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token_source.go
54 lines (48 loc) · 1.33 KB
/
token_source.go
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/*
* Copyright 2022 Armory, Inc.
*
* 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 token
import (
"context"
"go.uber.org/zap"
"net/http"
)
type credentials interface {
GetRequestMetadata(ctx context.Context, uri string) (map[string]string, error)
}
func GetTokenWrapper(base http.RoundTripper, auth Identity, log *zap.SugaredLogger) http.RoundTripper {
creds := GetCredentials(auth, log)
if creds == nil {
return base
}
return &wrappedTokenSource{
base: base,
creds: creds,
}
}
type wrappedTokenSource struct {
base http.RoundTripper
creds credentials
}
func (w *wrappedTokenSource) RoundTrip(r *http.Request) (*http.Response, error) {
m, err := w.creds.GetRequestMetadata(context.TODO(), r.RequestURI)
if err != nil {
return nil, err
}
for k, v := range m {
r.Header.Set(k, v)
}
return w.base.RoundTrip(r)
}