vendor: update buildkit

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

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
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+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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vendor/go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace/api.go

@@ -0,0 +1,28 @@
+// 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 otelhttptrace
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptrace"
+)
+
+// W3C client.
+func W3C(ctx context.Context, req *http.Request) (context.Context, *http.Request) {
+	ctx = httptrace.WithClientTrace(ctx, NewClientTrace(ctx))
+	req = req.WithContext(ctx)
+	return ctx, req
+}

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace/clienttrace.go

@@ -0,0 +1,370 @@
+// 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 otelhttptrace
+
+import (
+	"context"
+	"crypto/tls"
+	"net/http/httptrace"
+	"net/textproto"
+	"strings"
+	"sync"
+
+	"go.opentelemetry.io/contrib"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// HTTP attributes.
+var (
+	HTTPStatus                 = attribute.Key("http.status")
+	HTTPHeaderMIME             = attribute.Key("http.mime")
+	HTTPRemoteAddr             = attribute.Key("http.remote")
+	HTTPLocalAddr              = attribute.Key("http.local")
+	HTTPConnectionReused       = attribute.Key("http.conn.reused")
+	HTTPConnectionWasIdle      = attribute.Key("http.conn.wasidle")
+	HTTPConnectionIdleTime     = attribute.Key("http.conn.idletime")
+	HTTPConnectionStartNetwork = attribute.Key("http.conn.start.network")
+	HTTPConnectionDoneNetwork  = attribute.Key("http.conn.done.network")
+	HTTPConnectionDoneAddr     = attribute.Key("http.conn.done.addr")
+	HTTPDNSAddrs               = attribute.Key("http.dns.addrs")
+)
+
+var (
+	hookMap = map[string]string{
+		"http.dns":     "http.getconn",
+		"http.connect": "http.getconn",
+		"http.tls":     "http.getconn",
+	}
+)
+
+func parentHook(hook string) string {
+	if strings.HasPrefix(hook, "http.connect") {
+		return hookMap["http.connect"]
+	}
+	return hookMap[hook]
+}
+
+// ClientTraceOption allows customizations to how the httptrace.Client
+// collects information.
+type ClientTraceOption func(*clientTracer)
+
+// WithoutSubSpans will modify the httptrace.Client to only collect data
+// as Events and Attributes on a span found in the context.  By default
+// sub-spans will be generated.
+func WithoutSubSpans() ClientTraceOption {
+	return func(ct *clientTracer) {
+		ct.useSpans = false
+	}
+}
+
+// WithRedactedHeaders will be replaced by fixed '****' values for the header
+// names provided.  These are in addition to the sensitive headers already
+// redacted by default: Authorization, WWW-Authenticate, Proxy-Authenticate
+// Proxy-Authorization, Cookie, Set-Cookie
+func WithRedactedHeaders(headers ...string) ClientTraceOption {
+	return func(ct *clientTracer) {
+		for _, header := range headers {
+			ct.redactedHeaders[strings.ToLower(header)] = struct{}{}
+		}
+	}
+}
+
+// WithoutHeaders will disable adding span annotations for the http headers
+// and values.
+func WithoutHeaders() ClientTraceOption {
+	return func(ct *clientTracer) {
+		ct.addHeaders = false
+	}
+}
+
+type clientTracer struct {
+	context.Context
+
+	tr trace.Tracer
+
+	activeHooks     map[string]context.Context
+	root            trace.Span
+	mtx             sync.Mutex
+	redactedHeaders map[string]struct{}
+	addHeaders      bool
+	useSpans        bool
+}
+
+func NewClientTrace(ctx context.Context, opts ...ClientTraceOption) *httptrace.ClientTrace {
+	ct := &clientTracer{
+		Context:     ctx,
+		activeHooks: make(map[string]context.Context),
+		redactedHeaders: map[string]struct{}{
+			"authorization":       {},
+			"www-authenticate":    {},
+			"proxy-authenticate":  {},
+			"proxy-authorization": {},
+			"cookie":              {},
+			"set-cookie":          {},
+		},
+		addHeaders: true,
+		useSpans:   true,
+	}
+	for _, opt := range opts {
+		opt(ct)
+	}
+
+	var tp trace.TracerProvider
+	if span := trace.SpanFromContext(ctx); span.SpanContext().IsValid() {
+		tp = span.TracerProvider()
+	} else {
+		tp = otel.GetTracerProvider()
+	}
+
+	ct.tr = tp.Tracer(
+		"go.opentelemetry.io/otel/instrumentation/httptrace",
+		trace.WithInstrumentationVersion(contrib.SemVersion()),
+	)
+
+	return &httptrace.ClientTrace{
+		GetConn:              ct.getConn,
+		GotConn:              ct.gotConn,
+		PutIdleConn:          ct.putIdleConn,
+		GotFirstResponseByte: ct.gotFirstResponseByte,
+		Got100Continue:       ct.got100Continue,
+		Got1xxResponse:       ct.got1xxResponse,
+		DNSStart:             ct.dnsStart,
+		DNSDone:              ct.dnsDone,
+		ConnectStart:         ct.connectStart,
+		ConnectDone:          ct.connectDone,
+		TLSHandshakeStart:    ct.tlsHandshakeStart,
+		TLSHandshakeDone:     ct.tlsHandshakeDone,
+		WroteHeaderField:     ct.wroteHeaderField,
+		WroteHeaders:         ct.wroteHeaders,
+		Wait100Continue:      ct.wait100Continue,
+		WroteRequest:         ct.wroteRequest,
+	}
+}
+
+func (ct *clientTracer) start(hook, spanName string, attrs ...attribute.KeyValue) {
+	if !ct.useSpans {
+		if ct.root == nil {
+			ct.root = trace.SpanFromContext(ct.Context)
+		}
+		ct.root.AddEvent(hook+".start", trace.WithAttributes(attrs...))
+		return
+	}
+
+	ct.mtx.Lock()
+	defer ct.mtx.Unlock()
+
