Пример #1
0
// NewMetricsManagerAPI creates a new API endpoint for calling metrics manager functions.
func NewMetricsManagerAPI(
	st *state.State,
	resources facade.Resources,
	authorizer facade.Authorizer,
	clock clock.Clock,
) (*MetricsManagerAPI, error) {
	if !(authorizer.AuthMachineAgent() && authorizer.AuthModelManager()) {
		return nil, common.ErrPerm
	}

	// Allow access only to the current environment.
	accessEnviron := func() (common.AuthFunc, error) {
		return func(tag names.Tag) bool {
			if tag == nil {
				return false
			}
			return tag == st.ModelTag()
		}, nil
	}

	return &MetricsManagerAPI{
		state:         st,
		accessEnviron: accessEnviron,
		clock:         clock,
	}, nil
}
Пример #2
0
func newUndertakerAPI(st State, resources facade.Resources, authorizer facade.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
}
Пример #3
0
Файл: facade.go Проект: bac/juju
// NewFacade creates a new authorized Facade.
func NewFacade(backend Backend, res facade.Resources, auth facade.Authorizer) (*Facade, error) {
	if !auth.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &Facade{
		backend:   backend,
		resources: res,
	}, nil
}
Пример #4
0
// NewInstancePollerAPI creates a new server-side InstancePoller API
// facade.
func NewInstancePollerAPI(
	st *state.State,
	resources facade.Resources,
	authorizer facade.Authorizer,
	clock clock.Clock,
) (*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,
		clock:                clock,
	}, nil
}
Пример #5
0
// 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 facade.Authorizer) (*Facade, error) {
	if !auth.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &Facade{
		auth:    auth,
		model:   backend.ModelTag(),
		claimer: backend.SingularClaimer(),
	}, nil
}
Пример #6
0
func NewDiscoverSpacesAPIWithBacking(st networkingcommon.NetworkBacking, resources facade.Resources, authorizer facade.Authorizer) (*DiscoverSpacesAPI, error) {
	if !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &DiscoverSpacesAPI{
		st:         st,
		authorizer: authorizer,
		resources:  resources,
	}, nil
}
Пример #7
0
// NewCharmRevisionUpdaterAPI creates a new server-side charmrevisionupdater API end point.
func NewCharmRevisionUpdaterAPI(
	st *state.State,
	resources facade.Resources,
	authorizer facade.Authorizer,
) (*CharmRevisionUpdaterAPI, error) {
	if !authorizer.AuthMachineAgent() && !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &CharmRevisionUpdaterAPI{
		state: st, resources: resources, authorizer: authorizer}, nil
}
Пример #8
0
// NewHighAvailabilityAPI creates a new server-side highavailability API end point.
func NewHighAvailabilityAPI(st *state.State, resources facade.Resources, authorizer facade.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
}
Пример #9
0
// NewCleanerAPI creates a new instance of the Cleaner API.
func NewCleanerAPI(
	st *state.State,
	res facade.Resources,
	authorizer facade.Authorizer,
) (*CleanerAPI, error) {
	if !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &CleanerAPI{
		st:        getState(st),
		resources: res,
	}, nil
}
Пример #10
0
// NewAPI implements the API used by the machine undertaker worker to
// find out what provider-level resources need to be cleaned up when a
// machine goes away.
func NewAPI(backend Backend, resources facade.Resources, authorizer facade.Authorizer) (*API, error) {
	if !authorizer.AuthModelManager() {
		return nil, errors.Trace(common.ErrPerm)
	}

	api := &API{
		backend:   backend,
		resources: resources,
		canManageModel: func(modelUUID string) bool {
			return modelUUID == authorizer.ConnectedModel()
		},
	}
	return api, nil
}
Пример #11
0
// createAPI returns a new image metadata API facade.
func createAPI(
	st metadataAcess,
	newEnviron func() (environs.Environ, error),
	resources facade.Resources,
	authorizer facade.Authorizer,
) (*API, error) {
	if !authorizer.AuthClient() && !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}

