tmpStr, ok = section["subdomain"]
+				if ok {
+					proxyClient.SubDomain = tmpStr
+				}
+			}
+
+			// privilege_mode
+			proxyClient.PrivilegeMode = false
+			tmpStr, ok = section["privilege_mode"]
+			if ok && tmpStr == "true" {
+				proxyClient.PrivilegeMode = true
+			}
+
+			// pool_count
+			proxyClient.PoolCount = 0
+			tmpStr, ok = section["pool_count"]
+			if ok {
+				tmpInt, err := strconv.ParseInt(tmpStr, 10, 64)
+				if err != nil || tmpInt < 0 {
+					return fmt.Errorf("Parse conf error: proxy [%s] pool_count error", proxyClient.Name)
+				}
+				proxyClient.PoolCount = tmpInt
+			}
+
+			// configures used in privilege mode
+			if proxyClient.PrivilegeMode == true {
+				if PrivilegeToken == "" {
+					return fmt.Errorf("Parse conf error: proxy [%s] privilege_token must be set when privilege_mode = true", proxyClient.Name)
+				} else {
+					proxyClient.PrivilegeToken = PrivilegeToken
+				}
+
+				if proxyClient.Type == "tcp" || proxyClient.Type == "udp" {
+					// remote_port
+					tmpStr, ok = section["remote_port"]
+					if ok {
+						proxyClient.RemotePort, err = strconv.ParseInt(tmpStr, 10, 64)
+						if err != nil {
+							return fmt.Errorf("Parse conf error: proxy [%s] remote_port error", proxyClient.Name)
+						}
+					} else {
+						return fmt.Errorf("Parse conf error: proxy [%s] remote_port not found", proxyClient.Name)
+					}
+				} else if proxyClient.Type == "http" {
+					// custom_domains
+					tmpStr, ok = section["custom_domains"]
+					if ok {
+						proxyClient.CustomDomains = strings.Split(tmpStr, ",")
+						for i, domain := range proxyClient.CustomDomains {
+							proxyClient.CustomDomains[i] = strings.ToLower(strings.TrimSpace(domain))
+						}
+					}
+
+					// subdomain
+					tmpStr, ok = section["subdomain"]
+					if ok {
+						proxyClient.SubDomain = tmpStr
+					}
+
+					if len(proxyClient.CustomDomains) == 0 && proxyClient.SubDomain == "" {
+						return fmt.Errorf("Parse conf error: proxy [%s] custom_domains and subdomain should set at least one of them when type is http", proxyClient.Name)
+					}
+
+					// locations
+					tmpStr, ok = section["locations"]
+					if ok {
+						proxyClient.Locations = strings.Split(tmpStr, ",")
+					} else {
+						proxyClient.Locations = []string{""}
+					}
+				} else if proxyClient.Type == "https" {
+					// custom_domains
+					tmpStr, ok = section["custom_domains"]
+					if ok {
+						proxyClient.CustomDomains = strings.Split(tmpStr, ",")
+						for i, domain := range proxyClient.CustomDomains {
+							proxyClient.CustomDomains[i] = strings.ToLower(strings.TrimSpace(domain))
+						}
+					}
+
+					// subdomain
+					tmpStr, ok = section["subdomain"]
+					if ok {
+						proxyClient.SubDomain = tmpStr
+					}
+
+					if len(proxyClient.CustomDomains) == 0 && proxyClient.SubDomain == "" {
+						return fmt.Errorf("Parse conf error: proxy [%s] custom_domains and subdomain should set at least one of them when type is https", proxyClient.Name)
+					}
+				}
+			}
+
+			ProxyClients[proxyClient.Name] = proxyClient
+		}
+	}
+
+	if len(ProxyClients) == 0 {
+		return fmt.Errorf("Parse conf error: no proxy config found")
+	}
+
+	return nil
+}

src/models/client/process_udp.go

@@ -0,0 +1,153 @@
+// 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 client
+
+import (
+	"fmt"
+	"io"
+	"net"
+	"sync"
+	"time"
+
+	"github.com/fatedier/frp/src/models/msg"
+	"github.com/fatedier/frp/src/utils/conn"
+	"github.com/fatedier/frp/src/utils/pool"
+)
+
+type UdpProcesser struct {
+	tcpConn *conn.Conn
+	closeCh chan struct{}
+
+	localAddr string
+
+	// cache local udp connections
+	// key is remoteAddr
+	localUdpConns map[string]*net.UDPConn
+	mutex         sync.RWMutex
+	tcpConnMutex  sync.RWMutex
+}
+
+func NewUdpProcesser(c *conn.Conn, localIp string, localPort int64) *UdpProcesser {
+	return &UdpProcesser{
+		tcpConn:       c,
+		closeCh:       make(chan struct{}),
+		localAddr:     fmt.Sprintf("%s:%d", localIp, localPort),
+		localUdpConns: make(map[string]*net.UDPConn),
+	}
+}
+
+func (up *UdpProcesser) UpdateTcpConn(c *conn.Conn) {
+	up.tcpConnMutex.Lock()
+	defer up.tcpConnMutex.Unlock()
+	up.tcpConn = c
+}
+
+func (up *UdpProcesser) Run() {
+	go up.ReadLoop()
+}
+
+func (up *UdpProcesser) ReadLoop() {
+	var (
+		buf string
+		err error
+	)
+	for {
+		udpPacket := &msg.UdpPacket{}
+
+		// read udp package from frps
+		buf, err = up.tcpConn.ReadLine()
+		if err != nil {
+			if err == io.EOF {
+				return
+			} else {
+				continue
+			}
+		}
+		err = udpPacket.UnPack([]byte(buf))
+		if err != nil {
+			continue
+		}
+
+		// write to local udp port
+		sendConn, ok := up.GetUdpConn(udpPacket.SrcStr)
+		if !ok {
+			dstAddr, err := net.ResolveUDPAddr("udp", up.localAddr)
+			if err != nil {
+				continue
+			}
+			sendConn, err = net.DialUDP("udp", nil, dstAddr)
+			if err != nil {
+				continue
+			}
+
+			up.SetUdpConn(udpPacket.SrcStr, sendConn)
+		}
+
+		_, err = sendConn.Write(udpPacket.Content)
+		if err != nil {
+			sendConn.Close()
+			continue
+		}
+
+		if !ok {
+			go up.Forward(udpPacket, sendConn)
+		}
+	}
+}
+
+func (up *UdpProcesser) Forward(udpPacket *msg.UdpPacket, singleConn *net.UDPConn) {
+	addr := udpPacket.SrcStr
+	defer up.RemoveUdpConn(addr)
+
+	buf := pool.GetBuf(2048)
+	for {
+		singleConn.SetReadDeadline(time.Now().Add(120 * time.Second))
+		n, remoteAddr, err := singleConn.ReadFromUDP(buf)
+		if err != nil {
+			return
+		}
+
+		// forward to frps
+		forwardPacket := msg.NewUdpPacket(buf[0:n], remoteAddr, udpPacket.Src)
+		up.tcpConnMutex.RLock()
+		err = up.tcpConn.WriteString(string(forwardPacket.Pack()) + "\n")
+		up.tcpConnMutex.RUnlock()
+		if err != nil {
+			return
+		}
+	}
+}
+
+func (up *UdpProcesser) GetUdpConn(addr string) (singleConn *net.UDPConn, ok bool) {
+	up.mutex.RLock()
+	defer up.mutex.RUnlock()
+	singleConn, ok = up.localUdpConns[addr]
+	return
+}
+
+func (up *UdpProcesser) SetUdpConn(addr string, conn *net.UDPConn) {
+	up.mutex.Lock()
+	defer up.mutex.Unlock()
+	up.localUdpConns[addr] = conn
+}
+
+func (up *UdpProcesser) RemoveUdpConn(addr string) {
+	up.mutex.Lock()
+	defer up.mutex.Unlock()
+	if c, ok := up.localUdpConns[addr]; ok {
+		c.Close()
+	}
+	delete(up.localUdpConns, addr)
+}

src/models/config/config.go

@@ -0,0 +1,30 @@
+// 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
+
+type BaseConf struct {
+	Name              string
+	AuthToken         string
+	Type              string
+	UseEncryption     bool
+	UseGzip           bool
+	PrivilegeMode     bool
+	PrivilegeToken    string
+	PoolCount         int64
+	HostHeaderRewrite string
+	HttpUserName      string
+	HttpPassWord      string
+	SubDomain         string
+}

src/models/consts/consts.go

@@ -0,0 +1,41 @@
+// 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 consts
+
+// server status
+const (
+	Idle = iota
+	Working
+	Closed
+)
+
+var (
+	StatusStr = []string{
+		"idle",
+		"working",
+		"closed",
+	}
+)
+
+// msg type
+const (
+	NewCtlConn = iota
+	NewWorkConn
+	NoticeUserConn
+	NewCtlConnRes
+	HeartbeatReq
+	HeartbeatRes
+	NewWorkConnUdp
+)

src/models/metric/server.go

@@ -0,0 +1,227 @@
+// 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 metric
+
+import (
+	"sort"
+	"sync"
+	"time"
+
+	"github.com/fatedier/frp/src/models/consts"
+)
+
+var (
+	DailyDataKeepDays   int = 7
+	ServerMetricInfoMap map[string]*ServerMetric
+	smMutex             sync.RWMutex
+)
+
+type ServerMetric struct {
+	Name          string   `json:"name"`
+	Type          string   `json:"type"`
+	BindAddr      string   `json:"bind_addr"`
+	ListenPort    int64    `json:"listen_port"`
+	CustomDomains []string `json:"custom_domains"`
+	Locations     []string `json:"locations"`
+	Status        string   `json:"status"`
+	UseEncryption bool     `json:"use_encryption"`
+	UseGzip       bool     `json:"use_gzip"`
+	PrivilegeMode bool     `json:"privilege_mode"`
+
+	// statistics
+	CurrentConns int64               `json:"current_conns"`
+	Daily        []*DailyServerStats `json:"daily"`
+	mutex        sync.RWMutex
+}
+
+type DailyServerStats struct {
+	Time             string `json:"time"`
+	FlowIn           int64  `json:"flow_in"`
+	FlowOut          int64  `json:"flow_out"`
+	TotalAcceptConns int64  `json:"total_accept_conns"`
+}
+
+// for sort
+type ServerMetricList []*ServerMetric
+
+func (l ServerMetricList) Len() int           { return len(l) }
+func (l ServerMetricList) Less(i, j int) bool { return l[i].Name < l[j].Name }
+func (l ServerMetricList) Swap(i, j int)      { l[i], l[j] = l[j], l[i] }
+
+func init() {
+	ServerMetricInfoMap = make(map[string]*ServerMetric)
+}
+
+func (s *ServerMetric) clone() *ServerMetric {
+	copy := *s
+	copy.CustomDomains = make([]string, len(s.CustomDomains))
+	var i int
+	for i = range copy.CustomDomains {
+		copy.CustomDomains[i] = s.CustomDomains[i]
+	}
+
+	copy.Daily = make([]*DailyServerStats, len(s.Daily))
+	for i = range copy.Daily {
+		tmpDaily := *s.Daily[i]
+		copy.Daily[i] = &tmpDaily
+	}
+	return &copy
+}
+
+func GetAllProxyMetrics() []*ServerMetric {
+	result := make(ServerMetricList, 0)
+	smMutex.RLock()
+	for _, metric := range ServerMetricInfoMap {
+		metric.mutex.RLock()
+		tmpMetric := metric.clone()
+		metric.mutex.RUnlock()
+		result = append(result, tmpMetric)
+	}
+	smMutex.RUnlock()
+
+	// sort for result by proxy name
+	sort.Sort(result)
+	return result
+}
+
+// if proxyName isn't exist, return nil
+func GetProxyMetrics(proxyName string) *ServerMetric {
+	smMutex.RLock()
+	defer smMutex.RUnlock()
+	metric, ok := ServerMetricInfoMap[proxyName]
+	if ok {
+		metric.mutex.RLock()
+		tmpMetric := metric.clone()
+		metric.mutex.RUnlock()
+		return tmpMetric
+	} else {
+		return nil
+	}
+}
+
+func SetProxyInfo(proxyName string, proxyType, bindAddr string,
+	useEncryption, useGzip, privilegeMode bool, customDomains []string,
+	locations []string, listenPort int64) {
+	smMutex.Lock()
+	info, ok := ServerMetricInfoMap[proxyName]
+	if !ok {
+		info = &ServerMetric{}
+		info.Daily = make([]*DailyServerStats, 0)
+	}
+	info.Name = proxyName
+	info.Type = proxyType
+	info.UseEncryption = useEncryption
+	info.UseGzip = useGzip
+	info.PrivilegeMode = privilegeMode
+	info.BindAddr = bindAddr
+	info.ListenPort = listenPort
+	info.CustomDomains = customDomains
+	info.Locations = locations
+	ServerMetricInfoMap[proxyName] = info
+	smMutex.Unlock()
+}
+
+func SetStatus(proxyName string, status int64) {
+	smMutex.RLock()
+	metric, ok := ServerMetricInfoMap[proxyName]
+	smMutex.RUnlock()
+	if ok {
+		metric.mutex.Lock()
+		metric.Status = consts.StatusStr[status]
+		metric.mutex.Unlock()
+	}
+}
+
+type DealFuncType func(*DailyServerStats)
+
+func DealDailyData(dailyData []*DailyServerStats, fn DealFuncType) (newDailyData []*DailyServerStats) {
+	now := time.Now().Format("20060102")
+	dailyLen := len(dailyData)
+	if dailyLen == 0 {
+		daily := &DailyServerStats{}
+		daily.Time = now
+		fn(daily)
+		dailyData = append(dailyData, daily)
+	} else {
+		daily := dailyData[dailyLen-1]
+		if daily.Time == now {
+			fn(daily)
+		} else {
+			newDaily := &DailyServerStats{}
+			newDaily.Time = now
+			fn(newDaily)
+			if dailyLen == DailyDataKeepDays {
+				for i := 0; i < dailyLen-1; i++ {
+					dailyData[i] = dailyData[i+1]
+				}
+				dailyData[dailyLen-1] = newDaily
+			} else {
+				dailyData = append(dailyData, newDaily)
+			}
+		}
+	}
+	return dailyData
+}
+
+func OpenConnection(proxyName string) {
+	smMutex.RLock()
+	metric, ok := ServerMetricInfoMap[proxyName]
+	smMutex.RUnlock()
+	if ok {
+		metric.mutex.Lock()
+		metric.CurrentConns++
+		metric.Daily = DealDailyData(metric.Daily, func(stats *DailyServerStats) {
+			stats.TotalAcceptConns++
+		})
+		metric.mutex.Unlock()
+	}
+}
+
+func CloseConnection(proxyName string) {
+	smMutex.RLock()
+	metric, ok := ServerMetricInfoMap[proxyName]
+	smMutex.RUnlock()
+	if ok {
+		metric.mutex.Lock()
+		metric.CurrentConns--
+		metric.mutex.Unlock()
+	}
+}
+
+func AddFlowIn(proxyName string, value int64) {
+	smMutex.RLock()
+	metric, ok := ServerMetricInfoMap[proxyName]
+	smMutex.RUnlock()
+	if ok {
+		metric.mutex.Lock()
+		metric.Daily = DealDailyData(metric.Daily, func(stats *DailyServerStats) {
+			stats.FlowIn += value
+		})
+		metric.mutex.Unlock()
+	}
+}
+
+func AddFlowOut(proxyName string, value int64) {
+	smMutex.RLock()
+	metric, ok := ServerMetricInfoMap[proxyName]
+	smMutex.RUnlock()
+	if ok {
+		metric.mutex.Lock()
+		metric.Daily = DealDailyData(metric.Daily, func(stats *DailyServerStats) {
+			stats.FlowOut += value
+		})
+		metric.mutex.Unlock()
+	}
+}

src/models/msg/msg.go

@@ -0,0 +1,49 @@
+// 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 msg
+
+type GeneralRes struct {
+	Code int64  `json:"code"`
+	Msg  string `json:"msg"`
+}
+
+// messages between control connections of frpc and frps
+type ControlReq struct {
+	Type          int64  `json:"type"`
+	ProxyName     string `json:"proxy_name"`
+	AuthKey       string `json:"auth_key"`
+	UseEncryption bool   `json:"use_encryption"`
+	UseGzip       bool   `json:"use_gzip"`
+	PoolCount     int64  `json:"pool_count"`
+
+	// configures used if privilege_mode is enabled
+	PrivilegeMode     bool     `json:"privilege_mode"`
+	PrivilegeKey      string   `json:"privilege_key"`
+	ProxyType         string   `json:"proxy_type"`
+	RemotePort        int64    `json:"remote_port"`
+	CustomDomains     []string `json:"custom_domains, omitempty"`
+	Locations         []string `json:"locations"`
+	HostHeaderRewrite string   `json:"host_header_rewrite"`
+	HttpUserName      string   `json:"http_username"`
+	HttpPassWord      string   `json:"http_password"`
+	SubDomain         string   `json:"subdomain"`
+	Timestamp         int64    `json:"timestamp"`
+}
+
+type ControlRes struct {
+	Type int64  `json:"type"`
+	Code int64  `json:"code"`
+	Msg  string `json:"msg"`
+}

