health: add more ci cases and fix bugs

Makefile

@@ -34,7 +34,7 @@ gotest:
 	go test -v --cover ./utils/...
 
 ci:
-	go test -count=1 -v ./tests/...
+	go test -count=1 -p=1 -v ./tests/...
 
 alltest: gotest ci
 	

client/proxy_wrapper.go

@@ -10,6 +10,8 @@ import (
 	"github.com/fatedier/frp/models/msg"
 	"github.com/fatedier/frp/utils/log"
 	frpNet "github.com/fatedier/frp/utils/net"
+
+	"github.com/fatedier/golib/errors"
 )
 
 const (
@@ -55,6 +57,7 @@ type ProxyWrapper struct {
 	lastSendStartMsg time.Time
 	lastStartErr     time.Time
 	closeCh          chan struct{}
+	healthNotifyCh   chan struct{}
 	mu               sync.RWMutex
 
 	log.Logger
@@ -69,9 +72,10 @@ func NewProxyWrapper(cfg config.ProxyConf, eventHandler EventHandler, logPrefix
 			Status: ProxyStatusNew,
 			Cfg:    cfg,
 		},
-		closeCh: make(chan struct{}),
-		handler: eventHandler,
-		Logger:  log.NewPrefixLogger(logPrefix),
+		closeCh:        make(chan struct{}),
+		healthNotifyCh: make(chan struct{}),
+		handler:        eventHandler,
+		Logger:         log.NewPrefixLogger(logPrefix),
 	}
 	pw.AddLogPrefix(pw.Name)
 
@@ -125,6 +129,8 @@ func (pw *ProxyWrapper) Start() {
 func (pw *ProxyWrapper) Stop() {
 	pw.mu.Lock()
 	defer pw.mu.Unlock()
+	close(pw.closeCh)
+	close(pw.healthNotifyCh)
 	pw.pxy.Close()
 	if pw.monitor != nil {
 		pw.monitor.Stop()
@@ -139,6 +145,10 @@ func (pw *ProxyWrapper) Stop() {
 }
 
 func (pw *ProxyWrapper) checkWorker() {
+	if pw.monitor != nil {
+		// let monitor do check request first
+		time.Sleep(500 * time.Millisecond)
+	}
 	for {
 		// check proxy status
 		now := time.Now()
@@ -178,17 +188,30 @@ func (pw *ProxyWrapper) checkWorker() {
 		case <-pw.closeCh:
 			return
 		case <-time.After(statusCheckInterval):
+		case <-pw.healthNotifyCh:
 		}
 	}
 }
 
 func (pw *ProxyWrapper) statusNormalCallback() {
 	atomic.StoreUint32(&pw.health, 0)
+	errors.PanicToError(func() {
+		select {
+		case pw.healthNotifyCh <- struct{}{}:
+		default:
+		}
+	})
 	pw.Info("health check success")
 }
 
 func (pw *ProxyWrapper) statusFailedCallback() {
 	atomic.StoreUint32(&pw.health, 1)
+	errors.PanicToError(func() {
+		select {
+		case pw.healthNotifyCh <- struct{}{}:
+		default:
+		}
+	})
 	pw.Info("health check failed")
 }
 

cmd/frpc/sub/root.go

@@ -166,6 +166,11 @@ func parseClientCommonCfgFromCmd() (err error) {
 	g.GlbClientCfg.LogLevel = logLevel
 	g.GlbClientCfg.LogFile = logFile
 	g.GlbClientCfg.LogMaxDays = int64(logMaxDays)
+	if logFile == "console" {
+		g.GlbClientCfg.LogWay = "console"
+	} else {
+		g.GlbClientCfg.LogWay = "file"
+	}
 	return nil
 }
 

