/
util.go
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/
util.go
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// Copyright Istio 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 forwarder
import (
"bytes"
"fmt"
"net/http"
"istio.io/pkg/log"
)
const (
hostHeader = "Host"
)
var fwLog = log.RegisterScope("forwarder", "echo clientside", 0)
func writeHeaders(requestID int, header http.Header, outBuffer bytes.Buffer, addFn func(string, string)) {
for key, values := range header {
for _, v := range values {
addFn(key, v)
if key == hostHeader {
outBuffer.WriteString(fmt.Sprintf("[%d] Host=%s\n", requestID, v))
} else {
outBuffer.WriteString(fmt.Sprintf("[%d] Header=%s:%s\n", requestID, key, v))
}
}
}
}