// +build !windows
 
 package main
 
 import (
 	"bufio"

 	"bytes"

 	"fmt"
 	"io/ioutil"
 	"os"
 	"os/exec"

 	"strings"
 	"time"

 	"unicode"
 

 	"github.com/docker/docker/integration-cli/checker"

 	"github.com/docker/docker/integration-cli/cli/build"

 	"github.com/go-check/check"

 	"github.com/kr/pty"

 	"golang.org/x/sys/unix"

 )
 
 // #5979

 func (s *DockerSuite) TestEventsRedirectStdout(c *check.C) {

 	since := daemonUnixTime(c)

 	dockerCmd(c, "run", "busybox", "true")

 
 	file, err := ioutil.TempFile("", "")

 	c.Assert(err, checker.IsNil, check.Commentf("could not create temp file"))

 	defer os.Remove(file.Name())
 

 	command := fmt.Sprintf("%s events --since=%s --until=%s > %s", dockerBinary, since, daemonUnixTime(c), file.Name())

 	_, tty, err := pty.Open()

 	c.Assert(err, checker.IsNil, check.Commentf("Could not open pty"))

 	cmd := exec.Command("sh", "-c", command)
 	cmd.Stdin = tty
 	cmd.Stdout = tty
 	cmd.Stderr = tty

 	c.Assert(cmd.Run(), checker.IsNil, check.Commentf("run err for command %q", command))

 
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {

 		for _, ch := range scanner.Text() {

 			c.Assert(unicode.IsControl(ch), checker.False, check.Commentf("found control character %v", []byte(string(ch))))

 		}
 	}

 	c.Assert(scanner.Err(), checker.IsNil, check.Commentf("Scan err for command %q", command))

 
 }

 
 func (s *DockerSuite) TestEventsOOMDisableFalse(c *check.C) {

 	testRequires(c, DaemonIsLinux, oomControl, memoryLimitSupport, swapMemorySupport)

 
 	errChan := make(chan error)
 	go func() {
 		defer close(errChan)
 		out, exitCode, _ := dockerCmdWithError("run", "--name", "oomFalse", "-m", "10MB", "busybox", "sh", "-c", "x=a; while true; do x=$x$x$x$x; done")
 		if expected := 137; exitCode != expected {
 			errChan <- fmt.Errorf("wrong exit code for OOM container: expected %d, got %d (output: %q)", expected, exitCode, out)
 		}
 	}()
 	select {
 	case err := <-errChan:

 		c.Assert(err, checker.IsNil)

 	case <-time.After(30 * time.Second):
 		c.Fatal("Timeout waiting for container to die on OOM")
 	}
 

 	out, _ := dockerCmd(c, "events", "--since=0", "-f", "container=oomFalse", "--until", daemonUnixTime(c))

 	events := strings.Split(strings.TrimSuffix(out, "\n"), "\n")

 	nEvents := len(events)
 
 	c.Assert(nEvents, checker.GreaterOrEqualThan, 5) //Missing expected event
 	c.Assert(parseEventAction(c, events[nEvents-5]), checker.Equals, "create")
 	c.Assert(parseEventAction(c, events[nEvents-4]), checker.Equals, "attach")
 	c.Assert(parseEventAction(c, events[nEvents-3]), checker.Equals, "start")
 	c.Assert(parseEventAction(c, events[nEvents-2]), checker.Equals, "oom")
 	c.Assert(parseEventAction(c, events[nEvents-1]), checker.Equals, "die")

 }
 
 func (s *DockerSuite) TestEventsOOMDisableTrue(c *check.C) {

 	testRequires(c, DaemonIsLinux, oomControl, memoryLimitSupport, NotArm, swapMemorySupport)

 
 	errChan := make(chan error)

 	observer, err := newEventObserver(c)
 	c.Assert(err, checker.IsNil)
 	err = observer.Start()
 	c.Assert(err, checker.IsNil)
 	defer observer.Stop()
 

 	go func() {
 		defer close(errChan)
 		out, exitCode, _ := dockerCmdWithError("run", "--oom-kill-disable=true", "--name", "oomTrue", "-m", "10MB", "busybox", "sh", "-c", "x=a; while true; do x=$x$x$x$x; done")
 		if expected := 137; exitCode != expected {
 			errChan <- fmt.Errorf("wrong exit code for OOM container: expected %d, got %d (output: %q)", expected, exitCode, out)
 		}
 	}()
 

 	c.Assert(waitRun("oomTrue"), checker.IsNil)

 	defer dockerCmdWithResult("kill", "oomTrue")

 	containerID := inspectField(c, "oomTrue", "Id")

 	testActions := map[string]chan bool{
 		"oom": make(chan bool),
 	}

 	matcher := matchEventLine(containerID, "container", testActions)
 	processor := processEventMatch(testActions)
 	go observer.Match(matcher, processor)
 
 	select {
 	case <-time.After(20 * time.Second):
 		observer.CheckEventError(c, containerID, "oom", matcher)
 	case <-testActions["oom"]:

 	// ignore, done

 	case errRun := <-errChan:
 		if errRun != nil {
 			c.Fatalf("%v", errRun)
 		} else {
 			c.Fatalf("container should be still running but it's not")
 		}

 	}

 	status := inspectField(c, "oomTrue", "State.Status")

 	c.Assert(strings.TrimSpace(status), checker.Equals, "running", check.Commentf("container should be still running"))

 }

 
 // #18453

 func (s *DockerSuite) TestEventsContainerFilterByName(c *check.C) {

 	testRequires(c, DaemonIsLinux)

 	cOut, _ := dockerCmd(c, "run", "--name=foo", "-d", "busybox", "top")
 	c1 := strings.TrimSpace(cOut)
 	waitRun("foo")
 	cOut, _ = dockerCmd(c, "run", "--name=bar", "-d", "busybox", "top")
 	c2 := strings.TrimSpace(cOut)
 	waitRun("bar")

 	out, _ := dockerCmd(c, "events", "-f", "container=foo", "--since=0", "--until", daemonUnixTime(c))

 	c.Assert(out, checker.Contains, c1, check.Commentf(out))
 	c.Assert(out, checker.Not(checker.Contains), c2, check.Commentf(out))

 }
 
 // #18453
 func (s *DockerSuite) TestEventsContainerFilterBeforeCreate(c *check.C) {
 	testRequires(c, DaemonIsLinux)

 	buf := &bytes.Buffer{}
 	cmd := exec.Command(dockerBinary, "events", "-f", "container=foo", "--since=0")
 	cmd.Stdout = buf
 	c.Assert(cmd.Start(), check.IsNil)
 	defer cmd.Wait()
 	defer cmd.Process.Kill()
 
 	// Sleep for a second to make sure we are testing the case where events are listened before container starts.
 	time.Sleep(time.Second)
 	id, _ := dockerCmd(c, "run", "--name=foo", "-d", "busybox", "top")

 	cID := strings.TrimSpace(id)

 	for i := 0; ; i++ {
 		out := buf.String()
 		if strings.Contains(out, cID) {
 			break
 		}
 		if i > 30 {
 			c.Fatalf("Missing event of container (foo, %v), got %q", cID, out)
 		}
 		time.Sleep(500 * time.Millisecond)
 	}

 }

 
 func (s *DockerSuite) TestVolumeEvents(c *check.C) {
 	testRequires(c, DaemonIsLinux)
 

 	since := daemonUnixTime(c)

 
 	// Observe create/mount volume actions

 	dockerCmd(c, "volume", "create", "test-event-volume-local")

 	dockerCmd(c, "run", "--name", "test-volume-container", "--volume", "test-event-volume-local:/foo", "-d", "busybox", "true")
 	waitRun("test-volume-container")
 
 	// Observe unmount/destroy volume actions
 	dockerCmd(c, "rm", "-f", "test-volume-container")
 	dockerCmd(c, "volume", "rm", "test-event-volume-local")
 

 	until := daemonUnixTime(c)
 	out, _ := dockerCmd(c, "events", "--since", since, "--until", until)

 	events := strings.Split(strings.TrimSpace(out), "\n")
 	c.Assert(len(events), checker.GreaterThan, 4)
 
 	volumeEvents := eventActionsByIDAndType(c, events, "test-event-volume-local", "volume")
 	c.Assert(volumeEvents, checker.HasLen, 4)
 	c.Assert(volumeEvents[0], checker.Equals, "create")
 	c.Assert(volumeEvents[1], checker.Equals, "mount")
 	c.Assert(volumeEvents[2], checker.Equals, "unmount")
 	c.Assert(volumeEvents[3], checker.Equals, "destroy")
 }

 
 func (s *DockerSuite) TestNetworkEvents(c *check.C) {
 	testRequires(c, DaemonIsLinux)
 

 	since := daemonUnixTime(c)