src/models/msg/process.go

@@ -0,0 +1,257 @@
+// 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 msg
+
+import (
+	"bytes"
+	"encoding/binary"
+	"fmt"
+	"io"
+	"sync"
+
+	"github.com/fatedier/frp/src/models/config"
+	"github.com/fatedier/frp/src/models/metric"
+	"github.com/fatedier/frp/src/utils/conn"
+	"github.com/fatedier/frp/src/utils/log"
+	"github.com/fatedier/frp/src/utils/pcrypto"
+	"github.com/fatedier/frp/src/utils/pool"
+)
+
+// deprecated
+// will block until connection close
+func Join(c1 *conn.Conn, c2 *conn.Conn) {
+	var wait sync.WaitGroup
+	pipe := func(to *conn.Conn, from *conn.Conn) {
+		defer to.Close()
+		defer from.Close()
+		defer wait.Done()
+
+		var err error
+		_, err = io.Copy(to.TcpConn, from.TcpConn)
+		if err != nil {
+			log.Warn("join connections error, %v", err)
+		}
+	}
+
+	wait.Add(2)
+	go pipe(c1, c2)
+	go pipe(c2, c1)
+	wait.Wait()
+	return
+}
+
+// join two connections and do some operations
+func JoinMore(c1 io.ReadWriteCloser, c2 io.ReadWriteCloser, conf config.BaseConf, needRecord bool) {
+	var wait sync.WaitGroup
+	encryptPipe := func(from io.ReadCloser, to io.WriteCloser) {
+		defer from.Close()
+		defer to.Close()
+		defer wait.Done()
+
+		// we don't care about errors here
+		pipeEncrypt(from, to, conf, needRecord)
+	}
+
+	decryptPipe := func(to io.ReadCloser, from io.WriteCloser) {
+		defer from.Close()
+		defer to.Close()
+		defer wait.Done()
+
+		// we don't care about errors here
+		pipeDecrypt(to, from, conf, needRecord)
+	}
+
+	if needRecord {
+		metric.OpenConnection(conf.Name)
+	}
+	wait.Add(2)
+	go encryptPipe(c1, c2)
+	go decryptPipe(c2, c1)
+	wait.Wait()
+	if needRecord {
+		metric.CloseConnection(conf.Name)
+	}
+	log.Debug("ProxyName [%s], One tunnel stopped", conf.Name)
+	return
+}
+
+func pkgMsg(data []byte) []byte {
+	llen := uint32(len(data))
+	buf := new(bytes.Buffer)
+	binary.Write(buf, binary.BigEndian, llen)
+	buf.Write(data)
+	return buf.Bytes()
+}
+
+func unpkgMsg(data []byte) (int, []byte, []byte) {
+	if len(data) < 4 {
+		return -1, nil, data
+	}
+	llen := int(binary.BigEndian.Uint32(data[0:4]))
+	// no complete
+	if len(data) < llen+4 {
+		return -1, nil, data
+	}
+
+	return 0, data[4 : llen+4], data[llen+4:]
+}
+
+// decrypt msg from reader, then write into writer
+func pipeDecrypt(r io.Reader, w io.Writer, conf config.BaseConf, needRecord bool) (err error) {
+	laes := new(pcrypto.Pcrypto)
+	key := conf.AuthToken
+	if conf.PrivilegeMode {
+		key = conf.PrivilegeToken
+	}
+	if err := laes.Init([]byte(key)); err != nil {
+		log.Warn("ProxyName [%s], Pcrypto Init error: %v", conf.Name, err)
+		return fmt.Errorf("Pcrypto Init error: %v", err)
+	}
+
+	// get []byte from buffer pool
+	buf := pool.GetBuf(5*1024 + 4)
+	defer pool.PutBuf(buf)
+
+	var left, res []byte
+	var cnt int = -1
+
+	// record
+	var flowBytes int64 = 0
+	if needRecord {
+		defer func() {
+			metric.AddFlowOut(conf.Name, flowBytes)
+		}()
+	}
+
+	for {
+		// there may be more than 1 package in variable
+		// and we read more bytes if unpkgMsg returns an error
+		var newBuf []byte
+		if cnt < 0 {
+			n, err := r.Read(buf)
+			if err != nil {
+				return err
+			}
+			newBuf = append(left, buf[0:n]...)
+		} else {
+			newBuf = left
+		}
+		cnt, res, left = unpkgMsg(newBuf)
+		if cnt < 0 {
+			// limit one package length, maximum is 1MB
+			if len(res) > 1024*1024 {
+				log.Warn("ProxyName [%s], package length exceeds the limit")
+				return fmt.Errorf("package length error")
+			}
+			continue
+		}
+
+		// aes
+		if conf.UseEncryption {
+			res, err = laes.Decrypt(res)
+			if err != nil {
+				log.Warn("ProxyName [%s], decrypt error, %v", conf.Name, err)
+				return fmt.Errorf("Decrypt error: %v", err)
+			}
+		}
+		// gzip
+		if conf.UseGzip {
+			res, err = laes.Decompression(res)
+			if err != nil {
+				log.Warn("ProxyName [%s], decompression error, %v", conf.Name, err)
+				return fmt.Errorf("Decompression error: %v", err)
+			}
+		}
+
+		_, err = w.Write(res)
+		if err != nil {
+			return err
+		}
+
+		if needRecord {
+			flowBytes += int64(len(res))
+			if flowBytes >= 1024*1024 {
+				metric.AddFlowOut(conf.Name, flowBytes)
+				flowBytes = 0
+			}
+		}
+	}
+	return nil
+}
+
+// recvive msg from reader, then encrypt msg into writer
+func pipeEncrypt(r io.Reader, w io.Writer, conf config.BaseConf, needRecord bool) (err error) {
+	laes := new(pcrypto.Pcrypto)
+	key := conf.AuthToken
+	if conf.PrivilegeMode {
+		key = conf.PrivilegeToken
+	}
+	if err := laes.Init([]byte(key)); err != nil {
+		log.Warn("ProxyName [%s], Pcrypto Init error: %v", conf.Name, err)
+		return fmt.Errorf("Pcrypto Init error: %v", err)
+	}
+
+	// record
+	var flowBytes int64 = 0
+	if needRecord {
+		defer func() {
+			metric.AddFlowIn(conf.Name, flowBytes)
+		}()
+	}
+
+	// get []byte from buffer pool
+	buf := pool.GetBuf(5*1024 + 4)
+	defer pool.PutBuf(buf)
+
+	for {
+		n, err := r.Read(buf)
+		if err != nil {
+			return err
+		}
+		if needRecord {
+			flowBytes += int64(n)
+			if flowBytes >= 1024*1024 {
+				metric.AddFlowIn(conf.Name, flowBytes)
+				flowBytes = 0
+			}
+		}
+
+		res := buf[0:n]
+		// gzip
+		if conf.UseGzip {
+			res, err = laes.Compression(res)
+			if err != nil {
+				log.Warn("ProxyName [%s], compression error: %v", conf.Name, err)
+				return fmt.Errorf("Compression error: %v", err)
+			}
+		}
+		// aes
+		if conf.UseEncryption {
+			res, err = laes.Encrypt(res)
+			if err != nil {
+				log.Warn("ProxyName [%s], encrypt error: %v", conf.Name, err)
+				return fmt.Errorf("Encrypt error: %v", err)
+			}
+		}
+
+		res = pkgMsg(res)
+		_, err = w.Write(res)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

src/models/msg/udp.go

@@ -0,0 +1,72 @@
+// 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 msg
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"net"
+)
+
+type UdpPacket struct {
+	Content []byte       `json:"-"`
+	Src     *net.UDPAddr `json:"-"`
+	Dst     *net.UDPAddr `json:"-"`
+
+	EncodeContent string `json:"content"`
+	SrcStr        string `json:"src"`
+	DstStr        string `json:"dst"`
+}
+
+func NewUdpPacket(content []byte, src, dst *net.UDPAddr) *UdpPacket {
+	up := &UdpPacket{
+		Src:           src,
+		Dst:           dst,
+		EncodeContent: base64.StdEncoding.EncodeToString(content),
+		SrcStr:        src.String(),
+		DstStr:        dst.String(),
+	}
+	return up
+}
+
+// parse one udp packet struct to bytes
+func (up *UdpPacket) Pack() []byte {
+	b, _ := json.Marshal(up)
+	return b
+}
+
+// parse from bytes to UdpPacket struct
+func (up *UdpPacket) UnPack(packet []byte) error {
+	err := json.Unmarshal(packet, &up)
+	if err != nil {
+		return err
+	}
+
+	up.Content, err = base64.StdEncoding.DecodeString(up.EncodeContent)
+	if err != nil {
+		return err
+	}
+
+	up.Src, err = net.ResolveUDPAddr("udp", up.SrcStr)
+	if err != nil {
+		return err
+	}
+
+	up.Dst, err = net.ResolveUDPAddr("udp", up.DstStr)
+	if err != nil {
+		return err
+	}
+	return nil
+}

src/models/msg/udp_test.go

@@ -0,0 +1,50 @@
+// 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 msg
+
+import (
+	"net"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+var (
+	content string = "udp packet test"
+	src     string = "1.1.1.1:1000"
+	dst     string = "2.2.2.2:2000"
+
+	udpMsg *UdpPacket
+)
+
+func init() {
+	srcAddr, _ := net.ResolveUDPAddr("udp", src)
+	dstAddr, _ := net.ResolveUDPAddr("udp", dst)
+	udpMsg = NewUdpPacket([]byte(content), srcAddr, dstAddr)
+}
+
+func TestPack(t *testing.T) {
+	assert := assert.New(t)
+	msg := udpMsg.Pack()
+	assert.Equal(string(msg), `{"content":"dWRwIHBhY2tldCB0ZXN0","src":"1.1.1.1:1000","dst":"2.2.2.2:2000"}`)
+}
+
+func TestUnpack(t *testing.T) {
+	assert := assert.New(t)
+	udpMsg.UnPack([]byte(`{"content":"dWRwIHBhY2tldCB0ZXN0","src":"1.1.1.1:1000","dst":"2.2.2.2:2000"}`))
+	assert.Equal(content, string(udpMsg.Content))
+	assert.Equal(src, udpMsg.Src.String())
+	assert.Equal(dst, udpMsg.Dst.String())
+}

