3
0
corteza/system/service/application.go
2019-10-29 10:06:14 +01:00

121 lines
3.0 KiB
Go

package service
import (
"context"
"github.com/titpetric/factory"
"github.com/cortezaproject/corteza-server/pkg/permissions"
"github.com/cortezaproject/corteza-server/system/repository"
"github.com/cortezaproject/corteza-server/system/types"
)
type (
application struct {
db *factory.DB
ctx context.Context
ac applicationAccessController
application repository.ApplicationRepository
}
applicationAccessController interface {
CanCreateApplication(context.Context) bool
CanReadApplication(context.Context, *types.Application) bool
CanUpdateApplication(context.Context, *types.Application) bool
CanDeleteApplication(context.Context, *types.Application) bool
FilterReadableApplications(ctx context.Context) *permissions.ResourceFilter
}
ApplicationService interface {
With(ctx context.Context) ApplicationService
FindByID(applicationID uint64) (*types.Application, error)
Find(types.ApplicationFilter) (types.ApplicationSet, types.ApplicationFilter, error)
Create(application *types.Application) (*types.Application, error)
Update(application *types.Application) (*types.Application, error)
DeleteByID(id uint64) error
}
)
func Application(ctx context.Context) ApplicationService {
return (&application{
ac: DefaultAccessControl,
}).With(ctx)
}
func (svc *application) With(ctx context.Context) ApplicationService {
db := repository.DB(ctx)
return &application{
db: db,
ctx: ctx,
ac: svc.ac,
application: repository.Application(ctx, db),
}
}
func (svc *application) FindByID(ID uint64) (app *types.Application, err error) {
if ID == 0 {
return nil, ErrInvalidID
}
if app, err = svc.application.FindByID(ID); err != nil {
return nil, err
}
if !svc.ac.CanReadApplication(svc.ctx, app) {
return nil, ErrNoPermissions.withStack()
}
return app, nil
}
func (svc *application) Find(f types.ApplicationFilter) (types.ApplicationSet, types.ApplicationFilter, error) {
f.IsReadable = svc.ac.FilterReadableApplications(svc.ctx)
return svc.application.Find(f)
}
func (svc *application) Create(mod *types.Application) (*types.Application, error) {
if !svc.ac.CanCreateApplication(svc.ctx) {
return nil, ErrNoPermissions.withStack()
}
return svc.application.Create(mod)
}
func (svc *application) Update(mod *types.Application) (t *types.Application, err error) {
if !svc.ac.CanUpdateApplication(svc.ctx, mod) {
return nil, ErrNoPermissions.withStack()
}
return t, svc.db.Transaction(func() (err error) {
if t, err = svc.application.FindByID(mod.ID); err != nil {
return
}
// Assign changed values
t.Name = mod.Name
t.Enabled = mod.Enabled
t.Unify = mod.Unify
if t, err = svc.application.Update(t); err != nil {
return err
}
return nil
})
}
func (svc *application) DeleteByID(id uint64) error {
app := &types.Application{ID: id}
if !svc.ac.CanDeleteApplication(svc.ctx, app) {
return ErrNoPermissions.withStack()
}
return svc.application.DeleteByID(id)
}
var _ ApplicationService = &application{}