cmd/frps/root.go

@@ -52,7 +52,6 @@ var (
 	dashboardPwd      string
 	assetsDir         string
 	logFile           string
-	logWay            string
 	logLevel          string
 	logMaxDays        int64
 	token             string
@@ -81,7 +80,6 @@ func init() {
 	rootCmd.PersistentFlags().StringVarP(&dashboardUser, "dashboard_user", "", "admin", "dashboard user")
 	rootCmd.PersistentFlags().StringVarP(&dashboardPwd, "dashboard_pwd", "", "admin", "dashboard password")
 	rootCmd.PersistentFlags().StringVarP(&logFile, "log_file", "", "console", "log file")
-	rootCmd.PersistentFlags().StringVarP(&logWay, "log_way", "", "console", "log way")
 	rootCmd.PersistentFlags().StringVarP(&logLevel, "log_level", "", "info", "log level")
 	rootCmd.PersistentFlags().Int64VarP(&logMaxDays, "log_max_days", "", 3, "log_max_days")
 	rootCmd.PersistentFlags().StringVarP(&token, "token", "t", "", "auth token")
@@ -175,7 +173,6 @@ func parseServerCommonCfgFromCmd() (err error) {
 	g.GlbServerCfg.DashboardUser = dashboardUser
 	g.GlbServerCfg.DashboardPwd = dashboardPwd
 	g.GlbServerCfg.LogFile = logFile
-	g.GlbServerCfg.LogWay = logWay
 	g.GlbServerCfg.LogLevel = logLevel
 	g.GlbServerCfg.LogMaxDays = logMaxDays
 	g.GlbServerCfg.Token = token
@@ -194,6 +191,12 @@ func parseServerCommonCfgFromCmd() (err error) {
 		}
 	}
 	g.GlbServerCfg.MaxPortsPerClient = maxPortsPerClient
+
+	if logFile == "console" {
+		g.GlbClientCfg.LogWay = "console"
+	} else {
+		g.GlbClientCfg.LogWay = "file"
+	}
 	return
 }
 

conf/frpc_full.ini

@@ -77,6 +77,8 @@ group_key = 123456
 # frpc will connect local service's port to detect it's healthy status
 health_check_type = tcp
 health_check_interval_s = 10
+health_check_max_failed = 1
+health_check_timeout_s = 3
 
 [ssh_random]
 type = tcp

models/config/proxy.go

@@ -174,6 +174,13 @@ func (cfg *BaseProxyConf) UnmarshalFromIni(prefix string, name string, section i
 	if cfg.HealthCheckType == "tcp" && cfg.Plugin == "" {
 		cfg.HealthCheckAddr = cfg.LocalIp + fmt.Sprintf(":%d", cfg.LocalPort)
 	}
+	if cfg.HealthCheckType == "http" && cfg.Plugin == "" && cfg.HealthCheckUrl != "" {
+		s := fmt.Sprintf("http://%s:%d", cfg.LocalIp, cfg.LocalPort)
+		if !strings.HasPrefix(cfg.HealthCheckUrl, "/") {
+			s += "/"
+		}
+		cfg.HealthCheckUrl = s + cfg.HealthCheckUrl
+	}
 	return nil
 }
 