	return &API{
		metadata:   st,
		newEnviron: newEnviron,
		authorizer: authorizer,
	}, nil
}
Пример #12
0
Файл: facade.go Проект: bac/juju
// NewAPI creates a new API server endpoint for the model migration
// master worker.
func NewAPI(
	backend Backend,
	precheckBackend migration.PrecheckBackend,
	resources facade.Resources,
	authorizer facade.Authorizer,
) (*API, error) {
	if !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	return &API{
		backend:         backend,
		precheckBackend: precheckBackend,
		authorizer:      authorizer,
		resources:       resources,
	}, nil
}
Пример #13
0
Файл: facade.go Проект: bac/juju
func NewFacade(backend Backend, resources facade.Resources, authorizer facade.Authorizer) (*Facade, error) {
	if !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	expect := names.NewModelTag(backend.ModelUUID())
	getCanAccess := func() (common.AuthFunc, error) {
		return func(tag names.Tag) bool {
			return tag == expect
		}, nil
	}
	life := common.NewLifeGetter(backend, getCanAccess)
	watch := common.NewAgentEntityWatcher(backend, resources, getCanAccess)
	return &Facade{
		LifeGetter:         life,
		AgentEntityWatcher: watch,
	}, nil
}
Пример #14
0
// NewKeyManagerAPI creates a new server-side keyupdater API end point.
func NewKeyManagerAPI(st *state.State, resources facade.Resources, authorizer facade.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
}
Пример #15
0
// NewProvisionerAPI creates a new server-side ProvisionerAPI facade.
func NewProvisionerAPI(st *state.State, resources facade.Resources, authorizer facade.Authorizer) (*ProvisionerAPI, error) {
	if !authorizer.AuthMachineAgent() && !authorizer.AuthModelManager() {
		return nil, common.ErrPerm
	}
	getAuthFunc := func() (common.AuthFunc, error) {
		isModelManager := authorizer.AuthModelManager()
		isMachineAgent := authorizer.AuthMachineAgent()
		authEntityTag := authorizer.GetAuthTag()

		return func(tag names.Tag) bool {
			if isMachineAgent && tag == authEntityTag {
				// A machine agent can always access its own machine.
				return true
			}
			switch tag := tag.(type) {
			case names.MachineTag:
				parentId := state.ParentId(tag.Id())
				if parentId == "" {
					// All top-level machines are accessible by the
					// environment manager.
					return isModelManager
				}
				// All containers with the authenticated machine as a
				// parent are accessible by it.
				// TODO(dfc) sometimes authEntity tag is nil, which is fine because nil is
				// only equal to nil, but it suggests someone is passing an authorizer
				// with a nil tag.
				return isMachineAgent && names.NewMachineTag(parentId) == authEntityTag
			default:
				return false
			}
		}, nil
	}
	getAuthOwner := func() (common.AuthFunc, error) {
		return authorizer.AuthOwner, nil
	}
	model, err := st.Model()
	if err != nil {
		return nil, err
	}
	configGetter := stateenvirons.EnvironConfigGetter{st}
	env, err := environs.GetEnviron(configGetter, environs.New)
	if err != nil {
		return nil, err
	}
	urlGetter := common.NewToolsURLGetter(model.UUID(), st)
	storageProviderRegistry := stateenvirons.NewStorageProviderRegistry(env)
	return &ProvisionerAPI{
		Remover:                 common.NewRemover(st, false, getAuthFunc),
		StatusSetter:            common.NewStatusSetter(st, getAuthFunc),
		StatusGetter:            common.NewStatusGetter(st, getAuthFunc),
		DeadEnsurer:             common.NewDeadEnsurer(st, getAuthFunc),
		PasswordChanger:         common.NewPasswordChanger(st, getAuthFunc),
		LifeGetter:              common.NewLifeGetter(st, getAuthFunc),
		StateAddresser:          common.NewStateAddresser(st),
		APIAddresser:            common.NewAPIAddresser(st, resources),
		ModelWatcher:            common.NewModelWatcher(st, resources, authorizer),
		ModelMachinesWatcher:    common.NewModelMachinesWatcher(st, resources, authorizer),
		ControllerConfigAPI:     common.NewControllerConfig(st),
		InstanceIdGetter:        common.NewInstanceIdGetter(st, getAuthFunc),
		ToolsFinder:             common.NewToolsFinder(configGetter, st, urlGetter),
		ToolsGetter:             common.NewToolsGetter(st, configGetter, st, urlGetter, getAuthOwner),
		st:                      st,
		resources:               resources,
		authorizer:              authorizer,
		configGetter:            configGetter,
		storageProviderRegistry: storageProviderRegistry,
		storagePoolManager:      poolmanager.New(state.NewStateSettings(st), storageProviderRegistry),
		getAuthFunc:             getAuthFunc,
	}, nil
}
Пример #16
0
// NewFirewallerAPI creates a new server-side FirewallerAPI facade.
func NewFirewallerAPI(
	st *state.State,
	resources facade.Resources,
	authorizer facade.Authorizer,
) (*FirewallerAPI, error) {
	if !authorizer.AuthModelManager() {
		// Firewaller must run as environment manager.
		return nil, common.ErrPerm
	}
	// Set up the various authorization checkers.
	accessEnviron := common.AuthFuncForTagKind(names.ModelTagKind)
	accessUnit := common.AuthFuncForTagKind(names.UnitTagKind)
	accessService := common.AuthFuncForTagKind(names.ApplicationTagKind)
	accessMachine := common.AuthFuncForTagKind(names.MachineTagKind)
	accessUnitOrService := common.AuthEither(accessUnit, accessService)
	accessUnitServiceOrMachine := common.AuthEither(accessUnitOrService, accessMachine)

