/
base.go
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/
base.go
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// 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 api
import (
"context"
"encoding/json"
"fmt"
"net/http"
"sigs.k8s.io/yaml"
"github.com/goharbor/harbor/src/common/api"
"github.com/goharbor/harbor/src/common/models"
"github.com/goharbor/harbor/src/common/rbac"
rbac_project "github.com/goharbor/harbor/src/common/rbac/project"
"github.com/goharbor/harbor/src/common/security"
"github.com/goharbor/harbor/src/common/utils"
"github.com/goharbor/harbor/src/controller/p2p/preheat"
projectcontroller "github.com/goharbor/harbor/src/controller/project"
"github.com/goharbor/harbor/src/lib/errors"
"github.com/goharbor/harbor/src/lib/log"
"github.com/goharbor/harbor/src/pkg/scheduler"
)
const (
yamlFileContentType = "application/x-yaml"
userSessionKey = "user"
)
// BaseController ...
type BaseController struct {
api.BaseAPI
// SecurityCtx is the security context used to authN &authZ
SecurityCtx security.Context
// ProjectCtl is the project controller which abstracts the operations
// related to projects
ProjectCtl projectcontroller.Controller
}
// Prepare inits security context and project manager from request
// context
func (b *BaseController) Prepare() {
ctx, ok := security.FromContext(b.Context())
if !ok {
log.Errorf("failed to get security context")
b.SendInternalServerError(errors.New(""))
return
}
b.SecurityCtx = ctx
b.ProjectCtl = projectcontroller.Ctl
}
// RequireAuthenticated returns true when the request is authenticated
// otherwise send Unauthorized response and returns false
func (b *BaseController) RequireAuthenticated() bool {
if !b.SecurityCtx.IsAuthenticated() {
b.SendError(errors.UnauthorizedError(errors.New("Unauthorized")))
return false
}
return true
}
// HasProjectPermission returns true when the request has action permission on project subresource
func (b *BaseController) HasProjectPermission(projectIDOrName interface{}, action rbac.Action, subresource ...rbac.Resource) (bool, error) {
_, _, err := utils.ParseProjectIDOrName(projectIDOrName)
if err != nil {
return false, err
}
project, err := b.ProjectCtl.Get(b.Context(), projectIDOrName)
if err != nil {
return false, err
}
resource := rbac_project.NewNamespace(project.ProjectID).Resource(subresource...)
if !b.SecurityCtx.Can(b.Context(), action, resource) {
return false, nil
}
return true, nil
}
// RequireProjectAccess returns true when the request has action access on project subresource
// otherwise send UnAuthorized or Forbidden response and returns false
func (b *BaseController) RequireProjectAccess(projectIDOrName interface{}, action rbac.Action, subresource ...rbac.Resource) bool {
hasPermission, err := b.HasProjectPermission(projectIDOrName, action, subresource...)
if err != nil {
if errors.IsNotFoundErr(err) {
b.handleProjectNotFound(projectIDOrName)
} else {
b.SendError(err)
}
return false
}
if !hasPermission {
b.SendPermissionError()
return false
}
return true
}
// This should be called when a project is not found, if the caller is a system admin it returns 404.
// If it's regular user, it will render permission error
func (b *BaseController) handleProjectNotFound(projectIDOrName interface{}) {
if b.SecurityCtx.IsSysAdmin() {
b.SendNotFoundError(fmt.Errorf("project %v not found", projectIDOrName))
} else {
b.SendPermissionError()
}
}
// SendPermissionError is a shortcut for sending different http error based on authentication status.
func (b *BaseController) SendPermissionError() {
if !b.SecurityCtx.IsAuthenticated() {
b.SendUnAuthorizedError(errors.New("UnAuthorized"))
} else {
b.SendForbiddenError(errors.New(b.SecurityCtx.GetUsername()))
}
}
// WriteJSONData writes the JSON data to the client.
func (b *BaseController) WriteJSONData(object interface{}) {
b.Data["json"] = object
if err := b.ServeJSON(); err != nil {
log.Errorf("failed to serve json, %v", err)
b.SendInternalServerError(err)
return
}
}
// WriteYamlData writes the yaml data to the client.
func (b *BaseController) WriteYamlData(object interface{}) {
yData, err := yaml.Marshal(object)
if err != nil {
b.SendInternalServerError(err)
return
}
w := b.Ctx.ResponseWriter
w.Header().Set("Content-Type", yamlFileContentType)
w.WriteHeader(http.StatusOK)
_, _ = w.Write(yData)
}
// PopulateUserSession generates a new session ID and fill the user model in parm to the session
func (b *BaseController) PopulateUserSession(u models.User) {
err := b.SessionRegenerateID()
if err != nil {
log.Errorf("failed to generate a new session ID and fill the user mode to this session, error: %v", err)
b.SendError(err)
return
}
if err := b.SetSession(userSessionKey, u); err != nil {
log.Errorf("failed to set user into session, error: %v", err)
b.SendError(err)
return
}
}
// Init related objects/configurations for the API controllers
func Init() error {
p2pPreheatCallbackFun := func(ctx context.Context, p string) error {
param := &preheat.TriggerParam{}
if err := json.Unmarshal([]byte(p), param); err != nil {
return fmt.Errorf("failed to unmarshal the param: %v", err)
}
_, err := preheat.Enf.EnforcePolicy(ctx, param.PolicyID)
return err
}
err := scheduler.RegisterCallbackFunc(preheat.SchedulerCallback, p2pPreheatCallbackFun)
return err
}