src/models/server/config.go

@@ -0,0 +1,456 @@
+// 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 server
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"sync"
+
+	ini "github.com/vaughan0/go-ini"
+
+	"github.com/fatedier/frp/src/models/consts"
+	"github.com/fatedier/frp/src/models/metric"
+	"github.com/fatedier/frp/src/utils/log"
+	"github.com/fatedier/frp/src/utils/vhost"
+)
+
+// common config
+var (
+	ConfigFile        string = "./frps.ini"
+	BindAddr          string = "0.0.0.0"
+	BindPort          int64  = 7000
+	VhostHttpPort     int64  = 0 // if VhostHttpPort equals 0, don't listen a public port for http protocol
+	VhostHttpsPort    int64  = 0 // if VhostHttpsPort equals 0, don't listen a public port for https protocol
+	DashboardPort     int64  = 0 // if DashboardPort equals 0, dashboard is not available
+	DashboardUsername string = "admin"
+	DashboardPassword string = "admin"
+	AssetsDir         string = ""
+	LogFile           string = "console"
+	LogWay            string = "console" // console or file
+	LogLevel          string = "info"
+	LogMaxDays        int64  = 3
+	PrivilegeMode     bool   = false
+	PrivilegeToken    string = ""
+	AuthTimeout       int64  = 900
+	SubDomainHost     string = ""
+
+	// if PrivilegeAllowPorts is not nil, tcp proxies which remote port exist in this map can be connected
+	PrivilegeAllowPorts map[int64]struct{}
+	MaxPoolCount        int64 = 100
+	HeartBeatTimeout    int64 = 30
+	UserConnTimeout     int64 = 10
+
+	VhostHttpMuxer    *vhost.HttpMuxer
+	VhostHttpsMuxer   *vhost.HttpsMuxer
+	ProxyServers      map[string]*ProxyServer = make(map[string]*ProxyServer) // all proxy servers info and resources
+	ProxyServersMutex sync.RWMutex
+)
+
+func LoadConf(confFile string) (err error) {
+	err = loadCommonConf(confFile)
+	if err != nil {
+		return err
+	}
+
+	// load all proxy server's configure and initialize
+	// and set ProxyServers map
+	newProxyServers, err := loadProxyConf(confFile)
+	if err != nil {
+		return err
+	}
+	for _, proxyServer := range newProxyServers {
+		proxyServer.Init()
+	}
+	ProxyServersMutex.Lock()
+	ProxyServers = newProxyServers
+	ProxyServersMutex.Unlock()
+	return nil
+}
+
+func loadCommonConf(confFile string) error {
+	var tmpStr string
+	var ok bool
+	conf, err := ini.LoadFile(confFile)
+	if err != nil {
+		return err
+	}
+	// common
+	tmpStr, ok = conf.Get("common", "bind_addr")
+	if ok {
+		BindAddr = tmpStr
+	}
+
+	tmpStr, ok = conf.Get("common", "bind_port")
+	if ok {
+		v, err := strconv.ParseInt(tmpStr, 10, 64)
+		if err == nil {
+			BindPort = v
+		}
+	}
+
+	tmpStr, ok = conf.Get("common", "vhost_http_port")
+	if ok {
+		VhostHttpPort, _ = strconv.ParseInt(tmpStr, 10, 64)
+	} else {
+		VhostHttpPort = 0
+	}
+
+	tmpStr, ok = conf.Get("common", "vhost_https_port")
+	if ok {
+		VhostHttpsPort, _ = strconv.ParseInt(tmpStr, 10, 64)
+	} else {
+		VhostHttpsPort = 0
+	}
+
+	tmpStr, ok = conf.Get("common", "dashboard_port")
+	if ok {
+		DashboardPort, _ = strconv.ParseInt(tmpStr, 10, 64)
+	} else {
+		DashboardPort = 0
+	}
+
+	tmpStr, ok = conf.Get("common", "dashboard_user")
+	if ok {
+		DashboardUsername = tmpStr
+	}
+
+	tmpStr, ok = conf.Get("common", "dashboard_pwd")
+	if ok {
+		DashboardPassword = tmpStr
+	}
+
+	tmpStr, ok = conf.Get("common", "assets_dir")
+	if ok {
+		AssetsDir = tmpStr
+	}
+
+	tmpStr, ok = conf.Get("common", "log_file")
+	if ok {
+		LogFile = tmpStr
+		if LogFile == "console" {
+			LogWay = "console"
+		} else {
+			LogWay = "file"
+		}
+	}
+
+	tmpStr, ok = conf.Get("common", "log_level")
+	if ok {
+		LogLevel = tmpStr
+	}
+
+	tmpStr, ok = conf.Get("common", "log_max_days")
+	if ok {
+		v, err := strconv.ParseInt(tmpStr, 10, 64)
+		if err == nil {
+			LogMaxDays = v
+		}
+	}
+
+	tmpStr, ok = conf.Get("common", "privilege_mode")
+	if ok {
+		if tmpStr == "true" {
+			PrivilegeMode = true
+		}
+	}
+
+	if PrivilegeMode == true {
+		tmpStr, ok = conf.Get("common", "privilege_token")
+		if ok {
+			if tmpStr == "" {
+				return fmt.Errorf("Parse conf error: privilege_token can not be null")
+			}
+			PrivilegeToken = tmpStr
+		} else {
+			return fmt.Errorf("Parse conf error: privilege_token must be set if privilege_mode is enabled")
+		}
+
+		PrivilegeAllowPorts = make(map[int64]struct{})
+		tmpStr, ok = conf.Get("common", "privilege_allow_ports")
+		if ok {
+			// for example: 1000-2000,2001,2002,3000-4000
+			portRanges := strings.Split(tmpStr, ",")
+			for _, portRangeStr := range portRanges {
+				// 1000-2000 or 2001
+				portArray := strings.Split(portRangeStr, "-")
+				// lenght: only 1 or 2 is correct
+				rangeType := len(portArray)
+				if rangeType == 1 {
+					singlePort, err := strconv.ParseInt(portArray[0], 10, 64)
+					if err != nil {
+						return fmt.Errorf("Parse conf error: privilege_allow_ports is incorrect, %v", err)
+					}
+					PrivilegeAllowPorts[singlePort] = struct{}{}
+				} else if rangeType == 2 {
+					min, err := strconv.ParseInt(portArray[0], 10, 64)
+					if err != nil {
+						return fmt.Errorf("Parse conf error: privilege_allow_ports is incorrect, %v", err)
+					}
+					max, err := strconv.ParseInt(portArray[1], 10, 64)
+					if err != nil {
+						return fmt.Errorf("Parse conf error: privilege_allow_ports is incorrect, %v", err)
+					}
+					if max < min {
+						return fmt.Errorf("Parse conf error: privilege_allow_ports range incorrect")
+					}
+					for i := min; i <= max; i++ {
+						PrivilegeAllowPorts[i] = struct{}{}
+					}
+				} else {
+					return fmt.Errorf("Parse conf error: privilege_allow_ports is incorrect")
+				}
+			}
+		}
+	}
+
+	tmpStr, ok = conf.Get("common", "max_pool_count")
+	if ok {
+		v, err := strconv.ParseInt(tmpStr, 10, 64)
+		if err == nil && v >= 0 {
+			MaxPoolCount = v
+		}
+	}
+	tmpStr, ok = conf.Get("common", "authentication_timeout")
+	if ok {
+		v, err := strconv.ParseInt(tmpStr, 10, 64)
+		if err != nil {
+			return fmt.Errorf("Parse conf error: authentication_timeout is incorrect")
+		} else {
+			AuthTimeout = v
+		}
+	}
+	SubDomainHost, ok = conf.Get("common", "subdomain_host")
+	if ok {
+		SubDomainHost = strings.ToLower(strings.TrimSpace(SubDomainHost))
+	}
+
+	tmpStr, ok = conf.Get("common", "heartbeat_timeout")
+	if ok {
+		v, err := strconv.ParseInt(tmpStr, 10, 64)
+		if err != nil {
+			return fmt.Errorf("Parse conf error: heartbeat_timeout is incorrect")
+		} else {
+			HeartBeatTimeout = v
+		}
+	}
+	return nil
+}
+
+func loadProxyConf(confFile string) (proxyServers map[string]*ProxyServer, err error) {
+	var ok bool
+	proxyServers = make(map[string]*ProxyServer)
+	conf, err := ini.LoadFile(confFile)
+	if err != nil {
+		return proxyServers, err
+	}
+	// servers
+	for name, section := range conf {
+		if name != "common" {
+			proxyServer := NewProxyServer()
+			proxyServer.Name = name
+
+			proxyServer.Type, ok = section["type"]
+			if ok {
+				if proxyServer.Type != "tcp" && proxyServer.Type != "http" && proxyServer.Type != "https" && proxyServer.Type != "udp" {
+					return proxyServers, fmt.Errorf("Parse conf error: proxy [%s] type error", proxyServer.Name)
+				}
+			} else {
+				proxyServer.Type = "tcp"
+			}
+
+			proxyServer.AuthToken, ok = section["auth_token"]
+			if !ok {
+				return proxyServers, fmt.Errorf("Parse conf error: proxy [%s] no auth_token found", proxyServer.Name)
+			}
+
+			// for tcp and udp
+			if proxyServer.Type == "tcp" || proxyServer.Type == "udp" {
+				proxyServer.BindAddr, ok = section["bind_addr"]
+				if !ok {
+					proxyServer.BindAddr = "0.0.0.0"
+				}
+
+				portStr, ok := section["listen_port"]
+				if ok {
+					proxyServer.ListenPort, err = strconv.ParseInt(portStr, 10, 64)
+					if err != nil {
+						return proxyServers, fmt.Errorf("Parse conf error: proxy [%s] listen_port error", proxyServer.Name)
+					}
+				} else {
+					return proxyServers, fmt.Errorf("Parse conf error: proxy [%s] listen_port not found", proxyServer.Name)
+				}
+			} else if proxyServer.Type == "http" {
+				// for http
+				proxyServer.ListenPort = VhostHttpPort
+
+				domainStr, ok := section["custom_domains"]
+				if ok {
+					proxyServer.CustomDomains = strings.Split(domainStr, ",")
+					for i, domain := range proxyServer.CustomDomains {
+						domain = strings.ToLower(strings.TrimSpace(domain))
+						// custom domain should not belong to subdomain_host
+						if SubDomainHost != "" && strings.Contains(domain, SubDomainHost) {
+							return proxyServers, fmt.Errorf("Parse conf error: proxy [%s] custom domain should not belong to subdomain_host", proxyServer.Name)
+						}
+						proxyServer.CustomDomains[i] = domain
+					}
+				}
+
+				// subdomain
+				subdomainStr, ok := section["subdomain"]
+				if ok {
+					if strings.Contains(subdomainStr, ".") || strings.Contains(subdomainStr, "*") {
+						return proxyServers, fmt.Errorf("Parse conf error: proxy [%s] '.' and '*' is not supported in subdomain", proxyServer.Name)
+					}
+
+					if SubDomainHost == "" {
+						return proxyServers, fmt.Errorf("Parse conf error: proxy [%s] subdomain is not supported because subdomain_host is empty", proxyServer.Name)
+					}
+					proxyServer.SubDomain = subdomainStr + "." + SubDomainHost
+				}
+
+				if len(proxyServer.CustomDomains) == 0 && proxyServer.SubDomain == "" {
+					return proxyServers, fmt.Errorf("Parse conf error: proxy [%s] custom_domains and subdomain should set at least one of them when type is http", proxyServer.Name)
+				}
+
+				// locations
+				locations, ok := section["locations"]
+				if ok {
+					proxyServer.Locations = strings.Split(locations, ",")
+				} else {
+					proxyServer.Locations = []string{""}
+				}
+			} else if proxyServer.Type == "https" {
+				// for https
+				proxyServer.ListenPort = VhostHttpsPort
+
+				domainStr, ok := section["custom_domains"]
+				if ok {
+					proxyServer.CustomDomains = strings.Split(domainStr, ",")
+					for i, domain := range proxyServer.CustomDomains {
+						domain = strings.ToLower(strings.TrimSpace(domain))
+						if SubDomainHost != "" && strings.Contains(domain, SubDomainHost) {
+							return proxyServers, fmt.Errorf("Parse conf error: proxy [%s] custom domain should not belong to subdomain_host", proxyServer.Name)
+						}
+						proxyServer.CustomDomains[i] = domain
+					}
+				}
+
+				// subdomain
+				subdomainStr, ok := section["subdomain"]
+				if ok {
+					if strings.Contains(subdomainStr, ".") || strings.Contains(subdomainStr, "*") {
+						return proxyServers, fmt.Errorf("Parse conf error: proxy [%s] '.' and '*' is not supported in subdomain", proxyServer.Name)
+					}
+
+					if SubDomainHost == "" {
+						return proxyServers, fmt.Errorf("Parse conf error: proxy [%s] subdomain is not supported because subdomain_host is empty", proxyServer.Name)
+					}
+					proxyServer.SubDomain = subdomainStr + "." + SubDomainHost
+				}
+
+				if len(proxyServer.CustomDomains) == 0 && proxyServer.SubDomain == "" {
+					return proxyServers, fmt.Errorf("Parse conf error: proxy [%s] custom_domains and subdomain should set at least one of them when type is https", proxyServer.Name)
+				}
+			}
+			proxyServers[proxyServer.Name] = proxyServer
+		}
+	}
+
+	// set metric statistics of all proxies
+	for name, p := range proxyServers {
+		metric.SetProxyInfo(name, p.Type, p.BindAddr, p.UseEncryption, p.UseGzip,
+			p.PrivilegeMode, p.CustomDomains, p.Locations, p.ListenPort)
+	}
+	return proxyServers, nil
+}
+
+// the function can only reload proxy configures
+// common section won't be changed
+func ReloadConf(confFile string) (err error) {
+	loadProxyServers, err := loadProxyConf(confFile)
+	if err != nil {
+		return err
+	}
+
+	ProxyServersMutex.Lock()
+	for name, proxyServer := range loadProxyServers {
+		oldProxyServer, ok := ProxyServers[name]
+		if ok {
+			if !oldProxyServer.Compare(proxyServer) {
+				oldProxyServer.Close()
+				proxyServer.Init()
+				ProxyServers[name] = proxyServer
+				log.Info("ProxyName [%s] configure change, restart", name)
+			}
+		} else {
+			proxyServer.Init()
+			ProxyServers[name] = proxyServer
+			log.Info("ProxyName [%s] is new, init it", name)
+		}
+	}
+
+	// proxies created by PrivilegeMode won't be deleted
+	for name, oldProxyServer := range ProxyServers {
+		_, ok := loadProxyServers[name]
+		if !ok {
+			if !oldProxyServer.PrivilegeMode {
+				oldProxyServer.Close()
+				delete(ProxyServers, name)
+				log.Info("ProxyName [%s] deleted, close it", name)
+			} else {
+				log.Info("ProxyName [%s] created by PrivilegeMode, won't be closed", name)
+			}
+		}
+	}
+	ProxyServersMutex.Unlock()
+	return nil
+}
+
+func CreateProxy(s *ProxyServer) error {
+	ProxyServersMutex.Lock()
+	defer ProxyServersMutex.Unlock()
+	oldServer, ok := ProxyServers[s.Name]
+	if ok {
+		if oldServer.Status == consts.Working {
+			return fmt.Errorf("this proxy is already working now")
+		}
+		oldServer.Lock()
+		oldServer.Release()
+		oldServer.Unlock()
+		if oldServer.PrivilegeMode {
+			delete(ProxyServers, s.Name)
+		}
+	}
+	ProxyServers[s.Name] = s
+	metric.SetProxyInfo(s.Name, s.Type, s.BindAddr, s.UseEncryption, s.UseGzip,
+		s.PrivilegeMode, s.CustomDomains, s.Locations, s.ListenPort)
+	return nil
+}
+
+func DeleteProxy(proxyName string) {
+	ProxyServersMutex.Lock()
+	defer ProxyServersMutex.Unlock()
+	delete(ProxyServers, proxyName)
+}
+
+func GetProxyServer(proxyName string) (p *ProxyServer, ok bool) {
+	ProxyServersMutex.RLock()
+	defer ProxyServersMutex.RUnlock()
+	p, ok = ProxyServers[proxyName]
+	return
+}

src/models/server/dashboard.go

@@ -0,0 +1,102 @@
+// 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 server
+
+import (
+	"encoding/base64"
+	"fmt"
+	"net"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/fatedier/frp/src/assets"
+)
+
+var (
+	httpServerReadTimeout  = 10 * time.Second
+	httpServerWriteTimeout = 10 * time.Second
+)
+
+func RunDashboardServer(addr string, port int64) (err error) {
+	// url router
+	mux := http.NewServeMux()
+	// api, see dashboard_api.go
+	mux.HandleFunc("/api/reload", use(apiReload, basicAuth))
+	mux.HandleFunc("/api/proxies", apiProxies)
+
+	// view, see dashboard_view.go
+	mux.Handle("/favicon.ico", http.FileServer(assets.FileSystem))
+	mux.Handle("/static/", http.StripPrefix("/static/", http.FileServer(assets.FileSystem)))
+	mux.HandleFunc("/", use(viewDashboard, basicAuth))
+
+	address := fmt.Sprintf("%s:%d", addr, port)
+	server := &http.Server{
+		Addr:         address,
+		Handler:      mux,
+		ReadTimeout:  httpServerReadTimeout,
+		WriteTimeout: httpServerWriteTimeout,
+	}
+	if address == "" {
+		address = ":http"
+	}
+	ln, err := net.Listen("tcp", address)
+	if err != nil {
+		return err
+	}
+
+	go server.Serve(ln)
+	return
+}
+
+func use(h http.HandlerFunc, middleware ...func(http.HandlerFunc) http.HandlerFunc) http.HandlerFunc {
+	for _, m := range middleware {
+		h = m(h)
+	}
+
+	return h
+}
+
+func basicAuth(h http.HandlerFunc) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+
+		w.Header().Set("WWW-Authenticate", `Basic realm="Restricted"`)
+
+		s := strings.SplitN(r.Header.Get("Authorization"), " ", 2)
+		if len(s) != 2 {
+			http.Error(w, "Not authorized", 401)
+			return
+		}
+
+		b, err := base64.StdEncoding.DecodeString(s[1])
+		if err != nil {
+			http.Error(w, err.Error(), 401)
+			return
+		}
+
+		pair := strings.SplitN(string(b), ":", 2)
+		if len(pair) != 2 {
+			http.Error(w, "Not authorized", 401)
+			return
+		}
+
+		if pair[0] != DashboardUsername || pair[1] != DashboardPassword {
+			http.Error(w, "Not authorized", 401)
+			return
+		}
+
+		h.ServeHTTP(w, r)
+	}
+}

src/models/server/dashboard_api.go

@@ -0,0 +1,67 @@
+// 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 server
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+
+	"github.com/fatedier/frp/src/models/metric"
+	"github.com/fatedier/frp/src/utils/log"
+)
+
+type GeneralResponse struct {
+	Code int64  `json:"code"`
+	Msg  string `json:"msg"`
+}
+
+func apiReload(w http.ResponseWriter, r *http.Request) {
+	var buf []byte
+	res := &GeneralResponse{}
+	defer func() {
+		log.Info("Http response [/api/reload]: %s", string(buf))
+	}()
+
+	log.Info("Http request: [/api/reload]")
+	err := ReloadConf(ConfigFile)
+	if err != nil {
+		res.Code = 2
+		res.Msg = fmt.Sprintf("%v", err)
+		log.Error("frps reload error: %v", err)
+	}
+
+	buf, _ = json.Marshal(res)
+	w.Write(buf)
+}
+
+type ProxiesResponse struct {
+	Code    int64                  `json:"code"`
+	Msg     string                 `json:"msg"`
+	Proxies []*metric.ServerMetric `json:"proxies"`
+}
+
+func apiProxies(w http.ResponseWriter, r *http.Request) {
+	var buf []byte
+	res := &ProxiesResponse{}
+	defer func() {
+		log.Info("Http response [/api/proxies]: code [%d]", res.Code)
+	}()
+
+	log.Info("Http request: [/api/proxies]")
+	res.Proxies = metric.GetAllProxyMetrics()
+	buf, _ = json.Marshal(res)
+	w.Write(buf)
+}

src/models/server/dashboard_view.go

@@ -0,0 +1,40 @@
+// 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 server
+
+import (
+	"html/template"
+	"net/http"
+
+	"github.com/fatedier/frp/src/assets"
+	"github.com/fatedier/frp/src/models/metric"
+	"github.com/fatedier/frp/src/utils/log"
+)
+
+func viewDashboard(w http.ResponseWriter, r *http.Request) {
+	metrics := metric.GetAllProxyMetrics()
+	dashboardTpl, err := assets.ReadFile("index.html")
+	if err != nil {
+		http.Error(w, "get dashboard template file error", http.StatusInternalServerError)
+		return
+	}
+	t := template.Must(template.New("index.html").Delims("<<<", ">>>").Parse(dashboardTpl))
+
+	err = t.Execute(w, metrics)
+	if err != nil {
+		log.Warn("parse template file [index.html] error: %v", err)
+		http.Error(w, "parse template file error", http.StatusInternalServerError)
+	}
+}

