Support replication between Harbor 2.0 and 1.x

Fixes #11374, fixes #11302, support replication between Harbor 2.0 and 1.x by providing versioning adapter

Signed-off-by: Wenkai Yin <yinw@vmware.com>

src/replication/adapter/harbor/adaper.go

@@ -0,0 +1,54 @@
+// Copyright Project Harbor Authors
+//
+// 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 harbor
+
+import (
+	"github.com/goharbor/harbor/src/lib/log"
+	adp "github.com/goharbor/harbor/src/replication/adapter"
+	"github.com/goharbor/harbor/src/replication/adapter/harbor/base"
+	v1 "github.com/goharbor/harbor/src/replication/adapter/harbor/v1"
+	v2 "github.com/goharbor/harbor/src/replication/adapter/harbor/v2"
+	"github.com/goharbor/harbor/src/replication/model"
+)
+
+func init() {
+	if err := adp.RegisterFactory(model.RegistryTypeHarbor, new(factory)); err != nil {
+		log.Errorf("failed to register factory for %s: %v", model.RegistryTypeHarbor, err)
+		return
+	}
+	log.Infof("the factory for adapter %s registered", model.RegistryTypeHarbor)
+}
+
+type factory struct {
+}
+
+func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
+	base, err := base.New(r)
+	if err != nil {
+		return nil, err
+	}
+	version := base.GetAPIVersion()
+	// no API version, it's instance of Harbor 1.x
+	if len(version) == 0 {
+		log.Debug("no API version, create the v1 adapter")
+		return v1.New(base), nil
+	}
+	log.Debugf("API version is %s, create the v2 adapter", version)
+	return v2.New(base), nil
+}
+
+func (f *factory) AdapterPattern() *model.AdapterPattern {
+	return nil
+}

src/replication/adapter/harbor/base/adapter.go

@@ -12,81 +12,48 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package harbor
+package base
 
 import (
 	"errors"
-	"fmt"
 	"net/http"
 	"strconv"
 	"strings"
 
-	"github.com/goharbor/harbor/src/common/api"
 	common_http "github.com/goharbor/harbor/src/common/http"
 	"github.com/goharbor/harbor/src/common/http/modifier"
 	common_http_auth "github.com/goharbor/harbor/src/common/http/modifier/auth"
-	"github.com/goharbor/harbor/src/jobservice/config"
 	"github.com/goharbor/harbor/src/lib/log"
 	"github.com/goharbor/harbor/src/pkg/registry/auth/basic"
-
-	adp "github.com/goharbor/harbor/src/replication/adapter"
 	"github.com/goharbor/harbor/src/replication/adapter/native"
 	"github.com/goharbor/harbor/src/replication/model"
 	"github.com/goharbor/harbor/src/replication/util"
 )
 
-func init() {
-	if err := adp.RegisterFactory(model.RegistryTypeHarbor, new(factory)); err != nil {
-		log.Errorf("failed to register factory for %s: %v", model.RegistryTypeHarbor, err)
-		return
+// New creates an instance of the base adapter
+func New(registry *model.Registry) (*Adapter, error) {
+	if isLocalHarbor(registry) {
+		// when the adapter is created for local Harbor, returns the "http://127.0.0.1:8080"
+		// as URL to avoid issue https://github.com/goharbor/harbor-helm/issues/222
+		// when harbor is deployed on Kubernetes
+		url := "http://127.0.0.1:8080"
+		if common_http.InternalTLSEnabled() {
+			url = "https://127.0.0.1:8443"
 		}
-	log.Infof("the factory for adapter %s registered", model.RegistryTypeHarbor)
-}
-
-type factory struct {
-}
-
-// Create ...
-func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
-	return newAdapter(r)
-}
-
-// AdapterPattern ...
-func (f *factory) AdapterPattern() *model.AdapterPattern {
-	return nil
-}
-
-var (
-	_ adp.Adapter          = (*adapter)(nil)
-	_ adp.ArtifactRegistry = (*adapter)(nil)
-	_ adp.ChartRegistry    = (*adapter)(nil)
-)
-
-type adapter struct {
-	*native.Adapter
-	registry *model.Registry
-	url      string
-	client   *common_http.Client
-}
-
-func newAdapter(registry *model.Registry) (*adapter, error) {
-	var transport *http.Transport
-	if registry.URL == config.GetCoreURL() {
-		transport = common_http.GetHTTPTransport(common_http.SecureTransport)
-	} else {
-		transport = util.GetHTTPTransport(registry.Insecure)
-	}
-	// local Harbor instance
-	if registry.Credential != nil && registry.Credential.Type == model.CredentialTypeSecret {
 		authorizer := common_http_auth.NewSecretAuthorizer(registry.Credential.AccessSecret)
-		return &adapter{
-			registry: registry,
-			url:      registry.URL,
-			client: common_http.NewClient(
-				&http.Client{
-					Transport: transport,
-				}, authorizer),
+		httpClient := common_http.NewClient(&http.Client{
+			Transport: common_http.GetHTTPTransport(common_http.SecureTransport),
+		}, authorizer)
+		client, err := NewClient(url, httpClient)
+		if err != nil {
+			return nil, err
+		}
+		return &Adapter{
 			Adapter:    native.NewAdapterWithAuthorizer(registry, authorizer),
+			Registry:   registry,
+			Client:     client,
+			url:        url,
+			httpClient: httpClient,
 		}, nil
 	}
 
@@ -96,22 +63,43 @@ func newAdapter(registry *model.Registry) (*adapter, error) {
 			registry.Credential.AccessKey,
 			registry.Credential.AccessSecret))
 	}
-	return &adapter{
-		registry: registry,
-		url:      registry.URL,
-		client: common_http.NewClient(
-			&http.Client{
-				Transport: transport,
-			}, authorizers...),
+	httpClient := common_http.NewClient(&http.Client{
+		Transport: common_http.GetHTTPTransportByInsecure(registry.Insecure),
+	}, authorizers...)
+	client, err := NewClient(registry.URL, httpClient)
+	if err != nil {
+		return nil, err
+	}
+	return &Adapter{
 		Adapter:    native.NewAdapter(registry),
+		Registry:   registry,
+		Client:     client,
+		url:        registry.URL,
+		httpClient: httpClient,
 	}, nil
 }
 
-func (a *adapter) Info() (*model.RegistryInfo, error) {
+// Adapter is the base adapter for Harbor
+type Adapter struct {
+	*native.Adapter
+	Registry *model.Registry
+	Client   *Client
+
+	// url and httpClient can be removed if we don't support replicate chartmuseum charts anymore
+	url        string
+	httpClient *common_http.Client
+}
+
+// GetAPIVersion returns the supported API version of the Harbor instance that the adapter is created for
+func (a *Adapter) GetAPIVersion() string {
+	return a.Client.APIVersion
+}
+
+// Info provides the information of the Harbor registry instance
+func (a *Adapter) Info() (*model.RegistryInfo, error) {
 	info := &model.RegistryInfo{
 		Type: model.RegistryTypeHarbor,
 		SupportedResourceTypes: []model.ResourceType{
-			model.ResourceTypeArtifact,
 			model.ResourceTypeImage,
 		},
 		SupportedResourceFilters: []*model.FilterStyle{
@@ -130,40 +118,31 @@ func (a *adapter) Info() (*model.RegistryInfo, error) {
 		},
 	}
 
