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api_key.go
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api_key.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 authstrategy
import (
"context"
"crypto/sha256"
"net/http"
"github.com/dadrus/heimdall/internal/heimdall"
"github.com/dadrus/heimdall/internal/x/errorchain"
"github.com/dadrus/heimdall/internal/x/stringx"
)
type APIKey struct {
In string `mapstructure:"in" validate:"required,oneof=cookie header query"`
Name string `mapstructure:"name" validate:"required"`
Value string `mapstructure:"value" validate:"required"`
}
func (c *APIKey) Apply(_ context.Context, req *http.Request) error {
switch c.In {
case "cookie":
req.AddCookie(&http.Cookie{Name: c.Name, Value: c.Value})
case "header":
req.Header.Set(c.Name, c.Value)
case "query":
query := req.URL.Query()
query.Set(c.Name, c.Value)
req.URL.RawQuery = query.Encode()
default:
return errorchain.NewWithMessagef(heimdall.ErrConfiguration,
"unsupported in value (%s) in api key auth strategy", c.In)
}
return nil
}
func (c *APIKey) Hash() []byte {
hash := sha256.New()
hash.Write(stringx.ToBytes(c.In))
hash.Write(stringx.ToBytes(c.Name))
hash.Write(stringx.ToBytes(c.Value))
return hash.Sum(nil)
}