src/models/server/server.go

@@ -0,0 +1,484 @@
+// 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 server
+
+import (
+	"fmt"
+	"net"
+	"sync"
+	"time"
+
+	"github.com/fatedier/frp/src/models/config"
+	"github.com/fatedier/frp/src/models/consts"
+	"github.com/fatedier/frp/src/models/metric"
+	"github.com/fatedier/frp/src/models/msg"
+	"github.com/fatedier/frp/src/utils/conn"
+	"github.com/fatedier/frp/src/utils/log"
+	"github.com/fatedier/frp/src/utils/pool"
+)
+
+type Listener interface {
+	Accept() (*conn.Conn, error)
+	Close() error
+}
+
+type ProxyServer struct {
+	config.BaseConf
+	BindAddr      string
+	ListenPort    int64
+	CustomDomains []string
+	Locations     []string
+
+	Status      int64
+	CtlConn     *conn.Conn // control connection with frpc
+	WorkConnUdp *conn.Conn // work connection for udp
+
+	udpConn       *net.UDPConn
+	listeners     []Listener      // accept new connection from remote users
+	ctlMsgChan    chan int64      // every time accept a new user conn, put "1" to the channel
+	workConnChan  chan *conn.Conn // get new work conns from control goroutine
+	udpSenderChan chan *msg.UdpPacket
+	mutex         sync.RWMutex
+	closeChan     chan struct{} // close this channel for notifying other goroutines that the proxy is closed
+}
+
+func NewProxyServer() (p *ProxyServer) {
+	p = &ProxyServer{
+		CustomDomains: make([]string, 0),
+		Locations:     make([]string, 0),
+	}
+	return p
+}
+
+func NewProxyServerFromCtlMsg(req *msg.ControlReq) (p *ProxyServer) {
+	p = &ProxyServer{}
+	p.Name = req.ProxyName
+	p.Type = req.ProxyType
+	p.UseEncryption = req.UseEncryption
+	p.UseGzip = req.UseGzip
+	p.PrivilegeMode = req.PrivilegeMode
+	p.PrivilegeToken = PrivilegeToken
+	p.BindAddr = BindAddr
+	if p.Type == "tcp" || p.Type == "udp" {
+		p.ListenPort = req.RemotePort
+	} else if p.Type == "http" {
+		p.ListenPort = VhostHttpPort
+	} else if p.Type == "https" {
+		p.ListenPort = VhostHttpsPort
+	}
+	p.CustomDomains = req.CustomDomains
+	p.SubDomain = req.SubDomain
+	p.Locations = req.Locations
+	p.HostHeaderRewrite = req.HostHeaderRewrite
+	p.HttpUserName = req.HttpUserName
+	p.HttpPassWord = req.HttpPassWord
+
+	p.Init()
+	return
+}
+
+func (p *ProxyServer) Init() {
+	p.Lock()
+	p.Status = consts.Idle
+	metric.SetStatus(p.Name, p.Status)
+	p.workConnChan = make(chan *conn.Conn, p.PoolCount+10)
+	p.ctlMsgChan = make(chan int64, p.PoolCount+10)
+	p.udpSenderChan = make(chan *msg.UdpPacket, 1024)
+	p.listeners = make([]Listener, 0)
+	p.closeChan = make(chan struct{})
+	p.Unlock()
+}
+
+func (p *ProxyServer) Compare(p2 *ProxyServer) bool {
+	if p.Name != p2.Name || p.AuthToken != p2.AuthToken || p.Type != p2.Type ||
+		p.BindAddr != p2.BindAddr || p.ListenPort != p2.ListenPort || p.HostHeaderRewrite != p2.HostHeaderRewrite {
+		return false
+	}
+	if len(p.CustomDomains) != len(p2.CustomDomains) {
+		return false
+	}
+	for i, _ := range p.CustomDomains {
+		if p.CustomDomains[i] != p2.CustomDomains[i] {
+			return false
+		}
+	}
+
+	if len(p.Locations) != len(p2.Locations) {
+		return false
+	}
+	for i, _ := range p.Locations {
+		if p.Locations[i] != p2.Locations[i] {
+			return false
+		}
+	}
+	return true
+}
+
+func (p *ProxyServer) Lock() {
+	p.mutex.Lock()
+}
+
+func (p *ProxyServer) Unlock() {
+	p.mutex.Unlock()
+}
+
+// start listening for user conns
+func (p *ProxyServer) Start(c *conn.Conn) (err error) {
+	p.CtlConn = c
+	p.Init()
+	if p.Type == "tcp" {
+		l, err := conn.Listen(p.BindAddr, p.ListenPort)
+		if err != nil {
+			return err
+		}
+		p.listeners = append(p.listeners, l)
+	} else if p.Type == "http" {
+		for _, domain := range p.CustomDomains {
+			if len(p.Locations) == 0 {
+				l, err := VhostHttpMuxer.Listen(domain, "", p.HostHeaderRewrite, p.HttpUserName, p.HttpPassWord)
+				if err != nil {
+					return err
+				}
+				log.Info("ProxyName [%s], type http listen for host [%s] location [%s]", p.Name, domain, "")
+				p.listeners = append(p.listeners, l)
+			} else {
+				for _, location := range p.Locations {
+					l, err := VhostHttpMuxer.Listen(domain, location, p.HostHeaderRewrite, p.HttpUserName, p.HttpPassWord)
+					if err != nil {
+						return err
+					}
+					log.Info("ProxyName [%s], type http listen for host [%s] location [%s]", p.Name, domain, location)
+					p.listeners = append(p.listeners, l)
+				}
+			}
+		}
+		if p.SubDomain != "" {
+			if len(p.Locations) == 0 {
+				l, err := VhostHttpMuxer.Listen(p.SubDomain, "", p.HostHeaderRewrite, p.HttpUserName, p.HttpPassWord)
+				if err != nil {
+					return err
+				}
+				log.Info("ProxyName [%s], type http listen for host [%s] location [%s]", p.Name, p.SubDomain, "")
+				p.listeners = append(p.listeners, l)
+			} else {
+				for _, location := range p.Locations {
+					l, err := VhostHttpMuxer.Listen(p.SubDomain, location, p.HostHeaderRewrite, p.HttpUserName, p.HttpPassWord)
+					if err != nil {
+						return err
+					}
+					log.Info("ProxyName [%s], type http listen for host [%s] location [%s]", p.Name, p.SubDomain, location)
+					p.listeners = append(p.listeners, l)
+				}
+			}
+		}
+	} else if p.Type == "https" {
+		for _, domain := range p.CustomDomains {
+			l, err := VhostHttpsMuxer.Listen(domain, "", p.HostHeaderRewrite, p.HttpUserName, p.HttpPassWord)
+			if err != nil {
+				return err
+			}
+			log.Info("ProxyName [%s], type https listen for host [%s]", p.Name, domain)
+			p.listeners = append(p.listeners, l)
+		}
+		if p.SubDomain != "" {
+			l, err := VhostHttpsMuxer.Listen(p.SubDomain, "", p.HostHeaderRewrite, p.HttpUserName, p.HttpPassWord)
+			if err != nil {
+				return err
+			}
+			log.Info("ProxyName [%s], type https listen for host [%s]", p.Name, p.SubDomain)
+			p.listeners = append(p.listeners, l)
+		}
+	}
+
+	p.Lock()
+	p.Status = consts.Working
+	p.Unlock()
+	metric.SetStatus(p.Name, p.Status)
+
+	if p.Type == "udp" {
+		// udp is special
+		p.udpConn, err = conn.ListenUDP(p.BindAddr, p.ListenPort)
+		if err != nil {
+			log.Warn("ProxyName [%s], listen udp port error: %v", p.Name, err)
+			return err
+		}
+		go func() {
+			for {
+				buf := pool.GetBuf(2048)
+				n, remoteAddr, err := p.udpConn.ReadFromUDP(buf)
+				if err != nil {
+					log.Info("ProxyName [%s], udp listener is closed", p.Name)
+					return
+				}
+				localAddr, _ := net.ResolveUDPAddr("udp", p.udpConn.LocalAddr().String())
+				udpPacket := msg.NewUdpPacket(buf[0:n], remoteAddr, localAddr)
+				select {
+				case p.udpSenderChan <- udpPacket:
+				default:
+					log.Warn("ProxyName [%s], udp sender channel is full", p.Name)
+				}
+				pool.PutBuf(buf)
+			}
+		}()
+	} else {
+		// create connection pool if needed
+		if p.PoolCount > 0 {
+			go p.connectionPoolManager(p.closeChan)
+		}
+
+		// start a goroutine for every listener to accept user connection
+		for _, listener := range p.listeners {
+			go func(l Listener) {
+				for {
+					// block
+					// if listener is closed, err returned
+					c, err := l.Accept()
+					if err != nil {
+						log.Info("ProxyName [%s], listener is closed", p.Name)
+						return
+					}
+					log.Debug("ProxyName [%s], get one new user conn [%s]", p.Name, c.GetRemoteAddr())
+
+					if p.Status != consts.Working {
+						log.Debug("ProxyName [%s] is not working, new user conn close", p.Name)
+						c.Close()
+						return
+					}
+
+					go func(userConn *conn.Conn) {
+						workConn, err := p.getWorkConn()
+						if err != nil {
+							return
+						}
+
+						// message will be transferred to another without modifying
+						// l means local, r means remote
+						log.Debug("Join two connections, (l[%s] r[%s]) (l[%s] r[%s])", workConn.GetLocalAddr(), workConn.GetRemoteAddr(),
+							userConn.GetLocalAddr(), userConn.GetRemoteAddr())
+
+						needRecord := true
+						go msg.JoinMore(userConn, workConn, p.BaseConf, needRecord)
+					}(c)
+				}
+			}(listener)
+		}
+	}
+	return nil
+}
+
+func (p *ProxyServer) Close() {
+	p.Lock()
+	defer p.Unlock()
+
+	oldStatus := p.Status
+	p.Release()
+
+	// if the proxy created by PrivilegeMode, delete it when closed
+	if p.PrivilegeMode && oldStatus == consts.Working {
+		// NOTE: this will take the global ProxyServerMap's lock
+		// if we only want to release resources, use Release() instead
+		DeleteProxy(p.Name)
+	}
+}
+
+func (p *ProxyServer) Release() {
+	if p.Status != consts.Closed {
+		p.Status = consts.Closed
+		for _, l := range p.listeners {
+			if l != nil {
+				l.Close()
+			}
+		}
+		if p.ctlMsgChan != nil {
+			close(p.ctlMsgChan)
+			p.ctlMsgChan = nil
+		}
+		if p.workConnChan != nil {
+			close(p.workConnChan)
+			p.workConnChan = nil
+		}
+		if p.udpSenderChan != nil {
+			close(p.udpSenderChan)
+			p.udpSenderChan = nil
+		}
+		if p.closeChan != nil {
+			close(p.closeChan)
+			p.closeChan = nil
+		}
+		if p.CtlConn != nil {
+			p.CtlConn.Close()
+		}
+		if p.WorkConnUdp != nil {
+			p.WorkConnUdp.Close()
+		}
+		if p.udpConn != nil {
+			p.udpConn.Close()
+			p.udpConn = nil
+		}
+	}
+	metric.SetStatus(p.Name, p.Status)
+}
+
+func (p *ProxyServer) WaitUserConn() (closeFlag bool) {
+	closeFlag = false
+
+	_, ok := <-p.ctlMsgChan
+	if !ok {
+		closeFlag = true
+	}
+	return
+}
+
+func (p *ProxyServer) RegisterNewWorkConn(c *conn.Conn) {
+	select {
+	case p.workConnChan <- c:
+	default:
+		log.Debug("ProxyName [%s], workConnChan is full, so close this work connection", p.Name)
+		c.Close()
+	}
+}
+
+// create a tcp connection for forwarding udp packages
+func (p *ProxyServer) RegisterNewWorkConnUdp(c *conn.Conn) {
+	if p.WorkConnUdp != nil && !p.WorkConnUdp.IsClosed() {
+		p.WorkConnUdp.Close()
+	}
+	p.WorkConnUdp = c
+
+	// read
+	go func() {
+		var (
+			buf string
+			err error
+		)
+		for {
+			buf, err = c.ReadLine()
+			if err != nil {
+				log.Warn("ProxyName [%s], work connection for udp closed", p.Name)
+				return
+			}
+			udpPacket := &msg.UdpPacket{}
+			err = udpPacket.UnPack([]byte(buf))
+			if err != nil {
+				log.Warn("ProxyName [%s], unpack udp packet error: %v", p.Name, err)
+				continue
+			}
+
+			// send to user
+			_, err = p.udpConn.WriteToUDP(udpPacket.Content, udpPacket.Dst)
+			if err != nil {
+				continue
+			}
+		}
+	}()
+
+	// write
+	go func() {
+		for {
+			udpPacket, ok := <-p.udpSenderChan
+			if !ok {
+				return
+			}
+			err := c.WriteString(string(udpPacket.Pack()) + "\n")
+			if err != nil {
+				log.Debug("ProxyName [%s], write to work connection for udp error: %v", p.Name, err)
+				return
+			}
+		}
+	}()
+}
+
+// When frps get one user connection, we get one work connection from the pool and return it.
+// If no workConn available in the pool, send message to frpc to get one or more
+// and wait until it is available.
+// return an error if wait timeout
+func (p *ProxyServer) getWorkConn() (workConn *conn.Conn, err error) {
+	var ok bool
+	// get a work connection from the pool
+	for {
+		select {
+		case workConn, ok = <-p.workConnChan:
+			if !ok {
+				err = fmt.Errorf("ProxyName [%s], no work connections available, control is closing", p.Name)
+				return
+			}
+			log.Debug("ProxyName [%s], get work connection from pool", p.Name)
+		default:
+			// no work connections available in the poll, send message to frpc to get more
+			p.ctlMsgChan <- 1
+
+			select {
+			case workConn, ok = <-p.workConnChan:
+				if !ok {
+					err = fmt.Errorf("ProxyName [%s], no work connections available, control is closing", p.Name)
+					return
+				}
+
+			case <-time.After(time.Duration(UserConnTimeout) * time.Second):
+				log.Warn("ProxyName [%s], timeout trying to get work connection", p.Name)
+				err = fmt.Errorf("ProxyName [%s], timeout trying to get work connection", p.Name)
+				return
+			}
+		}
+
+		// if connection pool is not used, we don't check the status
+		// function CheckClosed will consume at least 1 millisecond if the connection isn't closed
+		if p.PoolCount == 0 || !workConn.CheckClosed() {
+			break
+		} else {
+			log.Warn("ProxyName [%s], connection got from pool, but it's already closed", p.Name)
+		}
+	}
+	return
+}
+
+func (p *ProxyServer) connectionPoolManager(closeCh <-chan struct{}) {
+	defer func() {
+		if r := recover(); r != nil {
+			log.Warn("ProxyName [%s], connectionPoolManager panic %v", p.Name, r)
+		}
+	}()
+
+	for {
+		// check if we need more work connections and send messages to frpc to get more
+		time.Sleep(time.Duration(2) * time.Second)
+		select {
+		// if the channel closed, it means the proxy is closed, so just return
+		case <-closeCh:
+			log.Info("ProxyName [%s], connectionPoolManager exit", p.Name)
+			return
+		default:
+			curWorkConnNum := int64(len(p.workConnChan))
+			diff := p.PoolCount - curWorkConnNum
+			if diff > 0 {
+				if diff < p.PoolCount/5 {
+					diff = p.PoolCount*4/5 + 1
+				} else if diff < p.PoolCount/2 {
+					diff = p.PoolCount/4 + 1
+				} else if diff < p.PoolCount*4/5 {
+					diff = p.PoolCount/5 + 1
+				} else {
+					diff = p.PoolCount/10 + 1
+				}
+				if diff+curWorkConnNum > p.PoolCount {
+					diff = p.PoolCount - curWorkConnNum
+				}
+				for i := 0; i < int(diff); i++ {
+					p.ctlMsgChan <- 1
+				}
+			}
+		}
+	}
+}

src/utils/broadcast/broadcast.go

@@ -1,3 +1,17 @@
+// 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 broadcast
 
 type Broadcast struct {

src/utils/broadcast/broadcast_test.go

@@ -1,3 +1,17 @@
+// 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 broadcast
 
 import (
@@ -15,7 +29,7 @@ var (
 func TestBroadcast(t *testing.T) {
 	b := NewBroadcast()
 	if b == nil {
-		t.Errorf("New Broadcast error, nil return")
+		t.Fatalf("New Broadcast error, nil return")
 	}
 	defer b.Close()
 