	// Life() is supported for units, services or machines.
	lifeGetter := common.NewLifeGetter(
		st,
		accessUnitServiceOrMachine,
	)
	// ModelConfig() and WatchForModelConfigChanges() are allowed
	// with unrestriced access.
	modelWatcher := common.NewModelWatcher(
		st,
		resources,
		authorizer,
	)
	// Watch() is supported for applications only.
	entityWatcher := common.NewAgentEntityWatcher(
		st,
		resources,
		accessService,
	)
	// WatchUnits() is supported for machines.
	unitsWatcher := common.NewUnitsWatcher(st,
		resources,
		accessMachine,
	)
	// WatchModelMachines() is allowed with unrestricted access.
	machinesWatcher := common.NewModelMachinesWatcher(
		st,
		resources,
		authorizer,
	)
	// InstanceId() is supported for machines.
	instanceIdGetter := common.NewInstanceIdGetter(
		st,
		accessMachine,
	)

	environConfigGetter := stateenvirons.EnvironConfigGetter{st}
	cloudSpecAPI := cloudspec.NewCloudSpec(environConfigGetter.CloudSpec, common.AuthFuncForTag(st.ModelTag()))

	return &FirewallerAPI{
		LifeGetter:           lifeGetter,
		ModelWatcher:         modelWatcher,
		AgentEntityWatcher:   entityWatcher,
		UnitsWatcher:         unitsWatcher,
		ModelMachinesWatcher: machinesWatcher,
		InstanceIdGetter:     instanceIdGetter,
		CloudSpecAPI:         cloudSpecAPI,
		st:                   st,
		resources:            resources,
		authorizer:           authorizer,
		accessUnit:           accessUnit,
		accessService:        accessService,
		accessMachine:        accessMachine,
		accessEnviron:        accessEnviron,
	}, nil
}
Пример #17
0
// NewStorageProvisionerAPI creates a new server-side StorageProvisionerAPI facade.
func NewStorageProvisionerAPI(
	st Backend,
	resources facade.Resources,
	authorizer facade.Authorizer,
	registry storage.ProviderRegistry,
	poolManager poolmanager.PoolManager,
) (*StorageProvisionerAPI, error) {
	if !authorizer.AuthMachineAgent() {
		return nil, common.ErrPerm
	}
	canAccessStorageMachine := func(tag names.MachineTag, allowEnvironManager bool) bool {
		authEntityTag := authorizer.GetAuthTag()
		if tag == authEntityTag {
			// Machine agents can access volumes
			// scoped to their own machine.
			return true
		}
		parentId := state.ParentId(tag.Id())
		if parentId == "" {
			return allowEnvironManager && authorizer.AuthModelManager()
		}
		// All containers with the authenticated
		// machine as a parent are accessible by it.
		return names.NewMachineTag(parentId) == authEntityTag
	}
	getScopeAuthFunc := func() (common.AuthFunc, error) {
		return func(tag names.Tag) bool {
			switch tag := tag.(type) {
			case names.ModelTag:
				// Environment managers can access all volumes
				// and filesystems scoped to the environment.
				isModelManager := authorizer.AuthModelManager()
				return isModelManager && tag == st.ModelTag()
			case names.MachineTag:
				return canAccessStorageMachine(tag, false)
			default:
				return false
			}
		}, nil
	}
	canAccessStorageEntity := func(tag names.Tag, allowMachines bool) bool {
		switch tag := tag.(type) {
		case names.VolumeTag:
			machineTag, ok := names.VolumeMachine(tag)
