feat: kubesphere 4.0 (#6115)

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

---------

Signed-off-by: ci-bot <ci-bot@kubesphere.io>
Co-authored-by: ks-ci-bot <ks-ci-bot@example.com>
Co-authored-by: joyceliu <joyceliu@yunify.com>

pkg/kapis/package/v1alpha1/handler.go

@@ -0,0 +1,107 @@
+/*
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
+ */
+
+package v1alpha1
+
+import (
+	"bytes"
+	"fmt"
+	"net/url"
+
+	"github.com/emicklei/go-restful/v3"
+	"helm.sh/helm/v3/pkg/chart/loader"
+	"helm.sh/helm/v3/pkg/getter"
+	"helm.sh/helm/v3/pkg/registry"
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/types"
+	corev1alpha1 "kubesphere.io/api/core/v1alpha1"
+	runtimeclient "sigs.k8s.io/controller-runtime/pkg/client"
+
+	"kubesphere.io/kubesphere/pkg/api"
+)
+
+type handler struct {
+	cache runtimeclient.Reader
+}
+
+func (h *handler) ListFiles(request *restful.Request, response *restful.Response) {
+	extensionVersion := corev1alpha1.ExtensionVersion{}
+	if err := h.cache.Get(request.Request.Context(), types.NamespacedName{Name: request.PathParameter("version")}, &extensionVersion); err != nil {
+		api.HandleError(response, request, err)
+		return
+	}
+
+	if extensionVersion.Spec.ChartDataRef != nil {
+		configMap := &corev1.ConfigMap{}
+		if err := h.cache.Get(request.Request.Context(), types.NamespacedName{Namespace: extensionVersion.Spec.ChartDataRef.Namespace, Name: extensionVersion.Spec.ChartDataRef.Name}, configMap); err != nil {
+			api.HandleInternalError(response, request, err)
+			return
+		}
+		data := configMap.BinaryData[extensionVersion.Spec.ChartDataRef.Key]
+		if data == nil {
+			response.WriteEntity([]interface{}{})
+			return
+		}
+		files, err := loader.LoadArchiveFiles(bytes.NewReader(data))
+		if err != nil {
+			api.HandleInternalError(response, request, err)
+			return
+		}
+		response.WriteEntity(files)
+		return
+	}
+
+	chartURL, err := url.Parse(extensionVersion.Spec.ChartURL)
+	if err != nil {
+		api.HandleInternalError(response, request, err)
+		return
+	}
+
+	repo := &corev1alpha1.Repository{}
+	if extensionVersion.Spec.Repository != "" {
+		if err := h.cache.Get(request.Request.Context(), types.NamespacedName{Name: extensionVersion.Spec.Repository}, repo); err != nil {
+			api.HandleInternalError(response, request, err)
+			return
+		}
+	}
+
+	var chartGetter getter.Getter
+	switch chartURL.Scheme {
+	case registry.OCIScheme:
+		opts := make([]getter.Option, 0)
+		opts = append(opts, getter.WithInsecureSkipVerifyTLS(true))
+		if repo.Spec.BasicAuth != nil {
+			opts = append(opts, getter.WithBasicAuth(repo.Spec.BasicAuth.Username, repo.Spec.BasicAuth.Password))
+		}
+		chartGetter, err = getter.NewOCIGetter(opts...)
+	case "http", "https":
+		options := make([]getter.Option, 0)
+		if chartURL.Scheme == "https" {
+			options = append(options, getter.WithInsecureSkipVerifyTLS(true))
+		}
+		if repo.Spec.BasicAuth != nil {
+			options = append(options, getter.WithBasicAuth(repo.Spec.BasicAuth.Username, repo.Spec.BasicAuth.Password))
+		}
+		chartGetter, err = getter.NewHTTPGetter(options...)
+	}
+	if err != nil {
+		api.HandleInternalError(response, request, fmt.Errorf("failed to create chart getter: %v", err))
+		return
+	}
+
+	data, err := chartGetter.Get(extensionVersion.Spec.ChartURL)
+	if err != nil {
+		api.HandleInternalError(response, request, err)
+		return
+	}
+
+	files, err := loader.LoadArchiveFiles(data)
+	if err != nil {
+		api.HandleInternalError(response, request, err)
+		return
+	}
+
+	_ = response.WriteEntity(files)
+}

pkg/kapis/package/v1alpha1/register.go

@@ -0,0 +1,46 @@
+/*
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
+ */
+
+package v1alpha1
+
+import (
+	"net/http"
+
+	"github.com/emicklei/go-restful/v3"
+	"helm.sh/helm/v3/pkg/chart/loader"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	runtimeclient "sigs.k8s.io/controller-runtime/pkg/client"
+
+	"kubesphere.io/kubesphere/pkg/api"
+	"kubesphere.io/kubesphere/pkg/apiserver/rest"
+	"kubesphere.io/kubesphere/pkg/apiserver/runtime"
+)
+
+const (
+	GroupName = "package.kubesphere.io"
+	Version   = "v1alpha1"
+)
+
+var GroupVersion = schema.GroupVersion{Group: GroupName, Version: Version}
+
+func NewHandler(cache runtimeclient.Reader) rest.Handler {
+	return &handler{cache: cache}
+}
+
+func NewFakeHandler() rest.Handler {
+	return &handler{}
+}
+
+func (h *handler) AddToContainer(container *restful.Container) error {
+	ws := runtime.NewWebService(GroupVersion)
+	ws.Route(ws.GET("/extensionversions/{version}/files").
+		To(h.ListFiles).
+		Doc("List all files").
+		Operation("list-extension-version-files").
+		Param(ws.PathParameter("version", "The specified extension version name.")).
+		Returns(http.StatusOK, api.StatusOK, []loader.BufferedFile{}))
+	container.Add(ws)
+	return nil
+}