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Merge pull request #113283 from 3point2/kubectl-issue-gh-791

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Fix SPDY proxy authentication with percent escaped characters
This commit is contained in:
Kubernetes Prow Robot 2022-12-09 14:33:45 -08:00 committed by GitHub
commit bdc6fb51bf
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2 changed files with 28 additions and 14 deletions
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12
staging/src/k8s.io/apimachinery/pkg/util/httpstream/spdy/roundtripper.go
View File

@ -184,12 +184,15 @@ func (s *SpdyRoundTripper) dialWithHttpProxy(req *http.Request, proxyURL *url.UR
//nolint:staticcheck // SA1019 ignore deprecated httputil.NewProxyClientConn
proxyClientConn := httputil.NewProxyClientConn(proxyDialConn, nil)
_, err = proxyClientConn.Do(&proxyReq)
response, err := proxyClientConn.Do(&proxyReq)
//nolint:staticcheck // SA1019 ignore deprecated httputil.ErrPersistEOF: it might be
// returned from the invocation of proxyClientConn.Do
if err != nil && err != httputil.ErrPersistEOF {
return nil, err
}
if response != nil && response.StatusCode >= 300 || response.StatusCode < 200 {
return nil, fmt.Errorf("CONNECT request to %s returned response: %s", proxyURL.Redacted(), response.Status)
}
rwc, _ := proxyClientConn.Hijack()
@ -294,9 +297,10 @@ func (s *SpdyRoundTripper) proxyAuth(proxyURL *url.URL) string {
if proxyURL == nil || proxyURL.User == nil {
return ""
}
credentials := proxyURL.User.String()
encodedAuth := base64.StdEncoding.EncodeToString([]byte(credentials))
return fmt.Sprintf("Basic %s", encodedAuth)
username := proxyURL.User.Username()
password, _ := proxyURL.User.Password()
auth := username + ":" + password
return "Basic " + base64.StdEncoding.EncodeToString([]byte(auth))
}
// RoundTrip executes the Request and upgrades it. After a successful upgrade,

30
staging/src/k8s.io/apimachinery/pkg/util/httpstream/spdy/roundtripper_test.go
View File

@ -20,7 +20,6 @@ import (
"context"
"crypto/tls"
"crypto/x509"
"encoding/base64"
"io"
"net"
"net/http"
@ -291,6 +290,16 @@ func TestRoundTripAndNewConnection(t *testing.T) {
serverStatusCode: http.StatusSwitchingProtocols,
shouldError: false,
},
"proxied valid https, proxy auth with chars that percent escape -> valid https": {
serverFunc: httpsServerValidHostname(t),
proxyServerFunc: httpsServerValidHostname(t),
proxyAuth: url.UserPassword("proxy user", "proxypasswd%"),
clientTLS: &tls.Config{RootCAs: localhostPool},
serverConnectionHeader: "Upgrade",
serverUpgradeHeader: "SPDY/3.1",
serverStatusCode: http.StatusSwitchingProtocols,
shouldError: false,
},
}
for k, testCase := range testCases {
@ -400,18 +409,19 @@ func TestRoundTripAndNewConnection(t *testing.T) {
}
}
var expectedProxyAuth string
if testCase.proxyAuth != nil {
encodedCredentials := base64.StdEncoding.EncodeToString([]byte(testCase.proxyAuth.String()))
expectedProxyAuth = "Basic " + encodedCredentials
}
if len(expectedProxyAuth) == 0 && proxyCalledWithAuth {
expectedUsername := testCase.proxyAuth.Username()
expectedPassword, _ := testCase.proxyAuth.Password()
username, password, ok := (&http.Request{Header: http.Header{"Authorization": []string{proxyCalledWithAuthHeader}}}).BasicAuth()
if !ok {
t.Fatalf("invalid proxy auth header %s", proxyCalledWithAuthHeader)
}
if username != expectedUsername || password != expectedPassword {
t.Fatalf("expected proxy auth \"%s:%s\", got \"%s:%s\"", expectedUsername, expectedPassword, username, password)
}
} else if proxyCalledWithAuth {
t.Fatalf("proxy authorization unexpected, got %q", proxyCalledWithAuthHeader)
}
if proxyCalledWithAuthHeader != expectedProxyAuth {
t.Fatalf("expected to see a call to the proxy with credentials %q, got %q", testCase.proxyAuth, proxyCalledWithAuthHeader)
}
})
}
}