@@ -31,7 +45,7 @@ func TestBroadcast(t *testing.T) {
 
 	wait.Wait()
 	if succNum != totalNum {
-		t.Errorf("TotalNum %d, FailNum(timeout) %d", totalNum, totalNum-succNum)
+		t.Fatalf("TotalNum %d, FailNum(timeout) %d", totalNum, totalNum-succNum)
 	}
 }
 

src/utils/conn/conn.go

@@ -0,0 +1,314 @@
+// 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 conn
+
+import (
+	"bufio"
+	"bytes"
+	"encoding/base64"
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+	"net/url"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/fatedier/frp/src/utils/pool"
+)
+
+type Listener struct {
+	addr      net.Addr
+	l         *net.TCPListener
+	accept    chan *Conn
+	closeFlag bool
+}
+
+func Listen(bindAddr string, bindPort int64) (l *Listener, err error) {
+	tcpAddr, err := net.ResolveTCPAddr("tcp", fmt.Sprintf("%s:%d", bindAddr, bindPort))
+	if err != nil {
+		return l, err
+	}
+	listener, err := net.ListenTCP("tcp", tcpAddr)
+	if err != nil {
+		return l, err
+	}
+
+	l = &Listener{
+		addr:      listener.Addr(),
+		l:         listener,
+		accept:    make(chan *Conn),
+		closeFlag: false,
+	}
+
+	go func() {
+		for {
+			conn, err := l.l.AcceptTCP()
+			if err != nil {
+				if l.closeFlag {
+					return
+				}
+				continue
+			}
+
+			c := NewConn(conn)
+			l.accept <- c
+		}
+	}()
+	return l, err
+}
+
+// wait util get one new connection or listener is closed
+// if listener is closed, err returned
+func (l *Listener) Accept() (*Conn, error) {
+	conn, ok := <-l.accept
+	if !ok {
+		return conn, fmt.Errorf("channel close")
+	}
+	return conn, nil
+}
+
+func (l *Listener) Close() error {
+	if l.l != nil && l.closeFlag == false {
+		l.closeFlag = true
+		l.l.Close()
+		close(l.accept)
+	}
+	return nil
+}
+
+// wrap for TCPConn
+type Conn struct {
+	TcpConn   net.Conn
+	Reader    *bufio.Reader
+	buffer    *bytes.Buffer
+	closeFlag bool
+
+	mutex sync.RWMutex
+}
+
+func NewConn(conn net.Conn) (c *Conn) {
+	c = &Conn{
+		TcpConn:   conn,
+		buffer:    nil,
+		closeFlag: false,
+	}
+	c.Reader = bufio.NewReader(c.TcpConn)
+	return
+}
+
+func ConnectServer(addr string) (c *Conn, err error) {
+	servertAddr, err := net.ResolveTCPAddr("tcp", addr)
+	if err != nil {
+		return
+	}
+	conn, err := net.DialTCP("tcp", nil, servertAddr)
+	if err != nil {
+		return
+	}
+	c = NewConn(conn)
+	return c, nil
+}
+
+func ConnectServerByHttpProxy(httpProxy string, serverAddr string) (c *Conn, err error) {
+	var proxyUrl *url.URL
+	if proxyUrl, err = url.Parse(httpProxy); err != nil {
+		return
+	}
+
+	var proxyAuth string
+	if proxyUrl.User != nil {
+		proxyAuth = "Basic " + base64.StdEncoding.EncodeToString([]byte(proxyUrl.User.String()))
+	}
+
+	if proxyUrl.Scheme != "http" {
+		err = fmt.Errorf("Proxy URL scheme must be http, not [%s]", proxyUrl.Scheme)
+		return
+	}
+
+	if c, err = ConnectServer(proxyUrl.Host); err != nil {
+		return
+	}
+
+	req, err := http.NewRequest("CONNECT", "http://"+serverAddr, nil)
+	if err != nil {
+		return
+	}
+	if proxyAuth != "" {
+		req.Header.Set("Proxy-Authorization", proxyAuth)
+	}
+	req.Header.Set("User-Agent", "Mozilla/5.0")
+	req.Write(c.TcpConn)
+
+	resp, err := http.ReadResponse(bufio.NewReader(c), req)
+	if err != nil {
+		return
+	}
+	resp.Body.Close()
+	if resp.StatusCode != 200 {
+		err = fmt.Errorf("ConnectServer using proxy error, StatusCode [%d]", resp.StatusCode)
+		return
+	}
+
+	return
+}
+
+// if the tcpConn is different with c.TcpConn
+// you should call c.Close() first
+func (c *Conn) SetTcpConn(tcpConn net.Conn) {
+	c.mutex.Lock()
+	defer c.mutex.Unlock()
+	c.TcpConn = tcpConn
+	c.closeFlag = false
+	c.Reader = bufio.NewReader(c.TcpConn)
+}
+
+func (c *Conn) GetRemoteAddr() (addr string) {
+	return c.TcpConn.RemoteAddr().String()
+}
+
+func (c *Conn) GetLocalAddr() (addr string) {
+	return c.TcpConn.LocalAddr().String()
+}
+
+func (c *Conn) Read(p []byte) (n int, err error) {
+	c.mutex.RLock()
+	if c.buffer == nil {
+		c.mutex.RUnlock()
+		return c.Reader.Read(p)
+	}
+	c.mutex.RUnlock()
+
+	n, err = c.buffer.Read(p)
+	if err == io.EOF {
+		c.mutex.Lock()
+		c.buffer = nil
+		c.mutex.Unlock()
+		var n2 int
+		n2, err = c.Reader.Read(p[n:])
+
+		n += n2
+	}
+	return
+}
+
+func (c *Conn) ReadLine() (buff string, err error) {
+	buff, err = c.Reader.ReadString('\n')
+	if err != nil {
+		// wsarecv error in windows means connection closed?
+		if err == io.EOF || strings.Contains(err.Error(), "wsarecv") {
+			c.mutex.Lock()
+			c.closeFlag = true
+			c.mutex.Unlock()
+		}
+	}
+	return buff, err
+}
+
+func (c *Conn) Write(content []byte) (n int, err error) {
+	n, err = c.TcpConn.Write(content)
+	return
+}
+
+func (c *Conn) WriteString(content string) (err error) {
+	_, err = c.TcpConn.Write([]byte(content))
+	return err
+}
+
+func (c *Conn) AppendReaderBuffer(content []byte) {
+	c.mutex.Lock()
+	defer c.mutex.Unlock()
+
+	if c.buffer == nil {
+		c.buffer = bytes.NewBuffer(make([]byte, 0, 2048))
+	}
+	c.buffer.Write(content)
+}
+
+func (c *Conn) SetDeadline(t time.Time) error {
+	return c.TcpConn.SetDeadline(t)
+}
+
+func (c *Conn) SetReadDeadline(t time.Time) error {
+	return c.TcpConn.SetReadDeadline(t)
+}
+
+func (c *Conn) Close() error {
+	c.mutex.Lock()
+	defer c.mutex.Unlock()
+	if c.TcpConn != nil && c.closeFlag == false {
+		c.closeFlag = true
+		c.TcpConn.Close()
+	}
+	return nil
+}
+
+func (c *Conn) IsClosed() (closeFlag bool) {
+	c.mutex.RLock()
+	defer c.mutex.RUnlock()
+	closeFlag = c.closeFlag
+	return
+}
+
+// when you call this function, you should make sure that
+// no bytes were read before
+func (c *Conn) CheckClosed() bool {
+	c.mutex.RLock()
+	if c.closeFlag {
+		c.mutex.RUnlock()
+		return true
+	}
+	c.mutex.RUnlock()
+
+	tmp := pool.GetBuf(2048)
+	defer pool.PutBuf(tmp)
+	err := c.TcpConn.SetReadDeadline(time.Now().Add(time.Millisecond))
+	if err != nil {
+		c.Close()
+		return true
+	}
+
+	n, err := c.TcpConn.Read(tmp)
+	if err == io.EOF {
+		return true
+	}
+
+	var tmp2 []byte = make([]byte, 1)
+	err = c.TcpConn.SetReadDeadline(time.Now().Add(time.Millisecond))
+	if err != nil {
+		c.Close()
+		return true
+	}
+
+	n2, err := c.TcpConn.Read(tmp2)
+	if err == io.EOF {
+		return true
+	}
+
+	err = c.TcpConn.SetReadDeadline(time.Time{})
+	if err != nil {
+		c.Close()
+		return true
+	}
+
+	if n > 0 {
+		c.AppendReaderBuffer(tmp[:n])
+	}
+	if n2 > 0 {
+		c.AppendReaderBuffer(tmp2[:n2])
+	}
+	return false
+}

src/utils/conn/udp_conn.go

@@ -0,0 +1,29 @@
+// 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 conn
+
+import (
+	"fmt"
+	"net"
+)
+
+func ListenUDP(bindAddr string, bindPort int64) (conn *net.UDPConn, err error) {
+	udpAddr, err := net.ResolveUDPAddr("udp", fmt.Sprintf("%s:%d", bindAddr, bindPort))
+	if err != nil {
+		return conn, err
+	}
+	conn, err = net.ListenUDP("udp", udpAddr)
+	return
+}

src/utils/log/log.go

@@ -0,0 +1,78 @@
+// 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 log
+
+import (
+	"fmt"
+	"github.com/astaxie/beego/logs"
+)
+
+var Log *logs.BeeLogger
+
+func init() {
+	Log = logs.NewLogger(1000)
+	Log.EnableFuncCallDepth(true)
+	Log.SetLogFuncCallDepth(Log.GetLogFuncCallDepth() + 1)
+}
+
+func InitLog(logWay string, logFile string, logLevel string, maxdays int64) {
+	SetLogFile(logWay, logFile, maxdays)
+	SetLogLevel(logLevel)
+}
+
+// logWay: file or console
+func SetLogFile(logWay string, logFile string, maxdays int64) {
+	if logWay == "console" {
+		Log.SetLogger("console", "")
+	} else {
+		params := fmt.Sprintf(`{"filename": "%s", "maxdays": %d}`, logFile, maxdays)
+		Log.SetLogger("file", params)
+	}
+}
+
+// value: error, warning, info, debug
+func SetLogLevel(logLevel string) {
+	level := 4 // warning
+	switch logLevel {
+	case "error":
+		level = 3
+	case "warn":
+		level = 4
+	case "info":
+		level = 6
+	case "debug":
+		level = 7
+	default:
+		level = 4
+	}
+	Log.SetLevel(level)
+}
+
+// wrap log
+func Error(format string, v ...interface{}) {
+	Log.Error(format, v...)
+}
+
+func Warn(format string, v ...interface{}) {
+	Log.Warn(format, v...)
+}
+
+func Info(format string, v ...interface{}) {
+	Log.Info(format, v...)
+}
+
+func Debug(format string, v ...interface{}) {
+	Log.Debug(format, v...)
+}

src/utils/pcrypto/pcrypto.go

@@ -0,0 +1,139 @@
+// 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 pcrypto
+
+import (
+	"bytes"
+	"compress/gzip"
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/md5"
+	"crypto/rand"
+	"encoding/hex"
+	"fmt"
+	"io"
+	"io/ioutil"
+)
+
+type Pcrypto struct {
+	pkey []byte
+	paes cipher.Block
+}
+
+func (pc *Pcrypto) Init(key []byte) error {
+	var err error
+	pc.pkey = pkKeyPadding(key)
+	pc.paes, err = aes.NewCipher(pc.pkey)
+	return err
+}
+
+func (pc *Pcrypto) Encrypt(src []byte) ([]byte, error) {
+	// aes
+	src = pKCS5Padding(src, aes.BlockSize)
+	ciphertext := make([]byte, aes.BlockSize+len(src))
+
+	// The IV needs to be unique, but not secure. Therefore it's common to
+	// include it at the beginning of the ciphertext.
+	iv := ciphertext[:aes.BlockSize]
+	if _, err := io.ReadFull(rand.Reader, iv); err != nil {
+		return nil, err
+	}
+	blockMode := cipher.NewCBCEncrypter(pc.paes, iv)
+	blockMode.CryptBlocks(ciphertext[aes.BlockSize:], src)
+	return ciphertext, nil
+}
+
+func (pc *Pcrypto) Decrypt(str []byte) ([]byte, error) {
+	// aes
+	ciphertext, err := hex.DecodeString(fmt.Sprintf("%x", str))
+	if err != nil {
+		return nil, err
+	}
+
+	if len(ciphertext) < aes.BlockSize {
+		return nil, fmt.Errorf("ciphertext too short")
+	}
+	iv := ciphertext[:aes.BlockSize]
+	ciphertext = ciphertext[aes.BlockSize:]
+
+	if len(ciphertext)%aes.BlockSize != 0 {
+		return nil, fmt.Errorf("crypto/cipher: ciphertext is not a multiple of the block size")
+	}
+
+	blockMode := cipher.NewCBCDecrypter(pc.paes, iv)
+	blockMode.CryptBlocks(ciphertext, ciphertext)
+	return pKCS5UnPadding(ciphertext), nil
+}
+
+func (pc *Pcrypto) Compression(src []byte) ([]byte, error) {
+	var zbuf bytes.Buffer
+	zwr, err := gzip.NewWriterLevel(&zbuf, gzip.DefaultCompression)
+	if err != nil {
+		return nil, err
+	}
+	defer zwr.Close()
+	zwr.Write(src)
+	zwr.Flush()
+	return zbuf.Bytes(), nil
+}
+
+func (pc *Pcrypto) Decompression(src []byte) ([]byte, error) {
+	zbuf := bytes.NewBuffer(src)
+	zrd, err := gzip.NewReader(zbuf)
+	if err != nil {
+		return nil, err
+	}
+	defer zrd.Close()
+	str, _ := ioutil.ReadAll(zrd)
+	return str, nil
+}
+
+func pkKeyPadding(key []byte) []byte {
+	l := len(key)
+	if l == 16 || l == 24 || l == 32 {
+		return key
+	}
+	if l < 16 {
+		return append(key, bytes.Repeat([]byte{byte(0)}, 16-l)...)
+	} else if l < 24 {
+		return append(key, bytes.Repeat([]byte{byte(0)}, 24-l)...)
+	} else if l < 32 {
+		return append(key, bytes.Repeat([]byte{byte(0)}, 32-l)...)
+	} else {
+		md5Ctx := md5.New()
+		md5Ctx.Write(key)
+		md5Str := md5Ctx.Sum(nil)
+		return []byte(hex.EncodeToString(md5Str))
+	}
+}
+
+func pKCS5Padding(ciphertext []byte, blockSize int) []byte {
+	padding := blockSize - len(ciphertext)%blockSize
+	padtext := bytes.Repeat([]byte{byte(padding)}, padding)
+	return append(ciphertext, padtext...)
+}
+
+func pKCS5UnPadding(origData []byte) []byte {
+	length := len(origData)
+	unpadding := int(origData[length-1])
+	return origData[:(length - unpadding)]
+}
+
+func GetAuthKey(str string) (authKey string) {
+	md5Ctx := md5.New()
+	md5Ctx.Write([]byte(str))
+	md5Str := md5Ctx.Sum(nil)
+	return hex.EncodeToString(md5Str)
+}

src/utils/pcrypto/pcrypto_test.go

@@ -0,0 +1,77 @@
+// 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 pcrypto
+
+import (
+	"testing"
+)
+
+var (
+	pp *Pcrypto
+)
+
+func init() {
+	pp = &Pcrypto{}
+	pp.Init([]byte("12234567890123451223456789012345321:wq"))
+}
+
+func TestEncrypt(t *testing.T) {
+	testStr := "Test Encrypt!"
+	res, err := pp.Encrypt([]byte(testStr))
+	if err != nil {
+		t.Fatalf("encrypt error: %v", err)
+	}
+
+	res, err = pp.Decrypt([]byte(res))
+	if err != nil {
+		t.Fatalf("decrypt error: %v", err)
+	}
+
+	if string(res) != testStr {
+		t.Fatalf("test encrypt error, from [%s] to [%s]", testStr, string(res))
+	}
+}
+
+func TestCompression(t *testing.T) {
+	testStr := "Test Compression!"
+	res, err := pp.Compression([]byte(testStr))
+	if err != nil {
+		t.Fatalf("compression error: %v", err)
+	}
+
+	res, err = pp.Decompression(res)
+	if err != nil {
+		t.Fatalf("decompression error: %v", err)
+	}
+
+	if string(res) != testStr {
+		t.Fatalf("test compression error, from [%s] to [%s]", testStr, string(res))
+	}
+}
+
+func BenchmarkEncrypt(b *testing.B) {
+	testStr := "Test Encrypt!"
+	for i := 0; i < b.N; i++ {
+		pp.Encrypt([]byte(testStr))
+	}
+}
+
+func BenchmarkDecrypt(b *testing.B) {
+	testStr := "Test Encrypt!"
+	res, _ := pp.Encrypt([]byte(testStr))
+	for i := 0; i < b.N; i++ {
+		pp.Decrypt([]byte(res))
+	}
+}

src/utils/pool/pool.go

@@ -0,0 +1,58 @@
+// 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 pool
+
+import "sync"
+
+var (
+	bufPool5k sync.Pool
+	bufPool2k sync.Pool
+	bufPool1k sync.Pool
+	bufPool   sync.Pool
+)
+
+func GetBuf(size int) []byte {
+	var x interface{}
+	if size >= 5*1024 {
+		x = bufPool5k.Get()
+	} else if size >= 2*1024 {
+		x = bufPool2k.Get()
+	} else if size >= 1*1024 {
+		x = bufPool1k.Get()
+	} else {
+		x = bufPool.Get()
+	}
+	if x == nil {
+		return make([]byte, size)
+	}
+	buf := x.([]byte)
+	if cap(buf) < size {
+		return make([]byte, size)
+	}
+	return buf[:size]
+}
+
+func PutBuf(buf []byte) {
+	size := cap(buf)
+	if size >= 5*1024 {
+		bufPool5k.Put(buf)
+	} else if size >= 2*1024 {
+		bufPool2k.Put(buf)
+	} else if size >= 1*1024 {
+		bufPool1k.Put(buf)
+	} else {
+		bufPool.Put(buf)
+	}
+}