-	sys := &struct {
-		ChartRegistryEnabled bool `json:"with_chartmuseum"`
-	}{}
-	if err := a.client.Get(fmt.Sprintf("%s/api/%s/systeminfo", a.getURL(), api.APIVersion), sys); err != nil {
+	enabled, err := a.Client.ChartRegistryEnabled()
+	if err != nil {
 		return nil, err
 	}
-	if sys.ChartRegistryEnabled {
+	if enabled {
 		info.SupportedResourceTypes = append(info.SupportedResourceTypes, model.ResourceTypeChart)
 	}
-	labels := []*struct {
-		Name string `json:"name"`
-	}{}
-	// label isn't supported in some previous version of Harbor
-	if err := a.client.Get(fmt.Sprintf("%s/api/%s/labels?scope=g", a.getURL(), api.APIVersion), &labels); err != nil {
-		if e, ok := err.(*common_http.Error); !ok || e.Code != http.StatusNotFound {
+
+	labels, err := a.Client.ListLabels()
+	if err != nil {
 		return nil, err
 	}
-	} else {
-		ls := []string{}
-		for _, label := range labels {
-			ls = append(ls, label.Name)
-		}
-		labelFilter := &model.FilterStyle{
+	info.SupportedResourceFilters = append(info.SupportedResourceFilters,
+		&model.FilterStyle{
 			Type:   model.FilterTypeLabel,
 			Style:  model.FilterStyleTypeList,
-			Values: ls,
-		}
-		info.SupportedResourceFilters = append(info.SupportedResourceFilters, labelFilter)
-	}
+			Values: labels,
+		})
+
 	return info, nil
 }
 
-func (a *adapter) PrepareForPush(resources []*model.Resource) error {
-	projects := map[string]*project{}
+// PrepareForPush creates projects
+func (a *Adapter) PrepareForPush(resources []*model.Resource) error {
+	projects := map[string]*Project{}
 	for _, resource := range resources {
 		if resource == nil {
 			return errors.New("the resource cannot be null")
@@ -186,21 +165,13 @@ func (a *adapter) PrepareForPush(resources []*model.Resource) error {
 		if exist {
 			metadata = mergeMetadata(pro.Metadata, metadata)
 		}
-		projects[projectName] = &project{
+		projects[projectName] = &Project{
 			Name:     projectName,
 			Metadata: metadata,
 		}
 	}
 	for _, project := range projects {
-		pro := struct {
-			Name     string                 `json:"project_name"`
-			Metadata map[string]interface{} `json:"metadata"`
-		}{
-			Name:     project.Name,
-			Metadata: project.Metadata,
-		}
-		err := a.client.Post(fmt.Sprintf("%s/api/%s/projects", a.getURL(), api.APIVersion), pro)
-		if err != nil {
+		if err := a.Client.CreateProject(project.Name, project.Metadata); err != nil {
 			if httpErr, ok := err.(*common_http.Error); ok && httpErr.Code == http.StatusConflict {
 				log.Debugf("got 409 when trying to create project %s", project.Name)
 				continue
@@ -212,6 +183,44 @@ func (a *adapter) PrepareForPush(resources []*model.Resource) error {
 	return nil
 }
 
+// ListProjects lists projects
+func (a *Adapter) ListProjects(filters []*model.Filter) ([]*Project, error) {
+	pattern := ""
+	for _, filter := range filters {
+		if filter.Type == model.FilterTypeName {
+			pattern = filter.Value.(string)
+			break
+		}
+	}
+	var projects []*Project
+	if len(pattern) > 0 {
+		substrings := strings.Split(pattern, "/")
+		projectPattern := substrings[0]
+		names, ok := util.IsSpecificPathComponent(projectPattern)
+		if ok {
+			for _, name := range names {
+				project, err := a.Client.GetProject(name)
+				if err != nil {
+					return nil, err
+				}
+				if project == nil {
+					continue
+				}
+				projects = append(projects, project)
+			}
+		}
+	}
+	if len(projects) > 0 {
+		var names []string
+		for _, project := range projects {
+			names = append(names, project.Name)
+		}
+		log.Debugf("parsed the projects %v from pattern %s", names, pattern)
+		return projects, nil
+	}
+	return a.Client.ListProjects("")
+}
+
 func abstractPublicMetadata(metadata map[string]interface{}) map[string]interface{} {
 	if metadata == nil {
 		return nil
@@ -257,56 +266,13 @@ func parsePublic(metadata map[string]interface{}) bool {
 	return false
 }
 
-type project struct {
+// Project model
+type Project struct {
 	ID       int64                  `json:"project_id"`
 	Name     string                 `json:"name"`
 	Metadata map[string]interface{} `json:"metadata"`
 }
 
-func (a *adapter) getProjects(name string) ([]*project, error) {
-	projects := []*project{}
-	url := fmt.Sprintf("%s/api/%s/projects?name=%s&page=1&page_size=500", a.getURL(), api.APIVersion, name)
-	if err := a.client.GetAndIteratePagination(url, &projects); err != nil {
-		return nil, err
-	}
-	return projects, nil
-}
-
-func (a *adapter) getProject(name string) (*project, error) {
-	// TODO need an API to exact match project by name
-	projects, err := a.getProjects(name)
-	if err != nil {
-		return nil, err
-	}
-
-	for _, pro := range projects {
-		if pro.Name == name {
-			p := &project{
-				ID:   pro.ID,
-				Name: name,
-			}
-			if pro.Metadata != nil {
-				metadata := map[string]interface{}{}
-				for key, value := range pro.Metadata {
-					metadata[key] = value
-				}
-				p.Metadata = metadata
-			}
-			return p, nil
-		}
-	}
-	return nil, nil
-}
-
-// when the adapter is created for local Harbor, returns the "http://127.0.0.1:8080"
-// as URL to avoid issue https://github.com/goharbor/harbor-helm/issues/222
-// when harbor is deployed on Kubernetes
-func (a *adapter) getURL() string {
-	if a.registry.Type == model.RegistryTypeHarbor && a.registry.Name == "Local" {
-		if common_http.InternalTLSEnabled() {
-			return "https://core:8443"
-		}
-		return "http://127.0.0.1:8080"
-	}
-	return a.url
+func isLocalHarbor(registry *model.Registry) bool {
+	return registry.Type == model.RegistryTypeHarbor && registry.Name == "Local"
 }

