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64 lines
1.9 KiB
64 lines
1.9 KiB
5 years ago
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From 2fce9e3eefd9dda6d74660ebe49f731f8b11111a Mon Sep 17 00:00:00 2001
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From: Jan Chaloupka <jchaloup@redhat.com>
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Date: Thu, 2 Jan 2020 12:29:57 +0100
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Subject: [PATCH] Hide bearer token in logs: upstream #81330
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---
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.../k8s.io/client-go/transport/round_trippers.go | 33 ++++++++++++++++++++++
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1 file changed, 33 insertions(+)
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diff --git a/src/k8s.io/kubernetes/staging/src/k8s.io/client-go/transport/round_trippers.go b/src/k8s.io/kubernetes/staging/src/k8s.io/client-go/transport/round_trippers.go
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index 117a9c8..844ee9a 100644
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--- a/src/k8s.io/kubernetes/staging/src/k8s.io/client-go/transport/round_trippers.go
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+++ b/src/k8s.io/kubernetes/staging/src/k8s.io/client-go/transport/round_trippers.go
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@@ -409,6 +409,38 @@ func (rt *debuggingRoundTripper) CancelRequest(req *http.Request) {
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}
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}
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+var knownAuthTypes = map[string]bool{
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+ "bearer": true,
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+ "basic": true,
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+ "negotiate": true,
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+}
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+
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+// maskValue masks credential content from authorization headers
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+// See https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Authorization
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+func maskValue(key string, value string) string {
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+ if !strings.EqualFold(key, "Authorization") {
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+ return value
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+ }
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+ if len(value) == 0 {
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+ return ""
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+ }
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+ var authType string
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+ if i := strings.Index(value, " "); i > 0 {
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+ authType = value[0:i]
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+ } else {
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+ authType = value
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+ }
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+ if !knownAuthTypes[strings.ToLower(authType)] {
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+ return "<masked>"
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+ }
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+ if len(value) > len(authType)+1 {
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+ value = authType + " <masked>"
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+ } else {
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+ value = authType
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+ }
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+ return value
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+}
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+
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func (rt *debuggingRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
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reqInfo := newRequestInfo(req)
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@@ -423,6 +455,7 @@ func (rt *debuggingRoundTripper) RoundTrip(req *http.Request) (*http.Response, e
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klog.Infof("Request Headers:")
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for key, values := range reqInfo.RequestHeaders {
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for _, value := range values {
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+ value = maskValue(key, value)
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klog.Infof(" %s: %s", key, value)
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}
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}
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--
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2.7.5
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