// NewEnvironmentAPI creates a new instance of the Environment API.
func NewEnvironmentAPI(st *state.State, resources *common.Resources, authorizer common.Authorizer) (*EnvironmentAPI, error) {
// Can always watch for environ changes.
getCanWatch := common.AuthAlways(true)
// Does not get the secrets.
getCanReadSecrets := common.AuthAlways(false)
return &EnvironmentAPI{
EnvironWatcher: common.NewEnvironWatcher(st, resources, getCanWatch, getCanReadSecrets),
}, nil
}
// NewProvisionerAPI creates a new server-side ProvisionerAPI facade.
func NewProvisionerAPI(
st *state.State,
resources *common.Resources,
authorizer common.Authorizer,
) (*ProvisionerAPI, error) {
if !authorizer.AuthMachineAgent() && !authorizer.AuthEnvironManager() {
return nil, common.ErrPerm
}
getAuthFunc := func() (common.AuthFunc, error) {
isEnvironManager := authorizer.AuthEnvironManager()
isMachineAgent := authorizer.AuthMachineAgent()
authEntityTag := authorizer.GetAuthTag()
return func(tag string) bool {
if isMachineAgent && tag == authEntityTag {
// A machine agent can always access its own machine.
return true
}
t, err := names.ParseTag(tag, names.MachineTagKind)
if err != nil {
return false
}
parentId := state.ParentId(t.Id())
if parentId == "" {
// All top-level machines are accessible by the
// environment manager.
return isEnvironManager
}
// All containers with the authenticated machine as a
// parent are accessible by it.
return isMachineAgent && names.NewMachineTag(parentId).String() == authEntityTag
}, nil
}
// Both provisioner types can watch the environment.
getCanWatch := common.AuthAlways(true)
// Only the environment provisioner can read secrets.
getCanReadSecrets := common.AuthAlways(authorizer.AuthEnvironManager())
return &ProvisionerAPI{
Remover: common.NewRemover(st, false, getAuthFunc),
StatusSetter: common.NewStatusSetter(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),
ToolsGetter: common.NewToolsGetter(st, getAuthFunc),
EnvironWatcher: common.NewEnvironWatcher(st, resources, getCanWatch, getCanReadSecrets),
EnvironMachinesWatcher: common.NewEnvironMachinesWatcher(st, resources, getCanReadSecrets),
InstanceIdGetter: common.NewInstanceIdGetter(st, getAuthFunc),
st: st,
resources: resources,
authorizer: authorizer,
getAuthFunc: getAuthFunc,
getCanWatchMachines: getCanReadSecrets,
}, nil
}
// NewRsyslogAPI creates a new instance of the Rsyslog API.
func NewRsyslogAPI(st *state.State, resources *common.Resources, authorizer common.Authorizer) (*RsyslogAPI, error) {
if !authorizer.AuthMachineAgent() && !authorizer.AuthUnitAgent() {
return nil, common.ErrPerm
}
// Can always watch for environ changes.
getCanWatch := common.AuthAlways(true)
// Does not get the secrets.
getCanReadSecrets := common.AuthAlways(false)
return &RsyslogAPI{
EnvironWatcher: common.NewEnvironWatcher(st, resources, getCanWatch, getCanReadSecrets),
st: st,
authorizer: authorizer,
resources: resources,
canModify: authorizer.AuthEnvironManager(),
StateAddresser: common.NewStateAddresser(st),
}, nil
}
// NewClient creates a new instance of the Client Facade.
func NewClient(st *state.State, resources *common.Resources, authorizer common.Authorizer) (*Client, error) {
if !authorizer.AuthClient() {
return nil, common.ErrPerm
}
return &Client{api: &API{
state: st,
auth: authorizer,
resources: resources,
statusSetter: common.NewStatusSetter(st, common.AuthAlways(true)),
}}, nil
}
func NewUserManagerAPI(
st *state.State,
authorizer common.Authorizer,
) (*UserManagerAPI, error) {
if !authorizer.AuthClient() {
return nil, common.ErrPerm
}
// TODO(mattyw) - replace stub with real canWrite function
getCanWrite := common.AuthAlways(true)
// TODO(waigani) - replace stub with real canRead function
getCanRead := common.AuthAlways(true)
return &UserManagerAPI{
state: st,
authorizer: authorizer,
getCanWrite: getCanWrite,
getCanRead: getCanRead},
nil
}
// NewAPI creates a new instance of the Client API.
func NewAPI(st *state.State, resources *common.Resources, authorizer common.Authorizer) *API {
r := &API{
state: st,
auth: authorizer,
resources: resources,
statusSetter: common.NewStatusSetter(st, common.AuthAlways(true)),
}
r.client = &Client{
api: r,
}
return r
}
// 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
}