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scopes.go
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/
scopes.go
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// Copyright 2022 Dimitrij Drus <dadrus@gmx.de>
//
// 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.
//
// SPDX-License-Identifier: Apache-2.0
package oauth2
import (
"strings"
"github.com/goccy/go-json"
"github.com/dadrus/heimdall/internal/heimdall"
"github.com/dadrus/heimdall/internal/x/errorchain"
)
// Scopes represents the scopes that the token is granted.
type Scopes []string
// UnmarshalJSON reads scopes from its JSON representation.
func (s *Scopes) UnmarshalJSON(b []byte) error {
var v interface{}
if err := json.Unmarshal(b, &v); err != nil {
return errorchain.NewWithMessage(heimdall.ErrConfiguration, "failed to unmarshal scopes").CausedBy(err)
}
switch value := v.(type) {
case string:
*s = strings.Split(value, " ")
case []interface{}:
array := make([]string, len(value))
for idx, val := range value {
s, ok := val.(string)
if !ok {
return errorchain.NewWithMessage(heimdall.ErrConfiguration, "failed to parse scopes array")
}
array[idx] = s
}
*s = array
default:
return errorchain.NewWithMessage(heimdall.ErrConfiguration, "unexpected content for scopes")
}
return nil
}