src/replication/adapter/harbor/base/adapter_test.go

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package harbor
+package base
 
 import (
 	"net/http"
@@ -25,11 +25,18 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+func TestGetAPIVersion(t *testing.T) {
+	adapter := &Adapter{
+		Client: &Client{APIVersion: "1.0"},
+	}
+	assert.Equal(t, "1.0", adapter.GetAPIVersion())
+}
+
 func TestInfo(t *testing.T) {
 	// chart museum enabled
 	server := test.NewServer(&test.RequestHandlerMapping{
 		Method:  http.MethodGet,
-		Pattern: "/api/v2.0/systeminfo",
+		Pattern: "/api/systeminfo",
 		Handler: func(w http.ResponseWriter, r *http.Request) {
 			data := `{"with_chartmuseum":true}`
 			w.Write([]byte(data))
@@ -38,23 +45,22 @@ func TestInfo(t *testing.T) {
 	registry := &model.Registry{
 		URL: server.URL,
 	}
-	adapter, err := newAdapter(registry)
+	adapter, err := New(registry)
 	require.Nil(t, err)
 	info, err := adapter.Info()
 	require.Nil(t, err)
 	assert.Equal(t, model.RegistryTypeHarbor, info.Type)
-	assert.Equal(t, 2, len(info.SupportedResourceFilters))
+	assert.Equal(t, 3, len(info.SupportedResourceFilters))
 	assert.Equal(t, 2, len(info.SupportedTriggers))
-	assert.Equal(t, 3, len(info.SupportedResourceTypes))
-	assert.Equal(t, model.ResourceTypeArtifact, info.SupportedResourceTypes[0])
-	assert.Equal(t, model.ResourceTypeImage, info.SupportedResourceTypes[1])
-	assert.Equal(t, model.ResourceTypeChart, info.SupportedResourceTypes[2])
+	assert.Equal(t, 2, len(info.SupportedResourceTypes))
+	assert.Equal(t, model.ResourceTypeImage, info.SupportedResourceTypes[0])
+	assert.Equal(t, model.ResourceTypeChart, info.SupportedResourceTypes[1])
 	server.Close()
 
 	// chart museum disabled
 	server = test.NewServer(&test.RequestHandlerMapping{
 		Method:  http.MethodGet,
-		Pattern: "/api/v2.0/systeminfo",
+		Pattern: "/api/systeminfo",
 		Handler: func(w http.ResponseWriter, r *http.Request) {
 			data := `{"with_chartmuseum":false}`
 			w.Write([]byte(data))
@@ -63,23 +69,22 @@ func TestInfo(t *testing.T) {
 	registry = &model.Registry{
 		URL: server.URL,
 	}
-	adapter, err = newAdapter(registry)
+	adapter, err = New(registry)
 	require.Nil(t, err)
 	info, err = adapter.Info()
 	require.Nil(t, err)
 	assert.Equal(t, model.RegistryTypeHarbor, info.Type)
-	assert.Equal(t, 2, len(info.SupportedResourceFilters))
+	assert.Equal(t, 3, len(info.SupportedResourceFilters))
 	assert.Equal(t, 2, len(info.SupportedTriggers))
-	assert.Equal(t, 2, len(info.SupportedResourceTypes))
-	assert.Equal(t, model.ResourceTypeArtifact, info.SupportedResourceTypes[0])
-	assert.Equal(t, model.ResourceTypeImage, info.SupportedResourceTypes[1])
+	assert.Equal(t, 1, len(info.SupportedResourceTypes))
+	assert.Equal(t, model.ResourceTypeImage, info.SupportedResourceTypes[0])
 	server.Close()
 }
 
 func TestPrepareForPush(t *testing.T) {
 	server := test.NewServer(&test.RequestHandlerMapping{
 		Method:  http.MethodPost,
-		Pattern: "/api/v2.0/projects",
+		Pattern: "/api/projects",
 		Handler: func(w http.ResponseWriter, r *http.Request) {
 			w.WriteHeader(http.StatusCreated)
 		},
@@ -87,7 +92,7 @@ func TestPrepareForPush(t *testing.T) {
 	registry := &model.Registry{
 		URL: server.URL,
 	}
-	adapter, err := newAdapter(registry)
+	adapter, err := New(registry)
 	require.Nil(t, err)
 	// nil resource
 	err = adapter.PrepareForPush([]*model.Resource{nil})
@@ -133,7 +138,7 @@ func TestPrepareForPush(t *testing.T) {
 	// project already exists
 	server = test.NewServer(&test.RequestHandlerMapping{
 		Method:  http.MethodPost,
-		Pattern: "/api/v2.0/projects",
+		Pattern: "/api/projects",
 		Handler: func(w http.ResponseWriter, r *http.Request) {
 			w.WriteHeader(http.StatusConflict)
 		},
@@ -141,7 +146,7 @@ func TestPrepareForPush(t *testing.T) {
 	registry = &model.Registry{
 		URL: server.URL,
 	}
-	adapter, err = newAdapter(registry)
+	adapter, err = New(registry)
 	require.Nil(t, err)
 	err = adapter.PrepareForPush(
 		[]*model.Resource{

src/replication/adapter/harbor/base/chart_registry.go

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package harbor
+package base
 
 import (
 	"bytes"
@@ -23,9 +23,8 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/goharbor/harbor/src/replication/filter"
-
 	common_http "github.com/goharbor/harbor/src/common/http"
+	"github.com/goharbor/harbor/src/replication/filter"
 	"github.com/goharbor/harbor/src/replication/model"
 )
 
@@ -46,17 +45,18 @@ type chartVersionMetadata struct {
 	URLs []string `json:"urls"`
 }
 
-func (a *adapter) FetchCharts(filters []*model.Filter) ([]*model.Resource, error) {
-	projects, err := a.listProjects(filters)
+// FetchCharts fetches charts
+func (a *Adapter) FetchCharts(filters []*model.Filter) ([]*model.Resource, error) {
+	projects, err := a.ListProjects(filters)
 	if err != nil {
 		return nil, err
 	}
 
 	resources := []*model.Resource{}
 	for _, project := range projects {
-		url := fmt.Sprintf("%s/api/chartrepo/%s/charts", a.getURL(), project.Name)
+		url := fmt.Sprintf("%s/api/chartrepo/%s/charts", a.url, project.Name)
 		repositories := []*model.Repository{}
-		if err := a.client.Get(url, &repositories); err != nil {
+		if err := a.httpClient.Get(url, &repositories); err != nil {
 			return nil, err
 		}
 		if len(repositories) == 0 {
@@ -72,9 +72,9 @@ func (a *adapter) FetchCharts(filters []*model.Filter) ([]*model.Resource, error
 