src/utils/version/version.go

@@ -0,0 +1,58 @@
+// 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 version
+
+import (
+	"strconv"
+	"strings"
+)
+
+var version string = "0.9.3"
+
+func Full() string {
+	return version
+}
+
+func Proto(v string) int64 {
+	arr := strings.Split(v, ".")
+	if len(arr) < 2 {
+		return 0
+	}
+	res, _ := strconv.ParseInt(arr[0], 10, 64)
+	return res
+}
+
+func Major(v string) int64 {
+	arr := strings.Split(v, ".")
+	if len(arr) < 2 {
+		return 0
+	}
+	res, _ := strconv.ParseInt(arr[1], 10, 64)
+	return res
+}
+
+func Minor(v string) int64 {
+	arr := strings.Split(v, ".")
+	if len(arr) < 2 {
+		return 0
+	}
+	res, _ := strconv.ParseInt(arr[2], 10, 64)
+	return res
+}
+
+// add every case there if server will not accept client's protocol and return false
+func Compat(client string, server string) bool {
+	return true
+}

src/utils/version/version_test.go

@@ -0,0 +1,56 @@
+// 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 version
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"testing"
+)
+
+func TestFull(t *testing.T) {
+	version := Full()
+	arr := strings.Split(version, ".")
+	if len(arr) != 3 {
+		t.Fatalf("Version string error: %s", version)
+	}
+
+	proto, err := strconv.ParseInt(arr[0], 10, 64)
+	if err != nil || proto < 0 {
+		t.Fatalf("Version proto error")
+	}
+
+	major, err := strconv.ParseInt(arr[1], 10, 64)
+	if err != nil || major < 0 {
+		t.Fatalf("Version major error")
+	}
+
+	minor, err := strconv.ParseInt(arr[2], 10, 64)
+	if err != nil || minor < 0 {
+		t.Fatalf("Version minor error")
+	}
+}
+
+func TestVersion(t *testing.T) {
+	proto := Proto(Full())
+	major := Major(Full())
+	minor := Minor(Full())
+	parseVerion := fmt.Sprintf("%d.%d.%d", proto, major, minor)
+	version := Full()
+	if parseVerion != version {
+		t.Fatalf("Get version incorrect, version [%s], parseVerion [%s]", version, parseVerion)
+	}
+}

src/utils/vhost/http.go

@@ -0,0 +1,217 @@
+// 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 vhost
+
+import (
+	"bufio"
+	"bytes"
+	"encoding/base64"
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"github.com/fatedier/frp/src/utils/conn"
+	"github.com/fatedier/frp/src/utils/pool"
+)
+
+type HttpMuxer struct {
+	*VhostMuxer
+}
+
+func GetHttpRequestInfo(c *conn.Conn) (_ net.Conn, _ map[string]string, err error) {
+	reqInfoMap := make(map[string]string, 0)
+	sc, rd := newShareConn(c.TcpConn)
+
+	request, err := http.ReadRequest(bufio.NewReader(rd))
+	if err != nil {
+		return sc, reqInfoMap, err
+	}
+	// hostName
+	tmpArr := strings.Split(request.Host, ":")
+	reqInfoMap["Host"] = tmpArr[0]
+	reqInfoMap["Path"] = request.URL.Path
+	reqInfoMap["Scheme"] = request.URL.Scheme
+
+	// Authorization
+	authStr := request.Header.Get("Authorization")
+	if authStr != "" {
+		reqInfoMap["Authorization"] = authStr
+	}
+	request.Body.Close()
+	return sc, reqInfoMap, nil
+}
+
+func NewHttpMuxer(listener *conn.Listener, timeout time.Duration) (*HttpMuxer, error) {
+	mux, err := NewVhostMuxer(listener, GetHttpRequestInfo, HttpAuthFunc, HttpHostNameRewrite, timeout)
+	return &HttpMuxer{mux}, err
+}
+
+func HttpHostNameRewrite(c *conn.Conn, rewriteHost string) (_ net.Conn, err error) {
+	sc, rd := newShareConn(c.TcpConn)
+	var buff []byte
+	if buff, err = hostNameRewrite(rd, rewriteHost); err != nil {
+		return sc, err
+	}
+	err = sc.WriteBuff(buff)
+	return sc, err
+}
+
+func hostNameRewrite(request io.Reader, rewriteHost string) (_ []byte, err error) {
+	buf := pool.GetBuf(1024)
+	defer pool.PutBuf(buf)
+
+	request.Read(buf)
+	retBuffer, err := parseRequest(buf, rewriteHost)
+	return retBuffer, err
+}
+
+func parseRequest(org []byte, rewriteHost string) (ret []byte, err error) {
+	tp := bytes.NewBuffer(org)
+	// First line: GET /index.html HTTP/1.0
+	var b []byte
+	if b, err = tp.ReadBytes('\n'); err != nil {
+		return nil, err
+	}
+	req := new(http.Request)
+	// we invoked ReadRequest in GetHttpHostname before, so we ignore error
+	req.Method, req.RequestURI, req.Proto, _ = parseRequestLine(string(b))
+	rawurl := req.RequestURI
+	// CONNECT www.google.com:443 HTTP/1.1
+	justAuthority := req.Method == "CONNECT" && !strings.HasPrefix(rawurl, "/")
+	if justAuthority {
+		rawurl = "http://" + rawurl
+	}
+	req.URL, _ = url.ParseRequestURI(rawurl)
+	if justAuthority {
+		// Strip the bogus "http://" back off.
+		req.URL.Scheme = ""
+	}
+
+	//  RFC2616: first case
+	//  GET /index.html HTTP/1.1
+	//  Host: www.google.com
+	if req.URL.Host == "" {
+		changedBuf, err := changeHostName(tp, rewriteHost)
+		buf := new(bytes.Buffer)
+		buf.Write(b)
+		buf.Write(changedBuf)
+		return buf.Bytes(), err
+	}
+
+	// RFC2616: second case
+	// GET http://www.google.com/index.html HTTP/1.1
+	// Host: doesntmatter
+	// In this case, any Host line is ignored.
+	hostPort := strings.Split(req.URL.Host, ":")
+	if len(hostPort) == 1 {
+		req.URL.Host = rewriteHost
+	} else if len(hostPort) == 2 {
+		req.URL.Host = fmt.Sprintf("%s:%s", rewriteHost, hostPort[1])
+	}
+	firstLine := req.Method + " " + req.URL.String() + " " + req.Proto
+	buf := new(bytes.Buffer)
+	buf.WriteString(firstLine)
+	tp.WriteTo(buf)
+	return buf.Bytes(), err
+
+}
+
+// parseRequestLine parses "GET /foo HTTP/1.1" into its three parts.
+func parseRequestLine(line string) (method, requestURI, proto string, ok bool) {
+	s1 := strings.Index(line, " ")
+	s2 := strings.Index(line[s1+1:], " ")
+	if s1 < 0 || s2 < 0 {
+		return
+	}
+	s2 += s1 + 1
+	return line[:s1], line[s1+1 : s2], line[s2+1:], true
+}
+
+func changeHostName(buff *bytes.Buffer, rewriteHost string) (_ []byte, err error) {
+	retBuf := new(bytes.Buffer)
+
+	peek := buff.Bytes()
+	for len(peek) > 0 {
+		i := bytes.IndexByte(peek, '\n')
+		if i < 3 {
+			// Not present (-1) or found within the next few bytes,
+			// implying we're at the end ("\r\n\r\n" or "\n\n")
+			return nil, err
+		}
+		kv := peek[:i]
+		j := bytes.IndexByte(kv, ':')
+		if j < 0 {
+			return nil, fmt.Errorf("malformed MIME header line: " + string(kv))
+		}
+		if strings.Contains(strings.ToLower(string(kv[:j])), "host") {
+			var hostHeader string
+			portPos := bytes.IndexByte(kv[j+1:], ':')
+			if portPos == -1 {
+				hostHeader = fmt.Sprintf("Host: %s\n", rewriteHost)
+			} else {
+				hostHeader = fmt.Sprintf("Host: %s:%s\n", rewriteHost, kv[portPos+1:])
+			}
+			retBuf.WriteString(hostHeader)
+			peek = peek[i+1:]
+			break
+		} else {
+			retBuf.Write(peek[:i])
+			retBuf.WriteByte('\n')
+		}
+
+		peek = peek[i+1:]
+	}
+	retBuf.Write(peek)
+	return retBuf.Bytes(), err
+}
+
+func HttpAuthFunc(c *conn.Conn, userName, passWord, authorization string) (bAccess bool, err error) {
+	s := strings.SplitN(authorization, " ", 2)
+	if len(s) != 2 {
+		res := noAuthResponse()
+		res.Write(c.TcpConn)
+		return
+	}
+	b, err := base64.StdEncoding.DecodeString(s[1])
+	if err != nil {
+		return
+	}
+	pair := strings.SplitN(string(b), ":", 2)
+	if len(pair) != 2 {
+		return
+	}
+	if pair[0] != userName || pair[1] != passWord {
+		return
+	}
+	return true, nil
+}
+
+func noAuthResponse() *http.Response {
+	header := make(map[string][]string)
+	header["WWW-Authenticate"] = []string{`Basic realm="Restricted"`}
+	res := &http.Response{
+		Status:     "401 Not authorized",
+		StatusCode: 401,
+		Proto:      "HTTP/1.1",
+		ProtoMajor: 1,
+		ProtoMinor: 1,
+		Header:     header,
+	}
+	return res
+}

src/utils/vhost/https.go

@@ -0,0 +1,191 @@
+// 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 vhost
+
+import (
+	"fmt"
+	"io"
+	"net"
+	"strings"
+	"time"
+
+	"github.com/fatedier/frp/src/utils/conn"
+	"github.com/fatedier/frp/src/utils/pool"
+)
+
+const (
+	typeClientHello uint8 = 1 // Type client hello
+)
+
+// TLS extension numbers
+const (
+	extensionServerName          uint16 = 0
+	extensionStatusRequest       uint16 = 5
+	extensionSupportedCurves     uint16 = 10
+	extensionSupportedPoints     uint16 = 11
+	extensionSignatureAlgorithms uint16 = 13
+	extensionALPN                uint16 = 16
+	extensionSCT                 uint16 = 18
+	extensionSessionTicket       uint16 = 35
+	extensionNextProtoNeg        uint16 = 13172 // not IANA assigned
+	extensionRenegotiationInfo   uint16 = 0xff01
+)
+
+type HttpsMuxer struct {
+	*VhostMuxer
+}
+
+func NewHttpsMuxer(listener *conn.Listener, timeout time.Duration) (*HttpsMuxer, error) {
+	mux, err := NewVhostMuxer(listener, GetHttpsHostname, nil, nil, timeout)
+	return &HttpsMuxer{mux}, err
+}
+
+func readHandshake(rd io.Reader) (host string, err error) {
+	data := pool.GetBuf(1024)
+	origin := data
+	defer pool.PutBuf(origin)
+	length, err := rd.Read(data)
+	if err != nil {
+		return
+	} else {
+		if length < 47 {
+			err = fmt.Errorf("readHandshake: proto length[%d] is too short", length)
+			return
+		}
+	}
+	data = data[:length]
+	if uint8(data[5]) != typeClientHello {
+		err = fmt.Errorf("readHandshake: type[%d] is not clientHello", uint16(data[5]))
+		return
+	}
+
+	// session
+	sessionIdLen := int(data[43])
+	if sessionIdLen > 32 || len(data) < 44+sessionIdLen {
+		err = fmt.Errorf("readHandshake: sessionIdLen[%d] is long", sessionIdLen)
+		return
+	}
+	data = data[44+sessionIdLen:]
+	if len(data) < 2 {
+		err = fmt.Errorf("readHandshake: dataLen[%d] after session is short", len(data))
+		return
+	}
+
+	// cipher suite numbers
+	cipherSuiteLen := int(data[0])<<8 | int(data[1])
+	if cipherSuiteLen%2 == 1 || len(data) < 2+cipherSuiteLen {
+		err = fmt.Errorf("readHandshake: dataLen[%d] after cipher suite is short", len(data))
+		return
+	}
+	data = data[2+cipherSuiteLen:]
+	if len(data) < 1 {
+		err = fmt.Errorf("readHandshake: cipherSuiteLen[%d] is long", cipherSuiteLen)
+		return
+	}
+
+	// compression method
+	compressionMethodsLen := int(data[0])
+	if len(data) < 1+compressionMethodsLen {
+		err = fmt.Errorf("readHandshake: compressionMethodsLen[%d] is long", compressionMethodsLen)
+		return
+	}
+
+	data = data[1+compressionMethodsLen:]
+	if len(data) == 0 {
+		// ClientHello is optionally followed by extension data
+		err = fmt.Errorf("readHandshake: there is no extension data to get servername")
+		return
+	}
+	if len(data) < 2 {
+		err = fmt.Errorf("readHandshake: extension dataLen[%d] is too short")
+		return
+	}
+
+	extensionsLength := int(data[0])<<8 | int(data[1])
+	data = data[2:]
+	if extensionsLength != len(data) {
+		err = fmt.Errorf("readHandshake: extensionsLen[%d] is not equal to dataLen[%d]", extensionsLength, len(data))
+		return
+	}
+	for len(data) != 0 {
+		if len(data) < 4 {
+			err = fmt.Errorf("readHandshake: extensionsDataLen[%d] is too short", len(data))
+			return
+		}
+		extension := uint16(data[0])<<8 | uint16(data[1])
+		length := int(data[2])<<8 | int(data[3])
+		data = data[4:]
+		if len(data) < length {
+			err = fmt.Errorf("readHandshake: extensionLen[%d] is long", length)
+			return
+		}
+
+		switch extension {
+		case extensionRenegotiationInfo:
+			if length != 1 || data[0] != 0 {
+				err = fmt.Errorf("readHandshake: extension reNegotiationInfoLen[%d] is short", length)
+				return
+			}
+		case extensionNextProtoNeg:
+		case extensionStatusRequest:
+		case extensionServerName:
+			d := data[:length]
+			if len(d) < 2 {
+				err = fmt.Errorf("readHandshake: remiaining dataLen[%d] is short", len(d))
+				return
+			}
+			namesLen := int(d[0])<<8 | int(d[1])
+			d = d[2:]
+			if len(d) != namesLen {
+				err = fmt.Errorf("readHandshake: nameListLen[%d] is not equal to dataLen[%d]", namesLen, len(d))
+				return
+			}
+			for len(d) > 0 {
+				if len(d) < 3 {
+					err = fmt.Errorf("readHandshake: extension serverNameLen[%d] is short", len(d))
+					return
+				}
+				nameType := d[0]
+				nameLen := int(d[1])<<8 | int(d[2])
+				d = d[3:]
+				if len(d) < nameLen {
+					err = fmt.Errorf("readHandshake: nameLen[%d] is not equal to dataLen[%d]", nameLen, len(d))
+					return
+				}
+				if nameType == 0 {
+					serverName := string(d[:nameLen])
+					host = strings.TrimSpace(serverName)
+					return host, nil
+				}
+				d = d[nameLen:]
+			}
+		}
+		data = data[length:]
+	}
+	err = fmt.Errorf("Unknow error")
+	return
+}
+
+func GetHttpsHostname(c *conn.Conn) (sc net.Conn, _ map[string]string, err error) {
+	reqInfoMap := make(map[string]string, 0)
+	sc, rd := newShareConn(c.TcpConn)
+	host, err := readHandshake(rd)
+	if err != nil {
+		return sc, reqInfoMap, err
+	}
+	reqInfoMap["Host"] = host
+	reqInfoMap["Scheme"] = "https"
+	return sc, reqInfoMap, nil
+}