tests/ci/health/health_test.go

@@ -0,0 +1,247 @@
+package health
+
+import (
+	"net/http"
+	"os"
+	"strings"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/fatedier/frp/tests/config"
+	"github.com/fatedier/frp/tests/consts"
+	"github.com/fatedier/frp/tests/mock"
+	"github.com/fatedier/frp/tests/util"
+
+	"github.com/stretchr/testify/assert"
+)
+
+const FRPS_CONF = `
+[common]
+bind_addr = 0.0.0.0
+bind_port = 14000
+vhost_http_port = 14000
+log_file = console
+log_level = debug
+token = 123456
+`
+
+const FRPC_CONF = `
+[common]
+server_addr = 127.0.0.1
+server_port = 14000
+log_file = console
+log_level = debug
+token = 123456
+
+[tcp1]
+type = tcp
+local_port = 15001
+remote_port = 15000
+group = test
+group_key = 123
+health_check_type = tcp
+health_check_interval_s = 1
+
+[tcp2]
+type = tcp
+local_port = 15002
+remote_port = 15000
+group = test
+group_key = 123
+health_check_type = tcp
+health_check_interval_s = 1
+
+[http1]
+type = http
+local_port = 15003
+custom_domains = test1.com
+health_check_type = http
+health_check_interval_s = 1
+health_check_url = /health
+
+[http2]
+type = http
+local_port = 15004
+custom_domains = test2.com
+health_check_type = http
+health_check_interval_s = 1
+health_check_url = /health
+`
+
+func TestHealthCheck(t *testing.T) {
+	assert := assert.New(t)
+
+	// ****** start backgroud services ******
+	echoSvc1 := mock.NewEchoServer(15001, 1, "echo1")
+	err := echoSvc1.Start()
+	if assert.NoError(err) {
+		defer echoSvc1.Stop()
+	}
+
+	echoSvc2 := mock.NewEchoServer(15002, 1, "echo2")
+	err = echoSvc2.Start()
+	if assert.NoError(err) {
+		defer echoSvc2.Stop()
+	}
+
+	var healthMu sync.RWMutex
+	svc1Health := true
+	svc2Health := true
+	httpSvc1 := mock.NewHttpServer(15003, func(w http.ResponseWriter, r *http.Request) {
+		if strings.Contains(r.URL.Path, "health") {
+			healthMu.RLock()
+			defer healthMu.RUnlock()
+			if svc1Health {
+				w.WriteHeader(200)
+			} else {
+				w.WriteHeader(500)
+			}
+		} else {
+			w.Write([]byte("http1"))
+		}
+	})
+	err = httpSvc1.Start()
+	if assert.NoError(err) {
+		defer httpSvc1.Stop()
+	}
+
+	httpSvc2 := mock.NewHttpServer(15004, func(w http.ResponseWriter, r *http.Request) {
+		if strings.Contains(r.URL.Path, "health") {
+			healthMu.RLock()
+			defer healthMu.RUnlock()
+			if svc2Health {
+				w.WriteHeader(200)
+			} else {
+				w.WriteHeader(500)
+			}
+		} else {
+			w.Write([]byte("http2"))
+		}
+	})
+	err = httpSvc2.Start()
+	if assert.NoError(err) {
+		defer httpSvc2.Stop()
+	}
+
+	time.Sleep(200 * time.Millisecond)
+
+	// ****** start frps and frpc ******
+	frpsCfgPath, err := config.GenerateConfigFile(consts.FRPS_NORMAL_CONFIG, FRPS_CONF)
+	if assert.NoError(err) {
+		defer os.Remove(frpsCfgPath)
+	}
+
+	frpcCfgPath, err := config.GenerateConfigFile(consts.FRPC_NORMAL_CONFIG, FRPC_CONF)
+	if assert.NoError(err) {
+		defer os.Remove(frpcCfgPath)
+	}
+
+	frpsProcess := util.NewProcess(consts.FRPS_SUB_BIN_PATH, []string{"-c", frpsCfgPath})
+	err = frpsProcess.Start()