 		for _, repository := range repositories {
 			name := strings.SplitN(repository.Name, "/", 2)[1]
-			url := fmt.Sprintf("%s/api/chartrepo/%s/charts/%s", a.getURL(), project.Name, name)
+			url := fmt.Sprintf("%s/api/chartrepo/%s/charts/%s", a.url, project.Name, name)
 			versions := []*chartVersion{}
-			if err := a.client.Get(url, &versions); err != nil {
+			if err := a.httpClient.Get(url, &versions); err != nil {
 				return nil, err
 			}
 			if len(versions) == 0 {
@@ -102,7 +102,7 @@ func (a *adapter) FetchCharts(filters []*model.Filter) ([]*model.Resource, error
 			for _, artifact := range artifacts {
 				resources = append(resources, &model.Resource{
 					Type:     model.ResourceTypeChart,
-					Registry: a.registry,
+					Registry: a.Registry,
 					Metadata: &model.ResourceMetadata{
 						Repository: &model.Repository{
 							Name:     repository.Name,
@@ -117,7 +117,8 @@ func (a *adapter) FetchCharts(filters []*model.Filter) ([]*model.Resource, error
 	return resources, nil
 }
 
-func (a *adapter) ChartExist(name, version string) (bool, error) {
+// ChartExist checks the existence of the chart
+func (a *Adapter) ChartExist(name, version string) (bool, error) {
 	_, err := a.getChartInfo(name, version)
 	if err == nil {
 		return true, nil
@@ -128,20 +129,21 @@ func (a *adapter) ChartExist(name, version string) (bool, error) {
 	return false, err
 }
 
-func (a *adapter) getChartInfo(name, version string) (*chartVersionDetail, error) {
+func (a *Adapter) getChartInfo(name, version string) (*chartVersionDetail, error) {
 	project, name, err := parseChartName(name)
 	if err != nil {
 		return nil, err
 	}
 	url := fmt.Sprintf("%s/api/chartrepo/%s/charts/%s/%s", a.url, project, name, version)
 	info := &chartVersionDetail{}
-	if err = a.client.Get(url, info); err != nil {
+	if err = a.httpClient.Get(url, info); err != nil {
 		return nil, err
 	}
 	return info, nil
 }
 
-func (a *adapter) DownloadChart(name, version string) (io.ReadCloser, error) {
+// DownloadChart downloads the specific chart
+func (a *Adapter) DownloadChart(name, version string) (io.ReadCloser, error) {
 	info, err := a.getChartInfo(name, version)
 	if err != nil {
 		return nil, err
@@ -162,7 +164,7 @@ func (a *adapter) DownloadChart(name, version string) (io.ReadCloser, error) {
 	if err != nil {
 		return nil, err
 	}
-	resp, err := a.client.Do(req)
+	resp, err := a.httpClient.Do(req)
 	if err != nil {
 		return nil, err
 	}
@@ -176,7 +178,8 @@ func (a *adapter) DownloadChart(name, version string) (io.ReadCloser, error) {
 	return resp.Body, nil
 }
 
-func (a *adapter) UploadChart(name, version string, chart io.Reader) error {
+// UploadChart uploads the chart
+func (a *Adapter) UploadChart(name, version string, chart io.Reader) error {
 	project, name, err := parseChartName(name)
 	if err != nil {
 		return err
@@ -200,7 +203,7 @@ func (a *adapter) UploadChart(name, version string, chart io.Reader) error {
 		return err
 	}
 	req.Header.Set("Content-Type", w.FormDataContentType())
-	resp, err := a.client.Do(req)
+	resp, err := a.httpClient.Do(req)
 	if err != nil {
 		return err
 	}
@@ -219,13 +222,14 @@ func (a *adapter) UploadChart(name, version string, chart io.Reader) error {
 	return nil
 }
 
-func (a *adapter) DeleteChart(name, version string) error {
+// DeleteChart deletes the chart
+func (a *Adapter) DeleteChart(name, version string) error {
 	project, name, err := parseChartName(name)
 	if err != nil {
 		return err
 	}
 	url := fmt.Sprintf("%s/api/chartrepo/%s/charts/%s/%s", a.url, project, name, version)
-	return a.client.Delete(url)
+	return a.httpClient.Delete(url)
 }
 
 // TODO merge this method and utils.ParseRepository?

src/replication/adapter/harbor/base/chart_registry_test.go

@@ -12,15 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package harbor
+package base
 
 import (
 	"bytes"
-	"fmt"
 	"net/http"
 	"testing"
 
-	"github.com/goharbor/harbor/src/common/api"
 	"github.com/goharbor/harbor/src/common/utils/test"
 	"github.com/goharbor/harbor/src/replication/model"
 	"github.com/stretchr/testify/assert"
@@ -31,7 +29,7 @@ func TestFetchCharts(t *testing.T) {
 	server := test.NewServer([]*test.RequestHandlerMapping{
 		{
 			Method:  http.MethodGet,
-			Pattern: fmt.Sprintf("/api/%s/projects", api.APIVersion),
+			Pattern: "/api/projects",
 			Handler: func(w http.ResponseWriter, r *http.Request) {
 				data := `[{
 					"name": "library",
@@ -69,7 +67,7 @@ func TestFetchCharts(t *testing.T) {
 	registry := &model.Registry{
 		URL: server.URL,
 	}
-	adapter, err := newAdapter(registry)
+	adapter, err := New(registry)
 	require.Nil(t, err)
 	// nil filter
 	resources, err := adapter.FetchCharts(nil)
@@ -116,7 +114,7 @@ func TestChartExist(t *testing.T) {
 	registry := &model.Registry{
 		URL: server.URL,
 	}
-	adapter, err := newAdapter(registry)
+	adapter, err := New(registry)
 	require.Nil(t, err)
 	exist, err := adapter.ChartExist("library/harbor", "1.0")
 	require.Nil(t, err)
@@ -149,7 +147,7 @@ func TestDownloadChart(t *testing.T) {
 	registry := &model.Registry{
 		URL: server.URL,
 	}
-	adapter, err := newAdapter(registry)
+	adapter, err := New(registry)
 	require.Nil(t, err)
 	_, err = adapter.DownloadChart("library/harbor", "1.0")
 	require.Nil(t, err)
@@ -167,7 +165,7 @@ func TestUploadChart(t *testing.T) {
 	registry := &model.Registry{
 		URL: server.URL,
 	}
-	adapter, err := newAdapter(registry)
+	adapter, err := New(registry)
 	require.Nil(t, err)
 	err = adapter.UploadChart("library/harbor", "1.0", bytes.NewBuffer(nil))
 	require.Nil(t, err)
@@ -185,7 +183,7 @@ func TestDeleteChart(t *testing.T) {
 	registry := &model.Registry{
 		URL: server.URL,
 	}
-	adapter, err := newAdapter(registry)
+	adapter, err := New(registry)
 	require.Nil(t, err)
 	err = adapter.DeleteChart("library/harbor", "1.0")
 	require.Nil(t, err)