 
 	// Observe create/connect network actions
 	dockerCmd(c, "network", "create", "test-event-network-local")
 	dockerCmd(c, "run", "--name", "test-network-container", "--net", "test-event-network-local", "-d", "busybox", "true")
 	waitRun("test-network-container")
 
 	// Observe disconnect/destroy network actions
 	dockerCmd(c, "rm", "-f", "test-network-container")
 	dockerCmd(c, "network", "rm", "test-event-network-local")
 

 	until := daemonUnixTime(c)
 	out, _ := dockerCmd(c, "events", "--since", since, "--until", until)

 	events := strings.Split(strings.TrimSpace(out), "\n")
 	c.Assert(len(events), checker.GreaterThan, 4)
 
 	netEvents := eventActionsByIDAndType(c, events, "test-event-network-local", "network")
 	c.Assert(netEvents, checker.HasLen, 4)
 	c.Assert(netEvents[0], checker.Equals, "create")
 	c.Assert(netEvents[1], checker.Equals, "connect")
 	c.Assert(netEvents[2], checker.Equals, "disconnect")
 	c.Assert(netEvents[3], checker.Equals, "destroy")
 }

 func (s *DockerSuite) TestEventsContainerWithMultiNetwork(c *check.C) {
 	testRequires(c, DaemonIsLinux)
 
 	// Observe create/connect network actions
 	dockerCmd(c, "network", "create", "test-event-network-local-1")
 	dockerCmd(c, "network", "create", "test-event-network-local-2")
 	dockerCmd(c, "run", "--name", "test-network-container", "--net", "test-event-network-local-1", "-td", "busybox", "sh")
 	waitRun("test-network-container")
 	dockerCmd(c, "network", "connect", "test-event-network-local-2", "test-network-container")
 
 	since := daemonUnixTime(c)
 
 	dockerCmd(c, "stop", "-t", "1", "test-network-container")
 
 	until := daemonUnixTime(c)
 	out, _ := dockerCmd(c, "events", "--since", since, "--until", until, "-f", "type=network")
 	netEvents := strings.Split(strings.TrimSpace(out), "\n")
 

 	// received two network disconnect events

 	c.Assert(len(netEvents), checker.Equals, 2)
 	c.Assert(netEvents[0], checker.Contains, "disconnect")
 	c.Assert(netEvents[1], checker.Contains, "disconnect")

 
 	//both networks appeared in the network event output
 	c.Assert(out, checker.Contains, "test-event-network-local-1")
 	c.Assert(out, checker.Contains, "test-event-network-local-2")

 }
 

 func (s *DockerSuite) TestEventsStreaming(c *check.C) {
 	testRequires(c, DaemonIsLinux)
 
 	observer, err := newEventObserver(c)
 	c.Assert(err, checker.IsNil)
 	err = observer.Start()
 	c.Assert(err, checker.IsNil)
 	defer observer.Stop()
 
 	out, _ := dockerCmd(c, "run", "-d", "busybox:latest", "true")
 	containerID := strings.TrimSpace(out)
 
 	testActions := map[string]chan bool{

 		"create":  make(chan bool, 1),
 		"start":   make(chan bool, 1),
 		"die":     make(chan bool, 1),
 		"destroy": make(chan bool, 1),

 	}
 
 	matcher := matchEventLine(containerID, "container", testActions)

 	processor := processEventMatch(testActions)
 	go observer.Match(matcher, processor)

 
 	select {
 	case <-time.After(5 * time.Second):
 		observer.CheckEventError(c, containerID, "create", matcher)
 	case <-testActions["create"]:
 		// ignore, done
 	}
 
 	select {
 	case <-time.After(5 * time.Second):
 		observer.CheckEventError(c, containerID, "start", matcher)
 	case <-testActions["start"]:
 		// ignore, done
 	}
 
 	select {
 	case <-time.After(5 * time.Second):
 		observer.CheckEventError(c, containerID, "die", matcher)
 	case <-testActions["die"]:
 		// ignore, done
 	}
 
 	dockerCmd(c, "rm", containerID)
 
 	select {
 	case <-time.After(5 * time.Second):
 		observer.CheckEventError(c, containerID, "destroy", matcher)
 	case <-testActions["destroy"]:
 		// ignore, done
 	}
 }
 
 func (s *DockerSuite) TestEventsImageUntagDelete(c *check.C) {
 	testRequires(c, DaemonIsLinux)
 
 	observer, err := newEventObserver(c)
 	c.Assert(err, checker.IsNil)
 	err = observer.Start()
 	c.Assert(err, checker.IsNil)
 	defer observer.Stop()
 
