// +build !windows
 
 package main
 
 import (
 	"bufio"
 	"fmt"
 	"io/ioutil"
 	"os"
 	"os/exec"

 	"strings"
 	"time"

 	"unicode"
 

 	"github.com/docker/docker/pkg/integration/checker"

 	"github.com/go-check/check"

 	"github.com/kr/pty"
 )
 
 // #5979

 func (s *DockerSuite) TestEventsRedirectStdout(c *check.C) {
 	since := daemonTime(c).Unix()
 	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=%d --until=%d > %s", dockerBinary, since, daemonTime(c).Unix(), 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, NotGCCGO)

 
 	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", fmt.Sprintf("--until=%d", daemonTime(c).Unix()))
 	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, NotGCCGO)

 
 	errChan := make(chan error)
 	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)
 		}
 	}()
 	select {
 	case err := <-errChan:

 		c.Assert(err, checker.IsNil)

 	case <-time.After(20 * time.Second):
 		defer dockerCmd(c, "kill", "oomTrue")
 
 		out, _ := dockerCmd(c, "events", "--since=0", "-f", "container=oomTrue", fmt.Sprintf("--until=%d", daemonTime(c).Unix()))
 		events := strings.Split(strings.TrimSuffix(out, "\n"), "\n")

 		nEvents := len(events)
 		c.Assert(nEvents, checker.GreaterOrEqualThan, 4) //Missing expected event

 		c.Assert(parseEventAction(c, events[nEvents-4]), checker.Equals, "create")
 		c.Assert(parseEventAction(c, events[nEvents-3]), checker.Equals, "attach")
 		c.Assert(parseEventAction(c, events[nEvents-2]), checker.Equals, "start")
 		c.Assert(parseEventAction(c, events[nEvents-1]), checker.Equals, "oom")

 
 		out, _ = dockerCmd(c, "inspect", "-f", "{{.State.Status}}", "oomTrue")

 		c.Assert(strings.TrimSpace(out), 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", fmt.Sprintf("--until=%d", daemonTime(c).Unix()))
 	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)
 	var (
 		out string
 		ch  chan struct{}
 	)
 	ch = make(chan struct{})
 
 	// calculate the time it takes to create and start a container and sleep 2 seconds
 	// this is to make sure the docker event will recevie the event of container
 	since := daemonTime(c).Unix()
 	id, _ := dockerCmd(c, "run", "-d", "busybox", "top")
 	cID := strings.TrimSpace(id)
 	waitRun(cID)
 	time.Sleep(2 * time.Second)
 	duration := daemonTime(c).Unix() - since
 
 	go func() {
 		out, _ = dockerCmd(c, "events", "-f", "container=foo", "--since=0", fmt.Sprintf("--until=%d", daemonTime(c).Unix()+2*duration))
 		close(ch)
 	}()
 	// Sleep 2 second to wait docker event to start
 	time.Sleep(2 * time.Second)
 	id, _ = dockerCmd(c, "run", "--name=foo", "-d", "busybox", "top")
 	cID = strings.TrimSpace(id)
 	waitRun(cID)
 	<-ch
 	c.Assert(out, checker.Contains, cID, check.Commentf("Missing event of container (foo)"))
 }

 
 func (s *DockerSuite) TestVolumeEvents(c *check.C) {
 	testRequires(c, DaemonIsLinux)
 
 	since := daemonTime(c).Unix()
 
 	// Observe create/mount volume actions
 	dockerCmd(c, "volume", "create", "--name", "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")
 
 	out, _ := dockerCmd(c, "events", fmt.Sprintf("--since=%d", since), fmt.Sprintf("--until=%d", daemonTime(c).Unix()))
 	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 := daemonTime(c).Unix()
 
 	// 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")
 
 	out, _ := dockerCmd(c, "events", fmt.Sprintf("--since=%d", since), fmt.Sprintf("--until=%d", daemonTime(c).Unix()))
 	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) 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),
 		"start":   make(chan bool),
 		"die":     make(chan bool),
 		"destroy": make(chan bool),
 	}
 
 	matcher := matchEventLine(containerID, "container", testActions)
 	go observer.Match(matcher)
 
 	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"
 	imageID, err := buildImage(name,
 		`FROM scratch
 		MAINTAINER "docker"`,
 		true)
 	c.Assert(err, checker.IsNil)
 	c.Assert(deleteImages(name), checker.IsNil)
 
 	testActions := map[string]chan bool{
 		"untag":  make(chan bool),
 		"delete": make(chan bool),
 	}
 
 	matcher := matchEventLine(imageID, "image", testActions)
 	go observer.Match(matcher)
 
 	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 := daemonTime(c).Unix()
 
 	dockerCmd(c, "network", "create", "test-event-network-type")
 	dockerCmd(c, "volume", "create", "--name", "test-event-volume-type")
 
 	out, _ := dockerCmd(c, "events", "--filter", "type=volume", "--filter", "type=network", fmt.Sprintf("--since=%d", since), fmt.Sprintf("--until=%d", daemonTime(c).Unix()))
 	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 := daemonTime(c).Unix()
 
 	dockerCmd(c, "volume", "create", "--name", "test-event-volume-id")
 	out, _ := dockerCmd(c, "events", "--filter", "volume=test-event-volume-id", fmt.Sprintf("--since=%d", since), fmt.Sprintf("--until=%d", daemonTime(c).Unix()))
 	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 := daemonTime(c).Unix()
 
 	dockerCmd(c, "network", "create", "test-event-network-local")
 	out, _ := dockerCmd(c, "events", "--filter", "network=test-event-network-local", fmt.Sprintf("--since=%d", since), fmt.Sprintf("--until=%d", daemonTime(c).Unix()))
 	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")
 }