src/replication/adapter/harbor/base/client.go

@@ -0,0 +1,135 @@
+// Copyright Project Harbor Authors
+//
+// 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 base
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+
+	common_http "github.com/goharbor/harbor/src/common/http"
+)
+
+// NewClient returns an instance of the base client
+func NewClient(url string, c *common_http.Client) (*Client, error) {
+	client := &Client{
+		URL: strings.TrimSuffix(url, "/"),
+		C:   c,
+	}
+	version, err := client.GetAPIVersion()
+	if err != nil {
+		return nil, err
+	}
+	client.APIVersion = version
+	return client, nil
+}
+
+// Client is the base client that provides common methods for all versions of Harbor clients
+type Client struct {
+	URL        string
+	APIVersion string
+	C          *common_http.Client
+}
+
+// GetAPIVersion returns the supported API version
+func (c *Client) GetAPIVersion() (string, error) {
+	version := &struct {
+		Version string `json:"version"`
+	}{}
+	err := c.C.Get(c.URL+"/api/version", version)
+	if err == nil {
+		return version.Version, nil
+	}
+	// Harbor 1.x has no API version endpoint
+	if e, ok := err.(*common_http.Error); ok && e.Code == http.StatusNotFound {
+		return "", nil
+	}
+	return "", err
+}
+
+// ChartRegistryEnabled returns whether the chart registry is enabled for the Harbor instance
+func (c *Client) ChartRegistryEnabled() (bool, error) {
+	sys := &struct {
+		ChartRegistryEnabled bool `json:"with_chartmuseum"`
+	}{}
+	if err := c.C.Get(c.BaseURL()+"/systeminfo", sys); err != nil {
+		return false, err
+	}
+	return sys.ChartRegistryEnabled, nil
+}
+
+// ListLabels lists system level labels
+func (c *Client) ListLabels() ([]string, error) {
+	labels := []*struct {
+		Name string `json:"name"`
+	}{}
+	err := c.C.Get(c.BaseURL()+"/labels?scope=g", &labels)
+	if err == nil {
+		var lbs []string
+		for _, label := range labels {
+			lbs = append(lbs, label.Name)
+		}
+		return lbs, nil
+	}
+	// label isn't supported in some previous version of Harbor
+	if e, ok := err.(*common_http.Error); !ok || e.Code != http.StatusNotFound {
+		return nil, err
+	}
+	return nil, nil
+}
+
+// CreateProject creates project
+func (c *Client) CreateProject(name string, metadata map[string]interface{}) error {
+	project := struct {
+		Name     string                 `json:"project_name"`
+		Metadata map[string]interface{} `json:"metadata"`
+	}{
+		Name:     name,
+		Metadata: metadata,
+	}
+	return c.C.Post(c.BaseURL()+"/projects", project)
+}
+
+// ListProjects lists projects
+func (c *Client) ListProjects(name string) ([]*Project, error) {
+	projects := []*Project{}
+	url := fmt.Sprintf("%s/projects?name=%s", c.BaseURL(), name)
+	if err := c.C.GetAndIteratePagination(url, &projects); err != nil {
+		return nil, err
+	}
+	return projects, nil
+}
+
+// GetProject gets the specific project
+func (c *Client) GetProject(name string) (*Project, error) {
+	projects, err := c.ListProjects(name)
+	if err != nil {
+		return nil, err
+	}
+	for _, project := range projects {
+		if project.Name == name {
+			return project, nil
+		}
+	}
+	return nil, nil
+}
+
+// BaseURL returns the base URL of APIs
+func (c *Client) BaseURL() string {
+	if len(c.APIVersion) == 0 {
+		return fmt.Sprintf("%s/api", c.URL)
+	}
+	return fmt.Sprintf("%s/api/%s", c.URL, c.APIVersion)
+}

src/replication/adapter/harbor/image_registry.go

@@ -1,177 +0,0 @@
-// Copyright Project Harbor Authors
-//
-// 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 harbor
-
-import (
-	"fmt"
-	"github.com/goharbor/harbor/src/common/api"
-	"github.com/goharbor/harbor/src/common/models"
-	"github.com/goharbor/harbor/src/common/utils"
-	"github.com/goharbor/harbor/src/controller/artifact"
-	"github.com/goharbor/harbor/src/lib/log"
-	adp "github.com/goharbor/harbor/src/replication/adapter"
-	"github.com/goharbor/harbor/src/replication/filter"
-	"github.com/goharbor/harbor/src/replication/model"
-	"github.com/goharbor/harbor/src/replication/util"
-	"strings"
-)
-
-func (a *adapter) FetchArtifacts(filters []*model.Filter) ([]*model.Resource, error) {
-	projects, err := a.listProjects(filters)
-	if err != nil {
-		return nil, err
-	}
-
-	var resources []*model.Resource
-	for _, project := range projects {
-		repositories, err := a.listRepositories(project, filters)
-		if err != nil {
-			return nil, err
-		}
-		if len(repositories) == 0 {
-			continue
-		}
-
-		var rawResources = make([]*model.Resource, len(repositories))
-		runner := utils.NewLimitedConcurrentRunner(adp.MaxConcurrency)
-		defer runner.Cancel()
-
-		for i, r := range repositories {
-			index := i
-			repo := r
-			runner.AddTask(func() error {
-				artifacts, err := a.listArtifacts(repo.Name, filters)
-				if err != nil {
-					return fmt.Errorf("failed to list artifacts of repository '%s': %v", repo.Name, err)
-				}
-				if len(artifacts) == 0 {
-					rawResources[index] = nil
-					return nil
-				}
-
-				rawResources[index] = &model.Resource{
-					Type:     model.ResourceTypeArtifact,
-					Registry: a.registry,
-					Metadata: &model.ResourceMetadata{
-						Repository: &model.Repository{
-							Name:     repo.Name,
-							Metadata: project.Metadata,
-						},
-						Artifacts: artifacts,
-					},
-				}
-				return nil
-			})
-		}
-		runner.Wait()
-
-		if runner.IsCancelled() {
-			return nil, fmt.Errorf("FetchArtifacts error when collect tags for repos")
-		}
-
-		for _, r := range rawResources {
-			if r != nil {
-				resources = append(resources, r)
-			}
-		}
-	}
-
-	return resources, nil
-}
-
-func (a *adapter) listProjects(filters []*model.Filter) ([]*project, error) {
-	pattern := ""
-	for _, filter := range filters {
-		if filter.Type == model.FilterTypeName {
-			pattern = filter.Value.(string)
-			break
-		}
-	}
-	var projects []*project
-	if len(pattern) > 0 {
-		substrings := strings.Split(pattern, "/")
-		projectPattern := substrings[0]
-		names, ok := util.IsSpecificPathComponent(projectPattern)
-		if ok {
-			for _, name := range names {
-				project, err := a.getProject(name)
-				if err != nil {
-					return nil, err
-				}
-				if project == nil {
-					continue
-				}
-				projects = append(projects, project)
-			}
-		}
-	}
-	if len(projects) > 0 {
-		var names []string
-		for _, project := range projects {
-			names = append(names, project.Name)
-		}
-		log.Debugf("parsed the projects %v from pattern %s", names, pattern)
-		return projects, nil
-	}
-	return a.getProjects("")
-}
-
-func (a *adapter) listRepositories(project *project, filters []*model.Filter) ([]*model.Repository, error) {
-	repositories := []*models.RepoRecord{}
-	url := fmt.Sprintf("%s/api/%s/projects/%s/repositories", a.getURL(), api.APIVersion, project.Name)
-	if err := a.client.GetAndIteratePagination(url, &repositories); err != nil {
-		return nil, err
-	}
-	var repos []*model.Repository
-	for _, repository := range repositories {
-		repos = append(repos, &model.Repository{
-			Name:     repository.Name,
-			Metadata: project.Metadata,
-		})
-	}
-	return filter.DoFilterRepositories(repos, filters)
-}
-
-func (a *adapter) listArtifacts(repository string, filters []*model.Filter) ([]*model.Artifact, error) {
-	project, repository := utils.ParseRepository(repository)
-	url := fmt.Sprintf("%s/api/%s/projects/%s/repositories/%s/artifacts?with_label=true",
-		a.getURL(), api.APIVersion, project, repository)
-	artifacts := []*artifact.Artifact{}
-	if err := a.client.GetAndIteratePagination(url, &artifacts); err != nil {
-		return nil, err
-	}
-	var arts []*model.Artifact
-	for _, artifact := range artifacts {
-		art := &model.Artifact{
-			Type:   artifact.Type,
-			Digest: artifact.Digest,
-		}
-		for _, label := range artifact.Labels {
-			art.Labels = append(art.Labels, label.Name)
-		}
-		for _, tag := range artifact.Tags {
-			art.Tags = append(art.Tags, tag.Name)
-		}
-		arts = append(arts, art)
-	}
-	return filter.DoFilterArtifacts(arts, filters)
-}
-
-func (a *adapter) DeleteTag(repository, tag string) error {
-	project, repository := utils.ParseRepository(repository)
-	url := fmt.Sprintf("%s/api/%s/projects/%s/repositories/%s/artifacts/%s/tags/%s",
-		a.getURL(), api.APIVersion, project, repository, tag, tag)
-	return a.client.Delete(url)
-}

