Golang Authorizer.AuthModelManager方法代碼示例

func newUndertakerAPI(st State, resources *common.Resources, authorizer common.Authorizer) (*UndertakerAPI, error) {
	if !authorizer.AuthMachineAgent() || !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	model, err := st.Model()
	if err != nil {
		return nil, errors.Trace(err)
	}
	getCanModifyModel := func() (common.AuthFunc, error) {
		return func(tag names.Tag) bool {
			if st.IsController() {
				return true
			}
			// Only the agent's model can be modified.
			modelTag, ok := tag.(names.ModelTag)
			if !ok {
				return false
			}
			return modelTag.Id() == model.UUID()
		}, nil
	}
	return &UndertakerAPI{
		st:           st,
		resources:    resources,
		StatusSetter: common.NewStatusSetter(st, getCanModifyModel),
	}, nil
}

// NewFacade creates a new authorized Facade.
func NewFacade(backend Backend, res *common.Resources, auth common.Authorizer) (*Facade, error) {
	if !auth.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &Facade{
		backend:   backend,
		resources: res,
	}, nil
}

func newUndertakerAPI(st State, resources *common.Resources, authorizer common.Authorizer) (*UndertakerAPI, error) {
	if !authorizer.AuthMachineAgent() || !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &UndertakerAPI{
		st:        st,
		resources: resources,
	}, nil
}

// NewResumerAPI creates a new instance of the Resumer API.
func NewResumerAPI(st *state.State, _ *common.Resources, authorizer common.Authorizer) (*ResumerAPI, error) {
	if !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &ResumerAPI{
		st:   getState(st),
		auth: authorizer,
	}, nil
}

// NewFacade returns a singular-controller API facade, backed by the supplied
// state, so long as the authorizer represents a controller machine.
func NewFacade(backend Backend, auth common.Authorizer) (*Facade, error) {
	if !auth.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &Facade{
		auth:    auth,
		model:   backend.ModelTag(),
		claimer: backend.SingularClaimer(),
	}, nil
}

func NewDiscoverSpacesAPIWithBacking(st networkingcommon.NetworkBacking, resources *common.Resources, authorizer common.Authorizer) (*DiscoverSpacesAPI, error) {
	if !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &DiscoverSpacesAPI{
		st:         st,
		authorizer: authorizer,
		resources:  resources,
	}, nil
}

// NewInstancePollerAPI creates a new server-side InstancePoller API
// facade.
func NewInstancePollerAPI(
	st *state.State,
	resources *common.Resources,
	authorizer common.Authorizer,
) (*InstancePollerAPI, error) {

	if !authorizer.AuthModelManager() {
		// InstancePoller must run as environment manager.
		return nil, common.ErrPerm
	}
	accessMachine := common.AuthFuncForTagKind(names.MachineTagKind)
	sti := getState(st)

	// Life() is supported for machines.
	lifeGetter := common.NewLifeGetter(
		sti,
		accessMachine,
	)
	// ModelConfig() and WatchForModelConfigChanges() are allowed
	// with unrestriced access.
	modelWatcher := common.NewModelWatcher(
		sti,
		resources,
		authorizer,
	)
	// WatchModelMachines() is allowed with unrestricted access.
	machinesWatcher := common.NewModelMachinesWatcher(
		sti,
		resources,
		authorizer,
	)
	// InstanceId() is supported for machines.
	instanceIdGetter := common.NewInstanceIdGetter(
		sti,
		accessMachine,
	)
	// Status() is supported for machines.
	statusGetter := common.NewStatusGetter(
		sti,
		accessMachine,
	)

	return &InstancePollerAPI{
		LifeGetter:           lifeGetter,
		ModelWatcher:         modelWatcher,
		ModelMachinesWatcher: machinesWatcher,
		InstanceIdGetter:     instanceIdGetter,
		StatusGetter:         statusGetter,
		st:                   sti,
		resources:            resources,
		authorizer:           authorizer,
		accessMachine:        accessMachine,
	}, nil
}

// NewCharmRevisionUpdaterAPI creates a new server-side charmrevisionupdater API end point.
func NewCharmRevisionUpdaterAPI(
	st *state.State,
	resources *common.Resources,
	authorizer common.Authorizer,
) (*CharmRevisionUpdaterAPI, error) {
	if !authorizer.AuthMachineAgent() && !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &CharmRevisionUpdaterAPI{
		state: st, resources: resources, authorizer: authorizer}, nil
}

