vendor: update buildkit

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/wrap.go

@@ -0,0 +1,96 @@
+// Copyright The OpenTelemetry 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 otelhttp
+
+import (
+	"context"
+	"io"
+	"net/http"
+
+	"go.opentelemetry.io/otel/propagation"
+)
+
+var _ io.ReadCloser = &bodyWrapper{}
+
+// bodyWrapper wraps a http.Request.Body (an io.ReadCloser) to track the number
+// of bytes read and the last error
+type bodyWrapper struct {
+	io.ReadCloser
+	record func(n int64) // must not be nil
+
+	read int64
+	err  error
+}
+
+func (w *bodyWrapper) Read(b []byte) (int, error) {
+	n, err := w.ReadCloser.Read(b)
+	n1 := int64(n)
+	w.read += n1
+	w.err = err
+	w.record(n1)
+	return n, err
+}
+
+func (w *bodyWrapper) Close() error {
+	return w.ReadCloser.Close()
+}
+
+var _ http.ResponseWriter = &respWriterWrapper{}
+
+// respWriterWrapper wraps a http.ResponseWriter in order to track the number of
+// bytes written, the last error, and to catch the returned statusCode
+// TODO: The wrapped http.ResponseWriter doesn't implement any of the optional
+// types (http.Hijacker, http.Pusher, http.CloseNotifier, http.Flusher, etc)
+// that may be useful when using it in real life situations.
+type respWriterWrapper struct {
+	http.ResponseWriter
+	record func(n int64) // must not be nil
+
+	// used to inject the header
+	ctx context.Context
+
+	props propagation.TextMapPropagator
+
+	written     int64
+	statusCode  int
+	err         error
+	wroteHeader bool
+}
+
+func (w *respWriterWrapper) Header() http.Header {
+	return w.ResponseWriter.Header()
+}
+
+func (w *respWriterWrapper) Write(p []byte) (int, error) {
+	if !w.wroteHeader {
+		w.WriteHeader(http.StatusOK)
+	}
+	n, err := w.ResponseWriter.Write(p)
+	n1 := int64(n)
+	w.record(n1)
+	w.written += n1
+	w.err = err
+	return n, err
+}
+
+func (w *respWriterWrapper) WriteHeader(statusCode int) {
+	if w.wroteHeader {
+		return
+	}
+	w.wroteHeader = true
+	w.statusCode = statusCode
+	w.props.Inject(w.ctx, propagation.HeaderCarrier(w.Header()))
+	w.ResponseWriter.WriteHeader(statusCode)
+}