 	name := "testimageevents"

 	buildImageSuccessfully(c, name, build.WithDockerfile(`FROM scratch

 		MAINTAINER "docker"`))
 	imageID := getIDByName(c, name)

 	c.Assert(deleteImages(name), checker.IsNil)
 
 	testActions := map[string]chan bool{

 		"untag":  make(chan bool, 1),
 		"delete": make(chan bool, 1),

 	}
 
 	matcher := matchEventLine(imageID, "image", testActions)

 	processor := processEventMatch(testActions)
 	go observer.Match(matcher, processor)

 
 	select {
 	case <-time.After(10 * time.Second):
 		observer.CheckEventError(c, imageID, "untag", matcher)
 	case <-testActions["untag"]:
 		// ignore, done
 	}
 
 	select {
 	case <-time.After(10 * time.Second):
 		observer.CheckEventError(c, imageID, "delete", matcher)
 	case <-testActions["delete"]:
 		// ignore, done
 	}
 }
 
 func (s *DockerSuite) TestEventsFilterVolumeAndNetworkType(c *check.C) {
 	testRequires(c, DaemonIsLinux)
 

 	since := daemonUnixTime(c)

 
 	dockerCmd(c, "network", "create", "test-event-network-type")

 	dockerCmd(c, "volume", "create", "test-event-volume-type")

 	out, _ := dockerCmd(c, "events", "--filter", "type=volume", "--filter", "type=network", "--since", since, "--until", daemonUnixTime(c))

 	events := strings.Split(strings.TrimSpace(out), "\n")
 	c.Assert(len(events), checker.GreaterOrEqualThan, 2, check.Commentf(out))
 
 	networkActions := eventActionsByIDAndType(c, events, "test-event-network-type", "network")
 	volumeActions := eventActionsByIDAndType(c, events, "test-event-volume-type", "volume")
 
 	c.Assert(volumeActions[0], checker.Equals, "create")
 	c.Assert(networkActions[0], checker.Equals, "create")
 }
 
 func (s *DockerSuite) TestEventsFilterVolumeID(c *check.C) {
 	testRequires(c, DaemonIsLinux)
 

 	since := daemonUnixTime(c)

 	dockerCmd(c, "volume", "create", "test-event-volume-id")

 	out, _ := dockerCmd(c, "events", "--filter", "volume=test-event-volume-id", "--since", since, "--until", daemonUnixTime(c))

 	events := strings.Split(strings.TrimSpace(out), "\n")
 	c.Assert(events, checker.HasLen, 1)
 
 	c.Assert(events[0], checker.Contains, "test-event-volume-id")
 	c.Assert(events[0], checker.Contains, "driver=local")
 }
 
 func (s *DockerSuite) TestEventsFilterNetworkID(c *check.C) {
 	testRequires(c, DaemonIsLinux)
 

 	since := daemonUnixTime(c)

 
 	dockerCmd(c, "network", "create", "test-event-network-local")

 	out, _ := dockerCmd(c, "events", "--filter", "network=test-event-network-local", "--since", since, "--until", daemonUnixTime(c))

 	events := strings.Split(strings.TrimSpace(out), "\n")
 	c.Assert(events, checker.HasLen, 1)
 
 	c.Assert(events[0], checker.Contains, "test-event-network-local")
 	c.Assert(events[0], checker.Contains, "type=bridge")
 }

 
 func (s *DockerDaemonSuite) TestDaemonEvents(c *check.C) {
 	testRequires(c, SameHostDaemon, DaemonIsLinux)
 
 	// daemon config file
 	configFilePath := "test.json"
 	configFile, err := os.Create(configFilePath)
 	c.Assert(err, checker.IsNil)
 	defer os.Remove(configFilePath)
 
 	daemonConfig := `{"labels":["foo=bar"]}`
 	fmt.Fprintf(configFile, "%s", daemonConfig)
 	configFile.Close()

 	s.d.Start(c, fmt.Sprintf("--config-file=%s", configFilePath))

 
 	// Get daemon ID
 	out, err := s.d.Cmd("info")
 	c.Assert(err, checker.IsNil)
 	daemonID := ""

 	daemonName := ""

 	for _, line := range strings.Split(out, "\n") {
 		if strings.HasPrefix(line, "ID: ") {
 			daemonID = strings.TrimPrefix(line, "ID: ")

 		} else if strings.HasPrefix(line, "Name: ") {
 			daemonName = strings.TrimPrefix(line, "Name: ")

