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config.go
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config.go
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// Copyright 2017 The Kubernetes 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 plugin
import (
"net/http"
"github.com/emicklei/go-restful/v3"
"github.com/ogsyoo/dashboard/v2/src/app/backend/handler/parser"
apiErrors "k8s.io/apimachinery/pkg/api/errors"
)
// Config holds the information required by the frontend application to bootstrap.
type Config struct {
Status int32 `json:"status"`
PluginMetadata []Metadata `json:"plugins"`
Errors []error `json:"errors,omitempty"`
}
// Metadata holds least possible plugin information for Config.
type Metadata struct {
Name string `json:"name"`
Path string `json:"path"`
Dependencies []string `json:"dependencies"`
}
func toPluginMetadata(vs []Plugin, f func(plugin Plugin) Metadata) []Metadata {
vsm := make([]Metadata, len(vs))
for i, v := range vs {
vsm[i] = f(v)
}
return vsm
}
func (h *Handler) handleConfig(request *restful.Request, response *restful.Response) {
pluginClient, err := h.cManager.PluginClient(request)
cfg := Config{Status: http.StatusOK, PluginMetadata: []Metadata{}, Errors: []error{}}
if err != nil {
cfg.Status = statusCodeFromError(err)
cfg.Errors = append(cfg.Errors, err)
response.WriteHeaderAndEntity(http.StatusOK, cfg)
return
}
dataSelect := parser.ParseDataSelectPathParameter(request)
result, err := GetPluginList(pluginClient, "", dataSelect)
if err != nil {
cfg.Status = statusCodeFromError(err)
cfg.Errors = append(cfg.Errors, err)
response.WriteHeaderAndEntity(http.StatusOK, cfg)
return
}
if result != nil && len(result.Errors) > 0 {
cfg.Status = statusCodeFromError(result.Errors[0])
cfg.Errors = append(cfg.Errors, result.Errors...)
response.WriteHeaderAndEntity(http.StatusOK, cfg)
return
}
cfg.PluginMetadata = toPluginMetadata(result.Items, func(plugin Plugin) Metadata {
return Metadata{
Name: plugin.Name,
Path: plugin.Path,
Dependencies: plugin.Dependencies,
}
})
cfg.Errors = result.Errors
response.WriteHeaderAndEntity(http.StatusOK, cfg)
}
func statusCodeFromError(err error) int32 {
if statusError, ok := err.(*apiErrors.StatusError); ok {
return statusError.Status().Code
}
return http.StatusUnprocessableEntity
}