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/*
* Copyright © 2015-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
*
* 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.
*
* @author Aeneas Rekkas <aeneas+oss@aeneas.io>
* @copyright 2015-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
* @license Apache-2.0
*
*/
package oauth2
import (
"context"
"time"
"github.com/ory/fosite"
)
type HandleHelper struct {
AccessTokenStrategy AccessTokenStrategy
AccessTokenStorage AccessTokenStorage
AccessTokenLifespan time.Duration
RefreshTokenLifespan time.Duration
}
func (h *HandleHelper) IssueAccessToken(ctx context.Context, requester fosite.AccessRequester, responder fosite.AccessResponder) error {
token, signature, err := h.AccessTokenStrategy.GenerateAccessToken(ctx, requester)
if err != nil {
return err
} else if err := h.AccessTokenStorage.CreateAccessTokenSession(ctx, signature, requester.Sanitize([]string{})); err != nil {
return err
}
responder.SetAccessToken(token)
responder.SetTokenType("bearer")
responder.SetExpiresIn(getExpiresIn(requester, fosite.AccessToken, h.AccessTokenLifespan, time.Now().UTC()))
responder.SetScopes(requester.GetGrantedScopes())
return nil
}
func getExpiresIn(r fosite.Requester, key fosite.TokenType, defaultLifespan time.Duration, now time.Time) time.Duration {
if r.GetSession().GetExpiresAt(key).IsZero() {
return defaultLifespan
}
return time.Duration(r.GetSession().GetExpiresAt(key).UnixNano() - now.UnixNano())
}
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