+	if assert.NoError(err) {
+		defer frpsProcess.Stop()
+	}
+
+	time.Sleep(100 * time.Millisecond)
+
+	frpcProcess := util.NewProcess(consts.FRPC_SUB_BIN_PATH, []string{"-c", frpcCfgPath})
+	err = frpcProcess.Start()
+	if assert.NoError(err) {
+		defer frpcProcess.Stop()
+	}
+	time.Sleep(1000 * time.Millisecond)
+
+	// ****** healcheck type tcp ******
+	// echo1 and echo2 is ok
+	result := make([]string, 0)
+	res, err := util.SendTcpMsg("127.0.0.1:15000", "echo")
+	assert.NoError(err)
+	result = append(result, res)
+
+	res, err = util.SendTcpMsg("127.0.0.1:15000", "echo")
+	assert.NoError(err)
+	result = append(result, res)
+
+	assert.Contains(result, "echo1")
+	assert.Contains(result, "echo2")
+
+	// close echo2 server, echo1 is work
+	echoSvc2.Stop()
+	time.Sleep(1200 * time.Millisecond)
+
+	result = make([]string, 0)
+	res, err = util.SendTcpMsg("127.0.0.1:15000", "echo")
+	assert.NoError(err)
+	result = append(result, res)
+
+	res, err = util.SendTcpMsg("127.0.0.1:15000", "echo")
+	assert.NoError(err)
+	result = append(result, res)
+
+	assert.NotContains(result, "echo2")
+
+	// resume echo2 server, all services are ok
+	echoSvc2 = mock.NewEchoServer(15002, 1, "echo2")
+	err = echoSvc2.Start()
+	if assert.NoError(err) {
+		defer echoSvc2.Stop()
+	}
+
+	time.Sleep(1200 * time.Millisecond)
+
+	result = make([]string, 0)
+	res, err = util.SendTcpMsg("127.0.0.1:15000", "echo")
+	assert.NoError(err)
+	result = append(result, res)
+
+	res, err = util.SendTcpMsg("127.0.0.1:15000", "echo")
+	assert.NoError(err)
+	result = append(result, res)
+
+	assert.Contains(result, "echo1")
+	assert.Contains(result, "echo2")
+
+	// ****** healcheck type http ******
+	// http1 and http2 is ok
+	code, body, _, err := util.SendHttpMsg("GET", "http://127.0.0.1:14000/xxx", "test1.com", nil, "")
+	assert.NoError(err)
+	assert.Equal(200, code)
+	assert.Equal("http1", body)
+
+	code, body, _, err = util.SendHttpMsg("GET", "http://127.0.0.1:14000/xxx", "test2.com", nil, "")
+	assert.NoError(err)
+	assert.Equal(200, code)
+	assert.Equal("http2", body)
+
+	// http2 health check error
+	healthMu.Lock()
+	svc2Health = false
+	healthMu.Unlock()
+	time.Sleep(1200 * time.Millisecond)
+
+	code, body, _, err = util.SendHttpMsg("GET", "http://127.0.0.1:14000/xxx", "test1.com", nil, "")
+	assert.NoError(err)
+	assert.Equal(200, code)
+	assert.Equal("http1", body)
+
+	code, _, _, err = util.SendHttpMsg("GET", "http://127.0.0.1:14000/xxx", "test2.com", nil, "")
+	assert.NoError(err)
+	assert.Equal(404, code)
+
+	// resume http2 service, http1 and http2 are ok
+	healthMu.Lock()
+	svc2Health = true
+	healthMu.Unlock()
+	time.Sleep(1200 * time.Millisecond)
+
+	code, body, _, err = util.SendHttpMsg("GET", "http://127.0.0.1:14000/xxx", "test1.com", nil, "")
+	assert.NoError(err)
+	assert.Equal(200, code)
+	assert.Equal("http1", body)
+
+	code, body, _, err = util.SendHttpMsg("GET", "http://127.0.0.1:14000/xxx", "test2.com", nil, "")
+	assert.NoError(err)
+	assert.Equal(200, code)
+	assert.Equal("http2", body)
+}

