func (*unitsWatcherSuite) TestWatchUnits(c *gc.C) {
st := &fakeState{
entities: map[string]entityWithError{
"x0": &fakeUnitsWatcher{fetchError: "x0 fails"},
"x1": &fakeUnitsWatcher{initial: []string{"foo", "bar"}},
"x2": &fakeUnitsWatcher{},
},
}
getCanWatch := func() (common.AuthFunc, error) {
return func(tag string) bool {
switch tag {
case "x0", "x1":
return true
}
return false
}, nil
}
resources := common.NewResources()
w := common.NewUnitsWatcher(st, resources, getCanWatch)
entities := params.Entities{[]params.Entity{
{"x0"}, {"x1"}, {"x2"}, {"x3"},
}}
result, err := w.WatchUnits(entities)
c.Assert(err, gc.IsNil)
c.Assert(result, jc.DeepEquals, params.StringsWatchResults{
Results: []params.StringsWatchResult{
{Error: ¶ms.Error{Message: "x0 fails"}},
{"1", []string{"foo", "bar"}, nil},
{Error: apiservertesting.ErrUnauthorized},
{Error: apiservertesting.ErrUnauthorized},
},
})
}
func (*unitsWatcherSuite) TestWatchUnitsError(c *gc.C) {
getCanWatch := func() (common.AuthFunc, error) {
return nil, fmt.Errorf("pow")
}
resources := common.NewResources()
w := common.NewUnitsWatcher(
&fakeState{},
resources,
getCanWatch,
)
_, err := w.WatchUnits(params.Entities{[]params.Entity{{"x0"}}})
c.Assert(err, gc.ErrorMatches, "pow")
}
func (*unitsWatcherSuite) TestWatchNoArgsNoError(c *gc.C) {
getCanWatch := func() (common.AuthFunc, error) {
return nil, fmt.Errorf("pow")
}
resources := common.NewResources()
w := common.NewUnitsWatcher(
&fakeState{},
resources,
getCanWatch,
)
result, err := w.WatchUnits(params.Entities{})
c.Assert(err, gc.IsNil)
c.Assert(result.Results, gc.HasLen, 0)
}
// NewDeployerAPI creates a new server-side DeployerAPI facade.
func NewDeployerAPI(
st *state.State,
resources *common.Resources,
authorizer common.Authorizer,
) (*DeployerAPI, error) {
if !authorizer.AuthMachineAgent() {
return nil, common.ErrPerm
}
getAuthFunc := func() (common.AuthFunc, error) {
// Get all units of the machine and cache them.
thisMachineTag := authorizer.GetAuthTag()
units, err := getAllUnits(st, thisMachineTag)
if err != nil {
return nil, err
}
// Then we just check if the unit is already known.
return func(tag string) bool {
for _, unit := range units {
if names.UnitTag(unit) == tag {
return true
}
}
return false
}, nil
}
getCanWatch := func() (common.AuthFunc, error) {
return authorizer.AuthOwner, nil
}
return &DeployerAPI{
Remover: common.NewRemover(st, true, getAuthFunc),
PasswordChanger: common.NewPasswordChanger(st, getAuthFunc),
LifeGetter: common.NewLifeGetter(st, getAuthFunc),
StateAddresser: common.NewStateAddresser(st),
APIAddresser: common.NewAPIAddresser(st, resources),
UnitsWatcher: common.NewUnitsWatcher(st, resources, getCanWatch),
st: st,
resources: resources,
authorizer: authorizer,
}, nil
}
// 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
}