+	if hookCtx, found := ct.activeHooks[hook]; !found {
+		var sp trace.Span
+		ct.activeHooks[hook], sp = ct.tr.Start(ct.getParentContext(hook), spanName, trace.WithAttributes(attrs...), trace.WithSpanKind(trace.SpanKindClient))
+		if ct.root == nil {
+			ct.root = sp
+		}
+	} else {
+		// end was called before start finished, add the start attributes and end the span here
+		span := trace.SpanFromContext(hookCtx)
+		span.SetAttributes(attrs...)
+		span.End()
+
+		delete(ct.activeHooks, hook)
+	}
+}
+
+func (ct *clientTracer) end(hook string, err error, attrs ...attribute.KeyValue) {
+	if !ct.useSpans {
+		if err != nil {
+			attrs = append(attrs, attribute.String(hook+".error", err.Error()))
+		}
+		ct.root.AddEvent(hook+".done", trace.WithAttributes(attrs...))
+		return
+	}
+
+	ct.mtx.Lock()
+	defer ct.mtx.Unlock()
+	if ctx, ok := ct.activeHooks[hook]; ok {
+		span := trace.SpanFromContext(ctx)
+		if err != nil {
+			span.SetStatus(codes.Error, err.Error())
+		}
+		span.SetAttributes(attrs...)
+		span.End()
+		delete(ct.activeHooks, hook)
+	} else {
+		// start is not finished before end is called.
+		// Start a span here with the ending attributes that will be finished when start finishes.
+		// Yes, it's backwards. v0v
+		ctx, span := ct.tr.Start(ct.getParentContext(hook), hook, trace.WithAttributes(attrs...), trace.WithSpanKind(trace.SpanKindClient))
+		if err != nil {
+			span.SetStatus(codes.Error, err.Error())
+		}
+		ct.activeHooks[hook] = ctx
+	}
+}
+
+func (ct *clientTracer) getParentContext(hook string) context.Context {
+	ctx, ok := ct.activeHooks[parentHook(hook)]
+	if !ok {
+		return ct.Context
+	}
+	return ctx
+}
+
+func (ct *clientTracer) span(hook string) trace.Span {
+	ct.mtx.Lock()
+	defer ct.mtx.Unlock()
+	if ctx, ok := ct.activeHooks[hook]; ok {
+		return trace.SpanFromContext(ctx)
+	}
+	return nil
+}
+
+func (ct *clientTracer) getConn(host string) {
+	ct.start("http.getconn", "http.getconn", semconv.HTTPHostKey.String(host))
+}
+
+func (ct *clientTracer) gotConn(info httptrace.GotConnInfo) {
+	attrs := []attribute.KeyValue{
+		HTTPRemoteAddr.String(info.Conn.RemoteAddr().String()),
+		HTTPLocalAddr.String(info.Conn.LocalAddr().String()),
+		HTTPConnectionReused.Bool(info.Reused),
+		HTTPConnectionWasIdle.Bool(info.WasIdle),
+	}
+	if info.WasIdle {
+		attrs = append(attrs, HTTPConnectionIdleTime.String(info.IdleTime.String()))
+	}
+	ct.end("http.getconn", nil, attrs...)
+}
+
+func (ct *clientTracer) putIdleConn(err error) {
+	ct.end("http.receive", err)
+}
+
+func (ct *clientTracer) gotFirstResponseByte() {
+	ct.start("http.receive", "http.receive")
+}
+
+func (ct *clientTracer) dnsStart(info httptrace.DNSStartInfo) {
+	ct.start("http.dns", "http.dns", semconv.HTTPHostKey.String(info.Host))
+}
+
+func (ct *clientTracer) dnsDone(info httptrace.DNSDoneInfo) {
+	var addrs []string
+	for _, netAddr := range info.Addrs {
+		addrs = append(addrs, netAddr.String())
+	}
+	ct.end("http.dns", info.Err, HTTPDNSAddrs.String(sliceToString(addrs)))
+}
+
+func (ct *clientTracer) connectStart(network, addr string) {
+	ct.start("http.connect."+addr, "http.connect",
+		HTTPRemoteAddr.String(addr),
+		HTTPConnectionStartNetwork.String(network),
+	)
+}
+
+func (ct *clientTracer) connectDone(network, addr string, err error) {
+	ct.end("http.connect."+addr, err,
+		HTTPConnectionDoneAddr.String(addr),
+		HTTPConnectionDoneNetwork.String(network),
+	)
+}
+
+func (ct *clientTracer) tlsHandshakeStart() {
+	ct.start("http.tls", "http.tls")
+}
+
+func (ct *clientTracer) tlsHandshakeDone(_ tls.ConnectionState, err error) {
+	ct.end("http.tls", err)
+}
+
+func (ct *clientTracer) wroteHeaderField(k string, v []string) {
+	if ct.useSpans && ct.span("http.headers") == nil {
+		ct.start("http.headers", "http.headers")
+	}
+	if !ct.addHeaders {
+		return
+	}
+	k = strings.ToLower(k)
+	value := sliceToString(v)
+	if _, ok := ct.redactedHeaders[k]; ok {
+		value = "****"
+	}
+	ct.root.SetAttributes(attribute.String("http."+k, value))
+}
+
+func (ct *clientTracer) wroteHeaders() {
+	if ct.useSpans && ct.span("http.headers") != nil {
+		ct.end("http.headers", nil)
+	}
+	ct.start("http.send", "http.send")
+}
+
+func (ct *clientTracer) wroteRequest(info httptrace.WroteRequestInfo) {
+	if info.Err != nil {
+		ct.root.SetStatus(codes.Error, info.Err.Error())
+	}
+	ct.end("http.send", info.Err)
+}
+
+func (ct *clientTracer) got100Continue() {
+	span := ct.root
+	if ct.useSpans {
+		span = ct.span("http.receive")
+	}
+	span.AddEvent("GOT 100 - Continue")
+}
+
+func (ct *clientTracer) wait100Continue() {
+	span := ct.root
+	if ct.useSpans {
+		span = ct.span("http.receive")
+	}
+	span.AddEvent("GOT 100 - Wait")
+}
+
+func (ct *clientTracer) got1xxResponse(code int, header textproto.MIMEHeader) error {
+	span := ct.root
+	if ct.useSpans {
+		span = ct.span("http.receive")
+	}
+	span.AddEvent("GOT 1xx", trace.WithAttributes(
+		HTTPStatus.Int(code),
+		HTTPHeaderMIME.String(sm2s(header)),
+	))
+	return nil
+}
+
+func sliceToString(value []string) string {
+	if len(value) == 0 {
+		return "undefined"
+	}
+	return strings.Join(value, ",")
+}
+
+func sm2s(value map[string][]string) string {
+	var buf strings.Builder
+	for k, v := range value {
+		if buf.Len() != 0 {
+			buf.WriteString(",")
+		}
+		buf.WriteString(k)
+		buf.WriteString("=")
+		buf.WriteString(sliceToString(v))
+	}
+	return buf.String()
+}