 		}
 	}
 	c.Assert(daemonID, checker.Not(checker.Equals), "")
 
 	configFile, err = os.Create(configFilePath)
 	c.Assert(err, checker.IsNil)

 	daemonConfig = `{"max-concurrent-downloads":1,"labels":["bar=foo"], "shutdown-timeout": 10}`

 	fmt.Fprintf(configFile, "%s", daemonConfig)
 	configFile.Close()
 

 	c.Assert(s.d.Signal(unix.SIGHUP), checker.IsNil)

 
 	time.Sleep(3 * time.Second)
 
 	out, err = s.d.Cmd("events", "--since=0", "--until", daemonUnixTime(c))
 	c.Assert(err, checker.IsNil)

 	// only check for values known (daemon ID/name) or explicitly set above,
 	// otherwise just check for names being present.
 	expectedSubstrings := []string{
 		" daemon reload " + daemonID + " ",
 		"(allow-nondistributable-artifacts=[",
 		" cluster-advertise=, ",
 		" cluster-store=, ",
 		" cluster-store-opts={",
 		" debug=true, ",
 		" default-ipc-mode=",
 		" default-runtime=",
 		" default-shm-size=",
 		" insecure-registries=[",
 		" labels=[\"bar=foo\"], ",
 		" live-restore=",
 		" max-concurrent-downloads=1, ",
 		" max-concurrent-uploads=5, ",
 		" name=" + daemonName,
 		" registry-mirrors=[",
 		" runtimes=",
 		" shutdown-timeout=10)",
 	}
 
 	for _, s := range expectedSubstrings {
 		c.Assert(out, checker.Contains, s)
 	}

 }
 
 func (s *DockerDaemonSuite) TestDaemonEventsWithFilters(c *check.C) {
 	testRequires(c, SameHostDaemon, DaemonIsLinux)
 
 	// daemon config file
 	configFilePath := "test.json"
 	configFile, err := os.Create(configFilePath)
 	c.Assert(err, checker.IsNil)
 	defer os.Remove(configFilePath)
 
 	daemonConfig := `{"labels":["foo=bar"]}`
 	fmt.Fprintf(configFile, "%s", daemonConfig)
 	configFile.Close()

 	s.d.Start(c, fmt.Sprintf("--config-file=%s", configFilePath))

 
 	// Get daemon ID
 	out, err := s.d.Cmd("info")
 	c.Assert(err, checker.IsNil)
 	daemonID := ""
 	daemonName := ""
 	for _, line := range strings.Split(out, "\n") {
 		if strings.HasPrefix(line, "ID: ") {
 			daemonID = strings.TrimPrefix(line, "ID: ")
 		} else if strings.HasPrefix(line, "Name: ") {
 			daemonName = strings.TrimPrefix(line, "Name: ")
 		}
 	}
 	c.Assert(daemonID, checker.Not(checker.Equals), "")
 

 	c.Assert(s.d.Signal(unix.SIGHUP), checker.IsNil)

 
 	time.Sleep(3 * time.Second)
 
 	out, err = s.d.Cmd("events", "--since=0", "--until", daemonUnixTime(c), "--filter", fmt.Sprintf("daemon=%s", daemonID))
 	c.Assert(err, checker.IsNil)
 	c.Assert(out, checker.Contains, fmt.Sprintf("daemon reload %s", daemonID))
 
 	out, err = s.d.Cmd("events", "--since=0", "--until", daemonUnixTime(c), "--filter", fmt.Sprintf("daemon=%s", daemonName))
 	c.Assert(err, checker.IsNil)
 	c.Assert(out, checker.Contains, fmt.Sprintf("daemon reload %s", daemonID))
 
 	out, err = s.d.Cmd("events", "--since=0", "--until", daemonUnixTime(c), "--filter", "daemon=foo")
 	c.Assert(err, checker.IsNil)
 	c.Assert(out, checker.Not(checker.Contains), fmt.Sprintf("daemon reload %s", daemonID))
 
 	out, err = s.d.Cmd("events", "--since=0", "--until", daemonUnixTime(c), "--filter", "type=daemon")
 	c.Assert(err, checker.IsNil)
 	c.Assert(out, checker.Contains, fmt.Sprintf("daemon reload %s", daemonID))
 
 	out, err = s.d.Cmd("events", "--since=0", "--until", daemonUnixTime(c), "--filter", "type=container")
 	c.Assert(err, checker.IsNil)
 	c.Assert(out, checker.Not(checker.Contains), fmt.Sprintf("daemon reload %s", daemonID))

 }