			if ok {
				return canAccessStorageMachine(machineTag, false)
			}
			return authorizer.AuthModelManager()
		case names.FilesystemTag:
			machineTag, ok := names.FilesystemMachine(tag)
			if ok {
				return canAccessStorageMachine(machineTag, false)
			}
			return authorizer.AuthModelManager()
		case names.MachineTag:
			return allowMachines && canAccessStorageMachine(tag, true)
		default:
			return false
		}
	}
	getStorageEntityAuthFunc := func() (common.AuthFunc, error) {
		return func(tag names.Tag) bool {
			return canAccessStorageEntity(tag, false)
		}, nil
	}
	getLifeAuthFunc := func() (common.AuthFunc, error) {
		return func(tag names.Tag) bool {
			return canAccessStorageEntity(tag, true)
		}, nil
	}
	getAttachmentAuthFunc := func() (func(names.MachineTag, names.Tag) bool, error) {
		// getAttachmentAuthFunc returns a function that validates
		// access by the authenticated user to an attachment.
		return func(machineTag names.MachineTag, attachmentTag names.Tag) bool {
			// Machine agents can access their own machine, and
			// machines contained. Environment managers can access
			// top-level machines.
			if !canAccessStorageMachine(machineTag, true) {
				return false
			}
			// Environment managers can access model-scoped
			// volumes and volumes scoped to their own machines.
			// Other machine agents can access volumes regardless
			// of their scope.
			if !authorizer.AuthModelManager() {
				return true
			}
			var machineScope names.MachineTag
			var hasMachineScope bool
			switch attachmentTag := attachmentTag.(type) {
			case names.VolumeTag:
				machineScope, hasMachineScope = names.VolumeMachine(attachmentTag)
			case names.FilesystemTag:
				machineScope, hasMachineScope = names.FilesystemMachine(attachmentTag)
			}
			return !hasMachineScope || machineScope == authorizer.GetAuthTag()
		}, nil
	}
	getMachineAuthFunc := func() (common.AuthFunc, error) {
		return func(tag names.Tag) bool {
			if tag, ok := tag.(names.MachineTag); ok {
				return canAccessStorageMachine(tag, true)
			}
			return false
		}, nil
	}
	getBlockDevicesAuthFunc := func() (common.AuthFunc, error) {
		return func(tag names.Tag) bool {
			if tag, ok := tag.(names.MachineTag); ok {
				return canAccessStorageMachine(tag, false)
			}
			return false
		}, nil
	}
	return &StorageProvisionerAPI{
		LifeGetter:       common.NewLifeGetter(st, getLifeAuthFunc),
		DeadEnsurer:      common.NewDeadEnsurer(st, getStorageEntityAuthFunc),
		InstanceIdGetter: common.NewInstanceIdGetter(st, getMachineAuthFunc),
		StatusSetter:     common.NewStatusSetter(st, getStorageEntityAuthFunc),

		st:                       st,
		resources:                resources,
		authorizer:               authorizer,
		registry:                 registry,
		poolManager:              poolManager,
		getScopeAuthFunc:         getScopeAuthFunc,
		getStorageEntityAuthFunc: getStorageEntityAuthFunc,
		getAttachmentAuthFunc:    getAttachmentAuthFunc,
		getMachineAuthFunc:       getMachineAuthFunc,
		getBlockDevicesAuthFunc:  getBlockDevicesAuthFunc,
	}, nil
}