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: ¶ms.Error{Message: "x0 fails"}},
{"1", nil},
{Error: apiservertesting.ErrUnauthorized},
{Error: apiservertesting.ErrUnauthorized},
},
})
}
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")
}
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)
}
// 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
}
// 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.NewServiceTag(unit.ServiceName()).String()
}, 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
}
// 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
}