src/utils/vhost/router.go

@@ -0,0 +1,114 @@
+package vhost
+
+import (
+	"sort"
+	"strings"
+	"sync"
+)
+
+type VhostRouters struct {
+	RouterByDomain map[string][]*VhostRouter
+	mutex          sync.RWMutex
+}
+
+type VhostRouter struct {
+	domain   string
+	location string
+	listener *Listener
+}
+
+func NewVhostRouters() *VhostRouters {
+	return &VhostRouters{
+		RouterByDomain: make(map[string][]*VhostRouter),
+	}
+}
+
+func (r *VhostRouters) Add(domain, location string, l *Listener) {
+	r.mutex.Lock()
+	defer r.mutex.Unlock()
+
+	vrs, found := r.RouterByDomain[domain]
+	if !found {
+		vrs = make([]*VhostRouter, 0, 1)
+	}
+
+	vr := &VhostRouter{
+		domain:   domain,
+		location: location,
+		listener: l,
+	}
+	vrs = append(vrs, vr)
+
+	sort.Sort(sort.Reverse(ByLocation(vrs)))
+	r.RouterByDomain[domain] = vrs
+}
+
+func (r *VhostRouters) Del(domain, location string) {
+	r.mutex.Lock()
+	defer r.mutex.Unlock()
+
+	vrs, found := r.RouterByDomain[domain]
+	if !found {
+		return
+	}
+
+	for i, vr := range vrs {
+		if vr.location == location {
+			if len(vrs) > i+1 {
+				r.RouterByDomain[domain] = append(vrs[:i], vrs[i+1:]...)
+			} else {
+				r.RouterByDomain[domain] = vrs[:i]
+			}
+		}
+	}
+}
+
+func (r *VhostRouters) Get(host, path string) (vr *VhostRouter, exist bool) {
+	r.mutex.RLock()
+	defer r.mutex.RUnlock()
+
+	vrs, found := r.RouterByDomain[host]
+	if !found {
+		return
+	}
+
+	// can't support load balance, will to do
+	for _, vr = range vrs {
+		if strings.HasPrefix(path, vr.location) {
+			return vr, true
+		}
+	}
+
+	return
+}
+
+func (r *VhostRouters) Exist(host, path string) (vr *VhostRouter, exist bool) {
+	r.mutex.RLock()
+	defer r.mutex.RUnlock()
+
+	vrs, found := r.RouterByDomain[host]
+	if !found {
+		return
+	}
+
+	for _, vr = range vrs {
+		if path == vr.location {
+			return vr, true
+		}
+	}
+
+	return
+}
+
+// sort by location
+type ByLocation []*VhostRouter
+
+func (a ByLocation) Len() int {
+	return len(a)
+}
+func (a ByLocation) Swap(i, j int) {
+	a[i], a[j] = a[j], a[i]
+}
+func (a ByLocation) Less(i, j int) bool {
+	return strings.Compare(a[i].location, a[j].location) < 0
+}

src/utils/vhost/vhost.go

@@ -0,0 +1,234 @@
+// 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 vhost
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"net"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/fatedier/frp/src/utils/conn"
+)
+
+type muxFunc func(*conn.Conn) (net.Conn, map[string]string, error)
+type httpAuthFunc func(*conn.Conn, string, string, string) (bool, error)
+type hostRewriteFunc func(*conn.Conn, string) (net.Conn, error)
+
+type VhostMuxer struct {
+	listener       *conn.Listener
+	timeout        time.Duration
+	vhostFunc      muxFunc
+	authFunc       httpAuthFunc
+	rewriteFunc    hostRewriteFunc
+	registryRouter *VhostRouters
+	mutex          sync.RWMutex
+}
+
+func NewVhostMuxer(listener *conn.Listener, vhostFunc muxFunc, authFunc httpAuthFunc, rewriteFunc hostRewriteFunc, timeout time.Duration) (mux *VhostMuxer, err error) {
+	mux = &VhostMuxer{
+		listener:       listener,
+		timeout:        timeout,
+		vhostFunc:      vhostFunc,
+		authFunc:       authFunc,
+		rewriteFunc:    rewriteFunc,
+		registryRouter: NewVhostRouters(),
+	}
+	go mux.run()
+	return mux, nil
+}
+
+// listen for a new domain name, if rewriteHost is not empty  and rewriteFunc is not nil, then rewrite the host header to rewriteHost
+func (v *VhostMuxer) Listen(name, location, rewriteHost, userName, passWord string) (l *Listener, err error) {
+	v.mutex.Lock()
+	defer v.mutex.Unlock()
+
+	_, ok := v.registryRouter.Exist(name, location)
+	if ok {
+		return nil, fmt.Errorf("hostname [%s] location [%s] is already registered", name, location)
+	}
+
+	l = &Listener{
+		name:        name,
+		location:    location,
+		rewriteHost: rewriteHost,
+		userName:    userName,
+		passWord:    passWord,
+		mux:         v,
+		accept:      make(chan *conn.Conn),
+	}
+	v.registryRouter.Add(name, location, l)
+	return l, nil
+}
+
+func (v *VhostMuxer) getListener(name, path string) (l *Listener, exist bool) {
+	v.mutex.RLock()
+	defer v.mutex.RUnlock()
+
+	// first we check the full hostname
+	// if not exist, then check the wildcard_domain such as *.example.com
+	vr, found := v.registryRouter.Get(name, path)
+	if found {
+		return vr.listener, true
+	}
+
+	domainSplit := strings.Split(name, ".")
+	if len(domainSplit) < 3 {
+		return l, false
+	}
+	domainSplit[0] = "*"
+	name = strings.Join(domainSplit, ".")
+
+	vr, found = v.registryRouter.Get(name, path)
+	if !found {
+		return
+	}
+
+	return vr.listener, true
+}
+
+func (v *VhostMuxer) run() {
+	for {
+		conn, err := v.listener.Accept()
+		if err != nil {
+			return
+		}
+		go v.handle(conn)
+	}
+}
+
+func (v *VhostMuxer) handle(c *conn.Conn) {
+	if err := c.SetDeadline(time.Now().Add(v.timeout)); err != nil {
+		c.Close()
+		return
+	}
+
+	sConn, reqInfoMap, err := v.vhostFunc(c)
+	if err != nil {
+		c.Close()
+		return
+	}
+
+	name := strings.ToLower(reqInfoMap["Host"])
+	path := strings.ToLower(reqInfoMap["Path"])
+	l, ok := v.getListener(name, path)
+	if !ok {
+		c.Close()
+		return
+	}
+
+	// if authFunc is exist and userName/password is set
+	// verify user access
+	if l.mux.authFunc != nil &&
+		l.userName != "" && l.passWord != "" {
+		bAccess, err := l.mux.authFunc(c, l.userName, l.passWord, reqInfoMap["Authorization"])
+		if bAccess == false || err != nil {
+			res := noAuthResponse()
+			res.Write(c.TcpConn)
+			c.Close()
+			return
+		}
+	}
+
+	if err = sConn.SetDeadline(time.Time{}); err != nil {
+		c.Close()
+		return
+	}
+	c.SetTcpConn(sConn)
+
+	l.accept <- c
+}
+
+type Listener struct {
+	name        string
+	location    string
+	rewriteHost string
+	userName    string
+	passWord    string
+	mux         *VhostMuxer // for closing VhostMuxer
+	accept      chan *conn.Conn
+}
+
+func (l *Listener) Accept() (*conn.Conn, error) {
+	conn, ok := <-l.accept
+	if !ok {
+		return nil, fmt.Errorf("Listener closed")
+	}
+
+	// if rewriteFunc is exist and rewriteHost is set
+	// rewrite http requests with a modified host header
+	if l.mux.rewriteFunc != nil && l.rewriteHost != "" {
+		sConn, err := l.mux.rewriteFunc(conn, l.rewriteHost)
+		if err != nil {
+			return nil, fmt.Errorf("http host header rewrite failed")
+		}
+		conn.SetTcpConn(sConn)
+	}
+
+	return conn, nil
+}
+
+func (l *Listener) Close() error {
+	l.mux.registryRouter.Del(l.name, l.location)
+	close(l.accept)
+	return nil
+}
+
+func (l *Listener) Name() string {
+	return l.name
+}
+
+type sharedConn struct {
+	net.Conn
+	sync.Mutex
+	buff *bytes.Buffer
+}
+
+// the bytes you read in io.Reader, will be reserved in sharedConn
+func newShareConn(conn net.Conn) (*sharedConn, io.Reader) {
+	sc := &sharedConn{
+		Conn: conn,
+		buff: bytes.NewBuffer(make([]byte, 0, 1024)),
+	}
+	return sc, io.TeeReader(conn, sc.buff)
+}
+
+func (sc *sharedConn) Read(p []byte) (n int, err error) {
+	sc.Lock()
+	if sc.buff == nil {
+		sc.Unlock()
+		return sc.Conn.Read(p)
+	}
+	sc.Unlock()
+	n, err = sc.buff.Read(p)
+
+	if err == io.EOF {
+		sc.Lock()
+		sc.buff = nil
+		sc.Unlock()
+		var n2 int
+		n2, err = sc.Conn.Read(p[n:])
+
+		n += n2
+	}
+	return
+}
+
+func (sc *sharedConn) WriteBuff(buffer []byte) (err error) {
+	sc.buff.Reset()
+	_, err = sc.buff.Write(buffer)
+	return err
+}

test/clean_test.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+pid=`ps aux|grep './bin/echo_server'|grep -v grep|awk {'print $2'}`
+if [ -n "${pid}" ]; then
+    kill ${pid}
+fi
+
+pid=`ps aux|grep './bin/http_server'|grep -v grep|awk {'print $2'}`
+if [ -n "${pid}" ]; then
+    kill ${pid}
+fi
+
+pid=`ps aux|grep './../bin/frps -c ./conf/auto_test_frps.ini'|grep -v grep|awk {'print $2'}`
+if [ -n "${pid}" ]; then
+    kill ${pid}
+fi
+
+pid=`ps aux|grep './../bin/frpc -c ./conf/auto_test_frpc.ini'|grep -v grep|awk {'print $2'}`
+if [ -n "${pid}" ]; then
+    kill ${pid}
+fi
+
+rm -f ./frps.log
+rm -f ./frpc.log

test/conf/auto_test_frpc.ini

@@ -0,0 +1,20 @@
+[common]
+server_addr = 0.0.0.0
+server_port = 10700
+log_file = ./frpc.log
+# debug, info, warn, error
+log_level = debug
+auth_token = 123
+
+[echo]
+type = tcp
+local_ip = 127.0.0.1
+local_port = 10701
+use_encryption = true
+use_gzip = true
+
+[web]
+type = http
+local_ip = 127.0.0.1
+local_port = 10702
+use_gzip = true

test/conf/auto_test_frps.ini

@@ -0,0 +1,17 @@
+[common]
+bind_addr = 0.0.0.0
+bind_port = 10700
+vhost_http_port = 10710
+log_file = ./frps.log
+log_level = debug
+
+[echo]
+type = tcp
+auth_token = 123
+bind_addr = 0.0.0.0
+listen_port = 10711
+
+[web]
+type = http
+auth_token = 123
+custom_domains = 127.0.0.1

test/echo_server.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/fatedier/frp/src/utils/conn"
+)
+
+var (
+	PORT int64 = 10701
+)
+
+func main() {
+	l, err := conn.Listen("0.0.0.0", PORT)
+	if err != nil {
+		fmt.Printf("echo server listen error: %v\n", err)
+		return
+	}
+
+	for {
+		c, err := l.Accept()
+		if err != nil {
+			fmt.Printf("echo server accept error: %v\n", err)
+			return
+		}
+
+		go echoWorker(c)
+	}
+}
+
+func echoWorker(c *conn.Conn) {
+	for {
+		buff, err := c.ReadLine()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			fmt.Printf("echo server read error: %v\n", err)
+			return
+		}
+
+		c.WriteString(buff)
+	}
+}

test/func_test.go

@@ -0,0 +1,60 @@
+package test
+
+import (
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/fatedier/frp/src/utils/conn"
+)
+
+var (
+	ECHO_PORT     int64  = 10711
+	HTTP_PORT     int64  = 10710
+	ECHO_TEST_STR string = "Hello World\n"
+	HTTP_RES_STR  string = "Hello World"
+)
+
+func TestEchoServer(t *testing.T) {
+	c, err := conn.ConnectServer(fmt.Sprintf("0.0.0.0:%d", ECHO_PORT))
+	if err != nil {
+		t.Fatalf("connect to echo server error: %v", err)
+	}
+	timer := time.Now().Add(time.Duration(5) * time.Second)
+	c.SetDeadline(timer)
+
+	c.WriteString(ECHO_TEST_STR)
+
+	buff, err := c.ReadLine()
+	if err != nil {
+		t.Fatalf("read from echo server error: %v", err)
+	}
+
+	if ECHO_TEST_STR != buff {
+		t.Fatalf("content error, send [%s], get [%s]", strings.Trim(ECHO_TEST_STR, "\n"), strings.Trim(buff, "\n"))
+	}
+}
+
+func TestHttpServer(t *testing.T) {
+	client := &http.Client{}
+	req, _ := http.NewRequest("GET", fmt.Sprintf("http://127.0.0.1:%d", HTTP_PORT), nil)
+	res, err := client.Do(req)
+	if err != nil {
+		t.Fatalf("do http request error: %v", err)
+	}
+	if res.StatusCode == 200 {
+		body, err := ioutil.ReadAll(res.Body)
+		if err != nil {
+			t.Fatalf("read from http server error: %v", err)
+		}
+		bodystr := string(body)
+		if bodystr != HTTP_RES_STR {
+			t.Fatalf("content from http server error [%s], correct string is [%s]", bodystr, HTTP_RES_STR)
+		}
+	} else {
+		t.Fatalf("http code from http server error [%d]", res.StatusCode)
+	}
+}

test/http_server.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+)
+
+var (
+	PORT         int64  = 10702
+	HTTP_RES_STR string = "Hello World"
+)
+
+func main() {
+	http.HandleFunc("/", request)
+	http.ListenAndServe(fmt.Sprintf("0.0.0.0:%d", PORT), nil)
+}
+
+func request(w http.ResponseWriter, r *http.Request) {
+	w.Write([]byte(HTTP_RES_STR))
+}

test/run_test.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+./bin/echo_server &
+./bin/http_server &
+./../bin/frps -c ./conf/auto_test_frps.ini &
+sleep 1
+./../bin/frpc -c ./conf/auto_test_frpc.ini &
+
+# wait until proxies are connected
+for((i=1; i<15; i++))
+do
+    sleep 1
+    str=`ss -ant|grep 10700|grep LISTEN`
+    if [ -z "${str}" ]; then
+        echo "wait"
+        continue
+    fi
+
+    str=`ss -ant|grep 10710|grep LISTEN`
+    if [ -z "${str}" ]; then
+        echo "wait"
+        continue
+    fi
+
+    str=`ss -ant|grep 10711|grep LISTEN`
+    if [ -z "${str}" ]; then
+        echo "wait"
+        continue
+    fi
+
+    break
+done
+
+sleep 1

vendor/github.com/astaxie/beego/logs/color.go

@@ -0,0 +1,28 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// 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.
+
+// +build !windows
+
+package logs
+
+import "io"
+
+type ansiColorWriter struct {
+	w    io.Writer
+	mode outputMode
+}
+
+func (cw *ansiColorWriter) Write(p []byte) (int, error) {
+	return cw.w.Write(p)
+}