src/replication/adapter/harbor/image_registry_test.go

@@ -1,109 +0,0 @@
-// Copyright Project Harbor Authors
-//
-// 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 harbor
-
-import (
-	"net/http"
-	"testing"
-
-	"github.com/goharbor/harbor/src/common/utils/test"
-	"github.com/goharbor/harbor/src/replication/model"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-func TestFetchArtifacts(t *testing.T) {
-	server := test.NewServer([]*test.RequestHandlerMapping{
-		{
-			Method:  http.MethodGet,
-			Pattern: "/api/v2.0/projects/library/repositories/hello-world/artifacts",
-			Handler: func(w http.ResponseWriter, r *http.Request) {
-				data := `[
-  {
-    "digest": "digest1",
-    "tags": [
-      {
-        "name": "1.0"
-      }
-    ]
-  },
-  {
-    "digest": "digest2",
-    "tags": [
-      {
-        "name": "2.0"
-      }
-    ]
-  }
-]`
-				w.Write([]byte(data))
-			},
-		},
-		{
-			Method:  http.MethodGet,
-			Pattern: "/api/v2.0/projects/library/repositories",
-			Handler: func(w http.ResponseWriter, r *http.Request) {
-				data := `[{
-					"name": "library/hello-world"
-				}]`
-				w.Write([]byte(data))
-			},
-		},
-		{
-			Method:  http.MethodGet,
-			Pattern: "/api/v2.0/projects",
-			Handler: func(w http.ResponseWriter, r *http.Request) {
-				data := `[{
-					"name": "library",
-					"metadata": {"public":true}
-				}]`
-				w.Write([]byte(data))
-			},
-		},
-	}...)
-	defer server.Close()
-	registry := &model.Registry{
-		URL: server.URL,
-	}
-	adapter, err := newAdapter(registry)
-	require.Nil(t, err)
-	// nil filter
-	resources, err := adapter.FetchArtifacts(nil)
-	require.Nil(t, err)
-	assert.Equal(t, 1, len(resources))
-	assert.Equal(t, model.ResourceTypeArtifact, resources[0].Type)
-	assert.Equal(t, "library/hello-world", resources[0].Metadata.Repository.Name)
-	assert.Equal(t, 2, len(resources[0].Metadata.Artifacts))
-	assert.Equal(t, "1.0", resources[0].Metadata.Artifacts[0].Tags[0])
-	assert.Equal(t, "2.0", resources[0].Metadata.Artifacts[1].Tags[0])
-	// not nil filter
-	filters := []*model.Filter{
-		{
-			Type:  model.FilterTypeName,
-			Value: "library/*",
-		},
-		{
-			Type:  model.FilterTypeTag,
-			Value: "1.0",
-		},
-	}
-	resources, err = adapter.FetchArtifacts(filters)
-	require.Nil(t, err)
-	assert.Equal(t, 1, len(resources))
-	assert.Equal(t, model.ResourceTypeArtifact, resources[0].Type)
-	assert.Equal(t, "library/hello-world", resources[0].Metadata.Repository.Name)
-	assert.Equal(t, 1, len(resources[0].Metadata.Artifacts))
-	assert.Equal(t, "1.0", resources[0].Metadata.Artifacts[0].Tags[0])
-}

