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signIn.go
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signIn.go
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/****************************************************************************
*
* Copyright (c) 2024 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 cloud
import (
"context"
"errors"
"fmt"
"github.com/plgd-dev/device/v2/pkg/codec/cbor"
ocfCloud "github.com/plgd-dev/device/v2/pkg/ocf/cloud"
"github.com/plgd-dev/device/v2/schema/cloud"
"github.com/plgd-dev/go-coap/v3/message/codes"
)
var (
ErrMissingAccessToken = errors.New("access token missing")
ErrCannotSignIn = errors.New("cannot sign in")
)
func MakeSignInRequest(deviceID, userID, accessToken string) (ocfCloud.CoapSignInRequest, error) {
if accessToken == "" {
return ocfCloud.CoapSignInRequest{}, ErrMissingAccessToken
}
return ocfCloud.CoapSignInRequest{
DeviceID: deviceID,
UserID: userID,
AccessToken: accessToken,
Login: true,
}, nil
}
func errCannotSignIn(err error) error {
return fmt.Errorf("%w: %w", ErrCannotSignIn, err)
}
func (c *Manager) signIn(ctx context.Context) error {
client := c.getClient()
if client == nil {
return errCannotSignIn(errors.New("no connection"))
}
if c.isSignedIn() {
return nil
}
creds := c.getCreds()
signInReq, err := MakeSignInRequest(c.deviceID.String(), creds.UserID, creds.AccessToken)
if err != nil {
return errCannotSignIn(err)
}
req, err := newPostRequest(ctx, client, ocfCloud.SignIn, signInReq)
if err != nil {
return errCannotSignIn(err)
}
c.setProvisioningStatus(cloud.ProvisioningStatus_REGISTERING)
resp, err := client.Do(req)
if err != nil {
return errCannotSignIn(err)
}
if resp.Code() != codes.Changed {
if resp.Code() == codes.Unauthorized {
if creds.RefreshToken == "" {
c.cleanup()
} else {
c.forceRefreshToken = true
}
}
return errCannotSignIn(fmt.Errorf("unexpected status code %v", resp.Code()))
}
var signInResp ocfCloud.CoapSignInResponse
err = cbor.ReadFrom(resp.Body(), &signInResp)
if err != nil {
return errCannotSignIn(err)
}
c.updateCredsBySignInResponse(signInResp)
c.logger.Infof("signed in")
c.save()
return nil
}
func (c *Manager) updateCredsBySignInResponse(resp ocfCloud.CoapSignInResponse) {
c.private.mutex.Lock()
defer c.private.mutex.Unlock()
c.private.creds.ExpiresIn = resp.ExpiresIn
c.private.creds.ValidUntil = validUntil(resp.ExpiresIn)
c.private.signedIn = true
}