vendor/github.com/astaxie/beego/logs/color_windows.go

@@ -0,0 +1,428 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// 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.
+
+// +build windows
+
+package logs
+
+import (
+	"bytes"
+	"io"
+	"strings"
+	"syscall"
+	"unsafe"
+)
+
+type (
+	csiState    int
+	parseResult int
+)
+
+const (
+	outsideCsiCode csiState = iota
+	firstCsiCode
+	secondCsiCode
+)
+
+const (
+	noConsole parseResult = iota
+	changedColor
+	unknown
+)
+
+type ansiColorWriter struct {
+	w             io.Writer
+	mode          outputMode
+	state         csiState
+	paramStartBuf bytes.Buffer
+	paramBuf      bytes.Buffer
+}
+
+const (
+	firstCsiChar   byte = '\x1b'
+	secondeCsiChar byte = '['
+	separatorChar  byte = ';'
+	sgrCode        byte = 'm'
+)
+
+const (
+	foregroundBlue      = uint16(0x0001)
+	foregroundGreen     = uint16(0x0002)
+	foregroundRed       = uint16(0x0004)
+	foregroundIntensity = uint16(0x0008)
+	backgroundBlue      = uint16(0x0010)
+	backgroundGreen     = uint16(0x0020)
+	backgroundRed       = uint16(0x0040)
+	backgroundIntensity = uint16(0x0080)
+	underscore          = uint16(0x8000)
+
+	foregroundMask = foregroundBlue | foregroundGreen | foregroundRed | foregroundIntensity
+	backgroundMask = backgroundBlue | backgroundGreen | backgroundRed | backgroundIntensity
+)
+
+const (
+	ansiReset        = "0"
+	ansiIntensityOn  = "1"
+	ansiIntensityOff = "21"
+	ansiUnderlineOn  = "4"
+	ansiUnderlineOff = "24"
+	ansiBlinkOn      = "5"
+	ansiBlinkOff     = "25"
+
+	ansiForegroundBlack   = "30"
+	ansiForegroundRed     = "31"
+	ansiForegroundGreen   = "32"
+	ansiForegroundYellow  = "33"
+	ansiForegroundBlue    = "34"
+	ansiForegroundMagenta = "35"
+	ansiForegroundCyan    = "36"
+	ansiForegroundWhite   = "37"
+	ansiForegroundDefault = "39"
+
+	ansiBackgroundBlack   = "40"
+	ansiBackgroundRed     = "41"
+	ansiBackgroundGreen   = "42"
+	ansiBackgroundYellow  = "43"
+	ansiBackgroundBlue    = "44"
+	ansiBackgroundMagenta = "45"
+	ansiBackgroundCyan    = "46"
+	ansiBackgroundWhite   = "47"
+	ansiBackgroundDefault = "49"
+
+	ansiLightForegroundGray    = "90"
+	ansiLightForegroundRed     = "91"
+	ansiLightForegroundGreen   = "92"
+	ansiLightForegroundYellow  = "93"
+	ansiLightForegroundBlue    = "94"
+	ansiLightForegroundMagenta = "95"
+	ansiLightForegroundCyan    = "96"
+	ansiLightForegroundWhite   = "97"
+
+	ansiLightBackgroundGray    = "100"
+	ansiLightBackgroundRed     = "101"
+	ansiLightBackgroundGreen   = "102"
+	ansiLightBackgroundYellow  = "103"
+	ansiLightBackgroundBlue    = "104"
+	ansiLightBackgroundMagenta = "105"
+	ansiLightBackgroundCyan    = "106"
+	ansiLightBackgroundWhite   = "107"
+)
+
+type drawType int
+
+const (
+	foreground drawType = iota
+	background
+)
+
+type winColor struct {
+	code     uint16
+	drawType drawType
+}
+
+var colorMap = map[string]winColor{
+	ansiForegroundBlack:   {0, foreground},
+	ansiForegroundRed:     {foregroundRed, foreground},
+	ansiForegroundGreen:   {foregroundGreen, foreground},
+	ansiForegroundYellow:  {foregroundRed | foregroundGreen, foreground},
+	ansiForegroundBlue:    {foregroundBlue, foreground},
+	ansiForegroundMagenta: {foregroundRed | foregroundBlue, foreground},
+	ansiForegroundCyan:    {foregroundGreen | foregroundBlue, foreground},
+	ansiForegroundWhite:   {foregroundRed | foregroundGreen | foregroundBlue, foreground},
+	ansiForegroundDefault: {foregroundRed | foregroundGreen | foregroundBlue, foreground},
+
+	ansiBackgroundBlack:   {0, background},
+	ansiBackgroundRed:     {backgroundRed, background},
+	ansiBackgroundGreen:   {backgroundGreen, background},
+	ansiBackgroundYellow:  {backgroundRed | backgroundGreen, background},
+	ansiBackgroundBlue:    {backgroundBlue, background},
+	ansiBackgroundMagenta: {backgroundRed | backgroundBlue, background},
+	ansiBackgroundCyan:    {backgroundGreen | backgroundBlue, background},
+	ansiBackgroundWhite:   {backgroundRed | backgroundGreen | backgroundBlue, background},
+	ansiBackgroundDefault: {0, background},
+
+	ansiLightForegroundGray:    {foregroundIntensity, foreground},
+	ansiLightForegroundRed:     {foregroundIntensity | foregroundRed, foreground},
+	ansiLightForegroundGreen:   {foregroundIntensity | foregroundGreen, foreground},
+	ansiLightForegroundYellow:  {foregroundIntensity | foregroundRed | foregroundGreen, foreground},
+	ansiLightForegroundBlue:    {foregroundIntensity | foregroundBlue, foreground},
+	ansiLightForegroundMagenta: {foregroundIntensity | foregroundRed | foregroundBlue, foreground},
+	ansiLightForegroundCyan:    {foregroundIntensity | foregroundGreen | foregroundBlue, foreground},
+	ansiLightForegroundWhite:   {foregroundIntensity | foregroundRed | foregroundGreen | foregroundBlue, foreground},
+
+	ansiLightBackgroundGray:    {backgroundIntensity, background},
+	ansiLightBackgroundRed:     {backgroundIntensity | backgroundRed, background},
+	ansiLightBackgroundGreen:   {backgroundIntensity | backgroundGreen, background},
+	ansiLightBackgroundYellow:  {backgroundIntensity | backgroundRed | backgroundGreen, background},
+	ansiLightBackgroundBlue:    {backgroundIntensity | backgroundBlue, background},
+	ansiLightBackgroundMagenta: {backgroundIntensity | backgroundRed | backgroundBlue, background},
+	ansiLightBackgroundCyan:    {backgroundIntensity | backgroundGreen | backgroundBlue, background},
+	ansiLightBackgroundWhite:   {backgroundIntensity | backgroundRed | backgroundGreen | backgroundBlue, background},
+}
+
+var (
+	kernel32                       = syscall.NewLazyDLL("kernel32.dll")
+	procSetConsoleTextAttribute    = kernel32.NewProc("SetConsoleTextAttribute")
+	procGetConsoleScreenBufferInfo = kernel32.NewProc("GetConsoleScreenBufferInfo")
+	defaultAttr                    *textAttributes
+)
+
+func init() {
+	screenInfo := getConsoleScreenBufferInfo(uintptr(syscall.Stdout))
+	if screenInfo != nil {
+		colorMap[ansiForegroundDefault] = winColor{
+			screenInfo.WAttributes & (foregroundRed | foregroundGreen | foregroundBlue),
+			foreground,
+		}
+		colorMap[ansiBackgroundDefault] = winColor{
+			screenInfo.WAttributes & (backgroundRed | backgroundGreen | backgroundBlue),
+			background,
+		}
+		defaultAttr = convertTextAttr(screenInfo.WAttributes)
+	}
+}
+
+type coord struct {
+	X, Y int16
+}
+
+type smallRect struct {
+	Left, Top, Right, Bottom int16
+}
+
+type consoleScreenBufferInfo struct {
+	DwSize              coord
+	DwCursorPosition    coord
+	WAttributes         uint16
+	SrWindow            smallRect
+	DwMaximumWindowSize coord
+}
+
+func getConsoleScreenBufferInfo(hConsoleOutput uintptr) *consoleScreenBufferInfo {
+	var csbi consoleScreenBufferInfo
+	ret, _, _ := procGetConsoleScreenBufferInfo.Call(
+		hConsoleOutput,
+		uintptr(unsafe.Pointer(&csbi)))
+	if ret == 0 {
+		return nil
+	}
+	return &csbi
+}
+
+func setConsoleTextAttribute(hConsoleOutput uintptr, wAttributes uint16) bool {
+	ret, _, _ := procSetConsoleTextAttribute.Call(
+		hConsoleOutput,
+		uintptr(wAttributes))
+	return ret != 0
+}
+
+type textAttributes struct {
+	foregroundColor     uint16
+	backgroundColor     uint16
+	foregroundIntensity uint16
+	backgroundIntensity uint16
+	underscore          uint16
+	otherAttributes     uint16
+}
+
+func convertTextAttr(winAttr uint16) *textAttributes {
+	fgColor := winAttr & (foregroundRed | foregroundGreen | foregroundBlue)
+	bgColor := winAttr & (backgroundRed | backgroundGreen | backgroundBlue)
+	fgIntensity := winAttr & foregroundIntensity
+	bgIntensity := winAttr & backgroundIntensity
+	underline := winAttr & underscore
+	otherAttributes := winAttr &^ (foregroundMask | backgroundMask | underscore)
+	return &textAttributes{fgColor, bgColor, fgIntensity, bgIntensity, underline, otherAttributes}
+}
+
+func convertWinAttr(textAttr *textAttributes) uint16 {
+	var winAttr uint16
+	winAttr |= textAttr.foregroundColor
+	winAttr |= textAttr.backgroundColor
+	winAttr |= textAttr.foregroundIntensity
+	winAttr |= textAttr.backgroundIntensity
+	winAttr |= textAttr.underscore
+	winAttr |= textAttr.otherAttributes
+	return winAttr
+}
+
+func changeColor(param []byte) parseResult {
+	screenInfo := getConsoleScreenBufferInfo(uintptr(syscall.Stdout))
+	if screenInfo == nil {
+		return noConsole
+	}
+
+	winAttr := convertTextAttr(screenInfo.WAttributes)
+	strParam := string(param)
+	if len(strParam) <= 0 {
+		strParam = "0"
+	}
+	csiParam := strings.Split(strParam, string(separatorChar))
+	for _, p := range csiParam {
+		c, ok := colorMap[p]
+		switch {
+		case !ok:
+			switch p {
+			case ansiReset:
+				winAttr.foregroundColor = defaultAttr.foregroundColor
+				winAttr.backgroundColor = defaultAttr.backgroundColor
+				winAttr.foregroundIntensity = defaultAttr.foregroundIntensity
+				winAttr.backgroundIntensity = defaultAttr.backgroundIntensity
+				winAttr.underscore = 0
+				winAttr.otherAttributes = 0
+			case ansiIntensityOn:
+				winAttr.foregroundIntensity = foregroundIntensity
+			case ansiIntensityOff:
+				winAttr.foregroundIntensity = 0
+			case ansiUnderlineOn:
+				winAttr.underscore = underscore
+			case ansiUnderlineOff:
+				winAttr.underscore = 0
+			case ansiBlinkOn:
+				winAttr.backgroundIntensity = backgroundIntensity
+			case ansiBlinkOff:
+				winAttr.backgroundIntensity = 0
+			default:
+				// unknown code
+			}
+		case c.drawType == foreground:
+			winAttr.foregroundColor = c.code
+		case c.drawType == background:
+			winAttr.backgroundColor = c.code
+		}
+	}
+	winTextAttribute := convertWinAttr(winAttr)
+	setConsoleTextAttribute(uintptr(syscall.Stdout), winTextAttribute)
+
+	return changedColor
+}
+
+func parseEscapeSequence(command byte, param []byte) parseResult {
+	if defaultAttr == nil {
+		return noConsole
+	}
+
+	switch command {
+	case sgrCode:
+		return changeColor(param)
+	default:
+		return unknown
+	}
+}
+
+func (cw *ansiColorWriter) flushBuffer() (int, error) {
+	return cw.flushTo(cw.w)
+}
+
+func (cw *ansiColorWriter) resetBuffer() (int, error) {
+	return cw.flushTo(nil)
+}
+
+func (cw *ansiColorWriter) flushTo(w io.Writer) (int, error) {
+	var n1, n2 int
+	var err error
+
+	startBytes := cw.paramStartBuf.Bytes()
+	cw.paramStartBuf.Reset()
+	if w != nil {
+		n1, err = cw.w.Write(startBytes)
+		if err != nil {
+			return n1, err
+		}
+	} else {
+		n1 = len(startBytes)
+	}
+	paramBytes := cw.paramBuf.Bytes()
+	cw.paramBuf.Reset()
+	if w != nil {
+		n2, err = cw.w.Write(paramBytes)
+		if err != nil {
+			return n1 + n2, err
+		}
+	} else {
+		n2 = len(paramBytes)
+	}
+	return n1 + n2, nil
+}
+
+func isParameterChar(b byte) bool {
+	return ('0' <= b && b <= '9') || b == separatorChar
+}
+
+func (cw *ansiColorWriter) Write(p []byte) (int, error) {
+	r, nw, first, last := 0, 0, 0, 0
+	if cw.mode != DiscardNonColorEscSeq {
+		cw.state = outsideCsiCode
+		cw.resetBuffer()
+	}
+
+	var err error
+	for i, ch := range p {
+		switch cw.state {
+		case outsideCsiCode:
+			if ch == firstCsiChar {
+				cw.paramStartBuf.WriteByte(ch)
+				cw.state = firstCsiCode
+			}
+		case firstCsiCode:
+			switch ch {
+			case firstCsiChar:
+				cw.paramStartBuf.WriteByte(ch)
+				break
+			case secondeCsiChar:
+				cw.paramStartBuf.WriteByte(ch)
+				cw.state = secondCsiCode
+				last = i - 1
+			default:
+				cw.resetBuffer()
+				cw.state = outsideCsiCode
+			}
+		case secondCsiCode:
+			if isParameterChar(ch) {
+				cw.paramBuf.WriteByte(ch)
+			} else {
+				nw, err = cw.w.Write(p[first:last])
+				r += nw
+				if err != nil {
+					return r, err
+				}
+				first = i + 1
+				result := parseEscapeSequence(ch, cw.paramBuf.Bytes())
+				if result == noConsole || (cw.mode == OutputNonColorEscSeq && result == unknown) {
+					cw.paramBuf.WriteByte(ch)
+					nw, err := cw.flushBuffer()
+					if err != nil {
+						return r, err
+					}
+					r += nw
+				} else {
+					n, _ := cw.resetBuffer()
+					// Add one more to the size of the buffer for the last ch
+					r += n + 1
+				}
+
+				cw.state = outsideCsiCode
+			}
+		default:
+			cw.state = outsideCsiCode
+		}
+	}
+
+	if cw.mode != DiscardNonColorEscSeq || cw.state == outsideCsiCode {
+		nw, err = cw.w.Write(p[first:])
+		r += nw
+	}
+
+	return r, err
+}

vendor/github.com/astaxie/beego/logs/conn.go

@@ -17,14 +17,14 @@ package logs
 import (
 	"encoding/json"
 	"io"
-	"log"
 	"net"
+	"time"
 )
 
-// ConnWriter implements LoggerInterface.
+// connWriter implements LoggerInterface.
 // it writes messages in keep-live tcp connection.
-type ConnWriter struct {
-	lg             *log.Logger
+type connWriter struct {
+	lg             *logWriter
 	innerWriter    io.WriteCloser
 	ReconnectOnMsg bool   `json:"reconnectOnMsg"`
 	Reconnect      bool   `json:"reconnect"`
@@ -33,26 +33,26 @@ type ConnWriter struct {
 	Level          int    `json:"level"`
 }
 
-// create new ConnWrite returning as LoggerInterface.
-func NewConn() LoggerInterface {
-	conn := new(ConnWriter)
+// NewConn create new ConnWrite returning as LoggerInterface.
+func NewConn() Logger {
+	conn := new(connWriter)
 	conn.Level = LevelTrace
 	return conn
 }
 
-// init connection writer with json config.
+// Init init connection writer with json config.
 // json config only need key "level".
-func (c *ConnWriter) Init(jsonconfig string) error {
-	return json.Unmarshal([]byte(jsonconfig), c)
+func (c *connWriter) Init(jsonConfig string) error {
+	return json.Unmarshal([]byte(jsonConfig), c)
 }
 
-// write message in connection.
+// WriteMsg write message in connection.
 // if connection is down, try to re-connect.
-func (c *ConnWriter) WriteMsg(msg string, level int) error {
+func (c *connWriter) WriteMsg(when time.Time, msg string, level int) error {
 	if level > c.Level {
 		return nil
 	}
-	if c.neddedConnectOnMsg() {
+	if c.needToConnectOnMsg() {
 		err := c.connect()
 		if err != nil {
 			return err
@@ -62,23 +62,24 @@ func (c *ConnWriter) WriteMsg(msg string, level int) error {
 	if c.ReconnectOnMsg {
 		defer c.innerWriter.Close()
 	}
-	c.lg.Println(msg)
+
+	c.lg.println(when, msg)
 	return nil
 }
 
-// implementing method. empty.
-func (c *ConnWriter) Flush() {
+// Flush implementing method. empty.
+func (c *connWriter) Flush() {
 
 }
 
-// destroy connection writer and close tcp listener.
-func (c *ConnWriter) Destroy() {
+// Destroy destroy connection writer and close tcp listener.
+func (c *connWriter) Destroy() {
 	if c.innerWriter != nil {
 		c.innerWriter.Close()
 	}
 }
 
-func (c *ConnWriter) connect() error {
+func (c *connWriter) connect() error {
 	if c.innerWriter != nil {
 		c.innerWriter.Close()
 		c.innerWriter = nil
@@ -94,11 +95,11 @@ func (c *ConnWriter) connect() error {
 	}
 
 	c.innerWriter = conn
-	c.lg = log.New(conn, "", log.Ldate|log.Ltime)
+	c.lg = newLogWriter(conn)
 	return nil
 }
 
-func (c *ConnWriter) neddedConnectOnMsg() bool {
+func (c *connWriter) needToConnectOnMsg() bool {
 	if c.Reconnect {
 		c.Reconnect = false
 		return true
@@ -112,5 +113,5 @@ func (c *ConnWriter) neddedConnectOnMsg() bool {
 }
 
 func init() {
-	Register("conn", NewConn)
+	Register(AdapterConn, NewConn)
 }