// NewHighAvailabilityAPI creates a new server-side highavailability API end point.
func NewHighAvailabilityAPI(st *state.State, resources *common.Resources, authorizer common.Authorizer) (*HighAvailabilityAPI, error) {
	// Only clients and environment managers can access the high availability service.
	if !authorizer.AuthClient() && !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &HighAvailabilityAPI{
		state:      st,
		resources:  resources,
		authorizer: authorizer,
	}, nil
}

// NewCleanerAPI creates a new instance of the Cleaner API.
func NewCleanerAPI(
	st *state.State,
	res *common.Resources,
	authorizer common.Authorizer,
) (*CleanerAPI, error) {
	if !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &CleanerAPI{
		st:        getState(st),
		resources: res,
	}, nil
}

// createAPI returns a new image metadata API facade.
func createAPI(
	st metadataAcess,
	resources *common.Resources,
	authorizer common.Authorizer,
) (*API, error) {
	if !authorizer.AuthClient() && !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}

	return &API{
		metadata:   st,
		authorizer: authorizer,
	}, nil
}

// NewAPI creates a new API server endpoint for the model migration
// master worker.
func NewAPI(
	st *state.State,
	resources *common.Resources,
	authorizer common.Authorizer,
) (*API, error) {
	if !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &API{
		backend:    getBackend(st),
		authorizer: authorizer,
		resources:  resources,
	}, nil
}

// NewAddresserAPI creates a new server-side Addresser API facade.
func NewAddresserAPI(
	st *state.State,
	resources *common.Resources,
	authorizer common.Authorizer,
) (*AddresserAPI, error) {
	isModelManager := authorizer.AuthModelManager()
	if !isModelManager {
		// Addresser must run as model manager.
		return nil, common.ErrPerm
	}
	sti := getState(st)
	return &AddresserAPI{
		st:         sti,
		resources:  resources,
		authorizer: authorizer,
	}, nil
}

// NewKeyManagerAPI creates a new server-side keyupdater API end point.
func NewKeyManagerAPI(st *state.State, resources *common.Resources, authorizer common.Authorizer) (*KeyManagerAPI, error) {
	// Only clients and environment managers can access the key manager service.
	if !authorizer.AuthClient() && !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	env, err := st.Model()
	if err != nil {
		return nil, errors.Trace(err)
	}
	// For gccgo interface comparisons, we need a Tag.
	owner := names.Tag(env.Owner())
	// TODO(wallyworld) - replace stub with real canRead function
	// For now, only admins can read authorised ssh keys.
	canRead := func(user string) bool {
		// Are we a machine agent operating as the system identity?
		if user == config.JujuSystemKey {
			_, ismachinetag := authorizer.GetAuthTag().(names.MachineTag)
			return ismachinetag
		}
		return authorizer.GetAuthTag() == owner
	}
	// TODO(wallyworld) - replace stub with real canWrite function
	// For now, only admins can write authorised ssh keys for users.
	// Machine agents can write the juju-system-key.
	canWrite := func(user string) bool {
		// Are we a machine agent writing the Juju system key.
		if user == config.JujuSystemKey {
			_, ismachinetag := authorizer.GetAuthTag().(names.MachineTag)
			return ismachinetag
		}
		// No point looking to see if the user exists as we are not
		// yet storing keys on the user.
		return authorizer.GetAuthTag() == owner
	}
	return &KeyManagerAPI{
		state:      st,
		resources:  resources,
		authorizer: authorizer,
		canRead:    canRead,
		canWrite:   canWrite,
		check:      common.NewBlockChecker(st),
	}, nil
}

func newMigrationMasterWatcher(
	st *state.State,
	resources *common.Resources,
	auth common.Authorizer,
	id string,
) (interface{}, error) {
	if !auth.AuthModelManager() {
		return nil, common.ErrPerm
	}
	w, ok := resources.Get(id).(state.NotifyWatcher)
	if !ok {
		return nil, common.ErrUnknownWatcher
	}
	return &srvMigrationMasterWatcher{
		watcher:   w,
		id:        id,
		resources: resources,
		st:        migrationGetter(st),
	}, nil
}