src/replication/adapter/harbor/v1/adapter.go

@@ -0,0 +1,126 @@
+// Copyright Project Harbor Authors
+//
+// 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 v1
+
+import (
+	"fmt"
+
+	"github.com/goharbor/harbor/src/common/utils"
+	adp "github.com/goharbor/harbor/src/replication/adapter"
+	"github.com/goharbor/harbor/src/replication/adapter/harbor/base"
+	"github.com/goharbor/harbor/src/replication/filter"
+	"github.com/goharbor/harbor/src/replication/model"
+)
+
+var _ adp.Adapter = &adapter{}
+var _ adp.ArtifactRegistry = &adapter{}
+var _ adp.ChartRegistry = &adapter{}
+
+// New creates a Adapter for Harbor 1.x
+func New(base *base.Adapter) adp.Adapter {
+	return &adapter{
+		Adapter: base,
+		client:  &client{Client: base.Client},
+	}
+}
+
+type adapter struct {
+	*base.Adapter
+	client *client
+}
+
+func (a *adapter) FetchArtifacts(filters []*model.Filter) ([]*model.Resource, error) {
+	projects, err := a.ListProjects(filters)
+	if err != nil {
+		return nil, err
+	}
+
+	var resources []*model.Resource
+	for _, project := range projects {
+		repositories, err := a.listRepositories(project, filters)
+		if err != nil {
+			return nil, err
+		}
+		if len(repositories) == 0 {
+			continue
+		}
+
+		var rawResources = make([]*model.Resource, len(repositories))
+		runner := utils.NewLimitedConcurrentRunner(adp.MaxConcurrency)
+		defer runner.Cancel()
+
+		for i, r := range repositories {
+			index := i
+			repo := r
+			runner.AddTask(func() error {
+				artifacts, err := a.listArtifacts(repo.Name, filters)
+				if err != nil {
+					return fmt.Errorf("failed to list artifacts of repository '%s': %v", repo.Name, err)
+				}
+				if len(artifacts) == 0 {
+					rawResources[index] = nil
+					return nil
+				}
+
+				rawResources[index] = &model.Resource{
+					Type:     model.ResourceTypeImage,
+					Registry: a.Registry,
+					Metadata: &model.ResourceMetadata{
+						Repository: &model.Repository{
+							Name:     repo.Name,
+							Metadata: project.Metadata,
+						},
+						Artifacts: artifacts,
+					},
+				}
+				return nil
+			})
+		}
+		runner.Wait()
+
+		if runner.IsCancelled() {
+			return nil, fmt.Errorf("FetchArtifacts error when collect tags for repos")
+		}
+
+		for _, r := range rawResources {
+			if r != nil {
+				resources = append(resources, r)
+			}
+		}
+	}
+
+	return resources, nil
+}
+
+// override the default implementation by calling Harbor API directly
+func (a *adapter) DeleteManifest(repository, reference string) error {
+	return a.client.deleteManifest(repository, reference)
+}
+
+func (a *adapter) listRepositories(project *base.Project, filters []*model.Filter) ([]*model.Repository, error) {
+	repositories, err := a.client.listRepositories(project)
+	if err != nil {
+		return nil, err
+	}
+	return filter.DoFilterRepositories(repositories, filters)
+}
+
+func (a *adapter) listArtifacts(repository string, filters []*model.Filter) ([]*model.Artifact, error) {
+	artifacts, err := a.client.listArtifacts(repository)
+	if err != nil {
+		return nil, err
+	}
+	return filter.DoFilterArtifacts(artifacts, filters)
+}

src/replication/adapter/harbor/v1/client.go

@@ -0,0 +1,73 @@
+// Copyright Project Harbor Authors
+//
+// 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 v1
+
+import (
+	"fmt"
+
+	"github.com/goharbor/harbor/src/common/models"
+	"github.com/goharbor/harbor/src/replication/adapter/harbor/base"
+	"github.com/goharbor/harbor/src/replication/model"
+)
+
+type client struct {
+	*base.Client
+}
+
+func (c *client) listRepositories(project *base.Project) ([]*model.Repository, error) {
+	repositories := []*models.RepoRecord{}
+	url := fmt.Sprintf("%s/repositories?project_id=%d", c.BaseURL(), project.ID)
+	if err := c.C.GetAndIteratePagination(url, &repositories); err != nil {
+		return nil, err
+	}
+	var repos []*model.Repository
+	for _, repository := range repositories {
+		repos = append(repos, &model.Repository{
+			Name:     repository.Name,
+			Metadata: project.Metadata,
+		})
+	}
+	return repos, nil
+}
+
+func (c *client) listArtifacts(repository string) ([]*model.Artifact, error) {
+	url := fmt.Sprintf("%s/repositories/%s/tags", c.BaseURL(), repository)
+	tags := []*struct {
+		Name   string `json:"name"`
+		Labels []*struct {
+			Name string `json:"name"`
+		}
+	}{}
+	if err := c.C.Get(url, &tags); err != nil {
+		return nil, err
+	}
+	var artifacts []*model.Artifact
+	for _, tag := range tags {
+		artifact := &model.Artifact{
+			Type: string(model.ResourceTypeImage),
+			Tags: []string{tag.Name},
+		}
+		for _, label := range tag.Labels {
+			artifact.Labels = append(artifact.Labels, label.Name)
+		}
+		artifacts = append(artifacts, artifact)
+	}
+	return artifacts, nil
+}
+
+func (c *client) deleteManifest(repository, reference string) error {
+	url := fmt.Sprintf("%s/repositories/%s/tags/%s", c.BaseURL(), repository, reference)
+	return c.C.Delete(url)
+}

src/replication/adapter/harbor/v2/adapter.go

@@ -0,0 +1,134 @@
+// Copyright Project Harbor Authors
+//
+// 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 v2
+
+import (
+	"fmt"
+
+	"github.com/goharbor/harbor/src/common/utils"
+	adp "github.com/goharbor/harbor/src/replication/adapter"
+	"github.com/goharbor/harbor/src/replication/adapter/harbor/base"
+	"github.com/goharbor/harbor/src/replication/filter"
+	"github.com/goharbor/harbor/src/replication/model"
+)
+
+var _ adp.Adapter = &adapter{}
+var _ adp.ArtifactRegistry = &adapter{}
+var _ adp.ChartRegistry = &adapter{}
+
+// New creates a Adapter for Harbor 2.x
+func New(base *base.Adapter) adp.Adapter {
+	return &adapter{
+		Adapter: base,
+		client:  &client{Client: base.Client},
+	}
+}
+
+type adapter struct {
+	*base.Adapter
+	client *client
+}
+
+func (a *adapter) Info() (*model.RegistryInfo, error) {
+	info, err := a.Adapter.Info()
+	if err != nil {
+		return nil, err
+	}
+	info.SupportedResourceTypes = append(info.SupportedResourceTypes, model.ResourceTypeArtifact)
+	return info, err
+}
+
+func (a *adapter) FetchArtifacts(filters []*model.Filter) ([]*model.Resource, error) {
+	projects, err := a.ListProjects(filters)
+	if err != nil {
+		return nil, err
+	}
+
+	var resources []*model.Resource
+	for _, project := range projects {
+		repositories, err := a.listRepositories(project, filters)
+		if err != nil {
+			return nil, err
+		}
+		if len(repositories) == 0 {
+			continue
+		}
+
+		var rawResources = make([]*model.Resource, len(repositories))
+		runner := utils.NewLimitedConcurrentRunner(adp.MaxConcurrency)
+		defer runner.Cancel()
+
+		for i, r := range repositories {
+			index := i
+			repo := r
+			runner.AddTask(func() error {
+				artifacts, err := a.listArtifacts(repo.Name, filters)
+				if err != nil {
+					return fmt.Errorf("failed to list artifacts of repository '%s': %v", repo.Name, err)
+				}
+				if len(artifacts) == 0 {
+					rawResources[index] = nil
+					return nil
+				}
+
+				rawResources[index] = &model.Resource{
+					Type:     model.ResourceTypeArtifact,
+					Registry: a.Registry,
+					Metadata: &model.ResourceMetadata{
+						Repository: &model.Repository{
+							Name:     repo.Name,
+							Metadata: project.Metadata,
+						},
+						Artifacts: artifacts,
+					},
+				}
+				return nil
+			})
+		}
+		runner.Wait()
+
+		if runner.IsCancelled() {
+			return nil, fmt.Errorf("FetchArtifacts error when collect tags for repos")
+		}
+
+		for _, r := range rawResources {
+			if r != nil {
+				resources = append(resources, r)
+			}
+		}
+	}
+
+	return resources, nil
+}
+
+func (a *adapter) DeleteTag(repository, tag string) error {
+	return a.client.deleteTag(repository, tag)
+}
+
+func (a *adapter) listRepositories(project *base.Project, filters []*model.Filter) ([]*model.Repository, error) {
+	repositories, err := a.client.listRepositories(project)
+	if err != nil {
+		return nil, err
+	}
+	return filter.DoFilterRepositories(repositories, filters)
+}
+
+func (a *adapter) listArtifacts(repository string, filters []*model.Filter) ([]*model.Artifact, error) {
+	artifacts, err := a.client.listArtifacts(repository)
+	if err != nil {
+		return nil, err
+	}
+	return filter.DoFilterArtifacts(artifacts, filters)
+}

