func TestGetImagesJSONLegacyFormat(t *testing.T) {
	eng := engine.New()
	var called bool
	eng.Register("images", func(job *engine.Job) engine.Status {
		called = true
		outsLegacy := engine.NewTable("Created", 0)
		outsLegacy.Add(createEnvFromGetImagesJSONStruct(sampleImage))
		if _, err := outsLegacy.WriteListTo(job.Stdout); err != nil {
			return job.Error(err)
		}
		return engine.StatusOK
	})
	r := serveRequestUsingVersion("GET", "/images/json", "1.6", nil, eng, t)
	if !called {
		t.Fatal("handler was not called")
	}
	assertHttpNotError(r, t)
	assertContentType(r, "application/json", t)
	images := engine.NewTable("Created", 0)
	if _, err := images.ReadListFrom(r.Body.Bytes()); err != nil {
		t.Fatal(err)
	}
	if images.Len() != 1 {
		t.Fatalf("Expected 1 image, %d found", images.Len())
	}
	image := images.Data[0]
	if image.Get("Tag") != "test-tag" {
		t.Errorf("Expected tag 'test-tag', found '%s'", image.Get("Tag"))
	}
	if image.Get("Repository") != "test-name" {
		t.Errorf("Expected repository 'test-name', found '%s'", image.Get("Repository"))
	}
}
func getImagesJSON(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
	if err := parseForm(r); err != nil {
		return err
	}

	var (
		err  error
		outs *engine.Table
		job  = eng.Job("images")
	)

	job.Setenv("filters", r.Form.Get("filters"))
	// FIXME this parameter could just be a match filter
	job.Setenv("filter", r.Form.Get("filter"))
	job.Setenv("all", r.Form.Get("all"))

	if version.GreaterThanOrEqualTo("1.7") {
		streamJSON(job, w, false)
	} else if outs, err = job.Stdout.AddListTable(); err != nil {
		return err
	}

	if err := job.Run(); err != nil {
		return err
	}

	if version.LessThan("1.7") && outs != nil { // Convert to legacy format
		outsLegacy := engine.NewTable("Created", 0)
		for _, out := range outs.Data {
			for _, repoTag := range out.GetList("RepoTags") {
				repo, tag := parsers.ParseRepositoryTag(repoTag)
				outLegacy := &engine.Env{}
				outLegacy.Set("Repository", repo)
				outLegacy.SetJson("Tag", tag)
				outLegacy.Set("Id", out.Get("Id"))
				outLegacy.SetInt64("Created", out.GetInt64("Created"))
				outLegacy.SetInt64("Size", out.GetInt64("Size"))
				outLegacy.SetInt64("VirtualSize", out.GetInt64("VirtualSize"))
				outsLegacy.Add(outLegacy)
			}
		}
		w.Header().Set("Content-Type", "application/json")
		if _, err := outsLegacy.WriteListTo(w); err != nil {
			return err
		}
	}
	return nil
}
// Search queries the public registry for images matching the specified
// search terms, and returns the results.
//
// Argument syntax: search TERM
//
// Option environment:
//	'authConfig': json-encoded credentials to authenticate against the registry.
//		The search extends to images only accessible via the credentials.
//
//	'metaHeaders': extra HTTP headers to include in the request to the registry.
//		The headers should be passed as a json-encoded dictionary.
//
// Output:
//	Results are sent as a collection of structured messages (using engine.Table).
//	Each result is sent as a separate message.
//	Results are ordered by number of stars on the public registry.
func (s *Service) Search(job *engine.Job) engine.Status {
	if n := len(job.Args); n != 1 {
		return job.Errorf("Usage: %s TERM", job.Name)
	}
	var (
		term        = job.Args[0]
		metaHeaders = map[string][]string{}
		authConfig  = &AuthConfig{}
	)
	job.GetenvJson("authConfig", authConfig)
	job.GetenvJson("metaHeaders", metaHeaders)

	hostname, term, err := ResolveRepositoryName(term)
	if err != nil {
		return job.Error(err)
	}

	endpoint, err := NewEndpoint(hostname, s.insecureRegistries)
	if err != nil {
		return job.Error(err)
	}
	r, err := NewSession(authConfig, HTTPRequestFactory(metaHeaders), endpoint, true)
	if err != nil {
		return job.Error(err)
	}
	results, err := r.SearchRepositories(term)
	if err != nil {
		return job.Error(err)
	}
	outs := engine.NewTable("star_count", 0)
	for _, result := range results.Results {
		out := &engine.Env{}
		out.Import(result)
		outs.Add(out)
	}
	outs.ReverseSort()
	if _, err := outs.WriteListTo(job.Stdout); err != nil {
		return job.Error(err)
	}
	return engine.StatusOK
}
func getContainersJSON(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
	if err := parseForm(r); err != nil {
		return err
	}
	var (
		err  error
		outs *engine.Table
		job  = eng.Job("containers")
	)

	job.Setenv("all", r.Form.Get("all"))
	job.Setenv("size", r.Form.Get("size"))
	job.Setenv("since", r.Form.Get("since"))
	job.Setenv("before", r.Form.Get("before"))
	job.Setenv("limit", r.Form.Get("limit"))
	job.Setenv("filters", r.Form.Get("filters"))

	if version.GreaterThanOrEqualTo("1.5") {
		streamJSON(job, w, false)
	} else if outs, err = job.Stdout.AddTable(); err != nil {
		return err
	}
	if err = job.Run(); err != nil {
		return err
	}
	if version.LessThan("1.5") { // Convert to legacy format
		for _, out := range outs.Data {
			ports := engine.NewTable("", 0)
			ports.ReadListFrom([]byte(out.Get("Ports")))
			out.Set("Ports", api.DisplayablePorts(ports))
		}
		w.Header().Set("Content-Type", "application/json")
		if _, err = outs.WriteListTo(w); err != nil {
			return err
		}
	}
	return nil
}