Ejemplo n.º 1
0
func (*agentEntityWatcherSuite) TestWatch(c *gc.C) {
	st := &fakeState{
		entities: map[string]entityWithError{
			"x0": &fakeAgentEntityWatcher{fetchError: "x0 fails"},
			"x1": &fakeAgentEntityWatcher{},
			"x2": &fakeAgentEntityWatcher{},
		},
	}
	getCanWatch := func() (common.AuthFunc, error) {
		return func(tag string) bool {
			switch tag {
			case "x0", "x1":
				return true
			}
			return false
		}, nil
	}
	resources := common.NewResources()
	a := common.NewAgentEntityWatcher(st, resources, getCanWatch)
	entities := params.Entities{[]params.Entity{
		{"x0"}, {"x1"}, {"x2"}, {"x3"},
	}}
	result, err := a.Watch(entities)
	c.Assert(err, gc.IsNil)
	c.Assert(result, gc.DeepEquals, params.NotifyWatchResults{
		Results: []params.NotifyWatchResult{
			{Error: &params.Error{Message: "x0 fails"}},
			{"1", nil},
			{Error: apiservertesting.ErrUnauthorized},
			{Error: apiservertesting.ErrUnauthorized},
		},
	})
}
Ejemplo n.º 2
0
func (*agentEntityWatcherSuite) TestWatchError(c *gc.C) {
	getCanWatch := func() (common.AuthFunc, error) {
		return nil, fmt.Errorf("pow")
	}
	resources := common.NewResources()
	a := common.NewAgentEntityWatcher(
		&fakeState{},
		resources,
		getCanWatch,
	)
	_, err := a.Watch(params.Entities{[]params.Entity{{"x0"}}})
	c.Assert(err, gc.ErrorMatches, "pow")
}
Ejemplo n.º 3
0
func (*agentEntityWatcherSuite) TestWatchNoArgsNoError(c *gc.C) {
	getCanWatch := func() (common.AuthFunc, error) {
		return nil, fmt.Errorf("pow")
	}
	resources := common.NewResources()
	a := common.NewAgentEntityWatcher(
		&fakeState{},
		resources,
		getCanWatch,
	)
	result, err := a.Watch(params.Entities{})
	c.Assert(err, gc.IsNil)
	c.Assert(result.Results, gc.HasLen, 0)
}
Ejemplo n.º 4
0
// NewMachinerAPI creates a new instance of the Machiner API.
func NewMachinerAPI(st *state.State, resources *common.Resources, authorizer common.Authorizer) (*MachinerAPI, error) {
	if !authorizer.AuthMachineAgent() {
		return nil, common.ErrPerm
	}
	getCanModify := func() (common.AuthFunc, error) {
		return authorizer.AuthOwner, nil
	}
	getCanRead := func() (common.AuthFunc, error) {
		return authorizer.AuthOwner, nil
	}
	return &MachinerAPI{
		LifeGetter:         common.NewLifeGetter(st, getCanRead),
		StatusSetter:       common.NewStatusSetter(st, getCanModify),
		DeadEnsurer:        common.NewDeadEnsurer(st, getCanModify),
		AgentEntityWatcher: common.NewAgentEntityWatcher(st, resources, getCanRead),
		APIAddresser:       common.NewAPIAddresser(st, resources),
		st:                 st,
		auth:               authorizer,
		getCanModify:       getCanModify,
	}, nil
}
Ejemplo n.º 5
0
// NewUniterAPI creates a new instance of the Uniter API.
func NewUniterAPI(st *state.State, resources *common.Resources, authorizer common.Authorizer) (*UniterAPI, error) {
	if !authorizer.AuthUnitAgent() {
		return nil, common.ErrPerm
	}
	accessUnit := func() (common.AuthFunc, error) {
		return authorizer.AuthOwner, nil
	}
	accessService := func() (common.AuthFunc, error) {
		unit, ok := authorizer.GetAuthEntity().(*state.Unit)
		if !ok {
			panic("authenticated entity is not a unit")
		}
		return func(tag string) bool {
			return tag == names.ServiceTag(unit.ServiceName())
		}, nil
	}
	accessUnitOrService := common.AuthEither(accessUnit, accessService)
	// Uniter can always watch for environ changes.
	getCanWatch := common.AuthAlways(true)
	// Uniter can not get the secrets.
	getCanReadSecrets := common.AuthAlways(false)
	return &UniterAPI{
		LifeGetter:         common.NewLifeGetter(st, accessUnitOrService),
		StatusSetter:       common.NewStatusSetter(st, accessUnit),
		DeadEnsurer:        common.NewDeadEnsurer(st, accessUnit),
		AgentEntityWatcher: common.NewAgentEntityWatcher(st, resources, accessUnitOrService),
		APIAddresser:       common.NewAPIAddresser(st, resources),
		EnvironWatcher:     common.NewEnvironWatcher(st, resources, getCanWatch, getCanReadSecrets),

		st:            st,
		auth:          authorizer,
		resources:     resources,
		accessUnit:    accessUnit,
		accessService: accessService,
	}, nil
}
Ejemplo n.º 6
0
// NewFirewallerAPI creates a new server-side FirewallerAPI facade.
func NewFirewallerAPI(
	st *state.State,
	resources *common.Resources,
	authorizer common.Authorizer,
) (*FirewallerAPI, error) {
	if !authorizer.AuthEnvironManager() {
		// Firewaller must run as environment manager.
		return nil, common.ErrPerm
	}
	// Set up the various authorization checkers.
	accessUnit := getAuthFuncForTagKind(names.UnitTagKind)
	accessService := getAuthFuncForTagKind(names.ServiceTagKind)
	accessMachine := getAuthFuncForTagKind(names.MachineTagKind)
	accessEnviron := getAuthFuncForTagKind("")
	accessUnitOrService := common.AuthEither(accessUnit, accessService)
	accessUnitServiceOrMachine := common.AuthEither(accessUnitOrService, accessMachine)

	// Life() is supported for units, services or machines.
	lifeGetter := common.NewLifeGetter(
		st,
		accessUnitServiceOrMachine,
	)
	// EnvironConfig() and WatchForEnvironConfigChanges() are allowed
	// with unrestriced access.
	environWatcher := common.NewEnvironWatcher(
		st,
		resources,
		accessEnviron,
		accessEnviron,
	)
	// Watch() is supported for units or services.
	entityWatcher := common.NewAgentEntityWatcher(
		st,
		resources,
		accessUnitOrService,
	)
	// WatchUnits() is supported for machines.
	unitsWatcher := common.NewUnitsWatcher(st,
		resources,
		accessMachine,
	)
	// WatchEnvironMachines() is allowed with unrestricted access.
	machinesWatcher := common.NewEnvironMachinesWatcher(
		st,
		resources,
		accessEnviron,
	)
	// InstanceId() is supported for machines.
	instanceIdGetter := common.NewInstanceIdGetter(
		st,
		accessMachine,
	)
	return &FirewallerAPI{
		LifeGetter:             lifeGetter,
		EnvironWatcher:         environWatcher,
		AgentEntityWatcher:     entityWatcher,
		UnitsWatcher:           unitsWatcher,
		EnvironMachinesWatcher: machinesWatcher,
		InstanceIdGetter:       instanceIdGetter,
		st:                     st,
		resources:              resources,
		authorizer:             authorizer,
		accessUnit:             accessUnit,
		accessService:          accessService,
	}, nil
}