feat: add imagesearch provider (#6449)

* feat: add imagesearch provider



* update



* update



* update



* update url and queries



* add func getProviderTypeByHost



---------

Signed-off-by: wenhaozhou <wenhaozhou@yunify.com>
Signed-off-by: hongming <coder.scala@gmail.com>
Co-authored-by: wenhaozhou <wenhaozhou@yunify.com>

pkg/models/registries/imagesearch/registry_provider.go

@@ -0,0 +1,84 @@
+/*
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
+ */
+
+package imagesearch
+
+import (
+	"context"
+
+	jsoniter "github.com/json-iterator/go"
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/types"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+)
+
+const (
+	HostDockerIo = "https://docker.io"
+)
+
+var (
+	searchProviderFactories = make(map[string]SearchProviderFactory)
+)
+
+type SearchProvider interface {
+	Search(imageName string, config SearchConfig) (*Results, error)
+}
+
+type Results struct {
+	Total   int64    `json:"total"`
+	Entries []string `json:"entries"`
+}
+
+type SearchConfig struct {
+	Host         string
+	ProviderType string
+	Username     string
+	Password     string
+}
+
+type SearchProviderFactory interface {
+	Type() string
+	Create(options map[string]interface{}) (SearchProvider, error)
+}
+
+func RegistrySearchProvider(factory SearchProviderFactory) {
+	searchProviderFactories[factory.Type()] = factory
+}
+
+type SecretGetter interface {
+	GetSecretConfig(ctx context.Context, name, namespace string) (*SearchConfig, error)
+}
+
+func NewSecretGetter(reader client.Reader) SecretGetter {
+	return &secretGetter{reader}
+}
+
+type secretGetter struct {
+	client.Reader
+}
+
+// {"auths":{"https://harbor.172.31.19.17.nip.io":{"username":"admin","password":"Harbor12345","email":"","auth":"YWRtaW46SGFyYm9yMTIzNDU="}}}
+
+func (s *secretGetter) GetSecretConfig(ctx context.Context, name, namespace string) (*SearchConfig, error) {
+	secret := &corev1.Secret{}
+	err := s.Get(ctx, types.NamespacedName{Namespace: namespace, Name: name}, secret)
+	if err != nil {
+		return nil, err
+	}
+	provider := secret.Annotations[SecretTypeImageSearchProvider]
+
+	data := secret.Data[".dockerconfigjson"]
+	auths := jsoniter.Get(data, "auths")
+
+	host := auths.Keys()[0]
+	username := auths.Get(host, "username").ToString()
+	password := auths.Get(host, "password").ToString()
+	return &SearchConfig{
+		Host:         host,
+		ProviderType: provider,
+		Username:     username,
+		Password:     password,
+	}, nil
+}