tests/ci/normal_test.go

@@ -22,13 +22,21 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	go mock.StartTcpEchoServer(consts.TEST_TCP_PORT)
-	go mock.StartTcpEchoServer2(consts.TEST_TCP2_PORT)
+	var err error
+	tcpEcho1 := mock.NewEchoServer(consts.TEST_TCP_PORT, 1, "")
+	tcpEcho2 := mock.NewEchoServer(consts.TEST_TCP2_PORT, 2, "")
+
+	if err = tcpEcho1.Start(); err != nil {
+		panic(err)
+	}
+	if err = tcpEcho2.Start(); err != nil {
+		panic(err)
+	}
+
 	go mock.StartUdpEchoServer(consts.TEST_UDP_PORT)
 	go mock.StartUnixDomainServer(consts.TEST_UNIX_DOMAIN_ADDR)
 	go mock.StartHttpServer(consts.TEST_HTTP_PORT)
 
-	var err error
 	p1 := util.NewProcess(consts.FRPS_BIN_PATH, []string{"-c", "./auto_test_frps.ini"})
 	if err = p1.Start(); err != nil {
 		panic(err)

tests/ci/reconnect_test.go

@@ -17,7 +17,6 @@ const FRPS_RECONNECT_CONF = `
 bind_addr = 0.0.0.0
 bind_port = 20000
 log_file = console
-# debug, info, warn, error
 log_level = debug
 token = 123456
 `
@@ -27,7 +26,6 @@ const FRPC_RECONNECT_CONF = `
 server_addr = 127.0.0.1
 server_port = 20000
 log_file = console
-# debug, info, warn, error
 log_level = debug
 token = 123456
 admin_port = 21000

tests/ci/reload_test.go

@@ -84,7 +84,8 @@ func TestReload(t *testing.T) {
 
 	frpcCfgPath, err := config.GenerateConfigFile(consts.FRPC_NORMAL_CONFIG, FRPC_RELOAD_CONF_1)
 	if assert.NoError(err) {
-		defer os.Remove(frpcCfgPath)
+		rmFile1 := frpcCfgPath
+		defer os.Remove(rmFile1)
 	}
 
 	frpsProcess := util.NewProcess(consts.FRPS_BIN_PATH, []string{"-c", frpsCfgPath})
@@ -120,7 +121,10 @@ func TestReload(t *testing.T) {
 
 	// reload frpc config
 	frpcCfgPath, err = config.GenerateConfigFile(consts.FRPC_NORMAL_CONFIG, FRPC_RELOAD_CONF_2)
-	assert.NoError(err)
+	if assert.NoError(err) {
+		rmFile2 := frpcCfgPath
+		defer os.Remove(rmFile2)
+	}
 	err = util.ReloadConf("127.0.0.1:21000", "abc", "abc")
 	assert.NoError(err)
 

tests/consts/consts.go

@@ -6,6 +6,9 @@ var (
 	FRPS_BIN_PATH = "../../bin/frps"
 	FRPC_BIN_PATH = "../../bin/frpc"
 
+	FRPS_SUB_BIN_PATH = "../../../bin/frps"
+	FRPC_SUB_BIN_PATH = "../../../bin/frpc"
+
 	FRPS_NORMAL_CONFIG = "./auto_test_frps.ini"
 	FRPC_NORMAL_CONFIG = "./auto_test_frpc.ini"
 

tests/mock/echo_server.go

@@ -10,40 +10,48 @@ import (
 	frpNet "github.com/fatedier/frp/utils/net"
 )
 
-func StartTcpEchoServer(port int) {
-	l, err := frpNet.ListenTcp("127.0.0.1", port)
-	if err != nil {
-		fmt.Printf("echo server listen error: %v\n", err)
-		return
-	}
+type EchoServer struct {
+	l frpNet.Listener
 
-	for {
-		c, err := l.Accept()
-		if err != nil {
-			fmt.Printf("echo server accept error: %v\n", err)
-			return
-		}
+	port        int
+	repeatedNum int
+	specifyStr  string
+}
 
-		go echoWorker(c)
+func NewEchoServer(port int, repeatedNum int, specifyStr string) *EchoServer {
+	if repeatedNum <= 0 {
+		repeatedNum = 1
+	}
+	return &EchoServer{
+		port:        port,
+		repeatedNum: repeatedNum,
+		specifyStr:  specifyStr,
 	}
 }
 
-func StartTcpEchoServer2(port int) {
-	l, err := frpNet.ListenTcp("127.0.0.1", port)
+func (es *EchoServer) Start() error {
+	l, err := frpNet.ListenTcp("127.0.0.1", es.port)
 	if err != nil {
-		fmt.Printf("echo server2 listen error: %v\n", err)
-		return
+		fmt.Printf("echo server listen error: %v\n", err)
+		return err
 	}
+	es.l = l
 
-	for {
-		c, err := l.Accept()
-		if err != nil {
-			fmt.Printf("echo server2 accept error: %v\n", err)
-			return
+	go func() {
+		for {
+			c, err := l.Accept()
+			if err != nil {
+				return
+			}
+
+			go echoWorker(c, es.repeatedNum, es.specifyStr)
 		}
+	}()
+	return nil
+}
 