src/replication/adapter/harbor/v2/client.go

@@ -0,0 +1,80 @@
+// Copyright Project Harbor Authors
+//
+// 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 v2
+
+import (
+	"fmt"
+	"net/url"
+
+	"github.com/goharbor/harbor/src/common/models"
+	"github.com/goharbor/harbor/src/common/utils"
+	"github.com/goharbor/harbor/src/controller/artifact"
+	"github.com/goharbor/harbor/src/replication/adapter/harbor/base"
+	"github.com/goharbor/harbor/src/replication/model"
+)
+
+type client struct {
+	*base.Client
+}
+
+func (c *client) listRepositories(project *base.Project) ([]*model.Repository, error) {
+	repositories := []*models.RepoRecord{}
+	url := fmt.Sprintf("%s/projects/%s/repositories", c.BaseURL(), project.Name)
+	if err := c.C.GetAndIteratePagination(url, &repositories); err != nil {
+		return nil, err
+	}
+	var repos []*model.Repository
+	for _, repository := range repositories {
+		repos = append(repos, &model.Repository{
+			Name:     repository.Name,
+			Metadata: project.Metadata,
+		})
+	}
+	return repos, nil
+}
+
+func (c *client) listArtifacts(repository string) ([]*model.Artifact, error) {
+	project, repository := utils.ParseRepository(repository)
+	repository = url.PathEscape(url.PathEscape(repository))
+	url := fmt.Sprintf("%s/projects/%s/repositories/%s/artifacts?with_label=true",
+		c.BaseURL(), project, repository)
+	artifacts := []*artifact.Artifact{}
+	if err := c.C.GetAndIteratePagination(url, &artifacts); err != nil {
+		return nil, err
+	}
+	var arts []*model.Artifact
+	for _, artifact := range artifacts {
+		art := &model.Artifact{
+			Type:   artifact.Type,
+			Digest: artifact.Digest,
+		}
+		for _, label := range artifact.Labels {
+			art.Labels = append(art.Labels, label.Name)
+		}
+		for _, tag := range artifact.Tags {
+			art.Tags = append(art.Tags, tag.Name)
+		}
+		arts = append(arts, art)
+	}
+	return arts, nil
+}
+
+func (c *client) deleteTag(repository, tag string) error {
+	project, repository := utils.ParseRepository(repository)
+	repository = url.PathEscape(url.PathEscape(repository))
+	url := fmt.Sprintf("%s/projects/%s/repositories/%s/artifacts/%s/tags/%s",
+		c.BaseURL(), project, repository, tag, tag)
+	return c.C.Delete(url)
+}

src/server/route.go

@@ -24,9 +24,14 @@ import (
 	"github.com/goharbor/harbor/src/core/service/notifications/jobs"
 	"github.com/goharbor/harbor/src/core/service/notifications/scheduler"
 	"github.com/goharbor/harbor/src/core/service/token"
+	"github.com/goharbor/harbor/src/server/router"
+	"net/http"
 )
 
 func registerRoutes() {
+	// API version
+	router.NewRoute().Method(http.MethodGet).Path("/api/version").HandlerFunc(GetAPIVersion)
+
 	// Controller API:
 	beego.Router("/c/login", &controllers.CommonController{}, "post:Login")
 	beego.Router("/c/log_out", &controllers.CommonController{}, "get:LogOut")

src/server/v2.0/route/legacy.go

@@ -23,6 +23,7 @@ import (
 // RegisterRoutes for Harbor legacy APIs
 // TODO bump up the version of APIs called by clients
 func registerLegacyRoutes() {
+	version := APIVersion
 	beego.Router("/api/"+version+"/projects/:pid([0-9]+)/members/?:pmid([0-9]+)", &api.ProjectMemberAPI{})
 	beego.Router("/api/"+version+"/projects/", &api.ProjectAPI{}, "head:Head")
 	beego.Router("/api/"+version+"/projects/:id([0-9]+)", &api.ProjectAPI{})

src/server/v2.0/route/route.go

@@ -20,14 +20,15 @@ import (
 	"github.com/goharbor/harbor/src/server/v2.0/handler"
 )
 
+// const definition
 const (
-	version = "v2.0"
+	APIVersion = "v2.0"
 )
 
 // RegisterRoutes for Harbor v2.0 APIs
 func RegisterRoutes() {
 	registerLegacyRoutes()
-	router.NewRoute().Path("/api/" + version + "/*").
-		Middleware(apiversion.Middleware(version)).
+	router.NewRoute().Path("/api/" + APIVersion + "/*").
+		Middleware(apiversion.Middleware(APIVersion)).
 		Handler(handler.New())
 }

src/server/version.go

@@ -0,0 +1,39 @@
+// Copyright Project Harbor Authors
+//
+// 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"
+	"net/http"
+
+	serror "github.com/goharbor/harbor/src/server/error"
+	"github.com/goharbor/harbor/src/server/v2.0/route"
+)
+
+var (
+	version = route.APIVersion
+)
+
+// APIVersion model
+type APIVersion struct {
+	Version string `json:"version"`
+}
+
+// GetAPIVersion returns the current supported API version
+func GetAPIVersion(w http.ResponseWriter, r *http.Request) {
+	if err := json.NewEncoder(w).Encode(&APIVersion{Version: version}); err != nil {
+		serror.SendError(w, err)
+	}
+}