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace/go.mod

@@ -0,0 +1,14 @@
+module go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace
+
+go 1.15
+
+replace go.opentelemetry.io/contrib => ../../../../..
+
+require (
+	github.com/google/go-cmp v0.5.6
+	github.com/stretchr/testify v1.7.0
+	go.opentelemetry.io/contrib v0.21.0
+	go.opentelemetry.io/otel v1.0.0-RC1
+	go.opentelemetry.io/otel/oteltest v1.0.0-RC1
+	go.opentelemetry.io/otel/trace v1.0.0-RC1
+)

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace/go.sum

@@ -0,0 +1,21 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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vendor/go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace/httptrace.go

@@ -0,0 +1,68 @@
+// 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 otelhttptrace
+
+import (
+	"context"
+	"net/http"
+
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/baggage"
+	"go.opentelemetry.io/otel/propagation"
+	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// Option is a function that allows configuration of the httptrace Extract()
+// and Inject() functions
+type Option func(*config)
+
+type config struct {
+	propagators propagation.TextMapPropagator
+}
+
+func newConfig(opts []Option) *config {
+	c := &config{propagators: otel.GetTextMapPropagator()}
+	for _, o := range opts {
+		o(c)
+	}
+	return c
+}
+
+// WithPropagators sets the propagators to use for Extraction and Injection
+func WithPropagators(props propagation.TextMapPropagator) Option {
+	return func(c *config) {
+		c.propagators = props
+	}
+}
+
+// Extract returns the Attributes, Context Entries, and SpanContext that were encoded by Inject.
+func Extract(ctx context.Context, req *http.Request, opts ...Option) ([]attribute.KeyValue, baggage.Baggage, trace.SpanContext) {
+	c := newConfig(opts)
+	ctx = c.propagators.Extract(ctx, propagation.HeaderCarrier(req.Header))
+
+	attrs := append(
+		semconv.HTTPServerAttributesFromHTTPRequest("", "", req),
+		semconv.NetAttributesFromHTTPRequest("tcp", req)...,
+	)
+
+	return attrs, baggage.FromContext(ctx), trace.SpanContextFromContext(ctx)
+}
+
+func Inject(ctx context.Context, req *http.Request, opts ...Option) {
+	c := newConfig(opts)
+	c.propagators.Inject(ctx, propagation.HeaderCarrier(req.Header))
+}