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disownDevice.go
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/
disownDevice.go
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// ************************************************************************
// Copyright (C) 2022 plgd.dev, s.r.o.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ************************************************************************
package core
import (
"context"
"errors"
"fmt"
"github.com/google/uuid"
"github.com/plgd-dev/device/v2/pkg/net/coap"
"github.com/plgd-dev/device/v2/schema"
"github.com/plgd-dev/device/v2/schema/pstat"
)
func connectionWasClosed(ctx context.Context, err error) bool {
if ctx.Err() == nil && errors.Is(err, context.Canceled) {
return true
}
return false
}
// Disown removes ownership of device
func (d *Device) Disown(
ctx context.Context,
links schema.ResourceLinks,
options ...coap.OptionFunc,
) error {
cannotDisownErr := func(err error) error {
return fmt.Errorf("cannot disown: %w", err)
}
ownership, err := d.GetOwnership(ctx, links)
if err != nil {
return cannotDisownErr(err)
}
sdkID, err := d.GetSdkOwnerID()
if err != nil {
return cannotDisownErr(err)
}
if ownership.OwnerID != sdkID {
if ownership.OwnerID == uuid.Nil.String() {
return nil
}
return MakePermissionDenied(cannotDisownErr(fmt.Errorf("device is owned by %v, not by %v", ownership.OwnerID, sdkID)))
}
setResetProvisionState := pstat.ProvisionStatusUpdateRequest{
DeviceOnboardingState: &pstat.DeviceOnboardingState{
CurrentOrPendingOperationalState: pstat.OperationalState_RESET,
},
}
link, err := GetResourceLink(links, pstat.ResourceURI)
if err != nil {
return MakeInternal(cannotDisownErr(err))
}
link.Endpoints = link.Endpoints.FilterSecureEndpoints()
err = d.UpdateResource(ctx, link, setResetProvisionState, nil, options...)
if err != nil {
if connectionWasClosed(ctx, err) {
// connection was closed by disown so we don't report error just log it.
d.cfg.Logger.Debug(fmt.Errorf("device disown error: %w", err).Error())
return nil
}
return MakeInternal(cannotDisownErr(err))
}
if errC := d.Close(ctx); errC != nil {
d.cfg.Logger.Debug(fmt.Errorf("device disown error: %w", errC).Error())
}
return nil
}