-		go echoWorker2(c)
-	}
+func (es *EchoServer) Stop() {
+	es.l.Close()
 }
 
 func StartUdpEchoServer(port int) {
@@ -60,7 +68,7 @@ func StartUdpEchoServer(port int) {
 			return
 		}
 
-		go echoWorker(c)
+		go echoWorker(c, 1, "")
 	}
 }
 
@@ -80,11 +88,11 @@ func StartUnixDomainServer(unixPath string) {
 			return
 		}
 
-		go echoWorker(c)
+		go echoWorker(c, 1, "")
 	}
 }
 
-func echoWorker(c net.Conn) {
+func echoWorker(c net.Conn, repeatedNum int, specifyStr string) {
 	buf := make([]byte, 2048)
 
 	for {
@@ -99,28 +107,14 @@ func echoWorker(c net.Conn) {
 			}
 		}
 
-		c.Write(buf[:n])
-	}
-}
-
-func echoWorker2(c net.Conn) {
-	buf := make([]byte, 2048)
-
-	for {
-		n, err := c.Read(buf)
-		if err != nil {
-			if err == io.EOF {
-				c.Close()
-				break
-			} else {
-				fmt.Printf("echo server read error: %v\n", err)
-				return
+		if specifyStr != "" {
+			c.Write([]byte(specifyStr))
+		} else {
+			var w []byte
+			for i := 0; i < repeatedNum; i++ {
+				w = append(w, buf[:n]...)
 			}
+			c.Write(w)
 		}
-
-		var w []byte
-		w = append(w, buf[:n]...)
-		w = append(w, buf[:n]...)
-		c.Write(w)
 	}
 }

tests/mock/http_server.go

@@ -3,6 +3,7 @@ package mock
 import (
 	"fmt"
 	"log"
+	"net"
 	"net/http"
 	"regexp"
 	"strings"
@@ -12,6 +13,36 @@ import (
 	"github.com/gorilla/websocket"
 )
 
+type HttpServer struct {
+	l net.Listener
+
+	port    int
+	handler http.HandlerFunc
+}
+
+func NewHttpServer(port int, handler http.HandlerFunc) *HttpServer {
+	return &HttpServer{
+		port:    port,
+		handler: handler,
+	}
+}
+
+func (hs *HttpServer) Start() error {
+	l, err := net.Listen("tcp", fmt.Sprintf("127.0.0.1:%d", hs.port))
+	if err != nil {
+		fmt.Printf("http server listen error: %v\n", err)
+		return err
+	}
+	hs.l = l
+
+	go http.Serve(l, http.HandlerFunc(hs.handler))
+	return nil
+}
+
+func (hs *HttpServer) Stop() {
+	hs.l.Close()
+}
+
 var upgrader = websocket.Upgrader{}
 
 func StartHttpServer(port int) {

tests/util/process.go

@@ -1,22 +1,29 @@
 package util
 
 import (
+	"bytes"
 	"context"
 	"os/exec"
 )
 
 type Process struct {
-	cmd    *exec.Cmd
-	cancel context.CancelFunc
+	cmd         *exec.Cmd
+	cancel      context.CancelFunc
+	errorOutput *bytes.Buffer
+
+	beforeStopHandler func()
 }
 
 func NewProcess(path string, params []string) *Process {
 	ctx, cancel := context.WithCancel(context.Background())
 	cmd := exec.CommandContext(ctx, path, params...)
-	return &Process{
+	p := &Process{
 		cmd:    cmd,
 		cancel: cancel,
 	}
+	p.errorOutput = bytes.NewBufferString("")
+	cmd.Stderr = p.errorOutput
+	return p
 }
 
 func (p *Process) Start() error {
@@ -24,6 +31,17 @@ func (p *Process) Start() error {
 }
 
 func (p *Process) Stop() error {
+	if p.beforeStopHandler != nil {
+		p.beforeStopHandler()
+	}
 	p.cancel()
 	return p.cmd.Wait()
 }
+
+func (p *Process) ErrorOutput() string {
+	return p.errorOutput.String()
+}
+
+func (p *Process) SetBeforeStopHandler(fn func()) {
+	p.beforeStopHandler = fn
+}