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// Copyright The Notary Project Authors.
// 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 httputil
import (
"context"
"net/http"
"github.com/notaryproject/notation/internal/trace"
"github.com/notaryproject/notation/internal/version"
"oras.land/oras-go/v2/registry/remote/auth"
)
var userAgent = "notation/" + version.GetVersion()
// NewAuthClient returns an *auth.Client with debug log and user agent set
func NewAuthClient(ctx context.Context, httpClient *http.Client) *auth.Client {
httpClient = trace.SetHTTPDebugLog(ctx, httpClient)
client := &auth.Client{
Client: httpClient,
Cache: auth.NewCache(),
ClientID: "notation",
}
client.SetUserAgent(userAgent)
return client
}
// NewClient returns an *http.Client with debug log and user agent set
func NewClient(ctx context.Context, client *http.Client) *http.Client {
client = trace.SetHTTPDebugLog(ctx, client)
return SetUserAgent(client)
}
type userAgentTransport struct {
base http.RoundTripper
}
// RoundTrip returns t.Base.RoundTrip with user agent set in the request Header
func (t *userAgentTransport) RoundTrip(req *http.Request) (*http.Response, error) {
r := req.Clone(req.Context())
if r.Header == nil {
r.Header = http.Header{}
}
r.Header.Set("User-Agent", userAgent)
return t.base.RoundTrip(r)
}
// SetUserAgent sets the user agent for all out-going requests.
func SetUserAgent(client *http.Client) *http.Client {
if client == nil {
client = &http.Client{}
}
if client.Transport == nil {
client.Transport = http.DefaultTransport
}
client.Transport = &userAgentTransport{
base: client.Transport,
}
return client
}
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